Pipe welding fixing clamp

Abstract

The utility model provides a pipe welding fixing clamp, and belongs to the technical field of tool clamps. The fixing clamp solves the problems that an existing fixing clamp with the position of a clamping part fixed is not high in flexibility, not suitable for pipes of various sizes and the like. The clamping device comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are each provided with a clamping part used for clamping a workpiece and an installation part used for adjusting the clamping angle, and one ends of the installation parts of the first clamping piece and the second clamping piece are rotationally connected through a rotating shaft to achieve opening and closing adjustment of the angle. A plurality of mounting holes I for mounting a rotating shaft are formed in the mounting part of the clamping piece I, a plurality of mounting holes II for mounting the rotating shaft are formed in the mounting part of the clamping piece II, and any one mounting hole I can be combined with any one mounting hole II to be connected with the rotating shaft. The utility model has the advantages that the position of the clamping part relative to the rotating shaft can be changed through any combination of different positions of the mounting hole I and the mounting hole II, so as to adapt to welding and mounting of pipes with different lengths.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, and relates to a pipe welding fixing clamp. Background Technology

[0002] Welding clamps are used to position and fix workpieces to be welded, ensuring welding accuracy and improving work efficiency. To meet different welding requirements, two clamps are used in combination, and the two clamps can rotate relative to each other, allowing two workpieces mounted on the two clamps to be welded at a certain angle.

[0003] However, this type of adjustable-angle clamp has the following disadvantages: The clamp has a holding part for clamping the workpiece. Since the position and size of the holding part are fixed relative to the rotating shaft, when welding pipes, if the pipe is too long, the holding part can only clamp the end of the pipe. If the other end collides during welding, it will cause the clamp and pipe to shift, resulting in a welding position deviation. If the pipe is too short, only part of the holding part can clamp the pipe, resulting in insufficient clamping force. This type of clamp with a fixed holding part is not very flexible and cannot be used for pipes of various sizes. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems with existing pipe clamps by proposing a clamping clamp with a variable position of the clamping part relative to the pivot.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A pipe welding clamp includes a clamping component one and a clamping component two. Both clamping components one and two are provided with a clamping part for clamping a workpiece and a mounting part for adjusting the clamping angle. One end of the mounting part of both is rotatably connected by a rotating shaft to achieve angle adjustment. The clamping component one has a plurality of mounting holes one for mounting the rotating shaft on its mounting part, and the clamping component two has a plurality of mounting holes two for mounting the rotating shaft on its mounting part. Any mounting hole one can be combined with any mounting hole two to connect with the rotating shaft.

[0007] In the aforementioned pipe welding clamp, the clamping part includes a backing plate, a screw, and a mounting sleeve. The mounting sleeve is fixed relative to the backing plate, and the screw is threaded onto the mounting sleeve. Rotating the screw allows it to move closer to or further away from the backing plate, thereby pressing the workpiece against the backing plate.

[0008] In the aforementioned pipe welding clamp, the mounting sleeve is fixedly connected to the backing plate via a connecting rod.

[0009] In the aforementioned pipe welding clamp, a pressure block is fixed at the end of the screw near the backing plate, and a handle is fixed at the end of the screw away from the backing plate.

[0010] In the aforementioned pipe welding clamp, the mounting part, the backing plate, the mounting sleeve, and the connecting rod are an integral structure.

[0011] In the above-mentioned pipe welding fixing clamp, the first mounting hole is a through hole that runs vertically through the shaft, the second mounting hole is a threaded hole, and the rotating shaft passes through the through hole on the first clamping member and is screwed into the threaded hole on the second clamping member.

[0012] In the aforementioned pipe welding fixing clamp, the backing plate has two parallel abutment portions spaced vertically, each abutment portion having a parallel abutment surface one, and the two abutment portions having a chamfer facing opposite sides, with an inclined abutment surface two formed on the two chamfers.

[0013] In the aforementioned pipe welding clamp, the cross-section of the backing plate is U-shaped, and the two ends of the U-shaped opening form the aforementioned two abutment portions.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The rotating shaft of this utility model can be inserted into any one of the mounting holes 1 and any one of the mounting holes 2. Any combination of different positions can change the position of the clamping part relative to the rotating shaft, thereby adapting to the welding and installation of pipes of different lengths.

[0016] 2. The two parallel abutment surfaces on the backing plate can be used to abut against flat workpieces such as square tubes, while the two inclined abutment surfaces on the backing plate can be used to abut against curved surfaces such as round tubes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the fixing clip of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the clamping component of this utility model;

[0019] Figure 3 This is an enlarged schematic diagram of the backrest of this utility model;

[0020] Figure 4 This is a schematic diagram of two workpieces being horizontally welded;

[0021] Figure 5 This is a schematic diagram of two workpieces welded at a certain angle;

[0022] Figure 6 This is a schematic diagram of the workpiece welding after the shaft position has been changed.

[0023] In the diagram, 1. Clamping component one; 2. Clamping component two; 3. Mounting part; 4. Rotating shaft; 5. Mounting hole one; 6. Mounting hole two; 7. Backing plate; 8. Screw; 9. Mounting sleeve; 10. Connecting rod; 11. Pressure block; 12. Handle; 13. Abutting surface one; 14. Abutting surface two; 15. Workpiece. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] like Figure 1 As shown, the pipe welding fixing clamp of this utility model includes a clamping component 1 and a clamping component 2. Both the clamping component 1 and the clamping component 2 are provided with a clamping part for clamping a workpiece 15 and a mounting part 3 for adjusting the clamping angle. One end of the mounting part 3 of both components is rotatably connected by a rotating shaft 4 to achieve angle adjustment. Figure 4 As shown, the most common welding method is to weld two pipes in parallel, in which case the included angle between clamp 1 and clamp 2 is 90°.

