Pipe end perforating device

Abstract

The utility model discloses a pipe end perforating device, which comprises a positioning seat, a perforating device, a perforating device, a perforating device and a perforating device, wherein a positioning groove is formed in the lower side of the positioning seat; the pipe supporting assembly is used for supporting pipes; the pipe jacking assembly comprises a jacking block and a pipe jacking driving mechanism, the pipe jacking driving mechanism can drive the jacking block to move in the left-right direction, and the jacking block can jack the end face of the pipe; and the trepanning assembly comprises a trepanning mechanism and a trepanning up-and-down driving mechanism, the trepanning mechanism is arranged on the lower side of the positioning groove, and the trepanning up-and-down driving mechanism can drive the trepanning mechanism to move in the up-and-down direction. The end of the pipe is placed in the positioning groove of the positioning seat, the positioning groove can limit the front-back position of the pipe, the pipe jacking driving mechanism drives the jacking block to be close to the pipe and abut against the end face of the pipe, and the end of the pipe is moved to the left-right position needed by punching. And then the perforating mechanism moves upwards to perforate the lower side of the end part of the pipe, so that positioning and perforating of the end part of the pipe can be realized, and the machining precision of perforating of the end part of the pipe is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hole processing equipment technical field, especially a pipe end hole device. BACKGROUND

[0002] According to the different use of pipe, need corresponding processing on pipe. The existing in some pipe need on the end of pipe hole, but the present hole equipment in pipe end hole processing precision is not high enough, and the technical personnel in the field hope to have a hole device for pipe end, can improve the processing precision of pipe end hole. UTILITY MODEL CONTENTS

[0003] The utility model discloses a pipe end hole device, aims at solving the technical problem of the processing precision of pipe end hole in prior art.

[0004] In order to realize the above-mentioned purpose, the utility model provides a pipe end hole device, which comprises:

[0005] Positioning seat, the lower side of the positioning seat is provided with the positioning groove for positioning the end of pipe, and the lower side and the left and right sides of the positioning groove are open;

[0006] Pipe supporting assembly, the pipe supporting assembly is arranged on the left side or the right side of the positioning groove, the pipe supporting assembly is opposite to the positioning groove, and the pipe supporting assembly is used for supporting pipe;

[0007] Pipe jacking assembly, the pipe jacking assembly comprises a jacking block and a pipe jacking driving mechanism, the jacking block is arranged on the side of the positioning groove away from the pipe supporting assembly, the jacking block is opposite to the positioning groove, the pipe jacking driving mechanism is in transmission connection with the jacking block, the pipe jacking driving mechanism can drive the jacking block to move along the left and right directions, and the jacking block can abut against the end face of pipe when moving to the side of the pipe supporting assembly.

[0008] Hole opening assembly, which comprises a hole opening mechanism and a hole opening up-down driving mechanism, the hole opening mechanism is arranged on the lower side of the positioning groove, the hole opening up-down driving mechanism is in transmission connection with the hole opening mechanism, the hole opening up-down driving mechanism can drive the hole opening mechanism to move along the up-down direction, and the hole opening mechanism can open hole in pipe from the lower side of pipe.

[0009] The pipe end hole drilling device comprises a pipe supporting assembly, a pipe positioning seat, a pipe end positioning block, a pipe end hole drilling mechanism, a pipe end hole drilling up-down driving mechanism and a pipe end hole drilling left-right driving mechanism.

[0010] Preferably, the pipe end positioning seat is fixed relative to the pipe end positioning block, the pipe end hole drilling mechanism is fixed relative to the pipe end positioning seat in the left-right direction, and the pipe end hole drilling left-right driving mechanism can drive the pipe end positioning block, the pipe end positioning seat and the pipe end hole drilling mechanism to move synchronously.

