CN105312856A - Machining method for rotating-shuttle shuttle race - Google Patents
Machining method for rotating-shuttle shuttle race Download PDFInfo
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- CN105312856A CN105312856A CN201510804975.4A CN201510804975A CN105312856A CN 105312856 A CN105312856 A CN 105312856A CN 201510804975 A CN201510804975 A CN 201510804975A CN 105312856 A CN105312856 A CN 105312856A
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- connection block
- shuttle race
- rotary shuttle
- building ring
- processing method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a machining method for a rotating-shuttle shuttle race. The machining method includes a blank fabrication process, a machining process, a surface treatment process and a heat treatment process and includes the following steps of blank fabrication, preparation of a clamp device, rough machining, deburring, rough machining check, heat treatment, finish machining, finish machining check, surface treatment, polishing, cleaning, finished product final check and assembling. Technical problems generated during actual machining are solved; the machining steps are simpler and more reasonable and convenient; quick clamping is achieved and machining accuracy is guaranteed by means of tool clamps; therefore, the production efficiency is improved, and resource consumption is reduced.
Description
Technical field
The present invention relates to the processing method of machine components, particularly relate to a kind of processing method of rotary shuttle race.
Background technology
Shuttle race is an important component part of sewing-machine rotating shuttle, the structure of shuttle race and machining accuracy, and will determine the using state of whole rotating shuttle, the volume of shuttle race is little, complex structure, and manufacturing procedure is many, and therefore machining accuracy is difficult to control.
The prior art of China Patent No. 201410173981.X, false boss is increased during casting for rotary shuttle race, what mainly want to solve is the problem of clamping in process, but only need use hydraulic pressure chuck in actual process, just can overcome the above problems, increase false boss, also easily damage cutter man-hour adding.
Summary of the invention
The processing method of a kind of rotary shuttle race of the present invention, exactly in order to solve above technical problem, making manufacturing procedure reasonable simplicity more, by frock clamp, not only achieving quick-clamping, and ensure that machining accuracy.
In order to realize above-mentioned technical purpose, reach above-mentioned technical requirement, the technical solution adopted in the present invention is:
A processing method for rotary shuttle race, is characterized in that, comprises the following steps:
1), base:
2), the preparation of grip device:
Rotary shuttle race comprises building ring and Connection Block, described building ring, for circumference thin-wall construction, adding man-hour, circumference thin-walled is stressed yielding, so must increase auxiliary clamp, circumference thin-walled is provided with screwed hole A, in order to the position of determining hole quickly and accurately, need to increase auxiliary drill jig, prepare milling cutter, groove cutter, drill bit and screw tap that machining needs;
3), mechanical roughing:
Described machining, for roughing, surplus need be left in each position, except screwed hole, comprise: there is building ring outer wall side, outer wall holddown groove, oblique angle, building ring inwall separated time boss, chamfering, shuttle pin, Connection Block upper surface, the upper surface a of building ring and the upper surface b of building ring adopts milling cutter to process on numerical control machining center, building ring inboard wall groove adopts groove cutter to process on numerical control machining center, through hole adopts drill bit to process on numerical control machining center, opposite side has Connection Block midplane, the large cylindrical of Connection Block, the little cylindrical of Connection Block, Connection Block lower surface, skew back face B and skew back face C, being positioned on numerical control machining center by auxiliary clamp adopts milling cutter to process, Connection Block retaining thread hole adopts drill bit to process on drilling machine, tap tapping, screwed hole A adopts drill bit to process on boring machine, by the position of auxiliary drill jig determination screwed hole A,
4), deburring:
5), rough turn inspection:
6), heat treatment:
7), machine finishing:
Comprise: there is building ring outer wall side, outer wall holddown groove, oblique angle, building ring inwall separated time boss, chamfering, shuttle pin, Connection Block upper surface, the upper surface a of building ring, the upper surface b of building ring and building ring inboard wall groove adopt wool bob mucosin steel sand to process on grinding machine, through hole adopts reamer to process on numerical control machining center, shuttle pin chamfering adopts abrasive band manual grinding, opposite side has Connection Block midplane, the large cylindrical of Connection Block, the little cylindrical of Connection Block, Connection Block lower surface, skew back face B and skew back face C, being positioned on numerical control machining center by auxiliary clamp adopts milling cutter to process, trapezoidal angle processes with milling cutter on production miller,
8), fine finishining inspection:
9), surface treatment:
10), polishing:
11), clean:
12), finished product inspection eventually:
13), assemble:
By the moon shape circle and shuttle skin be connected on rotary shuttle race by screwed hole A.
