CN215122013U

CN215122013U - Novel lifting mechanism of coating transplanter

Info

Publication number: CN215122013U
Application number: CN202023275440.8U
Authority: CN
Inventors: 张华昂
Original assignee: Suzhou Huaang Intelligent Equipment Manufacturing Co ltd
Current assignee: Suzhou Huaang Intelligent Equipment Manufacturing Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-12-14
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to a novel lifting mechanism of a coating transplanter, which comprises a base component, wherein the base component is arranged at the bottom end and is used for supporting the whole lifting mechanism, and the upper end of the base component is provided with a linear guide rail component which provides a certain sliding area for the lifter; the lifting device is positioned above the base assembly and is in sliding connection with the base assembly through the linear guide rail assembly, and the lifting device is used for providing power for up-and-down movement to drive the fixing plate inside the lifting device to accurately and rapidly move; the operation assembly is located on one side of the lifting device and is fixedly connected with the lifting device, and the operation assembly moves up and down linearly along with the lifting device and is used for transferring target vegetation. The utility model discloses an actuating mechanism has adopted the electric jar of advanced straight line to drive and supplementary big latus rectum to electroplate the direction guide pillar and lead, has thoroughly changed the condition that the location is inaccurate and speed is slow to flexible production's target has been realized. Meanwhile, the production efficiency and the movement stability are greatly improved, and the automation trend is met.

Description

Novel lifting mechanism of coating transplanter

Technical Field

The utility model relates to a lift field specifically is a novel application transplanter's elevating system.

Background

The transplanter mainly comprises a feeder, a seedling guide pipe, a seedling lifter, a furrow opener, a soil covering press wheel and other working parts. During operation, after dividing seedlings manually, the seedlings are put into the feeding cylinder of the feeder, when the feeding cylinder rotates to the position above the seedling guide pipe, the valve below the feeding cylinder is opened, the seedlings fall into the seedling guide pipe under the action of gravity, the seedlings are introduced into a seedling ditch opened by the furrow opener through the inclined seedling guide pipe, under the support of the grid-type seedling support device, the seedlings are in an upright state, and then under the action of a soil covering flow formed between the furrow opener and the soil covering press wheel, soil covering and pressing are carried out, and the planting process is completed. And the transplanter is composed of independent planting single groups, and each single group is driven by the ground wheel, so that the transplanter can be matched with tractors with different sizes to form a 2-6-row transplanter and has the characteristic of a building block type.

The lifting mechanism is a core component of the transplanter, but the lifting mechanism of the traditional coating transplanter on the market is driven by adopting an air cylinder or an oil cylinder, the rated position precision and the control mode of the air cylinder and the oil cylinder are very extensive, the increasingly complex production requirements are difficult to meet, the production efficiency is difficult to guarantee, and the failure rate is also very high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the lifting mechanism of the novel coating transplanter is provided, and the technical scheme solves the problems of low production efficiency and high failure rate.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a novel lifting mechanism of a coating transplanter comprises:

the base assembly is arranged at the bottommost end and used for supporting the whole lifting mechanism, and the upper end of the base assembly is provided with the linear guide rail assembly which provides a certain sliding area for the lifter;

the lifting device is positioned above the base assembly and is in sliding connection with the base assembly through the linear guide rail assembly, and the lifting device is used for providing power for up-and-down movement to drive a fixing plate in the lifting device to accurately and rapidly move;

and the operation assembly is positioned on one side of the lifting device and is fixedly connected with the lifting device, and the operation assembly moves linearly up and down along with the lifting device and is used for transferring the target vegetation.

