A fixture for electrophoretic painting

Abstract

The utility model relates to the technical field of coating fixture, and disclose a clamp for electrophoretic coating, including the mounting panel, the below of mounting panel is provided with the connecting plate, the top fixed mounting of connecting plate has the guide rod. Through setting up telescopic hydraulic cylinder drive sliding seat along guide reinforcing batten slide, drive adjustment rack through with the gear wheel meshing realizes two groups of clamping alignment plate synchronous or opposite movement, can adapt to different width work piece, cooperation guide reinforcing batten provides stable track for the sliding of sliding seat and moving plate, enhances the overall structural strength and stability of clamping part, reduces the clamping failure risk caused by vibration or external force, at the same time, the inside wall deformation clamping column of clamping alignment plate can be according to the work piece surface shape self -adaptation deformation under the spring action, ensure that clamping is stable and reliable, avoid work piece to shift or sway in the electrophoresis process, reach the effect of improving coating quality.

Description

Technical Field

[0001] This utility model relates to the field of coating fixture technology, specifically a fixture for electrophoretic coating. Background Technology

[0002] Electrophoretic coating is a coating method that uses an external electric field to cause pigments and resin particles suspended in an electrophoretic solution to migrate directionally and deposit onto the surface of a workpiece to form a coating. In modern industrial production, electrophoretic coating, as a highly efficient, environmentally friendly surface treatment technology producing excellent coating quality, is widely used in many fields such as automotive parts, appliance housings, and hardware products. Electrophoretic coating uses an electric field to cause charged paint particles to migrate directionally and deposit on the surface of the workpiece, forming a uniform and dense coating. This not only improves the product's corrosion resistance, wear resistance, and aesthetics but also effectively reduces production costs and increases production efficiency.

[0003] Traditional electrophoretic coating fixtures typically employ fixed clamping structures with relatively fixed shapes and dimensions, making them unsuitable for clamping workpieces of varying shapes and sizes. When dealing with irregularly shaped, curved, or dimensionally variable workpieces, traditional fixtures often fail to provide stable and reliable clamping force, easily leading to workpiece displacement and wobbling during coating, thus affecting the quality and uniformity of the coating. Furthermore, to achieve multi-faceted electrophoretic coating of the workpiece, the fixture needs to have a rotation function. However, traditional rotary fixtures are prone to offset and wobbling during rotation, failing to guarantee the stability and accuracy of workpiece rotation. This not only affects the uniformity of coating distribution on different surfaces of the workpiece but may also cause the workpiece to collide with other equipment, resulting in equipment damage or workpiece scrap. Therefore, a new type of electrophoretic coating fixture needs to be designed. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for electrophoretic coating, which solves the technical problem that traditional fixtures are difficult to stably and reliably clamp workpieces of different shapes and sizes during the electrophoretic coating process, and are prone to problems such as insecure clamping and workpiece displacement, which affect the coating quality. The present invention achieves the purpose of improving the quality of electrophoretic coating and enhancing the versatility of the fixture.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for electrophoretic coating, comprising a mounting plate, a connecting plate disposed below the mounting plate, four sets of guide rods fixedly mounted on the top of the connecting plate, located at the four corners and movably passing through the top of the mounting plate, the guide rods extending above the mounting plate, and a limiting block fixedly mounted on the top of the guide rods; an adjusting hydraulic cylinder fixedly mounted on the top of the mounting plate, the connecting end of the adjusting hydraulic cylinder being fixedly connected to a mounting block via a telescopic rod, and a protective sleeve fixedly mounted on the bottom of the mounting block; a rotating clamping assembly disposed below and on the outside of the connecting plate; the rotating clamping assembly comprising: a rotating part disposed above and on the outside of the connecting plate; and a clamping part disposed below the connecting plate and below the rotating part.

[0006] Preferably, the rotating part includes: a motor, which is fixedly installed on the top of the inner wall of the protective sleeve and is positioned above the connecting plate; the output end of the motor is provided with a mounting column through a coupling, and the mounting column passes through the connecting plate and extends to the bottom of the connecting plate; a support plate is fixedly installed at the bottom of the mounting column, and a fixing frame is fixedly installed at the bottom of the support plate.

