CN110281086A - A kind of ceramic material revolving parts grinding technique of complex curve fitting - Google Patents
A kind of ceramic material revolving parts grinding technique of complex curve fitting Download PDFInfo
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- CN110281086A CN110281086A CN201910689562.4A CN201910689562A CN110281086A CN 110281086 A CN110281086 A CN 110281086A CN 201910689562 A CN201910689562 A CN 201910689562A CN 110281086 A CN110281086 A CN 110281086A
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- Prior art keywords
- revolving parts
- processed
- grinding
- ceramic material
- special
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/50—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground, e.g. strings
Abstract
The invention belongs to field of machining, it is related to a kind of ceramic material revolving parts grinding technique of complex curve fitting, it is proposed aiming at the problem that ceramic material revolving parts of current complex curve fitting process machining accuracy and processing efficiency is low, it includes being clamped on lathe chuck after part cooperates with special tooling clamping, special grinding apparatus is installed on high-speed motor, it generates numerical control workshop program and determines that grinding controls program, determine single layer abrasive depth, it runs grinding and controls program, the 4th step is repeated until processing thickness meets design requirement.The present invention is transformed existing centre numerically controlled lathe, so that the ceramic material revolving parts grinding dimensional accuracy and the promotion of form accuracy of complex curve fitting are realized, to meet job requirement.
Description
Technical field:
The invention belongs to field of machining, and in particular to a kind of ceramic material revolving parts mill of complex curve fitting
Cut processing technology.
Background technique:
Ceramic material is due to high temperature resistant, wear-resistant, and mechanical behavior under high temperature is stablized, and has in aerospace field extensive
Application potential is especially applied in various aircraft front ends position part manufacturing, collects the high performances such as solar heat protection, wave transparent, carrying, shock resistance
It is required that being integrated.Its shape is generally rotary type, and matched curve shape is extremely complex, is multistage secondary spline curve, and wall
It is thick smaller.And ceramic material is typical hard brittle material, can only use grinding.Ceramic material revolving parts are ground at present
It cuts and inside and outside circle is mostly used to be ground numerically control grinder, since ceramic material hardness is high, grinding tool serious wear in grinding process, processing efficiency
It is low；And due to lacking special equipment, grinding accuracy is low, and the line style precision being ground out differs larger with design requirement.
Literature search discovery by the prior art, at present grinds the ceramic material revolving parts of complex curve fitting
Cutting processing unit (plant) and method does not have pertinent literature introduction also, focuses mostly in the grinding process research based on numerically control grinder.Such as: text
Offer the mathematics that " complex revolving body workpiece numerical-controlled grinding modeling " establishes precise numerical control grinder processing complex revolving body part
Model has obtained NC machining model, but the document does not introduce grinding attachment related content, and proposes due to sand
Width problem is taken turns, there are still larger mismachining tolerances using existing grinding machine equipment processing revolving parts.
Summary of the invention:
The present invention is to overcome drawbacks described above, and the ceramic material revolving parts grinding for providing a kind of complex curve fitting adds
Work technique, the processing technology are realized based on improved centre numerically controlled lathe, and pass through rational design clamping tooling, Special grinding
Tool and numerical control program provide ceramic material complex revolving body part high-efficiency and precision control process, to realize complicated song
The ceramic material revolving parts grinding dimensional accuracy of line fitting and the promotion of form accuracy, to meet job requirement.
