Automatic switching device for disassembling and assembling tool heads of full-automatic tire disassembling machine

Abstract

The utility model discloses an automatic switching device for a dismounting tool head of a full-automatic tire dismounting machine, which relates to the technical field of automobile maintenance and comprises a mounting block, a push-pull air cylinder is mounted behind the mounting block, a square bar is mounted at the telescopic end of the push-pull air cylinder, a push air cylinder and a linear guide rail are mounted on the mounting block, and the linear guide rail is mounted on the push air cylinder. A pair of linear guide rail sliding blocks is installed on the linear guide rail, a sliding rack is connected to the lower portions of the pair of linear guide rail sliding blocks jointly, the sliding rack is connected with the pushing air cylinder, ratchet wheel rotating gears are meshed with the lower portions of the linear guide rail sliding blocks, and ratchet wheels are installed in front of the ratchet wheel rotating gears. The ratchet wheel rotating gear and the ratchet wheel are installed on the installation block through a tool magazine fixing shaft, a tool magazine assembly is further installed on the tool magazine fixing shaft, and the square bar penetrates through the installation block and the tool magazine assembly.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair and maintenance technology, specifically to an automatic switching device for the tool head of a fully automatic tire changer. Background Technology

[0002] With the rapid development of the global automotive industry and the increasing number of cars on the road, car maintenance and repair are receiving more and more attention. In the tire maintenance and repair industry, tire changers are the mainstream, most labor-saving, and fastest tire removal and installation equipment. However, some run-flat tires and low-profile tires cannot be removed using ordinary tire changers. Traditional tire changers mostly use pry bars to pry the tires, which requires a high level of skill and experience from the operator and is inefficient. To address current market demands, the automatic switching of the tire removal and installation tool heads in fully automatic tire changers is a crucial component. This type of tire changer completely changes the traditional tire changer model, effectively solving the problem of high labor intensity and making tire removal and installation safer, faster, and simpler. Utility Model Content

[0003] To address the aforementioned problems, specifically those raised in the background section, this utility model proposes an automatic switching device for the tool head of a fully automatic tire changer. The device includes a mounting block, a push-pull cylinder mounted behind the mounting block, a square lever mounted on the telescopic end of the push-pull cylinder, a push cylinder and a linear guide rail mounted on the mounting block, a pair of linear guide rail sliders mounted on the linear guide rail, a sliding rack connected below the pair of linear guide rail sliders, the sliding rack connected to the push cylinder, a ratchet rotating gear meshing below the linear guide rail sliders, a ratchet mounted in front of the ratchet rotating gear, the ratchet rotating gear and the ratchet mounted on the mounting block via a tool magazine fixing shaft, a tool magazine assembly mounted on the tool magazine fixing shaft, and the square lever penetrating the mounting block and the tool magazine assembly.

[0004] Preferably, a pair of limit adjustment blocks are installed on the mounting block and above the sliding rack.

[0005] Preferably, each of the pair of limit adjustment blocks is equipped with a limit adjustment screw.

[0006] Preferably, the tool magazine assembly is mounted on the tool magazine fixed shaft via a tensioning sleeve and a tool magazine baffle.

[0007] Preferably, the tool magazine assembly includes a fixed base and a tool magazine, each tool magazine being equipped with a positioning spring stud and each tool magazine containing a tool head.

[0008] Preferably, a protective decorative cover is also installed between the tool library assembly and the mounting block.

[0009] Preferably, the ratchet rotary gear is further equipped with a push pawl and a limit pawl, and the push pawl and the limit pawl are respectively connected to a push pawl return spring and a limit pawl return spring.

[0010] The beneficial technical effect of this utility model is that it solves the problem of automatic tool head switching in a fully automatic hydraulic tire changer. The mounting block is installed inside the housing on the machine column and is driven up and down and back and forth by a hydraulic cylinder to complete the tire removal and installation work. The ratchet has three teeth corresponding to the three tool head positions in the tool head magazine. When a tool head needs to be switched, the ratchet rotates, causing the tool head magazine to rotate and switch positions, thereby achieving automatic switching of the three tool head positions. Attached Figure Description

[0011] Figure 1 A schematic diagram of the structure of this utility model is shown.

[0012] Figure 2 A schematic diagram of the tool library assembly structure described in this utility model is shown.

[0013] Reference numerals in the attached drawings: 1. Mounting block, 2. Push-pull cylinder, 3. Sliding rack, 4. Linear guide slider, 5. Limit fine-tuning set screw, 6. Limit adjustment block, 7. Push cylinder, 8. Push pawl return spring, 9. Push pawl, 10. Protective decorative cover, 11. Linear guide, 12. Ratchet rotating gear, 13. Limit pawl, 14. Limit pawl return spring, 15. Ratchet, 16. Tool magazine fixing shaft, 17. Tool magazine assembly, 18. Tensioning sleeve, 19. Tool magazine baffle, 20. Square bar, 21. Fixing seat, 22. Tool magazine, 23. Positioning spring stud. Detailed Implementation

