Anti-loosening fixing structure for 7-axis machining automobile aluminum alloy accessory cutter handle

Abstract

The invention discloses an anti-loosening fixing structure for a seven-axis machining automobile aluminum alloy accessory cutter handle, and relates to the field of automobile accessory machining, the anti-loosening fixing structure comprises a cutter handle body, a second anti-loosening mechanism is mounted at one end of the cutter handle body, a first anti-loosening mechanism is mounted at the other end of the cutter handle body, and a mounting mechanism is mounted at one end of the first anti-loosening mechanism. According to the anti-loosening tool handle, after the tool handle body is preliminarily positioned, a threaded sleeve is rotated, a movable sleeve is driven to move, through cooperation of a guide groove, a sliding groove, a connecting block and a sliding block, a movable rod is made to move, an inserting block is tightly clamped, meanwhile, a second spring is compressed by an abutting piece to provide pre-tightening force, and a double-spring structure provides double anti-loosening guarantees; and when the connecting port is inserted into the connecting sleeve, the first spring pushes the sliding piece and the moving rod to move, so that the inserting block is clamped into the inserting groove to complete preliminary positioning, the threaded sleeve is locked, strengthened and fixed, and relative movement or rotation of the knife handle body and the connecting sleeve is effectively prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile accessory machining, in particular to a 7-axis machining automobile aluminum alloy accessory tool holder anti-loose fixing structure. BACKGROUND

[0002] Automobile aluminum alloy accessory machining refers to the whole process of transforming aluminum alloy raw materials into automobile parts meeting automobile design standards, performance requirements and assembly precision through a series of specialized and systematic mechanical / physical / chemical processes, taking aluminum alloy materials as the machining object. The 7-axis machine is used to machine automobile accessories, wherein the tool holder fixing structure is used to connect the mechanical spindle, tool and other accessory tools.

[0003] A tool holder positioner for a machine tool disclosed in CN118809233A includes a base, a positioning groove formed in the base, a slide seat slidably arranged in the positioning groove along the axial direction of the positioning groove, a driving module for driving the slide seat to slide, and a plurality of clamping petals arranged at intervals around the slide seat. The plurality of clamping petals can be relatively opened or folded in the sliding stroke of the slide seat.

[0004] In the prior art, the tool holder is fixed by relying only on the threaded locking of the tool holder and the connecting part. However, 7-axis machining needs to realize complex motion trajectories of multi-axis linkage. During the machining process, not only multi-directional vibrations along the X, Y and Z axes are generated, but also alternating cutting forces are generated due to high-speed cutting of the tool and the aluminum alloy workpiece, which continuously act on the threaded pair, causing the static friction force between the threaded teeth to gradually decay, resulting in loosening of the threads. At the same time, the pre-tightening force of the threaded locking is prone to decay due to wear and fatigue, resulting in a decrease in the anti-loose effect over time, and further causing the tool holder to move and rotate. SUMMARY

[0005] The present application aims to provide a 7-axis machining automobile aluminum alloy accessory tool holder anti-loose fixing structure to solve the problem that multi-directional vibrations and alternating cutting forces of 7-axis machining easily lead to loosening of the threads, and the pre-tightening force of the threaded locking is prone to decay due to wear and fatigue, resulting in a decrease in the anti-loose effect over time, and further causing the tool holder to move and rotate.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a kind of axle machine processing automobile aluminum alloy accessory tool holder anti-loosening fixed structure, including tool holder body, second anti-loosening mechanism is installed in one end of tool holder body, first anti-loosening mechanism is installed in the other end of tool holder body, one end of first anti-loosening mechanism is installed with installation mechanism, first anti-loosening mechanism includes connecting sleeve and connecting port, one end of connecting port is fixedly connected with one end of tool holder body, the other end of connecting port is arranged in the inside of connecting sleeve, plug-in groove is opened in the outside of connecting port, plug-in block is inserted in the inside of plug-in groove, the outside of connecting sleeve is provided with threaded portion, threaded sleeve is connected in screw thread with threaded portion, one end of threaded sleeve is rotatably connected with moving sleeve, moving sleeve is sleeved in the outside of connecting sleeve, the inside of moving sleeve is opened with guide slot, connecting block is slidably connected in the inside of guide slot, the other end of threaded sleeve is butted with abutting piece, abutting piece is slidably connected in the outside of connecting sleeve, the outside of connecting sleeve is fixedly connected with fixed piece, second spring is installed between fixed piece and abutting piece, second spring is sleeved in the outside of connecting sleeve.

