CN216482640U - Auxiliary measuring tool for inner cavity section length of small-hole hollow shaft - Google Patents
Auxiliary measuring tool for inner cavity section length of small-hole hollow shaft Download PDFInfo
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- CN216482640U CN216482640U CN202122379880.6U CN202122379880U CN216482640U CN 216482640 U CN216482640 U CN 216482640U CN 202122379880 U CN202122379880 U CN 202122379880U CN 216482640 U CN216482640 U CN 216482640U
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- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
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- 238000005008 domestic process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The utility model provides an auxiliary measuring tool for the length of an inner cavity section of a small-hole hollow shaft, which comprises a base, a positioning pin and a positioning block, wherein the positioning pin is fixed at the middle position of the upper part of the base, the positioning block is connected to the positioning pin through a pivot, the base is provided with a first supporting surface and a second supporting surface, the first supporting surface and the second supporting surface are respectively positioned at the left side and the right side below the positioning block, the first supporting surface is horizontally arranged, and the second supporting surface is obliquely arranged and is connected with the edge of the first supporting surface. The utility model has the advantages of convenient and quick operation, time saving, improved working efficiency, reduced production cost and the like.
Description
Technical Field
The utility model relates to the field of clamps, in particular to an auxiliary measuring tool for the length of an inner cavity section of a small-hole hollow shaft.
Background
At present, the domestic method for measuring the length of any point on the conical surface of the inner cavity of the hollow shaft with a small hole opening and a large inner hole relative to the section of the step of the outer circle comprises the following steps: the slice projection method is mainly used, and the measuring method is long in time and can increase the rejection rate of products, because the linear cutting time of the workpiece is long, and the workpiece becomes waste after being cut, so that the manufacturing cost is increased.
Because the phenomenon belongs to a limitation of the measurement field, the phenomenon is difficult to completely avoid in the production process. In order to solve the phenomenon, a reliable measuring tool structure is found to solve the phenomenon in the production process.
Therefore, there is a need to provide a new solution.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems in the prior art, the utility model discloses an auxiliary measuring tool for the length of an inner cavity section of a small-hole hollow shaft, which has the following specific technical scheme:
the utility model provides an auxiliary measuring tool for the length of an inner cavity section of a small-hole hollow shaft, which comprises a base, a positioning pin and a positioning block,
the positioning pin is fixed at the middle position of the upper part of the base, the positioning block is pivotally connected to the positioning pin,
the base main body is cylindrical, a first supporting surface and a second supporting surface are arranged on the base, the first supporting surface and the second supporting surface are respectively positioned at two sides below the positioning block, the first supporting surface is horizontally arranged, the second supporting surface is obliquely arranged and is connected with the edge of the first supporting surface,
when the positioning block is in a horizontal state, two ends of the positioning block extend out of the edge of the base, and two ends of the positioning block can be respectively contacted with the first supporting surface or the second supporting surface when rotating.
Further, the upper portion of the base is cut inwards to form the first supporting surface and the second supporting surface, and the thickness of the positioning block does not exceed the radial thickness of the base.
Further, the positioning block is in contact with the first supporting surface in a normal state, and the positioning block is in a horizontal state.
Further, the first supporting surface and the second supporting surface form an obtuse angle shape, and the first supporting surface and the second supporting surface respectively extend to the edge of the base.
Furthermore, when the positioning block rotates to be in contact with the second supporting surface, both ends of the positioning block do not exceed the edge of the base.
Further, the length of the first supporting surface is smaller than the radius length of the base.
Furthermore, two ends of the positioning block are arranged to be arc-shaped structures matched with the conical surface of the workpiece.
The utility model has the following beneficial effects:
1. the auxiliary measuring tool with the small-hole hollow shaft provided by the utility model has a long inner cavity section, is simple in structure, and is convenient for industrial manufacturing and large-scale popularization.
2. The auxiliary measuring tool with the small-hole hollow shaft provided by the utility model is convenient and quick to operate, and can save time and improve the working efficiency.
3. The auxiliary measuring tool with the small-hole hollow shaft provided by the utility model replaces the traditional slice cutting projection method, and reduces the production cost.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an auxiliary measuring tool for measuring the length of an inner cavity section of a small-orifice hollow shaft at a pipe orifice of a workpiece.
Fig. 2 is a schematic structural view of the inner cavity length measuring clamp in fig. 1 in the inner cavity of the workpiece.
Fig. 3 is a schematic structural view of the inner cavity section length measuring jig in fig. 1.
The device comprises a base 1, a positioning pin 2, a positioning block 3, a first supporting surface 11, a second supporting surface 12 and a workpiece 4.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model provides an auxiliary measuring tool for a small-hole hollow shaft with a long inner cavity section, which is shown in figures 1 to 3 and comprises a base 1, a positioning pin 2 and a positioning block 3. The positioning pin 2 is fixed at the middle position of the upper part of the base 1, and the positioning block 3 is pivotally connected to the positioning pin 2. The main body of the base 1 is cylindrical, a first supporting surface 11 and a second supporting surface 12 are arranged on the base 1, the first supporting surface 11 and the second supporting surface 12 are respectively located on two sides of the lower portion of the positioning block 3, the first supporting surface 11 is horizontally arranged, and the second supporting surface 12 is obliquely arranged and is connected with the edge of the first supporting surface 11. When the positioning block 3 is in a horizontal state, two ends of the positioning block 3 extend out of the edge of the base 1, and two ends of the positioning block 3 can be respectively contacted with the first supporting surface 11 or the second supporting surface 12 when rotating.
