Clamping device for welding jig pipeline

Abstract

The utility model relates to the technical field of pipeline clamping and positioning, in particular to a clamping device of a welding jig pipeline. The hydraulic pipeline clamping device comprises a workbench, a clamping piece is arranged on one side of the workbench, the clamping piece clamps a hydraulic pipeline, and the clamping piece comprises a bearing mechanism and a clamping mechanism arranged on the upper side of the bearing mechanism. The top of the bearing plate is arranged to be of the downwards-concave arc-shaped structure, one end of the clamping plate inclines towards the middle of the upper side of the bearing plate, when the clamping plate clamps a pipeline, the connecting lines of the contact positions of the bearing plate, the clamping plate and the pipeline form an acute triangle, the clamping plate extrudes the pipeline downwards, and the pipeline is clamped by the clamping plate. The pipeline is supported by the bearing plate, so that the pipeline is stably clamped and fixed, and when the pipeline is too long, the pipeline is stably clamped through three-point clamping of the clamping piece on the pipeline, so that the clamping stability of the pipeline is improved, and the welding stability of the pipeline is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline clamping and positioning, in particular to a clamping device for a welding jig pipeline. Background Art

[0002] In the hydraulic press, the pipes, elbows and straight pipes need to be welded at the connection points. When welding the elbows and straight pipes, argon gas needs to be input into the pipes to protect the internal welds of the pipes from being oxidized by high temperature. At the same time, there is an argon output pipe on the welding gun to input argon gas to the outside of the pipe welds to protect the external welds of the pipes from being oxidized by high temperature, thereby ensuring the welding effect of the pipes. At the same time, in order to improve the welding effect of the pipes, the pipes will be clamped and positioned. Currently, when clamping and positioning the pipes, two straight plates are used to clamp the pipes close to each other to ensure the stability of the pipes during welding.

[0003] However, since the pipeline has a length, when the two straight plates clamp the pipeline, the end of the pipeline away from the clamped end will move downward due to the effect of gravity, and the pipeline clamped by the straight plates will move due to the downward movement of one end of the pipeline, causing the pipeline to be displaced during the welding process, thereby affecting the workers' welding of the pipeline. In order to improve the stability of the pipeline during welding, this solution provides a clamping device for a welding jig pipeline. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping device for a welding jig pipeline to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides a clamping device for a welding jig pipeline, comprising a workbench, a clamping member is arranged on one side of the workbench, the clamping member clamps the hydraulic pipeline, the clamping member comprises a receiving mechanism and a clamping mechanism arranged on the upper side of the receiving mechanism, the receiving mechanism receives the pipeline, the clamping mechanism clamps and fixes the pipeline arranged on the receiving mechanism, and at the same time, in the process of the clamping mechanism clamping the pipeline on the upper side of the receiving mechanism, the connecting line of the contact position between the clamping mechanism, the receiving mechanism and the pipeline forms an acute triangle.

[0006] As a further improvement of the present technical solution, the receiving mechanism includes a plug-in rod and a mounting block fixed on the top of the plug-in rod, a receiving plate is fixed on the top of the mounting block, the upper side of the receiving plate is a concave arc structure, and the receiving plate receives the pipeline.

[0007] As a further improvement of the present technical solution, the clamping mechanism includes two relatively arranged clamping plates, the clamping plates are arc-shaped, and the two clamping plates are arranged on the upper side of the receiving plate near the two ends, and the upper ends of the two receiving plates are inclined toward the middle position of the upper side of the receiving plate.

[0008] As a further improvement of the technical solution, a plurality of sliding blocks are fixed to the lower side of the clamping plate, a plurality of sliding grooves are symmetrically opened on the receiving plate, and the sliding blocks are slidably arranged inside the sliding grooves.

[0009] As a further improvement of the present technical solution, a rotating column is rotatably arranged on the mounting block, a driving structure for driving the rotating column to rotate is arranged on one side of the rotating column, threaded rods are fixed at both ends of the rotating column, nuts are fixed on the lower sides of several sliding blocks fixed on the clamping plate through connecting rods, and the threaded rods and nuts are threadedly connected.

[0010] As a further improvement of the technical solution, baffles are screwed at both ends of the receiving plate, and one end of the threaded rod is rotatably disposed on the baffle.