[0011] The pipe end positioning seat, the pipe end positioning block and the pipe end hole drilling mechanism are fixed relative to each other in the left-right direction, and the pipe end hole drilling left-right driving mechanism can drive the pipe end positioning block, the pipe end positioning seat and the pipe end hole drilling mechanism to move synchronously, so that when the pipe end hole drilling left-right driving mechanism moves the pipe end positioning block, the pipe end positioning seat and the pipe end hole drilling mechanism to approach the pipe, one end of the pipe enters the pipe end positioning groove, the pipe end positioning block positions the pipe, and the pipe end hole drilling mechanism moves to the position where the pipe end hole is to be drilled, so that the position where the pipe end hole is drilled by the pipe end hole drilling mechanism remains unchanged relative to the position where the pipe end is positioned by the pipe end positioning block, and the position precision between the end face of the pipe and the position where the pipe end hole is drilled is improved.

[0012] Preferably, the pipe end hole drilling up-down driving mechanism comprises an up-down driving cylinder, an up-down connecting plate and an up-down guide rod, the up-down driving cylinder and the up-down connecting plate are arranged on the upper side of the pipe end positioning seat, the up-down connecting plate is fixedly connected with the cylinder body of the up-down driving cylinder, the piston rod of the up-down driving cylinder is connected with the pipe end positioning seat, the up-down guide rod extends in the up-down direction, the upper side of the up-down guide rod is fixedly connected with the up-down connecting plate, the up-down guide rod passes through the pipe end positioning seat and is connected with the pipe end positioning seat in the up-down direction, and the lower side of the up-down guide rod is connected with the pipe end hole drilling mechanism.

[0013] The pipe end hole drilling mechanism is arranged on the lower side of the pipe end positioning seat, the up-down driving cylinder is arranged on the upper side of the pipe end positioning seat, the up-down guide rod is connected with the pipe end positioning seat in a sliding manner to guide the up-down driving cylinder, and the up-down driving cylinder is connected with the pipe end hole drilling mechanism through the pipe end positioning seat and the up-down guide rod, so that the structure of the space on the lower side of the pipe end positioning seat is reduced, and the space is more reasonably and compactly utilized.

[0014] Preferably, the pipe end hole drilling left-right driving mechanism comprises a pipe end hole drilling cylinder, and the pipe end hole drilling assembly further comprises a moving sliding seat, the pipe end positioning block and the pipe end positioning seat are fixedly connected with the moving sliding seat, the piston rod of the pipe end hole drilling cylinder is connected with the moving sliding seat, and the pipe end hole drilling cylinder can drive the moving sliding seat to move in the left-right direction.

[0015] Preferably, the pipe holding assembly comprises a supporting piece and a clamping driving mechanism, the clamping driving mechanism is provided with a front clamping block and a rear clamping block, the supporting piece is used for supporting the pipe, the front clamping block and the rear clamping block are arranged on the side of the supporting piece, the upper side of the front clamping block and the rear clamping block is higher than the upper side of the supporting piece, the clamping driving mechanism is in transmission connection with the front clamping block and the rear clamping block, and the clamping driving mechanism can drive the front clamping block and the rear clamping block to move close to each other to clamp the pipe or move away from each other to release the pipe.

[0016] The clamping driving mechanism can drive the front clamping block and the rear clamping block to clamp the pipe, and the front and rear positions of the pipe can be positioned, so that the pipe can enter the positioning groove more accurately; when the hole is drilled, the front clamping block and the rear clamping block can also clamp the pipe, so that the pipe cannot move away from the side of the top block, and the drilling accuracy is improved.

[0017] Preferably, the pipe holding assembly further comprises a pipe jacking driving mechanism, the pipe jacking driving mechanism is in transmission connection with the supporting piece and the clamping driving mechanism, and the pipe jacking driving mechanism can drive the supporting piece, the clamping driving mechanism, the front clamping block and the rear clamping block to move in the up-down direction.

[0018] When the pipe is put in, the supporting piece, the clamping driving mechanism, the front clamping block and the rear clamping block are located at the lower side, then the pipe jacking driving mechanism drives the supporting piece, the clamping driving mechanism, the front clamping block and the rear clamping block to rise upward and hold the pipe to the height of the positioning groove, so that the pipe is loaded, and the pipe can be supported and clamped when being located at the upper side.