[0007] Preferably, the outer wall of the fixed frame is fixedly installed with connecting guide blocks, and there are two sets of them. An arc-shaped guide plate is provided on the outer side of the connecting guide block, and the arc-shaped guide plate is fixedly installed on the outer wall of the connecting plate. There are two sets of them, which are symmetrically arranged. A semi-circular arc-shaped groove is opened at the bottom of the arc-shaped guide plate, and the connecting guide block is slidably connected with the semi-circular arc-shaped groove.

[0008] Preferably, the clamping part includes: a fixing column, which is fixedly installed at the bottom of the support plate; a spherical gear is sleeved on the outer wall of the fixing column through a bearing, and an adjusting rack is meshed on the outer wall of the spherical gear, and there are two sets of them arranged diagonally symmetrically; a limiting strip is provided on the outer side of the adjusting rack, and the limiting strip is fixedly installed on the inner walls of both sides of the fixed frame.

[0009] Preferably, the inner sidewall of the limiting strip is provided with a sliding groove, and a slider is slidably connected inside the sliding groove. The slider is connected to the outer wall of the adjusting rack. A movable plate is fixedly installed on the outer end face of the adjusting rack. A guide and reinforcing strip is provided below the movable plate, and the guide and reinforcing strip is fixedly installed at the bottom of the fixed frame. There are two sets of guide and reinforcing strips, which are arranged symmetrically.

[0010] Preferably, the outer wall of the guide reinforcement strip is slidably connected to a sliding seat, and the top of the sliding seat is fixedly connected to the bottom of the moving plate. There are two sets of these sliding seats, arranged symmetrically. Telescopic hydraulic cylinders are provided between the guide reinforcement strips, and the telescopic hydraulic cylinders are fixedly installed at the bottom of the fixed frame through a connecting plate. There are two sets of these telescopic hydraulic cylinders.

[0011] Preferably, the connecting end of the telescopic hydraulic cylinder is fixedly connected to the inner wall of the sliding seat via a piston rod, a triangular mounting bracket is fixedly installed at the bottom of the sliding seat, and a clamping alignment plate is fixedly installed on the inner wall of the triangular mounting bracket.

[0012] Preferably, the inner sidewall of the clamping alignment plate is provided with evenly spaced circular mounting grooves, and a spring is fixedly installed on the inner wall of the circular mounting groove. A deformable clamping column is fixedly installed on the other end of the spring, and the deformable clamping column can clamp workpieces of different shapes.

[0013] This utility model provides a fixture for electrophoretic coating. It has the following beneficial effects:

[0014] (1) This utility model is equipped with a motor-driven mounting column to drive the support plate and the fixed frame to rotate, so as to realize the flexible adjustment of the clamping angle of the workpiece and meet the needs of multi-sided electrophoretic coating. The connecting guide slider on the outer wall of the fixed frame and the semi-circular arc groove of the arc guide plate on the outer wall of the connecting plate are slidably connected to provide precise guidance for the rotation process, ensuring the stability and accuracy of rotation, avoiding rotational deviation or shaking, and achieving the effect of improving the stability and consistency of coating quality.

[0015] (2) This utility model is equipped with a telescopic hydraulic cylinder to drive the sliding seat to slide along the guide reinforcement strip, which drives the adjusting rack to mesh with the round gear to realize the synchronous movement of the two sets of clamping alignment plates in opposite directions or in opposite directions. It can adapt to workpieces of different widths. The limiting strip and the adjusting rack are connected to the slider through the slide groove, which provides precise guidance and stable support for the linear movement of the adjusting rack. The guide reinforcement strip provides a stable track for the sliding seat and the moving plate, which enhances the overall structural strength and stability of the clamping part and reduces the risk of clamping failure caused by vibration or external force. At the same time, the clamping column on the inner side wall of the clamping alignment plate can adapt to the deformation of the workpiece surface shape under the action of the spring, ensuring stable and reliable clamping and avoiding displacement or shaking of the workpiece during electrophoresis, thereby improving the coating quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the structure of a fixture for electrophoretic coating according to this utility model;

[0018] Figure 3This is a top view of the structure of the adjustment part of the clamp for electrophoretic coating according to this utility model;

[0019] Figure 4 This is a side view of the clamping structure of a fixture for electrophoretic coating according to this utility model.

