CN110867711B - Processing and assembling process for radio frequency coaxial cable connector - Google Patents
Processing and assembling process for radio frequency coaxial cable connector Download PDFInfo
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- CN110867711B CN110867711B CN201911206889.8A CN201911206889A CN110867711B CN 110867711 B CN110867711 B CN 110867711B CN 201911206889 A CN201911206889 A CN 201911206889A CN 110867711 B CN110867711 B CN 110867711B
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000008569 process Effects 0.000 title claims abstract description 44
- 239000004020 conductor Substances 0.000 claims abstract description 87
- 238000007689 inspection Methods 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 238000003754 machining Methods 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 7
- 210000003462 vein Anatomy 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 70
- 229910000679 solder Inorganic materials 0.000 claims description 49
- 238000004140 cleaning Methods 0.000 claims description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 238000002844 melting Methods 0.000 claims description 24
- 230000008018 melting Effects 0.000 claims description 24
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 20
- 239000010931 gold Substances 0.000 claims description 20
- 229910052737 gold Inorganic materials 0.000 claims description 20
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 18
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 18
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims description 9
- 230000007547 defect Effects 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 238000005476 soldering Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 238000004886 process control Methods 0.000 abstract description 9
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- AINBZKYUNWUTRE-UHFFFAOYSA-N ethanol;propan-2-ol Chemical compound CCO.CC(C)O AINBZKYUNWUTRE-UHFFFAOYSA-N 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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Abstract
The invention provides a processing and assembling process of a radio frequency coaxial cable connector, which comprises the following steps: s1) cable inspection, super-long cutting and preheating treatment: the coaxiality, distortion, ring veins, cracks, sand holes and pollution of an inner conductor and an outer conductor of the assembled cable are checked, the qualified cable is cut in a proper super-long way according to the required length, the cut cable is placed in an environment with the temperature of minus 45 ℃ to minus 35 ℃ for storage for 1-2 hours and then placed in a room temperature environment for 1-2 hours, the processing and assembling process of the radio frequency coaxial cable connector is optimized, the assembling process is standard, the production and assembling cost of the radio frequency coaxial connector is reduced, effective and strict process control and quality acceptance control are realized in each link, the influence factors of each link in the assembling and machining process are fully considered, the influence factors can be reasonably avoided, the reliability of the radio frequency coaxial cable connector and the assembly is improved, and the product quality is ensured.
Description
Technical Field
The invention relates to the technical field, in particular to a processing and assembling process of a radio frequency coaxial cable connector.
Background
The connector of the radio frequency coaxial cable is a functional element which makes a circuit be connected, disconnected or switched by means of the action of electric signals or mechanical force, and transmits electric signals or electronic energy, therefore, the connector can be found in places where electronic systems exist, in large-scale electronic systems, thousands of connectors are often required, so to speak, the connector is one of key elements for ensuring the normal operation and safe operation of various electronic systems, the radio frequency coaxial cable connector needs to pay special attention to the assembly process in the connection production process, but the traditional radio frequency coaxial cable connector processing and assembly process has a plurality of defects, the processing and assembly process of the connector is old and can not meet the use requirement, the assembly process is not standard enough, the production and assembly cost of the radio frequency coaxial cable connector is high, the production and assembly process is complex, and the consistency and the stability of products can not be ensured, each link cannot achieve effective and strict process control and quality acceptance control, each procedure is not standard and reasonable enough, and influence factors of each link during assembly and processing cannot be fully considered, so that the process cannot be reasonably avoided, the reliability of the radio frequency coaxial cable connector and the radio frequency coaxial cable connector assembly is reduced, the quality of a product is difficult to guarantee, and therefore the implementation of the radio frequency coaxial cable connector processing and assembling process capable of solving the problems is imperative.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the existing defects, provide a processing and assembling process for a radio frequency coaxial cable connector, optimize the processing and assembling process for the connector, standardize the assembling process, reduce the production and assembling cost of the radio frequency coaxial connector, simplify the production flow, ensure the consistency and stability of products, achieve effective and strict process control and quality acceptance control in each link, improve the reliability of the radio frequency coaxial cable connector and components, ensure the quality of the products, and effectively solve the problems in the background technology.
