Rotary material taking mechanical arm

Abstract

The invention relates to the technical field of material taking mechanical arms, in particular to a rotary material taking mechanical arm which mainly comprises a base, two rotating arms are arranged above the base, a circular plate is fixedly installed at one end of each rotating arm, a fixing frame is arranged at one end of each circular plate, the rotary material taking mechanical arm further comprises a fixing mechanism and a supporting mechanism, the fixing mechanisms are arranged above the base, and the supporting mechanism is arranged above the base. When a rotating arm drives a clamping plate and a connecting shaft to rotate to a coiled material, the coiled material is sensed, a first air cylinder drives the clamping plate and the connecting shaft to move, the connecting shaft is inserted into a coiled material hole, the clamping plate clamps the two sides of the coiled material, a second air cylinder drives a moving block to move, an inclined groove in the moving block drives an adjusting column to move, and the adjusting column drives a plurality of fixing strips to move. The inner wall of the coiled material hole is supported and fixed by the fixing strip, so that in the process that the spiral arm drives the coiled material to rotate and discharge, the coiled material is not prone to autorotation, it is guaranteed that the spiral arm is not prone to shaking and deviation, the coiled material is more stably conveyed in a rotating mode, and then the discharging accuracy and quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material taking mechanical arm, in particular to a rotary material taking mechanical arm. BACKGROUND

[0002] In the production process of the coiled material, the rotary material taking mechanical arm is needed for intelligent taking and placing of the coiled material. The rotary material taking mechanical arm is an automatic intelligent device designed for carrying coiled material, which has the functions of automatic rotation, grabbing and placing, and is widely used in industrial production, which can significantly improve the carrying efficiency, reduce the labor intensity and ensure the operation safety.

[0003] When taking and placing the coiled material by the rotary material taking mechanical arm, the mechanical arm is rotated to drive the chuck to rotate to the two sides of the coiled material, the connecting shaft on the chuck is inserted into the center hole of the coiled material, and the coiled material is clamped and fixed by the two side extrusion plates, then the mechanical arm drives the coiled material to rotate to the designated position to place the coiled material. However, only by inserting the connecting shaft into the center of the coiled material and clamping the two sides of the coiled material by the extrusion plates, the coiled material is easy to rotate when it is driven to rotate and transfer, which can cause the mechanical arm to shake, further causing the whole to shake and deviate, so that the process of rotary carrying is not stable enough, affecting the accuracy and quality of the placing. SUMMARY

[0004] The purpose of the present application is to provide a rotary material taking mechanical arm to solve the problems in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: A rotary material taking mechanical arm, comprising: a base, two rotary arms are arranged above the base, a circular plate is fixedly installed at one end of the rotary arm, a fixing frame is arranged at one end of the circular plate, a connecting plate is fixedly installed on the side surface of the fixing frame, a clamping plate is connected to the side surface of the connecting plate through a fixed column, and a connecting shaft is fixedly installed on the side surface of the clamping plate, further comprising: A fixing mechanism is arranged above the base, the fixing mechanism comprises a second air cylinder fixedly installed on the side surface of the connecting plate, a moving block and a plurality of fixed bars are arranged inside the connecting shaft, and a limiting column is slidably installed on the side surface of the moving block; A supporting mechanism is arranged above the base, the supporting mechanism comprises an arc-shaped strip arranged on one side of the clamping plate, an arc-shaped plate is arranged below the arc-shaped strip, and two supporting wheels are rotatably installed on the side surface of the arc-shaped plate through a shaft body.

[0006] Preferably, a fixed sleeve and a fixed plate are fixedly installed on the top surface of the base, a motor is fixedly installed on the side surface of the fixed plate, a rotating shaft is fixedly installed on the output end of the motor, one end of the rotating shaft is rotatably penetrated through the side surface of the fixed plate and rotatably connected with the other side surface of the fixed plate through a bearing, the outer wall of the rotating shaft is rotatably connected with the inner wall of the fixed sleeve, and the outer wall of the rotating shaft is fixedly connected with one end of the rotary arm.

