CN204094623U - The fixture of R surfaces of compressor blades many rows grinding and accurate grinding frock - Google Patents
The fixture of R surfaces of compressor blades many rows grinding and accurate grinding frock Download PDFInfo
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- CN204094623U CN204094623U CN201420495341.6U CN201420495341U CN204094623U CN 204094623 U CN204094623 U CN 204094623U CN 201420495341 U CN201420495341 U CN 201420495341U CN 204094623 U CN204094623 U CN 204094623U
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Abstract
The utility model provides fixture and the accurate grinding frock of a kind of R surfaces of compressor blades many rows grinding, belongs to field of mechanical technique.It solve existing clamp and the not high problem of accurate grinding tooling production product quality out.This structure improved fixture comprises chuck body; Described chuck body has the locating slot holding blade and place; Described chuck body is also placed with the backing plate assemblies for auxiliary blade clamping; Top pad is provided with in described backing plate assemblies; Store energy transmission of pressure in described backing plate assemblies and then change the semi-solid medium pushing up pad position; Described chuck body is fixed with the drive source that can change semi-solid media collapse state, described backing plate assemblies is connected with drive source.The grinding subassembly that accurate grinding frock comprises grinding machine and refines R face; Described grinding subassembly comprises the emery wheel be arranged on grinding machine.This structure improved fixture and accurate grinding tool structure simple, high-quality product can be produced.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of fixture, the fixture of particularly a kind of R surfaces of compressor blades many rows grinding.
The utility model belongs to field of mechanical technique, relates to a kind of frock, particularly a kind of accurate grinding frock.
Background technology
Rotating air conditioner compressor blade is one of most important sliding part of compressor.During work, blade simultaneously with four feature contacts and the friction such as the upper and lower cylinder cap of compressor, piston and cylinder, and cylinder is divided into two closed spaces by the R face of blade and piston external diameter.When compressor rotates, by the Volume Changes in these two spaces, take turns to carry out air-breathing and compression, complete the working cycles of compressor.Because compressor utilizes blade and other parts by contact and slip is carried out airtight, so the required precision of blade is high.
And the processing in blade R face needs to use grinder wheel, this is also a difficult problem for grinder wheel.Along with the increase of access times, grinder wheel often uses and once will produce wearing and tearing to wheel face, affects the precision of following converted products, therefore, be the operation that routine must be carried out for the shaping finishing of grinder wheel during machining, but shaping finishing is again a bottleneck concerning emery wheel.What the usual producer adopted is after grinding terminates, carry out finishing further again to product reach required precision, so not only adds processing cost, also can extend and produce the duration.
In addition, household air-conditioner compressor volume of production and marketing in 2010 is more than 10,000 ten thousand, and consider that part is twin-tub product, the volume of production and marketing of actual blade is more than 13,000 ten thousand.Can stablize in order to ensure in enormous quantities, high-precision production, efficiently, economically carry out, existing processing method is generally be placed on organizing blade equably in dividing plate more, utilizes to compress to sell to compress corresponding dividing plate, realizes processing together.But the kind of blade is a lot, and the size of R, gauge, width dimensions are different, and specification reaches more than 200 kinds.Because blade dimensions changes, the size of dividing plate also will change thereupon, and the position of so corresponding compression pin also will change, and the product generally speaking often processing a kind of specification must change whole fixture, extremely wastes.Can stablize in order to ensure in enormous quantities, high-precision production, efficiently, economically carry out, must improve installation method during blade R face accurate grinding, clamping means, modification method.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes the fixture of a kind of R surfaces of compressor blades many rows grinding, and the technical problems to be solved in the utility model is the blade processing how facilitating different size.
The utility model and also proposed a kind of accurate grinding frock with above-mentioned fixture, the technical problems to be solved in the utility model how to produce high-quality blade.
The purpose of this utility model realizes by following technical proposal: the fixture of a kind of R surfaces of compressor blades many rows grinding, comprises chuck body; Described chuck body has the locating slot holding blade and place; It is characterized in that, described chuck body is also placed with the backing plate assemblies for auxiliary blade clamping; Top pad is provided with in described backing plate assemblies; Store energy transmission of pressure in described backing plate assemblies and then change the semi-solid medium pushing up pad position; Described chuck body is fixed with the drive source that can change semi-solid media collapse state, described backing plate assemblies is connected with drive source.