[0007] Preferably, one end of the plug-in block is fixedly connected with a moving rod, and one end of the moving rod is fixedly connected with the connecting block through the connecting sleeve.

[0008] Preferably, the inside of the moving sleeve is opened with a sliding groove, a sliding block is slidably connected in the inside of the sliding groove, and one end of the sliding block is fixedly connected with one end of the connecting block.

[0009] Preferably, the inside of the connecting sleeve is opened with a fixed cavity, a sliding piece is slidably connected in the inside of the fixed cavity, and the sliding piece is fixedly connected with the outside of the moving rod.

[0010] Preferably, the outside of the moving rod is sleeved with a first spring, and the first spring is installed between the sliding piece and the fixed cavity.

[0011] Preferably, the second anti-loosening mechanism includes a nut, the inside of the nut is provided with a threaded area, the threaded area is threadedly connected with the other end of the tool holder body, the other end of the tool holder body is opened with an inclined slot, and a chuck is inserted in the inside of the inclined slot.

[0012] Preferably, the other end of the chuck is inserted in the inside of the inclined slot, a plurality of through grooves are uniformly opened in the chuck along the axial direction, the chuck is divided into elastic petals, and a tool is inserted in the middle of the chuck.

[0013] Preferably, one end of the nut is fixedly connected with a first anti-slip piece, one end of the first anti-slip piece is butted with a second anti-slip piece, the second anti-slip piece is slidably connected in the outside of the tool holder body, a third spring is installed between the tool holder body and the second anti-slip piece, and the third spring is sleeved in the outside of the tool holder body.

[0014] Preferably, one end of the second anti-skid sheet is provided with a clamping groove, and one end of the first anti-skid sheet is fixedly connected with a clamping block which is clamped in the clamping groove.

[0015] Preferably, the mounting mechanism comprises a first mounting seat, a second mounting seat and a connecting seat, one side of the first mounting seat is fixedly connected with one side of the second mounting seat through bolts, one end of the connecting seat is rotatably connected in the second mounting seat, and the other end of the connecting seat is fixedly connected with the connecting sleeve.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1、In the present application, after the tool shank body is preliminarily positioned, the threaded sleeve is rotated to drive the moving sleeve to move, through the cooperation of the guide groove, the sliding groove, the connecting block and the sliding block, the moving rod is moved, the insertion block is tightly clamped, and at the same time, the second spring is compressed by the abutting piece to provide pre-tightening force, the double-spring structure provides double anti-loosening protection, and the anti-loosening reliability is improved.

[0017] 2、In the present application, when the connecting port is inserted into the connecting sleeve, the first spring drives the sliding piece and the moving rod to move, so that the insertion block is clamped into the insertion slot to complete preliminary positioning, the threaded sleeve is locked and fixed, and the relative movement or rotation of the tool shank body and the connecting sleeve is effectively prevented.

[0018] 3、In the present application, the nut is rotated to move along the tool shank body, the collet is pushed into the inclined slot, the elastic petals of the collet are radially contracted to tightly hold the tool under the inclined extrusion, the clamping block is clamped into the clamping groove, the third spring is compressed to generate elastic force to increase friction, and the nut is prevented from loosening, so that the long-term stability of the clamped state is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a first three-dimensional structure schematic view of the present application of a 7-axis machining automobile aluminum alloy accessory tool shank anti-loosening fixing structure; Figure 2 It is a second three-dimensional structure schematic view of the present application of a 7-axis machining automobile aluminum alloy accessory tool shank anti-loosening fixing structure; Figure 3 It is an internal plane structure schematic view of the present application of a 7-axis machining automobile aluminum alloy accessory tool shank anti-loosening fixing structure; Figure 4 It is a Figure 3 partial enlarged structure schematic view of the present application of a 7-axis machining automobile aluminum alloy accessory tool shank anti-loosening fixing structure; Figure 5 It is a first anti-loosening mechanism disassembly structure schematic view of the present application of a 7-axis machining automobile aluminum alloy accessory tool shank anti-loosening fixing structure; Figure 6It is a second anti-loosening mechanism disassembly structure schematic view of the 7-axis machining automobile aluminum alloy accessory tool holder anti-loosening fixing structure of the application; Figure 7 It is a second anti-loosening mechanism partial disassembly structure schematic view of the 7-axis machining automobile aluminum alloy accessory tool holder anti-loosening fixing structure of the application.