In order to achieve the above object, the present invention provides a process for processing and assembling a radio frequency coaxial cable connector, comprising the following steps:
s1) cable inspection, super-long cutting and preheating treatment: inspecting coaxiality, distortion, ring veins, cracks, sand holes and pollution of an inner conductor and an outer conductor of the assembled cable, cutting the qualified cable in a proper superlong way according to the required length, placing the cut cable in an environment with the temperature of minus 45 ℃ to minus 35 ℃ for 1-2 hours, then placing the cable in a room temperature environment for 1-2 hours, then placing the cable in a thermal circulation device, heating the cable to the highest temperature of 65 ℃ to 80 ℃ for 1-2 hours, placing the cable in the room temperature for 1-2 hours, cutting the axis of the cable and the edge of the outer conductor flat, repeating the complete thermal circulation for 3-5 times, and placing the cable in the room temperature for a certain time after the final thermal circulation is finished;
s2) cable final length cut, end stripped and inspected: after preheating, cutting the cable according to a specified length, stripping the end of the cable by adopting a special tool, removing burrs, and then carrying out treatment and inspection on the stripped end to ensure that the outer conductor has no burrs or surface defects, the outer conductor is level to the insulating medium, and the inner conductor is not damaged;
s3) removing gold layers and pre-tinning of cables and connectors: melting a section of solder to a certain temperature by an electric soldering iron, melting a gold layer by the solder, sucking the solder by a tin sucking rope, fixing a connector on a polytetrafluoroethylene socket with a proper size and a fixing part, melting the solder to the surface of a welding part after melting to a certain temperature, sucking by a tin sucking device, and repeating for multiple times until the surface of the pre-tinned part is glossy;
s4) cable insertion into connector and check: the cable penetrates through a captive connecting nut, a processed cable end is inserted into a connector by means of a proper tool, the outer conductor and a PTFE (polytetrafluoroethylene) insulating medium of the cable are enabled to be flush with the inner wall of a cavity of the connector, the inner conductor is completely inserted into a forked groove at the tail end of a central contact in the connector, a certain included angle relation between the formed cable and the connector is guaranteed, and the formed cable and the connector are inspected through an inspection hole or an assembly hole;
s5) inner conductor and connector welding, cleaning and inspection: firstly, welding the inner conductor of the cable with the central contact of the connector by using a proper electric soldering iron and specified welding flux, immediately cleaning the welding position of the central conductor and a cavity in the connector by using a solvent until no residual welding flux or other visible pollution exists, and checking the welding position to ensure that the inner conductor is completely inserted into a tail-end forked groove of the central contact of the connector;
s6) welding and cleaning of the outer conductor and the connector: welding the outer conductor of the cable to the connector, and thoroughly cleaning the connector by using a solvent after welding;
s7) capping and washing: after welding and cleaning, the cover is assembled on the inspection hole or the assembly hole of the connector, the cover is completely inserted into the inspection hole or the assembly hole and is welded by the solder left by removing a gold layer or pre-tinning, a welding area extends to the periphery of the whole cover to prevent the redundant solder from flowing into the cavity of the connector to form redundant substances, after welding is completed, the cover is thoroughly cleaned by a solvent, the internal thread of the captive connecting nut is tightly connected with the assembly part of the connector according to certain torque, and the connector at the end of the cable and the cable are kept not to rotate;
s8) assembling the finished product: after the cable and connector are assembled, the correct size and clean surface are checked and guaranteed, the connector in the cable assembly qualified by the check is covered with a proper protective cover, and the cable is put into a packaging bag filled with inert gas and put into a special container for storage.
As a preferred technical scheme of the invention: the solder is one of HLSn63PbA (B) and HLSn63PbAgA (B) in a strip shape or a wire shape.
As a preferred technical scheme of the invention: the solvent is one of ethanol with the purity of 98.5%, isopropanol with the purity of 99% and trichlorotrifluoroethane with the purity of 98.8%.
