PVD jig for automobile parts

Abstract

The invention discloses a PVD jig for automobile parts, and relates to the technical field of PVD jigs. An automobile part PVD jig comprises a disc, the disc is provided with a control mechanism and a plurality of limiting mechanisms, and the control mechanism is connected with each limiting mechanism; the limiting mechanism comprises an upper inclined plate and a lower inclined plate, the upper inclined plate and the lower inclined plate are both connected to the disc and have deformation capacity, and the upper inclined plate and the lower inclined plate are configured to be capable of limiting parts after deformation; and the control mechanism is connected to the upper inclined plate and the lower inclined plate, and the control mechanism is configured to be capable of maintaining / releasing limitation of the upper inclined plate and the lower inclined plate on the parts. The part feeding and discharging device can facilitate part feeding and discharging.

Description

Technical Field

[0001] The present application relates to the technical field of PVD fixtures, and in particular to a PVD fixture for automotive parts. Background Art

[0002] Dry coating technology is widely used in the field of parts surface treatment. A typical type of coating technology, such as PVD, is widely used in the surface treatment of automotive parts.

[0003] PVD is physical vapor deposition technology, which is widely used in electronics, optics, medical equipment and tool manufacturing. PVD technology forms a high-quality thin film by evaporating the material and depositing it on the surface of the substrate in a vacuum environment, thereby accurately improving the hardness, wear resistance and corrosion resistance of the material. Usually, in order to improve the processing efficiency of parts, factories will use coating jigs. This coating jig can generally hang a large number of parts to be processed. Using PVD and using coating jigs can process parts in large quantities.

[0004] Typical types of automotive parts that require coating are car key housings. Figure 1 The housing a includes a snap-in groove a1 at the end, and the groove angle of the snap-in groove a1 is usually an acute angle.

[0005] The coating jig includes a frame, on which a plurality of connecting circular plates are arranged from top to bottom, and each connecting circular plate is evenly provided with a plurality of limiting components along its own circumferential direction, and the limiting components include a plurality of elastic members arranged in an alternating manner, and the elastic members have deformation ability, and the plurality of elastic members can be inserted into the snap-in grooves by utilizing the deformation ability, and the plurality of elastic members are pressed against the inner wall of the snap-in grooves to limit the outer shell and then suspend the outer shell.

[0006] The structural design of the elastic member and the position of the elastic member reflect the part style that can be limited by the specific limiting component.

[0007] To insert multiple elastic parts into the clamping grooves, workers need to apply force to the multiple elastic parts to deform them. After the multiple elastic parts are inserted into the clamping grooves, the force can be released to tighten the parts. Subsequently, the elastic parts need to be forced again to release the tightening of the parts. When there are a large number of parts to be processed, workers need to repeat the above actions continuously. The continuous force application not only makes workers tired but also takes a long time, which makes it inconvenient for workers to load and unload parts. Summary of the invention

[0008] In order to facilitate loading and unloading of parts, the present application provides a PVD fixture for automotive parts.

[0009] The PVD fixture for automotive parts provided in this application adopts the following technical solution: A PVD fixture for automotive parts, comprising a disc, the disc being equipped with a control mechanism and a plurality of limiting mechanisms, the control mechanism being connected to each limiting mechanism; The limiting mechanism includes an upper inclined plate and a lower inclined plate, both of which are connected to the disc and have deformation capability, and are configured to limit the parts after deformation; the control mechanism is connected to the upper inclined plate and the lower inclined plate, and is configured to maintain / release the limitation of the upper inclined plate and the lower inclined plate on the parts; The control mechanism includes a driving assembly mounted on a disc, a linkage assembly is mounted on the disc corresponding to each limiting mechanism, each linkage assembly is connected to the driving assembly; each linkage assembly is connected to an upper inclined plate and a lower inclined plate; The linkage assembly includes a transmission rod connected to the driving assembly, a mounting hole penetrating to the cavity is opened on the disc, and the transmission rod is inserted into the mounting hole; a nut is provided on the transmission rod, and a linkage rod 1 and a linkage rod 2 are hinged on the nut, an end of the linkage rod 1 away from the nut is hinged to the upper inclined plate, and an end of the linkage rod 2 away from the nut is hinged to the lower inclined plate, and the transmission rod is configured to drive the nut to move, thereby driving the upper inclined plate and the lower inclined plate to approach / move away through the linkage rod 1 and the linkage rod 2.

