Pipe opening size control device

Abstract

The utility model provides a pipe opening size control device, which relates to the technical field of size control devices, and comprises a base, a rack is fixedly mounted on the top surface of the base, a hydraulic cylinder is fixedly mounted on the top surface of the rack, a connecting rod is mounted at the output end of the hydraulic cylinder, a flaring piece is fixedly mounted at one end of the connecting rod, and the flaring piece is fixedly mounted at the other end of the connecting rod. A fixing seat is fixedly mounted on the top face of the base, a flaring through hole is formed in the side face of the fixing seat, a mounting block is fixedly mounted on the surface of a connecting rod, a rotating rod is rotationally connected to the inner side of the mounting block, a connecting frame is fixedly mounted on the surface of the rotating rod, and a heating pipe is fixedly mounted on the surface of the connecting frame. And a top block is fixedly mounted at the top end of the rotating rod. According to the pipe expanding device, the pipe opening can be expanded through the expanding piece, so that the size of the pipe opening is controlled, the ductility of the pipe can be improved in a preheating mode, in this way, the probability of cracks of the pipe can be reduced during hole expanding, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of size control devices, in particular to a pipe opening size control device. Background Art

[0002] After multiple processing, the mouth of the pipe may be oval or other irregular shapes. In order to ensure the quality and appearance of the pipe, it is usually necessary to expand the mouth of the pipe to make it round. Such processing measures help improve the overall quality of the pipe and make it more in line with aesthetic standards.

[0003] Publication No. CN216632099U discloses a pipe expanding machine, including a frame, on which a expanding device is provided; the expanding device includes a fixed seat, a telescopic rod and a first expanding assembly, the fixed seat is fixedly connected to the frame, with the axial direction of the telescopic rod as the left-right direction, the axis of the telescopic rod extends along the left-right direction, the telescopic rod is movably connected to the frame, the telescopic rod can reciprocate in the left-right direction, the first expanding assembly includes a plurality of first expanding blocks, the plurality of first expanding blocks are circumferentially arranged around the axis of the telescopic rod, all the first expanding blocks are movably connected to the fixed seat, the first expanding block can be away from or close to the axis of the telescopic rod in the radial direction of the telescopic rod; a first expanding portion is provided on the telescopic rod, a second expanding portion is provided on the first expanding block to match the first expanding portion, the first expanding portion and the second expanding portion are used to push the first expanding block away from the axis of the telescopic rod in the radial direction of the telescopic rod. Although this device can expand pipes with different inner diameters, the pipe has poor elongation at room temperature. When expanding the pipe, it is easy to cause cracks in the pipe, affecting the yield rate, and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a device for controlling the size of a pipe support mouth, comprising a base, a frame is fixedly installed on the top surface of the base, a hydraulic cylinder is fixedly installed on the top surface of the frame, a connecting rod is installed on the output end of the hydraulic cylinder, a flaring piece is fixedly installed on one end of the connecting rod, a fixing seat is fixedly installed on the top surface of the base, a flaring through hole is provided on the side of the fixing seat, a mounting block is fixedly installed on the surface of the connecting rod, a rotating rod is rotatably connected to the inner side of the mounting block, a connecting frame is fixedly installed on the surface of the rotating rod, a heating pipe is fixedly installed on the surface of the connecting frame, a top block is fixedly installed on the top end of the rotating rod, a positioning rod is penetrated on the top surface of the top block, the positioning rod is slidably connected to the top block, a tension spring is sleeved on the surface of the positioning rod, and a positioning hole A and a positioning hole B are provided on the top surface of the mounting block.

[0006] Preferably, one end of the tension spring is fixedly connected to the pull block, and the other end of the tension spring is fixedly connected to the top block. Here, the tension spring can be stably installed.

[0007] Preferably, the positioning rod is compatible with both the positioning hole A and the positioning hole B, and the mounting block is a "U"-shaped structure.

[0008] Preferably, a reinforcing rib is fixedly installed on the inner side of the connecting frame, and the reinforcing rib is made of ferrite stainless steel. Here, the structural strength of the connecting frame can be enhanced.

