Split type wheel hub assembly tool

Abstract

The utility model discloses a split type wheel hub assembly tool, including clamping block, it is equipped with two at least, and the first support surface is provided with to the side top of clamping block along the sliding direction, and drive structure is connected with the movable end and clamping block for driving clamping block movement, wherein, the outer border of first support surface is arc structure, and several clamping blocks all slide to the center position of arc structure. This split type wheel hub assembly tool, when positioning, relies on the first locating surface and the second locating surface on the clamping block and interoperate, realizes accurate positioning to the rim, and the second support surface of lower positioning mode supports the rim, and the second locating surface carries out the coarse positioning to the spoke, effectively guarantees the coaxial degree of rim and spoke, and drive structure promotes clamping block to move along the slide rail, and the outer circle of work piece is attached to the force, provides uniform support and positioning for the rim, so that can realize reliable clamping to work piece according to the need.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts manufacturing, and in particular to a split-type wheel hub assembly fixture. Background Technology

[0002] In existing split-type wheel hub assembly processes, the installation of the rim and spokes relies on a simple positioning structure, which can easily lead to misalignment during assembly. This requires further adjustments, thus affecting production efficiency. Furthermore, during the press pressing process, the rim and spokes are installed by applying pressure through an upper die. At this time, the rim's sidewall slope lacks sufficient support, relying mainly on the structural strength of the rim's sidewall for support. This can easily cause slight deformation of the rim's structure in the pressing direction, affecting the part's geometric dimensions and assembly quality, and consequently impacting the overall product quality. Utility Model Content

[0003] In view of the problems existing in the above-mentioned split-type wheel hub assembly tooling, this utility model is proposed.

[0004] Therefore, one of the objectives of this utility model is to provide a split-type wheel hub assembly fixture, which aims to solve the problem of wheel hubs being easily deformed under pressure by using contour clamping.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including,

[0006] The clamping blocks, having at least two, each having a first support surface on its top side along the sliding direction; and,

[0007] The driving structure has its movable end connected to the clamping block and is used to drive the movement of the clamping block;

[0008] The outer edge of the first support surface has an arc-shaped structure, and all of the clamping blocks slide toward the center of the arc-shaped structure.

[0009] In a preferred embodiment of the positioning structure described in this utility model, the cross-sectional shape of the first support surface is arc-shaped or straight-shaped.

[0010] In a preferred embodiment of the positioning structure described in this utility model, the clamping block has a first positioning surface formed on its sidewall along the sliding direction, and the first positioning surface is arc-shaped.

[0011] As a preferred embodiment of the positioning structure described in this utility model, it further includes:

[0012] The lower positioning mold has an upper surface that serves as a second support surface, and the top of the second support surface supports the workpiece.

[0013] The upper die is fixed to the upper platen of the press.

[0014] The limit stop is set on the motion path of the drive structure.

[0015] In a preferred embodiment of the positioning structure described in this utility model, a protrusion is provided on the lower positioning mold, and a second positioning surface is formed on the outer circumferential surface of the protrusion, the second positioning surface being perpendicular to the second support surface;

[0016] A central column is provided at the center of the lower positioning mold, and a third positioning surface is formed around the top of the central column.

[0017] As a preferred embodiment of the split-type wheel hub assembly fixture of this utility model, the clamping blocks are provided as two, and the two clamping blocks are symmetrically distributed on both sides of the lower positioning mold.

[0018] As a preferred embodiment of the split-type wheel hub assembly fixture of this utility model, the clamping block is an arc-shaped clamping block, and multiple of them are provided and evenly distributed along the ring.

[0019] As a preferred embodiment of the split-type wheel hub assembly fixture of this utility model, the bottom of the lower positioning mold is connected to a fixture base plate, and the bottom of the fixture base plate is provided with a plurality of fixture feet.

[0020] As a preferred embodiment of the split-type wheel hub assembly fixture of this utility model, the drive structure is provided with slide rails on both sides, and at least one set of slide rails are provided. A slider is slidably connected on the slide rail and connected to the clamping block.

[0021] As a preferred embodiment of the split-type wheel hub assembly fixture of this utility model, a power component base is provided between the fixture base plate and the drive structure, and the power component base has a rectangular structure.

[0022] The beneficial effects of this utility model are as follows: During positioning, the first positioning surface and the second positioning surface on the clamping block cooperate with each other to achieve precise positioning of the wheel rim. The second support surface of the lower positioning mold supports the wheel rim, and the second positioning surface performs coarse positioning on the wheel spokes, effectively ensuring the coaxiality of the wheel rim and the wheel spokes. The driving structure pushes the clamping block to move along the slide rail, and it fits against the outer ring of the workpiece to receive force, providing uniform support and positioning for the wheel rim, avoiding deformation during the pressing process of the press, ensuring the geometric stability of the parts, and enabling reliable clamping of the workpiece as needed. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This diagram illustrates a surface positioning method for a positioning structure.