[0020] In the diagram: 1 Mounting plate, 2 Connecting plate, 3 Guide rod, 4 Limiting block, 5 Adjusting hydraulic cylinder, 6 Mounting block, 61 Protective sleeve, 7 Rotary clamping assembly, 71 Rotating part, 711 Motor, 712 Mounting column, 713 Support plate, 714 Fixed frame, 715 Connecting guide block, 716 Arc-shaped guide plate, 72 Clamping part, 721 Fixed column, 722 Circular gear, 723 Adjusting rack, 724 Limiting strip, 725 Slide groove, 726 Moving plate, 727 Guide reinforcing strip, 728 Sliding seat, 729 Telescopic hydraulic cylinder, 7210 Triangular mounting bracket, 7211 Clamping alignment plate, 7212 Circular mounting groove, 7213 Spring, 7214 Deformable clamping column. Detailed Implementation

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

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0023] In the electrophoretic coating process, workpieces come in various shapes and sizes, making it difficult for traditional fixtures to stably and reliably hold workpieces of different shapes. This often results in insecure clamping, workpiece displacement, and other issues that affect coating quality. Therefore, this invention provides a preferred embodiment of a fixture for electrophoretic coating, for example... Figure 1-4As shown: A fixture for electrophoretic coating includes a mounting plate 1, a connecting plate 2 disposed below the mounting plate 1, and four sets of guide rods 3 fixedly mounted on the top of the connecting plate 2, located at the four corners and movably passing through the top of the mounting plate 1. The guide rods 3 extend to the top of the mounting plate 1, and limit blocks 4 are fixedly mounted on the top of the guide rods 3. An adjusting hydraulic cylinder 5 is fixedly mounted on the top of the mounting plate 1, and the connecting end of the adjusting hydraulic cylinder 5 is fixedly connected to a mounting block 6 via a telescopic rod. A protective sleeve 61 is fixedly mounted on the bottom of the mounting block 6. A rotating clamping assembly 7 is disposed below and on the outside of the connecting plate 2. The rotating clamping assembly 7 includes: a rotating part 71 disposed above and on the outside of the connecting plate 2; and a clamping part 72 disposed below the connecting plate 2 and below the rotating part 71.

[0024] The rotating part 71 includes: a motor 711, which is fixedly installed on the top of the inner wall of the protective sleeve 61 and is located above the connecting plate 2; the output end of the motor 711 is provided with a mounting post 712 through a coupling, and the mounting post 712 passes through the connecting plate 2 and extends to the bottom of the connecting plate 2; a support plate 713 is fixedly installed at the bottom of the mounting post 712, and a fixing frame 714 is fixedly installed at the bottom of the support plate 713.

[0025] The outer wall of the fixed frame 714 is fixedly installed with connecting guide blocks 715, and there are two sets of them. The outer side of the connecting guide blocks 715 is provided with arc-shaped guide plates 716, and the arc-shaped guide plates 716 are fixedly installed on the outer wall of the connecting plate 2. There are two sets of them, which are symmetrically arranged. The bottom of the arc-shaped guide plate 716 is provided with a semi-circular arc-shaped groove, and the connecting guide blocks 715 are slidably connected with the semi-circular arc-shaped groove.

[0026] Furthermore, in this embodiment, a motor 711 drives the mounting column 712 to rotate the support plate 713 and the fixed frame 714, thereby enabling flexible adjustment of the workpiece clamping angle to meet the requirements of multi-sided electrophoretic coating. In conjunction with the connecting guide slider 715 on the outer wall of the fixed frame 714 and the semi-circular arc-shaped groove of the arc-shaped guide plate 716 on the outer wall of the connecting plate 2, precise guidance is provided for the rotation process, ensuring rotational stability and accuracy, and avoiding rotational deviation or shaking. Example

[0027] Please see Figures 1-4Furthermore, based on Embodiment 1, the clamping part 72 includes: a fixing post 721, which is fixedly installed at the bottom of the support plate 713; the outer wall of the fixing post 721 is fitted with a spur gear 722 through a bearing, and the outer wall of the spur gear 722 is meshed with an adjusting rack 723, which consists of two sets arranged diagonally symmetrically; the outer side of the adjusting rack 723 is provided with a limiting strip 724, and the limiting strip 724 is fixedly installed on the inner walls of both sides of the fixed frame 714.