[0011] As a further improvement of the present technical solution, corresponding teeth are provided on the two clamping plates. When the two clamping plates approach each other, the two clamping plates are staggered together, and when the clamping plates clamp the pipeline, the clamping plates squeeze the pipeline downward, and the receiving plate receives the pipeline, so that the connecting line of the contact position between the receiving plate, the clamping plate and the pipeline forms an acute triangle.

[0012] As a further improvement of the technical solution, the workbench includes a placement table, a plug-in column is fixed to one side of the placement table, one end of the plug-in rod is slidably plugged into the inside of the plug-in column, and a bolt for positioning the plug-in rod is installed on the side wall of the plug-in column.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the clamping device of the welding jig pipeline, the top of the receiving plate is set to a concave arc structure, and one end of the clamping plate is tilted toward the middle position of the upper side of the receiving plate, so that when the clamping plate clamps the pipeline, the connecting line of the receiving plate, the clamping plate and the contact position of the pipeline forms an acute triangle, so that the clamping plate squeezes the pipeline downward, the receiving plate supports the pipeline, and the pipeline is stably clamped and fixed. When the pipeline is too long, the three-point clamping of the pipeline by the clamping member can stably clamp the pipeline, thereby improving the stability of the pipeline clamping and ensuring the stability of the pipeline during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the workbench structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the clamping member of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the receiving mechanism of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0020] Figure 6 The utility model is a schematic diagram of the structure of the clamping piece clamping the pipeline.

[0021] The meaning of each number in the figure is:

[0022] 1. Workbench; 11. Placement table; 12. Plug-in column;

[0023] 2. Clamping parts;

[0024] 21. receiving mechanism; 211. plug-in rod; 212. mounting block; 213. receiving plate; 214. sliding groove; 215. baffle;

[0025] 22. Clamping mechanism; 221. Clamping plate; 222. Sliding block; 223. Nut; 224. Rotating column; 225. Threaded rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] Example 1

[0029] See also Figure 1-Figure 6As shown, this embodiment provides a clamping device for a welding jig pipeline, including a workbench 1, a clamping member 2 is arranged on one side of the workbench 1, the clamping member 2 clamps the hydraulic pipeline, and the pipeline is stably clamped by the clamping member 2. In order to avoid displacement of the pipeline during the process of the clamping member 2 clamping the pipeline when the length of the pipeline is too long, the improvement of this embodiment is that the clamping member 2 includes a receiving mechanism 21 and a clamping mechanism 22 arranged on the upper side of the receiving mechanism 21, the receiving mechanism 21 receives the pipeline, and the clamping mechanism 22 clamps and fixes the pipeline arranged on the receiving mechanism 21, and the clamping mechanism 22 clamps and fixes the pipeline The receiving mechanism 21 receives the pipeline so that the pipeline is clamped and fixed on the clamping member 2, ensuring that the pipeline will not be displaced during the welding process. At the same time, in order to enhance the effect of the clamping member 2 on the pipeline, the structures of the receiving mechanism 21 and the clamping mechanism 22 are refined, so that in the process of the clamping mechanism 22 clamping the pipeline on the upper side of the receiving mechanism 21, the connecting line of the contact positions of the clamping mechanism 22, the receiving mechanism 21 and the pipeline forms an acute triangle. The acute triangle formed at the contact position causes the clamping mechanism 22 to press the pipeline downward, while the receiving mechanism 21 receives the pipeline upward, ensuring that one end of the pipeline will not move when the length of the pipeline is too long.

