Clamp for cold drawn pipe machining

Abstract

The utility model relates to the technical field of cold-drawn pipe machining, in particular to a clamp for cold-drawn pipe machining. According to the technical scheme, the clamp mainly aims at solving the problems that according to a common cold-drawn pipe machining clamp, a cold-drawn pipe is usually fixed in the clamp, due to the fact that the cold-drawn pipe cannot move under clamping of the clamp, the clamp is affected by a cutter in the cutting process, the slipping risk exists, and cutting machining is affected. A driving assembly is arranged on the inner wall of the bottom of the support and comprises a U-shaped support, first rotating rollers are symmetrically installed in the U-shaped support, and a motor is arranged on the outer wall of one side of the U-shaped support. Round cold-drawn pipes with different diameters are clamped and positioned, meanwhile, the circular cold-drawn pipes are conveniently driven to rotate, the cutting effect and the cutting stability are improved, the pressure applying force on the cold-drawn pipes during positioning is detected, and pipeline deformation caused by the large pressure applying force is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-drawn tube processing, in particular to a clamp used for cold-drawn tube processing. Background Art

[0002] Cold-drawn tubes are a type of pipe fitting with a wide range of applications. Currently, there are many processing methods available. Before leaving the factory, cold-drawn tubes are processed according to their intended use. Cutting is a crucial step in the production of cold-drawn tubes. The cold-drawn tubes are placed on a fixture and fixed, while the cutting equipment completes the cutting process. This process allows the tubes to be sized to best suit the installation or assembly environment.

[0003] However, common cold-drawn tube processing fixtures usually fix the cold-drawn tube in the fixture. Since the cold-drawn tube cannot move under the clamping of the fixture, the fixture is affected by the cutter during the cutting process, there is a risk of slipping, which affects the cutting process. In view of this, we propose a fixture for cold-drawn tube processing. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the background technology and to provide a clamp for cold-drawn tube processing.

[0005] The technical solution of the present utility model is as follows: a clamp for cold-drawn tube processing, comprising a bracket, a driving assembly is installed on the bottom inner wall of the bracket, the driving assembly comprises a U-shaped bracket, a first roller is symmetrically installed in the U-shaped bracket, a motor is installed on one side outer wall of the U-shaped bracket, and a downward pressure assembly is also installed on the bracket, the downward pressure assembly comprises a cylinder, the output end of the cylinder is connected to an auxiliary bracket, a second roller is symmetrically arranged in the auxiliary bracket, a detection assembly is installed on the outer side wall of the bracket, the detection assembly comprises a pressure-resistant box, a piston plate is provided in the pressure-resistant box, a piston rod is connected to the top wall of the piston plate, and a pressure gauge is installed on the front-facing wall of the pressure-resistant box.

[0006] Preferably, first rotating holes are symmetrically opened on both side walls of the U-shaped bracket, a plurality of first rotating holes are each provided with a first bearing, and the plurality of first bearings are respectively sleeved on the protruding shaft of the first rotating roller.

[0007] Preferably, a motor seat is installed on one side wall of the U-shaped bracket, the motor is installed on the top of the motor seat, and a protruding shaft end of the first roller is connected to the output end of the motor.

[0008] Preferably, second rotating holes are symmetrically opened on both side walls of the cylinder, a plurality of second rotating holes are each provided with a second bearing, and a plurality of second bearings are respectively sleeved on the protruding shafts of the second rotating roller.

[0009] Preferably, the auxiliary bracket is symmetrically welded with limiting sliders on the front wall and the back wall, and the two side walls of the bracket are respectively provided with limiting grooves and limiting slides, and the two limiting sliders are respectively arranged in the limiting grooves and limiting slides.

[0010] Preferably, a protruding structure on the limiting slider passes through the limiting slideway, and a bottom of the protruding structure on the limiting slider is connected to the top end of the piston rod.

[0011] Preferably, a controller is installed on the front-facing wall of the pressure-resistant box, a first air valve is connected to the top opening of the pressure-resistant box, and a second air valve is connected to the side wall opening of the pressure-resistant box.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] The utility model uses the push of the cylinder to enable the auxiliary bracket to drive the two second rollers to cooperate with the first roller symmetrically installed on the U-shaped bracket to clamp cold-drawn tubes of different diameters, thereby expanding the scope of application of this clamp, and under the drive of the motor, it is convenient to drive one first roller to rotate. Due to the rotatable arrangement of the second roller and the first roller, the first roller can drive the cold-drawn tube in the clamped state to rotate in the opposite direction of the cutting tool, thereby achieving positioning while improving the cutting effect, reducing the risk of slipping when cutting after the cold-drawn tube is positioned, and improving the stability during cutting. At the same time, due to the lifting and lowering adjustment of the second roller, the pressure during downward pressure can be detected in cooperation with the pressure-resistant box, the piston plate, the piston rod and the pressure gauge, which is beneficial to prevent the clamping pressure from being too strong and reduce the risk of deformation of the cold-drawn tube during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a fixture used for cold-drawn tube processing;

[0015] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle drive assembly;

[0016] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle and lower pressure components;

[0017] Figure 4 yes Figure 1 Schematic diagram of partial structural cross-section of the detection component.