[0007] Preferably, the side of the circular plate is fixedly provided with a cylinder one, one end of the cylinder one slidingly penetrates the side of the circular plate and is fixedly connected with the side of the fixed frame, the side of the fixed frame is fixedly provided with a limiting rod, one end of the limiting rod slidingly penetrates the side of the circular plate and extends to the other side of the circular plate.

[0008] Preferably, the connecting shaft is internally provided with a groove body, the inner wall of the groove body is provided with a limiting groove, one end of the fixed strip slidingly penetrates the inner wall of the groove body and extends to the outside of the connecting shaft, the side of the fixed strip is fixedly provided with a limiting plate, and the outer wall of the limiting plate is slidingly connected with the inner wall of the limiting groove.

[0009] Preferably, the outer wall of the moving block is provided with a plurality of mounting grooves, the inner wall of the mounting groove is provided with an inclined groove, the side of the fixed strip is fixedly provided with an adjusting column, and the outer wall of the adjusting column is slidingly connected with the inner wall of the inclined groove.

[0010] Preferably, one end of the cylinder two slidingly penetrates the side of the connecting plate, the side of the clamping plate and the side of the connecting shaft in sequence and is fixedly connected with the side of the moving block, and the limiting column is fixedly connected with the inner walls of the groove body on both sides.

[0011] Preferably, the side of the clamping plate is provided with a T-shaped groove, the inner wall of the T-shaped groove is slidingly provided with a T-shaped block, the side of the T-shaped block is fixedly provided with a connecting strip, and the lower end of the connecting strip is fixedly connected with the side of the arc-shaped strip.

[0012] Preferably, the side of the arc-shaped strip is provided with an arc-shaped groove, the inner wall of one side of the arc-shaped groove is provided with a connecting groove, the top surface of the arc-shaped plate is fixedly provided with a mounting strip, the side of the mounting strip is slidingly connected with the inner walls of the connecting groove and the arc-shaped groove, and the side of the arc-shaped plate is fixedly provided with a counterweight.

[0013] Preferably, the side of the mounting strip is fixedly provided with a sliding shaft, the sliding shaft is fixedly provided with a baffle at both ends, the outer wall of the sliding shaft is slidingly connected with the inner wall of the arc-shaped groove, and the side of the baffle is slidingly connected with the side of the arc-shaped strip.

[0014] Preferably, the side of the connecting strip is fixedly provided with a fixed rod, the output rod of the cylinder two is fixedly provided with a moving plate, the bottom surface of the moving plate is fixedly provided with a vertical plate, the side of the vertical plate is provided with an adjusting groove, the inner wall of the adjusting groove is slidingly connected with the outer wall of the fixed rod, the side of the fixed column is provided with a sliding groove, and one end of the moving plate is slidingly connected with the inner wall of the sliding groove.

[0015] Compared with the prior art, the present application has the following beneficial effects: This invention utilizes a rotating arm to drive a clamping plate and a connecting shaft to rotate to the roll material. Upon sensing the roll material, cylinder one moves the clamping plate and connecting shaft, inserting the connecting shaft into the roll material hole. The clamping plate clamps both sides of the roll material, and cylinder two moves a moving block. The inclined groove on the moving block moves an adjusting column, which in turn moves multiple fixing strips. These fixing strips support and fix the inner wall of the roll material hole. This ensures that the roll material is less prone to self-rotation during the rotating arm's unloading process, preventing the rotating arm from wobbling or shifting. This makes the rotation and handling of the roll material more stable, thereby improving the accuracy and quality of unloading. When the moving block is moved by cylinder two, cylinder two simultaneously moves the moving plate and the vertical plate. The adjusting groove on the vertical plate moves the fixing rod and the connecting strip. The connecting strip moves the arc-shaped strip, the sliding shaft and the mounting strip upward. The mounting strip moves the arc-shaped plate and the support wheel upward. The support wheel supports the bottom of the roll material. When the rotating arm drives the roll material to rotate, under the gravity of the counterweight, the arc-shaped plate, the support wheel, the mounting strip and the sliding shaft slide on the inner wall of the arc-shaped groove, so that the support wheel rolls on the outer wall of the roll material and is always located below the roll material. Thus, the support wheel always supports the bottom of the roll material, making it less likely to fall during the roll material picking and unloading process, improving the stability and safety of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the three-dimensional structure of the rotating arm of the present invention; Figure 3 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing strip of the present invention; Figure 5 This is an exploded view of the three-dimensional structure of the fixing frame of the present invention; Figure 6 This is an exploded view of the three-dimensional structure of the T-shaped block in this invention; Figure 7 This is an exploded view of the three-dimensional structure of the fixing strip of the present invention; Figure 8 This is a cross-sectional schematic diagram of the three-dimensional structure of the connecting shaft of the present invention.

