Electric power tower pipe end face groove machining equipment

Abstract

The utility model relates to the technical field, in particular to an electric tower pipe end face groove machining device which is characterized in that an electric tower pipe is placed on a limiting mechanism, the position and the angle of the electric tower pipe are adjusted through the limiting mechanism, and then the end face of the electric tower pipe is turned through a turning mechanism. A groove is formed in the end face of the power tower pipe, so that the practicability of equipment is improved; comprising a turning mechanism; the device further comprises a limiting mechanism, and the turning mechanism is installed in the limiting mechanism. The limiting mechanism is used for limiting the power tower pipe, and the turning mechanism is used for turning the end face of the power tower pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field, in particular to a kind of electric power tower pipe end face groove machining equipment. BACKGROUND

[0002] Groove machine is a kind of equipment widely used in metal processing industry, the existing groove machine, such as the pipeline end face groove machine disclosed in the utility model patent with announcement No.CN219837256U and the pipeline groove machine disclosed in the invention patent with announcement No.CN107008955A, can be carried out to pipe bevel processing.

[0003] But in the process of bevel processing to electric power tower pipe, it is found that the structure of existing groove machine is relatively simple, and electric power tower pipe is relatively large and long, by existing groove machine to process it, time-consuming and laborious, and more space is occupied, leading to poor practicality, thus an electric power tower pipe end face groove machining equipment is urgently needed to improve the above problems. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a kind of electric power tower pipe end face groove machining equipment, which places electric power tower pipe on limiting mechanism, adjusts the position and angle of electric power tower pipe by limiting mechanism, then performs turning processing to the end face of electric power tower pipe by turning mechanism, so that the end face of electric power tower pipe forms groove, to improve the practicality of equipment.

[0005] The utility model discloses a kind of electric power tower pipe end face groove machining equipment, including turning mechanism;It further includes limiting mechanism, and turning mechanism is installed in limiting mechanism;

[0006] The limiting mechanism limits electric power tower pipe, and the turning mechanism turns the end face of electric power tower pipe;

[0007] Place electric power tower pipe on limiting mechanism, adjust the position and angle of electric power tower pipe by limiting mechanism, then perform turning processing to the end face of electric power tower pipe by turning mechanism, so that the end face of electric power tower pipe forms groove, to improve the practicality of equipment.

[0008] Preferably, the turning mechanism comprises an electric tool holder, a bevel turning tool, a first motor, a first gear and a first gear ring, the electric tool holder is rotatably installed on the working surface, the bevel turning tool is installed on the electric tool holder, the first motor is fixedly installed on the working surface, the first gear is installed on the output shaft of the first motor, the first gear ring is sleeved on the electric tool holder, and the side end of the first gear ring is in meshing connection with the side end of the first gear; after the position and angle of the power tower pipe are adjusted by the limiting mechanism, the first motor is turned on, the first gear and the first gear ring are in meshing transmission, the electric tool holder is driven to rotate, the end face of the power tower pipe is turned by the bevel turning tool, and the end face of the power tower pipe forms a bevel, so that the practicability of the equipment is improved.

[0009] Preferably, the limiting mechanism comprises a rotating mechanism, a supporting mechanism and a clamping mechanism, the electric tool holder and the first motor are installed in the middle of the rotating mechanism, the supporting mechanism is installed on the rotating mechanism, and the clamping mechanism is installed on the supporting mechanism; the power tower pipe is placed on the supporting mechanism, then the power tower pipe is limited by the supporting mechanism cooperating with the clamping mechanism, then the supporting mechanism is rotated by the rotating mechanism, the supporting mechanism is then erected, the power tower pipe is then vertically erected, the power tower pipe is then covered on the electric tool holder, then the end face of the power tower pipe is turned by the bevel turning tool driven by the electric tool holder, and the practicability of the equipment is improved.

