CN216419875U - Fixing device for valve sleeve coating - Google Patents
Fixing device for valve sleeve coating Download PDFInfo
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- CN216419875U CN216419875U CN202122829074.4U CN202122829074U CN216419875U CN 216419875 U CN216419875 U CN 216419875U CN 202122829074 U CN202122829074 U CN 202122829074U CN 216419875 U CN216419875 U CN 216419875U
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- sleeve
- valve sleeve
- coating
- fixing disc
- connecting plate
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Abstract
The utility model relates to a fixing device for coating of a valve sleeve, which comprises a positioning rod, wherein an upper fixing disk and a lower fixing disk are coaxially fixed at two ends of the positioning rod, a rectangular square hole is arranged at the center of the upper fixing disk and the lower fixing disk, a plurality of connecting plates are fixed between the upper fixing disk and the lower fixing disk, a plurality of fixing components for fixing the valve sleeve are evenly arranged on the connecting plates, a plurality of arc-shaped clamping grooves are evenly arranged on the upper fixing disk along the circumferential direction of the upper fixing disk, trapezoidal clamping grooves are evenly arranged on the lower fixing disk along the circumferential direction of the lower fixing disk, limiting pins corresponding to the arc-shaped clamping grooves are arranged at the top end of the connecting plates, the limiting pins are clamped with the arc-shaped clamping grooves, an inserting block corresponding to the trapezoidal clamping grooves is arranged at the bottom end of the connecting plates, the inserting block is inserted in the trapezoidal clamping grooves, and the region of the valve sleeve needing the coating can be accurately positioned by arranging the fixing components, the coating requirement is met, the coating quality of the valve sleeve is improved, and the clamping efficiency is improved by arranging the clamping type front sleeve and the clamping type rear cover.
Description
The technical field is as follows:
the utility model relates to a sprayer accessory preparation technical field especially relates to a fixing device for valve barrel coating.
Background art:
in high pressure common rail diesel fuel injection systems, fuel injectors and various associated injector accessories are an essential component. With the continuous progress of science and technology and the gradual consumption of energy, low fuel consumption and low pollution become the strategic targets of the global automobile development. The valve sleeve is used as an important component of the fuel injector valve assembly, and the service performance of the valve sleeve has great influence on the whole fuel injector valve assembly. At present, more and more valve sleeves are coated with CrN coatings at the positions of valve cores to improve the wear resistance and the corrosion resistance of the valve sleeves, so that the precision of the valve cores after being used for many times is greatly optimized, the quality and the durability are ensured, and meanwhile, low oil consumption and low pollution are realized.
However, the valve sleeve belongs to a high-precision component, in the coating process, only the valve core position is allowed to be coated, and the coating is not allowed in other areas, so that a tool with high clamping efficiency and good coating quality is urgently needed to ensure the coating requirement of the valve sleeve.
The utility model has the following contents:
the utility model aims at providing a simple structure, the efficient fixing device for valve barrel coating of clamping to prior art's defect.
The utility model discloses a realize through following technical scheme:
a fixing device for a valve sleeve coating comprises a positioning rod, wherein an upper fixing disc and a lower fixing disc are coaxially fixed at two ends of the positioning rod, a plurality of connecting plates are fixed between the upper fixing disc and the lower fixing disc, a plurality of fixing assemblies for fixing a valve sleeve are uniformly arranged on the connecting plates, a plurality of arc-shaped clamping grooves are uniformly formed in the upper fixing disc along the circumferential direction of the upper fixing disc, and trapezoidal clamping grooves are uniformly formed in the lower fixing disc along the circumferential direction of the lower fixing disc;
the top of connecting plate is provided with the spacer pin corresponding with arc joint groove, and the spacer pin is with arc joint groove joint, and the bottom of connecting plate is provided with the plug-in block corresponding with trapezoidal draw-in groove, the plug-in block is pegged graft in trapezoidal draw-in groove.
In order to install a plurality of fixing assemblies, a row of mounting holes are uniformly formed in the connecting plate, and the fixing assemblies are arranged in the mounting holes.
In order to fix the assembly for matching and clamping the valve sleeve, the fixing assembly comprises a front sleeve, a rear cover and a spring, the front sleeve is arranged in the mounting hole, the rear cover is inserted into the front sleeve, the spring is arranged in a cavity of the front sleeve and the cavity of the rear cover, two ends of the spring are respectively abutted against the front sleeve and the rear cover, a conical surface groove matched with the shape of the front end of the valve sleeve is arranged at the front end of the front sleeve, and a spraying hole communicated with the cavity of the front sleeve is formed in the conical surface groove.
In order to connect the front sleeve and the rear cover, a check ring is arranged at the front end of the front sleeve, an annular clamping groove is formed in the side wall, close to the check ring, of the front sleeve, two L-shaped clamping grooves are symmetrically formed in the rear end of the side wall of the front sleeve, two clamping pins are symmetrically fixed to the front end of the outer wall of the rear cover, and the clamping pins are clamped in the L-shaped clamping grooves.
