CN210549278U

CN210549278U - Linking machine

Info

Publication number: CN210549278U
Application number: CN201921583040.8U
Authority: CN
Inventors: 邓宁嘉; 郭丰; 许强; 王斌; 沈宽
Original assignee: NANJING BAOTAI SPECIAL MATERIALS CO Ltd
Current assignee: NANJING BAOTAI SPECIAL MATERIALS CO Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-05-19
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a seaming machine, which comprises a frame consisting of a base, a top seat and two upright posts; a support seat for supporting a pipe to be welded is arranged on the base, and three clamping oil cylinders are arranged on the rack; the three clamping oil cylinders comprise a left clamping oil cylinder, a right clamping oil cylinder and a top clamping oil cylinder; the top clamping oil cylinder is connected with a chain wheel mechanism, and drives the left clamping oil cylinder and the right clamping oil cylinder to synchronously move up and down through the chain wheel mechanism so as to realize the adjustment of the height of a horizontal clamping position; the top surface of the supporting seat and the front end of the clamping oil cylinder are respectively provided with a roller group, the roller group arranged on the top clamping oil cylinder corresponds to the roller group arranged on the supporting seat up and down, and the roller group arranged on the left clamping oil cylinder corresponds to the roller group arranged on the right clamping oil cylinder left and right.

Description

Linking machine

Technical Field

The utility model relates to a processingequipment of tubular product, especially a linking machine.

Background

In order to ensure the quality of the stitch welding of the pipe, the pipe is usually fixed during the stitch welding. The tubular product linking machine among the prior art adopts the manual work to press from both sides the tight fixed with tubular product, and manual work is not only high in labor strength, but also time-wasting, and machining efficiency is very low.

Disclosure of Invention

The utility model aims to solve the technical problem that a linking machine is provided, this linking machine not only welds tubular product size wide range, and machining efficiency is high, the stable performance moreover, and its application method is simple, and operation control is easy.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a seaming machine comprises a frame which is composed of a base, a top seat and two upright posts and is of a square or rectangular structure; a supporting seat for supporting a pipe to be welded is fixedly arranged at the center of the base, and three clamping oil cylinders which are matched with each other and push the pipe on the supporting seat to be clamped by means of hydraulic pressure are arranged on the rack; the three clamping oil cylinders comprise a left clamping oil cylinder which is arranged in the left upright column in a sliding manner and used for pressing and clamping the pipe from the left horizontal direction, a right clamping oil cylinder which is arranged in the right upright column in a sliding manner and used for pressing and clamping the pipe from the right horizontal direction, and a top clamping oil cylinder which is fixedly arranged on the top seat and used for pressing and clamping the pipe from the upper side to the lower side; the clamping oil cylinder at the top is connected with a chain wheel mechanism, and the clamping oil cylinder at the top drives the clamping oil cylinder at the left side and the clamping oil cylinder at the right side to synchronously move up and down through the chain wheel mechanism so as to realize the height adjustment of a horizontal clamping position; the top surface of the supporting seat and the front end of the piston rod of each clamping oil cylinder are respectively provided with a roller group which is matched with the pipe in a rolling contact manner, the roller group arranged on the clamping oil cylinder at the top corresponds to the roller group arranged on the supporting seat up and down, and the roller group arranged on the clamping oil cylinder at the left side corresponds to the roller group arranged on the clamping oil cylinder at the right side left and right.

In order to optimize the technical scheme, the specific measures adopted further comprise:

the base and the top seat are both composed of two parallel channel steels and a steel plate fixedly connected with the two channel steels through bolts; the steel plate on the base is connected to the top edges of the two channel steels, and the steel plate on the top seat is connected to the bottom edges of the two channel steels; the utility model discloses a clamping cylinder's of top, the cylinder body fixed mounting of the clamping cylinder at top is on the steel sheet of top, the piston rod of the clamping cylinder at this top passes hydro-cylinder pilot hole downwardly extending perpendicularly.

