Tire bead positioning jig

Abstract

The utility model relates to a kind of tire steel ring positioning fixture, including workbench, positioning structure and replacement component, first cylinder is driven to move cylinder seat, and then the height of side positioning piece is adjusted according to the size of tire steel ring, the height of center positioning column is adjusted by the second cylinder inside adjusting seat, center positioning column enters the inside of the hub central hole of tire steel ring, carries out center positioning fixed, side positioning piece makes cambered surface panel close to steel ring inner wall, air bag expansion and steel ring inner wall close contact, to realize the firm clamping of steel ring, by the flexible contact of air bag, the damage possibly caused to steel ring surface by rigid fixture is effectively avoided, different size steel ring positioning demand can also be adapted simultaneously, by replacement structure, the quick replacement of center positioning column is completed, it is convenient to adjust according to the size difference of the hub central hole of tire steel ring, and the scope of application is wide.

Description

Technical Field

[0001] This utility model relates to the field of tire rim processing technology, and in particular to a tire rim positioning fixture. Background Technology

[0002] In the automotive industry, a tire rim is more technically known as a wheel or hub. It is a rotating load-bearing component that mounts the tire and connects to the vehicle's axle through a bolt hole in its center. It supports the entire weight of the vehicle and transmits driving and braking torques.

[0003] A search revealed a tire rim with publication number CN201023401Y. The tire rim includes a rim body (4), spokes (1), and valve holes (3). The valve holes (3) are openings that are completely cut along the edge of the rim body (4) axially. No cuts are provided on the outer circumference of the spokes (1). This invention facilitates the installation and removal of the tire rim from the outer tire, and the rim has sufficient strength. Furthermore, during tire installation and removal, the inner tube valve can slide in and out of the valve hole along with the outer tire, protecting the inner tube valve from damage. This invention can be widely used as a tire rim for forklifts and various vehicles.

[0004] The device in the disclosed patent is inconvenient to position during production and processing. In the machining and precision inspection of tire steel rims, radial expansion clamps are currently the most common positioning solution. By driving multiple claws to expand radially, they directly press against the inner wall of the rim, thereby fixing the steel rim. However, the above method has inherent defects: First, its centering accuracy depends entirely on the manufacturing accuracy of the inner wall of the rim itself, which is prone to deformation during casting or handling, resulting in poor concentricity after positioning, which seriously affects the accuracy of processes such as bolt hole processing and dynamic balancing. Second, a set of radial expansion mechanisms is usually only applicable to a narrow range of rim diameters. When it is necessary to adapt to steel rings of different specifications, the machine must be stopped and the entire set of chucks or expansion mechanisms must be replaced, which is a cumbersome process and seriously restricts production flexibility. Utility Model Content

[0005] In response to the technical problems in existing patents regarding poor concentricity, poor versatility, and inconvenience in positioning tire rims with different center holes and rim sizes, this utility model provides a tire rim positioning fixture.

[0006] The technical solution adopted by this utility model is: a tire rim positioning clamp, comprising: Workbench; A positioning structure is mounted on the top of the worktable, the positioning structure including a central positioning component mounted on the top of the worktable and a side positioning component mounted on the outside of the central positioning component; Replacement component, the replacement component is installed on the center positioning component, the replacement component is used to replace the center positioning component according to the positioning requirements of different steel rings; The replacement assembly includes an adjustment seat mounted on the central positioning member and a replacement structure installed inside the adjustment seat.

[0007] Furthermore, the center positioning component includes a first cylinder bolted to the top of the worktable, a cylinder seat fixedly mounted on the output shaft of the first cylinder, and a center positioning post mounted on the top of the cylinder seat.

[0008] Furthermore, a second cylinder is installed inside the cylinder seat, and the adjusting seat is fixedly installed on the output shaft of the second cylinder. An adjusting groove is opened on the top of the adjusting seat. The replacement structure includes a bidirectional threaded rod with both ends rotatably installed between the inner sidewalls of the adjusting groove, a first threaded ring and a second threaded ring threadedly engaged on the bidirectional threaded rod, two threaded blocks respectively fixedly welded to the top of the first threaded ring and the second threaded ring, and an adjusting head fixedly installed at one end of the rotating shaft of the bidirectional threaded rod through a transmission column.

[0009] Furthermore, the replacement structure also includes an assembly plate fixedly welded to the top of the threaded block, an assembly block fixedly welded to one side of the assembly plate, and an assembly seat fixedly welded to the bottom of the central positioning column. The assembly seat has an assembly groove, and the assembly block cooperates with the assembly groove.

