Lifting machine telescopic arm welding tool

By designing a welding fixture that includes a sliding frame, a pulling rod, a driving frame, and a telescopic rod, the problem of existing clamping devices being unable to clamp reinforcing plates evenly has been solved, achieving stable clamping of reinforcing plates of different sizes and improving welding quality and safety.

CN223656360UActive Publication Date: 2025-12-12JINAN YONGQUAN HYDRAULIC EQUIP CO LTD
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Patent Information

Application Number
CN202520251507.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-12
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing clamping devices are unable to clamp reinforcing plates of different lengths and widths evenly, resulting in uneven clamping force and affecting welding quality.

Method used

A welding fixture comprising a housing, a bracket, a control mechanism, a fixing mechanism, and a clamping mechanism was designed. Through the cooperation of a sliding frame, a pulling rod, a driving frame, and a telescopic rod, a stable clamping of the reinforcing plate and the telescopic arm is achieved, and the positioning is achieved by the cooperation of a positioning rod and a spring.

Benefits of technology

It achieves stable clamping of reinforcing plates of different lengths and widths, ensuring uniform distribution of clamping force and improving the stability and safety of welding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of welding tools, and particularly relates to a lifting machine telescopic arm welding tool which comprises a shell. The number of the supports is four, and the four supports are fixedly installed on the front side and the rear side of the shell respectively. The fixing mechanism is respectively matched with the shell and the control mechanism; the clamping mechanism comprises a clamp and a protection pad; the clamp is connected to the inner wall of the bottom of the shell in a sliding mode, the protection pad is fixedly connected with the clamp, the control mechanism comprises a sliding frame, a pulling rod, a driving frame and a telescopic rod, and the sliding frame is connected to the bottom of the shell in a sliding mode. The sliding frame can control the two clamps to be close to each other so as to clamp and fix the telescopic arms and the reinforcing plates, the clamps can be positioned at any time, and the telescopic arms and the reinforcing plates with various widths and lengths can be conveniently adapted.
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Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, and in particular to a welding tooling for a telescopic boom of a lifting machine. Background Technology

[0002] With the development of the auto repair and automated parking systems, lifts have attracted attention from the automotive industry and related sectors. When a lift is in operation, its telescopic boom needs to bear the weight of various vehicle models. The strength of the boom has a significant impact on the safety of the lift's operation. Therefore, manufacturers often weld reinforcing plates to the outside of the telescopic boom during production, with these plates positioned along the length of the boom.

[0003] To reduce the probability of the reinforcing plate becoming misaligned due to relative sliding between the reinforcing plate and the telescopic arm during welding, companies need to use a clamping device to clamp the reinforcing plate and the telescopic arm before welding.

[0004] Existing clamping devices are inconvenient for clamping reinforcing plates of different lengths and widths, and the clamping force is easily unevenly distributed on the reinforcing plates. Therefore, this utility model proposes a welding fixture for a telescopic boom of a lifting machine to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of existing technologies, such as the inconvenience of clamping devices in clamping reinforcing plates of different lengths and widths, and the uneven distribution of clamping force on the reinforcing plates. Therefore, a welding fixture for the telescopic arm of a lifting machine is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding fixture for a telescopic boom of a lifting platform, including

[0008] shell;

[0009] The brackets consist of four brackets, which are respectively fixedly installed on the front and rear sides of the outer casing;

[0010] The control mechanism and the fixing mechanism are respectively matched with the housing and the control mechanism;

[0011] A clamping mechanism, the clamping mechanism comprising: a clamp and a protective pad;

[0012] The clamp is slidably connected to the bottom inner wall of the housing, and the pad is fixedly connected to the clamp.

[0013] As a preferred embodiment of this utility model, the control mechanism includes: a sliding frame, a pulling rod, a driving frame, and a telescopic rod;

[0014] The sliding frame is slidably connected to the bottom of the housing. The sliding frame is rotatably connected to the pull rod. The pull rod is rotatably connected to the clamp located at the lower position. The sliding frame cooperates with the drive frame. The drive frame is fixedly connected to the telescopic rod. The telescopic rod is rotatably connected to the bottom of the housing. The left end of the telescopic rod is rotatably connected to the clamp located at the upper position.

