A welding positioning fixture for a vehicle body steering support structure

Abstract

This utility model discloses a welding positioning fixture for a vehicle body steering support structure, relating to the field of positioning fixture technology. The welding positioning fixture for a vehicle body steering support structure includes a welding platform and welding fixtures. The welding platform has a supporting function; multiple welding fixtures are provided, each detachably mounted on the welding platform. The multiple welding fixtures cooperate to position and assemble the main beam and each mounting bracket into a vehicle body steering support structure. This utility model provides convenience for manually welding vehicle body steering support structures by combining independent welding fixtures on the welding platform to position and assemble the main beam and each mounting bracket into a vehicle body steering support structure, ensuring the relative position of each mounting bracket to the main beam and improving welding quality.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, and in particular to a welding positioning fixture for a vehicle body steering support structure. Background Technology

[0002] With the rapid development of the automotive industry, the requirements for safety, handling, and comfort in automotive design are constantly increasing. The automotive steering support assembly is an important component of the automotive body structure, consisting of numerous parts that need to be accurately matched with components such as the steering system, instrument panel, air conditioning, and airbags, while also participating in the transfer of collision energy.

[0003] In actual production, the structural design of automotive steering support assemblies varies across different vehicle models, primarily consisting of a main beam and other side mounting brackets. Welding, as the core means of achieving structural connections, plays a crucial role in the manufacturing of automotive steering support assemblies. A well-designed weld not only ensures the strength and rigidity of the connection points but also effectively controls deformation, improves dimensional accuracy, and ultimately enhances the overall vehicle assembly consistency and safety performance. Even though automated welding technology has become mainstream, manual welding still plays an irreplaceable role in small-batch production, trial production, and structural detail processing. To ensure the relative stability of the parts during manual welding, locating pins and clamping mechanisms are essential. Therefore, there is an urgent need to design a welding positioning fixture for the vehicle body steering support structure to ensure the accuracy of part positioning during the welding process. Utility Model Content

[0004] The purpose of this invention is to provide a welding positioning fixture for a vehicle body steering support structure, in order to solve the problems existing in the prior art and improve the welding quality of the vehicle body steering support structure.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a welding positioning fixture for a vehicle body steering support structure, comprising: a welding platform and welding fixtures. The welding platform has a supporting function; multiple welding fixtures are provided, and the welding fixtures are detachably mounted on the welding platform. The multiple welding fixtures cooperate to position and assemble the main beam and each mounting bracket into a vehicle body steering support structure.

[0007] In some embodiments, each of the welding fixtures includes a support member, a unit block, and a positioning member. The support member is detachably mounted on the welding platform. A plurality of unit blocks are provided. The positioning member is mounted on the unit block. The unit block with the positioning member is directly and detachably connected to the support member or indirectly and detachably connected to the support member through other unit blocks. The positioning member is used to position the main beam or the mounting bracket.

[0008] In some embodiments, at least a portion of the welding fixture includes a pressure rod, a locking member, and a hinge. The positioning member is mounted on the pressure rod, and one end of the pressure rod is hinged to the support member via the hinge to enable the pressure rod to be pressed down to a locked state and raised to an open state. The locking member is capable of locking the pressure rod in the locked state to the support member or unlocking it.

[0009] The positioning element on the pressure rod, when in the fastened or locked state, is used to position the main beam or the mounting bracket;

[0010] The positioning element on the pressure bar, when in the open state, is away from the main beam or the mounting bracket.

[0011] In some embodiments, the support includes an L-shaped base and an upright plate. The base plate of the L-shaped base is fixed to the welding platform by bolts. The upright plate is detachably connected to the vertical plate of the L-shaped base. The unit block with the positioning element installed is directly detachably connected to the upright plate or indirectly detachably connected to the upright plate through other unit blocks.

[0012] In some embodiments, the spacing between two connected unit blocks, and between a connected vertical plate and a unit block, can be adjusted by means of an adjusting shim disposed between them.

[0013] In some embodiments, the positioning element includes one or more of a cylindrical positioning pin, a T-shaped positioning pin, and a positioning block. The cylindrical positioning pin and the T-shaped positioning pin are used to be inserted into the positioning holes of the main beam or the mounting bracket to achieve positioning, and the positioning block is used to abut against the surface of the main beam or the mounting bracket to achieve positioning.