Be used for the backing plate assemblies of auxiliary blade clamping by placing in chuck body, when each need the product carrying out changing different size time, only backing plate assemblies need be taken off and change, and whole fixture need not be changed, save the resources of production and production cost.In addition, utilize the medium that semi-solid medium is propagation pressure, changed the position of top pad by the compressive state changing semi-solid medium, just can change the thrust to blade.What such mode was more common directly utilize drive source concerning can ensure the mode of pressuring blade pressure more on average, more steady.
In the fixture of above-mentioned R surfaces of compressor blades many rows grinding, described backing plate assemblies comprises backing plate body; Be provided with portable plate in described backing plate body, backing plate body is divided into storage chamber and variable volume chamber by described portable plate; Described semi-solid medium is placed on and stores in chamber; The chamber wall in described storage chamber offers several shoulder holes, and described top pad is located in shoulder hole.
By being provided with one piece of portable plate in backing plate body, just backing plate body two spaces are separated into easily, certainly, the size of portable plate must meet two spaces can be made to be formed airtight and can ensure that portable plate can also carry out translation under the driving of drive source.Again semi-solid medium is placed in addition and stores in chamber, top pad is located in shoulder hole, change the requirement of the volume storing chamber after portable plate translation can be met, and then change the compressive state of semi-solid medium, to facilitate the thrust controlling blade.
In the fixture of above-mentioned R surfaces of compressor blades many rows grinding, described top pad has head end and tail end, and described head end offers annular groove, is embedded with O RunddichtringO in described annular groove; Described O RunddichtringO one end leans with top pad, and the sidewall of the other end and shoulder hole leans; Tail end and the backing plate assemblies of described top pad lean.
By offering annular groove on head end, O RunddichtringO being embedded in annular groove, just by the sealing of storage chamber, can preventing the semi-solid medium stored in chamber from leaking from groove, affecting internal pressure, hinder top pad to change position.
In the fixture of above-mentioned R surfaces of compressor blades many rows grinding, described drive source is hydraulic cylinder or cylinder; Described drive source has piston rod; The chamber wall of described variable volume chamber offers several installing holes; Described piston rod to be located in variable volume chamber by installing hole and to lean with portable plate; Described semi-solid medium is butter or vaseline.
In the utility model, no matter be that hydraulic cylinder or cylinder can meet instructions for use, by the piston rod of drive source and portable plate are abutted against setting, when drive source starts, piston rod moves, promotion portable plate is synchronized with the movement, portable plate motion can change the volume of backing plate body internal memory storage chamber and variable volume chamber, when needs compress blade, only drive source need be driven, make piston rod towards blade one lateral movement, moving active plate, make the smaller volume in storage chamber, pressure so in chamber will increase, semi-solid medium is compressed, transmission of pressure gives top pad, top pad moves towards the direction away from drive source, blade is compressed.When needs take out blade, only piston rod need be made slowly to move towards the direction away from blade, portable plate can automatically reply under the effect of High Voltage storing chamber, along with the reply of portable plate, the volume storing chamber also slowly becomes large, pressure also reduces thereupon, and top pad is also slowly pushed back a part to storing in chamber under the atmospheric effect in the external world, and blade is just released.In addition, the quantity of drive source is in this no limit, as long as placement location is appropriate, portable plate can be promoted reposefully.
In the fixture of above-mentioned R surfaces of compressor blades many rows grinding, described backing plate assemblies comprises backing plate body, has storage chamber in described backing plate body, and described semi-solid medium is placed on and stores in chamber; Described backing plate body offers several shoulder holes, and described top pad is located in shoulder hole.
Storing chamber by being provided with in backing plate body, being placed on by semi-solid medium and storing in chamber, as long as the volume so storing chamber changes, the compressive state of semi-solid medium also can change.In addition, backing plate body offers several shoulder holes, top pad is installed in shoulder hole, top pad generation change in location can be driven by the change of the compressive state of semi-solid medium thus compress blade.
In the fixture of above-mentioned R surfaces of compressor blades many rows grinding, described top pad has annular boss, and the sidewall of described annular boss and shoulder hole leans; Described annular boss is provided with spring, and described spring one end and annular boss abut against, and the cascaded surface of the other end and shoulder hole abuts against.
