CN215237994U

CN215237994U - Adjustable automatic punching device for chain sleeve

Info

Publication number: CN215237994U
Application number: CN202121612549.8U
Authority: CN
Inventors: 简瀚宇
Original assignee: Chenshou Xiamen Automation Technology Co ltd
Current assignee: Chenshou Xiamen Automation Technology Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-12-21
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses an automatic perforating device with adjustable chain sleeve uses, which comprises a mounting bas, the top of mount pad is equipped with driving motor, and drilling mechanism is installed to driving motor's output shaft bottom, the equal fixedly connected with backup pad in top both sides of mount pad, the same roof of the top fixedly connected with of two backup pads, the bottom of roof is inlayed and is equipped with electric telescopic handle, and the sliding sleeve is equipped with same movable plate in two backup pads, and electric telescopic handle's output shaft bottom and the top fixed connection of movable plate, driving motor inlay the dress in the bottom of movable plate, and the hole of dodging has been seted up at the top of mount pad. The utility model relates to a rationally, be convenient for adjust drilling mechanism's diameter size according to drilling needs, make it can drill out the hole of different diameters, improve application scope, and be convenient for automatic realization before drilling to telescopic pressing solid operation, reduce the manual potential safety hazard of bringing of pressing firmly of personnel, improve operational safety, satisfy the user demand.

Description

Adjustable automatic punching device for chain sleeve

Technical Field

The utility model relates to an automatic drilling equipment technical field especially relates to an automatic perforating device with adjustable chain sleeve uses.

Background

The sleeve chain with the oil hole is a transmission chain which needs lubrication and cooling, has high transmission speed, large load and the like and has strict requirements on use occasions, and at present, the sleeve hole of the chain with the oil hole is formed by rolling and forming a sleeve and then drilling by using an electric drill; present mode through electric drill drilling, it is when drilling, it is not convenient for automatic to press admittedly to the sleeve, current through the manual fixed mode of personnel, there is the potential safety hazard, the risk of injuring the staff appears easily, and the size of drilling is not convenient for adjust according to actual need, the size in the hole that current electric drill bored is the most the same, when needs drill out different holes, need change alone the drilling rod on the electric drill, application scope is more limited, can not satisfy the user demand, therefore we have proposed an adjustable automatic perforating device that chain sleeve used and have been used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an adjustable automatic punching device for a chain sleeve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an adjustable automatic punching device for a chain sleeve comprises a mounting seat, wherein a driving motor is arranged above the mounting seat, a drilling mechanism is arranged at the bottom end of an output shaft of the driving motor, supporting plates are fixedly connected to two sides of the top of the mounting seat, the tops of the two supporting plates are fixedly connected with a same top plate, an electric telescopic rod is embedded in the bottom of the top plate, a same movable plate is slidably sleeved on the two supporting plates, the bottom end of the output shaft of the electric telescopic rod is fixedly connected with the top of the movable plate, the driving motor is embedded in the bottom of the movable plate, a avoiding hole is formed in the top of the mounting seat, the avoiding hole is located under the drilling mechanism and matched with the drilling mechanism, an elastic pressing and fixing mechanism is arranged on the movable plate, and the elastic pressing and fixing mechanism is sleeved on the drilling mechanism;

drilling mechanism installs four arcs in the drill bit outside including installation pole, fixed mounting at the drill bit of installation pole bottom and rotation, and the top of installation pole and driving motor's output shaft bottom fixed connection, installation pole are located between four arcs, and establish to the slope cross-section in the outside bottom of arc, and four arcs form a drilling rod, and the outside of arc is equipped with drill bit twill slot, bonds between two adjacent arcs and is fixed with same elasticity and hides and keep off cloth, install on the installation pole and cooperate upset adjustment mechanism with four arcs.

Preferably, the elastic pressing and fixing mechanism comprises a clip pressing frame located below the movable plate, the clip pressing frame is sleeved on the drilling mechanism, L-shaped positioning rods are fixedly connected to two sides of the top of the clip pressing frame and symmetrically arranged, the top of each L-shaped positioning rod extends to the position above the movable plate, the movable plate is slidably sleeved on the two L-shaped positioning rods, two springs are fixedly connected between the top of the clip pressing frame and the bottom of the movable plate, the springs are movably sleeved on the corresponding L-shaped positioning rods, and the driving motor is located between the two L-shaped positioning rods.

