A step height measuring device for a bushing part
By designing a placement plate, clamping plate, and gear transmission structure, the shortcomings of traditional bushing part step height measuring devices in terms of fixation and angle adjustment are solved, realizing stable clamping and accurate measurement of bushing parts, adapting to complex structures, and improving the accuracy and efficiency of measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN RAILWAY PROFESSIONAL TECH COLLEGE
- Filing Date
- 2025-10-14
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional bushing step height measuring devices have poor adaptability in terms of part fixing, making it difficult to stably fix bushings of different diameters. They also lack effective anti-slip design, making the parts prone to displacement due to vibration or movement. The clamping force is poorly controlled; too tight a clamping force can cause part deformation, while too loose a clamping force can lead to unstable fixing. In terms of angle adjustment, the orientation of the bushing step surface cannot be flexibly adjusted, making it difficult to adapt to complex structures such as inclined steps. The angle adjustment accuracy is low and the repeatability is poor, affecting the accuracy of the measurement.
A step height measuring device for bushing parts was designed. Through a placement plate, clamping plate, and gear transmission structure, the orientation of the bushing step surface can be adjusted 360 degrees by rotation. The arc design on the inner side of the clamping plate and the rubber anti-slip plate increase the friction and ensure the stability of the bushing. The bidirectional screw is threadedly connected to the clamping plate to adapt to bushings of different diameters. Gear one and gear two mesh to precisely control the rotation angle. Combined with the hydraulic rod to adjust the position of the measuring instrument, it can adapt to the measurement of bushings with complex structures.
It improves the versatility and stability of the measuring device, reduces measurement errors, enhances detection efficiency and consistency, adapts to bushings of different diameters and angles, ensures measurement accuracy and repeatability, simplifies operation procedures, and reduces labor intensity.
Smart Images
Figure CN224535066U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bushing parts technology, and more specifically, to a step height measuring device for bushing parts. Background Technology
[0002] As China becomes the world's largest industrial manufacturing country, the demand for mechanical parts in various industries has increased significantly. Due to the continuous innovation of automated machinery and equipment technology, the requirements for the forming precision of parts are becoming increasingly higher. Therefore, manufacturing and testing have become the two most important processes. A bushing is a cylindrical mechanical part that fits on a rotating shaft and is a component of a sliding bearing. The fit between the bushing and the shaft has precision requirements. Generally, it is necessary to measure and inspect the height of the step on the bushing to ensure compliance.
[0003] Traditional bushing step height measuring devices have many limitations. In terms of part fixing, the clamping structure has poor adaptability, making it difficult to stably fix bushings of different diameters. Furthermore, the lack of effective anti-slip design makes it easy for parts to shift due to vibration or movement, increasing measurement errors. The clamping force is poorly controlled; too tight a clamping force can cause part deformation, while too loose a clamping force can lead to unstable fixing. In terms of angle adjustment, the orientation of the bushing step surface cannot be flexibly adjusted, making it difficult to adapt to complex structures such as inclined steps. The angle adjustment accuracy is low, repeatability is poor, and the measurement accuracy is easily affected by angle deviation.
[0004] This invention can enhance the versatility, stability and automation level of the device, reduce measurement errors, and improve detection efficiency and consistency. Utility Model Content
[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a step height measuring device for bushing parts.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a step height measuring device for bushing parts, comprising: a base; A skateboard is mounted on the upper end of the base; The positioning plate is fixedly installed on one side of the upper end of the base; The control panel is fixedly mounted on the side of the base. The base has several anti-slip blocks fixedly installed at its bottom, a measuring instrument is provided on the inner side of the positioning plate, a placement plate is movably installed on the upper end of the sliding plate, and the control panel is electrically connected to each electrical appliance.
[0007] A further preferred embodiment: a slide rail is fixedly installed on the upper end of the base, and a slider is fixedly installed on the bottom of the slide plate, with the slider nested outside the slide rail.
[0008] A further preferred embodiment: a positioning block is fixedly installed on the bottom of the skateboard, an electric telescopic rod is fixedly installed on the outside of the positioning block, and one side of the electric telescopic rod is fixedly installed on one side of the positioning plate.
[0009] A further preferred embodiment: a groove is provided at the upper end of the placement plate, a bidirectional screw is embedded inside the groove, a motor is fixedly installed at one end of the bidirectional screw, and the motor is fixedly installed at the upper end of the slide plate.
[0010] A further preferred embodiment: a hydraulic rod one is fixedly installed on the upper end of the positioning plate, a limit plate is fixedly installed on the output end of the hydraulic rod one, a hydraulic rod two is fixedly installed on one side of the limit plate, and the measuring instrument is installed on the output end of the hydraulic rod two.
