Self-adaptive fixture for special-shaped metal parts of machine tool

Abstract

The present application belongs to the technical field of tooling fixture, in particular to a special-shaped metal piece self-adaptive fixture for machine tool, which comprises a base, a machining assembly is arranged on the top of the base, a workbench is arranged above the base, parallel plates are symmetrically and fixedly installed on the top of the workbench, a plurality of clamping plates are slidably installed on the inner walls of the two parallel plates, an extrusion assembly is arranged above the workbench, a driving assembly is arranged at the bottom of the base, and the driving assembly is used to drive the extrusion assembly to drive the clamping plates to move to realize the clamping work of the special-shaped metal piece. The driving assembly drives the extrusion assembly, and then pushes the plurality of clamping plates to slide. The clamping plates cooperate with the clamping assembly to automatically adjust the position according to the profile of the surface of the special-shaped workpiece, realize the stable clamping of various special-shaped metal pieces, greatly expand the application range of the fixture, and do not need to specially design and replace the fixture for workpieces of different sizes, thereby improving the versatility and utilization rate of the equipment.

Description

Technical Field

[0001] This invention belongs to the field of tooling and fixture technology, specifically an adaptive fixture for irregularly shaped metal parts for machine tools. Background Technology

[0002] In the field of high-end equipment manufacturing, machine tools are core processing equipment, and the performance of their fixtures directly affects the workpiece processing accuracy and efficiency. Traditional machine tool fixtures mostly adopt rigid positioning and fixed clamping methods, using standard jaws, V-blocks or bolt clamping structures to position and fix regular-shaped workpieces (such as cylindrical, square or flat workpieces). Such fixtures rely on the precise matching between the workpiece shape and the fixture positioning surface, and ensure processing stability through mechanical limits or preload. They have advantages such as simple structure, low cost and wide applicability, and occupy a dominant position in the batch processing of standardized parts.

[0003] However, with the increasing demand for complex structural components in fields such as aerospace, automotive lightweighting, and medical devices, the need for processing irregularly shaped metal parts is becoming increasingly prominent. Due to their irregular shapes, traditional fixtures cannot achieve uniform clamping through a single fixing method, and the clamping force cannot be adaptively adjusted to match the workpiece contour. These problems not only limit the machine tool's ability to process irregularly shaped workpieces, but also lead to increased workpiece scrap rate and low processing efficiency due to clamping errors, becoming a technical bottleneck that urgently needs to be overcome in high-end manufacturing.

[0004] Therefore, the present invention provides an adaptive fixture for irregularly shaped metal parts for machine tools. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides an adaptive fixture for irregularly shaped metal parts for machine tools, including a base, a processing component on the top of the base, a worktable above the base, parallel plates symmetrically fixedly installed on the top of the worktable, several clamping plates slidably installed on the inner walls of the two parallel plates, an extrusion component above the worktable, and a driving component at the bottom of the base. The driving component is used to drive the extrusion component to move the clamping plates to achieve the clamping of irregularly shaped metal parts, and a clamping component is provided at one end of each of the clamping plates.

[0007] Preferably, the extrusion assembly includes guide wheels A, a plurality of which are fixedly installed at one end of the clamping plate. A plurality of guide wheels B are fixedly installed on the opposite sides of the parallel plates. The guide wheels B are arranged crosswise with the clamping plate. Two sets of positioning plates are symmetrically fixedly installed on the top of the worktable, with two positioning plates in each set. Guide wheels C are fixedly installed on the outer wall of each positioning plate. Extrusion wheels are symmetrically arranged above the worktable, with two extrusion wheels located between each set of guide wheels C. A connecting rope is installed between the extrusion wheels, guide wheels C, guide wheels B, and guide wheels A for transmission.

[0008] Preferably, the drive assembly includes a fixed base, which is fixedly installed on the bottom of the worktable. A bidirectional cylinder is fixedly installed on the inner wall of the fixed base. A translation plate is fixedly installed on each of the two output shafts of the bidirectional cylinder. A slide is fixedly installed on the top of each translation plate. The outer wall of each slide is slidably connected to the inner wall of the worktable. The two extrusion rollers are respectively fixedly installed on the top of the two slides.

[0009] Preferably, the clamping assembly includes a detection box, which is fixedly installed on the end of the clamping plate away from the guide wheel A. A pressure sensor is fixedly installed on the inner wall of the detection box, and a protective component is provided on the inner wall of the detection box.