[0014] In some embodiments, the shape of the portion of the positioning block used to abut against the main beam or the mounting bracket is the same as the shape and size of the portion of the main beam or the mounting bracket that is abutted.

[0015] In some embodiments, the bottom of the welding platform is provided with rollers.

[0016] In some embodiments, a fixing plate is further included, which is detachably mounted on the welding platform, and one or more welding fixtures can be mounted on each fixing plate.

[0017] In some embodiments, the locking member includes a handwheel and a fixing rod. One end of the fixing rod is fixedly connected to the center of the handwheel, and the outer wall near the other end is provided with a thread. The pressure rod is provided with a through hole, and the support member is provided with a threaded hole. When the pressure rod is in the locked state, the threaded hole and the through hole are coaxially arranged. The fixing rod passes through the through hole, and the threaded end of the fixing rod can be threadedly connected to the threaded hole.

[0018] The present invention achieves the following technical advantages over the prior art:

[0019] 1. This utility model provides convenience for manually welding the vehicle body steering support structure. By combining independent welding fixtures on the welding platform, the main beam and each mounting bracket are positioned and assembled into the vehicle body steering support structure, ensuring the relative position of each mounting bracket and the main beam and improving the welding quality.

[0020] 2. The welding positioning fixture for the vehicle body steering support structure provided by this utility model can move freely and is not limited by the site, thus improving the flexibility of use.

[0021] 3. Each welding fixture can be freely disassembled and combined. In addition, by replacing different sized unit blocks or different numbers of unit blocks, different specifications of steering support structures can be adapted, thereby improving the welding efficiency of workers and reducing their labor intensity. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a welding positioning fixture for a vehicle body steering support structure.

[0024] Figure 2 This is a schematic diagram of a single welding fixture in a welding positioning fixture for a vehicle body steering support structure.

[0025] Figure 3 This is a schematic diagram of a type of vehicle body steering support structure.

[0026] Figure 4 for Figure 3 A schematic diagram of a mounting bracket fixed to a welding fixture in the vehicle body steering support structure.

[0027] Figure 5 for Figure 3A schematic diagram of the second type of mounting bracket in the vehicle body steering support structure, which is fixed on a welding fixture.

[0028] Figure 6 for Figure 3 A schematic diagram of the third type of mounting bracket in the vehicle body steering support structure, which is fixed on a welding fixture.

[0029] In the diagram: 1-Roller; 2-Welding platform; 3-Welding fixture; 4-Main beam; 5-Mounting bracket; 6-Fixing plate; 301-L-seat; 302-Upright plate; 303-Hinge; 304-Unit block; 305-Pressure rod; 306-Handwheel; 307-Cylindrical positioning pin; 308-Limit block; 309-Adjusting shim; 310-Bolt; 311-T-type positioning pin; 312-Positioning block. Detailed Implementation

[0030] 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.

[0031] The purpose of this invention is to provide a welding positioning fixture for a vehicle body steering support structure, in order to solve the problems existing in the prior art and improve the welding quality of the vehicle body steering support structure.

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The following is combined Figures 1 to 6 The following describes embodiments of the present invention.

[0034] This utility model provides a welding positioning fixture for a vehicle body steering support structure, including a welding platform 2 and welding fixtures 3. The welding platform 2 has a supporting function; multiple welding fixtures 3 are provided, and the welding fixtures 3 are detachably mounted on the welding platform 2. The multiple welding fixtures 3 cooperate to position and assemble the main beam 4 and each mounting bracket 5 into a vehicle body steering support structure.

[0035] This utility model provides convenience for manually welding the vehicle body steering support structure. By combining independent welding fixtures 3 on the welding platform 2, the main beam 4 and each mounting bracket 5 are positioned and assembled into the vehicle body steering support structure, ensuring the relative position of each mounting bracket 5 and the main beam 4, and improving the welding quality.

[0036] Furthermore, each welding fixture 3 in this embodiment can be freely disassembled and assembled, which allows each welding fixture 3 to be fixed in a different position according to the different body steering support structures to be clamped and positioned, thereby adapting to more types of body steering support structures.

