A testing fixture for a swing arm assembly of a vehicle suspension

Abstract

This utility model belongs to the field of automotive parts testing technology, specifically relating to a testing fixture for automotive suspension control arm assemblies. It includes: two positioning testing units spaced apart, each unit comprising a positioning pin with a reference positioning surface for verification; one unit is used to align and position the first end of the control arm; a hole position testing unit includes a bracket and a testing head, the testing head being slidably connected to the bracket for aligning with or moving away from the second end of the control arm; and a testing post positioned between the two positioning testing units, having a testing surface for contacting the outer surface of the control arm. This utility model addresses the problem of low factory testing efficiency for control arms. After the control arm surface is contacted with the reference positioning surface, the control arm is in a state awaiting inspection. The testing head in the hole position testing unit then performs positioning and testing on the position of the second end of the control arm to determine if it is within the appropriate dimensional range.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts testing technology, specifically relating to an inspection tool for automotive suspension control arm assemblies. Background Technology

[0002] The lower control arm is a key component of the car's suspension system. It mainly undertakes functions such as connecting the car body and wheels, supporting the weight of the car body, and buffering vibrations and impacts. Its condition directly affects the vehicle's handling, comfort, and safety.

[0003] After the swing arm is manufactured, it is usually inspected before leaving the factory to verify whether the dimensions of the swing arm are within the appropriate range and whether the local contour of the swing arm meets the requirements.

[0004] However, since the swing arm is usually an irregularly shaped structural component, its orientation and dimensions are difficult to detect quickly and accurately. Manual measurement is difficult to obtain accurate and stable data, and it also requires high skill from the operator. Measurement and inspection are extremely inconvenient and inefficient. Utility Model Content

[0005] To address the shortcomings of existing technologies, a testing tool for automotive suspension control arm assemblies is provided to solve the problem of low efficiency in factory testing of control arms.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A vehicle suspension control arm assembly inspection fixture, comprising:

[0007] Two positioning detection units are arranged at intervals. Each positioning detection unit includes a positioning pin and has a reference positioning surface for contact verification. One of the positioning detection units is used to match and position the first end of the swing arm.

[0008] At least one detection post is disposed between the two positioning detection units, and has a detection surface for conforming to the outer side of the swing arm.

[0009] A hole position detection unit includes a bracket and a detection head, wherein the detection head is slidably connected in the bracket and is used to match the second end of the swing arm for insertion or retraction.

[0010] Compared with existing technologies, the above technical solutions have the following beneficial effects:

[0011] The swing arm is positioned and restricted by the positioning pins in the two positioning detection units. When the surface of the swing arm is in contact with the reference positioning surface, the swing arm is in the state of waiting for inspection. Then, the position of the second end of the swing arm is located and detected by the detection head in the hole position detection unit to determine whether the end is within the appropriate size range. At the same time, the range of the swing arm's middle direction is detected by the detection surface on the detection column to avoid the swing arm's middle direction being unqualified, which would cause interference with other components after installation.

[0012] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0013] In one embodiment, the side wall of the detection head is provided with an observation port, which is connected to the interior of the detection head and is used to observe the second end of the swing arm inserted into the detection head.

[0014] In one embodiment, the hole position detection unit further includes a detection seat, on which a detection support arm is provided, and on which a detection notch is provided located outside the second end of the swing arm.

[0015] In one embodiment, the positioning detection unit includes a clamp, the actuating end of which is located on the side of the swing arm away from the positioning pin, so as to limit the swing arm to the positioning pin.

[0016] In one embodiment, a base plate is also included, and the positioning detection unit, hole detection unit and detection column are disposed on the base plate.

[0017] In one embodiment, a first card holder is further provided on the base plate, and a thickness gauge is placed on the first card holder. The thickness gauge is used to detect the thickness of the first end of the swing arm.

[0018] In one embodiment, a second mounting base is further provided on the base plate, and a first aperture go / no-go gauge is placed in the second mounting base. The first aperture go / no-go gauge is used to detect the aperture of the mounting hole at the first end of the swing arm.

[0019] In one embodiment, a second aperture go / no-go gauge is also included for detecting the aperture of the second end pin hole of the swing arm. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 for Figure 1 A schematic diagram of the structure with the swing arm removed.

[0023] Figure 3 This is a schematic diagram of the overall structure of the swing arm in this utility model.

[0024] Figure label:

[0025] 1. Base plate; 2. Positioning detection unit; 3. Hole position detection unit; 4. Detection column; 5. Detection surface; 6. First clamping seat; 7. Thickness go / no-go gauge; 8. Second clamping seat; 9. First hole diameter go / no-go gauge; 10. Second hole diameter go / no-go gauge; 11. Handle; 12. Positioning hole; 13. Column; 14. Swing arm; 15. Mounting hole; 16. Ball head pin;

[0026] 201. Locating pin; 202. Reference locating surface; 203. Clamping clamp;

[0027] 2011 First positioning pin; 2012, Second positioning pin;

[0028] 301. Bracket; 302. Detection head; 303. Observation port; 304. Detection seat; 305. Detection arm; 306. Detection notch. Detailed Implementation

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0030] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0031] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figure 1-3 As shown, the present invention provides a vehicle suspension control arm 14 assembly inspection tool, which includes two positioning detection units 2, a hole position detection unit 3, and a detection column 4.

