Welding tool clamp for machining

Abstract

The utility model discloses a welding work fixture for machining, which comprises a working platform, the upper surface of the working platform is fixedly connected with two sliding fixing strips, a supporting block is arranged above each sliding fixing strip, four sliding grooves and four chip guide grooves are arranged in each supporting block, and the sliding grooves are communicated with the chip guide grooves. The chip guide groove is located below the sliding grooves, a clamping block is arranged between the two sliding grooves, two second fixing blocks are fixedly connected to the lower surface of the clamping block, sliding columns are slidably connected to the interiors of the two fixing blocks, a through hole is formed in the supporting block, and the interior of the through hole is slidably connected with the sliding columns; a thread is arranged on the side, away from the second fixing block, of the sliding column, an inner limiting nut and an outer limiting nut are connected to the thread in a threaded mode, and the inner limiting nut and the outer limiting nut are arranged on the front side and the rear side of the through hole correspondingly. And through cooperation of the sliding grooves and the clamping blocks, precise positioning and stable clamping of workpieces of different shapes and sizes can be achieved.

Description

Technical Field

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

[0002] In the field of modern machining, welding is an extremely important joining process. With the continuous development of the manufacturing industry, the requirements for welding quality and efficiency are increasing. The diversification and complexity of mechanical products bring many challenges to welding work, such as workpieces with different shapes and sizes. Traditional welding fixtures are often single-function and difficult to adapt to the welding needs of various workpieces.

[0003] During use, each time a workpiece of a different size is changed, it is necessary to manually adjust the various parts of the fixture, such as replacing the clamping blocks of different specifications or repositioning other fixing components of the fixture.

[0004] CN2023234455724 discloses a welding fixture for exhaust gas treatment components, including a worktable. A first drive motor is mounted at one end of the worktable. A first bidirectional screw is mounted through the output end of the first drive motor and extends inwards through the worktable. Two first threaded blocks are threaded onto the first bidirectional screw. A connecting seat is mounted upwards through the upper end of each threaded block, extending through the worktable. Movable frames are mounted at both ends above the connecting seat. A third drive motor is mounted at one end of the connecting seat. By configuring the first drive motor, the first bidirectional screw, and the first threaded blocks, the two connecting seats and the movable frame can move relative to each other, thereby aligning the welding positions of the exhaust gas treatment components. Simultaneously, a second drive motor and a second bidirectional screw can adjust the spacing of the clamping components, enabling stable clamping of both ends of the components. However, the fixture's self-adaptive capabilities still require improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a welding fixture for machining. Through the cooperation of the sliding groove and the clamping block, it can achieve precise positioning and stable clamping of workpieces of different shapes and sizes. The elastic clamping system composed of spring, inner limit nut, outer limit nut and sliding column has great advantages. The spring can automatically adjust the clamping force and the position of the clamping block, so that the fixture has good self-adaptability, reduces the clamping adjustment time caused by workpiece tolerance, and improves the overall processing efficiency.

[0006] To achieve the above objectives, a welding fixture for machining is provided, comprising: a work platform, two sliding fixing bars fixedly connected to the upper surface of the work platform, a support block above each sliding fixing bar, four sliding grooves and four chip guide grooves inside the support block, the chip guide grooves being located below the sliding grooves, a clamping block between two sliding grooves, two second fixing blocks fixedly connected to the lower surface of the clamping block, a sliding column slidably connected inside each of the two fixing blocks, a through hole inside the support block, the through hole being slidably connected to the sliding column, a thread on the side of the sliding column away from the second fixing block, an inner limit nut and an outer limit nut threaded onto the thread, the inner limit nut and the outer limit nut being located on the front and rear sides of the through hole, the inner limit nut being located inside the sliding groove, a spring between the inner limit nut and the second fixing block, the spring being sleeved on the outer surface of the sliding column, a first fixing block fixedly connected to the end of the sliding column away from the outer limit nut, the first fixing block and the second fixing block being in contact. This design effectively improves the stability and positioning accuracy of tooling fixtures, ensuring the safety and precision of workpieces during the machining process.

