CN111922438B

CN111922438B - Cylinder chamfering device

Info

Publication number: CN111922438B
Application number: CN202010814823.3A
Authority: CN
Inventors: 吴有军; 张丽丽; 张子武
Original assignee: 章文中
Current assignee: Zhang Wenzhong
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-08-31
Anticipated expiration: 2040-08-13
Also published as: CN111922438A

Abstract

The invention discloses a cylindrical chamfering device, which relates to the technical field of chamfering processing equipment and comprises a base and a rotating support, wherein a rotatable fixed seat is arranged below the rotating support, a push plate sliding along the length direction of a notch is arranged in a U-shaped groove formed in the fixed seat, a third spring is arranged on the side of the push plate far away from the notch, one end of the third spring is fixedly connected with the push plate, the other end of the third spring is fixedly connected with the fixed seat, a rotatable limiting fixture block is arranged on one side of the push plate and is rotatably connected with the fixed seat, a torsion spring is arranged on the limiting fixture block, the limiting fixture block is clamped with the push plate close to the notch end, a stop block is arranged on one side of the fixed seat, after the processing of a workpiece is finished, the second cylinder retracts to drive the fixed seat to rotate, so that the limiting fixture block is contacted with the stop block and is extruded and rotated, the limiting fixture block is separated from the push plate, and the workpiece is pushed out of the fixed seat under the action of the third spring, the discharging is completed, and the chamfering processing efficiency is improved.

Description

Cylinder chamfering device

Technical Field

The invention belongs to the technical field of chamfering processing equipment, and particularly relates to a cylindrical chamfering device.

Background

In order to remove burrs produced by machining on a part and also to facilitate assembly of the part, the end of the part is generally chamfered. The chamfer mainly is that the slope of a certain length is done along angle cars such as 30, 45 and 60 or with modes such as drilling machine in machining in axle and hole, mainly is for the convenience of the commonly used mark mode of installation, and the mode of chamfer processing is often polished or is through lathe processing for artifical handheld grinding device, needs artifical clamping to unload, and machining efficiency is low, and the precision of simultaneous processing is not high, and the type of chamfer switches inconveniently.

Chinese patent CN20621640U discloses a chamfer processing equipment, including frame, processing platform, pay-off carousel, feeding mechanism, chamfer mechanism, processing platform sliding connection is in the frame, the pay-off carousel rotates to be connected on processing platform, feeding mechanism connects in the frame, chamfer mechanism connects in the frame. A chamfer processing equipment can be through feeding mechanism in the work piece processing groove of work piece stacking to the charging tray of treating the part of processing, along with the rotation of charging tray, process the part of work piece processing inslot in proper order, realize automatic feeding processing, improve work efficiency, add the part of man-hour to charging tray and charging tray at the chamfer and fix, prevent the charging tray shake, make the chamfer precision improve, but the suitability is relatively poor, can not realize the automatic discharge of work piece.

Disclosure of Invention

In view of the shortcomings in the prior art, the present invention is directed to a cylindrical chamfering apparatus to solve the problems set forth in the background art.

The purpose of the invention can be realized by the following technical scheme: a cylindrical chamfering device comprises a base and a rotating support, wherein the rotating support is rotatably connected with the base, a rotatable fixed seat is arranged below the rotating support, the fixed seat is rotatably connected with the base, a push plate which slides along the length direction of a notch is arranged in a U-shaped groove formed in the fixed seat, a third spring is arranged on the side, away from the notch, of the push plate, one end of the third spring is fixedly connected with the push plate, and the other end of the third spring is fixedly connected with the fixed seat;

a rotatable limiting fixture block is arranged on one side of the push plate and is rotationally connected with the fixing seat, a torsion spring is arranged on the limiting fixture block, one end of the torsion spring is fixedly connected with the limiting fixture block, the other end of the torsion spring is fixedly connected with the fixing seat, and the limiting fixture block is clamped with the push plate close to the notch end;

one side of the fixing seat is provided with a stop block, and when the fixing seat rotates by 90 degrees, the limiting clamping block is in contact with the stop block and is extruded and rotated, so that the limiting clamping block is separated from the push plate.