[0037] In some embodiments, each welding fixture 3 includes a support member, a unit block 304, and a positioning member. The support member is detachably mounted on the welding platform 2. Several unit blocks 304 are provided. The positioning member is mounted on the unit block 304. The unit block 304 with the positioning member is directly and detachably connected to the support member or indirectly and detachably connected to the support member through other unit blocks 304. The positioning member is used to position the main beam 4 or the mounting bracket 5.

[0038] In this embodiment, different sizes or numbers of unit blocks 304 can be replaced to adapt to different specifications of steering support structures, thereby improving worker welding efficiency and reducing their labor intensity.

[0039] Understandably, the size and shape of the unit blocks 304 are not exactly the same. The unit block 304 essentially serves as a distance compensation function and a support positioning component to prevent the positioning component from being unable to position the vehicle body steering support structure at a certain location due to the limitation of the support component's shape. In other words, the form of multiple unit blocks 304 that can be detached, connected, and combined is similar to "building blocks". This enables the use of unit blocks 304 with simple shapes to construct support blocks with complex structures, thereby better supporting the positioning component and enabling the positioning component to position the vehicle body steering support structure.

[0040] In some examples, unit block 304 is mostly a cuboid or cube structure.

[0041] In some examples, unit block 304 and the support member, as well as unit blocks 304 to each other, can be connected by detachable connection structures such as bolts or clips. Of course, in some examples, when a manufacturer specializes in producing a specific type of vehicle body steering support structure, since there is no need to improve the applicability of the tooling, unit blocks 304 and the support member, as well as unit blocks 304 to each other, can be permanently fixed by welding or other methods.

[0042] In some embodiments, at least part of the welding fixture 3 includes a pressure rod 305, a locking member, and a hinge 303. A positioning member is installed on the pressure rod 305. One end of the pressure rod 305 is hinged to a support member through the hinge 303 so that the pressure rod 305 can be pressed down to a locked state and raised to an open state. The locking member can lock the pressure rod 305 in the locked state to the support member or unlock it.

[0043] The positioning element on the pressure rod 305, which is in the snap-fit ​​or locked state, is used to position the main beam 4 or the mounting bracket 5.

[0044] The positioning element on the pressure bar 305, which is in the open state, is away from the main beam 4 or the mounting bracket 5.

[0045] In the solution provided in this embodiment, the opening and closing pressure rod 305 structure is used to support the positioning component, which provides more positioning methods for users to choose from, thereby adapting to more types of mounting brackets 5. In addition, the pressure rod 305 in the open state is for easy insertion and removal of the main beam 4 or mounting bracket 5.

[0046] In some examples, unit blocks 304 can also be installed on the pressure bar 305, and then positioning elements can be installed on the unit blocks 304. In short, in this specification, both the unit blocks 304 and the pressure bars 305 are used to meet the requirements of the positioning elements. Since the position of the positioning elements is determined by the structure of the main beam 4 or the mounting bracket 5 to be clamped and positioned, the shape and installation method of the unit blocks 304 and the pressure bars 305 are determined by the structure of the main beam 4 or the mounting bracket 5 to be clamped and positioned.

[0047] In some examples, the shapes of the various pressure bars 305 are not exactly the same.

[0048] In some embodiments, the support includes an L-shaped base 301 and an upright plate 302. The base plate of the L-shaped base 301 is fixed to the welding platform 2 by bolts 310. The upright plate 302 is detachably connected to the vertical plate of the L-shaped base 301. The unit block 304 with positioning elements is directly and detachably connected to the upright plate 302 or indirectly and detachably connected to the upright plate 302 through other unit blocks 304.

[0049] In this embodiment, L-shaped base 301 is a standard part, while upright plate 302 is a non-standard part. Upright plate 302 can be customized according to the main beam 4 or mounting bracket 5 with different structures. Since the cost of standard parts with the same structure is usually lower than that of non-standard parts, but it is not possible to set all the support parts to the same structure, the purpose of using some as standard parts and others as non-standard parts is to reduce costs and improve the positioning accuracy.

[0050] In some embodiments, the spacing between two connected unit blocks 304, and between connected vertical plates 302 and unit blocks 304, can be adjusted by adjusting shims 309 disposed between them.