[0019] Preferably, the end of the top block is provided with a positioning cone matched with the shape of the port of the pipe, when the top block abuts against the end face of the pipe, the positioning cone can be partially inserted into the port of the pipe and abut against the end face of the pipe.

[0020] When the top block is close to the end of the pipe, the positioning cone is inserted into the port of the pipe and abuts against the end face of the pipe, the positioning cone can position the up-down and front-back positions of the end face of the pipe, provide support for the end face of the pipe during the hole drilling process, reduce the shaking of the end of the pipe, and improve the drilling accuracy.

[0021] Preferably, the positioning seat is provided with a positioning block, the positioning block is detachably connected with the positioning seat, and the positioning groove is arranged on the lower side of the positioning block.

[0022] The positioning block is detachably connected with the positioning seat, different positioning blocks can be replaced according to the cross-sectional shape and size of different pipes, so that different pipes can be switched and processed, or the positioning groove can be conveniently replaced after being worn, and the positioning accuracy is maintained.

[0023] Preferably, the upper side of the positioning block is provided with a positioning dovetail groove, and the lower side of the positioning seat is provided with a positioning strip matched with the shape of the positioning dovetail groove, and the positioning strip is inserted into the positioning dovetail groove.

[0024] The positioning block is connected to the positioning strip of the positioning seat through the positioning dovetail groove, and the cooperation of the positioning dovetail groove and the positioning strip can facilitate the installation accuracy during replacement of the positioning block, reduce the adjustment times, and improve the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0026] Figure 1 For the pipe end hole device of the present application, the pipe is supported by the pipe supporting assembly, and the structure schematic diagram when the end of the pipe does not enter the positioning groove;

[0027] Figure 2 For the pipe end hole device of the present application, the pipe is supported by the pipe supporting assembly, and the structure schematic diagram when the end of the pipe is in the positioning groove and is pressed by the top block;

[0028] Figure 3 For the structure schematic diagram of the positioning seat, the top block and the hole opening mechanism of the present application;

[0029] Figure 4 For the structure schematic diagram of the top block of the present application;

[0030] Figure 5 For the structure schematic diagram when the positioning cone of the top block of the present application is inserted into the port of the pipe.

[0031] In the drawings: 1-positioning seat, 11-positioning groove, 12-positioning block, 121-positioning dovetail groove, 2-pipe supporting assembly, 21-supporting piece, 22-clamping driving mechanism, 23-front clamping block, 24-rear clamping block, 25-pipe supporting lifting driving mechanism, 31-top block, 311-positioning cone, 32-pipe driving mechanism, 34-moving slide, 41-hole opening mechanism, 411-hole opening motor, 412-cutter chuck, 413-hole opening cutter, 42-hole opening up-down driving mechanism, 421-up-down driving cylinder, 422-up-down connecting plate, 423-up-down guide rod, 5-pipe, 6-base.

[0032] The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0034] It should be noted that if the embodiments of the present application involve directional indications, such as up, down, left, right, front, back, etc., the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0036] As shown in FIG. 1, a pipe end hole forming device comprises a positioning seat 1, a pipe supporting assembly 2, a pipe jacking assembly and a hole forming assembly. Figures 1 to 5 The lower side of the positioning seat 1 is provided with a positioning groove 11 for positioning the end of the pipe 5. The lower side and the left and right sides of the positioning groove 11 are open. The left and right sides of the positioning groove 11 are open to allow the pipe 5 and the pipe jacking assembly to pass through. The lower side of the positioning groove 11 is open to expose the lower side of the pipe 5 for upward machining by the hole forming assembly.

[0037] The pipe supporting assembly 2 is arranged on the left side or the right side of the positioning groove 11. The pipe supporting assembly 2 is opposite to the positioning groove 11. The pipe supporting assembly 2 is used to support the pipe 5.

[0038] The pipe jacking assembly comprises a jacking block 31 and a pipe jacking driving mechanism 32. The jacking block 31 is arranged on the side of the positioning groove 11 away from the pipe supporting assembly 2. The jacking block 31 is opposite to the positioning groove 11. The pipe jacking driving mechanism 32 is in transmission connection with the jacking block 31. The pipe jacking driving mechanism 32 can drive the jacking block 31 to move in the left-right direction. When the jacking block 31 approaches the side of the pipe supporting assembly 2, the jacking block 31 can abut against the end face of the pipe 5.

[0039] The pipe jacking driving mechanism 32 comprises a driving motor 321, a driving shaft 322 and a driving gear 323. The driving motor 321 is arranged on the side of the jacking block 31 away from the pipe supporting assembly 2. The driving shaft 322 is arranged on the side of the jacking block 31 close to the pipe supporting assembly 2. The driving gear 323 is arranged on the driving shaft 322. The driving motor 321 is in transmission connection with the driving gear 323. The driving gear 323 is in transmission connection with the jacking block 31. The driving motor 321 can drive the jacking block 31 to move in the left-right direction.

[0040] The opening assembly comprises an opening mechanism 41 arranged at the lower side of the positioning groove 11 and an opening up-down driving mechanism 42 in driving connection with the opening mechanism 41, the opening up-down driving mechanism 42 being capable of driving the opening mechanism 41 to move in the up-down direction, and the opening mechanism 41 being capable of opening the pipe 5 from the lower side of the pipe 5. The opening mechanism 41 comprises an opening motor 411 and a tool chuck 412 capable of clamping an opening tool 413 such as a drill bit or a milling cutter, and the opening motor 411 drives the tool chuck 412 and the opening tool 413 to rotate and process the pipe 5 during processing.

[0041] The pipe supporting assembly 2 supports the pipe 5 to be opened, the end of the pipe 5 is placed in the positioning groove 11 of the positioning seat 1, the positioning groove 11 can limit the front and back positions of the pipe 5, the pipe driving mechanism 32 drives the top block 31 to approach the end face of the pipe 5 and abut against the end face of the pipe 5, so that the end of the pipe 5 is moved to the left and right positions required for punching, and then the opening up-down driving mechanism 42 drives the opening mechanism 41 to move upward, and the opening mechanism 41 opens the lower side of the end of the pipe 5. The pipe end opening device supports the pipe 5 by the pipe supporting assembly 2, positions the front and back positions of the pipe 5 by the positioning groove 11, and positions the left and right positions of the end of the pipe 5 by the top block 31, so that the positioning and opening of the end of the pipe 5 can be realized, and the processing precision of the opening of the end of the pipe 5 is improved.

[0042] In some embodiments, with reference to Figure 1 , Figure 2 and Figure 3 , the positioning seat 1 is relatively fixed with the top block 31, the opening mechanism 41 is relatively fixed with the positioning seat 1 in the left and right directions, and the pipe driving mechanism 32 is capable of driving the top block 31, the positioning seat 1 and the opening mechanism 41 to approach or move away from the pipe supporting assembly 2 synchronously.

[0043] Specifically, the pipe end opening device further comprises a fixed base 6, the positioning seat 1 and the top block 31 are both in sliding connection with the base 6 in the left and right directions, and the pipe supporting assembly 2 is connected to the base 6 and is relatively fixed in the left and right directions.

[0044] The positions of the positioning seat 1, the top block 31 and the hole forming mechanism 41 are fixed relative to the left-right direction, the top pipe driving mechanism 32 can push the positioning seat 1, the top block 31 and the hole forming mechanism 41 to move synchronously, when the pipe 5 approaches, one end of the pipe 5 enters the positioning groove 11, at the same time, the top block 31 positions the pipe 5, and the hole forming mechanism 41 moves to the position where the hole is needed to be formed, so that the position where the hole forming mechanism 41 forms the hole remains unchanged relative to the position where the top block 31 positions the end of the pipe 5, and the position accuracy between the end face of the pipe 5 and the hole forming position is improved. After the processing is completed, the hole forming mechanism 41 moves downward, the top pipe driving mechanism 32 drives the positioning seat 1, the top block 31 and the hole forming mechanism 41 to move away from the pipe supporting assembly 2, the positioning seat 1, the top block 31 and the hole forming mechanism 41 move away from the pipe 5, and the pipe 5 can be taken out.

