CN104029036A - Clamp for machining turbine piston ring - Google Patents
Clamp for machining turbine piston ring Download PDFInfo
- Publication number
- CN104029036A CN104029036A CN201410228221.4A CN201410228221A CN104029036A CN 104029036 A CN104029036 A CN 104029036A CN 201410228221 A CN201410228221 A CN 201410228221A CN 104029036 A CN104029036 A CN 104029036A
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- China
- Prior art keywords
- cylinder
- piston ring
- diameter
- cylindrical body
- torus
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a clamp for machining a turbine piston ring. The clamp for machining the turbine piston ring is used for solving the problems that according to an existing clamp for a turbine piston ring, the positioning and clamping errors are large, the machining precision of the piston ring is low, the maintaining and replacing efficiency of the existing clamp for the piston ring is low, much time and labor are cost in operation, and consequently the manufacturing cost of the piston ring is increased. A third cylinder is provided with a cavity, a pressing nut is a cylinder provided with a round through cavity, one end of the round through cavity is provided with an annular blocking edge, a fourth cylinder and a fifth cylinder are detachably arranged in the cavity, the end face of one side of the piston ring is attached to the outer end face of the third cylinder, the end face of the other side of the piston ring is attached to a sixth cylinder, a second cylinder, the third cylinder and the piston ring are detachably sleeved with the round through cavity of the pressing nut from the other end of the round through cavity, the sixth cylinder is in clearance fit with the annular blocking edge, and the inner end face of the annular blocking edge is attached to the end face of the other side of the piston ring. The clamp is used for clamping the turbine piston ring.
Description
Technical field
The present invention relates to a kind of fixture of processing vapor turbine piston ring.
Background technology
Piston ring is the conventional part on steam turbine product, sees Fig. 5 and Fig. 6, and blank is lathed to piston ring, and offers groove on piston ring sidewall, and groove width is B, then that piston cyclization is tight, and the groove width closing after tight is b, sees Fig. 7 and Fig. 8.Piston ring inside and outside wall surface difficulty after turning is closed is tightly large, is that the piston ring after closing tightly can not be processed by clamped one time on lathe on the one hand, and the piston ring clamping having increased after closing is tightly located number of times, thereby easily makes the secondary clamping error of piston ring increase; Existing piston ring clamp for machining complex structure, safeguards and changes inefficiency on the other hand, and operation is wasted time and energy.
So the fixture positioning and clamping errors of existing steam turbine piston ring is large, make the machining accuracy of piston ring low, and existing piston ring fixture maintenance replacing efficiency is low, and operation is wasted time and energy, thereby piston ring manufacturing cost is increased.
Summary of the invention
The fixture that the object of this invention is to provide a kind of processing vapor turbine piston ring, with solve the fixture positioning and clamping errors of existing steam turbine piston ring large, make the machining accuracy of piston ring low, and existing piston ring fixture safeguards that replacing efficiency is low, operation is wasted time and energy, thus the problem that piston ring manufacturing cost is increased.
The present invention addresses the above problem the technical scheme of taking to be: the fixture of described processing vapor turbine piston ring comprises clamp body, clamping nut and gland,
Clamp body comprises the first cylinder, the second cylinder, three cylindrical body, the first cylinder, the second cylinder and three cylindrical body are coaxially affixed successively, the first cylinder diameter is less than the second cylindrical diameter, three cylindrical body diameter is less than the second cylinder diameter and is greater than the first cylindrical diameter, the outer face of three cylindrical body offers die cavity
Gland comprises the 4th cylinder, the 5th cylinder and the 6th cylinder, and the 4th cylindrical diameter, the 5th cylindrical diameter and the 6th cylindrical diameter increase gradually successively and be coaxially affixed,
Clamping nut is the cylinder that offers circular cavity, and one end of circular cavity is provided with annular gear edge,
The 4th cylinder and the 5th cylindrical left side is detachable is placed in die cavity, cavity shape and the 4th cylinder and the 5th cylindrical shape and size match,
The madial wall of piston ring matches with the lateral wall of the 5th cylinder right-hand part, and a side end face of piston ring and the outer face of three cylindrical body fit, and the opposite side end face of piston ring and the 6th cylinder fit,
The second cylinder, three cylindrical body and piston ring are in the detachable circular cavity that is inserted in clamping nut of the other end of circular cavity, and the 6th cylinder is with annular gear along matched in clearance, and the annular gear inner face on edge and the described opposite side end face of piston ring fit.
