A detection device for a lower shell of a steering wheel of a vehicle
Patent Information
- Application Number
- CN202522703447.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-20
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-20
AI Technical Summary
[0005]针对现有技术的不足，本申请提供了一种汽车方向盘下壳的检测装置，克服了现有技术的不足，旨在解决现有技术中，对汽车方向盘下壳孔位的检测主要依赖工作人员手持测量尺测量孔的位置坐标，再通过游标卡尺逐个测量孔的内径、深度等尺寸参数，这种手动测量的方式存在个人操作误差影响测量结果，检测精度和效率有待提高的问题
1.将方向盘下壳放置在检测架顶部，利用四组固定钉一分别穿过方向盘下壳和检测架四角的定位孔进行初步定位固定，通过将若干组通止规插入对应的检测孔后，根据若干组检测孔与相连接的通止规的外壁之间的间隙来判断检测孔是否合格，本申请通过四组固定钉一将方向盘下壳固定在检测架的顶部，无需工作人员反复调整工件位置，确保了方向盘下壳的位置精度和稳定性，然后通过观察通止规即可直观判断出检测孔的检测结果，无需复杂读数，提高了检测效率。
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Figure CN224905924U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive parts testing technology, and in particular to a testing device for the lower shell of an automotive steering wheel. Background Technology
[0002] As an important component of the automotive steering system, the lower housing of the steering wheel is usually made of plastic through injection molding. Its surface and interior have multiple holes for mounting the steering column, wiring harness interface, airbag components, etc. The positional and dimensional accuracy of these holes directly affects the overall assembly performance and safety of the steering wheel. Therefore, after the lower housing of the steering wheel is injection molded, its holes must be strictly inspected to improve the product qualification rate.
[0003] In the existing technology, the detection of holes in the lower shell of a car steering wheel mainly relies on workers holding a measuring ruler to measure the position coordinates of the holes, and then using vernier calipers to measure the inner diameter, depth and other dimensional parameters of each hole. This manual measurement method is subject to personal operation errors that affect the measurement results, and the detection accuracy and efficiency need to be improved.
[0004] Therefore, this application provides a detection device for the lower shell of an automobile steering wheel. Utility Model Content
[0005] To address the shortcomings of existing technologies, this application provides a detection device for the lower shell of an automobile steering wheel, which overcomes the deficiencies of existing technologies. The aim is to solve the problem that in the existing technology, the detection of holes in the lower shell of an automobile steering wheel mainly relies on the operator holding a measuring ruler to measure the position coordinates of the holes, and then using a vernier caliper to measure the inner diameter, depth and other dimensional parameters of each hole. This manual measurement method is subject to the influence of personal operation error on the measurement results, and the detection accuracy and efficiency need to be improved.
[0006] To achieve the above objectives, this application provides the following technical solution: a testing device for a lower cover of an automobile steering wheel, comprising a base, a testing frame fixedly mounted on the top of the base, a lower cover of the steering wheel placed on the top of the testing frame, positioning holes being provided at the four corners of the top of the testing frame and the lower cover of the steering wheel, and the testing frame communicating with the positioning holes of the lower cover of the steering wheel, a fixing nail being threadedly connected to two sets of corresponding holes, a side mounting component being fixedly mounted on the side of the lower cover of the steering wheel, and a top mounting component being fixedly mounted on the top of the lower cover of the steering wheel, and several sets of testing holes being provided inside the top mounting component and the side mounting component, with go / no-go gauges connected to each of the several sets of testing holes.
[0007] By adopting the above technical solution, the lower steering wheel shell is placed on top of the inspection frame. Four sets of fixing screws are used to initially position and fix the lower steering wheel shell and the four corners of the inspection frame through positioning holes. Several sets of go / no-go gauges are inserted into the corresponding inspection holes. The clearance between the inspection holes and the outer walls of the connected go / no-go gauges is used to determine whether the inspection holes are qualified. This application uses four sets of fixing screws to fix the lower steering wheel shell to the top of the inspection frame, eliminating the need for repeated adjustments to the workpiece position and ensuring the positional accuracy and stability of the lower steering wheel shell. The inspection results of the inspection holes can then be directly determined by observing the go / no-go gauges, eliminating the need for complex readings and improving inspection efficiency.