The technical solution adopted by the present invention is: a kind of ceramic material revolving parts grinding of complex curve fitting
Technique, processing used ceramic material revolving parts abrasive machining device includes: lathe chuck, lathe guide rail, knife rest base
Seat, high-speed motor, special grinding apparatus and special tooling, the lathe chuck axis is parallel with lathe guide rail, and the sliding of knife rest pedestal is set
Set on lathe guide rail, the high-speed motor is fixed on knife rest pedestal by support frame, and the output axis of high-speed motor with
The axis of lathe chuck is fixedly connected in sustained height, the special grinding apparatus with the output shaft of high-speed motor, the special tooling
It is clamped on lathe chuck, revolving parts to be processed are fixed on lathe chuck by special tooling；
Steps are as follows for specific processing technology:
Step 1: revolving parts to be processed and special tooling clamping are cooperated, special tooling is then clamped on lathe
On chuck；
Step 2: special grinding apparatus is fixed on high-speed motor, in process, the sand burning face of special grinding apparatus with to
Processing revolving parts remain point contact；
Step 3: according to the curvilinear structures of revolving parts to be processed, numerical control workshop program is generated, then to numerical control
Turning operation is coordinately transformed, so that it is determined that grinding controls program；
Step 4: determining single layer abrasive depth, under high-speed motor and lathe chuck rotary action, runs grinding control
Processing procedure sequence；
Step 5: after processing single layer revolving parts shape to be processed, step 4 is repeated, until revolving parts to be processed
Thickness meets design size.
Preferably, the special tooling includes outer retaining part and integral support portion, and the integral support portion is boss shape, and boss
The lug boss outer wall line style of shape matches with the inner cavity line style of revolving parts to be processed, and the outer retaining part is annular, and ring
The inner wall line style of shape matches with the outer wall line style of revolving parts to be processed, the lug boss of the outer retaining part and integral support portion
Revolving parts to be processed are realized by inside and outside collective effect and clamps and supports.
Preferably, the special grinding apparatus includes matrix and sand burning face, and the sand burning face is welded at the outer rim of matrix,
And the end face in sand burning face is arc structure, the diameter of circular arc is determined according to the curvature on revolving parts surface to be processed.
Preferably, the circular arc is 120 °.
The beneficial effects of the present invention are:
1, special grinding apparatus rotation is driven by high-speed motor, improves grinding speed, and using special grinding apparatus with it is to be added
The point contact mode of work revolving parts improves material removing rate, is highly suitable in ceramic material grinding, using number
Control lathe programming, it is ensured that machining accuracy is also reduced to operator's technical requirements.
2, it by changing the installation way and application specific grinding tool of workpiece, is missed to reduce to position in clamping times and processing
Difference reduces the influence factors such as process system stress deformation and grinding tool abrasion, to improve processing efficiency and machining accuracy.
Detailed description of the invention:
Fig. 1 is processing process figure；
Fig. 2 is the apparatus structure schematic diagram used of the invention；
Fig. 3 is the structural schematic diagram after special tooling and revolving parts to be processed assembly；
Fig. 4 is the structural schematic diagram of special grinding apparatus；
Fig. 5 is the longitudinal sectional view of Fig. 4；
Fig. 6 is the structural schematic diagram of revolving parts to be processed；
Wherein: 1 lathe chuck, 2 lathe guide rails, 3 knife rest pedestals, 4 high-speed motors, 5 special grinding apparatus, 501 matrixes,
502 sand burning faces, 503 location holes, 504 lightening holes, 6 special toolings, 601 outer retaining parts, 602 integral support portions, 7
Support, 701 bottom plates, 702 support plates, 703 pressing plates, 8 revolving parts to be processed.
Specific embodiment:
The present invention is a kind of ceramic material revolving parts grinding technique of complex curve fitting, the grinding work
The equipment that skill is relied on is to carry out inside and outside circle grinding function house of correction based on centre numerically controlled lathe to obtain, the number that the present embodiment is transformed
Control lathe be Shenyang machine tool plant production CAK50135di, basic parameter are as follows: lathe bed maximum rotating diameter be 500mm, guide rail across
Degree be 400mm, maximum length of cut be 1350m, on slide plate maximum rotating diameter be 300/280mm, speed of mainshaft 40-
1800rpm。
As shown in Fig. 2, the ceramic material revolving parts abrasive machining device of the complex curve fitting obtained after transformation, packet
It includes: lathe chuck 1, lathe guide rail 2, knife rest pedestal 3, high-speed motor 4, special grinding apparatus 5 and special tooling 6, the lathe chuck 1
Axis is parallel with lathe guide rail 2, and knife rest pedestal 3 is slidably arranged on lathe guide rail 2, and the high-speed motor 4 is solid by support frame 7
It is scheduled on knife rest pedestal 3, and the output axis of high-speed motor 4 and the axis of lathe chuck 1 are in sustained height, the special grinding apparatus
5 are fixedly connected with the output shaft of high-speed motor 4, and the special tooling 6 is clamped on lathe chuck 1, revolving body zero to be processed
Part 8 is fixed on lathe chuck 1 by special tooling 6.
