Automatic bearing disc measuring device

Abstract

The application discloses a kind of bearing disc automatic measuring device, belong to bearing disc measurement technical field.It includes rack, workpiece positioning mechanism, workpiece rotating mechanism and workpiece measuring mechanism, workpiece positioning mechanism is used to position bearing disc;Workpiece positioning mechanism includes disc installation clamping mechanism and disc upper pressing mechanism, disc installation clamping mechanism includes jig fixed plate, support base, lower bearing seat and center rod, disc upper pressing mechanism includes upper pressing head and lifting mechanism, and upper pressing head includes upper bearing seat;Workpiece rotating mechanism is used to drive bearing disc rotation, and workpiece measuring mechanism includes the measuring sensor for measuring bearing disc.This application structure is simple and compact, workpiece positioning mechanism, workpiece rotating mechanism and workpiece measuring mechanism cooperate to realize the automatic measurement of bearing disc, bearing disc positioning is stable and accurate, improves the measurement quality and measurement efficiency of bearing disc, reduces the labor intensity of worker, can carry out full inspection to bearing disc, guarantees the quality of bearing disc.

Description

Technical Field

[0001] This invention relates to an automatic bearing disc measuring device, belonging to the field of bearing disc measurement technology. Background Technology

[0002] Brakes are components in a braking system used to generate braking force that impedes the movement or tendency of a vehicle. Based on the different rotating elements, they can be divided into two main categories: drum brakes and disc brakes. In a disc brake, the rotating element in the friction pair is a disc-shaped brake disc with its end face as the working surface. Friction elements clamp the brake disc from both sides to generate braking force. A bearing disc is one type of brake disc.

[0003] The quality of a car's braking system is related to the personal safety of drivers and pedestrians. The car bearing disc is a key component related to the car's safety performance. Therefore, after the car bearing disc is manufactured, it is necessary to measure the bearing disc, such as measuring the end face runout of the bearing disc.

[0004] Current technology for measuring bearing discs involves manually handling the discs and placing them on a support. The tooling is then manually moved to the measurement position, and a measuring instrument, such as a dial indicator or a sensor, is applied to the disc. The measurement process requires manual rotation of the disc, which typically weighs around 15 kg. This manual rotation and handling results in high labor intensity, low efficiency, and the risk of improper operation affecting the measurement results. Due to this low efficiency, only random sampling is currently possible, making it impossible to achieve 100% inspection and thus compromise the quality of the bearing discs.

[0005] To match the automated production of bearing discs and solve the aforementioned problems of existing manual measurement of bearing discs, an automatic bearing disc measurement device is needed. This device should be able to automate the measurement of bearing discs, improve measurement efficiency, ensure that all bearing discs are inspected, guarantee bearing disc quality, reduce the labor intensity of workers, and avoid the influence of human factors on the measurement results. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by providing an automatic bearing disc measuring device.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: an automatic bearing disc measuring device, including a frame, and further including a workpiece positioning mechanism, a workpiece rotating mechanism and a workpiece measuring mechanism disposed on the frame, wherein the workpiece positioning mechanism is used to position the bearing disc;

[0008] The workpiece positioning mechanism includes a disc clamping mechanism and a disc pressing mechanism. The disc clamping mechanism includes a fixture fixing plate and a clamping fixture set on the fixture fixing plate. The clamping fixture includes a support base, a lower bearing seat set on the support base, and a central rod. The central rod can pass through the central hole of the bearing disc. The lower bearing seat is used to position the lower bearing outer ring of the bearing disc.

[0009] The disc pressing mechanism includes an upper pressing head and a lifting mechanism for driving the upper pressing head to move up and down. The upper pressing head is provided with a mating hole that can be inserted and fitted with the center rod. The upper pressing head includes an upper bearing seat. Under the action of the lifting mechanism, the upper bearing seat can act on the outer ring of the upper bearing of the bearing disc.

[0010] The workpiece rotation mechanism is used to drive the bearing disk to rotate, and the workpiece measuring mechanism includes a measuring sensor for measuring the bearing disk.

[0011] The beneficial effects of this invention are as follows: The bearing disc is placed on the disc mounting mechanism, and the central rod can pass through the central hole of the bearing disc and be inserted into the mating hole of the upper pressure head, which moves downward under the action of the lifting mechanism. The central rod ensures the coaxiality of the upper and lower bearing seats. The lower bearing seat positions the lower bearing outer ring, and the upper bearing seat positions the upper bearing outer ring. The disc pressing mechanism can apply downward pressure under the action of the lifting mechanism, so that the lower bearing outer ring and the lower bearing seat fit better, and the upper bearing outer ring and the upper bearing seat fit better. With the cooperation of the disc mounting mechanism and the disc pressing mechanism, the workpiece positioning mechanism can stably position the bearing disc, laying a good foundation for the accuracy of the bearing disc measurement. The workpiece rotation mechanism can drive the bearing disc to rotate automatically, avoiding manual rotation operation and eliminating the influence of improper rotation operation on the measurement results. The measuring sensor can measure the bearing disc, improving the measurement efficiency of the bearing disc. The automatic bearing disc measuring device of the present invention has a simple and compact structure. The workpiece positioning mechanism, the workpiece rotation mechanism and the workpiece measuring mechanism work together to realize the automated measurement of the bearing disc. The bearing disc is positioned stably and accurately, which improves the measurement quality and efficiency of the bearing disc, reduces the labor intensity of workers, and enables full inspection of the bearing disc, thus ensuring the quality of the bearing disc.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the disc pressing mechanism also includes a pressing shaft and a tension spring disposed in the cavity of the pressing shaft, and the pressing head is connected to the tension spring.