[0045] Further, the hole forming up-down driving mechanism 42 comprises an up-down driving cylinder 421, an up-down connecting plate 422 and an up-down guide rod 423, the up-down driving cylinder 421 and the up-down connecting plate 422 are arranged on the upper side of the positioning seat 1, the up-down connecting plate 422 is fixedly connected with the cylinder body of the up-down driving cylinder 421, the piston rod of the up-down driving cylinder 421 is connected with the positioning seat 1, the up-down guide rod 423 extends along the up-down direction, the upper side of the up-down guide rod 423 is fixedly connected with the up-down connecting plate 422, the up-down guide rod 423 passes through the positioning seat 1 and is slidably connected with the positioning seat 1 along the up-down direction, and the lower side of the up-down guide rod 423 is connected with the hole forming mechanism 41. The up-down driving cylinder 421 and the up-down guide rod 423 can drive the hole forming mechanism 41 to move along the up-down direction.

[0046] The hole forming mechanism 41 is arranged on the lower side of the positioning seat 1, the up-down driving cylinder 421 is arranged on the upper side of the positioning seat 1, the up-down guide rod 423 is slidably connected with the positioning seat 1 and plays a guiding role, the number of the up-down guide rod 423 can be one or more than two, preferably the number of the up-down guide rod 423 is four, and the up-down driving cylinder 421 is connected with the hole forming mechanism 41 through the up-down guide rod 423 passing through the positioning seat 1, so that the structure of the space on the lower side of the positioning seat 1 can be reduced, and the space utilization is more reasonable and compact. In other embodiments, the hole forming up-down driving mechanism 42 can also adopt a motion module such as a lead screw, a gear and a rack.

[0047] Further, the top pipe driving mechanism 32 comprises a top pipe cylinder, the top pipe assembly further comprises a moving slide 34, the moving slide 34 is slidably connected with the base 6 along the left-right direction, the top block 31 and the positioning seat 1 are fixedly connected with the moving slide 34, the piston rod of the top pipe cylinder is connected with the moving slide 34, and the top pipe cylinder can drive the moving slide 34 to move along the left-right direction.

[0048] In some specific embodiments, the pipe holding assembly 2 comprises a supporting member 21 and a clamping driving mechanism 22, the clamping driving mechanism 22 is provided with a front clamping block 23 and a rear clamping block 24, the supporting member 21 is used for supporting the pipe 5, the front clamping block 23 and the rear clamping block 24 are arranged on the side of the supporting member 21, the upper side of the front clamping block 23 and the rear clamping block 24 is higher than the upper side of the supporting member 21, the clamping driving mechanism 22 is in transmission connection with the front clamping block 23 and the rear clamping block 24, and the clamping driving mechanism 22 can drive the front clamping block 23 and the rear clamping block 24 to move close to each other to clamp the pipe 5 or move away from each other to release the pipe 5.

[0049] The clamping driving mechanism 22 can drive the front clamping block 23 and the rear clamping block 24 to clamp the pipe 5, and the front and rear positions of the pipe 5 can be positioned, so that the pipe 5 can enter the positioning groove 11 more accurately; when the hole is drilled, the front clamping block 23 and the rear clamping block 24 can also clamp the pipe 5, so as to prevent the pipe 5 from moving away from the side of the top block 31, and the drilling accuracy is improved. The clamping driving mechanism 22 can adopt a clamping jaw air cylinder or other motor-driven opening and closing mechanism.

[0050] Further, the pipe holding assembly 2 further comprises a pipe lifting driving mechanism 25, the pipe lifting driving mechanism is in transmission connection with the supporting member 21 and the clamping driving mechanism 22, and the pipe lifting driving mechanism 25 can drive the supporting member 21, the clamping driving mechanism 22, the front clamping block 23 and the rear clamping block 24 to move in the up-down direction.

[0051] When the pipe 5 is put in, the supporting member 21, the clamping driving mechanism 22, the front clamping block 23 and the rear clamping block 24 are located at the lower side, then the pipe lifting driving mechanism 25 drives the supporting member 21, the clamping driving mechanism 22, the front clamping block 23 and the rear clamping block 24 to rise upward and lift the pipe 5 to the height of the positioning groove 11, so as to realize the feeding of the pipe 5, and the pipe 5 can be supported and clamped when being located at the upper side. The pipe lifting driving mechanism 25 can adopt an air cylinder, or a lead screw, a gear and a rack, etc.

