A device for measuring the total runout of a wheel nut hub

Abstract

This utility model discloses a device for measuring the total runout of a wheel nut hub, comprising a base plate; a linear guide rail, on the upper side of which a first mounting bracket and a second mounting bracket are arranged opposite each other, and a fixed seat is provided on one side of the linear guide rail; a first center is rotatably mounted on the upper end of the first mounting bracket, and a second center is positioned at a corresponding position on the second mounting bracket; the space between the first and second centers is used to install a workpiece fixing rod, and the wheel nut to be tested is screwed onto the outer side of the workpiece fixing rod; a lead screw is threaded through the first mounting bracket, the first end of the lead screw passes through the fixed seat, and the second end of the lead screw is sleeved with a driving wheel, and a driven wheel is engaged on one side of the driving wheel. This utility model can solve the technical problem that existing wheel nut measuring devices can only measure the runout of the inner circle of the same cross section and cannot measure the total runout.

Description

Technical Field

[0001] This utility model relates to the field of wheel nut detection technology, specifically a full runout measuring device for wheel nut hub. Background Technology

[0002] In the manufacturing process of wheel nuts, the concentricity of the wheel nut hub directly affects the safety and stability of vehicle operation, and measuring the total runout of the hub is a key step in controlling concentricity. Currently, the mainstream method on the market uses a runout meter as an auxiliary measuring device, which can only drive the wheel nut to rotate and cannot make it move laterally at the same time. It can only obtain circular runout data within a certain cross-section and cannot detect the comprehensive runout of the wheel nut hub in multiple directions in the axial and radial directions, that is, it cannot measure the total runout, which is difficult to meet the quality inspection requirements of high-precision wheel nut production. Therefore, a new total runout measuring device is designed. Utility Model Content

[0003] This invention provides a device for measuring the total runout of a wheel nut hub, which solves the technical problem that existing wheel nut measuring devices can only measure the runout of the inner circle of the same cross section and cannot measure the total runout.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a full runout measuring device for a wheel nut hub, comprising a base plate; a linear guide rail, wherein a first mounting bracket and a second mounting bracket are disposed opposite each other on the upper side of the linear guide rail, and a fixed seat is disposed on one side of the linear guide rail, the fixed seat being connected to the base plate; a first center is rotatably disposed on the upper end of the first mounting bracket, and a second center is disposed at the corresponding position of the second mounting bracket, the space between the first center and the second center is used for installing a workpiece fixing rod, and a wheel nut to be tested is screwed onto the outer side of the workpiece fixing rod; a lead screw is threaded through the first mounting bracket, the first... The end of the lead screw passes through the fixed seat and cooperates with it to drive the first mounting bracket to translate. The second end of the lead screw is sleeved with a driving wheel, and a driven wheel is engaged on one side of the driving wheel. The driven wheel is sleeved on the outer wall of the first center. The measuring device is set on the upper side of the base plate near the workpiece fixing rod. The measuring device can flexibly adjust the measuring angle of the runout dial indicator so that its measuring end is in full contact with the surface of the wheel nut hub. Through the combination of lead screw, linear guide rail and workpiece fixing rod, the workpiece can be laterally translated while rotating, so as to accurately measure the total runout value of the wheel nut hub and truly reflect the machining accuracy and installation fit quality of the wheel nut.

[0005] As a supplement to the technical solution described in this utility model, a spring is sleeved on the outer wall of the second tip, the spring abuts against the ends of the second mounting bracket and the second tip, and a fixing block is provided at the end of the second tip away from the workpiece fixing rod. When the test is completed, the workpiece fixing rod is removed, and the second tip passes through the spring.

[0006] As a supplement to the technical solution described in this utility model, the measuring device includes an angle adjustment device disposed on one side of the workpiece fixing rod, a runout dial indicator is mounted on the angle adjustment device, and a mounting base connected to the base plate is mounted on one side of the angle adjustment device. The angle adjustment device can adjust the position of the runout dial indicator to achieve accurate measurement.

[0007] As a supplement to the technical solution described in this utility model, the first mounting bracket is provided with a first bearing connected to the lead screw, and a second bearing connected to the first tip is provided on the first mounting bracket above the first bearing. The first bearing and the second bearing ensure smooth transmission and rotation.

