Tire centering mechanism

Abstract

The utility model provides tire centering positioning mechanism, including frame body, support device, bidirectional sliding device and clamping device, the lower extreme of frame body is installed on tire production line, the upper end of frame body sets up support device, and the periphery of support device is rollingly connected in the lower extreme of tire, and support device is used for carrying tire, and bidirectional sliding device is slidingly connected in the both sides of frame body, and clamping device sets up in the upper end of positioning device, and clamping device is used for centering fixed tire, is also used for changing the orientation of tire. Tire centering positioning mechanism disclosed by the utility model can accurately center and position the tire, ensure that the tire is in the preset center position, provide a reference for the subsequent process, and also can drive the tire to rotate through the driving structure, flexibly change the orientation of the tire, and facilitate the subsequent process to install the valve core of the tire at the specified position, so as to solve the problem of inaccurate tire positioning, leading to inconsistent grabbing position of the subsequent process.

Description

Technical Field

[0001] This utility model belongs to the field of tire assembly, and in particular relates to a tire centering and positioning mechanism. Background Technology

[0002] In the tire production and assembly process, precise centering and orientation adjustment of the tire are required to meet the positional requirements of subsequent inspection and assembly processes. Current technologies rely heavily on manual assistance or simple mechanical devices for tire centering, which have several shortcomings. Centering accuracy is low, and uneven stress on the load-bearing structure or poor synchronization of the clamping device often causes the tire to deviate from its preset center position, affecting the processing quality of subsequent processes. Tire orientation adjustment lacks flexibility; traditional devices struggle to achieve smooth and precise steering control and cannot adapt to the diverse tire angle requirements of different processes. Furthermore, some devices use rigid friction structures at the contact points with the tire, which can easily cause wear on the tire tread or edges, affecting product quality. Therefore, we need a centering and positioning mechanism that can achieve high-precision centering, flexible orientation adjustment, tire protection, and compatibility with automated production to solve the problem of inaccurate tire positioning leading to inconsistent gripping positions in subsequent processes. Utility Model Content

[0003] In view of this, the present invention aims to propose a tire centering and positioning mechanism to solve the problem of inaccurate tire positioning leading to inconsistent gripping positions in subsequent processes.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A tire centering and positioning mechanism includes a frame, a support device, a bidirectional sliding device, and a clamping device. The lower end of the frame is installed on the tire production line, and the upper end of the frame is provided with the support device. The support device is circumferentially connected to the lower side of the tire and is used to support the tire. The bidirectional sliding device is fixedly installed on the frame, and the moving end of the bidirectional sliding device is equipped with the clamping device, which is used to rotate the tire.

[0006] Furthermore, the support device includes four sets of support units, which are evenly distributed around the upper end of the frame, and the periphery of each set of support units is rotatably connected to the lower end of the tire.

[0007] Furthermore, the support unit includes a U-shaped frame and a roller shaft. The roller shaft is rotatably connected to the open end of the U-shaped frame, and the outer periphery of the roller shaft is rolledly connected to the lower side of the tire. The other end of the U-shaped frame is installed on the upper end of the frame body by screws.

[0008] Furthermore, the bidirectional sliding device includes two sliding plates, a gear, a rack, and a cylinder. The two sliding plates are arranged opposite each other, and each sliding plate is slidably connected to the periphery of a slide rail on both sides. Each slide rail is mounted on the frame. Each sliding plate is provided with a fixedly mounted rack. The two racks are arranged opposite each other, and a gear is provided between the two racks. The periphery of the gear meshes with one side of one rack. A cylinder is provided on the frame, and the movable end of the cylinder is connected to the middle of any sliding plate.

[0009] Furthermore, the clamping device includes an active clamping assembly, a driven clamping assembly, and a driving unit. The active clamping assembly and the driven clamping assembly are arranged in parallel to each other. The lower end of the active clamping assembly is mounted on the upper end of one of the sliding plates, and the lower end of the driven clamping assembly is mounted on the upper end of the other sliding plate. The driving unit is mounted on the sliding plate and is used to drive the active clamping assembly.

[0010] Furthermore, the active clamping assembly includes two first brackets, which are arranged parallel to each other at the upper end of the sliding plate. A first round bar rotates inside each first bracket, and the outer periphery of the first round bar is rolled to the tire tread.