[0017] In the picture: 1. Base; 101. Fixing sleeve; 102. Fixing plate; 103. Motor; 104. Rotating arm; 105. Circular plate; 106. Cylinder 1; 107. Fixing frame; 108. Connecting plate; 109. Fixing column; 110. Clamping plate; 111. Connecting shaft; 112. Limiting rod; 113. Rotating shaft; 2. Fixing mechanism; 201. Groove; 202. Fixing strip; 203. Limiting plate; 204. Limiting groove; 205. Adjusting column; 206. Moving block; 207. Limiting column; 208. Cylinder II; 209. Mounting groove; 210. Inclined groove; 3. Support mechanism; 301. T-slot; 302. T-block; 303. Connecting strip; 304. Arc strip; 305. Arc groove; 306. Connecting groove; 307. Mounting strip; 308. Arc plate; 309. Shaft; 310. Support wheel; 311. Counterweight; 312. Sliding shaft; 313. Baffle; 314. Fixed rod; 315. Moving plate; 316. Vertical plate; 317. Adjustment groove. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] like Figures 1-8 As shown, this application provides a rotary material handling robotic arm, including: a base 1, two rotary arms 104 disposed above the base 1, a circular plate 105 fixedly mounted on one end of each rotary arm 104, a fixing frame 107 disposed on one end of the circular plate 105, a connecting plate 108 fixedly mounted on the side of the fixing frame 107, a clamping plate 110 connected to the side of the connecting plate 108 via a fixing post 109, and a connecting shaft 111 fixedly mounted on the side of the clamping plate 110; and further including: Fixing mechanism 2 is located above base 1. Fixing mechanism 2 includes cylinder 208 fixedly installed on the side of connecting plate 108. A moving block 206 and multiple fixing strips 202 are provided inside the connecting shaft 111. Limiting post 207 is slidably installed through the side of the moving block 206. Specifically, such as Figures 1-8 As shown, a fixed sleeve 101 and a fixed plate 102 are fixedly installed on the top surface of the base 1. A motor 103 is fixedly installed on the side of the fixed plate 102. A rotating shaft 113 is fixedly installed at the output end of the motor 103. One end of the rotating shaft 113 is rotatably connected to the side of the fixed plate 102 via a bearing. The outer wall of the rotating shaft 113 is rotatably connected to the inner wall of the fixed sleeve 101. The outer wall of the rotating shaft 113 is fixedly connected to one end of the rotating arm 104.

[0021] In this embodiment: the fixed sleeve 101 limits the rotation shaft 113, and the motor 103 drives the rotation shaft 113 to rotate, which in turn drives the rotating arm 104 to rotate.

[0022] Specifically, such as Figures 1-8 As shown, a cylinder 106 is fixedly installed on the side of the circular plate 105. One end of the cylinder 106 slides through the side of the circular plate 105 and is fixedly connected to the side of the fixing frame 107. A limit rod 112 is fixedly installed on the side of the fixing frame 107. One end of the limit rod 112 slides through the side of the circular plate 105 and extends to the other side of the circular plate 105.

[0023] In this embodiment: the cylinder 106 drives the fixed frame 107 to move, and the limiting rod 112 limits the fixed frame 107 to make the movement of the fixed frame 107 more stable.

[0024] Specifically, such as Figures 1-8 As shown, a groove 201 is provided inside the connecting shaft 111. A limiting groove 204 is provided on the inner wall of the groove 201. One end of the fixing strip 202 slides through the inner wall of the groove 201 and extends to the outside of the connecting shaft 111. A limiting plate 203 is fixedly installed on the side of the fixing strip 202. The outer wall of the limiting plate 203 is slidably connected to the inner wall of the limiting groove 204.

