Positioning tool for assisting flexible machining of automobile hub

Abstract

The utility model belongs to the technical field of hub machining, and particularly relates to a positioning tool for assisting flexible machining of an automobile hub, which comprises a core seat, a sleeve arranged on the core seat, a cover plate arranged at the top of the sleeve, a through hole formed in the middle of the cover plate, a connecting shaft slidably arranged in the sleeve, and a positioning core connected with one end of the connecting shaft after penetrating through the through hole. A compression spring is arranged between the connecting shaft and the core seat, a positioning table is arranged at the top end of the positioning core, and the positioning table is of a circular-truncated-cone-shaped structure; a connecting lug plate is arranged on the outer side wall of the bottom end of the sleeve; a first mounting hole is formed in the core seat corresponding to the connecting lug plate. The center of the hub is clamped on the positioning table of the positioning core, the positioning core is subjected to the gravity action of the hub, the compression spring contracts, the elastic force of the compression spring enables the positioning core to position the hub, the hub can be conveniently machined, the positioning table is of a circular-truncated-cone-shaped structure and can adapt to hubs of different diameters, the adaptability of the positioning tool is improved, and the machining efficiency is improved. The time for replacing the tool is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub processing, in particular to a positioning tool for assisting flexible processing of automobile wheel hubs. Background Art

[0002] Automotive wheels are essential components and one of the most critical safety features. With the rapid development of China's automotive industry, the demand for automotive wheels is increasing, and so are the demands for personalized designs. There are many different types of automotive wheels, and different wheel models correspond to different diameters.

[0003] The existing positioning method, using a dead-core positioning tool, is only suitable for products with identical center hole sizes and a back-distance difference of a few millimeters. This positioning method has certain disadvantages: when replacing products of the same size, the back-distance difference is too large, or when replacing products with different center hole sizes, the tooling needs to be changed, affecting production efficiency.

[0004] In response to the above problems, this utility model document proposes a positioning tool for assisting the flexible processing of automobile wheel hubs. Utility Model Content

[0005] The utility model provides a positioning tool for assisting the flexible processing of automobile wheel hubs, which reduces the time consumed in replacing the tool and improves production efficiency.

[0006] The utility model provides the following technical solutions:

[0007] A positioning tool for assisting the flexible processing of automobile wheel hubs, comprising a core seat, a sleeve provided on the core seat, a cover plate provided on the top of the sleeve, a through hole provided in the middle of the cover plate, a connecting shaft slidingly provided in the sleeve, one end of the connecting shaft passing through the through hole and connected to a positioning core, a limit block provided on the outer wall of the other end, a compression spring provided between the connecting shaft and the core seat, the top of the positioning core being a positioning platform, and the positioning platform being a frustum-shaped structure; a connecting ear plate provided on the outer wall of the bottom end of the sleeve, and a first mounting hole provided on the core seat corresponding to the connecting ear plate.

[0008] Furthermore, a first guide groove is formed on the adjacent end faces of the connecting shaft and the core seat, and a guide column matching the first guide groove is provided on the core seat. One end of the compression spring rests on the bottom surface of the first guide groove, and the other end rests on the guide column.

[0009] Furthermore, an upper positioning groove is formed on the bottom surface of the first guide groove, and a lower positioning groove is formed on the top of the guide column, and both ends of the compression spring are respectively clamped in the upper positioning groove and the lower positioning groove.

[0010] Furthermore, an annular positioning plate is provided on the core seat, and the guide column is clamped in the middle of the annular positioning plate.

[0011] Furthermore, a second guide groove is opened on the limit block along the height direction, and a guide hole is opened on the side wall of the sleeve. An anti-rotation screw is provided in the guide hole, and one end of the anti-rotation screw is located in the second guide groove. The width of the second guide groove matches the diameter of the anti-rotation screw.

[0012] Furthermore, a mounting groove is provided at the top end of the connecting shaft, one end of the positioning core is a positioning platform, and the other end is a positioning block matching the mounting groove.

[0013] Furthermore, a second mounting hole is opened in the middle of the positioning core, a threaded hole is opened at the bottom of the mounting groove of the connecting shaft, and the positioning core and the connecting shaft are fixedly connected by countersunk bolts passing through the second mounting hole and the threaded hole.

[0014] Furthermore, the core seat is a disc-shaped structure with a positioning hole in the middle and connection holes evenly arranged near the edge.