Support frame as described above 7 includes 701, two support plates 702 of bottom plate and two pressing plates 703, and two support plates 702 are vertical right
Claim the two sides for being fixed on bottom plate 701, and bottom plate 701 is structure as a whole with support plate 702, is machined on support plate top for putting
The bore hole of high-speed motor is set, bore hole is consistent with 4 outside diameter of high-speed motor, and the pressing plate 703 is mounted on branch by bolt respectively
702 top of fagging, for high-speed motor 4 to be fixed in support plate 702.
As shown in Figure 3 and Figure 6, the special tooling 6 uses nylon material, and nylon material has hardness low, soft with part
Property contact, the advantages of being hardly damaged part, while its intensity is good, deformation will not be generated in process, the special tooling 6 is wrapped
Include outer retaining part 601 and integral support portion 602, the integral support portion 602 is boss shape, and the lug boss outer wall line style of boss shape with
The inner cavity line style of revolving parts 8 to be processed matches, the outer retaining part 601 be annular, and annular inner wall line style with to
The outer wall line style of processing revolving parts 8 matches, and the outer retaining part 601 is set on the outside of the lug boss of integral support portion 602,
The lug boss of the outer retaining part 601 and integral support portion 602 is real by revolving parts 8 to be processed by the collective effect of inside and outside
It now clamps and bearing, passes through bolt realization being fixedly connected between the two between outer retaining part 601 and integral support portion 602.
As shown in Figure 4 and Figure 5, the special grinding apparatus 5 includes matrix 501 and sand burning face 502, and described matrix 501 is rigid
Property material is made, and offers location hole 503 at the center of matrix 501, is uniformly provided with four losss of weight in the surrounding of location hole 503
Hole 504.The sand burning face 502 is welded at the outer rim of matrix 501, and the end face in sand burning face 502 is arc structure, described
The radian of circular arc is 120 °, and radian is that 120 ° of sand burning faces 502 that can make special grinding apparatus 5 and revolving parts 8 to be processed begin
Point contact is kept eventually, reduces the contact width of special grinding apparatus 5 and revolving parts 8 to be processed, revolving body to be processed is effectively reduced
8 finished surface scallop-height of part.The 502 end arc diameter of sand burning face should be according to 8 surface of revolving parts to be processed
Curvature determines that making arc diameter, there is no any influence to the precision of size in process.If revolving parts to be processed
Revolution curvilinear equation is y (x), and wherein y is that revolving parts to be processed turn round curve, and x is abscissa value, and special grinding apparatus circular arc is straight
Diameter specific formula for calculation is as follows:
Wherein: R is the arc diameter in sand burning face 502, and y ' is the first derivative that revolving parts to be processed turn round curve,
Y " is the second dervative that revolving parts to be processed turn round curve.
Ceramic material revolving parts abrasive machining device design is simple, easy for installation, guarantees high-speed motor 4 in assembly
Axis is consistent with 1 axis height of lathe chuck, drives special grinding apparatus 5 to rotate using high-speed motor 4, in combination with lathe chuck 1
Revolving parts 8 to be processed are driven to rotate, grinding speed and material removing rate improve, and are highly suitable for adding in ceramic material grinding
Work, while numerically controlled lathe programming can be used, it is ensured that machining accuracy is also reduced to operator's technical requirements.