[0007] According to the aforementioned welding fixture for machining, each sliding fixing bar has limit blocks fixedly connected to both its left and right ends. Two sliders are slidably connected to the outer surface of each sliding fixing bar, and four first positioning bolts are threaded to both the front and rear sides of each slider, with the four first positioning bolts contacting the outer surface of the sliding fixing bar. This structural design makes the fixture adjustment more flexible, facilitating rapid positioning and fixing of the workpiece.

[0008] According to the aforementioned welding fixture for machining, each slider has an internal movable groove, and the outer surface of the movable groove is provided with two longitudinal sliding grooves, both of which are located on the left and right sides of the movable groove. This design increases the adaptability of the fixture, enabling it to accommodate workpieces of different shapes and sizes.

[0009] According to the aforementioned welding fixture for machining, several positioning grooves are provided on both the front and rear sides of the two longitudinal sliding grooves, and the positioning grooves are located inside the slider. The design of these positioning grooves makes the workpiece positioning in the fixture more precise, reducing machining errors.

[0010] According to the aforementioned welding fixture for machining, a sliding positioning square tube is slidably connected inside the movable groove. Sliding positioning blocks are fixedly connected to the outer surfaces of both sides of the sliding positioning square tube, and the sliding positioning blocks are slidably connected to the interior of the longitudinal sliding groove. This design improves the rigidity and strength of the fixture, ensuring stability during machining.

[0011] According to the aforementioned welding fixture for machining, the sliding positioning block has two second positioning bolts internally threadedly connected, and both second positioning bolts are in contact with the inner surface of the positioning groove. This design makes the fixture easier to adjust and can quickly adapt to the machining requirements of different workpieces.

[0012] According to the aforementioned welding fixture for machining, the sliding groove and the chip guide groove are internally connected, and the inner limiting nut is adapted to the interior of the sliding groove. This design effectively improves the cleaning performance of the fixture, reduces chip accumulation during machining, and ensures machining quality.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model is equipped with a first fixing block, a sliding column, a second fixing block, a support block, a sliding groove, a chip guide groove, a clamping block, a spring, an inner limit nut, and an outer limit nut. Through the cooperation of the sliding groove and the clamping block, it can achieve precise positioning and stable clamping of workpieces of different shapes and sizes. The elastic clamping system composed of the spring, the inner limit nut, the outer limit nut, and the sliding column has great advantages. The spring can automatically adjust the clamping force and the position of the clamping block, giving the fixture good self-adaptive ability, reducing the clamping and adjustment time caused by workpiece tolerances, and improving the overall processing efficiency.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a perspective view of a welding fixture for machining according to the present invention;

[0018] Figure 2 This is a front view of a welding fixture for machining according to the present invention.

[0019] Figure 3 This is a cross-sectional perspective view of a welding fixture for machining according to the present invention.

