Outer circle machining clamp for thin-wall pipe fitting

Abstract

The utility model relates to the technical field of pipe fitting clamps, and provides a thin-wall pipe fitting outer circle machining clamp which comprises a clamp frame, first fixing blocks are fixedly connected to the two sides of the interior of the clamp frame, and a first pneumatic telescopic rod is fixedly connected to one side of each first fixing block; the other end of the first pneumatic telescopic rod is fixedly connected with a first fixing plate, a notch is formed in the first fixing plate, one side of the notch is fixedly connected with a conveying belt, and the two sides, located on the lower portion in the clamp frame, of the conveying belt are symmetrically arranged. The clamping height of the pipe fitting can be adjusted by starting an extending conveying belt to adapt to clamping of a pressing block and an anti-skid ball, the clamping position of the pipe fitting can be adjusted by starting an extending second pneumatic telescopic rod, and the clamping position of the pipe fitting can be further adjusted by starting an electric push rod.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting fixture technology, specifically to a fixture for machining the outer diameter of thin-walled pipe fittings. Background Technology

[0002] Steel pipes with an outer diameter to wall thickness ratio greater than 20 are called thin-walled steel pipes. Thin-walled steel pipes are all cold-drawn. Among them, carbon steel, low alloy steel, and alloy steel thin-walled pipes are suitable for general structures and mechanical structural components; thin-walled fluid steel pipes are used to transport general fluids; stainless steel thin-walled pipes are used for heat-resistant containers, conveying pipelines, and mechanical structural components in chemical, petroleum, light industry, food, and machinery instrument industries.

[0003] A search revealed an existing patent (CN 218341506 U) that discloses a fixture for machining the outer diameter of thin-walled pipe fittings. The fixture includes a base, a support unit connected within the base, a support frame connected to the top of the base, an extrusion unit connected to the middle of the support frame, and positioning units connected to both sides of the extrusion unit. Preferably, the support unit includes a bidirectional screw, with movable blocks connected to both ends of the bidirectional screw. The top of each movable block penetrates the base and is connected to a support block. One end of the bidirectional screw penetrates the base and is connected to a rotating disk. The support block is located directly below the extrusion unit. The bidirectional screw has two opposite threads at both ends. Preferably, the extrusion unit includes a movable stage, with a guide rod slidably mounted on the top of the movable stage. The bottom end of the guide rod penetrates the movable stage and is connected to a fixed frame. An extrusion block is rotatably mounted on the top of the movable stage. A wrench is fixedly mounted on one side of the extrusion block, and one side of the extrusion block abuts against the fixed frame. The positioning units are connected to the top of the movable stage. Preferably, the positioning unit includes a kit frame, with a damping rubber sleeve connected to the inner ring of the kit frame. A spring plate is connected to one side of the inner wall of the kit frame, and a pin is slidably mounted on one side of the kit frame. One end of the pin passes through the kit frame and is connected to the spring plate, while the other end is connected to a return spring. The kit frame is slidably connected to the support frame. This invention involves pressing down on the extrusion unit until the fixing frame is pressed above the pipe. The spring plate is engaged in a limiting groove on one side of the support frame, ensuring the position of the moving platform is fixed. Then, by using a wrench to operate the extrusion block, the varying radii of the extrusion block further compress the fixing frame as it rotates, thereby further fixing the pipe. The anti-slip pads at the top of the support block and the bottom of the fixing frame serve both a fixing and protective function. The support block is longer than the fixing frame, providing good support for the pipe fitting and ensuring stability during processing. This invention also uses a rotating disc to rotate a bidirectional screw, which in turn drives the support blocks to move in opposite directions via a moving block, thereby adjusting the distance between the support blocks to accommodate pipe fittings of different sizes. When the pipe fitting position needs to be adjusted after processing a section, the wrench can be directly pulled to release the force of the extrusion block on the fixing frame. The position of the extrusion unit can be adjusted through the positioning unit, making it suitable for processing pipe fittings of various sizes. It is also easy to adjust and control, ensuring processing efficiency.

[0004] However, in the above scheme, with the continuous improvement of current processing efficiency, some efficient processing methods require more frequent adjustments to the position of the pipe fittings. Therefore, adjusting by manually swinging a wrench can easily create a labor burden, and this fixing method is not conducive to rotating the pipe fittings during processing, which can easily limit the processing surface.