[0008] As a preferred technical solution of this application, the go / no-go gauge includes a cylindrical rod, the top end of the cylindrical rod is fixedly connected to a stop end, and the bottom end of the cylindrical rod is fixedly connected to a go end.
[0009] By adopting the above technical solution, when inspecting the test holes of the steering wheel lower shell, the go end is inserted into the hole to be inspected. If the go end can pass through the hole smoothly, the stop end is then tried to be inserted into the hole. If the stop end cannot be inserted, it means that the hole size is within the acceptable range; otherwise, it means that the hole size is unacceptable. By observing whether the stop end and the go end of the go / no-go gauge can pass through the test hole, the staff can quickly determine whether the hole size is acceptable, which greatly improves the inspection efficiency.
[0010] As a preferred technical solution of this application, the side mounting component and the testing frame are threadedly connected by a fixing pin two, and the testing frame has testing holes on both sides of the fixing pin two.
[0011] By adopting the above technical solution, the testing frame has testing holes on both sides of the fixing nail two, which can accurately correspond to the single-sided or double-sided holes set on the lower shell of different models of steering wheels. This improves the applicability during use.
[0012] As a preferred technical solution of this application, the outer periphery of the testing frame is provided with several sets of pressing mechanisms. Each pressing mechanism includes a bracket, which is fixedly installed on the outer wall of the testing frame. A hinge seat is fixedly installed at the top of the bracket, and an adjusting rod is hinged to one end of the hinge seat. A pressing head is installed at the bottom end of the adjusting rod, and the pressing head is in contact with the outer wall of the lower shell of the steering wheel.
[0013] By adopting the above technical solution, after placing the lower steering wheel shell on the testing frame, the pressing head is moved downward and closely fits the outer wall of the lower steering wheel shell by rotating the adjusting rod, thereby firmly fixing the lower steering wheel shell on the testing frame. This further reduces the possibility of the lower steering wheel shell shaking or shifting during the testing process, and further improves the accuracy and stability of the testing.
[0014] As a preferred technical solution of this application, the adjusting rod has an adjusting groove inside, and a screw is threadedly connected to the adjusting groove.
[0015] By adopting the above technical solution, when fixing the lower shell of the steering wheel of different shapes and sizes, it is only necessary to adjust the position of the pressing head, then slide the screw to the appropriate position and tighten it to fix the adjusting rod, which further improves the fixing effect of the lower shell of the steering wheel.
[0016] As a preferred technical solution of this application, the base is internally threaded with several sets of screws, the bottom end of the screws is fixedly installed with a support foot, and the top end of the screws is fixedly installed with a rotating cap.
[0017] By adopting the above technical solution, when the device is placed on an uneven testing surface, rotating the rotating cap drives the screw to move up and down inside the base, thereby adjusting the levelness of the upper surface of the base and ensuring the stability of the device during the testing process.
[0018] As a preferred technical solution of this application, an anti-slip layer is fixedly installed on the side of the pressing head near the lower shell of the steering wheel, and the anti-slip layer is made of rubber.
[0019] By adopting the above technical solution, the anti-slip layer made of rubber can not only increase the friction between the pressing head and the lower shell of the steering wheel, but also prevent the pressing head from causing wear to the lower shell of the steering wheel, thus improving the protection effect of the lower shell of the steering wheel.
[0020] As a preferred technical solution of this application, two sets of positioning steps are fixedly installed on the outer surface of the cylindrical rod, and the two sets of positioning steps are far apart.
[0021] By adopting the above technical solution, the depth of the go / no-go gauge inserted into the inspection hole can be observed more intuitively through the positioning step. When the positioning step is in contact with the upper surface of the go / no-go gauge on the lower cover of the steering wheel, the position accuracy of the inspection hole is determined to be qualified, which further improves the inspection efficiency and practicality.
[0022] The beneficial effects of this application are: 1. Place the lower steering wheel shell on top of the testing frame. Use four sets of fixing screws to pass through the positioning holes at the four corners of the lower steering wheel shell and the testing frame for initial positioning and fixation. After inserting several sets of go and no-go gauges into the corresponding testing holes, judge whether the testing holes are qualified based on the gap between the testing holes and the outer walls of the connected go and no-go gauges. This application uses four sets of fixing screws to fix the lower steering wheel shell on top of the testing frame, eliminating the need for operators to repeatedly adjust the workpiece position, ensuring the positional accuracy and stability of the lower steering wheel shell. Then, the testing results of the testing holes can be intuitively judged by observing the go and no-go gauges, eliminating the need for complex readings and improving testing efficiency.