As optimal technical scheme: described base, rotary shuttle race adopts the casting of steel die essence, one-body molded.
As optimal technical scheme: described auxiliary clamp, comprise pressing plate combination, bolt combination, base plate, cylinder and side boss, described cylinder is stepped cylindrical structure, comprise small end cylinder, described small end cylinder is provided with screwed hole D, described base plate is provided with 3 uniform screwed hole E.
As optimal technical scheme: described cylinder and Connection Block upper surface are fitted, described small end cylinder coordinates with through hole.
As optimal technical scheme: described auxiliary drill jig, be circular arc type structure, comprise positioning boss F, bolt hole, drill bushing and positioning boss G.
As optimal technical scheme: described screwed hole A, quantity is 7.
As optimal technical scheme: described heat treatment method, rotary shuttle race is bulk heat treatmet, hardening heat 830 DEG C, temperature 200 DEG C, and the hardness after heat treatment is HV650-750.
As optimal technical scheme: described surface treatment method, comprise the plating nickel on surface of sandblasting and shuttle pin, first adopt sand-blasting machine to carry out surface treatment to rotary shuttle race, remove surface spikes, dirt, and then the plating nickel on surface carrying out shuttle pin.
As optimal technical scheme: described deburring, to all positions processed, remove burr, described inspection, tests to the position processed, prevent underproof product from flowing into next procedure, described polishing, adopts polishing machine, uses wool bob mucosin steel sand and green oil, overall polishing is carried out to rotary shuttle race, makes surface become light smoothly.
As optimal technical scheme: described cleaning, first, add 5% brightener with water and clean 1 minute, then, dry up moisture content with air compressor machine tracheae.
The invention has the beneficial effects as follows: described building ring 2, for circumference thin-wall construction, adding man-hour, circumference thin-walled is stressed yielding, circumference thin-walled is provided with screwed hole A202, described screwed hole A202 quantity is 7, position difficulty is determined, therefore the processing method of a kind of rotary shuttle race of the present invention, be provided with auxiliary clamp 201 and auxiliary drill jig 203, described auxiliary clamp 201, to realize being fixed rotary shuttle race, circumference thin-walled does not stress, so can not deform, and can quick position, described auxiliary drill jig 203, it is the position in order to determine screwed hole A202 fast, the guide effect of drill bushing 26, ensure that the precision of boring, be different from prior art, scroll chuck is used to fix and rule locating hole, efficiency is increased substantially, and machining accuracy is more guaranteed.
Accompanying drawing explanation
Fig. 1 is rotary shuttle race front view of the present invention.
Fig. 2 is rotary shuttle race front view of the present invention.
Fig. 3 is the A-A sectional view of Fig. 1 of the present invention.
Fig. 4 is general assembly drawing of the present invention.
Fig. 5 is auxiliary clamp installation diagram of the present invention.
Fig. 6 is auxiliary drill jig assembling schematic diagram of the present invention.
Fig. 7 is auxiliary drill jig front view of the present invention.
Fig. 8 is the B-B sectional view of Fig. 7 of the present invention.
