CN109304566A - A kind of spiral case welder and its application method - Google Patents
A kind of spiral case welder and its application method Download PDFInfo
- Publication number
- CN109304566A CN109304566A CN201811144962.9A CN201811144962A CN109304566A CN 109304566 A CN109304566 A CN 109304566A CN 201811144962 A CN201811144962 A CN 201811144962A CN 109304566 A CN109304566 A CN 109304566A
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- Prior art keywords
- spiral case
- fixedly connected
- positioning
- plate
- locating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The present invention relates to welder technical fields, and disclose a kind of spiral case welder, including welding bench, the inner surface of the welding bench is fixedly connected with positioning tube, locating rod is slidably connected in the middle part of the positioning tube, one end of the locating rod is fixedly connected with the loading plate above positioning tube, and the transverse slat positioned at locating rod two sides is fixedly connected at the top of the positioning tube, and the side of the transverse slat is connected with cross bar.The spiral case welder and its application method increase the stability of locating rod when moving by the effect of positioning tube, locating rod is avoided to shake back and forth when moving, cause loading plate to shake back and forth, causes spiral case mobile, reduce the precision of welding, utilize the effect of cross bar, so that it is directly fixed after locating rod is mobile, it prevents loading plate to be affected by gravity, locating rod is driven to slide automatically downwards, it causes spiral case to slide downwards automatically, spiral case can not be welded.
Description
Technical field
The present invention relates to welder technical field, specially a kind of spiral case welder and its application method.
Background technique
Spiral case is the abbreviation of scroll casing type flume, its shape is like hodmadod, therefore usually abbreviation spiral case, to guarantee guide
Water dispenser structure uniformly supplies water, so the section of spiral case is gradually reduced, while it can form necessary circular rector before water distributor to subtract
The working strength of light water distributor.
Spiral case is welded by multiple components, and existing most spiral case welder is welding
In termination process, by moving in external force, then welding bench, the position for causing spiral case to weld becomes spiral case
Change, the precision for causing spiral case to weld is not right, and welding bench can not adjust clamping device according to the height of spiral case
With the position of spiral case, cause clamping device that can only adapt to the spiral case of same specification.
Summary of the invention
The present invention provides a kind of spiral case welder and its application method, has and improve precision, strong applicability
The advantages of, solve most spiral case welder, in the welding process, spiral case by external force,
It is moved on welding bench again, the position for causing spiral case to weld changes, and the precision for causing spiral case to weld is not right,
And welding bench can not adjust the position of clamping device and spiral case, lead to clamping device according to the height of spiral case
It can only adapt to the spiral case problem of same specification.
The invention provides the following technical scheme: a kind of spiral case welder, including welding bench, the welding bench
Inner surface is fixedly connected with positioning tube, and locating rod is slidably connected in the middle part of the positioning tube, and one end of the locating rod is fixed
It is connected with the loading plate being located above positioning tube, is fixedly connected with the transverse slat positioned at locating rod two sides at the top of the positioning tube,
The side of the transverse slat is connected with cross bar, and one end of the cross bar runs through transverse slat and extends to the inside of locating rod, described
The support plate positioned at positioning tube side is fixedly connected at the top of welding bench, the side of the support plate is connected with sliding
The outside of support plate is run through and extended in one end of bar, the sliding bar, and the side of the support plate is fixedly connected with to be located at and slide
The locating piece of lever two sides, the side of the locating piece slidably connect positioning bolt, and one end of the positioning bolt is through fixed
Position block simultaneously extends to the inside of sliding bar, is fixedly connected with supporting block on the outer surface of the sliding bar, the supporting block it is interior
Surface pivots are connected with sliding shoe, and the both ends of the sliding shoe are rotatablely connected with the inner surface of two supporting blocks respectively, another
The side of the supporting block is fixedly connected with sliding panel, and the inner wall of the support plate is rotatably connected to support rod, the sliding panel
Side be fixedly connected with gag lever post, one end of the gag lever post is fixedly connected with limit plate, the flank threads of the limit plate
It is connected with caging bolt, one end of the caging bolt through limit plate and is rotatably connected to limited block, the side of the limited block
Face is rotatably connected to carrier block, and the side of the carrier block is fixedly connected with carrier bar, and the side of the carrier bar is fixedly connected
There is locating clip, the bottom of the locating clip and the top slide of loading plate connect.
Preferably, card slot is offered on the outer surface of the locating rod, the diameter of the cross bar is greater than the diameter of card slot, and
The outer surface of cross bar and the inner wall grafting of card slot.
