Fixing device for machining transition section in thick-wall pipeline

Abstract

The utility model belongs to the technical field of fixing devices, and particularly relates to a fixing device for processing a transition section in a thick-wall pipeline, which comprises a base, a two-way screw rod is mounted in the base through a bearing, two moving blocks are connected to the outer side of a rod body of the two-way screw rod through threads, and the moving blocks penetrate through the base and are in sliding connection with the base. The top of the moving block is fixedly connected with a connecting base, and an in-pipe fixing mechanism is arranged at the top of the connecting base. According to the utility model, through the arrangement of the in-pipe fixing mechanism, the adjusting rod is rotated through the turntable and the rotating rod, the adjusting rod moves transversely through the thread movement between the adjusting rod and the supporting plate, and then the ball at the tail end of the adjusting rod pushes the lining block out of the hollow cylinder, so that the thick-wall pipeline can be clamped and fixed from the inner side; and the lining block can be suitable for thick-wall pipelines with different pipe diameters due to the adjustability of the lining block.

Description

Technical Field

[0001] This utility model relates to the field of fixing device technology, specifically a fixing device for processing the transition section inside a thick-walled pipe. Background Technology

[0002] Thick-walled pipes typically refer to pipes with a large wall thickness, used to withstand higher pressures or transport media. They are mainly used in industrial fields such as chemical, petroleum, and natural gas industries. Due to their greater wall thickness, thick-walled pipes possess higher pressure resistance and load-bearing capacity, making them suitable for environments requiring high strength and safety. Currently, during the bending process of thick-walled pipes, the intermediate transition section needs to bear stress, necessitating pipe fixing. However, typical fixing devices are designed based on the diameter and length of the pipe to be processed, resulting in poor applicability to thick-walled pipes of varying diameters and lengths. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a fixing device for processing the transition section inside a thick-walled pipe, which solves the problem of poor applicability of existing fixing devices for thick-walled pipes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for processing the transition section inside a thick-walled pipe, comprising a base, a bidirectional screw mounted inside the base via bearings, two movable blocks connected to the outer side of the bidirectional screw via threads, the movable blocks penetrating the base and slidably connected to the base, a connecting seat fixedly connected to the top of the movable blocks, an internal pipe fixing mechanism provided on the top of the connecting seat, a rotating wheel fixedly connected to one end of the bidirectional screw located outside the base, a locking disc slidably sleeved on the outer side of the bidirectional screw, the locking disc engaging with the base, a locking block fixedly connected to the base, and the locking block engaging with the locking disc.

[0005] Preferably, the bottom of the movable block is provided with ball bearings, which are slidably connected to the base. The ball bearings reduce the relative friction between the movable block and the base.

[0006] Preferably, a guide block is fixedly connected to the inner ring wall of the locking disc, and the guide block is slidably connected to the bidirectional screw. The guide block guides the axial movement of the locking disc along the bidirectional screw.

[0007] Preferably, the internal pipe fixing mechanism includes a support plate fixedly connected to the top of the connecting seat, a hollow cylinder fixedly connected to the support plate, an inner liner block slidably connected to the side wall of the hollow cylinder, and the inner liner block penetrating the hollow cylinder. An adjusting rod is threadedly connected inside the support plate, and the adjusting rod penetrates the support plate. One end of the adjusting rod is fixedly connected to a ball, and the ball abuts against the inner liner block. This internal pipe fixing mechanism facilitates the clamping and fixing of rear-wall pipes of different diameters.

[0008] Preferably, a turntable is fixedly connected to the other end of the adjusting rod, and a rotating rod is fixedly connected to the turntable. The turntable and rotating rod facilitate the rotation of the adjusting rod.

