A brake disc workpiece positioning device
Patent Information
- Application Number
- CN202522216061.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-21
AI Technical Summary
[0004]传统的对刹车盘的测量是由人工搬运刹车盘，并将刹车盘放在支撑工装上，然后采用测量表如千分表的检测端作用在刹车盘上，测量过程需要人工手动转动刹车盘，刹车盘重，手动转动操作，以及人工搬运上下料，长时间操作，工人劳动强度大，测量效率也低，由于测量效率低，现有的刹车盘多采用抽检的方式，无法做到100%的全检，难以保证刹车盘的质量控制
[0008]本实用新型的有益效果是：锥套能够对刹车盘的中心孔进行定位起到定心的作用，对刹车盘的放置起到中心引导以及中心定位的作用，锥套的浮动设置，一方面对刹车盘的放置能够起到缓冲作用，另一方面确保刹车盘的盘端面能够作用在定位胎具上，锥套的定心以及定位胎具的承载，能够实现对刹车盘稳定且准确的定位，确保了刹车盘在测量过程中的稳定支撑，可以满足利用机器人抓取刹车盘实现自动定位的需求，为刹车盘的自动化测量提供了有力支持，有助于提升刹车盘的测量效率及测量的准确性。
Smart Images
Figure CN224780524U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a brake disc workpiece positioning device, belonging to the field of brake disc measurement and positioning technology. Background Technology
[0002] A brake is a component in a braking system used to generate braking force that impedes the movement or tendency of a vehicle to move. Currently, 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, also known as a brake disc. Its end face is the working surface, and the friction elements clamp the brake disc from both sides to generate braking force.
[0003] The quality of a car's braking system is directly related to the safety of drivers and pedestrians. The car brake disc is a key component that affects the car's safety performance. Therefore, after the car brake disc is manufactured, it is necessary to measure the end face runout and other parameters of the brake disc.
[0004] Traditionally, brake disc measurement involves manually handling the brake disc and placing it on a support fixture. Then, a measuring instrument, such as a dial indicator, is used to measure the brake disc. The measurement process requires manual rotation of the brake disc, which is heavy. Manual rotation and handling of the disc, along with long hours of operation, result in high labor intensity and low measurement efficiency. Due to this low efficiency, most existing brake discs are inspected by sampling, making it impossible to achieve 100% inspection and ensuring quality control.
[0005] To match the automated production of brake discs and solve the aforementioned problems of existing manual measurement of brake discs, research began on a brake disc measuring device capable of automated measurement. To achieve automated measurement of brake discs, the positioning problem of brake discs must be solved. Therefore, a brake disc workpiece positioning device is needed to achieve stable support for the brake discs, thus preparing for automated measurement of brake discs. Utility Model Content
[0006] This utility model addresses the shortcomings of existing technologies by providing a brake disc workpiece positioning device.
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A brake disc workpiece positioning device includes a worktable, a positioning fixture and a cone sleeve. The positioning fixture is set on the worktable and has a cylindrical structure. The positioning fixture is used to support the disc end face of the brake disc. The cone sleeve is located inside the positioning fixture and is used to position the center hole of the brake disc. The cone sleeve is floatingly set on the worktable.
[0008] The beneficial effects of this utility model are as follows: the cone sleeve can position the center hole of the brake disc, playing a centering role, and guiding and positioning the placement of the brake disc. The floating design of the cone sleeve can buffer the placement of the brake disc on the one hand, and ensure that the end face of the brake disc can act on the positioning fixture on the other hand. The centering of the cone sleeve and the load-bearing of the positioning fixture can achieve stable and accurate positioning of the brake disc, ensuring stable support of the brake disc during the measurement process. It can meet the needs of automatic positioning by using a robot to grasp the brake disc, providing strong support for the automated measurement of brake discs and helping to improve the measurement efficiency and accuracy of brake discs.
[0009] Based on the above technical solution, the present invention can be further improved as follows.