Preferably, the other end of the locating rod is fixedly connected with the positioning plate inside positioning tube, the positioning plate
Outer surface and the inner wall of positioning tube be slidably connected, the area of the positioning plate is greater than the face of locating rod and positioning tube joint
Product.
Preferably, the other side of the support plate is fixedly connected with fixed block, and one end of the sliding bar is run through and extended
To the outside of fixed block, the outer surface of the sliding bar and the inner wall of fixed block are slidably connected.
Preferably, the both ends of the support rod are fixedly connected to the positioning pin outside support plate, the positioning pin
Outer surface and support plate outer surface be rotatablely connected, and the area of positioning pin be greater than support rod and support plate joint face
Product.
Preferably, open up fluted on the outer surface of the sliding bar, the diameter of the positioning bolt is greater than the straight of groove
Diameter, and the inner wall grafting of the outer surface of positioning bolt and groove.
A kind of spiral case welding method, the elder generation are placed on spiral case on the outer surface of loading plate, according to
The height of spiral case adjusts the height of loading plate, moves up or move down loading plate, is moved to suitable position
Afterwards, the inner wall for pushing cross bar to move to locating rod is limited, and then sliding bar is pulled to drive supporting block and the outside sidesway of sliding shoe
It is dynamic, then drive sliding panel rotate on support rod again and move inward, then drive gag lever post moves inward with limit plate, then
Make carrier block that carrier bar be driven to shrink inwardly with locating clip, drives position limiting clamp contact spiral case to be clamped, then turn
Caging bolt drives locating clip to do further clamping, then positioning bolt is pushed to pass through the inside that locating piece extends to sliding bar,
Two locating clips are limited with position limiting clamp, then spiral case is welded with welder again.
Preferably, the inner surface of the locating clip is fixedly connected with position limiting clamp, and the shape of the position limiting clamp is semicircle, institute
The radius for stating position limiting clamp is less than the radius of locating clip, and position limiting clamp is frosted pad.
Preferably, the positioning bolt need to keep horizontality in moving process, and the other side of locating piece is fixedly connected
There is fixed plate, one end of positioning bolt is run through and extends to the outside of positioning bolt, and fixed plate limits positioning bolt.
The present invention have it is following the utility model has the advantages that
1, the spiral case welder and its application method increase locating rod in movement by the effect of positioning tube
When stability, avoid locating rod from shaking back and forth when moving, loading plate caused to shake back and forth, cause spiral case mobile, reduce weldering
The precision connect prevents loading plate to be affected by gravity, band using the effect of cross bar so that directly fixing after locating rod is mobile
Dynamic locating rod slides downwards automatically, and spiral case is caused to slide downwards automatically, can not weld to spiral case, utilizes the work of sliding bar
With being welded so that locating clip is shunk inwardly automatically with position limiting clamp to spiral case, using the effect of supporting block, so that sliding shoe
Different angles can be rotated, is shunk inwardly convenient for locating clip and position limiting clamp, using the effect of positioning bolt, so that sliding bar
It is directly fixed after movement, it prevents spiral case from, by external force, strutting the constraint of locating clip and position limiting clamp in welding, reduces spiral case
Stability in welding.
2, the spiral case welder and its application method prevent support rod from rotating by the effect of positioning pin
When, it is skidded off from support plate, influences the movement of sliding panel, using the effect of gag lever post, increased the stability of limit plate, prevent from limiting
Position plate falls off, using the effect of caging bolt, so that position that can also be different by caging bolt movement after locating clip is fixed,
Convenient for further being limited to spiral case.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the side structure schematic view of Fig. 1；
Fig. 3 is the structural schematic diagram of support plate.