[0010] Furthermore, the side positioning component includes a third cylinder bolted to the outer wall of the cylinder seat, an arc-shaped panel fixedly mounted on the output shaft of the third cylinder, and an airbag mounted on the outer side of the arc-shaped panel.

[0011] Furthermore, a pump body is bolted to the top of the arc panel, and the pump body is connected to the top of the airbag via a pipe.

[0012] The beneficial effects of this utility model are: The first cylinder moves the cylinder seat, thereby adjusting the height of the side positioning component according to the size of the tire rim. The second cylinder inside the adjusting seat adjusts the height of the center positioning post. The center positioning post enters the center hole of the tire rim hub for center positioning and fixation. The side positioning component brings the curved panel close to the inner wall of the rim. The air bladder inflates and makes close contact with the inner wall of the rim, thus achieving a stable clamping of the rim. The flexible contact of the air bladder effectively avoids damage to the rim surface that may be caused by rigid clamps. It can also adapt to the positioning needs of rims of different sizes. By changing the structure, the center positioning post can be quickly replaced, making it easy to adjust according to the size of the center hole of the tire rim hub, and it has a wide range of applications. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the positioning structure and replacement components in this utility model; Figure 3 This is a three-dimensional structural diagram of the replaceable component in this utility model.

[0014] The diagram is marked as follows: 1. Workbench; 2. Positioning structure; 201. Center positioning component; 202. Side positioning component; 3. Replace components; 301. Adjusting seat; 302. Replace structure; 3021. Double-sided threaded rod; 3022. First threaded ring; 3023. Second threaded ring; 3024. Threaded block; 3025. Adjusting head; 3026. Assembly plate; 3027. Assembly block; 3028. Assembly seat; 4. First cylinder; 5. Cylinder seat; 6. Center positioning post; 7. Assembly slot; 8. Third cylinder; 9. Arc panel; 10. Airbag; 11. Pump body. Detailed Implementation

[0015] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", 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 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. Therefore, they should not be construed as limitations on this utility model.

[0016] 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 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.

[0017] The following is in conjunction with the appendix Figure 1-3 The present invention will be further described below.

[0018] To address the problems existing in the background art, this application proposes the following technical solution: A tire rim positioning fixture includes: a worktable 1, a positioning structure 2, and a replacement component 3; The positioning structure 2 is mounted on the top of the worktable 1. The positioning structure 2 includes a central positioning component 201 mounted on the top of the worktable 1 and a side positioning component 202 mounted on the outside of the central positioning component 201. The center positioning component 201 includes a first cylinder 4 bolted to the top of the worktable 1, a cylinder seat 5 fixedly mounted on the output shaft of the first cylinder 4, and a center positioning post 6 mounted on the top of the cylinder seat 5.

[0019] like Figure 1-3 As shown, the replacement component 3 is installed on the center positioning component 201. The replacement component 3 is used to replace the center positioning component 201 according to the positioning requirements of different steel rings.

[0020] The replacement component 3 includes an adjustment seat 301 mounted on the central positioning component 201 and a replacement structure 302 mounted inside the adjustment seat 301. A second cylinder is installed inside the cylinder seat 5. The adjustment seat 301 is fixedly mounted on the output shaft of the second cylinder. An adjustment groove is provided on the top of the adjustment seat 301. The replacement structure 302 includes a bidirectional threaded rod 3021 with both ends rotatably mounted between the inner sidewalls of the adjustment groove, a first threaded ring 3022 and a second threaded ring 3023 threadedly engaged on the bidirectional threaded rod 3021, two threaded blocks 3024 respectively fixedly welded to the top of the first threaded ring 3022 and the second threaded ring 3023, and an adjustment head 3025 fixedly mounted on one end of the rotating shaft of the bidirectional threaded rod 3021 via a transmission column.

[0021] Furthermore, the replacement structure 302 also includes an assembly plate 3026 fixedly welded to the top of the threaded block 3024, an assembly block 3027 fixedly welded to one side of the assembly plate 3026, and an assembly seat 3028 fixedly welded to the bottom of the central positioning column 6. The assembly seat 3028 is provided with an assembly groove 7, and the assembly block 3027 cooperates with the assembly groove 7.

[0022] Furthermore, the side positioning component 202 includes a third cylinder 8 bolted to the outer wall of the cylinder seat 5, an arc panel 9 fixedly mounted on the output shaft of the third cylinder 8, and an airbag 10 mounted on the outer side of the arc panel 9.