[0052] In some specific embodiments, referring to Figure 4 and Figure 5 , the end of the top block 31 is provided with a positioning cone 311 which is matched with the shape of the port of the pipe 5, and when the top block 31 abuts against the end face of the pipe 5, the positioning cone 311 can be partially inserted into the port of the pipe 5 and abut against the end face of the pipe 5.

[0053] When the top block 31 approaches the end of the pipe 5, the positioning cone 311 is inserted into the port of the pipe 5 and abuts against the end face of the pipe 5, the positioning cone 311 can position the up-down and front-back positions of the end face of the pipe 5, provide support for the end face of the pipe 5 during the hole machining process, reduce the shaking of the end of the pipe 5, and improve the machining accuracy of the hole. The shape of the positioning cone 311 is matched with the shape of the port of the pipe 5, and specifically, the positioning cone 311 can have an upper positioning slope, a lower positioning slope, a front side and a rear side, and the upper positioning slope and the lower positioning slope abut against the upper side and the lower side of the port of the pipe 5, respectively; if the pipe 5 is circular, the positioning cone 311 can be a circular cone.

[0054] In some embodiments, the positioning seat 1 is provided with a positioning block 12, the positioning block 12 is detachably connected with the positioning seat 1, and the positioning groove 11 is arranged on the lower side of the positioning block 12.

[0055] The positioning block 12 is detachably connected with the positioning seat 1, different positioning blocks 12 can be replaced according to the cross-sectional shape and size of different pipes 5, so that different pipes 5 can be switched and machined, or the positioning block 12 can be conveniently replaced after the positioning groove 11 is worn, so that the positioning accuracy is maintained.

[0056] Further, the upper side of the positioning block 12 is provided with a positioning dovetail groove 121, and the lower side of the positioning seat 1 is provided with a positioning strip which is matched with the shape of the positioning dovetail groove 121.

[0057] The positioning block 12 is connected to the positioning strip of the positioning seat 1 through the positioning dovetail groove 121, and the cooperation of the positioning dovetail groove 121 and the positioning strip can conveniently maintain the installation accuracy when the positioning block 12 is replaced, reduce the adjustment times, and improve the efficiency. After the positioning dovetail groove 121 and the positioning strip are inserted, the positioning block 12 and the positioning seat 1 can be fixed by screws.

[0058] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation made by the present application specification and drawings, or direct / indirect application in other related technical fields under the inventive concept of the present application are included in the patent protection range of the present application.

Claims

1. A pipe end opening device characterized by comprising: The utility model relates to a pipe positioning device, which comprises the following parts: a positioning seat (1), the lower side of the positioning seat (1) is provided with a positioning groove (11) for positioning the end of a pipe (5), the lower side and the left and right sides of the positioning groove (11) are open; a pipe supporting assembly (2), which is arranged on the left side or the right side of the positioning groove (11) and faces the positioning groove (11), and is used for supporting the pipe (5); a pipe jacking assembly, which comprises a jacking block (31) and a pipe jacking driving mechanism (32), the jacking block (31) is arranged on the side of the positioning groove (11) away from the pipe supporting assembly (2) and faces the positioning groove (11), the pipe jacking driving mechanism (32) is in driving connection with the jacking block (31), the pipe jacking driving mechanism (32) can drive the jacking block (31) to move in the left-right direction, and the jacking block (31) can abut against the end face of the pipe (5) when moving towards the side of the pipe supporting assembly (2); a hole opening assembly, which comprises a hole opening mechanism (41) and a hole opening up-down driving mechanism (42), the hole opening mechanism (41) is arranged on the lower side of the positioning groove (11), and the hole opening up-down driving mechanism (42) is in driving connection with the hole opening mechanism (41), the hole opening up-down driving mechanism (42) can drive the hole opening mechanism (41) to move in the up-down direction, and the hole opening mechanism (41) can open a hole in the pipe (5) from the lower side of the pipe (5).