[0011] A further preferred embodiment: the bidirectional screw is nested with clamping plates on both sides, the bidirectional screw passes through both ends of the clamping plates, and the bidirectional screw and the clamping plates are connected by threads.
[0012] A further preferred embodiment: the upper end of the clamping plate is threaded with a clamping plate, the inner side of the clamping plate is arc-shaped, and an anti-slip plate is fixedly installed on the outer side of the clamping plate, the outer side of the anti-slip plate is arc-shaped, and the anti-slip plate is made of rubber.
[0013] A further preferred embodiment: A rotating rod is fixedly installed at the bottom of the placement plate, a gear one is fixedly installed at the bottom of the rotating rod, the gear one is located at the bottom of the slide plate, a gear two is provided at the bottom of the slide plate, the gear two meshes with the gear one, a motor two is fixedly installed at the bottom of the gear two, and the motor two is located at the upper end of the base. Beneficial effects
[0014] 1. By setting up a placement plate, the bottom of which is connected to gear one via a rotating rod and gear two driven by motor two, 360-degree rotation adjustment can be achieved. This allows for flexible adjustment of the orientation of the bushing step surface, accurately aligning it with the measuring instrument's detection direction. This solves the measurement problem caused by step angle deviation in traditional devices, and is especially suitable for bushings with complex structures such as inclined steps. The sliding groove at the upper end of the placement plate cooperates with the bidirectional screw and clamping plate to provide a stable installation foundation for the clamping plate, ensuring the structural rigidity of the clamping mechanism during operation. At the same time, the placement plate can move synchronously with the sliding plate, ensuring that the bushing can still accurately align with the measuring instrument after angle adjustment, improving the continuity of the overall measurement process. In addition, the bearing area of the placement plate is adapted to bushings of different lengths. Combined with the stable support of the bottom rotating rod, there is no obvious shaking during rotation, ensuring the stability of the parts during the adjustment and measurement stages, and further reducing the sources of error. 2. With the addition of clamping plates, the design fully balances stability and versatility. The inner arc design allows for a tight fit with the outer surface of the bushing, significantly increasing the contact area. Combined with the outer rubber anti-slip plate, the friction coefficient is significantly increased, effectively preventing the bushing from shifting due to vibration or movement during measurement, thus reducing measurement errors at the source. The clamping plates and the clamping plate are connected by threads, making it easy to replace clamping plates of different arc specifications according to the bushing diameter. This allows for flexible adaptation to parts of various sizes, expanding the applicability of the device. The bidirectional screw drives the clamping plates to move through the threaded transmission, providing uniform and controllable clamping force. This avoids deformation of parts due to excessive clamping or instability due to excessive loose clamping, making it particularly suitable for the testing needs of precision bushings. This structural design ensures reliable fixation while simplifying replacement operations, improving the practicality and economy of the device. 3. By incorporating a gear, which serves as a key component connecting the placement plate and the drive mechanism, the gear meshes with a second gear driven by a motor, achieving rotation of the placement plate through gear transmission. This transmission offers high precision and smooth operation, accurately controlling the rotation angle of the bushing and ensuring precise alignment between the step surface and the measuring instrument's detection direction. This effectively avoids measurement errors caused by angular deviations. The rigid connection characteristic of the gear transmission prevents slippage during rotation of the placement plate, ensuring good repeatability of angle adjustment and maintaining consistency across multiple batches of measurements. Furthermore, the gear, located at the bottom of the slide plate, forms a stable transmission chain with the rotating rod and placement plate, providing strong load-bearing capacity and adapting to bushing parts of varying weights. The gear exhibits no significant deformation or vibration during rotation, guaranteeing stability during the measurement process. This structural design not only expands the device's ability to detect bushings with complex angle steps but also improves the efficiency and reliability of angle adjustment, enhancing the device's automation level and detection accuracy. 4. In summary, this step height measuring device for bushing parts, through the inclusion of a placement plate and other structures, enhances the device's performance through the synergistic effect of the placement plate, clamping plate, and gear one: the placement plate is connected to gear one via a rotating rod, and together with gear two, achieves 360-degree rotation, adapting to complex steps; the clamping plate, with its arc-shaped design and rubber anti-slip pads, securely clamps the bushing, and the threaded connection facilitates replacement, adapting to multiple sizes; gear one and gear two mesh and drive, ensuring precise and stable rotation and guaranteeing angle adjustment accuracy. The combination of these three elements enhances the device's versatility, stability, and automation level, reduces measurement errors, and improves testing efficiency and consistency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the skateboard structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the bidirectional screw structure of this utility model.