[0010] By adopting the above technical solution, when a large number of parts need to be processed, the upper inclined plates and the lower inclined plates can be controlled by utilizing a control mechanism so that all the upper inclined plates and the lower inclined plates are deformed. At this time, it is convenient to load multiple limiting mechanisms. The present application can reduce manual operations and facilitate loading and unloading of parts.

[0011] The rotation of the transmission rod can drive the nut to move, thereby driving the linkage rod 1 and the linkage rod 2 to move, and then driving the upper inclined plate and the lower inclined plate to deform closer or farther away.

[0012] Preferably, the driving assembly includes a worm wheel, a cavity is opened in the disc, the worm wheel is arranged in the cavity and is rotatably connected to the disc; the disc has a receiving hole that passes through the cavity, the receiving hole is rotatably connected to a worm, the worm is connected to the worm wheel, and the worm is connected to a driving member; the worm wheel is connected to a linkage shaft, the linkage shaft is equipped with a transmission member 1, the transmission rod is rotatably connected to the mounting hole, a transmission member 2 is installed on the transmission rod in the cavity, and the transmission member 1 is connected to the transmission member 2.

[0013] By adopting the above technical solution, the driving rotating member can drive the worm to rotate and thus drive the worm wheel to rotate. The rotation of the worm wheel will drive the transmission member 1 to rotate through the linkage shaft, thereby driving multiple transmission members 2 to rotate. The rotation of the transmission member 2 will drive the transmission rod to rotate.

[0014] The worm gear can have a self-locking property, and the self-locking property can be used to prevent the transmission rod from being used as a power input end and causing malfunction.

[0015] Preferably, the upper inclined plate includes inclined plate 1 and inclined plate 2, wherein inclined plate 1 is connected to the disc, and inclined plate 2 is connected to an end of inclined plate 1 away from the disc; the angle between the plate surface of inclined plate 1 and the axis of the transmission rod is an acute angle; the angle between the upper end surface of inclined plate 1 and the upper end surface of inclined plate 2 is an obtuse angle.

[0016] By adopting the above technical solution, the end of the second inclined plate away from the disc can be easily clamped in the component to limit the component.

[0017] Preferably, the inclined plate 1 includes a connecting part and a sliding part, the connecting part is connected to the disc, a slot is formed on the connecting part, the sliding part has an insert block, the insert block is inserted in the slot and there is a sliding connection between the insert block and the slot; the connecting part is installed with a locking mechanism, and the locking mechanism is configured to lock the insert block.

[0018] By adopting the above technical solution, the moving sliding part can change the overall length of the tilting plate 1, so that it can be applied to parts with different sizes. To move the sliding part, the locking mechanism needs to be driven to unlock the plug block, and then the sliding part can be moved to adjust the overall length of the tilting plate 1, and then the locking mechanism can be used to lock the plug block to ensure that the sliding part is fixed.

[0019] Preferably, the locking mechanism includes a liquid expansion part, the inner wall of the card slot is provided with a receiving groove, and the liquid expansion part is installed in the receiving groove; the outer wall of the connecting part is provided with a liquid flow channel, liquid is contained in the liquid flow channel, the liquid flow channel is connected with the interior of the liquid expansion part, and an extrusion component is installed in the liquid flow channel, and the extrusion component is configured to be able to squeeze liquid into the liquid expansion part so that the liquid expansion part locks the plug.

[0020] By adopting the above technical solution, the extrusion assembly can be used to squeeze the liquid into the liquid expansion part to achieve locking of the plug block; when the plug block is to be moved, the locking of the plug block by the extrusion assembly needs to be released.

[0021] Preferably, the extrusion assembly includes a screw, the screw is inserted into the liquid flow channel and the screw is threadedly connected to the liquid flow channel, and a push plate is installed on the screw, and the push plate is fitted in the liquid flow channel.

[0022] By adopting the above technical solution, the push plate can be driven to move by rotating the screw to squeeze the liquid.

