A clamping fixture for full position welding
By designing a clamping fixture that combines a counterweight base, a telescopic rod, and a long arm, multi-angle and multi-height adjustments are achieved, solving the problem of insufficient adjustment of existing clamping fixtures, improving the flexibility and stability of welding, and adapting to all-position welding needs.
Patent Information
- Application Number
- CN202522423623.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-14
AI Technical Summary
Existing welding clamping fixtures have limited functionality and insufficient adjustment flexibility, making it difficult to meet the needs of all-position welding. They also lack self-locking function and stability, affecting welding quality and safety.
A clamping fixture comprising a counterweight base, a telescopic rod, a long arm, and a clamping part was designed. By adjusting the combination of the telescopic rod and the long arm, the clamping part can be adjusted to multiple angles and heights. A worm gear structure is used to achieve self-locking and enhance stability.
It improves the flexibility and stability of clamping fixtures, adapts to welding needs in different positions, improves welding quality and safety, and reduces equipment replacement and adjustment time costs.
Smart Images
Figure CN224927306U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping fixtures for welding, and specifically to a clamping fixture for all-position welding. Background Technology
[0002] In the field of welding training and skills development, welding clamping fixtures are crucial equipment for ensuring effective training, and their performance directly impacts trainees' mastery of welding operations in different positions. Currently, commercially available welding clamping fixtures for training suffer from limitations such as limited functionality and insufficient adjustment flexibility, making it difficult to meet the needs of all-position welding training.
[0003] Existing clamping fixtures are mostly designed for specific types of workpieces, such as only being able to fix plates or only being compatible with pipes. When the training involves welding operations on workpieces of different shapes, the clamping fixtures need to be changed frequently, which not only increases the equipment investment cost but also increases the preparation time for training. At the same time, traditional clamping fixtures have poor position adjustment capabilities, and most adjustments are made by changing the clamping fixtures. They cannot directly control parameters such as angle and height, which means that trainees need to readjust the clamping fixtures when practicing welding in different positions such as flat welding, horizontal welding, vertical welding, and overhead welding.
[0004] Furthermore, the adjustment mechanisms of some adjustable clamping fixtures lack reliable self-locking functions, making them prone to positional shifts due to external forces or vibrations during welding. This not only affects welding quality but may also pose safety hazards. Moreover, the overall stability of existing fixtures is insufficient; when fixing and adjusting heavier workpieces, wobbling is likely to occur, further reducing the accuracy of welding operations. Utility Model Content
[0005] The purpose of this invention is to provide a clamping fixture for all-position welding, which solves the problems of difficulty in adjusting the angle and height and insufficient flexibility during welding training.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a tooling for all-position clamping welding, including a counterweight base, a telescopic rod, a long arm and a clamping part; The telescopic rod is set vertically and its bottom is connected to the counterweight base; One end of the long arm is horizontally rotatably connected to the top of the telescopic rod via a first connector, and the other end is connected to the clamping part via a second connector, which can rotate up and down. Alternatively, one end of the long arm is rotatably connected to the top of the telescopic rod via a first connector, and the other end is connected to the clamping part via a second connector, the clamping part being rotatable horizontally.
[0007] As a further technical solution to the above scheme, the telescopic rod includes a fixed sleeve rod, a movable rod, and a locking bolt; the fixed sleeve rod is hollow, with its bottom connected to the counterweight base and its top open; the movable rod is inserted into the opening of the fixed sleeve rod, and the locking bolt passes through the side wall of the fixed sleeve rod and abuts against the movable rod for fixation.
[0008] As a further technical solution to the above scheme, the first connecting member and the second connecting member have the same structure. The first connecting member includes a hollow housing, a worm gear, a worm, a knob, a dial, a pointer, and a rotating shaft. The housing is located at the top of the telescopic rod. One end of the worm is rotatably connected to the inner wall of the housing, and the other end protrudes through the inner wall of the opposite side of the housing and is connected to the knob, which has a pointer. The worm gear is located inside the housing and cooperates with the worm. The rotating shaft is located inside the worm gear and protrudes through the side wall of the housing and is connected to the long arm. The dial is located on the side wall of the housing, and the knob is located inside the dial. By rotating the knob, the pointer points to different positions on the dial for adjustment.
[0009] As a further technical solution of the above solution, the clamping part includes a clamping seat, a hand-tightening bolt and a pressure plate; the clamping seat has a U-shaped cross-section; the hand-tightening bolt is set on the side wall of the clamping seat, extends into the interior of the clamping seat and is connected to the pressure plate, and the pressure plate is set parallel to the side wall of the clamping seat.
[0010] As a further technical solution of the above solution, the side wall of the clamping seat relative to the pressure plate is also provided with a through groove, and an arc-shaped support rod is provided in the through groove. The arc-shaped support rod is perpendicular to the bottom plate of the clamping seat, and one end of the arc-shaped support rod is connected to the bottom plate of the clamping seat.