As shown in Figure 1, the present embodiment revolving parts 8 to be processed select SiO2Ceramic material, inside and outside turning spur are
Complex curve, length 600mm, maximum gauge 280mm are 10mm at wall thickness minimum, and revolution bus requires stringent, error
Less than being introduced for ± 0.1mm, specific processing technology step are as follows:
Step 1: revolving parts 8 to be processed are cooperated with 6 clamping of special tooling, by the integral support portion in special tooling 6
602 cooperate with the inner cavities of revolving parts 8 to be processed, outer retaining part 601 and revolving parts 8 to be processed in special tooling 6
Form fit, and outer retaining part 601 and integral support portion 602 are connected and fixed using bolt, are then clamped on special tooling 6
On lathe chuck 1, since special tooling 6 selects nylon material, which can realize that clamping position is corresponding with bearing, outside
Clamping part 601 and integral support portion 602 mutually buffering 1 clamping force of lathe chuck effectively avoid revolving parts to be processed 8 by larger
Clamping force fracture, and positioning accuracy is high, it is ensured that and high-precision is processed.
Step 2: special grinding apparatus 5 is fixed on high-speed motor 4, in process, to improve grinding accuracy, should be subtracted
The contact width of few special grinding apparatus 5 and revolving parts 8 to be processed, by the arc structure that is designed to of special grinding apparatus 5, the circular arc
It is 120 °, 120 ° of circular arc makes the sand burning face 502 of special grinding apparatus 5 and revolving parts 8 to be processed remain point contact, together
When 502 end arc diameter of sand burning face match with 8 surface curvature of revolving parts to be processed, to realize special grinding apparatus 5
Point contact is remained between revolving parts 8 to be processed, and it is remaining high to can effectively reduce 8 finished surface of revolving parts to be processed
Degree.
Step 3: according to the curvilinear structures of revolving parts 8 to be processed, numerical control workshop program is generated, then logarithm
Control turning operation is coordinately transformed, so that it is determined that grinding controls program.
Step 4: determining single layer abrasive depth, under 1 rotary action of high-speed motor 4 and lathe chuck, runs grinding
Control program.
Step 5: after processing single layer 8 shape of revolving parts to be processed, step 4 is repeated, until revolving body zero to be processed
8 thickness of part meets design size.
The foregoing is only a preferred embodiment of the present invention, these specific embodiments are all based on the present invention
Different implementations under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover of the invention
Within protection scope.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (4)
1. a kind of ceramic material revolving parts grinding technique of complex curve fitting, which is characterized in that processing technology institute
The ceramic material revolving parts abrasive machining device used include: lathe chuck (1), lathe guide rail (2), knife rest pedestal (3),
High-speed motor (4), special grinding apparatus (5) and special tooling (6), lathe chuck (1) axis is parallel with lathe guide rail (2), knife
Frame pedestal (3) is slidably arranged on lathe guide rail (2), and the high-speed motor (4) is fixed on knife rest pedestal by support frame (7)
(3) on, and the axis of the output axis of high-speed motor (4) and lathe chuck (1) is in sustained height, the special grinding apparatus (5) with
The output shaft of high-speed motor (4) is fixedly connected, and the special tooling (6) is clamped on lathe chuck (1), revolving body to be processed
Part (8) is fixed on lathe chuck (1) by special tooling (6)；
Steps are as follows for specific processing technology:
Step 1: revolving parts to be processed (8) and special tooling (6) clamping are cooperated, are then clamped on special tooling (6)
On lathe chuck (1)；
Step 2: special grinding apparatus (5) is fixed on high-speed motor (4), in process, the sand burning of special grinding apparatus (5)
Face (502) and revolving parts to be processed (8) remain point contact；
Step 3: according to the curvilinear structures of revolving parts to be processed (8), numerical control workshop program is generated, then to numerical control
Turning operation is coordinately transformed, so that it is determined that grinding controls program；
Step 4: determining single layer abrasive depth, under high-speed motor (4) and lathe chuck (1) rotary action, runs grinding
Control program；
Step 5: after processing single layer revolving parts to be processed (8) shape, step 4 is repeated, until revolving parts to be processed
(8) thickness meets design size.
2. a kind of ceramic material revolving parts grinding technique of complex curve fitting as described in claim 1, feature
Be: the special tooling (6) includes outer retaining part (601) and integral support portion (602), and the integral support portion (602) is boss
Shape, and the lug boss outer wall line style of boss shape and the inner cavity line style of revolving parts to be processed (8) match, the outer retaining part
It (601) is annular, and the inner wall line style of annular and the outer wall line style of revolving parts to be processed (8) match, the outer clamping
Revolving parts to be processed (8) are realized by inside and outside collective effect and are clamped by the lug boss of portion (601) and integral support portion (602)
With support.