[0025] Figure 2 A schematic diagram of a line positioning structure is shown.

[0026] Figure 3 This diagram illustrates another surface positioning method for the positioning structure.

[0027] Figure 4 A schematic diagram of the clamping block assembly in Embodiment 2 is shown;

[0028] Figure 5 A schematic diagram of the clamping block assembly in Embodiment 3 is shown;

[0029] Figure 6 A three-dimensional schematic diagram of Embodiment 2 is shown;

[0030] Figure 7 A schematic diagram of the unfolded form of Embodiment 2 is shown;

[0031] Figure 8 A half-sectional schematic diagram of Embodiment 2 is shown. Detailed Implementation

[0032] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0033] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0034] Example 1, referring to Figure 1 , Figure 2 and Figure 3This embodiment provides a split-type wheel hub assembly fixture, including clamping blocks 100, of which at least two are provided, and a first support surface 100a is provided on the top of one side of the clamping block 100 along the sliding direction; and a drive structure 200, the movable end of which is connected to the clamping block 100 for driving the clamping block 100 to move.

[0035] The outer edge of the first support surface 100a has an arc-shaped structure, and several clamping blocks 100 slide toward the center of the arc-shaped structure.

[0036] The cross-sectional shape of the first support surface 100a is arc-shaped or straight-shaped; the side wall of the clamping block 100 along the sliding direction is formed with a first positioning surface 100b, which is arc-shaped.

[0037] It also includes a lower positioning mold 300, the upper surface of which is a second support surface 100c, and the top of the second support surface 100c supports the workpiece 400; an upper pressure mold 500, which is fixed on the upper pressure plate of the press; and a limit stop 600, which is set on the movement path of the drive structure 200.

[0038] During use, the drive structure 200 is driven to push the clamping block 105 to slide relative to the slide rail 800, ensuring that the first positioning surface 100b can abut against the outer circle of the workpiece 400 (referring to the rim). The arc-shaped outer edge of the first support surface 100a is adapted to the rim to achieve reliable clamping. At this time, the first support surface 100a provides reliable support to the inclined surface of the workpiece 400, thereby providing uniform support to the workpiece 400 and avoiding deformation during the pressing process of the press.

[0039] When the cross-sectional shape of the first support surface 100a is a straight line, and when the tolerance of the workpiece 400 can ensure its reliable contact, the straight line has the largest contact area, thereby achieving the maximum support effect for the workpiece 400.

[0040] When the cross-sectional shape of the first support surface 100a is convex, when the contact surface between the workpiece 400 and the first support surface 100a cannot be matched at the tilt angle due to tolerance, its protruding part can reliably abut against the contact surface, thereby achieving reliable support.

[0041] When the cross-sectional shape of the first support surface 100a is concave, it supports the outer and inner edges of the workpiece 400, thus achieving support at two positions. This also avoids the situation where the support effect is poor when the tilt angle cannot be matched.

[0042] The first positioning surface 100b limits the outer surface of the workpiece 400, so that when the clamping block 100 clamps the workpiece 400, it can limit it to the specified position, so that the workpiece 400 can be kept on the axis of the press, thus achieving precise positioning.

[0043] Example 2, refer to Figure 4 , Figure 6 , Figure 7 and Figure 8 This is the third embodiment of the present invention. This embodiment differs from the first embodiment in that: a protrusion 301 is provided on the lower positioning mold 300, and a second positioning surface 100d is formed on the outer circumferential surface of the protrusion 301. The second positioning surface 100d is perpendicular to the second support surface 100c; a central column 302 is provided at the center of the lower positioning mold 300, and a third positioning surface 100e is formed around the top of the central column 302; two clamping blocks 100 are provided, and the two clamping blocks 100 are symmetrically distributed on both sides of the lower positioning mold 300.

[0044] The bottom of the lower positioning mold 300 is connected to a tooling base plate 700, and the bottom of the tooling base plate 700 is provided with several tooling feet 701; the two sides of the drive structure 200 are provided with slide rails 800, and at least one set is provided. A slider 801 is slidably connected on the slide rail 800 and connected to the clamping block 100; a power component base 201 is provided between the tooling base plate 700 and the drive structure 200. The power component base 201 has a rectangular structure.

[0045] During use, when installing the equipment, tooling feet 701 are installed on the bottom of both sides of the tooling base plate 700. Then, the lower positioning mold 300 is fixed on the tooling base plate 700. Then, the tooling base plate 700 is fixed on the lower die of the press through the tooling feet 701, thereby fixing the lower positioning mold 300 on the lower die of the press and fixing the upper die 500 on the upper plate of the press. A slide rail 800 is installed on the top of the tooling base plate 700, and the slider 801 is connected to each clamping block 100. The power component base 201 is fixed on the top of both sides of the tooling base plate 700. The movable end of the drive structure 200 is connected to the clamping block 100. The limit block 600 is installed on both sides of the lower positioning mold 300 and is opposite to the extension and retraction direction of the drive structure 200.