[0014] The beneficial effect of adopting the above-mentioned further solution is that, to ensure accurate insertion and mating of the upper pressure head with the center rod when it moves downward, the upper pressure head is installed using a tension spring, and the upper pressure head has a certain amount of movement in the radial direction. When there is a slight axial deviation between the center rod and the mating hole, the upper pressure head can be automatically driven to align axially while the center rod is inserted, facilitating accurate mating and insertion of the center rod and the mating hole, thereby achieving stable positioning of the bearing disc and improving the positioning stability and reliability of the bearing disc during the measurement process.

[0015] Furthermore, the disc pressing mechanism also includes a connecting disc, through which the pressing head is connected to the tension spring.

[0016] The advantage of adopting the above-mentioned further solution is that the dimensions of bearing discs of different specifications will be different. When measuring bearing discs of different specifications, it is necessary to replace the corresponding upper pressure head. In order to facilitate the replacement of the upper pressure head, a connecting plate is added. In this way, the lower end of the tension spring can always be connected to the connecting plate. It is only necessary to install the replaced upper pressure head on the connecting plate.

[0017] Furthermore, the positioning part on the lower bearing housing for positioning the outer ring of the lower bearing is a lower truncated cone structure, and the lower truncated cone structure is provided with a plurality of lower bearing rollers; the positioning part on the upper bearing housing for positioning the outer ring of the upper bearing is an upper truncated cone structure, and the upper truncated cone structure is provided with a plurality of upper bearing rollers.

[0018] The beneficial effects of adopting the above-mentioned further solution are that the lower conical structure and its multiple lower bearing rollers can accurately position the lower bearing outer ring of the bearing disc, while the upper conical structure and its multiple upper bearing rollers can more precisely press and position the upper bearing outer ring of the bearing disc, ensuring accurate and stable positioning of the bearing disc during measurement. Simultaneously, the friction between the lower bearing rollers and the lower bearing outer ring of the bearing disc, as well as between the upper bearing rollers and the upper bearing outer ring of the bearing disc, is rolling friction, reducing friction between the lower bearing housing and the lower bearing outer ring of the bearing disc, and between the upper pressure head and the upper bearing outer ring of the bearing disc, thereby achieving the purpose of assisting in the rotation measurement of the bearing disc.

[0019] Furthermore, the frame is provided with a measuring position and a loading position. The measuring position is located below the upper pressure head. The tray loading mechanism is mounted on the frame through a shifting mechanism. Under the action of the shifting mechanism, the tray loading mechanism can reciprocate between the measuring position and the loading position.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the bearing disc can be loaded and unloaded at the loading position. After being loaded at the loading position, the bearing disc moves to the measuring position for measurement. After the measurement is completed, the workpiece returns to the loading position for unloading, and then waits for the next workpiece to be loaded. By using a disc clamping mechanism for movement, the workpiece measuring mechanism, the workpiece rotating mechanism, and the disc pressing mechanism can be kept stationary, thereby simplifying the structure of the automatic bearing disc measuring device.

[0021] Furthermore, the bearing disc includes an upper brake surface, a lower brake surface, and an outer end surface, and the measuring sensor includes a first sensor for measuring the upper brake surface, a second sensor for measuring the lower brake surface, and a third sensor for measuring the outer end surface.

[0022] The beneficial effect of adopting the above-mentioned further solution is that the probe of the first sensor can act on the upper brake surface of the bearing disc to measure its upper brake surface, the probe of the second sensor can act on the lower brake surface of the bearing disc to measure its lower brake surface, and the probe of the third sensor can act on the outer end surface of the bearing disc to measure its outer end surface. Through the first, second, and third sensors, comprehensive measurement data of the bearing disc can be obtained, facilitating a more comprehensive and accurate assessment of the bearing disc's quality.

[0023] Furthermore, the workpiece measuring mechanism also includes a support base, a horizontal plate and a vertical plate disposed on the support base, the vertical plate being slidably disposed on the horizontal plate, the vertical plate including a first vertical plate and a second vertical plate, the bracket of the first sensor being slidably disposed on the upper part of the first vertical plate, the bracket of the second sensor being slidably disposed on the lower part of the first vertical plate, and the bracket of the third sensor being slidably disposed on the second vertical plate.

[0024] The beneficial effects of adopting the above-mentioned further solution are that the bracket base is set on the frame, providing a stable support foundation for the entire workpiece measuring mechanism, ensuring the stability and reliability of the measuring sensor during the measurement process. The horizontal and vertical plates enable the measuring sensor to be adjusted in both horizontal and vertical directions. When facing different types of bearing discs, the measuring sensor can be adjusted according to the different measuring positions of different types of bearing discs, thus improving the versatility of the measuring device.

[0025] Furthermore, the workpiece measuring mechanism also includes a sensor adjustment mechanism for adjusting the probe position of the measuring sensor. The sensor adjustment mechanism includes a first lead screw, a second lead screw, and a third lead screw. The bracket of the first sensor is connected to the first lead screw through a first lead screw seat, the bracket of the second sensor is connected to the second lead screw through a second lead screw seat, and the bracket of the third sensor is connected to the third lead screw through a third lead screw seat.

[0026] The beneficial effect of adopting the above-mentioned further solution is that the positions of the supports for the first, second, and third sensors can be adjusted by using the first, second, and third lead screws respectively, thereby adjusting the position of the measuring sensor probe to meet the runout measurement requirements of the upper brake surface, lower brake surface, and outer end face of the bearing disc. Different models of bearing discs will have different positions for their upper brake surface, lower brake surface, and outer end face. The position of the measuring sensor probe can be adjusted by rotating the lead screws according to the bearing disc model, so that the measuring sensor probe can act on the measuring part of the bearing disc, thereby obtaining accurate measurement data of the bearing disc.