[0011] Furthermore, the drive unit includes a driving gear, two driven gears, a first synchronous pulley, a second synchronous pulley, a synchronous belt, and a servo motor. The driving gear is rotatably connected to the upper middle part of the sliding plate. A driven gear is meshed with each side of the driving gear. The driven gears are rotatably connected to the upper part of the sliding plate. The servo motor is installed at the lower end of the sliding plate. The output shaft of the servo motor is fixedly connected to the driving gear. A first synchronous pulley is fixedly installed at the upper end of each driven gear. A second synchronous pulley is correspondingly sleeved at the lower part of each first round bar. The first synchronous pulley and the corresponding second synchronous pulley are sleeved with a synchronous belt to form a synchronous transmission structure.

[0012] Furthermore, the drive unit also includes two sets of tensioning structures, each set of tensioning structures being rolledly connected to the outside of a synchronous belt, and the lower end of the tensioning structure being detachably mounted on the upper end of the sliding plate.

[0013] Furthermore, the tensioning structure includes a frame and a tensioning wheel. The lower end of the frame is provided with an elongated hole, and a pin is slidably disposed in the elongated hole. The outer periphery of the pin is threadedly connected to a sliding plate. The tensioning wheel is rotatably connected to the frame and its outer periphery is rolledly connected to the outside of the synchronous belt.

[0014] Furthermore, the driven clamping assembly includes two second brackets, which are arranged parallel to each other at the upper end of a sliding plate. A second round bar rotates within each second bracket, and the outer periphery of the second round bar is rolled to the tire tread.

[0015] Compared with the prior art, the tire centering and positioning mechanism of this utility model has the following beneficial effects:

[0016] (1) The tire centering and positioning mechanism described in this utility model can accurately center and position the tire, ensuring that the tire is in a preset center position, providing a benchmark for subsequent assembly, inspection and other processes. It can also drive the tire to rotate through the drive structure, flexibly changing the tire's orientation, making it easier for subsequent processes to install the tire valve core at a designated position, thus solving the problem of inaccurate tire positioning leading to inconsistent gripping positions in subsequent processes.

[0017] (2) The tire centering and positioning mechanism described in this utility model is provided with four sets of support units, which greatly reduces frictional resistance compared to sliding contact. This not only reduces wear on the lower surface of the tire and protects the appearance and structural integrity of the tire during the production process, but also makes the tire smoother when it is driven to adjust its position or change its orientation, avoiding jamming caused by excessive friction and improving the overall operating efficiency of the mechanism.

[0018] (3) The tire centering and positioning mechanism of this utility model is provided with a bidirectional sliding device including a cylinder. The bidirectional action is driven by a single cylinder, which simplifies the transmission system, reduces the failure rate, and facilitates maintenance and repair.

[0019] (4) The tire centering and positioning mechanism described in this utility model can effectively avoid slippage caused by the slack of the timing belt by setting a tensioning wheel, ensuring the accuracy of synchronous transmission and improving the accuracy of tire orientation adjustment. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the tire centering and positioning mechanism described in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the support device described in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the support unit described in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the bidirectional sliding device described in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the clamping device described in an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the active clamping assembly described in an embodiment of the present utility model;

[0027] Figure 7 This is a schematic diagram of the drive unit described in an embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram of the tensioning structure described in an embodiment of the present utility model;

[0029] Figure 9 This is a schematic diagram of the driven clamping assembly described in an embodiment of the present utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Frame; 2-Support device; 21-Support unit; 211-U-shaped frame; 212-Roller; 3-Bidirectional sliding device; 31-Sliding plate; 32-Gear; 33-Rack; 34-Cylinder; 4-Clamping device; 41-Active clamping assembly; 42-Driven clamping assembly; 421-Second bracket; 422-Second round bar; 43-Drive unit; 411-First bracket; 412-First round bar; 431-Active gear; 432-Driven gear; 433-First synchronous pulley; 434-Second synchronous pulley; 435-Synchronous belt; 436-Servo motor; 437-Tensioning structure; 4371-Frame; 4372-Tensioning wheel. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] like Figure 1 As shown, the tire centering and positioning mechanism includes a frame 1, a support device 2, a bidirectional sliding device 3, and a clamping device 4. The lower end of the frame 1 is installed on the tire production line, and the upper end of the frame 1 is provided with the support device 2. The support device 2 is rolled around and connected to the lower side of the tire. The support device 2 is used to support the tire. The bidirectional sliding device 3 is fixedly installed on the frame 1, and the clamping device 4 is installed on the moving end of the bidirectional sliding device 3. The clamping device 4 is used for tire rotation. The support device 2 includes four sets of support units 21, which are evenly distributed around the upper end of the frame 1. The outer periphery of each set of support units 21 is rolled around and connected to the lower end of the tire. It can accurately center and position the tires conveyed to the mechanism, ensuring that the tires are in the preset center position, providing a reference for subsequent assembly, inspection and other processes. It can also drive the tires to rotate through the drive unit, flexibly changing the orientation of the tires, which is convenient for subsequent processes to install the tire valve cores in the designated positions.