[0046] First, place the workpiece 400 on the lower positioning mold 300 so that the second positioning surface 100d on the lower positioning mold 300 can initially limit the workpiece 400.

[0047] The drive structure 200, which can be a cylinder, electric cylinder, linear motor, or other equipment, pushes the clamping block 100 to slide relative to the slide rail 800. The limit stop 600 ensures that the stroke of the drive structure 200 meets the requirements, avoiding excessive clamping force and ensuring that the first positioning surface 100b can abut against the outer circle of the workpiece 400. At this time, the first support surface 100a reliably positions and supports the inclined surface of the workpiece 400, achieving uniform support for the workpiece 400 and preventing deformation during the pressing process of the press.

[0048] Then, the spokes are inserted onto the rim above the positioned and supported rim, and coarse positioning is performed by the center post 302 of the lower positioning mold 300 to achieve coaxiality between the rim and the spokes;

[0049] Start the press, and the upper die 500 moves vertically downward to apply pressure to the top surface of the wheel spokes. Under the support of the first support surface 100a, the lower structure is prevented from deforming due to concentrated force.

[0050] After reaching the predetermined pressing stroke, maintain pressure until the rim and spokes are fully engaged and cold extrusion is achieved. After pressing is completed, the press drives the upper die 500 to return to its original position, while simultaneously driving the drive structure 200 to move. The clamping block 100 retracts along the slide rail 800 to the retracted position.

[0051] The operators remove the assembled split wheel hubs and proceed with the next steps.

[0052] Example 3, referring to Figure 5 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the clamping block 100 is an arc-shaped clamping block 101, and there are multiple of them evenly distributed along the ring.

[0053] Compared to Embodiment 2, further, multiple slide rails 800 and sliders 801 are set, and the sliders 801 are connected to the arc-shaped clamping blocks 101. Then, the driving structure 200 is fixed in the movement direction of the slide rails 800 to form a clamping structure driven by multiple driving structures 200. At this time, multiple arc-shaped clamping blocks 101 contact the outer ring of the workpiece 400 to prevent the rim from deforming during subsequent pressing. This allows different arc-shaped contour blocks 203 to be controlled for clamping as needed, dispersing the force on a single supporting contour block 200 and reducing the replacement cost after wear.

[0054] The remaining structure is the same as that in Example 2.

[0055] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0056] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A split-type wheel hub assembly fixture, characterized in that: include, At least two clamping blocks (100) are provided, and a first support surface (100a) is provided on the top of one side of each clamping block (100) along the sliding direction; and, The drive structure (200) has its movable end connected to the clamping block (100) and is used to drive the clamping block (100) to move. The outer edge of the first support surface (100a) has an arc-shaped structure, and the clamping blocks (100) slide toward the center of the arc-shaped structure.

2. The split-type wheel hub assembly fixture according to claim 1, characterized in that: The cross-sectional shape of the first support surface (100a) is arc-shaped or straight.

3. The split-type wheel hub assembly fixture according to claim 2, characterized in that: The clamping block (100) has a first positioning surface (100b) formed on its sidewall along the sliding direction, and the first positioning surface (100b) is arc-shaped.

4. The split-type wheel hub assembly fixture according to claim 2 or 3, characterized in that: It also includes, The lower positioning mold (300) has a second support surface (100c) on its upper surface, and the workpiece (400) is supported on the top of the second support surface (100c). The upper die (500) is fixed to the upper platen of the press. A limit stop (600) is provided on the motion path of the drive structure (200).

5. The split-type wheel hub assembly fixture according to claim 4, characterized in that: The lower positioning mold (300) is provided with a protrusion (301), and the outer circumferential surface of the protrusion (301) forms a second positioning surface (100d), which is perpendicular to the second support surface (100c). A central column (302) is provided at the center of the lower positioning mold (300), and a third positioning surface (100e) is formed around the top of the central column (302).

6. The split-type wheel hub assembly fixture according to claim 5, characterized in that: The clamping blocks (100) are provided in two, and the two clamping blocks (100) are symmetrically distributed on both sides of the lower positioning mold (300).

7. The split-type wheel hub assembly fixture according to claim 5, characterized in that: The clamping block (100) is an arc-shaped clamping block (101), and there are multiple of them, which are evenly distributed along the ring.

8. The split-type wheel hub assembly fixture according to any one of claims 6 or 7, characterized in that: The bottom of the lower positioning mold (300) is connected to a tooling base plate (700), and the bottom of the tooling base plate (700) is provided with a plurality of tooling feet (701).

9. The split-type wheel hub assembly fixture according to claim 8, characterized in that: The drive structure (200) is provided with slide rails (800) on both sides, and at least one set of slide rails (800) are provided. A slider (801) is slidably connected on the slide rail (800) and connected to the clamping block (100).

10. The split-type wheel hub assembly fixture according to claim 9, characterized in that: A power component base (201) is provided between the tooling base plate (700) and the drive structure (200), and the power component base (201) has a rectangular structure.

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