Positioning tool for automobile generator machining

Abstract

The utility model relates to the technical field of automobile generator machining, in particular to a positioning tool for automobile generator machining, which comprises a supporting assembly, an adjusting assembly and a clamping assembly, the supporting assembly comprises a top plate, supporting legs and an auxiliary plate, the supporting legs are arranged at four corners below the top plate, a lifting plate is pushed by a propeller in the adjusting assembly, and the auxiliary plate is clamped on the lifting plate. A second hinge seat on the lifting plate drives a mounting seat to move on the top plate through a hinge rod, and due to the fact that the two sets of clamping assemblies are symmetrically arranged, the distance between the two sets of clamping sleeves can be flexibly adjusted. Therefore, the positioning tool can adapt to automobile generators of different specifications, the limitation that a fixing die can only fix the generator of a single specification is overcome, and the universality of the tool is greatly improved; compared with a lead screw feeding control clamp, the positioning tool has the advantages that the lifting plate is directly pushed by the propeller, the mounting seat is driven to move through the hinge structure, the response is quick, and the working table is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of automotive generator processing technology, specifically a positioning fixture for automotive generator processing. Background Technology

[0002] Automotive alternators typically generate electricity using the principle of electromagnetic induction. They mainly consist of components such as a stator, rotor, rectifier, and end caps.

[0003] During the processing, a positioning device is required. If a fixed mold is used for support, it can only fix a single specification of car generator, which has high limitations. If a lead screw feed control fixture is used to hold the car generator, the response is slow. At the same time, during the processing, foreign objects will inevitably remain on the worktable, and the lead screw is often located in the groove of the worktable, which is inconvenient to clean, making it inconvenient to use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a positioning fixture for processing automotive generators.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for processing automotive generators, comprising a support assembly, an adjustment assembly, and a clamping assembly. The support assembly includes a top plate, support legs, and an auxiliary plate. The support legs are arranged at the four corners below the top plate, and the auxiliary plate is arranged between the four sets of support legs. The auxiliary plate is located below the top plate. The clamping assembly includes a mounting base, a guide block, and a clamping sleeve. The clamping assembly is configured as two sets symmetrically arranged on the top plate. The clamping sleeve is arranged on the side of the mounting base near the center of the top plate, and the clamping sleeve is provided with a guide block that is inserted into the mounting base.

[0008] The adjustment assembly includes a first hinge seat, a second hinge seat, a pusher, a lifting plate, and a hinge rod. The top plate is provided with a sliding hole. The first hinge seat is provided below the mounting base, passing through the sliding hole. The pusher passes through the auxiliary plate above and is connected to the lifting plate. The lifting plate is also provided with a second hinge seat adapted to the first hinge seat. The corresponding first hinge seat and second hinge seat are connected by a hinge rod. The first hinge seat is in the shape of a "U". The top plate is located between the lower part of the first hinge seat and the mounting base.

[0009] Preferably, the top plate has a through hole at its center.

[0010] To ensure the stability of the moving mounting base, the present invention is improved by providing a ball bearing underneath the mounting base that contacts the top plate.

[0011] Furthermore, to ensure the stability of the moving mounting base, this utility model is improved by including a support assembly. The support assembly includes a guide rod, a stud, a side plate, and a connecting pipe. The mounting base has connecting pipes symmetrically arranged on both sides at one end away from the center of the top plate. The top plate also has two sets of symmetrically arranged side plates. One end of the guide rod passes through the side plate, and the other end of the guide rod is provided with a stud that is threadedly connected to the connecting pipe.

[0012] Preferably, an auxiliary rod that passes through the auxiliary plate is also provided below the lifting plate.

[0013] Preferably, the guide block is T-shaped.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a positioning fixture for processing automotive generators, which has the following advantages:

[0016] This positioning fixture for processing automotive generators uses an adjustable actuator to push a lifting plate. The second hinged seat on the lifting plate moves the mounting base on the top plate via a hinged rod. Because the clamping components are arranged in two symmetrical sets, the distance between the two sets of clamping sleeves can be flexibly adjusted. This allows the positioning fixture to adapt to different specifications of automotive generators, overcoming the limitation of fixed molds that can only fix generators of a single specification, and greatly improving the versatility of the fixture.

