Welding fixture

Abstract

The utility model discloses a welding fixture which comprises a welding table, a first check block and a second check block are arranged on the welding table, the first check block and the second check block are used for blocking two adjacent side edges of a square workpiece respectively, and a first side pushing device and a second side pushing device are arranged on the opposite sides of the first check block and the second check block respectively. The first side pushing device and the second side pushing device are used for abutting against the square workpiece. A pressing device is further arranged on the welding table and comprises a transversely-arranged pressing arm, a pressing head arranged on the pressing arm, a rotating device used for driving the pressing arm to rotate and a lifting driving device used for driving the pressing arm to ascend and descend. By the adoption of the technical scheme, the welding clamp solves the problem that a workpiece moves in the vertical direction in the welding process by additionally arranging the pressing device capable of applying downward pressure, and stability and welding precision of the workpiece are improved.

Description

Technical Field

[0001] This utility model relates to a welding fixture, belonging to the field of welding tooling technology. Background Technology

[0002] When welding workpieces using welding robots, rapid clamping and positioning are crucial steps to ensure welding accuracy and efficiency. For mass production lines, rapid clamping and positioning means that multiple workpieces can be processed in a short time, greatly improving production efficiency and reducing equipment downtime. Furthermore, precise positioning is key to ensuring welding quality. Welding robots rely on the accurate position and orientation of the workpiece to perform welding tasks. Even slight deviations in the workpiece's clamping can affect the welding path and angle, leading to decreased welding quality, such as inconsistent welds or insufficient strength. Rapid clamping and positioning systems avoid this error by ensuring the precise repeatability of the workpiece's position. When welding square frame-shaped workpieces, the workpiece is placed on a horizontal welding platform. The fixture typically has stops on two perpendicular sides of the workpiece, while the other two sides are clamped by cylinders to secure it. This method applies clamping force to the workpiece in four directions (front, back, left, and right), while the bottom is supported by the welding platform. However, the lack of a clamping component at the top allows for upward movement in the vertical direction, causing positional deviations during welding and affecting welding accuracy. Utility Model Content

[0003] Therefore, the purpose of this invention is to provide a welding fixture that can apply downward pressure to a workpiece from above.

[0004] To achieve the above objectives, the present invention provides a welding fixture, including a welding station, on which a first stop and a second stop are provided. The first stop and the second stop are used to block two adjacent sides of a square workpiece, respectively. A first side-pushing device and a second side-pushing device are respectively provided on opposite sides of the first stop and the second stop, and the first side-pushing device and the second side-pushing device are used to press against the square workpiece, respectively. A clamping device is also provided on the welding station, the clamping device including a horizontally arranged clamping arm, a pressure head provided on the clamping arm, a rotating device for driving the clamping arm to rotate, and a lifting drive device for driving the clamping arm to rise and fall.

[0005] The rotating device includes a motor, and the clamping arm is connected to the power output end of the motor.

[0006] The lifting drive device is a downward pressure cylinder, and the motor is mounted on the downward pressure cylinder. The downward pressure cylinder can drive the motor to lift and lower.

[0007] The position of the pressure head on the clamping arm is adjustable.

[0008] A mounting groove is provided on the clamping arm, and a screw is provided on the pressure head. The screw passes through the mounting groove and is screwed to a locking nut.

[0009] The pressure head is a rubber pressure block.

[0010] The clamping device comprises multiple units.

[0011] The first side thrust device and the second side thrust device are side thrust cylinders, respectively.

[0012] The side walls of the first and second blocks are provided with anti-slip structures.

[0013] The anti-slip structure includes multiple anti-slip protrusions.

[0014] By adopting the above technical solution, the welding fixture of this utility model has the following beneficial effects:

[0015] 1. By adding a clamping device that can apply downward pressure, the problem of vertical movement of the workpiece during welding was solved, thus improving the stability of the workpiece and the welding accuracy.

[0016] 2. The clamping arm and adjustable pressure head design allow the clamping force to be adjusted according to different sizes or types of workpieces, ensuring that appropriate pressure is applied to the workpiece.

