Self-adaptive positioning clamp for automobile part machining

Abstract

The invention discloses a self-adaptive positioning clamp for automobile part machining, and relates to the technical field of positioning clamps, the self-adaptive positioning clamp comprises a mounting seat, a dismounting mechanism is arranged above the mounting seat, a mounting mechanism is arranged above the mounting seat, the dismounting mechanism comprises a dismounting unit, and the dismounting unit is arranged above the mounting seat. The dismounting unit can dismount a large number of positioning shafts, the collecting unit is arranged above the mounting base, the collecting unit can collect the dismounted positioning shafts in a centralized mode, the mounting mechanism can mount the large number of positioning shafts at a time, and the dismounting unit comprises two rectangular frames; according to the self-adaptive positioning clamp for automobile part machining, by arranging the dismounting unit, the collecting unit and the mounting mechanism, the problems that when equipment is used, replacement of a dismounting block wastes a large amount of time, long-time shutdown is caused, and the production efficiency is reduced are solved.

Description

Technical Field

[0001] This invention relates to the field of positioning fixture technology, specifically to an adaptive positioning fixture for machining automotive parts. Background Technology

[0002] Positioning fixtures are core auxiliary equipment in machining, which can fix parts and ensure machining accuracy. In the machining of automotive parts, traditional fixtures have poor adaptability and take a long time to change and adjust. Adaptive positioning fixtures can be adjusted according to the different shapes of automotive parts, which greatly increases the adaptability of the fixtures.

[0003] Currently, existing positioning fixtures experience wear on the contact surface between the positioning shaft and the part during use. Therefore, the positioning shaft needs to be replaced periodically. However, there are many positioning shafts, and disassembly and installation waste a lot of time, resulting in significantly extended equipment downtime and reduced production efficiency.

[0004] Combining the above issues, we find that existing adaptive positioning fixtures for automotive parts processing on the market cannot simultaneously avoid the problems mentioned above. Even if they can be solved, they require the use of external tools, thus failing to achieve the desired effect. Therefore, we propose an adaptive positioning fixture for automotive parts processing. Summary of the Invention

[0005] The purpose of this invention is to provide an adaptive positioning fixture for machining automotive parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adaptive positioning fixture for machining automotive parts, comprising a mounting base, a disassembly mechanism disposed above the mounting base, and a mounting mechanism disposed above the mounting base; The disassembly mechanism includes a disassembly unit, which is disposed above the mounting base and is capable of disassembling multiple positioning shafts in large quantities. The disassembly mechanism also includes a collection unit, which is disposed above the mounting base and is capable of collecting the disassembled positioning shafts in a centralized manner. The installation mechanism can install a large number of positioning shafts at once.

[0007] Preferably, the disassembly unit includes two rectangular frames, the bottom surface of each rectangular frame is in contact with the upper surface of the mounting base, several identical spiral shafts are fixedly connected to the inner sidewall of each rectangular frame, a movable plate is provided above each rectangular frame, several identical long shafts are rotatably connected to the inner wall of each movable plate, a long plate is fixedly connected to the outer surface of each long shaft, a first transmission gear is fixedly connected to the top end of each long shaft, a rectangular groove is formed on the upper surface of each movable plate, a first transmission gear plate is slidably connected inside each rectangular groove, and the outer surface of each first transmission gear plate meshes with the outer surface of the first transmission gear.

[0008] Preferably, two mounting frames are fixedly connected to the upper surface of each rectangular frame, a positioning groove is provided on the upper surface of each mounting frame, a cross slide groove is provided on the outer surface of each mounting frame, a cross slider is slidably connected inside each cross slide groove, and one side of each cross slider is fixedly connected to the two sides of the movable plate.

[0009] Preferably, a bidirectional air pump is fixedly connected to the upper surface of each rectangular frame, a first air pipe is fixedly connected to the input end of each bidirectional air pump, the bottom end of each first air pipe passes through the rectangular frame and extends into the interior of the rectangular frame, a second air pipe is fixedly connected to the output end of each bidirectional air pump, a fixing plate is fixedly connected to the left side of each rectangular frame, and the outer surface of each second air pipe is fixedly connected to the inner wall of the fixing plate.

