CN114309822B - Manufacturing method of arc bevel gear - Google Patents
Manufacturing method of arc bevel gear Download PDFInfo
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- CN114309822B CN114309822B CN202210017683.6A CN202210017683A CN114309822B CN 114309822 B CN114309822 B CN 114309822B CN 202210017683 A CN202210017683 A CN 202210017683A CN 114309822 B CN114309822 B CN 114309822B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 238000000227 grinding Methods 0.000 claims abstract description 15
- 238000005238 degreasing Methods 0.000 claims abstract description 14
- 238000007689 inspection Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000002950 deficient Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000005496 tempering Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 206010044048 Tooth missing Diseases 0.000 claims description 3
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- 239000007788 liquid Substances 0.000 claims description 3
- 238000012797 qualification Methods 0.000 claims description 3
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- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
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Abstract
The invention discloses a manufacturing method of a curved bevel gear, which relates to the technical field of gear manufacturing and comprises the following steps: blank preparation, blank warehousing, degreasing and washing, heat treatment, tooth cutting, finish machining, tooth grinding, phosphating treatment, quality inspection of finished products and warehousing and storage. The invention has the beneficial effects that: the method has the advantages of simple steps and good continuity of the process flow, effectively improves the production efficiency through the coordinated operation of equipment and manpower, shortens the manufacturing period, and can remove burrs and trim errors through grinding and polishing the connection part of the semi-finished gear and the teeth, effectively improves the precision of the finished arc bevel gear, reduces the defective rate and further ensures the quality of the finished arc bevel gear.
Description
Technical Field
The invention relates to the technical field of gear manufacturing, in particular to a manufacturing method of a curved bevel gear.
Background
Bevel gears are also known as bevel gears and are widely used in industrial transmission equipment such as vehicle differentials, locomotives, ships, power plants, steel mills, railway track detection, and the like. Generally, the tooth number, the modulus, the pressure angle, the tooth top height, the tooth root height, the face cone angle, the taper angle, the root cone angle, the back cone distance, the crown distance, the mounting distance, the fixed chord tooth thickness, the fixed chord tooth height, the deflection coefficient, the side gap and the like can be divided into various structures.
At present, the existing arc bevel gear manufacturing method needs to use a plurality of machine tools and milling machines, so that a plurality of sets of tools and cutters are needed, the manufacturing period is long, the continuity of the technological process is poor, the production efficiency is low, finish machining treatment is not carried out on the semi-finished arc bevel gear, the precision of the finished arc bevel gear is easy to be reduced, the quality is poor, and the defective rate is high.
Disclosure of Invention
The invention aims to solve the problems, and provides a manufacturing method of the arc bevel gear, which can effectively reduce the defective rate, thereby ensuring the quality of the finished product of the arc bevel gear.
The invention realizes the aim through the following technical proposal, and the manufacturing method of the arc bevel gear comprises the following steps:
1) Preparing a blank: firstly, determining the size specification of a blank according to the data of a gear design drawing, and then cutting the raw material to obtain the blank with the required specification and size;
2) And (5) blank warehouse entry: checking, accepting and warehousing the blank manufactured in the step 1), distinguishing qualified products and defective products, handling and warehousing the checked qualified blank, and remarking the names, the sizes and the specifications of the blank on a warehouse entry list;
3) Degreasing and washing: firstly, placing the blank subjected to the inspection and warehousing in the step 2) into degreasing liquid for dipping degreasing, wherein the degreasing temperature is 35-55 ℃, then, flushing the processed blank with high-pressure water, finally, placing the blank into a drying chamber for drying, and boxing and storing after the drying treatment is finished;
4) And (3) heat treatment: quenching and tempering the blank subjected to the treatment in the step 3), wherein the quenching time is 20-40 minutes, the tempering time is 10-30 minutes, and water cooling is performed after the treatment is completed;
5) Tooth cutting: placing the blank processed in the step 4) on a gear cutting machine for gear cutting processing to prepare a semi-finished gear;
6) And (3) finishing: placing the semi-finished gear manufactured in the step 5) on a clamping device for clamping and fixing, and grinding the connecting part of the semi-finished gear through a grinding device to enable the connecting part to reach the finished product tolerance;
7) Grinding teeth: placing the semi-finished gear processed in the step 6) on a lapping machine for lapping, and polishing teeth of the semi-finished gear to remove burrs and improve the precision of the semi-finished gear to obtain a finished gear;
8) Phosphating: immersing the finished gear treated in the step 7) into a phosphating solution for phosphating at 80-90 ℃ for 10-20 minutes, and drying in a shade after finishing;
9) And (5) quality inspection of finished products: sampling quality inspection is carried out on the finished gear processed in the step 8), so that no obvious scratch, no tooth missing and no deformation are ensured on the outer surface of the gear, and labeling is carried out after the qualification is confirmed;
10 Warehousing and storing: and 9) registering the finished gear in batches according to the labels after the finished gear is qualified through the inspection in the step 9), and uniformly warehousing and storing the finished gear.
