An automatic measuring device for the outer diameter of a tire

Abstract

The utility model discloses a kind of automatic measuring device of tire outer edge size, belong to tire detection technical field, including rack, driven moving station, fixed station and multiple groups of driven moving station are equipped on rack, and driven moving station is driven to move by first air cylinder, three cooperation tire stable clamping;Lifting platform that drives tire to lift is further equipped on rack, photoelectric switch and point laser range finder for measurement are installed above driven moving station, and photoelectric switch and point laser range finder can be adjusted position by linear guide rail.This device is replaced by artificial operation through automatic positioning clamping, improves the measurement efficiency and accuracy, strong universality, suitable for outer edge size batch detection scene in tire production and manufacture.

Description

Technical Field

[0001] This utility model relates to the field of tire inspection technology, specifically to an automatic tire outer edge dimension measuring device. Background Technology

[0002] With the continuous development of the tire industry, the requirements for tire stability, safety, and other technical performance indicators are becoming increasingly stringent. Differences in tire outer dimensions can affect vehicle handling, safety, comfort, and fuel consumption, and can also lead to uneven tire stress, accelerated wear, and shortened tire lifespan. Therefore, measuring and verifying tire outer dimensions has become a crucial step in the tire manufacturing process.

[0003] Currently, the industry mainly relies on manual measurement for tire outer dimensions. Workers need to hold measuring tools (such as tape measures and calipers) and operate around the tire. This is not only inefficient and difficult to meet the production needs of large-scale tire inspection, but also susceptible to subjective factors such as operating techniques and measurement angles during manual measurement, resulting in unstable measurement accuracy and a significant risk of measurement error.

[0004] Therefore, there is an urgent need to design an automatic tire outer edge dimension measuring device that can achieve automatic positioning and clamping, efficient and accurate measurement, and strong versatility, in order to solve the shortcomings of existing technologies. Utility Model Content

[0005] This invention aims to solve the above-mentioned technical problems by providing an automatic tire outer edge dimension measuring device.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: An automatic tire outer edge dimension measuring device includes a frame. The frame is equipped with an active moving station and a fixed station for clamping tires. The active moving station and the fixed station cooperate to stably clamp tires of different widths. Multiple sets of auxiliary passive moving stations are rotatably connected between the active moving station and the fixed station on the frame. These passive moving stations can adaptively adjust their positions according to the actual width of the tire, further improving clamping stability and preventing tire displacement during measurement. A lifting platform is installed on the frame to raise and lower the tire, allowing adjustment of the tire's height to ensure precise alignment with the measuring components. Above the active moving station on the frame are a photoelectric switch and a point laser rangefinder for measuring tire outer edge dimensions. The point laser rangefinder accurately measures relevant dimensional parameters of the tire's outer edge, enabling automatic and accurate detection of tire outer edge dimensions.

[0007] Furthermore, a first cylinder is fixedly connected to one side of the frame, and the telescopic end of the first cylinder is connected to the active moving station. Through the telescopic action of the first cylinder, the active moving station can be driven to move horizontally along the frame, thereby flexibly adjusting the distance between the active moving station and the fixed station to adapt to the clamping requirements of tires of different widths. A connecting frame is installed at the upper end of the active moving station and the multiple sets of driven moving stations. A first disc frame for clamping tires is installed on one side of the connecting frame. A mandrel that passes through the tire is coaxially installed at the center of the first disc frame. The mandrel can be inserted into the center hole of the tire to perform radial positioning of the tire, and cooperate with the first disc frame to achieve the initial clamping and fixing of the tire.

[0008] Furthermore, a second disc frame for clamping the tire is installed on the other side of the connecting frame and on the fixed station. The second disc frame, the connecting frame, and the fixed station are provided with grooves for the mandrel to enter. When the active moving station moves to the fixed station under the drive of the first cylinder, the mandrel can be inserted into the corresponding groove, so that the first disc frame and the second disc frame together clamp the two sides of the tire, further improving the stability and reliability of clamping and preventing the tire from rotating or displacing during the measurement process.

[0009] Furthermore, the lower ends of the active and passive moving stations are limited and guided by rollers and guide rails on the frame. The cooperation between the rollers and guide rails not only reduces the friction of the active and passive moving stations during movement, making the movement process smoother, but also precisely limits the direction of movement, ensuring that the active and passive moving stations always move along the preset trajectory, thus guaranteeing the positioning accuracy when clamping tires.

