A frame welding positioning tool

Abstract

The utility model relates to welding frock technical field discloses a kind of frame welding positioning frock, including main station, the bottom of main station is fixedly connected with bottom plate, the bottom of bottom plate is fixedly connected with two fixed blocks, the bottom of two fixed blocks is fixedly connected with fixed plate one, the bottom of fixed plate one is rotatably connected with two rotating plates, the bottom of bottom plate is fixedly connected with telescopic column, the bottom of telescopic column is fixedly connected with support plate, the top of support plate is fixedly connected with two fixed plate two, the inside of two fixed plate two is slidably connected with moving block, the side similar to two moving blocks is fixedly connected with damping rod. In the utility model, bottom plate is moved downward by downward moving force, makes rotating plate rotate, makes rotating plate receive force plate, makes force plate rotate, makes the moving block of bottom move, makes spring and damping rod stretch, and the buffer of welding vibration is generated.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, and in particular to a vehicle frame welding positioning tooling. Background Technology

[0002] The chassis is the basic structure of a vehicle, much like the skeleton of a person, supporting all vehicle components and withstanding various loads and forces during vehicle operation. Welding fixtures are used in chassis manufacturing because chassis are typically composed of multiple complex-shaped parts. Precise positioning devices and clamping mechanisms ensure that each component is accurately positioned during welding, guaranteeing that the chassis's dimensional accuracy and shape meet design requirements. Simultaneously, welding fixtures can fix components, reducing deformation during welding and improving weld quality and stability. Furthermore, welding fixtures improve production efficiency, standardize the chassis welding process, facilitate mass production, and reduce production costs, playing a crucial role in ensuring the overall performance and quality of the chassis.

[0003] The chassis welding fixture mainly consists of positioning elements, clamping mechanisms, support devices, a fixture skeleton, and auxiliary components. Positioning elements determine the precise location of chassis components, ensuring that the relative positions of each component meet design requirements. The clamping mechanism applies pressure to fix the components, preventing displacement or deformation during welding. The support device supports large or complex components, enhancing the overall stability of the fixture. The fixture skeleton serves as the basic framework, bearing the various functional components and ensuring the structural strength of the fixture. Auxiliary components include guiding devices and inspection tools, which assist in positioning, improve welding accuracy, or facilitate operation. These components work together to achieve precise positioning, reliable clamping, and stable support of chassis components, ensuring welding quality and production efficiency.

[0004] In existing technologies, some frame welding fixtures experience excessive vibration and fluctuation during the welding process, which can cause the welding position of frame components to shift, resulting in irregular welds, out-of-tolerance welding dimensions, and quality defects such as incomplete welds and weld failures. This seriously affects the welding strength and sealing performance, and reduces the deformation resistance and protection capabilities of the frame components. Therefore, a frame welding positioning fixture is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a chassis welding positioning fixture, which aims to improve the existing technology where excessive vibration and floating caused by welding can lead to displacement of the welding position of chassis components, resulting in irregular welds, out-of-tolerance welding dimensions, and quality defects such as incomplete welding and weld failure. This seriously affects the welding strength and sealing performance, and reduces the deformation resistance and protection capabilities of chassis components.

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

[0007] A chassis welding positioning fixture includes a main platform. A base plate is fixedly connected to the bottom of the main platform. Two fixing blocks are fixedly connected to the bottom of the base plate. A fixing plate 1 is fixedly connected to the bottom of each of the two fixing blocks. Two rotating plates are rotatably connected to the bottom of the fixing plate 1. A telescopic column is fixedly connected to the bottom of the base plate. A support plate is fixedly connected to the bottom of the telescopic column. Two fixing plates 2 are fixedly connected to the top of the support plate. Moving blocks are slidably connected inside the two fixing plates 2. A damping rod is fixedly connected to the adjacent side of each of the two moving blocks. A spring is provided on the outside of the damping rod. A force-bearing plate is rotatably connected to the distant side of each of the two moving blocks. A heat dissipation assembly for heat dissipation of chassis components is fixedly connected to the top of the main platform.

[0008] As a further description of the above technical solution:

[0009] The heat dissipation assembly includes a sensing block, the bottom of which is fixedly connected to the top of the main unit, a second transmission rod fixedly connected to the top of the sensing block, a heat dissipation plate fixedly connected to the top of the second transmission rod, and a protective shell fixedly connected to the top of the sensing block.

[0010] As a further description of the above technical solution:

[0011] The top of the force-bearing plate is fixedly connected to the bottom of the rotating plate, and the left and right sides of the spring are fixedly connected to the adjacent sides of the two moving blocks.

[0012] As a further description of the above technical solution:

[0013] Limiting plates 1 are fixedly connected to both the front and rear sides of the main platform, and limiting plates 2 are fixedly connected to both the front and rear sides of the support plate. The bottom of limiting plate 1 is in contact with the top of limiting plate 2.

[0014] As a further description of the above technical solution:

[0015] A clamping hydraulic cylinder one is fixedly connected to the top of the main platform, and a clamping hydraulic cylinder two is fixedly connected to the top of the main platform.

[0016] As a further description of the above technical solution:

[0017] A positioning hydraulic cylinder is fixedly connected to the top of the main platform, and a clamping component is fixedly connected to the bottom of the positioning hydraulic cylinder.

[0018] As a further description of the above technical solution:

[0019] The protective shell has two receiving blocks fixedly connected inside. The bottom of each of the two receiving blocks is fixedly connected to a transmission rod. The adjacent sides of the two transmission rods are fixedly connected to the front and rear sides of the sensing block.

[0020] As a further description of the above technical solution:

[0021] The heat sink is externally fixedly connected to the inside of the protective shell, and the transmission rod 2 is externally fixedly connected to the inside of the protective shell.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the base plate is subjected to a downward moving force, thereby moving downward and causing the rotating plate to rotate. The rotating plate receives the force plate, causing the force plate to rotate, which in turn causes the bottom moving block to move, causing the spring and damping rod to stretch. This achieves buffering of vibrations generated during welding. In addition, it can reduce the damage of welding vibrations to the precision structure of the frame components, avoid weld cracking or component loosening, and thus ensure welding accuracy and component reliability.

[0024] 2. In this utility model, when the receiving block receives the high-intensity heat transmitted by the clamping component, it causes the induction block to transfer the power to the heat sink under the action of the transmission rod one, so that the heat sink can dissipate heat to the clamping component, thereby realizing heat dissipation of the frame during welding. In addition, it can prevent the frame components from deforming or damaging their performance due to the high temperature of welding, thereby ensuring the structural integrity and functional stability of the component. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a vehicle frame welding positioning fixture proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the base plate of a vehicle frame welding positioning fixture proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the moving block of a vehicle frame welding positioning fixture proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the heat sink plate of a vehicle frame welding positioning fixture proposed in this utility model.

[0029] Legend:

[0030] 1. Main platform; 2. Base plate; 3. Fixing block; 4. Fixing plate one; 5. Rotating plate; 6. Force plate; 7. Moving block; 8. Damping rod; 9. Spring; 10. Fixing plate two; 11. Support plate; 12. Sensing block; 13. Protective shell; 14. Receiving block; 15. Transmission rod one; 16. Heat sink plate; 17. Transmission rod two; 18. Clamping hydraulic cylinder one; 19. Clamping hydraulic cylinder two; 20. Positioning hydraulic cylinder; 21. Clamping component; 22. Limiting plate one; 23. Limiting plate two; 24. Telescopic column. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 and Figure 3 This utility model provides an embodiment of a vehicle frame welding positioning fixture, including a main platform 1, which is the foundation of the entire equipment and supports its normal operation. A base plate 2 is fixedly connected to the bottom of the main platform 1, which protects the bottom of the base plate 2. Two fixing blocks 3 are fixedly connected to the bottom of the base plate 2, and a fixing plate 4 is fixedly connected to the bottom of each fixing block 3. The fixing blocks 3 and the fixing plate 4 receive the base plate 2 of the equipment and stabilize it. Two rotating plates 5 are rotatably connected to the bottom of the fixing plate 4. The rotating plates 5 receive the pushing force applied by the fixing plate 4 and move to stabilize it. A telescopic column 24 is fixedly connected to the bottom of the base plate 2. The telescopic column 24 connects the support plate 11 and the top of the base plate 2 to stabilize the connection and make its up-and-down movement stable. The support plate 11 is fixedly connected to the bottom of the telescopic column 24. The support plate 11 supports the entire part of the equipment and makes the entire part operate stably.