[0018] Figure 4 This is a schematic diagram of the connection structure between gear one and gear two of this utility model.
[0019] Figure 1-4 In the middle: 1. Base; 101. Slide rail; 2. Slide plate; 201. Slider; 202. Positioning block; 203. Electric telescopic rod; 204. Gear II; 205. Motor II; 3. Positioning plate; 301. Hydraulic rod I; 302. Limiting plate; 303. Hydraulic rod II; 4. Control panel; 5. Placement plate; 501. Slide groove; 502. Bidirectional screw; 503. Motor I; 504. Clamping plate; 505. Clamping plate; 506. Anti-slip plate; 507. Rotating rod; 508. Gear I; 6. Measuring instrument. Detailed Implementation
[0020] The following will refer to the appendix in the embodiments of this utility model. Figures 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.
[0021] Please see Figure 1-4 In this embodiment of the present invention, a step height measuring device for a bushing part includes: a base 1; a slide plate 2 disposed on the upper end of the base 1; a positioning plate 3 fixedly installed on one side of the upper end of the base 1; a control panel 4 fixedly installed on the side of the base 1; a plurality of anti-slip blocks 201 fixedly installed on the bottom of the base 1; a measuring instrument 6 disposed on the inner side of the positioning plate 3; a placement plate 5 movably installed on the upper end of the slide plate 2; and the control panel 4 electrically connected to various electrical components; a slide rail 101 fixedly installed on the upper end of the base 1; a slider 201 fixedly installed on the bottom of the slide plate 2, the slider 201 nested on the outside of the slide rail 101; a positioning block 202 fixedly installed on the bottom of the slide plate 2; and an electric telescopic device fixedly installed on the outside of the positioning block 202. The rod 203 is fixedly installed on one side of the positioning plate 3; the upper end of the placement plate 5 has a sliding groove 501, and a bidirectional screw 502 is embedded in the sliding groove 501. A motor 503 is fixedly installed at one end of the bidirectional screw 502, and the motor 503 is fixedly installed on the upper end of the slide plate 2; a clamping plate 504 is nested on both sides of the bidirectional screw 502, and the bidirectional screw 502 passes through both ends of the clamping plate 504. The bidirectional screw 502 and the clamping plate 504 are connected by threads; a clamping plate 505 is threadedly connected to the upper end of the clamping plate 504. The inner side of the clamping plate 505 is arc-shaped, and an anti-slip plate 506 is fixedly installed on the outer side of the clamping plate 505. The outer side of the anti-slip plate 506 is arc-shaped and the anti-slip plate 506 is made of rubber. Place the bushing part to be measured horizontally on the placement plate 5, with the stepped surface of the part facing the measuring instrument 6 inside the positioning plate 3. Ensure that the step height direction is consistent with the detection direction of the measuring instrument 6, usually horizontal or vertical, depending on the type of measuring instrument 6. Start the motor 503, which drives the bidirectional screw 502 to rotate. The threads on both sides of the bidirectional screw 502 are in opposite directions. Since the bidirectional screw 502 is threadedly connected to the clamping plate 504, the clamping plates 504 on both sides will move relative to each other as the screw rotates, moving closer or further apart synchronously. This causes the clamping plate 505 at the upper end of the clamping plate 504 to move synchronously. The inner side of the clamping plate 505 is arc-shaped, which can fit against the outer surface of the bushing; its outer side has a rubber anti-slip plate 506. Also arc-shaped, it directly contacts the bushing. The elasticity and friction of the rubber increase the clamping force, preventing the part from slipping. Finally, the two side clamps 505 firmly fix the bushing radially, ensuring no displacement of the part during measurement. The electric telescopic rod 203 is activated via the control panel 4. As the electric telescopic rod 203 extends and retracts, it drives the slide plate 2 to slide along the slide rail 101 of the base 1. The bottom slider 201 of the slide plate 2 cooperates with the slide rail 101 to ensure stable movement. The fixed bushing moves synchronously with the slide plate 2 until it reaches the step height measurement point of the bushing. The upper and lower end faces of the step are precisely aligned with the detection end of the measuring instrument 6 inside the positioning plate 3, such as a probe or laser detection head. The measuring instrument 6 detects the step height by detecting the upper and lower end faces of the step. The distance between the end faces is measured, and the measurement data is transmitted to the control panel 4. After processing, the measurement results are displayed, completing one test. The inner arc design of the clamping plate 505 ensures a high degree of fit with the outer surface of the bushing. Combined with the rubber anti-slip plate 506, the friction coefficient is increased, which can firmly clamp bushings of different diameters, preventing parts from shaking or shifting during measurement and reducing errors from the source. The bidirectional screw 502 drives the clamping plate 504 through threaded transmission, resulting in smooth movement and controllable clamping force, suitable for fixing precision parts. The bidirectional screw 502 can adjust the distance between the two clamping plates 504 via the motor 503. With the adjustable clamping plate 505 and threaded connection, it is easy to replace different curvature specifications and can adapt to bushing parts of different diameters, expanding the range of applications. The slide plate 2 moves smoothly along a straight line through the cooperation of the slider 201 and the slide rail 101; the electric telescopic rod 203 has high driving precision and can accurately control the relative position of the part and the measuring instrument 6, ensuring that the measuring point is aligned with the detection end and improving the measurement accuracy. The motor 503, the electric telescopic rod 203 and the measuring instrument 6 are all centrally controlled through the control panel 4, reducing manual operation steps and reducing labor intensity; the automated clamping and moving process shortens the auxiliary time and improves the detection efficiency; the anti-slip block 201 at the bottom of the base 1 increases the friction with the worktable, preventing the device from displacing due to vibration or force during the measurement process and ensuring overall stability; the rigid cooperation between the slide rail 101 and the slider 201 further improves the structural stability.
