A welding fixture applied to a car guide rail

Abstract

The utility model provides a kind of welding fixture applied to automobile guide rail, it is characterized by, including: product profiling block, product clamping mechanism, bracket clamping mechanism, tooling fixture bottom plate and product positioning component;The product profiling block, the product clamping mechanism, the bracket clamping mechanism and the product positioning component are all locked in the tooling fixture bottom plate;The product profiling block has profiling block base and profiling block gasket, the profiling block gasket is replaceably pressed and fixed on the profiling block base, and the profiling block base is locked in the tooling fixture bottom plate;The bracket clamping mechanism has multiple gaskets.The utility model can control guide rail deformation, so that welding fixture debugging is more efficient.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures, and in particular to a welding fixture for use in automotive guide rails. Background Technology

[0002] In automobile manufacturing, laser welding is often used to assemble brackets and nuts onto automotive guide rails. This process is well-suited for mass production due to its advantages of high speed, high strength, and narrow heat-affected zone. However, laser welding generates instantaneous high heat, which can easily cause uncontrollable thermal deformation of the guide rails, leading to subsequent assembly failures. Therefore, it is necessary to design specialized welding fixtures to constrain the shape of the guide rails, ensuring dimensional stability after welding and meeting delivery requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a welding fixture for automotive guide rails to ensure dimensional stability of the guide rails after welding.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A welding fixture for automotive guide rails includes: a product contour block, a product clamping mechanism, a bracket clamping mechanism, a tooling fixture base plate, and a product positioning component; the product contour block, the product clamping mechanism, the bracket clamping mechanism, and the product positioning component are all locked onto the tooling fixture base plate; the product contour block has a contour block base and a contour block gasket, the contour block gasket being replaceably pressed and fixed onto the contour block base, and the contour block base being locked onto the tooling fixture base plate; the bracket clamping mechanism has multiple gaskets.

[0005] Furthermore, the bracket clamping mechanism includes a bracket clamping mechanism base, a bracket lifting cylinder, a bracket adjustable dovetail groove mechanism, a bracket pressing cylinder, and a bracket pressing plate; the bracket lifting cylinder is locked onto the bracket clamping mechanism base, the bracket adjustable dovetail groove mechanism is locked above the bracket lifting cylinder, the bracket pressing plate is fixed above the bracket pressing cylinder, and the bracket pressing cylinder is locked onto the bracket adjustable dovetail groove mechanism.

[0006] Furthermore, the bracket clamping mechanism has a lifting cylinder limiting component, which is locked onto the base of the bracket clamping mechanism.

[0007] Furthermore, the adjustable dovetail groove mechanism of the bracket has a dovetail groove base, a bracket contour block base, and a bracket contour block; the dovetail groove base is locked to the bracket lifting cylinder, the bracket contour block base is locked to the dovetail groove base, and the bracket contour block is locked to the bracket contour block base.

[0008] Furthermore, the plurality of gaskets are a first gasket, a second gasket, and a third gasket; the first gasket is locked between the bracket contour block and the bracket contour block base, the second gasket is locked between the bracket contour block base and the dovetail groove base, and the third gasket is locked between the rising cylinder limiter and the bracket clamping mechanism base.

[0009] Furthermore, the product clamping mechanism includes a product clamping cylinder, a product clamping mechanism base, and a product clamping block; the product clamping block is fixed on the product clamping cylinder, and the product clamping cylinder is locked onto the product clamping mechanism base.

[0010] Furthermore, it also includes a solenoid valve, a relay box, and an aviation connector; the solenoid valve and the relay box are both locked under the base plate of the tooling fixture, the relay box is connected to the solenoid valve and the aviation connector through a lead wire, and the aviation connector is fixed outside the relay box.

[0011] Furthermore, it also includes a positioning pin sleeve, which is fixed under the base plate of the tooling fixture.

[0012] Furthermore, the number of product contour blocks is multiple, and the interval between two adjacent product contour blocks is 100-130mm.