[0023] Furthermore, a pump body 11 is bolted to the top of the arc panel 9, and the pump body 11 is connected to the top of the airbag 10 via a pipe.

[0024] Working principle: When in use, firstly start the first cylinder 4, the first cylinder 4 drives the cylinder seat 5 to move, and then adjust the height of the side positioning part 202 according to the size of the tire steel rim. The height of the center positioning post 6 is adjusted by the second cylinder inside the adjusting seat 301. The center positioning post 6 enters the center hole of the tire steel rim hub for center positioning and fixation. The third cylinder 8 is activated, pushing the arc panel 9 outward to fit against the inner wall of the steel ring. The pump body 11 is turned on, and air is injected into the airbag 10 through the pipe, causing the airbag 10 to expand and make close contact with the inner wall of the steel ring, thereby achieving a stable clamping of the steel ring. Through the flexible contact of the airbag 10, the damage that the rigid clamp may cause to the surface of the steel ring is effectively avoided, and it can also adapt to the positioning requirements of steel rings of different sizes. The adjusting head 3025 drives the bidirectional threaded rod 3021 to rotate, causing the first threaded ring 3022 and the second threaded ring 3023 to move in opposite directions, thereby controlling the relative position of the assembly block 3027 and the assembly groove 7, completing the quick replacement of the center positioning column 6, which is convenient to adjust according to the different sizes of the wheel hub center hole of the tire steel rim, and has a wide range of applications. The entire positioning process achieves simultaneous center positioning and side clamping through the coordinated work of multiple sets of cylinders, greatly improving positioning efficiency and accuracy. The design of replacement component 3 significantly enhances the equipment's versatility, enabling it to quickly adapt to tire rims of different specifications and meet diverse production needs.

[0025] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0026] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A tire rim positioning clamp, characterized in that, include: Workbench (1); Positioning structure (2), the positioning structure (2) is mounted on the top of the workbench (1), the positioning structure (2) includes a central positioning component (201) mounted on the top of the workbench (1) and a side positioning component (202) mounted on the outside of the central positioning component (201). Replacement component (3), the replacement component (3) is installed on the center positioning component (201), the replacement component (3) is used to replace the center positioning component (201) according to the positioning requirements of different steel rings. The replacement component (3) includes an adjustment seat (301) mounted on the central positioning member (201) and a replacement structure (302) mounted inside the adjustment seat (301).

2. The tire rim positioning clamp according to claim 1, characterized in that, The center positioning component (201) includes a first cylinder (4) bolted to the top of the workbench (1), a cylinder seat (5) fixedly mounted on the output shaft of the first cylinder (4), and a center positioning column (6) mounted on the top of the cylinder seat (5).

3. A tire rim positioning clamp according to claim 2, characterized in that, The cylinder seat (5) is equipped with a second cylinder. The adjusting seat (301) is fixedly installed on the output shaft of the second cylinder. The adjusting seat (301) has an adjusting groove on its top. The replacement structure (302) includes a bidirectional threaded rod (3021) with both ends rotatably installed between the inner sidewalls of the adjusting groove, a first threaded ring (3022) and a second threaded ring (3023) threadedly engaged on the bidirectional threaded rod (3021), two threaded blocks (3024) respectively fixedly welded to the top of the first threaded ring (3022) and the second threaded ring (3023), and an adjusting head (3025) fixedly installed at one end of the rotating shaft of the bidirectional threaded rod (3021) through a transmission column.

4. A tire rim positioning clamp according to claim 3, characterized in that, The replacement structure (302) also includes an assembly plate (3026) fixedly welded to the top of the threaded block (3024), an assembly block (3027) fixedly welded to one side of the assembly plate (3026), and an assembly seat (3028) fixedly welded to the bottom of the central positioning column (6). An assembly groove (7) is provided on the assembly seat (3028), and the assembly block (3027) cooperates with the assembly groove (7).

5. A tire rim positioning clamp according to claim 2, characterized in that, The side positioning component (202) includes a third cylinder (8) bolted to the outer wall of the cylinder seat (5), an arc panel (9) fixedly mounted on the output shaft of the third cylinder (8), and an airbag (10) mounted on the outer side of the arc panel (9).

6. A tire rim positioning clamp according to claim 5, characterized in that, The top of the arc panel (9) is bolted to a pump body (11), which is connected to the top of the airbag (10) via a pipe.

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