[0022] In this embodiment of the utility model, a hydraulic rod 301 is fixedly installed on the upper end of the positioning plate 3, a limiting plate 302 is fixedly installed on the output end of the hydraulic rod 301, a hydraulic rod 303 is fixedly installed on one side of the limiting plate 302, and a measuring instrument 6 is installed on one side of the output end of the hydraulic rod 303; a rotating rod 507 is fixedly installed on the bottom of the placement plate 5, a gear 508 is fixedly installed on the bottom of the rotating rod 507, the gear 508 is located at the bottom of the slide plate 2, a gear 204 is provided at the bottom of the slide plate 2, the gear 204 meshes with the gear 508, a motor 205 is fixedly installed on the bottom of the gear 204, and the motor 205 is located at the upper end of the base 1; After clamping and fixing the bushing parts, if there is a deviation between the orientation of the bushing step surface and the initial direction of the measuring instrument 6, such as the step angle not being horizontal or vertical, the motor 205 can be started through the control panel 4. The motor 205 drives the gear 204 to rotate, and the gear 204 meshes with the gear 508, driving the rotating rod 507 and the top placement plate 5 to rotate. The placement plate 5 rotates synchronously with the rotating rod 507 until the step surface of the bushing is precisely aligned with the detection direction of the measuring instrument 6. For example, the inclined step surface can be adjusted to be horizontal to facilitate the detection of the measuring instrument 6. If the height direction of the bushing step is vertical, the upper and lower ends of the step... For vertical alignment, hydraulic rod 301 can be activated. The extension and retraction of hydraulic rod 301 moves the limiting plate 302, the bottom hydraulic rod 303, and the measuring instrument 6 vertically, adjusting the height of the measuring instrument 6 so that its detection end is aligned with the vertical height range of the step. If there is a horizontal deviation in the step height direction, such as the step position not being on the center line of the bushing, hydraulic rod 303 is activated. The extension and retraction of hydraulic rod 303 directly pushes the measuring instrument 6 horizontally, ensuring that the detection end accurately fits the measurement point of the step, such as the upper or lower end face of the step. The sliding plate 2 is still moved via the electric telescopic rod 203 to achieve alignment between the bushing and the measuring instrument 6. After initial alignment, the measuring instrument 6 transmits the data to the control panel 4 after inspection, completing the measurement. Motor 205 drives the placement plate 5 to rotate. Gear transmission ensures precise angle adjustment, adapting to bushings with different step angles, such as inclined step bushings. The combination of hydraulic rod 301 and hydraulic rod 303 allows the measuring instrument 6 to move flexibly in three-dimensional space, detecting steps at different positions on the bushing. It is suitable for bushing parts of various specifications and structures. The high angle adjustment precision of the gear transmission allows for precise adjustment of the bushing step surface to the optimal inspection angle of the measuring instrument 6, avoiding measurement errors caused by angle deviations. The telescopic stroke of the rod is controllable, allowing for fine adjustment of the position of the measuring instrument 6. This ensures that the detection end is perfectly aligned with the step measurement point, reducing errors caused by misalignment. No manual adjustment of the bushing angle or the position of the measuring instrument 6 is required. The alignment of complex steps can be achieved through the automated adjustment of the motor 205 and the hydraulic rod, reducing uncertainties associated with manual operation, lowering the skill requirements for operators, and improving detection efficiency. Both the gear transmission and the hydraulic rod drive are rigidly connected, resulting in no significant shaking during adjustment. The measuring instrument 6 is fixed to the output end of the hydraulic rod, ensuring stable positioning after adjustment and guaranteeing stability during measurement.