[0023] Preferably, a limit block 1 is provided on the inner wall of the slot, and a limit block 2 is installed on the plug-in block, and the limit block 2 is configured to move with the plug-in block and abut against the limit block 1 to prevent the plug-in block from leaving the slot.

[0024] By adopting the above technical solution, the abutment between the first limiting block and the second limiting block can prevent the insertion block from moving too far, thereby causing the sliding part to be separated from the connecting part.

[0025] Preferably, the second inclined plate has plastic deformation capability.

[0026] By adopting the above technical solution, force is applied to the inclined plate 2 to cause the inclined plate 2 to plastically deform to meet actual use requirements.

[0027] In summary, the present invention includes at least one of the following beneficial technical effects: 1. When there are a large number of parts to be processed, the upper inclined plate and the lower inclined plate can be controlled by the control mechanism, so that multiple limiting mechanisms can be loaded. This application can reduce manual operations and facilitate loading and unloading of parts; 2. The driving member can drive the worm to rotate, thereby driving the worm wheel to rotate. The rotation of the worm wheel will drive the transmission member 1 to rotate through the linkage shaft, thereby driving the multiple transmission members 2 to rotate. The rotation of the transmission member 2 will drive the transmission rod to rotate. The rotation of the transmission rod can drive the nut to move, thereby driving the linkage rod 1 and the linkage rod 2 to move, and then drive the upper inclined plate and the lower inclined plate to deform closer / farther away. This action can maintain / release the restrictions on the parts; 3. Moving the sliding part can change the overall length of the tilting plate 1 so that it can be applied to parts with different sizes. To move the sliding part, you must first ensure that the liquid expansion part does not lock the plug block, and then move the plug block to drive the sliding part to move to adjust the overall length of the tilting plate 1, and then turn the screw to drive the push plate to squeeze the liquid into the liquid expansion part to lock the plug block. At this time, it can be ensured that the plug block is locked, that is, the sliding part is locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the shell; Figure 2 This is a schematic diagram of the overall structure of a PVD fixture for automotive parts in an embodiment of the present application; Figure 3 This is a cross-sectional view of a PVD fixture for automotive parts; Figure 4 It is a structural diagram used to reflect the upper inclined plate; Figure 5 It is a cross-sectional view for showing the inclined plate 1 and the inclined plate 2; Figure 6 yes Figure 5 A magnified view of part A; Figure 7 It is a cross-sectional view used to reflect the control mechanism.

[0029] Marks in the accompanying drawings: a, housing; a1, snap-in slot; 1. disk; 11. cavity; 12. receiving hole; 13. mounting hole; 2. limiting mechanism; 21. upper inclined plate; 211. inclined plate 1; 2111. connecting part; 21111. slot; 2112. sliding part; 21121. insert; 212. inclined plate 2; 22. lower inclined plate; 23. locking mechanism; 231. liquid expansion member; 232. receiving groove; 233. liquid flow channel; 234. extrusion Pressing assembly; 2341, screw; 2342, push plate; 3, control mechanism; 31, driving assembly; 311, worm gear; 312, worm; 313, driving member; 314, linkage shaft; 315, transmission member 1; 316, transmission member 2; 32, linkage assembly; 321, transmission rod; 322, nut; 323, linkage rod 1; 324, linkage rod 2; 4, limit block 1; 41, limit block 2. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] In the description of the present invention, it should be understood that the description of orientation, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] The embodiment of the present application discloses a PVD fixture for automobile parts, which is used to facilitate the loading of parts. In this embodiment, vacuum plating of a shell a of a car key is taken as an example, and the car key is, for example, an Audi key or a BMW key.

[0033] Reference Figure 2 and Figure 3 A PVD fixture for automotive parts includes a disc 1, on which a control mechanism 3 and a plurality of limiting mechanisms 2 are installed. The plurality of limiting mechanisms 2 are evenly distributed along the circumference of the disc 1. The control mechanism 3 is connected to each limiting mechanism 2. The limiting mechanism 2 can limit a shell a, and the control mechanism 3 can control and maintain / release the limitation of the shell a.