[0027] Furthermore, the workpiece rotation mechanism includes a roller bracket, a drive roller rotatably mounted on the roller bracket, a roller rotation mechanism for driving the roller to rotate, and a position moving mechanism for driving the roller to move. Under the action of the position moving mechanism and the roller rotation mechanism, the drive roller can act on the outer peripheral surface of the bearing disk to drive the bearing disk to rotate.

[0028] The beneficial effect of adopting the above-mentioned further solution is that, considering that the bearing disc needs to be positioned through its central hole during automatic measurement and that the upper brake surface, lower brake surface, and outer end surface of the bearing disc need to be measured by measuring sensors to measure its runout or thickness uniformity, in order to avoid interfering with the positioning and measurement of the bearing disc, a method is adopted in which a drive roller acts on the outer circle of the bearing disc to drive the bearing disc to rotate through friction. Specifically, the drive roller is mounted on a roller bracket. When the position moving mechanism is activated, it can drive the drive roller to move towards the workpiece, so that the roller surface of the drive roller can contact the outer circumferential surface of the bearing disc. When the roller rotation mechanism is activated, the drive roller contacts the bearing disc and drives the bearing disc to rotate through friction, thereby meeting the rotation requirements during bearing disc measurement.

[0029] Furthermore, the workpiece rotation mechanism also includes a base, and the roller bracket is mounted on the base via an elastic clamping mechanism. The elastic clamping mechanism includes a buffer spring, a spring guide rod, and a spring limiting plate. The spring limiting plate is mounted on the base and has a plate hole. The end of the spring guide rod passes through the plate hole and connects to the roller bracket. The buffer spring is fitted onto the spring guide rod between the spring limiting plate and the roller bracket.

[0030] The beneficial effect of adopting the above-mentioned further solution is that the elastic clamping mechanism can buffer the impact force generated when the drive roller contacts the workpiece, avoid damage to the bearing disk and drive roller, and also ensure that the drive roller maintains contact with the outer peripheral surface of the bearing disk during the measurement process, ensuring stable rotation drive of the bearing disk during the measurement process. Attached Figure Description

[0031] Figure 1 This is a front-view three-dimensional structural diagram of the automatic bearing disc measuring device of the present invention;

[0032] Figure 2 This is a schematic diagram of the workpiece positioning mechanism of the present invention;

[0033] Figure 3 This is a top view of the tray mounting mechanism of the present invention.

[0034] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure along the AA direction;

[0035] Figure 5 This is a schematic diagram of the structure of the lower bearing housing with lower bearing rollers according to the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the disc pressing mechanism of the present invention;

[0037] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure along the BB direction;

[0038] Figure 8 for Figure 6 A schematic diagram of the cross-sectional structure along the CC direction;

[0039] Figure 9 This is a schematic diagram of the workpiece rotation mechanism of the present invention;

[0040] Figure 10 This is a schematic diagram of the front view of the workpiece rotation mechanism of the present invention;

[0041] Figure 11 for Figure 10 A schematic diagram of the cross-sectional structure along the DD direction;

[0042] Figure 12 This is a three-dimensional structural schematic diagram of the workpiece rotation mechanism of the present invention;

[0043] Figure 13 This is a schematic diagram of the workpiece measuring mechanism of the present invention;

[0044] Figure 14 This is a schematic diagram of the front view structure of the workpiece measuring mechanism of the present invention;

[0045] Figure 15 for Figure 14 A schematic diagram of the cross-sectional structure along the EE direction;

[0046] Figure 16 for Figure 14 A schematic diagram of the cross-sectional structure along the FF direction;

[0047] Figure 17 This is a three-dimensional structural schematic diagram of the workpiece measuring mechanism of the present invention;

[0048] Figure 18 This is a rear-view three-dimensional structural diagram of the automatic bearing disc measuring device of the present invention;

[0049] Figure 19 This is a structural schematic diagram of the positioning bearing disk of the workpiece positioning mechanism of the present invention;

[0050] Figure 20 This is a schematic diagram of the structure of the measuring sensor of the present invention acting on the bearing disk;

[0051] Figure 21 This is a schematic diagram of the cross-sectional structure of the bearing disc;

[0052] In the diagram, 100 is the frame; 101 is the measuring position; 102 is the loading position; 200 is the workpiece positioning mechanism; 201 is the fixture fixing plate; 202 is the support base; 203 is the lower bearing seat; 204 is the center rod; 205 is the shifting motor; 206 is the shifting screw; 207 is the shifting nut; 208 is the shifting drive wheel; 209 is the shifting driven wheel; 210 is the fixture guide rail; 211 is the fixture slider; 212 is the upper bearing seat; 213 is the clamping shaft; 214 is the clamping shaft. 215. Connecting disc; 216. Tension spring; 217. Bearing sleeve; 218. Butt hole; 219. Lifting screw; 220. Lifting nut; 221. Lifting motor; 222. Mounting plate; 300. Workpiece rotation mechanism; 301. Drive roller; 302. Base; 303. Buffer spring; 304. Spring guide rod; 305. Spring limit plate; 306. Rotation motor; 307. Rotation drive wheel; 308. Rotation driven wheel; 309. Drive base plate; 3 10. Moving lead screw; 311. Moving nut; 312. Moving motor; 313. Moving drive wheel; 314. Moving driven wheel; 400. Workpiece measuring mechanism; 401. First sensor; 402. Second sensor; 403. Third sensor; 404. Support base; 405. Horizontal plate; 406. First vertical plate; 407. Second vertical plate; 408. Horizontal guide rail; 409. Horizontal slider; 410. First vertical guide rail; 411. The first… 412. First lower vertical slider; 413. Second vertical guide rail; 414. Second vertical slider; 415. First lead screw; 416. First lead screw seat; 417. Second lead screw; 418. Second lead screw seat; 419. Third lead screw; 420. Third lead screw seat; 500. Bearing disc; 501. Center hole; 502. Lower bearing outer ring; 503. Upper bearing outer ring; 504. Upper brake surface; 505. Lower brake surface; 506. Outer end face. Detailed Implementation

