CN212779808U - Airtight detection conversion mechanism - Google Patents
Airtight detection conversion mechanism Download PDFInfo
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- CN212779808U CN212779808U CN202022179938.8U CN202022179938U CN212779808U CN 212779808 U CN212779808 U CN 212779808U CN 202022179938 U CN202022179938 U CN 202022179938U CN 212779808 U CN212779808 U CN 212779808U
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- airtight
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an air tightness detection conversion mechanism, which comprises an air tightness equal-height seat, wherein the air tightness equal-height seat is provided with a mounting hole and a detection hole; the detection hole is a stepped hole with a small upper part and a large lower part, the detection hole comprises a large hole section and a small hole section which are coaxial, an airtight equal-height column is arranged in the detection hole, and the airtight equal-height column is in up-and-down sliding fit with the small hole section; and a pressure spring is sleeved on the airtight equal-height column, and the outer diameter of the pressure spring is larger than the small hole section but smaller than the large hole section. The conversion mechanism has the greatest advantage that the common product surface detection plugging mode is changed into a mode of plugging by using a converted mechanism, so that the airtightness of a product with a small contact surface is effectively ensured. Is very suitable for products with small contact surfaces.
Description
Technical Field
The utility model belongs to the technical field of machining, concretely relates to airtight detection shifter.
Background
At present, whether the product clamping is in place or not is generally confirmed by adopting air tightness detection. When the air tightness detection is carried out on a product with a small positioning contact surface, the existing conventional design uses a mode of directly forming holes on air tightness equal-height seats for detection. As shown in the airtight equal-height seat in figure 1, an upper end orifice of an airtight hole on the right side of the airtight equal-height seat is in direct contact with a product, a lower end orifice of the airtight hole is aligned with an air inlet hole, compressed air is introduced into the airtight hole through the air inlet hole, and then the leakage amount of the compressed air between the airtight equal-height seat and the product is detected to confirm whether the product is clamped in place. And if the area of the positioning part of the product is small, the upper end orifice of the airtight hole is difficult to be blocked, so that the airtightness detection fails. As the number of various existing machining products increases, improvement for the problem is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an airtight detection conversion mechanism to solve the problem in the background art.
The technical scheme of the utility model as follows: the air tightness detection conversion mechanism comprises an air tightness equal-height seat, and the air tightness equal-height seat is provided with a mounting hole and a detection hole; the detection hole is a stepped hole with a small upper part and a large lower part, the detection hole comprises a large hole section and a small hole section which are coaxial, an airtight equal-height column is arranged in the detection hole, and the airtight equal-height column is in up-and-down sliding fit with the small hole section; and a pressure spring is sleeved on the airtight equal-height column, and the outer diameter of the pressure spring is larger than the small hole section but smaller than the large hole section.
Further: an outer convex circular part is formed on the airtight equal-height column and is in up-and-down sliding fit with the large hole section.
Further: the pressure spring is a cylindrical spiral compression spring.
Has the advantages that: this scheme provides an airtight detection conversion mechanism, and the biggest advantage is in changing into the mechanism after the conversion with the product self surface detection shutoff mode commonly used and carries out the shutoff, makes when airtight detection of the little product of similar contact surface obtain effectual assurance. Is very suitable for products with small contact surfaces.
Drawings
FIG. 1 is a schematic view of the structure of the present air-tight equal-height seat of the present invention;
fig. 2 is a schematic view of a detection structure of the switching mechanism of the present invention;
fig. 3 is a schematic structural view of the air-tight equal-height seat in fig. 2.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1, fig. 2 and fig. 3, the utility model discloses an airtight detection conversion mechanism, which comprises an airtight equal-height seat 2, wherein the airtight equal-height seat 2 is provided with a mounting hole 21 and a detection hole 22. The detection hole 22 is a stepped hole with a small upper part and a large lower part, and the detection hole 22 comprises a large hole section 22b and a small hole section 22a which are coaxial. An airtight equal-height column 5 is arranged in the detection hole 22, and the airtight equal-height column 5 is in up-and-down sliding fit with the small hole section 22 a; the airtight equal-height column 5 is sleeved with a pressure spring 6, and the outer diameter of the pressure spring 6 is larger than the small hole section 22a but smaller than the large hole section 22 b.