[0010] Preferably, the rotating mechanism comprises a first annular support seat, a rotating ring, a second gear ring, a second annular support seat, a double-output-shaft motor, two groups of second gears and a plurality of first hydraulic cylinders, the first annular support seat is fixed on the working surface, the electric tool holder and the first motor are located in the middle of the first annular support seat, the rotating ring is rotatably installed on the top of the first annular support seat, the second gear ring is sleeved on the rotating ring, the second annular support seat is rotatably installed on the working surface, a plurality of gear teeth are arranged on the inner ring of the second annular support seat, the double-output-shaft motor is fixedly installed on the side end of the first annular support seat, two groups of second gears are installed on two groups of output shafts of the double-output-shaft motor, and the side ends of the two groups of second gears are in meshing connection with the second gear ring and the plurality of gear teeth on the second annular support seat, the bottom ends of the plurality of first hydraulic cylinders are rotatably installed on the second annular support seat, and the bottom ends of the plurality of first hydraulic cylinders are rotatably installed on the supporting mechanism; the double-output-shaft motor is turned on, the two groups of second gears are in meshing transmission with the second gear ring and the plurality of gear teeth on the second annular support seat, the rotating ring and the second annular support seat drive the supporting mechanism to rotate, then the supporting mechanism is erected by the plurality of first hydraulic cylinders extending, the bevel turning tool driven by the electric tool holder is rotated, the end face of the power tower pipe is turned, and the practicability of the equipment is improved.

[0011] Preferably, the supporting mechanism comprises two groups of first supporting columns, two groups of limiting blocks, a bottom supporting frame, a top supporting frame, a second motor, a plurality of groups of first fixing frames, a plurality of groups of second hydraulic cylinders and a plurality of groups of limiting pins, one end of the two groups of first supporting columns is rotatably installed at the top of the rotating ring, the top ends of the plurality of groups of first hydraulic cylinders are rotatably installed on the two groups of first supporting columns respectively, the two groups of limiting blocks are fixedly installed at the top of the rotating ring, the side end of the bottom supporting frame is installed on the other end of the two groups of first supporting columns, the top supporting frame is rotatably installed on the bottom supporting frame through a rotating shaft, the second motor is fixedly installed on the bottom supporting frame, and the output shaft of the second motor is connected with one end of the rotating shaft, the rear end top of the bottom supporting frame and the rear end bottom of the top supporting frame are both provided with a plurality of groups of perforations, the plurality of groups of first fixing frames are fixedly installed on the rear end of the bottom supporting frame, the plurality of groups of second hydraulic cylinders are installed on the plurality of groups of first fixing frames respectively, and the plurality of groups of limiting pins are installed on one end of the plurality of groups of second hydraulic cylinders respectively; the power tower pipe is placed on the bottom supporting frame, the second motor is turned on, the top supporting frame is driven to rotate, the top supporting frame is buckled on the bottom supporting frame, and the plurality of groups of perforations on the top supporting frame are overlapped with the plurality of groups of perforations on the bottom supporting frame, then the plurality of groups of second hydraulic cylinders are stretched, the plurality of groups of limiting pins pass through the plurality of groups of perforations on the bottom supporting frame and the plurality of groups of perforations on the top supporting frame respectively once, the top supporting frame is fixed on the bottom supporting frame, and the clamping mechanism is convenient for clamping the power tower pipe, thereby improving the practicability of the equipment.

[0012] Preferably, the clamping mechanism comprises a plurality of groups of second fixing frames, a plurality of groups of third hydraulic cylinders, a plurality of groups of second supporting columns, a plurality of groups of sliding sleeves and a plurality of groups of clamping plates, the plurality of groups of second fixing frames are fixedly installed on the bottom supporting frame and the top supporting frame respectively, the plurality of groups of sliding sleeves are installed on the bottom supporting frame and the top supporting frame respectively, the plurality of groups of third hydraulic cylinders are installed on the plurality of groups of second fixing frames respectively, the plurality of groups of second supporting columns are installed on one end of the plurality of groups of third hydraulic cylinders respectively, one end of the plurality of groups of second supporting columns passes through the plurality of groups of sliding sleeves respectively, and the plurality of groups of clamping plates are installed on the other end of the plurality of groups of second supporting columns respectively; the power tower pipe is placed on the bottom supporting frame, the plurality of groups of clamping plates on the bottom supporting frame support the power tower pipe, after the top supporting frame and the bottom supporting frame are closed, the plurality of groups of third hydraulic cylinders are stretched, the plurality of groups of clamping plates clamp the power tower pipe, and the power tower pipe is limited, thereby improving the practicability of the equipment.

