A quick clamp for welding

Abstract

A kind of quick fixture for welding, including base plate, the base plate is provided with placing rack, for placing cross workpiece body, the front end of the placing rack is provided with baffle, the inside of the placing rack is provided with limiting slot with spring, the limiting slot is provided with clamping plate, the front and rear sides of the placing rack are provided with sliding slot, the sliding slot is provided with support frame, support frame is provided with chuck, for the center part of cross workpiece body is clamped, the base plate is provided with block, for the cross extension of cross workpiece body is supported, the block is provided with rotary down pressure cylinder, the rotary down pressure cylinder has chuck, for the cross extension of cross workpiece body is clamped;Through the coordinated action of linear cylinder, rotary cylinder and rotary down pressure cylinder, replace the mode of traditional artificial quick clamping one by one operation, greatly reduce the complexity of operation, in large quantities, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures, and in particular to a quick-release fixture for welding. Background Technology

[0002] Welding fixtures are tooling equipment used to accurately position and reliably clamp welding parts, facilitating assembly and welding, and ensuring the structural accuracy of the welded parts. Small and medium-sized enterprises actively use welding fixtures adapted to their product structures in welding production, which plays a very important role in improving product quality, reducing the labor intensity of workers, and accelerating the automation of welding production. When processing a cross-shaped welded part, multiple quick clamps need to be installed on the processing platform to hold the welded part. However, in actual use, multiple quick clamps need to be operated manually one by one, which is inefficient and cannot be coordinated. Due to the large output required, this method is inefficient. To solve the above problems, a quick fixture for welding is proposed. Utility Model Content

[0003] The purpose of this invention is to solve the problem that the existing cross-shaped welding parts processing requires manual operation of multiple quick clamps one by one, which is inefficient and cannot be coordinated.

[0004] The present invention adopts the following technical solution:

[0005] A quick-release clamp for welding includes a base plate, on which a placement rack is provided for placing a cross-shaped workpiece body. A baffle is provided at the front end of the placement rack. A limiting groove with a spring is provided inside the placement rack. A clamping plate is provided in the limiting groove. Sliding grooves are provided on both the front and rear sides of the placement rack. A support frame is provided in the sliding groove. A chuck is provided on the support frame for clamping the center part of the cross-shaped workpiece body. A support block is provided on the base plate for supporting the cross extension part of the cross-shaped workpiece body. A rotary pressing cylinder is provided next to the support block. A chuck is provided on the rotary pressing cylinder for clamping the cross extension part of the cross-shaped workpiece body.

[0006] Furthermore, the placement frame consists of two support plates and is fixed in the middle of the base plate to support the central part of the cross workpiece body. A limiting groove is provided between the two support plates. One end of the spring abuts against the end of the limiting groove near the baffle, and the other end is fixed to the clamping plate. The clamping plate is T-shaped, and the upper end of the clamping plate extends out of the limiting groove to cooperate with the baffle to clamp the central part of the cross workpiece body.

[0007] Furthermore, there are two sliding grooves, symmetrically arranged on the front and rear sides of the placement frame. A linear cylinder is arranged next to the sliding groove, and a guide rod is arranged inside the sliding groove. The support frame is sleeved on the guide rod. The output end of the linear cylinder is connected to the support frame. The upper part of the support frame has a slot, and a threaded rod is arranged in the slot through a bearing. A rotary cylinder is arranged at the upper end of the threaded rod to drive the threaded rod to rotate. A clamping plate is arranged in the slot of the support frame. The clamping plate is threadedly connected to the threaded rod. A chuck is arranged at the front end of the clamping plate through a bolt to clamp the front and rear sides of the center part of the cross workpiece body.

[0008] Furthermore, there are four support blocks, located at the four corners of the base plate, used to support the four extended parts of the cross workpiece body. There are four rotary pressing cylinders, each corresponding to one of the four support blocks. Each rotary pressing cylinder is equipped with a clamp by bolts, used to press the cross extension of the cross workpiece body against the support block.

[0009] The beneficial effects of this utility model are:

[0010] By using the coordinated action of linear cylinders, rotary cylinders, and rotary pressing cylinders, the traditional method of manually operating each clamp individually is replaced, greatly reducing the complexity of operation and improving work efficiency in mass production.

