CN107116366B - For the multipurpose tool of composite processing, ancillary equipment and application method - Google Patents

Abstract

It is disclosed by the invention for the multipurpose tool of composite processing, ancillary equipment and application method, belong to machining, technical field of material modification.A kind of multipurpose tool for composite processing disclosed by the invention, including knife bar, cutter hub, stirring-head, locating piece, blade and screw.Invention additionally discloses a kind of ancillary equipments that the multipurpose tool for composite processing uses and a kind of application method of the multipurpose tool for composite processing.The problem to be solved in the present invention are as follows: (1) realize the processing of composite material multipurpose according to the needs of use, the multipurpose processing includes following purposes: single mixing yoghurt；Single Milling Process；Single Friction Stir Welding；Mixing yoghurt with deflashing function；Mixing yoghurt-milling Compound Machining；Agitating friction connection-milling Compound Machining.(2) composite processing quality and processing efficiency are improved, and improves the surface layer mechanical property and fatigue behaviour of process component.

Description

For the multipurpose tool of composite processing, ancillary equipment and application method

Technical field

The present invention relates to a kind of for the multipurpose tool of composite processing, ancillary equipment and application method, belongs to machine Tool processing, technical field of material modification.

Background technique

The rapid development of new material science and technology, especially advanced science technology are advanced by leaps and bounds, and are got over to material property proposition Carry out higher requirement.Meanwhile some there are many excellent mechanical properties and physical property difficult-to-machine material (especially composite wood Material) appearance, machining technique is constantly put forward new requirements.It is serious to tool wear when it is mainly manifested in processing, plus Work is at high cost, leads to that processing efficiency is low and machined surface quality is poor, in addition, in some advanced novel difficult-to-machine materials of milling In the process, residual since the removal of Milling Force, milling heat and material couples to form new residual stress distribution with surface residual stress The presence of residue stress changes the geometric dimension of part, and then causes part severely deformed, and after milling surface layer mechanical property There is a degree of decline, carry out influence end product quality, above-mentioned series of factors, which becomes, hinders have excellent performance New material is widely applied and restricts one of bottleneck and problem of crucial high performance structural member manufacture.Since the surface of components part is thick The requirement of rugosity, dimensional accuracy, surface mechanical properties etc., it is necessary to take it certain machining.Expand new material Application range, it is necessary to reduce its difficulty of processing as far as possible.Therefore, the efficient and high quality processing of difficult-to-machine material is still close One of most important research topic in several years manufacturing technologies.

Mixing yoghurt itself is a kind of very typical efficient, energy saving, free of contamination advanced machining technology, by stirring The strong stirring action for mixing head makes machined material that severe plastic deformation occur, mixing, be crushed, and realizes the densification of microstructure Change, homogenize and refines.Mixing yoghurt mutually enhances in microstructure of metals refinement, superplastic material preparation and nanometer Metal-base composites etc. achieves application.Mixing yoghurt is not only in that be provided for metal and alloy materials Strengthening and Toughening New method, and in metal and alloy surface can prepare gradient-structure layer (scale Gradient or tissue gradient).Meanwhile it utilizing The processing of mixing yoghurt technology prepares composite material in alloy surface, so that reinforced alloys surface, makes the mechanical property on surface layer It is significantly improved with polishing machine.

Combined Machining Technology just increasingly by the attention of modern manufacturing industry, has become the one of the following processing and manufacturing industry A important development direction.Mixing yoghurt-milling integral type processing is a kind of way of realization of Combined Machining Technology, is to mill The machining tool that knife and stirring-head combine mode completes all kinds of surfaces using mixing yoghurt and milling resultant motion Processing realizes that the cutting of revolving body parts part and the stirring of stirring-head squeeze to realize surface strengthening by the rotation of milling cutter A kind of advanced green processing technologies.Clearly refer in " National Program for Medium-to Long-term Scientific and Technological Development (2006-2020) " Out, for manufacturing process resource, energy consumption is big the problems such as, primary study develop green manufacture technology.Therefore, agitating friction Processing-milling integral type processing technology is also a kind of way of realization of Combined Machining Technology, and this method combines milling cutter and stirs The advantage of head respectively is mixed, surface processing is completed using the resultant motion of milling cutter and stirring-head.Milling and mixing yoghurt skill The complex machining process that art combines has low cost, short-period Compound Machining new technology, realizes difficult-to-machine material height The processing of effect, high quality.

