Buckle assembling equipment for lamp machining

Abstract

The utility model belongs to the field of assembling equipment, and particularly relates to buckle assembling equipment for lamp processing, which comprises a first moving structure, a mounting structure, a scanning structure, a second moving structure, a lifting structure, a pressing structure and a clamping mechanism, and the clamping mechanism is in threaded connection with the pressing structure. The first moving structure drives the mounting structure, the scanning structure, the second moving structure, the lifting structure, the pressing structure and the clamping mechanism to move along the X axis, the second moving structure is used for driving the lifting structure, the pressing structure and the clamping mechanism to move along the Y axis, and the lifting structure is used for driving the pressing structure and the clamping mechanism to move along the Z axis. The clamping mechanism can be adjusted in a multi-angle mode, the downward pressing structure is used for driving the clamping mechanism to be opened and closed, the clamping mechanism is connected to the downward pressing structure through threads, the size of the clamping end can be adjusted by rotating the clamping mechanism, and therefore adjustment can be conveniently conducted according to buckle parts of different sizes.

Description

Technical Field

[0001] The utility model belongs to the field of assembly equipment, and in particular relates to a buckle assembly equipment for lamp processing. Background Art

[0002] Before assembling the lamp, the clip parts need to be transferred to the lamp assembly to be assembled through a clamping device, and then assembled by external machinery or manually.

[0003] However, the current clamping device cannot be quickly adjusted according to the size of the buckle component, and after the position of the buckle component is offset, the clamping device cannot detect and then adjust its own position. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a snap-on assembly device for lamp processing, which can drive the clamping mechanism to move along the X-axis, the Y-axis, or the Z-axis through a first moving structure, a second moving structure and a lifting structure, and scan the position of the snap-on components through a scanning structure, and then the clamping mechanism can be well adjusted through the first moving structure, the second moving structure and the lifting structure, and the clamping mechanism is connected to the pressing structure through a thread, and the size of the clamping end can be adjusted by rotating the clamping mechanism, so that it is convenient to adjust according to snap-on components of different sizes.

[0005] According to an embodiment of the utility model, a buckle assembly device for lamp processing includes a first moving structure, a mounting structure, a scanning structure, a second moving structure, a lifting structure, a pressing structure and a clamping mechanism;

[0006] The mounting structure is mounted on the moving mechanism, the scanning structure is mounted on the mounting structure, the second moving structure is mounted on the mounting structure, the lifting structure is mounted on the first moving structure, the pressing structure is mounted on the lifting mechanism, and the clamping mechanism is threadedly connected to the pressing structure;

[0007] Among them, the first moving structure is used to adjust the position of the clamping mechanism on the X-axis, the scanning structure is used to scan the external material, the second moving structure is used to adjust the position of the clamping mechanism on the Y-axis, the lifting structure is used to adjust the position of the clamping mechanism on the Z-axis, and the pressing structure is used to control the opening and closing of the clamping mechanism.

[0008] According to a snap-on assembly device for lamp processing according to an embodiment of the utility model, a mounting structure, a scanning structure, a second movable structure, a lifting structure, a pressing structure and a clamping mechanism are driven to move along the X-axis by a first movable structure, the second movable structure is used to drive the lifting structure, the pressing structure and the clamping mechanism to move along the Y-axis, the lifting structure is used to drive the pressing structure and the clamping mechanism to move along the Z-axis, so that the clamping mechanism can be adjusted at multiple angles, the position of the snap-on components is confirmed by the scanning mechanism and then adjusted, and the scanning mechanism can also be adjusted on the mounting structure, the pressing structure is used to drive the clamping mechanism to open and close, and the clamping mechanism is connected to the pressing structure by a thread, and the size of the clamping end can be adjusted by rotating the clamping mechanism, so that it is convenient to adjust according to snap-on components of different sizes.