[0053] The principles and features of the present invention are described below with reference to examples. The examples are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0054] like Figures 1-21 As shown, an automatic bearing disc measuring device includes a frame 100, and also includes a workpiece positioning mechanism 200, a workpiece rotating mechanism 300 and a workpiece measuring mechanism 400 disposed on the frame 100. The workpiece positioning mechanism 200 is used to position the bearing disc 500.

[0055] The workpiece positioning mechanism 200 includes a disc clamping mechanism and a disc pressing mechanism. The disc clamping mechanism includes a fixture fixing plate 201 and a clamping fixture disposed on the fixture fixing plate 201. The clamping fixture includes a support base 202, a lower bearing seat 203 disposed on the support base 202, and a center rod 204. The center rod 204 can pass through the center hole 501 of the bearing disc 500. The lower bearing seat 203 is used to position the lower bearing outer ring 502 of the bearing disc 500.

[0056] The upper pressing mechanism includes an upper pressing head and a lifting mechanism for driving the upper pressing head to move up and down. The upper pressing head is provided with a docking hole 217 that can be inserted and cooperated with the center rod 204. The upper pressing head includes an upper bearing seat 212, which is mounted on the pressing head support. Under the action of the lifting mechanism, the upper bearing seat 212 can act on the upper bearing outer ring 503 of the bearing disc 500.

[0057] The workpiece rotation mechanism 300 is used to drive the bearing disk 500 to rotate, and the workpiece measuring mechanism 400 includes a measuring sensor for measuring the bearing disk 500.

[0058] The pressing mechanism also includes a pressing shaft 213 and a tension spring 215 disposed in the cavity of the pressing shaft 213. The upper pressing head is connected to the lower end of the tension spring 215. To ensure that the upper pressing head can accurately engage with the center rod 204 when it moves downward, the upper pressing head is installed using the tension spring 215. The upper pressing head has a certain amount of movement in the radial direction. When there is a slight axial deviation between the center rod 204 and the mating hole 217, the upper pressing head can be automatically aligned axially when the center rod 204 is inserted, facilitating accurate engagement and mating of the center rod 204 and the mating hole 217, thereby achieving stable positioning of the bearing disc 500 and improving the positioning stability and reliability of the bearing disc 500 during the measurement process. The pressing shaft 213 has a shaft end cap, and the upper end of the tension spring 215 is connected to the shaft end cap.

[0059] The pressing mechanism also includes a connecting plate 214, through which the pressing head is connected to the tension spring 215. Different specifications of bearing discs 500 will have different dimensions. When measuring different specifications of bearing discs 500, the corresponding pressing head needs to be replaced. To facilitate the replacement of the pressing head, the connecting plate 214 is added, ensuring that the lower end of the tension spring 215 remains connected to the connecting plate 214. Simply install the replaced pressing head onto the connecting plate 214. The pressing head can be threaded onto the connecting plate 214, facilitating the replacement of the corresponding pressing head for different models of bearing discs 500.

[0060] The positioning part on the lower bearing housing 203 for positioning the lower bearing outer ring 502 is a lower truncated cone structure, and the lower truncated cone structure is provided with multiple lower bearing rollers; the positioning part on the upper bearing housing 212 for positioning the upper bearing outer ring 503 is an upper truncated cone structure, and the upper truncated cone structure is provided with multiple upper bearing rollers. The lower truncated cone structure and the multiple lower bearing rollers on its surface can accurately position the lower bearing outer ring 502 of the bearing disc 500, and the upper truncated cone structure and the multiple upper bearing rollers on its surface can more accurately press and position the upper bearing outer ring 503 of the bearing disc 500, ensuring that the position of the bearing disc 500 is accurate and stable during the measurement process. Meanwhile, rolling friction occurs between the lower bearing roller and the lower bearing outer ring 502 of the bearing disc 500, and between the upper bearing roller and the upper bearing outer ring 503 of the bearing disc 500. This reduces the friction between the lower bearing housing 203 and the lower bearing outer ring 502 of the bearing disc 500, and between the upper pressure head and the upper bearing outer ring 503 of the bearing disc 500, thereby achieving the purpose of assisting in the rotation measurement of the bearing disc 500.

[0061] The end of the central rod 204 is a tapered guide structure, and the entrance of the docking hole 217 is also a tapered guide structure. When the central rod 204 docks with the docking hole 217, the tapered guide structure provides excellent guidance, enabling the docking of the central rod 204 and the docking hole 217 to be completed quickly, thus improving the positioning efficiency of the bearing disc 500.

