A wheel rim roundness detection device

Abstract

This utility model relates to the field of wheel rim measurement technology and discloses a wheel rim roundness detection device, including a detection table. A roundness gauge detection device is provided on the front of the detection table. The detection table is provided with a control device for fixing and detecting the wheel rim and a driven device for controlling the rotation of the wheel rim. The control device includes: a moving block, a support plate, a drive motor, a lead screw, a lead screw slider, a support rod, and a disc. In this wheel rim roundness detection device, when the disc is restricted, the drive motor rotates and drives the lead screw to rotate. Since the lead screw slider is restricted by the support rod and the moving block, the lead screw slider can move to the side closer to the detection table. The lead screw slider can then push the moving block, along with the support plate, to move away from the center of the disc through the support rod, thereby controlling the moving block and the support plate to abut against the inside of the wheel rim being detected, thus fixing the wheel rim and preventing it from falling off during the detection process.

Description

Technical Field

[0001] This utility model relates to the field of wheel rim measurement technology, specifically a wheel rim roundness detection device. Background Technology

[0002] Roundness refers to the degree to which the cross-section of a workpiece approximates a theoretical circle. When the difference between the maximum and minimum radii is zero, the roundness is 0. The measuring tool is a roundness meter, used to measure the roundness of ring-shaped workpieces. A bicycle wheel rim is a rolling, ring-shaped, elastic rubber product used on bicycle wheels. It is usually mounted on a metal rim, supporting the bicycle frame, cushioning external impacts, ensuring contact with the road surface, and guaranteeing the vehicle's driving performance.

[0003] For example, the carbon fiber wheel rim roundness testing device disclosed in announcement number "CN218481029U" can achieve the roundness and height compliance testing of the wheel rim under test by setting a mounting hole groove on the testing table, and then installing a testing column and a roundness gauge on the outside of the mounting hole. By using simple components to form a convenient tooling, the testing purpose is achieved, and it is also convenient for workers to operate and inspect.

[0004] However, during operation, staff need to manually rotate the wheel rim for inspection, and there is no equipment to fix the wheel rim in place. This means that the wheel rim may fall off during manual rotation, affecting normal inspection and resulting in poor overall efficiency. To address this, we propose a wheel rim roundness inspection device. Utility Model Content

[0005] The purpose of this invention is to provide a wheel rim roundness detection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wheel rim roundness detection device, including a detection table, a roundness gauge detection device is provided on the front side of the detection table, and a control device for fixing and detecting the wheel rim and a driven device for controlling the rotation of the wheel rim are provided on the detection table.

[0007] The control device includes:

[0008] The movable block is used to fix the inside of the wheel rim in conjunction with the support plate;

[0009] The drive motor is used to drive the lead screw to rotate.

[0010] A lead screw and slider is used to control the movement of a moving block via a support rod.

[0011] A disc is used to support a moving block.

[0012] Preferably, the disc penetrates the detection table and is rotatably connected to it. A groove is formed on the front of the disc, and the movable block is slidably installed within this groove. The support plate is positioned on the side of the movable block away from the center of the disc. The drive motor is fixed to the back of the detection table, and its output shaft is fixed to a lead screw. The lead screw penetrates the disc and is rotatably connected to it. The lead screw is threadedly connected to a lead screw slider. A support rod is hinged to the outer surface of the lead screw slider, and the end of the support rod away from the lead screw slider is hinged to the movable block. When the disc is restricted, the drive motor rotates, causing the lead screw to rotate. Because the lead screw slider is restricted by the support rod and the movable block, it can move towards the side closer to the detection table. The lead screw slider can then push the movable block, along with the support plate, towards the side away from the center of the disc via the support rod. This controls the movable block and the support plate to contact the inner side of the wheel rim being tested, thus fixing the wheel rim and preventing it from falling off during the testing process.

[0013] Preferably, the driven device includes a vertical rod, one end of which is fixed to the side of the support plate near the moving block. The vertical rod passes through the moving block and is slidably connected to it. A connecting rod is hinged to the other end of the vertical rod. A return spring is fixed to the inner wall of the moving block. The end of the return spring away from the moving block is fixed to the vertical rod. A horizontal rod is hinged to the end of the connecting rod away from the vertical rod. The horizontal rod passes through the moving block and is slidably connected to it. The horizontal rod extends into the interior of the disc. The end of the horizontal rod away from the connecting rod abuts against a sliding disc. The sliding disc is slidably mounted on the inner wall of the disc. A connecting spring is fixed to the side of the sliding disc away from the horizontal rod. One end is fixed to the inner wall of the disc. A limit tooth is fixed on the inner wall of the detection platform. An abutment rod is fixed on the side of the sliding disc near the connecting spring. A driven tooth is provided on the disc. The driven tooth passes through the disc and is slidably connected to the disc. A tension spring is fixed on the inner wall of the disc. The end of the tension spring away from the disc is fixed to the driven tooth. A notch is provided on the abutment rod. The abutment rod can abut against the driven tooth, so that the driven tooth cannot move. The driven tooth engages with the limit tooth to restrict the disc, so that the disc cannot rotate. When the drive motor controls the lead screw to rotate, the moving block can move with the support plate to fix the wheel rim.