[0030] Please refer to Figure 1-Figure 6 As shown, the structures of the receiving mechanism 21 and the clamping mechanism 22 are refined, wherein the receiving mechanism 21 includes a plug rod 211 and a mounting block 212 fixed to the top of the plug rod 211, a receiving plate 213 is fixed to the top of the mounting block 212, and the receiving plate 213 receives the pipeline, and the upper side of the receiving plate 213 is a concave arc structure. When the pipeline is placed on the receiving plate 213, the concave arc of the receiving plate 213 makes it easy for the pipeline to move to the middle position of the receiving plate 213, and then cooperates with the clamping mechanism 22 to clamp the pipeline, so that the pipeline is fixed by the clamping member 2, and at the same time, the clamping mechanism 22 includes two clamping plates 213 arranged opposite to each other. 21, the clamping plate 221 is arc-shaped, and the two clamping plates 221 are arranged on the upper side of the receiving plate 213 near the two ends, and the upper ends of the two receiving plates 213 are inclined toward the middle position of the upper side of the receiving plate 213, that is, the two clamping plates 221 move towards each other close to each other at one end away from the receiving plate 213, so that the two clamping plates 221 and the receiving plate 213 are combined to form a triangle, so as to facilitate the fixing of the clamping plates 221 and the receiving plate 213 to the pipeline. At the same time, the clamping plate 221 is set to an arc-shaped structure, and the inner arc surface is close to the center position of the receiving plate 213. When the clamping plate 221 clamps the pipeline, the pipeline will not move easily.

[0031] A plurality of sliding blocks 222 are fixed on the lower side of the clamping plate 221, and a plurality of sliding grooves 214 are symmetrically provided on the receiving plate 213. The sliding blocks 222 are slidably arranged inside the sliding grooves 214, and the clamping plate 221 is driven to move stably on the receiving plate 213 by the sliding blocks 222. Baffle plates 215 are screwed to both ends of the receiving plate 213, and the baffle plates 215 block one side of the receiving plate 213 so that the baffle plates 215 block one end of the sliding groove 214 to prevent the sliding blocks 222 from disengaging from the sliding groove 214 during the sliding process in the sliding groove 214. In order to make the two clamping plates 221 approach each other, a rotating column 224 is rotatably arranged on the mounting block 212, and a driving structure for driving the rotating column 224 to rotate is arranged on one side of the rotating column 224. The driving structure includes a drive structure installed on the mounting block 212. The motor on one side of the mounting block 212 and the gears installed on the motor shaft and the rotating column 224 are meshed with each other. The motor drives the two gears to rotate, so that the rotating column 224 rotates inside the mounting block 212. At the same time, threaded rods 225 are fixed at both ends of the rotating column 224. Nuts 223 are fixed on the lower sides of several sliding blocks 222 fixed on the clamping plate 221 through connecting rods. The threaded rod 225 and the nut 223 are threadedly connected, and one end of the threaded rod 225 is rotatably set on the baffle 215. When the driving structure drives the rotating column 224 to rotate, the threaded cooperation of the threaded rod 225 and the nut 223 makes the two clamping plates 221 move closer to or away from each other, so that the two clamping plates 221 can clamp or loosen the pipeline, which is convenient for workers to place and remove the pipeline.

[0032] When the two clamping plates 221 move towards each other, the inner arc surface of the clamping plate 221 contacts the pipeline, and the clamping plate 221 pushes the pipeline to move toward the middle position of the receiving plate 213. When the two clamping plates 221 contact the pipeline, the two clamping plates 221 press down the pipeline through the inclined arc surface of the clamping plates 221, and the receiving plate 213 receives the pipeline, thereby clamping the pipeline. At the same time, when the clamping plates 221 clamp the pipeline, the clamping plates 221 squeeze the pipeline downward, and the receiving plate 213 receives the pipeline, so that the connecting line of the receiving plate 213, the clamping plate 221 and the contact position of the pipeline forms an acute triangle, that is, Figure 6 The triangle shown by the dotted line in the middle, and the arc-shaped clamping plate 221 will prevent the clamped position of the pipeline from moving up, thereby stably clamping the pipeline. At the same time, the contact position between the clamping plate 221 and the receiving plate 213 and the pipeline is a line contact. When the clamping member 2 clamps the pipeline, the contact position is an acute triangle, and the contact between the pipeline and the clamping member 2 is a line contact, which further improves the stability of the pipeline being clamped by the clamping member 2, ensures that the pipeline will not move during the welding process, and improves the accuracy of pipeline welding.

[0033] At the same time, when the clamping member 2 clamps the pipeline, there will be pipelines of different sizes. In order to enable the clamping member 2 to clamp the pipeline of smaller size, corresponding tooth grooves are opened on the two clamping plates 221. When the two clamping plates 221 approach each other, the two clamping plates 221 are staggered together. When the two clamping plates 221 are staggered together, the triangle formed between the two clamping plates 221 and the receiving plate 213 will become smaller, so that the clamping member 2 can clamp pipelines of different sizes, thereby increasing the range of the clamping member 2 to clamp the pipeline.

