Welding clamp for flange welding machining

Abstract

The welding clamp comprises a base, a top seat is arranged above the base, a U-shaped frame is fixed to one side of the top end of the top seat, movable frames are rotationally installed on the two sides of the top end of the U-shaped frame, and bases are fixedly installed at the top ends of the two movable frames; first telescopic air cylinders are rotationally installed on the inner walls of the lower ends of the U-shaped frames below the movable frames, a plurality of supporting bases are fixedly installed at the top end of the base, first clamping rollers are rotationally installed at the positions, between the adjacent supporting bases, of the top end of the base, a sliding frame is arranged on the outer wall of one side of the base, and a second telescopic air cylinder is installed at the bottom of the sliding frame. According to the welding fixture, a flange part can be adjusted to be in an inclined state for welding operation, the flange part can also be adjusted to a specified height area for welding operation, so that the use convenience of the welding fixture is improved, and the purpose of easily and conveniently clamping and fixing a flange is achieved; and in addition, the fixing effect of the welding clamp on the flange part is improved when the welding clamp is used.

Description

Technical Field

[0001] This invention relates to the field of flange welding processing technology, specifically to a welding fixture for flange welding processing. Background Technology

[0002] During the flange welding process, it is necessary to efficiently position and fix the flange components to ensure the welding effect and meet the quality requirements after flange welding. Therefore, it is particularly important to develop a welding fixture for flange welding to perform efficient fixing operations.

[0003] A flange welding fixture, as described in reference announcement number CN217667490U, includes a disc-shaped fixed base. A groove is arranged on the upper surface of the fixed base, and a pallet mechanism capable of supporting flange rotation is arranged at the center of the groove. Limiting mechanisms for limiting the lateral movement of the flange are arranged on both sides of the pallet mechanism within the groove. A fixing mechanism for fixing the longitudinal movement of the flange is arranged on the edge of the fixed base. The pallet mechanism, fixing mechanism, and limiting mechanism are all adjustable. This welding fixture is highly versatile, easy to operate, has high production efficiency, and produces minimal welding deformation, making it very suitable for flange welding. However, while this welding fixture can be widely used, it is generally inconvenient to adjust the angle of the flange components, making it difficult to perform welding operations on the flange components at an inclined angle. Some inconveniences still exist during use, and further improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a welding fixture for flange welding, in order to solve the problem mentioned in the background art that although the welding fixture can be applied well, it is usually inconvenient to adjust the angle of the flange component, making it difficult to perform welding operations on the flange component at an inclined angle, and there are still some inconveniences in the use process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding fixture for flange welding processing, comprising a base, a top seat above the base, a U-shaped frame fixed to one side of the top of the top seat, movable frames rotatably mounted on both sides of the top of the U-shaped frame, a base fixedly mounted on the top of the two movable frames, a first telescopic cylinder rotatably mounted on the inner wall of the lower end of the U-shaped frame below the movable frames, the top of the first telescopic cylinder being rotatably connected to the inner wall of the lower end of the movable frame, a plurality of support seats fixedly mounted on the top of the base, a clamping mechanism being provided on the outer wall of each support seat, a first clamping roller rotatably mounted on the top of the base between adjacent support seats, a sliding frame being provided on one side of the outer wall of the base, a second telescopic cylinder being mounted on the bottom of the sliding frame, a slider being mounted on one end of the second telescopic cylinder, the slider being slidably connected to the sliding frame, a second clamping roller being rotatably mounted on the top of the slider, a control panel being fitted and mounted on the top of the top seat on one side of the U-shaped frame, the output terminal of the microcontroller inside the control panel being electrically connected to the input terminals of the first telescopic cylinder and the second telescopic cylinder respectively.

[0006] Preferably, a first lower connector is fixed to one side of the top of the base, and a second lower connector is fixed to the other side of the top of the base. The arrangement of the second lower connector and the first lower connector is used to place the first guide rod.

[0007] Preferably, a second upper connector is fixedly installed at the bottom of the top seat above the first lower connector, and a first upper connector is fixedly installed at the bottom of the top seat above the second lower connector. The second upper connector and the first upper connector are arranged to accommodate the second guide rod.

[0008] Preferably, two second guide rods are provided on the inner wall between the first upper connecting seat and the second upper connecting seat, and two first guide rods are provided on the inner wall between the first lower connecting seat and the second lower connecting seat. The arrangement of the second guide rods and the first guide rods is used to limit the movement range of the second linkage seat and the first linkage seat.