By being provided with annular boss on the pad of top, and allowing the sidewall of annular boss and shoulder hole lean, so just will store chamber sealing, prevent the semi-solid medium stored in chamber from leaking from groove, affect internal pressure, hinder top pad to change position.And the sidewall due to annular boss and shoulder hole on the pad of top is formed and seal, by the effect of drive source, storage cavity volume is diminished, the semi-solid medium in storage chamber can give the thrust of a top pad axially-movable, plays clamping action to blade.In addition, annular boss is provided with spring, spring makes to push up pad and has the movement tendency being reduced to and storing in chamber all the time, after blade processing completes, by the effect of spring, top pad can be made to reset.
In the fixture of above-mentioned R surfaces of compressor blades many rows grinding, described drive source is hydraulic cylinder or cylinder; Described drive source has piston rod; The chamber wall in described storage chamber offers installing hole, and described piston rod is located in installing hole; Described semi-solid medium is butter or vaseline.
Vaseline or butter viscosity greatly, not easily leak, and can reduce the requirement each part of driving mechanism being made to precision as medium.Meanwhile, adopt butter or vaseline as pressure transmission medium, by handling the piston rod of drive source, eliminating the components and parts such as oil pump, simplifying driving mechanism, reducing production cost.
There is an accurate grinding frock for above-mentioned fixture, it is characterized in that, the grinding subassembly that described accurate grinding frock also comprises grinding machine and refines R face; Described grinding subassembly comprises the emery wheel be arranged on grinding machine.
The grinding of certain limit can be carried out by emery wheel to R face, ensure its basic accuracy.
In above-mentioned accurate grinding frock, described grinding subassembly also comprises the diamond roller being arranged on assistant grinding below emery wheel; Described diamond roller has the bulge loop that several are evenly distributed, the crowning radius of described bulge loop is less than the R radius surface of blade.
Because emery wheel can produce wearing and tearing when processing, the corase grind of later batch blade can only be used for, therefore also need to carry out follow-up finishing, just can carry out the fine grinding in blade R face.The utility model selects diamond roller to carry out assistant grinding, and the hardness of diamond roller is large, is in use not easy to produce wearing and tearing.Much organize blade owing to will process simultaneously, on diamond roller, be therefore also provided with several bulge loops equal with processed blade row, adjacent bulge loop will be equal to the spacing of adjacent processed blade mutually with the distance between bulge loop.In addition, the crowning radius of adamantine bulge loop is less than the R radius surface equaling blade, and the height of bulge loop is greater than the radius value of blade, utilizes numerical control programming can process identical with the radius of blade, that row is identical radius R annular groove like this on emery wheel.
Compared with prior art, the fixture of this R surfaces of compressor blades many rows grinding and accurate grinding frock tool have the following advantages:
1, be used for the barrier assembly of auxiliary blade isolation by placing in chuck body, when each need the product carrying out changing different size time, only barrier assembly need be taken off and change, and whole fixture need not be changed, save the resources of production and production cost.
2, utilize the medium that semi-solid medium is propagation pressure, changed the position of top pad by the compressive state changing semi-solid medium, realize the change of the thrust to blade.Can more on average, more reposefully to pressuring blade.
3, by arranging the special diamond roller of shape, size in the below of emery wheel, the emery wheel of the blade R that can be used for sizes is revised, high-precision blade can be produced.
Accompanying drawing explanation
Fig. 1 is the fixture of this R surfaces of compressor blades many rows grinding and the perspective view of accurate grinding frock embodiment one.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the A portion enlarged drawing of Fig. 2.
Structural representation when Fig. 4 is the backing plate assemblies compression blade of embodiment one.
Fig. 5 is the structural representation of grinding subassembly.
Fig. 6 is the direction of motion schematic diagram of grinding subassembly.
Fig. 7 is the fixture of this R surfaces of compressor blades many rows grinding and the structural representation of accurate grinding frock embodiment two.
Fig. 8 is the B portion enlarged drawing of Fig. 7.