[0034] The workbench 1 includes a placing table 11, and a plug-in column 12 is fixed on one side of the placing table 11. One end of the plug-in rod 211 is slidably plugged into the inside of the plug-in column 12, and a bolt for positioning the plug-in rod 211 is installed on the side wall of the plug-in column 12. When the user needs to clamp the pipeline, the user can adjust the height of the clamping member 2 according to his or her own height. When adjusting, the plug-in rod 211 is pulled up, and when the plug-in rod 211 is pulled up to a height suitable for the user's work, the bolt is tightened to fix the position of the plug-in rod 211, and then the pipeline is clamped by the clamping member 2 so that the pipeline is clamped and fixed, and then the user can perform welding operations on the pipeline.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A clamping device for a welding jig pipeline, comprising a workbench (1), a clamping member (2) being arranged on one side of the workbench (1), the clamping member (2) clamping the hydraulic pipeline, characterized in that: The clamping member (2) comprises a receiving mechanism (21) and a clamping mechanism (22) arranged on the upper side of the receiving mechanism (21); the receiving mechanism (21) receives the pipeline, and the clamping mechanism (22) clamps and fixes the pipeline arranged on the receiving mechanism (21); and when the clamping mechanism (22) clamps the pipeline on the upper side of the receiving mechanism (21), the connecting line of the positions where the clamping mechanism (22), the receiving mechanism (21) and the pipeline are in contact forms an acute triangle.

2. The welding jig pipeline clamping device according to claim 1 is characterized in that: The receiving mechanism (21) comprises a plug-in rod (211) and a mounting block (212) fixed on the top of the plug-in rod (211); a receiving plate (213) is fixed on the top of the mounting block (212); the upper side of the receiving plate (213) is a concave arc structure, and the receiving plate (213) receives the pipeline.

3. The clamping device for welding jig pipeline according to claim 2 is characterized in that: The clamping mechanism (22) comprises two clamping plates (221) arranged opposite to each other, the clamping plates (221) are arc-shaped, and the two clamping plates (221) are arranged on the upper side of the receiving plate (213) near the two ends, and the upper ends of the two receiving plates (213) are inclined toward the middle position of the upper side of the receiving plate (213).

4. The welding jig pipeline clamping device according to claim 3 is characterized in that: A plurality of sliding blocks (222) are fixed to the lower side of the clamping plate (221), a plurality of sliding grooves (214) are symmetrically provided on the receiving plate (213), and the sliding blocks (222) are slidably arranged inside the sliding grooves (214).

5. The welding jig pipeline clamping device according to claim 4, characterized in that: A rotating column (224) is rotatably arranged on the mounting block (212), a driving structure for driving the rotating column (224) to rotate is arranged on one side of the rotating column (224), threaded rods (225) are fixed at both ends of the rotating column (224), nuts (223) are fixed at the lower sides of a plurality of sliding blocks (222) fixed on the clamping plate (221) via connecting rods, and the threaded rods (225) and nuts (223) are threadedly connected.

6. The welding jig pipeline clamping device according to claim 5, characterized in that: The two ends of the receiving plate (213) are screw-connected to a baffle (215), and one end of the threaded rod (225) is rotatably disposed on the baffle (215).

7. The welding jig pipeline clamping device according to claim 3 is characterized in that: The two clamping plates (221) are provided with corresponding tooth grooves. When the two clamping plates (221) are approaching each other, the two clamping plates (221) are staggered together. When the clamping plates (221) clamp the pipeline, the clamping plates (221) press the pipeline downward, and the receiving plate (213) receives the pipeline, so that the connecting line of the receiving plate (213), the clamping plate (221) and the contact position of the pipeline forms an acute triangle.

8. The welding jig pipeline clamping device according to claim 2, characterized in that: The workbench (1) comprises a placement table (11), a plug-in column (12) is fixed on one side of the placement table (11), one end of the plug-in rod (211) is slidably plugged into the inside of the plug-in column (12), and a bolt for positioning the plug-in rod (211) is installed on the side wall of the plug-in column (12).

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