Motor suspension support testing fixture

Abstract

The utility model relates to the technical field of part detection equipment, in particular to a motor suspension bracket detection tool, which comprises a detection tool body and a detection pin, the detection pin is detachably mounted on the detection tool body, the upper surface of the detection tool body is provided with a positioning pin and a positioning hole, a bracket is a detected piece and is provided with at least two mounting holes, and the mounting holes are matched with the positioning pin and the positioning hole. The positions of the positioning pins and the positioning holes are set according to the positions of the mounting holes in the bracket, the detection pins comprise a position detection pin and an aperture detection pin, the position detection pin can be inserted into at least one mounting hole and one positioning hole, and the aperture detection pin can be inserted into at least one mounting hole. The device can detect the position, aperture and the like of the mounting hole of the electrode suspension bracket, is efficient and rapid in detection process, is low in cost, and is suitable for large-scale detection.

Description

A motor suspension bracket inspection tool Technical Field

[0001] This utility model relates to the field of parts testing equipment, and more specifically, to a motor suspension bracket inspection tool. Background Technology

[0002] The geometric dimensions and tolerances of automotive parts must meet the requirements of the design drawings, which is crucial for part assembly and vehicle performance. To meet these production needs, there are generally two solutions. One is to utilize higher-precision machining equipment to improve the machining accuracy, but this requires expensive equipment and increases processing costs. The other solution is to appropriately reduce machining precision, which can roughly meet the drawing tolerance requirements while reducing processing costs. However, this solution may produce non-conforming parts. To prevent defective parts from entering the subsequent assembly process, 100% monitoring of the dimensional tolerances of the parts is necessary to ensure they meet the design drawing requirements. The motor mount bracket assembly is used for the mounting connection to the motor housing and motor vibration isolation. It is fixed to the motor housing with three bolts. If there is a significant deviation in the relative position of the three holes, the motor housing cannot be installed. Therefore, 100% dimensional compliance must be ensured, requiring the design of a special inspection fixture to ensure 100% inspection before installation. Currently, two methods are generally used for inspection: coordinate measuring machine (CMM) or CCD imaging and comparison with standard images. Using coordinate measuring machines (CMMs) requires the purchase of specialized equipment, resulting in high costs, long inspection times, and low efficiency. Within a limited timeframe, only random sampling is possible, making 100% inspection impossible and unsuitable for mass production. Furthermore, CMMs necessitate specialized personnel to write inspection programs and design dedicated inspection fixtures, limiting the number of personnel required and increasing both inspection and management costs. While CCD image comparison technology is feasible, the investment is too high, requiring dedicated CCD image inspection production lines and data storage and comparison systems. Moreover, for castings, the inspection error is significant, leading to potential misjudgments. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a motor suspension bracket clamp, which can detect the position and diameter of the mounting holes of the electrode suspension bracket. The detection process is efficient, fast, and low-cost, and is suitable for large-scale detection.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a motor suspension bracket inspection tool, including a tool body and a detection pin, wherein the detection pin is detachably installed on the tool body, the upper surface of the tool body is provided with a positioning pin and a positioning hole, the bracket is the part to be inspected, the bracket is provided with a mounting hole, the position of the positioning pin and the positioning hole is set according to the position of the mounting hole on the bracket, the detection pin includes a position detection pin and a hole diameter detection pin, the position detection pin can be inserted into the mounting hole and the positioning hole, and the hole diameter detection pin can be inserted into the mounting hole.

[0005] In this technical solution, the bracket is the part to be tested. The bracket has mounting holes for connection to a motor. The position and diameter of the mounting holes determine whether the bracket can match the motor. The fixture includes a fixture body with testing pins mounted on it. These testing pins include a diameter testing pin and a position testing pin. The diameter of the diameter testing pin is the same as the diameter of the standard mounting hole. During testing, the diameter testing pin is inserted into the mounting hole to determine if the diameter meets the requirements. If the diameter testing pin can be smoothly inserted into the mounting hole without gaps between its outer surface and the hole wall, the diameter of the mounting hole meets the requirements. The bracket has multiple mounting holes, and the upper surface of the fixture body has positioning pins and positioning holes. The positioning pins can be inserted into the mounting holes on the bracket. When the positioning pin on the fixture body is inserted into one of the mounting holes on the bracket, the position of the bracket is fixed. At this point, if the distance between the other mounting hole and the mounting hole into which the positioning pin is inserted is required by the load, the mounting hole should be aligned with the positioning hole on the fixture body. The diameter of the positioning pin is set according to the diameter of the mounting hole. If the positioning pin can be smoothly inserted into the mounting hole and the positioning hole, and there is no gap between the outer wall of the positioning pin and the wall of the mounting hole, it indicates that the diameter and position of the mounting hole meet the requirements. Simultaneously checking the position and diameter of the mounting hole improves testing efficiency. The detection pin is detachably mounted on the fixture body, allowing it to be stored there, preventing accidental loss and facilitating easy access for staff. When testing the bracket, the staff first picks up the bracket and the diameter detection pin. The staff uses the diameter detection pin to check the diameter of the mounting hole into which the positioning pin will be inserted in the subsequent process, verifying that the diameter meets the requirements. If it does, the bracket is mounted on the fixture body, and the positioning pin on the fixture body is inserted into part of the mounting hole on the bracket to fix its position. Then, the staff inserts a position detection pin into the mounting hole that was not inserted by the positioning pin to check the size and position of the mounting hole. Finally, the staff processes the bracket according to the test results.

[0006] Preferably, the upper surface of the inspection fixture body is further provided with a quick clamp for clamping the bracket.

[0007] Preferably, the upper surface of the inspection fixture body is provided with a placement hole, which is a blind hole structure, and the placement hole is inserted into the inspection pin.

[0008] Preferably, a magnetic suction element is provided at the bottom of the placement hole, and the detection pin is made of magnetic material.

[0009] Preferably, the inspection fixture body is further provided with an abutment block, which abuts against the edge of the bracket.

[0010] Preferably, the abutment block has a second positioning hole in the horizontal direction, the second positioning hole penetrates the abutment block, the bracket also has a second mounting hole perpendicular to the axis of the mounting hole, the second positioning hole is aligned with the second mounting hole, and the detection pin also includes a second position detection pin, the second position detection pin is inserted into the second positioning hole and the second mounting hole.

[0011] Preferably, the second position detection pin includes a plug portion and a grip portion, the plug portion is located at one end of the grip portion, the plug portion and the grip portion are coaxial, the diameter of the grip portion is larger than the diameter of the plug portion, and the length of the plug portion matches the depth of the second mounting hole.

[0012] Preferably, a thickness measuring element for detecting the thickness of the mounting hole is detachably mounted on the gauge body.

[0013] Preferably, the thickness detection element is a rod-shaped structure, the cross-sectional area of ​​the thickness detection element is smaller than the cross-sectional area of ​​the mounting hole, and a detection groove is formed on the side wall of one end of the thickness detection element, the width of the detection groove being the same as the thickness of the mounting hole.

[0014] Preferably, the inspection tool body is also provided with a handle.

[0015] Compared with existing technologies, the advantages of this technical solution are: The presence of position detection pins and aperture detection pins, which cooperate with positioning pins and positioning holes, enables the detection of the aperture and position of the mounting holes on the bracket. The detection process is simple and quick, the results are intuitive, it requires less skill from operators, and is cost-effective, making it suitable for large-scale testing. The detection pins are detachable and can be installed on the fixture body, preventing accidental loss and facilitating easy access for operators. Attached Figure Description

[0016] Figure 1 is a perspective view of the motor suspension bracket inspection tool of this utility model;

[0017] Figure 2 is a perspective view of the motor suspension bracket gauge of this utility model when it has a bracket;

[0018] Figure 3 is an enlarged view of point A in Figure 2;

[0019] Figure 4 is a perspective view of the second position detection pin in the motor suspension bracket gauge of this utility model;

[0020] Figure 5 is a perspective view of the bracket in the motor suspension bracket inspection fixture of this utility model;

[0021] Figure 6 is a perspective view of the thickness detection component in the motor suspension bracket gauge of this utility model.

[0022] In the attached diagram: 1. Fixture body; 2. Detection pin; 3. Positioning pin; 4. Positioning hole; 5. Quick clamp; 6. Abutment block; 7. Thickness detection component; 8. Handle; 11. Placement hole; 12. Magnetic suction component; 21. Position detection pin; 22. Hole diameter detection pin; 23. Second position detection pin; 61. Second positioning hole; 71. Detection groove; 91. Mounting hole; 92. Second mounting hole; 231. Insertion part; 232. Grip part. Detailed Implementation

[0023] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0026] Example 1

[0027] As shown in Figures 1, 2, and 4, a motor suspension bracket inspection fixture includes a fixture body 1 and a detection pin 2. The detection pin 2 is detachably mounted on the fixture body 1. The upper surface of the fixture body 1 is provided with a positioning pin 3 and a positioning hole 4. The bracket 9 is the component to be inspected, and the bracket 9 is provided with at least two mounting holes 91. The positions of the positioning pin 3 and the positioning hole 4 are set according to the positions of the mounting holes 91 on the bracket 9. The detection pin 2 includes a position detection pin 21 and a diameter detection pin 22. The position detection pin 21 can be inserted into at least one mounting hole 91 and the positioning hole 4, and the diameter detection pin 22 can be inserted into at least one mounting hole 91. The bracket 9 is the component to be inspected, and the mounting holes 91 on the bracket 9 are provided for connection to the motor. Whether the position and diameter of the mounting holes 91 meet the requirements determines whether the bracket 9 can be matched with the motor. The fixture includes a fixture body 1, on which a detection pin 2 is mounted. The detection pin 2 includes a diameter detection pin 22 and a position detection pin 21. The diameter of the diameter detection pin 22 is the same as the diameter of the standard mounting hole 91. During testing, the diameter detection pin 22 can be inserted into the mounting hole 91 to determine whether the diameter of the mounting hole 91 meets the requirements. If the diameter detection pin 22 can be smoothly inserted into the mounting hole 91 and there is no gap between the outer wall of the diameter detection pin 22 and the hole wall of the mounting hole 91, it indicates that the diameter of the mounting hole 91 meets the requirements. Multiple mounting holes 91 are provided on the bracket 9. The upper surface of the fixture body 1 is provided with a positioning pin 3 and a positioning hole 4, where the positioning pin 3 can be inserted into the mounting hole 91 on the bracket 9. When the positioning pin 3 on the fixture body 1 is inserted into one of the mounting holes 91 on the bracket 9, the position of the mounting bracket 9 is fixed. At this time, if the distance between the other mounting hole 91 and the mounting hole 91 into which the positioning pin 3 is inserted is required by the load, the mounting hole 91 should be aligned with the positioning hole 4 on the fixture body 1. The diameter of the positioning pin 3 is set according to the diameter of the mounting hole 91. If the positioning pin 3 can be smoothly inserted into the mounting hole 91 and the positioning hole 4, and there is no gap between the outer wall of the positioning pin 3 and the hole wall of the mounting hole 91, it indicates that the diameter of the mounting hole 91 meets the requirements and the position also meets the requirements. At the same time, the position and diameter of the mounting hole 91 are checked, which improves the detection efficiency. The detection pin 2 is detachably installed on the fixture body 1, so that the detection pin 2 can be stored on the fixture body 1, avoiding accidental loss of the detection pin 2 and making it convenient for the staff to use. When checking the bracket 9, the staff first picks up the bracket 9 and the diameter detection pin 22. The staff uses the diameter detection to check the diameter of the mounting hole 91 into which the positioning pin 3 is inserted in the subsequent process, and checks whether the diameter of the mounting hole 91 meets the requirements. If the requirements are met, the bracket 9 is installed on the fixture body 1, and the positioning pin 3 on the fixture body 1 is inserted into the mounting hole 91 on the bracket 9 to fix the position of the bracket 9.Then, the staff inserts the position detection pin 21 into the mounting hole 91 that was not inserted by the positioning pin 3 to detect the size and position of the mounting hole 91. Finally, the staff processes the bracket 9 according to the detection results.

[0028] As shown in Figure 1, the upper surface of the fixture body 1 is also provided with a quick-clamp 5 for clamping the bracket 9. The positioning pin 3 can only fix the bracket 9 in the horizontal direction, but lacks fixation of the bracket 9 in the axial direction along the positioning pin 3. This may cause the bracket 9 to shake during testing, resulting in deviations in the horizontal position of each mounting hole 91, affecting the testing effect. Therefore, the quick-clamp 5 is required. After the bracket 9 is installed on the positioning pin 3, the operator uses the quick-clamp 5 to clamp the bracket 9, ensuring that the bracket 9 remains stable during the testing process and does not cause testing deviations.

[0029] As shown in Figure 3, the upper surface of the fixture body 1 is provided with placement holes 11. The placement holes 11 are blind holes and are inserted into the detection pins 2. The placement holes 11 are used to store the detection pins 2 by insertion, which is convenient for installation and removal of the detection pins 2. The number of placement holes 11 matches the number of detection pins 2. After storage, it is possible to check whether there are any empty placement holes 11 to determine if any detection pins 2 are missing.

[0030] As shown in Figure 3, a magnetic suction element 12 is also provided at the bottom of the placement hole 11, and the detection pin 2 is made of magnetic material. The magnetic suction element 12 can hold the detection pin 2 firmly in the placement hole 11, preventing the detection pin 2 from accidentally falling out of the placement hole 11, while not affecting the normal handling of the detection pin 2 by the staff.

[0031] Example 2

[0032] This embodiment is similar to Embodiment 1 above, except that, as shown in Figure 1, the fixture body 1 is also provided with an abutment block 6, which abuts against the edge of the bracket 9. The edge of the bracket 9 will abut against the suspension during use, thus requiring a certain degree of flatness at the edge of the bracket 9. If it is not flat, it will cause accelerated wear between the edge of the bracket 9 and the suspension limiting rubber block, leading to the limiting block falling off and causing the bracket 9 to make collision noises, affecting the overall NVH performance of the vehicle. Therefore, it is necessary to test the flatness of the edge of the bracket 9, hence the need for the abutment block 6. After the bracket 9 is installed on the positioning pin 3 and positioning hole 4, a qualified bracket 9 should have its edge tapped to fit snugly against the abutment block 6. If the abutment block 6 and the bracket 9 cannot fit together, or if there is a wide, irregular gap, it indicates that the edge of the bracket 9 does not meet the requirements.

[0033] As shown in Figures 1, 2, and 4, the abutment block 6 has a second positioning hole 61 in the horizontal direction, which penetrates the abutment block 6. The bracket 9 also has a second mounting hole 92 perpendicular to the axis of the mounting hole 91. The second positioning hole 61 and the second mounting hole are aligned. The detection pin 2 also includes a second position detection pin 23, which is inserted into the second positioning hole 61 and the second mounting hole 92. The side of the bracket 9 that abuts against the suspension also has a second mounting hole 92 for connection with the suspension. To ensure correct installation, the position of the second mounting hole 92 needs to be checked. The abutment block 6 has a second positioning hole 61. If the position of the second mounting hole 92 is correct, the second positioning hole 92 should be exactly aligned with the second positioning hole 61 after the bracket 9 is installed on the positioning pin 3 and the positioning hole 4. The operator inserts the second position detection pin 23 into the second positioning hole 61. If the second mounting hole 92 is qualified, the second position detection pin 23 can be smoothly inserted from the second positioning hole 61 into the second mounting hole 92. If there is a deviation in the diameter or position of the second mounting hole 92, the second position detection pin 23 cannot be inserted into the second mounting hole 92.

[0034] As shown in Figure 5, the second position detection pin 23 includes a insertion portion 231 and a gripping portion 232. The insertion portion 231 is located at one end of the gripping portion 232, and the insertion portion 231 and the gripping portion 232 are coaxial. The diameter of the gripping portion 232 is larger than the diameter of the insertion portion 231, and the length of the insertion portion 231 matches the depth of the second mounting hole 92. The gripping portion 232 is used by the operator to hold the second position detection pin 23. The larger diameter of the gripping portion 232 than the diameter of the insertion portion 231 causes the end face of the gripping portion 232 to form an abutment surface that abuts against the abutment block 6. The length of the insertion portion 231 matches the depth of the second mounting hole 92. When the insertion portion 231 can be fully inserted into the second positioning hole 61 and the second mounting hole 92, causing the gripping portion 232 to abut against the abutment block 6, it indicates that the depth of the second mounting hole 92 meets the requirements. If there is still a large gap between the holding part 232 and the abutting block 6 after the plug part 231 is fully inserted, it indicates that the depth of the second mounting hole 92 is too shallow.

[0035] Example 3

[0036] This embodiment is similar to Embodiment 1 above, except that, as shown in Figure 1, a thickness measuring element 7 for detecting the thickness of the mounting hole 91 is detachably installed on the fixture body 1. The thickness measuring element 7 can be used to detect the thickness of the mounting hole 91 of the bracket 9 to ensure that the thickness of the mounting hole 91 meets the requirements.

[0037] As shown in Figure 6, the thickness detection element 7 is a rod-shaped structure. The cross-sectional area of ​​the thickness detection element 7 is smaller than the cross-sectional area of ​​the mounting hole 91. A detection groove 71 is formed on the side wall of one end of the thickness detection element 7. The width of the detection groove 71 is the same as the thickness of the mounting hole 91. The fact that the cross-sectional area of ​​the thickness detection element 7 is smaller than the cross-sectional area of ​​the mounting hole 91 ensures that the thickness detection element 7 can be smoothly inserted into the mounting hole 91. If the wall of the mounting hole 91 can be smoothly inserted into the detection groove 71, it indicates that the thickness of the mounting hole 91 meets the requirements. If it cannot be inserted into the detection groove 71, it indicates that the thickness of the mounting hole 91 is too thick. If there is a large gap between the wall of the mounting hole 91 and the detection groove 71 after the wall of the mounting hole 91 is inserted, it indicates that the mounting hole 91 is too thin.

[0038] As shown in Figure 1, the inspection fixture body 1 is also equipped with a handle 8. Workers can conveniently pick up and hold the inspection fixture body 1 through the handle 8.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electrical machine suspension bracket testing fixture, characterized in that, The fixture includes a fixture body (1) and a detection pin (2). The detection pin (2) is detachably mounted on the fixture body (1). The upper surface of the fixture body (1) is provided with a positioning pin (3) and a positioning hole (4). The bracket (9) is the part to be tested. The bracket (9) is provided with at least two mounting holes (91). The positions of the positioning pin (3) and the positioning hole (4) are set according to the positions of the mounting holes (91) on the bracket (9). The detection pin (2) includes a position detection pin (21) and a diameter detection pin (22). The position detection pin (21) can be inserted into at least one mounting hole (91) and the positioning hole (4). The diameter detection pin (22) can be inserted into at least one mounting hole (91).

2. The motor suspension bracket testing fixture according to claim 1, wherein, The upper surface of the inspection fixture body (1) is also provided with a quick clamp (5) for clamping the bracket (9).

3. The motor suspension bracket inspection fixture according to claim 1, characterized in that, The upper surface of the inspection fixture body (1) is provided with a placement hole (11), which is a blind hole structure, and the placement hole (11) is inserted into the inspection pin (2).

4. The motor suspension bracket testing fixture of claim 3, wherein, The bottom of the placement hole (11) is also provided with a magnetic suction element (12), and the detection pin (2) is made of magnetic material.

5. The motor suspension bracket testing fixture of claim 1, wherein, The inspection fixture body (1) is also provided with an abutment block (6), which abuts against the edge of the bracket (9).

6. A motor suspension bracket testing fixture according to claim 5, wherein, The abutment block (6) has a second positioning hole (61) in the horizontal direction, and the second positioning hole (61) passes through the abutment block (6). The bracket (9) also has a second mounting hole (92) perpendicular to the axis of the mounting hole (91). The second positioning hole (61) is aligned with the second mounting hole. The detection pin (2) also includes a second position detection pin (23), which is inserted into the second positioning hole (61) and the second mounting hole (92).

7. The motor suspension bracket testing fixture of claim 6, wherein, The second position detection pin (23) includes a plug portion (231) and a grip portion (232). The plug portion (231) is located at one end of the grip portion (232). The plug portion (231) and the grip portion (232) are coaxial. The diameter of the grip portion (232) is larger than the diameter of the plug portion (231). The length of the plug portion (231) matches the depth of the second mounting hole (92).

8. The motor suspension bracket testing fixture of claim 1, wherein, A thickness detection element (7) for detecting the thickness of the mounting hole (91) is detachably installed on the inspection fixture body (1).

9. The motor suspension bracket testing fixture of claim 8, wherein, The thickness detection component (7) is a rod-shaped structure. The cross-sectional area of ​​the thickness detection component (7) is smaller than the cross-sectional area of ​​the mounting hole (91). A detection groove (71) is provided on the side wall of one end of the thickness detection component (7). The width of the detection groove (71) is the same as the thickness of the mounting hole (91).

10. A motor suspension bracket inspection fixture according to claim 1, characterized in that, The inspection tool body (1) is also provided with a handle (8).

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