[0010] Preferably, two fixing blocks are fixedly connected to both sides of the mounting base, a hydraulic rod is fixedly connected to the inner wall of each fixing block, a transmission plate is fixedly connected to the telescopic end of each hydraulic rod, and one side of each transmission plate is fixedly connected to both sides of the rectangular frame.

[0011] Preferably, each of the rectangular frames has several identical first return springs fixedly connected to its inner sidewall, one end of each first return spring is fixedly connected to a sliding shaft, the outer surface of each sliding shaft is slidably connected to the inside of the rectangular frame, and each spiral shaft is disposed in the inner cavity of the sliding shaft.

[0012] Preferably, each sliding shaft has a disassembly block threadedly connected to its inner wall, and each disassembly block has a first positioning magnet fixedly connected to its inner wall. The bottom surfaces of the two rectangular frames and the upper surface of the mounting base each have two feeding slots.

[0013] Preferably, the collection unit includes two disassembly plates, the outer surface of each disassembly plate being snapped into the interior of the mounting base, and a first circular hole being provided on the left side of each disassembly plate. Two square plates are fixedly connected to the surfaces of two collection chambers slidably connected inside the mounting base, and a second circular hole is provided on one side of each square plate. Each collection chamber is located below the discharge trough. Two second return springs are fixedly connected to the inner wall of the mounting base, and one end of each second return spring is fixedly connected to one side of the collection chamber. An air extraction pipe is fixedly connected to one side of the mounting base, and one end of each air extraction pipe is in contact with one end of a second air pipe.

[0014] Preferably, two mounting plates are fixedly connected to the left side of the mounting base, and the outer surface of each of the air extraction pipes is fixedly connected to the inner wall of the mounting plate.

[0015] Preferably, the mounting mechanism includes two sets of mounting shafts, with two mounting shafts in each set. One end of each mounting shaft is fixedly connected to the outer surface of the mounting base. Two positioning plates are provided on the outer side of the mounting base. Each positioning plate is slidably connected to the outer surface of the mounting shaft. Several identical circular plates are rotatably connected to the inner wall of each positioning plate. A second positioning magnet is fixedly connected to the inner wall of each circular plate. A second transmission gear is fixedly connected to one side of each circular plate. A limit frame is fixedly connected to one side of each positioning plate. A limit plate is slidably connected inside each limit frame. A second transmission gear plate is fixedly connected to the upper surface of each limit plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by providing a disassembly unit, enables the disassembly of multiple disassembly blocks at once, greatly increasing the disassembly efficiency of the disassembly blocks, thereby significantly reducing equipment downtime and further increasing equipment production efficiency.

[0017] 2. The present invention has a collection unit, which can collect the disassembled parts. When collecting a large number of disassembled parts, the collection unit can avoid the problem of large accumulation of disassembled parts in one place.

[0018] 3. This invention, by providing an installation mechanism, enables the mass installation of multiple disassembly blocks. By incorporating a disassembly unit, a collection unit, and an installation mechanism, it effectively avoids the problem of wasting a lot of time and causing prolonged downtime and reduced production efficiency when replacing disassembly blocks during equipment use. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bidirectional air pump of the present invention; Figure 3 This is a schematic diagram of the structure of the helical shaft of the present invention; Figure 4 This is a schematic diagram of the disassembly block of the present invention; Figure 5 This is a schematic diagram of the T-shaped slider of the present invention; Figure 6 This is a schematic diagram of the left-side structure of the positioning plate of the present invention; Figure 7 This is a schematic diagram of the left-side structure of the second transmission gear of the present invention; Figure 8 This is a schematic diagram of the left-side structure of the second reset spring of the present invention.