[0014] Compared with the prior art, this utility model provides a wheel rim roundness detection device, which has the following beneficial effects:

[0015] 1. This wheel rim roundness detection device, through the set control device and driven device, when the disc is restricted, the drive motor rotates and drives the lead screw to rotate. Since the lead screw slider is restricted by the support rod and the moving block, the lead screw slider can move to the side closer to the detection table. The lead screw slider can then push the moving block with the support plate to move away from the center of the disc through the support rod, thereby controlling the moving block and the support plate to abut against the inside of the wheel rim being detected, thus fixing the wheel rim and preventing it from falling off during the detection process.

[0016] 2. In this wheel rim roundness detection device, when the support plate abuts against the inside of the wheel rim, the moving block continues to move. When the support plate and the moving block are in contact, the crossbar can be controlled to push the sliding disk to move. The sliding disk moves along with the abutting rod. The notch of the abutting rod moves to the position of the driven tooth, so that it no longer abuts against the driven tooth. At this time, when the drive motor drives the lead screw to rotate, it can drive the disk to rotate together, thereby controlling the fixed wheel rim to rotate together, realizing the detection operation without the need for the operator to manually rotate the wheel rim. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal limiting tooth structure of the testing platform of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the control device and the driven device of this utility model;

[0021] Figure 5 This is a cross-sectional view of the connection between the control device and the driven device of this utility model;

[0022] Figure 6 This is a schematic diagram of the driven device and lead screw connection structure for removing the disc state in this utility model;

[0023] Figure 7 This is a cross-sectional view of the connection between the movable block and the vertical rod of this utility model.

[0024] In the diagram: 1. Inspection platform; 2. Roundness gauge inspection device; 3. Control device; 31. Moving block; 32. Support plate; 33. Drive motor; 34. Lead screw; 35. Lead screw slider; 36. Support rod; 37. Disc; 4. Driven device; 41. Vertical rod; 42. Connecting rod; 43. Return spring; 44. Horizontal rod; 45. Sliding disc; 46. Connecting spring; 47. Limiting tooth; 48. Abutment rod; 49. Driven tooth; 410. Tension spring. Detailed Implementation

[0025] like Figures 1-7 As shown, this utility model provides a technical solution: a wheel rim roundness detection device, including a detection table 1, a roundness gauge detection device 2 is provided on the front of the detection table 1, a control device 3 for fixing and detecting the wheel rim and a driven device 4 for controlling the rotation of the wheel rim are provided on the detection table 1, the control device 3 includes: a moving block 31, a support plate 32, a drive motor 33, a lead screw 34, a lead screw slider 35, a support rod 36, and a disc 37.

[0026] A disc 37 penetrates the detection table 1 and is rotatably connected to it. A groove is formed on the front of the disc 37, and a movable block 31 is slidably installed within this groove. A support plate 32 is positioned on the side of the movable block 31 away from the center of the disc 37. A drive motor 33 is fixed to the back of the detection table 1. The output shaft of the drive motor 33 is fixed to a lead screw 34, which penetrates the disc 37 and is rotatably connected to it. The lead screw 34 is threadedly connected to a lead screw slider 35. A support rod 36 is hinged to the outer surface of the lead screw slider 35, and the support rod 36 is located away from the lead screw slider. One end of block 35 is hinged to moving block 31. When disk 37 is restricted, drive motor 33 rotates and drives lead screw 34 to rotate. Since lead screw slider 35 is restricted by support rod 36 and moving block 31, lead screw slider 35 can move to the side closer to the detection table 1. Lead screw slider 35 can push moving block 31 with support plate 32 to the side away from the center of disk 37 through support rod 36, thereby controlling moving block 31 and support plate 32 to abut against the inside of the wheel rim being detected, thereby fixing the wheel rim and preventing the wheel rim from falling off during the detection process.

