Hub machining clamping mechanism and device

Abstract

The utility model relates to a hub machining clamping mechanism and device, which comprises a base plate, an annular groove is arranged on the top surface of the base plate, and a plurality of positioning columns matched with hub casting bolt holes are arranged in the annular groove; a cover plate is arranged on the top surface of the base plate, the cover plate and the base plate are detachably and fixedly connected, a plurality of through holes which are annularly distributed by taking the circle center of the annular groove as the circle center are formed in the cover plate, the through holes are divided into a plurality of hole groups, and the through holes in each hole group are uniformly arranged; one end of the positioning column is in sliding fit with the annular groove, and the other end penetrates through the through hole, extends upwards and protrudes above the cover plate. According to the technical scheme, the number of the positioning columns can be increased or decreased according to the number of the bolt holes of the hub casting needing to be machined, and the clamping device can adapt to clamping and fixing of hub castings with different bolt hole numbers.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub casting processing auxiliary equipment, in particular to a wheel hub processing clamping mechanism and device. Background Art

[0002] Wheel hub castings refer to the hub parts on vehicles such as cars and motorcycles that are made using a casting process. Wheel hub castings are usually made of aluminum alloy or steel and have high strength and durability.

[0003] During the processing, the wheel hub casting is first heat treated, shot blasted and sprayed, and then machined to a mirror finish.

[0004] The wheel hub needs to be fixed during machining. The commonly used fixing method is to fix it through a fixing fixture, and the fixing fixture fixes the wheel hub casting by cooperating with the reserved bolt holes of the wheel hub casting. Since different wheel hubs have different numbers of reserved bolt holes, such as the commonly used 4 holes, 5 holes and 6 holes, the fixing fixture is not universal. It is necessary to manufacture a special fixture for each number of holes in the wheel hub. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a wheel hub processing clamping mechanism and device to solve the problem in the prior art that different wheel hubs have different numbers of reserved bolt holes, resulting in the fixing fixture being not universal and requiring special clamps to be manufactured separately for each wheel hub with each number of holes.

[0006] The utility model is achieved through the following technical solutions:

[0007] A wheel hub processing clamping mechanism comprises a base plate, a top surface of the base plate is provided with an annular groove, and a plurality of positioning columns for matching with bolt holes of a wheel hub casting are provided in the annular groove;

[0008] A cover plate is provided on the top surface of the substrate, the cover plate is detachably fixedly connected to the substrate, and the cover plate is provided with a plurality of through holes distributed in an annular pattern with the center of the annular groove as the center. The plurality of through holes are divided into a plurality of hole groups, and the plurality of through holes in each hole group are evenly arranged;

[0009] One end of the positioning column is slidably engaged with the annular groove, and the other end extends upward through the through hole and protrudes above the cover plate.

[0010] It is further defined that the lower end of the positioning column is connected to a sliding block, the sliding block is an arc-shaped structure, the outer arc radius of the sliding block is equal to the outer side radius of the annular groove, and the inner arc radius of the sliding block is equal to the inner side radius of the annular groove;

[0011] The lower end of the positioning column is connected to the center of the top surface of the sliding block.

[0012] It is further defined that the positioning column is a threaded rod, and a mounting hole is provided in the center of the top surface of the sliding block and passes through in the thickness direction;

[0013] A limiting groove is provided on the bottom surface of the sliding block, the limiting groove is communicated with the mounting hole, and the lower end of the threaded rod is connected to a limiting block that cooperates with the limiting groove.

[0014] It is further defined that an elastic support member is provided between every two adjacent sliding blocks, and two ends of the elastic support member respectively abut against opposite sides of the two adjacent sliding blocks.

[0015] It is further defined that the elastic support member includes a support spring and push plates installed at both ends of the support spring, the two push plates respectively abut against the opposite sides of two adjacent sliding blocks, and a positioning protrusion is provided on the side of the push plate facing the sliding block, and a positioning groove is provided on the sliding block to cooperate with the positioning protrusion, and the positioning protrusion is inserted into the positioning groove.

[0016] It is further defined that a slot is provided on a side of the push plate facing the support spring, and an end portion of the support spring is inserted into the slot.

[0017] It is further defined that the annular groove is composed of an inner ring body and an outer ring body arranged concentrically, and both the inner ring body and the outer ring body protrude from the top surface of the substrate.

[0018] It is further defined that the cover plate is a circular structure, the outer edge of the cover plate is provided with a fold that is folded downward and engaged with the outside of the outer ring body, and a plurality of connecting ears are provided on the outer side of the fold.

[0019] A wheel hub processing clamping device is provided, wherein a mounting seat is provided below the base plate, a transmission shaft extending downward is connected to the middle of the bottom surface of the base plate, the transmission shaft passes through the mounting seat and is rotatably connected to the mounting seat.

[0020] It is further defined that a longitudinal rotation support portion is provided between the bottom surface of the base plate and the top surface of the mounting seat, the longitudinal rotation support portion comprising a first support ring mounted on the bottom surface of the base plate, a second support ring mounted on the top surface of the mounting seat, and a plurality of balls provided between the first support ring and the second support ring;

[0021] The bottom surface of the base plate is provided with a first annular mounting groove coaxial with the transmission shaft, and the first support ring is installed in the first annular mounting groove;

[0022] The top surface of the mounting seat is provided with a second annular mounting groove coaxial with the transmission shaft, and the second support ring is installed in the second annular mounting groove.

[0023] The beneficial effects of the present invention are:

[0024] During use, if the wheel hub processing clamping mechanism and device requires processing of a wheel hub casting with four bolt holes, the placement position of the locating column in the annular groove corresponds to the respective angles of the through holes in the hole group consisting of the four through holes. Similarly, the present technical solution can increase or decrease the number of locating columns according to the number of bolt holes of the wheel hub casting that needs to be processed, and can adapt to the clamping and fixation of wheel hub castings with different numbers of bolt holes.

[0025] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of the clamping mechanism for wheel hub machining;

[0027] Figure 2 This is a schematic diagram of the internal structure of the wheel hub processing clamping mechanism;

[0028] Figure 3 Schematic diagram of the connection structure between the positioning column and the sliding block;

[0029] Figure 4 It is a structural diagram of the push plate;

[0030] Figure 5 A three-dimensional diagram of the clamping device for wheel hub machining;

[0031] Figure 6 This is the front view of the wheel hub processing clamping device;

[0032] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure of AA;

[0033] In the figure: 1. Base plate; 2. Positioning column; 3. Cover plate; 4. Through hole; 5. Sliding block; 6. Limiting groove; 7. Limiting block; 8. Support spring; 9. Push plate; 10. Positioning protrusion; 11. Positioning groove; 12. Slot; 13. Inner ring body; 14. Outer ring body; 15. Flanged edge; 16. Connecting lug; 17. Mounting seat; 18. Transmission shaft; 19. First support ring; 20. Second support ring; 21. Ball; 22. First annular mounting groove; 23. Second annular mounting groove. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the above description of the present invention, it should be noted that the terms "one side" and "the other side" and the like indicate positions or locations based on the positions or locations shown in the accompanying drawings, or the positions or locations in which the product of the present invention is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0038] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0039] See also Figure 1-7 The utility model provides a technical solution: a wheel hub processing clamping mechanism, comprising a base plate 1, wherein the top surface of the base plate 1 is provided with an annular groove, wherein a plurality of positioning columns 2 for matching with the bolt holes of the wheel hub casting are provided in the annular groove;

[0040] A cover plate 3 is provided on the top surface of the substrate 1. The cover plate 3 is detachably fixed to the substrate 1. The cover plate 3 is provided with a plurality of through holes 4 distributed in an annular pattern with the center of the annular groove as the center. The plurality of through holes 4 are divided into a plurality of hole groups, and the plurality of through holes 4 in each hole group are evenly arranged.

[0041] One end of the positioning post 2 is slidably engaged with the annular groove, and the other end extends upward through the through hole 4 and protrudes above the cover plate 3.

[0042] The cover plate 3 and the base plate 1 are detachably fixedly connected. The annular groove can be exposed by removing the cover plate 3. In this state, the corresponding number of positioning posts 2 can be matched according to the number of hub bolt holes to be machined. Then, the cover plate 3 can be installed on the base plate 1. During the installation process, multiple positioning posts 2 extend from multiple through holes 4 in the same hole group on the cover plate 3.

[0043] Among them, the cover plate 3 can be provided with marks corresponding to different hole groups, and the marks can be numbers or pattern lights, that is, the sides of multiple through holes 4 in the same hole group are marked with the same numbers or patterns;

[0044] During implementation, some of the through holes 4 in different hole groups may overlap, that is, some of the through holes 4 in multiple hole groups may be the same when their distribution angles on the cover plate 3 are the same;

[0045] For example, there are three hole groups, and the numbers of through holes 4 in the three hole groups are four, five and six respectively;

[0046] The hole groups formed by the four through holes 4 are distributed at angles of 0°, 90°, 180° and 270°;

[0047] The hole group consisting of five through holes 4 has distribution angles of: 0°, 72°, 144°, 216° and 288°;

[0048] The hole group consisting of six through holes 4 is distributed at angles of: 0°, 60°, 120°, 180°, 240°, 300°;

[0049] That is, the through holes 4 located at 0° are shared by the above three hole groups, and the through holes 4 located at 0° and 180° are shared by the hole group consisting of four through holes 4 and the hole group consisting of six through holes 4;

[0050] Specifically, during use, if the wheel hub casting that needs to be processed has four bolt holes, the placement position of the positioning column 2 in the annular groove corresponds to the respective angles of the through holes 4 in the hole group composed of four through holes 4. Similarly, the present technical solution can increase or decrease the number of positioning columns 2 according to the number of bolt holes of the wheel hub casting that needs to be processed, and can adapt to the clamping and fixation of wheel hub castings with different numbers of bolt holes.

[0051] It is further defined that the lower end of the positioning column 2 is connected to a sliding block 5, and the sliding block 5 is an arc-shaped structure, the outer arc radius of the sliding block 5 is equal to the outer side radius of the annular groove, and the inner arc radius of the sliding block 5 is equal to the inner side radius of the annular groove;

[0052] The lower end of the positioning column 2 is connected to the center of the top surface of the sliding block 5.

[0053] The sliding block 5 is slidably fitted in the annular groove, and both sides thereof are in contact with the outer shape of the annular groove, thereby increasing the contact area between the positioning post 2 and the annular groove and improving the installation stability of the positioning post 2 in the annular groove.

[0054] It is further defined that the positioning column 2 is a threaded rod, and the center of the top surface of the sliding block 5 is provided with a mounting hole penetrating along the thickness direction;

[0055] The bottom surface of the sliding block 5 is provided with a limiting groove 6 , which is communicated with the mounting hole, and the lower end of the threaded rod is connected to a limiting block 7 that cooperates with the limiting groove 6 .

[0056] The positioning column 2 is a threaded rod, that is, it can be tightened by a nut after the wheel hub casting is installed, and the lower end of the positioning column 2 cooperates with the limiting groove 6 by setting a limiting block 7. The limiting block 7 can be a polygonal block structure protruding around the lower end of the positioning column 2 or protruding to one side of the lower end of the positioning column 2. The limiting groove 6 then expands around the lower end of the mounting hole or extends to one side of the lower end of the mounting hole accordingly, that is, it can limit the rotation of the positioning column 2 and improve the stability of the connection structure between the positioning column 2 and the sliding block 5.

[0057] It is further defined that an elastic support member is provided between every two adjacent sliding blocks 5 , and two ends of the elastic support member respectively abut against opposite sides of the two adjacent sliding blocks 5 .

[0058] Two adjacent sliding blocks 5 can be pushed apart to both sides by the elastic support members. When elastic support members of the same specification are selected, multiple sliding blocks 5 can be evenly distributed in the annular groove under the action of multiple elastic support members.

[0059] It is further defined that the elastic support member includes a support spring 8 and a push plate 9 installed at both ends of the support spring 8, the two push plates 9 respectively abut against the opposite sides of two adjacent sliding blocks 5, and the push plate 9 is provided with a positioning protrusion 10 on the side facing the sliding block 5, and the sliding block 5 is provided with a positioning groove 11 that cooperates with the positioning protrusion 10, and the positioning protrusion 10 is inserted into the positioning groove 11.

[0060] Both ends of the support spring 8 are connected to the push plate 9, and the push plate 9 is connected to the sliding block 5 through the positioning protrusion 10 and the positioning groove 11. The push plate 9 will serve as the force-applying part of the support spring 8 on the sliding block 5, which can balance the thrust of the support spring 8 on the sliding block 5.

[0061] It is further defined that a slot 12 is formed on a side of the push plate 9 facing the support spring 8 , and an end portion of the support spring 8 is inserted into the slot 12 .

[0062] The clamping groove 12 is used as a limiting connection structure for supporting the end of the spring 8, which facilitates installation and connection. The clamping groove 12 can be formed by folding an elastic plate.

[0063] It is further defined that the annular groove is composed of an inner ring body 13 and an outer ring body 14 arranged concentrically, and both the inner ring body 13 and the outer ring body 14 protrude from the top surface of the substrate 1.

[0064] With the above structure, the annular groove is protruded on the top surface of the base plate 1 to adapt to the shape of the wheel hub casting.

[0065] It is further defined that the cover plate 3 is a circular structure, and the outer edge of the cover plate 3 is provided with a fold that is folded downward and engaged with the outside of the outer ring body 14, and a plurality of connecting ears 16 are provided on the outer side of the fold.

[0066] The cover plate 3 is engaged with the outer ring body 14 through the flange 15 to improve the stability of the connection structure between the cover plate 3 and the base plate 1, wherein the support ear can be opened with a hole as a connection structure with the base plate 1.

[0067] A wheel hub processing clamping device is provided, wherein a mounting seat 17 is provided below the base plate 1 , a transmission shaft 18 extending downward is connected to the middle of the bottom surface of the base plate 1 , and the transmission shaft 18 passes through the mounting seat 17 and is rotatably connected to the mounting seat 17 .

[0068] The base plate 1 is rotatably mounted on the mounting base 17 via the transmission shaft 18. The base plate 1 can be rotated with the transmission shaft 18 as support. During the processing, the base plate 1 can be pushed to rotate, so as to facilitate the processing of the wheel hub casting fixed thereon.

[0069] Among them, the power equipment such as the motor at the bottom of the mounting seat 17 is used to drive the transmission shaft 18 to rotate, thereby improving the convenience of operation.

[0070] It is further defined that a longitudinal rotation support portion is provided between the bottom surface of the substrate 1 and the top surface of the mounting seat 17, and the longitudinal rotation support portion includes a first support ring 19 mounted on the bottom surface of the substrate 1, a second support ring 20 mounted on the top surface of the mounting seat 17, and a plurality of balls 21 provided between the first support ring 19 and the second support ring 20;

[0071] The bottom surface of the base plate 1 is provided with a first annular mounting groove 22 coaxial with the transmission shaft 18, and the first support ring 19 is installed in the first annular mounting groove 22;

[0072] A second annular mounting groove 23 coaxial with the transmission shaft 18 is provided on the top surface of the mounting seat 17 , and the second support ring 20 is installed in the second annular mounting groove 23 .