It should be noted that: the airtight equal-height column 5 belongs to a part for airtight detection in machining, and a specific use mode is described in the following. In the optimized embodiment, the cylindrical helical compression spring is selected as the compression spring 6 and sleeved on the airtight equal-height column 5. An outer convex round part 5a is formed on the airtight equal-height column 5 in a machining mode, and the outer convex round part 5a is in up-and-down sliding fit with the large hole section 22b, so that the airtight equal-height column 5 is further guided and limited by the foreign courtyard, and the airtight equal-height column 5 can slide up and down along the detection hole 22 more accurately.
Specifically, as shown in fig. 2, screws 3 are provided in mounting holes 21 of the airtight equal height seat 2, and the airtight equal height seat 2 is fixed to the test table 4 by the screws 3. The upper end of the cylindrical helical compression spring is abutted against the outer convex circular part 5a or the step surface of the large hole section 22b and the small hole section 22a, and the lower end of the cylindrical helical compression spring is abutted against the detection table 4. The airtight equal-height column 5 moves upwards under the elastic force of the cylindrical spiral compression spring, and a gap of 0.5mm-1mm is arranged between the lower end face of the airtight equal-height column 5 and the detection table 4.
The product 1 is pressed towards the upper end of the airtight equal-height column 5 from top to bottom, so that the upper end of the airtight equal-height column 5 is completely attached to the positioning surface of the product 1 (matched with and inserted into the positioning hole on the product 1). The product 1 is continuously pressed downwards until the lower end face of the airtight equal-height column 5 overcomes the elastic force of the cylindrical spiral compression spring and then is tightly propped against the detection table 4 downwards. Then, compressed air is introduced as indicated by arrows in fig. 2, and an air tightness detector is used to detect whether there is compressed air leakage between the lower end surface of the dense equal-height column and the detection table 4, or whether the amount of the leaked compressed air is within a preset range value, thereby completing the switching of detection. That is, the compressed air between the product 1 and the upper end surface of the airtight equal-height column 5 is detected and converted into the state that whether the compressed air leaks or the leakage amount exists between the lower end surface of the equal-height column and the detection table 4 in the prior art. Therefore, for some products 1 with small contact surfaces, the detection is more convenient, and the detection precision is more accurate. This detection configuration and manner is well suited for use with products 1 having a small contact surface.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. Airtight detection shifter, its characterized in that: the device comprises an airtight equal-height seat (2), wherein the airtight equal-height seat (2) is provided with a mounting hole (21) and a detection hole (22); the detection hole (22) is a stepped hole with a small upper part and a large lower part, the detection hole (22) comprises a large hole section (22b) and a small hole section (22a) which are coaxial, an airtight equal-height column (5) is arranged in the detection hole (22), and the airtight equal-height column (5) is in up-and-down sliding fit with the small hole section (22 a); the airtight equal-height column (5) is sleeved with a pressure spring (6), and the outer diameter of the pressure spring (6) is larger than the small hole section (22a) and smaller than the large hole section (22 b).
2. The airtightness detection conversion mechanism according to claim 1, wherein: an outer convex round part (5a) is formed on the airtight equal-height column (5), and the outer convex round part (5a) is in up-and-down sliding fit with the large hole section (22 b).
3. The airtightness detection conversion mechanism according to claim 2, wherein: the pressure spring (6) is a cylindrical spiral compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022179938.8U CN212779808U (en) | 2020-09-28 | 2020-09-28 | Airtight detection conversion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022179938.8U CN212779808U (en) | 2020-09-28 | 2020-09-28 | Airtight detection conversion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212779808U true CN212779808U (en) | 2021-03-23 |
Family
ID=75056739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022179938.8U Active CN212779808U (en) | 2020-09-28 | 2020-09-28 | Airtight detection conversion mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212779808U (en) |
-
2020
- 2020-09-28 CN CN202022179938.8U patent/CN212779808U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 401121 No.1, East Section of Tianshan Avenue, Yubei District, Chongqing Patentee after: Chongqing Yujiang Die Casting Co.,Ltd. Address before: 400000 No.1, east section of Tianshan Avenue, Liangjiang New District, Yubei District, Chongqing Patentee before: CHONGQING YUJIANG DIE-CASTING Co.,Ltd. |
|
| CP03 | Change of name, title or address |