Self-centering clamp for stainless steel pipe production

Abstract

The utility model relates to the technical field of stainless steel pipe machining, in particular to a self-centering clamp for stainless steel pipe production. The clamping assembly comprises a mounting plate, a fixing plate A, a fixing plate B, a sliding plate A, a sliding plate B, an air cylinder A, an air cylinder B and elastic pads, wherein the fixing plate A and the fixing plate B are fixedly arranged on the front side of the mounting plate; the sliding plate A and the sliding plate B are slidably arranged on the fixing plate A and the fixing plate B respectively; the air cylinder A and the air cylinder B are fixedly mounted on the sliding plate A and the sliding plate B respectively; and the pushing assembly is arranged on the mounting plate, and the sliding plate A and the sliding plate B are both connected with the pushing assembly. The clamp has the advantages of self-centering and self-clamping, and solves the problems that an existing clamp for clamping the stainless steel pipe generally only has the clamping function and does not have the centering function, manual centering and clamping of workers are needed in the clamping process, a large amount of time is spent on clamping, and machining efficiency is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipe processing, in particular to a self-centering clamp for stainless steel pipe production. Background Art

[0002] Stainless steel pipe is a hollow long round steel, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural parts. In addition, when the bending and torsional strengths are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used in furniture and kitchen utensils.

[0003] During the production process, stainless steel pipes often need to be processed by threading, drilling, grooving, etc., and the stainless steel pipes need to be clamped during processing. The existing clamps for clamping stainless steel pipes usually only have a clamping function, but not a centering function. During clamping, workers need to manually center and clamp, which will result in a lot of time spent on clamping, which will affect the processing efficiency. Utility Model Content

[0004] The utility model aims to provide a self-centering clamp for producing stainless steel pipes to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-centering clamp for stainless steel pipe production, including a clamping assembly, characterized in that: the clamping assembly includes a mounting plate, a fixed plate A and a fixed plate B fixedly arranged on the front side of the mounting plate, a sliding plate A and a sliding plate B slidably arranged on the fixed plate A and the fixed plate B respectively, a cylinder A and a cylinder B fixedly arranged on the sliding plate A and the sliding plate B respectively, an elastic pad fixedly arranged on the push plate of the cylinder A and the cylinder B, and a pushing assembly arranged on the mounting plate, the fixed plate A is located on the left side of the fixed plate B, the sliding plate A and the sliding plate B are both connected to the pushing assembly, a pipe through hole is opened on the mounting plate between the fixed plate A and the fixed plate B, a V-shaped groove is opened on the side wall of the sliding plate A and the sliding plate B facing each other, and the push plates of the cylinder A and the cylinder B are both arranged facing the V-shaped groove.

[0006] Preferably, the sliding plate A is fixedly provided with protrusions A on both the upper and lower sides, and the sliding plate B is fixedly provided with protrusions B on both the upper and lower sides. The pushing assembly includes a disc rotatably arranged on the mounting plate, a movable column fixedly arranged on the right side of the protrusion A, a spring sleeved on the movable column, and a pushing bar fixedly arranged on the right side of the movable column. A movable hole is opened on the protrusion B, and the movable column is inserted into the movable hole and is slidably connected to the protrusion B. Both ends of the spring are fixedly connected to the protrusion A and the protrusion B respectively. The disc is in contact with the right side wall of the sliding plate B and the left side wall of the pushing bar, and protrusions are fixedly provided on the upper and lower sides of the disc.

[0007] Preferably, dovetail blocks are fixedly provided on the rear sides of the sliding plate A and the sliding plate B, and dovetail grooves matching the dovetail blocks are opened on the fixed plate A and the fixed plate B. The dovetail blocks are inserted into the dovetail grooves and are slidably connected with the fixed plate A and the fixed plate B.

[0008] Preferably, the pushing assembly further comprises a motor fixedly mounted on the mounting plate, a rotating shaft rotatably mounted on the mounting plate, the disc is fixedly connected and concentric with the rotating shaft, and the motor output shaft is fixedly connected to the rotating shaft.

[0009] Preferably, the elastic pad is provided with a plurality of anti-slip grooves.

[0010] Preferably, an elastic sheet is fixedly provided on the side wall of the V-shaped groove.

[0011] Preferably, the elastic pad and the elastic sheet are both made of elastic rubber.