[0010] Furthermore, the brake disc includes a disc cap, and the disc end face of the brake disc is the inner end face of the disc cap.
[0011] The beneficial effect of adopting the above-mentioned further solution is that the inner end face of the brake disc cap is used as a reference surface and can be used as a detection reference. The positioning fixture can achieve positioning support for the brake disc by acting on the inner end face of the disc cap. With the center positioning of the cone sleeve, the brake disc workpiece can be stably and accurately positioned, which further improves the stability and accuracy of brake disc positioning and enhances the accuracy of brake disc measurement.
[0012] Furthermore, the conical sleeve is slidably mounted on the conical sleeve support shaft, the conical sleeve support shaft is provided with a limiting platform, a spring is provided between the conical sleeve and the limiting platform, and the spring is fitted on the outside of the conical sleeve support shaft.
[0013] The beneficial effect of adopting the above-mentioned further solution is that the cone sleeve is slidably mounted on the cone sleeve support shaft, and together with the limiting platform and spring, the floating function of the cone sleeve is realized. When the cone sleeve is subjected to the pressure of the brake disc, it can move downward to compress the spring, which can play a buffering role. At the same time, the elastic force of the spring can ensure that the end face of the brake disc can contact the positioning jig after the brake disc is placed, maintaining stable centering and positioning load-bearing effects.
[0014] Furthermore, it also includes a cone sleeve lifting mechanism, which is used to adjust the compression of the spring.
[0015] The beneficial effect of adopting the above-mentioned further solution is that the compression of the spring varies depending on the weight of the brake disc. A heavier brake disc results in a larger compression of the spring, which meets the requirements of the positioning fixture for supporting the disc end face. However, for lighter brake discs, the compression of the spring is smaller, which may prevent the disc end face from contacting the positioning fixture. To ensure that the disc end face positioned on the cone sleeve can contact the positioning fixture and achieve stable support, a cone sleeve lifting mechanism is provided. This mechanism adjusts the spring compression and controls the appropriate cone sleeve elasticity, ensuring that the inner end face of the brake disc cap is accurately supported on the positioning fixture. This better adapts to the centering and stable positioning requirements of various brake disc models, enhances the versatility and practicality of the positioning device, and provides strong support for the measurement of multiple brake disc models.
[0016] Furthermore, the tapered sleeve lifting mechanism includes a drive electric cylinder, which is mounted on the worktable, and the piston rod of the drive electric cylinder is connected to the tapered sleeve support shaft.
[0017] The beneficial effects of adopting the above-mentioned further solution are that the drive electric cylinder can provide stable power output, ensuring that the cone sleeve can move smoothly up and down. The lifting height of the cone sleeve can be controlled according to the weight of the brake disc, thereby achieving height adjustment of the cone sleeve to ensure that the end face of the brake disc placed on the cone sleeve can receive support from the positioning fixture. This enhances the adaptability of the positioning device to brake discs of different specifications and the accuracy of positioning.
[0018] Furthermore, the positioning fixture is mounted on the worktable via a mounting sleeve, and the mounting sleeve has a shaft hole through which the tapered sleeve support shaft passes.
[0019] The advantages of adopting the above-mentioned further solution are that the mounting sleeve facilitates the installation and removal of the positioning fixture, and the corresponding positioning fixture can be replaced according to the different sizes and specifications of the brake disc. The shaft hole of the mounting sleeve ensures that the cone sleeve support shaft can pass through smoothly to support the cone sleeve.
[0020] Furthermore, a three-jaw chuck is provided between the positioning fixture and the mounting sleeve. The three-jaw chuck includes a chuck body and three jaws. The chuck body is connected to the mounting sleeve, and the positioning fixture is supported on the jaws.
[0021] The beneficial effect of adopting the above-mentioned further solution is that the three-jaw chuck can use existing manual or pneumatic chucks, and the radial position of the jaws can be adjusted. In this way, when the positioning jig is replaced according to the brake disc of different specifications, the position of the jaws can be radially adjusted according to the diameter of the support ring surface of different positioning jigs, so that the jaws can stably lock the positioning jigs.