[0013] Furthermore, the product contour block has a product limiting component, which is locked onto the contour block base.

[0014] The beneficial effects of this utility model are as follows: The welding fixture achieves precise adaptation and efficient debugging through a multi-dimensional adjustable design. On the one hand, its contour blocks adopt an adjustable structure with intervals of 100-130mm, which can not only ensure the consistency of the fixed distance and the size fit of the product, but also make fine adjustments by adding or removing contour block shims. Combined with the stable clamping of the product clamping cylinder and the welding heat characteristics, it can realize the correction function of different parameter requirements of the guide rail and control the welding deformation of the guide rail. On the other hand, the bracket is equipped with an adjustable dovetail groove mechanism, and the calibration of its front-back, left-right, and up-down positions is also completed by adding or removing shims, which effectively improves the debugging efficiency of the welding fixture. Attached Figure Description

[0015] Figure 1 This is a top view of the overall structure of the welding fixture in a specific embodiment of this utility model; Figure 2 This is a bottom view of the overall structure of the welding fixture in a specific embodiment of this utility model; Figure 3 This is a schematic diagram of the conformal block structure of the welding fixture product in a specific embodiment of this utility model; Figure 4 This is a schematic diagram of the clamping mechanism of the welding fixture product in a specific embodiment of this utility model; Figure 5 This is a side view of the welding fixture bracket clamping mechanism structure in a specific embodiment of this utility model; Figure 6 This is a top view of the welding fixture bracket clamping mechanism structure in a specific embodiment of this utility model; Figure 7 This is a schematic diagram of the adjustable dovetail groove mechanism of the welding fixture bracket in a specific embodiment of this utility model.

[0016] Label Explanation: 1. Product contour block; 11. Contour block gasket; 12. Contour block base; 13. Product limiting component; 14. Side gaskets for contoured blocks; 2. Product clamping mechanism; 21. Product clamping mechanism base; 22. Product pressing cylinder; 23. Product pressing block; 3. Bracket clamping mechanism; 31. Bracket clamping mechanism base; 32. Bracket lifting cylinder; 33. Bracket pressing cylinder; 34. Bracket pressing plate; 35. First gasket; 36. Second gasket; 37. Third gasket; 38. Lifting cylinder limit component; 39. Adjustable dovetail groove mechanism for bracket; 391. Dovetail groove base; 392. Bracket contour block base; 393. Bracket contour block; 4. Fixture base plate; 5. Product positioning components; 6. Solenoid valve; 7. Relay box; 8. Aviation connector; 9. Positioning pin sleeve Detailed Implementation To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0017] Please refer to Figures 1 to 7 A welding fixture for automotive guide rails includes: a product contour block 1, a product clamping mechanism 2, a bracket clamping mechanism 3, a tooling fixture base plate 4, and a product positioning component 5; the product contour block 1, the product clamping mechanism 2, the bracket clamping mechanism 3, and the product positioning component 5 are all locked onto the tooling fixture base plate 4; the product contour block 1 has a contour block base 12 and a contour block pad 11, the contour block pad 11 being replaceably pressed and fixed onto the contour block base 12, and the contour block base 12 being locked onto the tooling fixture base plate 4; the bracket clamping mechanism 3 has multiple pads.

[0018] As can be seen from the above description, the beneficial effects of this utility model are as follows: A welding fixture for automotive guide rails, on the one hand, allows for the design of a corresponding number of product contour blocks in the upper, middle, and lower regions of the guide rail according to its surface dimensions. The product contour blocks can adjust their contact height with the guide rail by adding or removing shims of different thicknesses on the contour block base. A product clamping cylinder is added above the contour blocks to achieve the corrective function of the guide rail product. On the other hand, the bracket is equipped with an adjustable dovetail groove mechanism, and its position calibration is also completed by adding or removing shims, effectively improving the debugging efficiency of the welding fixture.