[0023] 2. When inspecting the test holes on the lower cover of the steering wheel, insert the go end into the hole to be inspected. If the go end can pass through the hole smoothly, then try to insert the stop end into the hole. If the stop end cannot be inserted, it means that the hole size is within the acceptable range; otherwise, it means that the hole size is unacceptable. By observing whether the stop end and the go end of the go / no-go gauge can pass through the test hole, the staff can quickly determine whether the hole size is acceptable, which greatly improves the inspection efficiency. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the go / no-go gauge structure of this application; Figure 3 This is a schematic diagram of the pressing mechanism structure of this application; Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.
[0025] In the diagram: 1. Base; 2. Inspection frame; 3. Steering wheel lower shell; 4. Fixing pin one; 5. Top mounting component; 6. Go / no-go gauge; 601. Cylindrical rod; 602. No-go end; 603. Go end; 8. Side mounting component; 9. Fixing pin two; 10. Inspection hole; 11. Pressing mechanism; 1101. Bracket; 1102. Hinge seat; 1103. Adjusting rod; 1104. Pressing head; 12. Screw; 13. Support foot; 14. Rotating cap; 15. Positioning step; 16. Adjusting groove; 17. Screw; 18. Anti-slip layer. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] Reference Figure 1-4A testing device for a lower cover of an automobile steering wheel includes a base 1, a testing frame 2 fixedly mounted on the top of the base 1, a lower cover of the steering wheel 3 placed on the top of the testing frame 2, positioning holes being provided at the four corners of the top of the testing frame 2 and the lower cover of the steering wheel 3, and the positioning holes of the testing frame 2 and the lower cover of the steering wheel 3 being connected, and fixing pins 4 being threadedly connected to two sets of corresponding holes, a side mounting component 8 being fixedly mounted on the side of the lower cover of the steering wheel 3, and a top mounting component 5 being fixedly mounted on the top of the lower cover of the steering wheel 3, and a number of testing holes 10 being provided inside the top mounting component 5 and the side mounting component 8, and go / no-go gauges 6 being connected to the number of testing holes 10; a fixing pin 9 being threadedly connected between the side mounting component 8 and the testing frame 2, and testing holes 10 being provided on both sides of the fixing pin 9 inside the testing frame 2.
[0028] The steering wheel lower shell 3 is placed on top of the inspection frame 2. Four sets of fixing pins 4 are used to initially position and fix it through the positioning holes at the four corners of the steering wheel lower shell 3 and the inspection frame 2. Several sets of go / no-go gauges 6 are inserted into the corresponding inspection holes 10. The clearance between the inspection holes 10 and the outer walls of the connected go / no-go gauges 6 is used to determine whether the inspection holes 10 are qualified. This application uses four sets of fixing pins 4 to fix the steering wheel lower shell 3 to the top of the inspection frame 2, eliminating the need for repeated adjustments to the workpiece position and ensuring the positional accuracy and stability of the steering wheel lower shell 3. The inspection results of the inspection holes 10 can then be directly determined by observing the go / no-go gauges 6, eliminating the need for complex readings and improving inspection efficiency. Inspection holes 10 are provided on both sides of the fixing pins 9 inside the inspection frame 2, accurately corresponding to single-sided or double-sided holes for different models of steering wheel lower shell 3, thus improving applicability.
[0029] Reference Figure 1-3 The go / no-go gauge 6 includes a cylindrical rod 601. The top end of the cylindrical rod 601 is fixedly connected to a stop end 602, and the bottom end of the cylindrical rod 601 is fixedly connected to a go end 603. Several sets of pressing mechanisms 11 are provided on the outer periphery of the testing frame 2. The pressing mechanism 11 includes a bracket 1101. The bracket 1101 is fixedly installed on the outer wall of the testing frame 2. The top end of the bracket 1101 is fixedly installed with a hinge seat 1102. One end of the hinge seat 1102 is hinged to an adjusting rod 1103. The bottom end of the adjusting rod 1103 is installed with a pressing head 1104. The pressing head 1104 is in contact with the outer wall of the steering wheel lower shell 3. When inspecting the inspection hole 10 of the steering wheel lower shell 3, the through end 603 is inserted into the hole to be inspected. If the through end 603 can pass through the hole smoothly, the stop end 602 is then tried to be inserted into the hole. If the stop end 602 cannot be inserted, it means that the hole size is within the acceptable range; otherwise, it means that the hole size is unacceptable. By observing whether the stop end 602 and the through end 603 of the go / no-go gauge 6 can pass through the inspection hole 10, the staff can quickly determine whether the hole size is acceptable, which greatly improves the inspection efficiency. After placing the steering wheel lower shell 3 on the inspection frame 2, the pressing head 1104 is moved downward and closely fits the outer wall of the steering wheel lower shell 3 by rotating the adjusting rod 1103, thereby firmly fixing the steering wheel lower shell 3 on the inspection frame 2, further reducing the possibility of the steering wheel lower shell 3 shaking or shifting during the inspection process, and further improving the accuracy and stability of the inspection.