As a preferred technical scheme of the invention: the temperature of the gold layer removing and the pre-tinning of the cable and the connector is 220-280 ℃.
As a preferred technical scheme of the invention: the cable is placed in a thermal cycle device when being preheated.
As a preferred technical scheme of the invention: the moment when the mooring connecting nut is connected with the connector assembly is 0.7N.m-1.2 N.m.
As a preferred technical scheme of the invention: the temperature change rate of the cable preheating treatment is not higher than 2 ℃/min.
As a preferred technical scheme of the invention: the cable is placed in room temperature for 1-2 days after the final thermal cycle is finished
Compared with the prior art, the invention has the beneficial effects that: the processing and assembling process of the connector is optimized, the assembling process is standard, the production and assembling cost of the radio frequency coaxial connector is reduced, the production flow is simplified, the consistency and the stability of products are ensured, effective and strict process control and quality acceptance control are realized in each link, each process is standard and reasonable, the influence factors of each link during assembly and machining are fully considered, the influence factors can be reasonably avoided, the reliability of the radio frequency coaxial cable connector and the radio frequency coaxial cable connector assembly is improved, and the quality of the products is ensured.
Drawings
Fig. 1 is a step diagram of a process for manufacturing an rf coaxial cable connector according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides the following technical solutions:
the first embodiment is as follows: s1) cable inspection, super-long cutting and preheating treatment: inspecting coaxiality, distortion, ring veins, cracks, sand holes and pollution of an inner conductor and an outer conductor of the assembled cable, cutting the qualified cable in a proper ultra-long way according to the required length, placing the cut cable in an environment at minus 45 ℃ for 1 hour, then placing the cable in a room temperature environment for 1 hour, then placing the cable in a thermal cycle device, heating the cable to the maximum temperature of 65 ℃ for 1 hour, then placing the cable in the room temperature for 1 hour, flattening the axis of the cable and the edge of the outer conductor, repeating 3 times of complete thermal cycle, wherein the temperature change rate of the cable preheating treatment is not higher than 2 ℃/min, placing the cable in the room temperature for 1 day after the final thermal cycle is finished, and completely placing the cable in the thermal cycle device during the preheating treatment;
s2) cable final length cut, end stripped and inspected: after preheating, cutting the cable according to a specified length, stripping the end of the cable by adopting a special tool, removing burrs, and then carrying out treatment and inspection on the stripped end to ensure that the outer conductor has no burrs or surface defects, the outer conductor is level to the insulating medium, and the inner conductor is not damaged;
s3) removing gold layers and pre-tinning of cables and connectors: melting a section of solder of HLSn63PbA (B) at a cable center contact through an electric iron to 220 ℃, melting a gold layer by the solder, sucking the solder by a solder sucking rope, fixing a connector on a polytetrafluoroethylene socket with a proper size and a fixing part, melting the solder of the HLSn63PbA (B) to the surface of a welding part after melting the solder of the HLSn 220 ℃, sucking the solder by a tin sucking device, and repeating for many times until the surface of pre-tinned part is glossy;
s4) cable insertion into connector and check: the cable penetrates through a captive connecting nut, a processed cable end is inserted into a connector by means of a proper tool, the outer conductor and a PTFE (polytetrafluoroethylene) insulating medium of the cable are enabled to be flush with the inner wall of a cavity of the connector, the inner conductor is completely inserted into a forked groove at the tail end of a central contact in the connector, a certain included angle relation between the formed cable and the connector is guaranteed, and the formed cable and the connector are inspected through an inspection hole or an assembly hole;
s5) inner conductor and connector welding, cleaning and inspection: using a suitable electric iron and prescribed HLSn63PbA (B) solder, first completing the soldering of the cable inner conductor to the connector center contact, immediately cleaning the center conductor soldering site and the cavity in the connector with 98.5% ethanol until there is no remaining flux and other visible contamination, and inspecting the soldering site to ensure that the inner conductor is fully inserted into the end fork-shaped groove of the connector center contact;
s6) welding and cleaning of the outer conductor and the connector: welding an outer conductor of the cable on the connector, and thoroughly cleaning the connector by adopting 98.5% ethanol after welding;
s7) capping and washing: after welding and cleaning, the cover is assembled on the inspection hole or the assembly hole of the connector, the cover is completely inserted into the inspection hole or the assembly hole and is welded by the solder left by removing a gold layer or pre-tinning, a welding area extends to the periphery of the whole cover to prevent the redundant solder from flowing into the cavity of the connector to form redundant substances, after the welding is completed, the cover is thoroughly cleaned by adopting 98.5 percent ethanol, the internal thread of the captive connecting nut is tightly screwed with the assembly part of the connector according to the torque of 0.7N.m, and the connector at the end of the cable and the cable are kept not to rotate;
s8) assembling the finished product: after the cable and connector are assembled, the correct size and clean surface are checked and guaranteed, the connector in the cable assembly qualified by the check is covered with a proper protective cover, and the cable is put into a packaging bag filled with inert gas and put into a special container for storage.