As a further scheme of the invention, a rotatable driving turntable is arranged at the bottom end of the fixed seat, the bottom end of the fixed seat is fixedly connected with the driving turntable, an eccentric cylinder is eccentrically arranged on the bottom surface of the driving turntable, the eccentric cylinder is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with a slidable sliding block, and the sliding block is arranged on the workpiece feeding side.

As a further scheme of the invention, a first spring is arranged at the end, far away from the connecting rod, of the sliding block, one end of the first spring is fixedly connected with the sliding block, and the other end of the first spring is fixedly connected with the side plate of the base.

As a further scheme of the invention, a sliding L-shaped fixing plate is arranged on the side, close to the connecting rod, of the sliding block, the side, close to the sliding block, of the L-shaped fixing plate is fixedly connected with a piston rod of a second air cylinder, the second air cylinder is fixedly arranged on the base, a second clamping plate used for fixing a workpiece is arranged on the end, close to the fixing seat, of the sliding block, and the second clamping plate is fixedly connected with the sliding block.

As a further scheme of the invention, a slidable guide plate is arranged below the second clamping plate, a guide chute for feeding workpieces is formed in the guide plate, the guide chute in the guide plate is opposite to a notch of the U-shaped groove in the fixing seat, a second spring is arranged at the end, far away from the fixing seat, of the guide plate, the second spring is arranged between the L-shaped fixing plate and the base, and two ends of the second spring are respectively fixedly connected with the second spring and the base.

As a further scheme of the invention, a first clamping plate opposite to a second clamping plate is arranged at the top of the fixed seat, namely the first clamping plate and the second clamping plate are matched to press a workpiece for fixing, the first clamping plate is connected with the fixed seat in a sliding manner, the first clamping plate is provided with a bolt, and the bolt is in threaded connection with the fixed seat.

As a further scheme of the invention, the rotating support is arranged right above the fixed seat, the top end of the rotating support is fixedly connected with the output shaft of the motor, the bottom end of the motor shell is fixed on a sliding plate, two ends of the sliding plate are slidably connected with the base, the top of the sliding plate is provided with a first cylinder, the sliding plate is fixedly connected with a piston rod of the first cylinder, and the base of the first cylinder is fixedly arranged on a top plate arranged on the base.

As a further scheme of the invention, a rectangular groove is formed in the center of the bottom surface of the rotating support, slidable sliding supports are symmetrically arranged in the rectangular groove, the sliding supports slide along the rectangular groove, a rotatable blade fixing seat is arranged at the bottom end of each sliding support, and the blade fixing seats are rotatably connected with the sliding supports.

As a further scheme of the invention, a threaded hole is formed in the end, away from the blade fixing seat, of the sliding support, a rotatable screw is arranged in the threaded hole, the sliding support is in threaded connection with the screw, and the screw is in rotational connection with the rotating support.

As a further scheme of the invention, a plurality of first limiting holes are circumferentially distributed on the side surface of the bottom end of the sliding support in an array manner by taking the hinged axis of the sliding support and the blade fixing seat as the circle center, a plurality of second limiting holes are distributed on the blade fixing seat in an array manner relative to the circumference, the first limiting holes and the second limiting holes are opposite in position, the apertures of the first limiting holes and the second limiting holes are consistent, adjusting blocks are arranged on two sides of the sliding support, the adjusting blocks are connected with the sliding support in a sliding manner, and round rods in interference fit with the first limiting holes are arranged on the adjusting blocks.

The invention has the beneficial effects that: the invention discloses a cylindrical chamfering device, which realizes the functions of automatic feeding, clamping and fixing and automatic discharging of workpieces, simultaneously provides processing of various angles, is convenient and quick for angle switching, improves the applicability of the cylindrical chamfering device, and simultaneously improves the working efficiency of chamfering.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the construction of the transmission portion of the present invention;

FIG. 4 is a schematic structural view of the fixing base of the present invention;

FIG. 5 is a schematic view of a second splint of the present invention;

FIG. 6 is a schematic view of the construction of the pivoting support of the present invention;

FIG. 7 is a schematic structural view of the shoe of the present invention;

FIG. 8 is a schematic view of the blade mount of the present invention;