In one embodiment, the upper portion of the base 1 is cut inward to form the first support surface 11 and the second support surface 12, and the thickness of the positioning block 3 does not exceed the radial thickness of the base.
In a normal state, the positioning block 3 is in contact with the first supporting surface 11, and the positioning block 3 is in a horizontal state.
The first support surface 11 and the second support surface 12 form an obtuse angle shape, and the first support surface 11 and the second support surface 12 extend to the edge of the base 1, respectively.
When the positioning block 3 rotates to contact with the second supporting surface 12, both ends of the positioning block 3 do not exceed the edge of the base 1.
The length of the first supporting surface 11 is smaller than the radius length of the base 1.
And two ends of the positioning block 3 are arranged to be arc-shaped structures matched with the conical surfaces of the workpiece 4.
The working principle of the utility model is as follows: the diameter of an inner hole of a workpiece is larger than the diameter of an opening of the workpiece, the length of a positioning block on an auxiliary measuring tool is larger than the diameter of the opening and smaller than the diameter of the inner hole, when the positioning block is to extend into the inner hole of the workpiece, the positioning block is obliquely placed to enable the length of the positioning block to be smaller than the diameter of the opening of the workpiece, the positioning block returns to the original position after penetrating through the opening and entering the inner hole, the length of any point on the conical surface of the inner cavity and the length of the step surface of the outer circle are measured by using the horizontal plane of the positioning block as a reference plane and using a height gauge, and the length of the positioning block is the diameter length of the conical surface of the inner cavity to be measured.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications and variations may be made therein by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. An auxiliary measuring tool for the length of an inner cavity section of a small-hole hollow shaft is characterized by comprising a base (1), a positioning pin (2) and a positioning block (3),
the positioning pin (2) is fixed at the middle position of the upper part of the base (1), the positioning block (3) is pivotally connected to the positioning pin (2),
the main body of the base (1) is cylindrical, a first supporting surface (11) and a second supporting surface (12) are arranged on the base (1), the first supporting surface (11) and the second supporting surface (12) are respectively positioned at two sides below the positioning block (3), the first supporting surface (11) is horizontally arranged, the second supporting surface (12) is obliquely arranged and is connected with the edge of the first supporting surface (11),
the two ends of the positioning block (3) extend out of the edge of the base (1) when the positioning block (3) is in a horizontal state, and the two ends of the positioning block (3) can be respectively contacted with the first supporting surface (11) or the second supporting surface (12) when rotating.
2. The auxiliary gauge of the small-bore hollow shaft inner cavity segment length according to claim 1, characterized in that the upper portion of the base (1) is cut inward to a certain thickness to form the first support surface (11) and the second support surface (12), and the thickness of the positioning block (3) does not exceed the radial thickness of the base (1).
3. An auxiliary measuring tool for a long inner cavity section of a small-bore hollow shaft according to claim 1, wherein the positioning block (3) is in contact with the first supporting surface (11) in a normal state, and the positioning block (3) is in a horizontal state.
4. An auxiliary gauge according to claim 1, wherein the first support surface (11) and the second support surface (12) form an obtuse angle, and the first support surface (11) and the second support surface (12) extend to the edge of the base (1).
5. The auxiliary measuring tool of the small-bore hollow shaft section length according to claim 4, wherein when the positioning block (3) is rotated to contact with the second supporting surface (12), both ends of the positioning block (3) do not exceed the edge of the base (1).
6. An auxiliary gauge according to claim 5, wherein the length of the first support surface (11) is less than the length of the radius of the base (1).
7. The auxiliary measuring tool for the length of the inner cavity section of the small-bore hollow shaft according to claim 1, wherein the two ends of the positioning block (3) are provided with arc structures matched with the conical surface of the workpiece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122379880.6U CN216482640U (en) | 2021-09-29 | 2021-09-29 | Auxiliary measuring tool for inner cavity section length of small-hole hollow shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122379880.6U CN216482640U (en) | 2021-09-29 | 2021-09-29 | Auxiliary measuring tool for inner cavity section length of small-hole hollow shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216482640U true CN216482640U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122379880.6U Active CN216482640U (en) | 2021-09-29 | 2021-09-29 | Auxiliary measuring tool for inner cavity section length of small-hole hollow shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216482640U (en) |
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2021
- 2021-09-29 CN CN202122379880.6U patent/CN216482640U/en active Active
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Address after: 224100 No. 299, Nanxiang West Road, Dafeng Economic and Technological Development Zone, Yancheng City, Jiangsu Province Patentee after: Qianchao Senwei Co.,Ltd. Country or region after: China Address before: 224100 Nanxiang Road 299, Dafeng Economic Development Zone, Yancheng City, Jiangsu Patentee before: JIANGSU SUNWAY PRECISION FORGING Co.,Ltd. Country or region before: China |