Auxiliary welding tool for crane
By designing a support frame and gear transmission system for crane welding auxiliary tooling, precise positioning and fixing of crane parts were achieved, solving the positioning problem during crane welding and improving welding accuracy.
Patent Information
- Application Number
- CN202423082225.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing cranes, due to the large size and complex shape of the components, make precise positioning difficult during welding, leading to welding errors and affecting welding quality.
A crane welding auxiliary fixture was designed, including a support frame, a turntable, a gear transmission system, and a threaded rod mechanism. The threaded rod is driven by the gear transmission to raise and lower the support plate, thereby achieving precise positioning and fixing of the workpiece.
Ensure that the parts to be welded are accurately fixed in the required position to avoid displacement of the parts during the welding process and improve the positional accuracy of the weld.
Smart Images

Figure CN223617028U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of crane technology, and in particular relates to a crane welding auxiliary tooling. Background Technology
[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. It is also known as an overhead crane, gantry crane, or hoist. It plays a key role in many fields such as construction, ports, and logistics. The production process of cranes requires a lot of welding work to connect various parts.
[0003] In existing crane welding processes, due to the large size and complex shape of crane components, welding errors can occur without precise positioning, thus affecting the crane welding operation. Therefore, a crane welding auxiliary tooling is proposed to solve the above-mentioned problems. Utility Model Content
[0004] The purpose of this utility model is to provide a crane welding auxiliary tooling that can accurately fix the parts to be welded in the required position, ensuring that the parts will not shift during welding, thereby guaranteeing the positional accuracy of the weld, so as to solve the above-mentioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A crane welding auxiliary fixture includes a support frame movable frame, a mounting frame is provided on one side of the movable frame, a rotating cylinder is rotatably connected to one side of the mounting frame, a throttle is fixedly connected to one side of the rotating cylinder, a driving wheel is fixedly connected to the other side of the rotating cylinder through a connecting rod, a driven wheel is meshed with one side of the driving wheel, a rotating rod is fixedly connected to the inner cavity of the driven wheel, a first gear is fixedly connected to both sides of the rotating rod, a second gear is meshed with one side of the first gear, a threaded rod is fixedly connected to one side of the second gear, a threaded sleeve is threadedly connected to the outer side of the threaded rod, a lifting cylinder is fixedly connected to the top of the threaded sleeve, and a support plate is fixedly connected to the top of the lifting cylinder.
[0006] Preferably, a turntable is rotatably connected to the top of the mobile frame, and the turntable is fixedly connected to the mounting frame.
[0007] Preferably, a support shell is fixedly connected to one side of the mounting frame, the support shell is rotatably connected to the connection between the second gear and the threaded rod, and the support shell is slidably connected to the lifting cylinder.
[0008] Preferably, a telescopic rod is fixedly connected to the inner cavity of the support shell, and a lifting cylinder is fixedly connected to one side of the telescopic rod.
[0009] Preferably, the top of the support plate is provided with a sliding groove, the inner cavity of the sliding groove is slidably connected to a slider, and the inner cavity of the slider is threadedly connected to a limit post.
[0010] Preferably, the bottom of the mobile frame is fixedly connected with casters, which are evenly distributed at the bottom of the mobile frame.
[0011] The beneficial effects of this utility model are:
[0012] 1. This utility model achieves the following by rotating a handle, which drives a driving wheel to rotate via a rotating cylinder. The driving wheel drives a driven wheel to rotate, and the driven wheel drives a first gear on both sides to rotate via a rotating rod. The first gear drives a second gear to rotate, and the second gear drives a threaded rod to rotate. The threaded rod drives a threaded sleeve to move upward, and the threaded sleeve drives a top support plate to rise. The support plate can move the workpiece to be welded, thus accurately fixing the part to be welded in the required position and ensuring that the part will not shift during welding, thereby guaranteeing the positional accuracy of the weld.
[0013] 2. This utility model uses a turntable to facilitate the rotation of the mounting frame, thereby adjusting the workpiece to be welded;
[0014] 3. The sliding groove of this utility model facilitates the movement and adjustment of the slider, the slider facilitates the limiting and fixing of the welded workpiece, and the limiting post facilitates the limiting and fixing of the slider. Attached Figure Description
[0015] in:
[0016] Figure 1 This is a perspective view of one embodiment of the present utility model;
[0017] Figure 2 This is a perspective view of a threaded rod and a threaded sleeve according to an embodiment of the present invention;
[0018] Figure 3 This is a perspective view of the driving wheel and driven wheel according to an embodiment of the present invention;
[0019] Figure 4 This is a partial enlarged view of point A of this utility model.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Movable frame, 2. Turntable, 3. Mounting frame, 4. Rotary cylinder, 5. Rotary handle, 6. Drive wheel, 7. Driven wheel, 8. Rotary rod, 9. First gear, 10. Second gear, 11. Threaded rod, 12. Support shell, 13. Telescopic rod, 14. Threaded sleeve, 15. Lifting cylinder, 16. Support plate, 17. Slide groove, 18. Slider, 19. Limiting post. Detailed Implementation
[0022] In the following description, embodiments of the crane welding auxiliary tooling of this utility model will be described with reference to the accompanying drawings.
[0023] Example 1:
[0024] Figure 1-4 This invention illustrates a crane welding auxiliary fixture according to an embodiment of the present invention. It includes a support frame movable frame 1, with a turntable 2 rotatably connected to the top of the movable frame 1. The turntable 2 is fixedly connected to a mounting frame 3. The turntable 2 facilitates the rotation of the mounting frame 3, thereby adjusting the workpiece to be welded. A mounting frame 3 is provided on one side of the movable frame 1, and a rotating cylinder 4 is rotatably connected to one side of the mounting frame 3. A handle 5 is fixedly connected to one side of the rotating cylinder 4, and a driving wheel 6 is fixedly connected to the other side of the rotating cylinder 4 via a connecting rod. A driven wheel 7 is meshed with one side of the driving wheel 6, and a rotating rod 8 is fixedly connected to the inner cavity of the driven wheel 7. First gears 9 are fixedly connected to both sides of the rotating rod 8, and a second gear 10 is meshed with one side of the first gear 9. A threaded rod 11 is fixedly connected to one side of the second gear 10, and a threaded sleeve 14 is threadedly connected to the outer side of the threaded rod 11. A lifting cylinder 15 is fixedly connected to the top of the threaded sleeve 14, and a support plate 16 is fixedly connected to the top of the lifting cylinder 15. A sliding section is provided on the top of the support plate 16. The inner cavity of the groove 17 is slidably connected to a slider 18, and the inner cavity of the slider 18 is threadedly connected to a limit post 19. The groove 17 facilitates the movement and adjustment of the slider 18, and the slider 18 facilitates the limiting and fixing of the workpiece to be welded. The limit post 19 facilitates the limiting and fixing of the slider 18. By rotating the handle 5, the handle 5 drives the drive wheel 6 to rotate through the rotating cylinder 4. The drive wheel 6 drives the driven wheel 7 to rotate. The driven wheel 7 drives the first gear 9 on both sides to rotate through the rotating rod 8. The first gear 9 drives the second gear 10 to rotate. The second gear 10 drives the threaded rod 11 to rotate. The threaded rod 11 can drive the threaded sleeve 14 to move upward. The threaded sleeve 14 drives the top support plate 16 to rise. The support plate 16 can move the workpiece to be welded, thereby accurately fixing the part to be welded in the required position, ensuring that the part will not be displaced during welding, and thus ensuring the positional accuracy of the weld.
[0025] Example 2:
[0026] Figure 1-4This invention illustrates a crane welding auxiliary fixture according to an embodiment of the present invention. It includes a support frame movable frame 1, with casters fixedly connected to the bottom of the movable frame 1 and evenly distributed at the bottom. A mounting frame 3 is provided on one side of the movable frame 1, and a support shell 12 is fixedly connected to one side of the mounting frame 3. The support shell 12 is rotatably connected to the connection between the second gear 10 and the threaded rod 11. The support shell 12 is slidably connected to the lifting cylinder 15. A telescopic rod 13 is fixedly connected to the inner cavity of the support shell 12, and the lifting cylinder 15 is fixedly connected to one side of the telescopic rod 13. A rotatable support shell 12 is rotatably connected to one side of the mounting frame 3. A rotating drum 4 has a handle 5 fixedly connected to one side, and a driving wheel 6 fixedly connected to the other side of the rotating drum 4 via a connecting rod. A driven wheel 7 is meshed with one side of the driving wheel 6, and a rotating rod 8 is fixedly connected to the inner cavity of the driven wheel 7. A first gear 9 is fixedly connected to both sides of the rotating rod 8, and a second gear 10 is meshed with one side of the first gear 9. A threaded rod 11 is fixedly connected to one side of the second gear 10, and a threaded sleeve 14 is threadedly connected to the outer side of the threaded rod 11. A lifting cylinder 15 is fixedly connected to the top of the threaded sleeve 14, and a support plate 16 is fixedly connected to the top of the lifting cylinder 15.
[0027] Working Principle: In use, the user places the workpiece on top of the support plate 16, then moves the slider 18, which moves through the slide groove 17 and is then fixed. The user then rotates the handle 5, which drives the driving wheel 6 via the rotating cylinder 4. The driving wheel 6 drives the driven wheel 7, which in turn drives the first gear 9 on both sides via the rotating rod 8. The first gear 9 drives the second gear 10, which in turn drives the threaded rod 11 via the support shell 12. The threaded rod 11 drives the threaded sleeve 14 upwards, which in turn drives the lifting cylinder 15 via the telescopic rod 13. Simultaneously, the lifting cylinders 15 on both sides raise the support plate 16. The support plate 16 allows the workpiece to be welded to be moved. During this movement, the turntable 2 can be rotated to adjust the angle. This design accurately fixes the part to be welded in the desired position, ensuring that the part does not shift during welding and thus guaranteeing the positional accuracy of the weld.
Claims
1. A welding auxiliary fixture for a crane, characterized in that, The device includes a support frame (1), a mounting frame (3) is provided on one side of the support frame (1), a rotating cylinder (4) is rotatably connected to one side of the mounting frame (3), a handle (5) is fixedly connected to one side of the rotating cylinder (4), a drive wheel (6) is fixedly connected to the other side of the rotating cylinder (4) via a connecting rod, a driven wheel (7) is meshed with one side of the drive wheel (6), a rotating rod (8) is fixedly connected to the inner cavity of the driven wheel (7), a first gear (9) is fixedly connected to both sides of the rotating rod (8), a second gear (10) is meshed with one side of the first gear (9), a threaded rod (11) is fixedly connected to one side of the second gear (10), a threaded sleeve (14) is threadedly connected to the outer side of the threaded rod (11), a lifting cylinder (15) is fixedly connected to the top of the threaded sleeve (14), and a support plate (16) is fixedly connected to the top of the lifting cylinder (15).
2. The crane welding auxiliary fixture according to claim 1, characterized in that, The top of the mobile frame (1) is rotatably connected to a turntable (2), and the turntable (2) is fixedly connected to the mounting frame (3).
3. The crane welding auxiliary fixture according to claim 1, characterized in that, A support shell (12) is fixedly connected to one side of the mounting bracket (3). The support shell (12) is rotatably connected to the connection between the second gear (10) and the threaded rod (11). The support shell (12) is slidably connected to the lifting cylinder (15).
4. The crane welding auxiliary fixture according to claim 3, characterized in that, The inner cavity of the support shell (12) is fixedly connected to a telescopic rod (13), and a lifting cylinder (15) is fixedly connected to one side of the telescopic rod (13).
5. The crane welding auxiliary fixture according to claim 1, characterized in that, The top of the support plate (16) is provided with a sliding groove (17), and a slider (18) is slidably connected to the inner cavity of the sliding groove (17). The inner cavity of the slider (18) is threadedly connected to a limit post (19).
6. The crane welding auxiliary fixture according to claim 1, characterized in that, The bottom of the mobile frame (1) is fixedly connected with casters, which are evenly distributed at the bottom of the mobile frame (1).