[0009] Preferably, a pull block is fixedly mounted on the top of the positioning rod, so that the positioning rod can be pulled conveniently.

[0010] Preferably, the surface of the fixing seat is provided with a fixing mechanism, the fixing mechanism includes a cylinder, the cylinder is fixedly mounted on the surface of the fixing seat, a clamping block is mounted on the output end of the cylinder, a soft strip is fixedly mounted on the surface of the clamping block, and convex particles are fixedly mounted on the surface of the soft strip. Here, the pipe can be firmly fixed.

[0011] Preferably, the soft strips and the convex particles are made of natural rubber, and the soft strips are arranged at equal distances on the surface of the clamping block. Here, the service life of the soft strips and the convex particles can be increased.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the present utility model, when actually used, the pipe is inserted into the expanded through hole for fixing, and then the connecting rod and the expanding piece are driven to move by the hydraulic cylinder. The expanding piece is inserted into the hole of the pipe at this time, and the expanding piece expands the pipe to complete the hole expansion. When encountering a pipe with a smaller diameter, the staff can pull the pull block upward, and the pull block then drives the positioning rod to leave the positioning hole A. At this time, the connection frame and the heating tube are released from the limit, and then only the connection frame needs to be rotated 90 degrees. At this time, the connection frame can be rotated by the rotating rod, and the connection frame drives the heating tube to move until the heating tube faces the expanded through hole, and then the pull block is released. At this time, due to the tension of the tension spring, the tension spring can pull the pull block Move downward, and the pull block then drives the positioning rod to insert into the positioning hole B. At this time, the position of the heating tube can be limited. Then the connecting rod is driven to move by the hydraulic cylinder, and the connecting rod then drives the heating tube to move until the heating tube extends into the inner wall of the pipe for heating. At this time, the pipe can be heated, thereby improving the ductility of the pipe. Then the heating tube is retracted, and then when expanding the hole, the probability of cracks in the pipe can be reduced. The utility model can expand the pipe mouth by the expansion piece set, thereby controlling the size of the pipe mouth, and can also improve the ductility of the pipe by preheating. In this way, when expanding the hole, the probability of cracks in the pipe can be reduced, and the practicality is high.

[0014] 2. In the utility model, during actual use, the cylinder can drive the clamping block to move, and the clamping block can clamp the pipe at this time, so that the pipe can be firmly fixed in the expanded through hole, and the soft strip can increase the friction between the clamping block and the pipe, and the convex particles can further increase the friction, so that the pipe can be further effectively fixed to prevent the pipe from falling off, and the structure is simple, the cost is low, and the practicality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a pipe opening size control device is provided for the utility model;

[0016] Figure 2 A pipe support size control device is proposed for the utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 A top view of a pipe opening size control device is provided for the utility model;

[0018] Figure 4 A pipe support size control device is proposed for the utility model Figure 3 Enlarged view of point B in the middle;

[0019] Figure 5 The utility model provides a side view of a pipe opening size control device.

[0020] Legend:

[0021] 1. Base; 2. Frame; 3. Hydraulic cylinder; 4. Connecting rod; 5. Expanding piece; 6. Fixed seat; 7. Expanding through hole; 8. Mounting block; 9. Turn rod; 10. Connecting frame; 11. Heating tube; 12. Reinforcing rib; 13. Top block; 14. Positioning rod; 15. Pull block; 16. Tension spring; 17. Positioning hole A; 18. Positioning hole B; 19. Cylinder; 20. Clamping block; 21. Soft strip; 22. Bump. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1

