CN111015231A

CN111015231A - End part trimming mechanism for circular tubular pile end plate

Info

Publication number: CN111015231A
Application number: CN201911351582.7A
Authority: CN
Inventors: 俞敏芳
Original assignee: Zhejiang Hongyuan Metal Products Co Ltd
Current assignee: Zhejiang Hongyuan Metal Products Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-17
Anticipated expiration: 2039-12-25
Also published as: CN111015231B

Abstract

The invention discloses an end part trimming mechanism of a circular tubular pile end plate, which comprises a workbench, wherein support columns are fixedly arranged below four corners of the workbench, a fixing device, an end surface polishing device, an edge polishing device and a chamfering device are arranged on the workbench, the fixing device comprises a first bearing, a transmission shaft is fixedly arranged in the first bearing, a driving device is arranged at the lower end of the transmission shaft, a square steel column is fixedly arranged at the upper end of the transmission shaft, mounting holes are respectively formed in four sides of the square steel column close to the upper end, first hydraulic cylinders are fixedly arranged in the mounting holes, and arc-shaped inner support blocks are fixedly arranged at one ends of telescopic rods of the first hydraulic cylinders. Has the advantages that: can carry out the terminal surface simultaneously to tubular pile end plate blank ring and polish, throw limit and chamfer to can adjust the angle size of chamfer through control electric telescopic handle's flexible, degree of mechanization is high moreover, the operation of not only being convenient for, moreover great increase machining efficiency.

Description

End part trimming mechanism for circular tubular pile end plate

Technical Field

The invention relates to the technical field of tubular pile end plate processing, in particular to an end part trimming mechanism of a circular tubular pile end plate.

Background

The tubular pile end plate is a disc-shaped part, and flanges are used in pairs most commonly in pipeline engineering. In pipeline engineering, flanges are mainly used for the connection of pipelines. The tubular pile end plate is divided into: the flange plate and the flange plate are both used for connecting fittings on equipment, and the purpose of the flange plate and the flange plate is that the equipment is firmer and durable.

The manufacturing process of the circular tubular pile end plate comprises the steps of firstly rolling a plate into a tubular shape, then cutting the tubular pile end plate into a tubular pile end plate blank, welding a seam of the blank to form a complete tubular pile end plate blank ring, and then polishing the upper surface and the lower surface of the circumferential weld of the blank to be flat, wherein the periphery of the circular tubular pile end plate needs to be subjected to edge planing and chamfering in the production process, and the end surface polishing, edge polishing and chamfering processes are performed separately in the existing processing mode, so that the operation is complex, and the processing efficiency is low.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The present invention is directed to an end trimming mechanism for a circular tubular pile end plate, which solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the end part trimming mechanism of the circular tubular pile end plate comprises a workbench, wherein support columns are fixedly arranged below four corners of the workbench, the workbench is provided with a fixing device, an end surface polishing device, an edge polishing device and a chamfering device, the fixing device comprises a first bearing, a transmission shaft is fixedly arranged in the first bearing, a driving device is arranged at the lower end of the transmission shaft, a square steel column is fixedly arranged at the upper end of the transmission shaft, mounting holes are formed in four sides of the square steel column close to the upper end, first hydraulic cylinders are fixedly arranged in the mounting holes, arc-shaped inner support blocks are fixedly arranged at one ends of telescopic rods of the first hydraulic cylinders, a limiting device is arranged above the square steel column, a first side plate is fixedly arranged at one end of the workbench, a second side plate is fixedly arranged at the other end of the workbench, and first fixing plates are fixedly arranged at the upper ends, the end face polishing device comprises two second hydraulic cylinders, the two second hydraulic cylinders are respectively and symmetrically and fixedly arranged on the two first fixing plates, piston rods of the second hydraulic cylinders are fixedly provided with first tool holders, polishing blocks are arranged on the first tool holders, the edge polishing device comprises a third hydraulic cylinder, the third hydraulic cylinder is fixed on the inner wall of the middle part of the first side plate, piston rods of the third hydraulic cylinders are fixedly provided with second tool holders, edge polishing knives are arranged on the second tool holders, the chamfering device comprises fourth hydraulic cylinders, third tool holders and chamfering knives, piston rods of the fourth hydraulic cylinders are fixedly provided with first mounting plates, inner walls of the upper end and the lower end of each first mounting plate are fixedly provided with first hinged supports, the number of the third tool holders is two, one end of the back parts of the third tool holders is fixedly provided with a second hinged support, and the middle parts of the third tool holders are fixedly provided with third hinged supports, first free bearing with it has electric telescopic handle to articulate between the third free bearing, all fixedly in the round hole at second free bearing both ends be equipped with the second bearing, be equipped with the axis of rotation in the second bearing just the equal fixed cover of second bearing is established the axis of rotation outer wall, axis of rotation middle part outer wall is fixed and is equipped with the head rod, the head rod is kept away from axis of rotation one end all with first mounting panel fixed connection, the back of third blade holder is through the fixed angle sensor that is equipped with of second connecting rod just angle sensor's measuring spindle with axis of rotation fixed connection, first curb plate outer wall is fixed and is equipped with second fixed plate and PLC controller, install the touch-control screen through the connecting piece on the second fixed plate, the touch-control screen angle sensor, the hydraulic pump and the electromagnetic directional valve of first pneumatic cylinder, the hydraulic pump and the electromagnetic directional valve of second pneumatic cylinder, The hydraulic pump and the electromagnetic directional valve of the third hydraulic cylinder, the hydraulic pump and the electromagnetic directional valve of the fourth hydraulic cylinder, the electric telescopic rod and the driving device are electrically connected with the PLC.