[0009] Preferably, a first linkage seat is movably connected to the outer wall of the first guide rod, and a second linkage seat is movably connected to the outer wall of the second guide rod. Two cross-shaped lifting frames are provided between the top seat and the base. One side of each end of the cross-shaped lifting frame is rotatably connected to the outer wall of the second upper connecting seat and the first lower connecting seat, respectively. The other side of each end of the cross-shaped lifting frame is rotatably connected to the outer wall of the first linkage seat and the second linkage seat, respectively. The cross-shaped lifting frames are provided to adjust the distance between the base and the top seat.

[0010] Preferably, a bearing seat is fixed on the outer wall of the top seat on one side of the first upper connecting seat, and a threaded shaft is threadedly installed at the center position inside the second linkage seat. One end of the threaded shaft extends to the outside of the second linkage seat, and the other end of the threaded shaft passes through the first upper connecting seat and the bearing seat and is fitted with a handle. The threaded shaft is rotatably connected to the bearing seat, and the threaded shaft is driven to rotate by rotating the handle.

[0011] Preferably, the clamping mechanism includes a first strip seat, a lifting cylinder, and a second strip seat. The first strip seat is fixed on the upper outer wall of one side of the support seat. The lifting cylinder is installed at the top of the first strip seat. The input end of the lifting cylinder is electrically connected to the output end of the internal microcontroller. The second strip seat is installed at the top of the lifting cylinder. The lifting cylinder is configured to drive the second strip seat to perform lifting and lowering operations.

[0012] Preferably, the clamping mechanism includes a rectangular base plate, side frames, and an internal threaded cylinder. The top end of the second strip seat is fixedly mounted with a rectangular base plate, and side frames are mounted on both sides of the top end of the rectangular base plate. An internal threaded cylinder is rotatably mounted on the inner wall between the side frames. The internal threaded cylinder is used to accommodate the screw rod.

[0013] Preferably, the clamping mechanism further includes a screw rod, a handle, a connecting block, a linkage arm, and a pressure block. The screw rod is threaded on the internal thread of the internal threaded cylinder. One end of the screw rod extends to the outside of the internal threaded cylinder and is fitted with a handle. The connecting block is rotatably mounted on the outside of the internal threaded cylinder. Linkage arms are rotatably mounted on the outer walls of both sides of the connecting block. The outer wall of one end of the linkage arm is rotatably connected to the inner wall of the side frame. A pressure block is fixedly mounted on the inner wall of the other end between the two linkage arms. The pressure block is used to press down and fix the flange component.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the welding fixture for flange welding processing can not only adjust the flange component to an inclined state for welding operations, but also adjust the flange component to a specified height area for welding operations, thereby improving the convenience of using the welding fixture, and achieving the purpose of easy clamping and fixing of the flange, and improving the fixing effect of the welding fixture on the flange component when using it. By simultaneously activating two first telescopic cylinders for telescopic operation, the first telescopic cylinders drive the movable frame to rotate slightly on the upper inner wall of the U-shaped frame. The movable frame then drives the base to rotate, at which point the base is tilted. This allows the flange components mounted on the base to be adjusted to a tilted position for welding operations, thereby improving the convenience of using the welding fixture. By placing the flange component on the top of several support seats and attaching the outer wall of the flange component to the outer wall of the first clamping roller, and then activating the second telescopic cylinder to drive the slider to slide inside the slide frame, thereby driving the second clamping roller to move horizontally and attach to the other outer wall of the flange, the flange component can be clamped on the top of the support seat by the first clamping roller in conjunction with the second clamping roller, thus achieving the purpose of easy and convenient clamping and fixing of the flange. By rotating the handle, the threaded shaft is driven to rotate. At this time, the second linkage seat slides on the outer wall of the threaded shaft and drives the cross-shaped lifting frame to rotate between the base and the top seat to adjust the distance between the base and the top seat. This allows the overall height of the welding fixture to be adjusted so that the flange component can be adjusted to the specified height area for welding operations, thereby further improving the convenience of using the welding fixture. The second strip seat is raised and lowered by a lifting cylinder to adjust the height of the pressure block and other related clamping components as needed according to the thickness of the flange component. When the handle is turned, the screw rod is driven to rotate and slide inside the internal threaded cylinder, so that it drives the linkage arm to rotate inside the side frame through the connecting block. This causes the pressure block to move downward and fit against the upper surface of the flange component, thus clamping the flange component and improving the fixing effect of the welding fixture on the flange component. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the U-shaped frame structure of the present invention; Figure 3 This is a bottom view of the cross-shaped lifting frame structure of the present invention; Figure 4 This is a front view structural diagram of the present invention; Figure 5 This is an enlarged structural schematic diagram of the clamping mechanism of the present invention; Figure 6 This is a bottom view of the side frame structure of the present invention; Figure 7 This is a top view of the sliding frame structure of the present invention.