In figure: 1, welding bench；2, positioning tube；3, locating rod；4, loading plate；5, transverse slat；6, cross bar；7, positioning plate；8, it props up
Fagging；9, sliding bar；10, locating piece；11, positioning bolt；12, supporting block；13, sliding shoe；14, sliding panel；15, positioning pin；
16, support rod；17, gag lever post；18, limit plate；19, caging bolt；20, limited block；21, carrier block；22, carrier bar；23, fixed
Position folder；24, position limiting clamp.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3, a kind of spiral case welder, including welding bench 1 are please referred to, the inner surface of welding bench 1 is fixed to be connected
It is connected to positioning tube 2, by the effect of positioning tube 2, increases the stability of locating rod 3 when moving, avoids locating rod 3 when moving
It shakes back and forth, loading plate 4 is caused to shake back and forth, cause spiral case mobile, reduce the precision of welding, the middle part of positioning tube 2, which is slided, to be connected
It is connected to locating rod 3, one end of locating rod 3 is fixedly connected with the loading plate 4 above positioning tube 2, and the top of positioning tube 2 is fixed
It is connected with the transverse slat 5 positioned at 3 two sides of locating rod, the side of transverse slat 5 is connected with cross bar 6, using the effect of cross bar 6, so that
It is directly fixed after locating rod 3 is mobile, it prevents loading plate 4 to be affected by gravity, drives locating rod 3 is automatic downwards to slide, cause
Spiral case slides downwards automatically, can not weld to spiral case, and card slot is offered on the outer surface of locating rod 3, and the diameter of cross bar 6 is big
In the diameter of card slot, and the inner wall grafting of the outer surface of cross bar 6 and card slot, one end of cross bar 6 through transverse slat 5 and extend to positioning
The inside of bar 3, the other end of locating rod 3 are fixedly connected with the positioning plate 7 inside positioning tube 2, the outer surface of positioning plate 7 with
The inner wall of positioning tube 2 is slidably connected, and the area of positioning plate 7 is greater than the area of locating rod 3 and 2 joint of positioning tube, welding bench 1
Top is fixedly connected with the support plate 8 positioned at 2 side of positioning tube, and the side of support plate 8 is connected with sliding bar 9, utilizes cunning
The effect of lever 9 welds spiral case so that locating clip 23 is shunk inwardly automatically with position limiting clamp 24, utilizes supporting block 12
Effect, allows sliding shoe 13 to rotate different angles, shrinks inwardly convenient for locating clip 23 and position limiting clamp 24, utilize positioning
The effect of bolt 11, so that it is directly fixed after sliding bar 9 is mobile, prevent spiral case from, by external force, strutting positioning in welding
The constraint of folder 23 and position limiting clamp 24 reduces stability of the spiral case in welding, and the other side of support plate 8 is fixedly connected with fixation
The outside of fixed block is run through and extended in one end of block, sliding bar 9, and the outer surface of sliding bar 9 and the inner wall of fixed block slide and connect
It connects, the outside of support plate 8 is run through and extended in one end of sliding bar 9, and the side of support plate 8 is fixedly connected with positioned at sliding bar 9
The locating piece 10 of two sides, the side of locating piece 10 slidably connect positioning bolt 11, offer on the outer surface of sliding bar 9 recessed
Slot, the diameter of positioning bolt 11 are greater than the diameter of groove, and the inner wall grafting of the outer surface of positioning bolt 11 and groove, position spiral shell
One end of bolt 11 runs through locating piece 10 and extends to the inside of sliding bar 9, is fixedly connected with supporting block on the outer surface of sliding bar 9
12, the inner surface of supporting block 12 is rotatably connected to sliding shoe 13, the both ends of the sliding shoe 13 interior table with two supporting blocks 12 respectively
Face rotation connection, the side of another supporting block 12 are fixedly connected with sliding panel 14, and the inner wall of support plate 8 is rotatably connected to support
Bar 16, the both ends of support rod 16 are fixedly connected to the positioning pin 15 outside support plate 8, by the effect of positioning pin 15,
It prevents support rod 16 in rotation, is skidded off from support plate 8, influence the movement of sliding panel 14, the outer surface of positioning pin 15 and branch
The outer surface of fagging 8 is rotatablely connected, and the area of positioning pin 15 is greater than the area of support rod 16 and 8 joint of support plate, sliding
The side of plate 14 is fixedly connected with gag lever post 17, using the effect of gag lever post 17, increases the stability of limit plate 18, prevents from limiting
Plate 18 falls off, using the effect of caging bolt 19, so that can also be mobile different by caging bolt 19 after locating clip 23 is fixed
Position, convenient for further being limited to spiral case, one end of gag lever post 17 is fixedly connected with limit plate 18, the side of limit plate 18
Face is threaded with caging bolt 19, and one end of caging bolt 19 through limit plate 18 and is rotatably connected to limited block 20, limits
The side of block 20 is rotatably connected to carrier block 21, and the side of carrier block 21 is fixedly connected with carrier bar 22, the side of carrier bar 22
It is fixedly connected with locating clip 23, the bottom of locating clip 23 is connect with the top slide of loading plate 4.