[0005] In view of this, the present invention proposes a fixture for machining the outer diameter of thin-walled pipe fittings. Utility Model Content

[0006] This utility model proposes a machining fixture for the outer diameter of thin-walled pipe fittings, which solves the problem in related technologies that with the continuous improvement of current processing efficiency, the adjustment of the pipe fitting position is also more frequent in some high-efficiency processing. Therefore, the method of adjusting by manually swinging a wrench is easy to cause a burden on manpower, and this fixing method is not conducive to the rotation of the pipe fitting, which can easily limit the processing surface.

[0007] The technical solution of this utility model is as follows: A fixture for machining the outer diameter of thin-walled pipe fittings includes a fixture frame: First fixing blocks are fixedly connected to both sides of the fixture frame; a first pneumatic telescopic rod is fixedly connected to one side of each first fixing block; a first fixing plate is fixedly connected to the other end of each first pneumatic telescopic rod; a slot is opened inside the first fixing plate; a conveyor belt is fixedly connected to one side of the slot; the conveyor belt is symmetrically arranged on both sides below the fixture frame; second fixing blocks are fixedly connected to the four corners of the other end of the fixture frame; a second pneumatic telescopic rod is fixedly connected to the side of each second fixing block facing the center of the fixture frame; the extension ends of the four second pneumatic telescopic rods all face the same center point; a second fixing plate is fixedly connected to the extension end of each second pneumatic telescopic rod; an electric push rod is fixedly connected to both sides of the second fixing plate; an L-shaped support rod is fixedly connected to the extension end of each electric push rod; a third fixing plate is fixedly connected to the other end of each L-shaped support rod; a pressure sensor is fixedly connected to the other side of the third fixing plate; and connecting rods are fixedly connected to the four corners of the other side of the third fixing plate. A pressing block is fixedly connected to the other end of the rod, and an anti-slip ball is fixedly connected to the other side of the pressing block. A third pneumatic telescopic rod is fixedly connected to the side of the second fixing plate facing the central axis inside the clamp frame. A U-shaped fixing frame is fixedly connected to the extension end of the third pneumatic telescopic rod. A motor is fixedly connected to one side of the U-shaped fixing frame. A steering transmission roller is provided inside the U-shaped fixing frame. The output end of the motor passes through the U-shaped fixing frame and is fixedly connected to the steering transmission roller. The installation of the conveyor belt enables the placement and transportation of pipe fittings. Activating the extended conveyor belt clamps the pipe fittings. The height can be adjusted to accommodate the clamping of the pressing block and anti-slip ball. Activating the second pneumatic telescopic rod allows for adjustment of the clamping position of the pipe fitting. The clamping position can be further adjusted by activating the electric push rod. After the pressing block and anti-slip ball clamp the pipe fitting, the anti-slip ball provides anti-slip protection. The clamping force is detected by a pressure sensor to prevent excessive clamping force from deforming the clamped pipe. When a turn is required, the extended electric push rod brings the pipe into contact with the steering drive roller, and activating the motor enables the pipe to be turned after clamping, facilitating more comprehensive processing of the pipe.

[0008] Preferably, the number of the first pneumatic telescopic rods is eight, and the eight first pneumatic telescopic rods are respectively distributed at the four corners of the slope position of the first fixed block on both sides. By setting multiple first pneumatic telescopic rods, stable support for the first fixed plate can be achieved.

[0009] Preferably, the clamp frame is provided with inlet and outlet ports on both sides, the first fixing block is located on the inlet side and the second fixing block is located on the outlet side, which enables automated feeding and discharging and saves manpower.

[0010] Preferably, the sensing end of the pressure sensor is in contact with the pressing block. Multiple pressing blocks are provided, and the movement direction of the multiple pressing blocks is all towards the center of the clamp frame. The multi-point pressing blocks can clamp the pipe wall at multiple points, disperse the force, and avoid pipe deformation.

[0011] Preferably, the electric push rod extends perpendicularly to the second pneumatic telescopic rod, and the electric push rod can expand or shrink the area held by the pressing block and the anti-slip ball.

[0012] Preferably, the output end of the motor is inserted into the side plate of the U-shaped fixed frame and rotates. When the third pneumatic telescopic rod is retracted, the extension length of the steering transmission roller is less than that of the L-shaped support rod. By retracting the third pneumatic telescopic rod, interference with the workpiece can be avoided when the pressing block and anti-slip ball clamping parts are being processed.

[0013] Preferably, the clamp frame is located away from the second fixing block, and the first fixing block and the second fixing block are located on both sides inside the clamp frame. The length of the first fixing block and the second fixing block is equally divided by the length of the clamp frame. The conveying and turning of the two side structures make the processing of the pipe fittings more flexible.

