Double-station welding fixture

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a double-station welding clamp. Comprising a bottom plate, a mounting plate, positioning assemblies, air cylinders, clamping hands and pressing plates, the positioning assemblies are used for positioning a workpiece, the vertically-arranged mounting plate is mounted on the bottom plate through bolts, and the positioning assemblies, the clamping hands, the air cylinders and the pressing plates are arranged on the front face and the back face of the mounting plate correspondingly; the positioning block comprises an extrusion block and a positioning block, and the air cylinder is connected with the extrusion block. In practical application, parts to be welded can be fixed on the mounting plate to be welded through the structure of the front side and the back side of the mounting plate, and the working efficiency and the space utilization rate are improved through the arrangement of double stations.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and in particular relates to a double-station welding clamp. Background Art

[0002] In existing automobile parts fixtures, the fixtures are mostly set horizontally. The space occupied by the fixture mounting plate varies based on the size of the part. Only one workpiece can be processed in the same working space, resulting in low work efficiency and a large space occupied.

[0003] Patent application number CN106425599B discloses a double-sided processing multi-station fixture comprising a base plate and a mounting plate. A fixed seat is fixed to each side of the mounting plate. A clamping group is provided on each side of the mounting plate. A tooling plate is fixed to each side of the mounting plate via the corresponding clamping group. A rotating shaft extends outward from each end of the mounting plate. The rotating shaft is provided with a positioning portion. The positioning portion of the rotating shaft is evenly distributed with at least two positioning planes along the circumferential direction of the rotating shaft. An arc-shaped surface is provided between two adjacent positioning planes. A support plate is fixed to each side of the two fixed seats. The two positioning portions respectively abut against the tops of the support plates on both sides. A floating seat is installed in each of the two fixed seats for sliding up and down. The rotating shaft passes through the floating seat. A spring is installed between the floating seat and the base plate. The above-mentioned device is also arranged horizontally, occupies a large space, and there is a possibility that the workpiece will fall when the mounting plate is flipped. Therefore, it is urgent for those skilled in the art to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned existing technologies and provide a double-station welding fixture. The double-station welding fixture fixes the workpiece on the mounting plate by vertically setting the mounting plate so that the worker can stand to process the parts, and the workpiece can be positioned and fixed on both sides of the mounting plate, thereby improving work efficiency and space utilization.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A double-station welding fixture includes a base plate, a mounting plate, a positioning assembly, a cylinder, a clamp and a pressure plate. The positioning assembly is used to position the workpiece. The base plate is vertically mounted with the mounting plate by bolts. The positioning assembly, the clamp, the cylinder and the pressure plate are arranged on both the front and back sides of the mounting plate. The positioning assembly includes an extrusion block and a positioning block. The cylinder is connected to the extrusion block.

[0007] Furthermore, an oil separator is provided on the top of the mounting plate, and the cylinder includes a pressure plate cylinder and an extrusion block cylinder. The oil separator is connected to the cylinder through an internal pipeline of the mounting plate.

[0008] The oil separator can reasonably distribute the lubricating oil in the compressed air and supply it to the pressure plate cylinder and the extrusion block cylinder respectively, ensuring that each cylinder can get the right amount of lubrication, thereby reducing friction resistance, extending the cylinder life and improving work efficiency. The pressure plate cylinder and the extrusion block cylinder are designed separately, so that the clamping action (controlled by the extrusion block cylinder) and the pressing action (controlled by the pressure plate cylinder) can be executed independently, which increases the flexibility of equipment operation and can perform precise motion control according to the needs of different workpieces. The oil separator and the cylinder are connected by the internal pipe of the mounting plate, which not only makes the overall structure more compact and saves space, but also reduces the external piping layout, reduces the risk of leakage, and improves the stability and safety of the system.

[0009] Furthermore, a pad is provided on the mounting plate panel, and the pad is fixed to the mounting plate by bolts. The cylinder is provided on the pad, the pressure plate is connected to the pressure plate cylinder, and the extrusion block is connected to the extrusion block cylinder.