Preferably, the turnover adjusting mechanism comprises four mounting grooves, the four mounting grooves are respectively arranged on the left side, the right side, the front side and the rear side of the mounting rod, a screw rod is rotatably mounted on the inner wall of the bottom of the mounting groove, a mounting hole is formed in the top of the right side of the mounting rod, the mounting hole is positioned above the four mounting grooves, the top end of the screw rod extends to the upper part of the mounting hole and is fixedly connected with a first gear, a first motor is fixedly mounted on the inner wall of the top of the mounting hole, a second gear is fixedly mounted at the bottom end of an output shaft of the first motor and is positioned between the four first gears, the second gear is meshed with the four first gears, a movable block is sleeved on the screw rod in a threaded manner, the movable block is slidably mounted on the inner wall of the side, away from the opening, of the corresponding mounting groove, obliquely arranged connecting rods are hinged to the side, which is far away from the two opposite movable blocks, and are symmetrically arranged, one end of the connecting rod, which is far away from the corresponding moving block, is hinged with one side of the arc-shaped plate, which is close to the mounting rod.

Preferably, rectangular through holes are formed in two sides of the top of the moving plate, and the inner walls of the rectangular through holes are connected with the outer sides of the corresponding supporting plates in a sliding mode.

Preferably, two first rectangular holes are formed in the top of the moving plate, the inner walls of the first rectangular holes are in sliding connection with the outer sides of the corresponding L-shaped positioning rods, and the bottom of the clip-shaped pressing frame is fixedly bonded with a clip-shaped anti-skid rubber sheet.

Preferably, a rotating groove is formed in the inner wall of the bottom of the mounting groove, a first bearing is fixedly sleeved in the rotating groove, a circular hole is formed in the inner wall of the top of the mounting groove and communicated with the mounting hole, a second bearing is sleeved in the circular hole in a fixed mode, and the inner ring of the second bearing and the inner ring of the first bearing are both fixedly sleeved on the outer side of the corresponding screw rod.

Preferably, the mounting groove is provided with a first groove on the inner wall of the side away from the opening of the mounting groove, the first groove is fixedly connected with a T-shaped sliding rail on the inner wall of the side away from the opening of the first groove, the moving block is provided with a sliding block fixedly connected with one side away from the corresponding arc-shaped plate, one side, away from the corresponding moving block, of the sliding block is provided with a T-shaped sliding groove, the top and the bottom of the T-shaped sliding groove are both provided with openings, and the T-shaped sliding groove is connected with the corresponding T-shaped sliding rail in a sliding manner.

Preferably, the top of the moving block is provided with a threaded hole, and the threaded hole is in threaded connection with the corresponding screw.

Preferably, the four sides of the drill bit are embedded with balls, and one side of the arc-shaped plate close to the drill bit is fixedly connected with the corresponding ball.

Compared with the prior art, the beneficial effects of the utility model are that:

when the diameter of the drilling mechanism is adjusted, the first motor is started in the forward direction to drive the second gear to rotate, the second gear drives the four screw rods to rotate through the four first gears, the screw rods rotate to drive the corresponding moving blocks to upwards extrude the connecting rod to move and rotate, the connecting rods drive the corresponding arc plates to rotate, so that the four arc plates rotate in the mutually-far directions and respectively stretch the corresponding elastic shielding cloth, the diameter of the drilling mechanism is gradually increased while the arc plates rotate, and when the size of the drilling mechanism is adjusted, stopping the first motor to fix the arc-shaped plate, and finishing adjustment;

when drilling operation is carried out, the sleeve is placed on the mounting seat, then the electric telescopic rod is started in the forward direction to drive the driving motor to move downwards through the movable plate, the driving motor drives the drilling mechanism to move downwards, the movable plate drives the clip pressing frame and the clip protective rubber to move downwards through the two L-shaped positioning rods until the movable plate is contacted with the top of the sleeve, the clip pressing frame and the L-shaped positioning rods are limited to move downwards continuously, the movable plate moves downwards and compresses the spring, the movable plate supplies downward pressure to the clip pressing frame through the spring, the clip pressing frame presses the sleeve on the top of the mounting seat through the anti-skid rubber, the movable plate which moves downwards drives the drilling mechanism to move downwards through the driving motor, meanwhile, the driving motor is started in the forward direction to drive the drill bit to rotate through the mounting rod, the drill bit drives the four arc-shaped plates to rotate, and the drill bit and the four arc-shaped plates move downwards while rotating, in the drill bit bored the sleeve downwards, the arc that rotates simultaneously and the downstream was followed the drill bit downstream and was carried out the drilling operation to the sleeve, after the drilling was accomplished, can reverse start driving motor and electric telescopic handle for driving motor drives drilling mechanism reversal and shifts out in the drilling from the sleeve, and drilling is accomplished.

The utility model relates to a rationally, be convenient for adjust drilling mechanism's diameter size according to drilling needs, make it can drill out the hole of different diameters, improve application scope, and be convenient for automatic realization before drilling to telescopic pressing solid operation, reduce the manual potential safety hazard of bringing of pressing firmly of personnel, improve operational safety, satisfy the user demand.

Drawings

Fig. 1 is a schematic structural view of an adjustable automatic punching device for a chain sleeve according to the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a schematic top view of four connecting members of the first gear and the second gear of the adjustable automatic punching device for the chain sleeve according to the present invention;

fig. 5 is a schematic structural view of the non-installed state of the elastic pressing mechanism of the adjustable automatic punching device for a chain sleeve according to the present invention.

In the figure: 100 mount pads, 101 backup pads, 102 roof, 103 electric telescopic handle, 1 movable plate, 2 dodge the hole, 3 time shape press the frame, 4L shape locating lever, 5 springs, 6 driving motor, 7 installation poles, 8 drill bits, 9 arcs, 10 mounting grooves, 11 screw rods, 12 movable blocks, 13 connecting rods, 14 mounting holes, 15 first gear, 16 second gear, 17 first motor, 18 elasticity shelters from.

Detailed Description

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.

Referring to fig. 1-5, an adjustable automatic punching device for a chain sleeve comprises an installation seat 100, a driving motor 6 is arranged above the installation seat 100, a drilling mechanism is arranged at the bottom end of an output shaft of the driving motor 6, supporting plates 101 are fixedly connected to both sides of the top of the installation seat 100, the tops of the two supporting plates 101 are fixedly connected with a same top plate 102, an electric telescopic rod 103 is embedded in the bottom of the top plate 102, a same moving plate 1 is slidably sleeved on the two supporting plates 101, the bottom end of the output shaft of the electric telescopic rod 103 is fixedly connected with the top of the moving plate 1, the driving motor 6 is embedded in the bottom of the moving plate 1, an avoiding hole 2 is formed in the top of the installation seat 100, the avoiding hole 2 is located under the drilling mechanism and matched with the drilling mechanism, an elastic pressing mechanism is arranged on the mounting seat 1, and the moving plate of the elastic pressing mechanism is sleeved on the drilling mechanism;

the drilling mechanism comprises an installation rod 7, a drill bit 8 fixedly installed at the bottom end of the installation rod 7 and four arc-shaped plates 9 rotatably installed on the outer side of the drill bit 8, the top end of the installation rod 7 is fixedly connected with the bottom end of an output shaft of the driving motor 6, the installation rod 7 is located between the four arc-shaped plates 9, the bottom of the outer side of each arc-shaped plate 9 is provided with an inclined cross section, the four arc-shaped plates 9 form a drill rod, a drill bit twill groove is formed in the outer side of each arc-shaped plate 9, the same elastic shielding cloth 18 is fixedly bonded between every two adjacent arc-shaped plates 9, and a turnover adjusting mechanism matched with the four arc-shaped plates 9 is installed on the installation rod 7;

the elastic pressing and fixing mechanism comprises a clip-shaped pressing frame 3 positioned below the movable plate 1, the clip-shaped pressing frame 3 is sleeved on the drilling mechanism, L-shaped positioning rods 4 are fixedly connected to two sides of the top of the clip-shaped pressing frame 3, the two L-shaped positioning rods 4 are symmetrically arranged, the tops of the L-shaped positioning rods 4 extend to the upper side of the movable plate 1, the movable plate 1 is slidably sleeved on the two L-shaped positioning rods 4, two springs 5 are fixedly connected between the tops of the clip-shaped pressing frame 3 and the bottom of the movable plate 1, the springs 5 are movably sleeved on the corresponding L-shaped positioning rods 4, and a driving motor 6 is positioned between the two L-shaped positioning rods 4;