[0015] In the utility model, the center of the wheel hub is clamped on the positioning platform of the positioning core. The positioning core is affected by the gravity of the wheel hub, the compression spring contracts, and the elastic force of the compression spring enables the positioning core to position the wheel hub, which is convenient for processing the wheel hub. The positioning platform is a frustum-shaped structure and can adapt to wheel hubs of different diameters, thereby improving the adaptability of the positioning tooling, saving the time consumed in replacing the tooling, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic cross-sectional view of a positioning tool for assisting flexible processing of automobile wheels provided by an embodiment of the present utility model;

[0017] Figure 2 The present invention is a schematic cross-sectional view of a sleeve in a positioning tool for assisting flexible processing of an automobile wheel hub provided by an embodiment of the present invention.

[0018] Reference numerals:

[0019] 1. Core seat; 101. Positioning hole; 102. First mounting hole; 103. Connecting hole; 2. Sleeve; 201. Guide hole; 3. Cover plate; 301. Through hole; 4. Connecting shaft; 401. First guide groove; 402. Upper positioning groove; 403. Mounting groove; 5. Positioning core; 501. Positioning platform; 502. Positioning block; 6. Limit block; 601. Second guide groove; 7. Guide column; 701. Lower positioning groove; 8. Compression spring; 9. Anti-rotation screw; 10. Positioning plate; 11. Connecting ear plate. DETAILED DESCRIPTION

[0020] The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0021] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0022] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0023] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0024] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0025] Example:

[0026] Reference Figure 1 and Figure 2As shown, a positioning tool for assisting the flexible processing of automobile wheel hubs includes a core seat 1, a sleeve 2 is provided on the core seat 1, a cover plate 3 is provided on the top of the sleeve 2, a through hole 301 is provided in the middle of the cover plate 3, a connecting shaft 4 is slidably provided in the sleeve 2, one end of the connecting shaft 4 passes through the through hole 301 and is connected to a positioning core 5, and a limit block 6 is provided on the outer wall of the other end, a compression spring 8 is provided between the connecting shaft 4 and the core seat 1, the top of the positioning core 5 is a positioning platform 501, and the positioning platform 501 is a truncated cone structure; a connecting ear plate 11 is provided on the outer wall of the bottom end of the sleeve 2, and a first mounting hole 102 is provided on the core seat 1 at a position corresponding to the connecting ear plate 11.

[0027] The core seat 1 is used to connect to the machining platform of the machine tool. The connecting shaft 4 is slidably set in the through hole 301 and is supported by the compression spring 8. The top of the positioning core 5 is a frustum-shaped positioning platform 501, which can adapt to the center holes of hubs of different diameters.

[0028] The limit block 6 prevents the connecting shaft 4 from falling off from the through hole 301 of the upper cover plate 3 of the sleeve 2 under the elastic force of the compression spring 8. Since the positioning core 5 is installed on the connecting shaft 4, the falling off of the connecting shaft 4 will cause the positioning core 5 to fall off together, making the positioning work unable to work normally.

[0029] The sleeve 2 is mounted on the core base 1 via the connecting lug 11 and fixed via the first mounting hole 102 .

[0030] The wheel hub is placed on the positioning table 501. Under the action of the gravity of the wheel hub, the compression spring 8 contracts. At the same time, under the action of the elastic force of the compression spring 8, the positioning table 501 of the positioning core 5 fits tightly with the center hole of the wheel hub, which plays a positioning role for the wheel hub. This makes it easier for the position of the center hole to remain unchanged during the processing of the wheel hub, thereby ensuring the processing accuracy of the wheel hub.

[0031] A first guide groove 401 is formed on the adjacent end surface of the connecting shaft 4 and the core seat 1. A guide column 7 is provided on the core seat 1 to match the first guide groove 401. One end of the compression spring 8 rests on the bottom surface of the first guide groove 401, and the other end rests on the guide column 7.

[0032] The connecting shaft 4 is sleeved on the guide column 7 through the first guide groove 401. The connecting shaft 4 slides up and down along the guide column 7 through the first guide groove 401, ensuring that the connecting shaft 4 does not deflect when moving up and down, thereby improving the accuracy of the movement of the connecting shaft 4, and then ensuring the stability of the position of the positioning core 5, thereby ensuring the accuracy of positioning the center hole of the hub.