Through adopting above-mentioned technical scheme, the step is simple, and the process flow continuity is good, and through equipment and artificial coordinated operation, has effectively promoted production efficiency, has reduced the preparation cycle, can grind and polish processing to semi-manufactured goods gear's junction and tooth to can remove the burr, the trimming error has effectively promoted the precision of finished product arc bevel gear, reduces the defective rate, thereby has guaranteed arc bevel gear's finished product quality.
As a further arrangement of the present invention, the clamping device in the step 6) includes a workbench and a fixed support fixedly installed on the workbench, a sliding support parallel to the fixed support and a driving mechanism for driving the sliding support to move horizontally along the length direction of the workbench are provided on the workbench, and a thimble for abutting against the gear is provided on one surface of the sliding support facing the fixed support.
Through adopting above-mentioned technical scheme, owing to be provided with clamping device, then when the connection position of semi-manufactured goods gear carries out grinding treatment, accessible actuating mechanism drive sliding support removes to fixed bolster, thereby compresses tightly the gear on fixed bolster through the thimble conflict gear, realizes the centre gripping location of semi-manufactured goods gear, and centre gripping stability is good and the fastness is high, makes things convenient for the connection position of semi-manufactured goods gear to carry out abrasive machining, and the operation is comparatively convenient simple, and the location is accurate to arc bevel gear's machining precision has effectively been guaranteed.
As a further arrangement of the invention, the driving mechanism comprises a linear cylinder fixedly mounted on the workbench, and a push rod of the linear cylinder is fixedly connected to the sliding support.
Through adopting above-mentioned technical scheme, because actuating mechanism includes sharp cylinder, and the push rod fixed connection of sharp cylinder is on the sliding support, then when needs drive sliding support horizontal migration, only need start sharp cylinder, can drive sliding support and carry out horizontal round trip movement thereupon through the concertina movement of push rod, and the operation is comparatively convenient simple, and the drive is comparatively steady.
As a further arrangement of the invention, the stationary support comprises a locking element comprising a finger cylinder, the output end of which is provided with a clamp for gripping the gear.
Through adopting above-mentioned technical scheme, because the fixed bolster includes the locking piece, then place semi-manufactured goods gear in on clamping device and carry out the centre gripping fixed before, can aim at the fixed bolster with semi-manufactured goods gear's umbrella end earlier, rethread finger cylinder drive anchor clamps open, after embedding semi-manufactured goods gear's umbrella end between the anchor clamps, rethread finger cylinder drive anchor clamps draw in, thereby can firmly press from both sides semi-manufactured goods gear's umbrella end, realize the prepositioning clamp before the semi-manufactured goods gear centre gripping is fixed, avoid semi-manufactured goods gear's umbrella end to appear the position skew in the course of working, thereby guaranteed the machining effect.
As a further arrangement of the invention, the clamp comprises a first clamping jaw and a second clamping jaw which are arranged oppositely, and the first clamping jaw and the second clamping jaw are arc-shaped.
