Detection jig for automobile steering wheel tubular column assembly

Abstract

The utility model relates to the field of mechanical tools, in particular to a detection jig for an automobile steering wheel tubular column assembly. The positioning device comprises a bottom plate, a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly comprises a positioning block and a first detection pin, the second positioning assembly comprises a support and a second detection pin, and the third positioning assembly comprises a stand column and a third detection pin. Through the structural design, multi-position accurate detection of the automobile steering wheel tubular column assembly can be realized, the detection efficiency and accuracy are improved, and the product quality is ensured.

Description

Technical Field

[0001] This application relates to the field of mechanical tooling, and in particular to a testing fixture for an automotive steering column assembly. Background Technology

[0002] The steering column assembly plays a crucial role in modern automobile manufacturing, primarily used to mount steering wheel components and ensure driving safety and comfort. The steering column assembly typically consists of components such as the column and mounting plate. The mounting plate connects to the vehicle frame, while the column requires high-precision machining to accommodate the installation requirements of various steering wheel components. To ensure the overall assembly quality and performance of the vehicle, the inspection of the steering column assembly is particularly important. However, traditional inspection methods have many shortcomings in terms of efficiency and accuracy, and cannot fully meet the needs of modern high-efficiency production.

[0003] Among commonly used technologies, the main inspection methods include manual measurement and multi-tool inspection. Manual measurement relies on the operator's experience and skill level. Although it is low-cost, it is prone to human error, leading to inconsistent results. Multi-tool inspection uses multiple specialized inspection tools to check the positional accuracy of the tubing, mounting plate, and working holes. While this method improves accuracy, the need for frequent tool changes increases operational complexity, significantly extends inspection time, and reduces production efficiency.

[0004] Therefore, the main problem is that traditional inspection methods, whether manual measurement or multi-tool inspection, struggle to achieve rapid and accurate comprehensive inspection of the steering column assembly. These methods are not only time-consuming but also prone to introducing cumulative errors during multi-stage inspections, affecting the quality of the final product. Therefore, there is an urgent need for a highly efficient inspection device capable of completing comprehensive inspection of the column, mounting plate, and working holes in a short time, thereby improving overall production efficiency and product consistency. Utility Model Content

[0005] In order to improve the inspection efficiency and production efficiency of the steering column assembly, this application provides a testing fixture for automotive steering column assemblies.

[0006] The automotive steering column assembly testing fixture provided in this application adopts the following technical solution:

[0007] A testing fixture for an automotive steering wheel column assembly, the column assembly including a column body and a mounting plate, the mounting plate having mounting holes and the column body having working holes, including a base plate and a first positioning component, a second positioning component and a third positioning component disposed on the base plate;

[0008] The first positioning component includes a positioning block and a first detection pin disposed on the positioning block. The end of the tubing is placed on the positioning block, and the first detection pin abuts against the end of the tubing body.

[0009] The second positioning component includes a bracket and a second detection pin disposed on the bracket, the second detection pin engaging with a mounting hole in the mounting plate;

[0010] The third positioning component includes a column and a third detection pin disposed on the column, the third detection pin cooperating with a working hole.

[0011] By adopting the above technical solution, a first positioning component is used to accurately position the tubular column via a first detection pin; then a second positioning component is used to detect the position of the mounting plate via a second detection pin. Furthermore, a third detection pin is used to detect the position of the working hole. Therefore, by integrating these three positioning components onto the same base plate, the machining accuracy of the mounting plate, tubular column, and working hole can be simultaneously detected, effectively improving inspection efficiency.

[0012] In addition, the mounting plate can be inspected by precisely positioning the tubing and the working hole; or the working hole can be inspected by precisely positioning the tubing and the mounting plate.

[0013] Preferably, the column body is further provided with a combination switch fixing plate; the first positioning component also includes a reference block; the combination switch fixing plate is located between the reference block and the positioning block, and the end face of the combination switch fixing plate abuts against the reference block.

[0014] By adopting the above technical solution, a reference block design is added, allowing both ends of the tubing to be placed on the reference block and the positioning block respectively, ensuring that the fixing plate abuts against the reference block. This design not only improves the positioning stability of the tubing but also further enhances the accuracy of the entire testing fixture, thereby improving the testing efficiency and reliability of the tubing assembly.