[0010] Furthermore, the lifting platform includes a second cylinder connected to the frame. The telescopic end of the second cylinder is equipped with a lifting frame that supports the lifting of the tire. The second cylinder serves as a power source and can drive the lifting frame to rise and fall vertically, thereby causing the tire placed on the lifting frame to rise and fall synchronously. This facilitates the adjustment of the tire height according to the position of the measuring components, ensuring that the outer edge of the tire is accurately within the detection range of the photoelectric switch and the point laser rangefinder, thus improving measurement accuracy.

[0011] Furthermore, a counterweight is installed at one end of the connecting frame of the active moving station near the first cylinder. The counterweight can balance the weight of the active moving station during the movement process, and avoid tilting or jamming during movement due to excessive weight on one side of the active moving station, thus ensuring the stability and flexibility of the active moving station.

[0012] Furthermore, the photoelectric switch is mounted on a photoelectric switch mounting plate. The photoelectric switch mounting plate and the point laser rangefinder slide above the tire via a linear guide rail on the frame. Guided by the linear guide rail, the photoelectric switch mounting plate and the point laser rangefinder can be moved horizontally. When the tire at a certain workstation is inflated, according to the PLC signal indication, the laser rangefinder slides to the corresponding workstation position via the linear guide rail. The photoelectric switch stops sliding after sensing the limit baffle and begins to measure the tire after inflation.

[0013] With the above structure, this utility model has the following advantages: This invention, by setting up an active moving station, a fixed station, and multiple sets of driven moving stations, and cooperating with the first cylinder to drive the active moving station to move, can achieve stable clamping of the tire. Moreover, the driven moving stations can adaptively adjust their positions to further improve clamping stability, effectively solving the problem of poor tire positioning and clamping effect of existing equipment. At the same time, the cooperation between the mandrel and the groove realizes the radial positioning of the tire, preventing the tire from rotating or shifting during the measurement process, thus ensuring accurate measurement.

[0014] By using photoelectric switches and point laser rangefinders to measure the outer edge dimensions of tires, the traditional manual measurement method is replaced. This not only significantly improves measurement efficiency and meets the needs of large-volume tire inspection, but also avoids the influence of subjective human factors on measurement accuracy, thus significantly improving measurement accuracy.

[0015] The lifting platform allows for flexible adjustment of tire height, ensuring that the outer edge of the tire is precisely within the detection range of the measuring components, further improving measurement accuracy. The cooperation between the rollers at the lower end of the active moving station and the frame guide rail, along with the setting of the counterweight, ensures the smoothness, stability, and flexibility of the active moving station's movement. The overall equipment structure is reasonably designed, easy to operate, and highly practical.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is the front view of this utility model.

[0019] Figure 2 This is a side view of the present invention.

[0020] As shown in the figure: 1. Frame; 2. Active moving station; 3. First tray; 4. Second tray; 5. Groove; 6. Mandrel; 7. Connecting frame; 8. Fixed station; 9. Handle; 10. Lifting platform; 11. First cylinder; 12. Linear guide rail; 13. Point laser rangefinder; 14. Photoelectric switch; 15. Tire; 16. Photoelectric switch mounting plate; 17. Limit baffle; 18. Second cylinder; 19. Roller; 20. Guide rail; 21. Counterweight; 22. Driven moving station; 23. Lifting frame; Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] The present invention will now be described in further detail in conjunction with the full text.