Through adopting above-mentioned technical scheme, because anchor clamps are including being first clamping jaw and the second clamping jaw that set up relatively, then fold through control first clamping jaw and second clamping jaw and can realize the centre gripping of the umbrella end of semi-manufactured goods gear, and because first clamping jaw and second clamping jaw all are the arc to can agree with the shape of the umbrella end of semi-manufactured goods gear well, make the centre gripping more firm reliable.
As a further arrangement of the invention, a clamping block for inserting between the gear teeth is arranged on each of the first clamping jaw and the second clamping jaw.
Through adopting above-mentioned technical scheme, owing to all be provided with the fixture block on the relative one side of first clamping jaw and second clamping jaw, then when the umbrella end of control first clamping jaw and second clamping jaw fold the centre gripping semi-manufactured goods gear, the fixture block can insert the gear tooth with it, through the mutual interlock between fixture block and the tooth, can make the centre gripping of first clamping jaw and second clamping jaw semi-manufactured goods gear umbrella end more firm, be difficult for rocking.
As a further arrangement of the invention, the thimble is provided with a thread head, and one surface of the sliding support facing the fixed support is provided with a thread hole matched with the thread head.
Through adopting above-mentioned technical scheme, owing to be provided with the screw thread head on the thimble, and offered the screw hole that matches with the screw thread head on the one side of sliding support orientation fixed bolster, then after the thimble is because of long-term use leads to wearing and tearing to warp, can twist the thimble and pull down the thimble from sliding support, the operation is comparatively convenient simple.
As a further arrangement of the invention, a slideway is arranged at the bottom of the sliding support, and a slide bar which is in sliding connection with the slideway is arranged on the workbench.
Through adopting above-mentioned technical scheme, owing to offered the slide in the sliding support bottom, and set up on the workstation with slide sliding connection's draw runner, then when driving sliding support rectilinear movement through actuating mechanism, through the draw runner to the spacing of slide, can avoid sliding support to take place the position deviation when removing to clamping device's accurate centre gripping has been guaranteed.
In summary, the invention has the following beneficial effects:
1. the method has simple steps and good continuity of the process flow, effectively improves the production efficiency through the coordinated operation of equipment and manpower, shortens the manufacturing period, and can remove burrs and trim errors through grinding and polishing the connection part of the semi-finished gear and the teeth, effectively improves the precision of the finished arc bevel gear, reduces the defective rate and further ensures the quality of the finished arc bevel gear;
2. according to the invention, by arranging the clamping device, the semi-finished gear can be clamped and fixed on the clamping device, the clamping stability is good, the firmness is high, the grinding processing of the connecting part of the semi-finished gear is convenient, the operation is convenient and simple, the positioning is accurate, and the processing precision of the arc bevel gear is effectively ensured.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic diagram of a clamping device according to the present invention;
FIG. 3 is a schematic diagram of a clamping device according to a second embodiment of the present invention;
FIG. 4 is a schematic view of a sliding support and thimble according to the present invention;
fig. 5 is a schematic structural view of a locking member in the present invention.