[0035] Two positioning detection units 2 are arranged at intervals. Specifically, each positioning detection unit 2 includes a positioning pin 201, which has a reference positioning surface 202 for contact verification. One of the positioning detection units 2 is used to match and position the first end of the swing arm 14. The two positioning detection units 2 can position and limit the position of one end of the swing arm 14 and the position near the other end. At the same time, the accuracy of the positioning is judged by whether the swing arm 14 is in contact with the reference positioning surface 202. Specifically, the reference positioning surface 202 needs to be verified by contacting the workpiece.

[0036] The positioning pin 201 includes two pins: a first positioning pin 2011 and a second positioning pin 2012. The first positioning pin 2011 is located at the first end of the swing arm 14, and the second positioning pin 2012 is located at the second end of the swing arm 14. The first end of the swing arm 14 is a mounting hole 15. Therefore, the reference positioning surface 202 on the first positioning pin 2011 is a stepped surface that contacts the bottom surface of the mounting hole 15. The second positioning pin 2012 is close to the second end of the swing arm 14. The second positioning pin 2012 contacts the bottom of the swing arm 14 that is close to the second end but not the bottom of the second end. Therefore, the reference positioning surface 202 on the second positioning pin 2012 is the top surface of the second positioning pin 2012.

[0037] The detection column 4 is disposed between the two positioning detection units 2, and has a detection surface 5 for fitting the outer side of the swing arm 14. The detection surface 5 is the side of the detection column 4 closest to the swing arm 14. After the swing arm 14 is positioned by the two positioning detection units 2, the outer side of the middle part fits against the detection surface 5 of the detection column 4, which serves a positioning function on the one hand, and on the other hand, the detection surface 5 can be used to determine whether the middle direction of the swing arm 14 is within a suitable range.

[0038] The hole position detection unit 3 includes a bracket 301 and a detection head 302. The detection head 302 is slidably connected in the bracket 301. The detection head 302 is used to match the insertion or removal of the second end of the swing arm 14. Specifically, the end of the detection head 302 near the swing arm 14 has a detection blind hole. If the detection blind hole can be smoothly fitted onto the second end of the swing arm 14, it indicates that it is qualified; otherwise, it is unqualified.

[0039] In this embodiment, a base plate 1 is also included, and the positioning detection unit 2, the hole detection unit 3 and the detection column 4 are disposed on the base plate 1.

[0040] The base plate 1 is also provided with a pair of handles 11 to facilitate the handling of the entire inspection tool. The base plate 1 is provided with at least a pair of positioning holes 12, which are arranged obliquely at the corners of the base plate 1.

[0041] The locating pins 201 in the two positioning detection units 2 are used to position and restrict the swing arm 14. When the surface of the swing arm 14 is attached to the reference positioning surface 202, the swing arm 14 is in the state of waiting for inspection. Then, the position of the second end of the swing arm 14 is located and detected by the detection head 302 in the hole position detection unit 3 to determine whether the end is within the appropriate size range. At the same time, the range of the middle direction of the swing arm 14 is detected by the detection surface 5 on the detection column 4 to avoid the middle direction of the swing arm 14 being unqualified, which would cause interference with other components after installation.

[0042] Specifically, the side wall of the detection head 302 is provided with an observation port 303, which is connected to the interior of the detection head 302 and is connected to the detection blind hole inside the detection head 302. When the second end of the swing arm 14 is successfully inserted into the detection blind hole, the internal situation can be seen through the observation port 303. Therefore, by setting the observation port 303, the second end of the swing arm 14 inserted into the detection head 302 can be quickly observed, and then the detection can be judged as qualified.

[0043] In this embodiment, the hole position detection unit 3 further includes a detection seat 304, on which a detection support arm 305 is provided. The detection support arm 305 is located above the detection head 302. The detection support arm 305 is provided with a detection notch 306 located outside the second end of the swing arm 14. The detection notch 306 is used to detect the outer contour of the neck near the end of the second end of the swing arm 14. When the second end of the swing arm 14 is positioned by the two positioning detection units 2, and the second end passes smoothly through the detection notch 306, it indicates that the neck of the second end of the swing arm 14 does not interfere with the detection support arm 305, and is within the qualified range. Otherwise, if there is interference, it is unqualified.

[0044] In this embodiment, the positioning detection unit 2 includes a clamp 203, which is configured to correspond one-to-one with two positioning pins 201. The clamp 203 is used to restrict the swing arm 14 on the positioning pin 201. Specifically, the working end of the clamp 203 is located on the side of the swing arm 14 away from the positioning pin 201, so as to restrict the swing arm 14 on the positioning pin 201. The clamp 203 can be a push-pull quick clamp 203. As a standard part, the principle and usage of the push-pull quick clamp 203 will not be described here. The clamp 203 is installed on the column 13 near the positioning pin 201 to ensure that the clamp 203 can cooperate with the positioning pin 201 from above to press and fix the swing arm 14 on the positioning pin 201.

[0045] like Figure 2 , 3 As shown, in order to detect the thickness of the end of the swing arm 14, a first card seat 6 is also provided on the base plate 1. A thickness go / no-go gauge 7 is placed on the first card seat 6. The thickness go / no-go gauge 7 is used to detect the thickness of the first end of the swing arm 14. The detection part of the thickness go / no-go gauge 7 is concave. The depth of the concave insertion into the second end of the swing arm 14 is used to determine whether the thickness of the second end of the swing arm 14 is within a suitable range.

[0046] Furthermore, a second mounting base 8 is also provided on the base plate 1. A first aperture go / no-go gauge 9 is placed in the second mounting base 8. The center of the first mounting base 6 has a cylindrical notch for inserting the first aperture go / no-go gauge 9. The detection part of the first aperture go / no-go gauge 9 is cylindrical. The first aperture go / no-go gauge 9 is used to detect the aperture of the mounting hole 15 at the first end of the swing arm 14. By measuring the depth to which the first aperture go / no-go gauge 9 is inserted into the mounting hole 15 at the first end of the swing arm 14, it is determined whether the aperture of the mounting hole 15 at the first end of the swing arm 14 is qualified.

[0047] In one embodiment, a second aperture go / no-go gauge 10 is also included, which is used to detect the aperture of the pin hole at the second end of the rocker arm 14. A ball head pin 16 is installed at the second end of the rocker arm 14, and a pin hole is provided on the ball head pin 16. The second aperture go / no-go gauge 10 is used to determine whether the aperture of the pin hole is qualified. The working principle of the second aperture go / no-go gauge 10 is the same as that of the first aperture go / no-go gauge 9, and will not be described in detail here.

[0048] In actual use, before testing, the operator must visually inspect the gauge to ensure that the gauge is selected correctly and is in a usable condition;

[0049] Next, as shown in the figure, align the swing arm 14 part with the two positioning pins 201 respectively, so that the product surface is in close contact with the two reference positioning surfaces 202 on the positioning pins 201. Adjust the product position appropriately, push up the two clamps 203, and cooperate with the positioning pins 201 to clamp the product, ensuring that the product is fully positioned and in the state of waiting for inspection.

[0050] Then, push the detection head 302 upward and insert the detection blind hole in the detection head 302 into the ball head pin 16 at the first end of the product to detect the position of the hole in the product. If the detection head 302 can be inserted, it is qualified; otherwise, it is unqualified. Whether it is inserted in place can be determined by observing the observation port 303 on the detection head 302.

[0051] Use the thickness go / no-go gauge 7, the first diameter go / no-go gauge 9, and the second diameter go / no-go gauge 10 in sequence to determine whether the thickness of the first end of the product, the diameter of the first end mounting hole 15, and the diameter of the pin hole on the second ball head pin 16 are qualified. If the go gauge passes through but the no-go gauge does not, it is qualified; otherwise, it is unqualified.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automotive suspension swing arm assembly gauge, comprising: include: Two positioning detection units are arranged at intervals. Each positioning detection unit includes a positioning pin and has a reference positioning surface for contact verification. One of the positioning detection units is used to match and position the first end of the swing arm. At least one detection column is disposed between the two positioning detection units, and has a detection surface for conforming to the outer side of the swing arm; A hole position detection unit includes a bracket and a detection head, wherein the detection head is slidably connected in the bracket and is used to match the second end of the swing arm for insertion or retraction.

2. The automotive swing arm assembly testing fixture of claim 1, wherein, The side wall of the detection head has an observation port that connects to the inside of the detection head and is used to observe the second end of the swing arm inserted into the detection head.

3. The automotive swing arm assembly testing fixture of claim 2, wherein, The hole position detection unit also includes a detection seat, on which a detection arm is provided, and on which a detection notch is provided located outside the second end of the swing arm.

4. The automotive swing arm assembly testing fixture of claim 1, wherein, The positioning detection unit includes a clamp, the working end of which is located on the side of the swing arm away from the positioning pin, so as to limit the swing arm to the positioning pin.

5. The automotive suspension control arm assembly inspection fixture according to any one of claims 1-4, characterized in that, It also includes a base plate, on which the positioning detection unit, hole detection unit and detection column are disposed.

6. The automotive swing arm assembly testing fixture of claim 5, wherein, The base plate is also provided with a first card holder, on which a thickness gauge is placed. The thickness gauge is used to detect the thickness of the first end of the swing arm.

7. The automotive swing arm assembly testing fixture of claim 6, wherein, The base plate is also provided with a second card holder, in which a first aperture go / no-go gauge is placed. The first aperture go / no-go gauge is used to detect the aperture of the mounting hole at the first end of the swing arm.

8. The automotive swing arm assembly testing fixture of claim 7, wherein, It also includes a second-diameter go / no-go gauge, used to detect the diameter of the second end pin hole of the swing arm.

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