Clamping device for stainless steel pipe production

Abstract

The utility model provides a clamping device for stainless steel pipe production, and aims to solve the problems that vibration can be generated when the end of a steel pipe is welded or cut, the clamping force of the clamping device is weakened due to continuous vibration, so that the steel pipe moves or rotates in the machining process, the quality of a welded joint is reduced, or the cutting edge is irregular. According to the scheme, the device comprises a main plate and two ring bodies, a plurality of internally-arranged grooves are formed in the inner walls of the ring bodies, trapezoidal plates are slidably installed in the internally-arranged grooves, and bent plates are fixedly installed on one sides of the trapezoidal plates. A plurality of bent plates are driven to clamp a steel pipe, and the angles of the bent plates in the two ring bodies are different, so that the steel pipe can be clamped on two cross sections at different angles, more uniform support is provided on the length of the whole steel pipe, possible bending or distortion caused by clamping of a single cross section is reduced, and the clamping efficiency of the steel pipe is improved. And the steel pipe is effectively prevented from rotating and is kept at a fixed position.

Description

TECHNICAL FIELD

[0001] The utility model relates to stainless steel pipe production equipment field especially stainless steel pipe production clamping device. BACKGROUND

[0002] The stainless steel pipe clamping device is a mechanical equipment for fixing and keeping the position of the stainless steel pipe, so as to carry out various processing operations, such as welding, cutting, polishing, etc., most of the existing clamping devices are rigid clamping, which means that they directly contact the workpiece through hard material and exert enough force to fix the workpiece. The existing clamping device has two clamping modes for the stainless steel pipe, two ends are clamped to polish the side surface, and the side surface is clamped to cut or weld the two ends.

[0003] Vibration will occur when welding or cutting at the end of the steel pipe, and the continuous vibration will weaken the clamping force of the existing clamping device, causing the steel pipe to move or rotate during the processing, which reduces the quality of the welded joint or the cutting edge is not neat, therefore we propose a stainless steel pipe production clamping device to solve this problem. SUMMARY

[0004] The utility model discloses a stainless steel pipe production clamping device is provided to solve the problem in the background art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A stainless steel pipe production clamping device, including mainboard and two ring body, the inner wall of ring body is equipped with a plurality of inner set groove, the inner set groove is equipped with trapezoidal plate that slides, one side of trapezoidal plate is equipped with bent plate fixedly, the outside of ring body is equipped with the sleeve of sleeve body that slides, the outside of ring body is equipped with a plurality of telescopic link fixedly, the output of telescopic link is connected with the one side of corresponding sleeve body fixedly, the inner wall of sleeve body is equipped with wedge-shaped push plate fixedly, the inclined plane of wedge-shaped push plate is connected with the inclined plane of corresponding trapezoidal plate slidingly, the inner wall of ring body is equipped with annular air bag fixedly, the outside of ring body is equipped with air pump machine fixedly, air pump machine is linked with corresponding annular air bag.

[0007] Preferably, the inner wall of the inner set groove is provided with an external hole, and the wedge-shaped push plate extends into the ring body through the corresponding external hole.

[0008] Preferably, the inner wall of the inner set groove is provided with a vertical slot, and the one side of the trapezoidal plate is fixedly provided with a limiting plate, and the limiting plate and the inner wall of the corresponding vertical slot are fixedly provided with the same reset spring.

[0009] Preferably, a plurality of weakening grooves are formed in the sidewall of the annular air bag, and the side of the bending plate is fixedly provided with a rubber pad.

[0010] Preferably, a double-shaft motor is fixedly arranged at the top center of the main plate, two output shafts of the double-shaft motor are fixedly provided with lead screws, the thread pitches of the two lead screws are same and the thread rotation directions are opposite, the outside of the lead screws is threadedly provided with a moving plate, and the moving plate is fixedly connected with a corresponding ring body.

[0011] Preferably, two fixing grooves are formed in the top of the main plate, and the moving plate is slidingly arranged in the corresponding fixing groove.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The plurality of bending plates in the two ring bodies are different in angle, that is, the steel pipe can be clamped at different angles on two cross sections, providing more uniform support on the length of the steel pipe, reducing the bending or twisting that may be caused by single cross section clamping, effectively preventing the steel pipe from rotating, and ensuring that the steel pipe remains in a fixed position.