[0012] The beneficial effect of the utility model is that when the stainless steel pipe needs to be clamped for convenient processing, the stainless steel pipe is first inserted into the pipe hole, and the motor is started to drive the disc to rotate 90° clockwise, so that the convex disc is in contact with the right side wall of the sliding plate B and the left side wall of the pushing strip, and the sliding plate A is pushed to move right and the sliding plate B is pushed to move left. Since the sliding plates A and B are provided with V-shaped grooves on the side walls facing each other, the sliding plates A and B will clamp the stainless steel pipe so that it is located in the V-shaped groove, which plays a role of pre-fixation and self-centering. The cylinder A and the cylinder B are started to push out the push plates of the two. Since the push plates of the cylinder A and the cylinder B are both arranged toward the V-shaped groove, elastic pads are fixedly installed on the push plates of the cylinder A and the cylinder B, and the stainless steel pipe will be clamped by the push plates of the cylinder A and the cylinder B, and fall into the elastic pad and the fixed connection with the elastic pad. Then, the utility model is in a clamping state at this time, playing the role of clamping the stainless steel pipe; when the stainless steel pipe needs to be taken out after processing, start cylinder A and cylinder B to pull back the push plates of the two to separate the stainless steel pipe from the elastic pad, start the motor to drive the disc to rotate 90° counterclockwise, so that the disc is in contact with the right side wall of the sliding plate B and the left side wall of the push bar, so that the sliding plate A moves to the left and the sliding plate B moves to the right, loosens the stainless steel pipe, and then takes the stainless steel pipe out of the pipe hole; in summary, the utility model has the beneficial effects of self-centering and self-clamping, which solves the problem that the existing clamps for clamping stainless steel pipes usually only have a clamping function but not a centering function, and workers need to manually center and clamp during clamping, resulting in a lot of time spent on clamping, which affects the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a front view of the utility model;

[0014] Attached Figure 2This is a front view of the clamping state of the utility model;

[0015] Attached Figure 3 It is a schematic diagram of the structure of the utility model;

[0016] Attached Figure 4 This is a schematic diagram of the structure of the clamping state of the utility model;

[0017] Attached Figure 5 It is a side structural schematic diagram of the utility model.

[0018] In the figure: mounting plate 1, fixed plate A2, fixed plate B3, sliding plate A4, sliding plate B5, cylinder A6, cylinder B7, elastic pad 8, pipe hole 9, V-shaped groove 10, protrusion A11, protrusion B12, disc 13, movable column 14, spring 15, push bar 16, movable hole 17, protrusion 18, dovetail block 19, dovetail groove 20, motor 21, rotating shaft 22, anti-slip pattern 23, elastic sheet 24. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] like Figure 1-5As shown, the utility model discloses a self-centering clamp for stainless steel pipe production, including a clamping assembly, the clamping assembly includes a mounting plate 1, a fixed plate A2 and a fixed plate B3 fixedly arranged on the front side of the mounting plate 1, a sliding plate A4 and a sliding plate B5 slidably arranged on the fixed plate A2 and the fixed plate B3 respectively, a cylinder A6 and a cylinder B7 fixedly installed on the sliding plate A4 and the sliding plate B5 respectively, an elastic pad 8 fixedly installed on the push plates of the cylinder A6 and the cylinder B7, and a pushing assembly arranged on the mounting plate 1, the fixed plate A2 is located on the left side of the fixed plate B3, the sliding plate A4 and the sliding plate B5 are both connected to the pushing assembly, a pipe through hole 9 located between the fixed plate A2 and the fixed plate B3 is opened on the mounting plate 1, a V-shaped groove 10 is opened on the side wall of the sliding plate A4 and the sliding plate B5 facing each other, and the push plates of the cylinder A6 and the cylinder B7 are both arranged toward the V-shaped groove 10. When the stainless steel pipe needs to be clamped for convenient processing, first insert the stainless steel pipe into the pipe hole 9, start the motor 21 to drive the disc 13 to rotate 90° clockwise, so that the convex disc 18 is in contact with the right side wall of the sliding plate B5 and the left side wall of the pushing strip 16, and the sliding plate A4 is pushed to move to the right and the sliding plate B5 is pushed to the left. Since the sliding plates A4 and B5 are provided with V-shaped grooves 10 on the side walls facing each other, the sliding plates A4 and B5 will clamp the stainless steel pipe so that it is located in the V-shaped groove 10, which plays a role of pre-fixation and self-centering. Start the cylinder A6 and the cylinder B7 to push out the push plates of the two. Since the push plates of the cylinders A6 and B7 are both set toward the V-shaped groove 10, the push plates of the cylinders A6 and B7 are fixedly installed with elastic pads 8, and the stainless steel pipe will be clamped by the push plates of the cylinders A6 and B7, and fall into the elastic pads 8 and the elastic pads 8 are fixed. Fixed connection, at this time, the utility model is in a clamping state, which plays the role of clamping the stainless steel pipe; when the stainless steel pipe needs to be taken out after processing, start cylinder A6 and cylinder B7 to pull back the push plates of the two to separate the stainless steel pipe from the elastic pad 8, start the motor 21 to drive the disc 13 to rotate 90° counterclockwise, so that the disc 13 is in contact with the right side wall of the sliding plate B5 and the left side wall of the push bar 16, so that the sliding plate A4 moves to the left and the sliding plate B5 moves to the right, the stainless steel pipe is loosened, and then the stainless steel pipe can be taken out from the pipe hole 9; in summary, the utility model has the beneficial effects of self-centering and self-clamping, which solves the problem that the existing clamps for clamping stainless steel pipes usually only have a clamping function but do not have a centering function, and workers need to manually center and clamp during clamping, resulting in a lot of time spent on clamping, which affects the processing efficiency.