[0015] As a preferred embodiment of this utility model, the fixing mechanism includes: a positioning rod, a spring, a fixing rod, and a handle;

[0016] The outer side of the positioning rod is slidably connected to the inner side of the sliding frame, the positioning rod is fixedly connected to the fixing rod, the fixing rod is slidably connected to the handle, the handle is fixedly connected to the sliding frame, and the spring is fixedly connected to the fixing rod and the sliding frame respectively.

[0017] As a preferred embodiment of this utility model, the bottom of the outer shell is provided with a plurality of positioning grooves arranged at equal intervals, and the top of the positioning rod can be detachably engaged with the inner wall of the positioning groove.

[0018] In a preferred embodiment of this utility model, a circular block is fixedly installed on the top of the sliding frame, and the outer side of the circular block slides in contact with the inner side of the drive frame.

[0019] As a preferred embodiment of this utility model, the bottom of the outer shell is provided with multiple horizontal sliding grooves, and the bottoms of the two clamps are slidably connected to the inner wall of the horizontal sliding grooves.

[0020] Beneficial effects:

[0021] 1. After the sliding frame is pushed to the right, the sliding frame can pull the pulling rod, which will push the driving frame, so that the driving frame can drive the telescopic rod to rotate counterclockwise, causing the left end to descend. The left end of the telescopic rod can then drive the clamp located in the upper position to descend, and the pulling rod will pull the clamp located in the lower position to rise, so that the two clamps come closer to each other and achieve clamping of the telescopic arm of the lifting machine.

[0022] 2. When the fixed rod is pushed and moved, it can cause the positioning rod to disengage from the outer shell, thereby unlocking the sliding frame and allowing it to move freely. After the positioning rod engages with the outer shell, it can block the movement of the sliding frame and position it, ensuring that the sliding frame is stably located at the bottom of the outer shell. The sliding frame can stably position the pull rod and the drive frame, which in turn can position the two clamps, ensuring that the clamps are stably located inside the outer shell and stably clamp the telescopic boom of the lifting machine.

[0023] In this invention, by unlocking the sliding frame at the bottom of the outer shell and then pushing the sliding frame, the sliding frame can control the two clamps to move closer to each other to clamp and fix the telescopic arm and the reinforcing plate. The position of the clamps can be positioned at any time, making it convenient to adapt to telescopic arms and reinforcing plates of various widths and lengths. Attached Figure Description

[0024] Figure 1 This is a three-dimensional front view of the present invention;

[0025] Figure 2 This is a top-view three-dimensional view of the present invention;

[0026] Figure 3 This is a three-dimensional view of the present invention from below;

[0027] Figure 4 This is a magnified three-dimensional view of the present invention from below.

[0028] In the diagram: 1. Outer shell; 2. Bracket; 3. Clamp; 4. Pad; 5. Sliding frame; 6. Pull rod; 7. Drive frame; 8. Telescopic rod; 9. Positioning rod; 10. Spring; 11. Fixing rod; 12. Handle. Detailed Implementation

[0029] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example

[0031] Reference Figures 1-4 A welding fixture for a telescopic boom of a lifting platform, comprising:

[0032] Outer shell 1;

[0033] Bracket 2, there are four brackets 2, and the four brackets 2 are fixedly installed on the front and rear sides of the outer shell 1 respectively;

[0034] The control mechanism and the fixing mechanism are respectively matched with the outer casing 1 and the control mechanism;

[0035] The clamping mechanism includes: a clamp 3 and a protective pad 4;

[0036] The clamp 3 is slidably connected to the bottom inner wall of the housing 1, and the pad 4 is fixedly connected to the clamp 3.