The front end of the piston rod of the top clamping oil cylinder is connected with an upper pressure plate, a roller group arranged on the top clamping oil cylinder is fixed on the bottom surface of the upper pressure plate, and the roller group is connected with the piston rod of the top clamping oil cylinder through the upper pressure plate; two pressure plate guide rods for improving the vertical downward pressing stability of the clamping oil cylinder are arranged on the upper pressure plate; the piston rods of the clamping oil cylinders at the tops of the two pressure plate guide rods are arranged symmetrically left and right of the symmetry axis, guide rod sliding holes for guiding the pressure plate guide rods in an up-and-down sliding mode are formed in a steel plate of the top base, wear-resistant copper guide sliding sleeves are installed in the guide rod sliding holes, the pressure plate guide rods are matched with the guide sliding sleeves in a sliding and sleeving mode, and the bottom ends of the pressure plate guide rods and the front ends of the piston rods of the clamping oil cylinders at the tops of the pressure plate guide rods are fixedly connected with the top surface.

The upright post is a hollow upright post with two open sides, and the hollow upright post is formed by welding two longitudinal plates, an upper transverse plate connected to the upper ends of the two longitudinal plates and a lower transverse plate connected to the lower ends of the two longitudinal plates; a sliding guide rail mechanism is arranged in a cavity of the hollow upright post; the sliding guide rail mechanism consists of a guide rail, a sliding block and a sliding plate; the guide rail is longitudinally fixed on the inner wall of the vertical plate of the upright post, the slide block is fixed on the slide plate, and the sliding chute of the slide block is matched with the track of the guide rail in a sliding way; the left clamping oil cylinder and the right clamping oil cylinder are both arranged on the sliding plate and can move up and down along the guide rail along with the sliding plate.

The chain wheel mechanism consists of a chain, a chain wheel and a chain wheel fixing seat; the chain wheel is rotatably installed on a chain wheel fixing seat through a chain wheel shaft, the chain wheel fixing seat is fixedly installed on a sliding plate of the sliding guide rail mechanism, the chain wheel is meshed with the chain, one end of the chain is fixedly hoisted on the upper pressing plate, and the other end of the chain is fixedly connected with the top seat through the chain wheel after 360-degree reversing.

The sliding plate is provided with an oil cylinder mounting hole for mounting a clamping oil cylinder, a horizontal guide hole is formed in the sliding plate below the oil cylinder mounting hole, a wear-resistant copper horizontal sliding sleeve is mounted in the horizontal guide hole, and a horizontal guide rod for improving the pressure application stability of the clamping oil cylinder in the horizontal direction is slidably sleeved in the horizontal sliding sleeve; the front end of the horizontal guide rod and the front end of a piston rod of a clamping oil cylinder which applies pressure in the horizontal direction are both connected with a linkage plate through a connecting flange; the roller group arranged on the left clamping oil cylinder and the roller group arranged on the right clamping oil cylinder are both fixedly arranged on the linkage plate.

The roller group consists of a roller seat, a roller shaft, a roller bearing and a baffle; the roller seat is used for being fixed on the linkage plate or on the top surface of the supporting seat or on the bottom surface of the upper pressing plate; the roller is provided with an axial through hole, the roller bearings are positioned and installed at two ends of the axial through hole of the roller, the roller shaft penetrates through the axial through hole of the roller, the roller shaft is matched with the roller bearings in a rotating sleeved mode, and the baffle is clamped in the clamping groove of the roller shaft.

When a piston rod of the clamping oil cylinder at the top drives the upper pressure plate to move upwards, the upper pressure plate pulls the sliding plate through the chain to drive the clamping oil cylinder at the left side and the clamping oil cylinder at the right side to synchronously move upwards along the guide rail; when a piston rod of the clamping oil cylinder at the top pushes the upper pressure plate to move downwards, the clamping oil cylinder at the left side and the clamping oil cylinder at the right side synchronously move downwards along the guide rail under the action of gravity.