Further, drive arrangement includes second mounting panel, motor, first belt pulley, second belt pulley and V belt, one side the fixed second mounting panel that is equipped with between the support column, the fixed motor that is equipped with on the second mounting panel, the fixed cover of pivot outer wall of motor is equipped with first belt pulley, the fixed cover of transmission shaft lower extreme outer wall is equipped with the second belt pulley, first belt pulley with through the V belt transmission between the second belt pulley.

Further, stop device includes the fifth pneumatic cylinder, the fifth pneumatic cylinder is fixed under the first fixed plate of first curb plate upper end, just the fifth pneumatic cylinder with the transmission shaft is coaxial, the fixed cover of the piston rod lower extreme outer wall of fifth pneumatic cylinder is equipped with the third bearing, the fixed cassette that is equipped with down of third bearing, the recess of quadrangular pyramid shape is seted up to the cassette lower extreme, just the fixed arch that is equipped with quadrangular pyramid shape in square steel column upper end, the recess with protruding phase-match, the hydraulic pump of fifth pneumatic cylinder and magenetic exchange valve all with PLC controller electric connection.

Further, the connecting piece includes the damping pivot, damping pivot internal fixation is equipped with the erection column, the fixed touch screen that is equipped with on the erection column.

Furthermore, a first clamping groove is formed in the first cutter seat, a plurality of threaded holes are formed in one side of the first clamping groove, bolts are connected in the threaded holes in a threaded mode, and the polishing block is fixedly installed in the first clamping groove through the bolts.

Furthermore, a second clamping groove is formed in the second tool apron, a plurality of threaded holes are formed in one side of the second clamping groove, bolts are connected in the threaded holes in a threaded mode, and the edge polishing tool is fixedly installed in the second clamping groove through the bolts.

Furthermore, a third clamping groove is formed in the third tool apron, a plurality of threaded holes are formed in one side of the third clamping groove, bolts are connected in the threaded holes in a threaded mode, and the chamfering tool is fixedly installed in the third clamping groove through the bolts.

Further, all fixedly under the support column be equipped with the bottom plate just four angles of bottom plate have all seted up the perforation.