[0037] With the above structure, by unlocking the sliding frame 5 at the bottom of the outer shell 1 and then pushing the sliding frame 5, the sliding frame 5 can control the two clamps 3 to move closer to each other to clamp and fix the telescopic arm and the reinforcing plate. The position of the clamps 3 can be positioned at any time, which is convenient to adapt to telescopic arms and reinforcing plates of various widths and lengths.

[0038] As a preferred embodiment of this utility model, the control mechanism includes: a sliding frame 5, a pulling rod 6, a driving frame 7, and a telescopic rod 8;

[0039] The sliding frame 5 is slidably connected to the bottom of the outer shell 1. The sliding frame 5 is rotatably connected to the pull rod 6. The pull rod 6 is rotatably connected to the clamp 3 located at the lower position. The sliding frame 5 cooperates with the drive frame 7. The drive frame 7 is fixedly connected to the telescopic rod 8. The telescopic rod 8 is rotatably connected to the bottom of the outer shell 1. The left end of the telescopic rod 8 is rotatably connected to the clamp 3 located at the upper position. After the sliding frame 5 is pushed to the right, the sliding frame 5 can pull the pull rod 6, which will push the drive frame 7, so that the drive frame 7 can drive the telescopic rod 8 to rotate counterclockwise, causing the left end to descend. The left end of the telescopic rod 8 can then drive the clamp 3 located at the upper position to descend. The pull rod 6 will pull the clamp 3 located at the lower position to rise, so that the two clamps 3 are close to each other, realizing the clamping of the telescopic arm of the lifting machine.

[0040] As a preferred embodiment of this utility model, the fixing mechanism includes: a positioning rod 9, a spring 10, a fixing rod 11, and a handle 12;

[0041] The outer side of the positioning rod 9 is slidably connected to the inner side of the sliding frame 5. The positioning rod 9 is fixedly connected to the fixing rod 11. The fixing rod 11 is slidably connected to the handle 12. The handle 12 is fixedly connected to the sliding frame 5. The spring 10 is fixedly connected to the fixing rod 11 and the sliding frame 5 respectively. When the fixing rod 11 is pushed and moved, the fixing rod 11 can drive the positioning rod 9 to disengage from the outer shell 1, thereby unlocking the sliding frame 5 and allowing the sliding frame 5 to move freely. After the positioning rod 9 engages with the outer shell 1, the positioning rod 9 can block the movement of the sliding frame 5, thereby positioning the sliding frame 5 so that the sliding frame 5 can be stably located at the bottom of the outer shell 1. The sliding frame 5 can stably position the pull rod 6 and the drive frame 7. The pull rod 6 and the drive frame 7 can also position the two clamps 3, so that the clamps 3 can be stably located inside the outer shell 1 and stably clamp the telescopic arm of the lifting machine.

[0042] As a preferred embodiment of this utility model, the bottom of the outer shell 1 is provided with a plurality of positioning grooves arranged at equal intervals. The top of the positioning rod 9 can be disengaged from the inner wall of the positioning groove. After the positioning rod 9 is inserted into the inner side of the positioning groove, the positioning rod 9 can block the movement of the sliding frame 5, thereby achieving the positioning of the sliding frame 5.

[0043] As a preferred embodiment of this utility model, a round block is fixedly installed on the top of the sliding frame 5. The outer side of the round block slides in contact with the inner side of the drive frame 7. The round block is used to connect the sliding frame 5 and the drive frame 7, so that the sliding frame 5 can push the drive frame 7 and the telescopic rod 8 to rotate when it moves.

[0044] As a preferred embodiment of this utility model, the bottom of the outer shell 1 is provided with multiple horizontal sliding grooves, and the bottoms of the two clamps 3 are slidably connected to the inner wall of the horizontal sliding grooves. The horizontal sliding grooves are used to install the clamps 3, so that the clamps 3 can be stably positioned at the bottom of the outer shell 1, and the lifting telescopic arm can be stably welded.

