A clamping device for welding

Abstract

This utility model relates to a welding clamping device, including a base, a base plate, a drive unit, a turntable, and an electric gripper. A pair of first connecting blocks and a pair of second connecting blocks are respectively arranged on the upper surface of the base, near the center on both sides. One side of the base plate is rotatably connected between the two second connecting blocks. One end of the drive unit is rotatably connected between the two first connecting blocks, and the other end of the drive unit is rotatably connected to the side of the base plate away from the second connecting blocks. The turntable is rotatably connected to the center of the upper surface of the base plate, and the electric gripper is fixedly connected to the center of the upper surface of the turntable. This utility model converts the linear movement of a hydraulic push rod into a change in the tilt angle of the base, achieving fine adjustment of the tilt angle of the electric gripper. It eliminates the need for other drive units to rotate or position the electric gripper, making it very convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of clamping device technology, specifically a clamping device for welding. Background Technology

[0002] During the welding process of castings, it is necessary to clamp the castings stably to ensure the accuracy and quality of the welding. The welding clamping device is a core auxiliary equipment used to fix the position of the workpiece during the welding process. It uses a mechanical structure to position and clamp the metal components to ensure that the workpiece maintains a stable posture during the welding operation.

[0003] Existing clamping devices typically employ a fixed base with unidirectional grippers, but they suffer from two major drawbacks: first, the clamping angle adjustment depends on the overall tilt of the device, lacking the ability to fine-tune local posture, resulting in poor weldability for complex welds; second, the workpiece rotation requires external drive equipment, making operation cumbersome and difficult to achieve precise positioning. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a welding clamping device to solve the problems of insufficient adjustment flexibility and low positioning efficiency of existing clamps.

[0005] This utility model discloses a welding clamping device, including a base, a base, a drive unit, a turntable, and an electric gripper. A pair of first connecting blocks and a pair of second connecting blocks are respectively arranged on the upper surface of the base near the center on both sides. One side of the base is rotatably connected between the two second connecting blocks. One end of the drive unit is rotatably connected between the two first connecting blocks, and the other end of the drive unit is rotatably connected to the side of the base away from the second connecting blocks. The turntable is rotatably connected to the center of the upper surface of the base, and the electric gripper is fixedly connected to the center of the upper surface of the turntable.

[0006] As a further improvement of this utility model, a first connecting rod and a second connecting rod are fixedly connected to both sides of the base, and a rotating shaft is fixedly connected to the middle of both ends of the second connecting rod. The two rotating shafts are rotatably connected to the inside of the two second connecting blocks.

[0007] As a further improvement of this utility model, the driving part includes a connecting shaft and a hydraulic push rod. The two ends of the connecting shaft are rotatably connected between the two first connecting blocks. The housing of the hydraulic push rod is fixedly connected to the connecting shaft, and the output end of the hydraulic push rod is rotatably connected to the first connecting rod.

[0008] As a further improvement of this utility model, a bearing is embedded and fixed in the center of the base, and a connecting column matching the bearing is fixedly connected to the center of the lower surface of the turntable, and the connecting column is fixedly connected to the inner ring of the bearing.

[0009] As a further improvement of this utility model, adjustment holes are provided at equal intervals in a ring around the center of the turntable at the edge of the upper surface of the turntable. A threaded hole is provided on the upper surface of the base at the position corresponding to the center of one of the adjustment holes. A quick-release screw is inserted and installed between the adjustment hole and the threaded hole.

[0010] As a further improvement of this utility model, waist-shaped holes are provided around the upper surface of the base.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention converts the linear motion of a hydraulic push rod into a change in the tilt angle of the base, enabling fine-tuning of the tilt angle of the electric gripper to meet processing requirements. The bearings on the base, along with the connecting column at the bottom of the turntable and the inner ring of the bearings, allow operators to adjust the direction of the electric gripper by rotating the turntable. Adjustment holes on the turntable and threaded holes on the base allow the turntable's position to be fixed using quick-release screws, eliminating the need for other drive mechanisms to rotate or position the electric gripper, making operation extremely convenient. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a front cross-sectional view of the base, turntable, and pneumatic gripper of this utility model after they are connected. Figure 3 This is a schematic diagram of the overall formal structure of this utility model.

[0013] In the diagram: 1. Base; 2. First connecting block; 3. Second connecting block; 4. Waist-shaped hole; 5. Connecting shaft; 6. Hydraulic push rod; 7. Base; 701. Threaded hole; 8. First connecting rod; 9. Second connecting rod; 10. Rotating shaft; 11. Bearing; 12. Turntable; 13. Connecting column; 14. Adjusting hole; 15. Electric gripper; 16. Quick-release screw. Detailed Implementation

[0014] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0015] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0016] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" 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 technology based on the specific circumstances.