The processing and assembling process of the connector is optimized, the assembling process is standard, the production and assembling cost of the radio frequency coaxial connector is reduced, the production flow is simplified, the consistency and the stability of products are ensured, effective and strict process control and quality acceptance control are realized in each link, each process is standard and reasonable, the influence factors of each link during assembly and machining are fully considered, the influence factors can be reasonably avoided, the reliability of the radio frequency coaxial cable connector and the radio frequency coaxial cable connector assembly is improved, and the quality of the products is ensured.
Example two: s1) cable inspection, super-long cutting and preheating treatment: inspecting coaxiality, distortion, ring veins, cracks, sand holes and pollution of an inner conductor and an outer conductor of the assembled cable, cutting the qualified cable in a proper ultra-long way according to the required length, placing the cut cable in an environment at minus 40 ℃ for 1.5 hours, then placing the cable in a room temperature environment for 1.5 hours, then placing the cable in a thermal cycle device, heating the cable to the maximum temperature of 70 ℃ for 1.5 hours, then placing the cable in the room temperature for 1.5 hours, flattening the axis of the cable and the edge of the outer conductor, repeating 4 times of complete thermal cycle, wherein the temperature change rate of the cable preheating treatment is not higher than 2 ℃/min, placing the cable in the room temperature for 1.5 days after the final thermal cycle is finished, and placing the cable in the thermal cycle device completely during the preheating treatment;
s2) cable final length cut, end stripped and inspected: after preheating, cutting the cable according to a specified length, stripping the end of the cable by adopting a special tool, removing burrs, and then carrying out treatment and inspection on the stripped end to ensure that the outer conductor has no burrs or surface defects, the outer conductor is level to the insulating medium, and the inner conductor is not damaged;
s3) removing gold layers and pre-tinning of cables and connectors: melting a section of solder of HLSn63PbAgA (B) at a central contact of the cable to 240 ℃ through an electric iron, melting a gold layer by using the solder, sucking the solder by using a tin sucking rope, fixing a connector on a polytetrafluoroethylene socket with a proper size and a fixing part, melting the solder of the HLSn63PbAgA (B) to the surface of a welding part after melting at 240 ℃, sucking by using a tin sucking device, and repeating for multiple times until the surface of pre-tinned part is glossy;
s4) cable insertion into connector and check: the cable penetrates through a captive connecting nut, a processed cable end is inserted into a connector by means of a proper tool, the outer conductor and a PTFE (polytetrafluoroethylene) insulating medium of the cable are enabled to be flush with the inner wall of a cavity of the connector, the inner conductor is completely inserted into a forked groove at the tail end of a central contact in the connector, a certain included angle relation between the formed cable and the connector is guaranteed, and the formed cable and the connector are inspected through an inspection hole or an assembly hole;
s5) inner conductor and connector welding, cleaning and inspection: firstly, welding the inner conductor of the cable and the central contact of the connector by using a proper electric iron and specified HLSn63PbAgA (B) welding flux, immediately cleaning the welding position of the central conductor and a cavity in the connector by using 99% isopropanol until no residual welding flux and other visible pollution exist, and checking the welding position to ensure that the inner conductor is completely inserted into an end forked groove of the central contact of the connector;
s6) welding and cleaning of the outer conductor and the connector: welding an outer conductor of the cable on the connector, and thoroughly cleaning the connector by using 99% isopropanol after welding;
s7) capping and washing: after welding and cleaning, the cover is assembled on an inspection hole or an assembly hole of the connector, the cover is completely inserted into the inspection hole or the assembly hole and is welded by solder left by removing a gold layer or pre-tinning, a welding area extends to the periphery of the whole cover to prevent redundant solder from flowing into a cavity of the connector to form redundant substances, after welding is completed, the cover is thoroughly cleaned by using 99% isopropanol ethanol, the internal thread of the captive connecting nut is tightly screwed with the assembly part of the connector according to the torque of 0.9N.m, and the connector at the end of the cable and the cable are kept from rotating;
s8) assembling the finished product: after the cable and connector are assembled, the correct size and clean surface are checked and guaranteed, the connector in the cable assembly qualified by the check is covered with a proper protective cover, and the cable is put into a packaging bag filled with inert gas and put into a special container for storage.