Compared with the prior art, the utility model discloses a linking machine can be through the tight hydro-cylinder of three clamp that relies on hydraulic pressure to promote, and four directions about will being located the welding tubular product of treating on the supporting seat are pressed from both sides tightly fixedly from top to bottom, and not only press from both sides tightly firmly, hydraulic control moreover, degree of automation is high, saves worry laborsaving. The clamping oil cylinder positioned at the top of the upper part is also connected with a chain wheel mechanism, the clamping oil cylinder at the top can also drive the two horizontal clamping oil cylinders on the left side and the right side to synchronously move up and down through the chain wheel mechanism, and the height adjustment of the horizontal clamping positions of the two horizontal clamping oil cylinders is realized, so that the clamping oil cylinders can be matched with pipes with different diameters to clamp and fix.

The utility model discloses the tubular product presss from both sides tight efficient, be suitable for tubular product diameter scope to control is simple, the operation is stable, can reduce artifical intensity of labour effectively, reduces the cost expenditure.

Drawings

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a side view structural diagram of the present invention;

fig. 3 is a schematic view of an assembly structure of the sprocket mechanism and the slide rail mechanism of the present invention;

FIG. 4 is a front view of the column of the present invention;

FIG. 5 is a side view structural view of FIG. 4;

FIG. 6 is a top view of the base of the present invention;

fig. 7 is a bottom view of the top base of the present invention;

FIG. 8 is a cross-sectional structural view of the slider of the present invention;

FIG. 9 is a left side view structural diagram of FIG. 8;

fig. 10 is a partial sectional structural view of the roller train of the present invention.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Wherein the reference numerals are: the device comprises a linkage plate D, a connecting flange F, a pipe G, a stand column bolt hole K1, a support seat bolt hole K2, an oil cylinder assembly hole K3, a guide rod slide hole K4, a frame 1, a base 11, a top seat 12, a stand column 13, a longitudinal plate 131, an upper transverse plate 132, a lower transverse plate 133, a support seat 2, a clamping oil cylinder 3, a piston rod 31, a cylinder body 32, a chain wheel mechanism 4, a chain 41, a chain wheel 42, a chain wheel fixing seat 43, a chain wheel shaft 44, a roller group 5, a roller seat 51, a roller 52, a roller shaft 53, a roller bearing 54, a baffle plate 55, an upper pressing plate 6, a sliding guide rail mechanism 7, a guide rail 71, a sliding block 72, a sliding plate 73, an oil cylinder mounting hole 73a, a horizontal guide hole 73b, a pressing plate guide.

Fig. 1 to 10 are schematic structural views of the present invention. As shown in the figures, the utility model provides a seaming machine, which comprises a frame 1 which is a square or rectangular frame structure and consists of a base 11, a top seat 12 and two upright posts 13; the base 11 is provided with a support seat 2 at the center by bolts, and the support seat 2 is used for supporting a pipe G to be welded which is conveyed into the frame 1 of the seaming machine by a conveyor (not shown in the figure). In order to press from both sides tight fixed with convenient tubular product G stitch welding with tubular product G, the utility model discloses be equipped with the tight hydro-cylinder 3 of three clamp that relies on hydraulic pressure to promote in frame 1, the tight fixed of tubular product G clamp on four directions will supporting seat 2 is controlled from top to bottom to three tight hydro-cylinder 3 cooperation supporting seat 2. One of the three clamping oil cylinders 3 is longitudinally arranged, and the other two clamping oil cylinders are horizontally arranged. One of the two horizontally arranged clamping cylinders 3 is slidably arranged in the left upright 13 to press and clamp the pipe G from the left side in the horizontal direction, and the other of the two horizontally arranged clamping cylinders 3 is slidably arranged in the right upright 13 to press and clamp the pipe G from the right side in the horizontal direction. The clamping oil cylinder 3 which is longitudinally arranged is fixedly arranged on the top seat 12 and is used for vertically pressing and clamping the pipe G from the upper part downwards. The longitudinally arranged clamping cylinder 3 of the three clamping cylinders 3 can be understood as the top clamping cylinder 3, and similarly, the clamping cylinder 3 arranged in the left upright column 13 can be understood as the left clamping cylinder 3, and the clamping cylinder 3 arranged in the right upright column 13 can be understood as the right clamping cylinder 3.