The present invention compared with prior art has following beneficial effect:
1, fixture of the present invention has been realized one-time positioning, twice turning, better guaranteed the size of piston ring 7-0, precision, when machining piston ring 7-0 lateral wall, together with clamp body 1-0 is fixed on gland 3-0, piston ring 7-0 is clipped between clamp body 1-0 and gland 3-0, when machining piston ring 7-0 madial wall, together with first clamping nut 2-0 being fixed on clamp body 1-0, annular gear is clamped piston ring 7-0 along 2-2 and three cylindrical body 1-3, guarantee piston ring 7-0 positioning precision, then gland 3-0 is unloaded, by clamped one time, just can realize the interior lateral wall of piston ring 7-0 processes, prior art has reduced the clamping times of piston ring 7-0 relatively, thereby avoided the generation of secondary clamping error, guaranteed the location and installation precision of piston ring 7-0.
2, fixture highly versatile of the present invention, can be used as the general sectional fixture of the annular element of similar split ring.The cylindrical of first turning annular element, the endoporus of reface annular element, reaches a frock effect double-duty, guarantees accessory size, precision, and effect is extremely desirable.
3, clamp structure of the present invention is simple, be convenient to workman's operation, and clamp body 1-0 is used threaded connector to be connected with clamping nut 2-0, clamp body 1-0 is used threaded connector to be connected with gland 3-0, threaded connector has highly versatile, feature is fast changed in buying, the replacing of the fixture of relatively existing steam turbine piston ring is safeguarded more quick and convenient, thereby has reduced workman's labour intensity.
Use after fixture of the present invention, the relative prior art of the machining accuracy of piston ring 7-0 improves 30%, and piston ring 7-0 manufacturing cost reduces by 33% relatively.
Accompanying drawing explanation
Fig. 1 is sectional arrangement drawing of the present invention,
Fig. 2 is the sectional arrangement drawing of clamp body 1-0 and gland 3-0,
Fig. 3 is the sectional arrangement drawing of clamp body 1-0 and clamping nut 2-0,
Fig. 4 is the cutaway view of gland 3-0,
Fig. 5 is piston ring 7-0 relaxed state front view,
Fig. 6 is piston ring 7-0 relaxed state top view,
Fig. 7 is that piston ring 7-0 closes tight state front view,
Fig. 8 is that piston ring 7-0 closes tight state top view.
The specific embodiment
The specific embodiment one: illustrate in conjunction with Fig. 1 to Fig. 8, the fixture of the described processing vapor turbine piston ring of present embodiment comprises clamp body 1-0, clamping nut 2-0 and gland 3-0,
Clamp body 1-0 comprises the first cylinder 1-1, the second cylinder 1-2, three cylindrical body 1-3, the first cylinder 1-1, the second cylinder 1-2 and three cylindrical body 1-3 are coaxially affixed successively, the first cylinder 1-1 diameter is less than the diameter of the second cylinder 1-2, three cylindrical body 1-3 diameter is less than the second cylinder 1-2 diameter and is greater than the diameter of the first cylinder 1-1, the outer face of three cylindrical body 1-3 offers die cavity 1-4
Gland 3-0 comprises the 4th cylinder 3-1, the 5th cylinder 3-2 and the 6th cylinder 3-3, and the diameter of the diameter of the 4th cylinder 3-1, the 5th cylinder 3-2 and the diameter of the 6th cylinder 3-3 increase gradually successively and be coaxially affixed,
Clamping nut 2-0 is the cylinder that offers circular cavity 2-1, and one end of circular cavity 2-1 is provided with annular gear along 2-2,
Detachable being placed in die cavity 1-4 in left side of the 4th cylinder 3-1 and the 5th cylinder 3-2, the shape and size of die cavity 1-4 shape and the 4th cylinder 3-1 and the 5th cylinder 3-2 match,
The madial wall of piston ring 7-0 matches with the lateral wall of the 5th cylinder 3-2 right-hand part, and a side end face of piston ring 7-0 and the outer face of three cylindrical body 1-3 fit, and the opposite side end face of piston ring 7-0 and the 6th cylinder 3-3 fit,
The second cylinder 1-2, three cylindrical body 1-3 and piston ring 7-0 are in the detachable circular cavity 2-1 that is inserted in clamping nut 2-0 of the other end of circular cavity 2-1, the 6th cylinder 3-3 is with annular gear along 2-2 matched in clearance, and annular gear fits along the inner face of 2-2 and the described opposite side end face of piston ring 7-0.