[0073] The first support ring 19 and the second support ring 20 are respectively fixed on the base plate 1 and the mounting seat 17, and serve as structural extensions of the base plate 1 and the mounting seat 17 respectively. A plurality of balls 21 located between the first support ring 19 and the second support ring 20 constitute a longitudinal bearing structure. When the base plate 1 rotates, the rotational friction between the two can be reduced by the rolling of the plurality of balls 21.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A wheel hub processing clamping mechanism, characterized by: It comprises a base plate, the top surface of which is provided with an annular groove, and the annular groove is provided with a plurality of positioning columns for matching with the bolt holes of the wheel hub casting; A cover plate is provided on the top surface of the substrate, the cover plate is detachably fixedly connected to the substrate, and the cover plate is provided with a plurality of through holes distributed in an annular pattern with the center of the annular groove as the center. The plurality of through holes are divided into a plurality of hole groups, and the plurality of through holes in each hole group are evenly arranged; One end of the positioning column is slidably engaged with the annular groove, and the other end extends upward through the through hole and protrudes above the cover plate.

2. The wheel hub processing clamping mechanism according to claim 1, characterized in that: The lower end of the positioning column is connected to a sliding block, which is an arc-shaped structure. The outer arc radius of the sliding block is equal to the outer side radius of the annular groove, and the inner arc radius of the sliding block is equal to the inner side radius of the annular groove; The lower end of the positioning column is connected to the center of the top surface of the sliding block.

3. The wheel hub processing clamping mechanism according to claim 2, characterized in that: The positioning column is a threaded rod, and a mounting hole is provided in the center of the top surface of the sliding block, which penetrates along the thickness direction; A limiting groove is provided on the bottom surface of the sliding block, the limiting groove is communicated with the mounting hole, and the lower end of the threaded rod is connected to a limiting block that cooperates with the limiting groove.

4. The wheel hub processing clamping mechanism according to claim 2 or 3, characterized in that: An elastic support member is provided between every two adjacent sliding blocks, and two ends of the elastic support member respectively abut against opposite sides of the two adjacent sliding blocks.

5. The wheel hub processing clamping mechanism according to claim 4, characterized in that: The elastic support member includes a support spring and push plates installed at both ends of the support spring. The two push plates are respectively abutted against the opposite sides of two adjacent sliding blocks, and a positioning protrusion is provided on the side of the push plate facing the sliding block. A positioning groove that cooperates with the positioning protrusion is opened on the sliding block, and the positioning protrusion is inserted into the positioning groove.

6. The wheel hub processing clamping mechanism according to claim 5, characterized in that: A slot is provided on a side of the push plate facing the support spring, and the end of the support spring is inserted into the slot.

7. The wheel hub processing clamping mechanism according to claim 1, characterized in that: The annular groove is composed of an inner ring body and an outer ring body which are arranged concentrically, and both the inner ring body and the outer ring body protrude from the top surface of the substrate.

8. The wheel hub processing clamping mechanism according to claim 7, characterized in that: The cover plate is a circular structure, and the outer edge of the cover plate is provided with a fold that is folded downward and engaged with the outer ring body, and a plurality of connecting ears are provided on the outer side of the fold.

9. A wheel hub machining clamping device comprising the wheel hub machining clamping mechanism according to any one of claims 1 to 8, characterized in that: A mounting seat is provided below the base plate. A transmission shaft extending downward is connected to the middle of the bottom surface of the base plate. The transmission shaft passes through the mounting seat and is rotatably connected to the mounting seat.

10. The wheel hub processing clamping mechanism and device according to claim 9, characterized in that: A longitudinal rotation support portion is provided between the bottom surface of the base plate and the top surface of the mounting seat, and the longitudinal rotation support portion includes a first support ring mounted on the bottom surface of the base plate, a second support ring mounted on the top surface of the mounting seat, and a plurality of balls provided between the first support ring and the second support ring; The bottom surface of the base plate is provided with a first annular mounting groove coaxial with the transmission shaft, and the first support ring is installed in the first annular mounting groove; The top surface of the mounting seat is provided with a second annular mounting groove coaxial with the transmission shaft, and the second support ring is installed in the second annular mounting groove.

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