In the drawings, 1. Connection Block, 2. building ring, 201. auxiliary clamp, 201-0. pressing plate combines, 201-01. bolt combination, 201-1. base plate, 201-2. cylinder, 201-3. small end cylinder, 201-4. screwed hole D, 201-5. screwed hole E, 202. screwed hole A, 203. auxiliary drill jigs, 3. building ring outer wall, 4. outer wall holddown groove, 5. oblique angle, 6. building ring inwall separated time boss, 7. shuttle pin, 8. chamfering, 9. Connection Block upper surface, 10. the upper surface a of building ring, the upper surface b of 11. building rings, 12. building ring inboard wall grooves, 13. through holes, the large cylindrical of 14. Connection Block, 15. Connection Block midplanes, the little cylindrical of 16. Connection Block, 17. Connection Block lower surfaces, 18. skew back face B, 19. skew back face C, 20. Connection Block retaining thread holes, 21. trapezoidal angles, 22. months shape circles, 23. shuttle skins, 24. positioning boss F, 25. bolts hole, 26. drill bushings, 27. positioning boss G.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described;
A processing method for rotary shuttle race, comprises the following steps:
1), base:
2), the preparation of grip device:
Rotary shuttle race comprises Connection Block 1 and building ring 2, described building ring 2, is circumference thin-wall construction, adding man-hour, circumference thin-walled is stressed yielding, so must increase auxiliary clamp 201, circumference thin-walled is provided with screwed hole A202, in order to the position of determining hole quickly and accurately, need to increase auxiliary drill jig 203, prepare milling cutter, groove cutter, drill bit and screw tap that machining needs, add auxiliary mould, make processing easier, precision is more accurate;
3), mechanical roughing:
Described machining, be roughing, surplus need be left in each position, except screwed hole, comprising: there is building ring outer wall 3 side, outer wall holddown groove 4, oblique angle 5, building ring inwall separated time boss 6, shuttle pin 7, chamfering 8, Connection Block upper surface 9, the upper surface a10 of building ring and the upper surface b11 of building ring adopts milling cutter to process on numerical control machining center, building ring inboard wall groove 12 adopts groove cutter to process on numerical control machining center, through hole 13 adopts drill bit to process on numerical control machining center, and opposite side has the large cylindrical 14 of Connection Block, Connection Block midplane 15, the little cylindrical 16 of Connection Block, Connection Block lower surface 17, skew back face B18 and skew back face C19, be positioned on numerical control machining center by auxiliary clamp 201 and adopt milling cutter to process, Connection Block retaining thread hole 20 adopts drill bit to process on drilling machine, tap tapping, screwed hole A202 adopts drill bit to process on boring machine, is determined the position of screwed hole A202 by auxiliary drill jig 203, and mechanical rough machined object leaves rational allowance, is convenient to processing after heat treatment,
4), deburring: surface cleaning, avoid scratch human body;
5), rough turn inspection: avoid underproof product to flow into next procedure;
6), heat treatment: make the interior tissue of rotary shuttle race finer and close;
7), machine finishing:
Comprise: there is building ring outer wall 3 side, outer wall holddown groove 4, oblique angle 5, building ring inwall separated time boss 6, shuttle pin 7, chamfering 8, Connection Block upper surface 9, the upper surface a10 of building ring, the upper surface b11 of building ring and building ring inboard wall groove 12 adopt wool bob mucosin steel sand to process on grinding machine, through hole 13 adopts reamer to process on numerical control machining center, shuttle pin chamfering 7-1 adopts abrasive band manual grinding, opposite side has the large cylindrical 14 of Connection Block, Connection Block midplane 15, the little cylindrical 16 of Connection Block, Connection Block lower surface 17, skew back face B18 and skew back face C19, being positioned on numerical control machining center by auxiliary clamp 201 adopts milling cutter to process, trapezoidal angle 21 processes with milling cutter on production miller, ensure that crudy,
8), fine finishining inspection:
9), surface treatment:
10), polishing:
11), clean:
12), finished product inspection eventually:
13), assemble:
By the moon shape circle 22 and Suo Pi 23 be connected on rotary shuttle race by screwed hole A202.
As optimal technical scheme: described base, rotary shuttle race adopts the casting of steel die essence, one-body molded.
As optimal technical scheme: described auxiliary clamp 201, comprise pressing plate combination 201-0, bolt combination 201-01, base plate 201-1 and cylinder 201-2, described cylinder 201-2 is stepped cylindrical structure, comprise small end cylinder 201-3, described small end cylinder 201-3 is provided with screwed hole D201-4, described base plate 201-1 is provided with 3 uniform screwed hole E201-5.
As optimal technical scheme: described cylinder 201-2 and Connection Block upper surface 9 are fitted, described small end cylinder 201-3 coordinates with through hole 13, ensure that the concentricity of rotary shuttle race.