[0013] Compared with the prior art, the power tower pipe is placed on the limiting mechanism, the position and angle of the power tower pipe are adjusted through the limiting mechanism, then the end face of the power tower pipe is turned through the turning mechanism, and the end face of the power tower pipe forms a bevel, thereby improving the practicability of the equipment. ACCURATE DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first axonometric structure schematic view of the utility model.

[0015] Figure 2 is the second axial measurement structure schematic view of the utility model;

[0016] Figure 3 is the front view structure schematic view of the utility model;

[0017] Figure 4 is the A part enlarged structure schematic view in the utility model Figure 1 ;

[0018] Figure 5 is the B part enlarged structure schematic view in the utility model Figure 2 ;

[0019] Mark in drawing: 1, electric knife rest;2, groove turning tool;3, first motor;4, first gear;5, first gear ring;6, first annular support seat;7, rotating ring;8, second gear ring;9, second annular support seat;10, double output shaft motor;11, second gear;12, first hydraulic cylinder;13, first support column;14, limit block;15, bottom support frame;16, top support frame;17, second motor;18, first fixed frame;19, second hydraulic cylinder;20, limit pin;21, second fixed frame;22, third hydraulic cylinder;23, second support column;24, sliding sleeve;25, clamping plate. Specific implementation

[0020] In order to facilitate understanding the utility model, the utility model will be described more fully below with reference to relevant drawings. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Embodiment

[0021] A power tower pipe end face groove machining equipment, including turning mechanism;Still including limiting mechanism, and turning mechanism is installed in limiting mechanism;

[0022] The limiting mechanism is limited to the power tower pipe, and the turning mechanism is turned to the end face of the power tower pipe;

[0023] The turning mechanism includes electric knife rest 1, groove turning tool 2, first motor 3, first gear 4 and first gear ring 5, electric knife rest 1 is rotatably installed on the working face, groove turning tool 2 is installed on electric knife rest 1, first motor 3 is fixedly installed on the working face, and first gear 4 is installed on the output shaft of first motor 3, first gear ring 5 is sleeved on electric knife rest 1, and the side end of first gear ring 5 is engaged with the side end of first gear 4;

[0024] The limiting mechanism comprises a rotating mechanism, a supporting mechanism and a clamping mechanism, the electric knife holder 1 and the first motor 3 are installed in the middle of the rotating mechanism, the supporting mechanism is installed on the rotating mechanism, and the clamping mechanism is installed on the supporting mechanism;

[0025] The supporting mechanism comprises two groups of first supporting columns 13, two groups of limiting blocks 14, a bottom supporting frame 15, a top supporting frame 16, a second motor 17, multiple groups of first fixing frames 18, multiple groups of second hydraulic cylinders 19 and multiple groups of limiting pins 20, one end of the two groups of first supporting columns 13 is rotatably installed on the top of the rotating ring 7, the top ends of the multiple groups of first hydraulic cylinders 12 are rotatably installed on the two groups of first supporting columns 13 respectively, the two groups of limiting blocks 14 are fixedly installed on the top of the rotating ring 7, the side ends of the bottom supporting frame 15 are installed on the other ends of the two groups of first supporting columns 13, the top supporting frame 16 is rotatably installed on the bottom supporting frame 15 through a rotating shaft, the second motor 17 is fixedly installed on the bottom supporting frame 15, and the output shaft of the second motor 17 is connected with one end of the rotating shaft, the rear end top of the bottom supporting frame 15 and the rear end bottom of the top supporting frame 16 are provided with multiple groups of perforations, the multiple groups of first fixing frames 18 are fixedly installed on the rear end of the bottom supporting frame 15, the multiple groups of second hydraulic cylinders 19 are installed on the multiple groups of first fixing frames 18 respectively, and the multiple groups of limiting pins 20 are installed on one end of the multiple groups of second hydraulic cylinders 19 respectively;

[0026] The clamping mechanism comprises multiple groups of second fixing frames 21, multiple groups of third hydraulic cylinders 22, multiple groups of second supporting columns 23, multiple groups of sliding sleeves 24 and multiple groups of clamping plates 25, the multiple groups of second fixing frames 21 are fixedly installed on the bottom supporting frame 15 and the top supporting frame 16 respectively, the multiple groups of sliding sleeves 24 are installed on the bottom supporting frame 15 and the top supporting frame 16 respectively, the multiple groups of third hydraulic cylinders 22 are installed on the multiple groups of second fixing frames 21 respectively, the multiple groups of second supporting columns 23 are installed on one end of the multiple groups of third hydraulic cylinders 22 respectively, one end of the multiple groups of second supporting columns 23 respectively passes through the multiple groups of sliding sleeves 24, and the multiple groups of clamping plates 25 are installed on the other ends of the multiple groups of second supporting columns 23 respectively;