[0019] Furthermore, the bracket clamping mechanism 3 includes a bracket clamping mechanism base 31, a bracket lifting cylinder 32, a bracket adjustable dovetail groove mechanism 39, a bracket pressing cylinder 33, and a bracket pressing plate 34; the bracket lifting cylinder 32 is locked onto the bracket clamping mechanism base 31, the bracket adjustable dovetail groove mechanism 39 is locked above the bracket lifting cylinder 32, the bracket pressing plate 34 is fixed above the bracket pressing cylinder 33, and the bracket pressing cylinder 33 is locked onto the bracket adjustable dovetail groove mechanism 39.

[0020] As described above, the overall structure achieves height adjustment through the support lifting cylinder, position adjustment in a specific direction through the support adjustable dovetail groove mechanism, and finally the support clamping cylinder drives the support clamping plate to complete the clamping action of the support, thereby realizing the function of stable fixation and position adjustment of the target support.

[0021] Furthermore, the bracket clamping mechanism 3 has a lifting cylinder limiting member 38, which is locked onto the bracket clamping mechanism base 31.

[0022] As can be seen from the above description, the lifting cylinder limiter 38 restricts the stroke of the support lifting cylinder 32.

[0023] Furthermore, the adjustable dovetail groove mechanism 39 of the bracket has a dovetail groove base 391, a bracket contour block base 392, and a bracket contour block 393; the dovetail groove base 391 is locked to the bracket lifting cylinder 32, the bracket contour block base 392 is locked to the dovetail groove base 391, and the bracket contour block 393 is locked to the bracket contour block base 392.

[0024] As can be seen from the above description, the adjustable dovetail groove mechanism of the bracket can realize the adjustment of multiple shims.

[0025] Furthermore, the plurality of gaskets are a first gasket 35, a second gasket 36, and a third gasket 37; the first gasket 35 is locked between the bracket contour block 393 and the bracket contour block base 392, the second gasket 36 is locked between the bracket contour block base 392 and the dovetail groove base 391, and the third gasket 37 is locked between the rising cylinder limiter 38 and the bracket clamping mechanism base 31.

[0026] As described above, the bracket is equipped with an adjustable dovetail groove mechanism, and the calibration of its front-to-back, left-to-right, and up-to-down positions is also accomplished by adding or removing shims, which effectively improves the debugging efficiency of the welding fixture.

[0027] Furthermore, the product clamping mechanism 2 includes a product clamping cylinder 22, a product clamping mechanism base 21, and a product clamping block 23; the product clamping block 23 is fixed on the product clamping cylinder 22, and the product clamping cylinder 22 is locked on the product clamping mechanism base 21.

[0028] As described above, the product clamping cylinder can stably hold the product and prevent it from shaking during welding.

[0029] Furthermore, it also includes a solenoid valve 6, a relay box 7, and an aviation plug 8; the solenoid valve 6 and the relay box 7 are both locked under the tooling fixture base plate 4, the relay box 7 is connected to the solenoid valve 6 and the aviation plug 8 through a lead wire, and the aviation plug 8 is fixed outside the relay box 7.

[0030] As described above, the solenoid valve controls the opening and closing of the air circuit; the relay box is responsible for centralized management of the circuit to avoid messy wiring; and the aviation connector is used as the interface for connecting the clamp and the equipment.

[0031] Furthermore, it also includes a positioning pin sleeve 9, which is fixed under the tooling fixture base plate 4.

[0032] As can be seen from the above description, the positioning pin sleeve is used for positioning fixtures.

[0033] Furthermore, there are multiple product contour blocks 1, with a spacing of 100-130mm between two adjacent product contour blocks 1.

[0034] As described above, the welding fixture uses an adjustable profile with each profile block spaced 100-130mm apart, ensuring that the profile and dimensions of the product are close at a fixed distance, making it easier to adjust and ensuring stable product fit.

[0035] Furthermore, the product contour block 1 has a product limiting member 13, which is locked onto the contour block base 12.

[0036] As can be seen from the above description, the product limiting component 13 adjusts the side stroke of the contour block fixture.