[0010] Preferably, the protective component includes two elastic telescopic rods, which are symmetrically fixedly installed on the inner wall of the detection box, and a clamping head is fixedly installed between the two elastic telescopic rods.

[0011] Preferably, each of the clamping plates is provided with an automatic reset component above it, and each of the clamping plates is provided with an adjustment component on its inner wall.

[0012] Preferably, the automatic reset assembly includes a support plate, which is fixedly installed on the inner wall of the parallel plate. A receiving plate is fixedly installed at one end of the clamping plate. An elastic element is fixedly installed between the receiving plate and the support plate. A sliding column is fixedly installed on one side of the support plate. The outer wall of the sliding column is slidably connected to the inner wall of the receiving plate. A limiting plate is fixedly installed at one end of the sliding column, and the limiting plate abuts against the receiving plate.

[0013] Preferably, the adjustment assembly includes an adjusting threaded rod and a limiting slider. Both the adjusting threaded rod and the limiting slider are slidably mounted on the inner wall of the clamping plate. One end of the adjusting threaded rod is fixedly connected to the inner wall of the limiting slider. An adjusting ring is rotatably mounted on the inner wall of the clamping plate. The inner wall of the adjusting ring is threadedly connected to the outer wall of the adjusting threaded rod. The end of the adjusting threaded rod away from the limiting slider is fixedly connected to the detection box.

[0014] Preferably, connecting shafts are fixedly installed on the inner walls of both ends of the parallel plate, and rollers are rotatably installed on the outer walls of the connecting shafts.

[0015] Preferably, the processing assembly includes a three-axis motion structure, which is fixedly installed on the top of the base, the worktable is fixedly installed on the top of the three-axis motion structure, and a processing structure is fixedly installed on the outer wall of the three-axis motion structure.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention drives the extrusion component through the driving component, which in turn pushes multiple clamping plates to slide. During the clamping process, the clamping plates, in conjunction with the clamping component, can automatically adjust their position according to the contour of the irregular workpiece surface, thereby achieving stable clamping of various irregular metal parts. This greatly expands the applicability of the fixture, eliminating the need to design and replace fixtures specifically for workpieces of different sizes, and improving the versatility and utilization of the equipment.

[0018] 2. This invention only requires placing the irregularly shaped metal part between two parallel plates and then activating the drive assembly. The fixture can automatically clamp the workpiece. The entire clamping process is simple and quick, without complicated operating steps or tedious adjustment work, which greatly shortens the clamping time and improves production efficiency. Especially when mass-producing irregularly shaped metal parts, the advantages of rapid clamping are more obvious, which can effectively reduce the production cycle and improve the economic benefits of enterprises.

[0019] 3. When the workpiece is released from its fixation, the automatic reset component of this invention enables the clamping plate to automatically return to its initial position, eliminating the need for manual adjustment of the clamping plate's position. This greatly saves operating time and labor costs. Operators only need to control the extension and retraction of the bidirectional cylinder to quickly complete the clamping and releasing operations of the workpiece, significantly improving production efficiency. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the top structure of the workbench of the present invention;

[0023] Figure 3 This is a schematic diagram of the bottom structure of the workbench of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure at the parallel plate of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure at the extrusion wheel of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure at point A of the guide wheel of the present invention;

[0027] Figure 7 This is a schematic diagram of the protective component in a disassembled state according to the present invention;

[0028] Figure 8 This is a cross-sectional view of the clamping plate structure of the present invention.