[0014] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0015] This utility model proposes an automatic switching device for the tool head of a fully automatic tire changer, including a mounting block 1. A push-pull cylinder 2 is mounted behind the mounting block 1. A square bar 20 is mounted on the telescopic end of the push-pull cylinder 2. A push cylinder 7 and a linear guide rail 11 are mounted on the mounting block 1. A pair of linear guide rail sliders 4 are mounted on the linear guide rail 11. A sliding rack 3 is connected below the pair of linear guide rail sliders 4. The sliding rack 3 is connected to the push cylinder 7. A ratchet rotating gear 12 meshes below the linear guide rail sliders 4. A ratchet 15 is mounted in front of the ratchet rotating gear 12. The ratchet rotating gear 12 and the ratchet 15 are mounted on the mounting block 1 via a tool magazine fixing shaft 16. A tool magazine assembly 17 is also mounted on the tool magazine fixing shaft 16. The square bar 20 passes through the mounting block 1. The mounting block 1 and the tool magazine assembly 17 are included. A pair of limit adjustment blocks 6 are installed on the mounting block 1 and above the sliding rack 3. Limit adjustment screws 5 are installed on each of the pair of limit adjustment blocks 6. The tool magazine assembly 17 is installed on the tool magazine fixed shaft 16 through a tensioning sleeve 18 and a tool magazine baffle 19. The tool magazine assembly 17 includes a fixed base 21 and a tool magazine 22. Positioning spring studs 23 are installed on each tool magazine 22, and tool heads are installed inside each tool magazine 22. A protective decorative cover 10 is also installed between the tool magazine assembly 17 and the mounting block 1. A push pawl 9 and a limit pawl 13 are also installed on the ratchet rotary gear 12. The push pawl 9 and the limit pawl 13 are respectively connected to a push pawl return spring 8 and a limit pawl return spring 14.

[0016] When a tool head needs to be switched, the square lever 20 fully exits the tool magazine assembly 17, and the current tool head is stored in the tool magazine 22. The push cylinder 7 pushes the sliding rack 3 forward, causing it to move linearly on the linear guide rail 11 and engage with the ratchet gear 12. The push pawl 9 mounted on the ratchet gear 12 pushes the ratchet 15, simultaneously causing the tool magazine assembly 17 to rotate counterclockwise. When the linear guide rail slider 4 contacts the limit adjustment block 6, a fine adjustment is made using the limit fine-tuning set screw 5 to align the required tool head with the square lever 20. Simultaneously, the limit pawl 13 locks the ratchet 15, limiting the tool magazine assembly 17. The square lever 20 moves forward, ejecting the current tool head for operation. The push cylinder 7 pulls the sliding rack 3 backward, causing it to move linearly on the linear guide rail 11 and engage with the ratchet gear 12. At this time, the limit pawl 13 holds the ratchet 15 in place, and the tool magazine assembly 17 remains stationary after the square lever 20 has ejected the current tool head. The ratchet rotating gear 12 drives the pawl 9 to retract along the ratchet 15 to the next gear. Waiting for the work head to be changed again.

[0017] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0018] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Furthermore, it should be noted that, in the description of this utility model, 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 according to the specific circumstances.

[0020] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0021] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An automatic switching device for the tool head of a fully automatic tire changer, comprising a mounting block (1), characterized in that: A push-pull cylinder (2) is installed behind the mounting block (1). A square bar (20) is installed at the telescopic end of the push-pull cylinder (2). A push cylinder (7) and a linear guide rail (11) are installed on the mounting block (1). A pair of linear guide rail sliders (4) are installed on the linear guide rail (11). A sliding rack (3) is connected below the pair of linear guide rail sliders (4). The sliding rack (3) is connected to the push cylinder (7). A ratchet rotating gear (12) meshes below the linear guide rail slider (4). A ratchet (15) is installed in front of the ratchet rotating gear (12). The ratchet rotating gear (12) and the ratchet (15) are installed on the mounting block (1) through the tool magazine fixing shaft (16). A tool magazine assembly (17) is also installed on the tool magazine fixing shaft (16). The square bar (20) passes through the mounting block (1) and the tool magazine assembly (17).

2. The automatic switching device for the tool head of the fully automatic tire changer according to claim 1, characterized in that: A pair of limit adjustment blocks (6) are installed on the mounting block (1) and above the sliding rack (3).

3. The automatic switching device for the tool head of the fully automatic tire changer according to claim 2, characterized in that: Each of the pair of limit adjustment blocks (6) is equipped with a limit adjustment screw (5).

4. The automatic switching device for the tool head of the fully automatic tire changer according to claim 1, characterized in that: The tool magazine assembly (17) is mounted on the tool magazine fixed shaft (16) via a tensioning sleeve (18) and a tool magazine baffle (19).

5. The automatic switching device for the tool head of the fully automatic tire changer according to claim 1, characterized in that: The tool magazine assembly (17) includes a fixed base (21) and a tool magazine (22). The tool magazine (22) is equipped with a positioning spring stud (23), and the tool magazine (22) is equipped with a tool head.

6. The automatic switching device for the tool head of the fully automatic tire changer according to claim 1, characterized in that: A protective decorative cover (10) is also installed between the tool library assembly (17) and the mounting block (1).

7. The automatic switching device for the tool head of the fully automatic tire changer according to claim 1, characterized in that: The ratchet rotary gear (12) is also equipped with a push pawl (9) and a limit pawl (13), and the push pawl (9) and the limit pawl (13) are respectively connected to a push pawl return spring (8) and a limit pawl return spring (14).

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