[0025] In this embodiment: the limiting groove 204 is used to limit the limiting plate 203, so that the limiting plate 203 and the fixing strip 202 can move more stably, and the fixing strip 202 supports and fixes the inner wall of the roll material.

[0026] Specifically, such as Figures 1-8 As shown, the outer wall of the movable block 206 has multiple mounting grooves 209, the inner wall of the mounting groove 209 has an inclined groove 210, and the side of the fixing strip 202 is fixedly installed with an adjusting column 205. The outer wall of the adjusting column 205 is slidably connected to the inner wall of the inclined groove 210.

[0027] In this embodiment: When the moving block 206 moves, the inclined groove 210 drives the adjusting column 205 and the fixing bar 202 to move.

[0028] Specifically, such as Figures 1-8 As shown, one end of cylinder 208 slides through the side of connecting plate 108, the side of clamping plate 110 and the side of connecting shaft 111 in sequence and is fixedly connected to the side of moving block 206. The two ends of limiting post 207 are fixedly connected to the inner walls of both sides of groove 201.

[0029] In this embodiment: the clamping plate 110 clamps and fixes both sides of the roll material, and the cylinder 208 drives the moving block 206 to move.

[0030] The support mechanism 3 is arranged above the base 1, and the support mechanism 3 comprises an arc-shaped strip 304 located at one side of the clamping plate 110. An arc-shaped plate 308 is arranged below the arc-shaped strip 304, and two support wheels 310 are rotatably arranged on the side of the arc-shaped plate 308 through shaft bodies 309.

[0031] Specifically, as shown in the figure, Figures 1-8 The clamping plate 110 is provided with a T-shaped groove 301 on the side surface, and a T-shaped block 302 is slidably arranged in the inner wall of the T-shaped groove 301. A connecting strip 303 is fixedly arranged on the side surface of the T-shaped block 302, and the lower end of the connecting strip 303 is fixedly connected with the side surface of the arc-shaped strip 304.

[0032] In this embodiment, the T-shaped block 302 is limited by the T-shaped groove 301, so that the T-shaped block 302 and the connecting strip 303 move more stably, and the arc-shaped strip 304 moves more stably.

[0033] Specifically, as shown in the figure, Figures 1-8 The arc-shaped strip 304 is provided with an arc-shaped groove 305 on the side surface, and a connecting groove 306 is arranged on one side of the inner wall of the arc-shaped groove 305. An installation strip 307 is fixedly arranged on the top surface of the arc-shaped plate 308, and the side surface of the installation strip 307 is slidably connected with the inner wall of the connecting groove 306 and the inner wall of the arc-shaped groove 305. A counterweight 311 is fixedly arranged on the side surface of the arc-shaped plate 308.

[0034] In this embodiment, the arc-shaped plate 308 is counterweighted by the counterweight 311, so that the middle of the arc-shaped plate 308 is always in a vertical position.

[0035] Specifically, as shown in the figure, Figures 1-8 The side surface of the installation strip 307 is fixedly penetrated and arranged with a sliding shaft 312, and the two ends of the sliding shaft 312 are fixedly arranged with a baffle 313. The outer wall of the sliding shaft 312 is slidably connected with the inner wall of the arc-shaped groove 305, and the side surface of the baffle 313 is slidably connected with the side surface of the arc-shaped strip 304.

[0036] In this embodiment, the sliding shaft 312 can slide in the inner wall of the arc-shaped groove 305, so that the installation strip 307, the arc-shaped plate 308 and the support wheel 310 can rotate.

[0037] Specifically, as shown in the figure, Figures 1-8 The side surface of the connecting strip 303 is fixedly arranged with a fixed rod 314, the side surface of the output rod of the second air cylinder 208 is fixedly arranged with a moving plate 315, the bottom surface of the moving plate 315 is fixedly arranged with a vertical plate 316, the side surface of the vertical plate 316 is provided with an adjusting groove 317, the inner wall of the adjusting groove 317 is slidably connected with the outer wall of the fixed rod 314, the side surface of the fixed column 109 is provided with a sliding groove, and one end of the moving plate 315 is slidably connected with the inner wall of the sliding groove.