The specific embodiment two: illustrate in conjunction with Fig. 1 to Fig. 8, present embodiment along gland 3-0, axially offer through hole 3-4, in die cavity 1-4, offer screwed hole 1-5, screwed hole 1-5 axially offers along the first cylinder 1-1's, and bolt 4-0 screws in screwed hole 1-5 through through hole 3-4.
Bolt 4-0 is hex bolts, between hex bolts and screwed hole 1-5, on hex bolts sidewall, is set with plain washer 4-1.
Adopting bolt 4-0 to match with screwed hole 1-5 removably connects gland 3-0 and clamp body 1-0, bolt 4-0, through hole 3-4 and screwed hole 1-5 have the feature of convenient processing and manufacture, and are the conventional part that removably connects, replacing, easy to maintenance, installing/dismounting is quick, connects accurately reliable.
In present embodiment, undocumented technical characterictic is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 to 8 explanation, the described other end sidewall of the circular cavity 2-1 of present embodiment is provided with internal thread, the second cylinder 1-2 lateral wall is provided with external screw thread, external screw thread matches with internal thread, the lateral wall of clamping nut 2-0 offers several blind holes 2-3, and blind hole 2-3 radially offers along clamping nut 2-0's.
Internal thread matches with external screw thread cavity 2-1 and the second cylinder 1-2 is removably connected, and external screw thread and internal thread have the feature of convenient processing and manufacture, and are the usual way that removably connects, and easy to maintenance, installing/dismounting is quick, connects accurately reliable.
Blind hole 2-3 is used while being used for installing/dismounting clamping nut 2-0.
In present embodiment, undocumented technical characterictic is identical with the specific embodiment one or two.
The specific embodiment four: in conjunction with Fig. 1 to 8 explanation, the clamp body 1-0 of present embodiment also comprises the 7th cylinder 6-1, between the second cylinder 1-2 and three cylindrical body 1-3, be provided with the 7th cylinder 6-1, the 7th cylinder 6-1 diameter is less than the second cylinder 1-2 diameter and is greater than the diameter of three cylindrical body 1-3.
Because the 7th cylinder 6-1 diameter is less than the second cylinder 1-2 diameter and is greater than the diameter of three cylindrical body 1-3, strengthened three cylindrical body 1-3 and the second cylindrical rigidity that is connected, thereby while guaranteeing machining piston ring 7-0 lateral wall, fixture clamping of the present invention is reliable and stable.
In present embodiment, undocumented technical characterictic is identical with the specific embodiment three.
The specific embodiment five: in conjunction with Fig. 1 to 8 explanation, the clamping nut 2-0 of present embodiment also comprises the first torus 6-2 and the second torus 6-3, the first torus 6-2 and the second torus 6-3 are coaxially fixed in cavity 2-1, the first torus 6-2, the second torus 6-3 and annulus gear successively decrease and adjacent setting successively along the internal diameter of 2-2, the first torus 6-2 and the 7th cylinder 6-1 match, and the second torus 6-3 matches with piston ring 7-0.
The madial wall of the lateral wall of piston ring 7-0 and the second torus 6-3 fits, and guarantees that piston ring 7-0 is in closing tight state.
In present embodiment, undocumented technical characterictic is identical with the specific embodiment four.
Operation principle
Machining piston ring outer round surface:
After clamp body 1-0 and gland 3-0 are affixed, the first cylinder 1-1 is installed on the chuck of horizontal lathe, by fluting after one or two piston ring 7-0 successively ring set on the 5th cylinder 3-2 lateral wall between three cylindrical body 1-3 and six cylinder 3-3, then use the outer wall of clamp clamping piston ring 7-0, piston ring 7-0 is closed to tight one-tenth processing request state, 4-0 tights a bolt, plain washer 4-1, rely on gland 3-0 to clamp described piston ring 7-0, location, the accurate excircle dimension of described piston ring is processed in turning, make the cylindrical of described piston ring 7-0 reach processing request size and precision.