[0034] Reference Figure 2 and Figure 3 , taking the structure of one of the limiting mechanisms 2 as an example: the limiting mechanism 2 includes an upper inclined plate 21 and a lower inclined plate 22, both of which are connected to the disc 1 and have the ability to deform, and the upper inclined plate 21 and the lower inclined plate 22 are symmetrically arranged along the vertical direction, and the upper inclined plate 21 and the lower inclined plate 22 can be inserted into the shell a after deformation, so as to press against the inner wall of the shell a and then limit the shell a. The control mechanism 3 is connected to the upper inclined plate 21 and the lower inclined plate 22, and the control mechanism 3 can maintain / release the upper inclined plate 21 and the lower inclined plate 22 from pressing against the shell a.

[0035] When the number of parts to be processed is large, the control mechanism 3 is used to control the upper inclined plate 21 and the lower inclined plate 22 so that the upper inclined plate 21 and the lower inclined plate 22 are deformed and approach each other, and then the upper inclined plate 21 and the lower inclined plate 22 are loaded, and finally the control mechanism 3 is reused to control all the upper inclined plates 21 and the lower inclined plates 22 to limit the shell a that has been loaded.

[0036] In the present application, the upper inclined plate 21 and the lower inclined plate 22 only need to be deformed slightly to meet the loading and unloading and limiting requirements of the shell a.

[0037] Reference Figure 4 The upper inclined plate 21 and the lower inclined plate 22 have the same structure. Take the structure of the upper inclined plate 21 as an example: the upper inclined plate 21 has elastic deformation capability, and the material of the upper inclined plate 21 is, for example, titanium alloy. The upper inclined plate 21 includes an inclined plate 1 211 and an inclined plate 212, combined with Figure 2 The inclined plate 1 211 is connected to the disc 1, and the inclined plate 212 is fixedly connected to the end of the inclined plate 1 211 away from the disc 1; the angle between the lower end surface of the inclined plate 1 211 and the horizontal plane is an acute angle; the angle between the upper end surface of the inclined plate 1 211 and the upper end surface of the inclined plate 2 212 is an obtuse angle.

[0038] By using the control mechanism 3 to press the upper inclined plate 21 downward and the lower inclined plate 22 upward, the end of the upper inclined plate 21 away from the disc 1 and the end of the lower inclined plate 22 away from the disc 1 can be brought closer to each other. At this time, the upper inclined plate 21 and the lower inclined plate 22 can be easily inserted into the snap-in groove a1. After that, the control mechanism 3 is controlled again to reset the upper inclined plate 21 and the lower inclined plate 22 to complete the loading of the shell a.

[0039] Reference Figure 4 In order to broaden the types of shells a that can be limited by the upper inclined plate 21 and the lower inclined plate 22, the inclined plate 212 has plastic deformation ability. The material of the inclined plate 212 is metal such as low carbon steel. Force is applied to the inclined plate 212 to change the angle between the upper end surface of the inclined plate 212 and the upper end surface of the inclined plate 1 211 to meet different limitation requirements.

[0040] Reference Figure 5 and Figure 6 The inclined plate 211 includes a connecting portion 2111 and a sliding portion 2112, combined with Figure 2 The connecting part 2111 is connected to the disc 1, and a slot 21111 is formed at one end of the connecting part 2111 close to the sliding part 2112. The sliding part 2112 has an insert block 21121. The insert block 21121 is inserted into the slot 21111 and the insert block 21121 and the slot 21111 are slidably connected. The sliding part 2112 can be pulled to drive the insert block 21121 to move in the slot 21111 in a direction away from the disc 1. At this time, the overall length of the upper inclined plate 21 becomes longer. The connecting part 2111 is installed with a locking mechanism 23, and the locking mechanism 23 can lock the insert block 21121 in the slot 21111.

[0041] By moving the sliding part 2112, the overall length of the inclined plate 211, that is, the overall length of the upper inclined plate 21, is changed. Similarly, the overall length of the lower inclined plate 22 is changed accordingly. At this time, the upper inclined plate 21 and the lower inclined plate 22 can be suitable for limiting the shell a of different sizes.

