Expansion forming device for rim
By designing the expansion forming device of the rim, and using the push block and mechanical synchronization mechanism in the centering mechanism, the problem of inaccurate centering of the rim during the expansion process is solved, and higher centering accuracy and expansion are achieved. Dimensional accuracy.
Patent Information
- Application Number
- CN202420641080.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-30
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-03-30
AI Technical Summary
In the prior art, it is difficult to achieve complete synchronous centering during the expansion of rims, resulting in the expansion of the size of the expansion of rims being prone to deviations.
A rotten molding device is designed, including racks, workbenches, rigid heads, lifting agencies, and enthusiastic institutions. The attentive agency realizes the sliding block and mechanical synchronization agencies on the workbench to realize the synchronous movement of the push block, so as to be accurate.
Through this device, the synchronous movement of multiple push blocks can be achieved, the accuracy of the rotation is attentive, and ensuring the accuracy of the expansion of the size.
Smart Images
Figure CN222385793U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rim production, in particular to an expansion and forming device for a rim. Background Art
[0002] The wheel is a rigid wheel that fixes the inner edge of the tire, supports the tire, and bears the load together with the tire. The tire, rim, and spokes combined together are collectively called wheels. The wheel assembly consists of two major components: the wheel and the tire. When the wheel is produced, the rim will be expanded to improve the situation of the ring-shaped embossing on the rim. Usually, before expanding the rim with an expansion head, the rim needs to be centered and placed so that the rim and the expansion head are aligned.
[0003] In the prior art, in traditional manufacturing enterprises with a low degree of automation, mechanical structures are usually used for centering. For example, multiple cylinders distributed in a circular array are pushed toward the center at the same time to move the rim to the center position. However, in actual operation, it is difficult to achieve complete synchronization for multiple cylinders, so the expanded size is prone to deviations. Utility Model Content
[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a rim expansion and forming device.
[0005] In order to achieve the above technical effects, the utility model adopts the following scheme:
[0006] A rim expansion and forming device comprises a frame, a workbench, an expansion head, a lifting mechanism and a centering mechanism;
[0007] The workbench is fixedly mounted horizontally on the frame;
[0008] The expansion head is installed on the frame through a lifting mechanism to move vertically, and the expansion head is located above the workbench;
[0009] The centering mechanism is installed on the workbench, and includes at least three push blocks sliding on the upper end of the workbench, the at least three push blocks are distributed in a circular array around the horizontal projection of the expansion head on the workbench, and the at least three push blocks are driven to slide by a mechanical synchronization mechanism, and the sliding direction of the push blocks is along the radius direction of the circular area surrounded by the at least three push blocks.
[0010] A preferred technical solution, the mechanical synchronization mechanism includes a turntable, a rotating shaft, a sliding member, a connecting rod and a cylinder, the turntable is rotatably installed on the lower end of the workbench through the rotating shaft, the rotating shaft and the expansion head are located on the same vertical line, and a number of sliding members equal to the push blocks are arranged around the turntable, the sliding members are connected to the push blocks one by one, the sliding members are slidably installed on the lower end of the workbench through slide rails, and a number of connecting columns equal to the number of sliding members are distributed in an array around the circumference of the rotating shaft on the turntable, the sliding member is hinged to the corresponding connecting column through an obliquely arranged connecting rod, and one of the sliding members is pushed to slide by a cylinder installed at the lower end of the workbench.
[0011] A preferred technical solution is that a push rod extends outward from the outer end of the push block, and the length direction of the push rod is parallel to the sliding direction of the push block. The upper end of the workbench has a guide sleeve matching the push rod, and the outer end of the push rod passes through the guide sleeve and extends out of the edge of the workbench. The outer end of the sliding member corresponding to the push block extends out of the edge of the workbench and is fixedly connected to the outer end of the corresponding push rod above through a vertically arranged driving rod.
[0012] According to a preferred technical solution, the cylinder is installed at the lower end of the workbench, and the telescopic rod of the cylinder extends inwardly, a connecting frame extending inwardly is fixedly connected to the sliding member connected to the cylinder, and the telescopic rod of the cylinder is fixedly connected to the connecting frame.