[0016] In the diagram: 1. Base; 2. First lower connecting seat; 3. Second lower connecting seat; 4. Top seat; 5. First upper connecting seat; 6. Second upper connecting seat; 7. First guide rod; 8. Second guide rod; 9. Cross-shaped lifting frame; 10. First linkage seat; 11. Control panel; 12. Rotary handle; 13. U-shaped frame; 14. Movable frame; 15. First telescopic cylinder; 16. Base; 17. Support seat; 18. First clamping roller; 19. Sliding frame; 20. Second telescopic cylinder 21. Cylinder; 22. Slider; 23. Second clamping roller; 24. Second linkage seat; 25. Threaded shaft; 26. Shaft seat; 27. Pressing mechanism; 2601. First strip seat; 2602. Lifting cylinder; 2603. Second strip seat; 2604. Rectangular base plate; 2605. Side frame; 2606. Internal threaded cylinder; 2607. Helical rod; 2608. Rotary handle; 2609. Connecting block; 2610. Linkage arm; 2611. Pressing block. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-7 An embodiment of the present invention provides a welding fixture for flange welding processing, comprising a base 1, a first lower connecting seat 2 fixed on one side of the top end of the base 1, and a second lower connecting seat 3 fixed on the other side of the top end of the base 1. In use, the first guide rod 7 is positioned by setting the second lower connecting seat 3 and the first lower connecting seat 2; The bottom of the top seat 4 above the first lower connecting seat 2 is fixedly installed with the second upper connecting seat 6, and the bottom of the top seat 4 above the second lower connecting seat 3 is fixedly installed with the first upper connecting seat 5. In use, the second upper connecting seat 6 and the first upper connecting seat 5 are set together to accommodate the second guide rod 8. Two second guide rods 8 are provided on the inner wall between the first upper connecting seat 5 and the second upper connecting seat 6, and two first guide rods 7 are provided on the inner wall between the first lower connecting seat 2 and the second lower connecting seat 3. In use, the second guide rod 8 and the first guide rod 7 are set to limit the movement range of the second linkage seat 23 and the first linkage seat 10; The first guide rod 7 is movably connected to the outer wall of the first linkage seat 10, and the second guide rod 8 is movably connected to the outer wall of the second linkage seat 23. Two cross-shaped lifting frames 9 are provided between the top seat 4 and the base 1. One side of each end of the cross-shaped lifting frame 9 is rotatably connected to the outer wall of the second upper connecting seat 6 and the first lower connecting seat 2, respectively. The other side of each end of the cross-shaped lifting frame 9 is rotatably connected to the outer wall of the first linkage seat 10 and the second linkage seat 23, respectively. In use, the cross-shaped lifting frame 9 is used to adjust the distance between the base 1 and the top seat 4; A bearing seat 25 is fixed on the outer wall of the top seat 4 on one side of the first upper connecting seat 5. A threaded shaft 24 is threadedly installed at the center position inside the second linkage seat 23. One end of the threaded shaft 24 extends to the outside of the second linkage seat 23, and the other end of the threaded shaft 24 passes through the first upper connecting seat 5 and the bearing seat 25 and is fitted with a handle 12. The threaded shaft 24 is rotatably connected to the bearing seat 25. In use, the screw handle 12 is turned to drive the threaded shaft 24 to rotate; A top seat 4 is provided above the base 1. A U-shaped frame 13 is fixed on one side of the top of the top seat 4. Movable frames 14 are rotatably installed on both sides of the top of the U-shaped frame 13. A base 16 is fixedly installed on the top of the two movable frames 14. A first telescopic cylinder 15 is rotatably installed on the inner wall of the lower end of the U-shaped frame 13 below the movable frame 14. The top of the first telescopic cylinder 15 is rotatably connected to the inner wall of the lower end of the movable frame 14. Several support seats 17 are fixedly installed on the top of the base 16. Each support seat 17 is provided with a pressing mechanism 26 on its outer wall. The pressing mechanism 26 includes a first strip seat 2601, a lifting cylinder 2602 and a second strip seat 2603. The first strip seat 2601 is fixed on the upper outer wall of one side of the support seat 17. The lifting cylinder 2602 is installed on the top of the first strip seat 2601. The input end of the lifting cylinder 2602 is electrically connected to the output end of the microcontroller inside the 11. The second strip seat 2603 is installed on the top of the lifting cylinder 2602. In use, the lifting cylinder 2602 is set to drive the second strip seat 2603 to perform lifting and lowering operations; The clamping mechanism 26 includes a rectangular base plate 2604, a side frame 2605 and an internal threaded cylinder 2606. The rectangular base plate 2604 is fixedly installed on the top of the second strip seat 2603. The side frame 2605 is installed on both sides of the top of the rectangular base plate 2604. The internal threaded cylinder 2606 is rotatably installed on the inner wall between the side frame 2605. In use, the internal threaded cylinder 2606 is provided to accommodate the spiral rod 2607; The clamping mechanism 26 also includes a screw rod 2607, a handle 2608, a connecting block 2609, a linkage arm 2610, and a pressure block 2611. The screw rod 2607 is installed on the internal thread of the internal threaded cylinder 2606. One end of the screw rod 2607 extends to the outside of the internal threaded cylinder 2606 and is installed with the handle 2608. The connecting block 2609 is rotatably installed on the outside of the internal threaded cylinder 2606. The linkage arm 2610 is rotatably installed on the outer wall of both sides of the connecting block 2609. The outer wall of one end of the linkage arm 2610 is rotatably connected to the inner wall of the side frame 2605. The pressure block 2611 is fixedly installed on the inner wall of the other end between the two linkage arms 2610. In use, the flange components are pressed down and fixed by setting the pressure block 2611; A first clamping roller 18 is rotatably mounted on the top of the base 16 between adjacent support seats 17. A sliding frame 19 is provided on the outer wall of one side of the base 16. A second telescopic cylinder 20 is installed at the bottom of the sliding frame 19. A slider 21 is installed at one end of the second telescopic cylinder 20. The slider 21 is slidably connected to the sliding frame 19. A second clamping roller 22 is rotatably mounted on the top of the slider 21. A control panel 11 is fitted and installed on the top of the top seat 4 on one side of the U-shaped frame 13. The output terminal of the microcontroller inside the control panel 11 is electrically connected to the input terminals of the first telescopic cylinder 15 and the second telescopic cylinder 20, respectively.