[0008] As a supplement to the technical solution described in this utility model, the fixed base is provided with a connecting sleeve that engages with the threaded transmission of the lead screw. The connecting sleeve engages with the threaded transmission of the lead screw to convert the rotational motion of the lead screw into the linear translational motion of the first mounting bracket.

[0009] As a supplement to the technical solution described in this utility model, a handwheel is installed at the end of the lead screw away from the drive wheel for easy manual operation.

[0010] As a supplement to the technical solution described in this utility model, the second mounting bracket is provided with a guide sleeve that cooperates with the second tip. The guide sleeve cooperates with the second tip to reduce the shaking of the second tip. During the test, the second tip rotates and moves laterally along the guide sleeve. With the help of springs and other components, the second tip always maintains a stable working state, thereby ensuring the stability and reliability of the entire measurement process.

[0011] As a supplement to the technical solution described in this utility model, a first slider and a second slider are slidably disposed on the linear guide rail and connected to the first mounting bracket or the second mounting bracket. The second mounting bracket can be adjusted left and right through the second slider. During the detection process, the first slider provides the first mounting bracket with a precise linear motion trajectory.

[0012] As a supplement to the technical solution described in this utility model, a locking nut is screwed onto the side of the second slider, and the second slider is fixed on the linear guide rail by the locking nut.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The angle adjustment device allows for flexible adjustment of the dial indicator's measuring angle, ensuring full contact between its measuring end and the wheel nut hub surface. Through a combination of a lead screw, linear guide, and workpiece fixing rod, the workpiece can be laterally translated while rotating, thus accurately measuring the total runout of the wheel nut hub and truly reflecting the machining accuracy and installation fit quality of the wheel nut. This solves the technical problem of existing wheel nut measuring devices that can only measure the runout of the inner circle of a single cross-section and cannot measure the total runout. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention in its working state;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of the measuring device of this utility model.

[0019] Figure label:

[0020] 1. Base plate, 2. Linear guide rail, 3. Fixed seat, 4. First slider, 5. Second slider, 6. First mounting bracket, 7. Second mounting bracket, 8. First center, 9. Second center, 10. Workpiece fixing rod, 11. Wheel nut, 12. Lead screw, 13. Driving wheel, 14. Driven wheel, 15. Measuring device, 16. Spring, 17. Handwheel, 18. Fixed block, 31. Connecting sleeve, 51. Locking nut, 61. First bearing, 62. Second bearing, 71. Guide sleeve, 81. Fixed sleeve, 91. Fixed part, 101. Mounting hole, 151. Angle adjustment device, 152. Dial indicator, 153. Mounting seat. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] The present invention relates to a device for measuring the total runout of a wheel nut hub, such as... Figure 1-4As shown, the system includes a base plate 1, which serves as a basic support structure, providing a stable foundation for precise measurement; a linear guide rail 2, on which a first mounting bracket 6 and a second mounting bracket 7 are respectively arranged opposite each other, providing sliding guidance for the first mounting bracket 6 and the second mounting bracket 7 to ensure their linearity and stability, making the positions of related components accurately controllable during measurement; a fixed seat 3 is provided on one side of the linear guide rail 2, which is connected to the base plate 1 and provides a mounting support point for the lead screw 12; a first center 8 is rotatably arranged on the upper end of the first mounting bracket 6, and a second center 9 is arranged at the corresponding position of the second mounting bracket 7; the space between the first center 8 and the second center 9 is used to install a workpiece fixing rod 10, and a wheel nut 11 to be tested is screwed on the outer side of the workpiece fixing rod 10; the first center 8 and the second center 9 clamp the workpiece fixing rod 10, ensuring that the wheel nut 11 maintains a stable central axis during measurement; the first center 8 can be rotated and translated through a lead screw transmission mechanism, driving the wheel nut 11 to move; a lead screw 12 is threaded through the first mounting bracket 6, and the lead screw 12... The first end of the screw 12 passes through the fixed base 3 and cooperates with it to drive the first mounting bracket 6 to translate. The second end of the screw 12 is sleeved with a driving wheel 13. A driven wheel 14 is engaged on one side of the driving wheel 13. The driven wheel 14 is sleeved on the outer side wall of the first center point 8. The screw 12 cooperates with the fixed base 3 and the first mounting bracket 6. The first mounting bracket 6 is translated laterally by rotation. The driving wheel 13 at the second end of the screw 12 is engaged with the driving wheel 13. While driving the first mounting bracket 6 to move, it can also drive the first center point 8 to rotate. The measuring device 15 is set in the fixed base 3. The upper side of the base plate 1 is located near the workpiece fixing rod 10. The operator operates the rotating screw 12, which allows the wheel nut 11 to move laterally and rotate. The measuring device 15 can flexibly adjust the measuring angle of the runout dial indicator so that its measuring end is in full contact with the wheel hub surface of the wheel nut 11. Through the combination of the screw 12, the linear guide 2, and the workpiece fixing rod 10, the workpiece fixing rod 10 can move laterally while rotating, thereby accurately measuring the total runout value of the wheel hub of the wheel nut 11 and truly reflecting the machining accuracy and installation fit quality of the wheel nut 11.