Summary of the invention

The present invention discloses a kind of multipurpose tool for composite processing, and open a kind of for composite processing The ancillary equipment that uses of multipurpose tool, a kind of also disclosed user of the multipurpose tool for composite processing Method, the technical problem to be solved in the present invention are as follows: (1) realize the processing of composite material multipurpose according to the needs of use, described is multi-purpose Way processing includes following purposes: single mixing yoghurt；Single Milling Process；Single Friction Stir Welding；With deflashing The mixing yoghurt of function；Mixing yoghurt-milling Compound Machining；Agitating friction connection-milling Compound Machining. (2) composite processing quality and processing efficiency are improved, and improves the surface layer mechanical property and fatigue behaviour of process component.

The purpose of the present invention is what is be achieved through the following technical solutions.

A kind of multipurpose tool for composite processing disclosed by the invention, including it is knife bar, cutter hub, stirring-head, fixed Position block, blade and screw, cutter hub select end mill(ing) cutter or cylindrical milling cutter according to need of work.Cutter hub one end and stirring-head big end are whole Body connection, stirring-head large end face diameter are the 2/5~3/5 of cutter hub diameter, and stirring-head big end is embedded on cutter hub inner hole.Locating piece Be fixed by screws in the cutter groove of cutter hub, blade is fixed on the positioning block, blade shapes and position on locating piece according to Processing needs to adjust.

To reduce feeding resistance and cutting force, the preferred taper stirring-head of the stirring-head.

Invention additionally discloses a kind of ancillary equipments that the multipurpose tool for composite processing uses, including knife handle system System and axis system.The knife handle system includes vibration-damping flange disk, oil pocket, knife handle admission line, knife handle inner cold system, limit Device, dynamic poise device, knife bar accommodate device.Increase on the knife handle of existing knife handle system dynamic flat for realizing multipurpose tool The annular convex platform of weighing apparatus is realized by adjusting position and quantity counterweight in annular convex platform screwing to the dynamic flat of multipurpose tool Weighing apparatus setting.And increasing vibration-damping flange disk in existing knife handle system, vibration-damping flange disk covers on the outside of the cylindrical body below knife handle boss. The axis system includes temperature measuring equipment, main shaft cooling bath, vibration detecting device, main shaft cooling device, air spider, air inlet pipe. Multipurpose tool carries out geometry by the knife bar clamping device in knife handle system and fixes, and using knife handle admission line to realize work The pneumatic fastening of tool and knife handle.

The application method of a kind of multipurpose tool for composite processing disclosed by the invention are as follows: multipurpose tool is logical The knife bar clamping device crossed in knife handle system carries out geometry and fixes, and using knife handle admission line with the gas of implementation tool and knife handle Dynamic fastening.

Corresponding multipurpose tool is installed in selection according to the needs of use, realizes and the multipurpose of composite material is processed.

When realizing single mixing yoghurt, the removal of inserts from locating piece is realized by axis system to multipurpose The driving of rotation and the feed motion of tool, to realize single mixing yoghurt.

When realizing single Friction Stir Welding, the removal of inserts from locating piece is realized by axis system to multipurpose The driving of rotation and the feed motion of tool, to realize single Friction Stir Welding.

When realizing the mixing yoghurt with deflashing function, position or adjustment knife of the blade on locating piece are adjusted Plate shape keeps blade cut sword concordant with cutter hub end, realizes that rotation and feeding to multipurpose tool are transported by axis system Dynamic driving, so that realizing has the mixing yoghurt of deflashing function.

When realizing the Friction Stir Welding with deflashing function, position or adjustment blade of the adjustment blade in locating piece Shape keeps blade concordant with cutter hub end, and the driving of rotation and the feed motion to multipurpose tool is realized by axis system, To realize the Friction Stir Welding with deflashing function.

When realizing single Milling Process, position or adjustment blade shapes of the adjustment blade in locating piece make blade cut Sword is more than cutter hub end, while dismantling stirring-head, realizes rotation to multipurpose tool and feed motion by axis system Driving, to realize single Milling Process.

