CN211227252U - Vacuum heat treatment device for hardware processing - Google Patents
Vacuum heat treatment device for hardware processing Download PDFInfo
- Publication number
- CN211227252U CN211227252U CN201922500461.6U CN201922500461U CN211227252U CN 211227252 U CN211227252 U CN 211227252U CN 201922500461 U CN201922500461 U CN 201922500461U CN 211227252 U CN211227252 U CN 211227252U
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- China
- Prior art keywords
- flange
- caulking groove
- heat treatment
- treatment device
- vacuum
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Abstract
The utility model discloses a vacuum heat treatment device for hardware processing, including vacuum pipe and butt joint pipeline, the tip of vacuum pipe is provided with first flange, the tip of butt joint pipeline is provided with the second flange, the periphery edge of second flange is equipped with annular arch, just the bellied inboard of annular is equipped with the caulking groove, the overlook cross-section of caulking groove is trapezoidal and the breach area that forms on annular arch is less than groove bottom surface, be equipped with bellied abaculus on the outside circumference of first flange, the abaculus just is clearance fit with the cross-section complete shape of caulking groove, first flange passes through bolt fixed connection with the second flange. The utility model discloses caulking groove and abaculus cooperation can not only be spacing to prevent first flange and second flange off-centre from appearing, can also make first flange and second flange remain normal position all the time, prevent that locking degree is inhomogeneous to result in the sealing washer to produce inhomogeneous the compressing tightly warp and influence vacuum stability.
Description
Technical Field
The utility model belongs to the technical field of the work piece heat treatment, in particular to vacuum heat treatment device for hardware processing.
Background
At present, in the processing of metal hardware, the internal organization structure of metal is changed through different heat treatment processes, so that the metal material can meet the required performance. With the continuous development of heat treatment technology, vacuum heat treatment is widely applied in order to avoid the internal oxidation of parts caused by the action of oxygen during heat treatment.
The vacuum degree inside the vacuum heat treatment device is usually controlled by an external vacuum pumping system, wherein the vacuum chamber is connected with the vacuum system through a pipeline flange, as shown in fig. 1, which is the existing connection mode, the vacuum heat treatment device mainly realizes pipeline connection by locking wheels and screws.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vacuum heat treatment device for hardware processing to the problem of above-mentioned prior art's existence.
The utility model discloses a following technical means realizes solving above-mentioned technical problem:
the utility model provides a vacuum heat treatment device for hardware processing, includes vacuum pipe and butt joint pipeline, the tip of vacuum pipe is provided with first flange, the tip of butt joint pipeline is provided with the second flange, the periphery edge of second flange is equipped with the annular arch, just the bellied inboard of annular is equipped with the caulking groove, the overlook cross-section of caulking groove is trapezoidal and the breach area that forms on the annular arch is less than the groove bottom surface, be equipped with bellied abaculus on the outside circumference of first flange, the abaculus is completely described with the cross-section of caulking groove and is clearance fit, first flange passes through bolt fixed connection with the second flange.
Furthermore, the fit clearance between the embedded block and the embedded groove is not more than 0.5 mm.
Furthermore, the overlooking section of the caulking groove is in an isosceles trapezoid shape.
Further, the bottom of second flange is provided with the fixing base, be connected with the bolt on the fixing base, the bolt rotates through the round pin axle with the fixing base to be connected, all be equipped with the breach so that the bolt rotates the embedding on the outside circumference of first flange and second flange, threaded connection has the locking handle wheel on the bolt.
The utility model has the advantages that: the utility model discloses the caulking groove can not only be spacing to prevent first flange and second flange off-centre with the abaculus cooperation, can also control first flange and can only do the ascending motion of edge butt joint pipeline axial in fastening process to make first flange and second flange remain normal position throughout, prevent that the locking degree is inhomogeneous to lead to the sealing washer to produce inhomogeneous to compress tightly and warp and influence vacuum stability.
Drawings
FIG. 1 is a schematic view of a prior art connection of a vacuum line and a docking line;
fig. 2 is a schematic view of the vacuum pipeline and the butt-joint pipeline according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
As shown in fig. 2, a vacuum heat treatment device for hardware processing, including vacuum pipe 10 and butt joint pipeline 20, vacuum pipe 10 and evacuation system (not shown in the figure) intercommunication, butt joint pipeline 20 and vacuum chamber (not shown in the figure) intercommunication, vacuum chamber provide the cavity of certain vacuum degree for hardware heat treatment processing, vacuum pipe 10's tip is provided with first flange 11, butt joint pipeline 20's tip is provided with second flange 21, the periphery circle edge of second flange 21 is equipped with annular bulge 22, just annular bulge 22's inboard is equipped with caulking groove 23, the overlook cross-section of caulking groove 23 is trapezoidal and the breach area that forms on annular bulge 22 is less than the groove volume, be equipped with bellied abaculus 12 on the outside circumference of first flange 11, abaculus 12 is with the complete and clearance fit of caulking groove 23's cross-sectional shape, the first flange 11 and the second flange 21 are fixedly connected through bolts.