[0042] To move the sliding part 2112, it is first necessary to ensure that the locking mechanism 23 has not locked the plug block 21121. Then the sliding part 2112 can be moved to adjust the overall length of the inclined plate 211. After the adjustment is completed, the locking mechanism 23 is used to lock the plug block 21121 to ensure that the plug block 21121 is fixed, that is, the sliding part 2112 is fixed.

[0043] Reference Figure 6 The locking mechanism 23 includes a hollow liquid expansion member 231. The material of the liquid expansion member 231 is rubber, for example. The inner wall of the card slot 21111 is provided with a receiving groove 232, and the liquid expansion member 231 is installed in the receiving groove 232; the outer wall of the connecting portion 2111 is provided with a liquid flow channel 233, and the liquid flow channel 233 contains liquid. In this embodiment, the liquid is hydraulic oil. The liquid flow channel 233 is connected to the inside of the liquid expansion member 231, and an extrusion component 234 is installed in the liquid flow channel 233. The extrusion component 234 is controlled to squeeze the liquid into the liquid expansion member 231 so that the liquid expansion member 231 locks the plug block 21121. Of course, the extrusion component 234 can also be used to release the lock of the liquid expansion member 231 on the plug block 21121.

[0044] Reference Figure 6 The extrusion assembly 234 includes a screw 2341, which is inserted into the liquid flow channel 233 and threadedly connected to the liquid flow channel 233. The head of the screw 2341 is exposed to the external environment. A push plate 2342 is installed on the screw 2341, and the push plate 2342 is fitted in the liquid flow channel 233.

[0045] By rotating the screw 2341 , the screw 2341 can be driven to move, thereby driving the push plate 2342 to move downward. The moving push plate 2342 will push the hydraulic oil in the liquid flow channel 233 into the liquid expansion member 231 , so that the liquid expansion member 231 expands and presses against the plug block 21121 .

[0046] Reference Figure 6 In order to prevent the insertion block 21121 from moving too far and disengaging from the slot 21111, a limit block 1 4 is provided on the inner wall of the slot 21111, and a limit block 2 41 is installed on the insertion block 21121. The limit block 2 41 is located on the right side of the limit block 1 4. The limit block 2 41 is configured to move with the insertion block 21121 and to abut against the limit block 1 4 to prevent the insertion block 21121 from disengaging from the slot 21111.

[0047] Reference Figure 7 The control mechanism 3 includes a driving assembly 31 installed on the disc 1. A linkage assembly 32 is installed on the disc 1 corresponding to each limiting mechanism 2. Each linkage assembly 32 is connected to the driving assembly 31; each linkage assembly 32 is connected to the upper inclined plate 21 and the lower inclined plate 22.

[0048] Driving the driving assembly 31 can drive all the linkage assemblies 32 to work, thereby driving all the upper inclined plates 21 and the lower inclined plates 22 to deform.

[0049] Reference Figure 7 The drive assembly 31 includes a worm wheel 311. The disk 1 has a cavity 11. The worm wheel 311 is disposed in the cavity 11 and is rotatably connected to the disk 1. The worm wheel 311 is disposed transversely. The disk 1 has a receiving hole 12 that passes through the cavity 11. The receiving hole 12 is rotatably connected to a worm 312. The worm 312 is connected to the worm wheel 311. The worm wheel 311 and the worm 312 can be self-locking. The worm 312 is connected to a driving member 313. The driving member 313 is preferably a motor. The worm wheel 311 is connected to There is a linkage shaft 314, which is vertically arranged and rotatably connected to the disc 1 through a bearing. The linkage shaft 314 is installed with a transmission member 1 315. The transmission member 1 315, the linkage shaft 314 and the worm gear 311 can rotate synchronously. Each linkage component 32 is connected to a transmission member 2 316. The transmission member 2 316 is located in the cavity 11. The transmission member 1 315 is connected to the transmission member 2 316. The transmission member 1 315 and the transmission member 2 316 are both bevel gears.

[0050] The driving member 313 can drive the worm 312 to rotate, thereby driving the worm wheel 311 to rotate. The rotation of the worm wheel 311 will drive the transmission member 1 315 to rotate through the linkage shaft 314, thereby driving multiple transmission members 2 316 to rotate. The rotation of the transmission member 2 316 will transmit power to the linkage assembly 32.