[0019] In this embodiment, the first step is to rotate the handle 12 to drive the threaded shaft 24 to rotate. At this time, the second linkage seat 23 slides on the outer wall of the threaded shaft 24 and the second guide rod 8. Simultaneously, the first linkage seat 10 slides on the outer wall of the first guide rod 7. The cross-shaped lifting frame 9 rotates on the outer walls of the second upper connecting seat 6, the first upper connecting seat 5, the first lower connecting seat 2, and the second lower connecting seat 3 to adjust the distance between the base 1 and the top seat 4, thereby adjusting the overall height of the welding fixture. This allows the flange component to be adjusted to a specified height area for welding. Then, by simultaneously activating the two first telescopic cylinders 15, the first telescopic cylinders 15 drive the movable frame 14 to rotate slightly on the upper inner wall of the U-shaped frame 13. The movable frame 14 then drives the base 16 to rotate, causing the base 16 to tilt. This tilts the flange component for welding. Finally, the flange component is placed... At the top of several support seats 17, the outer wall of the flange component is attached to the outer wall of the first clamping roller 18. Then, the second telescopic cylinder 20 is activated, which drives the slider 21 to slide inside the slide frame 19, thereby driving the second clamping roller 22 to move and attach to the other outer wall of the flange. The first clamping roller 18 and the second clamping roller 22 can then clamp the flange component at the top of the support seat 17. In addition, the lifting cylinder 2602 drives the second strip seat 2603 to rise and fall, so as to adjust the height of the pressure block 2611 and other related pressing components as needed according to the thickness of the flange component. When the handle 2608 is turned, the screw rod 2607 is driven to rotate and slide inside the internal threaded cylinder 2606, so that it drives the linkage arm 2610 to rotate inside the side frame 2605 via the connecting block 2609. This causes the pressure block 2611 to move downward and attach to the upper surface of the flange component, thereby pressing the flange component and completing the use of the welding fixture.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although the invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, features in the embodiments disclosed herein can be combined in any way, provided there is no structural conflict. The lack of an exhaustive description of these combinations in this specification is merely for brevity and resource conservation. Therefore, the invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A welding fixture for flange welding, characterized in that: Includes a base (1), with a top seat (4) above the base (1). A U-shaped frame (13) is fixed to one side of the top of the top of the top seat (4). Movable frames (14) are rotatably installed on both sides of the top of the U-shaped frame (13). A base (16) is fixedly installed on the top of the two movable frames (14). A first telescopic cylinder (15) is rotatably installed on the inner wall of the lower end of the U-shaped frame (13) below the movable frame (14). The top of the first telescopic cylinder (15) is rotatably connected to the inner wall of the lower end of the movable frame (14). Several support seats (17) are fixedly installed on the top of the base (16). A pressing mechanism (26) is provided on the outer wall of each support seat (17). Adjacent supports A first clamping roller (18) is rotatably installed on the top of the base (16) between the support (17). A sliding frame (19) is provided on the outer wall of one side of the base (16). A second telescopic cylinder (20) is installed at the bottom of the sliding frame (19). A slider (21) is installed at one end of the second telescopic cylinder (20). The slider (21) is slidably connected to the sliding frame (19). A second clamping roller (22) is rotatably installed on the top of the slider (21). A control panel (11) is fitted on the top of the top seat (4) on one side of the U-shaped frame (13). The output end of the microcontroller inside the control panel (11) is electrically connected to the input end of the first telescopic cylinder (15) and the second telescopic cylinder (20).