[0017] 3. By using multiple clamping devices and setting anti-slip structures on the side walls of the stop, the workpiece is effectively prevented from shifting during the welding process, further improving the clamping firmness.

[0018] 4. The side-push cylinder provides rapid clamping and release functions, which greatly improves production efficiency and is especially suitable for high-volume production lines.

[0019] These improvements in this invention not only enhance welding precision but also significantly increase production efficiency, thereby achieving higher quality welding results in mass production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram showing the state of the square workpiece after being clamped and fixed by the welding fixture of this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1 , 2As shown, a welding fixture of this utility model includes a welding station 1 and a stop block, a side-pushing device, and a clamping device disposed on the welding station 1. The stop block includes multiple first stop blocks 2 and multiple second stop blocks 3, which respectively block two adjacent sides of a square workpiece 10. The side-pushing device includes a first side-pushing device 4 and a second side-pushing device 5, which are respectively disposed on opposite sides of the first stop blocks 2 and 3, and are used to press against the square workpiece 10. In this embodiment, the side-pushing device is a side-pushing cylinder, which presses against the square workpiece 10, causing the square workpiece 10 to press against the stop block located on the other side. An anti-slip structure 6 is provided on the side wall of the stop block. In this embodiment, the anti-slip structure 6 includes multiple anti-slip protrusions, which can effectively prevent the workpiece 10 from sliding or shifting.

[0024] The clamping device 7 includes a laterally arranged clamping arm 71, a pressure head 72 mounted on the clamping arm 71, a rotating device for driving the clamping arm 71 to rotate, and a lifting drive device for driving the clamping arm 71 to rise and fall. A mounting groove 711 is provided on the clamping arm 71, and a screw 721 is provided on the pressure head 72. The screw 721 passes through the mounting groove 711 and is screwed to a locking nut 722, thereby making the position of the pressure head 72 on the clamping arm 71 adjustable to accommodate clamping workpieces 10 of different sizes. The pressure head 72 can be a rubber block.

[0025] In this embodiment, the rotating device includes a motor 73, and the clamping arm 71 is connected to the power output end of the motor 73. The lifting drive device is a pressing cylinder 74, and the motor 73 is mounted on the pressing cylinder 74, which can drive the motor 73 to lift and lower.

[0026] There can be multiple clamping devices. In this embodiment, there are four clamping devices, which can clamp the workpiece 10 on the four sides respectively.

[0027] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A welding fixture, characterized in that: The device includes a welding station with a first stop and a second stop, which respectively block two adjacent sides of a square workpiece. A first side-pushing device and a second side-pushing device are respectively provided on opposite sides of the first and second stops, which respectively support the square workpiece. A clamping device is also provided on the welding station, which includes a horizontally arranged clamping arm, a pressure head provided on the clamping arm, a rotating device for driving the clamping arm to rotate, and a lifting drive device for driving the clamping arm to rise and fall.

2. The welding fixture as described in claim 1, characterized in that: The rotating device includes a motor, and the clamping arm is connected to the power output end of the motor.

3. The welding fixture as described in claim 2, characterized in that: The lifting drive device is a downward pressure cylinder, and the motor is mounted on the downward pressure cylinder. The downward pressure cylinder can drive the motor to lift and lower.

4. The welding fixture as described in any one of claims 1-3, characterized in that: The position of the pressure head on the clamping arm is adjustable.

5. The welding fixture as described in claim 4, characterized in that: A mounting groove is provided on the clamping arm, and a screw is provided on the pressure head. The screw passes through the mounting groove and is screwed to a locking nut.

6. The welding fixture as described in any one of claims 1-3, characterized in that: The pressure head is a rubber pressure block.

7. The welding fixture as described in any one of claims 1-3, characterized in that: There are multiple clamping devices.

8. The welding fixture as described in any one of claims 1-3, characterized in that: The first side thrust device and the second side thrust device are side thrust cylinders, respectively.

9. The welding fixture as described in any one of claims 1-3, characterized in that: The side walls of the first and second blocks are provided with anti-slip structures.

10. The welding fixture as described in claim 9, characterized in that: The anti-slip structure includes multiple anti-slip protrusions.

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