When realizing mixing yoghurt-milling Compound Machining, position or adjustment blade of the adjustment blade in locating piece Shape, making blade cut sword is more than cutter hub end, while loading stirring-head, realizes the rotation to multipurpose tool by axis system Turn the driving with feed motion, to realize the compound integral type processing of mixing yoghurt-milling, improves adding for composite material Working medium amount and processing efficiency.In composite material milling process, the addition in alloy substrate due to reinforced phase makes the plasticity of matrix Deformation mechanism and the milling cutting mechanisms of single alloy material have larger difference, since composite material work piece skin-material is by stirring Mix friction secondary operation play refinement matrix microstructure and enhancing phase size, thus improve composite layer mechanical property and Fatigue behaviour.The respective technical advantage of the milling of mixing yoghurt-milling Compound Machining set and mixing yoghurt, utilizes Mixing yoghurt can improve milling composite processing surface quality and surface layer mechanical property, while Milling Process can remove and stir Mix friction process caused by overlap the problems such as, and part heat can be provided for mixing yoghurt defeated for heat caused by cutting Enter.Meanwhile the compound realization workpiece integral type rapid processing of mixing yoghurt-milling, improve the processing quality of composite material With processing efficiency and save production cost.

When realizing Friction Stir Welding-milling Compound Machining, position or adjustment blade of the adjustment blade in locating piece Shape, making blade cut sword is more than cutter hub end, while loading stirring-head, realizes the rotation to multipurpose tool by axis system Turn the driving with feed motion, to realize the compound integral type processing of Friction Stir Welding-milling, improves adding for composite material Working medium amount and processing efficiency.In composite material milling process, the addition in alloy substrate due to reinforced phase makes the plasticity of matrix Deformation mechanism and the milling cutting mechanisms of single alloy material have larger difference, since composite material work piece skin-material is by stirring Mix friction secondary welding play refinement matrix microstructure and enhancing phase size, thus improve composite layer mechanical property and Fatigue behaviour.The respective technical advantage of the milling of Friction Stir Welding-milling Compound Machining set and Friction Stir Welding, utilizes Friction Stir Welding can improve milling composite processing surface quality and surface layer mechanical property, while Milling Process can remove and stir Mix friction process caused by overlap the problems such as, and part heat can be provided for Friction Stir Welding defeated for heat caused by cutting Enter.Meanwhile Friction Stir Welding-milling is compound realizes workpiece integral type rapid processing, improves the processing matter of composite material Amount and processing efficiency simultaneously save production cost.

Small imbalance since the rotary rpm of axis system in above-mentioned multipurpose processing method is high, on multipurpose tool Amount can generate very big centrifugal force, and centrifugal force causes the circular runout of multipurpose tool, reduce the machining accuracy to workpiece, by The dynamically balanced annular convex platform of multipurpose tool is realized in being machined on knife handle, by adjusting in the position of annular convex platform screwing With quantity counterweight, realizes that the dynamic balancing to multipurpose tool is arranged, reduce the circular runout that centrifugal force causes multipurpose tool, mention Machining accuracy of the height to workpiece.Further, since increasing vibration-damping flange disk in existing knife handle system, damping effect is realized, further Improve the machining accuracy to workpiece.

The utility model has the advantages that

1, disclosed by the invention a kind of for the multipurpose tool of composite processing, ancillary equipment and application method, root It according to using needs to select that corresponding multipurpose tool is installed, realizes and the multipurpose of composite material is processed, multipurpose processing includes Following purposes: single mixing yoghurt；Single Milling Process；Single Friction Stir Welding；Stirring with deflashing function Friction processing；Mixing yoghurt-milling Compound Machining；Agitating friction connection-milling Compound Machining.

2, the rotary rpm of axis system is high in existing processing method, and the small amount of unbalance on multipurpose tool can generate Very big centrifugal force, centrifugal force cause the circular runout of multipurpose tool, reduce the machining accuracy to workpiece.The present invention discloses It is a kind of for the multipurpose tool of composite processing, ancillary equipment and application method, due to being machined with realization on knife handle The dynamically balanced annular convex platform of multipurpose tool is realized by adjusting position and quantity counterweight in annular convex platform screwing to more The dynamic balancing of purposes tool is arranged, and reduces the circular runout that centrifugal force causes multipurpose tool, improves the machining accuracy to workpiece. Further, since increasing vibration-damping flange disk in existing knife handle system, realizes to the damping effect of knife handle, further increase to workpiece Machining accuracy.