[0026] The mounting portion 3 of clamping member 1 has several mounting holes 5 for mounting the rotating shaft 4, and the mounting portion 3 of clamping member 2 has several mounting holes 6 for mounting the rotating shaft 4. Any mounting hole 5 can be combined with any mounting hole 6 to connect with the rotating shaft 4. The mounting hole 5 is a through hole extending vertically, and the mounting hole 6 is a threaded hole. The rotating shaft 4 passes through the through hole on clamping member 1 and is screwed into the threaded hole on clamping member 2.

[0027] like Figure 2 As shown, the clamping part includes a backing plate 7, a screw 8, and a mounting sleeve 9. The mounting sleeve 9 is fixed relative to the backing plate 7. The screw 8 is threadedly connected to the mounting sleeve 9. Rotating the screw 8 allows it to move closer to or away from the backing plate 7, thus pressing the workpiece 15 against the backing plate 7. The mounting sleeve 9 is fixedly connected to the backing plate 7 via a connecting rod 10. A pressure block 11 is fixedly provided at the end of the screw 8 near the backing plate 7, and a handle 12 is fixedly provided at the end of the screw 8 away from the backing plate 7. The mounting part 3, the backing plate 7, the mounting sleeve 9, and the connecting rod 10 are an integral structure.

[0028] like Figure 3 As shown, the backing plate 7 has two parallel abutment portions spaced vertically, each with a parallel abutment surface 13. The two abutment portions have chamfers facing opposite sides, forming inclined abutment surfaces 14 on the chamfers. The backing plate 7 has a U-shaped cross-section, with the two ends of the U-shaped opening forming the aforementioned two abutment portions.

[0029] like Figure 5As shown, when the pipe is long, the rotating shaft 4 can be inserted into the outermost mounting hole 5 and mounting hole 6. At this time, the rotating shaft 4 is furthest from the position of the clamping part, and the position of the clamping part is in a relatively central position relative to the workpiece 15, making the clamping more stable and reducing shaking.

[0030] like Figure 6 As shown, when the pipe is short, the rotating shaft 4 can be inserted into the innermost mounting hole 5 and mounting hole 6. At this time, the rotating shaft 4 is closest to the position of the clamping part, and the clamping part can completely clamp the workpiece 15, making the clamping more stable and reducing shaking.

[0031] Similarly, if short pipes are used Figure 5 When the fixing clamp is used, only part of the clamping part can clamp the workpiece 15, resulting in unstable clamping; similarly, if a long pipe is used... Figure 6 When the clamping device is used for fixing, the clamping part is clamped to the end of the workpiece 15, and the clamping is not stable.

[0032] If it is necessary to weld two pipes of different lengths, the mounting holes 1-5 and 2-6 at the corresponding positions can be selected according to the actual length of the pipes to make the position of the clamping part as close as possible to the center of the workpiece 15, so as to make the clamping more stable and reduce shaking.

[0033] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0034] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A pipe welding clamp, comprising a clamping member one (1) and a clamping member two (2), wherein both the clamping member one (1) and the clamping member two (2) are provided with a clamping part for clamping a workpiece (15) and a mounting part (3) for adjusting the clamping angle, and one end of the mounting part (3) of both is rotatably connected by a rotating shaft (4) to realize the opening and closing adjustment of the angle; characterized in that, The mounting part (3) of the clamping member one (1) is provided with a plurality of mounting holes one (5) for mounting the rotating shaft (4), and the mounting part (3) of the clamping member two (2) is provided with a plurality of mounting holes two (6) for mounting the rotating shaft (4). Any mounting hole one (5) can be combined with any mounting hole two (6) to connect with the rotating shaft (4).

2. The pipe welding fixing clamp according to claim 1, characterized in that, The clamping part includes a backing plate (7), a screw (8), and a mounting sleeve (9). The mounting sleeve (9) is fixed relative to the backing plate (7). The screw (8) is threaded onto the mounting sleeve (9). Rotating the screw (8) allows it to move closer to or further away from the backing plate (7) to press the workpiece (15) against the backing plate (7).

3. A pipe welding fixing clamp according to claim 2, characterized in that, The mounting sleeve (9) is fixedly connected to the back plate (7) by a connecting rod (10).

4. A pipe welding fixing clamp according to claim 2, characterized in that, A pressure block (11) is fixed at one end of the screw (8) near the back plate (7), and a handle (12) is fixed at the other end of the screw (8) away from the back plate (7).

5. A pipe welding fixing clamp according to claim 3, characterized in that, The mounting part (3), backing plate (7), mounting sleeve (9), and connecting rod (10) are an integrated structure.

6. A pipe welding fixing clamp according to claim 1, characterized in that, The first mounting hole (5) is a through hole that runs vertically through the shaft, and the second mounting hole (6) is a threaded hole. The rotating shaft (4) passes through the through hole on the first clamping member (1) and is screwed into the threaded hole on the second clamping member (2).

7. A pipe welding fixing clamp according to claim 2, characterized in that, The backing plate (7) has two parallel abutting parts, and the two abutting parts have parallel abutting surfaces (13). The two abutting parts are chamfered to the opposite side, and inclined abutting surfaces (14) are formed on the two chamfers.

8. A pipe welding fixing clamp according to claim 7, characterized in that, The cross-section of the backing plate (7) is U-shaped, and the two ends of the U-shaped opening form the two abutment parts mentioned above.

Images