Compared with the prior art, the invention has the following beneficial effects:

(1) the pipe pile end plate blank ring polishing device is provided with the workbench, the fixing device, the end surface polishing device, the polishing device and the chamfering device, so that end surface polishing, edge polishing and chamfering can be simultaneously performed on the pipe pile end plate blank ring, the angle of the chamfer can be adjusted by controlling the expansion and contraction of the electric telescopic rod, the degree of mechanization is high, the operation is convenient, and the processing efficiency is greatly improved.

(2) According to the invention, the motor, the first belt pulley, the second belt pulley and the triangular belt are arranged, so that the motor can be used for driving the transmission shaft to rotate through the triangular belt, and the square steel column and the tubular pile end plate blank ring are driven to rotate.

(3) According to the invention, by arranging the fifth hydraulic cylinder, the third bearing, the clamping seat, the groove and the protrusion, the protrusion on the square steel column can be inserted into the groove to limit the square steel column by controlling the extension and retraction of the fifth hydraulic cylinder, so that the square steel column is always vertical to the workbench in the rotating process.

(4) According to the invention, the damping rotating shaft and the mounting column are arranged, so that the touch screen can be rotated, and the orientation of the touch screen can be adjusted.

(5) The support column can be used for fixing the support column on the ground through the anchor bolt by arranging the bottom plate and the through hole.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an end finishing mechanism for a circular pipe pile end plate according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a schematic structural view of a first hydraulic cylinder and a square steel column in an end finishing mechanism of a circular tube pile end plate according to an embodiment of the present invention;

fig. 4 is a structural schematic view of the upper ends of square steel columns in the end finishing mechanism of the circular tube pile end plate according to the embodiment of the invention;

fig. 5 is a schematic structural diagram of a clamping seat in an end finishing mechanism of a circular pipe pile end plate according to an embodiment of the invention;

fig. 6 is a cross-sectional view of a first tool apron in an end finishing mechanism for a circular pipe pile end plate according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a second tool apron in an end finishing mechanism for a circular pipe pile end plate according to an embodiment of the present invention;

fig. 8 is a sectional view of a third tool apron in the end truing mechanism for a circular pipe pile end plate according to an embodiment of the present invention.

Reference numerals:

1. a work table; 2. a support pillar; 3. a first bearing; 4. a drive shaft; 5. a square steel column; 6. mounting holes; 7. a first hydraulic cylinder; 8. an arc-shaped inner supporting block; 9. a first side plate; 10. a second side plate; 11. a first fixing plate; 12. a second hydraulic cylinder; 13. a first tool apron; 14. grinding blocks; 15. a third hydraulic cylinder; 16. a second tool apron; 17. edge polishing knives; 18. a fourth hydraulic cylinder; 19. a third tool apron; 20. chamfering cutter; 21. a first mounting plate; 22. a first hinge base; 23. a second hinge base; 24. a third free bearing; 25. an electric telescopic rod; 26. a second bearing; 27. a rotating shaft; 28. a first connecting rod; 29. a second connecting rod; 30. an angle sensor; 31. a second fixing plate; 32. a PLC controller; 33. a touch screen; 34. a second mounting plate; 35. a motor; 36. a first pulley; 37. a second pulley; 38. a fifth hydraulic cylinder; 39. a third bearing; 40. a card holder; 41. a damping rotating shaft; 42. mounting a column; 43. a groove; 44. a protrusion; 45. a first card slot; 46. a second card slot; 47. a third card slot; 48. a bolt; 49. a base plate; 50. and (5) a pipe pile end plate blank ring.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

the first embodiment is as follows:

referring to fig. 1-8, an end trimming mechanism for a circular tubular pile end plate according to an embodiment of the present invention includes a workbench 1, support pillars 2 are fixedly disposed below four corners of the workbench 1, the workbench 1 is provided with a fixing device, an end surface polishing device, an edge polishing device, and a chamfering device, the fixing device includes a first bearing 3, a transmission shaft 4 is fixedly disposed in the first bearing 3, a driving device is disposed at a lower end of the transmission shaft 4, a square steel column 5 is fixedly disposed at an upper end of the transmission shaft 4, mounting holes 6 are disposed on four sides of the square steel column 5 near the upper end, first hydraulic cylinders 7 are fixedly disposed in the mounting holes 6, arc-shaped inner support blocks 8 are fixedly disposed at one ends of telescopic rods of the first hydraulic cylinders 7, a limiting device is disposed above the square steel column 5, and a first side plate 9 is fixedly disposed at one end of the workbench 1, the other end of the workbench 1 is fixedly provided with a second side plate 10, the upper and lower ends of the first side plate 9 are fixedly provided with first fixing plates 11, the end surface polishing device comprises second hydraulic cylinders 12, the number of the second hydraulic cylinders 12 is two, the second hydraulic cylinders 12 are respectively and symmetrically and fixedly arranged on the two first fixing plates 11, piston rods of the second hydraulic cylinders 12 are respectively and fixedly provided with first tool holders 13, polishing blocks 14 are arranged on the first tool holders 13, the edge polishing device comprises third hydraulic cylinders 15, the third hydraulic cylinders 15 are fixed on the inner wall of the middle part of the first side plate 9, piston rods of the third hydraulic cylinders 15 are fixedly provided with second tool holders 16, edge polishing tools 17 are arranged on the second tool holders 16, the chamfering device comprises fourth hydraulic cylinders 18, third tool holders 19 and chamfering tools 20, piston rods of the fourth hydraulic cylinders 18 are fixedly provided with first mounting plates 21, the inner walls of the upper end and the lower end of the first mounting plate 21 are fixedly provided with first hinged supports 22, the number of the third knife holders 19 is two, one end of the back of each third knife holder 19 is fixedly provided with a second hinged support 23, the middle part of the back of each third knife holder 19 is fixedly provided with a third hinged support 24, an electric telescopic rod 25 is hinged between each first hinged support 22 and the corresponding third hinged support 24, round holes at the two ends of each second hinged support 23 are fixedly provided with second bearings 26, each second bearing 26 is internally provided with a rotating shaft 27, the outer walls of the rotating shafts 27 are fixedly sleeved with the second bearings 26, the outer walls of the middle parts of the rotating shafts 27 are fixedly provided with first connecting rods 28, one ends of the first connecting rods 28, far away from the rotating shafts 27, are fixedly connected with the first mounting plate 21, the back of each third knife holder 19 is fixedly provided with angle sensors 30 through second connecting rods 29, measuring shafts of the angle sensors 30 are fixedly connected with the, the fixed second fixed plate 31 and the PLC controller 32 that are equipped with of 9 outer walls of first curb plate, install touch screen 33 through the connecting piece on the second fixed plate 31, touch screen 33 angle sensor 30 the hydraulic pump and the solenoid directional valve of first pneumatic cylinder 7 the hydraulic pump and the solenoid directional valve of second pneumatic cylinder 12 the hydraulic pump and the solenoid directional valve of third pneumatic cylinder 15 the hydraulic pump and the solenoid directional valve of fourth pneumatic cylinder 18 electric telescopic handle 25 with drive arrangement all with PLC controller 32 electric connection.

Through the scheme of the invention, the end face polishing, edge polishing and chamfering can be simultaneously carried out on the tubular pile end plate blank ring 50, the angle of the chamfer can be adjusted by controlling the expansion and contraction of the electric telescopic rod 25, the degree of mechanization is high, the operation is convenient, and the processing efficiency is greatly increased.

Example two:

referring to fig. 1, for the driving device, the driving device includes a second mounting plate 34, a motor 35, a first belt pulley 36, a second belt pulley 37 and a triangular belt, the second mounting plate 34 is fixedly disposed between the supporting pillars 2 on one side, the motor 35 is fixedly disposed on the second mounting plate 34, the first belt pulley 36 is fixedly disposed on an outer wall of a rotating shaft of the motor 35, the second belt pulley 37 is fixedly sleeved on an outer wall of a lower end of the transmission shaft 4, and the first belt pulley 36 and the second belt pulley 37 are driven by the triangular belt.