As optimal technical scheme: described auxiliary drill jig 203, be circular arc type structure, comprise positioning boss F24, bolt hole 25, drill bushing 26 and positioning boss G27.
As optimal technical scheme: described screwed hole A202, quantity is 7.
As optimal technical scheme: described heat treatment method, rotary shuttle race is bulk heat treatmet, hardening heat 830 DEG C, temperature 200 DEG C, and the hardness after heat treatment is HV650-750, makes the interior tissue of rotary shuttle race finer and close.
As optimal technical scheme: described surface treatment method, comprise the plating nickel on surface of sandblasting and shuttle pin 7, first sand-blasting machine is adopted to carry out surface treatment to shuttle race, remove surface spikes, dirt, and then the plating nickel on surface carrying out shuttle pin 7, form passivating film on surface, strengthen corrosion-resistant and wearability, improve the fineness on surface.
As optimal technical scheme: described deburring, to all positions processed, remove burr, described inspection, tests to the position processed, prevent underproof product from flowing into next procedure, described polishing, adopts polishing machine, uses wool bob mucosin steel sand and green oil, overall polishing is carried out to rotary shuttle race, makes surface become light smoothly.
As optimal technical scheme: described cleaning, first, add 5% brightener with water and clean 1 minute, then, dry up moisture content with air compressor machine tracheae, ensure that clean no-sundries.
The processing method of a kind of rotary shuttle race of the present invention, innovation point is:
1. in FIG, described building ring 2, for circumference thin-wall construction, adding man-hour, circumference thin-walled is stressed yielding, so be provided with auxiliary clamp 201, be to realize being fixed rotary shuttle race, circumference thin-walled does not stress, so can not deform, not only locating speed is fast, and can ensure precision.
2. in FIG, described circumference thin-walled is provided with screwed hole A202, described screwed hole A202 quantity is 7, and position difficulty is determined, prior art is all adopt manual line, not only efficiency is low, and precision cannot ensure, so be provided with auxiliary drill jig 203, it is the position in order to determine screwed hole A202 fast, the guide effect of drill bushing 26, ensure that the precision of boring.
Specific embodiment of the invention:
Embodiment 1
Described step 1) is a rough machined process to step 5), object is for equipment is carried out in the fine finishining of after-stage, in Figure 5, by described auxiliary clamp 201, rotary shuttle race is positioned, first, auxiliary clamp 201 pressing plate is fixed on the workbench of equipment, rotary shuttle race is enclosed within auxiliary clamp 201, then, be fixed with pressing plate combination 201-0, processing Connection Block lower surface 17, have again, bolt combination 201-01 is used to be fixed, remove pressing plate combination 201-0, finally, the large cylindrical 14 of processing Connection Block, Connection Block midplane 15, the little cylindrical 16 of Connection Block, skew back face B18 and skew back face C19.
Above-described embodiment is only for the description that the present invention does clearly is described; and the restriction not to embodiment; to those of ordinary skill in the art; can also make other changes in different forms on the basis of the above description; here exhaustive without the need to also giving all embodiments, and thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (10)
1. a processing method for rotary shuttle race, comprises blank-making method, machining process, surface treatment method and heat treatment method, it is characterized in that, comprises following procedure of processing:
1), base:
2), the preparation of grip device:
Rotary shuttle race comprises Connection Block (1) and building ring (2), described building ring (2), for circumference thin-wall construction, adding man-hour, circumference thin-walled is stressed yielding, so must increase auxiliary clamp (201), circumference thin-walled is provided with screwed hole A(202), in order to the position of determining hole quickly and accurately, need to increase auxiliary drill jig (203), prepare milling cutter, groove cutter, drill bit and screw tap that machining needs;
3), mechanical roughing:
Described machining, be roughing, surplus need be left in each position, except screwed hole, comprising: there is building ring outer wall (3) side, outer wall holddown groove (4), oblique angle (5), building ring inwall separated time boss (6), shuttle pin (7), chamfering (8), Connection Block upper surface (9), the upper surface a (10) of building ring and the upper surface b (11) of building ring adopts milling cutter to process on numerical control machining center, building ring inboard wall groove (12) adopts groove cutter to process on numerical control machining center, through hole (13) adopts drill bit to process on numerical control machining center, and opposite side has the large cylindrical of Connection Block (14), Connection Block midplane (15), the little cylindrical of Connection Block (16), Connection Block lower surface (17), skew back face B(18) and skew back face C(19), be positioned on numerical control machining center by auxiliary clamp (201) and adopt milling cutter to process, Connection Block retaining thread hole (20) adopts drill bit to process on drilling machine, tap tapping, screwed hole A(202) on boring machine, adopt drill bit to process, determine screwed hole A(202 by auxiliary drill jig (203)) position,
4), deburring:
5), rough turn inspection:
6), heat treatment:
7), machine finishing:
Comprise: there is building ring outer wall (3) side, outer wall holddown groove (4), oblique angle (5), building ring inwall separated time boss (6), shuttle pin (7), chamfering (8), Connection Block upper surface (9), the upper surface a (10) of building ring, the upper surface b (11) of building ring and building ring inboard wall groove (12) adopt wool bob mucosin steel sand to process on grinding machine, through hole (13) adopts reamer to process on numerical control machining center, shuttle pin chamfering (7-1) adopts abrasive band manual grinding, opposite side has the large cylindrical of Connection Block (14), Connection Block midplane (15), the little cylindrical of Connection Block (16), Connection Block lower surface (17), skew back face B(18) and skew back face C(19), being positioned on numerical control machining center by auxiliary clamp (201) adopts milling cutter to process, trapezoidal angle (21) processes with milling cutter on production miller,
8), fine finishining inspection:
9), surface treatment:
10), polishing:
11), clean:
12), finished product inspection eventually:
13), assemble:
By the moon shape circle (22) and shuttle skin (23) by screwed hole A(202) be connected on rotary shuttle race.
2. the processing method of a kind of rotary shuttle race according to claim 1, is characterized in that: described base, and rotary shuttle race adopts the casting of steel die essence, one-body molded.
3. the rotary shuttle race made of the processing method of a kind of rotary shuttle race according to claim 1, it is characterized in that: described auxiliary clamp (201) comprises pressing plate combination (201-0), bolt combination (201-01), base plate (201-1) and cylinder (201-2), described cylinder (201-2) is stepped cylindrical structure, comprise small end cylinder (201-3), described small end cylinder (201-3) is provided with screwed hole D (201-4), described base plate (201-1) is provided with 3 uniform screwed hole E(201-5).
4. the processing method of a kind of rotary shuttle race according to claim 3, is characterized in that: described cylinder (201-2) and Connection Block upper surface (9) are fitted, and described small end cylinder (201-3) coordinates with through hole (13).
5. the rotary shuttle race made of the processing method of a kind of rotary shuttle race according to claim 1, it is characterized in that: described auxiliary drill jig (203) is circular arc type structure, comprises positioning boss F(24), bolt hole (25), drill bushing (26) and positioning boss G(27).
6. the rotary shuttle race made of the processing method of a kind of rotary shuttle race according to claim 1, is characterized in that: described screwed hole A(202) quantity is 7.
7. the processing method of a kind of rotary shuttle race according to claim 1, it is characterized in that: described heat treatment method, rotary shuttle race is bulk heat treatmet, hardening heat 830 DEG C, temperature 200 DEG C, the hardness after heat treatment is HV650-750.
8. the processing method of a kind of rotary shuttle race according to claim 1, it is characterized in that: described surface treatment method, comprise the plating nickel on surface of sandblasting and shuttle pin (7), first sand-blasting machine is adopted to carry out surface treatment to rotary shuttle race, remove surface spikes, dirt, and then the plating nickel on surface carrying out shuttle pin (7).
9. the processing method of a kind of rotary shuttle race according to claim 1, it is characterized in that: described deburring, to all positions processed, remove burr, described inspection, tested in the position processed, prevent underproof product from flowing into next procedure, described polishing, adopt polishing machine, use wool bob mucosin steel sand and green oil, overall polishing is carried out to rotary shuttle race, make surface become light smoothly.
