Powder metallurgy hub center hole torque testing device

Abstract

The utility model discloses a powder metallurgy hub center hole torque testing device which comprises a base, a fixing block, a lifting mechanism and a torque testing core rod. The base is provided with an accommodating groove along the axial direction; the fixing block is provided with a containing groove, the shape of the fixing block is matched with that of the containing groove so that the fixing block can be limited in the containing groove, a limiting hole is formed in the fixing block, and the shape of the limiting hole is matched with that of the powder metallurgy hub so that the powder metallurgy hub can be limited by the limiting hole; the lifting mechanism is arranged between the base and the fixing block and can drive the fixing block and the powder metallurgy hub to move in a lifting mode. The torque testing core rod is inserted and limited in a center hole of the powder metallurgy hub, and the torque testing core rod is connected with a torque wrench. According to the utility model, the inspection efficiency can be improved, the inspection operation difficulty is reduced, and the inspection accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of torque inspection devices, and particularly relates to a torque inspection device for the central hole of a powder metallurgy wheel hub. Background Art

[0002] The powder metallurgy wheel hub is an important accessory in the automotive water pump components. The wheel hub is provided with a central hole of the wheel hub. The central hole of the wheel hub cooperates with the bearing to drive the impeller to rotate, providing a guarantee for the engine cooling cycle. Among them, the torque of the central hole of the wheel hub is particularly important as an important characteristic for the control of the wheel hub. In the prior art, when inspecting the torque of the central hole of the wheel hub, the powder metallurgy wheel hub is directly clamped on the chuck. During the process, the product is extruded, affecting the inspection accuracy, and the clamping process is cumbersome. Moreover, the shapes of powder metallurgy wheel hubs are various, including cylinders, cubes, triangular prisms, etc., and the inspection of the central hole torque is cumbersome.

[0003] In view of this, the utility model develops a torque inspection device for the central hole of a powder metallurgy wheel hub that overcomes the above-mentioned defects in the inspection of the central hole torque, and this case is thus generated. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the above technologies to some extent. For this purpose, an object of the utility model is to provide a torque inspection device for the central hole of a powder metallurgy wheel hub to improve the inspection efficiency, reduce the difficulty of inspection operation, and ensure the inspection accuracy.

[0005] To achieve the above object, the first aspect embodiment of the utility model provides a torque inspection device for the central hole of a powder metallurgy wheel hub, including:

[0006] A base, the base is axially provided with a receiving groove;

[0007] A fixing block, the shape of the fixing block matches the receiving groove, so that the fixing block can be limited in the receiving groove. The fixing block is provided with a limiting hole, and the shape of the limiting hole matches the powder metallurgy wheel hub, so that the limiting hole can limit the powder metallurgy wheel hub;

[0008] A lifting mechanism, the lifting mechanism is arranged between the base and the fixing block, and the lifting mechanism can drive the fixing block to move up and down together with the powder metallurgy wheel hub;

[0009] A torque inspection mandrel, the torque inspection mandrel is inserted into and limited in the central hole of the powder metallurgy wheel hub, and the torque inspection mandrel is connected to a torque wrench.

[0010] A torque inspection device for the central hole of a powder metallurgy wheel hub according to an embodiment of the present utility model. When inspecting the torque of the central hole of the powder metallurgy wheel hub, the fixing block is placed in the accommodating groove of the base, then the powder metallurgy wheel hub is placed in the limiting hole of the fixing block, and then the torque inspection mandrel is inserted into and limited in the central hole of the powder metallurgy wheel hub. The lifting mechanism lifts the fixing block together with the powder metallurgy wheel hub to a suitable inspection position, and the torque wrench is connected to the torque inspection mandrel to inspect the torque of the central hole of the powder metallurgy wheel hub, thereby improving the inspection efficiency, reducing the difficulty of inspection operation, and ensuring the inspection accuracy. At the same time, the fixing block with different-shaped limiting holes can be replaced to be applicable to different-shaped powder metallurgy wheel hubs, improving the applicability and inspection efficiency of the inspection.

[0011] In addition, a torque inspection device for the central hole of a powder metallurgy wheel hub according to the above embodiment of the present utility model may further have the following additional technical features:

[0012] Optionally, the lifting mechanism includes a height adjustment block and a height adjustment screw. The height adjustment block is arranged at the bottom of the accommodating groove of the base, and the base is provided with a threaded hole communicating with the accommodating groove; the height adjustment screw is threadedly connected with the threaded hole, and the upper end of the height adjustment screw abuts against the height adjustment block.