Reference numerals: 1. a work table; 2. a fixed support; 3. a sliding support; 4. a thimble; 5. a straight line cylinder; 6. a push rod; 7. a finger cylinder; 8. a first jaw; 9. a second jaw; 10. a clamping block; 11. a thread head; 12. a threaded hole; 13. a slideway; 14. a slide bar.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a method for manufacturing a curved bevel gear includes the steps of:
1) Preparing a blank: firstly, determining the size specification of a blank according to the data of a gear design drawing, and then cutting the raw material to obtain the blank with the required specification and size;
2) And (5) blank warehouse entry: checking, accepting and warehousing the blank manufactured in the step 1), distinguishing qualified products and defective products, handling and warehousing the checked qualified blank, and remarking the names, the sizes and the specifications of the blank on a warehouse entry list;
3) Degreasing and washing: firstly, placing the blank subjected to the inspection and warehousing in the step 2) into degreasing liquid for dipping degreasing, wherein the degreasing temperature is 35-55 ℃, then, flushing the processed blank with high-pressure water, finally, placing the blank into a drying chamber for drying, and boxing and storing after the drying treatment is finished;
4) And (3) heat treatment: quenching and tempering the blank subjected to the treatment in the step 3), wherein the quenching time is 20-40 minutes, the tempering time is 10-30 minutes, and water cooling is performed after the treatment is completed;
5) Tooth cutting: placing the blank processed in the step 4) on a gear cutting machine for gear cutting processing to prepare a semi-finished gear;
6) And (3) finishing: placing the semi-finished gear manufactured in the step 5) on a clamping device for clamping and fixing, and grinding the connecting part of the semi-finished gear through a grinding device to enable the connecting part to reach the finished product tolerance;
7) Grinding teeth: placing the semi-finished gear processed in the step 6) on a lapping machine for lapping, and polishing teeth of the semi-finished gear to remove burrs and improve the precision of the semi-finished gear to obtain a finished gear;
8) Phosphating: immersing the finished gear treated in the step 7) into a phosphating solution for phosphating at 80-90 ℃ for 10-20 minutes, and drying in a shade after finishing;
9) And (5) quality inspection of finished products: sampling quality inspection is carried out on the finished gear processed in the step 8), so that no obvious scratch, no tooth missing and no deformation are ensured on the outer surface of the gear, and labeling is carried out after the qualification is confirmed;
10 Warehousing and storing: and 9) registering the finished gear in batches according to the labels after the finished gear is qualified through the inspection in the step 9), and uniformly warehousing and storing the finished gear.
The manufacturing method adopts the manufacturing method flow of blank preparation, blank warehousing, degreasing and washing, heat treatment, tooth cutting, finish machining, tooth grinding, phosphating, finished product quality inspection and warehousing storage, has simple steps and good continuity of the process flow, effectively improves the production efficiency through the coordination operation of equipment and manpower, shortens the manufacturing period, and can grind and polish the connecting part of the semi-finished gear and the teeth through the steps of finish machining and tooth grinding after the tooth cutting step, thereby removing burrs and trimming errors, effectively improving the precision of the finished arc bevel gear, reducing the defective rate and further ensuring the finished product quality of the arc bevel gear.
Referring to fig. 2 and 3, the clamping device in step 6) includes a workbench 1 and a fixed support 2 fixedly mounted on the workbench 1, a sliding support 3 parallel to the fixed support 2 and a driving mechanism for driving the sliding support 3 to move horizontally along the length direction of the workbench 1 are arranged on the workbench 1, a thimble 4 for abutting against a gear is arranged on one surface of the sliding support 3 facing the fixed support 2, the driving mechanism includes a linear cylinder 5 fixedly mounted on the workbench 1, a push rod 6 of the linear cylinder 5 is fixedly connected to the sliding support 3, a slide way 13 is arranged at the bottom of the sliding support 3, and a slide bar 14 in sliding connection with the slide way 13 is arranged on the workbench 1.
Referring to fig. 2 and 5, the fixing support 2 includes a locking member, the locking member includes a finger cylinder 7, a clamp for gripping a gear is provided at an output end of the finger cylinder 7, the clamp includes a first clamping jaw 8 and a second clamping jaw 9 which are oppositely arranged, the first clamping jaw 8 and the second clamping jaw 9 are arc-shaped, and a clamping block 10 for inserting gear teeth is provided on the first clamping jaw 8 and the second clamping jaw 9.
Referring to fig. 4, a threaded head 11 is disposed on the thimble 4, and a threaded hole 12 matching the threaded head 11 is disposed on a surface of the sliding support 3 facing the fixed support 2.
Due to the fact that the clamping device is arranged, when the connecting part of the semi-finished gear is subjected to grinding treatment, the semi-finished gear can be placed on the clamping device to be clamped and fixed, during specific operation, the semi-finished gear to be processed can be placed between the fixed support 2 and the sliding support 3, then the sliding support 3 is driven to move towards the fixed support 2 through the driving mechanism, the gear is tightly pressed on the fixed support 2 through the ejector pin 4 in a contact mode, clamping and positioning of the semi-finished gear are achieved, the clamping stability is good, the firmness is high, the grinding treatment is conducted on the connecting part of the semi-finished gear conveniently, the operation is convenient and simple, the positioning is accurate, and therefore machining precision of the arc bevel gear is effectively guaranteed.