[0022] Furthermore, the tapered sleeve support shaft includes a tapered sleeve connecting shaft and a spline shaft. The tapered sleeve is slidably disposed on the upper part of the tapered sleeve connecting shaft, and the lower part of the tapered sleeve connecting shaft is connected to the spline shaft. The mounting sleeve is provided with a spline sleeve that mates with the spline shaft.
[0023] The beneficial effect of adopting the above-mentioned further solution is that the cooperation between the spline shaft and the spline sleeve enables the transmission and stable connection of the tapered sleeve support shaft, avoiding relative rotation during brake disc positioning, thereby ensuring the accuracy and reliability of positioning. The structure of the tapered sleeve support shaft also facilitates individual maintenance of the tapered sleeve connecting shaft or the spline shaft, reducing maintenance costs.
[0024] Furthermore, the tapered sleeve is connected to the tapered sleeve support shaft via an inner core cone, and the top of the tapered sleeve support shaft is provided with a shaft top cover, which is used to limit the inner core cone, and the tapered sleeve and the inner core cone are in tapered surface fit.
[0025] The beneficial effects of adopting the above-mentioned further solution are that the inner core cone and the tapered sleeve are matched with a tapered surface, which achieves stable support for the tapered sleeve through the self-locking characteristic of the tapered surface. At the same time, it is convenient to replace the tapered sleeve. The limiting effect of the shaft top cover on the inner core cone can accurately control the axial position of the inner core cone and prevent the inner core cone from disengaging from the tapered sleeve support shaft.
[0026] Furthermore, a tapered sleeve connecting body is provided between the tapered sleeve and the inner core cone, the tapered sleeve is disposed on the tapered sleeve connecting body, and the tapered sleeve connecting body and the inner core cone are in tapered surface fit.
[0027] The advantages of adopting the above-mentioned further solution are that the tapered sleeve can be installed on the tapered sleeve connector with fasteners. The inner wall of the tapered sleeve connector has a tapered surface structure that matches the outer surface of the inner core cone. The fit between the tapered sleeve connector and the tapered surface of the inner core cone ensures a tight fit between them. Furthermore, the self-locking property of the tapered surface effectively prevents the tapered sleeve from loosening or falling off during operation. The design of the tapered sleeve connector eliminates the need for each tapered sleeve's inner wall to be a tapered surface structure; only the tapered sleeve connector needs to be designed with a tapered surface structure that matches the inner core cone. Additionally, it facilitates the replacement of the tapered sleeve. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction; Figure 4 This is a three-dimensional structural diagram of the present invention; Figure 5This is a structural schematic diagram of the positioning device of this utility model in the state of supporting the brake disc; Figure 6 This is a schematic diagram of the brake disc structure; Figure 7 This is a structural schematic diagram of the brake disc viewed from below. Figure 8 This is a schematic diagram of the cross-sectional structure of the brake disc; In the diagram, 100 is the worktable; 200 is the positioning fixture; 201 is the mounting sleeve; 202 is the three-jaw chuck; 300 is the cone sleeve; 301 is the cone sleeve connector; 302 is the inner core cone; 303 is the cone sleeve connecting shaft; 304 is the spring; 305 is the limit stage; 306 is the drive cylinder; 307 is the cylinder seat; 308 is the spline shaft; 309 is the spline sleeve; 400 is the brake disc; 401 is the center hole; 402 is the disc end face; and 403 is the disc cap. Detailed Implementation
[0029] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.
[0030] like Figures 1-8 As shown, a brake disc workpiece positioning device includes a worktable 100, a positioning fixture 200, and a conical sleeve 300. The positioning fixture 200 is disposed on the worktable 100 and has a cylindrical structure. The positioning fixture 200 is used to support the disc end face 402 of the brake disc 400. The conical sleeve 300 is located inside the positioning fixture 200 and is used to position the center hole 401 of the brake disc 400. The conical sleeve 300 is floatingly disposed on the worktable 100.