[0011] The combination of the limiting groove, baffle, and spring clamp of the placement rack achieves the pre-positioning and elastic pre-tightening of the center part of the workpiece. Combined with the linear drive and thread transmission of the sliding clamping mechanism for precise adjustment, and the support and clamping of the extension part by the support block and the rotating pressing cylinder, the workpiece's freedom is restricted in multiple dimensions, ensuring that the workpiece has no displacement or deformation during the welding process, and effectively improving the structural accuracy of the weldment.

[0012] By symmetrically distributing four rotary pressing cylinders, the block and the chuck make rigid contact, eliminating warping deformation of the extended part and improving the pass rate of welded workpieces.

[0013] The chuck is detachably connected by bolts, and the chuck can be replaced with a suitable one according to different specifications of cross workpieces, which is highly versatile and reduces the tooling investment cost for enterprises. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a quick-release clamp for welding according to a utility model.

[0015] Figure 2 This is a schematic diagram of the structure of a quick-release clamp for welding according to a utility model.

[0016] Figure 3 This is a partial structural diagram of a quick-release clamp for welding according to a utility model.

[0017] Figure 4 This is a partial structural schematic diagram of a quick-release clamp for welding according to a utility model.

[0018] In the diagram: 1. Base plate; 2. Placement rack; 3. Baffle; 4. Limiting groove; 5. Spring; 6. Clamping plate; 7. Linear cylinder; 8. Sliding groove; 9. Guide rod; 10. Support frame; 11. Rotary cylinder; 12. Threaded rod; 13. Clamping plate; 14. Chuck; 15. Rotary pressing cylinder; 16. Support block; 17. Cross-shaped workpiece body. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Example 1

[0023] This utility model provides a quick clamp for welding, including a base plate 1, a placement rack 2 on the base plate 1 for placing a cross workpiece body 17, a baffle 3 at the front end of the placement rack 2, a limiting groove 4 with a spring 5 inside the placement rack 2, a clamping plate 6 inside the limiting groove 4, sliding grooves 8 on both the front and rear sides of the placement rack 2, a support frame 10 inside the sliding groove 8, a clamp 14 on the support frame 10 for clamping the center part of the cross workpiece body 17, a support block 16 on the base plate 1 for supporting the cross extension part of the cross workpiece body 17, a rotary pressing cylinder 15 next to the support block 16, and a clamp 14 on the rotary pressing cylinder 15 for clamping the cross extension part of the cross workpiece body 17.

[0024] Furthermore, the placement frame 2 consists of two support plates and is fixed in the middle of the base plate 1 to support the central part of the cross workpiece body 17. A limiting groove 4 is provided between the two support plates. One end of the spring 5 abuts against the end of the limiting groove 4 near the baffle 3, and the other end is fixed to the clamping plate 6. The clamping plate 6 is T-shaped, and the upper end of the clamping plate 6 extends out of the limiting groove 4 to cooperate with the baffle 3 to clamp the central part of the cross workpiece body 17.

[0025] Furthermore, there are two sliding grooves 8, symmetrically arranged on the front and rear sides of the placement frame 2. A linear cylinder 7 is arranged next to the sliding groove 8, and a guide rod 9 is arranged inside the sliding groove 8. The support frame 10 is sleeved on the guide rod 9. The output end of the linear cylinder 7 is connected to the support frame 10. The upper part of the support frame 10 has a slot, and a threaded rod 12 is arranged in the slot through a bearing. A rotary cylinder 11 is arranged at the upper end of the threaded rod 12 to drive the threaded rod 12 to rotate. A clamping plate 13 is arranged in the slot of the support frame 10. The clamping plate 13 is threadedly connected to the threaded rod 12. A chuck 14 is arranged at the front end of the clamping plate 13 through a bolt to clamp the front and rear sides of the center part of the cross workpiece body 17.

[0026] Furthermore, there are four support blocks 16, located at the four corners of the base plate 1, for supporting the four extensions of the cross workpiece body 17. There are four rotary pressing cylinders 15, which correspond one-to-one with the four support blocks 16. The rotary pressing cylinders 15 are equipped with clamps 14 by bolts, for pressing the cross extensions of the cross workpiece body 17 against the support blocks 16.