[0020] In the diagram: 1. Mounting base; 2. Disassembly mechanism; 21. Disassembly unit; 22. Collection unit; 3. Mounting mechanism; 2101. Rectangular frame; 2102. Transmission plate; 2103. Hydraulic rod; 2104. Fixing block; 2105. Second air pipe; 2106. Two-way air pump; 2107. First air pipe; 2108. Disassembly block; 2109. Moving plate; 2110. Mounting frame; 2112. Spiral shaft; 2113. First return spring; 2114. Sliding shaft; 2115. Discharge chute; 2116. Positioning groove; 2117. Cross slide groove; 2118. Long shaft; 2119. Long plate; 2120. 2121 First transmission gear; 2122 Rectangular groove; 2123 Fixing plate; 2124 Cross slider; 2125 First positioning magnet; 2201 Air extraction pipe; 2202 Mounting plate; 2203 Second return spring; 2204 Square plate; 2205 Collection chamber; 2206 Second circular hole; 2207 First circular hole; 2208 Disassembly plate; 301 Positioning plate; 302 Circular plate; 303 Second transmission gear; 304 Mounting shaft; 305 Second positioning magnet; 306 Second transmission gear; 307 Limiting frame; 308 Limiting plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1-6The present invention provides a technical solution: an adaptive positioning fixture for processing automotive parts, including a mounting base 1, a disassembly mechanism 2 above the mounting base 1, and a mounting mechanism 3 above the mounting base 1; The disassembly mechanism 2 includes a disassembly unit 21, which is located above the mounting base 1. The disassembly unit 21 is capable of disassembling multiple positioning shafts in large quantities.

[0023] As a further limitation of the present invention, the disassembly unit 21 includes two rectangular frames 2101, the bottom surface of each rectangular frame 2101 being in contact with the upper surface of the mounting base 1. Several identical spiral shafts 2112 are fixedly connected to the inner sidewall of each rectangular frame 2101. A movable plate 2109 is provided above each rectangular frame 2101. Several identical long shafts 2118 are rotatably connected to the inner wall of each movable plate 2109. A long plate 2119 is fixedly connected to the outer surface of each long shaft 2118, and a [missing information - likely a device or component] is fixedly connected to the top end of each long shaft 2118. The first transmission gear 2120 has a rectangular groove 2122 on the upper surface of each moving plate 2109. The first transmission gear plate 2121 is slidably connected inside each rectangular groove 2122. The outer surface of each first transmission gear plate 2121 meshes with the outer surface of the first transmission gear 2120. By providing a disassembly unit 21, multiple disassembly blocks 2108 can be disassembled at once, greatly increasing the disassembly efficiency of the disassembly blocks 2108. This can significantly reduce the downtime of the equipment and further increase the production efficiency of the equipment.

[0024] Please see Figure 5 Each rectangular frame 2101 has two mounting frames 2110 fixedly connected to its upper surface. Each mounting frame 2110 has a positioning groove 2116 on its upper surface and a cross slide groove 2117 on its outer surface. A cross slider 2124 is slidably connected inside each cross slide groove 2117. One side of each cross slider 2124 is fixedly connected to both sides of the moving plate 2109. By setting the cross slide groove 2117 and the cross slider 2124, and utilizing the characteristic of the cross slider 2124 sliding inside the cross slide groove 2117, the moving plate 2109 can be driven to move in one direction, thus limiting the movement of the moving plate 2109.

[0025] Please see Figure 1Each rectangular frame 2101 has a bidirectional air pump 2106 fixedly connected to its upper surface. The input end of each bidirectional air pump 2106 is fixedly connected to a first air pipe 2107. The bottom end of each first air pipe 2107 passes through the rectangular frame 2101 and extends into the interior of the rectangular frame 2101. The output end of each bidirectional air pump 2106 is fixedly connected to a second air pipe 2105. A fixing plate 2123 is fixedly connected to the left side of each rectangular frame 2101. The outer surface of each second air pipe 2105 is fixedly connected to the inner wall of the fixing plate 2123. By setting up the bidirectional air pump 2106, the first air pipe 2107 and the second air pipe 2105, outside air can be drawn into the interior of the rectangular frame 2101 to provide power for clamping the parts.

[0026] Please see Figure 1 Two fixing blocks 2104 are fixedly connected to both sides of the mounting base 1. A hydraulic rod 2103 is fixedly connected to the inner wall of each fixing block 2104. A transmission plate 2102 is fixedly connected to the telescopic end of each hydraulic rod 2103. One side of each transmission plate 2102 is fixedly connected to both sides of the rectangular frame 2101. By setting the hydraulic rod 2103, the transmission plate 2102 and the rectangular frame 2101 can be moved by the hydraulic rod 2103.