[0013] According to a preferred technical solution, the lifting mechanism comprises a hydraulic cylinder vertically mounted on a frame, and a telescopic rod of the hydraulic cylinder is fixedly connected downward to the expansion head.
[0014] Compared with the prior art, the beneficial effects are:
[0015] The utility model has a simple structure and is easy to use. At least three push blocks in a circular array are slidably arranged on a workbench, and the multiple push blocks are driven to move synchronously by the same mechanical drive synchronization mechanism, thereby pushing the rim to move toward the center for centering. The utility model can easily realize the synchronous movement of multiple push blocks and improve the accuracy of centering. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a partial bottom view schematic diagram of the mechanical synchronization mechanism of the utility model.
[0018] Figure numerals: 1. workbench; 2. expansion head; 3. hydraulic cylinder; 4. push block; 5. push rod; 6. guide sleeve; 7. driving rod; 8. sliding member; 9. slide rail; 10. connecting rod; 11. turntable; 12. connecting column; 13. cylinder; 14. connecting frame. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0020] A rim expansion and forming device comprises a frame, a workbench 1, an expansion head 2, a lifting mechanism and a centering mechanism;
[0021] The workbench 1 is fixedly mounted horizontally on the frame;
[0022] The expansion head 2 is installed on the frame through a lifting mechanism to move vertically, and the expansion head 2 is located above the workbench 1. The expansion head 2 adopts the existing technology and is used to expand the rim;
[0023] The centering mechanism is installed on the workbench 1, and includes at least three push blocks 4 sliding on the upper end of the workbench 1. The at least three push blocks 4 are distributed in a circular array around the horizontal projection of the expansion head 2 on the workbench 1. The at least three push blocks 4 are driven to slide by a mechanical synchronization mechanism, and the sliding direction of the push blocks 4 is along the radius direction of the circular area surrounded by the at least three push blocks 4.
[0024] At least three push blocks 4 in a circular array are slidably arranged on the workbench 1, and the multiple push blocks 4 are driven to move synchronously by the same mechanical drive synchronization mechanism, thereby pushing the rim to move toward the center for centering. The utility model can easily realize the synchronous movement of multiple push blocks 4 and improve the accuracy of centering.
[0025] A preferred technical solution, the mechanical synchronization mechanism includes a turntable 11, a rotating shaft, a sliding member 8, a connecting rod 10 and a cylinder 13, the turntable 11 is rotatably installed on the lower end of the workbench 1 through the rotating shaft, the rotating shaft and the expansion head 2 are located on the same vertical line, and the turntable 11 is surrounded by sliding members 8 with the same number as the push block 4, the sliding members 8 are connected to the push block 4 one by one, and the sliding members 8 are slidably installed on the lower end of the workbench 1 through the slide rail 9, and the turntable 11 is provided with a connecting column 12 with the same number as the sliding member 8 distributed in a circular array around the rotating shaft, the sliding member 8 is hinged with the corresponding connecting column 12 through an inclined connecting rod 10, and one of the sliding members 8 is pushed to slide by the cylinder 13 installed at the lower end of the workbench 1.
[0026] The cylinder 13 pushes a sliding member 8 to move, and the sliding member 8 drives the turntable 11 to rotate through the corresponding connecting rod 10, thereby driving the remaining sliding members 8 to move synchronously through the remaining connecting rods 10. Furthermore, since the sliding member 8 is connected to the push block 4, the synchronous sliding of multiple push blocks 4 is achieved. Through this solution, it is easy to achieve synchronous sliding of multiple push blocks 4 by driving only one cylinder 13.
[0027] According to a preferred technical solution, a push rod 5 is extended outward from the outer end of the push block 4, and the length direction of the push rod 5 is parallel to the sliding direction of the push block 4. The upper end of the workbench 1 has a guide sleeve 6 matching the push rod 5, and the outer end of the push rod 5 passes through the guide sleeve 6 and extends out of the edge of the workbench 1. The outer end of the sliding member 8 corresponding to the push block 4 extends out of the edge of the workbench 1 and is fixedly connected to the outer end of the corresponding push rod 5 above through a vertically arranged driving rod 7.