3, disclosed by the invention a kind of for the multipurpose tool of composite processing, ancillary equipment and application method, it adjusts Position or adjustment blade shapes of the full blade in locating piece, making blade cut sword is more than cutter hub end, while loading stirring-head, is led to The driving for crossing rotation and feed motion that axis system is realized to multipurpose tool, to realize mixing yoghurt or welding- The compound integral type processing of milling, improves the processing quality and processing efficiency of composite material.In composite material milling process, close Addition in auri body due to reinforced phase makes the Plastic Deformation Mechanism of matrix and the milling cutting mechanisms of single alloy material have compared with Big difference, since composite material work piece skin-material plays refinement matrix microstructure and enhancing by agitating friction secondary welding Phase size, to improve composite layer mechanical property and fatigue behaviour.

Detailed description of the invention

Fig. 1 is the joint machining sketch chart of compound milling-mixing yoghurt；

Fig. 2 is the tool construction of three-dimensional compound milling-mixing yoghurt；

Fig. 3 is the mixing yoghurt with deflashing function/soldering appliance structure, and Fig. 3 a is main view, and Fig. 3 b is to bow View；

Fig. 4 is the tool construction of compound milling-mixing yoghurt, and Fig. 4 a is main view, and Fig. 4 b is top view；

Fig. 5 is the blade structure with different function, and Fig. 5 a is the blade that cutting edge is more than cutter hub end, and Fig. 5 b is cutting The sword blade concordant with cutter hub end；

Fig. 6 is the single milling tool structure dismantled after stirring-head；

Fig. 7 is the signal of single Milling Process；

Fig. 8 is the tool construction for only loading stirring-head

Fig. 9 is single mixing yoghurt schematic diagram.

Wherein: 1-knife bar；2-cutter hubs；3-stirring-heads；4-locating pieces；5-blades；6 screws；7-lock skidding； 8-knife handle systems；8-1-vibration-damping flange disk；8-2-oil pocket；8-3-knife handle admission line；8-4-knife handle inner cold system；8- 5-limiting devices；8-6-dynamic poise device；8-7-knife bar clamping device；9-axis systems；9-1-temperature measuring equipment；9-2— Main shaft cooling bath；9-3-vibration detecting device；9-4-main shaft cooling device；9-5-air spider；9-6-air inlet pipe；10-works Part；24-workpiece part to be processed；The machined part of 25-workpiece.

Specific embodiment

Objects and advantages in order to better illustrate the present invention with reference to the accompanying drawing do further summary of the invention with example Explanation.

Embodiment 1:

The present embodiment disclose a kind of multipurpose tool for composite processing based on the present invention, a kind of is used for composite wood Ancillary equipment, a kind of application method of the multipurpose tool for composite processing that the multipurpose tool of material processing uses, It needs to realize in conjunction with actual processing.

The processing of aluminum-based composite material plate used in building.Material are as follows: 6005 aluminium alloys, blank to be processed are big ruler Very little plate.Due to needing to obtain the preferable aluminum alloy plate materials of surface quality at this time, friction-stir deflashing should be selected The mode of Compound Machining.The carbide-tipped milling cutter of the tool selection tack of Compound Machining tool, stirring-head select the stirring of H13 steel Head, wherein the sword number of milling cutter is four, and sword diameter is 12mm；Mixing needle is cylindrical body on stirring-head, and the big end diameter of bottom is 7mm, top diameter are 4.5mm, and whole height is 4.5mm, and mixing needle is threaded, and screw pitch is 1.3mm.5 shape of blade is adjusted, Keep 5 cutting edge of blade concordant with 2 end of cutter hub, is realized by axis system 9 to the rotation of multipurpose tool and feed motion Driving, to realize there is the mixing yoghurt of deflashing function, such agitating friction deflashing processing method needs will be put down The milling cutter on the right side of in Fig. 3 of head is mounted on the bottom of knife bar, and stirring-head among the above is installed.Machining tool is carried out Dynamic balancing is examined, and using RPCT0642 dynamic balancing machine or other types dynamic balancing machine, it is compound to be that 10000r/min is determined in revolving speed Whether within the scope of G205~G16, machining tool poor for dynamic balance accuracy passes through the dynamic balance accuracy grade of machining tool Balance ring or screw are balanced compensation.Mixing yoghurt mode technique with deflashing function: the Milling Speed of processing For 60m/min, the amount of feeding of per tooth is 0.018mm/z, and shield gas flow rate 8L/min, intermittent feeding distance is 3.5mm. Processing method is as shown in figure 9, can be derived that surface quality is higher and has using the mixing yoghurt with deflashing function There is the aluminium-base composite plate for building of higher mechanical property.