In figure, 1, chuck body; 2, locating slot; 3, backing plate body; 3a, storage chamber; 3a1, shoulder hole; 3b, variable volume chamber; 3b1, installing hole; 3c, portable plate; 4, pad is pushed up; 4a, head end; 4a1, annular boss; 4b, tail end; 5, drive source; 5a, piston rod; 6, O RunddichtringO; 7, spring; 8, grinding machine; 9, emery wheel; 9a, annular groove; 10, diamond roller; 10a, bulge loop; 11, blade.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one:
As shown in Figures 1 to 4, the fixture of a kind of R surfaces of compressor blades many rows grinding, comprises chuck body 1, chuck body 1 has the locating slot 2 holding blade 11 and place.Common fixture arranges compressing member on fixture, by the motion of compressing member by clamp pressing, because the spacing of adjacent compressing member on fixture is constant, the product therefore at every turn changing one group of different size carries out processing just to be needed again to change whole fixture, causes huge waste.The utility model adopts the backing plate assemblies being placed with in chuck body 1 and clamping for auxiliary blade 11, is provided with top pad 4 in backing plate assemblies.When each needs carry out the product changing different size, only backing plate assemblies need be taken off and change, and whole fixture need not be changed, save the resources of production and production cost.In addition, in backing plate assemblies, store energy transmission of pressure and then change the semi-solid medium pushing up pad 4 position, chuck body 1 is fixed with the drive source 5 that can change semi-solid media collapse state, backing plate assemblies is connected with drive source 5.The medium utilizing semi-solid medium to be propagation pressure, realizes the change of the thrust to blade 11, more common mode can ensure pressure more on average, more steady.
As shown in Figure 3, Figure 4, backing plate assemblies comprises backing plate body 3, portable plate 3c is provided with in backing plate body 3, backing plate body 3 is divided into storage chamber 3a and variable volume chamber 3b by portable plate 3c, certainly, the size of portable plate 3c must meet and two spaces can be formed airtight and can ensure that portable plate 3c can also produce translation under the driving of drive source 5.Be placed on by semi-solid medium more in addition and store in the 3a of chamber, the chamber wall of storage chamber 3a offers several shoulder hole 3a1s corresponding with blade 11, top pad 4 is located in shoulder hole 3a1.Can meet the requirement changing the volume storing chamber 3a after portable plate 3c translation like this, and then change the compressive state of semi-solid medium, to facilitate the thrust controlled blade 11.Top pad 4 has head end 4a and tail end 4b, head end 4a offers annular groove, O RunddichtringO 6 is embedded with in annular groove, O RunddichtringO 6 one end leans with top pad 4, the sidewall of the other end and shoulder hole 3a1 leans, and just storage chamber 3a can be sealed, prevent the semi-solid medium stored in the 3a of chamber from leaking from shoulder hole 3a1, affect internal pressure, hinder top pad 4 to change position.
In addition, drive source 5 can meet instructions for use for hydraulic cylinder or cylinder, drive source 5 has piston rod 5a, the chamber wall of variable volume chamber 3b offers several installing holes 3b1, and piston rod 5a to be located in variable volume chamber 3b by installing hole 3b1 and to lean with portable plate 3c.When drive source 5 starts, piston rod 5a moves, promote portable plate 3c to be synchronized with the movement, portable plate 3c motion can change the volume of backing plate body 3 internal memory storage chamber 3a and variable volume chamber 3b, when needs compress blade 11, only drive source 5 need be driven, make piston rod 5a towards blade 11 1 lateral movement, moving active plate 3c, makes the smaller volume in the 3a of storage chamber, and so the pressure stored in the 3a of chamber will increase, semi-solid medium is compressed, transmission of pressure gives top pad 4, and top pad 4 moves towards the direction away from drive source 5, is compressed by blade 11.When needs take out blade 11, only piston rod 5a need be made slowly to move towards the direction away from blade 11, portable plate 3c can automatically reply under the effect of High Voltage storing chamber 3a, along with the reply of portable plate 3c, the volume storing chamber 3a also slowly becomes large, pressure is also along with reduction, and top pad 4 is also slowly pushed back a part to storing in the 3a of chamber under the atmospheric effect in the external world, and blade 11 is just released.In addition, the quantity of drive source 5 is in this no limit, as long as placement location is appropriate, portable plate 3c can be promoted reposefully.Semi-solid medium is butter or vaseline, because vaseline and butter viscosity are greatly, not easily leaks, and can reduce the requirement each part of driving mechanism being made to precision as medium.Meanwhile, adopt butter or vaseline as pressure transmission medium, by handling the piston rod 5a of drive source 5, eliminating the components and parts such as oil pump, simplifying driving mechanism, reducing production cost.