In order to fix the front sleeve on the connecting plate, the front sleeve is inserted into the mounting hole of the connecting plate, the retainer ring abuts against the front face of the connecting plate, the annular clamping groove of the front sleeve is internally clamped with the clamp spring, and the clamp spring abuts against the back face of the connecting plate.
In order to realize the axial fixation of the connecting plate, the limiting pin comprises a cylindrical pin and a limiting block arranged at the end part of the cylindrical pin, and the cylindrical pin is clamped into the arc-shaped clamping groove.
In order to realize the circumferential fixation of the connecting plate, the insertion block is a rectangular block.
In order to sleeve the positioning rod on the positioning frame, the positioning rod is of a hollow structure, and rectangular square holes communicated with the positioning rod are formed in the centers of the upper fixing disc and the lower fixing disc.
The utility model has the advantages that: through setting up fixed subassembly, can the region that accurate location needs the coating, when the protection is not the coating region, the regional coating quality of stable coating, through setting up preceding sleeve and the back lid of joint formula, clamping efficiency is improved, install the valve barrel on the connecting plate earlier, install the connecting plate at the upper fixed disk again, down between the fixed disk, simple to operate, save time, this structure is clamping efficient on the whole, the clamping is in large quantity, when improving production efficiency, reduce manufacturing cost, shorten the delivery phase, guarantee valve barrel coating quality, satisfy the customer requirement, improve enterprise competitiveness.
Description of the drawings:
fig. 1 is a schematic perspective view of a valve sleeve coating fixture according to the present invention;
fig. 2 is a schematic view of a three-dimensional structure of the fixing assembly and the connecting plate according to the present invention;
fig. 3 is a schematic perspective view of the connection plate of the present invention;
fig. 4 is an exploded view of the securing assembly of the present invention;
fig. 5 is a schematic perspective view of the front sleeve of the present invention;
fig. 6 is a schematic perspective view of another perspective view of the front sleeve according to the present invention.
The specific implementation mode is as follows:
the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.
As shown in fig. 1-6, the fixing device for coating a valve sleeve comprises a positioning rod 5, wherein an upper fixing disk 6 and a lower fixing disk 7 are coaxially fixed at two ends of the positioning rod 5, a plurality of connecting plates 1 are fixed between the upper fixing disk 6 and the lower fixing disk 7, a plurality of fixing assemblies for fixing the valve sleeve are uniformly arranged on the connecting plates 1, a plurality of arc-shaped clamping grooves 61 are uniformly formed in the upper fixing disk 6 along the circumferential direction of the upper fixing disk, and trapezoidal clamping grooves 71 are uniformly formed in the lower fixing disk along the circumferential direction of the lower fixing disk;
the top end of the connecting plate 1 is provided with a limiting pin 12 corresponding to the arc-shaped clamping groove 61, the limiting pin 12 is clamped with the arc-shaped clamping groove 61, the bottom end of the connecting plate 1 is provided with an inserting block 13 corresponding to the trapezoid clamping groove 71, and the inserting block 13 is inserted into the trapezoid clamping groove 71.
A row of mounting holes 11 are uniformly formed in the connecting plate 1, and fixing assemblies are arranged in the mounting holes 11.
The fixed assembly comprises a front sleeve 2, a rear cover 3 and a spring 4, the front sleeve 2 is arranged in the mounting hole 11, the rear cover 3 is inserted on the front sleeve 2, the spring 4 is arranged in a cavity of the front sleeve 2 and the rear cover 3, two ends of the spring 4 are respectively abutted against the front sleeve 2 and the rear cover 3, a conical surface groove 21 matched with the shape of the front end of the valve sleeve is arranged at the front end of the front sleeve 2, and the conical surface groove 21 is provided with a spraying hole 22 communicated with the cavity of the front sleeve 2;
the front end of the front sleeve 2 is provided with a retainer ring 23, the side wall of the front sleeve 2 close to the retainer ring 23 is provided with an annular clamping groove 24, the rear end of the side wall of the front sleeve 2 is symmetrically provided with two L-shaped clamping grooves 25, the front end of the outer wall of the rear cover 3 is symmetrically fixed with two clamping pins 31, and the clamping pins 31 are clamped in the L-shaped clamping grooves 25.
The front sleeve 2 is inserted into the mounting hole 11 of the connecting plate 1, the retainer ring 23 abuts against the front face of the connecting plate 1, the annular clamping groove 24 of the front sleeve 2 is internally clamped with the clamp spring 26, and the clamp spring 26 abuts against the back face of the connecting plate 1.
The limiting pin 12 comprises a cylindrical pin 121 and a limiting block 122 arranged at the end of the cylindrical pin 121, and the cylindrical pin 121 is clamped into the arc-shaped clamping groove 61 and used for axially fixing the connecting plate 1.
The insertion block 13 is a rectangular block and is used for circumferentially fixing the connecting plate 1.
The positioning rod 5 is of a hollow structure, and rectangular square holes 51 communicated with the positioning rod 5 are formed in the centers of the upper fixing disc 6 and the lower fixing disc 7.
The rectangular square hole 51 is matched with the clamping rod, so that the valve sleeve rotates in two dimensions during coating, and the coating uniformity is improved.