[0025] See also Figure 1-5 The utility model provides a technical solution: a device for controlling the size of a pipe opening, comprising a base 1, a frame 2 is fixedly installed on the top surface of the base 1, a hydraulic cylinder 3 is fixedly installed on the top surface of the frame 2, a connecting rod 4 is installed on the output end of the hydraulic cylinder 3, an expanding piece 5 is fixedly installed on one end of the connecting rod 4, a fixing seat 6 is fixedly installed on the top surface of the base 1, an expanding through hole 7 is opened on the side of the fixing seat 6, a pipe is inserted into the expanding through hole 7 for fixing, and then the connecting rod 4 and the expanding piece 5 are driven to move by the hydraulic cylinder 3, and the expanding piece 5 is inserted into the hole of the pipe at this time, and the expanding piece 5 expands the pipe to complete the expansion. A mounting block 8 is fixedly installed on the surface of the connecting rod 4, and the mounting block 8 is a "U"-shaped structure. A rotating rod 9 is rotatably connected to the inner side of the mounting block 8. A connecting frame 10 is fixedly installed on the surface of the rotating rod 9. A reinforcing rib 12 is fixedly installed on the inner side of the connecting frame 10. The reinforcing rib 12 can strengthen the structural strength of the connecting frame 10 and prevent the connecting frame 10 from bending and deformation. The reinforcing rib 12 is made of ferritic stainless steel. The reinforcing rib 12 made of ferritic stainless steel has low cost. A heating tube 11 is fixedly installed on the surface of the connecting frame 10. The heating tube 11 is used to heat the inner wall of the pipe, thereby improving the ductility of the pipe.

[0026] See also Figure 1-5 A top block 13 is fixedly installed on the top of the rotating rod 9, and a positioning rod 14 is penetrated on the top surface of the top block 13. A pull block 15 is fixedly installed on the top of the positioning rod 14. The positioning rod 14 is slidably connected with the top block 13. A tension spring 16 is sleeved on the surface of the positioning rod 14. One end of the tension spring 16 is fixedly connected to the pull block 15, and the other end of the tension spring 16 is fixedly connected to the top block 13. A positioning hole A17 and a positioning hole B18 are opened on the top surface of the mounting block 8. The pull block 15 is pulled upward, and the pull block 15 then drives the positioning rod 14 to leave the positioning hole A17. At this time, the connection frame 10 and the heating tube 11 are released from the limit, and then the connection frame 10 only needs to be rotated 90 degrees. The connection frame 10 is now At this time, the rotating rod 9 can be rotated, and the connecting frame 10 drives the heating tube 11 to move until the heating tube 11 faces the expanded through hole 7, and then the pull block 15 is released. At this time, due to the tension of the tension spring 16, the tension spring 16 can pull the pull block 15 to move downward, and the pull block 15 then drives the positioning rod 14 to insert into the positioning hole B18. At this time, the position of the heating tube 11 can be limited, and then the connecting rod 4 is driven to move by the hydraulic cylinder 3, and the connecting rod 4 then drives the heating tube 11 to move until the heating tube 11 extends into the inner wall of the pipe for heating. At this time, the pipe 11 can be heated, thereby improving the ductility of the pipe, and the positioning rod 14 is adapted to the positioning hole A17 and the positioning hole B18.

[0027] Embodiment 2

[0028] See also Figure 3-4A fixing mechanism is provided on the surface of the fixing seat 6, and the fixing mechanism includes a cylinder 19. The cylinder 19 is fixedly installed on the surface of the fixing seat 6. A clamping block 20 is installed at the output end of the cylinder 19. The clamping block 20 can be driven to move by the cylinder 19. The clamping block 20 can clamp the pipe at this time, so that the pipe can be firmly fixed in the expanded through hole 7. A soft strip 21 is fixedly installed on the surface of the clamping block 20. The surface of the soft strip 21 is fixedly installed with convex particles 22. The materials of the soft strip 21 and the convex particles 22 are both natural rubber. The friction between the clamping block 20 and the pipe can be increased by setting the soft strip 21, and the friction can be further increased by setting the convex particles 22, so that the pipe can be further effectively fixed. The soft strips 21 are arranged at equal distances on the surface of the clamping block 20.