[0023] Working principle: Place the bushing to be measured horizontally on the placement plate 5, with the stepped surface facing the measuring instrument 6 inside the positioning plate 3. Start motor 503 via control panel 4, driving the bidirectional screw 502 to rotate, causing the two side clamping plates 504 and arc-shaped clamping plates 505 to move relative to each other. Rubber anti-slip pads 506 radially clamp the bushing to ensure no displacement during measurement. If the bushing angle needs to be adjusted, start motor 205, which, through gear 508 meshing with gear 204, causes the rotating rod 507 to rotate the placement plate 5 until the stepped surface aligns with the measuring instrument 6. The direction is determined, and then the electric telescopic rod 203 drives the slide plate 2 to move along the slide rail 101 to achieve initial alignment between the bushing and the measuring instrument 6. If fine adjustment is required, the hydraulic rod 1 301 can be activated to move the measuring instrument 6 up and down to adapt to the vertical step; the hydraulic rod 2 303 can be activated to push the measuring instrument 6 to move horizontally to adapt to the horizontally offset step. After the measuring instrument 6 detects the distance between the upper and lower end faces of the step, the data is transmitted to the control panel 4 for processing and display to complete one test. The whole process achieves coordinated operation of part fixing, angle adjustment, position alignment and precise measurement through automated control.
Claims
1. A device for measuring the step height of a bushing part, characterized in that, include: Base (1); A sliding plate (2) is disposed on the upper end of the base (1); Positioning plate (3) is fixedly installed on one side of the upper end of base (1); The control panel (4) is fixedly installed on the side of the base (1). The base (1) has several anti-slip blocks fixedly installed at its bottom. The positioning plate (3) has a measuring instrument (6) installed on its inner side. The slide plate (2) has a placement plate (5) movably installed on its upper end. The control panel (4) is electrically connected to each electrical appliance.
2. The step height measuring device for a bushing part according to claim 1, characterized in that: The upper end of the base (1) is fixedly installed with a slide rail (101), and the bottom of the slide plate (2) is fixedly installed with a slider (201), which is nested on the outside of the slide rail (101).
3. The step height measuring device for a bushing part according to claim 1, characterized in that: A positioning block (202) is fixedly installed at the bottom of the sliding plate (2), and an electric telescopic rod (203) is fixedly installed on the outside of the positioning block (202). One side of the electric telescopic rod (203) is fixedly installed on one side of the positioning plate (3).
4. The step height measuring device for a bushing part according to claim 1, characterized in that: The upper end of the placement plate (5) is provided with a sliding groove (501), and a bidirectional screw (502) is embedded inside the sliding groove (501). A motor (503) is fixedly installed at one end of the bidirectional screw (502), and the motor (503) is fixedly installed on the upper end of the slide plate (2).
5. The step height measuring device for a bushing part according to claim 1, characterized in that: The upper end of the positioning plate (3) is fixedly installed with a hydraulic rod one (301), the output end of the hydraulic rod one (301) is fixedly installed with a limit plate (302), the limit plate (302) is fixedly installed with a hydraulic rod two (303) on one side, and the measuring instrument (6) is installed on one side at the output end of the hydraulic rod two (303).
6. The step height measuring device for a bushing part according to claim 4, characterized in that: The bidirectional screw (502) is nested with a retaining plate (504) on both sides. The bidirectional screw (502) passes through both ends of the retaining plate (504), and the bidirectional screw (502) and the retaining plate (504) are connected by a thread.
7. The step height measuring device for a bushing part according to claim 6, characterized in that: The upper end of the clamping plate (504) is threaded with a clamping plate (505). The inner side of the clamping plate (505) is arc-shaped, and an anti-slip plate (506) is fixedly installed on the outer side of the clamping plate (505). The outer side of the anti-slip plate (506) is arc-shaped, and the anti-slip plate (506) is made of rubber.
8. The step height measuring device for a bushing part according to claim 1, characterized in that: A rotating rod (507) is fixedly installed at the bottom of the placement plate (5). A gear one (508) is fixedly installed at the bottom of the rotating rod (507). The gear one (508) is located at the bottom of the slide plate (2). A gear two (204) is provided at the bottom of the slide plate (2). The gear two (204) meshes with the gear one (508). A motor two (205) is fixedly installed at the bottom of the gear two (204). The motor two (205) is located at the upper end of the base (1).