[0029] In the diagram: 1. Base; 2. Worktable; 3. Parallel plate; 4. Clamping plate; 5. Guide wheel A; 6. Guide wheel B; 7. Positioning plate; 8. Guide wheel C; 9. Extrusion wheel; 10. Connecting rope; 11. Fixed seat; 12. Two-way cylinder; 13. Translation plate; 14. Slide seat; 15. Detection box; 16. Pressure sensor; 17. Elastic telescopic rod; 18. Clamping head; 19. Support plate; 20. Receiving plate; 21. Elastic element; 22. Sliding column; 23. Limiting plate; 24. Adjusting threaded rod; 25. Limiting slider; 26. Adjusting ring; 27. Connecting shaft; 28. Roller; 29. ​​Three-axis motion structure; 30. Machining structure. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1 to 6As shown in the embodiment of the present invention, an adaptive fixture for irregularly shaped metal parts for machine tools includes a base 1. A processing component is disposed on the top of the base 1, and a worktable 2 is disposed above the base 1. Parallel plates 3 are symmetrically fixedly mounted on the top of the worktable 2. A plurality of clamping plates 4 are slidably mounted on the inner walls of the two parallel plates 3. An extrusion component is disposed above the worktable 2, and a drive component is disposed at the bottom of the base 1. The drive component is used to drive the extrusion component to move the clamping plates 4 to achieve the clamping operation of the irregularly shaped metal parts. One end of each of the clamping plates 4 is provided with... There is a clamping assembly; when fixing irregularly shaped workpieces, the workpiece is first placed between two parallel plates 3, and then the drive assembly is activated. As the drive assembly moves, it drives the pressing assembly to move as well. As the pressing assembly moves, it simultaneously pushes each clamping plate 4 to slide within the parallel plates 3. The clamping plates 4 on the inner sides of the two parallel plates 3 will move closer to each other. As the clamping plates 4 move, the clamping assemblies located at their ends will move accordingly. The pressing assembly, together with each clamping plate 4, forms a continuous transmission system. Therefore, as the drive assembly operates, each clamping assembly will follow the clamping plates 4. The movement automatically adapts to the contour of the workpiece surface, ensuring that each clamping component fits snugly against the workpiece, thus achieving adaptive fixing of irregularly shaped workpieces. This allows the device to fix different irregularly shaped workpieces. Once the workpiece is fixed, the processing component can be activated to process it. In summary, this invention uses a drive component to drive an extrusion component, which in turn pushes multiple clamping plates 4 to slide. During the clamping process, the clamping plates 4, in conjunction with the clamping components, can automatically adjust their position according to the contour of the irregularly shaped workpiece surface, achieving stable clamping of various irregularly shaped metal parts. This greatly expands the applicability of the fixture, eliminating the need for specially designed and replaced fixtures for workpieces of different sizes, thus improving the versatility and utilization of the equipment. In use, simply place the irregularly shaped metal part between two parallel plates 3, then activate the drive component, and the fixture will automatically clamp the workpiece. The entire clamping process is simple and quick, requiring no complex operating steps or tedious adjustments, greatly shortening clamping time and improving production efficiency. Especially when mass-producing irregularly shaped metal parts, the advantages of rapid clamping are more obvious, effectively reducing the production cycle and improving the economic benefits of enterprises.

[0032] like Figures 1 to 6As shown, the extrusion assembly includes guide wheels A5, with several guide wheels A5 fixedly installed at one end of the clamping plate 4. Several guide wheels B6 are fixedly installed on the opposite sides of the parallel plates 3, with the guide wheels B6 arranged intersecting the clamping plate 4. Two sets of positioning plates 7 are symmetrically fixedly installed on the top of the worktable 2, with two plates in each set. Guide wheels C8 are fixedly installed on the outer wall of each positioning plate 7. Extrusion wheels 9 are symmetrically arranged above the worktable 2, with two extrusion wheels 9 located between each set of guide wheels C8. Connecting ropes 10 are installed between the extrusion wheels 9, guide wheels C8, guide wheels B6, and guide wheels A5 for transmission. After the workpiece is placed between the two parallel plates 3, the drive assembly is activated, and the drive assembly will push... The two extrusion rollers 9 move away from each other. When the two extrusion rollers 9 move away from each other, they will simultaneously pull the connecting rope 10 from both sides to move. When the connecting rope 10 moves, it will squeeze the guide roller A5 through the guide roller C8 and the guide roller B6. Since the guide roller A5 is fixed at the end of the clamping plate 4 away from the clamping assembly, the squeezed guide roller A5 will push the clamping plate 4 to move towards the workpiece. The connecting rope 10 connects the clamping plates 4 together through the guide roller A5, the guide roller B6, the guide roller C8 and the extrusion rollers 9. Therefore, when the clamping plates 4 drive the clamping assembly to move towards the workpiece, they will adapt to the contour of the workpiece surface, so that each clamping assembly can fit with the workpiece, thereby realizing the fixation of irregular workpieces.