Because the fixed support 2 includes the locking piece, the locking piece includes finger cylinder 7, and be provided with the anchor clamps on the output of finger cylinder 7, then place semi-manufactured goods gear in clamping device on carry out the centre gripping fixed, can aim at fixed support 2 with the umbrella end of semi-manufactured goods gear earlier, rethread finger cylinder 7 drive anchor clamps open, after embedding the umbrella end of semi-manufactured goods gear between the anchor clamps, rethread finger cylinder 7 drive anchor clamps draw in, thereby can firmly press from both sides the umbrella end of semi-manufactured goods gear, realize the pre-positioning clamp before semi-manufactured goods gear centre gripping is fixed, avoid the umbrella end of semi-manufactured goods gear to appear the position skew in the course of working, thereby guaranteed the processing effect, wherein, because anchor clamps are including being first clamping jaw 8 and the second clamping jaw 9 that set up relatively, then can realize the centre gripping of the umbrella end of semi-manufactured goods gear through controlling first clamping jaw 8 and second clamping jaw 9 and fold, and because first clamping jaw 8 and second clamping jaw 9 all are the arc, thereby can agree with the shape looks with the umbrella end of semi-manufactured goods gear well, make the centre gripping more firm reliable, and because at first clamping jaw 8 and second clamping jaw 9 are provided with the second clamping jaw 10 and are more firm and the mutual clamping jaw 10, the clamping jaw 10 can be kept close for the mutual clamping jaw 10 when the clamping jaw is the second clamping jaw is the clamping jaw is the opposite, the clamping jaw is the end.
Due to the fact that the threaded head 11 is arranged on the thimble 4, the threaded hole 12 matched with the threaded head 11 is formed in one face, facing the fixed support 2, of the sliding support 3, the thimble 4 can be detachably mounted on the sliding support 3 through threaded connection of the threaded head 11 and the threaded hole 12, and after the thimble 4 is deformed due to abrasion caused by long-term use, the thimble 4 can be screwed and detached from the sliding support 3, and operation is convenient and simple.
Because slide 13 has been seted up in slide support 3 bottom, and set up slide bar 14 with slide 13 sliding connection on workstation 1, then when driving slide support 3 rectilinear movement through actuating mechanism, through the spacing of slide bar 14 to slide 13, can avoid slide support 3 to take place the position deviation when moving to clamping device's accurate centre gripping has been guaranteed.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (5)
1. A manufacturing method of a cambered bevel gear is characterized in that: the method comprises the following steps:
1) Preparing a blank: firstly, determining the size specification of a blank according to the data of a gear design drawing, and then cutting the raw material to obtain the blank with the required specification and size;
2) And (5) blank warehouse entry: checking, accepting and warehousing the blank manufactured in the step 1), distinguishing qualified products and defective products, handling and warehousing the checked qualified blank, and remarking the names, the sizes and the specifications of the blank on a warehouse entry list;
3) Degreasing and washing: firstly, placing the blank subjected to the inspection and warehousing in the step 2) into degreasing liquid for dipping degreasing, wherein the degreasing temperature is 35-55 ℃, then, flushing the processed blank with high-pressure water, finally, placing the blank into a drying chamber for drying, and boxing and storing after the drying treatment is finished;
4) And (3) heat treatment: quenching and tempering the blank subjected to the treatment in the step 3), wherein the quenching time is 20-40 minutes, the tempering time is 10-30 minutes, and water cooling is performed after the treatment is completed;
5) Tooth cutting: placing the blank processed in the step 4) on a gear cutting machine for gear cutting processing to prepare a semi-finished gear;
6) And (3) finishing: placing the semi-finished gear manufactured in the step 5) on a clamping device for clamping and fixing, and grinding the connecting part of the semi-finished gear through a grinding device to enable the connecting part to reach the finished product tolerance;
