An automatic positioning device for an inspection machine

Abstract

The utility model discloses a kind of automatic positioning devices of detection machine, including rotary cylinder and conical positioning platform, the conical positioning platform is coaxially arranged with rotary cylinder, top end is inserted into rotary cylinder upper, its circumferential inclined surface is equipped with multiple oblique installation rotating support roll, for under the action of gravity to brake disc is automatically centered and supports positioning.The conical positioning platform is connected with fixed disc by connecting disc, and spring two is equipped between the two, to form buffer structure, effectively avoid brake disc and positioning surface rigid contact.Positioning platform center is equipped with center hole, inner screw rod is equipped and cooperates nut to realize brake disc axial limit fixing.Rotary cylinder is provided with the transmission assembly by guide block, spring one, support shaft, when support shaft and brake disc hole position alignment, it can be automatically inserted to realize driving linkage.The device compact structure, strong adaptability, can realize the quick clamping of multiple specifications brake disc, automatic positioning and stable rotation, with good versatility and industrial application value.

Description

Technical Field

[0001] This utility model relates to the field of brake disc testing technology, specifically an automatic positioning device for a testing machine. Background Technology

[0002] During brake disc performance testing, the brake disc needs to be mounted on a rotating platform of the testing equipment for inspection of parameters such as appearance, dynamic balance, and thickness runout. Currently, brake discs in testing equipment are typically placed manually and then secured using mechanical jaws, clamps, or screw structures. However, this type of structure has several limitations: On the one hand, traditional clamping structures mostly use planar support or rigid guidance, which lack the ability to automatically correct and adapt to brake discs of different diameters, resulting in problems such as low positioning accuracy and center offset, affecting the accuracy of test results. On the other hand, some equipment requires manual assistance in alignment or replacement of clamps of different sizes to fit different models of brake discs, which is cumbersome and reduces testing efficiency. At the same time, if there is no buffer device during the placement of the brake disc, rigid contact can easily damage the edge of the disc, affecting its subsequent performance. Therefore, existing technologies still have significant shortcomings in achieving automatic, high-precision, and non-destructive positioning of brake discs. There is an urgent need for an automatic positioning device that can adapt to brake discs of different specifications, has buffer protection, a compact structure, stable positioning, and reliable drive, in order to improve the versatility, intelligence, and reliability of testing equipment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an automatic positioning device for a testing machine. This invention achieves automatic centering positioning of the brake disc under gravity by using a conical positioning platform in conjunction with an inclined rotating support roller structure. It can adapt to brake discs of different specifications, requires no manual intervention, and improves positioning accuracy and clamping efficiency. By setting a spring buffer structure, it effectively avoids rigid contact between the brake disc and the positioning component, prevents damage, and effectively solves the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic positioning device for an inspection machine, comprising a rotating cylinder and a conical positioning platform. The rotating cylinder and the conical positioning platform are concentrically arranged, with the conical positioning platform extending above the rotating cylinder. A rotating support roller is provided on the circumferential inclined surface of the conical positioning platform, serving to provide rolling support for the brake disc. This rotating support roller is configured with an inclined structure, so that when the brake disc is placed, it adaptively falls onto the conical positioning platform under the action of gravity, achieving automatic positioning. Due to the conical mechanism of the conical positioning platform, it can adaptively position itself. This device can adapt to different brake disc sizes, improving its practicality. A connecting plate is located below the conical positioning platform, and a fixing plate is located below the connecting plate. A second spring is installed between the fixing plate and the connecting plate. This second spring allows the conical positioning platform to buffer gravity, preventing hard contact with the brake disc and providing elastic rotational support. A central hole is located in the center of the conical positioning platform, and a screw is installed inside the central hole. The screw extends to the top of the conical positioning platform, and the brake disc is firmly fixed to the conical positioning platform through the cooperation of the nut and the screw.