[0037] like Figure 2 and Figure 3As shown, the support device 2 includes four sets of support units 21, which are evenly distributed around the upper end of the frame 1. The outer periphery of each support unit 21 is rotatably connected to the lower end of the tire. Each support unit 21 includes a U-shaped frame 211 and a roller 212. The roller 212 is rotatably connected to the open end of the U-shaped frame 211, and its outer periphery is rotatably connected to the lower side of the tire. The other end of the U-shaped frame 211 is screwed onto the upper end of the frame 1. When the tire is conveyed to the centering and positioning mechanism, the four sets of support units... Units 21 are evenly distributed circumferentially along the upper end of the frame 1. The rollers 212 of each support unit contact the lower end of the tire, jointly bearing the weight of the tire. Since the rollers 212 are rotatably connected to the open end of the U-shaped frame 211, when the tire is centered and its orientation is changed under the action of the clamping device 4, rolling friction is generated between the lower end of the tire and the rollers 212. The rollers 212 rotate synchronously with the movement of the tire, thereby achieving stable support for the tire and cooperating with the tire to complete the adjustment of position and orientation. Four sets of support units 21 are set up, which greatly reduces frictional resistance compared to sliding contact. This not only reduces wear on the lower surface of the tire, protecting the appearance and structural integrity of the tire during the production process, but also makes the tire smoother when being driven to adjust its position or change its orientation, avoiding jamming caused by excessive friction, and improving the overall operating efficiency of the mechanism.

[0038] like Figure 4 As shown, the bidirectional sliding device 3 includes two sliding plates 31, a gear 32, a rack 33, and a cylinder 34. The two sliding plates 31 are arranged opposite each other, and each sliding plate 31 is slidably connected to the periphery of a slide rail 11 on both sides. Each slide rail 11 is mounted on the frame 1. Each sliding plate 31 is correspondingly and fixedly mounted with a rack 33. The two racks 33 are arranged opposite each other, and a gear 32 is arranged between the two racks 33. The periphery of the gear 32 meshes with one side of one rack 33. A cylinder 34 is arranged on the frame 1. The movable end of the cylinder 34 is connected to the middle of any sliding plate 31. The cylinder 34 is prior art, and its model is MDBT. When the cylinder extends or retracts, it drives the sliding plate to slide along the slide rail 11. Since the two racks 33 are axially symmetrically connected to the two sliding plates 31 and mesh with the gear 32 in the middle, the movement of the sliding plate 31 will drive the gear 33 to rotate through the rack 32, thereby driving the rack and sliding plate on the other side to slide synchronously in opposite directions; finally, the two sliding plates move closer or further away in a bidirectional symmetrical manner, thereby driving the clamping device 4 at the upper end to move synchronously, completing the clamping or releasing of the tire. A bidirectional sliding device 3 including a cylinder 34 is set up. The bidirectional action is driven by a single cylinder, which simplifies the transmission system, reduces the failure rate, and facilitates maintenance and repair.

[0039] like Figure 5As shown, the clamping device 4 includes an active clamping assembly 41, a driven clamping assembly 42, and a driving unit 43. The active clamping assembly 41 and the driven clamping assembly 42 are arranged parallel to each other. The lower end of the active clamping assembly 41 is mounted on the upper end of one of the sliding plates 31, and the lower end of the driven clamping assembly 42 is mounted on the upper end of the other sliding plate 31. The driving unit 43 is mounted on the sliding plate 31 and is used to drive the active clamping assembly 41. Figure 6 As shown, the active clamping assembly 41 includes two first brackets 411, which are arranged parallel to each other at the upper end of the sliding plate 31. A first round rod 412 rotates inside each first bracket 411, and the outer periphery of the first round rod 412 is rolled to the tread of the tire.

