Special gauge for rapidly detecting symmetry degree of special-shaped product

Abstract

The utility model provides a special-purpose testing fixture for rapidly detecting the degree of symmetry of a special-shaped product, which comprises a base, a first cushion block, a second cushion block, a dial indicator and a spline mandrel, the first cushion block and the second cushion block are oppositely fixed on the upper surface of the base, the dial indicator is fixed on the upper surface of the first cushion block, and the spline mandrel is fixed on the upper surface of the second cushion block. The spline mandrel is fixed on the second cushion block, a special-shaped product sleeves the outer side of the spline mandrel, a detection head of the dial indicator is adjusted to be in contact with the special-shaped product, numerical values of the dial indicator when the special-shaped product is positively placed and reversely placed are respectively measured, and the difference value is taken as the symmetry degree of the special-shaped product. The device has the advantages of being simple in structure, ingenious in design, capable of improving detection accuracy, shortening detection time, improving working efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the field of symmetry detection, in particular to a special inspection tool for quickly detecting the symmetry of special-shaped products. Background Art

[0002] At present, the method for detecting the symmetry of the inner hole of the spline relative to the special-shaped product is mainly to use three-coordinate measurement. This measurement method has a long waiting time for inspection, and the processing production line needs to stop and wait for qualified inspection before production and processing can be carried out, which greatly reduces the output.

[0003] Because this phenomenon is a limitation in the measurement field, the production capacity is limited due to the long detection time in the production process. In order to solve this phenomenon, we seek a reliable measuring tool structure to solve this phenomenon in the production process.

[0004] Therefore, it is necessary to provide a new technical solution. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the utility model discloses a special inspection tool for quickly detecting the symmetry of special-shaped products. The specific technical solution is as follows:

[0006] The utility model provides a special inspection tool for quickly inspecting the symmetry of special-shaped products, comprising a base, a first cushion block, a second cushion block, a dial indicator and a spline core shaft.

[0007] The first cushion block and the second cushion block are fixed on the upper surface of the base relative to each other, the dial indicator is fixed on the upper surface of the first cushion block, and the spline mandrel is fixed on the second cushion block.

[0008] The special-shaped product is sleeved on the outside of the spline core shaft, and the detection head of the dial indicator is adjusted to contact the special-shaped product. The dial indicator values ​​of the special-shaped product when placed upright and inverted are measured respectively, and the difference is taken as the symmetry of the special-shaped product.

[0009] Furthermore, a stepped hole is provided at the bottom of the base corresponding to the position of the first pad, and a first fastening screw is provided in the stepped hole. The first fastening screw passes through the stepped hole, extends into the bottom of the first pad, and is threadedly connected and fixed to the first pad.

[0010] Furthermore, a connecting groove is provided on the upper surface of the first cushion block in the direction toward the second cushion block, and a connecting protrusion is provided on the lower surface of the dial indicator, and the connecting protrusion and the connecting groove are matched and engaged.

[0011] Furthermore, the connecting groove passes through the upper surface of the first cushion block to facilitate the entry and exit of the dial indicator.

[0012] Furthermore, a fixing groove matching the spline shape is provided on the upper surface of the second pad, a first through hole penetrating downwardly through the second pad is provided in the middle of the fixing groove, a second through hole of the same size and shape is provided on the base at a position corresponding to the first through hole on the second pad, the second through hole penetrates the base along the extension direction of the first through hole, the spline portion of the spline core shaft is fixed in the fixing groove, and the handle of the spline core shaft extends downwardly into the base and is fixed to the base.

[0013] Furthermore, a fixing hole connected to the second through hole is provided on the side of the base, a second fastening screw is provided in the fixing hole, the second fastening screw is threadedly connected to the fixing hole and the second fastening screw contacts and is fixed to the shank of the spline core shaft.

[0014] The utility model has the following beneficial effects:

[0015] 1. The special inspection tool for quickly detecting the symmetry of special-shaped products provided by the utility model has a simple structure and ingenious design, and is easy to manufacture and promote.

[0016] 2. The special inspection tool for quickly detecting the symmetry of special-shaped products provided by the utility model shortens the time for detecting the symmetry of special-shaped products, improves the accuracy of detecting the symmetry, and improves the overall production efficiency.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a special inspection tool for quickly inspecting the symmetry of special-shaped products provided by an embodiment of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the first cushion block provided in an embodiment of the utility model.

[0021] Figure 3 It is a structural schematic diagram of a spline core shaft provided by an embodiment of the utility model.

[0022] Figure 4It is a structural schematic diagram of a special-shaped product provided by an embodiment of the utility model.

[0023] The reference numerals are: a base 10 , a first cushion block 20 , a second cushion block 30 , a dial indicator 40 , a spline core shaft 50 , a first fastening screw 11 , and a second fastening screw 12 . DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a special inspection tool for quickly detecting the symmetry of special-shaped products. Figures 1 to 4 , which comprises a base 10, a first cushion block 20, a second cushion block 30, a dial indicator 40 and a spline mandrel 50. The first cushion block 20 and the second cushion block 30 are fixed to the upper surface of the base 10 relative to each other, the dial indicator 40 is fixed to the upper surface of the first cushion block 20, the spline mandrel 50 is fixed to the second cushion block 30, the special-shaped product is sleeved on the outer side of the spline mandrel 50, the detection head of the dial indicator 40 is adjusted to contact the special-shaped product, and the values ​​of the dial indicator 40 when the special-shaped product is placed upright and inverted are measured respectively, and the difference is taken as the symmetry of the special-shaped product.

[0028] In one embodiment, a stepped hole is provided at the bottom of the base 10 corresponding to the position of the first cushion block 20, and a first fastening screw 11 is provided in the stepped hole. The first fastening screw 11 passes through the stepped hole and extends into the bottom of the first cushion block 20 and is threadedly connected and fixed to the first cushion block 20.

[0029] In one embodiment, a connecting groove 21 is provided on the upper surface of the first cushion block 20 in a direction toward the second cushion block 30 , and a connecting protrusion is provided on the lower surface of the dial indicator 40 , and the connecting protrusion is matched and engaged with the connecting groove 21 .

[0030] The connecting groove 21 passes through the upper surface of the first cushion block 20 to facilitate the entry and exit of the dial indicator 40 .

[0031] In one embodiment, a fixing groove matching the spline shape is provided on the upper surface of the second cushion block 30, a first through hole penetrating downwardly through the second cushion block 30 is provided in the middle of the fixing groove, a second through hole of the same size and shape is provided at a position corresponding to the first through hole on the second cushion block 30 on the base 10, the second through hole penetrates the base 10 along the extension direction of the first through hole, the spline portion of the spline core shaft 50 is fixed in the fixing groove, and the handle of the spline core shaft 50 extends downwardly into the base 10 and is fixed to the base 10.

[0032] A fixing hole connected to the second through hole is provided on the side of the base 10, and a second fastening screw 12 is provided in the fixing hole. The second fastening screw 12 is threadedly connected to the fixing hole and the second fastening screw 12 contacts and is fixed to the shank of the spline core shaft 50.

[0033] The working principle of the utility model is: first fix the first cushion block on the base, and then slide the dial indicator to the first cushion block. The handle of the spline mandrel is inserted into the second through hole of the base through the second cushion block, and then the spline mandrel is fixed with a second fastening screw. The special-shaped product is placed on the spline mandrel, and the dial indicator is adjusted to the point where the probe head contacts the special-shaped product, and the first value is measured. Then, the special-shaped product is taken out and the top and bottom are turned over and placed in the spline mandrel, and the second value of the dial indicator is measured, and the difference between the two values ​​is taken as the symmetry of the special-shaped product.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer 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 may combine and combine different embodiments or examples described in this specification.

[0035] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify and vary the above embodiments within the scope of the present invention.

Claims

1. A special inspection tool for quickly detecting the symmetry of special-shaped products, characterized in that: It includes a base, a first cushion block, a second cushion block, a dial indicator and a spline mandrel. The first cushion block and the second cushion block are fixed on the upper surface of the base relative to each other, the dial indicator is fixed on the upper surface of the first cushion block, and the spline mandrel is fixed on the second cushion block. The special-shaped product is sleeved on the outside of the spline core shaft, and the detection head of the dial indicator is adjusted to contact the special-shaped product. The dial indicator values ​​of the special-shaped product when it is placed upright and inverted are measured respectively, and the difference is taken as the symmetry of the special-shaped product.

2. The special inspection tool for quickly detecting the symmetry of special-shaped products according to claim 1 is characterized in that: A stepped hole is provided at the bottom of the base corresponding to the position of the first cushion block, a first fastening screw is provided in the stepped hole, and the first fastening screw passes through the stepped hole and extends into the bottom of the first cushion block to be threadedly connected and fixed to the first cushion block.

3. The special inspection tool for quickly detecting the symmetry of special-shaped products according to claim 2 is characterized in that: A connecting groove is arranged on the upper surface of the first cushion block in the direction toward the second cushion block, and a connecting protrusion is arranged on the lower surface of the dial indicator, and the connecting protrusion is matched and engaged with the connecting groove.

4. The special inspection tool for quickly detecting the symmetry of special-shaped products according to claim 3 is characterized in that: The connecting groove passes through the upper surface of the first cushion block, so as to facilitate the entry and exit of the dial indicator.

5. The special inspection tool for quickly detecting the symmetry of special-shaped products according to claim 1 is characterized in that: The upper surface of the second pad is provided with a fixing groove matching the spline shape, and a first through hole is provided in the middle of the fixing groove and penetrates downwardly through the second pad; the base is provided with a second through hole of the same size and shape at a position corresponding to the first through hole on the second pad, and the second through hole penetrates the base along the extension direction of the first through hole; the spline portion of the spline core shaft is fixed in the fixing groove, and the handle of the spline core shaft extends downward into the base and is fixed to the base.

6. The special inspection tool for quickly detecting the symmetry of special-shaped products according to claim 5 is characterized in that: A fixing hole is provided on the side of the base and connected to the second through hole. A second fastening screw is provided in the fixing hole. The second fastening screw is threadedly connected to the fixing hole and the second fastening screw contacts and is fixed to the shank of the spline core shaft.

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