[0009] According to some embodiments of the utility model, the first movable structure includes two slide rails, a sliding block and a first cylinder, the sliding block is symmetrically installed in the two slide rails, the first cylinder is symmetrically fixedly installed at one end of the two slide rails, and the output end of the first cylinder is fixedly connected to one side of the sliding block.

[0010] According to some embodiments of the present utility model, the installation structure includes a sliding frame, the sliding frame is fixedly arranged on the two sliding blocks, and a sliding groove is formed on the sliding frame.

[0011] According to some embodiments of the utility model, the scanning structure includes a guide rail, a slider and a positioning camera, the guide rail is fixedly arranged on one side of the sliding frame, the slider is slidably clamped on the guide rail, and the positioning camera is fixedly connected to the slider and is located on one side of the guide rail.

[0012] According to some embodiments of the utility model, the second movable structure includes a servo motor, a screw rod and a movable block, the servo motor is installed on one side of the slide slot, the screw rod is rotatably installed in the slide slot, one end of the screw rod passes through the slide slot and is fixedly connected to the output shaft of the servo motor, a limiting portion is provided on the movable block, the movable block is movably clamped in the slide slot by the limiting portion, and the movable block is sleeved on the screw rod and is threadedly connected to the screw rod.

[0013] According to some embodiments of the present utility model, the lifting structure includes a second cylinder, and the second cylinder is fixedly arranged at the bottom of the limiting portion.

[0014] According to some embodiments of the present utility model, the pressing structure includes a third cylinder and a threaded portion, the third cylinder is fixedly arranged on the output end of the second cylinder, and the threaded portion is arranged on the periphery of the bottom of the third cylinder.

[0015] According to some embodiments of the utility model, the clamping mechanism includes a mounting shell and a clamping arm structure, the mounting shell is provided with a cavity, the cavity is threadedly connected to the third cylinder through the threaded portion, and the clamping arm structure is mounted on the mounting shell.

[0016] According to some embodiments of the utility model, the clamp arm structure includes a spring, a top block and a plurality of clamp arm parts, one end of the spring is fixedly arranged at the bottom of the hollow chamber, the top block is installed at an end of the spring away from the hollow chamber, the top block abuts against the clamp arm part, and a plurality of the clamp arm parts are installed on the mounting shell.

[0017] According to some embodiments of the utility model, the clamp arm member includes a clamp arm body, the clamp arm body is rotatably mounted on the mounting shell, the mounting shell is provided with a movable groove adapted to the shape of the clamp arm body, the movable groove is communicated with the cavity chamber, one end of the clamp arm body is provided with a fixing block, the clamp arm body is provided with an arc portion and a clamping portion, the arc portion is connected to the fixing block, and the clamping portion is connected to a side of the arc portion away from the fixing block;

[0018] The top block is pressed tightly against the bottom of the fixed block, and the fixed block is pressed tightly against the bottom of the output end of the third cylinder.

[0019] The above technical solution provides a buckle assembly device for lamp processing, which has the following features:

[0020] Beneficial effects:

[0021] The first movable structure drives the mounting structure, the scanning structure, the second movable structure, the lifting structure, the pressing structure and the clamping mechanism to move along the X-axis. The second movable structure is used to drive the lifting structure, the pressing structure and the clamping mechanism to move along the Y-axis. The lifting structure is used to drive the pressing structure and the clamping mechanism to move along the Z-axis, so that the clamping mechanism can be adjusted at multiple angles. The scanning mechanism is used to confirm the cheap position of the buckle component and then adjust it, and the scanning mechanism can also be adjusted on the mounting structure. The pressing structure is used to drive the clamping mechanism to open and close, and the clamping mechanism is connected to the pressing structure by a thread. The size of the clamping end can be adjusted by rotating the clamping mechanism, so that it is convenient to adjust according to buckle components of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2 for Figure 1 A magnified image of point A;

[0025] Figure 3 for Figure 1 A magnified view of point B;

[0026] Figure 4 This is a schematic diagram of the connection between the housing and the spring installed in the utility model;

[0027] Figure 5 It is a structural schematic diagram of the clamp arm member of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the downward pressing structure of the utility model.

