Elbow machining clamping tool convenient to adjust

Abstract

The utility model discloses an elbow machining clamping tool convenient to adjust, and relates to the technical field of elbow clamping tools, the elbow machining clamping tool convenient to adjust comprises a bottom plate, an adjusting mechanism is arranged above the bottom plate, the adjusting mechanism comprises two connecting blocks, one end of each connecting block is fixedly provided with a rotating rod in a penetrating mode, and the other end of each connecting block is provided with a rotating shaft. The rotating rod is fixedly sleeved with a first ratchet wheel, the end, away from the first ratchet wheel, of the rotating rod is movably sleeved with a second ratchet wheel, the rotating rod is movably sleeved with a spring, and the spring is fixedly connected to the second ratchet wheel. The first ratchet wheel is always in contact with the inclined surface of the second ratchet wheel in the rotating process, so that the angle of the connecting block is adjusted, meanwhile, one end of the elbow is kept parallel to the bottom plate through cooperation with the supporting plate, and therefore the situation that the welding precision is reduced due to the fact that the elbow inclines when a flange plate is welded is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow clamping tooling, in particular to a clamping tooling for elbow processing which is easy to adjust. Background Art

[0002] In the piping system, elbows are fittings used to change the direction of the pipeline. The most commonly used elbow angles are 45 degrees, 90 degrees and 180 degrees. In addition, other abnormal elbow angles such as 60 degrees are also included according to project needs. The materials of elbows include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics.

[0003] When the elbow is connected to the pipe fitting, in order to ensure the sealing of the pipe fitting during use and the convenience of subsequent maintenance, it is usually necessary to weld flanges at both ends of the elbow, and the elbow needs to be fixed while welding the flanges.

[0004] However, the existing clamping device can only clamp and fix elbows at the same angle, which brings inconvenience to the staff's operation and reduces the compatibility of the clamping device. In addition, when the elbow is welded to the flange, it cannot be placed horizontally due to the bending characteristics of the elbow itself, which easily causes the elbow to tilt toward the bent end during the welding process, making it difficult to align with the flange, thereby affecting the welding accuracy and reducing the sealing and stability between the pipeline systems.

[0005] Therefore, it is necessary to propose a clamping tool for elbow processing that is easy to adjust to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a clamping tool for elbow processing that is easy to adjust, so as to solve the problem that the existing clamping device can only clamp and fix elbows at the same angle, which brings inconvenience to the operation of the staff and reduces the compatibility of the clamping device. In addition, when the elbow is welded to the flange, due to the bending characteristics of the elbow itself, it cannot be placed horizontally, which easily causes the elbow to tilt toward the bent end during the welding process, making it difficult to align with the flange, thereby affecting the welding accuracy and reducing the sealing and stability between the pipeline systems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping tool for elbow processing that is easy to adjust, comprising a base plate, an adjustment mechanism is arranged above the base plate, the adjustment mechanism comprises a connecting block, two connecting blocks are arranged, a rotating rod is fixedly penetrated at one end of the connecting block, a first ratchet is fixedly sleeved on the rotating rod, a second ratchet is movable sleeved on the end of the rotating rod away from the first ratchet, a spring is movable sleeved on the rotating rod, and the spring is fixedly connected to the second ratchet.

[0008] Preferably, support frames are fixedly installed on both sides of the top of the base plate, a rotation groove is opened on the top of the support frame, the rotation rod is rotatably connected in the corresponding rotation groove, and one end of the spring away from the second ratchet is fixedly connected to the inner wall of the rotation groove.

[0009] Preferably, connecting rods are fixedly installed on both sides of the outer wall of the second ratchet, the connecting rods are slidably connected to the support frame, and a baffle is fixedly installed between the two connecting rods.

[0010] Preferably, a threaded hole is opened on one side of the support frame, and a first threaded rod is threadedly connected in the threaded hole, and opposite ends of two first threaded rods are rotatably connected to clamping blocks, and the clamping blocks are in an arc-shaped structure, and the clamping blocks are slidably fitted on the bottom plate.

[0011] Preferably, a sliding groove is provided on one side opposite to the two connecting blocks, and a slider is slidably connected in the sliding groove, a support plate is fixedly installed between the two sliders, and an arc groove is provided on the top of the support plate.