[0017] Compared with the lead screw feed control fixture, this positioning fixture uses a pusher to directly drive the lifting plate, and then drives the mounting base to move through the hinge structure, which is quick and easy to clean. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model and its assembly with an automobile generator;

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 3 This is a partial bottom view of the structure of this utility model;

[0021] Figure 4 This is a partial explosion diagram of the structure of this utility model.

[0022] In the diagram: 1. Top plate; 2. Support leg; 3. Auxiliary plate; 4. Mounting seat; 5. Guide block; 6. Clamping sleeve; 7. First hinge seat; 8. Second hinge seat; 9. Pusher; 10. Lifting plate; 11. Hinge rod; 12. Ball bearing; 13. Guide rod; 14. Stud; 15. Side plate; 16. Connecting pipe; 17. Auxiliary rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A positioning fixture for processing automotive generators includes a support assembly, an adjustment assembly, and a clamping assembly. The support assembly includes a top plate 1, support legs 2, and an auxiliary plate 3. The support legs 2 are arranged at the four corners below the top plate 1, and the auxiliary plate 3 is arranged between the four sets of support legs 2. The auxiliary plate 3 is located below the top plate 1. The clamping assembly includes a mounting base 4, a guide block 5, and a clamping sleeve 6. The clamping assembly is configured as two sets symmetrically arranged on the top plate 1. The clamping sleeve 6 is arranged on the side of the mounting base 4 near the center of the top plate 1, and the clamping sleeve 6 is provided with a guide block 5 that is inserted into the mounting base 4.

[0025] The top plate 1 serves as the working surface of the tooling, used to support and position the relevant components of the automotive generator. The four support legs 2 at the bottom corners of the top plate 1 support the entire tooling, ensuring its stability during operation and enabling it to withstand the weight of the automotive generator and various forces generated during processing. The adjustment assembly includes a first hinge seat 7, a second hinge seat 8, a pusher 9, a lifting plate 10, and a hinge rod 11. The top plate 1 has a sliding hole, and the first hinge seat 7, passing through the sliding hole, is located below the mounting base 4. The pusher 9 passes through the auxiliary plate 3 and connects to the lifting plate 10. The lifting plate 10 also has a second hinge seat 8 adapted to the first hinge seat 7. The first hinge seat 7 and the second hinge seat 8 are connected by the hinge rod 11. The first hinge seat 7 is U-shaped, and the top plate 1 is located between the lower part of the first hinge seat 7 and the mounting base 4.

[0026] The auxiliary plate 3, located between the four sets of support legs 2 and below the top plate 1, not only enhances the stability of the entire support structure but also provides installation positions for components such as the pusher 9 in the adjustment assembly, making the tooling structure more compact and reasonable. The pusher 9 passes through the auxiliary plate 3 and connects to the lifting plate 10. When the pusher 9 is activated, it generates an upward or downward thrust, pushing the lifting plate 10 to move vertically. The lifting plate 10 is provided with a second hinge seat 8 that matches the first hinge seat 7 below the mounting base 4. The two hinge seats are connected by a hinge rod 11. When the lifting plate 10 rises or falls under the action of the pusher 9, the second hinge seat 8 on the lifting plate 10 will drive the first hinge seat 7 below the mounting base 4 to move through the hinge rod 11. Since the first hinge seat 7 is U-shaped and the top plate 1 is located between the lower part of the first hinge seat 7 and the mounting base 4, the first hinge seat 7 will move horizontally along the surface of the top plate 1, constrained by the sliding hole, thereby driving the mounting base 4 to move on the top plate 1.

[0027] The guide block 5 on the clamping sleeve 6 is T-shaped and engages with the mounting base 4. This design facilitates the quick installation and positioning of the clamping sleeve 6 on the mounting base 4. Simultaneously, the T-shaped guide block 5 effectively prevents the clamping sleeve 6 from falling off during use, ensuring clamping stability. The mounting base 4 is moved on the top plate 1 via an adjusting component, allowing for flexible adjustment of the distance between the two sets of clamping sleeves 6. Since the clamping sleeve 6 is located on the side of the mounting base 4 closest to the center of the top plate 1, the movement of the mounting base 4 causes the clamping sleeve 6 to move synchronously. Therefore, the distance between the two sets of clamping sleeves 6 can be adjusted according to the different specifications of the automotive generator, achieving secure clamping of automotive generators of different sizes.

[0028] The through hole in the center of the top plate 1 reduces the weight of the top plate 1, making the overall tooling lighter. On the other hand, during the processing of the automotive generator, the through hole can provide a drainage channel for coolant, machining debris, etc., preventing them from accumulating on the top plate 1 and helping to maintain a clean processing environment. For automotive generators with a raised center end cover, it can also play an auxiliary positioning role.