[0005] Furthermore, a transmission assembly is installed on the inner wall of the rotating cylinder. The transmission assembly includes a lower support, a spring, a guide block, and a support shaft. The upper end of the support shaft extends above the guide block. The spring is positioned between the lower end of the support shaft and the lower support, providing a certain degree of springback to the support shaft. The brake disc presses against the support shaft. When the support shaft does not align with the hole on the brake disc, it is in a compressed state. When the brake disc rotates, the support shaft extends when it aligns with the hole on the brake disc. At this point, as the rotating cylinder rotates, the support shaft drives the brake disc to rotate on the conical positioning platform, thus achieving smooth rotation of the brake disc. The brake disc is then inspected using testing equipment. This method provides better testing results compared to directly fixing the brake disc to the rotating cylinder. The guide block and the lower support are fixedly connected to the inner wall of the rotating cylinder, either by welding or gluing. The lower end of the rotating cylinder can be driven by a belt or a sprocket, depending on the specific circumstances.

[0006] Furthermore, a perforated center guide post is provided at the center of the connecting plate. The upper end of the perforated center guide post is inserted into the center hole. A vertical groove is provided on the circumference of the conical positioning platform, and a limiting groove communicating with the center hole is provided at the bottom of the groove. A limiting rod is provided on the circumference of the perforated center guide post. The outer end of the limiting rod passes through the limiting groove, and a nut for fastening the perforated center guide post is provided on the limiting rod. By tightening the nut, the position of the perforated center guide post can be fixed. After loosening the nut, the conical positioning platform can move on the perforated center guide post, thereby adjusting the position of the conical positioning platform to adapt to different specifications of brake discs and improve the practicality of this device.

[0007] Furthermore, a positioning center guide post is set at the center of the fixed plate. The upper end of the positioning center guide post passes through the hole of the perforated center guide post. This structure is designed to guide the connecting plate and achieves elastic connection between the connecting plate and the fixed plate through spring two. A fixed shaft is set at the center of the fixed plate. The lower end of the fixed shaft is fixedly connected to the equipment, or it can be fixedly connected by a flange.

[0008] Furthermore, the conical positioning platform is provided with inclined grooves in the circumferential direction, with at least three inclined grooves, and the rotating support roller is set in the inclined grooves, so as to provide stable and reliable support for the brake disc through the rotating support roller.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model achieves automatic sliding positioning of the brake disc under gravity by setting a conical positioning platform in conjunction with an inclined rotating support roller, thereby achieving a fast and adaptive centering effect. Compared with traditional planar support or fixed clamping methods, this technical structure can accurately align without manual intervention, improving the installation efficiency and positioning accuracy of the brake disc. It is particularly suitable for batch testing scenarios with high requirements for efficiency and consistency.

[0010] 2. A spring buffer structure is used to connect the conical positioning platform and the fixed disc, giving the device a certain elastic deformation capacity. During the braking disc's downward pressing process, it can absorb the impact force and avoid mechanical damage caused by hard contact, thus enhancing the protection of the brake disc. At the same time, the guide spring support structure located inside the rotating cylinder can automatically insert and drive the disc to rotate when the disc hole is aligned with the support shaft, making the detection process more stable, the rotation speed more uniform, and the detection accuracy significantly improved.

[0011] 3. The overall structure of this utility model is compact, easy to integrate with existing equipment, simple to maintain, and highly reliable. It not only improves the compatibility of the testing equipment, but also enhances the automation level and operational safety of the overall system. Attached Figure Description

[0012] Figure 1 This is an overall axial view of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention that eliminates the rotating cylinder; Figure 3 This is a schematic diagram of the conical positioning platform of this utility model from a bottom view.