[0010] The pad provides a stable support platform for the cylinder, which can effectively disperse and withstand the pressure and impact generated when the cylinder is working, prevent the mounting plate from being deformed due to direct pressure, and enhance the overall rigidity and stability of the equipment. The pad fixed by bolts is height-adjustable and can be fine-tuned according to different workpiece sizes and process requirements, making the relative position between the cylinder and the workpiece more accurate; it is also convenient to remove and replace the pad and related accessories when necessary, which is convenient for equipment maintenance. The pad can prevent the cylinder from directly contacting the hard mounting plate surface, reduce cylinder damage caused by collision or wear, and extend the service life of the cylinder. The pressure plate connects the pressure plate cylinder, and the extrusion block connects the extrusion block cylinder. This design makes the functions of each component clearer and does not interfere with each other during operation, thereby improving the reliability and efficiency of the equipment.

[0011] Furthermore, three support blocks are provided on the mounting plate, the support blocks are fixed to the mounting plate by bolts, and rubber buffer sleeves are sleeved on the support blocks.

[0012] The rubber pad set on the top of the support block has a buffering effect. It can absorb the impact force generated during the placement or operation of the workpiece, reduce vibration and noise, and at the same time protect the workpiece from scratches and protect the equipment from hard impact damage. The rubber pad has good anti-slip properties and can effectively prevent the workpiece from sliding during processing or positioning, further ensuring the accurate and stable positioning of the workpiece. Since the support block is fixed by bolts, it can be quickly and flexibly adjusted according to the size and shape of the specific workpiece to meet the support requirements under different working conditions.

[0013] Furthermore, the positioning block and the extrusion block are both V-shaped, and the positioning block is fixed to the base plate.

[0014] The V-shaped design can provide the workpiece with a highly adaptive guiding and positioning function, especially for shafts or other workpieces with specific angles. The V-groove can automatically center the workpiece according to the contour of the workpiece, greatly improving the positioning accuracy. The V-shaped structure can make the workpiece have a larger contact area with the positioning block and the extrusion block when being positioned or clamped, thereby improving the stability of the workpiece fixation and preventing the workpiece from shaking or displacing due to uneven force during the processing. The V-shaped structure can disperse the point of force application and reduce local stress concentration, so that even when clamping with strong force, the deformation of the workpiece and the positioning block itself can be minimized. The positioning block is fixed to the base plate to ensure the constancy of the positioning reference, so that when the workpiece is replaced or the equipment is adjusted, the positioning block always serves as a stable reference point, simplifying the installation and disassembly process and improving work efficiency.

[0015] Furthermore, the pressing plate is installed on the top of the pressing plate cylinder, and the pressing plate can perform planar circular motion around the connecting portion of the pressing plate cylinder.

[0016] Through the planar circular motion of the pressing plate, the clamping operation of targets in different positions can be achieved within a certain range, which increases the flexibility and adaptability of the clamping action, especially in situations where multi-angle clamping or continuous rotation clamping is required. This design allows the pressing plate to apply pressure in multiple directions according to actual needs, which helps to ensure a more uniform distribution of force throughout the pressing process, reducing the risk of product deformation or damage due to uneven force. The pressing plate cylinder can accurately control the motion trajectory and force of the pressing plate to achieve automated operation, improve production efficiency and product quality consistency. Compared with linear reciprocating motion, the pressing plate performs planar circular motion around the cylinder connection to complete operations in multiple directions within a limited space, which is suitable for production lines or assembly lines with compact space.

[0017] Furthermore, the gripper includes an operating rod and a clamping rod, the operating rod is sleeved with an anti-slip sleeve, and the top of the clamping rod is provided with a rubber buffer pad.

[0018] The anti-slip sleeve on the operating rod can effectively increase the friction when gripping, prevent the staff from operating the clamp due to slipping of the hand, thereby improving the safety and comfort of operation. The rubber buffer pad on the top of the clamping rod can play a buffering role when clamping the workpiece, avoiding direct contact between metal and metal, preventing the workpiece surface from being scratched or damaged, and also reducing the noise generated during the clamping process. The rubber buffer pad has a certain elasticity and can provide appropriate buffering and shock absorption effects when clamping the workpiece, which can ensure sufficient clamping force without causing deformation or damage to the workpiece due to excessive clamping. The anti-slip sleeve and rubber buffer pad can also effectively reduce the wear of the clamping component itself, thereby extending the service life of the clamping hand and even the entire equipment.