[0033] An upper positioning groove 402 is formed on the bottom surface of the first guide groove 401 , and a lower positioning groove 701 is formed on the top of the guide post 7 . Both ends of the compression spring 8 are respectively clamped in the upper positioning groove 402 and the lower positioning groove 701 .

[0034] The two ends of the compression spring 8 are positioned by the upper positioning groove 402 and the lower positioning groove 701 to prevent the compression spring 8 from changing its position due to the gravity of the wheel hub. Once the position of the compression spring 8 changes, the direction of the force exerted by the elastic force of the compression spring 8 on the connecting shaft 4 will be affected, thereby affecting the positioning effect of the positioning core 5.

[0035] An annular positioning plate 10 is provided on the core seat 1 , and the guide post 7 is clamped in the middle of the annular positioning plate 10 .

[0036] The guide column 7 is positioned by the annular positioning plate 10 to prevent the guide column 7 from being shifted due to the gravity of the wheel hub. Since the connecting shaft 4 slides along the guide column 7, the deflection of the guide column 7 will affect the moving direction of the connecting shaft 4, and then affect the angle of the positioning core 5, thereby affecting the positioning accuracy of the positioning core 5.

[0037] A second guide groove 601 is opened on the limit block 6 along the height direction, and a guide hole 201 is opened on the side wall of the sleeve 2. An anti-rotation screw 9 is provided in the guide hole 201. One end of the anti-rotation screw 9 is located in the second guide groove 601. The width of the second guide groove 601 matches the diameter of the anti-rotation screw 9.

[0038] The anti-rotation screw 9 passes through the side wall of the sleeve 2 and is arranged in the second guide groove 601 of the limit block 6. When the connecting shaft 4 slides up and down, the limit block 6 moves up and down with the connecting shaft 4, and the second guide groove 601 on the limit block 6 also moves together, while the position of the anti-rotation screw 9 remains unchanged. The anti-rotation screw 9 prevents the limit block 6 from rotating when moving up and down. Since the limit block 6 is fixedly connected to the connecting shaft 4, and the positioning core 5 is fixed on the connecting shaft 4, the positioning core 5 is prevented from rotating, thereby ensuring the positioning effect of the positioning core 5 on the wheel hub. At the same time, it also prevents the positioning core 5 from rotating and causing wear to the center hole of the wheel hub, affecting the quality of the wheel hub.

[0039] A mounting groove 403 is provided at the top end of the connecting shaft 4 , and one end of the positioning core 5 is a positioning platform 501 , and the other end is a positioning block 502 that matches the mounting groove 403 .

[0040] The positioning core 5 is fixed on the top of the connecting shaft 4 through the positioning block 502 and the mounting groove 403, so that the positioning core 5 will not move laterally after being affected by the gravity of the wheel hub, thereby ensuring the positioning effect of the positioning core 5.

[0041] A second mounting hole is opened in the middle of the positioning core 5, and a threaded hole is opened at the bottom of the mounting groove 403 of the connecting shaft 4. The positioning core 5 and the connecting shaft 4 are fixedly connected by countersunk bolts passing through the second mounting hole and the threaded hole.

[0042] The positioning core 5 and the connecting shaft 4 are locked and fixed by countersunk bolts, which further improves the stability of the connection structure of the positioning core 5 and the connecting shaft 4, and also prevents the connecting shaft 4 from moving upward after the wheel hub is removed due to the upward elastic force of the compression spring 8. After the positioning core 5 and the connecting shaft 4 are fixed with countersunk bolts, the positioning core 5 can be prevented from falling off from the connecting shaft 4 under the action of inertia, thereby preventing the positioning core 5 from falling off and affecting the safety of workers' operations.

[0043] The core seat 1 is a disc-shaped structure with a positioning hole 101 in the middle and connection holes 103 evenly arranged near the edge.

[0044] The core seat 1 is installed on the processing table of the machine tool through the connecting hole 103. The installation position of the core seat 1 is positioned through the positioning hole 101 in the middle and the positioning pin on the processing table to ensure that the core seat 1 can be accurately installed in the processing position. The position of the core seat 1 will directly affect the position of the positioning core 5, thereby reimbursing the accurate positioning of the positioning core 5, thereby ensuring the processing accuracy of the wheel hub.