[0062] The frame 100 is provided with a measuring position 101 and a loading position 102. The measuring position 101 is located below the upper pressure head. The tray loading mechanism is mounted on the frame 100 through a shifting mechanism. Under the action of the shifting mechanism, the tray loading mechanism can reciprocate between the measuring position 101 and the loading position 102. The bearing disc 500 is placed on the lower bearing seat 203. Then, under the action of the shifting mechanism, the fixture fixing plate 201 can automatically transport the bearing disc 500 to the measuring position 101. At the measuring position 101, under the coordinated action of the disc mounting mechanism and the disc pressing mechanism, the bearing disc 500 is positioned stably, ensuring the smooth rotation of the bearing disc 500. After the bearing disc 500 is measured, the shifting mechanism can also bring the bearing disc 500 back to the loading position 102, remove the measured bearing disc 500, and then wait for the mounting of the next bearing disc 500. By repeating the above actions, the loading, unloading and positioning of the bearing disc 500 can be automated, improving the efficiency and accuracy of the bearing disc 500 workpiece positioning. Under the action of the workpiece positioning mechanism 200, the bearing disc 500 is positioned stably and accurately. The loading and unloading of the bearing disc 500 can also be done by a robot to meet the needs of automatic loading and unloading of the bearing disc 500, further improving the measurement efficiency of the bearing disc 500.

[0063] The shifting mechanism includes a shifting motor 205, a shifting lead screw 206, and a shifting nut 207 that cooperates with the shifting lead screw 206. The shifting lead screw 206 is rotatably mounted on the frame 100, and the shifting nut 207 is connected to the fixture fixing plate 201. The shifting lead screw 206 rotates under the action of the shifting motor 205. The operation of the shifting motor 205 drives the shifting lead screw 206 to rotate. The shifting nut 207 is threadedly engaged with the shifting lead screw 206. As the shifting lead screw 206 rotates, the shifting nut 207 moves linearly along the axial direction of the shifting lead screw 206. Since the shifting nut 207 is connected to the fixture fixing plate 201, it drives the fixture fixing plate 201 to move between the loading position 102 and the measuring position 101, satisfying the measurement requirements of the bearing disc 500 at the measuring position 101. After the measurement is completed, it can smoothly return to the loading position 102 for loading and unloading.

[0064] A shift transmission mechanism is provided between the shift motor 205 and the shift screw 206. The shift transmission mechanism includes a shift driving wheel 208, a shift driven wheel 209, and a shift conveyor belt surrounding the shift driving wheel 208 and the shift driven wheel 209. The shift driving wheel 208 is mounted on the output shaft of the shift motor 205, and the shift driven wheel 209 is connected to the shift screw 206. The shift transmission mechanism can transmit the power of the shift motor 205 to the shift screw 206, causing the shift screw 206 to rotate, thereby realizing the movement of the disc mounting mechanism.

[0065] A fixture guide mechanism is provided between the fixture fixing plate 201 and the frame 100. The fixture guide mechanism includes a fixture guide rail 210 and a fixture slider 211 adapted to the fixture guide rail 210. The fixture guide rail 210 is disposed on the frame 100, and the fixture slider 211 is disposed at the bottom of the fixture fixing plate 201. During the movement of the fixture fixing plate 201, the fixture slider 211 slides along the fixture guide rail 210, and the fixture guide rail 210 can guide and limit the movement of the fixture fixing plate 201.

[0066] The upper pressing mechanism also includes a bearing sleeve 216, on which the pressing shaft 213 is rotatably mounted. The pressing shaft 213 can be supported within the bearing sleeve 216 by a bearing. The drive end of the lifting mechanism is connected to the bearing sleeve 216 via a mounting plate 221. The position of the upper pressing head needs to be adjusted, and the connection position between the mounting plate 221 and the drive end of the lifting mechanism is determined after adjustment. During the adjustment of the upper pressing head, the pressing shaft 213 needs to be able to rotate to ensure that the axial offset is not too large. Otherwise, even if the upper pressing head has a certain radial movement, it cannot compensate for the offset of the pressing shaft 213, which will affect the accurate positioning of the bearing disc 500. After the position of the upper pressing head is adjusted to be correct, the pressing shaft 213 can be locked, such as by fasteners, so that the pressing shaft 213 will not rotate relative to the bearing sleeve 216.

[0067] The lifting mechanism includes a lifting motor 220, a lifting screw 218, and a lifting nut 219 that cooperates with the lifting screw 218. The lifting screw 218 is rotatably mounted on the frame 100, and the lifting nut 219 is connected to the upper pressing mechanism. The lifting screw 218 rotates under the action of the lifting motor 220, and the lifting nut 219 can drive the upper pressing head to move up and down. The lifting motor 220 drives the lifting screw 218 to rotate, which in turn drives the lifting nut 219 that cooperates with the lifting screw 218 to move up and down, realizing the up and down movement of the upper pressing head. The position of the upper pressing head can be flexibly adjusted according to the measurement requirements of different bearing discs 500, ensuring stability and reliability during bearing disc 500 measurement.

[0068] The bearing disc 500 includes an upper brake surface 504, a lower brake surface 505, and an outer end surface 506. The measuring sensors include a first sensor 401 for measuring the upper brake surface 504, a second sensor 402 for measuring the lower brake surface 505, and a third sensor 403 for measuring the outer end surface 506. The probe of the first sensor 401 can act on the upper brake surface 504 of the bearing disc 500 and measure its movement, such as the runout of the upper brake surface 504. The probe of the second sensor 402 can act on the lower brake surface 505 of the bearing disc 500 and measure its movement, such as the runout of the lower brake surface 505. The probe of the third sensor 403 can act on the outer end surface 506 of the bearing disc 500 and measure its movement, such as the runout of the outer end surface 506. The first sensor 401, the second sensor 402 and the third sensor 403 can comprehensively acquire the measurement data of the bearing disk 500, so as to more comprehensively and accurately evaluate the quality of the bearing disk 500.