[0040] like Figure 7 As shown, the drive unit 43 includes a drive gear 431, two driven gears 432, a first synchronous pulley 433, a second synchronous pulley 434, a synchronous belt 435, and a servo motor 436. The drive gear 431 is rotatably connected to the upper middle part of the sliding plate 31. A driven gear 432 is meshed with each side of the drive gear 431. The driven gears 432 are rotatably connected to the upper end of the sliding plate 31. The servo motor 436 is installed at the lower end of the sliding plate 31. The output shaft of the servo motor 436 is fixedly connected to the drive gear 431. A first synchronous pulley 433 is fixedly installed at the upper end of each driven gear 432. A second synchronous pulley 434 is correspondingly sleeved on the lower part of each first round bar 412. The first synchronous pulley 433 and the corresponding second synchronous pulley 434 are sleeved with a synchronous belt 435 to form a synchronous transmission structure. The servo motor 436 is existing technology. The model of the servo motor 436 is CM3C63M-30A. The controller controls the servo motor 436 to start. The output shaft drives the drive gear 431, which is fixedly connected to it, to rotate. The drive gear 431 meshes with two driven gears 432 on both sides, thereby driving the driven gears 432 to rotate synchronously. The first synchronous pulley 433 at the upper end of each driven gear 432 rotates with it and drives the second synchronous pulley 434 at the lower part of the corresponding first round bar 412 to rotate through the synchronous belt 435 sleeved on the outside, thus realizing the synchronous rotation of the two first round bars 412.

[0041] like Figure 7 and Figure 8 As shown, the drive unit 43 also includes two sets of tensioning structures 437. The periphery of each tensioning structure 437 is tactilely connected to the outside of a synchronous belt 435. The lower end of the tensioning structure 437 is detachably mounted on the upper end of the sliding plate 31. The tensioning structure 437 includes a frame 4371 and a tensioning wheel 4372. The lower end of the frame 4371 has an elongated hole, in which a pin is slidably disposed. The periphery of the pin is threadedly connected to the sliding plate 31. The tensioning wheel 4372 is rotatably connected to the frame 4371, and its periphery is tactilely connected to the outside of the synchronous belt 435. Figure 9As shown, the driven clamping assembly 42 includes two second brackets 421 and two second round bars 422. The two second brackets 421 are arranged parallel to each other on the upper end of a sliding plate 31. Each second bracket 421 rotates a second round bar 422, and the outer periphery of the second round bar 422 is rolled to the tire tread. By applying continuous pressure to the timing belt 435 through the adjustable tension wheel 4372, slippage caused by the loosening of the timing belt 435 can be effectively avoided, ensuring the synchronous transmission accuracy of the drive unit 43, thereby ensuring that the two first round bars 412 of the active clamping assembly 41 rotate synchronously and improving the accuracy of tire orientation adjustment.

[0042] The working process of the tire alignment mechanism:

[0043] When the tire is conveyed to the mechanism, the support device 2 at the upper end of the frame 1 carries the tire through four sets of circumferentially distributed support units 21. The rollers 212 of the support units 21 roll in contact with the lower end of the tire to achieve stable support. The cylinder 34 of the bidirectional sliding device 3 is activated, pushing one side sliding plate 31 to slide along the slide rail 11 of the frame 1. Through the meshing transmission of the rack 33 and the gear 32, the other side sliding plate 31 is driven to slide synchronously in the opposite direction, so that the clamping device 4 at the upper end of the sliding plate 31 moves closer to the tire. The active clamping component and the driven clamping component 42 of the clamping device 4 move with the sliding plate 31 and gradually come into contact with the tire tread. The system clamps the tire, completing the centering and fixing process. After clamping, the servo motor 436 drives the active gear 431 to rotate, which in turn drives the first synchronous pulley 433 through the meshing driven gears 432 on both sides. This is transmitted via the synchronous belt 435 and the second synchronous pulley 434, causing the first round bar 412 of the active clamping assembly 41 to rotate. Under the action of friction, the tire rotates. The tension wheel 4372 of the tensioning structure 437 always keeps the synchronous belt 435 taut to ensure stable transmission. After completing the positioning and orientation adjustment, the cylinder 34 reverses its action, causing the sliding plate 31 to separate, and the clamping device 4 releases the tire so that other mechanisms can grab it.

[0044] The control method in this embodiment is controlled by a controller. The controller circuit can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this document is mainly used to protect mechanical devices, and the control method and circuit connection will not be explained in detail here.

[0045] 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 tire centering and positioning mechanism, characterized in that: The device includes a frame (1), a support device (2), a bidirectional sliding device (3), and a clamping device (4). The lower end of the frame (1) is installed on the tire production line, and the upper end of the frame (1) is provided with a support device (2). The support device (2) is rolled around the lower side of the tire and is used to support the tire. The bidirectional sliding device (3) is fixedly installed on the frame (1), and the moving end of the bidirectional sliding device (3) is equipped with a clamping device (4). The clamping device (4) is used to rotate the tire.