[0051] The worm wheel 311 and the worm 312 can have a self-locking property, and the self-locking property can be used to prevent the linkage assembly 32 from malfunctioning as a power input end, thereby preventing the upper inclined plate 21 and the lower inclined plate 22 from malfunctioning.

[0052] Reference Figure 7 The linkage assembly 32 includes a transmission rod 321 connected to the transmission member 2 316, the transmission rod 321 is arranged along the left and right direction, the disk 1 is provided with a mounting hole 13 that passes through the cavity 11, the transmission rod 321 is penetrated through the mounting hole 13, and the transmission rod 321 is rotatably connected to the mounting hole 13; combined Figure 4 A nut 322 is threadedly connected to the transmission rod 321, and a linkage rod 1 323 and a linkage rod 2 324 are hinged on the nut 322. The linkage rod 1 323 and the linkage rod 2 324 are cross-arranged and have the same structure. The upper end of the linkage rod 1 323 is hinged to the lower end of the upper inclined plate 21, and the lower end of the linkage rod 2 324 is hinged to the lower inclined plate 22. The axes of the hinge shafts used for the above-mentioned hinges are all arranged horizontally and perpendicular to the axis of the transmission rod 321.

[0053] The rotation of the second transmission member 316 drives the transmission rod 321 to rotate, and the rotation of the transmission rod 321 drives the nut 322 to move left and right, thereby driving the upper inclined plate 21 and the lower inclined plate 22 to deform closer or farther through the linkage rod 1 323 and the linkage rod 2 324 .

[0054] In the present application, the cross-arranged linkage rod 1 323 and linkage rod 2 324 can provide support force for the upper inclined plate 21 and the lower inclined plate 22 to ensure the stability of the housing a.

[0055] In the present application, a robot arm can be used to automatically clamp the shell a for loading and unloading, and the present application improves the loading efficiency.

[0056] The implementation principle of a PVD fixture for automotive parts in the embodiment of the present application is: First, the driving member 313 drives the worm 312 to rotate, thereby driving the worm wheel 311 to rotate. The rotation of the worm wheel 311 drives the transmission member 1 315 to rotate through the linkage shaft 314, thereby driving multiple transmission members 2 316 to rotate. The rotation of the transmission member 2 316 drives the transmission rod 321 to rotate. The rotation of the transmission rod 321 drives the nut 322 to move left, thereby driving the upper inclined plate 21 and the lower inclined plate 22 to deform closer through the linkage rod 1 323 and the linkage rod 2 324. Then, the shell a is put on the end of the upper inclined plate 21 away from the disc 1 and ensure that the end of the lower inclined plate 22 away from the disc 1 is also located in the clamping groove a1. Under the action of gravity, the shell a will be suspended on the end of the upper inclined plate 21. After repeating the above actions and hanging all the shells a, the driving member 313 drives the nut 322 to move right. Driven by the linkage rod 1 323 and the linkage rod 2 324, the upper inclined plate 21 and the lower inclined plate 22 are deformed and moved away from each other. At this time, the shell a is pressed tightly by the upper inclined plate 21 and the lower inclined plate 22.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A PVD fixture for automotive parts, characterized by: The invention comprises a disc (1), wherein the disc (1) is provided with a control mechanism (3) and a plurality of limiting mechanisms (2), wherein the control mechanism (3) is connected to each limiting mechanism (2); The limiting mechanism (2) comprises an upper inclined plate (21) and a lower inclined plate (22), wherein the upper inclined plate (21) and the lower inclined plate (22) are both connected to the disc (1) and have deformation capability, and the upper inclined plate (21) and the lower inclined plate (22) are configured to limit the components after deformation; the control mechanism (3) is connected to the upper inclined plate (21) and the lower inclined plate (22), and the control mechanism (3) is configured to maintain / release the limitation of the components by the upper inclined plate (21) and the lower inclined plate (22); The control mechanism (3) comprises a driving assembly (31) mounted on the disc (1); a linkage assembly (32) is mounted on the disc (1) corresponding to each limiting mechanism (2); each linkage assembly (32) is connected to the driving assembly (31); each linkage assembly (32) is connected to the upper inclined plate (21) and the lower inclined plate (22); The linkage assembly (32) comprises a transmission rod (321) connected to the driving assembly (31); the disc (1) is provided with a mounting hole (13) penetrating to the cavity (11); the transmission rod (321) is inserted into the mounting hole (13); a nut (322) is provided on the transmission rod (321); a linkage rod 1 (323) and a linkage rod 2 (324) are hingedly connected to the nut (322); an end of the linkage rod 1 (323) away from the nut (322) is hingedly connected to the upper inclined plate (21); an end of the linkage rod 2 (324) away from the nut (322) is hingedly connected to the lower inclined plate (22); the transmission rod (321) is configured to drive the nut (322) to move, thereby driving the upper inclined plate (21) and the lower inclined plate (22) to move closer or farther away through the linkage rod 1 (323) and the linkage rod 2 (324).