[0015] Preferably, the combination switch fixing plate has a mounting hole, and the reference block is provided with a positioning pin that mates with the mounting hole.

[0016] By adopting the above technical solution, the positioning pin and the mounting hole can be used to further position and test the combination switch fixing plate.

[0017] Preferably, the reference block is also provided with a receiving groove for the tube column to pass through.

[0018] By adopting the above technical solution, the arrangement of the receiving groove facilitates the placement of the tubular column.

[0019] Preferably, the positioning block is V-shaped and has two positioning heads, each of which has a through hole for the first detection pin to pass through, and the two through holes are located on the same straight line.

[0020] By adopting the above technical solution, the positioning block is V-shaped and has two positioning heads, which makes the tube column more stable during positioning and reduces detection errors caused by positioning deviations. Both positioning heads have through holes for the first detection pin to pass through, and the two through holes are on the same straight line, ensuring that the first detection pin can be accurately inserted into the end of the tube column, further improving the positioning accuracy of the tube column, thereby enhancing the reliability and accuracy of the entire detection process.

[0021] Preferably, the column includes a fixed column and a movable column, the movable column is rotatably connected to the fixed column, and the third detection pin is disposed on the movable column.

[0022] By adopting the above technical solution, the third detection pin is set on the movable column, so that the angle of the third detection pin can be adjusted as the movable column rotates, so as to place the tube column body on the inspection tool and realize the inspection of the tube column body assembly.

[0023] Preferably, the column body is also provided with a steering wheel cover fixing plate, and the steering wheel cover fixing plate is also provided with mounting holes; the third positioning component also includes a fourth detection pin, which is provided on the column and is inserted into the mounting holes of the steering wheel cover fixing plate.

[0024] By adopting the above technical solution, the fourth inspection pin positions and inspects the steering wheel cover fixing plate, improving the comprehensiveness and accuracy of the inspection, thereby further enhancing the inspection efficiency and quality control level of the column assembly.

[0025] Preferably, it also includes a support block, on which an arc-shaped support groove is formed that fits against the side wall of the column body.

[0026] By adopting the above technical solution, the support block makes the tubular column more stable during the testing process, avoiding the impact of tubular column shaking on the accuracy of the test results. In particular, the arc-shaped support groove on the support block, which fits against the side wall of the tubular column, effectively increases the contact area between the tubular column and the support block, further improving the stability of the tubular column and ensuring the accuracy and reliability of the testing process.

[0027] Preferably, the tube column assembly further includes an ignition lock fixing plate disposed on the tube column body, the ignition lock fixing plate is provided with a mounting hole, and the support block is provided with a cylindrical pin that is inserted into the mounting hole.

[0028] By adopting the above technical solution, the position detection of the ignition lock fixing plate can be achieved through the cylindrical pin, thereby further improving the detection efficiency of the tube column assembly.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By integrating the first positioning component, the second positioning component, and the third positioning component onto the same base plate, simultaneous detection of the pipe column, mounting plate, and working hole is achieved, which greatly improves detection efficiency, shortens detection time, and enhances production efficiency;

[0031] 2. The first detection pin of the first positioning component can accurately position the end of the pipe column, ensuring the installation position accuracy of the pipe column, reducing human error, and improving the accuracy of detection;

[0032] 3. The second detection pin of the second positioning component and the third detection pin of the third positioning component accurately detect the position of the mounting plate and the working hole, respectively, effectively avoiding the cumulative error in the traditional multi-tool detection process and improving the consistency and reliability of the detection results. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the automotive steering column assembly in the embodiments of this application;

[0034] Figure 2 This is a schematic diagram of the structure of the automotive steering column assembly testing fixture in the embodiments of this application;

[0035] Figure 3 This is a schematic diagram showing the fit between the tubing assembly and the testing fixture in an embodiment of this application.