[0027] The power tower pipe is placed on the bottom support frame 15, a plurality of clamping plates 25 on the bottom support frame 15 support the power tower pipe, the second motor 17 is opened, the top support frame 16 is driven to rotate, the top support frame 16 is buckled on the bottom support frame 15, and a plurality of groups of perforations on the top support frame 16 overlap a plurality of groups of perforations on the bottom support frame 15, and then a plurality of second hydraulic cylinders 19 are extended, a plurality of limiting pins 20 are respectively once inserted through a plurality of groups of perforations on the bottom support frame 15 and a plurality of groups of perforations on the top support frame 16, the top support frame 16 is fixed on the bottom support frame 15, the power tower pipe is clamped through a plurality of clamping plates 25, then the two groups of first support columns 13 of the rotating mechanism are erected, the two groups of limiting blocks 14 cooperate with the rotating mechanism to limit the two groups of first support columns 13, then the first motor 3 is opened, the first gear 4 is engaged with the first tooth ring 5 to drive the electric tool rest 1 to rotate, the bevel gear cutter 2 is used to turn the end face of the power tower pipe, and the end face of the power tower pipe is formed into a bevel, so that the practicability of the equipment is improved. EMBODIMENT

[0028] As shown in Figures 1 to 5 A power tower pipe end face bevel processing equipment, comprising a turning mechanism; further comprising a limiting mechanism, the turning mechanism is installed in the limiting mechanism;

[0029] The limiting mechanism limits the power tower pipe, and the turning mechanism turns the end face of the power tower pipe;

[0030] The turning mechanism comprises an electric tool rest 1, a bevel gear cutter 2, a first motor 3, a first gear 4 and a first tooth ring 5, the electric tool rest 1 is rotatably installed on a working surface, the bevel gear cutter 2 is installed on the electric tool rest 1, the first motor 3 is fixedly installed on the working surface, and the first gear 4 is installed on the output shaft of the first motor 3, the first tooth ring 5 is sleeved on the electric tool rest 1, and the side end of the first tooth ring 5 is in meshing connection with the side end of the first gear 4;

[0031] The limiting mechanism comprises a rotating mechanism, a supporting mechanism and a clamping mechanism, the electric tool rest 1 and the first motor 3 are both installed in the middle part of the rotating mechanism, the supporting mechanism is installed on the rotating mechanism, and the clamping mechanism is installed on the supporting mechanism;

[0032] The rotating mechanism comprises a first annular support base 6, a rotating ring 7, a second tooth ring 8, a second annular support base 9, a double-output-shaft motor 10, two groups of second gears 11 and a plurality of first hydraulic cylinders 12, the first annular support base 6 is fixed on the working surface, the electric tool rest 1 and the first motor 3 are located in the middle of the first annular support base 6, the rotating ring 7 is rotatably installed on the top of the first annular support base 6, the second tooth ring 8 is sleeved on the rotating ring 7, the second annular support base 9 is rotatably installed on the working surface, a plurality of groups of gear teeth are arranged on the inner ring of the second annular support base 9, the double-output-shaft motor 10 is fixedly installed on the side end of the first annular support base 6, the two groups of second gears 11 are respectively installed on the two groups of output shafts of the double-output-shaft motor 10, and the side ends of the two groups of second gears 11 are respectively meshed and connected with the second tooth ring 8 and the plurality of groups of gear teeth on the second annular support base 9, and the bottom ends of the plurality of groups of first hydraulic cylinders 12 are rotatably installed on the second annular support base 9 and the support mechanism;