The processing and assembling process of the connector is optimized, the assembling process is standard, the production and assembling cost of the radio frequency coaxial connector is reduced, the production flow is simplified, the consistency and the stability of products are ensured, effective and strict process control and quality acceptance control are realized in each link, each process is standard and reasonable, the influence factors of each link during assembly and machining are fully considered, the influence factors can be reasonably avoided, the reliability of the radio frequency coaxial cable connector and the radio frequency coaxial cable connector assembly is improved, and the quality of the products is ensured.
Example three: s1) cable inspection, super-long cutting and preheating treatment: inspecting coaxiality, distortion, ring veins, cracks, sand holes and pollution of an inner conductor and an outer conductor of the assembled cable, cutting the qualified cable in a proper ultra-long way according to the required length, placing the cut cable in an environment at minus 40 ℃ for 2 hours, then placing the cable in a room temperature environment for 2 hours, then placing the cable in a thermal cycle device, heating the cable to the maximum temperature of 75 ℃ for 2 hours, then placing the cable in the room temperature for 2 hours, flattening the axis of the cable and the edge of the outer conductor, repeating 4 times of complete thermal cycle, wherein the temperature change rate of the cable preheating treatment is not higher than 2 ℃/min, placing the cable in the room temperature for 1.5 days after the final thermal cycle is finished, and placing the cable in the thermal cycle device completely during the preheating treatment;
s2) cable final length cut, end stripped and inspected: after preheating, cutting the cable according to a specified length, stripping the end of the cable by adopting a special tool, removing burrs, and then carrying out treatment and inspection on the stripped end to ensure that the outer conductor has no burrs or surface defects, the outer conductor is level to the insulating medium, and the inner conductor is not damaged;
s3) removing gold layers and pre-tinning of cables and connectors: melting a section of solder of HLSn63PbA (B) at a cable center contact through an electric iron to 260 ℃, melting a gold layer by the solder, sucking the solder by a solder sucking rope, fixing a connector on a polytetrafluoroethylene socket with a proper size and a fixing part, melting the solder of the HLSn63PbA (B) to the surface of a welding part after melting at 260 ℃, sucking by a solder sucking device, and repeating for multiple times until the surface of pre-tinning is glossy;
s4) cable insertion into connector and check: the cable penetrates through a captive connecting nut, a processed cable end is inserted into a connector by means of a proper tool, the outer conductor and a PTFE (polytetrafluoroethylene) insulating medium of the cable are enabled to be flush with the inner wall of a cavity of the connector, the inner conductor is completely inserted into a forked groove at the tail end of a central contact in the connector, a certain included angle relation between the formed cable and the connector is guaranteed, and the formed cable and the connector are inspected through an inspection hole or an assembly hole;
s5) inner conductor and connector welding, cleaning and inspection: using a suitable electric iron and a prescribed HLSn63PbA (B) solder, firstly completing the welding of the inner conductor of the cable and the central contact of the connector, immediately cleaning the welding position of the central conductor and the cavity in the connector by using 98.8% trichlorotrifluoroethane until no residual welding flux and other visible pollution exist, and checking the welding position to ensure that the inner conductor is completely inserted into the tail end forked groove of the central contact of the connector;
s6) welding and cleaning of the outer conductor and the connector: welding an outer conductor of the cable on the connector, and thoroughly cleaning by adopting 98.8% trichlorotrifluoroethane after welding;
s7) capping and washing: after welding and cleaning, the cover is assembled on the inspection hole or the assembly hole of the connector, the cover is completely inserted into the inspection hole or the assembly hole and is welded by the solder left by removing a gold layer or pre-tinning, a welding area extends to the periphery of the whole cover to prevent the redundant solder from flowing into the cavity of the connector to form redundant substances, after welding is completed, 98.8 percent trichlorotrifluoroethane is adopted for complete cleaning, the internal thread of the captive connecting nut is tightly screwed with the assembly part of the connector according to the torque of 1.0N.m, and the connector at the end of the cable and the cable are kept from rotating;
s8) assembling the finished product: after the cable and connector are assembled, the correct size and clean surface are checked and guaranteed, the connector in the cable assembly qualified by the check is covered with a proper protective cover, and the cable is put into a packaging bag filled with inert gas and put into a special container for storage.
The processing and assembling process of the connector is optimized, the assembling process is standard, the production and assembling cost of the radio frequency coaxial connector is reduced, the production flow is simplified, the consistency and the stability of products are ensured, effective and strict process control and quality acceptance control are realized in each link, each process is standard and reasonable, the influence factors of each link during assembly and machining are fully considered, the influence factors can be reasonably avoided, the reliability of the radio frequency coaxial cable connector and the radio frequency coaxial cable connector assembly is improved, and the quality of the products is ensured.
Example four: s1) cable inspection, super-long cutting and preheating treatment: inspecting coaxiality, distortion, ring veins, cracks, sand holes and pollution of an inner conductor and an outer conductor of the assembled cable, cutting the qualified cable in a proper ultra-long way according to the required length, placing the cut cable in an environment at minus 35 ℃ for 2 hours, then placing the cable in a room temperature environment for 2 hours, then placing the cable in a thermal cycle device, heating the cable to the maximum temperature of 80 ℃ for 2 hours, then placing the cable in the room temperature for 2 hours, flattening the axis of the cable and the edge of the outer conductor, repeating 5 times of complete thermal cycle, wherein the temperature change rate of the cable preheating treatment is not higher than 2 ℃/min, placing the cable in the room temperature for 2 days after the final thermal cycle is finished, and completely placing the cable in the thermal cycle device during the preheating treatment;
s2) cable final length cut, end stripped and inspected: after preheating, cutting the cable according to a specified length, stripping the end of the cable by adopting a special tool, removing burrs, and then carrying out treatment and inspection on the stripped end to ensure that the outer conductor has no burrs or surface defects, the outer conductor is level to the insulating medium, and the inner conductor is not damaged;
s3) removing gold layers and pre-tinning of cables and connectors: melting a section of solder of HLSn63PbAgA (B) at a central contact of the cable to 280 ℃ through an electric iron, melting a gold layer by using the solder, sucking the solder by using a tin sucking rope, fixing a connector on a polytetrafluoroethylene socket with a proper size and a fixing part, melting the solder of the HLSn63PbAgA (B) to the surface of a welding part after melting the solder of the HLSn63PbAgA (B) at 280 ℃, sucking the solder by using a tin sucking device, and repeating for multiple times until the surface of pre-tinned part has luster;
s4) cable insertion into connector and check: the cable penetrates through a captive connecting nut, a processed cable end is inserted into a connector by means of a proper tool, the outer conductor and a PTFE (polytetrafluoroethylene) insulating medium of the cable are enabled to be flush with the inner wall of a cavity of the connector, the inner conductor is completely inserted into a forked groove at the tail end of a central contact in the connector, a certain included angle relation between the formed cable and the connector is guaranteed, and the formed cable and the connector are inspected through an inspection hole or an assembly hole;
s5) inner conductor and connector welding, cleaning and inspection: using a suitable electric iron and a prescribed HLSn63PbA (B) solder, firstly completing the welding of the inner conductor of the cable and the central contact of the connector, immediately cleaning the welding position of the central conductor and the cavity in the connector by using 99% isopropanol until no residual flux and other visible pollution exist, and checking the welding position to ensure that the inner conductor is completely inserted into the tail-end forked groove of the central contact of the connector;
s6) welding and cleaning of the outer conductor and the connector: welding an outer conductor of the cable on the connector, and thoroughly cleaning the connector by using 99% isopropanol after welding;