[0020] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0021] Figure 5 This utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0022] In the diagram: 1. Working platform; 2. Sliding fixing bar; 3. Limiting block; 4. Slider; 5. First positioning bolt; 6. Support block; 7. Sliding groove; 8. Chip guide groove; 9. First fixing block; 10. Second fixing block; 11. Spring; 12. Inner limiting nut; 13. Outer limiting nut; 14. Sliding column; 15. Clamping block; 16. Movable groove; 17. Positioning groove; 18. Sliding positioning square tube; 19. Sliding positioning block; 20. Second positioning bolt; 21. Longitudinal sliding groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 This utility model provides a technical solution: a welding fixture for machining, comprising: a work platform 1, with two sliding fixing bars 2 fixedly connected to the upper surface of the work platform 1, used to provide a stable mounting base and sliding guide for other components; a support block 6 is provided above each sliding fixing bar 2, serving to support and position related components; the support block 6 has four sliding grooves 7 and four chip guide grooves 8 inside, with the chip guide grooves 8 located below the sliding grooves 7; the sliding grooves 7 are used for sliding installation and positioning of components, and the chip guide grooves 8 facilitate the discharge of chips during machining; a clamping block 15 is provided between two sliding grooves 7 to clamp and fix the workpiece; two second fixing blocks 10 are fixedly connected to the lower surface of the clamping block 15, used to connect other components to achieve linkage of the clamping function; each of the two fixing blocks 10 has a sliding column 14 slidably connected inside, allowing related components to slide relative to each other. To achieve the adjustment of clamping force, the support block 6 has a through hole inside, and the inside of the through hole is slidably connected to the slide column 14 to ensure stable sliding of the slide column 14. The side of the slide column 14 away from the second fixed block 10 is provided with a thread, and the thread is threaded with an inner limit nut 12 and an outer limit nut 13. The position of the nut is adjusted to limit the position of the slide column 14 and the compression degree of the spring 11. The inner limit nut 12 and the outer limit nut 13 are both provided on the front and rear sides of the through hole, and the inner limit nut 12 is located inside the sliding groove 7. A spring 11 is provided between the inner limit nut 12 and the second fixed block 10, and the spring 11 is sleeved on the outer surface of the slide column 14. The elasticity of the spring 11 is used to realize the automatic return and buffering of the clamping block 15. The end of the slide column 14 away from the outer limit nut 13 is fixedly connected to the first fixed block 9, and the first fixed block 9 and the second fixed block 10 are in contact, which plays the role of connection and positioning.

[0025] Each sliding fixing bar 2 has limit blocks 3 fixedly connected to both ends to prevent the slider 4 from sliding out of the sliding fixing bar 2. Two sliders 4 are slidably connected to the outer surface of each sliding fixing bar 2, allowing their position to be adjusted to adapt to different processing requirements. Four first positioning bolts 5 are threaded to both the front and rear sides of each slider 4, and these four first positioning bolts 5 contact the outer surface of the sliding fixing bar 2 to fix the position of the slider 4 on the sliding fixing bar 2. Each slider 4 has an internal movable groove 16 to provide installation and sliding space for other components. Two longitudinal grooves are provided on the outer surface of the movable groove 16. The two longitudinal sliding grooves 21 are both located on the left and right sides of the movable groove 16 for longitudinal sliding guidance of the component. Several positioning grooves 17 are provided on the front and rear sides of the two longitudinal sliding grooves 21. The positioning grooves 17 are located inside the slider 4 to facilitate the positioning and fixing of the component. A sliding positioning square tube 18 is slidably connected inside the movable groove 16, which can slide and adjust its position within the movable groove 16. Sliding positioning blocks 19 are fixedly connected to the outer surfaces of the left and right sides of the sliding positioning square tube 18, and the sliding positioning blocks 19 are slidably connected to the interior of the longitudinal sliding grooves 21 to ensure the stable sliding of the sliding positioning square tube 18.

[0026] The sliding positioning block 19 has two second positioning bolts 20 connected internally by threads, and both second positioning bolts 20 are in contact with the inner surface of the positioning groove 17 to fix the position of the sliding positioning square tube 18. The sliding groove 7 and the chip guide groove 8 are internally connected to ensure that the chips can be discharged smoothly. The inner limit nut 12 is adapted to the inside of the sliding groove 7 so that the inner limit nut 12 can work normally in the sliding groove 7 to achieve the positioning and adjustment of the clamping component.