[0051] This embodiment offers the possibility of further improving the accuracy of positioning.

[0052] In some examples, the thickness and shape of the adjusting shim 309 are not exactly the same.

[0053] Understandably, there are various types of adjustment shims 309 of different thicknesses and shapes available on-site for clamping and positioning, in order to meet the precise positioning requirements at different locations.

[0054] In some embodiments, the positioning element includes one or more of a cylindrical positioning pin 307, a T-shaped positioning pin 311, and a positioning block 312. The cylindrical positioning pin 307 and the T-shaped positioning pin 311 are used to be inserted into the positioning holes of the main beam 4 or the mounting bracket 5 to achieve positioning, and the positioning block 312 is used to abut against the surface of the main beam 4 or the mounting bracket 5 to achieve positioning.

[0055] It should be noted that the positioning holes are pre-drilled holes on the main beam 4 or mounting bracket 5 in the previous process.

[0056] This embodiment provides the types of positioning elements. It is understood that in some instances, the ends of cylindrical positioning pins 307 and T-shaped positioning pins 311 can also be used to abut against the surface of the main beam 4 or the mounting bracket 5 to achieve positioning.

[0057] Preferably, the shape of the part of the positioning block 312 used to abut against the main beam 4 or the mounting bracket 5 is the same as the shape and size of the part of the main beam 4 or the mounting bracket 5 that is abutted.

[0058] This embodiment reduces stress concentration caused by clamping, thereby reducing damage to the product.

[0059] In addition, the cylindrical locating pin 307 and the T-shaped locating pin 311 can also be fixed to the locating block 312, such as Figure 5 As shown.

[0060] It should be noted that the cylindrical locating pin 307 and the T-shaped locating pin 311 are flexible in their use. They can be pre-installed on the unit block, support, pressure rod, or locating block 312 and then inserted into the locating hole to position the workpiece. Alternatively, the workpiece can be placed on a welding fixture without the locating pin installed, and then the locating pin can be inserted into the hole on the unit block, support, pressure rod, or locating block 312 after passing through the locating hole of the workpiece to achieve the positioning of the workpiece.

[0061] In some embodiments, the bottom of the welding platform 2 is provided with rollers 1.

[0062] The welding positioning fixture for the vehicle body steering support structure provided in this embodiment can move freely without being restricted by the site, thus improving the flexibility of use.

[0063] In some embodiments, the present invention also includes a fixing plate 6, which is detachably mounted on the welding platform 2, and one or more welding fixtures 3 can be mounted on each fixing plate 6.

[0064] In this embodiment, considering that the fixed position of the welding fixture 3 is not unique, if the welding fixture 3 is directly fixed to the welding platform 2 using bolts 310, many threaded holes or through holes need to be pre-drilled on the welding platform 2. However, it is still difficult to meet the purpose of setting the welding fixture 3 at any position. Based on this, this embodiment indirectly fixes the welding fixture 3 to the welding platform 2 through the fixing plate 6. Only a number of threaded holes need to be arrayed on the welding platform 2. The fixing plate 6 can be fixed to the welding platform 2 at different positions by bolts 310 to achieve coarse adjustment of the position of the welding fixture 3. Fine adjustment of the position of the welding fixture 3 is achieved by opening threaded holes at corresponding positions on the fixing plate 6. It can be understood that the threaded holes on the fixing plate 6 can be opened after the required position of the positioning component is determined. This uses reverse thinking to achieve the most accurate determination of the position of the positioning component, thereby improving the positioning accuracy.

[0065] When it is necessary to position the vehicle body steering support structure with different structures or to change the position of the positioning component, there is no need to change the position of the fixing plate 6. You can directly open a threaded hole in the corresponding position of the fixing plate 6 or directly replace another fixing plate 6 with a threaded hole in the corresponding position.

[0066] On the other hand, the cost of replacing a single fixing plate 6 is far less than that of replacing the welding platform 2. Therefore, when the function of the fixing plate 6 is affected by too many threaded holes, the entire fixing plate 6 can be replaced.

[0067] In summary, the solution provided in this embodiment achieves a higher precision clamping effect at a lower cost.