[0023] In this embodiment, as Figure 1 As shown, a spring 16 is sleeved on the outer wall of the second tip 9. The spring 16 abuts against the end of the second mounting bracket 7 and the second tip 9. A fixing block 18 is provided at the end of the second tip 9 away from the workpiece fixing rod 10. When the test is completed, the workpiece fixing rod 10 is removed and the second tip 9 passes through the spring 16.

[0024] In this embodiment, as Figure 4As shown, the measuring device 15 includes an angle adjustment device 151 disposed on one side of the workpiece fixing rod 10. A runout dial indicator 152 is mounted on the angle adjustment device 151. A mounting base 153 connected to the base plate 1 is mounted on one side of the angle adjustment device 151. The angle adjustment device 151 can adjust the position of the runout dial indicator 152 to achieve accurate measurement.

[0025] In this embodiment, as Figure 3 As shown, the first mounting bracket 6 is provided with a first bearing 61 connected to the lead screw 12, and the first mounting bracket 6 is provided with a second bearing 62 connected to the first tip 8 at the upper part of the first bearing 61. The first bearing 61 and the second bearing 62 ensure smooth transmission and rotation.

[0026] In this embodiment, as Figure 3 As shown, the fixed base 3 is provided with a connecting sleeve 31 that is threadedly engaged with the lead screw 12. The connecting sleeve 31 is threadedly engaged with the lead screw 12 to convert the rotational motion of the lead screw 12 into the linear translational motion of the first mounting bracket 6.

[0027] In this embodiment, as Figure 3 As shown, a handwheel 17 is installed at the end of the lead screw 12 away from the drive wheel 13 for easy manual operation.

[0028] In this embodiment, as Figure 3 As shown, the second mounting bracket 7 is provided with a guide sleeve 71 that cooperates with the second tip 9. The guide sleeve 71 cooperates with the second tip 9 to reduce the shaking of the second tip 9. During the test, the second tip 9 moves laterally along the guide sleeve 71. With the help of components such as the spring 16, the second tip 9 always maintains a stable working state, thereby ensuring the stability and reliability of the entire measurement process.

[0029] In this embodiment, as Figure 1 As shown, the linear guide rail 2 is slidably provided with a first slider 4 and a second slider 5 connected to the first mounting bracket 6 or the second mounting bracket 7. The second mounting bracket 7 can be adjusted left and right through the second slider 5. During the detection process, the first slider 4 provides the first mounting bracket 6 with a precise linear motion trajectory.

[0030] In this embodiment, as Figure 2 As shown, a locking nut 51 is screwed onto the side of the second slider 5, and the second slider 5 is fixed to the linear guide rail 2 by the locking nut 51.