FIG. 9 is a schematic view of the structure of the conditioning block of the present invention;

in the figure: a base-1, a pump machine-2, a fixed seat-3, a first clamping plate-4, a bolt-5, a rotating support-6, a dust suction nozzle-7, a sliding plate-8, a motor-9, a first cylinder-10, a stop-12, an L-shaped fixed plate-13, a sliding block-14, a first spring-15, a guide plate-16, a second clamping plate-17, a second spring-18, a second cylinder-19, a driving turntable-20, an eccentric cylinder-201, a connecting rod-21, a third spring-31, a push plate-32, a limiting clamping block-33, a screw rod-61, a sliding support-62, a threaded hole-621, a first limiting hole-622, a blade fixed seat-63, a first limiting hole-631, a placing groove-632, a bolt-632, a rotating support-6, a dust suction nozzle-7, a sliding plate-20, a driving turntable-201, a connecting rod-21, a third spring-31, a push plate-32, a limiting clamping block-33, a screw rod-61, a sliding support-62, a threaded hole-621, a first limiting hole-622, a blade fixed seat-63, a first limiting hole-631, a positioning groove-632, a positioning groove, a positioning device, a positioning, An adjusting block-64, a blade-65 and a rectangular groove-66.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 9, in the embodiment of the present invention, a cylindrical chamfering device includes a base 1 and a rotating support 6, where the rotating support 6 is rotatably connected to the base 1, a rotatable fixing seat 3 is disposed below the rotating support 6, the fixing seat 3 is rotatably connected to the base 1, a push plate 32 sliding along a length direction of a notch is disposed in a U-shaped groove formed in the fixing seat 3, a third spring 31 is disposed on a side of the push plate 32 away from the notch, one end of the third spring 31 is fixedly connected to the push plate 32, and the other end of the third spring 31 is fixedly connected to the fixing seat 3; after the chamfering process of the workpiece is completed, the pushing plate 32 pushes the workpiece out of the fixed seat 3 by the elastic force of the third spring 31 and slides into the workpiece storage box.

A rotatable limiting clamping block 33 is arranged on one side of the push plate 32, the limiting clamping block 33 is rotatably connected with the fixed seat 3, a torsion spring is arranged on the limiting clamping block 33, one end of the torsion spring is fixedly connected with the limiting clamping block 33, the other end of the torsion spring is fixedly connected with the fixed seat 3, and the limiting clamping block 33 is clamped with the push plate 32 close to the notch end; the limit fixing or loosening of the push plate 32 is realized by controlling the rotation of the limit fixture block 33.

The automatic chamfering machine is characterized in that a stop block 12 is arranged on one side of the fixed seat 3, when the fixed seat 3 rotates by 90 degrees, the limiting clamping block 33 is in contact with the stop block 12 and is extruded and rotated, so that the limiting clamping block 33 is separated from the push plate 32, after the workpiece is machined, the fixed seat 3 is driven by the feeding mechanism to rotate, when the fixed seat 3 rotates by 90 degrees, the limiting clamping block 33 is in contact with the stop block 12 and is pressed and rotated, so that the push plate 32 is separated from the limiting position of the limiting clamping block 33, at the moment, the notch of the fixed seat 3 is opposite to the side of a workpiece container, the push plate 32 is separated from the limiting of the limiting clamping block 33, the workpiece is ejected out of the fixed seat 3 under the elastic force action of the third spring 31 and slides into the workpiece container, and compared with the existing chamfering machine, the automatic chamfering machine can automatically unload materials, is convenient to operate, and the chamfering efficiency is improved.

As shown in fig. 3, in specific implementation, a rotatable driving turntable 20 is disposed at the bottom end of the fixing base 3, the bottom end of the fixing base 3 is fixedly connected with the driving turntable 20, an eccentric cylinder 201 is eccentrically disposed on the bottom surface of the driving turntable 20, the eccentric cylinder 201 is hinged to one end of a connecting rod 21, the other end of the connecting rod 21 is hinged to a slidable slider 14, the slider 14 is disposed on a workpiece feeding side, after chamfering is completed, the slider 14 is moved to the right, the slider 14 drives the connecting rod 21 to move to the left, and the connecting rod 21 drives the driving turntable 20 to rotate counterclockwise and drives the.