[0012] Preferably, a second threaded rod is threadedly connected to the sliding block, the second threaded rod is rotatably connected to the inner wall of the sliding groove, one end of the second threaded rod is rotatably connected to the sliding groove, and the other end of the second threaded rod is movably inserted into the connecting block.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model adjusts the angle of the connection block by making the first ratchet always contact the inclined surface of the second ratchet during the rotation process. At the same time, by cooperating with the support plate, one end of the elbow is kept parallel to the bottom plate, thereby avoiding the elbow from tilting when welding the flange, resulting in reduced welding accuracy;

[0015] 2. The utility model achieves clamping and fixing of elbows of different specifications by having the clamping block attached to the surface of the elbow, thereby improving the compatibility of the clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic structural diagram of a one-view clamping tool for elbow processing which is easy to adjust.

[0017] Figure 2 This is a schematic structural diagram from another perspective of the clamping tooling for elbow processing that is easy to adjust according to the utility model.

[0018] Figure 3 This is a cross-sectional view of the adjustment mechanism structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the first ratchet, the second ratchet and the rotating rod of the utility model.

[0020] In the figure: 1, bottom plate; 2, support frame; 3, connecting block; 4, support plate; 5, first threaded rod; 6, clamping block; 7, second threaded rod; 8, slider; 9, rotating rod; 10, first ratchet; 11, second ratchet; 12, spring; 13, connecting rod; 14, baffle; 15, rotating groove. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides Figure 1-Figure 4 The clamping tool for elbow processing which is easy to adjust as shown comprises a base plate 1 , and support frames 2 are fixedly mounted on both sides of the top of the base plate 1 .

[0023] Furthermore, a threaded hole is opened on one side of the support frame 2, and a first threaded rod 5 is threadedly connected to the threaded hole. The opposite ends of the two first threaded rods 5 are rotatably connected to clamping blocks 6. The clamping blocks 6 are used to clamp the elbow so that the elbow remains parallel to the base plate 1. The clamping blocks 6 have an arc-shaped structure, which can better fit the surface of the tubular object. The clamping blocks 6 slide and fit on the base plate 1.

[0024] During operation, the first threaded rod 5 is rotated according to the diameter of the elbow, and is fitted to the surface of the elbow through the clamping block 6, so that elbows of different specifications can be clamped and fixed, thereby improving the compatibility of the clamping device.

[0025] Considering that when the elbow is welded to the flange, due to the bending characteristics of the elbow itself, it cannot be placed horizontally, which easily causes the elbow to tilt toward the bent end during the welding process, making it difficult to align with the flange, thereby affecting the welding accuracy. Therefore, an adjustment mechanism is provided above the base plate 1, and the adjustment mechanism includes a connecting block 3. Two connecting blocks 3 are provided, and a rotating rod 9 is fixedly penetrated at one end of the connecting block 3. A rotating groove 15 is provided on the top of the support frame 2, and the rotating rod 9 is rotatably connected in the corresponding rotating groove 15.

[0026] Furthermore, sliding grooves are provided on the opposite sides of the two connecting blocks 3, and a slider 8 is slidably connected in the sliding groove, and a second threaded rod 7 is threadedly connected to the slider 8. One end of the second threaded rod 7 is rotatably connected to the sliding groove, and the other end of the second threaded rod 7 is movably inserted into the connecting block 3.

[0027] Specifically, a support plate 4 is fixedly installed between the two sliders 8, and the support plate 4 is used to support one end of the elbow. An arc groove is opened on the top of the support plate 4, and the arc groove can fit well on the surface of the elbow.

[0028] During operation, the second threaded rod 7 is rotated to make the slider 8 slide on the second threaded rod 7, and the slider 8 drives the support plate 4 to move, and the inclined end of the elbow is supported by the support plate 4, so that the other end of the elbow is parallel to the bottom plate 1, thereby avoiding the elbow from tilting when welding the flange, resulting in reduced welding accuracy.

[0029] Considering that the existing clamping device can only clamp and fix the elbows at the same angle, which brings inconvenience to the operation of the staff, a first ratchet 10 is fixedly sleeved on the rotating rod 9, and a second ratchet 11 is movably sleeved on the end of the rotating rod 9 away from the first ratchet 10. A spring 12 is movably sleeved on the rotating rod 9, and the spring 12 is fixedly connected to the second ratchet 11. The spring 12 is used to reset the second ratchet 11 and limit the first ratchet 10. The end of the spring 12 away from the second ratchet 11 is fixedly connected to the inner wall of the rotating groove 15

[0030] Specifically, the first ratchet 10 cooperates with the second ratchet 11 to control the angle of the connecting block 3 .