[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: This utility model sets a telescopic rod and a long arm to install a clamping part on the counterweight base, uses the clamping part to clamp the workpiece, and sets a first connecting piece and a second connecting piece on the telescopic rod and the long arm respectively to adjust the position of the clamping part. At the same time, the telescopic rod can also adjust the height of the clamping part by extending and retracting, so as to adapt to the welding requirements of different positions and increase the flexibility of the device. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is a schematic diagram of the telescopic rod.
[0014] Figure 3 This is a schematic diagram of the internal structure of the first connector.
[0015] Figure 4 This is a schematic diagram of the clamping part.
[0016] The labels in the diagram are as follows: counterweight base - 1; telescopic rod - 2; fixed sleeve rod - 21; movable rod - 22; locking bolt - 23; long arm - 3; clamping part - 4; clamping seat - 41; hand-tightening bolt - 42; pressure plate - 43; first connecting piece - 5; box body - 51; worm gear - 52; worm - 53; knob - 54; dial - 55; pointer - 56; rotating shaft - 57; second connecting piece - 6; through groove - 7; arc-shaped support rod - 8. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.
[0018] like Figures 1-4 As shown, a clamping fixture for all-position welding includes a counterweight base 1, a telescopic rod 2, a long arm 3, and a clamping part 4. The telescopic rod 2 is set vertically and its bottom is connected to the counterweight base 1; One end of the long arm 3 is horizontally rotatably connected to the top of the telescopic rod 2 via the first connector 5, and the other end is connected to the clamping part 4 via the second connector 6. The clamping part 4 can rotate up and down. Alternatively, one end of the long arm 3 can be rotatably connected to the top of the telescopic rod 2 via the first connector 5, and the other end can be connected to the clamping part 4 via the second connector 6, which can rotate horizontally.
[0019] When using this device, first place the counterweight base 1 on a flat surface (such as the ground or workbench). Install the telescopic rod 2 on the counterweight base 1. The counterweight base 1 is relatively heavy and serves as a counterweight accessory. When clamped by the clamping part 4, it can maintain the stability of the entire device and prevent the device from losing balance due to the excessive weight of the clamped object. After the telescopic rod 2 and the long arm 3 are installed, use the clamping part 4 to clamp the workpiece. After clamping, use the first connecting piece 5 to rotate and adjust the angle of the long arm 3, and the second connecting piece 6 to rotate and adjust the angle of the clamping part 4. Through the adjustment of the first connecting piece 5 and the second connecting piece 6, the clamping part 4 can be adjusted in both the horizontal and vertical directions, thus expanding its application range. When a large adjustment in height is required, the telescopic rod 2 can be extended or retracted to adjust the height of the clamping part 4, adapting to the needs of welding in different positions such as flat welding, horizontal welding, vertical welding, and overhead welding (all-position welding).
[0020] like Figure 2As shown in a preferred embodiment, the telescopic rod 2 includes a fixed sleeve rod 21, a movable rod 22, and a locking bolt 23. The fixed sleeve rod 21 is hollow, with its bottom connected to the counterweight base 1 and its top open. The movable rod 22 is inserted into the opening of the fixed sleeve rod 21, and the locking bolt 23 passes through the side wall of the fixed sleeve rod 21 and abuts against the movable rod 22 for fixation. In this embodiment, when adjustment is needed using the telescopic rod 2, the locking bolt 23 is loosened, causing the fixed sleeve rod 21 and the movable rod 22 to be in a movable state. Moving the movable rod 22 adjusts the length of the movable rod 22 inserted into the fixed sleeve rod 21, and the lengths of the fixed sleeve rod 21 and the movable rod 22 extending out of the fixed sleeve rod 21 change, thus adjusting the overall length of the telescopic rod 2.
[0021] like Figure 3 As shown, in a preferred embodiment, the first connecting member 5 and the second connecting member 6 have the same structure. The first connecting member 5 includes a hollow housing 51, a worm gear 52, a worm 53, a knob 54, a dial 55, a pointer 56, and a rotating shaft 57. The housing 51 is located on the top of the telescopic rod 2. One end of the worm 53 is rotatably connected to the inner wall of the housing 51, and the other end extends out of the inner wall of the opposite side of the housing 51 and is connected to the knob 54. The knob 54 is equipped with a pointer 56. The worm gear 52 is located inside the housing 51 and cooperates with the worm 53. The rotating shaft 57 is located inside the worm gear 52 and extends out of the side wall of the housing 51 to connect to the long arm 3. The dial 55 is located on the side wall of the housing 51, and the knob 54 is located inside the dial 55. By rotating the knob 54, the pointer 56 points to different positions on the dial 55 for adjustment. In this embodiment, when adjusting using the first connecting piece 5, the operator rotates the knob 54, which drives the worm gear 53 to rotate. The rotation of the worm gear 53 drives the worm wheel 52 to rotate. Since the rotating shaft 57 is located inside the worm wheel 52, the rotating shaft 57 follows the rotation of the worm wheel 52, and the rotation of the rotating shaft 57 drives the long arm 3 to adjust its angle. This embodiment uses the worm wheel 52 and worm gear 53 for adjustment, utilizing the self-locking characteristics of the worm wheel 52 and worm gear 53 to achieve stability after the angle is adjusted, preventing loosening during welding. After the adjustment is complete, rotating the knob 54 causes the pointer 56 to change its position on the dial 55. Based on the reading on the dial 55, the operator can precisely control the adjustment angle, resulting in high accuracy in repositioning during the second welding repetition, making it suitable for training scenarios involving repeated welding at the same position.