[0013] Specifically, it further includes a height adjustment handle, and the height adjustment handle is connected to the lower end of the height adjustment screw.

[0014] Specifically, the height adjustment block includes a limiting portion and a sliding portion. The diameter of the limiting portion is larger than that of the sliding portion, so that the longitudinal section of the height adjustment block is in a T shape; a limiting groove matching the shape of the limiting portion is provided at the bottom of the accommodating groove of the base, and a sliding hole for the sliding portion to slide is provided at the center position of the limiting groove, and the sliding hole communicates with the threaded hole.

[0015] Optionally, the accommodating groove of the base is set to be square to limit a square fixing block.

[0016] Optionally, the limiting hole of the fixing block is set to be a circular hole with teeth on the side wall, or a square hole, or a triangular hole. Description of the Drawings

[0017] Figure 1 is a cross-sectional view of an embodiment of the present utility model;

[0018] Figure 2 is a three-dimensional exploded view of an embodiment of the present utility model;

[0019] Figures 3 to 5 is a structural schematic diagram of different fixing blocks of an embodiment of the present utility model.

[0020] Description of Reference Numerals

[0021] Base 1, receiving groove 11, threaded hole 12, limiting groove 13, sliding hole 14, fixing block 2, limiting hole 21, lifting mechanism 3, height adjusting block 31, limiting portion 311, sliding portion 312, height adjusting screw rod 32, height adjusting handle 33, torque inspection mandrel 4, powder metallurgy hub 5 Detailed Implementation Manner

[0022] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0023] In order to better understand the above technical solution, the exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0024] As Figures 1 to 5 shown, a torque inspection device for the center hole of a powder metallurgy hub according to an embodiment of the present invention includes a base 1, a fixing block 2, a lifting mechanism 3, and a torque inspection mandrel 4.

[0025] The base 1 is provided with a receiving groove 11 along the axial direction. Optionally, the receiving groove 11 of the base 1 is set to be square to limit the square fixing block 2, so that when the square fixing block 2 is placed in the square receiving groove 11, it will not slide relative to each other.

[0026] The shape of the fixing block 2 matches the receiving groove 11, so that the fixing block 2 can be limited within the receiving groove 11. Optionally, the fixing block 2 is square to match the square receiving groove 11, so that when the square fixing block 2 is placed in the square receiving groove 11, it will not slide relative to each other. The fixing block 2 is provided with a limiting hole 21, and the shape of the limiting hole 21 matches the powder metallurgy hub 5, so that the limiting hole 21 can limit the powder metallurgy hub 5.

[0027] Optionally, the limiting hole 21 of the fixing block 2 is set to be a circular hole with teeth on the side wall, as Figure 2 and Figure 3 shown; or the limiting hole 21 of the fixing block 2 is set to be a square hole, as Figure 4 shown; or the limiting hole 21 of the fixing block 2 is set to be a triangular hole, asFigure 5 As shown. The shape of the limiting hole 21 matches that of the powder metallurgy hub 5, aiming to prevent the powder metallurgy hub 5 and the fixing block 2 from rotating relative to each other. By replacing the fixing block 2 with a limiting hole 21 of different shapes, the center hole torque inspection of powder metallurgy hubs 5 of different shapes can be realized, reducing the operation difficulty to ensure the inspection accuracy, inspecting various powder metallurgy hubs, and improving the inspection efficiency.

[0028] The lifting mechanism 3 is arranged between the base 1 and the fixing block 2. The lifting mechanism 3 can drive the fixing block 2 to drive the powder metallurgy hub 5 to move up and down so as to be lifted to a suitable position for inspection.

[0029] Optionally, the lifting mechanism 3 includes a height adjustment block 31, a height adjustment screw 32 and a height adjustment handle 33. The height adjustment block 31 is arranged at the bottom of the accommodation groove 11 of the base 1, and the base 1 is provided with a threaded hole 12 communicating with the accommodation groove 11; the height adjustment screw 32 is threadedly connected with the threaded hole 12, and the upper end of the height adjustment screw 32 abuts against the height adjustment block 31. The height adjustment block 31 abuts against the fixing block 2 and / or the powder metallurgy hub 5. The height adjustment handle 33 is connected to the lower end of the height adjustment screw 32. By rotating the height adjustment screw 32 with the height adjustment handle 33, the height adjustment screw 32 is driven to move up and down, pushing the powder metallurgy hub 5 to move up and down so as to be adjusted to a suitable position for inspection.