Preferably, the end, far away from the connecting rod 21, of the sliding block 14 is provided with a first spring 15, one end of the first spring 15 is fixedly connected with the sliding block 14, the other end of the first spring is fixedly connected with a side plate of the base 1, after the workpiece is separated from the fixed seat 3, the sliding block 14 is loosened, the sliding block 14 drives the sliding block 14 to move leftwards under the elastic force action of the first spring 15, the connecting rod 21 is driven to move leftwards, the connecting rod 21 drives the driving turntable 20 to rotate clockwise, the driving turntable 20 drives the fixed seat 3 to rotate clockwise, namely, the notch of the fixed seat 3 is opposite to the feeding direction, and the production of the next workpiece is started.

Preferably, as shown in fig. 2, a sliding L fixing plate 13 is disposed on the side of the slider 14 close to the connecting rod 21, the side of the L fixing plate 13 close to the slider 14 is fixedly connected to a piston rod of a second cylinder 19, the second cylinder 19 is fixedly mounted on the base 1, a second clamping plate 17 for fixing a workpiece is disposed on the end of the slider 14 close to the fixing base 3, the second clamping plate 17 is fixedly connected to the slider 14, when feeding is performed, the piston rod of the second cylinder 19 is started to extend out, the L fixing plate 13 is driven to move leftward, the L fixing plate 13 drives the second clamping plate 17 to move leftward, that is, the second clamping plate 17 carries the workpiece to slide into a slot of the fixing base 3, the workpiece extrusion pushing plate 32 moves leftward, so that the pushing plate 32 is clamped to the limiting clamping block 33, after the workpiece is processed, the second cylinder 19 retracts, the L fixing plate 13 is driven to move, a bottom cross plate of the L fixing plate 13 abuts against the slider 14, and the slider 14 is driven to move rightward, namely, the fixed seat 3 is driven to rotate clockwise, and automatic discharging is realized.

Preferably, as shown in fig. 1 and 5, a first clamping plate 4 opposite to the second clamping plate 17 is arranged at the top of the fixing seat 3, that is, the first clamping plate 4 and the second clamping plate 17 are matched to press the workpiece to be fixed, the first clamping plate 4 is slidably connected with the fixing seat 3, a bolt 5 is arranged in the first clamping plate 4 and is provided with 41, the bolt 5 is in threaded connection with the fixing seat 3, the position of the first clamping plate 4 on the fixing seat 3 is adjusted according to the ground diameter of the workpiece, so that the workpiece is coaxial with a tool base for chamfering, the chamfering tool is suitable for chamfering cylindrical workpieces of various sizes, and the application range is wide.

Preferably, as shown in fig. 1 and 2, a slidable guide plate 16 is arranged below the second clamping plate 17, a guide chute for feeding the workpiece is formed in the guide plate 16, the guide chute in the guide plate 16 is opposite to a U-shaped groove opening of the fixing base 3, a second spring 18 is arranged at the end of the guide plate 16 away from the fixing base 3, the second spring 18 is arranged between the L-shaped fixing plate 13 and the base 1, and two ends of the second spring 18 are respectively and fixedly connected with the second spring 18 and the base 1, during production, the workpiece can be conveyed into the guide plate 16 by an intermittent conveyor belt, then the second clamping plate 17 is driven by the second cylinder 19 to push the workpiece into the fixing base 3, and the workpiece is fixedly clamped by the first clamping plate 4, because the fixing base 3 is driven to rotate when the second cylinder 19 retracts, the guide plate 16 is arranged to be slidable, so as to avoid interference with the fixing base 3, and after the fixing base 3 recovers to the initial position, under the action of the elastic force of the second spring 18, the guide plate 16 moves leftwards and is attached to the fixed seat 3, and the normal processing of the second workpiece is not influenced.

As shown in fig. 1, the top end of the rotating support 6 is fixedly connected with an output shaft of a motor 9, the bottom end of a shell of the motor 9 is fixed on a sliding plate 8, two ends of the sliding plate 8 are slidably connected with a base 1, a first cylinder 10 is arranged at the top of the sliding plate 8, the sliding plate 8 is fixedly connected with a piston rod of the first cylinder 10, the base of the first cylinder 10 is fixedly arranged on a top plate arranged on the base 1, the machining feeding amount of the rotating support 6 is controlled through the first cylinder 10 according to the height of a workpiece, namely the machining size, and the operation is simple, stable and reliable.