[0020] In the figure: 1, tool holder body; 2, tool; 3, first anti-loosening mechanism; 31, connecting sleeve; 32, threaded sleeve; 33, moving sleeve; 34, sliding block; 35, sliding groove; 36, connecting block; 37, first spring; 38, sliding piece; 39, moving rod; 310, plug-in block; 311, fixed cavity; 312, plug-in groove; 313, guide groove; 314, abutting piece; 315, fixed piece; 316, second spring; 317, connecting port; 4, second anti-loosening mechanism; 41, nut; 42, chuck; 43, oblique groove; 44, first anti-slip piece; 45, third spring; 46, second anti-slip piece; 47, clamping block; 48, clamping groove; 5, mounting mechanism; 51, first mounting seat; 52, second mounting seat; 53, connecting seat. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0022] Embodiment one: refer to Figure 1 - Figure 7 As shown: a 7-axis machining automobile aluminum alloy accessory tool holder anti-loosening fixing structure, which is composed of a tool holder body 1, a tool 2, and three functional mechanisms including a first anti-loosening mechanism 3, a second anti-loosening mechanism 4, and a mounting mechanism 5.

[0023] I. The first anti-loosening mechanism 3: realizes the anti-loosening connection of the tool holder body 1 and the connecting sleeve 31.

[0024] Anti-loosening principle: double elastic force offsets loosening trend. When the equipment is vibrated or subjected to external force, the first spring 37 can offset the disengagement trend of the moving rod 39, and the second spring 316 can offset the loosening trend of the threaded sleeve 32. The double elastic force cooperates to inhibit loosening from two dimensions of positioning components and driving components. The sliding fit buffers displacement. The sliding of the sliding piece 38 along the fixed cavity 311 and the sliding of the sliding block 34 along the sliding groove 35 can absorb the slight displacement caused by vibration, avoid connection failure caused by rigid impact, and further improve the anti-loosening reliability.

[0025] II. Second anti-loosening mechanism 4: to achieve the anti-loosening clamping of the tool 2 and the shank body 1.

[0026] Anti-loosening principle: the elastic petals continuously hold the tool 2, the elastic petals of the chuck 42 generate continuous radial elastic force under the extrusion of the inclined slot 43, even if it is vibrated, the elastic force can maintain the holding force of the tool 2, avoiding displacement or falling of the tool 2; the anti-skid piece and the spring limit the loosening of the nut 41, the clamping block 47 and the clamping groove 48 are clamped to directly limit the rotation trend of the nut 41, and the elastic force of the third spring 45 increases the friction force between the first anti-skid piece 44 and the second anti-skid piece 46, further preventing the loosening of the nut 41, indirectly ensuring the stability of the clamping of the tool 2.

[0027] III. Installation mechanism 5: to achieve the adaptive connection of the overall structure and the 7-axis machine tool.

[0028] Adaptive principle: angle adjustment adapts to multi-axis machining, the connecting seat 53 can freely rotate inside the second mounting seat 52, driving the connecting sleeve 31, the shank body 1 and the tool 2 to rotate synchronously, meeting the machining requirements of the 7-axis machine tool; power is stably transmitted, when the 7-axis machine tool operates, the power is transmitted to the connecting seat 53 through the first mounting seat 51 and the second mounting seat 52, and then to the shank body 1 and the tool 2 through the connecting sleeve 31, ensuring the precision of multi-axis linkage machining.