[0029] The markings in the figure are as follows:

[0030] 100. A first mobile structure;

[0031] 110, slide rail; 120, slide block; 130, first cylinder;

[0032] 200. Installation structure;

[0033] 210, sliding frame; 211, sliding slot;

[0034] 300, scanning structure;

[0035] 310, guide rail; 320, slider; 330, positioning camera;

[0036] 400, second mobile structure;

[0037] 410, servo motor; 420, lead screw; 430, movable block; 431, limiter;

[0038] 500. Lifting structure;

[0039] 510, second cylinder;

[0040] 600, downward pressure structure;

[0041] 610, third cylinder; 620, threaded portion;

[0042] 700, clamping mechanism;

[0043] 710, installing the housing; 711, hollow chamber;

[0044] 720, clamp arm structure;

[0045] 721, spring; 722, top block;

[0046] 723. Clamp arm piece; 724. Clamp arm body;

[0047] 725, movable groove; 726, fixed block; 727, arc-shaped portion; 728, clamping portion. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0051] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0052] Combination Figures 1 to 6 As shown, one embodiment of the utility model provides a buckle assembly device for lamp processing, including a first moving structure 100, a mounting structure 200, a scanning structure 300, a second moving structure 400, a lifting structure 500, a pressing structure 600 and a clamping mechanism 700;

[0053] The mounting structure 200 is mounted on the moving mechanism, the scanning structure 300 is mounted on the mounting structure 200, the second moving structure 400 is mounted on the mounting structure 200, the lifting structure 500 is mounted on the first moving structure 100, the pressing structure 600 is mounted on the lifting mechanism, and the clamping mechanism 700 is threadedly connected to the pressing structure 600;

[0054] Among them, the first movable structure 100 is used to adjust the position of the clamping mechanism 700 on the X-axis, the scanning structure 300 is used to scan external materials, the second movable structure 400 is used to adjust the position of the clamping mechanism 700 on the Y-axis, the lifting structure 500 is used to adjust the position of the clamping mechanism 700 on the Z-axis, and the pressing structure 600 is used to control the opening and closing of the clamping mechanism 700.

[0055] In this embodiment, the first movable structure 100 drives the installation structure 200, the scanning structure 300, the second movable structure 400, the lifting structure 500, the pressing structure 600 and the clamping mechanism 700 to move along the X-axis. The second movable structure 400 is used to drive the lifting structure 500, the pressing structure 600 and the clamping mechanism 700 to move along the Y-axis. The lifting structure 500 is used to drive the pressing structure 600 and the clamping mechanism 700 to move along the Z-axis, so that the clamping mechanism 700 can be adjusted at multiple angles. The scanning mechanism is used to confirm the cheap position of the buckle component and then adjust it, and the scanning mechanism can also be adjusted on the installation structure 200. The pressing structure 600 is used to drive the clamping mechanism 700 to open and close, and the clamping mechanism 700 is connected to the pressing structure 600 by threads. The size of the clamping end can be adjusted by rotating the clamping mechanism 700, so that it is convenient to adjust according to buckle components of different sizes.

[0056] It should be noted that the size of the clamping end can be adjusted by rotating the clamping mechanism 700. The clamping mechanism 700 continuously moves upward after rotation, thereby continuously squeezing the clamping end of the clamping mechanism 700, thereby changing the clamping width when the clamping end is not clamped, which is convenient for adjustment according to snap-on components of different sizes.

[0057] Furthermore, the scanning structure 300 can be adjusted according to the position of the external buckle component, so that the buckle component can be easily scanned.

[0058] In one embodiment, the first movable structure 100 includes two slide rails 110, a sliding block 120 and a first cylinder 130. The sliding block 120 is symmetrically installed in the two slide rails 110. The first cylinder 130 is symmetrically fixedly installed at one end of the two slide rails 110. The output end of the first cylinder 130 is fixedly connected to one side of the sliding block 120.