[0028] The outer ends of the push rod 5 and the sliding member 8 are both extended out of the edge of the workbench 1 and are fixedly connected via the driving rod 7. Through this structure, the workbench 1 can have a thicker thickness and thus withstand greater pressure.
[0029] According to a preferred technical solution, the cylinder 13 is installed at the lower end of the workbench 1, and the telescopic rod of the cylinder 13 extends inwardly, and a connecting frame 14 extending inwardly is fixedly connected to the sliding member 8 connected to the cylinder 13, and the telescopic rod of the cylinder 13 is fixedly connected to the connecting frame 14.
[0030] Through this solution, the cylinder 13 is arranged at the lower end of the workbench 1, which reduces the footprint of the entire device and when the telescopic rod of the cylinder 13 is pushed out, the sliding member 8 moves inward to push the rim. The telescopic rod of the cylinder 13 has greater force when extended than when retracted, so it can have greater force to push the rim.
[0031] According to a preferred technical solution, the lifting mechanism comprises a hydraulic cylinder 3 vertically mounted on a frame, and a telescopic rod of the hydraulic cylinder 3 is fixedly connected to the expansion head 2 downward.
[0032] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0034] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.
Claims
1. A rim expansion forming device, characterized in that: It comprises a frame, a workbench (1), an expansion head (2), a lifting mechanism and a centering mechanism; The workbench (1) is fixedly mounted horizontally on the frame; The expansion head (2) is installed on the frame through a lifting mechanism to move vertically, and the expansion head (2) is located above the workbench (1); The centering mechanism is installed on the workbench (1), and comprises at least three push blocks (4) sliding on the upper end of the workbench (1), the at least three push blocks (4) being distributed in a circular array around the horizontal projection of the expansion head (2) on the workbench (1), the at least three push blocks (4) being driven to slide by a mechanical synchronization mechanism, and the sliding direction of the push blocks (4) being along the radius direction of the circular area surrounded by the at least three push blocks (4).
2. A rim expansion forming device as claimed in claim 1, characterized in that: The mechanical synchronization mechanism comprises a turntable (11), a rotating shaft, a sliding member (8), a connecting rod (10) and a cylinder (13). The turntable (11) is rotatably mounted on the lower end of the workbench (1) via the rotating shaft. The rotating shaft and the expansion head (2) are located on the same vertical line. The turntable (11) is provided with sliding members (8) whose number is the same as that of the push blocks (4). The sliding members (8) are connected to the push blocks (4) in a one-to-one correspondence. The sliding members (8) are slidably mounted on the lower end of the workbench (1) via slide rails (9). The turntable (11) is provided with connecting columns (12) whose number is the same as that of the sliding members (8) in a circular array around the rotating shaft. The sliding members (8) are hinged to the corresponding connecting columns (12) via an inclined connecting rod (10). One of the sliding members (8) is pushed to slide by the cylinder (13) installed at the lower end of the workbench (1).
3. A rim expansion and forming device as claimed in claim 2, characterized in that: A push rod (5) is extended outward from the outer end of the push block (4), and the length direction of the push rod (5) is parallel to the sliding direction of the push block (4). The upper end of the workbench (1) has a guide sleeve (6) matching the push rod (5), and the outer end of the push rod (5) passes through the guide sleeve (6) and extends out of the edge of the workbench (1). The outer end of the sliding member (8) corresponding to the push block (4) extends out of the edge of the workbench (1) and is fixedly connected to the outer end of the corresponding push rod (5) above through a vertically arranged driving rod (7).
4. A rim expansion and forming device as claimed in claim 2, characterized in that: The cylinder (13) is installed at the lower end of the workbench (1), and the telescopic rod of the cylinder (13) extends inwardly, and a connecting frame (14) extending inwardly is fixedly connected to a sliding member (8) connected to the cylinder (13), and the telescopic rod of the cylinder (13) is fixedly connected to the connecting frame (14).
5. A rim expansion forming device as claimed in claim 1, characterized in that: The lifting mechanism comprises a hydraulic cylinder (3) vertically mounted on a frame, and a telescopic rod of the hydraulic cylinder (3) is fixedly connected downwardly to the expansion head (2).