2. The pipe end opening apparatus as set forth in claim 1, wherein The positioning seat (1) is fixed relative to the jacking block (31), the hole opening mechanism (41) is fixed relative to the positioning seat (1) in the left-right direction, and the pipe jacking driving mechanism (32) can drive the jacking block (31), the positioning seat (1) and the hole opening mechanism (41) to move towards or away from the pipe supporting assembly (2) synchronously.

3. The pipe end opening apparatus as set forth in claim 2, wherein The hole opening up-down driving mechanism (42) comprises an up-down driving cylinder (421), an up-down connecting plate (422) and an up-down guide rod (423), the up-down driving cylinder (421) and the up-down connecting plate (422) are arranged on the upper side of the positioning seat (1), the up-down connecting plate (422) is fixedly connected with the cylinder body of the up-down driving cylinder (421), the piston rod of the up-down driving cylinder (421) is connected with the positioning seat (1), the up-down guide rod (423) extends in the up-down direction, the upper side of the up-down guide rod (423) is fixedly connected with the up-down connecting plate (422), the up-down guide rod (423) penetrates through the positioning seat (1) and is in sliding connection with the positioning seat (1) in the up-down direction, and the lower side of the up-down guide rod (423) is connected with the hole opening mechanism (41), so that the up-down driving cylinder (421) and the up-down guide rod (423) can drive the hole opening mechanism (41) to move in the up-down direction.

4. The pipe end opening apparatus as set forth in claim 2, wherein The pipe jacking driving mechanism (32) comprises a pipe jacking cylinder, the pipe assembly further comprises a moving slide (34), the top block (31) and the positioning seat (1) are fixedly connected to the moving slide (34), and a piston rod of the pipe jacking cylinder is connected with the moving slide (34), so that the pipe jacking cylinder can drive the moving slide (34) to move in the left-right direction.

5. The pipe end opening apparatus as set forth in claim 1, wherein The pipe supporting assembly (2) comprises a supporting piece (21) and a clamping driving mechanism (22), the clamping driving mechanism (22) is provided with a front clamping block (23) and a rear clamping block (24), the supporting piece (21) is used for supporting the pipe material (5), the front clamping block (23) and the rear clamping block (24) are arranged on the side of the supporting piece (21), the upper side of the front clamping block (23) and the rear clamping block (24) is higher than the upper side of the supporting piece (21), the clamping driving mechanism (22) is in transmission connection with the front clamping block (23) and the rear clamping block (24), and the clamping driving mechanism (22) can drive the front clamping block (23) and the rear clamping block (24) to move close to each other to clamp the pipe material (5) or move away from each other to release the pipe material (5).

6. The pipe end opening apparatus as set forth in claim 5, wherein The pipe supporting assembly (2) further comprises a pipe supporting jacking driving mechanism (25), the pipe jacking driving mechanism is in transmission connection with the supporting piece (21) and the clamping driving mechanism (22), and the pipe supporting jacking driving mechanism (25) can drive the supporting piece (21), the clamping driving mechanism (22), the front clamping block (23) and the rear clamping block (24) to move in the up-down direction.

7. The pipe end opening apparatus as set forth in claim 1, wherein The end of the top block (31) is provided with a positioning taper (311) which is arranged in a shape matched with the port of the pipe material (5), and when the top block (31) abuts against the end face of the pipe material (5), the positioning taper (311) can be partially inserted into the port of the pipe material (5) and abut against the end face of the pipe material (5).

8. The pipe end opening apparatus as set forth in claim 1, wherein The positioning seat (1) is provided with a positioning block (12), the positioning block (12) is detachably connected with the positioning seat (1), and the positioning groove (11) is arranged on the lower side of the positioning block (12).

9. The pipe end opening apparatus as defined in claim 8, wherein The upper side of the positioning block (12) is provided with a positioning dovetail groove (121), the lower side of the positioning seat (1) is provided with a positioning strip which is arranged in a shape matched with the positioning dovetail groove (121), and the positioning strip is inserted into the positioning dovetail groove (121).

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