The utility model is characterized in that the annular bulge 22 and the special-shaped caulking groove 23 are additionally arranged, so that when the vacuum pipeline 10 is fixedly butted with the butt joint pipeline 20, the first flange 11 must be embedded into the annular bulge 22, and the embedded block 12 must be embedded into the caulking groove 23, so that the first flange 11 can be limited to prevent the first flange 11 and the second flange 21 from being eccentric; in addition, in the process of connecting the first flange 11 and the second flange 21 by using bolts, due to the special-shaped structure of the embedded groove 23, when the situation that the first flange 11 slightly inclines due to the overlarge locking degree of a certain bolt is generated, the embedded block 12 changes due to the embedded state, the trapezoidal bottom of the embedded block slides to the position between two waists, so that the embedded block 12 is clamped at a certain height of the embedded groove 23, the first flange 11 can be controlled to only move along the axial direction of the butt joint pipeline 20 in the fastening process, the first flange 11 and the second flange 21 are always kept in the normal position, and the phenomenon that the sealing ring is unevenly compressed and deformed due to the uneven locking degree to influence the stability of the vacuum degree is prevented.
The fit clearance between the insert 12 and the insert groove 23 is not more than 0.5 mm. The smaller fit clearance can improve the control stability degree of the vacuum pump, and further ensure the stability of the vacuum degree. The mating surfaces of the first flange 11 and the second flange 21 are also provided with gaskets, but they are not the technical features of the present invention, and are shown in the drawings.
The cross section of the caulking groove 23 in a plan view may be an isosceles trapezoid, a right trapezoid, or the like, as long as the shape of a horn that opens from a notch formed in the annular protrusion 22 of the caulking groove 23 to the caulking groove 23 is satisfied.
The bottom of second flange 21 is provided with fixing base 31, be connected with bolt 32 on the fixing base 31, bolt 32 rotates through the round pin axle with fixing base 31 and is connected, all be equipped with breach 33 on the outside circumference of first flange 11 and second flange 21 so that bolt 32 rotates the embedding, threaded connection has locking handle wheel 34 on the bolt 32. Thus, when the first flange 11 and the second flange 21 are fixedly connected, the bolt 32 only needs to be rotated to be embedded into the notch 33, and then locking can be achieved by rotating the locking handle wheel 34, so that the locking is convenient and fast.
In addition, it should be noted that, in the present invention, the insert 12, the caulking groove 23, the bolt 32, etc. may be correspondingly disposed in a plurality, and are uniformly distributed on the circumference of the flange, so as to further improve the stability of the control and the uniformity of the fastening.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. The utility model provides a vacuum heat treatment device for hardware processing, includes vacuum pipe (10) and butt joint pipeline (20), the tip of vacuum pipe (10) is provided with first flange (11), the tip of butt joint pipeline (20) is provided with second flange (21), its characterized in that, the periphery edge of second flange (21) is equipped with annular arch (22), just the inboard of annular arch (22) is equipped with caulking groove (23), the overlook cross-section of caulking groove (23) is trapezoidal and the breach area that forms on annular arch (22) is less than groove bottom surface area, be equipped with bellied abaculus (12) on the outside circumference of first flange (11), the cross-section complete shape of abaculus (12) and caulking groove (23) is with just clearance fit, first flange (11) pass through bolt fixed connection with second flange (21).
2. The vacuum heat treatment device for hardware processing as claimed in claim 1, characterized in that the fit clearance between the insert block (12) and the insert groove (23) is not more than 0.5 mm.
3. The vacuum heat treatment device for hardware processing according to claim 1, wherein the cross section of the caulking groove (23) in plan view is an isosceles trapezoid.
4. The vacuum heat treatment device for hardware processing according to claim 1, characterized in that a fixing seat (31) is arranged at the bottom of the second flange (21), a bolt (32) is connected to the fixing seat (31), the bolt (32) is rotatably connected with the fixing seat (31) through a pin shaft, a notch (33) is formed in the outer circumference of the first flange (11) and the outer circumference of the second flange (21) so that the bolt (32) can be rotatably embedded, and a locking handle wheel (34) is connected to the bolt (32) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922500461.6U CN211227252U (en) | 2019-12-31 | 2019-12-31 | Vacuum heat treatment device for hardware processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922500461.6U CN211227252U (en) | 2019-12-31 | 2019-12-31 | Vacuum heat treatment device for hardware processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211227252U true CN211227252U (en) | 2020-08-11 |
Family
ID=71935837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922500461.6U Expired - Fee Related CN211227252U (en) | 2019-12-31 | 2019-12-31 | Vacuum heat treatment device for hardware processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211227252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321116A (en) * | 2022-03-14 | 2022-04-12 | 深圳市中航环海建设工程有限公司 | Adjustable connecting piece of tubular structure |
-
2019
- 2019-12-31 CN CN201922500461.6U patent/CN211227252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321116A (en) * | 2022-03-14 | 2022-04-12 | 深圳市中航环海建设工程有限公司 | Adjustable connecting piece of tubular structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20211231 |