In order to enable the utility model discloses tight pipe diameter scope is wider, and the tight hydro-cylinder 3 of clamp at top is connected with sprocket mechanism 4, and the tight hydro-cylinder 3 of clamp at top can drive the tight hydro-cylinder 3 of clamp on left side and right side through sprocket mechanism 4 and reciprocate in step, makes the tight hydro-cylinder 3 of clamp on left tight hydro-cylinder 3 and right side can be according to the difference of tubular product G diameter, adjusts the height of horizontal clamping position to guarantee to be in optimum position department all the time to tubular product G's clamping point position ability. In order to reduce the resistance that tubular product G carried, the utility model discloses on the top surface of supporting seat 2 to and the front end of the piston rod 31 of each clamping cylinder 3 all install be used for with tubular product G rolling contact complex roller train 5, the pressure that clamping cylinder 3 was exerted passes through roller train 5 and carries on the tubular product G. In order to realize better clamping and ensure that the applied clamping force is on the same straight line, the roller group 5 arranged on the clamping oil cylinder 3 at the top corresponds to the roller group 5 arranged on the supporting seat 2 up and down, and the roller group 5 arranged on the clamping oil cylinder 3 at the left side corresponds to the roller group 5 arranged on the clamping oil cylinder 3 at the right side left and right.

By the utility model discloses a can find out in fig. 2, the utility model discloses a base 11 and footstock 12 all constitute with the steel sheet of a through these two piece channel-section steels of bolt fixed connection by two parallel arrangement's channel-section steel. The steel plate on the base 11 is connected to the top edges of the two channel steels, and the steel plate on the top seat 12 is connected to the bottom edges of the two channel steels; upright post bolt holes K1 used for being connected with the upright posts 13 are processed at the two ends close to the left and the right on the steel plate of the base 11 and the steel plate of the top seat 12, and correspondingly, bolt holes are also formed in the upright posts 13 so as to conveniently connect the upright posts 13, the base 11 and the top seat 12 into a complete machine frame 1 through bolts. Since the base 11 and the top seat 12 are mounted with different parts, as can be seen from fig. 6, a support seat bolt hole K2 for mounting the support seat 2 is formed in the steel plate of the base 11 at a position located in the middle, while as can be seen from fig. 7, a cylinder mounting hole K3 for mounting the top clamping cylinder 3 is formed in the center of the steel plate of the top seat 12, the cylinder body 32 of the top clamping cylinder 3 is fixedly mounted on the steel plate of the top seat 12, and the piston rod 31 of the top clamping cylinder 3 vertically extends through the cylinder mounting hole K3.

As shown in fig. 1, the front end of the piston rod 31 of the clamping cylinder 3 at the top of the utility model is connected with the upper pressing plate 6, the roller set 5 installed on the clamping cylinder 3 at the top is fixed on the bottom surface of the upper pressing plate 6, and the roller set 5 is connected with the piston rod 31 of the clamping cylinder 3 at the top through the upper pressing plate 6. In order to ensure the stability of vertically pressing downwards by the clamping oil cylinder 3 at the top, two pressure plate guide rods 8 are arranged on the upper pressure plate 6; the two pressure plate guide rods 8 are arranged symmetrically with the piston rod 31 of the clamping cylinder 3 at the top as a symmetry axis. As shown in fig. 7, a guide rod sliding hole K4 for guiding the press plate guide rod 8 to slide up and down is formed in the steel plate of the top seat 12, a wear-resistant copper guide sliding sleeve 81 is installed in the guide rod sliding hole K4, and the press plate guide rod 8 is slidably fitted with the guide sliding sleeve 81. The bottom end of the pressure plate guide rod 8 and the front end of a piston rod 31 of the top clamping oil cylinder 3 are fixedly connected with the top surface of the upper pressure plate 6 through a connecting flange F.