2. The tire centering and positioning mechanism according to claim 1, characterized in that: The support device (2) includes four sets of support units (21), which are evenly distributed around the upper end of the frame (1). The periphery of each set of support units (21) is rolled to the lower end of the tire.

3. The tire centering and positioning mechanism according to claim 2, characterized in that: The support unit (21) includes a U-shaped frame (211) and a roller (212). The roller (212) is rotatably connected to the open end of the U-shaped frame (211). The outer periphery of the roller (212) is rolledly connected to the lower side of the tire. The other end of the U-shaped frame (211) is installed on the upper end of the frame (1) by screws.

4. The tire centering and positioning mechanism according to claim 1, characterized in that: The bidirectional sliding device (3) includes two sliding plates (31), a gear (32), a rack (33) and a cylinder (34). The two sliding plates (31) are arranged opposite each other. The two sides of each sliding plate (31) are slidably connected to the periphery of a slide rail (11), and each slide rail (11) is installed on the frame (1). Each sliding plate (31) is provided with a fixed rack (33). The two racks (33) are arranged opposite each other. A gear (32) is provided between the two racks (33), and the periphery of the gear (32) is meshed with one side of a rack (33). A cylinder (34) is provided on the frame (1), and the movable end of the cylinder (34) is connected to the middle of any sliding plate (31).

5. The tire centering and positioning mechanism according to claim 4, characterized in that: The clamping device (4) includes an active clamping assembly (41), a driven clamping assembly (42), and a drive unit (43). The active clamping assembly (41) and the driven clamping assembly (42) are arranged parallel to each other. The lower end of the active clamping assembly (41) is mounted on the upper end of one of the sliding plates (31), and the lower end of the driven clamping assembly (42) is mounted on the upper end of the other sliding plate (31). The drive unit (43) is mounted on the sliding plate (31) and is used to drive the active clamping assembly (41).

6. The tire centering and positioning mechanism according to claim 5, characterized in that: The active clamping assembly (41) includes two first brackets (411), which are arranged parallel to each other at the upper end of the sliding plate (31). A first round rod (412) rotates inside each first bracket (411), and the outer periphery of the first round rod (412) is rolled to the tread of the tire.

7. The tire centering and positioning mechanism according to claim 6, characterized in that: The drive unit (43) includes a drive gear (431), two driven gears (432), a first synchronous pulley (433), a second synchronous pulley (434), a synchronous belt (435), and a servo motor (436). The drive gear (431) is rotatably connected to the upper middle part of the sliding plate (31). A driven gear (432) is meshed with each side of the drive gear (431). The driven gears (432) are rotatably connected to the upper end of the sliding plate (31). The servo motor (436) is installed at the lower end of the sliding plate (31). The output shaft of the servo motor (436) is fixedly connected to the drive gear (431). A first synchronous pulley (433) is fixedly installed at the upper end of each driven gear (432). A second synchronous pulley (434) is correspondingly sleeved on the lower part of each first round bar (412). The first synchronous pulley (433) and the corresponding second synchronous pulley (434) are sleeved with a synchronous belt (435) to form a synchronous transmission structure.

8. The tire centering and positioning mechanism according to claim 7, characterized in that: The drive unit (43) also includes two sets of tensioning structures (437), the periphery of each tensioning structure (437) is rolledly connected to the outside of a synchronous belt (435), and the lower end of the tensioning structure (437) is detachably mounted on the upper end of the sliding plate (31).

9. The tire centering and positioning mechanism according to claim 8, characterized in that: The tensioning structure (437) includes a frame (4371) and a tensioning wheel (4372). The lower end of the frame (4371) is provided with an elongated hole, and a pin is slidably disposed in the elongated hole. The outer periphery of the pin is threadedly connected to the sliding plate (31). The tensioning wheel (4372) is rotatably connected to the frame (4371), and the outer periphery of the tensioning wheel (4372) is rolledly connected to the outer side of the timing belt (435).

10. The tire centering and positioning mechanism according to claim 5, characterized in that: The driven clamping assembly (42) includes two second brackets (421), which are arranged parallel to each other at the upper end of a sliding plate (31). A second round bar (422) rotates inside each second bracket (421), and the outer periphery of the second round bar (422) is rolled to the tread of the tire.

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