As shown in Figure 1 and Figure 2, a kind of accurate grinding frock with above-mentioned fixture, the grinding subassembly also comprising grinding machine 8 and refine R face, grinding subassembly comprises the emery wheel 9 (this is not shown in FIG.) be arranged on grinding machine 8.Can first carry out corase grind to R face by emery wheel 9 to cut, ensure its basic accuracy.Grinding subassembly also comprises the diamond roller 10 being arranged on and revising emery wheel below emery wheel 9.Because emery wheel can produce wearing and tearing when processing, cause the R face scale error processed large, therefore also need to carry out follow-up finishing, the utility model selects diamond roller 10 to carry out assistant grinding, the hardness of diamond roller 10 is large, in use be not easy to produce wearing and tearing, therefore very applicable.
Further, as shown in Figure 5, emery wheel 9 have several annular groove 9as identical with blade 11 thickness.Owing to will process a lot of group blade 11 simultaneously, on emery wheel 9, be therefore also provided with several annular groove 9as equal with blade 11 thickness, the thickness of the barrier assembly that adjacent annular groove 9a and the distance between annular groove 9a will be used for isolated blade 11 with every part is equal to mutually.In addition, diamond roller 10 has the bulge loop 10a corresponding with annular groove 9a, the crowning radius of bulge loop 10a is less than the R radius surface of blade 11, utilizes the digital control system of grinding machine, easily can process the R radius of different size.
Embodiment two:
The present embodiment with the structure of embodiment one and principle substantially identical, different place is: as shown in Figure 7, Figure 8, backing plate assemblies comprises backing plate body 3, have in backing plate body 3 and store chamber 3a, semi-solid medium is placed on and stores in the 3a of chamber, backing plate body 3 offers the shoulder hole 3a1 that several are corresponding with blade 11, top pad 4 is located in shoulder hole 3a1 and one end and barrier assembly lean.Storing chamber 3a by being provided with in backing plate body 3, being placed on by semi-solid medium and storing in the 3a of chamber, as long as the volume so storing chamber 3a changes, the compressive state of semi-solid medium also can change.In addition, backing plate body 3 offers several shoulder holes 3a1, top pad 4 is installed in shoulder hole 3a1, similar with embodiment one, top pad 4 can be driven change in location to occur thus compresses blade 11 by the change of the compressive state of semi-solid medium.Top pad 4 has annular boss 4a1, and the sidewall of annular boss 4a1 and shoulder hole 3a1 leans, and so just will store chamber 3a and seal, and prevents the semi-solid medium stored in the 3a of chamber from leaking from groove, affects internal pressure, hinders top pad 4 to change position.Can make to store chamber 3a smaller volume by the effect of drive source 5 in addition, the semi-solid medium stored in the 3a of chamber can give the thrust of pushing up pad 4 one axially-movables, plays clamping action to blade 11.Annular boss 4a1 is provided with spring 7, spring 7 one end and annular boss 4a1 abut against, and the cascaded surface of the other end and shoulder hole 3a1 abuts against.In addition, annular boss 4a1 is provided with spring 7, spring 7 makes to push up pad 4 and has the movement tendency being reduced to and storing in the 3a of chamber all the time, after blade 11 machines, by the effect of spring 7, top pad 4 can be made to reset.
In addition, drive source 5 also can meet instructions for use for hydraulic cylinder or cylinder, and drive source 5 has piston rod 5a, and the chamber wall of storage chamber 3a offers installing hole 3b1, and piston rod 5a is located in installing hole 3b1.When needs compress blade 11, driving drive source 5, piston rod 5a is moved in storage chamber 3a, and store the smaller volume of chamber 3a, semi-solid medium is compressed, and top pad 4 is forced to mobile compression blade 11; When after blade 11 completion of processing, drive source 5 makes piston rod 5a move towards away from the direction storing chamber 3a, and store chamber 3a inner volume and become large, pressure also just reduces thereupon, under the elastic force of spring 7 and the pressure effect of external atmosphere pressure, top pad 4 is slowly returned to and stores in the 3a of chamber.