[0014] Preferably, the top of the fixture frame has an opening on one side for processing, and the opening is located above the location of the second fixing block. By setting the opening position, an external processing mechanism can perform processing operations.

[0015] The beneficial effects of the utility model are:

[0016] In this invention, the conveyor belt enables the placement and transport of pipe fittings. Activating the extended conveyor belt allows for adjustment of the clamping height of the pipe fittings to accommodate the pressing blocks and anti-slip balls. Activating the extended second pneumatic telescopic rod allows for adjustment of the clamping position of the pipe fittings. Activating the electric push rod allows for further adjustment of the clamping position. After the pressing blocks and anti-slip balls clamp the pipe fittings, the anti-slip balls prevent slippage. The clamping force is detected by a pressure sensor to prevent excessive clamping force from deforming the clamped pipe. When a turn is required, the extended electric push rod brings the pipe into contact with the turning transmission roller, and activating the motor enables the turning of the clamped pipe, facilitating more comprehensive processing of the pipe.

[0017] In this utility model, multiple first pneumatic telescopic rods can be set to achieve stable support for the first fixed plate. The multi-point pressing blocks can clamp the pipe wall at multiple points, disperse the force, and prevent pipe deformation. The electric push rods can expand or reduce the clamping area of ​​the pressing blocks and anti-slip balls.

[0018] In this invention, the retraction of the third pneumatic telescopic rod can prevent interference with the workpiece during the processing of the pressing block and the anti-slip ball clamping part. The conveying and steering of the two-sided structure makes the processing of the pipe more flexible, and the opening on one side can be used for processing operations by external processing mechanisms. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the rear view of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below;

[0023] Figure 4 This is a side view of the structure of this utility model;

[0024] Figure 5 This is a front view structural diagram of the present invention;

[0025] Figure 6 For the present utility model Figure 5 A magnified structural diagram of point A in the middle.

[0026] In the diagram: 1. Clamp frame; 2. First fixing block; 3. First pneumatic telescopic rod; 4. First fixing plate; 5. Groove; 6. Conveyor belt; 7. Second pneumatic telescopic rod; 8. Second fixing plate; 9. Electric push rod; 10. L-shaped support rod; 11. Third fixing plate; 12. Pressure sensor; 13. Connecting rod; 14. Pressing block; 15. Anti-slip ball; 16. Third pneumatic telescopic rod; 17. U-shaped fixing frame; 18. Motor; 19. Steering transmission roller; 20. Second fixing block. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example 1

[0028] A preferred embodiment of the thin-walled pipe outer diameter machining fixture provided by this utility model is as follows: Figures 1 to 6 As shown: A jig for machining the outer diameter of a thin-walled pipe fitting includes a jig frame 1. Two first fixing blocks 2 are fixedly connected to both sides of the jig frame 1. A first pneumatic telescopic rod 3 is fixedly connected to one side of each first fixing block 2. A first fixing plate 4 is fixedly connected to the other end of the first pneumatic telescopic rod 3. A slot 5 is opened inside the first fixing plate 4. A conveyor belt 6 is fixedly connected to one side of the slot 5. The conveyor belt 6 is symmetrically arranged on both sides of the lower part of the jig frame 1. Two second fixing blocks 20 are fixedly connected to the four corners of the other end of the jig frame 1. A second pneumatic telescopic rod 7 is fixedly connected to the side of the second fixing block 20 facing the center of the jig frame 1. The extension ends of the four sides of the second pneumatic telescopic rod 7 all face the same center point. A second fixing plate 8 is fixedly connected to the extension end of the second pneumatic telescopic rod 7. Electric... The electric push rod 9 has an L-shaped support rod 10 fixedly connected to its extension end. The other end of the L-shaped support rod 10 is fixedly connected to a third fixed plate 11. A pressure sensor 12 is fixedly connected to the other side of the third fixed plate 11. Connecting rods 13 are fixedly connected to the four corners of the other side of the third fixed plate 11. A pressing block 14 is fixedly connected to the other end of the connecting rod 13. An anti-slip ball 15 is fixedly connected to the other side of the pressing block 14. A third pneumatic telescopic rod 16 is fixedly connected to the side of the second fixed plate 8 facing the central axis inside the clamp frame 1. A U-shaped fixed frame 17 is fixedly connected to the extension end of the third pneumatic telescopic rod 16. A motor 18 is fixedly connected to one side of the U-shaped fixed frame 17. A steering transmission roller 19 is provided inside the U-shaped fixed frame 17. The output end of the motor 18 passes through the U-shaped fixed frame 17 and is fixedly connected to the steering transmission roller 19.