[0033] like Figures 2 to 3 and Figure 5 As shown, the drive assembly includes a fixed base 11, which is fixedly installed at the bottom of the worktable 2. A bidirectional cylinder 12 is fixedly installed on the inner wall of the fixed base 11. A translation plate 13 is fixedly installed on each of the two output shafts of the bidirectional cylinder 12. A slide block 14 is fixedly installed on the top of each translation plate 13. The outer walls of the slide blocks 14 are slidably connected to the inner wall of the worktable 2. Two extrusion wheels 9 are respectively fixedly installed on the tops of the two slide blocks 14. The bidirectional cylinder 12 is fixed to the bottom of the worktable 2 via the fixed base 11. When fixing the workpiece, the bidirectional cylinder 12 is activated, and it pushes the two translation plates 13 to move synchronously in opposite directions. During the movement, the translation plates 13 will... The two slide blocks 14 are moved along the preset slide groove. When the slide blocks 14 move, they will drive the two extrusion wheels 9 to move, thereby providing power for fixing the workpiece. When it is necessary to release the workpiece, the bidirectional cylinder 12 can be retracted. The two output shafts of the bidirectional cylinder 12 can move synchronously in opposite directions. This characteristic allows the two translation plates 13 to move in opposite directions simultaneously and at equal distances. The translation plates 13 drive the slide blocks 14 and the extrusion wheels 9 to move synchronously in opposite directions, ensuring that the force on both sides of the connecting rope 10 is uniform. This allows each clamping plate 4 to approach the workpiece at the same speed and force, achieving multi-point uniform clamping of the workpiece and improving the stability and accuracy of clamping.

[0034] like Figures 6 to 7 As shown, the clamping assembly includes a detection box 15, which is fixedly installed on the end of the clamping plate 4 away from the guide wheel A5. A pressure sensor 16 is fixedly installed on the inner wall of the detection box 15, and a protective component is provided on the inner wall of the detection box 15. When the clamping assembly contacts the workpiece to fix it, the protective component will squeeze the pressure sensor 16 under the action of the workpiece's reaction force. The pressure sensor 16 can detect the squeezing force applied to the workpiece by each clamping assembly. The pressure data of each pressure sensor 16 can determine whether the fixture has completed the workpiece fixing work, achieving precise force control and avoiding workpiece surface indentation, deformation, or internal structural damage due to excessive clamping force. When processing irregularly shaped metal parts, inconsistent force at each clamping point can cause workpiece off-center loading, resulting in vibration or displacement during processing, affecting processing accuracy and surface quality. The pressure sensor 16 can monitor the pressure at each clamping point in real time. By adjusting the control system, the force at each clamping point is made uniform, effectively preventing workpiece off-center loading, ensuring the stability of the processing process, and improving processing accuracy and product quality.

[0035] like Figure 7 As shown, the protective assembly includes two elastic telescopic rods 17, which are symmetrically fixedly installed on the inner wall of the detection box 15. A clamping head 18 is fixedly installed between the two elastic telescopic rods 17. When the clamping assembly clamps and fixes the workpiece, the clamping head 18 will contact the surface of the workpiece. The surface of the clamping head 18 is treated with anti-slip to ensure the stability of the workpiece when it is fixed. When the clamping head 18 applies pressure to the workpiece, the reaction force of the workpiece will squeeze the clamping head 18 to cause the elastic telescopic rods 17 to contract, thereby causing the clamping head 18 to squeeze the pressure sensor 16 to achieve pressure detection. The clamping head 18 can protect the pressure sensor 16 and prevent the pressure sensor 16 from being damaged by the special shape of the irregular workpiece when it comes into contact with the irregular workpiece.

[0036] like Figure 6 and Figure 8 As shown, each clamping plate 4 is equipped with an automatic reset component above it, and each clamping plate 4 has an adjustment component on its inner wall. When the bidirectional cylinder 12 retracts to release the workpiece, the automatic reset component enables the clamping plate 4 to automatically reset back to its initial position, eliminating the need for manual adjustment of the clamping plate 4's position. This greatly saves operating time and labor costs. Operators only need to control the extension and retraction of the bidirectional cylinder 12 to quickly complete the clamping and releasing operations of the workpiece, significantly improving production efficiency. In addition, the automatic reset function of the clamping plate 4 ensures that the connecting rope 10 remains taut, preventing the connecting rope 10 from becoming loose and affecting the next fixing operation. The position of the clamping component can be adjusted by the adjustment component, further increasing the adaptability of the device to the workpiece.