Machining piston ring interior side-wall surface:
Clamping nut 2-0 is coordinated and screwed with external screw thread by internal thread, after fastening described piston ring 7-0, remove again bolt 4-0, plain washer 4-1, gland 3-0, then the madial wall of piston ring 7-0 described in car, makes the madial wall of described piston ring 7-0 reach processing request size and precision.
Claims (5)
1. a fixture for processing vapor turbine piston ring, is characterized in that: the fixture of described processing vapor turbine piston ring comprises clamp body (1-0), clamping nut (2-0) and gland (3-0),
Clamp body (1-0) comprises the first cylinder (1-1), the second cylinder (1-2), three cylindrical body (1-3), the first cylinder (1-1), the second cylinder (1-2) and three cylindrical body (1-3) are coaxially affixed successively, the first cylinder (1-1) diameter is less than the diameter of the second cylinder (1-2), three cylindrical body (1-3) diameter is less than the second cylinder (1-2) diameter and is greater than the diameter of the first cylinder (1-1), the outer face of three cylindrical body (1-3) offers die cavity (1-4)
Gland (3-0) comprises the 4th cylinder (3-1), the 5th cylinder (3-2) and the 6th cylinder (3-3), the diameter of the diameter of the diameter of the 4th cylinder (3-1), the 5th cylinder (3-2) and the 6th cylinder (3-3) increases gradually successively and is coaxially affixed
Clamping nut (2-0) is for offering the cylinder of circular cavity (2-1), and one end of circular cavity (2-1) is provided with annular gear along (2-2),
Detachable being placed in die cavity (1-4) in left side of the 4th cylinder (3-1) and the 5th cylinder (3-2), the shape and size of die cavity (1-4) shape and the 4th cylinder (3-1) and the 5th cylinder (3-2) match
The madial wall of piston ring (7-0) matches with the lateral wall of the 5th cylinder (3-2) right-hand part, one side end face of piston ring (7-0) and the outer face of three cylindrical body (1-3) fit, the opposite side end face of piston ring (7-0) and the 6th cylinder (3-3) fit
The second cylinder (1-2), three cylindrical body (1-3) and piston ring (7-0) are in the detachable circular cavity (2-1) that is inserted in clamping nut (2-0) of the other end of circular cavity (2-1), the 6th cylinder (3-3) is with annular gear along (2-2) matched in clearance, and annular gear fits along the inner face of (2-2) and the described opposite side end face of piston ring (7-0).
2. the fixture of processing vapor turbine piston ring according to claim 1, it is characterized in that: along gland (3-0), axially offer through hole (3-4), in die cavity (1-4), offer screwed hole (1-5), screwed hole (1-5) is axially offered along the first cylinder (1-1), and bolt (4-0) screws in screwed hole (1-5) through through hole (3-4).
3. the fixture of processing vapor turbine piston ring according to claim 1 and 2, it is characterized in that: the described other end sidewall of circular cavity (2-1) is provided with internal thread, the second cylinder (1-2) lateral wall is provided with external screw thread, external screw thread matches with internal thread, the lateral wall of clamping nut (2-0) offers several blind holes (2-3), blind hole (2-3) radially offering along clamping nut (2-0).
4. the fixture of processing vapor turbine piston ring according to claim 3, it is characterized in that: clamp body (1-0) also comprises the 7th cylinder (6-1), between the second cylinder (1-2) and three cylindrical body (1-3), be provided with the 7th cylinder (6-1), the 7th cylinder (6-1) diameter is less than the second cylinder (1-2) diameter and is greater than the diameter of three cylindrical body (1-3).