[0033] Two fixed plates 10 are fixedly connected to the top of the support plate 11. Movable blocks 7 are slidably connected inside the two fixed plates 10. Damping rods 8 are fixedly connected to the adjacent sides of the two movable blocks 7. Springs 9 are provided on the outside of the damping rods 8. Force plates 6 are rotatably connected to the distant sides of the two movable blocks 7. The fixed plates 10 stabilize the movement of the movable blocks 7 inside. The sliding blocks receive the rotational force from the force plates 6 and thus move. The force plates 6 receive the rotational force from the rotating plate 5 and thus move linearly to stabilize them. The damping rods 8 and springs 9 receive the pushing force from the movable blocks 7 and thus stretch them to buffer the movable blocks 7, thereby buffering the main platform 1. A heat dissipation assembly for cooling the frame components is fixedly connected to the top of the main platform 1.

[0034] Reference Figure 2 and Figure 4 The heat dissipation assembly includes a sensor block 12, the bottom of which is fixedly connected to the top of the main unit 1. A transmission rod 17 is fixedly connected to the top of the sensor block 12, and a heat sink 16 is fixedly connected to the top of the transmission rod 17. A protective shell 13 is fixedly connected to the top of the sensor block 12. The sensor block 12 receives the overheat signal transmitted by the device, and thus activates the heat sink 16 under the action of the transmission rod 17. The transmission rod 17 receives the power from the sensor block 12 and transmits it. Its exterior is heat-insulating. The heat sink 16 receives the power from the transmission rod 17 and is activated to dissipate heat on its surface. The top of the heat sink 16 is heat-insulating, which allows it to stably dissipate the heat emitted from both sides of the frame, making the frame less prone to deformation during welding.

[0035] Reference Figures 1 to 3The top of the force-bearing plate 6 is fixedly connected to the bottom of the rotating plate 5. After receiving the downward rotational force, the rotating plate 5 moves downward, causing the force-bearing plate 6 to receive the rotational force and thus operate and stabilize. The left and right sides of the spring 9 are fixedly connected to the adjacent sides of the two moving blocks 7. After receiving the moving force of the two moving blocks 7, the spring 9 is stretched to store elastic force, thus providing elastic support to the two moving blocks 7. Limiting plates 1 and 22 are fixedly connected to the front and rear sides of the main platform 1, and limiting plates 23 are fixedly connected to the front and rear sides of the support plate 11. The bottom of the limiting plate 1 and the top of the limiting plate 23 are... The bottom plate 2 and the support plate 11 are in contact with each other. The limiting plate 11 and the limiting plate 22 are to prevent the bottom plate 2 and the support plate 11 from contacting each other and causing damage to the buffer assembly. The top of the main platform 1 is fixedly connected to the clamping hydraulic cylinder 18, the clamping hydraulic cylinder 29, and the positioning hydraulic cylinder 20. The clamping hydraulic cylinder 18 and the clamping hydraulic cylinder 29 clamp the frame components to stabilize them. The positioning hydraulic cylinder 20 clamps and fixes the frame components to stabilize them. The bottom of the positioning hydraulic cylinder 20 is fixedly connected to the clamping component 21, which clamps the frame components to stabilize them.

[0036] Two receiving blocks 14 are fixedly connected inside the protective shell 13. The receiving blocks 14 receive the heat transmitted from the clamping member 21 and thus transmit signals. Transmission rod 15 is fixedly connected to the bottom of each of the two receiving blocks 14. The adjacent sides of the two transmission rods 15 are fixedly connected to the front and rear sides of the sensing block 12. The transmission rod 15 transmits the signals received by the receiving blocks 14 to the sensing block 12, so that the sensing block 12 responds. The heat sink 16 is fixedly connected to the outside of the protective shell 13. The heat sink 16 receives the signals transmitted by the sensing block 12 and thus begins to dissipate heat on both sides of the frame component. The transmission rod 2 17 is fixedly connected to the outside of the protective shell 13. The transmission rod 2 17 transmits power to the heat sink 16 under the action of the sensing block 12.