[0027] The driven device 4 includes a vertical rod 41, one end of which is fixed to the side of the support plate 32 near the moving block 31. The vertical rod 41 passes through the moving block 31 and is slidably connected to it. The other end of the vertical rod 41 is hinged to a connecting rod 42. A return spring 43 is fixed on the inner wall of the moving block 31. The end of the return spring 43 away from the moving block 31 is fixed to the vertical rod 41. A horizontal rod 44 is hinged to the end of the connecting rod 42 away from the vertical rod 41. The horizontal rod 44 passes through the moving block 31 and is slidably connected to it. The horizontal rod 44 extends into the interior of the disc 37. The end of the horizontal rod 44 away from the connecting rod 42 abuts against a sliding disc 45. The sliding disc 45 is slidably mounted on the inner wall of the disc 37. A connecting spring 46 is fixed to the side of the sliding disc 45 away from the horizontal rod 44. One end of the connecting spring 46 away from the sliding disk 45 is fixed to the inner wall of the disc 37. A limit tooth 47 is fixed to the inner wall of the detection platform 1. An abutment rod 48 is fixed to the side of the sliding disk 45 near the connecting spring 46. A driven tooth 49 is provided on the disc 37, penetrating the disc 37 and slidably connected to it. A tension spring 410 is fixed to the inner wall of the disc 37, with one end of the tension spring 410 away from the disc 37 fixed to the driven tooth 49. A notch is provided on the abutment rod 48, allowing it to abut against the driven tooth 49, preventing it from moving. The driven tooth 49 engages with the limit tooth 47, restricting the disc 37 from rotating. When the drive motor 33 controls… When the lead screw 34 rotates, it causes the movable block 31 to move along with the support plate 32 to fix the wheel rim. When the support plate 32 abuts against the inside of the wheel rim, the movable block 31 continues to move. When the support plate 32 and the movable block 31 are in contact, the support plate 32 moves along with the vertical rod 41. The vertical rod 41 pushes the horizontal rod 44 towards the side closer to the sliding disk 45 through the connecting rod 42, thereby pushing the sliding disk 45 to move together. The sliding disk 45 moves along with the abutting rod 48. The notch of the abutting rod 48 moves to the position of the driven retaining tooth 49, thus no longer abutting against the driven retaining tooth 49. At this time, when the drive motor 33 drives the lead screw 34 to rotate, the lead screw 34 applies a rotational force to the lead screw slider 35. The lead screw slider 35 rotates along the circle through the support rod 36 and the movable block 31. When a rotational force is applied to the disc 37, the disc 37 drives the driven locking tooth 49 to rotate. The inclined surface of the teeth of the driven locking tooth 49 abuts against the inclined surface of the teeth of the limiting locking tooth 47, causing the driven locking tooth 49 to retract into the disc 37 without affecting the rotation of the disc 37. At this point, the disc 37 can rotate together with the lead screw 34, thereby controlling the rotation of the fixed wheel rim. This allows for testing operations without requiring manual rotation of the wheel rim. After testing, when the wheel rim needs to be disassembled, simply start the drive motor 33 to control the lead screw 34 to rotate in the opposite direction. The lead screw 34 drives the lead screw slider 35 to rotate in the opposite direction. The lead screw slider 35, through the support rod 36 and the moving block 31, applies a force to the disc 37 in the opposite direction, causing the disc 37 to rotate together with the driven locking tooth 49.The vertical surfaces of the driven tooth 49 and the limiting tooth 47 abut against each other, preventing the disc 37 from rotating in the opposite direction. Therefore, when the lead screw 34 rotates in the opposite direction, the lead screw slider 35 can move and reset to a position away from the detection table 1, thereby controlling the moving block 31 and the support plate 32 to reset and releasing the wheel rim from fixation.

[0028] In this invention, during use, the wheel rim to be tested is placed on the moving block 31, and the drive motor 33 is started to rotate. At this time, the driven tooth 49 is abutted by the abutting rod 48. Through the mutual abutment and engagement of the driven tooth 49 and the limiting tooth 47, the disc 37 is limited. The lead screw slider 35 is restricted by the support rod 36 and the moving block 31, so the lead screw slider 35 can move to the side closer to the test table 1. The lead screw slider 35 can push the moving block 31 with the support plate 32 to the side away from the center of the disc 37 through the support rod 36, thereby controlling the moving block 31 and the support plate 32 to abut against the inside of the wheel rim to be tested, thereby fixing the wheel rim and preventing it from falling off during the test.