[0028] The inner sidewall of the limiting strip 724 is provided with a sliding groove 725. A slider is slidably connected inside the sliding groove 725. The slider is fixedly installed on the outer wall of the adjusting rack 723 and the outer end face of the adjusting rack 723. A guide and reinforcing strip 727 is provided below the moving plate 726. The guide and reinforcing strip 727 is fixedly installed at the bottom of the fixed frame 714. There are two sets in total, which are arranged symmetrically.

[0029] The outer wall of the guide reinforcement strip 727 is slidably connected with a sliding seat 728, and the top of the sliding seat 728 is fixedly connected to the bottom of the moving plate 726. There are two sets in total, arranged symmetrically. A telescopic hydraulic cylinder 729 is provided between the guide reinforcement strips 727, and the telescopic hydraulic cylinder 729 is fixedly installed at the bottom of the fixed frame 714 through a connecting plate. There are two sets in total.

[0030] The connecting end of the telescopic hydraulic cylinder 729 is fixedly connected to the inner wall of the sliding seat 728 via the piston rod. A triangular mounting bracket 7210 is fixedly installed at the bottom of the sliding seat 728, and a clamping and aligning plate 7211 is fixedly installed on the inner wall of the triangular mounting bracket 7210.

[0031] The inner sidewall of the clamping alignment plate 7211 is provided with circular mounting grooves 7212 at equal intervals. A spring 7213 is fixedly installed on the inner wall of the circular mounting groove 7212. A deformable clamping column 7214 is fixedly installed on the other end of the spring 7213. The deformable clamping column 7214 can clamp workpieces of different shapes.

[0032] Furthermore, in this embodiment, a telescopic hydraulic cylinder 729 drives the sliding seat 728 to slide along the guide reinforcement plate 727, which in turn drives the adjusting rack 723 to mesh with the spur gear 722 to achieve synchronous or opposite movement of the two sets of clamping alignment plates 7211. This can accommodate workpieces of different widths. The limiting plate 724 and the adjusting rack 723 are slidably connected to the slider through the slide groove 725, providing precise guidance and stable support for the linear movement of the adjusting rack 723. The guide reinforcement plate 727 provides a stable track for the sliding of the sliding seat 728 and the moving plate 726, enhancing the overall structural strength and stability of the clamping part and reducing the risk of clamping failure due to vibration or external force. At the same time, the deformable clamping column 7214 on the inner side wall of the clamping alignment plate 7211 can adaptively deform according to the surface shape of the workpiece under the action of the spring 7213, ensuring stable and reliable clamping and preventing the workpiece from shifting or shaking during electrophoresis.

[0033] In use, the fixture is mounted on the mounting plate 1 as the mounting reference. The connecting plate 2 is movably passed through the top of the mounting plate 1 and extends above it via four sets of guide rods 3 located at the corners. Limiting blocks 4 are fixed to the top of the guide rods 3 to prevent the connecting plate 2 from detaching from the guide rods 3. The adjusting hydraulic cylinder 5 mounted on the top of the mounting plate 1 is connected to the mounting block 6 via a telescopic rod. The bottom of the mounting block 6 is fixed with a protective sleeve 61. When the adjusting hydraulic cylinder 5 is working, it can drive the mounting block 6 and the protective sleeve 61 to rise and fall via the telescopic rod, thereby causing the connecting plate 2 to move up and down along the guide rods 3, realizing the adjustment of the fixture height to adapt to different sized workpieces or different coating process requirements.