Through the scheme of the invention, the motor 35 can be used for driving the transmission shaft 4 to rotate through the triangular belt, so that the square steel column 5 and the tubular pile end plate blank ring 50 are driven to rotate.

Example three:

referring to fig. 1, 4 and 5, for the limiting device, the limiting device includes a fifth hydraulic cylinder 38, the fifth hydraulic cylinder 38 is fixed below the first fixing plate 11 at the upper end of the first side plate 9, the fifth hydraulic cylinder 38 is coaxial with the transmission shaft 4, a third bearing 39 is fixedly sleeved on the outer wall of the lower end of the piston rod of the fifth hydraulic cylinder 38, a clamping seat 40 is fixedly disposed below the third bearing 39, a rectangular pyramid-shaped groove 43 is disposed at the lower end of the clamping seat 40, a rectangular pyramid-shaped protrusion 44 is fixedly disposed at the upper end of the square steel column 5, the groove 43 is matched with the protrusion 44, and both the hydraulic pump and the electromagnetic directional valve of the fifth hydraulic cylinder 38 are electrically connected to the PLC controller 32.

Through the scheme of the invention, the protrusion 44 on the square steel column 5 can be inserted into the groove 43 to limit the square steel column 5 by controlling the extension of the fifth hydraulic cylinder 38, so that the square steel column 5 is always perpendicular to the workbench 1 in the rotating process.

Example four:

referring to fig. 1, 6, 7 and 8, for the connecting member, the connecting member includes a damping rotating shaft 41, a mounting column 42 is fixedly disposed in the damping rotating shaft 41, and a touch screen 33 is fixedly disposed on the mounting column 42; for the first tool holder 13, a first clamping groove 45 is formed in the first tool holder 13, a plurality of threaded holes are formed in one side of the first clamping groove 45, bolts 48 are connected in the threaded holes in a threaded mode, and the grinding block 14 is fixedly installed in the first clamping groove 45 through the bolts 48; for the second tool apron 16, a second clamping groove 46 is formed in the second tool apron 16, a plurality of threaded holes are formed in one side of the second clamping groove 46, bolts 48 are connected in the threaded holes in a threaded manner, and the edge polishing cutter 17 is fixedly mounted in the second clamping groove 46 through the bolts 48; for the third tool apron, a third clamping groove 47 is formed in the third tool apron 19, a plurality of threaded holes are formed in one side of the third clamping groove 47, bolts 48 are connected in the threaded holes in a threaded manner, and the chamfering tool 20 is fixedly mounted in the third clamping groove 47 through the bolts 48; for the supporting column 2, a bottom plate 49 is fixedly arranged below the supporting column 2, and four corners of the bottom plate 49 are provided with through holes.

Through the scheme of the invention, the touch screen 33 can be rotated, so that the orientation of the touch screen 33 can be adjusted, the polishing block 14, the edge polishing knife 17 and the chamfering knife 20 can be detachably mounted in the corresponding knife seats through the bolts 48, and the bottom plate 49 and the through holes can be used for fixing the supporting column 2 on the ground through anchor bolts.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the angle sensor 30 can detect an included angle between the first connecting rod 28 on the rotating shaft 27 and a horizontal plane, that is, an included angle between the chamfering tool 20 and the horizontal plane, and transmit the detected data to the PLC controller 32 to be displayed on the touch screen 33, the angle between the chamfering tool 20 and the horizontal plane can be adjusted by controlling the extension and retraction of the electric telescopic rod 25, after the chamfer angle is adjusted, the welded tubular pile end plate blank ring 50 is sleeved on the outer walls of the four arc-shaped inner supporting blocks 8, the first hydraulic cylinder 7 is controlled to extend to fix the tubular pile end plate blank ring 50, then the fifth hydraulic cylinder 38 is controlled to extend, the groove 43 of the clamping seat 40 is clamped on the protrusion 44 to limit the upper end of the square steel column 5, the third bearing 39 is arranged between the clamping seat 40 and the fifth hydraulic cylinder 38, so that the clamping seat 40 can synchronously rotate along with the square steel column 5, and the square steel column 5 can be perpendicular to the workbench 1, then the motor 35 is started, the motor 35 drives the transmission shaft 4 and the square steel column 5 to rotate through the triangular belt, so as to drive the tubular pile end plate blank ring 50 to rotate, then the second hydraulic cylinder 12, the third hydraulic cylinder 15 and the fourth hydraulic cylinder 18 are controlled to extend slowly, so that the grinding block 14, the edge polishing cutter 17 and the chamfering cutter 20 can act on the pipe pile end plate blank ring 50 at the same time, thereby simultaneously polishing the end surface of the pipe pile end plate blank ring 50, polishing the edge and chamfering the circumference, the mechanism has high degree of mechanization, is convenient to operate, greatly increases the processing efficiency, can rotate the touch screen 33, so that the orientation of the touch screen 33 can be adjusted, and the sanding block 14, the edge polishing cutter 17 and the chamfering cutter 20 can be detachably mounted in the corresponding tool holders through the bolts 48, and the bottom plate 49 and the through holes can be used for fixing the support post 2 on the ground through the anchor bolts.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The end trimming mechanism for the circular tubular pile end plate is characterized by comprising a workbench (1), support columns (2) are fixedly arranged below four corners of the workbench (1), a fixing device, an end face polishing device, an edge polishing device and a chamfering device are arranged on the workbench (1), the fixing device comprises a first bearing (3), a transmission shaft (4) is fixedly arranged in the first bearing (3), a driving device is arranged at the lower end of the transmission shaft (4), a square steel column (5) is fixedly arranged at the upper end of the transmission shaft (4), mounting holes (6) are respectively formed in four sides of the square steel column (5) close to the upper end, first hydraulic cylinders (7) are respectively and fixedly arranged in the mounting holes (6), arc-shaped inner support blocks (8) are respectively and fixedly arranged at one ends of telescopic rods of the first hydraulic cylinders (7), and a limiting device is arranged above the square steel column (5), a first side plate (9) is fixedly arranged at one end of the workbench (1), a second side plate (10) is fixedly arranged at the other end of the workbench (1), first fixing plates (11) are fixedly arranged at the upper end and the lower end of the first side plate (9), the end face polishing device comprises second hydraulic cylinders (12), the number of the second hydraulic cylinders (12) is two, the second hydraulic cylinders are symmetrically and fixedly arranged on the two first fixing plates (11), first tool apron (13) are fixedly arranged on piston rods of the second hydraulic cylinders (12), polishing blocks (14) are arranged on the first tool apron (13), the edge polishing device comprises third hydraulic cylinders (15), the third hydraulic cylinders (15) are fixed on the inner wall of the middle portion of the first side plate (9), second tool apron (16) are fixedly arranged on piston rods of the third hydraulic cylinders (15), edge polishing knives (17) are arranged on the second tool apron (16), the chamfering device comprises a fourth hydraulic cylinder (18), a third tool apron (19) and a chamfering tool (20), wherein a first mounting plate (21) is fixedly arranged on a piston rod of the fourth hydraulic cylinder (18), first hinged supports (22) are fixedly arranged on the inner walls of the upper end and the lower end of the first mounting plate (21), the number of the third tool apron (19) is two, a second hinged support (23) is fixedly arranged at one end of the back of the third tool apron (19), a third hinged support (24) is fixedly arranged in the middle of the back of the third tool apron (19), an electric telescopic rod (25) is hinged between the first hinged support (22) and the third hinged support (24), second bearings (26) are fixedly arranged in round holes at the two ends of the second hinged support (23), a rotating shaft (27) is arranged in the second bearings (26), and the second bearings (26) are fixedly sleeved on the outer wall of the rotating shaft (27), axis of rotation (27) middle part outer wall is fixed and is equipped with head rod (28), head rod (28) are kept away from axis of rotation (27) one end all with first mounting panel (21) fixed connection, the back of third blade holder (19) is fixed through second connecting rod (29) and is equipped with angle sensor (30) just the measuring spindle of angle sensor (30) with axis of rotation (27) fixed connection, first curb plate (9) outer wall is fixed and is equipped with second fixed plate (31) and PLC controller (32), install touch-control screen (33) through the connecting piece on second fixed plate (31), touch-control screen (33), angle sensor (30) the hydraulic pump and the electromagnetic directional valve of first pneumatic cylinder (7), the hydraulic pump and the electromagnetic directional valve of second pneumatic cylinder (12) the hydraulic pump and the electromagnetic directional valve of third pneumatic cylinder (15), The hydraulic pump and the electromagnetic directional valve of the fourth hydraulic cylinder (18), the electric telescopic rod (25) and the driving device are electrically connected with the PLC (32).

2. The end trimming mechanism of the circular pipe pile end plate according to claim 1, wherein the driving device comprises a second mounting plate (34), a motor (35), a first belt pulley (36), a second belt pulley (37) and a triangular belt, the second mounting plate (34) is fixedly arranged between the supporting columns (2) on one side, the motor (35) is fixedly arranged on the second mounting plate (34), the first belt pulley (36) is fixedly sleeved on the outer wall of the rotating shaft of the motor (35), the second belt pulley (37) is fixedly sleeved on the outer wall of the lower end of the transmission shaft (4), and the first belt pulley (36) and the second belt pulley (37) are in transmission through the triangular belt.

3. The end finishing mechanism of a circular tube pile end plate according to claim 1, the limiting device comprises a fifth hydraulic cylinder (38), the fifth hydraulic cylinder (38) is fixed below a first fixing plate (11) at the upper end of the first side plate (9), the fifth hydraulic cylinder (38) is coaxial with the transmission shaft (4), a third bearing (39) is fixedly sleeved on the outer wall of the lower end of a piston rod of the fifth hydraulic cylinder (38), a clamping seat (40) is fixedly arranged below the third bearing (39), a quadrangular pyramid-shaped groove (43) is arranged at the lower end of the clamping seat (40), and the upper end of the square steel column (5) is fixedly provided with a quadrangular pyramid-shaped bulge (44), the groove (43) is matched with the protrusion (44), and the hydraulic pump and the electromagnetic directional valve of the fifth hydraulic cylinder (38) are electrically connected with the PLC (32).

4. The end trimming mechanism for circular tubular pile end plate according to claim 1, wherein the connecting member comprises a damping rotating shaft (41), a mounting column (42) is fixedly arranged in the damping rotating shaft (41), and a touch screen (33) is fixedly arranged on the mounting column (42).

5. The end finishing mechanism of the circular tubular pile end plate according to claim 1, wherein the first tool holder (13) is provided with a first clamping groove (45), one side of the first clamping groove (45) is provided with a plurality of threaded holes, each threaded hole is connected with a bolt (48) in a threaded manner, and the grinding block (14) is fixedly installed in the first clamping groove (45) through the bolts (48).

6. The end finishing mechanism of the circular tubular pile end plate according to claim 1, wherein the second tool holder (16) is provided with a second clamping groove (46), one side of the second clamping groove (46) is provided with a plurality of threaded holes, each threaded hole is connected with a bolt (48) in a threaded manner, and the edge polishing tool (17) is fixedly installed in the second clamping groove (46) through the bolt (48).

7. The end finishing mechanism for the circular pipe pile end plate according to claim 1, wherein the third tool holder (19) is provided with a third clamping groove (47), one side of the third clamping groove (47) is provided with a plurality of threaded holes, each threaded hole is connected with a bolt (48) in a threaded manner, and the chamfering tool (20) is fixedly installed in the third clamping groove (47) through the bolts (48).

8. The end trimming mechanism for circular tubular pile end plate of claim 1, characterized in that a bottom plate (49) is fixed under the supporting column (2) and the bottom plate (49) has through holes at its four corners.