[0037] The working principle is as follows: First, the operator places the frame component on the main platform 1, causing the clamping hydraulic cylinders 19 and 2 to move, clamping and positioning the frame component to stabilize it. Then, under the action of the positioning hydraulic cylinder 20, the frame component is fixed on the main platform 1. The operator then welds the frame component. During welding, the main platform 1 will cause the base plate 2 to move up and down due to the vibration amplitude of welding, which in turn causes the bottom fixing plate 4 to move up and down, causing the rotating plate 5 to rotate. This causes the bottom force plate 6 to be stressed, which in turn causes the moving block 7 to move, thereby stretching the spring 9 and damping rod 8. This allows the main platform 1 to be buffered by the action of the spring 9 and damping rod 8, thus achieving the buffering of vibration generated during welding. In addition, it can reduce the damage of welding vibration to the precision structure of the frame component, avoid weld cracking or component loosening, and thus ensure welding accuracy and component reliability.

[0038] Then, during welding, the clamping part 21 continuously receives the welding heat, which is transferred to the receiving block 14, causing the receiving block 14 to transmit the heat signal to the sensing block 12. When the sensing block 12 receives the overheat signal, it causes the heat sink 16 on top to dissipate heat under the action of the transmission rod 17, thus achieving heat dissipation of the frame during welding. In addition, it can prevent the frame components from material deformation and performance damage due to the high temperature of welding, thereby ensuring the structural integrity and functional stability of the components.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chassis welding positioning fixture, comprising a main platform (1), characterized in that: The bottom of the main platform (1) is fixedly connected to a base plate (2), and the bottom of the base plate (2) is fixedly connected to two fixed blocks (3). The bottom of each of the two fixed blocks (3) is fixedly connected to a first fixed plate (4). The bottom of the first fixed plate (4) is rotatably connected to two rotating plates (5). The bottom of the base plate (2) is fixedly connected to a telescopic column (24), and the bottom of the telescopic column (24) is fixedly connected to a support plate (11). The top of the support plate (11) is fixedly connected to two second fixed plates (10). The interior of the two second fixed plates (10) is slidably connected to a moving block (7). The adjacent side of the two moving blocks (7) is fixedly connected to a damping rod (8). The outside of the damping rod (8) is provided with a spring (9). The distant side of the two moving blocks (7) is rotatably connected to a force-bearing plate (6). The top of the main platform (1) is fixedly connected to a heat dissipation assembly for heat dissipation of the frame components.

2. The chassis welding positioning fixture according to claim 1, characterized in that: The heat dissipation assembly includes a sensing block (12), the bottom of which is fixedly connected to the top of the main platform (1), a transmission rod (17) is fixedly connected to the top of the sensing block (12), a heat dissipation plate (16) is fixedly connected to the top of the transmission rod (17), and a protective shell (13) is fixedly connected to the top of the sensing block (12).

3. The chassis welding positioning fixture according to claim 1, characterized in that: The top of the force plate (6) is fixedly connected to the bottom of the rotating plate (5), and the left and right sides of the spring (9) are fixedly connected to the adjacent sides of the two moving blocks (7).

4. The chassis welding positioning fixture according to claim 1, characterized in that: Limiting plate one (22) is fixedly connected to both the front and rear sides of the main platform (1), and limiting plate two (23) is fixedly connected to both the front and rear sides of the support plate (11). The bottom of the limiting plate one (22) is in contact with the top of the limiting plate two (23).

5. The chassis welding positioning fixture according to claim 1, characterized in that: The top of the main platform (1) is fixedly connected to a clamping hydraulic cylinder one (18), and the top of the main platform (1) is fixedly connected to a clamping hydraulic cylinder two (19).

6. The chassis welding positioning fixture according to claim 1, characterized in that: A positioning hydraulic cylinder (20) is fixedly connected to the top of the main platform (1), and a clamping member (21) is fixedly connected to the bottom of the positioning hydraulic cylinder (20).

7. The chassis welding positioning fixture according to claim 2, characterized in that: The protective shell (13) has two receiving blocks (14) fixedly connected inside. The bottom of each of the two receiving blocks (14) is fixedly connected to a transmission rod (15). The two transmission rods (15) are fixedly connected to the front and rear sides of the sensing block (12) on their adjacent sides.

8. The chassis welding positioning fixture according to claim 2, characterized in that: The heat sink (16) is externally fixedly connected to the inside of the protective shell (13), and the transmission rod (17) is externally fixedly connected to the inside of the protective shell (13).

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