[0034] Furthermore, in the rotating part 71, the motor 711 is fixedly installed on the top of the inner wall of the protective sleeve 61 and above the connecting plate 2. Its output end is connected to the mounting column 712 via a coupling. The mounting column 712 extends through the connecting plate 2 and downwards, with a support plate 713 fixed at its bottom. A fixing frame 714 is then fixed to the bottom of the support plate 713. When the motor 711 starts, its output end rotates, driving the mounting column 712 to rotate via the coupling, thereby causing the support plate 713 and the fixing frame 714 to rotate together. Two sets of connecting guide sliders 715 are symmetrically installed on the outer wall of the fixing frame 714, and two sets of arc-shaped guide plates 716 are symmetrically fixed on the outer wall of the connecting plate 2. The bottom of the arc-shaped guide plate 716 has a semi-circular arc-shaped groove, and the connecting guide slider 715 slides in this groove. When the fixing frame 714 rotates with the motor 711, the connecting guide slider 715 slides along the semi-circular arc-shaped groove, providing guidance for the rotation process, ensuring smooth and accurate rotation, avoiding deviation or shaking, ensuring the accurate position of the workpiece during rotation, and improving the quality of electrophoretic coating.

[0035] Furthermore, the clamping part 72 is located below the connecting plate 2 and below the rotating part 71. The fixing column 721 is fixed to the bottom of the support plate 713, and its outer wall is fitted with a spherical gear 722 through a bearing. The outer wall of the spherical gear 722 meshes with two sets of diagonally symmetrically arranged adjusting racks 723. The outer side of the adjusting racks 723 is provided with limiting plates 724 fixed to the inner walls of both sides of the fixing frame 714. The inner side wall of the limiting plate 724 has a sliding groove 725, and a slider is slidably connected in the sliding groove 725. The slider is fixed to the outer wall of the adjusting rack 723, and the outer end face of the adjusting rack 723 is fixed with a moving plate 726. Two sets of guide and reinforcing plates 727 are symmetrically arranged below the moving plate 726 and fixed to the bottom of the fixing frame 714. The outer wall of the guide and reinforcing plate 727 is slidably connected to a sliding seat 728, and the top of the sliding seat 728 is fixed to the bottom of the moving plate 726. Two sets of telescopic hydraulic cylinders 729 are set between the two sets of guide and reinforcement strips 727 and are fixed to the bottom of the fixed frame 714 by connecting plates. The piston rod of the connecting end of the telescopic hydraulic cylinder 729 is fixed to the inner wall of the sliding seat 728. A triangular mounting bracket 7210 is fixed to the bottom of the sliding seat 728, and a clamping alignment plate 7211 is fixed to the inner wall of the triangular mounting bracket 7210.

[0036] When the telescopic hydraulic cylinder 729 operates, the piston rod extends and retracts, pushing the sliding seat 728 to slide along the guide and reinforcing strip 727, which in turn moves the moving plate 726, causing the adjusting rack 723 to move linearly along the groove 725 of the limiting strip 724. Since the adjusting rack 723 meshes with the spur gear 722, the movement of the adjusting rack 723 drives the spur gear 722 to rotate. However, due to the action of the fixed column 721 and the bearing, the spur gear 722 itself does not shift, but instead converts the rotational motion into the linear motion of the adjusting rack 723, achieving synchronous or opposite movement of the two sets of clamping alignment plates 7211 to accommodate workpieces of different widths. The inner wall of the clamping alignment plate 7211 has evenly spaced circular mounting grooves 7212, with a spring 7213 fixed to the inner wall. The other end of the spring 7213 is fixed to a deformable clamping column 7214. During clamping, the deformable clamping column 7214 contacts the workpiece surface, and the spring 7213 is compressed by force. The deformable clamping column 7214 adapts to the shape of the workpiece surface to ensure stable and reliable clamping, avoid the workpiece from shifting or shaking during electrophoresis, and ensure coating accuracy and quality.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixture for electrophoretic coating, comprising a mounting plate (1), characterized in that: A connecting plate (2) is provided below the mounting plate (1). A guide rod (3) is fixedly installed on the top of the connecting plate (2), and there are four sets of them, which are located at the four corners and move through the top of the mounting plate (1). The guide rod (3) extends to the top of the mounting plate (1). A limit block (4) is fixedly installed on the top of the guide rod (3). An adjusting hydraulic cylinder (5) is fixedly installed on the top of the mounting plate (1). The connecting end of the adjusting hydraulic cylinder (5) is fixedly connected to the mounting block (6) through a telescopic rod. A protective sleeve (61) is fixedly installed on the bottom of the mounting block (6). A rotating clamping assembly (7) is disposed below and on the outside of the connecting plate (2); The rotary clamping assembly (7) includes: Rotating part (71) is disposed above and on the outside of the connecting plate (2); The clamping part (72) is located below the connecting plate (2) and below the rotating part (71).