[0059] In this embodiment, the first cylinder 130 is activated to drive the two sliding blocks 120 to move simultaneously. The sliding blocks 120 are limited by the slide rails 110 and slide in the slide rails 110. When the sliding blocks 120 move, they drive the mounting structure 200 to move simultaneously.

[0060] In one embodiment, the installation structure 200 includes a sliding frame 210 . The sliding frame 210 is fixedly disposed on the two sliding blocks 120 . A sliding groove 211 is formed on the sliding frame 210 .

[0061] In this embodiment, the sliding block 120 moves and drives the sliding frame 210 to move, and the sliding groove 211 is used to carry and install the second moving structure 400 .

[0062] In one embodiment, the scanning structure 300 includes a guide rail 310, a slider 320 and a positioning camera 330. The guide rail 310 is fixedly disposed on one side of the sliding frame 210, the slider 320 is slidably mounted on the guide rail 310, and the positioning camera 330 is fixedly connected to the slider 320 and is located on one side of the guide rail 310.

[0063] In this embodiment, the positioning camera 330 is used to locate the position of the external snap-on component, thereby adjusting the first movable structure 100 and the second movable structure 400 accordingly, facilitating the movement of the clamping mechanism 700 to the top of the external snap-on component, and the slider 320 facilitates the movement of the positioning camera 330 on the guide rail 310.

[0064] It should be noted that the positions of general snap-in components on the transmission line are consistent, but there may be snap-in components that are offset in position, so the position of the snap-in components is confirmed by positioning the camera 330. It is explained here that the first movable structure 100 and the second movable structure 400 are started and the clamping mechanism 700 is adjusted as long as the snap-in components are offset.

[0065] Further, it is understandable that the positioning camera 330 is easily affected by the first movable structure 100 and the second movable structure 400 when it is on the sliding frame 210, and is prone to displacement over time, so a locking block can be provided on the positioning camera 330 to lock the positioning camera 330, and this is expanded upon.

[0066] In one embodiment, the second movable structure 400 includes a servo motor 410, a screw rod 420 and a movable block 430. The servo motor 410 is installed on one side of the slide slot 211. The screw rod 420 is rotatably installed in the slide slot 211. One end of the screw rod 420 passes through the slide slot 211 and is fixedly connected to the output shaft of the servo motor 410. A limiting portion 431 is provided on the movable block 430. The movable block 430 is movably clamped in the slide slot 211 through the limiting portion 431, and the movable block 430 is sleeved on the screw rod 420 and is threadedly connected to the screw rod 420.

[0067] In this embodiment, the servo motor 410 drives the screw rod 420 to rotate. After the screw rod 420 rotates, it is threadedly connected to the movable block 430 through the screw rod 420, thereby driving the movable block 430 to move. The servo motor 410 can rotate forward and reverse, that is, it can drive the movable block 430 to move left and right, thereby driving the downward pressing structure 600 and the clamping structure to move.

[0068] It should be noted that the limiting portion 431 limits the movable block 430 so that the movable block 430 slides and is locked in the slide groove 211, thereby limiting the movable block 430 when the screw rod 420 rotates, and the movable block 430 can move left and right on the screw rod 420.

[0069] In one embodiment, the lifting structure 500 includes a second cylinder 510 , and the second cylinder 510 is fixedly disposed at the bottom of the limiting portion 431 .

[0070] In this embodiment, the second cylinder 510 drives the pressing structure 600 and the clamping mechanism 700 to rise or fall, so as to facilitate the clamping mechanism 700 to clamp the external buckle components.

[0071] In one embodiment, the pressing structure 600 includes a third cylinder 610 and a threaded portion 620 . The third cylinder 610 is fixedly disposed on the output end of the second cylinder 510 , and the threaded portion 620 is disposed on the periphery of the bottom of the third cylinder 610 .

[0072] In this embodiment, the third cylinder 610 is used to drive the clamping end of the clamping mechanism 700 so that the clamping end clamps the external snap-on component. The clamping mechanism 700 is threadedly connected to the bottom of the third cylinder 610 .