[0024] Combined with appendix Figures 1-2An automatic tire outer edge dimension measuring device includes a frame 1, which serves as the mounting base for the entire device and provides stable support for all components. The frame 1 is equipped with an active moving station 2 and a fixed station 8 for clamping a tire 15. The active moving station 2 can move along the frame 1 and cooperates with the fixed station 8 to clamp the tire 15. Multiple sets of auxiliary driven moving stations 9 for clamping the tire 15 are rolledly connected on the frame 1 between the active moving station 2 and the fixed station 8. The driven moving stations 9 can adaptively adjust according to the tire 15 to enhance clamping stability. A lifting platform 10 is installed on the frame 1 to raise and lower the tire 15, used to adjust the height of the tire 15 to fit the measuring components. A photoelectric switch 14 and a point laser rangefinder 13 for measuring the outer edge dimension of the tire 15 are installed on the frame 1 above the active moving station 2. The photoelectric switch 14 identifies the edge of the tire 15, and the point laser rangefinder 13 accurately measures the dimension; the two work together to achieve automatic measurement. When tire 15 at a certain workstation is fully inflated, according to the PLC signal, the point laser rangefinder 13 slides to the corresponding workstation position via the linear guide rail 12. The photoelectric switch 14 stops sliding after sensing the limit baffle 17 and begins measuring the inflated tire. Specifically, the point laser rangefinder 13 is model DW-Z1300, brand BOE, and the photoelectric switch 14 is Omron E2E-X5E1-Z. Alternatively, a point laser rangefinder 13 and photoelectric switch 14 with similar performance can also be used.

[0025] In practical use, a first cylinder 11 is fixedly connected to one side of the frame 1. The telescopic end of the first cylinder 11 is connected to the active moving station 2. The telescopic movement of the first cylinder 11 drives the active moving station 2 to move horizontally along the frame 1, flexibly adjusting the distance between it and the fixed station 8 to accommodate the tire 15. A connecting frame 7 is installed at the upper end of the active moving station 2 and multiple sets of driven moving stations 9. A first disc frame 3 for clamping the tire 15 is installed on one side of the connecting frame 7. A mandrel 6 that passes through the tire 15 is coaxially installed at the center of the first disc frame 3. The mandrel 6 is inserted into the center hole of the tire 15 to achieve radial positioning of the tire 15, and the tire 15 is initially clamped in conjunction with the first disc frame 3.

[0026] In practical use, the second disc frame 4 for clamping the tire 15 is installed on the other side of the connecting frame 7 and on the fixed station 8. The second disc frame 4, the connecting frame 7 and the fixed station 8 are provided with grooves 5 for the mandrel 6 to enter. When the active moving station 2 moves to the fixed station 8, the mandrel 6 is inserted into the groove 5, so that the first disc frame 3 and the second disc frame 4 jointly clamp both sides of the tire 15, improving the clamping stability and preventing the tire 15 from moving or rotating. Specifically, the mandrel 6 is provided with a protrusion, and the groove 5 is provided with a limit block with staggered protrusions. The groove 5 is rotatably connected to a handle 9 for locking the movement of the mandrel 6. When the handle 9 is rotated, the stop post protrudes, so that the mandrel 6 is locked in the groove 5.

[0027] In practical use, the lower ends of the active moving station 2 and the driven moving station 9 are limited and guided by the rollers 19 and the guide rails 20 on the frame 1. The rollers 19 and the guide rails 20 work together to reduce the friction of movement, ensuring that the active moving station 2 and the driven moving station 9 move smoothly along the preset trajectory and ensuring the clamping and positioning accuracy.

[0028] In practical use, the lifting platform 10 includes a second cylinder 18 connected to the frame 1. The telescopic end of the second cylinder 18 is equipped with a lifting frame 23 that supports the lifting of the tire 15. The second cylinder 18 drives the lifting frame 23 to lift vertically, thereby adjusting the height of the tire 15.

[0029] Specifically, a counterweight 21 is installed at one end of the connecting frame 7 of the active moving station 2 near the first cylinder 11. The counterweight 21 balances the weight of the active moving station 2, preventing it from tilting or jamming due to excessive weight on one side during movement, thus ensuring stability and flexibility of movement.

[0030] Specifically, the photoelectric switch 14 is mounted on the photoelectric switch mounting plate 16. The photoelectric switch mounting plate 16 and the point laser rangefinder 13 slide above the tire 15 via the linear guide rail 12 on the frame 1. The photoelectric switch mounting plate 16 and the point laser rangefinder 13 are pushed along the linear guide rail 12. When the tire 15 at a certain station is inflated, according to the PLC signal indication, the point laser rangefinder 13 slides to the corresponding station position via the linear guide rail 12. The photoelectric switch 14 stops sliding after sensing the limit baffle 17 and begins to measure the tire 15 after inflation.