[0017] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0018] Please see Figure 1-3 This utility model discloses a welding clamping device, including a base 1, a base 7, a drive unit, a turntable 12, and an electric gripper 15. The base 1 has waist-shaped holes 4 around its upper surface. A pair of first connecting blocks 2 and a pair of second connecting blocks 3 are respectively arranged on the upper surface of the base 1 near the center on both sides. One side of the base 7 is rotatably connected between the two second connecting blocks 3. One end of the drive unit is rotatably connected between the two first connecting blocks 2, and the other end of the drive unit is rotatably connected to the side of the base 7 away from the second connecting blocks 3. The turntable 12 is rotatably connected to the center of the upper surface of the base 7, and the electric gripper 15 is fixedly connected to the center of the upper surface of the turntable 12.

[0019] In this embodiment, a first connecting rod 8 and a second connecting rod 9 are fixedly connected to both sides of the base 7, and a rotating shaft 10 is fixedly connected to the middle of both ends of the second connecting rod 9. The two rotating shafts 10 are rotatably connected to the inside of the two second connecting blocks 3. The driving part includes a connecting shaft 5 and a hydraulic push rod 6. The two ends of the connecting shaft 5 are rotatably connected between the two first connecting blocks 2. The outer shell of the hydraulic push rod 6 is fixedly connected to the connecting shaft 5, and the output end of the hydraulic push rod 6 is rotatably connected to the first connecting rod 8.

[0020] Through the above technical solution, the operator can control the extension and retraction of the output end of the hydraulic push rod 6, and through the cooperation of the connecting shaft 5 and the hydraulic push rod 6, achieve adjustable thrust transmission and fine adjustment of the tilt angle of the electric gripper 15.

[0021] In this embodiment, a bearing 11 is fixedly embedded in the center of the base 7, and a connecting post 13 matching the bearing 11 is fixedly connected to the center of the lower surface of the turntable 12. The connecting post 13 is fixedly connected to the inner ring of the bearing 11.

[0022] Through the above technical solution, the turntable 12 can rotate smoothly above the base 7, thereby driving the electric gripper 15 to rotate together, realizing the circumferential adjustment of the electric gripper 15.

[0023] In summary, this device achieves multi-degree-of-freedom positioning of the workpiece. The drive unit pushes the base 7 to rotate around the second connecting block 3 to achieve elevation angle adjustment, the turntable 12 rotates to achieve circumferential positioning, and the electric gripper 15 completes the workpiece clamping. The three work together to enable the workpiece to reach the optimal welding posture. Compared with a fixed clamping device, this solution significantly improves the flexibility of workpiece position adjustment and the ease of operation, and is particularly suitable for multi-angle welding operations of irregularly shaped workpieces.

[0024] In some other embodiments, adjustment holes 14 are provided at equal intervals in a ring around the center of the turntable 12 at the edge of the upper surface of the turntable 12. A threaded hole 701 is provided on the upper surface of the base 7 at the position corresponding to the center of one of the adjustment holes 14. A quick-release screw 16 is inserted and installed between the adjustment hole 14 and the threaded hole 701.

[0025] By using a threaded hole 701 on the upper surface of the base 7, and in conjunction with multiple adjustment holes 14 on the turntable 12, the turntable 12 can be fixed to the upper surface of the base 7 after rotation by a quick-release screw 16. This prevents changes in the circumferential angle of the turntable 12 during processing and ensures stability during the processing. The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A clamping device for welding, characterized in that, include A base (1) is provided with a pair of first connecting blocks (2) and a pair of second connecting blocks (3) on the upper surface of the base (1) and near the center on both sides. The base (7) is rotatably connected on one side between the two second connecting blocks (3). The driving unit has one end rotatably connected between the two first connecting blocks (2) and the other end rotatably connected to the side of the base (7) away from the second connecting block (3). Turntable (12), which is rotatably connected to the center of the upper surface of the base (7); Electric gripper (15), which is fixedly connected to the center of the upper surface of turntable (12).

2. The welding clamping device according to claim 1, characterized in that, The base (7) is fixedly connected to the first connecting rod (8) and the second connecting rod (9) on both sides respectively. The middle of both ends of the second connecting rod (9) is fixedly connected to the rotating shaft (10). The two rotating shafts (10) are rotatably connected to the inside of the two second connecting blocks (3).

3. A welding fixture as claimed in claim 2, wherein The drive unit includes a connecting shaft (5) and a hydraulic push rod (6). The two ends of the connecting shaft (5) are rotatably connected between the two first connecting blocks (2). The outer shell of the hydraulic push rod (6) is fixedly connected to the connecting shaft (5). The output end of the hydraulic push rod (6) is rotatably connected to the first connecting rod (8).

4. The welding fixture of claim 1, wherein A bearing (11) is fixedly embedded in the center of the base (7), and a connecting column (13) matching the bearing (11) is fixedly connected to the center of the lower surface of the turntable (12). The connecting column (13) is fixedly connected to the inner ring of the bearing (11).

5. The welding fixture of claim 1, wherein, Adjustment holes (14) are provided at equal intervals in a ring around the center of the turntable (12) at the edge of the upper surface of the turntable (12). A threaded hole (701) is provided on the upper surface of the base (7) at the position corresponding to the center of one of the adjustment holes (14). A quick-release screw (16) is inserted between the adjustment hole (14) and the threaded hole (701).

6. The welding fixture of claim 1, wherein The base (1) has waist-shaped holes (4) on all four sides of its upper surface.

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