[0045] During assembly, first install the core seat 1 on the processing table of the machine tool, determine the installation position of the core seat 1 through the positioning hole 101 and the positioning pin on the processing table, and then fix the core seat 1 on the processing table through the connecting hole 103 with the bolt, then set the positioning plate 10 on the core seat 1, and clamp the guide column 7 in the middle of the positioning plate 10. At the same time, connect the positioning core 5 and the connecting shaft 4 with countersunk bolts, then put the connecting shaft 4 on the guide column 7, and place the compression spring 8 between the connecting shaft 4 and the guide column 7, then put the sleeve 2 on the outside of the connecting shaft 4, and at the same time, the top of the connecting shaft 4 passes through the through hole 301 on the cover plate 3, and the sleeve 2 is fixed to the core seat 1 through the connecting ear plate 11 and the first mounting hole 102 with bolts.

[0046] During use, the wheel hub is placed on the positioning table 501 of the positioning core 5, with the center hole of the wheel hub resting against the side wall of the positioning table 501, completing the positioning of the wheel hub. The positioning core 5 moves downward due to the weight of the wheel hub, causing the connecting shaft 4 to move downward along the guide column 7. The compression spring 8 is forced to contract, and the elastic force acts on the positioning core 5 to position the center hole of the wheel hub. The wheel hub rim is clamped by the machine tool's claws, thus completing the positioning of the wheel hub. The positioning table 501 is a frustum-shaped structure that can accommodate wheel hubs of different diameters, improving the adaptability of the positioning tooling, saving time consumed in tooling replacement, and improving production efficiency.

[0047] In actual use, the limiting plate and the core seat 1 are integrally formed, the limiting block 6 and the connecting shaft 4 are integrally formed, and the sleeve 2, the cover plate 3 and the connecting ear plate 11 are integrally formed to improve the overall structural strength.

[0048] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. The embodiments of the present utility model and the features of the embodiments can be combined with each other unless there is a conflict. Therefore, the scope of protection of the present utility model shall be based on the scope of protection of the claims.

Claims

1. A positioning tool for assisting the flexible processing of automobile wheels, characterized in that: It includes a core seat, a sleeve is provided on the core seat, a cover plate is provided on the top of the sleeve, a through hole is provided in the middle of the cover plate, a connecting shaft is slidably provided in the sleeve, one end of the connecting shaft is connected to the positioning core through the through hole, and a limit block is provided on the outer wall of the other end, a compression spring is provided between the connecting shaft and the core seat, the top of the positioning core is a positioning platform, and the positioning platform is a frustum-shaped structure; a connecting ear plate is provided on the outer wall of the bottom end of the sleeve, and a first mounting hole is provided on the core seat at a position corresponding to the connecting ear plate.

2. A positioning tool for assisting flexible processing of automobile wheels according to claim 1, characterized in that: A first guide groove is formed on the adjacent end faces of the connecting shaft and the core seat. A guide column matching the first guide groove is provided on the core seat. One end of the compression spring rests on the bottom surface of the first guide groove, and the other end rests on the guide column.

3. A positioning tool for assisting flexible processing of automobile wheels according to claim 2, characterized in that: An upper positioning groove is formed on the bottom surface of the first guide groove, a lower positioning groove is formed on the top of the guide post, and two ends of the compression spring are respectively clamped in the upper positioning groove and the lower positioning groove.

4. A positioning tool for assisting flexible processing of automobile wheels according to claim 3, characterized in that: An annular positioning plate is provided on the core seat, and the guide column is clamped in the middle of the annular positioning plate.

5. The positioning tool for assisting the flexible processing of automobile wheels according to claim 1, characterized in that: A second guide groove is opened on the limit block along the height direction, and a guide hole is opened on the side wall of the sleeve. An anti-rotation screw is provided in the guide hole, and one end of the anti-rotation screw is located in the second guide groove. The width of the second guide groove matches the diameter of the anti-rotation screw.

6. The positioning tool for assisting the flexible processing of automobile wheels according to claim 1, characterized in that: The top end of the connecting shaft is provided with a mounting groove, one end of the positioning core is a positioning platform, and the other end is a positioning block matching the mounting groove.

7. A positioning tool for assisting flexible processing of automobile wheels according to claim 6, characterized in that: A second mounting hole is opened in the middle of the positioning core, a threaded hole is opened at the bottom of the mounting groove of the connecting shaft, and the positioning core and the connecting shaft are fixedly connected by countersunk bolts passing through the second mounting hole and the threaded hole.

8. The positioning tool for assisting the flexible processing of automobile wheels according to claim 1, characterized in that: The core seat is a disc-shaped structure with a positioning hole in the middle and connection holes evenly arranged near the edge.

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