2. The PVD fixture for automotive parts according to claim 1, characterized in that: The driving assembly (31) comprises a worm wheel (311); a cavity (11) is formed in the disc (1); the worm wheel (311) is arranged in the cavity (11) and is rotatably connected to the disc (1); a receiving hole (12) is formed in the disc (1) and passes through the cavity (11); a worm (312) is rotatably connected to the receiving hole (12); the worm (312) is connected to the worm wheel (311); the worm (312) is connected to a driving member (313); the worm wheel (311) is connected to a linkage shaft (314); a transmission member 1 (315) is installed on the linkage shaft (314); the transmission rod (321) is rotatably connected to the mounting hole (13); a transmission member 2 (316) is installed on the transmission rod (321) and is located in the cavity (11); the transmission member 1 (315) is connected to the transmission member 2 (316).

3. The PVD fixture for automotive parts according to claim 1, characterized in that: The upper inclined plate (21) comprises an inclined plate 1 (211) and an inclined plate 2 (212); the inclined plate 1 (211) is connected to the disc (1), and the inclined plate 2 (212) is connected to an end of the inclined plate 1 (211) away from the disc (1); the angle between the plate surface of the inclined plate 1 (211) and the axis of the transmission rod (321) is an acute angle; and the angle between the upper end surface of the inclined plate 1 (211) and the upper end surface of the inclined plate 2 (212) is an obtuse angle.

4. The PVD fixture for automotive parts according to claim 3, characterized in that: The inclined plate (211) comprises a connecting portion (2111) and a sliding portion (2112); the connecting portion (2111) is connected to the disc (1); a slot (21111) is formed on the connecting portion (2111); the sliding portion (2112) has an insert block (21121); the insert block (21121) is inserted into the slot (21111) and the insert block (21121) and the slot (21111) are in sliding connection; the connecting portion (2111) is provided with a locking mechanism (23); the locking mechanism (23) is configured to lock the insert block (21121).

5. The PVD fixture for automotive parts according to claim 4, characterized in that: The locking mechanism (23) comprises a liquid expansion member (231), the inner wall of the card slot (21111) is provided with a receiving groove (232), and the liquid expansion member (231) is installed in the receiving groove (232); the outer wall of the connecting portion (2111) is provided with a liquid flow channel (233), liquid is contained in the liquid flow channel (233), the liquid flow channel (233) is communicated with the inside of the liquid expansion member (231), and an extrusion component (234) is installed in the liquid flow channel (233), and the extrusion component (234) is configured to be able to squeeze liquid into the liquid expansion member (231) so that the liquid expansion member (231) locks the plug (21121).

6. The PVD fixture for automotive parts according to claim 5, characterized in that: The extrusion assembly (234) includes a screw (2341), which is inserted into the liquid flow channel (233) and threadedly connected to the liquid flow channel (233). A push plate (2342) is installed on the screw (2341), and the push plate (2342) is fitted in the liquid flow channel (233).

7. The PVD fixture for automotive parts according to claim 4, characterized in that: A limit block 1 (4) is provided on the inner wall of the slot (21111), and a limit block 2 (41) is installed on the plug block (21121). The limit block 2 (41) is configured to move with the plug block (21121) and abut against the limit block 1 (4) to prevent the plug block (21121) from escaping from the slot (21111).

8. The PVD fixture for automotive parts according to claim 3, characterized in that: The second inclined plate (212) has plastic deformation capability.

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