[0069] The measurement sensor can be a displacement sensor, such as an LVDT displacement sensor.

[0070] The workpiece measuring mechanism 400 further includes a support base 404, a horizontal plate 405 and a vertical plate disposed on the support base 404. The vertical plate is slidably disposed on the horizontal plate 405 via a horizontal guide rail 408 and a horizontal slider 409. The vertical plate includes a first vertical plate 406 and a second vertical plate 407. The first vertical plate 406 is provided with a first vertical guide rail 410. The support of the first sensor 401 is slidably disposed on the upper part of the first vertical guide rail 410 via a first upper vertical slider 411. The support of the second sensor 402 is slidably disposed on the lower part of the first vertical guide rail 410 via a first lower vertical slider 412. The second vertical plate 407 is provided with a second vertical guide rail 413. The support of the third sensor 403 is slidably disposed on the second vertical guide rail 413 via a second vertical slider 414. The support base 404 is mounted on the frame 100, providing a stable support foundation for the entire workpiece measuring mechanism 400, ensuring the stability and reliability of the measuring sensor during the measurement process. The horizontal plate 405 and the vertical plate allow the measuring sensor to be adjusted in both the horizontal and vertical directions. When dealing with different types of bearing discs 500, the measuring sensor can be adjusted according to the different measuring positions of the different types of bearing discs 500, thus improving the versatility of the measuring device.

[0071] The workpiece measuring mechanism 400 further includes a sensor adjustment mechanism for adjusting the probe position of the measuring sensor. The sensor adjustment mechanism includes a first lead screw 415, a second lead screw 417, and a third lead screw 419. A first lead screw seat 416 is threaded onto the first lead screw 415. The bracket of the first sensor 401 is connected to the first lead screw seat 416. A second lead screw seat 418 is threaded onto the second lead screw 417. The bracket of the second sensor 402 is connected to the second lead screw seat 418. A third lead screw seat 420 is threaded onto the third lead screw 419. The bracket of the third sensor 403 is connected to the third lead screw seat 420. The lead screw seat and the lead screw are threaded together. The positions of the supports for the first sensor 401, second sensor 402, and third sensor 403 are adjusted via the first lead screw 415, second lead screw 417, and third lead screw 419, respectively. This adjusts the position of the measuring sensor probe to meet the runout measurement requirements of the upper brake surface 504, lower brake surface 505, and outer end face 506 of the bearing disc 500. The positions of the upper brake surface 504, lower brake surface 505, and outer end face 506 may differ for different models of bearing discs 500. The position of the measuring sensor probe can be adjusted by rotating the lead screw according to the model of the bearing disc 500, ensuring that the measuring sensor probe can act on the measuring part of the bearing disc 500, thereby obtaining accurate measurement data of the bearing disc 500.

[0072] The first lead screw holder 416 has a through hole for the second lead screw 417 to pass through, and the second lead screw holder 418 has a through hole for the first lead screw 415 to move. The rotation of the lead screw can be driven manually or automatically. Manually, a hand crank can be used to drive the lead screw, while automatically, a lead screw motor can be used. After the brackets for the first sensor 401, the second sensor 402, and the third sensor 403 are adjusted into position, they can be locked using guide rail clamps to maintain the adjusted positions of the measuring sensors.

[0073] The workpiece rotation mechanism 300 includes a roller bracket, a drive roller 301 rotatably mounted on the roller bracket, a roller rotation mechanism for driving the roller 301 to rotate, and a position moving mechanism for driving the roller 301 to move. Under the action of the position moving mechanism and the roller rotation mechanism, the drive roller 301 can act on the outer peripheral surface of the bearing disk 500 to drive the bearing disk 500 to rotate. Considering that the bearing disk 500 needs to be positioned through its center hole 501 and needs to be measured by measuring sensors acting on the upper brake surface 504, lower brake surface 505 and outer end surface 506 of the bearing disk 500 to measure its runout or thickness uniformity, in order to avoid interfering with the positioning and measurement of the bearing disk 500, the drive roller 301 acts on the outer circle of the bearing disk 500, driving the bearing disk 500 to rotate through friction. More specifically, the drive roller 301 is rotatably mounted on the roller bracket. When the position moving mechanism is activated, it can drive the drive roller 301 to move towards the workpiece, so that the roller surface of the drive roller 301 can contact and act on the outer peripheral surface of the bearing disk 500. When the roller rotation mechanism is activated, the drive roller 301 contacts the bearing disk 500 and drives the bearing disk 500 to rotate through friction, thereby meeting the rotation requirements of the bearing disk 500 during measurement and providing strong support for the automatic measurement of the bearing disk 500.

[0074] The workpiece rotation mechanism 300 also includes a base 302. The roller bracket is mounted on the base 302 via an elastic clamping mechanism. The elastic clamping mechanism includes a buffer spring 303, a spring guide rod 304, and a spring limiting plate 305. The spring limiting plate 305 is mounted on the base 302 and has a hole. The end of the spring guide rod 304 passes through the hole and connects to the roller bracket. The buffer spring 303 is fitted onto the spring guide rod 304 between the spring limiting plate 305 and the roller bracket. The buffer spring 303 acts as a buffer when the driving roller 301 contacts the outer circumference of the workpiece bearing disk 500, absorbing some of the impact force and preventing damage to the driving roller 301 and the bearing disk 500. Furthermore, the elasticity of the buffer spring 303 ensures that the driving roller 301 remains in close contact with the outer circumference of the bearing disk 500 during operation, guaranteeing the driving force on the bearing disk 500.