[0029] It should be noted that the existing clamps still have certain shortcomings in actual use. They can only be adjusted by manually swinging a wrench, which can easily cause a burden on the workers. In addition, this fixing method is not conducive to rotating the pipe fittings, which can easily restrict the processing surface.

[0030] In this embodiment, the conveyor belt 6 enables the placement and transport of pipe fittings. Activating the extended conveyor belt 6 adjusts the clamping height of the pipe fittings to accommodate the clamping of the pressing block 14 and anti-slip ball 15. Activating the extended second pneumatic telescopic rod 7 adjusts the clamping position of the pipe fittings. Activating the electric push rod 9 further adjusts the clamping position of the pipe fittings. After the pressing block 14 and anti-slip ball 15 clamp the pipe fittings, the anti-slip ball 15 provides anti-slip protection. The clamping force is detected by the pressure sensor 12, which prevents excessive clamping force from deforming the clamped pipe. When a turn is required, the extended electric push rod 9 brings the pipe into contact with the turning transmission roller 19. Activating the motor 18 enables the turning of the clamped pipe, facilitating more comprehensive processing of the pipe.

[0031] In a further preferred embodiment of this utility model, the number of first pneumatic telescopic rods 3 is set to eight, and the eight first pneumatic telescopic rods 3 are respectively distributed at the four corners of the slope position of the first fixed block 2 on both sides.

[0032] In this embodiment, the first fixed plate 4 can be stably supported by setting multiple first pneumatic telescopic rods 3.

[0033] In a further preferred embodiment of the present invention, the clamp frame 1 is provided with inlet and outlet ports on both sides, the first fixing block 2 is located on the inlet port side, and the second fixing block 20 is located on the outlet port side.

[0034] In this embodiment, automated feeding and unloading saves manpower.

[0035] In a further preferred embodiment of the present invention, the sensing end of the pressure sensor 12 is in contact with the pressing block 14. Multiple pressing blocks 14 are provided, and the movement direction of the multiple pressing blocks 14 is all towards the center of the clamp frame 1.

[0036] In this embodiment, the multi-point pressing block 14 can clamp the pipe wall at multiple points, disperse the force, and prevent pipe deformation. Example 2

[0037] Based on Embodiment 1, a preferred embodiment of the thin-walled tube outer diameter machining fixture provided by this utility model is as follows: Figures 1 to 6 As shown: The extension direction of the electric push rod 9 is perpendicular to the second pneumatic telescopic rod 7.

[0038] In this embodiment, the area clamped by the pressing block 14 and the anti-slip ball 15 can be expanded or reduced by the electric push rod 9.

[0039] In a further preferred embodiment of this utility model, the output end of the motor 18 is inserted into the side plate of the U-shaped fixing frame 17 and rotates. In the retracted state, the extension length of the steering transmission roller 19 is less than that of the L-shaped support rod 10.

[0040] In this embodiment, by retracting the third pneumatic telescopic rod 16, interference with the workpiece can be avoided when the pressing block 14 and the anti-slip ball 15 clamping parts are being processed.

[0041] In a further preferred embodiment of the present invention, the clamp frame 1 is away from the second fixing block 20, the first fixing block 2 and the second fixing block 20 are respectively located on both sides inside the clamp frame 1, and the length of the first fixing block 2 and the second fixing block 20 is equally divided by the length of the clamp frame 1.

[0042] In this embodiment, the conveying and turning of the two-sided structure makes the processing of the pipe fittings more flexible.

[0043] In a further preferred embodiment of the present invention, an opening for processing is provided on one side of the top of the clamp frame 1, and the opening is located above the position of the second fixing block 20.

[0044] In this embodiment, the opening position is provided so that an external processing mechanism can perform processing operations.