As shown in fig. 4 and 5, the upright 13 is a hollow upright with two open sides, and the hollow upright 13 is composed of two longitudinal plates 131, an upper transverse plate 132 connected to the upper ends of the two longitudinal plates 131, and a lower transverse plate 133 connected to the lower ends of the two longitudinal plates 131 by welding. Bolt holes are machined in the upper cross plate 132 and the lower cross plate 133 and used for connecting the top seat 12 and the base 11 through bolts. The two longitudinal plates 131, the upper transverse plate 132 and the lower transverse plate 133 form a rectangular hollow upright post through welding, and the left side surface and the right side surface of the hollow upright post are not provided with the longitudinal plates, so that the left side and the right side of the hollow upright post are transparent. A sliding guide rail mechanism 7 is installed in the cavity of the hollow upright column 13. As shown in fig. 1, 2 and 3, the slide rail mechanism 7 is composed of a rail 71, a slider 72 and a slider 73; the guide rails 71 are longitudinally fixed on the inner walls of longitudinal plates 131 of the upright 13, two rows of bolt holes for mounting the guide rails 71 are longitudinally processed on each longitudinal plate 131, and two guide rails 71 are longitudinally and parallelly mounted on each longitudinal plate 131. The sliding block 72 is fixed on the sliding plate 73, a sliding groove is processed on the sliding block 72, a track is formed on the guide rail 71, and the sliding groove of the sliding block 72 is matched with the track of the guide rail 71 in a sliding mode. A slider 72 is slidably fitted on each guide rail 71. The cylinder body 32 of the left clamp cylinder 3 and the cylinder body 32 of the right clamp cylinder 3 are fixedly mounted on the sliding plate 73 of the respective slide rail mechanism 7, so that the left clamp cylinder 3 and the right clamp cylinder 3 can be guided by the respective sliding plate 73 to move up and down along the guide rail 71.

As shown in fig. 1 and 3, the sprocket mechanism 4 is composed of a chain 41, a sprocket 42, and a sprocket fixing base 43. The sprocket 42 is rotatably mounted on the sprocket fixing base 43 through the sprocket shaft 44, the sprocket fixing base 43 is fixedly mounted on the sliding plate 73 of the sliding guide mechanism 7 through bolts, and the sprocket fixing base 43 may be integrally formed on the sliding plate 73. The chain wheel is engaged with the chain, one end of the chain 41 is fixed on the upper pressure plate 6 in a hoisting way, and the other end of the chain 41 is fixedly connected with the top seat 12 after 360-degree reversing through the chain wheel 42.

As shown in fig. 8 and 9, the sliding plate 73 of the present invention is provided with a cylinder mounting hole 73a for mounting the clamping cylinder 3, and the sliding plate 73 is provided with a horizontal guide hole 73b below the cylinder mounting hole 73a, and the horizontal guide hole 73b is provided with a wear-resistant copper horizontal sliding sleeve 91 mounted by a bolt. The horizontal sliding sleeve 91 is slidably sleeved with a horizontal guide rod 9, and the horizontal guide rod 9 is used for improving the horizontal pressing and clamping stability of the clamping cylinder 3. The front end of the horizontal guide rod 9 of the utility model and the front end of the piston rod 31 of the clamping oil cylinder 3 which applies pressure in the horizontal direction are all connected with a linkage plate D through a connecting flange F; the roller group 5 arranged on the left clamping oil cylinder 3 and the roller group 5 arranged on the right clamping oil cylinder 3 are both fixedly arranged on the linkage plate D.

As shown in fig. 10, the roller assembly 5 of the present invention is composed of a roller seat 51, a roller 52, a roller shaft 53, a roller bearing 54 and a baffle 55. The roller seat 51 is used for being fixed on the linkage plate D or on the top surface of the supporting seat 2 or on the bottom surface of the upper pressing plate 6, and the roller seat 51 is used for providing supporting force for the roller 52. The roller 52 is provided with an axial through hole along the axial line, roller bearings 54 are positioned and installed at two ends of the axial through hole of the roller 52, and in order to prevent the roller bearings 54 from falling off the roller 52, hole snap springs for limiting the roller bearings 54 are clamped in the axial through hole of the roller 52. The roller shaft 53 is arranged in the axial through hole of the roller 52 in a penetrating way, and the roller shaft 53 is matched with the roller bearing 54 in a rotating and sleeving way. The two ends of the roller shaft 53 are mounted in the roller shaft supporting holes formed in the roller base 51, and the baffle 55 is clamped in the clamping groove of the roller shaft 53 to prevent the roller shaft 53 from moving.

The utility model discloses a linking machine is when the piston rod 31 of the tight hydro-cylinder 3 of clamp at top drives top board 6 rebound, and this top board 6 passes through chain 41 pulling slide 73 and drives two horizontal clamping hydro-cylinders 3 (the tight hydro-cylinder of clamp on left clamp hydro-cylinder and right side promptly) and follow the synchronous rebound of guide rail 71 direction. When the piston rod 31 of the top clamping cylinder 3 pushes the upper press plate 6 to move downwards, the left clamping cylinder 3 and the right clamping cylinder 3 synchronously move downwards along the guide rail 71 along with the sliding plate 73 under the action of gravity.

The utility model also provides a use method of the seaming machine, which comprises the following steps;

firstly, placing a pipe G to be welded on a conveyor, and conveying the pipe G to a roller set 5 of a support base 2 of a seaming machine by using the conveyor;

step two, after the pipe G is conveyed in place, the clamping oil cylinder 3 at the top works, and a piston rod 31 of the clamping oil cylinder 3 at the top extends out to push an upper pressing plate 6 to vertically move downwards, so that a roller set 5 on the upper pressing plate 6 longitudinally clamps the pipe to be welded on a supporting seat 2; the upper pressing plate 6 moves downwards to enable the chain 41 to be in a relatively relaxed state, the clamping oil cylinder 3 on the left side and the clamping oil cylinder 3 on the right side move downwards simultaneously along with the sliding plate 73 under the action of self weight until the piston rod 31 of the clamping oil cylinder 3 on the top extends to a clamping position, namely, after the roller group 5 arranged on the clamping oil cylinder 3 on the top is matched with the roller group 5 arranged on the supporting seat 2 to clamp the pipe G from the upper direction and the lower direction, the upper pressing plate 6 stops moving downwards;

step three, after the upper pressing plate 6 stops moving downwards, the left clamping oil cylinder 3 and the right clamping oil cylinder 3 are correspondingly fixed at a better horizontal height, at the moment, the left clamping oil cylinder 3 and the right clamping oil cylinder 3 start to work, a piston rod 31 of the left clamping oil cylinder 3 extends out to push a roller set 5 arranged on the left clamping oil cylinder 3 to move horizontally rightwards until the roller set 5 arranged on the left clamping oil cylinder 3 is horizontally clamped with the pipe G to be welded, and meanwhile, a piston rod 31 of the right clamping oil cylinder 3 also extends out to push the roller set 5 arranged on the right clamping oil cylinder 3 to move horizontally leftwards until the roller set 5 arranged on the right clamping oil cylinder 3 is horizontally clamped with the pipe G to be welded;

fourthly, after the pipe G is clamped and fixed, spot welding is started, and then full welding is carried out on the spot-welded pipe G;

after the pipe G is fully welded, the piston rod 31 of the left clamping oil cylinder 3 and the piston rod 31 of the right clamping oil cylinder 3 begin to contract, and the horizontal clamping of the pipe G is released;

sixthly, after the horizontal clamping on the pipe G is released by the left clamping oil cylinder 3 and the right clamping oil cylinder 3, the piston rod 31 of the top clamping oil cylinder 3 begins to contract, the piston rod 31 of the top clamping oil cylinder 3 drives the upper pressing plate 6 to move upwards, so that the roller group 5 on the upper pressing plate 6 releases the longitudinal clamping on the pipe G, and meanwhile, the upper pressing plate 6 pulls the sliding plate 72 through the chain wheel mechanism 4 to drive the left clamping oil cylinder 3 and the right clamping oil cylinder 3 to move upwards synchronously along the guide rail 71;

and seventhly, after the clamping oil cylinder 3 at the top is contracted in place, the conveyer works to convey the fully welded pipe G out of the seaming machine.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A seaming machine comprises a frame (1) which is composed of a base (11), a top seat (12) and two upright posts (13) and is of a square or rectangular structure; the method is characterized in that: a supporting seat (2) for supporting a pipe (G) to be welded is fixedly arranged at the center of the base (11), and three clamping oil cylinders (3) which are matched with each other and push the pipe (G) on the supporting seat (2) to be clamped by hydraulic pressure are arranged on the rack (1); the three clamping oil cylinders (3) comprise a left clamping oil cylinder (3) which is arranged in the left upright post (13) in a sliding manner and is used for pressing and clamping the pipe (G) from the left horizontal direction, a right clamping oil cylinder (3) which is arranged in the right upright post (13) in a sliding manner and is used for pressing and clamping the pipe (G) from the right horizontal direction, and a top clamping oil cylinder (3) which is fixedly arranged on the top seat (12) and is used for pressing and clamping the pipe (G) from the upper side to the lower side; the clamping oil cylinder (3) at the top is connected with a chain wheel mechanism (4), and the clamping oil cylinder (3) at the top drives the clamping oil cylinder (3) at the left side and the clamping oil cylinder (3) at the right side to synchronously move up and down through the chain wheel mechanism (4) so as to realize the height adjustment of a horizontal clamping position; the top surface of the supporting seat (2) and the front end of the piston rod (31) of each clamping oil cylinder (3) are respectively provided with a roller group (5) which is matched with a pipe (G) in a rolling contact manner, the roller groups (5) arranged on the clamping oil cylinders (3) at the top correspond to the roller groups (5) arranged on the supporting seat (2) up and down, and the roller groups (5) arranged on the clamping oil cylinders (3) at the left side correspond to the roller groups (5) arranged on the clamping oil cylinders (3) at the right side left and right.

2. The linking machine according to claim 1, wherein: the base (11) and the top seat (12) are both composed of two parallel channel steels and a steel plate fixedly connected with the two channel steels through bolts; the steel plate on the base (11) is connected to the top edges of the two channel steels, and the steel plate on the top seat (12) is connected to the bottom edges of the two channel steels; the steel sheet of base (11) on with the steel sheet of footstock (12) on both ends department near left and right sides all process and be used for the stand bolt hole (K1) that is connected with stand (13), and the steel sheet of base (11) on process the supporting seat bolt hole (K2) that are used for erection bracing seat (2) in the position department that lies in the middle part, the steel sheet center department of footstock (12) open and to have hydro-cylinder pilot hole (K3) that are used for installing the clamping cylinder (3) at top, the top cylinder body (32) fixed mounting of clamping cylinder (3) on the steel sheet of footstock (12), piston rod (31) of the clamping cylinder (3) at this top pass hydro-cylinder pilot hole (K3) downwardly extending perpendicularly.

3. A seaming machine as defined in claim 2, further comprising: the front end of a piston rod (31) of the clamping oil cylinder (3) at the top is connected with an upper pressure plate (6), a roller group (5) arranged on the clamping oil cylinder (3) at the top is fixed on the bottom surface of the upper pressure plate (6), and the roller group (5) is connected with the piston rod (31) of the clamping oil cylinder (3) at the top through the upper pressure plate (6); two pressure plate guide rods (8) for improving the vertical downward pressing stability of the clamping oil cylinder (3) are arranged on the upper pressure plate (6); two clamp plate guide arm (8) use piston rod (31) of the tight hydro-cylinder (3) of top to set up for symmetry axis bilateral symmetry, the steel sheet of footstock (12) on open and to have guide arm slide opening (K4) that provide the direction for the upper and lower slip of clamp plate guide arm (8), guide arm slide opening (K4) in install wear-resisting copper direction sliding sleeve (81), clamp plate guide arm (8) cooperate with direction sliding sleeve (81) slip suit, the bottom of clamp plate guide arm (8) and the front end of top tight hydro-cylinder (3) piston rod (31) all be connected with the top surface of top plate (6) through flange (F).