[0019] The utility model has the following beneficial effects:

[0020] The mounting plate of the utility model is vertically arranged on the base, which improves the utilization of space compared with the traditional horizontal fixture mounting plate. In addition, both the front and back sides of the mounting plate can be used for part positioning and fixing, which further improves work efficiency.

[0021] The positioning components, clamps, support blocks and pressure plates on the mounting plate ensure that the workpiece can be stably mounted on the mounting plate, and the workpiece will not fall due to instability. The pressure plate is controlled by an independent pressure plate cylinder and can fix different positions of the workpiece separately. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the main view of the present utility model.

[0023] Figure 2 It is a left view of the present utility model.

[0024] Figure 3 It is a right view of the present utility model.

[0025] Figure 4 It is a top view of the present utility model.

[0026] Figure 5 It is a structural schematic diagram of the mounting plate of the utility model.

[0027] Figure 6 It is a schematic diagram of the connection between the pressing plate and the pressing plate cylinder of the utility model.

[0028] Figure 7 It is a structural schematic diagram of the extrusion block of the utility model.

[0029] Figure 8 It is a structural diagram of the positioning block of the utility model.

[0030] Among them are: 1-base plate; 2-mounting plate; 21-pad; 22-oil separator; 3-positioning assembly; 31-extrusion block; 32-positioning block; 4-cylinder; 41-pressure plate cylinder; 42-extrusion block cylinder; 5-pressure plate; 6-gripper; 61-operating rod; 62-clamping rod; 7-support block. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0032] In the description of the present invention, it should be understood that the terms "left side," "right side," "upper," "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Terms such as "first" and "second" do not indicate the importance of a component and therefore should not be construed as limiting the present invention. The specific dimensions used in this embodiment are merely for illustrative purposes and do not limit the scope of protection of the present invention.

[0033] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 It can be seen that a double-station welding fixture includes a base plate 1, a positioning block 32 is fixed on the base plate 1, a mounting plate 2 is provided in the middle of the base plate 1, and three pads 21 are installed on the mounting plate 2, wherein the three pads 21 are fixed to the mounting plate 2 by bolts, and pressure plate cylinders 41 are respectively provided on the pads 21, and a pressure plate 5 is provided on the pressure plate cylinder 41, and a clamping hand 6 is provided on another pad 21. Three supporting blocks are also provided on the mounting plate 2, and an oil separator 22 is provided on the top of the mounting plate 2. An extrusion block 31 is provided above the positioning block 32, and the extrusion block 31 is fixed to the mounting plate 2 through the extrusion block cylinder 42.

[0034] In one embodiment, a hole can be opened at the bottom of the base plate 1 and fixed on the work surface. The bottom of the base plate 1 can also be connected to rollers to facilitate the movement of the device to the specified position. The front and back sides of the mounting plate 2 can fix the workpiece to facilitate the work of the staff. When in use, the workpiece is first lifted to a specified height and pushed between the support blocks 7 for preliminary positioning. The support blocks 7 are provided with rubber buffer sleeves to prevent the support blocks 7 from damaging the workpiece surface due to external factors such as gravity. The workpiece is further fixed using the clamp 6. First, the operating rod 61 is moved to make the clamping rod 62 close to the workpiece. A rubber buffer pad can be set at the top of the clamping rod 62 to prevent the clamping rod 62 from damaging the workpiece surface. Then, the extrusion block cylinder 42 is started to fix the workpiece between the extrusion block 31 and the mounting block 32 to achieve vertical fixation of the workpiece. Finally, the pressure plate cylinder 41 is started to fix the workpiece in the horizontal direction.

[0035] Reference Figure 5 It can be seen that four pads 21 are provided on the mounting plate 2, an oil separator 22 is provided on the top of the mounting plate 2, the mounting plate 2 is installed in the middle position of the base plate 1, and the parts on the front and back sides of the mounting plate 2 are symmetrically arranged.