[0031] The brake disc 400 includes a disc cap 403, and the disc end face 402 of the brake disc 400 is the inner end face of the disc cap 403. The inner end face of the disc cap 403 serves as a reference surface and can be used as a testing reference. The positioning fixture 200 can provide positioning support for the brake disc 400 by acting on the inner end face of the disc cap 403. Combined with the center positioning of the cone sleeve 300, this achieves stable and accurate positioning of the brake disc 400, further improving the stability and accuracy of brake disc positioning and enhancing the accuracy of brake disc measurement.
[0032] The conical sleeve 300 is slidably mounted on the conical sleeve support shaft, which is provided with a limiting platform 305. A spring 304 is provided between the conical sleeve 300 and the limiting platform 305, and the spring 304 is fitted onto the outside of the conical sleeve support shaft. The conical sleeve 300, slidably mounted on the conical sleeve support shaft, together with the limiting platform 305 and the spring 304, enables the floating function of the conical sleeve 300. When the conical sleeve 300 is subjected to pressure from the brake disc 400, it can move downward to compress the spring 304. The spring 304 provides a buffering effect, and at the same time, the elasticity of the spring 304 ensures that the disc end face 402 of the brake disc 400 can contact the positioning jig 200 after it is placed, maintaining stable centering and positioning load-bearing effect.
[0033] It also includes a cone sleeve lifting mechanism, which is used to adjust the compression of the spring 304. The compression of the spring 304 will be different for brake discs 400 of different weights. The heavier the brake disc 400, the greater the compression of the spring 304, which can meet the requirements of the positioning jig 200 to support the disc end face 402 of the brake disc 400. For the lightweight brake disc 400, the compression of the spring 304 is small, which may cause the disc end face 402 of the brake disc 400 to fail to contact the positioning fixture 200. In order to ensure that the disc end face 402 of the brake disc 400, positioned on the cone sleeve 300, can contact the positioning fixture 200, so as to achieve the purpose of stable support of the positioning fixture 200 for the brake disc 400, a cone sleeve lifting mechanism is set up. The cone sleeve lifting mechanism can adjust the compression of the spring 304 and control the appropriate cone sleeve elasticity, thereby ensuring that the inner end face of the brake disc cap can be accurately supported on the positioning fixture, better adapting to the centering and stable positioning requirements of various types of brake discs, enhancing the versatility and practicality of the positioning device, and providing strong support for the measurement of multiple brake disc models.
[0034] The cone sleeve lifting mechanism includes a drive cylinder 306, which is mounted on the worktable 100. The piston rod of the drive cylinder 306 is connected to the cone sleeve support shaft. The drive cylinder 306 provides stable power output, ensuring that the cone sleeve 300 can move smoothly up and down. The lifting height of the cone sleeve 300 can be controlled according to the weight of the brake disc 400, thereby adjusting the height of the cone sleeve 300 to ensure that the disc end face 402 of the brake disc 400 placed on the cone sleeve 300 can receive support from the positioning fixture 200. This enhances the adaptability of the positioning device to brake discs 400 of different specifications and the accuracy of positioning.
[0035] The drive cylinder 306 is mounted on the bottom of the worktable 100 via a cylinder base 307.
[0036] A gap is provided between the positioning jig 200 and the cone sleeve 300. The cone sleeve 300 can position the center hole 401 of the brake disc 400, and the positioning jig 200 can support the disc end face 402 of the brake disc 400. In order to further ensure the stable positioning of the brake disc 400, while ensuring the support of the positioning jig 200 for the brake disc 400, the supporting surface of the positioning jig 200 can maintain a certain distance from the cone sleeve 300, as long as it does not affect the subsequent measurement of the end face runout of the brake disc 400.