[0037] Please refer to Figures 1 to 7 Embodiment 1 of this utility model is as follows: A welding fixture for automotive guide rails includes a product contour block 1, a product clamping mechanism 2, and a bracket clamping mechanism 3; the product contour block 1 has a contour block base 12 and a contour block pad 11, and the contour block pad 11 is replaceably pressed and fixed on the contour block base 12. The product clamping mechanism 2 has a product clamping cylinder 22, a product clamping mechanism base 21, and a product clamping block 23. The product clamping block 23 is fixed on the product clamping cylinder 22, and the product clamping cylinder 22 is locked on the product clamping mechanism base 21. The bracket clamping mechanism 3 has a bracket clamping mechanism base 31, a bracket lifting cylinder 32, a bracket adjustable dovetail groove mechanism 39, a bracket clamping cylinder 33, and a bracket clamping plate 34. The bracket lifting cylinder 32 is locked on the bracket clamping mechanism base 31, the bracket adjustable dovetail groove mechanism 39 is locked above the bracket lifting cylinder 32, and the bracket clamping plate 34 is fixed above the bracket clamping cylinder 33. The bracket clamping mechanism 3 has multiple gaskets.

[0038] In this embodiment, the product positioning component 5, the contour block base 12, the product clamping mechanism base 21, and the bracket clamping mechanism base 31 are locked onto the upper part of the tooling fixture base plate 4. Multiple product contour blocks 1 equipped with the welding fixture are distributed at intervals of 100-130mm, and the product limiting components 13 of the product contour blocks 1 are simultaneously locked onto the contour block base 12. The product limiting component 13 clamps a contour block lateral gasket 14 between itself and the contour block base 12, and this gasket is used to adjust the limiting distance of the product limiting component 13. Below the tooling fixture base plate 4, a solenoid valve 6 and a relay box 7 are locked onto the lower part of the tooling fixture base plate 4. The relay box 7 is connected to the solenoid valve 6 via a lead wire and externally fixed to an aviation plug 8. The rising cylinder limiting component 38 of the bracket clamping mechanism 3 is locked onto its own base. Furthermore, the thickness of the contour block gasket 11 and the multiple gaskets on the bracket clamping mechanism is 0.1-1mm.

[0039] In this embodiment, the adjustable dovetail groove mechanism 39 of the bracket has a dovetail groove base 391, a bracket contour block base 392, and a bracket contour block 393. The dovetail groove base 391 is locked to the bracket lifting cylinder 32, the bracket contour block base 392 is locked to the dovetail groove base 391, and the bracket contour block 393 is locked to the bracket contour block base 392. The plurality of shims are a first shim 35, a second shim 36, and a third shim 37. The first shim 35 is locked between the bracket contour block 393 and the bracket contour block base 392, the second shim 36 is locked between the bracket contour block base 392 and the dovetail groove base 391, and the third shim 37 is locked between the lifting cylinder limiting member 38 and the bracket clamping mechanism base 31. The first shim 35 is used to adjust the front and rear position of the adjustable dovetail groove mechanism 39 of the bracket, the second shim 36 is used to adjust the left and right position of the adjustable dovetail groove mechanism 39 of the bracket, and the third shim is used to adjust the up and down position of the adjustable dovetail groove mechanism 39 of the bracket.

[0040] During operation, based on the surface dimensions of the guide rail, a corresponding number of product contour blocks 1 are designed in the upper, middle, and lower areas of the guide rail. The product contour block 1 can be adjusted to fit the guide rail by adding or removing shims of different thicknesses on the contour block shim 11 on the contour block base 12. Then, the guide rail is positioned on the product contour block 1, and the product clamping cylinder 22 drives the product clamping block 23 to move down and clamp the guide rail, so that the guide rail is fixed on the tooling fixture base plate 4. Next, according to the installation position of the bracket, multiple shims on the bracket clamping mechanism 3 are replaced to adjust the front-back, left-right, and height positions of the bracket. The bracket is then assembled onto the bracket adjustable dovetail groove mechanism 39. Then, the bracket lifting cylinder 32 in the bracket clamping mechanism 3 is raised. Finally, the bracket clamping cylinder 33 drives the bracket clamping plate 34 to move down and clamp the bracket.