4. A seaming machine as defined in claim 3, further comprising: the upright post (13) is a hollow upright post with two open sides, and the hollow upright post (13) is composed of two longitudinal plates (131), an upper transverse plate (132) connected to the upper ends of the two longitudinal plates (131) and a lower transverse plate (133) connected to the lower ends of the two longitudinal plates (131) through welding; a sliding guide rail mechanism (7) is arranged in a cavity of the hollow upright post (13); the sliding guide rail mechanism (7) consists of a guide rail (71), a sliding block (72) and a sliding plate (73); the guide rail (71) is longitudinally fixed on the inner wall of a longitudinal plate (131) of the upright post (13), the sliding block (72) is fixed on the sliding plate (73), and a sliding groove of the sliding block (72) is matched with a track of the guide rail (71) in a sliding manner; the clamping oil cylinder (3) on the left side and the clamping oil cylinder (3) on the right side are both installed on the sliding plate (73) and can move up and down along the guide rail (71) along with the sliding plate (73).

5. The linking machine according to claim 4, wherein: the chain wheel mechanism (4) consists of a chain (41), a chain wheel (42) and a chain wheel fixing seat (43); sprocket (42) install on sprocket fixing base (43) through sprocket shaft (44) rotatoryly, sprocket fixing base (43) fixed mounting on slide (73) of sliding guide mechanism (7), the sprocket mesh with the chain mutually, the one end hoist and mount of chain (41) fix on top board (6), the other end of this chain (41) is done 360 degrees through sprocket (42) and is traded the back and be connected with footstock (12) are fixed.

6. The linking machine of claim 5, wherein: an oil cylinder mounting hole (73a) for mounting the clamping oil cylinder (3) is formed in the sliding plate (73), a horizontal guide hole (73b) is formed in the sliding plate (73) and located below the oil cylinder mounting hole (73a), a wear-resistant copper horizontal sliding sleeve (91) is mounted in the horizontal guide hole (73b), and a horizontal guide rod (9) for improving the horizontal pressing stability of the clamping oil cylinder (3) is slidably sleeved in the horizontal sliding sleeve (91); the front end of the horizontal guide rod (9) and the front end of a piston rod (31) of the clamping oil cylinder (3) exerting pressure in the horizontal direction are connected with a linkage plate (D) through a connecting flange (F); and the roller group (5) arranged on the clamping oil cylinder (3) on the left side and the roller group (5) arranged on the clamping oil cylinder (3) on the right side are both fixedly arranged on the linkage plate (D).

7. The linking machine according to claim 6, wherein: the roller group (5) consists of a roller seat (51), a roller (52), a roller shaft (53), a roller bearing (54) and a baffle plate (55); the roller seat (51) is used for being fixed on the linkage plate (D) or the top surface of the supporting seat (2) or the bottom surface of the upper pressing plate (6); the roller (52) is provided with an axial through hole, the roller bearing (54) is positioned and installed at two ends of the axial through hole of the roller (52), the roller shaft (53) penetrates through the axial through hole of the roller (52), the roller shaft (53) is rotatably sleeved and matched with the roller bearing (54), and the baffle (55) is clamped in a clamping groove of the roller shaft (53).

8. The linking machine of claim 7, wherein: when a piston rod (31) of the clamping oil cylinder (3) at the top drives the upper pressure plate (6) to move upwards, the upper pressure plate (6) pulls the sliding plate (73) through the chain (41) to drive the clamping oil cylinder (3) at the left side and the clamping oil cylinder (3) at the right side to move upwards synchronously along the guide rail (71); when a piston rod (31) of the clamping oil cylinder (3) at the top pushes the upper pressure plate (6) to move downwards, the clamping oil cylinder (3) at the left side and the clamping oil cylinder (3) at the right side synchronously move downwards along the guide rail (71) under the action of gravity.