[0027] Please see Figure 3 Each rectangular frame 2101 has several identical first return springs 2113 fixedly connected to its inner sidewall. One end of each first return spring 2113 is fixedly connected to a sliding shaft 2114. The outer surface of each sliding shaft 2114 is slidably connected to the inside of the rectangular frame 2101. Each spiral shaft 2112 is set in the inner cavity of the sliding shaft 2114. By providing the first return springs 2113, the first return springs 2113 can push the sliding shaft 2114 to perform the reset operation.

[0028] Please see Figure 4 Each sliding shaft 2114 has a disassembly block 2108 threadedly connected to its inner wall, and a first positioning magnet 2125 is fixedly connected to the inner wall of each disassembly block 2108. Two feeding slots 2115 are opened on the bottom surface of the two rectangular frames 2101 and the upper surface of the mounting base 1. By setting the disassembly block 2108 and the first positioning magnet 2125, the presence of the first positioning magnet 2125 facilitates the positioning of the first positioning magnet 2125 when it is installed.

[0029] The specific implementation method of this embodiment is as follows: When this device is needed, firstly, the car part to be fixed is placed stably in the center of the mounting base 1, ensuring that the center of gravity of the part is roughly aligned with the center of the mounting base 1 to prevent uneven force during subsequent fixing. Then, the hydraulic rods 2103 on the inner wall of the four fixing blocks 2104 are activated through the equipment control system. The telescopic ends of the hydraulic rods 2103 are controlled to push the transmission plate 2102, thereby driving the two rectangular frames 2101 to slowly move towards the car part. When the rectangular frames 2101 are still a distance away from the car part, the operation of the hydraulic rods 2103 is paused. Then, the bidirectional air pump 2106 fixed on the upper surface of the rectangular frame 2101 is activated. After the bidirectional air pump 2106 is running, the air pump outputs through the second air pipe 210 at the output end. 5. Compressed gas is supplied to the interior of the rectangular frame 2101. Under the action of air pressure, several sliding shafts 2114 connected to the inner wall of the rectangular frame 2101 by the first return spring 2113 will slide synchronously towards the automotive part. Due to the different protrusions and depressions on the surface of the automotive part, some sliding shafts 2114 will first contact the surface of the part. These sliding shafts 2114 that contact the part first will immediately generate a stable clamping pressure on the automotive part, achieving initial limiting. At this time, the air pressure inside the rectangular frame 2101 can no longer push the sliding shafts 2114 that have contacted the part to move. The remaining air pressure will concentrate on the sliding shafts 2114 that have not contacted the part, pushing them to continue sliding until they are in contact with the surface of the part, ultimately forming a stable clamping in all directions, thereby achieving For adaptive fixing of different models and sizes of automotive parts, when it is necessary to replace the worn disassembly block 2108, first turn off the air intake function of the bidirectional air pump 2106 and switch to the suction mode. The bidirectional air pump 2106 extracts the gas inside the rectangular frame 2101 through the first air pipe 2107 at the input end, so that a negative pressure state is gradually formed inside the rectangular frame 2101. Under the suction of the negative pressure, the sliding shaft 2114, which was originally in contact with the automotive part, will move the disassembly block 2108 into the interior of the rectangular frame 2101. During this movement, the spiral shaft 2112 fixed on the inner wall of the rectangular frame 2101 will gradually extend into the inner cavity of the sliding shaft 2114. The spiral stripes on the surface of the spiral shaft 2112 and the spiral stripes on the inner wall of the disassembly block 2108 will interact with each other. With precise groove alignment, as the sliding shaft 2114 continues to move, the spiral stripes cause the disassembly blocks 2108 to rotate around their own axis. Since the disassembly blocks 2108 and the sliding shaft 2114 are connected by threads, the rotation of the disassembly blocks 2108 will gradually disengage from the sliding shaft 2114. Eventually, all the disassembly blocks 2108 will disengage from the sliding shaft 2114 and be located outside the spiral shaft 2112. Subsequently, the operator pushes the first transmission gear plate 2121 in the rectangular groove 2122 on the upper surface of the moving plate 2109. The tooth marks on the surface of the first transmission gear plate 2121 mesh with the first transmission gear 2120 at the top of the long shaft 2118. Driven by the movement of the first transmission gear plate 2121, the first transmission gear 2120 will rotate precisely ninety degrees.This causes the long shaft 2118 and the long plate 2119 fixed to its outer surface to rotate 90 degrees synchronously. At this time, the long plate 2119 will be exactly on one side of the disassembly block 2108, forming a close fit with the disassembly block 2108. Then, through the cross slider 2124 in the cross groove 2117 on the outer surface of the mounting frame 2110, the moving plate 2109 is pulled to move horizontally. During the movement, the long plate 2119 will generate a stable thrust on the disassembly block 2108, pushing the disassembly block 2108 to rotate around the spiral shaft 2112 while gradually disengaging from the spiral shaft 2112. After disengaging, the disassembly block 2108 will smoothly descend into the collection unit 22 through the discharge groove 2115 opened on the bottom surface of the rectangular frame 2101 and the upper surface of the mounting base 1, completing the disassembly and conveying process of the disassembly block 2108.