[0037] like Figure 4 and Figure 6 As shown, the automatic reset assembly includes a support plate 19, which is fixedly installed on the inner wall of the parallel plate 3. A receiving plate 20 is fixedly installed on one end of the clamping plate 4. An elastic element 21 is fixedly installed between the receiving plate 20 and the support plate 19. A sliding column 22 is fixedly installed on one side of the support plate 19. The outer wall of the sliding column 22 is slidably connected to the inner wall of the receiving plate 20. A limiting plate 23 is fixedly installed on one end of the sliding column 22, and the limiting plate 23 abuts against the receiving plate 20. When the clamping plate 4 moves to fix the workpiece, the receiving plate 20 moves along with the clamping plate 4. The elastic element 21 will slide along the sliding column 22 and squeeze the elastic element 21. Therefore, when the work is fixed, the elastic element 21 is in a compressed state. When the bidirectional cylinder 12 contracts and releases the workpiece, the elastic element 21 will push the receiving plate 20 to reset through its own reverse elastic force. The receiving plate 20 will then drive the clamping plate 4 back to the initial position, achieving the effect of automatic reset of the clamping plate 4. This greatly saves operation time and labor costs, and is especially suitable for batch processing scenarios, significantly improving production efficiency. The automatic reset of the clamping plate 4 will keep the connecting rope 10 taut and prevent the connecting rope 10 from slack and falling.

[0038] like Figure 8As shown, the adjustment assembly includes an adjusting threaded rod 24 and a limiting slider 25. Both the adjusting threaded rod 24 and the limiting slider 25 are slidably mounted on the inner wall of the clamping plate 4. One end of the adjusting threaded rod 24 is fixedly connected to the inner wall of the limiting slider 25. An adjusting ring 26 is rotatably mounted on the inner wall of the clamping plate 4. The inner wall of the adjusting ring 26 is threadedly connected to the outer wall of the adjusting threaded rod 24. The end of the adjusting threaded rod 24 away from the limiting slider 25 is fixedly connected to the detection box 15. The adjusting threaded rod 24 cannot rotate due to the restriction of the limiting slider 25. Therefore, the adjusting threaded rod 24 will not rotate when the adjusting ring 26 is rotated. When the adjusting ring 26 and the adjusting threaded rod 24 rotate relative to each other, the threaded engagement will cause the adjusting threaded rod 24 to move horizontally. Since the detection box 15 is fixed to one end of the adjusting threaded rod 24, the movement of the adjusting threaded rod 24 will drive the detection box 15 to move. The adjustable position of the clamping component allows for adjustment of its position, further enhancing the device's adaptability to fixture fixation. The threaded drive offers high precision; by controlling the rotation angle of the adjusting ring 26, the movement distance of the adjusting threaded rod 24 can be precisely controlled, thus achieving precise fine-tuning of the clamping component's position. This is particularly important for processing irregularly shaped metal parts with extremely high clamping position requirements, meeting the precise needs of different processing techniques and workpiece dimensions. Irregularly shaped metal parts vary greatly in shape and size; the adjusting component allows operators to flexibly adjust the position of the clamping component according to the shape and size of different workpieces, finding the optimal clamping point. Whether the irregularly shaped metal part has an irregular contour, curved surface, or special structure, stable and reliable clamping can be achieved by adjusting the position of the clamping component, greatly improving the fixture's adaptability to different workpieces.

[0039] like Figure 4 As shown, connecting shafts 27 are fixedly installed on the inner walls of both ends of the parallel plate 3, and rollers 28 are rotatably installed on the outer walls of the connecting shafts 27. The connecting rope 10 needs to move frequently during the operation of the clamp. During the repeated sliding process, the connecting rope 10 may rub violently against the surface of the parallel plate 3. This rubbing will not only wear down the outer protective layer of the connecting rope 10, but may also damage the inner rope core, resulting in a decrease in the strength and a shortened service life of the connecting rope 10. The rollers 28 are rotatably installed at both ends of the parallel plate 3 through the connecting shafts 27 to prevent the connecting rope 10 from rubbing against the parallel plate 3 and being damaged. The rollers 28 convert the sliding friction force into rolling friction force, which can effectively protect the connecting rope 10.