[0030] Specifically, the height adjustment block 31 includes a limiting part 311 and a sliding part 312. The diameter of the limiting part 311 is larger than that of the sliding part 312, so that the longitudinal section of the height adjustment block 31 is in a T shape; the bottom of the accommodation groove 11 of the base 1 is provided with a limiting groove 13 whose shape matches that of the limiting part 311, and a sliding hole 14 for the sliding part 312 to slide is arranged at the central position of the limiting groove 13, and the sliding hole 14 communicates with the threaded hole 12.

[0031] The torque inspection mandrel 4 is inserted into and limited in the center hole of the powder metallurgy hub 5, that is, the torque inspection mandrel 4 is inserted into the center hole of the powder metallurgy hub 5 and cannot rotate relative to it. The torque inspection mandrel 4 is connected to a torque wrench to inspect the center hole torque of the powder metallurgy hub.

[0032] When conducting the torque inspection on the central hole of the powder metallurgy wheel hub 5, place the fixing block 2 in the accommodating groove 11 of the base 1, then place the powder metallurgy wheel hub 5 in the limiting hole 21 of the fixing block 2. Then insert the torque inspection mandrel 4 and limit it in the central hole of the powder metallurgy wheel hub 5. The lifting mechanism 3 lifts the fixing block 2 together with the powder metallurgy wheel hub 4 to a suitable position for inspection. The torque wrench is connected to the torque inspection mandrel 4 to inspect the torque of the central hole of the powder metallurgy wheel hub 4, thereby improving the inspection efficiency, reducing the difficulty of inspection operation, and ensuring the inspection accuracy. At the same time, the fixing block 2 with different-shaped limiting holes 21 can be replaced to be applicable to powder metallurgy wheel hubs 5 with different shapes, improving the applicability and inspection efficiency of the inspection.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, 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. Therefore, it should not be construed as a limitation to the present invention.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0035] In the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0038] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A torque inspection device for the central hole of a powder metallurgy wheel hub, characterized in that, Comprising: A base, the base is provided with a receiving groove along the axial direction; A fixing block, the shape of the fixing block matches the receiving groove, so that the fixing block can be limited within the receiving groove, a limiting hole is provided on the fixing block, and the shape of the limiting hole matches the powder metallurgy wheel hub, so that the limiting hole can limit the powder metallurgy wheel hub; A lifting mechanism, the lifting mechanism is arranged between the base and the fixing block, and the lifting mechanism can drive the fixing block to drive the powder metallurgy wheel hub to move up and down; A torque inspection mandrel, the torque inspection mandrel is inserted into and limited in the central hole of the powder metallurgy wheel hub, and the torque inspection mandrel is connected to a torque wrench.

2. The powder metallurgy hub center hole torque inspection device according to claim 1, wherein, The lifting mechanism includes a height adjustment block and a height adjustment screw, the height adjustment block is arranged at the bottom of the receiving groove of the base, and the base is provided with a threaded hole communicating with the receiving groove; the height adjustment screw is threadedly connected to the threaded hole, and the upper end of the height adjustment screw abuts against the height adjustment block.

3. The torque inspection device for the center hole of a powder metallurgy wheel hub according to claim 2, wherein It further includes a height adjustment handle, and the height adjustment handle is connected to the lower end of the height adjustment screw.

4. The torque inspection device for the center hole of a powder metallurgy wheel hub according to claim 2, characterized in that The height adjustment block includes a limiting part and a sliding part, the diameter of the limiting part is larger than the diameter of the sliding part, so that the longitudinal section of the height adjustment block is T-shaped; a limiting groove matching the shape of the limiting part is provided at the bottom of the receiving groove of the base, and a sliding hole for the sliding part to slide is provided at the central position of the limiting groove, and the sliding hole communicates with the threaded hole.

5. The torque inspection device for the center hole of a powder metallurgy wheel hub according to claim 1, characterized in that, The receiving groove of the base is set to be square to limit the square fixing block.

6. The torque inspection device for the center hole of a powder metallurgy wheel hub according to claim 1, characterized in that The limiting hole of the fixing block is set to be a circular hole with teeth on the side wall, or a square hole, or a triangular hole.

Images