[0030] Example 2: Please refer to Figure 6 and Figure 7 The present invention provides a technical solution: an adaptive positioning fixture for processing automotive parts. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The disassembly mechanism 2 also includes a collection unit 22, which is disposed above the mounting base 1. The collection unit 22 can collect the disassembled positioning shafts in a centralized manner.

[0031] As a further limitation of the present invention, the collection unit 22 includes two disassembly plates 2208, the outer surface of each disassembly plate 2208 being snapped into the interior of the mounting base 1, and a first circular hole 2207 being provided on the left side of each disassembly plate 2208. Two collection bins 2205 are slidably connected inside the mounting base 1, and two square plates 2204 are fixedly connected to their surfaces. A second circular hole 2206 is provided on one side of each square plate 2204. Each collection bin 2205 is located below the discharge trough 2115. Two second circular holes 2206 are fixedly connected to the inner wall of the mounting base 1. The second return spring 2203 has one end fixedly connected to one side of the collection chamber 2205. One side of the mounting base 1 and the other side are fixedly connected to the air extraction pipe 2201. One end of each air extraction pipe 2201 is in contact with one end of the second air pipe 2105. By setting the collection unit 22, the disassembled disassembly blocks 2108 can be collected. When the collection unit 22 collects a large number of disassembly blocks 2108, it can avoid the problem of a large number of disassembly blocks 2108 accumulating in one position.

[0032] Please see Figure 1 Two mounting plates 2202 are fixedly connected to the left side of the mounting base 1. The outer surface of each suction pipe 2201 is fixedly connected to the inner wall of the mounting plate 2202. By setting the mounting plate 2202, the suction pipe 2201 can be fixed, making the suction pipe 2201 run more stably.

[0033] The specific implementation of this embodiment is as follows: The disassembled disassembly blocks 2108 will fall into the inside of the collection chamber 2205. These disassembly blocks 2108 will accumulate in one position of the collection chamber 2205. Whenever a batch of disassembly blocks 2108 is disassembled, the hydraulic rod 2103 needs to be controlled to retract, driving the second air pipe 2105 to move to the position of contact with the suction pipe 2201. The side of the suction pipe 2201 that contacts the second air pipe 2105 is covered with a layer of rubber. Under the action of the rubber, it can be ensured that when the bidirectional air pump 2106 draws gas from the inside of the suction pipe 2201 through the second air pipe 2105, there will be no air leakage at the connection between the two. At this time, the gas in the internal space of the mounting base 1 can be extracted, so that the collection chamber 2205 moves towards the suction pipe 2201. When the collection chamber 2108... When the square plate 2204 moves towards the suction pipe 2201, and the second circular hole 2206 on the surface of the square plate 2204 overlaps with the first circular hole 2207, outside air can enter the interior of the mounting base 1 through the first circular hole 2207 and the second circular hole 2206, so that the air pressure inside the mounting base 1 is restored. At this time, the collection chamber 2205 is no longer subject to suction, so the collection chamber 2205 will be reset under the action of the second return spring 2203. When the collection chamber 2205 is reset, the first circular hole 2207 and the second circular hole 2206 are no longer overlapping. Therefore, the above operation will be repeated to drive the collection chamber 2205 to move towards the suction pipe 2201. This cycle repeats, so as to achieve the purpose of shaking the disassembly block 2108 inside the collection chamber 2205.

[0034] Example 3: Please refer to Figure 1 and Figure 8 The present invention provides a technical solution: an adaptive positioning fixture for processing automotive parts. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The mounting mechanism 3 can install a large number of positioning shafts at one time.