Preferably, the base component comprises a fixed base, a linear guide rail component, a limiting plate and mounting side plates, the fixed base is positioned at the bottommost end of the base component, the bottom end of the fixed base is designed in a rectangular shape and can adapt to different use environments, the upper ends of the mounting side plates positioned at two sides of the fixed base are provided with fixing bolts, the lifting mechanism is mounted at a preset position on a corresponding device through the fixing bolts and the mounting side plates, the lifting mechanism can be dismounted through the mounting side plates and is beneficial to daily maintenance, the linear guide rail component is symmetrically arranged at the upper end of the fixed base and comprises linear positioning strips, concave slide rails, front end positioning blocks and fastening plugs, the linear positioning strips are fixedly connected with the upper end edges of the base component, the concave slide rails are positioned at the top ends of the linear positioning strips, and the fastening plugs penetrate through the concave slide rails and extend downwards to be fixedly connected with the linear positioning strips, the concave slide rail is fixedly connected with the linear positioning strip through a fastening plug, the concave parts on two sides of the concave slide rail are designed in an isosceles trapezoid shape, a front end positioning block is arranged at the front end of the concave slide rail, a limiting plate is arranged at the tail end of the concave slide rail corresponding to the front end positioning block, and the bottom end of the limiting plate is welded with the fixed base.

Preferably, the lifting device comprises a receiving plate, guide pillars, a cross beam plate, a fixing plate and an electric cylinder assembly, the receiving plate is located above the linear guide rail assembly, a bearing slider is arranged at the contact position of the bottom end of the receiving plate and the linear guide rail assembly, the bearing slider is of a top-wide and bottom-narrow type, a concave slide rail is embedded into the lower end of the bearing slider and is matched with the concave slide rail, the receiving plate is connected with the linear positioning strip in a sliding mode through the bearing slider at the lower end, two guide pillars are symmetrically welded at the edge of the upper end of the receiving plate, a barrel-shaped mounting seat is arranged at the bottom end of each guide pillar, the guide pillars are fixed with the receiving plate through the barrel-shaped mounting seat, a plurality of arc slide rails are arranged around the outer ring of each guide pillar, the cross beam plate is located at the top end of each guide pillar and is fixedly connected with the guide pillars through fixing nuts, the middle of the cross beam plate is sunken inwards, and movement of the assembly is facilitated.

Preferably, accept board upper end central point and put and be provided with solid mounting panel, solid mounting panel through its inside fastening bolt with accept board fixed connection, the electricity jar subassembly is located solid mounting panel upper end, the electricity jar subassembly includes linear motion lead screw and servo motor, linear motion lead screw bottom is located solid mounting panel upper end central point department, and its top and fixed plate butt, servo motor is located linear motion lead screw right side and welds with solid mounting panel, fixed plate both ends and guide pillar sliding connection, and the fixed plate is inside to be provided with the recess that slides, slide recess and arc slide rail phase-match, the fixed plate reciprocates at the guide pillar through sliding recess and arc slide rail joint.

Preferably, the operation subassembly is including attaching the pouring weight, removing mounting panel and centre gripping subassembly, attaches the pouring weight and is located the fixed plate upper end, attaches pouring weight one side symmetric welding and has two connection laths, and connects the lath and be vertical design, its and one side removal mounting panel fixed connection, the connection lath is slightly good at to the removal mounting panel, and its bottom welding has fixed clamp splice, and centre gripping subassembly is located inside and both ends of fixed clamp splice and runs through fixed clamp splice and outwards extend, and centre gripping subassembly passes through fixed clamp splice and removal mounting panel fixed connection.

Preferably, the centre gripping subassembly is including supporting the slide bar, the cardboard slider, arc manipulator and limit baffle, support slide bar upper end and both sides and all seted up the spout and cardboard slider matches with the spout, support slide bar and cardboard slider sliding connection, cardboard slider one side outwards extends and is connected with arc manipulator, arc manipulator is through its inside screw and cardboard slider fixed connection that sets up, and arc manipulator can dismantle, limit baffle is located and supports slide bar both ends position, be used for restricting that the cardboard slider slides in predetermined region

Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses an actuating mechanism has adopted the electric jar of advanced straight line to drive and supplementary big latus rectum to electroplate the direction guide pillar and lead, has thoroughly changed the condition that the location is inaccurate and speed is slow to flexible production's target has been realized. Meanwhile, the production efficiency and the movement stability are greatly improved, and the automation trend is met. And the linear electric cylinder is driven by a servo motor, so that the linear electric cylinder has quick response and stability.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is a schematic perspective view of the present invention at another viewing angle;

fig. 3 is a cross-sectional view of the present invention from a side view;

fig. 4 is an overall plan view of the present invention;

fig. 5 is an overall front view of the present invention;

fig. 6 is an enlarged view of a portion a of fig. 2 according to the present invention;