2. A welding fixture for flange welding according to claim 1, characterized in that: A first lower connecting seat (2) is fixed on one side of the top of the base (1), and a second lower connecting seat (3) is fixed on the other side of the top of the base (1).

3. A welding fixture for flange welding according to claim 2, characterized in that: A second upper connector (6) is fixedly installed at the bottom of the top seat (4) above the first lower connector (2), and a first upper connector (5) is fixedly installed at the bottom of the top seat (4) above the second lower connector (3).

4. A welding fixture for flange welding according to claim 3, characterized in that: Two second guide rods (8) are provided on the inner wall between the first upper connecting seat (5) and the second upper connecting seat (6), and two first guide rods (7) are provided on the inner wall between the first lower connecting seat (2) and the second lower connecting seat (3).

5. A welding fixture for flange welding according to claim 4, characterized in that: The first guide rod (7) is movably connected to the outer wall of the first linkage seat (10), and the second guide rod (8) is movably connected to the outer wall of the second linkage seat (23). Two cross-shaped lifting frames (9) are provided between the top seat (4) and the base (1). One side of each end of the cross-shaped lifting frame (9) is rotatably connected to the outer wall of the second upper connecting seat (6) and the first lower connecting seat (2), respectively. The other side of each end of the cross-shaped lifting frame (9) is rotatably connected to the outer wall of the first linkage seat (10) and the second linkage seat (23), respectively.

6. A welding fixture for flange welding according to claim 5, characterized in that: A shaft seat (25) is fixed on the outer wall of the top seat (4) on one side of the first upper connecting seat (5). A threaded shaft (24) is threaded at the center position inside the second linkage seat (23). One end of the threaded shaft (24) extends to the outside of the second linkage seat (23), and the other end of the threaded shaft (24) passes through the first upper connecting seat (5) and the shaft seat (25) and is fitted with a handle (12). The threaded shaft (24) is rotatably connected to the shaft seat (25).

7. A welding fixture for flange welding according to claim 1, characterized in that: The pressing mechanism (26) includes a first strip seat (2601), a lifting cylinder (2602) and a second strip seat (2603). The first strip seat (2601) is fixed on the upper outer wall of one side of the support seat (17). The lifting cylinder (2602) is installed at the top of the first strip seat (2601). The input end of the lifting cylinder (2602) is electrically connected to the output end of the microcontroller inside (11). The second strip seat (2603) is installed at the top of the lifting cylinder (2602).

8. A welding fixture for flange welding according to claim 7, characterized in that: The clamping mechanism (26) includes a rectangular base plate (2604), a side frame (2605), and an internal threaded cylinder (2606). The rectangular base plate (2604) is fixedly installed on the top of the second strip seat (2603). The side frame (2605) is installed on both sides of the top of the rectangular base plate (2604). The internal threaded cylinder (2606) is rotatably installed on the inner wall between the side frame (2605).

9. A welding fixture for flange welding according to claim 8, characterized in that: The clamping mechanism (26) also includes a screw rod (2607), a handle (2608), a connecting block (2609), a linkage arm (2610), and a pressure block (2611). The screw rod (2607) is installed on the internal thread of the internal threaded cylinder (2606). One end of the screw rod (2607) extends to the outside of the internal threaded cylinder (2606) and is installed with a handle (2608). One end of the screw rod (2607) extends to the outside of the internal threaded cylinder (2606) and is rotatably installed with a connecting block (2609). Linkage arms (2610) are rotatably installed on the outer walls of both sides of the connecting block (2609). The outer wall of one end of the linkage arm (2610) is rotatably connected to the inner wall of the side frame (2605). A pressure block (2611) is fixedly installed on the inner wall of the other end between the two linkage arms (2610).

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