3. a kind of ceramic material revolving parts grinding technique of complex curve fitting as described in claim 1, feature
Be: the special grinding apparatus (5) includes matrix (501) and sand burning face (502), and the sand burning face (502) is welded on matrix
(501) at outer rim, and the end face of sand burning face (502) is arc structure, and the diameter of circular arc is according to revolving parts to be processed
(8) curvature on surface determines.
4. a kind of ceramic material revolving parts grinding technique of complex curve fitting as claimed in claim 3, feature
Be: the circular arc is 120 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910689562.4A CN110281086A (en) | 2019-07-29 | 2019-07-29 | A kind of ceramic material revolving parts grinding technique of complex curve fitting |
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| CN201910689562.4A CN110281086A (en) | 2019-07-29 | 2019-07-29 | A kind of ceramic material revolving parts grinding technique of complex curve fitting |
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| CN1480297A (en) * | 2003-07-18 | 2004-03-10 | 南京师范大学 | Grinding method for shaping up point of rear tool face of twist drill |
| CN1552551A (en) * | 2003-12-19 | 2004-12-08 | 广东工业大学 | Precision machining apparatus and method for axial symmetry rotary curve |
| CN201235502Y (en) * | 2008-08-05 | 2009-05-13 | 郑飞熊 | Interpolation type adamantine roll dresser structure of centreless grinder |
| CN104191251A (en) * | 2014-09-15 | 2014-12-10 | 北京理工大学 | Turning, grinding and compositing machine tool for missile heat-proof sleeves |
| CN104526503A (en) * | 2014-12-15 | 2015-04-22 | 中国燃气涡轮研究院 | Integrated blade disk and blade tip curved surface numerical control grinding device and method |
| CN207326419U (en) * | 2017-09-13 | 2018-05-08 | 上海天驷陶瓷科技有限公司 | A kind of multifunctional numerical control process equipment for integrating grinding, milling, turning |
| CN108057996A (en) * | 2017-12-14 | 2018-05-22 | 株洲联诚集团控股股份有限公司 | A kind of thin-walled cone work-piece processing technology and its grip device |
| CN208514341U (en) * | 2018-06-25 | 2019-02-19 | 广东工贸职业技术学院 | A kind of hard crisp Free Surface Grinding device |
-
2019
- 2019-07-29 CN CN201910689562.4A patent/CN110281086A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099323A (en) * | 1993-08-25 | 1995-03-01 | 宝钢集团常州冶金机械厂 | Method and apparatus of processing straightening rolls |
| CN1480297A (en) * | 2003-07-18 | 2004-03-10 | 南京师范大学 | Grinding method for shaping up point of rear tool face of twist drill |
| CN1552551A (en) * | 2003-12-19 | 2004-12-08 | 广东工业大学 | Precision machining apparatus and method for axial symmetry rotary curve |
| CN201235502Y (en) * | 2008-08-05 | 2009-05-13 | 郑飞熊 | Interpolation type adamantine roll dresser structure of centreless grinder |
| CN104191251A (en) * | 2014-09-15 | 2014-12-10 | 北京理工大学 | Turning, grinding and compositing machine tool for missile heat-proof sleeves |
| CN104526503A (en) * | 2014-12-15 | 2015-04-22 | 中国燃气涡轮研究院 | Integrated blade disk and blade tip curved surface numerical control grinding device and method |
| CN207326419U (en) * | 2017-09-13 | 2018-05-08 | 上海天驷陶瓷科技有限公司 | A kind of multifunctional numerical control process equipment for integrating grinding, milling, turning |
| CN108057996A (en) * | 2017-12-14 | 2018-05-22 | 株洲联诚集团控股股份有限公司 | A kind of thin-walled cone work-piece processing technology and its grip device |
| CN208514341U (en) * | 2018-06-25 | 2019-02-19 | 广东工贸职业技术学院 | A kind of hard crisp Free Surface Grinding device |
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