[0033] The support mechanism comprises two groups of first support columns 13, two groups of limiting blocks 14, a bottom support frame 15, a top support frame 16, a second motor 17, a plurality of groups of first fixing frames 18, a plurality of groups of second hydraulic cylinders 19 and a plurality of groups of limiting pins 20, one end of each of the two groups of first support columns 13 is rotatably installed on the top of the rotating ring 7, the top ends of the plurality of groups of first hydraulic cylinders 12 are rotatably installed on the two groups of first support columns 13, the two groups of limiting blocks 14 are fixedly installed on the top of the rotating ring 7, the side end of the bottom support frame 15 is installed on the other end of the two groups of first support columns 13, the top support frame 16 is rotatably installed on the bottom support frame 15 through a rotating shaft, the second motor 17 is fixedly installed on the bottom support frame 15, and the output shaft of the second motor 17 is connected with one end of the rotating shaft, the rear top of the bottom support frame 15 and the rear bottom of the top support frame 16 are provided with a plurality of groups of perforations, the plurality of groups of first fixing frames 18 are fixedly installed on the rear end of the bottom support frame 15, the plurality of groups of second hydraulic cylinders 19 are respectively installed on the plurality of groups of first fixing frames 18, and the plurality of groups of limiting pins 20 are respectively installed on one end of the plurality of groups of second hydraulic cylinders 19;

[0034] The clamping mechanism comprises a plurality of groups of second fixing frames 21, a plurality of groups of third hydraulic cylinders 22, a plurality of groups of second support columns 23, a plurality of groups of sliding sleeves 24 and a plurality of groups of clamping plates 25, the plurality of groups of second fixing frames 21 are respectively fixedly installed on the bottom support frame 15 and the top support frame 16, the plurality of groups of sliding sleeves 24 are respectively installed on the bottom support frame 15 and the top support frame 16, the plurality of groups of third hydraulic cylinders 22 are respectively installed on the plurality of groups of second fixing frames 21, the plurality of groups of second support columns 23 are respectively installed on one end of the plurality of groups of third hydraulic cylinders 22, and one end of the plurality of groups of second support columns 23 respectively passes through the plurality of groups of sliding sleeves 24, and the plurality of groups of clamping plates 25 are respectively installed on the other end of the plurality of groups of second support columns 23;

[0035] The power tower pipe is placed on the bottom support frame 15, a plurality of clamping plates 25 on the bottom support frame 15 support the power tower pipe, the second motor 17 is opened, the top support frame 16 is driven to rotate, the top support frame 16 is buckled on the bottom support frame 15, and a plurality of groups of perforations on the top support frame 16 overlap a plurality of groups of perforations on the bottom support frame 15, then a plurality of second hydraulic cylinders 19 are extended, a plurality of limiting pins 20 are respectively once through a plurality of groups of perforations on the bottom support frame 15 and a plurality of groups of perforations on the top support frame 16, the top support frame 16 is fixed on the bottom support frame 15, the power tower pipe is clamped through a plurality of clamping plates 25, then the double-output shaft motor 10 is opened, two groups of second gears 11 are respectively engaged with the second tooth ring 8 and a plurality of groups of gear teeth on the second annular support seat 9 to drive transmission, the rotating ring 7 and the second annular support seat 9 drive the support mechanism to rotate, then a plurality of first hydraulic cylinders 12 are extended, the support mechanism is erected, two groups of limiting blocks 14 cooperate with a plurality of first hydraulic cylinders 12 to limit two groups of first support columns 13, then the first motor 3 is opened, the first gear 4 is engaged with the first tooth ring 5 to drive transmission, the electric knife holder 1 is driven to rotate, the bevel gear cutter 2 is used for turning the end face of the power tower pipe, and the end face of the power tower pipe is formed into a bevel, so that the practicability of the equipment is improved.

[0036] The first motor 3, the double-output shaft motor 10, the first hydraulic cylinder 12, the second motor 17, the second hydraulic cylinder 19 and the third hydraulic cylinder 22 of the power tower pipe end face bevel machining equipment are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0037] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a plurality of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. A power tower pipe end face beveling apparatus comprising a turning mechanism; characterized in that, The limiting mechanism is also included, and the turning mechanism is installed in the limiting mechanism; The limiting mechanism limits the power tower pipe, and the turning mechanism turns the end face of the power tower pipe; The turning mechanism comprises an electric tool rest (1), a bevel tool (2), a first motor (3), a first gear (4) and a first tooth ring (5), the electric tool rest (1) is rotatably installed on a working surface, the bevel tool (2) is installed on the electric tool rest (1), the first motor (3) is fixedly installed on the working surface, the first gear (4) is installed on an output shaft of the first motor (3), the first tooth ring (5) is sleeved on the electric tool rest (1), and side ends of the first tooth ring (5) are in meshing connection with side ends of the first gear (4). The limiting mechanism comprises a rotating mechanism, a supporting mechanism and a clamping mechanism, the electric tool rest (1) and the first motor (3) are both installed in the middle part of the rotating mechanism, the supporting mechanism is installed on the rotating mechanism, and the clamping mechanism is installed on the supporting mechanism.

