CN204449654U - A kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece - Google Patents
A kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece Download PDFInfo
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- CN204449654U CN204449654U CN201420863180.1U CN201420863180U CN204449654U CN 204449654 U CN204449654 U CN 204449654U CN 201420863180 U CN201420863180 U CN 201420863180U CN 204449654 U CN204449654 U CN 204449654U
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- tapering
- wall
- circular
- positioning disk
- welding
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Abstract
The utility model relates to a kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece, it is characterized in that comprising positioning disk, circular briquetting that tensioner ring that band breach and inwall have tapering and outer wall have tapering, the tapering of described circular briquetting mates with tensioner ring inwall tapering, and described annular workpieces inner ring is put with described band breach and inwall to be fastened on the central area of described positioning disk by securing member after coordinating outer wall to have conicity circular briquetting after having the tensioner ring of tapering.In the utility model, as long as by positioning disk by clamp of the prior art, when adopting laser weld wearing layer, due to the taper fit of the breach on tensioner ring and circular briquetting, make processed circular thin-wall workpiece inner wall uniform force, thus, after processing, processed annular workpieces is not yielding, to ensure the quality of product after laser overlaying welding wearing layer.
Description
Technical field
The utility model relates to a kind of fixture, especially a kind of annular workpieces outer surface heap welding clamp.
Background technology
Annular workpieces rotates hard seal as one, have very high requirement to the hardness of its outer surface, abrasion resistance, decay resistance, the raw material of these workpiece are all generally steel, thus, be after annular workpieces by steel car, also need the outer surface of annular workpieces to carry out surface modification treatment.Common method adopts supersonic cold gas spray or thermal spraying mode, and these two kinds of modes exist a lot of limitation.Now relatively more conventional technology is the mode adopting built-up welding, comprise manual build up welding, plasma automatic surfacing and laser melting coating (built-up welding), and laser melting coating is the welding method of a kind of advanced person adopted in recent years, with manual build up welding, plasma automatic surfacing, there are energy-conserving and environment-protective, uniformity is good, dilution rate is little, the feature that automaticity is high, namely annular workpieces is fixed on fixture, then laser irradiates surface of the work formation molten bath, pulverous specific alloy material is delivered in molten bath simultaneously, thus the wearing layer required for being formed.When annular workpieces is fixed on fixture, current commonsense method, need process annular workpieces with scroll chuck from inside to fix, adopt the workpiece that rapidoprint volume is large or wall thickness is thicker in this way, workpiece deformation amount after processing is little, and for thin-wall workpiece, heat during welding can not be distributed in time because material heat capacity is little, cause processed annular workpieces generation heat expansion phenomenon and loosen, in order to ensure carrying out smoothly of processing, timely tensioner scroll chuck is needed in process, machine rear annular workpieces and produce distortion when cooling, particularly 3 bearings, the degree of its distortion is even more serious, thus, annular workpieces after processing has not been circular, in order to ensure enough allowance, weld layer needs enough thickness, post-production workload is very large, and easily cause waste product.
Summary of the invention
For the deficiencies in the prior art, the technical problems to be solved in the utility model be to provide a kind of fixture make circular thin-wall workpiece in weld deposit process, produce heat expansion also not yielding especially bearing is indeformable.
For this reason, the utility model adopts following technical scheme to realize: a kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece, it is characterized in that comprising positioning disk, with breach and inwall has the circular briquetting that the tensioner ring of tapering and outer wall have tapering, the tapering of described circular briquetting mates with tensioner ring inwall tapering, described band breach and the tensioner ring that inwall has tapering is placed in described processed circular thin-wall workpiece, again described outer wall is had conicity circular briquetting embed described band breach and inwall there is tapering tensioner ring in after by securing member, circular briquetting is fastened on described positioning disk.
This structure of the present utility model, when annular workpieces expands with heat and contract with cold, after the circular briquetting that the breach had due to tensioner ring and the tapering of its inwall and outer wall have a tapering coordinates, on the one hand the thermal capacity of material is increased, the temperature rise of material eases up, under on the other hand tensioner ring has the effect of circular briquetting that certain elasticity has tapering at outer wall, along with annular workpieces expands during heating, ensure that annular workpieces does not loosen, during cooling, the periphery of its tensioner ring makes described processed annular workpieces Homogeneous cooling shrink with comprehensive contact of the inwall of processed annular workpieces, thus, all very even when processed annular workpieces heat expansion or shrinkage, still annular shape is kept after ensureing annular workpieces processing, simultaneously, quick despatch is realized to processed annular workpieces, clamping.