[0029] The roundness gauge detection device 2 is in contact with the wheel rim. When the support plate 32 abuts against the inside of the wheel rim, the moving block 31 continues to move. After the support plate 32 and the moving block 31 are in contact, the support plate 32 moves together with the vertical rod 41. The vertical rod 41 pushes the horizontal rod 44 to move closer to the sliding disk 45 through the connecting rod 42, thereby pushing the sliding disk 45 to move together. The sliding disk 45 moves together with the abutting rod 48. The notch of the abutting rod 48 moves to the position of the driven retaining tooth 49, so that it no longer abuts against the driven retaining tooth 49. At this time, when the drive motor 33 drives the lead screw 34 to rotate, the lead screw 34 applies a rotational force to the lead screw slider 35. The lead screw slider 35 applies a rotational force to the disc 37 through the support rod 36 and the moving block 31. The disc 37 drives the driven retaining tooth 49 to rotate. The inclined surface of the teeth of the driven retaining tooth 49 abuts against the inclined surface of the teeth of the limiting retaining tooth 47, so that the driven retaining tooth 49 retracts into the disc. Within 37, the rotation of the disc 37 is not affected, so the disc 37 can rotate together with the lead screw 34, thereby controlling the rotation of the fixed wheel rim. This allows for testing without manual rotation of the wheel rim by the operator. When the wheel rim needs to be disassembled after testing, simply start the drive motor 33 to control the lead screw 34 to rotate in the opposite direction. The lead screw 34 drives the lead screw slider 35 to rotate in the opposite direction. The lead screw slider 35 applies a force to the disc 37 in the opposite direction through the support rod 36 and the moving block 31. At this time, the disc 37 drives the driven retaining tooth 49 to rotate together. The vertical surface of the teeth of the driven retaining tooth 49 abuts against the vertical surface of the teeth of the limiting retaining tooth 47, preventing the disc 37 from rotating in the opposite direction. Therefore, when the lead screw 34 rotates in the opposite direction, the lead screw slider 35 can move away from the test table 1 to reset, thereby controlling the moving block 31 and the support plate 32 to reset and release the fixation of the wheel rim.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A wheel rim roundness testing device, comprising a testing platform (1), wherein a roundness gauge testing device (2) is provided on the front side of the testing platform (1), characterized in that: The testing platform (1) is provided with a control device (3) for fixing and testing the wheel rim and a driven device (4) for controlling the rotation of the wheel rim. The control device (3) includes: The movable block (31) is used to cooperate with the support plate (32) to fix the inner side of the wheel rim; Drive motor (33) is used to drive lead screw (34) to rotate; The lead screw and slider (35) are used to control the movement of the moving block (31) via the support rod (36); The disc (37) is used to support the moving block (31).

2. The wheel rim roundness detection device according to claim 1, characterized in that: The disc (37) passes through the detection table (1) and is rotatably connected to the detection table (1). A groove is provided on the front of the disc (37). The moving block (31) is slidably installed in the groove on the front of the disc (37). The support plate (32) is located on the side of the moving block (31) away from the center of the disc (37). The drive motor (33) is fixed to the back of the detection table (1).

3. The wheel rim roundness detection device according to claim 2, characterized in that: The output shaft of the drive motor (33) is fixed to the lead screw (34). The lead screw (34) passes through the disc (37) and is rotatably connected to the disc (37). The lead screw (34) is threadedly connected to the lead screw slider (35). A support rod (36) is hinged to the outer surface of the lead screw slider (35). The end of the support rod (36) away from the lead screw slider (35) is hinged to the moving block (31).

4. The wheel rim roundness detection device according to claim 1, characterized in that: The driven device (4) includes a vertical rod (41), one end of which is fixed to the side of the support plate (32) near the moving block (31). The vertical rod (41) passes through the moving block (31) and is slidably connected to the moving block (31). The other end of the vertical rod (41) is hinged to a connecting rod (42). A return spring (43) is fixed on the inner wall of the moving block (31). The end of the return spring (43) away from the moving block (31) is fixed to the vertical rod (41). The end of the connecting rod (42) away from the vertical rod (41) is hinged to a horizontal rod (44).

5. The wheel rim roundness detection device according to claim 4, characterized in that: The crossbar (44) passes through the moving block (31) and is slidably connected to the moving block (31). The crossbar (44) extends into the interior of the disc (37). The end of the crossbar (44) away from the connecting rod (42) abuts against the sliding disc (45). The sliding disc (45) is slidably mounted on the inner wall of the disc (37). A connecting spring (46) is fixed on the side of the sliding disc (45) away from the crossbar (44). The end of the connecting spring (46) away from the sliding disc (45) is fixed on the inner wall of the disc (37). Limiting teeth (47) are fixed on the inner wall of the detection table (1).

6. The wheel rim roundness detection device according to claim 5, characterized in that: The sliding disk (45) has a stop rod (48) fixed on the side near the connecting spring (46). The disk (37) is provided with a driven tooth (49). The driven tooth (49) passes through the disk (37) and is slidably connected to the disk (37). The inner wall of the disk (37) is fixed with a tension spring (410). The end of the tension spring (410) away from the disk (37) is fixed with the driven tooth (49). The stop rod (48) has a notch.

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