[0073] In one embodiment, the clamping mechanism 700 includes a mounting shell 710 and a clamping arm structure 720 . A cavity 711 is formed on the mounting shell 710 . The cavity 711 is threadedly connected to the third cylinder 610 through the threaded portion 620 . The clamping arm structure 720 is mounted on the mounting shell 710 .

[0074] In this embodiment, the mounting shell 710 is threadedly connected to the bottom of the third cylinder 610. When the mounting shell 710 is continuously rotated, the cavity 711 is squeezed and becomes smaller, so that the size of the clamping end of the clamping arm structure 720 is changed, and external snap-on components of different sizes can be clamped.

[0075] In one embodiment, the clamp arm structure 720 includes a spring 721, a top block 722 and a plurality of clamp arm members 723. One end of the spring 721 is fixedly disposed at the bottom of the cavity 711. The top block 722 is installed at one end of the spring 721 away from the cavity 711. The top block 722 abuts against the clamp arm member 723. The plurality of clamp arm members 723 are installed on the mounting housing 710.

[0076] The clamp arm member 723 includes a clamp arm body 724, the clamp arm body 724 is rotatably mounted on the mounting housing 710, the mounting housing 710 is provided with a movable groove 725 that matches the shape of the clamp arm body 724, the movable groove 725 is communicated with the cavity 711, one end of the clamp arm body 724 is provided with a fixing block 726, the clamp arm body 724 is provided with an arc portion 727 and a clamping portion 728, the arc portion 727 is connected to the fixing block 726, and the clamping portion 728 is connected to the side of the arc portion 727 away from the fixing block 726;

[0077] The push block 722 is pressed against the bottom of the fixing block 726 , and the fixing block 726 is pressed against the bottom of the output end of the third cylinder 610 .

[0078] In this embodiment, the output end of the third cylinder 610 drives the top block 722 and the fixed block 726 to move downward. After the top block 722 moves, it squeezes the spring 721, and the spring 721 is squeezed and becomes compressed. At this time, several clamping arm bodies 724 are in a clamping state. After the third cylinder 610 rises, the top block 722 is subjected to the rebound force of the spring 721, thereby driving the top block 722 to move upward. The top block 722 drives the fixed block 726 to move upward at the same time, thereby resetting the clamping arm body 724, thereby completing the clamping of the external snap-on components.

[0079] It should be noted that after the rotationally installed shell 710, only the opening size of several clamp arm structures 720 is changed, so as to adapt to snap-on components of different sizes, but the clamp arm structure 720 cannot be adjusted to the maximum opening value. If it is adjusted to the maximum value, the clamp arm structure 720 cannot be adjusted, resulting in the clamp arm structure 720 being unable to open. This is explained here.

[0080] The working principle of this utility model:

[0081] The first movable structure 100 drives the mounting structure 200, the scanning structure 300, the second movable structure 400, the lifting structure 500, the pressing structure 600 and the clamping mechanism 700 to move along the X-axis. The second movable structure 400 is used to drive the lifting structure 500, the pressing structure 600 and the clamping mechanism 700 to move along the Y-axis. The lifting structure 500 is used to drive the pressing structure 600 and the clamping mechanism 700 to move along the Z-axis, so that the clamping mechanism 700 can be adjusted at multiple angles. The scanning mechanism is used to confirm the cheap position of the buckle component and then adjust it, and the scanning mechanism can also be adjusted on the mounting structure 200. The pressing structure 600 is used to drive the clamping mechanism 700 to open and close, and the clamping mechanism 700 is connected to the pressing structure 600 by threads. The size of the clamping end can be adjusted by rotating the clamping mechanism 700, so that it is convenient to adjust according to buckle components of different sizes.