[0031] Furthermore, connecting rods 13 are fixedly installed on both sides of the outer wall of the second ratchet 11, and the connecting rods 13 are used to limit the second ratchet 11 so that the second ratchet 11 can only slide laterally on the connecting rods 13. The connecting rods 13 are slidably connected to the support frame 2, and a baffle 14 is fixedly installed between the two connecting rods 13. The baffle 14 is used to limit the connecting rod 13 and subsequently reset the connecting block 3.

[0032] During specific operation, according to the bending angle of the elbow, the connecting block 3 is pushed to rotate toward one end of the elbow, so that the connecting block 3 rotates around the center of the rotating rod 9, and the rotating rod 9 drives the first ratchet 10 to rotate. The first ratchet 10 is always in contact with the inclined surface of the second ratchet 11 during the rotation process, and the spring 12 is continuously compressed and reset, thereby realizing the adjustment of the angle of the connecting block 3.

[0033] When the first ratchet 10 stops rotating, it is reset by the spring 12 , and the first ratchet 10 contacts the plane on the second ratchet 11 , so that the connecting block 3 is restricted, thereby achieving the limitation of the angle of the connecting block 3 .

[0034] It should be noted that for elbows with the same diameter, the arc lengths of the elbows are different at different angles. Therefore, the support plate 4 needs to be adjusted to keep one end of the elbow parallel to the bottom plate 1.

[0035] After the flanges are welded at both ends of the elbow, it is only necessary to pull the baffle 14 on the support frame 2 at the same time, and the baffle 14 drives the second ratchet 11 to compress the spring 12, so that the first ratchet 10 is separated from the second ratchet 11, and the connecting block 3 loses its restriction, thereby realizing the reset of the connecting block 3 and the support plate 4.

Claims

1. A clamping tool for elbow processing that is easy to adjust, comprising a base plate (1), characterized in that: An adjustment mechanism is arranged above the base plate (1), and the adjustment mechanism comprises a connecting block (3). Two connecting blocks (3) are arranged, and a rotating rod (9) is fixedly inserted through one end of the connecting block (3). A first ratchet (10) is fixedly sleeved on the rotating rod (9), and a second ratchet (11) is movably sleeved on one end of the rotating rod (9) away from the first ratchet (10). A spring (12) is movably sleeved on the rotating rod (9), and the spring (12) is fixedly connected to the second ratchet (11).

2. The clamping tool for elbow processing that is easy to adjust according to claim 1 is characterized in that: Support frames (2) are fixedly mounted on both sides of the top of the base plate (1), a rotation groove (15) is provided on the top of the support frame (2), the rotation rod (9) is rotationally connected in the corresponding rotation groove (15), and one end of the spring (12) away from the second ratchet (11) is fixedly connected to the inner wall of the rotation groove (15).

3. The clamping tool for elbow processing that is easy to adjust according to claim 1 is characterized in that: Connecting rods (13) are fixedly mounted on both sides of the outer wall of the second ratchet (11); the connecting rods (13) are slidably connected to the support frame (2); and a baffle (14) is fixedly mounted between the two connecting rods (13).

4. The clamping tool for elbow processing that is easy to adjust according to claim 2 is characterized in that: A threaded hole is provided on one side of the support frame (2), and a first threaded rod (5) is threadedly connected in the threaded hole. Two opposite ends of the two first threaded rods (5) are rotatably connected to clamping blocks (6), and the clamping blocks (6) are in an arc-shaped structure. The clamping blocks (6) are slidably fitted on the bottom plate (1).

5. The clamping tool for elbow processing that is easy to adjust according to claim 1 is characterized in that: A sliding groove is provided on one side opposite to the two connection blocks (3), and a slider (8) is slidably connected in the sliding groove. A support plate (4) is fixedly installed between the two sliders (8), and an arc groove is provided on the top of the support plate (4).

6. The clamping tool for elbow processing that is easy to adjust according to claim 5 is characterized in that: The slider (8) is threadedly connected with a second threaded rod (7), wherein the second threaded rod (7) The second threaded rod (7) is rotatably connected to the inner wall of the sliding groove, and one end of the second threaded rod (7) is rotatably connected to the sliding groove. The other end of the second threaded rod (7) is movably inserted into the connecting block (3).

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