5. the fixture of processing vapor turbine piston ring according to claim 4, it is characterized in that: clamping nut (2-0) also comprises the first torus (6-2) and the second torus (6-3), the first torus (6-2) is coaxially fixed in cavity (2-1) with the second torus (6-3), the first torus (6-2), the second torus (6-3) and annulus gear successively decrease and adjacent setting successively along the internal diameter of (2-2), the first torus (6-2) matches with the 7th cylinder (6-1), and the second torus (6-3) matches with piston ring (7-0).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228221.4A CN104029036A (en) | 2014-05-27 | 2014-05-27 | Clamp for machining turbine piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228221.4A CN104029036A (en) | 2014-05-27 | 2014-05-27 | Clamp for machining turbine piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104029036A true CN104029036A (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410228221.4A Pending CN104029036A (en) | 2014-05-27 | 2014-05-27 | Clamp for machining turbine piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104029036A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385019A (en) * | 2014-09-28 | 2015-03-04 | 杭州汽轮机股份有限公司 | Method and turning clamp for oil cylinder piston sealing ring machining |
| CN104924135A (en) * | 2015-06-26 | 2015-09-23 | 东方电气集团东方汽轮机有限公司 | Clamp for finish-turning inner and outer circles of open circular ring work piece and finish-turning method by the use of clamp |
| CN105058133A (en) * | 2015-09-14 | 2015-11-18 | 江西洪都航空工业集团有限责任公司 | Lathe device and method for machining piston ring |
| CN106271786A (en) * | 2016-08-30 | 2017-01-04 | 中航动力股份有限公司 | A kind of thin cut ring spacing state turning positioning fixture and using method thereof |
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| US3848882A (en) * | 1972-11-20 | 1974-11-19 | E Sullivan | Ring chucking apparatus |
| CN201244687Y (en) * | 2008-04-16 | 2009-05-27 | 上海海事大学 | Special tooling for processing ring shaped thin wall member |
| CN202655942U (en) * | 2012-07-06 | 2013-01-09 | 宜昌江峡船用机械有限责任公司 | Machining tool of thin-wall thread bushing |
| CN203003669U (en) * | 2012-11-14 | 2013-06-19 | 广西容县金丰活塞环有限公司 | Quick installing clamp for piston ring trapezoid surface grinding machine work piece |
| CN203045377U (en) * | 2013-02-25 | 2013-07-10 | 长沙正盛动力配件有限公司 | Tool clamp for turning inner circle and outer circle of large-bore piston ring |
| CN103231074A (en) * | 2013-04-18 | 2013-08-07 | 哈尔滨汽轮机厂有限责任公司 | Machining method of inner circle and outer circle of elastic ring provided with opening and made of high temperature alloy |
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2014
- 2014-05-27 CN CN201410228221.4A patent/CN104029036A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848882A (en) * | 1972-11-20 | 1974-11-19 | E Sullivan | Ring chucking apparatus |
| CN201244687Y (en) * | 2008-04-16 | 2009-05-27 | 上海海事大学 | Special tooling for processing ring shaped thin wall member |
| CN202655942U (en) * | 2012-07-06 | 2013-01-09 | 宜昌江峡船用机械有限责任公司 | Machining tool of thin-wall thread bushing |
| CN203003669U (en) * | 2012-11-14 | 2013-06-19 | 广西容县金丰活塞环有限公司 | Quick installing clamp for piston ring trapezoid surface grinding machine work piece |
| CN203045377U (en) * | 2013-02-25 | 2013-07-10 | 长沙正盛动力配件有限公司 | Tool clamp for turning inner circle and outer circle of large-bore piston ring |
| CN103231074A (en) * | 2013-04-18 | 2013-08-07 | 哈尔滨汽轮机厂有限责任公司 | Machining method of inner circle and outer circle of elastic ring provided with opening and made of high temperature alloy |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385019A (en) * | 2014-09-28 | 2015-03-04 | 杭州汽轮机股份有限公司 | Method and turning clamp for oil cylinder piston sealing ring machining |
| CN104924135A (en) * | 2015-06-26 | 2015-09-23 | 东方电气集团东方汽轮机有限公司 | Clamp for finish-turning inner and outer circles of open circular ring work piece and finish-turning method by the use of clamp |
| CN105058133A (en) * | 2015-09-14 | 2015-11-18 | 江西洪都航空工业集团有限责任公司 | Lathe device and method for machining piston ring |
| CN105058133B (en) * | 2015-09-14 | 2017-06-30 | 江西洪都航空工业集团有限责任公司 | Process the lathe equipments and method of piston ring |
| CN106271786A (en) * | 2016-08-30 | 2017-01-04 | 中航动力股份有限公司 | A kind of thin cut ring spacing state turning positioning fixture and using method thereof |
| CN106271786B (en) * | 2016-08-30 | 2018-08-03 | 中航动力股份有限公司 | A kind of thin cut ring limit state turning positioning fixture and its application method |
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Application publication date: 20140910 |