[0030] Reference Figure 1-3 The adjusting rod 1103 has an adjusting groove 16 inside, and a screw 17 is threaded into the adjusting groove 16. An anti-slip layer 18, made of rubber, is fixedly installed on the side of the pressing head 1104 near the lower steering wheel shell 3. When fixing the lower steering wheel shell 3 of different shapes and sizes, it is only necessary to adjust the position of the pressing head 1104, slide the screw 17 to the appropriate position, and tighten it to fix the adjusting rod 1103, which further improves the fixing effect of the lower steering wheel shell 3. The rubber anti-slip layer 18 can not only increase the friction between the pressing head 1104 and the lower steering wheel shell, but also prevent the pressing head 1104 from causing wear to the lower steering wheel shell, thus improving the protection effect of the lower steering wheel shell 3.
[0031] Reference Figure 1 , Figure 4 The base 1 has several sets of screws 12 internally threaded. The bottom end of the screw 12 is fixedly installed with a support foot 13, and the top end of the screw 12 is fixedly installed with a rotating cap 14. The outer surface of the cylindrical rod 601 is fixedly installed with two sets of positioning steps 15, which are far apart. When the device is placed on an uneven testing surface, rotating the rotating cap 14 drives the screws 12 to move up and down in the base 1, thereby adjusting the level of the upper surface of the base 1 and ensuring the stability of the device during the testing process. The positioning steps 15 allow for a more intuitive observation of the depth of the go / no-go gauge 6 inserted into the testing hole 10. When the positioning steps 15 are in contact with the upper surface of the go / no-go gauge 6 on the lower part of the steering wheel, the position accuracy of the testing hole 10 is deemed to be qualified, further improving the testing efficiency and practicality.
[0032] Working principle: The lower steering wheel shell 3 is placed on top of the inspection frame 2. Four sets of fixing screws 4 are passed through the positioning holes at the four corners of the lower steering wheel shell 3 and the inspection frame 2 for initial positioning and fixation. Several sets of go / no-go gauges 6 are inserted into the corresponding inspection holes 10. The clearance between the inspection holes 10 and the outer walls of the connected go / no-go gauges 6 is used to determine whether the inspection holes 10 are qualified. This application uses four sets of fixing screws 4 to fix the lower steering wheel shell 3 to the top of the inspection frame 2, eliminating the need for repeated adjustments to the workpiece position and ensuring the positional accuracy and stability of the lower steering wheel shell 3. Then, the clearance is determined by observing the go / no-go gauges. The test result of the test hole 10 can be intuitively judged by gauge 6 without complicated readings, which improves the testing efficiency. When testing the test hole 10 of the steering wheel lower shell 3, the through end 603 is inserted into the hole to be tested. If the through end 603 can pass through the hole smoothly, the stop end 602 is then tried to be inserted into the hole. If the stop end 602 cannot be inserted, it means that the hole size is within the qualified range; otherwise, it means that the hole size is unqualified. The staff can quickly judge whether the hole size is qualified by observing whether the stop end 602 and the through end 603 of the go-no-go gauge 6 can pass through the test hole 10, which greatly improves the testing efficiency. The testing frame 2 has testing holes 10 on both sides of the fixing nail 9 inside, which can accurately correspond to the single or double holes of different models of steering wheel lower shell 3. This improves the applicability during use. After the steering wheel lower shell 3 is placed on the testing frame 2, the pressing head 1104 is moved downward and closely fits the outer wall of the steering wheel lower shell 3 by rotating the adjusting rod 1103, thereby firmly fixing the steering wheel lower shell 3 on the testing frame 2. This further reduces the possibility of the steering wheel lower shell 3 shaking or shifting during the testing process, and further improves the accuracy and stability of the testing. Meanwhile, when fixing the steering wheel lower shell 3 of different shapes and sizes, it is only necessary to adjust the position of the pressing head 1104, then slide the screw 17 to the appropriate position and tighten it to fix the adjusting rod 1103, which further improves the fixing effect of the steering wheel lower shell 