Positioning tool for hub drilling machining

Abstract

The utility model belongs to the technical field of hub machining equipment, and particularly relates to a hub drilling machining positioning tool which comprises an installation assembly and a positioning assembly, the installation assembly comprises an installation block and a connecting block, the connecting block is arranged on the upper surface of the installation block, an installation hole used for fixing the installation block is formed in the installation block, and the positioning assembly is arranged in the installation hole. A positioning assembly is arranged on the connecting block; the positioning assembly comprises a positioning rod, the positioning rod is vertically arranged on the connecting block, the positioning rod is sleeved with a positioning taper sleeve, and the positioning taper sleeve is in sliding connection with the positioning rod. The positioning assembly is fixed to the mounting block through the connecting block, the positioning assembly is fixed to a machining platform at the drilling machining position through the mounting block, the positioning taper sleeve is clamped between spokes of a hub, the two spokes are positioned, then the machining faces of the spokes are positioned, and the drilling precision is improved; and the influence of axial deformation generated in the hot working stage of the hub blank on drilling positioning is reduced, and the qualified rate of products is increased.

Description

Technical Field

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

[0002] The wheel hub is an important component of the automobile. Currently, most wheel hubs are aluminum alloy hubs, which are formed by spinning the hub blank after heat treatment. After forming, holes need to be drilled on the spokes of the hub. The blank will produce axial deformation after heat treatment and spinning, and the deformation size of each blank is inconsistent, which causes the drilling surface to shift and eventually produces positioning deviation, resulting in product scrapping during drilling and a low product qualification rate. In addition, the hub is round, the clamping positioning is unstable, and the hub is prone to shifting.

[0003] In view of the above problems, the utility model document proposes a positioning tool for wheel hub drilling processing. Utility Model Content

[0004] The utility model provides a tooling for positioning hub drilling processing, which improves the stability of hub clamping, ensures product processing accuracy, reduces the labor intensity of workers, improves processing efficiency, and ensures the safety of workers at work.

[0005] The utility model provides the following technical solutions:

[0006] A tooling for positioning hub drilling processing comprises a mounting assembly and a positioning assembly, wherein the mounting assembly comprises a mounting block and a connecting block, wherein the connecting block is arranged on the upper surface of the mounting block, the mounting block is provided with a mounting hole for fixing the mounting block, and the connecting block is provided with a positioning assembly; the positioning assembly comprises a positioning rod, the positioning rod is vertically arranged on the connecting block, a positioning cone sleeve is sleeved on the positioning rod, and the positioning cone sleeve is slidably connected to the positioning rod.

[0007] Furthermore, a compression spring is sleeved on the positioning cone sleeve, and the compression spring is located between the positioning cone sleeve and the connecting block.

[0008] Furthermore, a limiting component is provided at the top of the positioning rod, and the limiting component is a limiting nut. The top side wall of the positioning rod is provided with an external thread, and the limiting nut is threadedly connected to the positioning rod.

[0009] Furthermore, the top diameter of the positioning cone sleeve is smaller than the bottom diameter, and the diameter of the limiting nut is smaller than or equal to the top diameter of the positioning cone sleeve.

[0010] Furthermore, threaded connection holes are provided at corresponding positions of the connection block and the mounting block, and the connection block and the mounting block are connected and fixed by means of the threaded connection holes and bolts.

[0011] Furthermore, the mounting hole on the mounting block is a strip-shaped hole, a countersunk bolt is arranged in the strip-shaped hole, and the mounting block is fixed at the processing position by the countersunk bolt and the strip-shaped hole.

[0012] Furthermore, the top end of the compression spring abuts against the bottom surface of the positioning cone sleeve, and the bottom end is fixed on the connecting block.

[0013] In the utility model, the positioning component is fixed on the mounting block by a connecting block, and the positioning component is fixed on a processing platform at a drilling processing position by the mounting block, and the positioning cone sleeve is clamped between the spokes of the hub to position two spokes, and then the processing surface of the spoke is positioned, thereby improving the drilling accuracy, reducing the influence of the axial deformation of the hub blank produced in the hot processing stage on the drilling positioning, and improving the qualified rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a structural positioning tool for hub drilling provided by an embodiment of the utility model;

[0015] Figure 2 The present invention is a schematic structural diagram of a positioning tool for wheel hub drilling provided by another embodiment of the present invention.

[0016] Reference numerals:

[0017] 1. Mounting block; 101. Mounting hole; 102. Countersunk bolt; 2. Connecting block; 3. Positioning rod; 4. Positioning cone sleeve; 5. Compression spring; 6. External thread; 7. Limit nut. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] In the description of the embodiments of the present utility model, 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, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, 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 utility model, 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 utility model.

[0020] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0021] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0022] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0023] Embodiment 1:

[0024] Reference Figure 1 As shown, a tooling for positioning hub drilling processing includes a mounting assembly and a positioning assembly, the mounting assembly includes a mounting block 1 and a connecting block 2, the connecting block 2 is arranged on the upper surface of the mounting block 1, the mounting block 1 is provided with a mounting hole 101 for fixing the mounting block 1, and the connecting block 2 is provided with a positioning assembly; the positioning assembly includes a positioning rod 3, the positioning rod 3 is vertically arranged on the connecting block 2, the positioning rod 3 is sleeved with a positioning cone sleeve 4, and the positioning cone sleeve 4 is slidably connected to the positioning rod 3.

[0025] The positioning assembly is arranged on the connecting block 2, and the positioning assembly is arranged on the mounting block 1 through the connecting block 2. The mounting block 1 is fixed to the processing platform of the drilling equipment through the mounting hole 101 and the bolts, and then the positioning assembly is fixed to the processing platform of the drilling equipment. By adjusting the gap between adjacent spokes of the hub, the hub is placed on the positioning cone sleeve 4, so that the positioning cone sleeve 4 positions the spokes, and then the processing surface of the spokes is positioned.

[0026] A compression spring 5 is also sleeved on the positioning cone sleeve 4 , and the compression spring 5 is located between the positioning cone sleeve 4 and the connecting block 2 .

[0027] The positioning cone sleeve 4 is supported by the compression spring 5 and pressed against the spokes of the wheel hub, thereby improving the stability of the positioning of the wheel hub spokes, thereby ensuring the drilling accuracy on the spoke processing surface, ensuring product quality, and improving the product qualification rate.

[0028] The top diameter of the positioning cone sleeve 4 is smaller than the bottom diameter, so that the positioning cone sleeve 4 can be stuck in the gap between the spokes of the wheel hub; the diameter of the limiting nut 7 is smaller than or equal to the top diameter of the positioning cone sleeve 4, preventing the limiting nut 7 from affecting the normal use of the positioning cone sleeve 4 and ensuring that the positioning cone sleeve 4 can be inserted into the gap between the spokes to position the spokes.

[0029] Threaded connection holes are provided at corresponding positions of the connection block 2 and the mounting block 1 , and the connection block 2 and the mounting block 1 are connected and fixed by means of the threaded connection holes and bolts.

[0030] The threaded connecting block 2 is used to connect the connecting block 2 and the mounting block 1 by bolts, which is convenient for assembling the positioning tool. At the same time, after the position of the mounting block 1 on the drilling processing platform is determined, if the positioning component needs to be replaced, it is only necessary to separate the connecting block 2 from the mounting block 1 and then replace it, without adjusting the position of the mounting block 1 again, thereby improving the adaptability of the positioning tool.

[0031] The mounting hole 101 on the mounting block 1 is a strip-shaped hole, in which a countersunk bolt 102 is arranged, and the mounting block 1 is fixed at a processing position by the countersunk bolt 102 cooperating with the strip-shaped hole.

[0032] The mounting hole 101 is a strip hole, which can adjust the mounting position of the mounting block 1 on the drilling processing platform, and then adjust the position of the connecting block 2, thereby adjusting the position of the positioning assembly, ensuring that the positioning cone sleeve 4 can be inserted into the gap between the two spokes of the hub, and the contact surface between the positioning cone sleeve 4 and the spoke is stable. The countersunk bolt 102 is used to avoid affecting the installation of the connecting block 2.

[0033] The top end of the compression spring 5 abuts against the bottom surface of the positioning cone sleeve 4 , and the bottom end is fixed on the connecting block 2 .

[0034] This prevents the compression spring 5 from falling off the connecting block 2 , and reduces the impact force of the compression spring 5 on the positioning cone sleeve 4 when the wheel hub is removed from the positioning fixture, thereby increasing the service life of the positioning cone sleeve 4 .

[0035] Embodiment 2:

[0036] Reference Figure 2 As shown, a limiting component is also provided on the top of the positioning rod 3 , and the limiting component is a limiting nut 7 . An external thread 6 is formed on the side wall at the top end of the positioning rod 3 , and the limiting nut 7 is threadedly connected to the positioning rod 3 .

[0037] The limiting assembly is used to prevent the positioning cone sleeve 4 from falling off from the positioning rod 3, the wheel hub is pressed against the positioning cone sleeve 4, the compression spring 5 contracts, and the elastic force of the compression spring 5 presses the positioning cone sleeve 4 against the wheel hub. When the wheel hub is removed, the positioning cone sleeve 4 moves upward under the elastic force of the compression spring 5, and the positioning cone sleeve 4 is limited from falling off by the limiting nut 7 to prevent the positioning cone sleeve 4 from flying out and causing harm to the workers.

[0038] When in use, two sets of positioning tools are installed on the drilling processing platform. The two sets of positioning tools can prevent the wheel hub from rotating under force, thereby ensuring normal operation of wheel hub drilling.

[0039] Fix the mounting block 1 on the drilling processing platform with the countersunk bolts 102, then install the connecting block 2 on the mounting block 1 with the bolts, then sequentially sleeve the spring and the positioning sleeve on the positioning rod 3, and finally press the limiting nut 7 on the top of the positioning rod 3. During processing, place the wheel hub on the drilling processing platform, the gap between adjacent spokes of the wheel hub corresponds to the positioning tooling, so that the positioning cone sleeve 4 is inserted into the gap, and the side of the spoke rests on the side wall of the positioning cone sleeve 4, and the positioning of the wheel hub is completed.

[0040] In actual use, the positioning cone sleeve 4 is made of metal to ensure the stability of the hub spoke support structure and the positioning accuracy.

[0041] The bottom end of the positioning rod 3 is also provided with a thread, and a threaded hole is provided on the connecting block 2. The positioning rod 3 is threadedly connected to the connecting block 2, so as to facilitate the disassembly and assembly of the positioning tool.

[0042] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A positioning tool for wheel hub drilling processing, It is characterized in that It includes an installation component and a positioning component, the installation component includes a mounting block and a connecting block, the connecting block is arranged on the upper surface of the installation block, the installation block is provided with a mounting hole for fixing the installation block, and the connecting block is provided with a positioning component; the positioning component includes a positioning rod, the positioning rod is vertically arranged on the connecting block, a positioning cone sleeve is sleeved on the positioning rod, and the positioning cone sleeve is slidably connected to the positioning rod.

2. A positioning tool for wheel hub drilling according to claim 1, It is characterized in that A compression spring is also sleeved on the positioning cone sleeve, and the compression spring is located between the positioning cone sleeve and the connecting block.

3. A positioning tool for wheel hub drilling according to claim 2, It is characterized in that A limiting component is also provided on the top of the positioning rod. The limiting component is a limiting nut. An external thread is formed on the side wall of the top end of the positioning rod. The limiting nut is threadedly connected to the positioning rod.

4. A positioning tool for wheel hub drilling according to claim 3, It is characterized in that The top diameter of the positioning cone sleeve is smaller than the bottom diameter, and the diameter of the limiting nut is smaller than or equal to the top diameter of the positioning cone sleeve.

5. A positioning tool for wheel hub drilling according to claim 4, It is characterized in that Threaded connection holes are provided at corresponding positions of the connection block and the mounting block, and the connection block and the mounting block are connected and fixed by means of the threaded connection holes and bolts.

6. A positioning tool for wheel hub drilling according to claim 5, It is characterized in that The mounting hole on the mounting block is a strip hole, a countersunk bolt is arranged in the strip hole, and the mounting block is fixed at the processing position by the countersunk bolt and the strip hole.

7. A positioning tool for wheel hub drilling according to claim 6, It is characterized in that The top end of the compression spring abuts against the bottom surface of the positioning cone sleeve, and the bottom end is fixed on the connecting block.

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