FIG. 7 is an enlarged view of a portion of the present invention at B in FIG. 1;

fig. 8 is an enlarged view of a portion of fig. 3C according to the present invention;

the reference numbers in the figures are:

1. a base assembly; 11. a fixed base; 12. a linear guide rail assembly 121, a linear positioning bar; 122. a concave slide rail; 123. a front end positioning block; 124. fastening the plug; 13. a limiting plate; 14. installing a side plate;

2. a take-off and landing device; 21. a bearing plate; 211. a load-bearing slider; 212. a solid mounting plate; 22. a guide post; 221. a barrel-shaped mount; 222. an arc-shaped slide rail; 23. a beam plate; 24. a fixing plate; 25. an electric cylinder assembly; 251. a linear motion screw rod; 252. a servo motor;

3. a running assembly; 31. attaching a weight block; 311. connecting the battens; 32. moving the mounting plate; 33. a clamping assembly; 331. supporting the sliding rod; 332. a pallet slide block; 333. an arc-shaped manipulator; 334. and a limiting baffle.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 6, the novel lifting mechanism of the coating transplanter comprises a base assembly 1, wherein the base assembly 1 is arranged at the bottommost end and used for supporting the whole lifting mechanism, and a linear guide rail assembly 12 is arranged at the upper end and used for providing a certain sliding area for the lifter; the base component 1 comprises a fixed base 11, a linear guide rail component 12, a limit plate 13 and mounting side plates 14, the fixed base 11 is positioned at the bottommost end of the base component 1, the bottom end of the fixed base is designed to be rectangular and can adapt to different use environments, the upper ends of the mounting side plates 14 positioned at two sides of the fixed base 11 are provided with fixing bolts, the linear guide rail component 12 is symmetrically arranged at the upper end of the fixed base 11, the linear guide rail component 12 comprises a linear positioning strip 121, a concave sliding rail 122, a front end positioning block 123 and a fastening plug 124, the linear positioning strip 121 is fixedly connected with the upper end edge of the base component 1, the concave sliding rail 122 is positioned at the top end of the linear positioning strip 121, the fastening plug 124 penetrates through the concave sliding rail 122 and extends downwards to be fixedly connected with the linear positioning strip 121, the concave sliding rail 122 is fixedly connected with the linear positioning strip 121 through the fastening plug 124, the concave sliding rail 122 is designed to be isosceles trapezoid at the concave part at two sides, the front end of the lifting mechanism is provided with a front end positioning block 123, the tail end of the lifting mechanism is provided with a limiting plate 13 corresponding to the front end positioning block 123, the bottom end of the limiting plate 13 is welded with the fixed base 11, the linear guide rail component 12 is used for supporting the lifting device 2 and the operation component 3 to freely slide on the fixed base 11, the inward-concave design at two sides of the concave slide rail 122 is matched with the outer part at the middle part of the bearing slide block 211, the two parts are clamped and slide, the bearing slide block 211 is prevented from falling off from the linear positioning strip 121 due to over-high speed in the sliding process, the derailment risk of the device is reduced, the stability of the device is ensured, meanwhile, the front end positioning block 123 and the tail end limiting plate 13 jointly limit the bearing slide block 211 in a preset area, the fixing bolt is used for installing the side plate 14 to install the lifting mechanism at a preset position on a corresponding device, and the lifting mechanism can be disassembled through installing the side plate 14, is beneficial to daily maintenance and replacement.