[0009] Preferably, a guide frame is fixedly connected to the inner wall of the hollow cylinder, the guide frame is slidably connected to the inner lining block, and a guide rod is fixedly connected inside the inner lining block. The guide rod passes through the guide frame and is slidably connected to it. A spring is sleeved on the outer side of the guide rod, one end of the spring is fixedly connected to the guide frame, and the other end of the spring is fixedly connected to the inner surface of the inner lining block. The guide frame and guide rod provide guidance for the expansion and contraction of the inner lining block.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model sets up an internal fixing mechanism, wherein the adjusting rod is rotated by a turntable and a rotating rod, and the adjusting rod moves laterally through the threaded movement between it and the support plate. Then, the ball at the end of the adjusting rod pushes the inner liner block out of the hollow cylinder. In this way, the thick-walled pipe can be clamped and fixed from the inside. Moreover, the adjustability of the inner liner block can be used to accommodate thick-walled pipes of different diameters.

[0012] 2. This utility model features a base with a bidirectional screw that drives two moving blocks to move towards or away from each other. Simultaneously, an internal fixing mechanism is fixed to a connecting seat on the moving block. This allows control over the distance between the two internal fixing mechanisms, thus satisfying the need for fixing thick-walled pipes of different lengths and further improving the overall applicability. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall structure of this utility model;

[0014] Figure 2 For the present utility model Figure 1 A partial structural diagram;

[0015] Figure 3 For the present utility model Figure 1 A front sectional view;

[0016] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A;

[0017] Figure 5 For the present utility model Figure 3 Enlarged view of the internal fixing mechanism;

[0018] Figure 6 For the present utility model Figure 5 Enlarged view of the structure at point B.

[0019] In the diagram: 1. Base; 2. Bidirectional screw; 3. Moving block; 4. Connecting seat; 5. Intra-tube fixing mechanism; 6. Ball bearing; 7. Rotary wheel; 8. Locking disc; 9. Locking block; 10. Guide block; 51. Support plate; 52. Hollow cylinder; 53. Liner block; 54. Adjusting rod; 55. Ball; 56. Turntable; 57. Rotating rod; 58. Guide frame; 59. Guide rod; 510. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 A fixing device for machining the transition section inside a thick-walled pipe includes a base 1. A bidirectional screw 2 is mounted inside the base 1 via bearings. Two movable blocks 3 are threadedly connected to the outer side of the screw 2. The movable blocks 3 penetrate the base 1 and are slidably connected to it. Ball bearings 6 are provided at the bottom of the movable blocks 3, and are slidably connected to the base 1. The ball bearings 6 reduce the relative friction between the movable blocks 3 and the base 1. A connecting seat 4 is fixedly connected to the top of the movable blocks 3. A rotating wheel 7 is fixedly connected to one end of the bidirectional screw 2 located on the outer side of the base 1.

[0022] Please see Figure 1 , Figure 3 , Figure 4 A locking disc 8 is slidably sleeved on the outer side of the bidirectional screw 2. The locking disc 8 is attracted to the base 1, and a locking block 9 is fixedly connected to the base 1, engaging with the locking disc 8. A guide block 10 is fixedly connected to the inner ring wall of the locking disc 8, and the guide block 10 is slidably connected to the bidirectional screw 2. The guide block 10 guides the axial movement of the locking disc 8 on the bidirectional screw 2.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 The top of the connecting seat 4 is provided with an internal pipe fixing mechanism 5. This mechanism facilitates the clamping and fixing of rear-wall pipes of different diameters. The internal pipe fixing mechanism 5 includes a support plate 51 fixedly connected to the top of the connecting seat 4. A hollow cylinder 52 is fixedly connected to the support plate 51. An inner liner block 53 is slidably connected to the side wall of the hollow cylinder 52, and the inner liner block 53 penetrates through the hollow cylinder 52. An adjusting rod 54 is threadedly connected inside the support plate 51, and the adjusting rod 54 penetrates through the support plate 51. One end of the adjusting rod 54 is fixedly connected to a ball 55, which abuts against the inner liner block 53. The other end of the adjusting rod 54 is fixedly connected to a turntable 56, and a rotating rod 57 is fixedly connected to the turntable 56. The turntable 56 and rotating rod 57 facilitate the rotation of the adjusting rod 54. A guide frame 58 is fixedly connected to the inner wall of the hollow cylinder 52, and the guide frame 58 is slidably connected to the inner lining block 53. A guide rod 59 is fixedly connected inside the inner lining block 53, passing through the guide frame 58 and slidably connected to it. A spring 510 is sleeved on the outer side of the guide rod 59, with one end of the spring 510 fixedly connected to the guide frame 58 and the other end fixedly connected to the inner surface of the inner lining block 53. The guide frame 58 and guide rod 59 provide guidance for the extension and retraction of the inner lining block 53.

