A center rotary positioner welding fixture

Abstract

The utility model discloses a kind of center rotation position change welding fixtures, including transverse rotating mechanism, installation base being arranged on the transverse rotating mechanism, longitudinal rotating mechanism being arranged on the installation base, installation support being arranged on longitudinal rotating mechanism, and fixed mechanism being arranged on the installation support;The fixed mechanism includes fixed support, main body fixed component and vice fixed component.The transverse rotating mechanism and longitudinal rotating mechanism of the scheme can drive installation support to rotate in horizontal and vertical direction respectively, form space three-dimensional rotary motion, so that workpiece fixed on installation support can be all-round adjustment welding angle, eliminate the welding blind area of traditional fixture.By fixed mechanism, the quick fixing and positioning of workpiece main body and to-be-welded vice piece can be realized, ensure that welding robot can uniformly weld each part of workpiece, improve welding quality and consistency.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment, and more specifically, to a center rotational displacement welding fixture. Background Technology

[0002] In modern industrial manufacturing, welding, as a key joining process, is widely used in numerous industries such as automotive, aerospace, and machinery manufacturing. Welding fixtures, as essential tools assisting welding operations, directly impact welding quality, production efficiency, and production costs. They can precisely position workpieces, effectively reduce welding deformation, and provide reliable assurance for high-quality welding operations.

[0003] However, many welding fixtures currently on the market have significant drawbacks. Existing welding fixtures typically cannot rotate the workpiece after clamping it, a limitation particularly pronounced in scenarios involving welding at both ends of the workpiece. When welding both ends of a workpiece, the fixture's fixing method creates welding blind spots in certain areas. These blind spots make it difficult for welding robots to perform comprehensive and uniform welding operations, easily leading to insufficient welding and inconsistent weld quality. This not only severely impacts the overall quality and performance of the product, reducing the product yield, but may also lead to subsequent rework and repair processes, significantly increasing production costs and extending product delivery cycles. Furthermore, for end-welded workpieces, it is difficult to effectively and quickly fix the main body of the workpiece to the end component to be welded, affecting welding efficiency and quality. Utility Model Content

[0004] The purpose of this utility model is to provide a center rotational displacement welding fixture to solve the technical problems existing in the background art.

[0005] This utility model provides a center rotation displacement welding fixture, including a transverse rotation mechanism, a mounting base disposed on the transverse rotation mechanism, a longitudinal rotation mechanism disposed on the mounting base, a mounting bracket disposed on the longitudinal rotation mechanism, and a fixing mechanism disposed on the mounting bracket.

[0006] The fixing mechanism includes a fixing support, a main fixing component, and a secondary fixing component. The fixing support and the main fixing component are both slidably mounted on the mounting bracket. The main fixing component clamps and fixes the workpiece body on the fixing support, and the secondary fixing component presses and fixes the sub-part to be welded against the side of the workpiece body.

[0007] In a preferred embodiment, the fixed support is provided with a workpiece slot, the workpiece body is supported by the workpiece slot, and the end of the workpiece body protrudes from the fixed support.

[0008] In a preferred embodiment, the mounting bracket is provided with a sliding groove, and the bottom of the fixed support is provided with a slider that matches the sliding groove.

[0009] In a preferred embodiment, the main fixing component includes two sets of clamping cylinders symmetrically distributed on both sides of the fixing support and two rotating jaws respectively disposed on the two sets of clamping cylinders. The two rotating jaws are symmetrically arranged and synchronously clamp the top of the workpiece body.

[0010] In a preferred embodiment, a cylinder support is provided at the bottom of the clamping cylinder, the cylinder support is connected to the mounting bracket via a slide rail, and a translation cylinder with its output end connected to the cylinder support is also installed on the mounting bracket.

[0011] In a preferred embodiment, the secondary fixing assembly includes a pressure cylinder, a pressure seat fixed to the output end of the pressure cylinder, a pressure rod mounted on the pressure seat, and a positioning rod located at the other end of the workpiece body, wherein the pressure rod and the positioning rod are both horizontally arranged.