[0041] In this embodiment, the positioning methods of the guide rail include, but are not limited to, holes, U-shaped openings, and end positioning.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A welding fixture for automotive guide rails, characterized in that, include: Product contour block (1), product clamping mechanism (2), bracket clamping mechanism (3), tooling fixture base plate (4) and product positioning component (5); The product contour block (1), the product clamping mechanism (2), the bracket clamping mechanism (3) and the product positioning component (5) are all locked onto the tooling fixture base plate (4); The product contour block (1) has a contour block base (12) and a contour block pad (11). The contour block pad (11) is replaceably pressed and fixed on the contour block base (12). The contour block base (12) is locked onto the tooling fixture base plate (4). The bracket clamping mechanism (3) has multiple pads.

2. The welding fixture for automotive guide rails according to claim 1, characterized in that, The bracket clamping mechanism (3) has a bracket clamping mechanism base (31), a bracket lifting cylinder (32), a bracket adjustable dovetail groove mechanism (39), a bracket pressing cylinder (33), and a bracket pressing plate (34); the bracket lifting cylinder (32) is locked on the bracket clamping mechanism base (31), the bracket adjustable dovetail groove mechanism (39) is locked above the bracket lifting cylinder (32), the bracket pressing plate (34) is fixed above the bracket pressing cylinder (33), and the bracket pressing cylinder (33) is locked on the bracket adjustable dovetail groove mechanism (39).

3. A welding fixture for automotive guide rails according to claim 2, characterized in that, The bracket clamping mechanism (3) has a lifting cylinder limiting member (38), which is locked onto the bracket clamping mechanism base (31).

4. A welding fixture for automotive guide rails according to claim 3, characterized in that, The adjustable dovetail groove mechanism (39) of the bracket has a dovetail groove base (391), a bracket contour block base (392), and a bracket contour block (393); the dovetail groove base (391) is locked to the bracket lifting cylinder (32), the bracket contour block base (392) is locked to the dovetail groove base (391), and the bracket contour block (393) is locked to the bracket contour block base (392).

5. A welding fixture for automotive guide rails according to claim 4, characterized in that, The plurality of gaskets are a first gasket (35), a second gasket (36), and a third gasket (37); the first gasket (35) is locked between the bracket contour block (393) and the bracket contour block base (392), the second gasket (36) is locked between the bracket contour block base (392) and the dovetail groove base (391), and the third gasket (37) is locked between the rising cylinder limiter (38) and the bracket clamping mechanism base (31).

6. A welding fixture for automotive guide rails according to claim 1, characterized in that, The product clamping mechanism (2) has a product clamping cylinder (22), a product clamping mechanism base (21) and a product clamping block (23); the product clamping block (23) is fixed on the product clamping cylinder (22), and the product clamping cylinder (22) is locked on the product clamping mechanism base (21).

7. A welding fixture for automotive guide rails according to claim 1, characterized in that, It also includes a solenoid valve (6), a relay box (7) and an aviation plug (8); the solenoid valve (6) and the relay box (7) are both locked under the tooling fixture base plate (4), the relay box (7) is connected to the solenoid valve (6) and the aviation plug (8) through a lead wire, and the aviation plug (8) is fixed outside the relay box (7).

8. A welding fixture for automotive guide rails according to claim 1, characterized in that, It also includes a positioning pin sleeve (9), which is fixed under the tooling fixture base plate (4).

9. A welding fixture for automotive guide rails according to claim 1, characterized in that, The product contour block (1) is multiple, and the interval between two adjacent product contour blocks (1) is 100-130mm.

10. A welding fixture for automotive guide rails according to claim 1, characterized in that, The product contour block (1) has a product limiting member (13), which is locked onto the contour block base (12).

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