[0075] The roller rotation mechanism includes a rotary motor 306 for driving the drive roller 301 to rotate. When the rotary motor 306 is activated, it can drive the drive roller 301 to rotate, and the drive roller 301 drives the bearing disk 500 to rotate through friction.

[0076] A rotational transmission mechanism is provided between the rotating motor 306 and the drive roller 301. The rotational transmission mechanism includes a rotating driving wheel 307, a rotating driven wheel 308, and a rotating conveyor belt surrounding the rotating driving wheel 307 and the rotating driven wheel 308. The rotating driving wheel 307 is disposed on the output shaft of the rotating motor 306, and the rotating driven wheel 308 is disposed on the axle of the drive roller 301. When the rotating motor 306 is activated, its output shaft drives the rotating drive wheel 307 to rotate. Since the rotating conveyor belt wraps around the rotating drive wheel 307 and the rotating driven wheel 308, the rotating driven wheel 308 rotates, thereby realizing the rotation of the drive roller 301. The rotating transmission mechanism can effectively realize the power transmission of the rotating motor 306, and can maintain a relatively stable transmission ratio during the transmission process, so that the drive roller 301 can rotate stably, ensuring the stability and controllability of the rotation speed of the bearing disk 500. In addition, the addition of the rotating transmission mechanism can also reduce the space occupied in the height direction of the workpiece rotating mechanism 300, making the structure of the workpiece rotating mechanism 300 more compact.

[0077] The base 302 is slidably mounted on the drive base plate 309. The position moving mechanism includes a movable lead screw 310, a movable nut 311 cooperating with the movable lead screw 310, and a movable motor 312 for driving the movable lead screw 310 to rotate. The movable lead screw 310 is rotatably mounted on the drive base plate 309, and the movable nut 311 is connected to the base 302. When the movable motor 312 is activated, it drives the movable lead screw 310 to rotate. Since the movable nut 311 is threadedly engaged with the movable lead screw 310, it drives the movable nut 311 to move linearly along the axial direction of the movable lead screw 310. The movable nut 311 is connected to the base 302, thereby driving the base 302 to move on the drive base plate 309, thus enabling the drive roller 301 to move towards or away from the bearing disc 500.

[0078] A moving transmission mechanism is provided between the moving motor 312 and the moving lead screw 310. This mechanism includes a moving drive wheel 313, a moving driven wheel 314, and a moving conveyor belt surrounding the moving drive wheel 313 and the moving driven wheel 314. The moving drive wheel 313 is mounted on the output shaft of the moving motor 312, and the moving driven wheel 314 is connected to the moving lead screw 310. When the moving motor 312 starts, its output shaft drives the moving drive wheel 313 to rotate. Since the moving conveyor belt surrounds the moving drive wheel 313 and the moving driven wheel 314, the moving driven wheel 314 rotates, and since the moving driven wheel 314 is mounted on the moving lead screw 310, it drives the moving lead screw 310 to rotate. This moving transmission mechanism achieves power transmission from the moving motor 312 to the moving lead screw 310, ensuring the smooth operation of the position moving mechanism and guaranteeing the reliability of the workpiece rotation mechanism 300.

[0079] A movable guide rail and a movable slider are provided between the roller bracket and the base 302. The movable guide rail can guide and limit the roller bracket, ensuring that the roller bracket moves along a predetermined trajectory and preventing the roller bracket from deviating or shaking during movement.

[0080] A seat movement guide rail and a seat movement slider are provided between the base 302 and the drive base plate 309. The seat movement guide rail can guide the movement of the base 302, ensuring that the base 302 can move along a predetermined trajectory, and avoiding the base 302 from deviating or shaking during the movement.

[0081] The drive roller 301 is made of polyurethane. Polyurethane has excellent wear resistance, enabling the drive roller 301 to maintain surface integrity and performance during prolonged use, reducing drive instability caused by wear, and thus ensuring continuous measurement of the bearing disc 500's rotation. When in contact with the bearing disc 500, the polyurethane drive roller 301 provides a relatively uniform and stable driving force, avoiding measurement errors caused by a drive surface that is too hard or too soft, which could affect the rotation of the bearing disc 500.