As shown in fig. 6-9, a rectangular groove 66 is formed in the center of the bottom surface of the rotating support 6, slidable sliding supports 62 are symmetrically arranged in the rectangular groove 66, the sliding supports 62 slide along the rectangular groove 66, a rotatable blade fixing seat 63 is arranged at the bottom end of the sliding support 62, the blade fixing seat 63 is rotatably connected with the sliding support 62, the position of the sliding support 62 can be adjusted according to the diameter of a workpiece, the requirements of processing parts with various diameters are met, the angle size of a chamfer can be adjusted, the processing of various chamfers is met, a mounting groove 632 is formed in the blade surface of the blade fixing seat 63, a blade 65 is embedded in the blade fixing seat 63 through the mounting groove 632, and the other side of the blade is fastened through screws, so that the replacement is convenient.

Preferably, a threaded hole 621 is formed in the end of the sliding support 62 away from the blade fixing seat 63, a rotatable screw 61 is arranged in the threaded hole 621, the sliding support 62 is in threaded connection with the screw 61, and the screw 61 is in rotational connection with the rotating support 6, that is, the position of the sliding support 62 is adjusted by rotating the screw 61.

Preferably, as shown in fig. 6 to 9, a plurality of first limiting holes 622 are circumferentially distributed on the side surface of the bottom end of the sliding support 62 in an array manner, taking the hinge axis of the sliding support 62 and the blade fixing seat 63 as the center of a circle, a plurality of second limiting holes 631 are circumferentially distributed on the blade fixing seat 63 in an array manner, the first limiting holes 622 and the second limiting holes 631 are opposite in position, the first limiting holes 622 and the second limiting holes 631 have the same aperture, adjusting blocks 64 are arranged on both sides of the sliding support 62, the adjusting blocks 64 are slidably connected with the sliding support 62, round rods in interference fit with the first limiting holes 622 are arranged on the adjusting blocks 64, according to the processing requirements of the chamfering angle, the blade fixing seat 63 is rotated to realize the adjustment of the chamfering angle, and then the adjusting blocks 64 are inserted into the second limiting holes 631 and the first limiting holes 622 for limiting and fixing.

Preferably, keeping away from the feeding side at fixing base 3 and being equipped with dust absorption mouth 7, dust absorption mouth 7 fixed mounting is on 01, and dust absorption mouth 7 is connected pump machine 2 through trachea and pump machine 2 and is installed on 01, and when carrying out the chamfer processing, start pump machine 2 work, the cuttings that the work piece processing produced passes through dust absorption mouth 7 and adsorbs the recovery, has reduced dust pollution in the air, has ensured that the user is healthy.

The working principle of the invention is as follows: the workpiece is pushed into the fixed seat 3 along the guide plate 16 through the second clamping plate 17, the workpiece extrudes the push plate 32 and is clamped and fixed with the limiting clamping block 33, the second clamping plate 17 is matched with the first clamping plate 4 to clamp and fix the workpiece for chamfering, the starting motor 9 drives the rotating support 6 to rotate and drives the blade 65 to rotate, the first air cylinder 10 is started to control the sliding plate 8 to move downwards to chamfer the workpiece, after the processing is finished, the first air cylinder 10 is started to retract to drive the rotating support 6 to return to an upper dead point, the second air cylinder 19 is started to retract to drive the second clamping plate 17 to move rightwards, the second clamping plate 17 is separated from clamping the workpiece, when the L fixing plate 13 supports against the sliding block 14 moving rightwards, the sliding block 14 is driven to move rightwards, the connecting rod 21 is driven by the sliding block 14 to move rightwards, the driving rotating disc 20 drives the fixed seat 3 to rotate clockwise, and when the rotating angle reaches 90 degrees, stopper 12 extrudes spacing fixture block 33 anticlockwise rotation, and push pedal 32 breaks away from spacing fixture block 33's restriction, slides to 3 notches of fixing base under the effect of third spring 31, pops out fixing base 3 with the work piece under the instantaneous action to drop to the work piece container in, realize the automatic discharge function, reduced artifical demand, improved the efficiency of work piece processing.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", etc., indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the method is simple. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the spirit and scope of the invention, and any equivalents thereto, such as those skilled in the art, are intended to be embraced therein.