[0013] In the diagram: 1 Fixed shaft, 2 Rotating cylinder, 3 Lower support, 4 Spring 1, 5 Guide block, 6 Support shaft, 7 Rotating support roller, 8 Screw, 9 Conical positioning platform, 10 Inclined groove, 11 Vertical groove, 12 Limiting rod, 13 Connecting plate, 14 Spring 2, 15 Positioning center guide post, 16 Center guide post with hole, 17 Limiting long groove, 18 Center hole, 19 Fixed plate. Detailed Implementation

[0014] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] Please see Figure 1-3 This utility model provides a technical solution: an automatic positioning device for an inspection machine, in which a rotating cylinder 2 and a conical positioning platform 9 are concentrically arranged, with the conical positioning platform 9 extending above the rotating cylinder 2. A rotating support roller 7 is provided on the circumferential inclined surface of the conical positioning platform 9, which provides rolling support for the brake disc. The rotating support roller 7 is designed with an inclined structure, so that when the brake disc is placed, it adaptively falls onto the conical positioning platform 9 under the action of gravity, achieving automatic positioning. Due to the conical structure of the conical positioning platform 9, adaptive positioning can be achieved, and it can accommodate brake discs of different specifications. To improve the practicality of the device, a connecting plate 13 is provided below the conical positioning platform 9, and a fixing plate 19 is provided below the connecting plate 13. A spring 14 is provided between the fixing plate 19 and the connecting plate 13. The spring 14 enables the conical positioning platform 9 to buffer the weight, avoids rigid contact between the brake disc and the conical positioning platform 9, and plays the role of elastic buffering and rotation support. A center hole 18 is provided in the center of the conical positioning platform 9, and a screw 8 is provided in the center hole 18. The screw 8 passes through to the top of the conical positioning platform 9, and the brake disc is firmly fixed on the conical positioning platform 9 by the cooperation of the nut and the screw 8.

[0016] Based on the geometric characteristics of the conical positioning platform 9, the automatic positioning device uses multiple tilted rotating support rollers 7 to automatically slide down and fit against the inclined surface of the positioning platform 9 when the brake disc is placed, thus quickly achieving adaptive centering. The central screw 8 provides axial restraint to ensure the brake disc is securely installed. To avoid component damage caused by rigid impact, the conical positioning platform 9 forms an elastic connection structure with the fixed plate 19 through spring 2 14, thereby effectively buffering the downward pressure load and improving service life and system stability.

[0017] This implementation method can significantly improve the efficiency and accuracy of brake disc installation and positioning; its adaptive positioning structure reduces manual operation and alignment errors, enhances its ability to adapt to brake discs of different diameters and specifications, and significantly improves its versatility; the spring buffer connection effectively avoids damage caused by rigid collisions, enhancing the overall protection and safety of the equipment; in addition, the device has a compact structure, is easy to integrate and maintain, and is suitable for efficient and stable operation in batch testing, improving the reliability and intelligence level of the testing process.

[0018] In practical applications, the rotating support roller 7 can be made of different materials, such as nylon, stainless steel or ceramic, depending on the type of brake disc, to meet different working conditions; the stiffness and preload of the spring 14 can be adjusted according to the weight of the brake disc and the buffer requirements of the device to ensure reasonable elastic response; the screw 8 and nut can also be replaced by quick-release buckle or rotating cover structure to improve loading and unloading efficiency; in addition, the structure of the center hole 18 can be optimized into a cross guide groove or a positioning pin hole structure to improve axial limiting stability.

[0019] In one possible implementation, a transmission assembly is provided on the inner wall of the rotating cylinder 2. The transmission assembly includes a lower support 3, a spring 4, a guide block 5, and a support shaft 6. The upper end of the support shaft 6 extends above the guide block 5. The spring 4 is positioned between the lower end of the support shaft 6 and the lower support 3. The spring 4 provides a certain elastic force to the support shaft 6, and the brake disc presses against the support shaft 6. When the support shaft 6 does not correspond to the hole on the brake disc, the support shaft 6 is in a compressed state. When the brake disc is rotated, the support shaft 6 aligns with the hole, and the support shaft 6 can extend. The rotation of the rotating cylinder 2 causes the support shaft 6 to drive the brake disc to rotate smoothly on the conical positioning platform 9.