[0021] Preferably, the sliding plate A4 is fixedly provided with protrusions A11 on both the upper and lower sides, and the sliding plate B5 is fixedly provided with protrusions B12 on both the upper and lower sides. The pushing assembly includes a disc 13 rotatably set on the mounting plate 1, a movable column 14 fixedly set on the right side of the protrusion A11, a spring 15 sleeved on the movable column 14, and a pushing bar 16 fixedly set on the right side of the movable column 14. A movable hole 17 is opened on the protrusion B12, and the movable column 14 is inserted into the movable hole 17 and is slidably connected to the protrusion B12. Both ends of the spring 15 are fixedly connected to the protrusion A11 and the protrusion B12 respectively. The disc 13 is in contact with the right side wall of the sliding plate B5 and the left side wall of the pushing bar 16, and protrusions 18 are fixedly provided on the upper and lower sides of the disc 13. When the motor 21 drives the disc 13 to rotate 90° clockwise, since the disc 13 is fixedly provided with convex plates 18 on both the upper and lower sides, the convex plates 18 will replace the disc 13 after the disc 13 rotates 90° and contact and connect with the right side wall of the sliding plate B5 and the left side wall of the pushing strip 16, and the convex plates 18 push the sliding plate B5 to move left, and the convex plates 18 push the pushing strip 16 to move right, driving the movable column 14 and the sliding plate A4 to move right, clamping the stainless steel pipe in the V-shaped groove 10; since the spring 15 is sleeved on the movable column 14, the two ends of the spring 15 are respectively fixedly connected with the convex blocks A11 and the convex blocks B12, when the stainless steel pipe is clamped in the V-shaped groove 10, the spring 15 will be compressed and deformed, and when the motor 21 drives the disc 13 to rotate 90° counterclockwise, the spring 15 will rebound, and the sliding plate A4 and the sliding plate B5 will be rebounded, so that the disc 13 is contacted and connected with the right side wall of the sliding plate B5 and the left side wall of the pushing strip 16, thereby playing the role of automatic resetting.

[0022] Preferably, the sliding plate A4 and the sliding plate B5 are both fixedly provided with a dovetail block 19 on their rear sides, and the fixed plate A2 and the fixed plate B3 are both provided with a dovetail groove 20 matching the dovetail block 19, and the dovetail block 19 is inserted into the dovetail groove 20 and slidably connected with the fixed plate A2 and the fixed plate B3. Since the dovetail block 19 is inserted into the dovetail groove 20 and slidably connected with the fixed plate A2 and the fixed plate B3, it facilitates the sliding of the sliding plate A4 and the sliding plate B5 and prevents the sliding plate A4 and the sliding plate B5 from falling off.

[0023] Preferably, the pushing assembly further comprises a motor 21 fixedly mounted on the mounting plate 1, a rotating shaft 22 rotatably mounted on the mounting plate 1, the disc 13 is fixedly connected and concentric with the rotating shaft 22, and the output shaft of the motor 21 is fixedly connected with the rotating shaft 22. Since the disc 13 is fixedly connected and concentric with the rotating shaft 22, and the output shaft of the motor 21 is fixedly connected with the rotating shaft 22, it is convenient to drive the disc 13 to rotate.