[0036] The following are labels in the attached diagram: 1. Pipe column; 11. Working hole; 2. Mounting plate; 3. Ignition lock fixing plate; 4. Steering wheel cover fixing plate; 5. Combination switch fixing plate; 6. Base plate; 61. Support block; 611. Support groove; 62. Cylindrical pin; 7. First positioning assembly; 71. Positioning block; 711. Positioning head; 712. Through hole; 72. First detection pin; 73. Reference block; 731. Receiving groove; 74. Positioning pin; 8. Second positioning assembly; 81. Bracket; 82. Second detection pin; 9. Third positioning assembly; 91. Column; 911. Fixed column; 912. Movable column; 92. Third detection pin; 93. Fourth detection pin. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0038] The automotive steering column assembly testing fixture provided in this application embodiment is used to test the processing quality of the steering column assembly.

[0039] Reference Figure 1 This describes the structure of the steering column assembly. Specifically, it includes a column body 1, a mounting plate 2 welded to the column body 1, an ignition lock mounting plate 3, a steering wheel cover mounting plate 4, and a combination switch mounting plate 5. The mounting plate 2 is used for fixed connection to the vehicle frame and has mounting holes for bolts and other fasteners. The ignition lock mounting plate 3 is used to connect the ignition lock and also has mounting holes. An ignition lock working hole 11 is provided on the side wall of the column body 1 for passing the ignition lock wires. The steering wheel cover mounting plate 4 is used to connect the steering wheel cover. The combination switch mounting plate 5 is used to install the steering wheel multifunction buttons (horn buttons, etc.).

[0040] Reference Figure 2 and Figure 3 In order to perform the inspection of the above-mentioned column assembly, the automotive steering wheel column assembly inspection fixture in this application specifically includes a base plate 6 and a first positioning component 7, a second positioning component 8 and a third positioning component 9 disposed on the base plate 6, the three positioning components working together.

[0041] Specifically, the first positioning component 7 includes a positioning block 71, a first detection pin 72, a reference block 73, and a positioning pin 74. The reference block 73 and the positioning block 71 are arranged opposite to each other, one end of the tube column 1 is placed on the positioning block 71, the reference block 73 is provided with a receiving groove, and the other end of the tube column 1 is located in the receiving groove.

[0042] To achieve lateral positioning of the column body 1, a combination switch fixing plate 5 is positioned between the reference block 73 and the positioning block 71 and abuts against the reference block 73, while a first detection pin 72 is positioned on the reference block 73 and abuts against the end of the column body 1. The first detection pin 72 and the combination switch fixing plate 5 can restrict the lateral movement of the column body 1. At the same time, the first detection pin 72 can detect whether the length of the column body 1 between the reference block 73 and the positioning block 71 meets the requirements, thereby detecting whether the position of the combination switch fixing plate 5 meets the requirements.

[0043] Furthermore, the positioning block 71 is V-shaped and has two positioning heads 711. Each positioning head 711 has a through hole 712 for the first detection pin 72 to pass through, and the two through holes 712 are located on the same straight line. This V-shaped design allows the column body 1 to be stably placed on the positioning block 71. The first detection pin 72 can slide within the two through holes 712 for easy detection.

[0044] The second positioning component 8 includes a bracket 81 and a second detection pin 82 disposed on the bracket 81. The mounting plate 2 can be placed on the bracket 81, and the second detection pin 82 cooperates with the mounting hole on the mounting plate 2 to realize the detection of the position of the mounting plate 2.

[0045] The third positioning component 9 includes a column 91, a third detection pin 92, and a fourth detection pin 93. Two columns 91 are provided; one column 91 is fixed and fixedly connected to the base plate 6, while the other column 91 includes a fixed column 911 and a movable column 912. The fixed column 911 is fixedly connected to the base plate 6, and the movable column 912 is rotatably connected to the fixed column 911, making this column 91 a movable column 91.

[0046] The third detection pin 92 can be installed on either the fixed column 91 or the movable column 91. In this application, the third detection pin 92 is installed on the fixed column 91, while the fourth detection pin 93 is installed on the movable column 91.

[0047] The third detection pin 92 engages with the working hole 11 to detect the positional accuracy of the working hole 11. The fourth detection pin 93 engages with the mounting hole on the steering wheel cover mounting plate 4 to detect the position of the steering wheel cover mounting plate 4.

[0048] In addition, a support block 61 can be added to the base plate 6. The support block 61 has an arc-shaped support groove 611 that fits against the side wall of the tube column 1. The support block 61 can be made of rubber or polyurethane material, which has a good cushioning effect and will not scratch the surface of the tube column 1. This can further increase the stability of the tube column 1 and reduce errors in the testing process.