[0027] Working principle:

[0028] In use, the T-shaped clamping plate 6 is pulled outward along the limiting groove 4 by the spring 5, and the center part of the cross workpiece body 17 is placed on the placement frame 2. The clamping plate 6, under the action of the spring 5, together with the baffle 3, clamps it to achieve initial fixation. The two linear cylinders 7 are controlled to extend simultaneously, driving the support frame 10 to move along the guide rod 9 in the sliding groove 8 towards the center part of the cross workpiece body 17, so that the chuck 14 is suspended directly above the edge of the center part of the cross workpiece body 17. The rotary cylinder 11 is controlled to drive the threaded rod 12 to rotate and move by an angle, thereby driving the clamping plate 13 to move downward, thereby driving the bolt-connected chuck 14 downward towards the cross workpiece body 17. The center part is clamped, and then one end of the four extension parts of the cross workpiece body 17 is placed on the center part, and the other end is placed on the support block 16. The four rotary pressing cylinders 15 are controlled to rotate and press down simultaneously. The cylinder piston rod first rotates 90 degrees so that the chuck 14 is aligned with the extension part, and then presses down in a straight line to press the extension part tightly against the support block 16. By adjusting the cylinder stroke, it can adapt to extension parts of different thicknesses. After complete clamping, welding is performed by a welding robot or manually. After welding is completed, the rotary pressing cylinder 15 first retracts and resets, the linear cylinder 7 drives the support frame 10 to retract, and the spring 5 pulls the clamping plate 6 to move, so that the workpiece can be removed.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-release clamp for welding, characterized in that, The system includes a base plate (1), on which a placement rack (2) is provided for placing a cross-shaped workpiece body (17). A baffle (3) is provided at the front end of the placement rack (2). A limiting groove (4) with a spring (5) is provided inside the placement rack (2). A clamping plate (6) is provided inside the limiting groove (4). Sliding grooves (8) are provided on both the front and rear sides of the placement rack (2). A support frame (10) is provided inside the sliding groove (8). A chuck (14) is provided on the support frame (10) for clamping the center part of the cross-shaped workpiece body (17). A support block (16) is provided on the base plate (1) for supporting the cross extension part of the cross-shaped workpiece body (17). A rotary pressing cylinder (15) is provided next to the support block (16). A chuck (14) is provided on the rotary pressing cylinder (15) for clamping the cross extension part of the cross-shaped workpiece body (17).

2. The quick-release clamp for welding according to claim 1, characterized in that, The placement frame (2) consists of two support plates and is fixed in the middle of the base plate (1) to support the central part of the cross workpiece body (17). A limiting groove (4) is provided between the two support plates. One end of the spring (5) abuts against the end of the limiting groove (4) near the baffle (3), and the other end is fixed to the clamping plate (6). The clamping plate (6) is T-shaped, and the upper end of the clamping plate (6) extends out of the limiting groove (4) to cooperate with the baffle (3) to clamp the central part of the cross workpiece body (17).

3. A quick-release clamp for welding according to claim 2, characterized in that, There are two sliding grooves (8), which are symmetrically arranged on the front and rear sides of the placement frame (2). A linear cylinder (7) is arranged next to the sliding groove (8). A guide rod (9) is arranged in the sliding groove (8). The support frame (10) is sleeved on the guide rod (9). The output end of the linear cylinder (7) is connected to the support frame (10). The upper part of the support frame (10) has a slot. A threaded rod (12) is arranged in the slot through a bearing. A rotary cylinder (11) is arranged at the upper end of the threaded rod (12) to drive the threaded rod (12) to rotate. A clamping plate (13) is arranged in the slot of the support frame (10). The clamping plate (13) is threadedly connected to the threaded rod (12). A chuck (14) is arranged at the front end of the clamping plate (13) through a bolt to clamp the front and rear sides of the center part of the cross workpiece body (17).

4. A quick-release clamp for welding according to claim 3, characterized in that, There are four support blocks (16), which are located at the four corners of the base plate (1) and are used to support the four extension parts of the cross workpiece body (17). There are four rotary pressing cylinders (15), which correspond one-to-one with the four support blocks (16). The rotary pressing cylinders (15) are equipped with clamps (14) by bolts, which are used to press the cross extension parts of the cross workpiece body (17) against the support blocks (16).

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