10. the processing method of a kind of rotary shuttle race according to claim 1, is characterized in that: described cleaning, first, adds 5% brightener clean 1 minute with water, then, dry up moisture content with air compressor machine tracheae.
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| CN201510804975.4A CN105312856B (en) | 2015-11-20 | 2015-11-20 | A kind of processing method of rotary shuttle race |
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| CN201510804975.4A CN105312856B (en) | 2015-11-20 | 2015-11-20 | A kind of processing method of rotary shuttle race |
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| CN105312856B CN105312856B (en) | 2017-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710412A (en) * | 2016-04-11 | 2016-06-29 | 哈尔滨建成集团有限公司 | Clamp special for hole drilling of thin-wall conic body window |
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| CN85103445A (en) * | 1985-04-22 | 1986-10-22 | 山东省济宁纺织器材厂 | A kind of plastics shuttle |
| CN1818179A (en) * | 2006-03-06 | 2006-08-16 | 郑州豫达机械制造有限公司 | Composite shuttle for loom and production thereof |
| CN102031649A (en) * | 2010-12-24 | 2011-04-27 | 宁波市鄞州勇耀缝制机械有限公司 | Outer shuttle of rotating shuttle and manufacturing process thereof |
| CN102161150A (en) * | 2011-05-19 | 2011-08-24 | 宁波市鄞州勇耀缝制机械有限公司 | Manufacturing process of external shuttle of rotating shuttle |
| CN102615307A (en) * | 2012-04-06 | 2012-08-01 | 健雄职业技术学院 | Drilling tool for radial hole of cylindrical part |
| CN103952864A (en) * | 2014-04-28 | 2014-07-30 | 宁波市鄞州勇耀缝制机械有限公司 | Technology for manufacturing external shuttle of rotating shuttle of sewing machine |
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2015
- 2015-11-20 CN CN201510804975.4A patent/CN105312856B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103445A (en) * | 1985-04-22 | 1986-10-22 | 山东省济宁纺织器材厂 | A kind of plastics shuttle |
| CN1818179A (en) * | 2006-03-06 | 2006-08-16 | 郑州豫达机械制造有限公司 | Composite shuttle for loom and production thereof |
| CN102031649A (en) * | 2010-12-24 | 2011-04-27 | 宁波市鄞州勇耀缝制机械有限公司 | Outer shuttle of rotating shuttle and manufacturing process thereof |
| CN102161150A (en) * | 2011-05-19 | 2011-08-24 | 宁波市鄞州勇耀缝制机械有限公司 | Manufacturing process of external shuttle of rotating shuttle |
| CN102615307A (en) * | 2012-04-06 | 2012-08-01 | 健雄职业技术学院 | Drilling tool for radial hole of cylindrical part |
| CN103952864A (en) * | 2014-04-28 | 2014-07-30 | 宁波市鄞州勇耀缝制机械有限公司 | Technology for manufacturing external shuttle of rotating shuttle of sewing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105710412A (en) * | 2016-04-11 | 2016-06-29 | 哈尔滨建成集团有限公司 | Clamp special for hole drilling of thin-wall conic body window |
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| CN105312856B (en) | 2017-07-28 |
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Inventor after: Shao Jia Inventor after: Kang Lele Inventor after: Li Huan Inventor before: Shao Jia |
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Address after: 214500 Unity Industrial Park, Chengbei Park, Jingjiang Economic Development Zone, Taizhou City, Jiangsu Province Patentee after: Jingjiang Jiajia Precision Machinery Technology Co., Ltd. Address before: 214500 Unity Industrial Park, Chengbei Park, Jingjiang Economic Development Zone, Taizhou City, Jiangsu Province Patentee before: JINGJIANG JIAJIA ENGINEERING MACHINERY MANUFACTURING CO., LTD. |
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Denomination of invention: A processing method of rotary shuttle machine Effective date of registration: 20210908 Granted publication date: 20170728 Pledgee: Bank of Jiangsu Co.,Ltd. Jingjiang sub branch Pledgor: JINGJIANG JIAJIA PRECISION MACHINERY TECHNOLOGY Co.,Ltd. Registration number: Y2021980008985 |