[0068] In some embodiments, the locking member includes a handwheel 306 and a fixing rod. One end of the fixing rod is fixedly connected to the center of the handwheel 306, and the outer wall near the other end is provided with a thread. The pressure rod 305 is provided with a through hole, and the support member is provided with a threaded hole. When the pressure rod 305 is in the locked state, the threaded hole and the through hole are coaxially arranged, the fixing rod passes through the through hole, and the threaded end of the fixing rod can be threadedly connected to the threaded hole.

[0069] This embodiment provides a locking component structure. The fixing rod is threaded into the threaded hole to lock the pressure rod 305. The fixing rod is unscrewed from the threaded hole to release the lock.

[0070] In some embodiments, a limiting block 308 is provided on one side of the support member for fastening the pressure rod. When the pressure rod is fastened, the bottom of the pressure rod abuts against the top of the limiting block 308. In other words, the limiting block 308 is used to position the pressure rod in the fastened state to prevent it from moving excessively.

[0071] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A body roll support structure welding positioning fixture tool characterized by: include: The welding platform has a supporting function; Multiple welding fixtures are provided. The welding fixtures are detachably mounted on the welding platform. The multiple welding fixtures work together to position the main beam and each mounting bracket and assemble them into a vehicle body steering support structure.

2. The vehicle body roll support structure welding fixture of claim 1, wherein: Each of the welding fixtures includes a support, a unit block, and a positioning element. The support is detachably mounted on the welding platform. Several unit blocks are provided. The positioning element is mounted on the unit block. The unit block with the positioning element is directly and detachably connected to the support or indirectly and detachably connected to the support through other unit blocks. The positioning element is used to position the main beam or the mounting bracket.

3. The vehicle body roll support structure welding fixture of claim 2, wherein: At least part of the welding fixture includes a pressure rod, a locking member, and a hinge. The positioning member is mounted on the pressure rod. One end of the pressure rod is hinged to the support member through the hinge to enable the pressure rod to be pressed down to a locked state and raised to an open state. The locking member can lock the pressure rod in the locked state to the support member or unlock it. The positioning element on the pressure rod, when in the fastened or locked state, is used to position the main beam or the mounting bracket; The positioning element on the pressure bar, when in the open state, is away from the main beam or the mounting bracket.

4. The vehicle body roll support structure welding fixture of claim 2, wherein: The support includes an L-shaped base and an upright plate. The base plate of the L-shaped base is fixed to the welding platform by bolts. The upright plate is detachably connected to the vertical plate of the L-shaped base. The unit block with the positioning component installed is directly detachably connected to the upright plate or indirectly detachably connected to the upright plate through other unit blocks.

5. The vehicle body roll support structure welding fixture of claim 4, wherein: The spacing between two connected unit blocks, and between the connected vertical plate and the unit block, can be adjusted by adjusting shims placed between them.

6. The vehicle body roll support structure welding fixture of claim 2, wherein: The positioning component includes one or more of a cylindrical positioning pin, a T-shaped positioning pin, and a positioning block. The cylindrical positioning pin and the T-shaped positioning pin are used to be inserted into the positioning holes of the main beam or the mounting bracket to achieve positioning, and the positioning block is used to abut against the surface of the main beam or the mounting bracket to achieve positioning.

7. The vehicle body roll support structure welding fixture of claim 6, wherein: The shape of the part of the positioning block used to abut against the main beam or the mounting bracket is the same as the shape and size of the part of the main beam or the mounting bracket that is abutted.

8. The vehicle body roll support structure welding fixture of claim 1, wherein: The welding platform is equipped with rollers at its bottom.

9. The vehicle body roll support structure welding fixture of claim 1, wherein: It also includes a fixing plate, which is detachably mounted on the welding platform, and each fixing plate can be equipped with one or more welding fixtures.

10. The vehicle body roll support structure welding fixture of claim 3, wherein: The locking component includes a handwheel and a fixing rod. One end of the fixing rod is fixedly connected to the center of the handwheel, and the outer wall near the other end is provided with a thread. The pressure rod is provided with a through hole, and the support member is provided with a threaded hole. When the pressure rod is in the locked state, the threaded hole and the through hole are coaxially arranged. The fixing rod passes through the through hole, and the threaded end of the fixing rod can be threadedly connected to the threaded hole.

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