3; when the device is placed on an uneven test surface, by rotating the rotating cap 14, the screw 12 is driven to move up and down in the base 1, thereby adjusting the level of the upper surface of the base 1 and ensuring the stability of the device during the test. In addition, the rubber anti-slip layer 18 not only increases the friction between the pressing head 1104 and the lower steering wheel shell, but also prevents the pressing head 1104 from causing wear to the lower steering wheel shell, thus improving the protection of the lower steering wheel shell 3. The positioning step 15 allows for a more intuitive observation of the depth of the go / no-go gauge 6 inserted into the inspection hole 10. When the positioning step 15 is in contact with the upper surface of the go / no-go gauge 6 on the lower steering wheel shell, the position accuracy of the inspection hole 10 is determined to be qualified, further improving the inspection efficiency and practicality.
[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application 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 this application should be included within the protection scope of this application.
Claims
1. A detection device for the lower shell of an automobile steering wheel, comprising a base (1), characterized in that, A testing frame (2) is fixedly installed on the top of the base (1). A steering wheel lower shell (3) is placed on the top of the testing frame (2). Positioning holes are opened at the four corners of the top of the testing frame (2) and the steering wheel lower shell (3). The testing frame (2) is connected to the positioning holes of the steering wheel lower shell (3). A fixing nail (4) is threadedly connected to the two sets of corresponding holes. A side mounting part (8) is fixedly installed on the side of the steering wheel lower shell (3). A top mounting part (5) is fixedly installed on the top of the steering wheel lower shell (3). Several sets of testing holes (10) are opened inside the top mounting part (5) and the side mounting part (8). A go / no-go gauge (6) is connected to several sets of testing holes (10).
2. The detection device for the lower shell of an automobile steering wheel according to claim 1, characterized in that, The go / no-go gauge (6) includes a cylindrical rod (601), with a stop end (602) fixedly connected to the top end of the cylindrical rod (601) and a go end (603) fixedly connected to the bottom end of the cylindrical rod (601).
3. The detection device for the lower shell of an automobile steering wheel according to claim 1, characterized in that, The side mounting component (8) is threadedly connected to the testing frame (2) by a fixing pin two (9), and the testing frame (2) has testing holes (10) on both sides of the fixing pin two (9).
4. The detection device for the lower shell of an automobile steering wheel according to claim 1, characterized in that, The outer periphery of the testing frame (2) is provided with several sets of pressing mechanisms (11). The pressing mechanism (11) includes a bracket (1101). The bracket (1101) is fixedly installed on the outer wall of the testing frame (2). A hinge seat (1102) is fixedly installed at the top of the bracket (1101). An adjusting rod (1103) is hinged to one end of the hinge seat (1102). A pressing head (1104) is installed at the bottom end of the adjusting rod (1103). The pressing head (1104) is in contact with the outer wall of the steering wheel lower shell (3).
5. The detection device for the lower shell of an automobile steering wheel according to claim 4, characterized in that, The adjusting rod (1103) has an adjusting groove (16) inside, and a screw (17) is threaded into the adjusting groove (16).
6. The detection device for the lower shell of an automobile steering wheel according to claim 1, characterized in that, The base (1) has several sets of screws (12) connected to its internal threads. The bottom end of the screw (12) is fixedly installed with a support foot (13), and the top end of the screw (12) is fixedly installed with a rotating cap (14).
7. The detection device for the lower shell of an automobile steering wheel according to claim 4, characterized in that, The pressing head (1104) is fixedly installed with an anti-slip layer (18) on the side near the lower shell (3) of the steering wheel. The anti-slip layer (18) is made of rubber.
8. The detection device for the lower shell of an automobile steering wheel according to claim 2, characterized in that, Two sets of positioning steps (15) are fixedly installed on the outer surface of the cylindrical rod (601), and the two sets of positioning steps (15) are far apart.