[0020] The transmission assembly utilizes the longitudinal elastic extension and retraction of the support shaft 6 and the limiting structure of the guide block 5 to ensure that the support shaft 6 can only be inserted when it is aligned with the brake disc hole. When the rotating cylinder 2 rotates, it drives the aligned support shaft 6 to rotate together with the brake disc, thereby achieving precise drive and cooperating with the testing equipment to complete the rotation testing task. The spring 4 provides the necessary rebound force to ensure that the support shaft automatically retracts after disengaging from the hole, preventing interference with other components.

[0021] This structure enhances the adaptability of the brake disc drive method, enabling smoother and more precise rotation and avoiding vibration and offset caused by traditional hard connections; it improves detection accuracy, reduces errors, and significantly enhances stability during rotation; the components can be fixed to the inner wall of the rotating cylinder by welding or gluing, which is flexible in process, easy to manufacture and maintain, and suitable for a variety of detection scenarios.

[0022] The center of the connecting plate 13 is provided with a perforated center guide post 16. The upper end of the perforated center guide post 16 is inserted into the center hole 18. The tapered positioning platform 9 is provided with a vertical groove 11 in the circumferential direction. The bottom of the groove is provided with a limiting long groove 17 that communicates with the center hole 18. A limiting rod 12 is provided on the circumference of the perforated center guide post 16. The outer end of the limiting rod 12 passes through the limiting long groove 17, and a nut for fastening the guide post 16 is provided on the limiting rod 12.

[0023] The structure allows the conical positioning platform 9 to move up and down along the central guide post 16 by cooperating with the limiting rod 12 and the limiting groove 17. Tightening the nut can lock the conical positioning platform 9 in the desired position, thereby adjusting its height relative to the brake disc. This structure provides a fine height adjustment function to accommodate brake discs of different thicknesses or sizes.

[0024] This structure enhances the adjustability and versatility of the conical positioning platform, solves the assembly problems caused by differences in brake disc sizes, and improves the overall adaptability of the device. At the same time, the limit rod 12 and the long groove structure are simple, reliable, and easy to operate, which is conducive to rapid on-site adjustment and meets the needs of multi-specification testing in mass production.

[0025] The limit rod 12 can be replaced with a sliding pin structure or an indexing pin with a positioning hole; the center guide post 16 with a hole can be set as a threaded telescopic structure or a pneumatic lifting column to achieve automatic adjustment function; the long groove 17 structure can be replaced with a spiral lifting guide rail or a slot structure to improve adjustment accuracy or structural stability.

[0026] The center of the fixed plate 19 is provided with a positioning center guide post 15. The upper end of the positioning center guide post 15 passes through the hole of the perforated center guide post 16. This structure serves to guide the connecting plate 13 and achieves an elastic connection between the connecting plate 13 and the fixed plate 19 through the second spring 14. The center of the fixed plate 19 is also provided with a fixed shaft 1. The lower end of the fixed shaft 1 is fixedly connected to the equipment, or a flange structure can be used.

[0027] The fit between the positioning center guide post 15 and the perforated center guide post 16 provides vertical guidance for the connecting plate 13, ensuring its precise movement in the set direction during installation and buffering; the second spring 14 provides flexible connection and buffer protection; the fixed shaft 1 ensures that the entire device is stably installed on the testing equipment platform, and the flange structure provides stronger structural strength.

[0028] This structure improves the overall guiding stability and buffer consistency of the device, avoiding errors caused by lateral offset; the spring-connected structure enhances impact resistance, protects the positioning components, is suitable for high-frequency use, and reduces the risk of equipment wear and damage; the structure is compact, the installation is stable, and it meets the long-term working requirements in industrial environments.