the overturning adjusting mechanism comprises four mounting grooves 10, the four mounting grooves 10 are respectively arranged at the left side, the right side, the front side and the rear side of the mounting rod 7, a screw rod 11 is rotatably mounted on the inner wall of the bottom of the mounting groove 10, a mounting hole 14 is formed in the top of the right side of the mounting rod 7, the mounting hole 14 is positioned above the four mounting grooves 10, the top end of the screw rod 11 extends to the upper side of the mounting hole 14 and is fixedly connected with a first gear 15, a first motor 17 is fixedly mounted on the inner wall of the top of the mounting hole 14, a second gear 16 is fixedly mounted at the bottom of an output shaft of the first motor 17, the second gear 16 is positioned between the four first gears 15, the second gear 16 is meshed with the four first gears 15, a moving block 12 is sleeved on the screw rod 11 in a threaded manner, the moving block 12 is slidably mounted on the inner wall of the side of the corresponding mounting groove 10 far away from the opening of the moving block, connecting rods 13 which are obliquely arranged are hinged on the side of the two opposite moving blocks 12 far away from each other side, two relative connecting rod 13 symmetries set up, and connecting rod 13 keeps away from one side that corresponding movable block 12 is close to installation pole 7 with arc 9 and articulates mutually, the utility model relates to a rationally, be convenient for adjust drilling mechanism's diameter size according to drilling needs, make it can drill out the hole of different diameters, improve application scope, and be convenient for automatic realization before drilling to telescopic pressing solid operation, reduce the manual potential safety hazard of pressing firmly and bringing of personnel, improve operational safety, satisfy the user demand.

In the utility model, both sides of the top of the movable plate 1 are provided with rectangular perforations, the inner wall of the rectangular perforations is connected with the outer side of the corresponding support plate 101 in a sliding way, two first rectangular holes are arranged at the top of the movable plate 1, the inner wall of the first rectangular hole is connected with the outer side of the corresponding L-shaped positioning rod 4 in a sliding way, the bottom of the clip 3 is fixedly bonded with a clip antiskid rubber, the inner wall of the bottom of the mounting groove 10 is provided with a rotating groove, the inner wall of the rotating groove is fixedly sleeved with a first bearing, the inner wall of the top of the mounting groove 10 is provided with a circular hole, the circular hole is communicated with the mounting hole 14, the inner ring of the circular hole is fixedly sleeved with a second bearing, the inner ring of the second bearing and the inner ring of the first bearing are fixedly sleeved with the outer side of the corresponding screw rod 11, the inner wall of the side of the mounting groove 10 far away from the opening is provided with a first groove, the inner wall of the side of the first groove far away from the opening is fixedly connected with a T-shaped slide rail, one side fixedly connected with slider that the corresponding arc 9 is kept away from to movable block 12, and the top and the bottom T shape spout that is the opening setting are seted up to one side that the corresponding movable block 12 was kept away from to the slider, T shape spout and the T shape slide rail sliding connection who corresponds, threaded hole is seted up at the top of movable block 12, threaded hole and the screw rod 11 threaded connection who corresponds, and four sides of drill bit 8 all inlay and are equipped with the ball, and one side that arc 9 is close to drill bit 8 and the ball fixed connection who corresponds, the utility model relates to a rationally, be convenient for adjust drilling mechanism's diameter size according to drilling needs, make it can drill out the hole of different diameters, improve application scope, and be convenient for realize the solid operation to telescopic pressure before drilling automatically, reduce the manual potential safety hazard that brings of pressing of personnel, improve the operational safety, satisfy the user demand.

The working principle is as follows: when the diameter of the drilling mechanism is adjusted according to the size of a hole to be drilled, the first motor 17 is started in the forward direction, the output shaft of the first motor 17 drives the second gear 16 to rotate, the second gear 16 drives the four first gears 15 to rotate, the first gears 15 drive the corresponding screw rods 11 to rotate, under the action of threaded holes formed in the moving blocks 12, the screw rods 11 rotate to drive the corresponding moving blocks 12 to move upwards, the moving blocks 12 drive the corresponding sliding blocks to slide on the T-shaped sliding rails, the moving blocks 12 upwards press the corresponding connecting rods 13 to move and rotate, the connecting rods 13 drive the corresponding arc-shaped plates 9 to rotate, so that the four arc-shaped plates 9 rotate in the directions far away from each other, the corresponding elastic shielding cloth 18 is stretched while the arc-shaped plates 9 rotate, the diameter of the drilling mechanism is changed while the arc-shaped plates 9 rotate, and when the size of the drilling mechanism is adjusted according to actual needs, stopping the first motor 17, and under the action of the thread locking force of the threaded hole and the corresponding screw rod 11, fixing the arc-shaped plate 9, completing the adjustment, so that the diameter of the drilling mechanism can be conveniently adjusted according to the drilling requirement, holes with different diameters can be drilled, and the application range is improved;