[0038] In this embodiment: the adjusting groove 317 is inclined, the cylinder two 208 drives the moving plate 315 and the vertical plate 316 to move, and the adjusting groove 317 on the vertical plate 316 drives the fixed column 109 to move.

[0039] The specific scheme is as follows: after the feeding lifting trolley receives an instruction, it goes to the raw material area to take the material, when the sensor on the trolley senses that it has arrived directly below the raw material roll, the trolley stops moving, the hydraulic lifting system starts to lift the raw material roll upwards, and the trolley carries the raw material roll away from the raw material placing rack, and then stops in front of the rotary arm 104, the sensor on the rotary arm 104 responds, the cylinder one 106 drives the clamping plate 110 and the connecting shaft 111 to move, the connecting shaft 111 is inserted into the roll hole, the clamping plate 110 clamps the two sides of the roll, the cylinder two 208 drives the moving block 206 to move, the inclined groove 210 on the moving block 206 drives the adjusting column 205 to move, the adjusting column 205 drives the plurality of fixed strips 202 to move, the fixed strips 202 support and fix the inner wall of the roll hole, the cylinder two 208 simultaneously drives the moving plate 315 and the vertical plate 316 to move, the adjusting groove 317 on the vertical plate 316 drives the fixed rod 314 and the connecting strip 303 to move, the connecting strip 303 drives the arc-shaped strip 304, the sliding shaft 312 and the mounting strip 307 to move upwards, the mounting strip 307 drives the arc-shaped plate 308 and the supporting wheel 310 to move upwards, the supporting wheel 310 supports the bottom of the roll, the motor 103 drives the rotating shaft 113 and the rotary arm 104 to start rotating upwards, and at the same time, the feeding lifting trolley starts to return to the raw material area to wait for the next order, and when the rotary arm 104 drives the roll to rotate, under the action of the gravity of the counterweight 311, the arc-shaped plate 308, the supporting wheel 310, the mounting strip 307 and the sliding shaft 312 slide in the inner wall of the arc-shaped groove 305, so that the supporting wheel 310 rolls on the outer wall of the roll and is always located below the roll, thereby the supporting wheel 310 always supports the bottom of the roll, so that the roll is not easy to fall during the taking and placing processes, and when the rotary arm 104 drives the roll to rotate to the position directly above the feeding trolley, the lifting system of the feeding trolley starts to work, the receiving rack on the trolley rises to the receiving position, the cylinder one 106 and the cylinder two 208 of the rotary arm 104 are opened, the roll falls on the receiving table of the feeding trolley, the feeding trolley drives the roll to move, and the rotary arm 104 rotates back to the initial waiting position.

[0040] Those skilled in the art should understand that the above discussion of any of the embodiments is only exemplary; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0041] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A rotary material handling robotic arm, comprising: A base (1) is provided with two rotating arms (104) on its upper part. A circular plate (105) is fixedly installed at one end of each rotating arm (104). A fixing frame (107) is provided at one end of each circular plate (105). A connecting plate (108) is fixedly installed on the side of the fixing frame (107). A clamping plate (110) is connected to the side of the connecting plate (108) via a fixing post (109). A connecting shaft (111) is fixedly installed on the side of the clamping plate (110). The base (104) is characterized by further comprising: The fixing mechanism (2) is located above the base (1). The fixing mechanism (2) includes a cylinder two (208) fixedly installed on the side of the connecting plate (108). The connecting shaft (111) is provided with a moving block (206) and multiple fixing strips (202). The moving block (206) has a limit post (207) slidably installed on its side. Support mechanism (3) is located above base (1). The support mechanism (3) includes an arc-shaped strip (304) located on one side of clamping plate (110). An arc-shaped plate (308) is provided below the arc-shaped strip (304). Two support wheels (310) are rotatably mounted on the side of the arc-shaped plate (308) via a shaft (309).