[0022] like Figure 4As shown, in a preferred embodiment, the clamping part 4 includes a clamping seat 41, a hand-tightening bolt 42, and a pressure plate 43. The clamping seat 41 has a U-shaped cross-section. The hand-tightening bolt 42 is disposed on the side wall of the clamping seat 41, extends into the interior of the clamping seat 41, and is connected to the pressure plate 43. The pressure plate 43 is arranged parallel to the side wall of the clamping seat 41. In this embodiment, when the clamping part 4 clamps the workpiece, the workpiece is first placed inside the clamping seat 41. The operator tightens the hand-tightening bolt 42, causing the pressure plate 43 to move towards the other side wall of the clamping seat 41, thereby clamping the workpiece.
[0023] like Figure 4 As shown in a preferred embodiment, the clamping seat 41 is further provided with a through groove 7 on the side wall opposite to the pressure plate 43. An arc-shaped support rod 8 is provided within the through groove 7. The arc-shaped support rod 8 is perpendicular to the bottom plate of the clamping seat 41, and one end of the arc-shaped support rod 8 is connected to the bottom plate of the clamping seat 41. In this embodiment, the through groove 7 and the arc-shaped support rod 8 on the clamping seat 41 meet the requirements of tubular workpieces. When clamping a tubular workpiece, the end of the tubular workpiece is fitted onto the arc-shaped support rod 8, and the pressure plate 43 is moved to press and clamp the tubular workpiece, thus achieving clamping. This adapts to different pipe shapes and avoids the need to change clamping fixtures when dealing with pipes of different shapes.
[0024] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.
[0025] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A clamping fixture for all-position welding, characterized in that: It includes a counterweight base (1), a telescopic rod (2), a long arm (3), and a clamping part (4). The telescopic rod (2) is set vertically and its bottom is connected to the counterweight base (1); One end of the long arm (3) is horizontally rotatably connected to the top of the telescopic rod (2) via the first connector (5), and the other end is connected to the clamping part (4) via the second connector (6). The clamping part (4) can rotate up and down. Alternatively, one end of the long arm (3) can be rotatably connected to the top of the telescopic rod (2) via the first connector (5), and the other end can be connected to the clamping part (4) via the second connector (6), which can rotate horizontally.
2. The clamping fixture for all-position welding as described in claim 1, characterized in that: The telescopic rod (2) includes a fixed sleeve rod (21), a movable rod (22), and a locking bolt (23); the fixed sleeve rod (21) is hollow, with its bottom connected to the counterweight base (1) and its top open; the movable rod (22) is inserted into the opening of the fixed sleeve rod (21), and the locking bolt (23) passes through the side wall of the fixed sleeve rod (21) and abuts against the movable rod (22) for fixation.
3. The clamping fixture for all-position welding as described in claim 1, characterized in that: The first connector (5) has the same structure as the second connector (6). The first connector (5) includes a hollow housing (51), a worm gear (52), a worm (53), a knob (54), a dial (55), a pointer (56), and a rotating shaft (57). The housing (51) is located on the top of the telescopic rod (2). One end of the worm (53) is rotatably connected to the inner wall of the housing (51), and the other end protrudes from the inner wall of the opposite side of the housing (51) and is connected to the knob. (54) A pointer (56) is provided on the knob (54); a worm gear (52) is set inside the housing (51) and cooperates with the worm (53); a rotating shaft (57) is set inside the worm gear (52) and passes through the side wall of the housing (51) to connect to the long arm (3); a dial (55) is set on the side wall of the housing (51) and a knob (54) is set inside the dial (55). By rotating the knob (54), the pointer (56) points to different positions on the dial (55) for adjustment.
4. The clamping fixture for all-position welding as described in claim 1, characterized in that: The clamping part (4) includes a clamping seat (41), a hand-tightening bolt (42) and a pressure plate (43); the clamping seat (41) has a U-shaped cross section; the hand-tightening bolt (42) is set on the side wall of the clamping seat (41), and extends into the inside of the clamping seat (41) to connect with the pressure plate (43), and the pressure plate (43) is set parallel to the side wall of the clamping seat (41).
5. A clamping fixture for all-position welding as described in claim 4, characterized in that: The clamping seat (41) is also provided with a through groove (7) on the side wall of the pressure plate (43). An arc-shaped support rod (8) is provided in the through groove (7). The arc-shaped support rod (8) is perpendicular to the bottom plate of the clamping seat (41), and one end of the arc-shaped support rod (8) is connected to the bottom plate of the clamping seat (41).