[0029] Example two: refer to Figure 1 - Figure 7The utility model discloses a 7 -axis machining automobile aluminum alloy accessory shank anti -looseness fixed structure, including the shank body 1, the one end of shank body 1 is installed with the second anti -looseness mechanism 4, the other end of shank body 1 is installed with the first anti -looseness mechanism 3, the one end of first anti -looseness mechanism 3 is installed with the installation mechanism 5, and first anti -looseness mechanism 3 includes connecting sleeve 31 and connecting port 317, and one end of connecting port 317 is fixedly connected with the one end of shank body 1, and the other end of connecting port 317 is arranged in the inside of connecting sleeve 31, and the outside of connecting port 317 is provided with the plug -in groove 312, and the inside of plug -in groove 312 is inserted with the plug -in block 310, and the outside of connecting sleeve 31 is provided with the threaded portion, and the threaded portion is threadedly connected with the threaded sleeve 32, and one end of threaded sleeve 32 is rotatably connected with the moving sleeve 33, and moving sleeve 33 is sleeved in the outside of connecting sleeve 31, and the inside of moving sleeve 33 is provided with the guide slot 313, and connecting block 36 is slidably connected in the inside of guide slot 313, and the other end of threaded sleeve 32 is abutted with the abutment piece 314, and the abutment piece 314 is slidably connected in the outside of connecting sleeve 31, and the outside of connecting sleeve 31 is fixedly connected with the fixed piece 315, and second spring 316 is installed between fixed piece 315 and abutment piece 314, and second spring 316 is sleeved in the outside of connecting sleeve 31, and one end of plug -in block 310 is fixedly connected with the moving rod 39, and one end of moving rod 39 passes through connecting sleeve 31 and is fixedly connected with connecting block 36, and the inside of moving sleeve 33 is provided with the sliding slot 35, and sliding slot 35 is slidably connected with the sliding block 34, and one end of sliding block 34 is fixedly connected with one end of connecting block 36, and the inside of connecting sleeve 31 is provided with the fixed cavity 311, and the inside of fixed cavity 311 is slidably connected with the sliding piece 38, and the sliding piece 38 is fixedly connected in the outside of moving rod 39, and the outside of moving rod 39 is sleeved with first spring 37, and first spring 37 is installed between sliding piece 38 and fixed cavity 311.

[0030] In the embodiment, when connecting port 317 is inserted into connecting sleeve 31, the elastic force of first spring 37 pushes sliding piece 38 and moving rod 39, so that plug -in block 310 is inserted into plug -in groove 312, and initial mechanical positioning is realized, threaded sleeve 32 is rotated, and is moved to connecting port 317 along the threaded portion of connecting sleeve 31, moving sleeve 33 is pushed to move synchronously, connecting block 36 and sliding block 34 are moved, and moving rod 39 is pulled, so that plug -in block 310 is more tightly inserted into plug -in groove 312, when vibration or external force is applied, the elastic force of first spring 37 and second spring 316 can offset the loosening trend, the sliding cooperation of sliding piece 38 and sliding block 34 can also buffer displacement, plug -in block 310 is prevented from being separated from plug -in groove 312, the double elastic force offsets the vibration loosening, and the anti -looseness reliability is improved.

[0031] Embodiment three: Figure 3 , Figure 6 and Figure 7As shown, the second anti-loosening mechanism 4 comprises a nut 41, the inner side of the nut 41 is provided with a threaded area, the threaded area is threadedly connected with the other end of the shank body 1, the other end of the shank body 1 is provided with an inclined slot 43, the inner side of the inclined slot 43 is inserted with a chuck 42; the other end of the chuck 42 is inserted in the inner side of the inclined slot 43, the chuck 42 is uniformly provided with a plurality of through grooves along the axial direction, the chuck 42 is divided into elastic petals, the middle part of the chuck 42 is inserted with the tool 2; one end of the nut 41 is fixedly connected with a first anti-slip piece 44, one end of the first anti-slip piece 44 is abutted with a second anti-slip piece 46, the second anti-slip piece 46 is slidingly connected to the outside of the shank body 1, a third spring 45 is installed between the shank body 1 and the second anti-slip piece 46, the third spring 45 is sleeved on the outside of the shank body 1; one end of the second anti-slip piece 46 is provided with a clamping groove 48, one end of the first anti-slip piece 44 is fixedly connected with a clamping block 47, the clamping block 47 is clamped in the inner side of the clamping groove 48.