[0014] 2. The air pump inflates the two annular air bags, the annular air bags clamp and cover the steel pipe, provide additional support for the steel pipe, improve the stability of the steel pipe clamping, prevent the vibration at the end of the steel pipe from being transmitted to the bending plate clamping position, ensure the clamping force of the bending plate, and increase the air bag clamping on the basis of the conventional clamping device, combining the advantages of both. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a first perspective view of the three-dimensional structure schematic diagram of the clamping device for stainless steel pipe production.

[0016] Figure 2 It is a second perspective view of the three-dimensional structure schematic diagram of the clamping device for stainless steel pipe production.

[0017] Figure 3 It is a cross-sectional structure schematic diagram of the ring body of the clamping device for stainless steel pipe production.

[0018] Figure 4 It is Figure 3 A partial enlarged view of the middle A part.

[0019] The reference signs are as follows:

[0020] In the figure: 1, main plate; 2, ring body; 3, inner groove; 4, trapezoidal plate; 5, bent plate; 6, sleeve body; 7, telescopic rod; 8, wedge-shaped push plate; 9, annular air bag; 10, air pump machine; 11, external hole; 12, vertical groove; 13, limiting plate; 14, reset spring; 15, rubber pad; 16, double-shaft motor; 17, screw rod; 18, moving plate; 19, fixed groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Referring to Figures 1-4 A clamping device for stainless steel pipe production, comprising a main plate 1 and two ring bodies 2, a plurality of inner grooves 3 are formed in the inner wall of the ring body 2, a trapezoidal plate 4 is slidably installed in the inner groove 3, a bent plate 5 is fixedly installed on one side of the trapezoidal plate 4, a sleeve body 6 is slidably sleeved on the outer side of the ring body 2, a plurality of telescopic rods 7 are fixedly installed on the outer side of the ring body 2, the output end of the telescopic rod 7 is fixedly connected with one side of the corresponding sleeve body 6, a wedge-shaped push plate 8 is fixedly installed on the inner wall of the sleeve body 6, the inclined surface of the wedge-shaped push plate 8 is slidably connected with the inclined surface of the corresponding trapezoidal plate 4, an annular air bag 9 is fixedly installed on the inner wall of the ring body 2, an air pump machine 10 is fixedly installed on the outer side of the ring body 2, and the air pump machine 10 is communicated with the corresponding annular air bag 9.

[0023] It should be noted that the air pump machine 10 can be an air compressor or an air compressor, which can suck and compress the air in the atmosphere to a high pressure, so as to provide the required gas for the annular air bag 9; the steel pipe can be clamped by the annular air bag 9, which can provide additional support around the steel pipe, reduce vibration and slight displacement, and further improve stability.

[0024] As shown in Figure 3 and Figure 4 , an external hole 11 is formed in one side of the inner wall of the inner groove 3, and the wedge-shaped push plate 8 extends into the ring body 2 through the corresponding external hole 11.

[0025] A vertical groove 12 is formed in one side of the inner wall of the inner groove 3, a limiting plate 13 is fixedly installed on one side of the trapezoidal plate 4, and the same reset spring 14 is fixedly installed between the limiting plate 13 and one side of the inner wall of the corresponding vertical groove 12. The inclined surface of the wedge-shaped push plate 8 is extruded with the inclined surface of the trapezoidal plate 4, so as to drive the trapezoidal plate 4 to move linearly, realize the clamping function of the steel pipe, and the cooperation of the limiting plate 13 and the reset spring 14 plays a role in guiding the movement and resetting of the trapezoidal plate 4.

[0026] As shown in Figure 1 and Figure 2As shown, the side wall of the annular air bag 9 is provided with a plurality of weakening grooves, and one side of the bending plate 5 is fixedly provided with a rubber pad 15, and the weakening grooves and the rubber pad 15 are used to buffer pressure and increase friction, improve the stability of clamping the steel pipe, and protect the steel pipe.

[0027] It is additionally explained that the angles of the plurality of bending plates 5 in the two rings 2 are different, that is, the steel pipe can be clamped at different angles on two cross sections, and by setting the clamping points on different cross sections, more uniform support can be provided on the entire length of the steel pipe, and the bending or twisting caused by clamping on a single cross section can be reduced, if the clamping points are only located on one cross section, the steel pipe can rotate around its axis, and by setting the clamping points at different angles and different cross sections, the rotation can be effectively prevented, and the steel pipe can be kept in a fixed position.

[0028] As shown in Figure 1 and Figure 2 The top center of the main plate 1 is fixedly provided with a double-shaft motor 16, two output shafts of the double-shaft motor 16 are fixedly provided with lead screws 17, the thread pitches of the two lead screws 17 are the same, and the thread rotation directions are opposite, the outer side of the lead screw 17 is threadedly provided with a moving plate 18, and the moving plate 18 is fixedly connected with the corresponding ring 2.

[0029] The top of the main plate 1 is provided with two fixed grooves 19, and the moving plate 18 is slidingly installed in the corresponding fixed groove 19.

[0030] The working principle of the utility model is as follows: through the cooperation of the double-shaft motor 16 and the two lead screws 17, the two moving plates 18 are driven to move close to each other or away from each other, so as to adjust the distance between the two rings 2, so as to adapt to steel pipes of different lengths, the steel pipe is inserted through the two rings 2, the plurality of telescopic rods 7 are started, the telescopic rod 7 drives the sleeve body 6 to move to one side, so as to drive the wedge-shaped push plate 8 to move along the inclined surface of the trapezoidal plate 4, so as to extrude the trapezoidal plate 4 to move to the side close to the steel pipe, and then drive the plurality of bending plates 5 to clamp the steel pipe, and then start the air pump 10 to inflate the two annular air bags 9, so as to provide additional support to the steel pipe, reduce vibration and slight displacement, and further improve the stability of clamping.

[0031] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A clamping device for stainless steel pipe production, characterized in that, Including the mainboard (1) and two rings (2), the inner wall of the ring (2) is provided with a plurality of inner grooves (3), the trapezoidal plate (4) is slidably installed in the inner groove (3), one side of the trapezoidal plate (4) is fixedly installed with the bent plate (5), the outer side of the ring (2) is slidably sleeved with the sleeve body (6), a plurality of telescopic rods (7) are fixedly installed on the outer side of the ring (2), the output end of the telescopic rod (7) is fixedly connected with one side of the corresponding sleeve body (6), the inner wall of the sleeve body (6) is fixedly installed with the wedge-shaped push plate (8), the inclined surface of the wedge-shaped push plate (8) is slidably connected with the inclined surface of the corresponding trapezoidal plate (4), the inner wall of the ring (2) is fixedly installed with the annular air bag (9), the outer side of the ring (2) is fixedly installed with the air pump machine (10), the air pump machine (10) is communicated with the corresponding annular air bag (9).

2. The clamping device for stainless steel pipe production according to claim 1, characterized in that, The outer connecting hole (11) is formed in one side of the inner wall of the inner groove (3), and the wedge-shaped push plate (8) extends into the ring (2) through the corresponding outer connecting hole (11).

3. The clamping device for stainless steel pipe production according to claim 1, characterized in that, The vertical groove (12) is formed in one side of the inner wall of the inner groove (3), the limiting plate (13) is fixedly installed on one side of the trapezoidal plate (4), and the same reset spring (14) is fixedly installed between the limiting plate (13) and one side of the vertical groove (12).

4. The clamping device for stainless steel pipe production according to claim 1, characterized in that, A plurality of weakening grooves are formed in the side wall of the annular air bag (9), and the rubber pad (15) is fixedly installed on one side of the bent plate (5).

5. The clamping device for stainless steel pipe production according to claim 1, characterized in that, The double-shaft motor (16) is fixedly installed at the top center of the mainboard (1), the two output shafts of the double-shaft motor (16) are fixedly installed with the lead screws (17), the thread pitches of the two lead screws (17) are the same, and the thread rotation directions are opposite, the outer side of the lead screw (17) is threadedly installed with the moving plate (18), and the moving plate (18) is fixedly connected with the corresponding ring (2).

6. The clamping device for stainless steel pipe production according to claim 5, characterized in that, The top of the mainboard (1) is provided with two fixed grooves (19), and the moving plate (18) is slidably installed in the corresponding fixed groove (19).

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