[0031] In this embodiment, as Figure 2As shown, loosen the locking nut 51 of the second slider 5, adjust the position of the second mounting bracket 7, and after adjustment, tighten the locking nut 51 to fix the second mounting bracket 7. The first tip 8 and the second tip 9 each have a conical fixing part 91 on their opposite sides, with the axes of the two fixing parts 91 coinciding. The end of the first tip 8 is provided with a fixing sleeve 81 located outside the fixing part 91. Both ends of the workpiece fixing rod 10 have mounting holes 101. Screw the wheel nut 11 to be tested onto the workpiece fixing rod 10, and then insert the workpiece fixing rod 10 into the fixing sleeve 81. The workpiece fixing rod 10 and the fixing sleeve 81 are interference-fitted. The fixing part 91 between the first tip 8 and the second tip 9 is inserted into the mounting hole 101. The spring 16's elastic force fixes the workpiece fixing rod 10 between the first positioning center 8 and the second positioning center 9. The position of the runout dial indicator 152 is adjusted by the angle adjustment device 151 so that its measuring end contacts the surface of the wheel nut 11 to be tested. The operator turns the handwheel 17, and the screw 12 and the connecting sleeve 31 engage with the thread, driving the first mounting bracket 6 to translate along the linear guide rail 2. At the same time, the driving wheel 13 rotates, and the driving wheel 13 drives the driven wheel 14 so that the first center 8 can rotate synchronously, so that the wheel nut 11 rotates synchronously during the translation. The first center 8 drives the workpiece fixing rod 10 and the wheel nut 11 to move in a spiral trajectory. The runout dial indicator 152 detects and displays the total runout data of the wheel nut 11 hub in real time.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A full runout measuring device for a wheel nut hub portion, characterized by, include: Base plate (1); A linear guide (2) is provided with a first mounting bracket (6) and a second mounting bracket (7) on its upper side. A fixed seat (3) is provided on one side of the linear guide (2) and the fixed seat (3) is connected to the base plate (1). The upper end of the first mounting bracket (6) is rotatably provided with a first tip (8), and the second mounting bracket (7) is provided with a second tip (9) at the corresponding position. The space between the first tip (8) and the second tip (9) is used to install the workpiece fixing rod (10). The outer side of the workpiece fixing rod (10) is screwed with a wheel nut (11) to be tested. A lead screw (12) is threaded through the first mounting bracket (6). The first end of the lead screw (12) passes through the fixed seat (3) and cooperates with it to drive the first mounting bracket (6) to translate. The second end of the lead screw (12) is sleeved with a drive wheel (13). A driven wheel (14) is engaged on one side of the drive wheel (13). The driven wheel (14) is sleeved on the outer wall of the first tip (8). The measuring device (15) is located on the upper side of the base plate (1) near the workpiece fixing rod (10).

2. A full runout measuring device for a wheel nut hub portion according to claim 1, characterized in that: A spring (16) is sleeved on the outer wall of the second tip (9). The spring (16) abuts against the ends of the second mounting bracket (7) and the second tip (9). A fixing block (18) is provided at the end of the second tip (9) away from the workpiece fixing rod (10).

3. A device for full run-out measurement of a wheel nut hub portion according to claim 1, characterized in that: The measuring device (15) includes an angle adjustment device (151) disposed on one side of the workpiece fixing rod (10), a runout dial indicator (152) is mounted on the angle adjustment device (151), and a mounting base (153) connected to the base plate (1) is mounted on one side of the angle adjustment device (151).

4. The apparatus for full runout measurement of a wheel nut hub portion according to claim 1, characterized by: The first mounting bracket (6) is provided with a first bearing (61) connected to the lead screw (12), and the first mounting bracket (6) is provided with a second bearing (62) connected to the first tip (8) at the upper part of the first bearing (61).

5. The apparatus for full runout measurement of a wheel nut hub portion according to claim 1, characterized by: The fixed base (3) is provided with a connecting sleeve (31) that is threadedly engaged with the lead screw (12).

6. The apparatus for full runout measurement of a wheel nut hub portion according to claim 1, characterized by: A handwheel (17) is installed at the end of the lead screw (12) away from the drive wheel (13).

7. The apparatus for full runout measurement of a wheel nut hub portion according to claim 1, characterized by: The second mounting bracket (7) is provided with a guide sleeve (71) that cooperates with the second tip (9).

8. The apparatus for full runout measurement of a wheel nut hub portion according to claim 1, characterized by: The linear guide rail (2) is slidably provided with a first slider (4) and a second slider (5) connected to the first mounting bracket (6) or the second mounting bracket (7).

9. The device for measuring the total runout of a wheel nut hub according to claim 8, characterized in that: The second slider (5) is screwed with a locking nut (51) on its side.

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