[0029] The ball bearings 12 located below the mounting base 4 and in contact with the top plate 1 convert the sliding friction between the mounting base 4 and the top plate 1 into rolling friction. This not only greatly reduces the frictional force when the mounting base 4 moves, making the movement of the mounting base 4 on the top plate 1 smoother, but also allows the ball bearings 12 to better maintain balance during the movement of the mounting base 4, reducing the wobbling of the mounting base 4 during movement, thereby ensuring the stability of the movement of the mounting base 4 and improving the positioning accuracy of the automotive generator.

[0030] The support assembly, consisting of guide rods 13, studs 14, side plates 15, and connecting pipes 16, further enhances the stability of the movement of the mounting base 4. The connecting pipes 16, symmetrically arranged on both sides of the end of the mounting base 4 furthest from the center of the top plate 1, are threadedly connected to the guide rods 13 between the two sets of symmetrically arranged side plates 15 on the top plate 1 via studs 14. The guide rods 13 provide precise guidance for the movement of the mounting base 4, restricting its movement to along the direction of the guide rods 13 on the top plate 1, preventing the mounting base 4 from shifting during movement, and ensuring the reliability and machining accuracy of the positioning fixture.

[0031] The auxiliary rod 17, which passes through the auxiliary plate 3 below the lifting plate 10, provides auxiliary support and guidance for the lifting movement of the lifting plate 10. Working together with the pusher 9, it makes the vertical movement of the lifting plate 10 more stable, preventing tilting or swaying during movement, ensuring the reliability of the adjustment components, and thus ensuring that the entire positioning fixture can stably position and clamp the automotive generator.

[0032] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0033] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A positioning fixture for machining automotive generators, comprising a support assembly, an adjustment assembly, and a clamping assembly, characterized in that: The support component includes a top plate (1), support legs (2) and an auxiliary plate (3). The support legs (2) are arranged at the four corners below the top plate (1). The auxiliary plate (3) is also arranged between the four groups of support legs (2). The auxiliary plate (3) is arranged below the top plate (1). The clamping component includes a mounting seat (4), a guide block (5) and a clamping sleeve (6). The clamping component is arranged in two groups symmetrically on the top plate (1). The clamping sleeve (6) is arranged on one side of the mounting seat (4) close to the center of the top plate (1). The guide block (5) inserted into the mounting seat (4) is arranged on the clamping sleeve (6). The adjusting component includes a first hinge seat (7), a second hinge seat (8), a thruster (9), a lifting plate (10) and a hinge rod (11). A sliding hole is arranged on the top plate (1). The first hinge seat (7) penetrating through the sliding hole is arranged below the mounting seat (4). The thruster (9) penetrates through the auxiliary plate (3) upward and is connected with the lifting plate (10). The second hinge seat (8) adapted to the first hinge seat (7) is also arranged on the lifting plate (10). The corresponding first hinge seat (7) and second hinge seat (8) are connected by the hinge rod (11). The first hinge seat (7) is in a "U" shape. The top plate (1) is arranged between the lower part of the first hinge seat (7) and the mounting seat (4).

2. The positioning fixture for machining an automotive generator according to claim 1, characterized in that: A through hole is arranged at the center of the top plate (1).

3. The positioning fixture for machining an automotive generator according to claim 2, characterized in that: The mounting seat (4) is also provided with balls (12) contacting the top plate (1) below it.

4. The positioning fixture for machining an automotive generator according to claim 3, characterized in that: It further includes a support component. The support component includes a guide rod (13), a stud (14), a side plate (15) and a connecting pipe (16). The connecting pipes (16) are symmetrically arranged on both sides of one end of the mounting seat (4) far from the center of the top plate (1). Two groups of symmetrically arranged side plates (15) are also arranged on the top plate (1). One end of the guide rod (13) penetrates through the side plate (15). The stud (14) threadedly connected with the connecting pipe (16) is arranged at the other end of the guide rod (13).

5. A positioning fixture for machining an automotive generator according to claim 4, characterized in that: The auxiliary rod (17) penetrating through the auxiliary plate (3) is also arranged below the lifting plate (10).

6. The positioning fixture for machining an automotive generator according to claim 5, characterized in that: The guide block (5) is in a T shape.

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