Described positioning disk is provided with some concentric circles graduation marks, fast and easy location is raised the efficiency.
Preferably described securing member is bolt, and the center of positioning disk has through hole, and bolt is through described through hole.
Preferably positioning disk side is provided with the minor axis with positioning disk concentric, for linking with scroll chuck.
In sum, the beneficial effects of the utility model are: make annular workpieces in process, produce the heat expansion also not yielding circularity especially ensureing its profile.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model fixture;
Fig. 2 is the structure chart of the utility model positioning disk;
Fig. 3 is the utility model tensioner ring and circular briquetting structure chart when being placed in positioning disk center;
Fig. 4 is the structure chart of tensioner ring.
Detailed description of the invention
As shown in the figure, a kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece comprises positioning disk 5, band breach and inwall have the tensioner ring 2 of tapering and outer wall has the circular briquetting 3 of tapering, the tapering of circular briquetting 3 mates with tensioner ring 2 inwall tapering, and annular workpieces 1 inner ring puts the central area to be fastened on positioning disk 5 after the circular briquetting 3 of cooperation after tensioner ring 2 by bolt 4.Wherein, by time fastening for processed annular workpieces, undertaken fastening by bolt, have through hole at the center of positioning disk, bolt, through described through hole, as long as screwing bolts, is pressed with in circular briquetting, is just given fastening by processed annular workpieces.Certainly, annular workpieces is fastened on after on positioning disk, adopts fixture of the prior art to be clamped by positioning disk, just can work.
When processed annular workpieces 1 adds man-hour and the rear generation of processing is expanded with heat and contract with cold, due to the breach 7 of tensioner ring 2 effect with band tapering circular briquetting mate after, tensioner ring 2 and then expands with heat and contract with cold, make by the annular workpieces inwall uniform force added, thus, ensure processed after annular workpieces indeformable, realize quick despatch, clamping simultaneously.Positioning disk 5 is provided with some concentric circles graduation marks, if add man-hour annular workpieces is aimed at graduation mark place just can, facilitate processed annular workpieces quick position to improve working (machining) efficiency.The side of positioning disk 5 is provided with the minor axis 6 with positioning disk concentric, as long as positioning disk just clamps by the outer shroud that in prior art, minor axis 6 clamped by the clamping bar of fixture.To realize laser overlaying welding processing.
Claims (4)
1. the fixture for the built-up welding of circular thin-wall outer surface of workpiece, it is characterized in that comprising positioning disk, circular briquetting that tensioner ring that band breach and inwall have tapering and outer wall have tapering, the tapering of described circular briquetting mates with tensioner ring inwall tapering, described band breach and the tensioner ring that inwall has tapering are placed in described processed circular thin-wall workpiece, more described outer wall is had conicity circular briquetting embed described band breach and inwall there is tapering tensioner ring in after by securing member, circular briquetting is fastened on described positioning disk.
2. according to a kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece according to claim 1, it is characterized in that described securing member is bolt (4), the center of described positioning disk has through hole, and described bolt is through described through hole.
3., according to a kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece according to claim 1, it is characterized in that on described positioning disk, one side is provided with some concentric circles graduation marks.
4. a kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece according to claim 1, is characterized in that the another side of described positioning disk is provided with the minor axis concentric with positioning disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863180.1U CN204449654U (en) | 2014-12-31 | 2014-12-31 | A kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863180.1U CN204449654U (en) | 2014-12-31 | 2014-12-31 | A kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204449654U true CN204449654U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420863180.1U Expired - Fee Related CN204449654U (en) | 2014-12-31 | 2014-12-31 | A kind of fixture for the built-up welding of circular thin-wall outer surface of workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204449654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588890A (en) * | 2014-12-31 | 2015-05-06 | 瑞安市激光应用工程示范中心有限公司 | Clamp for surfacing outer surface of thin-wall annular workpiece |
-
2014
- 2014-12-31 CN CN201420863180.1U patent/CN204449654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588890A (en) * | 2014-12-31 | 2015-05-06 | 瑞安市激光应用工程示范中心有限公司 | Clamp for surfacing outer surface of thin-wall annular workpiece |
| CN104588890B (en) * | 2014-12-31 | 2019-02-05 | 浙江久恒光电科技有限公司 | A kind of fixture for circular thin-wall outer surface of workpiece built-up welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |