CN111790877B - A processing device for rivet connection of shock absorber - Google Patents
A processing device for rivet connection of shock absorber Download PDFInfo
- Publication number
- CN111790877B CN111790877B CN202010743370.XA CN202010743370A CN111790877B CN 111790877 B CN111790877 B CN 111790877B CN 202010743370 A CN202010743370 A CN 202010743370A CN 111790877 B CN111790877 B CN 111790877B
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- positioning
- mold
- shock absorber
- riveting
- die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/14—Riveting machines specially adapted for riveting specific articles, e.g. brake lining machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
- B21J15/42—Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
本发明提供了一种应用于减振器铆钉连接的加工装置。该装置包括固定支承底座、用于承接压铆作用的模具、设于模具一端用于对模具进行径向定位的第一定位组件和设于模具另一端用于对模具进行的轴向定位的第二定位组件；模具的一端设置有复数个径向定位件，另一端设置有轴向定位槽，第一定位组件的作用端具有复数个与所述径向定位件数量相等的径向定位对应件；第二定位组件的作用端设有与径向定位槽对应设置的顶压头。本发明在轴向定位装置和径向定位装置的压力作用下会径向膨胀从而贴合减振器的贮油筒内壁，实现对弯曲面的铆接。此外，所用模具包含多种型号，可以适用于不同元件的铆接需求。
The present invention provides a processing device for rivet connection of shock absorber. The device includes a fixed supporting base, a mold for receiving riveting action, a first positioning assembly provided at one end of the mold for radial positioning of the mold, and a second positioning assembly provided at the other end of the mold for axial positioning of the mold; one end of the mold is provided with a plurality of radial positioning members, and the other end is provided with an axial positioning groove, and the active end of the first positioning assembly has a plurality of radial positioning corresponding members equal to the number of the radial positioning members; the active end of the second positioning assembly is provided with a top pressure head provided corresponding to the radial positioning groove. Under the pressure of the axial positioning device and the radial positioning device, the present invention will expand radially so as to fit the inner wall of the oil storage cylinder of the shock absorber, thereby realizing the riveting of the curved surface. In addition, the molds used include a variety of models, which can be suitable for the riveting requirements of different components.
Description
Technical Field
The invention relates to a processing device applied to rivet connection of shock absorbers, and belongs to the technical field of riveting.
Background
The damper is a damping device, can be used for relieving impact, is widely applied in the field of automobiles, and is greatly helpful for improving the driving smoothness of automobiles. With the rapid development of the whole automobile industry, the automobile spare and accessory part industry is synchronously developed, meanwhile, the market competition of the vibration damper industry is more vigorous, higher requirements are put on the vibration damper, the vibration damper is required to have higher strength, durability and sealing performance, and meanwhile, the vibration damper manufacturing is increasingly important to environmental protection and personal safety.
The components of the shock absorber of the automobile include spring plates, stabilizer bar brackets, U-shaped brackets, positioning brackets and the like, which are required to be fixed to the oil reservoir of the shock absorber. The current common mode is welding, wherein after the element is attached to the oil storage cylinder, the element and the oil storage cylinder are jointed together by using a welding rod at the joint. Although this welding method is fast, it has various drawbacks in terms of safety and quality. On one hand, safety accidents such as ignition, explosion, burning and scalding, acute poisoning and the like can occur in the operation process of the welding process, and harmful factors such as arc light, electric welding smoke dust, toxic gas, high-frequency electromagnetic radiation and the like to human bodies are generated to cause environmental pollution and human health hazard.
The riveting is a method for connecting two or more workpieces through rivets, the operation process needs the participation of a die and the rivets, the workpieces to be riveted are usually fixed on the die, and then the rivets are nailed from the upper part, so that after the rivets pierce the workpieces, the rivets deform to be matched with grooves of the die, and the connection and the fixation of the workpieces are realized. The riveting method can realize the connection between the elements of the shock absorber and the oil storage cylinder without welding and spraying, improves the appearance quality, is harmless to the environment in the whole manufacturing process, and ensures the personal safety and health of operators. However, this method requires the cooperation of a die, and the object to be riveted is usually a flat plate element which is easy to operate, and the conventional flat plate die cannot meet the requirement for the elements such as the automobile shock absorber which need to be connected on the cylindrical oil storage cylinder. And the number of riveting points of different riveting parts is different, so that the positions of the dies need to be frequently replaced by riveting each time by using a conventional method, and the operation process is complex.
Disclosure of Invention
The invention provides a processing device applied to rivet connection of a shock absorber in order to solve the problems. The invention adopts the expandable die, and is matched with the radial positioning rod and the axial positioning rod to realize the fitting of the die to the cylinder wall, thereby completing the riveting of the bending surface.
Specifically, the technical scheme of the invention is as follows:
The riveting device applied to the automobile shock absorber comprises a fixed supporting base, a die for bearing a press riveting effect, a first positioning assembly arranged at one end of the die and used for radially positioning the die, and a second positioning assembly arranged at the other end of the die and used for axially positioning the die, wherein a plurality of radial positioning pieces are arranged at one end of the die, axial positioning grooves are formed in the other end of the die, a plurality of radial positioning corresponding pieces with the same number as the radial positioning pieces are arranged at the acting end of the first positioning assembly, and a pressing head which is arranged at the acting end of the second positioning assembly and corresponds to the axial positioning grooves is arranged at the acting end of the second positioning assembly.
In the above description, the active end refers to the end of the first positioning component and the second positioning component that directly contact with the mold in the working state.
The mold is a columnar mold formed by combining a plurality of fan-shaped mold pieces, the top pressing head is provided with a male guide inclined plane, the axial positioning groove is provided with a female guide inclined plane, and the male guide inclined plane is matched with the female guide inclined plane.
Preferably, the non-acting ends of the first positioning component and the second positioning component are provided with positioning grooves for pressing by a hydraulic machine.
Preferably, each of the fan-shaped mold pieces is provided with the radial positioning member.
Preferably, the number of the fan-shaped mold pieces is 4, 6 or 8.
Preferably, the second positioning unit is provided with a columnar guide portion for fitting with an inner wall of the oil container to be riveted.
Preferably, the outer diameter of the die is smaller than the inner diameter of the oil reservoir tube to be riveted, so that the plurality of fan-shaped die pieces can expand radially after receiving the axial action of the ram.
Preferably, the second positioning assembly is provided with a columnar guide portion for matching with the inner wall of the oil storage cylinder as the riveting object, and the columnar guide portion is larger than the outer diameter of the die.
Preferably, the mold is provided with a through hole in an inner axial direction.
Preferably, the middle part of the acting end of the first positioning component forms a hollow area.
Preferably, the shape of the empty space is cylindrical.
The following beneficial effects can be obtained by applying the technical scheme of the invention:
(1) The die is provided with a radial locating piece at one end, which corresponds to the acting end of the first locating component, the die and the first locating component can play a radial fixing role on the die after being combined by the radial locating piece, so that the components cannot rotate radially, the other end of the die is provided with a female guiding inclined plane, which corresponds to the male guiding inclined plane of the second locating component, the die and the second locating component can play an axial fixing role on the die after being combined by the female guiding inclined plane and the male guiding inclined plane, so that the die cannot slide axially, and the die can enter a fixing state after being located to a designated riveting place through the combined use of the two locating components, and cannot shift in position in the riveting process.
(2) The die used in the invention consists of a plurality of fan-shaped die pieces, each die piece is provided with a radial positioning component, and after the female guide inclined plane of the die is axially extruded by the male guide inclined plane, the die pieces can be subjected to radial force, so that the die pieces are respectively expanded and dispersed along the radial direction and are attached to the inner wall of the oil storage cylinder, the positioning of the die and the riveting point is realized, and the riveting of the bending surface is realized.
(3) The invention provides three dies comprising 4, 6 and 8 die pieces, and due to the different numbers of sites to be riveted of different riveting elements, the corresponding dies can play a role in avoiding the operations of die replacement, repositioning and the like in the riveting process, so that the riveting time is greatly shortened, the errors caused by repositioning the dies are reduced, and the riveting quality is improved.
(4) According to the invention, the non-working ends of the first positioning component and the second positioning component are provided with the two positioning grooves, the hydraulic press can stabilize the stress direction according to the positioning grooves when pressing the positioning components, so that the tool damage in the pressing process caused by the deviation of force is avoided.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic view of a second positioning assembly according to the present invention;
FIG. 3 is a top view of the mold of the present invention;
FIG. 4 is an end view of the mold of the present invention;
FIG. 5 is a cross-sectional view of the mold of the present invention;
FIG. 6 is a schematic view of a first positioning assembly of the present invention;
FIG. 7 is an end view of the first positioning assembly of the present invention;
In the figure, a 1-fixed supporting base, a 2-die, a 3-first positioning component, a 4-second positioning component and a 5-positioning groove, a 21-radial positioning piece, a 22-axial positioning groove, a 23-through hole, a 31-radial positioning corresponding piece, a 32-empty area, a 41-jacking head and a 42-columnar guide part are arranged.
Detailed Description
In order to better understand the solution of the present invention, the following description will be made in detail and fully with reference to examples.
As described in the background art, the existing welding process for the automobile damper element has various defects, and the conventional riveting technology is limited by the mold, so that only the flat plate element can be riveted, and the curved surface such as the oil storage cylinder of the damper cannot be processed.
In order to solve the problem, the invention provides a processing device applied to rivet connection of a shock absorber, which comprises a fixed supporting base 1, a die 2 for bearing a press riveting effect, a first positioning component 3 arranged at one end of the die and used for radially positioning the die, and a second positioning component 4 arranged at the other end of the die and used for axially positioning the die, wherein 4 radial positioning pieces 21 are arranged at one end of the die 2, axial positioning grooves 22 are arranged at the other end of the die, radial positioning corresponding pieces 31 with the same number as the radial positioning pieces 21 are arranged at the acting end of the first positioning component 3, and a pressing head 41 which is arranged corresponding to the radial positioning grooves 22 is arranged at the acting end of the second positioning component 4. The die 2 is a columnar die formed by combining 4 fan-shaped die pieces, the top pressing head 41 is provided with a male guiding inclined plane, the axial positioning groove 22 is provided with a female guiding inclined plane, and the male guiding inclined plane is matched with the female guiding inclined plane. The non-active ends of the first positioning assembly 3 and the second positioning assembly 4 are provided with positioning grooves 5. Each of the fan-shaped mold pieces is provided with the radial positioning member 21. The second positioning unit 4 is provided with a columnar guide 42 for engaging with the inner wall of the oil container to be riveted. The outer diameter of the die 2 is smaller than the inner diameter of the oil reservoir as the caulking subject, so that 4 of the fan-shaped die pieces can be radially expanded after receiving the axial action of the pressing head 41. The second positioning assembly 4 is provided with a columnar guide part 42 for matching with the inner wall of the oil storage cylinder as a riveting object, and the columnar guide part 42 is larger than the outer diameter of the die 2. The inside of the die 2 is axially provided with a through hole 23. The middle part of the active end of the first positioning component 3 forms a free area 32.
In addition, the invention also provides a concrete operation method of the processing device applied to the rivet connection of the shock absorber, which comprises the following steps:
(1) And (3) positioning the element and the die, namely positioning the element to be riveted, the die, the blank holder and the punch of the riveting press to the riveting position after the oil storage cylinder is placed on the fixed supporting base.
(2) And (3) fixing and expanding and attaching the mould, namely applying pressure to the non-acting ends of the first positioning assembly and the second positioning assembly by using a hydraulic press, so that the fan-shaped mould sheets of the mould expand along the radial direction and are tightly attached to the inner wall of the oil storage cylinder.
(3) And (3) implementing the riveting process, namely placing rivets into the blank holder, and completing riveting by using a punch.
(4) And (3) after the die is withdrawn, withdrawing the punch, taking down the blank holder, removing the pressure of the hydraulic press, and withdrawing the second clamping device and the first clamping device from the oil storage cylinder pipeline.
The specific methods of use of the invention are further described by way of examples below:
Example 1
Riveting a hose support:
(1) Placing two support bases, wherein one base is placed under a punch of a riveting press, the other base is converged by 200mm, the two bases are mechanically fixed, an oil storage cylinder is horizontally placed on the support base, the axial position is adjusted, a position to be riveted is placed under the punch of the riveting press, a die comprising 4 fan-shaped die pieces is placed in a pipeline of the oil storage cylinder, the die is axially positioned to the position to be riveted by using a first positioning component, a die set is rotated by using the first positioning component, a die groove of the die set is aligned to the position to be riveted, a hose support and a blank holder for placing rivets are positioned to the position to be riveted, and the punch of the riveting press is aligned to the blank holder.
(2) The second locating component is inserted from the other side of the oil storage tube, after the female guiding inclined plane of the mould is jointed with the male guiding inclined plane of the second locating component, a hydraulic device is used for pressing inwards through the locating grooves of the non-acting ends of the first locating component and the second locating component, so that all sector-shaped dies of the mould expand and move along the radial direction, and finally are tightly attached to the inner wall of the oil storage tube.
(3) And placing the rivet into the blank holder, and pressing the rivet by using a punch head to pierce the part to be riveted and the oil storage cylinder and deform so as to realize the connecting function. After the riveting operation is finished, the punch of the riveting press is retracted, the blank holder is taken down, the hydraulic device is closed, the second positioning component axially withdraws from the pipeline, the die radially contracts, and then the die and the first positioning component are withdrawn from the pipeline together, so that the riveting operation is finished.