[0018] Figure numerals: 1. Bracket; 2. Driving assembly; 21. U-shaped bracket; 22. First roller; 23. Motor base; 24. Motor; 3. Pressing assembly; 31. Cylinder; 32. Auxiliary bracket; 33. Second roller; 34. Limiting slider; 4. Detection assembly; 41. Pressure-resistant box; 42. Piston plate; 43. Piston rod; 44. First air valve; 45. Second air valve; 5. Pressure gauge; 6. Controller. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] like Figures 1 to 4 As shown, the present invention proposes a fixture for cold-drawn tube processing, including a bracket 1, a driving assembly 2 is installed on the bottom inner wall of the bracket 1, the driving assembly 2 includes a U-shaped bracket 21, a first roller 22, a motor seat 23 and a motor 24, the bottom wall of the U-shaped bracket 21 is fixedly connected to the bottom inner wall of the bracket 1, and two first rollers 22 are symmetrically installed in the U-shaped bracket 21 for supporting the cold plate tube; the protruding ends of the two first rollers 22 are respectively inserted into the first rotating holes symmetrically opened on the two side walls of the U-shaped bracket 21 The outer surfaces of the protruding ends of the two first rollers 22 are also connected to the inner ring surface of the first bearing arranged in the first rotating hole, and the first rollers 22 are assisted by the first bearing to rotate on the U-shaped bracket 21; the motor seat 23 is fixedly mounted on the outer wall of the U-shaped bracket 21, and the motor 24 is mounted on the top of the motor seat 23. The motor seat 23 is used to support the motor 24. At the same time, the output end of the motor 24 is also connected to the protruding shaft end of a first roller 22, which is convenient for driving a first roller 22 to rotate, so as to facilitate the subsequent rotation of the cold-drawn tube.

[0022] Furthermore, the bracket 1 is also provided with a pressing assembly 3, which includes a cylinder 31, an auxiliary bracket 32, a second roller 33 and a limiting slider 34. The cylinder 31 is fixedly mounted on the top wall of the bracket 1, and a sliding hole is provided on the top wall of the bracket 1. The output end of the cylinder 31 passes through the sliding hole and is fixedly connected to the top wall of the auxiliary bracket 32 ​​provided in the bracket 1, so as to facilitate the height adjustment of the auxiliary bracket 32; the two second rollers 33 are symmetrically arranged in the auxiliary bracket 32, and the protruding shafts of the two second rollers 33 are respectively inserted into the second rotating holes symmetrically provided on the two side walls of the auxiliary bracket 32, and the outer ring surface of the protruding shaft is also aligned with the second rotating hole. The inner ring surface of the second bearing arranged in the hole is connected, and the second bearing is used to limit the second roller 33 on the auxiliary bracket 32, and the second roller 33 is fixed to rotate on the auxiliary bracket 32; two limit sliders 34 are symmetrically welded on the two side walls of the auxiliary bracket 32, one limit slider 34 is set in the limit slide opened on the inner wall of one side of the bracket 1, and the protruding structure of one limit slider 34 passes through the limit slide, and the other limit slider 34 is set in the limit slide opened on the inner wall of the other side of the bracket 1. The limit slide and the limit slide are used to limit the two limit sliders 34, which is beneficial to the stability of the auxiliary bracket 32 ​​when the cylinder 31 drives it to rise and fall.

[0023] Furthermore, a detection assembly 4 is installed on the outer wall of the bracket 1. The detection assembly 4 includes a pressure-resistant box 41, a piston plate 42, a piston rod 43, a first air valve 44 and a second air valve 45. The pressure-resistant box 41 is fixedly installed on the outer wall of the bracket 1, and the piston plate 42 is arranged in the pressure-resistant box 41. A movable hole is opened on the top wall of the pressure-resistant box 41. The bottom end of the piston rod 43 passes through the movable hole and is fixedly connected to the top wall of the piston plate 42, which is convenient for driving the piston plate 42 to move. At the same time, the top of the piston rod 43 is also connected to a limit slider. The bottom wall of the protruding structure 34 is fixedly connected, which is conducive to driving the piston plate 42 to move during the lifting and lowering of the auxiliary bracket 32; the first air valve 44 is fixedly installed at the top opening of the pressure-resistant box 41, and the second air valve 45 is fixedly installed at the opening of the side wall of the pressure-resistant box 41, which is convenient for assisting the pressure-resistant box 41 to intake or exhaust air; the controller 6 is fixedly installed on the front-facing wall of the pressure-resistant box 41, which is convenient for user operation, and the pressure gauge 5 is also fixedly installed on the front-facing wall of the pressure-resistant box 41, which is conducive to detecting the pressure inside the pressure-resistant box 41.