[0082] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the paper version and the contents of the drawings of the utility model under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A buckle assembly device for lamp processing, characterized in that: It includes a first moving structure, a mounting structure, a scanning structure, a second moving structure, a lifting structure, a pressing structure and a clamping mechanism; The mounting structure is mounted on the moving structure, the scanning structure is mounted on the mounting structure, the second moving structure is mounted on the mounting structure, the lifting structure is mounted on the first moving structure, the pressing structure is mounted on the lifting structure, and the clamping mechanism is threadedly connected to the pressing structure; Among them, the first moving structure is used to adjust the position of the clamping mechanism on the X-axis, the scanning structure is used to scan the external material, the second moving structure is used to adjust the position of the clamping mechanism on the Y-axis, the lifting structure is used to adjust the position of the clamping mechanism on the Z-axis, and the pressing structure is used to control the opening and closing of the clamping mechanism.

2. A buckle assembly device for lamp processing as claimed in claim 1, characterized in that: The first movable structure includes two slide rails, a sliding block and a first cylinder. The sliding block is symmetrically installed in the two slide rails, and the first cylinder is symmetrically fixedly installed at one end of the two slide rails. The output end of the first cylinder is fixedly connected to one side of the sliding block.

3. A buckle assembly device for lamp processing as claimed in claim 2, characterized in that: The mounting structure comprises a sliding frame, the sliding frame is fixedly arranged on the two sliding blocks, and a sliding groove is provided on the sliding frame.

4. A buckle assembly device for lamp processing as claimed in claim 3, characterized in that: The scanning structure includes a guide rail, a slider and a positioning camera. The guide rail is fixedly arranged on one side of the sliding frame. The slider is slidably clamped on the guide rail. The positioning camera is fixedly connected to the slider and is located on one side of the guide rail.

5. The buckle assembly equipment for lamp processing as claimed in claim 3, characterized in that: The second movable structure includes a servo motor, a screw rod and a movable block, the servo motor is installed on one side of the slide slot, the screw rod is rotatably installed in the slide slot, one end of the screw rod passes through the slide slot and is fixedly connected to the output shaft of the servo motor, a limiting portion is provided on the movable block, the movable block is movably clamped in the slide slot by the limiting portion, and the movable block is sleeved on the screw rod and is threadedly connected to the screw rod.

6. The buckle assembly equipment for lamp processing as claimed in claim 5, characterized in that: The lifting structure includes a second cylinder, and the second cylinder is fixedly arranged at the bottom of the limiting part.

7. A buckle assembly device for lamp processing as claimed in claim 6, characterized in that: The pressing structure comprises a third cylinder and a threaded portion. The third cylinder is fixedly arranged on the output end of the second cylinder, and the threaded portion is arranged on the periphery of the bottom of the third cylinder.

8. The buckle assembly equipment for lamp processing as claimed in claim 7, characterized in that: The clamping mechanism comprises a mounting shell and a clamping arm structure. The mounting shell is provided with a cavity, the cavity is threadedly connected to the third cylinder through the threaded portion, and the clamping arm structure is mounted on the mounting shell.

9. The buckle assembly equipment for lamp processing as claimed in claim 8, characterized in that: The clamp arm structure includes a spring, a top block and a plurality of clamp arm parts. One end of the spring is fixedly arranged at the bottom of the cavity. The top block is installed at an end of the spring away from the cavity. The top block abuts against the clamp arm part. The plurality of clamp arm parts are installed on the mounting shell.

10. The buckle assembly equipment for lamp processing according to claim 9, characterized in that: The clamp arm member comprises a clamp arm body, the clamp arm body is rotatably mounted on the mounting shell, the mounting shell is provided with a movable groove adapted to the shape of the clamp arm body, the movable groove is communicated with the cavity chamber, one end of the clamp arm body is provided with a fixing block, the clamp arm body is provided with an arc portion and a clamping portion, the arc portion is connected to the fixing block, and the clamping portion is connected to a side of the arc portion away from the fixing block; The top block is pressed tightly against the bottom of the fixed block, and the fixed block is pressed tightly against the bottom of the output end of the third cylinder.

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