when drilling operation is carried out, a sleeve is placed on the mounting seat 100, the position of the sleeve needing drilling is arranged below a drilling mechanism, then the electric telescopic rod 103 is started in a forward direction, an output shaft of the electric telescopic rod 103 drives the movable plate 1 to slide downwards on the two supporting plates 101, the movable plate 1 drives the driving motor 6 to move downwards, the driving motor 6 drives the drilling mechanism to move downwards, meanwhile, the movable plate 1 drives the clip pressing frame 3 to move downwards through the two L-shaped positioning rods 4, the clip pressing frame 3 drives the clip protective rubber to move downwards to be in contact with the top of the sleeve, the clip pressing frame 3 and the L-shaped positioning rods 4 are limited to move downwards continuously, the movable plate 1 continues to move downwards and slides downwards on the two L-shaped positioning rods 4, the spring 5 is compressed while the movable plate 1 moves downwards, the movable plate 1 gives downward pressure to the clip pressing frame 3 through the spring 5, the clip 3 applies a downward pressure to the sleeve through the anti-slip rubber sheet to fix the sleeve on the top of the mounting seat 100, the moving plate 1 moving downward continuously drives the driving motor 6 to move downward continuously, the driving motor 6 drives the drilling mechanism to move downward, the driving motor 6 is started forward, the output shaft of the driving motor 6 drives the mounting rod 7 to rotate, the mounting rod 7 drives the drill bit 8 to rotate, the drill bit 8 drives the four arc-shaped plates 9 to rotate, so that the drill bit 8 and the four arc-shaped plates 9 move downward simultaneously, the drill bit 8 firstly drills into the sleeve downward, the arc-shaped plates 9 rotating and moving downward simultaneously move downward along with the drill bit 8 to drill the sleeve, after drilling, the driving motor 6 and the electric telescopic rod 103 can be started reversely, the electric telescopic rod 103 drives the driving motor 6 to move upward through the anti-slip rubber sheet, the driving motor 6 drives the drilling mechanism to rotate reversely and move out of the drill hole on the sleeve, drilling is completed, so that the sleeve can be automatically pressed and fixed before drilling, potential safety hazards caused by manual pressing and fixing of personnel are reduced, and the operation safety is improved.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an automatic perforating device with adjustable chain sleeve uses, includes mount pad (100), the top of mount pad (100) is equipped with driving motor (6), and drilling mechanism is installed to driving motor's (6) output shaft bottom, a serial communication port, equal fixedly connected with backup pad (101) in the top both sides of mount pad (100), the same roof (102) of top fixedly connected with of two backup pads (101), the bottom of roof (102) is inlayed and is equipped with electric telescopic handle (103), sliding sleeve is equipped with same movable plate (1) on two backup pads (101), the output shaft bottom of electric telescopic handle (103) and the top fixed connection of movable plate (1), driving motor (6) are inlayed in the bottom of movable plate (1), the top of mount pad (100) has been seted up and has been dodged hole (2), dodge hole (2) be located drilling mechanism under and cooperate with drilling mechanism, the movable plate (1) is provided with an elastic pressing and fixing mechanism which is sleeved on the drilling mechanism;

drilling mechanism is including installation pole (7), fixed mounting is in drill bit (8) and the rotation of installation pole (7) bottom and is installed four arcs (9) in drill bit (8) outside, the top of installation pole (7) and the output shaft bottom fixed connection of driving motor (6), installation pole (7) are located between four arcs (9), establish to the slope cross-section bottom the outside of arc (9), four arcs (9) form a drilling rod, the outside of arc (9) is equipped with drill bit twill slot, it shelters from cloth (18) to bond between two adjacent arcs (9) and is fixed with same elasticity, install on installation pole (7) and cooperate upset adjustment mechanism with four arcs (9).