A kind of spiral case welding method is first placed on spiral case on the outer surface of loading plate 4, according to water wheels
The height of machine spiral case adjusts the height of loading plate 4, moves up or move down loading plate 4, after being moved to suitable position,
The inner wall for pushing cross bar 6 to move to locating rod 3 is limited, and sliding bar 9 is then pulled to drive supporting block 12 and sliding shoe 13 outside
Side is mobile, then drives sliding panel 14 rotate on support rod 16 again and move inward, then drive gag lever post 17 and limit plate 18 to
Then medial movement makes carrier block 21 that carrier bar 22 be driven to shrink inwardly with locating clip 23, the inner surface of locating clip 23 is fixed
It is connected with position limiting clamp 24, the shape of position limiting clamp 24 is semicircle, and the radius of position limiting clamp 24 is less than the radius of locating clip 23, and limits
Folder 24 is frosted pad, drives position limiting clamp 24 to contact spiral case and is clamped, then turns caging bolt 19 and drive locating clip 23
Further clamping is done, then positioning bolt 11 is pushed to pass through the inside that locating piece 10 extends to sliding bar 9, positioning bolt 11 is moving
During dynamic, horizontality need to be kept, the other side of locating piece 10 is fixedly connected with fixed plate, and one end of positioning bolt 11 is run through
And the outside of positioning bolt 11 is extended to, fixed plate limits positioning bolt 11, to two locating clips 23 and position limiting clamp 24
It is limited, then spiral case is welded with welder again.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of spiral case welder, including welding bench (1), it is characterised in that: the inner surface of the welding bench (1) is solid
Surely it is connected with positioning tube (2), is slidably connected locating rod (3) in the middle part of the positioning tube (2), one end of the locating rod (3)
It is fixedly connected with the loading plate (4) being located above positioning tube (2), is fixedly connected at the top of the positioning tube (2) and is located at positioning
The side of the transverse slat (5) of bar (3) two sides, the transverse slat (5) is connected with cross bar (6), and one end of the cross bar (6) is through cross
Plate (5) and the inside for extending to locating rod (3) are fixedly connected with positioned at positioning tube (2) side at the top of the welding bench (1)
The side of support plate (8), the support plate (8) is connected with sliding bar (9), and one end of the sliding bar (9) is run through and prolonged
The outside of support plate (8) is extended to, the side of the support plate (8) is fixedly connected with the locating piece positioned at sliding bar (9) two sides
(10), the side of the locating piece (10) slidably connects positioning bolt (11), and one end of the positioning bolt (11) is through fixed
Position block (10) simultaneously extends to the inside of sliding bar (9), is fixedly connected with supporting block (12) on the outer surface of the sliding bar (9),
The inner surface of the supporting block (12) is rotatably connected to sliding shoe (13), and the both ends of the sliding shoe (13) are supported with two respectively
The inner surface of block (12) is rotatablely connected, and the side of another supporting block (12) is fixedly connected with sliding panel (14), the branch
The inner wall of fagging (8) is rotatably connected to support rod (16), and the side of the sliding panel (14) is fixedly connected with gag lever post (17), institute
The one end for stating gag lever post (17) is fixedly connected with limit plate (18), and the flank threads of the limit plate (18) are connected with caging bolt
(19), one end of the caging bolt (19) through limit plate (18) and is rotatably connected to limited block (20), the limited block
(20) side is rotatably connected to carrier block (21), and the side of the carrier block (21) is fixedly connected with carrier bar (22), described
The side of carrier bar (22) is fixedly connected with locating clip (23), and the bottom of the locating clip (23) and the top of loading plate (4) are sliding
Dynamic connection.
2. a kind of spiral case welder according to claim 1, it is characterised in that: outside the locating rod (3)
Offer card slot on surface, the diameter of the cross bar (6) is greater than the diameter of card slot, and the outer surface of cross bar (6) and card slot is interior
Wall grafting.
3. a kind of spiral case welder according to claim 1, it is characterised in that: the locating rod (3) it is another
One end is fixedly connected with the positioning plate (7) internal positioned at positioning tube (2), outer surface and positioning tube (2) of the positioning plate (7)
Inner wall is slidably connected, and the area of the positioning plate (7) is greater than the area of locating rod (3) and positioning tube (2) joint.
4. a kind of spiral case welder according to claim 1, it is characterised in that: the support plate (8) it is another
Side is fixedly connected with fixed block, and the outside of fixed block, the sliding bar are run through and extended in one end of the sliding bar (9)
(9) inner wall of outer surface and fixed block is slidably connected.