[0032] In the embodiment, the tool 2 is inserted into the middle part of the chuck 42, the nut 41 is rotated, the nut 41 is moved in the threaded area of the shank body 1, the chuck 42 is pushed to move to the inner side of the inclined slot 43, the elastic petals of the chuck 42 are radially contracted under the extrusion of the inclined slot 43, the tool 2 is tightly clamped, the clamping and fixing of the tool 2 are realized, the nut 41 is moved to drive the first anti-slip piece 44 to move, the clamping block 47 is inserted into the clamping groove 48 of the second anti-slip piece 46, at the same time, the third spring 45 is compressed, the elastic force of the third spring 45 is generated to tightly abut the first anti-slip piece 44 with the second anti-slip piece 46, the friction force is increased, the nut 41 is prevented from loosening, the stability of the clamping of the tool 2 is ensured, under the action of the elastic force of the third spring 45, the clamping block 47 is clamped and matched with the clamping groove 48 to limit the rotation of the nut 41, the elastic petals of the chuck 42 also continuously apply the clamping force to the tool 2, the loosening of the tool 2 is avoided.

[0033] Embodiment four: according to Figure 1 and Figure 2 As shown, the mounting mechanism 5 comprises a first mounting seat 51, a second mounting seat 52 and a connecting seat 53, one side of the first mounting seat 51 is fixedly connected with one side of the second mounting seat 52 through a bolt, one end of the connecting seat 53 is rotatably connected to the inner side of the second mounting seat 52, the other end of the connecting seat 53 is fixedly connected with the connecting sleeve 31, the other side of the first mounting seat 51 is mounted on the 7-axis machine tool.

[0034] In this embodiment, the first mounting seat 51 is fixed at a specified position of the 7-axis machine tool through the adaptive structure, the second mounting seat 52 is fixedly connected with the first mounting seat 51 through bolts, one end of the connecting seat 53 is fixed with the connecting sleeve 31, and the other end is rotatably connected in the second mounting seat 52, so that the shank body 1 can rotate in the second mounting seat 52 with the connecting seat 53, to adapt to the angle adjustment requirement of multi-directional processing of the 7-axis machine tool, the 7-axis machine tool drives the first mounting seat 51 and the second mounting seat 52 to move, and the connecting seat 53 and the connecting sleeve 31 transmit power to the shank body 1 and the tool 2, to realize multi-axis linkage processing.

[0035] The working principle and method of using the device are as follows: first, the installation mechanism 5 completes machine tool installation, the first mounting seat 51 is fixed on the 7-axis machine tool, the second mounting seat 52 is connected with the first mounting seat 51 through bolts, to provide an installation basis and angle adaptation capability for the shank, then the connecting port 317 at one end of the shank body 1 is inserted into the connecting sleeve 31, the first spring 37 drives the sliding sheet 38 and the moving rod 39 to move, so that the plug-in block 310 is clamped into the plug-in groove 312 of the connecting port 317 to complete positioning, the threaded sleeve 32 is rotated, which moves along the threaded portion of the connecting sleeve 31, drives the moving sleeve 33 to move synchronously, the moving sleeve 33 cooperates with the connecting block 36, the sliding block 34 through the guide groove 313 and the sliding groove 35, pulls the moving rod 39 to make the plug-in block 310 more tightly clamped, the second spring 316 is always in a compressed state, to provide a pre-tightening force for the connection between the connecting port 317 and the connecting sleeve 31, and the two springs buffer displacement and offset the loosening trend when vibrating.

[0036] Subsequently, the tool 2 is inserted into the middle of the chuck 42, the nut 41 is rotated to move in the threaded area of the shank body 1, the chuck 42 is pushed into the inclined slot 43, the elastic petals of the chuck 42 are radially contracted to tightly hold the tool 2 under the inclined extrusion, the nut 41 drives the first anti-slip sheet 44 to move, so that the clamping block 47 is clamped into the clamping groove 48, the third spring 45 is compressed, the elastic force makes the first anti-slip sheet 44 and the second anti-slip sheet 46 tightly adhere to each other, to increase the rotation resistance of the nut 41 and prevent it from loosening, when the 7-axis machine tool is processed, the whole shank structure is driven to move by the installation mechanism 5, and the rotation characteristic of the connecting seat 53 adapts to the angle requirement of multi-directional processing.