[0037] The positioning fixture 200 is mounted on the worktable 100 via a mounting sleeve 201, which has a shaft hole for the tapered sleeve support shaft to pass through. The mounting sleeve 201 facilitates the installation and removal of the positioning fixture 200, allowing for the replacement of the corresponding positioning fixture 200 with brake discs 400 of different sizes and specifications. The shaft hole of the mounting sleeve 201 ensures that the tapered sleeve support shaft can pass smoothly through, thereby supporting the tapered sleeve 300.
[0038] A three-jaw chuck 202 is also provided between the positioning jig 200 and the mounting sleeve 201. The three-jaw chuck 202 includes a chuck body and three jaws. The chuck body is connected to the mounting sleeve 201, and the positioning jig 200 is supported on the jaws. The three-jaw chuck 202 can be an existing manual or pneumatic chuck, and the radial position of the jaws can be adjusted. Thus, when the positioning jig 200 is replaced according to different specifications of brake discs 400, the position of the jaws can be radially adjusted according to the diameter of the supporting ring surface of different positioning jigs 200, so that the jaws can stably lock the positioning jig 200.
[0039] The tapered sleeve support shaft includes a tapered sleeve connecting shaft 303 and a splined shaft 308. The tapered sleeve 300 is slidably disposed on the upper part of the tapered sleeve connecting shaft 303, and the lower part of the tapered sleeve connecting shaft 303 is connected to the splined shaft 308. The mounting sleeve 201 is provided with a splined sleeve 309 that mates with the splined shaft 308. The mating of the splined shaft 308 and the splined sleeve 309 enables the transmission and stable connection of the tapered sleeve support shaft, preventing relative rotation during the positioning of the brake disc 400, thereby ensuring the accuracy and reliability of the positioning. The structure of the tapered sleeve support shaft also facilitates the individual maintenance of the tapered sleeve connecting shaft 303 or the splined shaft 308, reducing maintenance costs.
[0040] The tapered sleeve 300 is connected to the tapered sleeve support shaft via the inner core cone 302. The top of the tapered sleeve support shaft is provided with a shaft cap, which limits the inner core cone 302. The tapered sleeve 300 and the inner core cone 302 have a tapered surface fit. The tapered surface fit between the inner core cone 302 and the tapered sleeve 300 achieves stable support for the tapered sleeve 300 through the self-locking characteristic of the tapered surface, and also facilitates the replacement of the tapered sleeve 300. The limiting effect of the shaft cap on the inner core cone 302 accurately controls the axial position of the inner core cone 302, preventing the inner core cone 302 from disengaging from the tapered sleeve support shaft.
[0041] A tapered sleeve connector 301 is provided between the tapered sleeve 300 and the inner core cone 302. The tapered sleeve 300 is mounted on the tapered sleeve connector 301, and the tapered sleeve connector 301 and the inner core cone 302 have a tapered surface fit. The tapered sleeve 300 can be installed on the tapered sleeve connector 301 with fasteners. The inner wall of the tapered sleeve connector 301 has a tapered surface structure that matches the outer surface of the inner core cone 302. The tapered surface fit between the tapered sleeve connector 301 and the inner core cone 302 ensures a tight fit between the two and also utilizes the self-locking property of the tapered surface to effectively prevent the tapered sleeve 300 from loosening or falling off during operation. The design of the tapered sleeve connector 301 means that the inner wall of each tapered sleeve 300 does not need to be set as a tapered surface structure; only the tapered sleeve connector 301 needs to be set as a tapered surface structure that fits with the inner core cone 302. In addition, it also facilitates the replacement of the tapered sleeve 300.