If necessary to obtain certain size requirement and the preferable aluminum alloy plate materials of surface quality, the knife such as Fig. 4 should be selected Lamps structure, using the processing method of compound milling-mixing yoghurt as shown in Figure 1.The tool of Compound Machining tool selects The carbide-tipped milling cutter of tack, stirring-head select H13 steel stirring-head, and wherein the sword number of milling cutter is 4, and sword diameter is 12mm；Stirring-head Upper mixing needle is cylindrical body, and the big end diameter of bottom is 7mm, and top diameter is 4.5mm, and whole height is 4.5mm, is stirred It is threaded to mix needle, screw pitch is 1.3mm.It adjusts 5 shape of blade (such as Fig. 5 a), making 5 cutting edge of blade is more than cutter hub end, same to fashionable dress Stirring-head 3 is carried, the driving of rotation and the feed motion to multipurpose tool is realized by axis system 9, to realize that stirring rubs Wipe the compound integral type processing of processing-milling.Such agitating friction-milling deflashing processing method: the milling speed of Compound Machining Degree is 60m/min, and the amount of feeding of per tooth is 0.018mm/z, shield gas flow rate 8L/min, and intermittent feeding distance is 3.5mm.Processing method is as shown in Figure 1, using the mixing yoghurt-milling deflashing Compound Machining it can be concluded that surface matter Measure higher and aluminium-base composite plate for building with higher mechanical property.The Milling Speed of Compound Machining is 40m/min, per tooth The amount of feeding be 0.01mm/z, shield gas flow rate 8L/min, intermittent feeding distance be 3mm.Processing method such as Fig. 9 institute Show, using the mixing yoghurt-milling Compound Machining it can be concluded that surface quality is higher and with higher mechanical property Aluminium-base composite plate for building.

Above-described specific descriptions have carried out further specifically the purpose of invention, technical scheme and beneficial effects It is bright, it should be understood that the above is only a specific embodiment of the present invention, the protection model being not intended to limit the present invention It encloses, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention Protection scope within.

Claims (3)