[0049] The position of the support block 61 corresponds to the position of the ignition lock fixing plate 3, so that the ignition lock fixing plate 3 can be placed on the support block 61. The support block 61 is also provided with a cylindrical pin 62, which can be inserted and matched with the mounting hole on the ignition lock fixing plate 3, thereby realizing the position detection of the ignition lock fixing plate 3.

[0050] By integrating the first positioning component 7, the second positioning component 8, and the third positioning component 9 onto the same base plate 6, the inspection of the pipe column 1, the mounting plate 2, and the working hole 11 can be completed in one operation. Specifically, the first positioning component 7 ensures the precise position of the pipe column 1 through the V-shaped positioning block 71 and the first detection pin 72; the second positioning component 8 ensures the positional accuracy of the mounting plate 2 through the bracket 81 and the second detection pin 82; and the third positioning component 9 ensures the positional accuracy of the working hole 11 through the column 91 and the third detection pin 92. Furthermore, the support block 61 further improves the stability of the pipe column 1 and reduces errors during the inspection process. This method not only simplifies the inspection process and improves inspection efficiency but also ensures the accuracy of the inspection results, thereby improving overall production efficiency and product quality.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A testing fixture for an automotive steering column assembly, the column assembly comprising a column body (1) and a mounting plate (2), the mounting plate (2) having mounting holes and the column body (1) having working holes (11), characterized in that: It includes a base plate (6) and a first positioning component (7), a second positioning component (8) and a third positioning component (9) disposed on the base plate (6). The first positioning component (7) includes a positioning block (71) and a first detection pin (72) disposed on the positioning block (71). The end of the column is placed on the positioning block (71), and the first detection pin (72) abuts against the end of the column body (1). The second positioning component (8) includes a bracket (81) and a second detection pin (82) disposed on the bracket (81), the second detection pin (82) engaging with the mounting hole of the mounting plate (2); The third positioning component (9) includes a column (91) and a third detection pin (92) disposed on the column (91), the third detection pin (92) cooperating with the working hole (11).

2. The automotive steering column assembly testing fixture according to claim 1, characterized in that: The column body (1) is also provided with a combination switch fixing plate (5); the first positioning component (7) also includes a reference block (73); the combination switch fixing plate (5) is located between the reference block (73) and the positioning block (71), and the end face of the combination switch fixing plate (5) abuts against the reference block (73).

3. The automotive steering column assembly testing fixture according to claim 2, characterized in that: The combination switch fixing plate (5) has a mounting hole, and the reference block (73) is provided with a positioning pin (74) that cooperates with the mounting hole.

4. The automotive steering column assembly testing fixture according to claim 2, characterized in that: The reference block (73) is also provided with a receiving groove for the column body (1) to pass through.

5. The automotive steering column assembly testing fixture according to claim 1, characterized in that: The positioning block (71) is V-shaped and has two positioning heads (711). Both positioning heads (711) have through holes (712) for the first detection pin (72) to pass through, and the two through holes (712) are located on the same straight line.

6. The automotive steering column assembly testing fixture according to claim 1, characterized in that: The column (91) includes a fixed column (911) and a movable column (912), the movable column (912) is rotatably connected to the fixed column (911), and the third detection pin (92) is provided on the movable column (912).

7. The automotive steering column assembly testing fixture according to claim 1, characterized in that: The column body (1) is also provided with a steering wheel cover fixing plate (4), and the steering wheel cover fixing plate (4) is also provided with mounting holes; the third positioning component (9) also includes a fourth detection pin (93), which is located on the column (91) and is inserted into the mounting holes of the steering wheel cover fixing plate (4).

8. The automotive steering column assembly testing fixture according to claim 1, characterized in that: It also includes a support block (61), on which an arc-shaped support groove (611) is provided that fits against the side wall of the column.

9. The automotive steering column assembly testing fixture according to claim 8, characterized in that: The tube column assembly also includes an ignition lock fixing plate (3) provided on the tube column body (1), the ignition lock fixing plate (3) is provided with a mounting hole, and the support block (61) is provided with a cylindrical pin (62) that is inserted into the mounting hole.

Images