[0040] like Figure 1As shown, the machining assembly includes a three-axis motion structure 29, which is fixedly installed on the top of the base 1. The worktable 2 is fixedly installed on the top of the three-axis motion structure 29, and a machining structure 30 is fixedly installed on the outer wall of the three-axis motion structure 29. When machining a workpiece, the three-axis motion structure 29 can drive the machining structure 30 to move. When the machining structure 30 moves to the designated position, the machining structure 30 can be used to machine the workpiece.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-adaptive fixture for irregularly shaped metal parts used in machine tools, comprising a base (1), characterized in that: A processing component is provided on the top of the base (1), and a workbench (2) is provided above the base (1). Parallel plates (3) are symmetrically fixed on the top of the workbench (2). Several clamping plates (4) are slidably installed on the inner walls of the two parallel plates (3). An extrusion component is provided above the workbench (2), and a driving component is provided at the bottom of the base (1). The driving component is used to drive the extrusion component to move the clamping plates (4) to achieve the clamping work of irregular metal parts. A clamping component is provided at one end of each of the clamping plates (4).

2. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 1, characterized in that: The extrusion assembly includes guide wheels A (5), a plurality of which are fixedly installed at one end of the clamping plate (4). A plurality of guide wheels B (6) are fixedly installed on the side of the parallel plates (3) that are far apart from each other. The guide wheels B (6) are arranged crosswise with the clamping plate (4). Two sets of positioning plates (7) are symmetrically fixedly installed on the top of the workbench (2). There are two positioning plates (7) in each set. Guide wheels C (8) are fixedly installed on the outer wall of the positioning plates (7). Extrusion wheels (9) are symmetrically arranged above the workbench (2). The two extrusion wheels (9) are located between each set of guide wheels C (8). A connecting rope (10) is installed between the extrusion wheels (9), guide wheels C (8), guide wheels B (6) and guide wheels A (5).

3. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 2, characterized in that: The drive assembly includes a fixed base (11), which is fixedly installed at the bottom of the workbench (2). A two-way cylinder (12) is fixedly installed on the inner wall of the fixed base (11). A translation plate (13) is fixedly installed on each of the two output shafts of the two-way cylinder (12). A slide block (14) is fixedly installed on the top of each translation plate (13). The outer wall of the slide block (14) is slidably connected to the inner wall of the workbench (2). The two extrusion wheels (9) are fixedly installed on the top of the two slide blocks (14).

4. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 2, characterized in that: The clamping assembly includes a detection box (15), which is fixedly installed on the end of the clamping plate (4) away from the guide wheel A (5). A pressure sensor (16) is fixedly installed on the inner wall of the detection box (15), and a protective assembly is provided on the inner wall of the detection box (15).

5. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 4, characterized in that: The protective assembly includes two elastic telescopic rods (17), which are symmetrically fixedly installed on the inner wall of the detection box (15), and a clamping head (18) is fixedly installed between the two elastic telescopic rods (17).

6. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 4, characterized in that: An automatic reset component is provided above each of the clamping plates (4), and an adjustment component is provided on the inner wall of each of the clamping plates (4).

7. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 6, characterized in that: The automatic reset assembly includes a support plate (19), which is fixedly installed on the inner wall of the parallel plate (3). A receiving plate (20) is fixedly installed at one end of the clamping plate (4). An elastic element (21) is fixedly installed between the receiving plate (20) and the support plate (19). A sliding column (22) is fixedly installed on one side of the support plate (19). The outer wall of the sliding column (22) is slidably connected to the inner wall of the receiving plate (20). A limiting plate (23) is fixedly installed at one end of the sliding column (22). The limiting plate (23) abuts against the receiving plate (20).

8. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 6, characterized in that: The adjustment assembly includes an adjusting threaded rod (24) and a limiting slider (25). The adjusting threaded rod (24) and the limiting slider (25) are both slidably installed on the inner wall of the clamping plate (4). One end of the adjusting threaded rod (24) is fixedly connected to the inner wall of the limiting slider (25). An adjusting ring (26) is rotatably installed on the inner wall of the clamping plate (4). The inner wall of the adjusting ring (26) is threadedly connected to the outer wall of the adjusting threaded rod (24). The end of the adjusting threaded rod (24) away from the limiting slider (25) is fixedly connected to the detection box (15).

9. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 1, characterized in that: The inner walls of both ends of the parallel plate (3) are fixedly installed with connecting shafts (27), and the outer walls of the connecting shafts (27) are rotatably installed with rollers (28).

10. The adaptive fixture for irregularly shaped metal parts for machine tools according to claim 1, characterized in that: The processing assembly includes a three-axis motion structure (29), which is fixedly installed on the top of the base (1). The worktable (2) is fixedly installed on the top of the three-axis motion structure (29), and a processing structure (30) is fixedly installed on the outer wall of the three-axis motion structure (29).

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