1. A multi-purpose tool for composite material processing, characterized in that it comprises a cutter bar (1), a cutter body (2), a stirring head (3), a positioning block (4), a blade (5), a screw ( 6) and auxiliary equipment, the cutter body (2) selects an end milling cutter or a cylindrical milling cutter according to the work needs; one end of the cutter body (2) is integrally connected with the big end of the stirring head (3), and the diameter of the large end face of the stirring head (3) is the diameter of the cutter body (2). The diameter of the body (2) is 2/5 to 3/5, the big end of the stirring head (3) is embedded in the inner hole of the cutter body (2); the positioning block (4) is fixed on the cutter body (2) by the screw (6). In the tool groove, the blade (5) is fixed on the positioning block (4), and the shape of the blade (5) and the position on the positioning block (4) are adjusted according to processing needs; In order to reduce the feeding resistance and cutting force, the stirring head (3) is a conical stirring head; The auxiliary equipment includes a tool handle system (8) and a spindle system (9); the tool handle system (8) includes an oil cavity (8-2), a tool handle air inlet pipe (8-3), a tool handle inner A cooling system (8-4), a limiting device (8-5) and a tool holder clamping device (8-7); a moving tool for realizing a multi-purpose tool is added to the tool handle of the tool handle system (8) A balancing device (8-6), the dynamic balancing device (8-6) is an annular boss structure, and by adjusting the position and number of screws on the annular boss, the dynamic balance setting of the multi-purpose tool is realized; and A vibration damping flange (8-1) is added to the tool holder system (8), and the vibration damping flange (8-1) is sleeved on the outside of the cylinder below the tool holder boss; the spindle system (9) ) includes a temperature measuring device (9-1), a spindle cooling tank (9-2), a vibration measuring device (9-3), a spindle cooling device (9-4), a pneumatic chuck (9-5), an air intake pipe ( 9-6); the multi-purpose tool is geometrically fixed by the tool holder clamping device (8-7) on the tool holder system (8), and utilizes the tool holder air intake duct (8-3) to realize the tool and tool holder system (8) Pneumatic tightening. 2. The using method of multipurpose tool as claimed in claim 1 is characterized in that: Select and install corresponding multi-purpose tools according to the needs of use to realize multi-purpose processing of composite materials; When the single friction stir processing is realized, the blade (5) is removed from the positioning block (4), and the rotation and feeding motion of the multi-purpose tool are driven by the spindle system (9), so as to realize the single friction stir processing; When the single friction stir welding is realized, the blade (5) is removed from the positioning block (4), and the rotation and feeding motion of the multi-purpose tool are driven by the spindle system (9), thereby realizing single friction stir welding; When the friction stir machining with deburring function is realized, adjust the position of the blade (5) on the positioning block (4) or adjust the shape of the blade (5) so that the cutting edge of the blade (5) is flush with the end of the cutter body, The rotation and feeding motion of the multi-purpose tool are driven by the spindle system (9), thereby realizing friction stir machining with deburring function; When realizing the friction stir welding with deburring function, adjust the position of the blade (5) on the positioning block (4) or adjust the shape of the blade (5) so that the blade (5) is flush with the end of the cutter body, and the spindle system (9) Realize the driving of the rotation and feeding motion of the multi-purpose tool, thereby realizing friction stir welding with the function of deburring; When a single milling process is realized, adjust the position of the blade (5) on the positioning block (4) or adjust the shape of the blade (5) so that the cutting edge of the blade (5) exceeds the end of the cutter body, and at the same time remove the mixing head (3), The spindle system (9) realizes the driving of the rotation and feeding motion of the multi-purpose tool, thereby realizing single milling processing; When realizing the compound machining of friction stir machining and milling, adjust the position of the blade (5) on the positioning block (4) or adjust the shape of the blade (5) so that the cutting edge of the blade (5) exceeds the end of the cutter body, and the stirring head is loaded at the same time (3), through the spindle system (9) to realize the driving of the rotation and feeding motion of the multi-purpose tool, so as to realize the integrated processing of friction stir machining and milling, and improve the processing quality and processing efficiency of composite materials; During the milling process, the plastic deformation mechanism of the matrix is quite different from the milling removal mechanism of a single alloy material due to the addition of the reinforcing phase in the alloy matrix. Because the surface material of the composite workpiece is processed by the friction stir secondary processing, the matrix microstructure is refined. and the size of the reinforcing phase; the composite machining of friction stir machining-milling combines milling and friction stir machining. The use of friction stir machining can improve the surface quality and surface mechanical properties of milling composite materials, and milling can remove the fly generated by friction stir machining. edge, and the heat generated by cutting can provide part of the heat input for friction stir machining; at the same time, the combination of friction stir machining and milling realizes integrated rapid machining of workpieces; When realizing the composite machining of friction stir welding and milling, adjust the position of the blade (5) on the positioning block (4) or adjust the shape of the blade (5) so that the cutting edge of the blade (5) exceeds the end of the cutter body, and the stirring head is loaded at the same time (3), through the spindle system (9) to realize the driving of the rotation and feeding motion of the multi-purpose tool, so as to realize the integrated processing of friction stir welding and milling, and improve the processing quality and processing efficiency of composite materials; During the milling process, the plastic deformation mechanism of the matrix is quite different from the milling removal mechanism of a single alloy material due to the addition of the reinforcing phase in the alloy matrix. Because the surface material of the composite workpiece is subjected to secondary friction stir welding, the microstructure of the matrix is refined. and the size of the reinforcing phase, thereby improving the mechanical properties and fatigue properties of the surface layer of the composite material; friction stir welding-milling composite machining Using friction stir welding can improve the surface quality and surface mechanical properties of milling composite materials, and milling can remove friction stir machining. The generated flash and the heat generated by cutting can provide part of the heat input for friction stir welding; at the same time, the combination of friction stir welding and milling realizes the integrated and rapid machining of the workpiece. 3. The method of use according to claim 2, characterized in that: due to the high rotational speed of the spindle system in the above-mentioned multi-purpose machining method, the small unbalanced amount on the multi-purpose tool will generate a very large centrifugal force, and the centrifugal force causes the multi-purpose tool The radial runout reduces the machining accuracy of the workpiece. Since a dynamic balancing device (8-6) for realizing a multi-purpose tool is processed on the tool holder system (8), the dynamic balancing device (8-6) is an annular convex The table structure, by adjusting the position and quantity of the screws on the annular boss, realizes the dynamic balance setting of the multi-purpose tool, reduces the radial runout of the multi-purpose tool caused by centrifugal force, and improves the machining accuracy of the workpiece; A vibration damping flange (8-1) is added to the tool holder system (8) to achieve vibration damping and further improve the machining accuracy of the workpiece.