Referring to fig. 1, 3 and 8, the lifting device 2 is located above the base assembly 1 and is slidably connected thereto through a linear guide rail assembly 12, and the lifting device 2 is used for providing power for moving up and down to drive the fixing plate 24 inside to move accurately and rapidly; the lifting device 2 comprises a bearing plate 21, a guide post 22, a cross beam plate 23, a fixing plate 24 and an electric cylinder assembly 25, wherein the bearing plate 21 is positioned above the linear guide rail assembly 12, a bearing slide block 211 is arranged at the position where the bottom end of the bearing plate contacts the linear guide rail assembly 12, the bearing slide block 211 is wide at the upper part and narrow at the lower part, a concave slide rail 122 is embedded into the lower end of the bearing slide block and matched with the concave slide rail 122, the bearing plate 21 is in sliding connection with a linear positioning strip 121 through the bearing slide block 211 at the lower end, two guide posts 22 are symmetrically welded at the edge of the upper end of the bearing plate 21, a barrel-shaped mounting seat 221 is arranged at the bottom end of each guide post 22, the guide posts 22 are fixed with the bearing plate 21 through the barrel-shaped mounting seat 221, a plurality of arc-shaped slide rails 222 are arranged around the outer ring of the guide posts 22, the cross beam plate 23 is positioned at the top end of the guide posts 22 and fixedly connected with the guide posts through fixing nuts, the middle part of the cross beam plate 23 is sunken inwards, movement of the running assembly 3 is facilitated; the center of the upper end of the bearing plate 21 is provided with a solid mounting plate 212, the solid mounting plate 212 is fixedly connected with the bearing plate 21 through a fastening bolt inside the solid mounting plate, the electric cylinder assembly 25 is positioned at the upper end of the solid mounting plate 212, the electric cylinder assembly 25 comprises a linear motion screw rod 251 and a servo motor 252, the bottom end of the linear motion screw rod 251 is positioned at the center of the upper end of the solid mounting plate 212, the top end of the linear motion screw rod 251 is abutted against the fixing plate 24, the servo motor 252 is positioned at the right side of the linear motion screw rod 251 and is welded with the solid mounting plate 212, two ends of the fixing plate 24 are slidably connected with the guide post 22, a sliding groove is arranged inside the fixing plate 24 and is matched with the arc-shaped slide rail 222, the fixing plate 24 is clamped with the arc-shaped slide rail 222 through the sliding groove to move up and down on the guide post 22, the bearing plate 21 is used for supporting the lifting device 2 and the operation assembly 3 and simultaneously driving the operation assembly to slide on the base assembly 1 along with the bearing slide slider 211, the symmetrically arranged guide posts 22 are large-diameter electroplating guide posts, guide the electric cylinder assembly 25, the barrel-shaped mounting seat 211 at the bottom end of the guide posts fixes the guide posts on the upper end of the bearing plate 21, the stability of the guide posts 22 is ensured, the crossbeam plate 23 at the top end of the guide posts 22 is arranged to indirectly and fixedly connect the two guide posts 22, so that the two guide posts 22 and the crossbeam plate 23 form a portal frame, the stability of the integral device in the motion process is ensured, the solid mounting plate 212 is fixed at the top end of the bearing plate 21 and used for mounting the electric cylinder assembly 25, the linear motion screw rod 251 is used for supporting the fixing plate 24 and driving the fixing plate 24 to move up and down, meanwhile, the sliding grooves at the two ends of the fixing plate 24 are matched with the arc-shaped slide rails 222, the fixing plate 24 slides on the guide posts 22 more smoothly, the accuracy of the device is improved, the servo motor 252 at one side is used for driving the linear motion screw rod 251, therefore, the device has quick response and stability, adopts the advanced electric cylinder assembly 25 for driving and assists the large-drift-diameter electroplating guide post 22 for guiding, thoroughly changes the conditions of inaccurate positioning and low speed, and realizes the aim of flexible production. Greatly improves the production efficiency and the motion stability and conforms to the trend of automation.