The working principle is as follows: the valve sleeve is of a T-shaped structure, the front end of the valve sleeve is a round block, the rear end of the valve sleeve is a columnar rod, an inwards concave conical surface is formed in the end face of the round block, the valve sleeve is sleeved with a spring 4 on the columnar rod from the back, the front end of the valve sleeve is placed into the cavity of the front sleeve 2, the rear cover 3 is covered, the front sleeve 2 is clamped with the rear cover 3, the inwards concave surface of the valve sleeve is tightly attached to the conical surface groove 21 of the front sleeve 2 under the action of the spring, and after the valve sleeve is fixed, the connecting plate 1 is clamped between the upper fixing plate 6 and the lower fixing plate 7.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (8)
1. A fixing device for a valve sleeve coating is characterized in that: the valve sleeve fixing device comprises a positioning rod (5), wherein an upper fixing disc (6) and a lower fixing disc (7) are coaxially fixed at two ends of the positioning rod (5), a plurality of connecting plates (1) are fixed between the upper fixing disc (6) and the lower fixing disc (7), a plurality of fixing assemblies for fixing a valve sleeve are uniformly arranged on the connecting plates (1), a plurality of arc-shaped clamping grooves (61) are uniformly formed in the upper fixing disc (6) along the circumferential direction of the upper fixing disc, and trapezoidal clamping grooves (71) are uniformly formed in the lower fixing disc along the circumferential direction of the lower fixing disc;
the top end of the connecting plate (1) is provided with a limiting pin (12) corresponding to the arc clamping groove (61), the limiting pin (12) is clamped with the arc clamping groove (61), the bottom end of the connecting plate (1) is provided with an inserting block (13) corresponding to the trapezoid clamping groove (71), and the inserting block (13) is inserted into the trapezoid clamping groove (71).
2. The fixture for coating a valve sleeve as set forth in claim 1, wherein: a row of mounting holes (11) are uniformly formed in the connecting plate (1), and fixing assemblies are arranged in the mounting holes (11).
3. The fixture for coating a valve sleeve as set forth in claim 2, wherein: the fixed component comprises a front sleeve (2), a rear cover (3) and a spring (4), the front sleeve (2) is arranged in a mounting hole (11), the rear cover (3) is inserted into the front sleeve (2), the spring (4) is arranged in a cavity of the front sleeve (2) and the rear cover (3), two ends of the spring (4) are respectively abutted against the front sleeve (2) and the rear cover (3), a conical surface groove (21) matched with the shape of the front end of the valve sleeve is arranged at the front end of the front sleeve (2), and a spraying hole (22) communicated with the cavity of the front sleeve (2) is formed in the conical surface groove (21).
4. The fixture for coating a valve sleeve as set forth in claim 3, wherein: the front end of the front sleeve (2) is provided with a check ring (23), the side wall, close to the check ring (23), of the front sleeve (2) is provided with an annular clamping groove (24), the rear end of the side wall of the front sleeve (2) is symmetrically provided with two L-shaped clamping grooves (25), the front end of the outer wall of the rear cover (3) is symmetrically fixed with two clamping pins (31), and the clamping pins (31) are clamped in the L-shaped clamping grooves (25).
5. The fixture for coating a valve sleeve as set forth in claim 4, wherein: the front sleeve (2) is inserted into the mounting hole (11) of the connecting plate (1), the check ring (23) abuts against the front face of the connecting plate (1), the annular clamping groove (24) of the front sleeve (2) is internally clamped with the clamp spring (26), and the clamp spring (26) abuts against the back face of the connecting plate (1).
6. The fixture for coating a valve sleeve as set forth in claim 1, wherein: the limiting pin (12) comprises a cylindrical pin (121) and a limiting block (122) arranged at the end part of the cylindrical pin (121), and the cylindrical pin (121) is clamped into the arc-shaped clamping groove (61).
7. The fixture for coating a valve sleeve as set forth in claim 1, wherein: the insertion block (13) is a rectangular block.
8. The fixture for coating a valve sleeve as set forth in claim 1, wherein: the positioning rod (5) is of a hollow structure, and rectangular square holes (51) communicated with the positioning rod (5) are formed in the centers of the upper fixing disc (6) and the lower fixing disc (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122829074.4U CN216419875U (en) | 2021-11-18 | 2021-11-18 | Fixing device for valve sleeve coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122829074.4U CN216419875U (en) | 2021-11-18 | 2021-11-18 | Fixing device for valve sleeve coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216419875U true CN216419875U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122829074.4U Active CN216419875U (en) | 2021-11-18 | 2021-11-18 | Fixing device for valve sleeve coating |
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| CN (1) | CN216419875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704062A (en) * | 2022-05-07 | 2022-07-05 | 郑州大学 | High-rise assembled building integral operation platform and construction method thereof |
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2021
- 2021-11-18 CN CN202122829074.4U patent/CN216419875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704062A (en) * | 2022-05-07 | 2022-07-05 | 郑州大学 | High-rise assembled building integral operation platform and construction method thereof |
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