[0082] When the bearing disc 500 is being measured, the fixture fixing plate 201 is located at the upper part position 102, where a robot can be used for loading. The robot picks up the bearing disc 500 and places it on the lower bearing seat 203. The lower bearing seat 203 engages with the lower bearing outer ring 502 of the bearing disc 500. Under the action of the shifting motor 205, the fixture fixing plate 201 moves to the measuring position 101. The lifting motor 220 is activated, the lifting screw 218 rotates, and the lifting nut 219 carries the mounting plate 221 down. The center rod 204 is inserted into the mating hole 217. The upper bearing seat 212 acts on the upper bearing outer ring 503 of the bearing disc 500. Under the action of the lifting mechanism, the upper pressure head can apply a clamping force to the bearing disc 500, so that the lower bearing seat 203 and the lower bearing outer ring 502 are in contact, and the upper bearing seat 212 and the upper bearing outer ring 503 are in contact, thus achieving stable positioning of the bearing disc 500. The probe of the first sensor 401 acts on the upper brake surface 504 of the bearing disk 500, the probe of the second sensor 402 acts on the lower brake surface 505 of the bearing disk 500, and the probe of the third sensor 403 acts on the outer end face 506 of the bearing disk 500. The moving motor 312 actuates, the moving screw 310 rotates, and the moving nut 311 drives the base 302 to move towards the bearing disk 500 located at the measuring position 101 until the drive roller 301 contacts the outer circle of the bearing disk 500. Then, the rotating motor 306 actuates, driving the drive roller 301 to rotate. The drive roller 301 drives the bearing disk through friction. The robot rotates 500, and at the same time, the measuring sensor can measure the bearing disc 500. After the measurement is completed, the rotating motor 306 stops, the moving motor 312 moves, driving the roller 301 away from the bearing disc 500. The upper pressure head returns to its position under the action of the lifting motor 220. Under the action of the shifting motor 205, the fixture fixing plate 201 carries the measured bearing disc 500 back to the upper position 102. The robot can remove the measured bearing disc 500 and replace it with the next bearing disc 500. The above process is repeated to achieve full inspection of the bearing disc 500 and ensure the quality of the bearing disc 500.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic bearing disc measuring device, comprising a frame (100), characterized in that, It also includes a workpiece positioning mechanism (200), a workpiece rotating mechanism (300) and a workpiece measuring mechanism (400) disposed on the frame (100), wherein the workpiece positioning mechanism (200) is used to position the bearing disc (500). The workpiece positioning mechanism (200) includes a disc clamping mechanism and a disc pressing mechanism. The disc clamping mechanism includes a fixture fixing plate (201) and a clamping fixture disposed on the fixture fixing plate (201). The clamping fixture includes a support base (202), a lower bearing seat (203) disposed on the support base (202), and a center rod (204). The center rod (204) can pass through the center hole (501) of the bearing disc (500). The lower bearing seat (203) is used to position the lower bearing outer ring (502) of the bearing disc (500). The upper pressing mechanism includes an upper pressing head and a lifting mechanism for driving the upper pressing head to move up and down. The upper pressing head is provided with a mating hole (217) that can be inserted and cooperate with the center rod (204). The upper pressing head includes an upper bearing seat (212). Under the action of the lifting mechanism, the upper bearing seat (212) can act on the upper bearing outer ring (503) of the bearing disc (500). The workpiece rotation mechanism (300) is used to drive the bearing disk (500) to rotate, and the workpiece measuring mechanism (400) includes a measuring sensor for measuring the bearing disk (500); The bearing disc (500) includes an upper brake surface (504), a lower brake surface (505), and an outer end surface (506). The measuring sensor includes a first sensor (401) for measuring the upper brake surface (504), a second sensor (402) for measuring the lower brake surface (505), and a third sensor (403) for measuring the outer end surface (506). The workpiece measuring mechanism (400) further includes a support base (404), a horizontal plate (405) and a vertical plate disposed on the support base (404). The vertical plate is slidably disposed on the horizontal plate (405). The vertical plate includes a first vertical plate (406) and a second vertical plate (407). The support of the first sensor (401) is slidably disposed on the upper part of the first vertical plate (406). The support of the second sensor (402) is slidably disposed on the lower part of the first vertical plate (406). The support of the third sensor (403) is slidably disposed on the second vertical plate (407).

2. The automatic bearing disc measuring device according to claim 1, characterized in that, The disc pressing mechanism also includes a pressing shaft (213) and a tension spring (215) disposed in the cavity of the pressing shaft (213), and the pressing head is connected to the tension spring (215).

3. The automatic bearing disc measuring device according to claim 2, characterized in that, The pressing mechanism also includes a connecting plate (214), through which the pressing head is connected to the tension spring (215).

4. The automatic bearing disc measuring device according to claim 1, characterized in that, The positioning part on the lower bearing housing (203) for positioning the lower bearing outer ring (502) is a lower truncated cone structure, and the lower truncated cone structure is provided with multiple lower bearing rollers; the positioning part on the upper bearing housing (212) for positioning the upper bearing outer ring (503) is an upper truncated cone structure, and the upper truncated cone structure is provided with multiple upper bearing rollers.

5. The automatic bearing disc measuring device according to claim 1, characterized in that, The frame (100) is provided with a measuring position (101) and a loading position (102). The measuring position (101) is located below the upper pressure head. The tray loading mechanism is set on the frame (100) through a shifting mechanism. The tray loading mechanism can reciprocate between the measuring position (101) and the loading position (102) under the action of the shifting mechanism.

6. The automatic bearing disc measuring device according to any one of claims 1-5, characterized in that, The workpiece measuring mechanism (400) further includes a sensor adjustment mechanism for adjusting the probe position of the measuring sensor. The sensor adjustment mechanism includes a first lead screw (415), a second lead screw (417), and a third lead screw (419). The bracket of the first sensor (401) is connected to the first lead screw (415) through a first lead screw seat (416). The bracket of the second sensor (402) is connected to the second lead screw (417) through a second lead screw seat (418). The bracket of the third sensor (403) is connected to the third lead screw (419) through a third lead screw seat (420).

7. The automatic bearing disc measuring device according to any one of claims 1-5, characterized in that, The workpiece rotation mechanism (300) includes a roller bracket, a drive roller (301) rotatably mounted on the roller bracket, a roller rotation mechanism for driving the roller (301) to rotate, and a position moving mechanism for driving the roller (301) to move. Under the action of the position moving mechanism and the roller rotation mechanism, the drive roller (301) can act on the outer peripheral surface of the bearing disk (500) to drive the bearing disk (500) to rotate.

8. The automatic bearing disc measuring device according to claim 7, characterized in that, The workpiece rotation mechanism (300) also includes a base (302). The roller bracket is mounted on the base (302) via an elastic clamping mechanism. The elastic clamping mechanism includes a buffer spring (303), a spring guide rod (304), and a spring limiting plate (305). The spring limiting plate (305) is mounted on the base (302) and has a plate hole. The end of the spring guide rod (304) passes through the plate hole and connects to the roller bracket. The buffer spring (303) is fitted onto the spring guide rod (304) between the spring limiting plate (305) and the roller bracket.

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