Referring to fig. 2, 4, 5 and 7, the operation assembly 3 is located at one side of the lifting device 2 and fixedly connected therewith, the operation assembly 3 moves linearly up and down along with the lifting device 2 for transferring target vegetation, two connecting slats 311 are symmetrically welded at one side of the weight 31, the connecting slats 311 are vertically vertical and fixedly connected with a side moving mounting plate 32, the moving mounting plate 32 is slightly longer than the connecting slats 311, a fixing clamp block is welded at the bottom end thereof, the clamping assembly 33 is located inside the fixing clamp block and both ends thereof extend outwards through the fixing clamp block, the clamping assembly 33 is fixedly connected with the moving mounting plate 32 through the fixing clamp block, sliding grooves are formed at both the upper end and both sides of the supporting sliding rod 331 and the clamping plate slider 332 are matched with the sliding grooves, the supporting sliding rod 331 is slidably connected with the clamping plate slider 332, one side of the clamping plate slider 332 extends outwards and is connected with the arc-shaped manipulator 333, the arc-shaped manipulator 333 is fixedly connected with the clamping plate sliding block 332 through a screw arranged in the arc-shaped manipulator 333, the arc-shaped manipulator 333 is detachable, the weight 31 is used for supporting the whole clamping component 33, the movable mounting plate 32 is used for mounting the clamping component 33 and ensuring that the clamping component 33 is welded with the movable mounting plate to avoid micro displacement of the clamping component 33 caused by frequent work, so that the accuracy performance of the whole device is influenced, a sliding groove arranged on the supporting sliding rod 331 is used for clamping the clamping plate sliding block 332, the clamping plate sliding block 332 drives the arc-shaped manipulator 333 to slide on the supporting sliding rod 331, the two clamping plate sliding blocks 332 are symmetrically arranged and act synchronously, and the arc-shaped manipulator 333 is formed by two inwards-sunken clamping claws, so that the arc-shaped manipulator can be perfectly attached to a target vegetation, the arc-shaped manipulator 333 is driven to slide on the supporting sliding rod 331 to approach each other through the clamping plate sliding block 332 to firmly fix and transfer the target vegetation, the limit stop 334 is used to block the movement of the card slider 332 so that it can slide in a predetermined area to avoid derailment.

The use process of the device is as follows: the lifting device 2 and the operation component 3 are moved to a preset position through the linear guide rail component 12, then the target is fixed through the arc-shaped manipulator 333, at the moment, the servo motor 252 drives the linear motion screw rod 251 to move upwards under the assistance of the guide posts 22, so that the operation component 3 is driven to move upwards, meanwhile, the target is transported to a preset place through other mechanisms in the coating transplanter system, and the linear motion screw rod 251 is driven by the servo motor 252 to be matched with the guide posts 22 to descend and accurately place the target at the preset position.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel elevating system of application transplanter which characterized in that includes:

the base assembly (1) is arranged at the bottommost end and used for supporting an integral lifting mechanism, and a linear guide rail assembly (12) is arranged at the upper end and used for providing a certain sliding area for the lifter;

the lifting device (2) is positioned above the base assembly (1) and is in sliding connection with the base assembly through a linear guide rail assembly (12), and the lifting device (2) is used for providing power for up-and-down movement to drive a fixing plate (24) inside the lifting device to accurately and rapidly move;

the operation assembly (3) is located on one side of the lifting device (2) and is fixedly connected with the lifting device, and the operation assembly (3) moves linearly up and down along with the lifting device (2) and is used for transferring target vegetation.

2. The novel lifting mechanism of a coating transplanter according to claim 1, wherein the base assembly (1) comprises a fixed base (11), a linear guide rail assembly (12), a limiting plate (13) and a mounting side plate (14), the fixed base (11) is located at the bottom of the base assembly (1), the bottom of the fixed base is rectangular and can adapt to different use environments, fixing bolts are arranged at the upper ends of the mounting side plates (14) at the two sides of the fixed base (11), the lifting mechanism is mounted at a preset position on a corresponding device through the fixing bolts and the mounting side plates (14), the lifting mechanism can be dismounted through the mounting side plates (14) to facilitate daily maintenance, the linear guide rail assembly (12) is symmetrically arranged at the upper end of the fixed base (11), and the linear guide rail assembly (12) comprises a linear positioning strip (121), Concave slide rail (122), front end locating piece (123) and fastening plug (124), straight line location strip (121) and base subassembly (1) upper end edge fixed connection, concave slide rail (122) are located straight line location strip (121) top, and fastening plug (124) run through concave slide rail (122) and downwardly extending and straight line location strip (121) fixed connection, and concave slide rail (122) are through fastening plug (124) and straight line location strip (121) fixed connection, concave slide rail (122) are the design of isosceles trapezoid for the concave department in both sides, and its front end position is provided with front end locating piece (123), are provided with limiting plate (13) in its terminal and front end locating piece (123) corresponding position, and limiting plate (13) bottom and unable adjustment base (11) welding.

