CN219368566U - Measuring tool for measuring undercut deviation of projectile body - Google Patents
Measuring tool for measuring undercut deviation of projectile body Download PDFInfo
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- CN219368566U CN219368566U CN202223116751.9U CN202223116751U CN219368566U CN 219368566 U CN219368566 U CN 219368566U CN 202223116751 U CN202223116751 U CN 202223116751U CN 219368566 U CN219368566 U CN 219368566U
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- measuring
- deviation
- undercut
- projectile body
- positioning part
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model belongs to the technical field of measurement, and discloses a measuring tool for measuring the undercut deviation of an elastomer, which comprises a positioning part (1), a measuring part (2) and a handle (3); the positioning part (1) is disc-shaped, and the size of the positioning part is matched with the inner diameter of the bottom of the projectile body; the measuring part (2) is also disc-shaped, the top of the measuring part is fixedly connected with the bottom of the positioning part (1), the measuring part and the positioning part are coaxially arranged, and the radius of the measuring part is the sum of the outer diameter of the bottom of the projectile body and the maximum concave deviation; the handle (3) is fixedly arranged on the bottom surface of the measuring part (2). The utility model can ensure the measurement precision of the production and processing of the concave elastomer, and avoid the interference of human factors, thereby improving the quality of the production and processing of the elastomer blank.
Description
Technical Field
The utility model belongs to the technical field of measurement, and particularly relates to a measuring tool for measuring the undercut deviation of an elastomer.
Background
When some elastomer blanks are hot extruded, an upper punch and a lower punch are adopted to simultaneously extrude the blanks, and under the action of bidirectional extrusion force, metal flows in the positive and negative directions, so that a special structural form of an elastomer inner cavity and an elastomer bottom recess is formed respectively.
The traditional measuring method only uses naked eyes of inspectors to identify and judge whether defects such as out-of-tolerance wall thickness deviation exist in the concave parts of the elastomer bottom, and the punched elastomer blank is in a high-temperature red material state, so that great judgment difficulty is brought to inspectors, the influence of human factors is great, and the influence on the machining sequence of the subsequent elastomer is unavoidable.
Because of the special structure of the bottom concave elastomer, and the inconvenience factors that the temperature of the elastomer after punching is higher than 850 ℃, the common measuring method is not suitable, whether the size of the bottom concave of the elastomer meets the subsequent processing requirement cannot be intuitively judged, the inspection of the product is difficult, and the production of the product is inevitably influenced to a certain extent.
Therefore, the measuring tool capable of being used for measuring the deviation of the thickness of the bottom concave wall of the elastomer body is designed, the measuring precision of the production and processing of the bottom concave elastomer body can be further ensured, the interference of human factors is avoided, and the quality of the production and processing of the elastomer blank is improved.
Disclosure of Invention
The utility model aims to provide a measuring tool for measuring the undercut deviation of an elastomer, so as to solve the technical problem that the undercut deviation of the elastomer is inaccurate in a method for identifying and judging by human eyes and influence on production of products.
In order to achieve the above purpose, the specific technical scheme of the measuring tool for measuring the undercut deviation of the projectile body is as follows:
a measuring tool for measuring the undercut deviation of a projectile body comprises a positioning part 1, a measuring part 2 and a handle 3; the positioning part 1 is disc-shaped, and the size of the positioning part is matched with the inner diameter of the bottom of the projectile body; the measuring part 2 is also disc-shaped, the top of the measuring part is fixedly connected with the bottom of the positioning part 1, the measuring part and the positioning part are coaxially arranged, and the radius of the measuring part is the sum of the outer diameter of the bottom of the projectile body and the maximum undercut deviation; the handle 3 is fixedly arranged on the bottom surface of the measuring part 2.
Wherein the positioning part 1 and the measuring part 2 are made of high temperature resistant materials.
Further, a heat insulation pad is arranged on the handle 3, and anti-skid patterns are arranged on the heat insulation pad.
The measuring device for measuring the undercut deviation of the projectile body has the following advantages: the measuring precision of the production and processing of the concave elastomer is ensured, and the interference of human factors is avoided, so that the quality of the production and processing of the elastomer blank is improved.
Drawings
FIG. 1 is a schematic diagram of a gauge for measuring a undercut offset of an elastomer in accordance with the present utility model;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a diagram illustrating measurement of a undercut offset gauge.