Claims

1. A cylindrical chamfering device comprises a base (1) and a rotating support (6), wherein the rotating support (6) is rotatably connected with the base (1), and is characterized in that a rotatable fixing seat (3) is arranged below the rotating support (6), the fixing seat (3) is rotatably connected with the base (1), a push plate (32) sliding along the length direction of a notch is arranged in a U-shaped groove formed in the fixing seat (3), a third spring (31) is arranged on the side, away from the notch, of the push plate (32), one end of the third spring (31) is fixedly connected with the push plate (32), and the other end of the third spring is fixedly connected with the fixing seat (3);

a rotatable limiting clamping block (33) is arranged on one side of the push plate (32), the limiting clamping block (33) is rotatably connected with the fixed seat (3), a torsion spring is arranged on the limiting clamping block (33), one end of the torsion spring is fixedly connected with the limiting clamping block (33), the other end of the torsion spring is fixedly connected with the fixed seat (3), and the limiting clamping block (33) is clamped with the push plate (32) close to the notch end;

a stop block (12) is arranged on one side of the fixed seat (3), and when the fixed seat (3) rotates by 90 degrees, the limiting clamping block (33) is contacted with the stop block (12) and is extruded and rotated, so that the limiting clamping block (33) is separated from the push plate (32);

the bottom end of the fixed seat (3) is provided with a rotatable driving turntable (20), the bottom end of the fixed seat (3) is fixedly connected with the driving turntable (20), the bottom surface of the driving turntable (20) is eccentrically provided with an eccentric cylinder (201), the eccentric cylinder (201) is hinged with one end of a connecting rod (21), the other end of the connecting rod (21) is hinged with a slidable sliding block (14), and the sliding block (14) is arranged on the workpiece feeding side;

a first spring (15) is arranged at the end, far away from the connecting rod (21), of the sliding block (14), one end of the first spring (15) is fixedly connected with the sliding block (14), and the other end of the first spring is fixedly connected with a side plate of the base (1); slider (14) are close to connecting rod (21) side and are equipped with gliding L fixed plate (13), L fixed plate (13) are close to slider (14) side and second cylinder (19) piston rod fixed connection, second cylinder (19) fixed mounting is on base (1), slider (14) are close to fixing base (3) end and are equipped with second splint (17) that are used for fixed work piece, second splint (17) and slider (14) fixed connection.

2. The cylindrical chamfering device according to claim 1, wherein the rotating support (6) is arranged right above the fixed seat (3), the top end of the rotating support (6) is fixedly connected with an output shaft of the motor (9), the bottom end of a shell of the motor (9) is fixed on a sliding plate (8), two ends of the sliding plate (8) are slidably connected with the base (1), a first cylinder (10) is arranged at the top of the sliding plate (8), the sliding plate (8) is fixedly connected with a piston rod of the first cylinder (10), and the base of the first cylinder (10) is fixedly arranged on a top plate arranged on the base (1).

3. The cylindrical chamfering device according to claim 2, wherein a rectangular groove (66) is formed in the center of the bottom surface of the rotating support (6), slidable sliding supports (62) are symmetrically arranged in the rectangular groove (66), the sliding supports (62) slide along the rectangular groove (66), a rotatable blade fixing seat (63) is arranged at the bottom end of the sliding support (62), and the blade fixing seat (63) is rotatably connected with the sliding support (62).

4. The cylindrical chamfering device according to claim 3, wherein a threaded hole (621) is formed in the end, away from the blade fixing seat (63), of the sliding support (62), a rotatable screw (61) is arranged in the threaded hole (621), the sliding support (62) is in threaded connection with the screw (61), and the screw (61) is in rotational connection with the rotating support (6).

5. The cylindrical chamfering device according to claim 4, wherein a plurality of first limiting holes (622) are distributed on the side surface of the bottom end of the sliding support (62) in a circumferential array with the hinge axis of the sliding support (62) and the blade fixing seat (63) as the center of a circle, a plurality of second limiting holes (631) are distributed on the blade fixing seat (63) in a circumferential array, the first limiting holes (622) and the second limiting holes (631) are opposite in position, the first limiting holes (622) and the second limiting holes (631) have the same aperture, adjusting blocks (64) are arranged on two sides of the sliding support (62), the adjusting blocks (64) are connected with the sliding support (62) in a sliding manner, and round rods in interference fit with the first limiting holes (622) are arranged on the adjusting blocks (64).