[0012] The beneficial effects of this utility model's technical solution are:

[0013] The horizontal and vertical rotation mechanisms of this solution can drive the mounting bracket to rotate in the horizontal and vertical directions respectively, forming a three-dimensional rotational motion. This allows the workpiece fixed on the mounting bracket to adjust its welding angle from all directions, eliminating the welding blind spots of traditional fixtures. The fixing mechanism enables rapid fixing and positioning of the workpiece body and the parts to be welded, ensuring that the welding robot can perform uniform welding on all parts of the workpiece, improving welding quality and consistency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the fixing mechanism and mounting bracket structure of this utility model.

[0016] Figure 3 This utility model Figure 2 Enlarged view of part A in the middle.

[0017] Explanation of reference numerals in the attached drawings: 1. Horizontal rotation mechanism; 2. Mounting base; 3. Longitudinal rotation mechanism; 4. Mounting bracket; 5. Fixing mechanism; 6. Fixed support; 7. Clamping cylinder; 8. Rotating gripper; 9. Cylinder support; 10. Translation cylinder; 11. Fixed support; 12. Workpiece slot; 13. Slide groove; 14. Slider; 15. Pressing cylinder; 16. Pressing seat; 17. Pressing rod; 18. Workpiece body; 19. Sub-part to be welded; 20. Slide rail; 21. Positioning rod. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0019] like Figures 1-3 As shown, the present invention provides a center rotation displacement welding fixture, including a transverse rotation mechanism 1, a mounting base 2 disposed on the transverse rotation mechanism 1, a longitudinal rotation mechanism 3 disposed on the mounting base 2, a mounting bracket 4 disposed on the longitudinal rotation mechanism 3, and a fixing mechanism 5 disposed on the mounting bracket 4.

[0020] The horizontal rotation mechanism 1 and the vertical rotation mechanism 3 can drive the mounting bracket 4 to rotate in the horizontal and vertical directions respectively, forming a three-dimensional rotational motion in space, allowing the workpiece fixed on the mounting bracket 4 to adjust the welding angle in all directions. Through the dual-axis rotation design, the welding blind spots of traditional fixtures are eliminated, ensuring that the welding robot can perform uniform welding on all parts of the workpiece, improving welding quality and consistency.

[0021] The fixing mechanism 5 includes a fixing support 6, a main fixing component, and a secondary fixing component. Both the fixing support 6 and the main fixing component are slidably mounted on the mounting bracket 4. The main fixing component clamps and fixes the workpiece body 18 onto the fixing support 6, while the secondary fixing component presses and fixes the component to be welded 19 against the side of the workpiece body 18. The fixing support 6 and the main fixing component can move laterally on the mounting bracket 4 via a sliding structure, allowing adjustment of the fixing position according to the workpiece size and facilitating the fixation of the component to be welded 19 by the secondary fixing component.

[0022] The fixed support 6 is provided with a workpiece slot 12, and the workpiece body 18 is supported by the workpiece slot 12, with the end of the workpiece body 18 protruding from the fixed support 6. The workpiece slot 12 provides bottom support and positioning for the workpiece body 18, and the protruding end facilitates welding of both ends of the workpiece by the welding robot, while preventing the fixed support 6 from obstructing the welding area.

[0023] The main fixing assembly includes two sets of clamping cylinders 7 symmetrically distributed on both sides of the fixing support 6, and two rotating jaws 8 respectively mounted on the two sets of clamping cylinders 7. The two rotating jaws 8 are symmetrically arranged and synchronously clamp the top of the workpiece body 18. The two sets of clamping cylinders 7 operate synchronously, driving the rotating jaws 8 to clamp the workpiece from the top downwards. The rotating jaws 8 can adjust their clamping angle as the cylinders rotate, adapting to the top positioning of workpieces of different shapes. The symmetrical clamping structure provides uniform clamping force, preventing workpiece deformation under stress; and the adjustability of the rotating jaws 8 enhances the adaptability to complex-shaped workpieces, improving clamping accuracy and reliability.