[0045] The working principle of this utility model is as follows: First, the pipe is placed between the two conveyor belts 6. Activating the extended conveyor belt 6 adjusts the clamping height of the pipe fitting to accommodate the clamping of the pressing block 14 and anti-slip ball 15. Activating the extended second pneumatic telescopic rod 7 adjusts the clamping position of the pipe fitting. Activating the electric push rod 9 further adjusts the clamping position of the pipe fitting. After the pressing block 14 and anti-slip ball 15 clamp the pipe fitting, the anti-slip ball 15 provides anti-slip protection. The clamping force is detected by the pressure sensor 12, which controls the start and stop to prevent excessive clamping force from deforming the clamped pipe. When a turn is required, the extended electric push rod 9 brings the pipe into contact with the turning transmission roller 19. Activating the motor 18 clamps the pipe and turns it, facilitating more comprehensive processing of the pipe from the open position.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixture for machining the outer diameter of thin-walled pipe fittings, characterized in that, The fixture includes a clamp frame (1): A first fixing block (2) is fixedly connected to both sides of the interior of the clamp frame (1). A first pneumatic telescopic rod (3) is fixedly connected to one side of the first fixing block (2). A first fixing plate (4) is fixedly connected to the other end of the first pneumatic telescopic rod (3). A slot (5) is opened inside the first fixing plate (4). A conveyor belt (6) is fixedly connected to one side of the slot (5). The conveyor belt (6) is symmetrically arranged on both sides below the interior of the clamp frame (1). A second fixing block (20) is fixedly connected to each of the four corners of the other end of the interior of the clamp frame (1). A second pneumatic telescopic rod (7) is fixedly connected to the side of the second fixing block (20) facing the center of the interior of the clamp frame (1). The extension ends of the second pneumatic telescopic rods (7) on all four sides face the same center point. A second fixing plate (8) is fixedly connected to the extension end of the second pneumatic telescopic rod (7). An electric push rod (9) is fixedly connected to each side of the second fixing plate (8). An L-shaped support rod (10) is fixedly connected to the extension end of the rod (9). A third fixing plate (11) is fixedly connected to the other end of the L-shaped support rod (10). A pressure sensor (12) is fixedly connected to the other side of the third fixing plate (11). Connecting rods (13) are fixedly connected to the four corners of the other side of the third fixing plate (11). A pressing block (14) is fixedly connected to the other end of the connecting rod (13). An anti-slip ball (15) is fixedly connected to the other side of the pressing block (14). A third pneumatic telescopic rod (16) is fixedly connected to the side of the second fixing plate (8) facing the central axis inside the clamp frame (1). A U-shaped fixing frame (17) is fixedly connected to the extension end of the third pneumatic telescopic rod (16). A motor (18) is fixedly connected to one side of the U-shaped fixing frame (17). A steering transmission roller (19) is provided inside the U-shaped fixing frame (17). The output end of the motor (18) passes through the U-shaped fixing frame (17) and is fixedly connected to the steering transmission roller (19).

2. The fixture for machining the outer diameter of a thin-walled pipe fitting according to claim 1, characterized in that, The number of the first pneumatic telescopic rods (3) is set to eight, and the eight first pneumatic telescopic rods (3) are respectively distributed at the four corners of the slope position of the first fixed block (2) on both sides.

3. The thin-walled pipe fitting outer diameter machining fixture according to claim 1, characterized in that, The clamp frame (1) is provided with inlet and outlet ports on both sides, the first fixing block (2) is located on the inlet side, and the second fixing block (20) is located on the outlet side.

4. A machining fixture for the outer diameter of a thin-walled pipe fitting according to claim 1, characterized in that, The sensing end of the pressure sensor (12) is in contact with the pressing block (14). Multiple pressing blocks (14) are provided, and the movement direction of the multiple pressing blocks (14) is towards the middle of the clamp frame (1).

5. A fixture for machining the outer diameter of a thin-walled pipe fitting according to claim 1, characterized in that, The electric push rod (9) extends perpendicularly to the second pneumatic telescopic rod (7).

6. A fixture for machining the outer diameter of a thin-walled pipe fitting according to claim 1, characterized in that, The output end of the motor (18) is inserted into the side plate of the U-shaped fixed frame (17) and rotates. The length of the extension of the third pneumatic telescopic rod (16) to the steering transmission roller (19) in the retracted state is less than that of the L-shaped support rod (10).

7. A machining fixture for the outer diameter of a thin-walled pipe fitting according to claim 1, characterized in that, The clamp frame (1) is away from the second fixing block (20). The first fixing block (2) and the second fixing block (20) are located on both sides inside the clamp frame (1). The length of the first fixing block (2) and the second fixing block (20) is equally divided by the length of the clamp frame (1).

8. A machining fixture for the outer diameter of a thin-walled pipe fitting according to claim 1, characterized in that, The clamp frame (1) has an opening on one side of its top for machining, and the opening is located above the location of the second fixing block (20).

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