2. The rotary material handling robotic arm according to claim 1, characterized in that, The base (1) is fixedly mounted with a fixed sleeve (101) and a fixed plate (102) on its top surface. A motor (103) is fixedly mounted on the side of the fixed plate (102). A rotating shaft (113) is fixedly mounted on the output end of the motor (103). One end of the rotating shaft (113) rotates through the side of the fixed plate (102) via a bearing and is rotatably connected to the side of the other fixed plate (102). The outer wall of the rotating shaft (113) is rotatably connected to the inner wall of the fixed sleeve (101). The outer wall of the rotating shaft (113) is fixedly connected to one end of the rotating arm (104).

3. A rotary material handling robotic arm according to claim 2, characterized in that, A cylinder (106) is fixedly installed on the side of the circular plate (105). One end of the cylinder (106) slides through the side of the circular plate (105) and is fixedly connected to the side of the fixing frame (107). A limit rod (112) is fixedly installed on the side of the fixing frame (107). One end of the limit rod (112) slides through the side of the circular plate (105) and extends to the other side of the circular plate (105).

4. A rotary material handling robotic arm according to claim 1, characterized in that, The connecting shaft (111) has a groove (201) inside, and a limiting groove (204) is provided on the inner wall of the groove (201). One end of the fixing strip (202) slides through the inner wall of the groove (201) and extends to the outside of the connecting shaft (111). A limiting plate (203) is fixedly installed on the side of the fixing strip (202), and the outer wall of the limiting plate (203) is slidably connected to the inner wall of the limiting groove (204).

5. A rotary material handling robotic arm according to claim 4, characterized in that, The outer wall of the movable block (206) is provided with a plurality of mounting grooves (209), the inner wall of the mounting groove (209) is provided with a sloping groove (210), and an adjusting column (205) is fixedly installed on the side of the fixing strip (202). The outer wall of the adjusting column (205) is slidably connected to the inner wall of the sloping groove (210).

6. A rotary material handling robotic arm according to claim 5, characterized in that, One end of the cylinder (208) slides through the side of the connecting plate (108), the side of the clamping plate (110) and the side of the connecting shaft (111) and is fixedly connected to the side of the moving block (206). The two ends of the limiting post (207) are fixedly connected to the inner walls of both sides of the groove (201).

7. A rotary material handling robotic arm according to claim 1, characterized in that, The clamping plate (110) has a T-shaped groove (301) on its side. A T-shaped block (302) is slidably installed on the inner wall of the T-shaped groove (301). A connecting strip (303) is fixedly installed on the side of the T-shaped block (302). The lower end of the connecting strip (303) is fixedly connected to the side of the arc strip (304).

8. A rotary material handling robotic arm according to claim 7, characterized in that, The arc-shaped strip (304) has an arc-shaped groove (305) on its side, and a connecting groove (306) is provided on the inner wall of one side of the arc-shaped groove (305). An installation strip (307) is fixedly installed on the top surface of the arc-shaped plate (308). The side of the installation strip (307) is slidably connected to the inner wall of the connecting groove (306) and the inner wall of the arc-shaped groove (305). A counterweight (311) is fixedly installed on the side of the arc-shaped plate (308).

9. A rotary material handling robotic arm according to claim 8, characterized in that, A sliding shaft (312) is fixedly installed through the side of the mounting strip (307). Baffles (313) are fixedly installed at both ends of the sliding shaft (312). The outer wall of the sliding shaft (312) is slidably connected to the inner wall of the arc groove (305). The side of the baffle (313) is slidably connected to the side of the arc strip (304).

10. A rotary material handling robotic arm according to claim 9, characterized in that, A fixing rod (314) is fixedly installed on the side of the connecting strip (303), a moving plate (315) is fixedly installed on the side of the output rod of the second cylinder (208), a vertical plate (316) is fixedly installed on the bottom surface of the moving plate (315), an adjustment groove (317) is provided on the side of the vertical plate (316), the inner wall of the adjustment groove (317) is slidably connected to the outer wall of the fixing rod (314), a sliding groove is provided on the side of the fixing column (109), and one end of the moving plate (315) is slidably connected to the inner wall of the sliding groove.

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