[0024] Preferably, the elastic pad 8 is provided with a plurality of anti-skid lines 23. Since the elastic pad 8 is provided with a plurality of anti-skid lines 23, the stainless steel pipe is prevented from sliding.

[0025] Preferably, an elastic sheet 24 is fixedly disposed on the side wall of the V-shaped groove 10. Since the elastic sheet 24 is fixedly disposed on the side wall of the V-shaped groove 10, it plays a role in preventing the stainless steel pipe from being pressed out of an indentation.

[0026] Preferably, the elastic pad 8 and the elastic sheet 24 are made of elastic rubber. Since the elastic pad 8 and the elastic sheet 24 are made of elastic rubber, they have the characteristics of good elasticity, wear resistance and fatigue resistance.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-centering fixture for stainless steel pipe production, comprising a clamping assembly, characterized in that: The clamping assembly comprises a mounting plate (1), a fixing plate A (2) and a fixing plate B (3) fixedly arranged on the front side of the mounting plate (1), a sliding plate A (4) and a sliding plate B (5) slidably arranged on the fixing plate A (2) and the fixing plate B (3), respectively, a cylinder A (6) and a cylinder B (7) fixedly arranged on the sliding plate A (4) and the sliding plate B (5), respectively, an elastic pad (8) fixedly arranged on the push plates of the cylinder A (6) and the cylinder B (7), and a spring disposed on the mounting plate (1). The pushing assembly is arranged on the fixing plate A (2), the fixing plate A (2) is located on the left side of the fixing plate B (3), the sliding plate A (4) and the sliding plate B (5) are both connected to the pushing assembly, the mounting plate (1) is provided with a pipe hole (9) located between the fixing plate A (2) and the fixing plate B (3), the sliding plate A (4) and the sliding plate B (5) are both provided with a V-shaped groove (10) on one side wall facing each other, and the pushing plates of the cylinder A (6) and the cylinder B (7) are both arranged facing the V-shaped groove (10).

2. A self-centering fixture for stainless steel pipe production according to claim 1, characterized in that: The sliding plate A (4) is fixedly provided with protrusions A (11) on both upper and lower sides, and the sliding plate B (5) is fixedly provided with protrusions B (12) on both upper and lower sides. The pushing assembly comprises a disc (13) rotatably arranged on the mounting plate (1), a movable column (14) fixedly arranged on the right side of the protrusion A (11), a spring (15) sleeved on the movable column (14), and a pushing strip (16) fixedly arranged on the right side of the movable column (14). The protrusion B (12) is provided with a movable hole (17). The movable column (14) is inserted into the movable hole (17) and is slidably connected to the protrusion B (12). Two ends of the spring (15) are respectively fixedly connected to the protrusion A (11) and the protrusion B (12). The disc (13) is in contact with the right side wall of the sliding plate B (5) and the left side wall of the pushing strip (16). The disc (13) is fixedly provided with protrusions (18) on both upper and lower sides.

3. A self-centering fixture for stainless steel pipe production according to claim 2, characterized in that: The sliding plate A (4) and the sliding plate B (5) are both fixedly provided with dovetail blocks (19) on their rear sides, and the fixed plate A (2) and the fixed plate B (3) are both provided with dovetail grooves (20) matching the dovetail blocks (19), and the dovetail blocks (19) are inserted into the dovetail grooves (20) to be slidably connected with the fixed plate A (2) and the fixed plate B (3).

4. A self-centering fixture for stainless steel pipe production according to claim 3, characterized in that: The pushing assembly further comprises a motor (21) fixedly mounted on the mounting plate (1), and a rotating shaft (22) rotatably mounted on the mounting plate (1); the disc (13) is fixedly connected and concentric with the rotating shaft (22); and the output shaft of the motor (21) is fixedly connected to the rotating shaft (22).

5. A self-centering fixture for stainless steel pipe production according to claim 4, characterized in that: The elastic pad (8) is provided with a plurality of anti-slip grooves (23).

6. A self-centering fixture for stainless steel pipe production according to claim 5, characterized in that: An elastic sheet (24) is fixedly arranged on the side wall of the V-shaped groove (10).

7. A self-centering fixture for stainless steel pipe production according to claim 6, characterized in that: The elastic pad (8) and the elastic sheet (24) are both made of elastic rubber.

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