[0042] This utility model discloses a brake disc workpiece positioning device. The loading of the brake disc 400 can be accomplished by a robot gripping the brake disc 400. The robot grips the brake disc 400 and moves it above the positioning device, aligning the center hole 401 of the brake disc 400 with the tapered sleeve 300. Then, the brake disc 400 moves downwards. Under the guidance and positioning of the tapered sleeve 300, the center hole 401 of the brake disc 400 is positioned by the tapered sleeve 300. The floating design of the tapered sleeve 300 effectively avoids hard impact between the brake disc 400 and the tapered sleeve 300. Afterwards, the robot releases the brake disc. The brake disc 400, under its own weight, moves downward to compress the spring 304. The disc end face 402 of the brake disc 400, i.e., the inner end face of the disc cap 403 of the brake disc 400, can contact the positioning fixture 200. The positioning fixture 200 provides positioning support for the disc end face 402 of the brake disc 400, thereby achieving stable and accurate positioning of the brake disc 400. This ensures stable support for the brake disc 400 during the measurement process and meets the requirement of automatic positioning by using a robot to grasp the brake disc 400, providing strong support for the automated measurement of the brake disc 400.
[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A brake disc workpiece positioning device, characterized in that, The device includes a worktable (100), a positioning fixture (200), and a cone sleeve (300). The positioning fixture (200) is mounted on the worktable (100) and has a cylindrical structure. The positioning fixture (200) is used to support the disc end face (402) of the brake disc (400). The cone sleeve (300) is located inside the positioning fixture (200) and is used to position the center hole (401) of the brake disc (400). The cone sleeve (300) is floating on the worktable (100).
2. The brake disc workpiece positioning device according to claim 1, characterized in that, The brake disc (400) includes a disc cap (403), and the disc end face (402) of the brake disc (400) is the inner end face of the disc cap (403).
3. The brake disc workpiece positioning device according to claim 2, characterized in that, The conical sleeve (300) is slidably disposed on the conical sleeve support shaft, and a limiting platform (305) is provided on the conical sleeve support shaft. A spring (304) is provided between the conical sleeve (300) and the limiting platform (305), and the spring (304) is fitted on the outside of the conical sleeve support shaft.
4. The brake disc workpiece positioning device according to claim 3, characterized in that, It also includes a cone sleeve lifting mechanism, which is used to adjust the compression of the spring.
5. The brake disc workpiece positioning device according to claim 4, characterized in that, The tapered sleeve lifting mechanism includes a drive cylinder (306), which is mounted on the worktable (100). The piston rod of the drive cylinder (306) is connected to the tapered sleeve support shaft.
6. The brake disc workpiece positioning device according to any one of claims 1-5, characterized in that, The positioning fixture (200) is mounted on the workbench (100) via a mounting sleeve (201), and the mounting sleeve (201) is provided with a shaft hole through which the tapered sleeve support shaft passes.
7. The brake disc workpiece positioning device according to claim 6, characterized in that, A three-jaw chuck (202) is also provided between the positioning jig (200) and the mounting sleeve (201). The three-jaw chuck (202) includes a chuck body and three jaws. The chuck body is connected to the mounting sleeve (201), and the positioning jig (200) is supported on the jaws.
8. The brake disc workpiece positioning device according to claim 6, characterized in that, The tapered sleeve support shaft includes a tapered sleeve connecting shaft (303) and a spline shaft (308). The tapered sleeve (300) is slidably disposed on the upper part of the tapered sleeve connecting shaft (303), and the lower part of the tapered sleeve connecting shaft (303) is connected to the spline shaft (308). The mounting sleeve (201) is provided with a spline sleeve (309) that cooperates with the spline shaft (308).
9. The brake disc workpiece positioning device according to any one of claims 3-5, characterized in that, The tapered sleeve (300) is connected to the tapered sleeve support shaft via the inner core cone (302). The top of the tapered sleeve support shaft is provided with a shaft top cover, which is used to limit the inner core cone (302). The tapered sleeve (300) and the inner core cone (302) are in tapered surface fit.
10. The brake disc workpiece positioning device according to claim 9, characterized in that, A tapered sleeve connector (301) is provided between the tapered sleeve (300) and the inner core cone (302). The tapered sleeve (300) is disposed on the tapered sleeve connector (301), and the tapered sleeve connector (301) and the inner core cone (302) are in tapered surface fit.