7) Grinding teeth: placing the semi-finished gear processed in the step 6) on a lapping machine for lapping, and polishing teeth of the semi-finished gear to remove burrs and improve the precision of the semi-finished gear to obtain a finished gear;
8) Phosphating: immersing the finished gear treated in the step 7) into a phosphating solution for phosphating at 80-90 ℃ for 10-20 minutes, and drying in a shade after finishing;
9) And (5) quality inspection of finished products: sampling quality inspection is carried out on the finished gear processed in the step 8), so that no obvious scratch, no tooth missing and no deformation are ensured on the outer surface of the gear, and labeling is carried out after the qualification is confirmed;
10 Warehousing and storing: registering the finished gear in batches according to the labels after the finished gear is qualified through the step 9), and uniformly warehousing and storing the finished gear;
the clamping device in the step 6) comprises a workbench (1) and a fixed support (2) fixedly mounted on the workbench (1), a sliding support (3) parallel to the fixed support (2) and a driving mechanism for driving the sliding support (3) to horizontally move along the length direction of the workbench (1) are arranged on the workbench (1), a thimble (4) for abutting against a gear is arranged on one surface of the sliding support (3) facing the fixed support (2), the driving mechanism comprises a linear cylinder (5) fixedly mounted on the workbench (1), a push rod (6) of the linear cylinder (5) is fixedly connected to the sliding support (3), the fixed support (2) comprises a locking piece, the locking piece comprises a finger cylinder (7), and a clamp for grabbing the gear is arranged at the output end of the finger cylinder (7).
2. The method of manufacturing a curved bevel gear according to claim 1, wherein: the clamp comprises a first clamping jaw (8) and a second clamping jaw (9) which are oppositely arranged, and the first clamping jaw (8) and the second clamping jaw (9) are arc-shaped.
3. A method of manufacturing a curved bevel gear according to claim 2, wherein: clamping blocks (10) used for being inserted between gear teeth are arranged on the first clamping jaw (8) and the second clamping jaw (9).
4. The method of manufacturing a curved bevel gear according to claim 1, wherein: the thimble (4) is provided with a thread head (11), and a surface of the sliding support (3) facing the fixed support (2) is provided with a threaded hole (12) matched with the thread head (11).
5. The method of manufacturing a curved bevel gear according to claim 1, wherein: the bottom of the sliding support (3) is provided with a slide way (13), and the workbench (1) is provided with a slide bar (14) which is in sliding connection with the slide way (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210017683.6A CN114309822B (en) | 2022-01-08 | 2022-01-08 | Manufacturing method of arc bevel gear |
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| CN202210017683.6A CN114309822B (en) | 2022-01-08 | 2022-01-08 | Manufacturing method of arc bevel gear |
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| CN114309822A CN114309822A (en) | 2022-04-12 |
| CN114309822B true CN114309822B (en) | 2023-06-20 |
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| CN1958216A (en) * | 2006-08-18 | 2007-05-09 | 株洲齿轮有限责任公司 | Combined technology for milling and grinding tooth parts of spiral taper gear |
| JP2012096251A (en) * | 2010-10-29 | 2012-05-24 | Daihatsu Motor Co Ltd | Method of manufacturing gear |
| CN103286533B (en) * | 2013-05-28 | 2015-10-28 | 重庆市首业机械制造有限公司 | Driving bevel gear axis for rear axle processing technology |
| CN103978209B (en) * | 2014-04-02 | 2017-05-03 | 浙江丰立机电有限公司 | Transmission gear manufacturing process based on powder metallurgy |
| CN214978233U (en) * | 2020-12-30 | 2021-12-03 | 扬州汇峰新材料有限公司 | High-precision gear ring seat polishing device |
| CN113385748A (en) * | 2021-07-06 | 2021-09-14 | 无锡盛科石油机械有限公司 | Gear milling machining process |
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Denomination of invention: A manufacturing method for curved bevel gears Effective date of registration: 20230718 Granted publication date: 20230620 Pledgee: Bank of China Limited by Share Ltd. Xinchang branch Pledgor: Zhejiang Xinchang Huimeng Machinery Co.,Ltd. Registration number: Y2023330001496 |
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