[0037] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A 7-axis machining tool holder anti-loosening fixing structure for automotive aluminum alloy parts, comprising a tool holder body (1), characterized in that: A second anti-loosening mechanism (4) is installed at one end of the handle body (1), and a first anti-loosening mechanism (3) is installed at the other end of the handle body (1). An installation mechanism (5) is installed at one end of the first anti-loosening mechanism (3). The first anti-loosening mechanism (3) includes a connecting sleeve (31) and a connecting port (317). One end of the connecting port (317) is fixedly connected to one end of the handle body (1), and the other end of the connecting port (317) is located inside the connecting sleeve (31). A insertion groove (312) is provided on the outside of the connecting port (317), and an insertion block (310) is inserted into the inside of the insertion groove (312). A threaded part is provided on the outside of the connecting sleeve (31), and a screw is threadedly connected to the threaded part. A threaded sleeve (32) is rotatably connected to one end of a movable sleeve (33), which is fitted onto the outside of a connecting sleeve (31). A guide groove (313) is provided on the inner side of the movable sleeve (33), and a connecting block (36) is slidably connected to the inside of the guide groove (313). A contact plate (314) is abutted against the other end of the threaded sleeve (32), which is slidably connected to the outside of the connecting sleeve (31). A fixing plate (315) is fixedly connected to the outside of the connecting sleeve (31), and a second spring (316) is installed between the fixing plate (315) and the contact plate (314). The second spring (316) is fitted onto the outside of the connecting sleeve (31).

2. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 1, characterized in that: One end of the plug-in block (310) is fixedly connected to a moving rod (39), and one end of the moving rod (39) passes through the connecting sleeve (31) and is fixedly connected to a connecting block (36).

3. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 1, characterized in that: The inner side of the movable sleeve (33) is provided with a sliding groove (35), and a sliding block (34) is slidably connected inside the sliding groove (35). One end of the sliding block (34) is fixedly connected to one end of the connecting block (36).

4. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 1, characterized in that: The connecting sleeve (31) has a fixed cavity (311) inside, and a sliding piece (38) is slidably connected inside the fixed cavity (311). The sliding piece (38) is fixedly connected to the outside of the moving rod (39).

5. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 2, characterized in that: The movable rod (39) is externally sleeved with a first spring (37), which is installed between the sliding plate (38) and the fixed cavity (311).

6. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 1, characterized in that: The second anti-loosening mechanism (4) includes a nut (41), the inner side of which is provided with a threaded area, the threaded area is threadedly connected to the other end of the handle body (1), and the other end of the handle body (1) is provided with an oblique groove (43), and a chuck (42) is inserted into the oblique groove (43).

7. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 6, characterized in that: The other end of the chuck (42) is inserted into the inner side of the inclined groove (43). The chuck (42) is evenly provided with multiple through grooves along the axial direction, dividing the chuck (42) into elastic lobes. A cutting tool (2) is inserted into the middle of the chuck (42).

8. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 6, characterized in that: One end of the nut (41) is fixedly connected to a first anti-slip plate (44), one end of the first anti-slip plate (44) abuts against a second anti-slip plate (46), the second anti-slip plate (46) is slidably connected to the outside of the handle body (1), and a third spring (45) is installed between the handle body (1) and the second anti-slip plate (46), the third spring (45) is sleeved on the outside of the handle body (1).

9. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 8, characterized in that: The second anti-slip piece (46) has a snap-fit ​​groove (48) at one end, and the first anti-slip piece (44) has a snap-fit ​​block (47) fixedly connected to one end, which snaps into the inside of the snap-fit ​​groove (48).

10. The anti-loosening fixing structure for tool holders in 7-axis machining of automotive aluminum alloy parts according to claim 1, characterized in that: The installation mechanism (5) includes a first mounting seat (51), a second mounting seat (52) and a connecting seat (53). One side of the first mounting seat (51) is fixedly connected to one side of the second mounting seat (52) by bolts. One end of the connecting seat (53) is rotatably connected to the inside of the second mounting seat (52), and the other end of the connecting seat (53) is fixedly connected to the connecting sleeve (31).

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