2. The power tower pipe end face beveling apparatus of claim 1, wherein, The rotating mechanism comprises a first annular support seat (6), a rotating ring (7), a second tooth ring (8), a second annular support seat (9), a double-output-shaft motor (10), two groups of second gears (11) and a plurality of first hydraulic cylinders (12), the first annular support seat (6) is fixed on the working surface, the electric tool rest (1) and the first motor (3) are both located in the middle part of the first annular support seat (6), the rotating ring (7) is rotatably installed on the top of the first annular support seat (6), the second tooth ring (8) is sleeved on the rotating ring (7), the second annular support seat (9) is rotatably installed on the working surface, a plurality of gear teeth are arranged on the inner ring of the second annular support seat (9), the double-output-shaft motor (10) is fixedly installed on the side end of the first annular support seat (6), the two groups of second gears (11) are respectively installed on two groups of output shafts of the double-output-shaft motor (10), and the side ends of the two groups of second gears (11) are in meshing connection with the second tooth ring (8) and the plurality of gear teeth on the second annular support seat (9), respectively, the bottom ends of the plurality of first hydraulic cylinders (12) are rotatably installed on the second annular support seat (9), and the bottom ends of the plurality of first hydraulic cylinders (12) are rotatably installed on the supporting mechanism.

3. A power tower pipe end face beveling apparatus as claimed in claim 2, characterized in that, The supporting mechanism comprises two groups of first supporting columns (13), two groups of limiting blocks (14), a bottom supporting frame (15), a top supporting frame (16), a second motor (17), a plurality of groups of first fixing frames (18), a plurality of groups of second hydraulic cylinders (19) and a plurality of groups of limiting pins (20), one end of the two groups of first supporting columns (13) is rotatably installed at the top of the rotating ring (7), the top ends of the plurality of groups of first hydraulic cylinders (12) are rotatably installed on the two groups of first supporting columns (13) respectively, the two groups of limiting blocks (14) are fixedly installed at the top of the rotating ring (7), the side end of the bottom supporting frame (15) is installed on the other end of the two groups of first supporting columns (13), the top supporting frame (16) is rotatably installed on the bottom supporting frame (15) through a rotating shaft, the second motor (17) is fixedly installed on the bottom supporting frame (15), and the output shaft of the second motor (17) is connected with one end of the rotating shaft, the rear end top of the bottom supporting frame (15) and the rear end bottom of the top supporting frame (16) are provided with a plurality of groups of perforations, the plurality of groups of first fixing frames (18) are fixedly installed on the rear end of the bottom supporting frame (15), the plurality of groups of second hydraulic cylinders (19) are installed on the plurality of groups of first fixing frames (18) respectively, and the plurality of groups of limiting pins (20) are installed on one end of the plurality of groups of second hydraulic cylinders (19) respectively.

4. The apparatus for power tower pipe end facing and beveling of claim 3, wherein, The clamping mechanism comprises a plurality of groups of second fixing frames (21), a plurality of groups of third hydraulic cylinders (22), a plurality of groups of second supporting columns (23), a plurality of groups of sliding sleeves (24) and a plurality of groups of clamping plates (25), the plurality of groups of second fixing frames (21) are fixedly installed on the bottom supporting frame (15) and the top supporting frame (16) respectively, the plurality of groups of sliding sleeves (24) are installed on the bottom supporting frame (15) and the top supporting frame (16) respectively, the plurality of groups of third hydraulic cylinders (22) are installed on the plurality of groups of second fixing frames (21) respectively, the plurality of groups of second supporting columns (23) are installed on one end of the plurality of groups of third hydraulic cylinders (22) respectively, one end of the plurality of groups of second supporting columns (23) penetrates through the plurality of groups of sliding sleeves (24) respectively, and the plurality of groups of clamping plates (25) are installed on the other end of the plurality of groups of second supporting columns (23) respectively.

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