s7) capping and washing: after welding and cleaning, the cover is assembled on an inspection hole or an assembly hole of the connector, the cover is completely inserted into the inspection hole or the assembly hole and is welded by solder left by removing a gold layer or pre-tinning, a welding area extends to the periphery of the whole cover to prevent redundant solder from flowing into a cavity of the connector to form redundant substances, after welding is completed, the cover is thoroughly cleaned by using 99% isopropanol, the internal thread of the captive connecting nut is tightly screwed with the assembly part of the connector according to the torque of 1.2N.m, and the connector at the end of the cable and the cable are kept from rotating;
s8) assembling the finished product: after the cable and connector are assembled, the correct size and clean surface are checked and guaranteed, the connector in the cable assembly qualified by the check is covered with a proper protective cover, and the cable is put into a packaging bag filled with inert gas and put into a special container for storage.
The processing and assembling process of the connector is optimized, the assembling process is standard, the production and assembling cost of the radio frequency coaxial connector is reduced, the production flow is simplified, the consistency and the stability of products are ensured, effective and strict process control and quality acceptance control are realized in each link, each process is standard and reasonable, the influence factors of each link during assembly and machining are fully considered, the influence factors can be reasonably avoided, the reliability of the radio frequency coaxial cable connector and the radio frequency coaxial cable connector assembly is improved, and the quality of the products is ensured.
The invention has the advantages that: the processing and assembling process of the connector is optimized, the assembling process is standard, the production and assembling cost of the radio frequency coaxial connector is reduced, the production flow is simplified, the consistency and the stability of products are ensured, effective and strict process control and quality acceptance control are realized in each link, each process is standard and reasonable, the influence factors of each link during assembly and machining are fully considered, the influence factors can be reasonably avoided, the reliability of the radio frequency coaxial cable connector and the radio frequency coaxial cable connector assembly is improved, and the quality of the products is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A processing and assembling process for a radio frequency coaxial cable connector is characterized by comprising the following steps:
s1) cable inspection, super-long cutting and preheating treatment: inspecting coaxiality, distortion, ring veins, cracks, sand holes and pollution of an inner conductor and an outer conductor of the assembled cable, cutting the qualified cable in a proper superlong way according to the required length, placing the cut cable in an environment with the temperature of minus 45 ℃ to minus 35 ℃ for 1-2 hours, then placing the cable in a room temperature environment for 1-2 hours, then placing the cable in a thermal circulation device, heating the cable to the highest temperature of 65 ℃ to 80 ℃ for 1-2 hours, placing the cable in the room temperature for 1-2 hours, cutting the axis of the cable and the edge of the outer conductor flat, repeating the complete thermal circulation for 3-5 times, and placing the cable in the room temperature for a certain time after the final thermal circulation is finished;
s2) cable final length cut, end stripped and inspected: after preheating, cutting the cable according to a specified length, stripping the end of the cable by adopting a special tool, removing burrs, and then carrying out treatment and inspection on the stripped end to ensure that the outer conductor has no surface defects, the outer conductor is level to the insulating medium, and the inner conductor is not damaged;
s3) removing gold layers and pre-tinning of cables and connectors: melting a section of solder to a certain temperature by an electric soldering iron at a central contact of a cable inner conductor, melting a gold layer by the solder, sucking the solder by a tin sucking rope, fixing a connector on a polytetrafluoroethylene socket with a proper size and a fixing part, melting the solder to the surface of a welding part of the connector after melting the solder to the certain temperature, sucking by a tin sucking device, and repeating the steps until the surface of the pre-tinned part is glossy;
s4) cable insertion into connector and check: the cable penetrates through a captive connecting nut, a processed cable end is inserted into a connector by means of a proper tool, the outer conductor and a PTFE (polytetrafluoroethylene) insulating medium of the cable are enabled to be flush with the inner wall of a cavity of the connector, the inner conductor is completely inserted into a forked groove at the tail end of a central contact in the connector, a certain included angle relation between the formed cable and the connector is guaranteed, and the formed cable and the connector are inspected through an inspection hole or an assembly hole;
s5) inner conductor and connector welding, cleaning and inspection: firstly, welding the cable inner conductor and a central contact in the connector by using a proper electric soldering iron and specified welding flux, immediately cleaning the welding position of the central conductor and a cavity in the connector by using a solvent until no residual welding flux or other visible pollution exists, and checking the welding position to ensure that the inner conductor is completely inserted into an end forked groove of the central contact of the connector;
s6) welding and cleaning of the outer conductor and the connector: welding the outer conductor of the cable to the connector, and thoroughly cleaning the connector by using a solvent after welding;
s7) capping and washing: after welding and cleaning, the cover is assembled on the inspection hole or the assembly hole of the connector, the cover is completely inserted into the inspection hole or the assembly hole and is welded by the solder left by removing a gold layer or pre-tinning, a welding area extends to the periphery of the whole cover to prevent the redundant solder from flowing into the cavity of the connector to form redundant substances, after welding is completed, the cover is thoroughly cleaned by a solvent, the internal thread of the captive connecting nut is tightly connected with the assembly part of the connector according to certain torque, and the connector at the end of the cable and the cable are kept not to rotate;
s8) assembling the finished product: after the cable and connector are assembled, the correct size and clean surface are checked and guaranteed, the connector in the cable assembly qualified by the check is covered with a proper protective cover, and the cable is put into a packaging bag filled with inert gas and put into a special container for storage.
2. The machining and assembling process of the radio frequency coaxial cable connector according to claim 1, wherein: the solder is one of HLSn63PbA (B) and HLSn63PbAgA (B) in a strip shape or a wire shape.
3. The machining and assembling process of the radio frequency coaxial cable connector according to claim 1, wherein: the solvent is one of ethanol with the purity of 98.5%, isopropanol with the purity of 99% and trichlorotrifluoroethane with the purity of 98.8%.
4. The machining and assembling process of the radio frequency coaxial cable connector according to claim 1, wherein: the temperature of the gold layer removing and the pre-tinning of the cable and the connector is 220-280 ℃.
5. The machining and assembling process of the radio frequency coaxial cable connector according to claim 1, wherein: the cable is placed in a thermal cycle device when being preheated.
6. The machining and assembling process of the radio frequency coaxial cable connector according to claim 1, wherein: the moment when the mooring connecting nut is connected with the connector assembly is 0.7N.m-1.2 N.m.
7. The machining and assembling process of the radio frequency coaxial cable connector according to claim 1, wherein: the temperature change rate of the cable preheating treatment is not higher than 2 ℃/min.
8. The machining and assembling process of the radio frequency coaxial cable connector according to claim 1, wherein: and putting the cable into room temperature for 1-2 days after the final thermal cycle is finished.
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| CN112908566A (en) * | 2021-01-22 | 2021-06-04 | 苏州泰斯科通信科技有限公司 | Automatic processing production line for radio frequency cable assembly |
| CN113612092A (en) * | 2021-07-22 | 2021-11-05 | 四川宇飞连接电子有限公司 | Production process of 5-core deepwater tensile connector |
| CN118431868B (en) * | 2024-07-04 | 2024-09-24 | 嘉兴翼波电子有限公司 | NMD adapter and manufacturing method thereof |
| CN118523149B (en) * | 2024-07-23 | 2024-11-12 | 成都派奥科技有限公司 | A manufacturing process for a 6G radio frequency phase-stable cable assembly |
| CN118920223B (en) * | 2024-10-10 | 2024-12-10 | 嘉兴翼波电子有限公司 | Novel millimeter wave connector supported by insulating structure and assembling method thereof |
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