[0024] The mounting bracket 4 is provided with a sliding groove 13, and the bottom of the fixed support 6 is provided with a slider 14 that matches the sliding groove 13. The bottom of the clamping cylinder 7 is provided with a cylinder support 9, and the cylinder support 9 is connected to the mounting bracket 4 through a slide rail 20. The mounting bracket 4 is also equipped with a translation cylinder 10 whose output end is connected to the cylinder support 9.

[0025] The fixed support 6 slides within the slide groove 13 via the slider 14, allowing it to move laterally along the mounting bracket 4. The translation cylinder 10 drives the cylinder support 9 to move laterally along the slide rail 20, causing the clamping cylinder 7 and the rotating jaw 8 to move as a whole, adjusting the clamping position. Firstly, before clamping and fixing the workpiece body 18, the translation cylinder 10 can drive the cylinder support 9 to move, thereby adjusting the position of the rotating jaw. Secondly, after clamping and fixing the workpiece body 18, the two sides of the sub-parts 19 to be welded can be fixed by moving and cooperating with the secondary fixing assembly.

[0026] The auxiliary fixing assembly includes a pressure cylinder 15, a pressure seat 16 fixed to the output end of the pressure cylinder 15, a pressure rod 17 mounted on the pressure seat 16, and a positioning rod 11 located at the other end of the workpiece body 18. The pressure rod 17 and the positioning rod 11 are both horizontally arranged.

[0027] During the installation and positioning of the sub-parts 19 to be welded, the translation cylinder 10 drives the fixed support 6, together with the workpiece body 18, to translate along the mounting bracket 4 towards the positioning rod 11, so that the positioning rod 11 presses against the corresponding sub-parts 19 to be welded. Then, the pressing cylinder 15 drives the pressing rod 17 to press and fix the other sub-parts 19 to be welded onto the workpiece body 18. This achieves the connection between the sub-parts 19 to be welded on both sides and the workpiece body 18, avoiding positional deviations caused by traditional manual fixing, ensuring uniform welding gaps, improving the quality of the welded joint, and simplifying the clamping process while shortening preparation time.

[0028] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A center-rotational displacement welding fixture, characterized in that: It includes a lateral rotation mechanism, a mounting base disposed on the lateral rotation mechanism, a longitudinal rotation mechanism disposed on the mounting base, a mounting bracket disposed on the longitudinal rotation mechanism, and a fixing mechanism disposed on the mounting bracket; The fixing mechanism includes a fixing support, a main fixing component, and a secondary fixing component. The fixing support and the main fixing component are both slidably mounted on the mounting bracket. The main fixing component clamps and fixes the workpiece body on the fixing support, and the secondary fixing component presses and fixes the sub-part to be welded against the side of the workpiece body.

2. The center rotational displacement welding fixture according to claim 1, characterized in that: The fixed support is provided with a workpiece slot, the workpiece body is supported by the workpiece slot, and the end of the workpiece body protrudes from the fixed support.

3. The center rotational displacement welding fixture according to claim 1, characterized in that: The mounting bracket is provided with a sliding groove, and the bottom of the fixed support is provided with a slider that matches the sliding groove.

4. A center rotational displacement welding fixture according to claim 1, characterized in that: The main fixing assembly includes two sets of clamping cylinders symmetrically distributed on both sides of the fixing support and two rotating jaws respectively disposed on the two sets of clamping cylinders. The two rotating jaws are symmetrically arranged and synchronously clamp the top of the workpiece body.

5. A center rotational displacement welding fixture according to claim 4, characterized in that: The clamping cylinder is provided with a cylinder support at its bottom. The cylinder support is connected to the mounting bracket via a slide rail. A translation cylinder with its output end connected to the cylinder support is also installed on the mounting bracket.

6. A center rotational displacement welding fixture according to claim 1, characterized in that: The auxiliary fixing assembly includes a pressure cylinder, a pressure seat fixed to the output end of the pressure cylinder, a pressure rod mounted on the pressure seat, and a positioning rod located at the other end of the workpiece body. Both the pressure rod and the positioning rod are horizontally arranged.

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