Example 2
Riveting of spring disc:
(1) Placing three supporting bases, horizontally placing an oil storage cylinder on the bases, adjusting the positions of the bases to enable one base to be located in the center of the cylinder, enabling the other two bases to be located at positions 30mm away from two ends of the cylinder respectively, mechanically fixing the bases, sleeving a spring disc on the oil storage cylinder, adjusting the positions of the spring disc to enable positions to be riveted of the spring disc to be aligned with punches, placing a die containing 8 dies into the oil storage cylinder, axially positioning the die to the positions to be riveted by using a first positioning component, rotating the die to enable a die groove to be aligned with the positions to be riveted, positioning the spring disc and a blank holder for placing rivets to the positions to be riveted, and positioning the punches of a riveting press to be aligned with the blank holder.
(2) The second positioning device is inserted from the other side of the oil storage tube pipeline, after the female guiding inclined plane of the die is jointed with the male guiding inclined plane of the second positioning component, a hydraulic device is used for pressing inwards through the positioning grooves of the non-acting ends of the first positioning component and the second positioning component, so that all sector-shaped dies of the die move along radial expansion, and finally are tightly attached to the inner wall of the oil storage tube.
(3) And placing the rivet into the blank holder, pressing the rivet by using a punch head to pierce the part to be riveted and the oil storage cylinder, deforming to realize connection, and after the connection is finished, retracting the punch head of the riveting press, and taking down the blank holder to finish riveting one part.
(4) And (3) reducing the pressure of a hydraulic device, rotating an oil storage cylinder and a positioning device, enabling the position to be riveted at the second position of the spring disc to be aligned with the punch, raising the pressure of the hydraulic press, completely fixing the device, positioning the blank holder, adjusting the punch to be aligned with the blank holder, placing rivets, and operating in the step (3) to rivet.
(5) Repeating the operation in the step (4) for a plurality of times until all the parts to be riveted are riveted, then closing the hydraulic device, axially withdrawing the second positioning assembly from the pipeline to enable the die to radially shrink, and then withdrawing the die and the first positioning device from the pipeline together to complete the riveting operation.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743370.XA CN111790877B (en) | 2020-07-29 | 2020-07-29 | A processing device for rivet connection of shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743370.XA CN111790877B (en) | 2020-07-29 | 2020-07-29 | A processing device for rivet connection of shock absorber |
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| Publication Number | Publication Date |
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| CN111790877A CN111790877A (en) | 2020-10-20 |
| CN111790877B true CN111790877B (en) | 2025-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010743370.XA Active CN111790877B (en) | 2020-07-29 | 2020-07-29 | A processing device for rivet connection of shock absorber |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113602408B (en) * | 2021-09-15 | 2022-11-01 | 常州开发减震器有限公司 | Front fork tube for shock absorber and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844196A (en) * | 2010-05-26 | 2010-09-29 | 苏州铭峰精密机械有限公司 | Internally riveting clamp |
| CN212917497U (en) * | 2020-07-29 | 2021-04-09 | 浙江路得坦摩汽车部件股份有限公司 | Be applied to processingequipment of shock absorber rivet connection |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6988651B2 (en) * | 2004-02-17 | 2006-01-24 | General Motors Corporation | Friction stir rivet drive system and stir riveting methods |
| CN107127287A (en) * | 2016-02-26 | 2017-09-05 | 富泰华工业（深圳）有限公司 | A kind of rivet driver and clinching method |
| DE102016006097A1 (en) * | 2016-05-20 | 2017-11-23 | Wolf Produktionssysteme GmbH & Co. KG | Device for producing the head of a Kunststoffniet and method for this |
| CN205926853U (en) * | 2016-05-31 | 2017-02-08 | 江苏金也汽车配件有限公司 | Device is riveted to radial pressure of car steering column bearing |
| CN106112543B (en) * | 2016-07-19 | 2018-04-10 | 上海交通大学 | Rivet and its self-piercing frictional rivet welding for self-piercing frictional rivet welding connect system |
| CN106976044B (en) * | 2017-03-02 | 2023-04-25 | 杭州联伟科技有限公司 | Riveting tool accessory and riveting tool |
| CN208696217U (en) * | 2018-07-24 | 2019-04-05 | 内蒙古第一机械集团股份有限公司 | A kind of riveting clamp of disk brake |
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2020
- 2020-07-29 CN CN202010743370.XA patent/CN111790877B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844196A (en) * | 2010-05-26 | 2010-09-29 | 苏州铭峰精密机械有限公司 | Internally riveting clamp |
| CN212917497U (en) * | 2020-07-29 | 2021-04-09 | 浙江路得坦摩汽车部件股份有限公司 | Be applied to processingequipment of shock absorber rivet connection |
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