5. a kind of spiral case welder according to claim 1, it is characterised in that: the two of the support rod (16)
End is fixedly connected to the positioning pin (15) external positioned at support plate (8), the outer surface and support plate (8) of the positioning pin (15)
Outer surface rotation connection, and the area of positioning pin (15) be greater than support rod (16) and support plate (8) joint area.
6. a kind of spiral case welder according to claim 1, it is characterised in that: outside the sliding bar (9)
Open up fluted on surface, the diameter of the positioning bolt (11) is greater than the diameter of groove, and the outer surface of positioning bolt (11)
With the inner wall grafting of groove.
7. a kind of spiral case welding method, it is characterised in that: spiral case is placed on the outer of loading plate (4) by the elder generation
On surface, according to the height of spiral case, the height of loading plate (4) is adjusted, loading plate (4) are moved up or move down,
After being moved to suitable position, the inner wall for pushing cross bar (6) to move to locating rod (3) is limited, and then pulls sliding bar (9) band
Dynamic supporting block (12) are moved outward with sliding shoe (13), then sliding panel (14) is driven to rotate inside sidesway on support rod (16) again
It is dynamic, then gag lever post (17) is driven to move inward with limit plate (18), then make carrier block (21) drive carrier bar (22) and
Locating clip (23) is shunk inwardly, drives position limiting clamp (24) contact spiral case to be clamped, then turn caging bolt (19)
It drives locating clip (23) to do further clamping, then pushes positioning bolt (11) to pass through locating piece (10) and extend to sliding bar (9)
Inside, two locating clips (23) are limited with position limiting clamp (24), then spiral case is carried out with welder again
Welding.
8. a kind of spiral case welding method according to claim 7, it is characterised in that: the locating clip (23) it is interior
Surface is fixedly connected with position limiting clamp (24), and the shape of the position limiting clamp (24) is semicircle, and the radius of the position limiting clamp (24) is small
Radius in locating clip (23), and position limiting clamp (24) is frosted pad.
9. a kind of spiral case welding method according to claim 7, it is characterised in that: the positioning bolt (11) exists
In moving process, horizontality need to be kept, the other side of locating piece (10) is fixedly connected with fixed plate, and the one of positioning bolt (11)
The outside of positioning bolt (11) is run through and is extended at end, and fixed plate limits positioning bolt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144962.9A CN109304566A (en) | 2018-09-29 | 2018-09-29 | A kind of spiral case welder and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144962.9A CN109304566A (en) | 2018-09-29 | 2018-09-29 | A kind of spiral case welder and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109304566A true CN109304566A (en) | 2019-02-05 |
Family
ID=65225263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811144962.9A Pending CN109304566A (en) | 2018-09-29 | 2018-09-29 | A kind of spiral case welder and its application method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109304566A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112157392A (en) * | 2020-10-23 | 2021-01-01 | 江苏恒高电气制造有限公司 | Welding positioning device |
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| CN103042331A (en) * | 2012-12-10 | 2013-04-17 | 芜湖美的厨卫电器制造有限公司 | Positioning tooling for welding assembly of volute |
| CN107378292A (en) * | 2017-08-11 | 2017-11-24 | 王铭 | A kind of machine components welding method easy to use |
| CN207656289U (en) * | 2017-04-18 | 2018-07-27 | 宁夏飞天科技有限公司 | A kind of clamping device of mechanical processing |
| CN108453593A (en) * | 2018-05-31 | 2018-08-28 | 刘新娟 | A kind of Hardware fitting grinding device |
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|---|---|---|---|---|
| US3985995A (en) * | 1973-04-19 | 1976-10-12 | August Thyssen-Hutte Aktienges. | Method of making large structural one-piece parts of metal, particularly one-piece shafts |
| CN103028878A (en) * | 2012-11-26 | 2013-04-10 | 芜湖美的厨卫电器制造有限公司 | Locating fixture for volute welding |
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| CN207656289U (en) * | 2017-04-18 | 2018-07-27 | 宁夏飞天科技有限公司 | A kind of clamping device of mechanical processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112157392A (en) * | 2020-10-23 | 2021-01-01 | 江苏恒高电气制造有限公司 | Welding positioning device |
| CN112157392B (en) * | 2020-10-23 | 2022-05-20 | 江苏恒高电气制造有限公司 | Welding positioning device |
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Application publication date: 20190205 |