Detailed Description
For a better understanding of the objects, structure and function of the present utility model, a gauge for measuring a deflection of a recess of a projectile is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 2, the gauge for measuring the undercut deviation of the projectile body of the present embodiment includes a positioning portion 1, a measuring portion 2, and a handle 3;
the positioning part 1 is disc-shaped, and the size of the positioning part is matched with the inner diameter of the bottom of the projectile body; the measuring part 2 is also disc-shaped, the top of the measuring part is fixedly connected with the bottom of the positioning part 1, the measuring part and the positioning part are coaxially arranged, and the radius of the measuring part is the sum of the outer diameter of the bottom of the projectile body and the maximum undercut deviation. The handle 3 is fixedly arranged on the bottom surface of the measuring part 2.
The positioning part 1 and the measuring part 2 are made of high temperature resistant materials.
The handle 3 is provided with a heat insulation pad, so that the operator is prevented from being injured due to high-temperature heat transfer of metal.
When the measuring device is used, the positioning part 1 is inserted into the bottom of the projectile body, the direction of the handle is perpendicular to the bottom of the projectile body, when the measuring part 2 completely shields the bottom of the projectile body, naked eyes can see that no blank is exposed, the product is qualified, and otherwise, the product is out of tolerance.
During actual operation, the measuring tool expands when meeting high temperature, so that the size of the positioning part 1 is slightly smaller than the inner diameter of the bottom of the elastomer by 1-2mm during actual processing, the situation that the positioning part 1 cannot extend into the bottom of the elastomer due to thermal expansion is avoided, and the centers of the positioning part and the bottom of the elastomer are not overlapped.
As shown in FIG. 3, phi 1 Is the maximum diameter size phi of the outer circle of the concave part of the projectile body 2 Is the diameter size phi of the inner circle of the concave part of the elastomer body 3 For subsequent processing of diameter dimensions phi 4 The maximum limit size is measured for the gauge. O (O) 1 Is the concave center of the projectile body, O 2 For measuring the center of the disk, O 1 、O 2 The maximum distance between the two is H, namely H is the maximum axis offset, and the maximum distance is the sum of the respective wall thickness deviations of the inner bore and the bottom recess, and the maximum distance is the limit tolerance. Examples: if the maximum process dimension value of the bore deviation is 5mm, the undercut deviation must be controlled within H-5 mm. The measurement size of the measuring tool can be properly adjusted according to the maximum allowable value of the bore deviation. The equivalent tool being inserted into the recess, e.g. the outer diameter of the projectile exceeding phi 4 And judging that the product is out of tolerance if naked blanks are visible to naked eyes.
The embodiment of the utility model has the advantages of simple structure, low manufacturing cost, easy operation and higher measurement precision, and is suitable for measuring and detecting the undercut deviation sizes of the undercut shells of all calibers. The problems that the concave deviation cannot be measured before and the measurement accuracy is poor are solved, and the effective guarantee of the product quality accuracy is realized.
Although embodiments of the present utility model have been described in conjunction with the accompanying drawings, it will be apparent to those skilled in the art that several variations and modifications may be made without departing from the principles of the utility model, which are also considered to be within the scope of the utility model.
Claims (4)
1. A measuring tool for measuring the undercut deviation of a projectile body, which is characterized by comprising a positioning part (1), a measuring part (2) and a handle (3);
the positioning part (1) is disc-shaped, and the size of the positioning part is matched with the inner diameter of the bottom of the projectile body; the measuring part (2) is also disc-shaped, the top of the measuring part is fixedly connected with the bottom of the positioning part (1), the measuring part and the positioning part are coaxially arranged, and the radius of the measuring part is the sum of the outer diameter of the bottom of the projectile body and the maximum undercut deviation; the handle (3) is fixedly arranged on the bottom surface of the measuring part (2).
2. The gauge for measuring the undercut deviation of an elastomer according to claim 1, characterized in that the positioning part (1) and the measuring part (2) are made of a high temperature resistant material.
3. The gauge for measuring the undercut deviation of an elastomer according to claim 1, characterized in that the handle (3) is provided with a heat insulation pad.
4. The gauge for measuring a deflection of a projectile body of claim 3 wherein said insulation blanket has cleats disposed thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223116751.9U CN219368566U (en) | 2022-11-23 | 2022-11-23 | Measuring tool for measuring undercut deviation of projectile body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223116751.9U CN219368566U (en) | 2022-11-23 | 2022-11-23 | Measuring tool for measuring undercut deviation of projectile body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219368566U true CN219368566U (en) | 2023-07-18 |
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ID=87152969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223116751.9U Active CN219368566U (en) | 2022-11-23 | 2022-11-23 | Measuring tool for measuring undercut deviation of projectile body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219368566U (en) |
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2022
- 2022-11-23 CN CN202223116751.9U patent/CN219368566U/en active Active
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