3. The lifting mechanism of a novel coating transplanter according to claim 1, wherein the lifting device (2) comprises a bearing plate (21), guide posts (22), a beam plate (23), a fixing plate (24) and an electric cylinder assembly (25), the bearing plate (21) is located above the linear guide assembly (12), a bearing slider (211) is arranged at the position where the bottom end of the bearing plate contacts the linear guide assembly (12), the bearing slider (211) is wide at the upper part and narrow at the lower part, a concave slide rail (122) is embedded in the lower end of the bearing slider and matched with the concave slide rail (122), the bearing plate (21) is slidably connected with the linear positioning bar (121) through the bearing slider (211) at the lower end, two guide posts (22) are symmetrically welded at the upper end edge of the bearing plate (21), a barrel-shaped mounting seat (221) is arranged at the bottom end of the guide posts (22), and the guide posts (22) are fixed with the bearing plate (21) through the barrel-shaped mounting seat (221), and be provided with many arc slide rails (222) around guide pillar (22) outer lane, crossbeam board (23) are located guide pillar (22) top, and through fixation nut with the two fixed connection, and crossbeam board (23) middle part is inside sunken, does benefit to the removal of operation subassembly (3).

4. The novel lifting mechanism of a coating transplanter as claimed in claim 3, wherein a solid mounting plate (212) is disposed at the center of the upper end of the supporting plate (21), the solid mounting plate (212) is fixedly connected to the supporting plate (21) through a fastening pin inside the solid mounting plate, the electric cylinder assembly (25) is disposed at the upper end of the solid mounting plate (212), the electric cylinder assembly (25) comprises a linear motion screw (251) and a servo motor (252), the bottom end of the linear motion screw (251) is disposed at the center of the upper end of the solid mounting plate (212), and the top end of the linear motion screw abuts against the fixing plate (24), the servo motor (252) is disposed at the right side of the linear motion screw (251) and is welded to the solid mounting plate (212), the two ends of the fixing plate (24) are slidably connected to the guide posts (22), and a sliding groove is disposed inside the fixing plate (24) and matches with the arc-shaped slide rail (222), the fixing plate (24) is clamped with the arc-shaped slide rail (222) through the sliding groove to move up and down on the guide post (22).

5. The lifting mechanism of the novel coating transplanter is characterized in that the operating assembly (3) comprises an additional weight (31), a movable mounting plate (32) and a clamping assembly (33), the additional weight (31) is located at the upper end of the fixing plate (24), two connecting laths (311) are symmetrically welded on one side of the additional weight (31), the connecting laths (311) are vertically designed and fixedly connected with the movable mounting plate (32) on one side, the movable mounting plate (32) is slightly longer than the connecting laths (311), a fixed clamping block is welded at the bottom end of the movable mounting plate, the clamping assembly (33) is located inside the fixed clamping block, two ends of the clamping assembly penetrate through the fixed clamping block and extend outwards, and the clamping assembly (33) is fixedly connected with the movable mounting plate (32) through the fixed clamping block.

6. The lifting mechanism of the novel coating transplanter is characterized in that the clamping assembly (33) comprises a supporting sliding rod (331), a clamping plate sliding block (332), an arc-shaped mechanical arm (333) and a limit baffle (334), sliding grooves are formed in the upper end and two sides of the supporting sliding rod (331), the clamping plate sliding block (332) is matched with the sliding grooves, the supporting sliding rod (331) is connected with the clamping plate sliding block (332) in a sliding mode, one side of the clamping plate sliding block (332) extends outwards and is connected with the arc-shaped mechanical arm (333), the arc-shaped mechanical arm (333) is fixedly connected with the clamping plate sliding block (332) through screws arranged in the arc-shaped mechanical arm, the arc-shaped mechanical arm (333) is detachable, and the limit baffle (334) is located at two ends of the supporting sliding rod (331) and is used for limiting the sliding of the clamping plate sliding block (332) in a preset area.