[0036] In one embodiment, the position of the pad 21 on the mounting plate 2 can be changed as needed to accommodate workpieces of more sizes, and the pad 21 is set to a structure with a middle opening to facilitate the oil supply pipe inside the mounting plate 2 to deliver the oil from the oil distributor 22 to the cylinder 4.

[0037] Reference Figure 6 It can be seen that the pressing plate 5 is installed on the pressing plate cylinder 42. The pressing plate 5 can be on the pressing plate cylinder 42, and the pressing plate cylinder 42 is fixed to the pad 21 on the mounting plate 2 by bolts.

[0038] In one embodiment, when fixing the workpiece for the last step, the pressure plate 5 on one side of the positioning assembly 3 can be used first to rotate the pressure plate 5 to a specified position to ensure that the pressure plate 5 is in good contact with the workpiece, and the pressure plate 5 can also be provided with a rubber buffer pad to prevent damage to the surface of the workpiece. After the pressure plate 5 is rotated to the specified position, the corresponding pressure plate cylinder 41 is started until the pressure plate 5 is fixed to the surface of the workpiece. When using the two pressure plates 5 on the other side, the above steps are repeated to complete the fixation of the workpiece by the three pressure plates 5. When disassembling the workpiece, the fixation of the pressure plate 5 on the workpiece is also released first, and the workpiece is connected to the lifting facility. Then, the fixation of the workpiece by the clamp 6 and the extrusion block 31 is released in turn, and the workpiece is lifted from the mounting plate to complete the removal of the workpiece.

[0039] Reference Figure 7 and Figure 8 It can be seen that the extrusion block 31 and the positioning block 32 are both V-shaped structures, the extrusion block 31 is connected to the extrusion block cylinder 42, and the positioning block 32 is fixed to the base plate 1.

[0040] In one embodiment, rubber buffer pads can be set at the parts where the extrusion block 31 and the positioning block 32 contact the workpiece to prevent the extrusion block 31 from damaging the surface of the workpiece under the action of the extrusion block cylinder 42. The rubber buffer pads on the positioning block 32 are also used to prevent the positioning block 32 from causing wear on the workpiece.

[0041] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A double-station welding fixture, used to fix the workpiece to be welded on the mounting plate to improve work efficiency and space utilization, characterized by: It includes a base plate, a mounting plate, a positioning assembly, a cylinder, a clamp and a pressure plate. The positioning assembly is used to position the workpiece. The base plate is vertically mounted with bolts. The positioning assembly, the clamp, the cylinder and the pressure plate are arranged on both the front and back sides of the mounting plate. The positioning assembly includes an extrusion block and a positioning block. The cylinder is connected to the extrusion block.

2. A double-station welding fixture according to claim 1, characterized in that: An oil separator is also provided on the top of the mounting plate. The cylinder includes a pressure plate cylinder and an extrusion block cylinder. The oil separator is connected to the cylinder through an internal pipeline of the mounting plate.

3. A double-station welding fixture according to claim 2, characterized in that: A pad is also provided on the mounting plate panel, and the pad is fixed to the mounting plate by bolts. The cylinder is provided on the pad, the pressure plate is connected to the pressure plate cylinder, and the extrusion block is connected to the extrusion block cylinder.

4. The double-station welding fixture according to claim 2, characterized in that: Three support blocks are also provided on the mounting plate. The support blocks are fixed to the mounting plate by bolts, and rubber buffer sleeves are sleeved on the support blocks.

5. The double-station welding fixture according to claim 1, characterized in that: The positioning block and the extrusion block are both V-shaped, and the positioning block is fixedly connected to the bottom plate.

6. The double-station welding fixture according to claim 1, characterized in that: The pressing plate is mounted on the top of the pressing plate cylinder, and the pressing plate can perform planar circular motion around the connecting portion of the pressing plate cylinder.

7. The double-station welding fixture according to claim 1, characterized in that: The clamping handle comprises an operating rod and a clamping rod. The operating rod is sleeved with an anti-slip sleeve, and the top of the clamping rod is provided with a rubber buffer pad.

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