[0031] The data measured by the laser rangefinder 13 is transmitted to the rear inflation PLC. The PLC calculates the outer edge dimension of the tire and displays it on the touch screen. The data is also saved and summarized with data such as tire inflation time and inflation pressure for easy traceability and analysis.

[0032] Specifically, the system sets a fixed distance L2 (i.e., the distance from the point laser rangefinder to the center of the spindle), and the measured distance is L1 (the distance from the point laser rangefinder to the outer edge of the tire). The outer edge dimension of the tire can be calculated by (L2-L1)*2.

[0033] When using this device, the tire 15 to be measured is first placed on the lifting frame 23. The second cylinder 18 is activated to drive the lifting frame 23 to lift the tire 15 to a suitable height. Then, the first cylinder 11 is activated, and the first cylinder 11 extends and retracts to drive the active moving station 2 to move along the guide rail 20 to the fixed station 8. During the process, the driven moving station 9 moves synchronously under the push of the tire 15 until the first tray 3 and the second tray 4 are respectively in contact with the two sides of the tire 15. At the same time, the mandrel 6 is inserted into the center hole of the tire 15 and the corresponding groove 5 to complete the positioning and clamping of the tire 15. When the tire 15 at a certain station is inflated, according to the PLC signal indication, the point laser rangefinder 13 slides to the corresponding station position via the linear guide rail 12. The photoelectric switch 14 senses the limit baffle 17 and stops sliding, and begins to measure the tire 15 after inflation. The data measured by the point laser rangefinder 13 is transmitted to the rear inflation PLC. The PLC calculates the tire outer edge size value. The system sets a fixed distance L2 (i.e., the distance from the point laser rangefinder to the center of the spindle) and the measured distance is L1 (the distance from the point laser rangefinder to the tire outer edge size). The tire outer edge size value can be calculated by (L2-L1)*2.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. An automatic tire outer edge dimension measuring device, characterized in that, Includes a frame (1), on which an active moving station (2) for clamping tires and a fixed station (8) are installed. Multiple sets of auxiliary clamping tires are rolledly connected to the frame (1) between the active moving station (2) and the fixed station (8). The frame (1) is equipped with a lifting platform (10) that drives the tires to rise and fall. A photoelectric switch (14) for measuring the outer edge size of a tire and a point laser rangefinder (13) are installed on the frame (1) and above the active moving station (2).

2. The automatic tire outer edge dimension measuring device according to claim 1, characterized in that: A first cylinder (11) is fixedly connected to one side of the frame (1), and the telescopic end of the first cylinder (11) is connected to the active moving station (2). A connecting frame (7) is installed on the upper end of the active moving station (2) and multiple sets of driven moving stations (22). A first disc frame (3) for clamping tires is installed on one side of the connecting frame (7). A spindle (6) that passes through the tire is coaxially installed at the center of the first disc frame (3).

3. The automatic tire outer edge dimension measuring device according to claim 2, characterized in that: The connecting frame (7) and the fixed station (8) are each equipped with a second disc frame (4) for clamping tires, and the second disc frame (4), the connecting frame (7) and the fixed station (8) have grooves (5) for the mandrel (6) to enter.

4. The automatic tire outer edge dimension measuring device according to claim 1, characterized in that: The lower ends of the active moving station (2) and the driven moving station (22) are limited and guided to move by rollers and guide rails on the frame (1).

5. The automatic tire outer edge dimension measuring device according to claim 1, characterized in that: The lifting platform (10) includes a second cylinder (18) that connects to the frame (1), and the telescopic end of the second cylinder (18) is equipped with a lifting frame (23) that supports the lifting of the tires.

6. The automatic tire outer edge dimension measuring device according to claim 1, characterized in that: A counterweight (21) is installed on the end of the connecting frame (7) of the active moving station (2) near the first cylinder (11).

7. The automatic tire outer edge dimension measuring device according to claim 1, characterized in that: The photoelectric switch (14) is mounted on the photoelectric switch mounting plate (16), and the photoelectric switch mounting plate (16) and the point laser rangefinder (13) slide above the tire via the linear guide rail (12) on the frame (1).

8. The automatic tire outer edge dimension measuring device according to claim 7, characterized in that: A limiting baffle (17) for use with a photoelectric switch (14) is installed on the frame (1) and directly above the clamping tire.

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