[0024] In this embodiment, the auxiliary bracket 32 ​​is pushed down by starting the cylinder 31 to drive the second roller 33 to descend, so that the second roller 33 cooperates with the first roller 22 to clamp the cold-drawn tube. Moreover, due to the gap between the two second rollers 33 and the two first rollers 22, it is convenient to clamp and position cold-drawn tubes of different diameters under the lifting and lowering of the cylinder 31, thereby improving the applicability of this clamp. At the same time, during the positioning process, the motor 24 can be started to drive a first roller 22 to rotate, so that the cold-drawn tube in the clamped state can rotate under the rotation of a first roller 22. When the cold-drawn tube is cut, the cold-drawn tube and the cutter can be driven to rotate in the opposite direction, so that the cold-drawn tube is cut under the action of the reverse rotation. It is beneficial to improve the stability during the cold-drawn tube cutting process, reduce the risk of the pipe slipping during cutting, and improve the cutting effect. When the limiting slider 34 assists the auxiliary bracket 32 ​​to descend, it can drive the piston rod 43 to push the piston plate 42 down and apply pressure to the space below the piston plate 42. At the same time, the pressure gauge 5 is used to detect the pressure in the pressure-resistant box 41, which is beneficial to detect the pressure degree of the cold-drawn tube in the clamped state. Then, through the control of the controller 6, the pressure reaches the appropriate value and the downward pressure is stopped to prevent the cold-drawn tube from being deformed during the clamping process. Under the setting of the second air valve 45 and the first air valve 44, the pressure in the pressure-resistant box 41 can be adjusted according to the usage, which provides convenience for subsequent clamping and positioning work.

[0025] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A fixture for cold-drawn tube processing, comprising a bracket (1), characterized in that: A driving assembly (2) is mounted on the bottom inner wall of the bracket (1), the driving assembly (2) comprising a U-shaped bracket (21), a first roller (22) being symmetrically mounted in the U-shaped bracket (21), a motor (24) being mounted on one side outer wall of the U-shaped bracket (21), a pressing assembly (3) being further mounted on the bracket (1), the pressing assembly (3) comprising a cylinder (31), an output end of the cylinder (31) being connected to an auxiliary bracket (32), a second roller (33) being symmetrically mounted in the auxiliary bracket (32), a detection assembly (4) being mounted on the outer side wall of the bracket (1), the detection assembly (4) comprising a pressure-resistant box (41), a piston plate (42) being mounted in the pressure-resistant box (41), a piston rod (43) being connected to the top wall of the piston plate (42), and a pressure gauge (5) being mounted on the front-facing wall of the pressure-resistant box (41).

2. A fixture for cold-drawn tube processing according to claim 1, characterized in that: First rotating holes are symmetrically provided on both side walls of the U-shaped bracket (21), and first bearings are arranged in each of the plurality of first rotating holes. The plurality of first bearings are respectively sleeved on the protruding shafts of the first rotating roller (22).

3. The fixture for cold-drawn tube processing according to claim 1, characterized in that: A motor seat (23) is installed on one side wall of the U-shaped bracket (21), the motor (24) is installed on the top of the motor seat (23), and a protruding shaft end of the first rotating roller (22) is connected to the output end of the motor (24).

4. The fixture for cold-drawn tube processing according to claim 1, characterized in that: Second rotating holes are symmetrically opened on both side walls of the cylinder (31), and a plurality of second rotating holes are each provided with a second bearing, and the plurality of second bearings are respectively sleeved on the protruding shafts of the second rotating roller (33).

5. The fixture for cold-drawn tube processing according to claim 1, characterized in that: The auxiliary bracket (32) has limit sliders (34) symmetrically welded on the front wall and the back wall, and the two side walls of the bracket (1) are respectively provided with limit slots and limit slides, and the two limit sliders (34) are respectively arranged in the limit slots and the limit slides.

6. The fixture for cold-drawn tube processing according to claim 5, characterized in that: A protruding structure on the limiting slide block (34) passes through the limiting slideway, and a bottom of the protruding structure on the limiting slide block (34) is connected to the top end of the piston rod (43).

7. The fixture for cold-drawn tube processing according to claim 1, characterized in that: A controller (6) is installed on the front wall of the pressure-resistant box (41), a first air valve (44) is connected to the top opening of the pressure-resistant box (41), and a second air valve (45) is connected to the side wall opening of the pressure-resistant box (41).

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