2. The fixture for electrophoretic coating according to claim 1, characterized in that: The rotating part (71) includes: The motor (711) is fixedly installed on the top of the inner wall of the protective sleeve (61), and the motor (711) is located above the connecting plate (2); The output end of the motor (711) is provided with a mounting column (712) through a coupling, and the mounting column (712) passes through the connecting plate (2) and extends to the bottom of the connecting plate (2). A support plate (713) is fixedly installed at the bottom of the mounting column (712), and a fixed frame (714) is fixedly installed at the bottom of the support plate (713).

3. The fixture for electrophoretic coating according to claim 2, characterized in that: The outer wall of the fixed frame (714) is fixedly installed with connecting guide blocks (715), and there are two sets of them. The outer side of the connecting guide blocks (715) is provided with arc-shaped guide plates (716), and the arc-shaped guide plates (716) are fixedly installed on the outer wall of the connecting plate (2). There are two sets of them, which are symmetrically arranged. The bottom of the arc-shaped guide plate (716) is provided with a semi-circular arc-shaped groove, and the connecting guide blocks (715) are slidably connected with the semi-circular arc-shaped groove.

4. The fixture for electrophoretic coating according to claim 1, characterized in that: The clamping portion (72) includes: A fixing post (721) is fixedly installed on the bottom of the support plate (713); The outer wall of the fixed column (721) is fitted with a spur gear (722) through a bearing. The outer wall of the spur gear (722) is fitted with an adjusting rack (723), and there are two sets of them arranged diagonally symmetrically. The outer side of the adjusting rack (723) is provided with a limiting plate (724), and the limiting plate (724) is fixedly installed on the inner walls of both sides of the fixed frame (714).

5. A fixture for electrophoretic coating according to claim 4, characterized in that: The inner sidewall of the limiting strip (724) is provided with a sliding groove (725), and a slider is slidably connected inside the sliding groove (725). The slider is connected to the outer wall of the adjusting rack (723). A movable plate (726) is fixedly installed on the outer end face of the adjusting rack (723). A guide and reinforcing strip (727) is provided below the movable plate (726), and the guide and reinforcing strip (727) is fixedly installed at the bottom of the fixed frame (714). There are two sets in total, which are symmetrically arranged.

6. A fixture for electrophoretic coating according to claim 5, characterized in that: The outer wall of the guide reinforcement strip (727) is slidably connected to a sliding seat (728), and the top of the sliding seat (728) is fixedly connected to the bottom of the moving plate (726). There are two sets in total, arranged symmetrically. A telescopic hydraulic cylinder (729) is provided between the guide reinforcement strips (727), and the telescopic hydraulic cylinder (729) is fixedly installed at the bottom of the fixed frame (714) through a connecting plate. There are two sets in total.

7. A fixture for electrophoretic coating according to claim 6, characterized in that: The connecting end of the telescopic hydraulic cylinder (729) is fixedly connected to the inner wall of the sliding seat (728) through the piston rod. A triangular mounting bracket (7210) is fixedly installed at the bottom of the sliding seat (728), and a clamping alignment plate (7211) is fixedly installed on the inner wall of the triangular mounting bracket (7210).

8. A fixture for electrophoretic coating according to claim 7, characterized in that: The inner sidewall of the clamping alignment plate (7211) is provided with circular mounting grooves (7212) at equal intervals. A spring (7213) is fixedly installed on the inner wall of the circular mounting groove (7212). A deformable clamping column (7214) is fixedly installed on the other end of the spring (7213). The deformable clamping column (7214) can clamp workpieces of different shapes.

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