[0035] As a further limitation of the present invention, the mounting mechanism 3 includes two sets of mounting shafts 304, with two shafts in each set. One end of each mounting shaft 304 is fixedly connected to the outer surface of the mounting base 1. Two positioning plates 301 are provided on the outer side of the mounting base 1. Each positioning plate 301 is slidably connected to the outer surface of the mounting shaft 304. Several identical circular plates 302 are rotatably connected to the inner wall of each positioning plate 301. A second positioning magnet 305 is fixedly connected to the inner wall of each circular plate 302. A second transmission gear is fixedly connected to one side of each circular plate 302. 306. Each positioning plate 301 has a limiting frame 307 fixedly connected to one side. Each limiting frame 307 has a limiting plate 308 slidably connected inside. Each limiting plate 308 has a second transmission toothed plate 303 fixedly connected to its upper surface. By setting up the installation mechanism 3, multiple disassembly blocks 2108 can be installed in large quantities. By setting up the disassembly unit 21, the collection unit 22 and the installation mechanism 3, the problem of wasting a lot of time and causing long-term downtime and reduced production efficiency when replacing the disassembly blocks 2108 during equipment use can be effectively avoided.

[0036] The specific implementation method of this embodiment is as follows: When it is necessary to install the disassembly block 2108, the disassembly block 2108 to be installed is placed in the groove on the surface of the positioning plate 301 in advance, so that the first positioning magnet 2125 fixed on the inner wall of the new disassembly block 2108 corresponds to the second positioning magnet 305 fixed on the inner wall of the circular plate 302. When all the disassembly blocks 2108 are installed on the circular plate 302, the positioning plate 301 is removed and placed into the interior of the mounting frame 2110 along the positioning groove 2116. At this time, the disassembly block 2108 to be replaced has been completely disassembled, and all the sliding shafts 2114 are in the mounting frame 2110 under the action of air pressure. Inside 110, the bidirectional air pump 2106 is then stopped, and all the sliding cylinders will be reset under the action of the first reset spring 2113. Then, the worker presses the positioning plate 301 with one hand and pulls the second transmission gear plate 303 upward with the other hand. By utilizing the meshing relationship between the second transmission gear plate 303 and the second transmission gear 306, the new disassembly block 2108 can be installed on the sliding cylinder. Then, the bidirectional air pump 2106 is controlled to extract the air inside the rectangular frame 2101, so that the sliding cylinder moves slightly to one side. Then, the positioning plate 301 is pulled out to achieve the purpose of batch installation of the disassembly block 2108.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive positioning fixture for machining automotive parts, comprising a mounting base (1), characterized in that: A disassembly mechanism (2) is provided above the mounting base (1), and an installation mechanism (3) is provided above the mounting base (1). The disassembly mechanism (2) includes a disassembly unit (21), which is disposed above the mounting base (1). The disassembly unit (21) is capable of disassembling multiple positioning shafts in large quantities. The disassembly mechanism (2) also includes a collection unit (22), which is located above the mounting base (1) and can collect the disassembled positioning shafts in a concentrated manner. The installation mechanism (3) can install a large number of positioning shafts at once.

2. The adaptive positioning fixture for machining automotive parts according to claim 1, characterized in that: The disassembly unit (21) includes two rectangular frames (2101). The bottom surface of each rectangular frame (2101) is in contact with the upper surface of the mounting base (1). Several identical spiral shafts (2112) are fixedly connected to the inner sidewall of each rectangular frame (2101). A movable plate (2109) is provided above each rectangular frame (2101). Several identical long shafts (2118) are rotatably connected to the inner wall of each movable plate (2109). The outer surface of each shaft (2118) is fixedly connected to a long plate (2119), and the top end of each long shaft (2118) is fixedly connected to a first transmission gear (2120). The upper surface of each moving plate (2109) is provided with a rectangular groove (2122), and the interior of each rectangular groove (2122) is slidably connected to a first transmission tooth plate (2121). The outer surface of each first transmission tooth plate (2121) meshes with the outer surface of the first transmission gear (2120).

3. The adaptive positioning fixture for machining automotive parts according to claim 2, characterized in that: Each of the rectangular frames (2101) has two mounting frames (2110) fixedly connected to its upper surface. Each mounting frame (2110) has a positioning groove (2116) on its upper surface and a cross slide groove (2117) on its outer surface. Each cross slide groove (2117) has a cross slider (2124) slidably connected inside it. One side of each cross slider (2124) is fixedly connected to both sides of the movable plate (2109).