[0029] Working principle: the pipe is inserted into the expanded through hole 7 for fixing, and then the connecting rod 4 and the expanding piece 5 are driven to move by the hydraulic cylinder 3. The expanding piece 5 is now inserted into the hole of the pipe. At this time, the expanding piece 5 expands the pipe to complete the hole expansion. When encountering a pipe with a smaller diameter, the staff can pull the pull block 15 upward, and the pull block 15 then drives the positioning rod 14 to leave the positioning hole A17. At this time, the connecting frame 10 and the heating tube 11 are released from the limit, and then it is only necessary to rotate the connecting frame 10 ninety degrees. The connecting frame 10 can now be rotated by the rotating rod 9, and at the same time, the connecting frame 10 drives the heating tube 11 to move until the heating tube 11 faces the expanded through hole 7, and then release the pull block 15. At this time, due to the tension of the tension spring 16, the tension spring 16 can pull the pull block 15 downward, and the pull block 15 then drives the positioning rod 14 to move. The positioning rod 14 is inserted into the positioning hole B18, at which time the position of the heating tube 11 can be limited, and then the connecting rod 4 is driven to move by the hydraulic cylinder 3, and the connecting rod 4 then drives the heating tube 11 to move until the heating tube 11 extends into the inner wall of the pipe for heating. At this time, the pipe 11 can be heated, thereby improving the ductility of the pipe, and then the heating tube 11 is retracted, and then when expanding the hole, the probability of cracks in the pipe can be reduced, and the clamping block 20 can be driven to move by the cylinder 19, and the clamping block 20 can clamp the pipe at this time, so that the pipe can be firmly fixed in the expanded through hole 7, and the soft strip 21 provided can increase the friction between the clamping block 20 and the pipe, and the convex particles 22 provided can further increase the friction, which can further effectively fix the pipe and prevent it from falling off.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A pipe opening size control device, comprising a base (1), characterized in that: The top surface of the base (1) is fixedly mounted with a frame (2), the top surface of the frame (2) is fixedly mounted with a hydraulic cylinder (3), the output end of the hydraulic cylinder (3) is mounted with a connecting rod (4), one end of the connecting rod (4) is fixedly mounted with a flaring member (5), the top surface of the base (1) is fixedly mounted with a fixing seat (6), the side surface of the fixing seat (6) is provided with a flaring through hole (7), the surface of the connecting rod (4) is fixedly mounted with a mounting block (8), the inner side of the mounting block (8) is rotatably connected with a rotating rod (9) ), a connecting frame (10) is fixedly mounted on the surface of the rotating rod (9), a heating tube (11) is fixedly mounted on the surface of the connecting frame (10), a top block (13) is fixedly mounted on the top end of the rotating rod (9), a positioning rod (14) is penetrated through the top surface of the top block (13), the positioning rod (14) and the top block (13) are slidably connected, a tension spring (16) is sleeved on the surface of the positioning rod (14), and a positioning hole A (17) and a positioning hole B (18) are opened on the top surface of the mounting block (8).

2. The pipe opening size control device according to claim 1, characterized in that: One end of the tension spring (16) is fixedly connected to the pull block (15), and the other end of the tension spring (16) is fixedly connected to the top block (13).

3. The pipe opening size control device according to claim 1, characterized in that: The positioning rod (14) is compatible with both the positioning hole A (17) and the positioning hole B (18), and the mounting block (8) is a "U"-shaped structure.

4. The pipe opening size control device according to claim 1, characterized in that: A reinforcing rib (12) is fixedly mounted on the inner side of the connecting frame (10), and the reinforcing rib (12) is made of ferritic stainless steel.

5. The pipe opening size control device according to claim 1, characterized in that: A pull block (15) is fixedly mounted on the top end of the positioning rod (14).

6. The pipe opening size control device according to claim 1, characterized in that: The surface of the fixing seat (6) is provided with a fixing mechanism, the fixing mechanism comprising a cylinder (19), the cylinder (19) being fixedly mounted on the surface of the fixing seat (6), a clamping block (20) being mounted on the output end of the cylinder (19), a soft strip (21) being fixedly mounted on the surface of the clamping block (20), and a convex particle (22) being fixedly mounted on the surface of the soft strip (21).

7. The pipe opening size control device according to claim 6, characterized in that: The soft strips (21) and the convex particles (22) are both made of natural rubber, and the soft strips (21) are arranged at equal distances on the surface of the clamping block (20).

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