Claims (9)
1. a fixture for R surfaces of compressor blades many rows grinding, comprises chuck body (1); Described chuck body (1) has the locating slot (2) that accommodation blade (11) is placed; It is characterized in that, described chuck body (1) is also placed with the backing plate assemblies clamped for auxiliary blade (11); Top pad (4) is provided with in described backing plate assemblies; Store energy transmission of pressure in described backing plate assemblies and then change the semi-solid medium pushing up pad (4) position; Described chuck body (1) is fixed with the drive source (5) that can change semi-solid media collapse state, described backing plate assemblies is connected with drive source (5).
2. the fixture of R surfaces of compressor blades many rows according to claim 1 grinding, is characterized in that: described backing plate assemblies comprises backing plate body (3); Be provided with portable plate (3c) in described backing plate body (3), backing plate body (3) is divided into storage chamber (3a) and variable volume chamber (3b) by described portable plate (3c); Described semi-solid medium is placed on and stores in chamber (3a); The chamber wall of described storage chamber (3a) offers several shoulder holes (3a1), and described top pad (4) is located in shoulder hole (3a1).
3. the fixture of R surfaces of compressor blades many rows according to claim 2 grinding, it is characterized in that: described top pad (4) has head end (4a) and tail end (4b), described head end (4a) offers annular groove, in described annular groove, is embedded with O RunddichtringO (6); Described O RunddichtringO (6) one end leans with top pad (4), and the sidewall of the other end and shoulder hole (3a1) leans; Tail end (4b) and the backing plate assemblies on described top pad (4) lean.
4. the fixture of R surfaces of compressor blades many rows according to claim 2 grinding, is characterized in that: described drive source (5) is hydraulic cylinder or cylinder; Described drive source (5) has piston rod (5a); The chamber wall of described variable volume chamber (3b) offers several installing holes (3b1); Described piston rod (5a) to be located in variable volume chamber (3b) by installing hole (3b1) and to lean with portable plate (3c); Described semi-solid medium is butter or vaseline.
5. the fixture of R surfaces of compressor blades many rows according to claim 1 grinding, it is characterized in that: described backing plate assemblies comprises backing plate body (3), have storage chamber (3a) in described backing plate body (3), described semi-solid medium is placed on and stores in chamber (3a); Described backing plate body (3) offers several shoulder holes (3a1), and described top pad (4) is located in shoulder hole (3a1).
6. the fixture of R surfaces of compressor blades many rows according to claim 5 grinding, it is characterized in that: described top pad (4) has annular boss (4a1), described annular boss (4a1) leans with the sidewall of shoulder hole (3a1); Described annular boss (4a1) is provided with spring (7), described spring (7) one end and annular boss (4a1) abut against, and the cascaded surface of the other end and shoulder hole (3a1) abuts against.
7. the fixture of R surfaces of compressor blades many rows according to claim 5 grinding, is characterized in that: described drive source (5) is hydraulic cylinder or cylinder; Described drive source (5) has piston rod (5a); The chamber wall of described storage chamber (3a) offers installing hole (3b1), and described piston rod (5a) is located in installing hole (3b1); Described semi-solid medium is butter or vaseline.
8. there is an accurate grinding frock for fixture described in any one in claim 1 to 7, it is characterized in that, the grinding subassembly that described accurate grinding frock also comprises grinding machine (8) and refines R face; Described grinding subassembly comprises the emery wheel (9) be arranged on grinding machine (8).
9. the accurate grinding frock with above-mentioned fixture according to claim 8, is characterized in that: described grinding subassembly also comprises the diamond roller (10) being arranged on emery wheel (9) below assistant grinding; Described diamond roller (10) has several evenly distributed bulge loops (10a), the crowning radius of described bulge loop (10a) is less than the R radius surface of blade (11).
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| CN201420495341.6U CN204094623U (en) | 2014-08-29 | 2014-08-29 | The fixture of R surfaces of compressor blades many rows grinding and accurate grinding frock |
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| CN201420495341.6U CN204094623U (en) | 2014-08-29 | 2014-08-29 | The fixture of R surfaces of compressor blades many rows grinding and accurate grinding frock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033844A (en) * | 2015-06-08 | 2015-11-11 | 朱德仲 | Storage type abrasive wheel mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033844A (en) * | 2015-06-08 | 2015-11-11 | 朱德仲 | Storage type abrasive wheel mechanism |
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