[0045] The working principle of this utility model is as follows: When welding the telescopic arm of the lifting machine, firstly, when welding the telescopic arm and the reinforcing plate, the fixed rod 11 is pulled and moved at the bottom of the sliding frame 5. When the fixed rod 11 is pushed and moved, it can cause the positioning rod 9 to disengage from the outer shell 1, thereby unlocking the sliding frame 5 and allowing it to move freely. After the sliding frame 5 is pushed to the right, it can pull the pulling rod 6, which in turn pushes the driving frame 7. This causes the driving frame 7 to rotate the telescopic rod 8 counterclockwise, causing its left end to descend. The left end of the telescopic rod 8 can then cause the clamp 3 located above to descend, pulling... The lever 6 pulls the clamp 3 located at the lower position upward, so that the two clamps 3 come closer to each other and clamp the telescopic arm of the lifting machine. Then, the positioning lever 9 is released, so that the positioning lever 9 can automatically engage with the outer shell 1. After the positioning lever 9 engages with the outer shell 1, the positioning lever 9 can prevent the sliding frame 5 from moving, thereby positioning the sliding frame 5. This allows the sliding frame 5 to be stably located at the bottom of the outer shell 1. The sliding frame 5 can stably position the pull lever 6 and the drive frame 7. The pull lever 6 and the drive frame 7 can also position the two clamps 3, so that the clamps 3 can be stably located inside the outer shell 1 and stably clamp the telescopic arm of the lifting machine.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for a telescopic boom of a lifting platform, characterized in that, include Outer shell (1); The bracket (2) is four in number, and the four brackets (2) are respectively fixedly installed on the front and rear sides of the outer shell (1); The control mechanism and the fixing mechanism are respectively matched with the outer casing (1) and the control mechanism; The clamping mechanism includes: a clamp (3) and a pad (4); The clamp (3) is slidably connected to the bottom inner wall of the outer shell (1), and the pad (4) is fixedly connected to the clamp (3).

2. The welding fixture for a telescopic boom of a lifting machine according to claim 1, characterized in that, The control mechanism includes: a sliding frame (5), a pulling rod (6), a driving frame (7), and a telescopic rod (8); The sliding frame (5) is slidably connected to the bottom of the outer shell (1). The sliding frame (5) is rotatably connected to the pull rod (6). The pull rod (6) is rotatably connected to the clamp (3) located at the lower position. The sliding frame (5) cooperates with the drive frame (7). The drive frame (7) is fixedly connected to the telescopic rod (8). The telescopic rod (8) is rotatably connected to the bottom of the outer shell (1). The left end of the telescopic rod (8) is rotatably connected to the clamp (3) located at the upper position.

3. The welding fixture for a telescopic boom of a lifting machine according to claim 1, characterized in that, The fixing mechanism includes: a positioning rod (9), a spring (10), a fixing rod (11), and a handle (12); The outer side of the positioning rod (9) is slidably connected to the inner side of the sliding frame (5), the positioning rod (9) is fixedly connected to the fixing rod (11), the fixing rod (11) is slidably connected to the handle (12), the handle (12) is fixedly connected to the sliding frame (5), and the spring (10) is fixedly connected to the fixing rod (11) and the sliding frame (5) respectively.

4. The welding fixture for a telescopic boom of a lifting machine according to claim 3, characterized in that, The bottom of the outer shell (1) is provided with a plurality of positioning grooves arranged at equal intervals, and the top of the positioning rod (9) can be detachably engaged with the inner wall of the positioning groove.

5. The welding fixture for a telescopic boom of a lifting machine according to claim 2, characterized in that, A circular block is fixedly installed on the top of the sliding frame (5), and the outer side of the circular block slides in contact with the inner side of the drive frame (7).

6. The welding fixture for a telescopic boom of a lifting platform according to claim 1, characterized in that, The bottom of the outer shell (1) is provided with multiple horizontal sliding grooves, and the bottoms of the two clamps (3) are slidably connected to the inner wall of the horizontal sliding grooves.