2. The adjustable automatic punching device for the chain sleeve according to claim 1, wherein the elastic pressing and fixing mechanism comprises a clip pressing frame (3) located below the movable plate (1), the clip pressing frame (3) is sleeved on the drilling mechanism, both sides of the top of the clip pressing frame (3) are fixedly connected with L-shaped positioning rods (4), the two L-shaped positioning rods (4) are symmetrically arranged, the top of each L-shaped positioning rod (4) extends to the upper side of the movable plate (1), the movable plate (1) is slidably sleeved on the two L-shaped positioning rods (4), two springs (5) are fixedly connected between the top of the clip pressing frame (3) and the bottom of the movable plate (1), the springs (5) are movably sleeved on the corresponding L-shaped positioning rods (4), and the driving motor (6) is located between the two L-shaped positioning rods (4).

3. The adjustable automatic punching device for the chain sleeve according to claim 1, wherein the overturning adjusting mechanism comprises four mounting grooves (10), the four mounting grooves (10) are respectively arranged on the left side, the right side, the front side and the rear side of the mounting rod (7), a screw (11) is rotatably mounted on the inner wall of the bottom of the mounting groove (10), a mounting hole (14) is formed in the top of the right side of the mounting rod (7), the mounting hole (14) is positioned above the four mounting grooves (10), the top end of the screw (11) extends to the upper side of the mounting hole (14) and is fixedly connected with a first gear (15), a first motor (17) is fixedly mounted on the inner wall of the top of the mounting hole (14), a second gear (16) is fixedly mounted at the bottom end of an output shaft of the first motor (17), and the second gear (16) is positioned among the four first gears (15), second gear (16) and four first gear (15) mesh mutually, threaded sleeve is equipped with movable block (12) on screw rod (11), movable block (12) slidable mounting is kept away from on its open-ended one side inner wall in mounting groove (10) that correspond, one side that two relative movable blocks (12) kept away from each other all articulates there is connecting rod (13) that the slope set up, two relative connecting rod (13) symmetry sets up, one end that corresponding movable block (12) was kept away from in connecting rod (13) is close to one side of installing pole (7) with arc (9) and is articulated mutually.

4. The adjustable automatic punching device for the chain sleeve as claimed in claim 1, wherein both sides of the top of the moving plate (1) are provided with rectangular through holes, and the inner walls of the rectangular through holes are slidably connected with the outer sides of the corresponding supporting plates (101).

5. The adjustable automatic punching device for the chain sleeve as claimed in claim 2, wherein the top of the moving plate (1) is provided with two first rectangular holes, the inner walls of the first rectangular holes are slidably connected with the outer sides of the corresponding L-shaped positioning rods (4), and the bottom of the clip-shaped pressing frame (3) is fixedly bonded with clip-shaped anti-slip rubber.

6. The adjustable automatic punching device for the chain sleeve as claimed in claim 3, wherein a rotating groove is formed on the bottom inner wall of the mounting groove (10), a first bearing is fixedly sleeved in the rotating groove, a circular hole is formed on the top inner wall of the mounting groove (10), the circular hole is communicated with the mounting hole (14), a second bearing is fixedly sleeved in the circular hole, and the inner ring of the second bearing and the inner ring of the first bearing are fixedly sleeved on the outer side of the corresponding screw (11).

7. The adjustable automatic punching device for the chain sleeve as claimed in claim 3, wherein a first groove is formed on an inner wall of the side of the mounting groove (10) away from the opening thereof, a T-shaped sliding rail is fixedly connected to an inner wall of the side of the first groove away from the opening thereof, a sliding block is fixedly connected to a side of the moving block (12) away from the corresponding arc-shaped plate (9), a T-shaped sliding groove is formed on a side of the sliding block away from the corresponding moving block (12), wherein the top and the bottom of the T-shaped sliding groove are both provided with openings, and the T-shaped sliding groove is slidably connected with the corresponding T-shaped sliding rail.

8. The adjustable automatic punching device for the chain sleeve as claimed in claim 3, wherein the top of the moving block (12) is provided with a threaded hole, and the threaded hole is in threaded connection with the corresponding screw (11).

9. The adjustable automatic punching device for the chain sleeve according to claim 1, wherein the four sides of the drill bit (8) are embedded with balls, and one side of the arc-shaped plate (9) close to the drill bit (8) is fixedly connected with the corresponding balls.