[0027] Working principle: First, place the support block 6 at a suitable position above the sliding fixing strip 2. At this time, the sliding groove 7 and the chip guide groove 8 inside the support block 6 are in the corresponding working state. The sliding groove 7 provides a track for the subsequent installation and movement of the clamping block 15, and the chip guide groove 8 is ready to guide the discharge of chips generated during the machining process. Place the clamping block 15 between the two sliding grooves 7 of the support block 6, so that the sliding post 14 inside the second fixing block 10 on the lower surface of the clamping block 15 passes through the through hole of the support block 6. First, install the inner limit nut 12 on the sliding post 14. Place the workpiece in the appropriate position within the sliding groove 7, then put on the spring 11, and then screw the outer limit nut 13 onto the sliding column 14. By adjusting the position of the outer limit nut 13, the spring 11 is compressed, so that the spring 11 generates elastic force on the second fixing block 10. The symmetrically arranged clamping blocks 15 generate clamping force on the workpiece placed on the tooling fixture, and stably fix the workpiece on the fixture for subsequent welding operations. During the processing, the generated debris will be discharged through the connected sliding groove 7 and chip guide groove 8 to keep the processing area clean.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A welding fixture clamp for machining, comprising: The utility model provides a work platform (1), the upper surface of work platform (1) is fixedly connected with two sliding fixed strips (2), its characterized in that: the upper of every sliding fixed strip (2) is provided with support block (6), the inside of support block (6) is provided with four sliding grooves (7) and four chip guide grooves (8), and chip guide groove (8) is located the below of sliding groove (7), and the inside of two sliding grooves (7) is provided with clamping block (15), the lower surface of clamping block (15) is fixedly connected with two second fixed blocks (10), the inside of two fixed blocks (10) is slidably connected with slide column (14), the inside of support block (6) is provided with through -hole, and through -hole inside and slide column (14) are slidably connected, the side away from second fixed block (10) of slide column (14) is provided with screw thread, and screw thread is threadedly connected with inner limiting nut (12) and outer limiting nut (13), inner limiting nut (12) and outer limiting nut (13) are all set up in the front and rear two sides of through -hole, and inner limiting nut (12) is located the inside of sliding groove (7), the spring (11) is set up between inner limiting nut (12) and second fixed block (10), and spring (11) and the outer surface of slide column (14) are sleeved, the one end away from outer limiting nut (13) of slide column (14) is fixedly connected with first fixed block (9), and first fixed block (9) and second fixed block (10) contact.

2. A welding fixture clamp for machining as defined in claim 1, characterized in that: The left and right ends of every sliding fixed strip (2) are fixedly connected with limiting blocks (3), the outer surfaces of every sliding fixed strip (2) are slidably connected with two sliding blocks (4), the front and rear sides of every sliding block (4) are threadedly connected with four first positioning bolts (5), and the outer surfaces of the four first positioning bolts (5) contact the sliding fixed strips (2).

3. A welding fixture clamp for machining as defined in claim 2, wherein: An inner cavity of every sliding block (4) is provided with an active groove (16), and the outer surface of the active groove (16) is provided with two longitudinal sliding grooves (21), and the two longitudinal sliding grooves (21) are arranged on the left and right sides of the active groove (16).

4. A welding fixture clamp for machining as defined in claim 3 wherein: The front and rear sides of the two longitudinal sliding grooves (21) are provided with a plurality of positioning grooves (17), and the positioning grooves (17) are located in the inner cavities of the sliding blocks (4).

5. A welding fixture clamp for machining as defined in claim 4 wherein: An inner cavity of the active groove (16) is slidably connected with a sliding positioning square tube (18), and the left and right outer surfaces of the sliding positioning square tube (18) are fixedly connected with sliding positioning blocks (19), and the sliding positioning blocks (19) are slidably connected with the inner cavities of the longitudinal sliding grooves (21).

6. A welding fixture clamp for machining as defined in claim 5 wherein: The inner cavities of the sliding positioning blocks (19) are threadedly connected with two second positioning bolts (20), and the inner surfaces of the two second positioning bolts (20) contact the positioning grooves (17).

7. A welding fixture clamp for machining as defined in claim 1 wherein: The inner cavities of the sliding grooves (7) and the chip guide grooves (8) are in communication, and the inner cavities of the sliding grooves (7) are adapted to the inner limiting nuts (12).

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