4. The adaptive positioning fixture for machining automotive parts according to claim 2, characterized in that: Each of the rectangular frames (2101) has a bidirectional air pump (2106) fixedly connected to its upper surface. The input end of each bidirectional air pump (2106) is fixedly connected to a first air pipe (2107). The bottom end of each first air pipe (2107) passes through the rectangular frame (2101) and extends into the interior of the rectangular frame (2101). The output end of each bidirectional air pump (2106) is fixedly connected to a second air pipe (2105). A fixing plate (2123) is fixedly connected to the left side of each rectangular frame (2101). The outer surface of each second air pipe (2105) is fixedly connected to the inner wall of the fixing plate (2123).

5. The adaptive positioning fixture for machining automotive parts according to claim 2, characterized in that: Two fixing blocks (2104) are fixedly connected to both sides of the mounting base (1). A hydraulic rod (2103) is fixedly connected to the inner wall of each fixing block (2104). A transmission plate (2102) is fixedly connected to the telescopic end of each hydraulic rod (2103). One side of each transmission plate (2102) is fixedly connected to both sides of the rectangular frame (2101).

6. The adaptive positioning fixture for machining automotive parts according to claim 2, characterized in that: Each of the rectangular frames (2101) has several identical first return springs (2113) fixedly connected to its inner sidewall. Each of the first return springs (2113) has a sliding shaft (2114) fixedly connected to one end. The outer surface of each sliding shaft (2114) is slidably connected to the inside of the rectangular frame (2101). Each of the spiral shafts (2112) is disposed in the inner cavity of the sliding shaft (2114).

7. The adaptive positioning fixture for machining automotive parts according to claim 6, characterized in that: Each sliding shaft (2114) has a disassembly block (2108) threadedly connected to its inner wall, and each disassembly block (2108) has a first positioning magnet (2125) fixedly connected to its inner wall. The bottom surface of the two rectangular frames (2101) and the upper surface of the mounting base (1) are provided with two feeding slots (2115).

8. The adaptive positioning fixture for machining automotive parts according to claim 4, characterized in that: The collection unit (22) includes two disassembly plates (2208). The outer surface of each disassembly plate (2208) is snapped into the interior of the mounting base (1). A first circular hole (2207) is opened on the left side of each disassembly plate (2208). Two collection chambers (2205) are slidably connected inside the mounting base (1). Two square plates (2204) are fixedly connected to the surface of each collection chamber (2205). A second circular hole (2206) is opened on one side of each square plate (2204). Each collection chamber (2205) is located below the discharge trough (2115). Two second return springs (2203) are fixedly connected to the inner wall of the mounting base (1). One end of each second return spring (2203) is fixedly connected to one side of the collection chamber (2205). One side and one side of the mounting base (1) are fixedly connected to a suction pipe (2201). One end of each suction pipe (2201) is in contact with one end of the second air pipe (2105).

9. The adaptive positioning fixture for machining automotive parts according to claim 8, characterized in that: Two mounting plates (2202) are fixedly connected to the left side of the mounting base (1), and the outer surface of each of the air extraction pipes (2201) is fixedly connected to the inner wall of the mounting plate (2202).

10. The adaptive positioning fixture for machining automotive parts according to claim 1, characterized in that: The mounting mechanism (3) includes two sets of mounting shafts (304), each set of mounting shafts (304) has two shafts. One end of each mounting shaft (304) is fixedly connected to the outer surface of the mounting base (1). Two positioning plates (301) are provided on the outer side of the mounting base (1). Each positioning plate (301) is slidably connected to the outer surface of the mounting shaft (304). Several identical circular plates (302) are rotatably connected to the inner wall of each positioning plate (301). A second positioning magnet (305) is fixedly connected to the inner wall of each circular plate (302). A second transmission gear (306) is fixedly connected to one side of each circular plate (302). A limit frame (307) is fixedly connected to one side of each positioning plate (301). A limit plate (308) is slidably connected inside each limit frame (307). A second transmission gear plate (303) is fixedly connected to the upper surface of each limit plate (308).

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