[0024] The specific implementation process of this utility model is as follows: In use, the thick-walled pipe is first placed in the hollow cylinder 52 of the two pipe fixing mechanisms 5. Then, the locking disc 8 on the bidirectional screw 2 is separated from the locking block 9. Then, the bidirectional screw 2 is rotated by the rotating wheel 7, so that the two moving blocks 3 move towards each other, and at the same time, the two pipe fixing mechanisms 5 move towards each other until the end of the thick-walled pipe touches the support plate 51. Then, the locking disc 8 is reset to lock the bidirectional screw 2. Then, the adjusting rod 54 is rotated by the rotating disc 56 and the rotating rod 57. The adjusting rod 54 moves laterally through the threaded movement between it and the support plate 51. Then, the ball 55 at the end of the adjusting rod 54 pushes the inner liner 53 out of the hollow cylinder 52. In this way, the thick-walled pipe can be clamped and fixed from the inside. Moreover, the adjustability of the inner liner 53 can be used to accommodate thick-walled pipes of different diameters.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for processing of a thick-walled pipe inner transition, comprising a base (1), characterized in that: The base (1) is equipped with a bidirectional screw (2) inside by bearings. Two moving blocks (3) are connected to the outside of the rod of the bidirectional screw (2) by threads. The moving blocks (3) pass through the base (1) and are slidably connected to the base (1). A connecting seat (4) is fixedly connected to the top of the moving blocks (3). An internal fixing mechanism (5) is provided on the top of the connecting seat (4). A rotating wheel (7) is fixedly connected to one end of the bidirectional screw (2) located outside the base (1). A locking disc (8) is slidably sleeved on the outside of the bidirectional screw (2). The locking disc (8) is attracted to the base (1). A locking block (9) is fixedly connected to the base (1). The locking block (9) is engaged with the locking disc (8).

2. A fixture for processing of an inner transition of a thick walled pipe according to claim 1, characterized in that: The bottom of the movable block (3) is provided with a ball bearing (6), which is slidably connected to the base (1).

3. A fixture for processing of an inner transition of a thick walled pipe according to claim 1, characterized in that: The inner ring wall of the lock disc (8) is fixedly connected to a guide block (10), and the guide block (10) is slidably connected to the bidirectional screw (2).

4. A fixture for processing of an inner transition of a thick walled pipe according to claim 1, characterized in that: The tube fixing mechanism (5) includes a support plate (51) fixedly connected to the top of the connecting seat (4). A hollow cylinder (52) is fixedly connected to the support plate (51). An inner liner block (53) is slidably connected to the side wall of the hollow cylinder (52), and the inner liner block (53) is disposed through the hollow cylinder (52). An adjusting rod (54) is threadedly connected inside the support plate (51), and the adjusting rod (54) is disposed through the support plate (51). A ball (55) is fixedly connected to one end of the adjusting rod (54), and the ball (55) abuts against the inner liner block (53).

5. A fixture for processing of an inner transition of a thick walled pipe according to claim 4, characterized in that: The other end of the adjusting rod (54) is fixedly connected to a turntable (56), and a rotating rod (57) is fixedly connected to the turntable (56).

6. A fixture for processing of an inner transition of a thick walled pipe according to claim 4, characterized in that: The hollow cylinder (52) has a guide frame (58) fixedly connected to its inner wall. The guide frame (58) is slidably connected to the inner lining block (53). The inner lining block (53) has a guide rod (59) fixedly connected inside. The guide rod (59) passes through the guide frame (58) and is slidably connected to the guide frame (58). A spring (510) is sleeved on the outer side of the guide rod (59). One end of the spring (510) is fixedly connected to the guide frame (58), and the other end of the spring (510) is fixedly connected to the inner surface of the inner lining block (53).

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