[0029] The positioning center guide post 15 can be a square post, a hollow cylinder, or a ball bearing guide structure to improve guiding accuracy and wear resistance; the fixed shaft 1 can be replaced with a quick-release structure or a plug-in connection to improve replacement convenience; the spring 2 14 can be a gas spring or a composite elastomer to adjust the buffering characteristics.

[0030] The conical positioning platform 9 has inclined grooves 10 in the circumferential direction. There are at least three inclined grooves 10. The rotating support roller 7 is set in the inclined groove 10. The rotating support roller 7 provides stable and reliable support for the brake disc.

[0031] Multiple inclined grooves 10 are evenly distributed on the circumferential surface of the conical positioning platform 9, so that the rotating support roller 7 installed therein can match multiple contact points on the lower surface of the brake disc, providing balanced support force and reducing vibration and jumping during rotation; the rolling support also provides fine-tuning sliding function to achieve more stable positioning.

[0032] This structure effectively improves the vertical support stability of the brake disc, reducing the risk of skewing and damage caused by single-point support; the multi-point support structure is reasonably distributed, improving concentricity and balance during rotation, making the test data more accurate, and the support structure is easy to disassemble and maintain, and is stable and reliable.

[0033] The angle or number of the inclined groove 10 can be optimized according to the size of the brake disc, and a three-, four-, six-, etc. structure can be adopted to adapt to different symmetrical disc types; the rotating support roller 7 can be a ball structure, bearing assembly or rotatable disc part to meet different wear resistance and rotation performance requirements; the inclined groove 10 can be quickly adjusted in structure through molding or module replacement.

[0034] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. An automatic positioning device for an inspection machine, comprising a rotating drum (2) and a conical positioning table (9), characterized in that: The rotating cylinder (2) and the conical positioning platform (9) are concentrically arranged. The conical positioning platform (9) extends above the rotating cylinder (2). A rotating support roller (7) is provided on the circumferential inclined surface of the conical positioning platform (9). The rotating support roller (7) is set in an inclined structure. A connecting plate (13) is provided below the conical positioning platform (9). A fixed plate (19) is provided below the connecting plate (13). A spring (14) is provided between the fixed plate (19) and the connecting plate (13). A central hole (18) is provided in the center of the conical positioning platform (9). A screw (8) is provided in the central hole (18). The screw (8) passes through to the top of the conical positioning platform (9).

2. The automatic positioning device for a testing machine according to claim 1, characterized in that: A transmission assembly is provided on the inner wall of the rotating cylinder (2). The transmission assembly includes a lower support (3), a spring (4), a guide block (5), and a support shaft (6). The upper end of the support shaft (6) passes through the guide block (5). The spring (4) is located between the lower end of the support shaft (6) and the lower support (3). The guide block (5) and the lower support (3) are fixedly connected to the inner wall of the rotating cylinder (2).

3. The automatic positioning device for a testing machine according to claim 1, wherein: The center of the connecting plate (13) is provided with a perforated center guide post (16), the upper end of which is inserted into the center hole (18). The tapered positioning platform (9) is provided with a vertical groove (11) in the circumferential direction, and a limiting long groove (17) communicating with the center hole (18) is provided at the bottom of the groove. A limiting rod (12) is provided on the circumference of the perforated center guide post (16), and the outer end of the limiting rod (12) passes through the limiting long groove (17). A nut for fastening the perforated center guide post (16) is provided on the limiting rod (12).

4. The automatic positioning device for a testing machine according to claim 1, wherein: The center of the fixed plate (19) is provided with a positioning center guide post (15), the upper end of the positioning center guide post (15) passes through the hole of the center guide post (16) with holes, and the center of the fixed plate (19) is provided with a fixed shaft (1).

5. The automatic positioning device for a testing machine according to claim 1, wherein: The conical positioning platform (9) is provided with inclined grooves (10) in the circumferential direction. There are at least three inclined grooves (10), and the rotating support roller (7) is set in the inclined grooves (10).

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