CN113695684A - Large-modulus gear tooth surface polishing equipment and polishing process - Google Patents

Large-modulus gear tooth surface polishing equipment and polishing process Download PDF

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Publication number
CN113695684A
CN113695684A CN202110860403.3A CN202110860403A CN113695684A CN 113695684 A CN113695684 A CN 113695684A CN 202110860403 A CN202110860403 A CN 202110860403A CN 113695684 A CN113695684 A CN 113695684A
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CN
China
Prior art keywords
tooth surface
pneumatic
numerical control
gear
milling machine
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110860403.3A
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Chinese (zh)
Inventor
吴有象
李秉纪
张波波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Shuanghuan Driveline Co ltd
Original Assignee
Zhejiang Shuanghuan Driveline Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Shuanghuan Driveline Co ltd filed Critical Zhejiang Shuanghuan Driveline Co ltd
Priority to CN202110860403.3A priority Critical patent/CN113695684A/en
Publication of CN113695684A publication Critical patent/CN113695684A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F19/00Finishing gear teeth by other tools than those used for manufacturing gear teeth
    • B23F19/02Lapping gear teeth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F19/00Finishing gear teeth by other tools than those used for manufacturing gear teeth

Abstract

The invention provides a large-module gear tooth surface polishing device and a polishing process, wherein the large-module gear tooth surface polishing device comprises a numerical control gear edge milling machine tool and is characterized in that: the pneumatic control mechanism is installed to one side of the milling cutter axle of numerical control gear edge milling machine tool, pneumatic control mechanism includes but high-speed rotatory pneumatic tool, pneumatic tool's tip is equipped with the pneumatic bistrique that can carry out the work piece polishing with work piece axle linkage and along work piece flank of tooth involute motion. The invention is directly transformed on the chamfering machine without newly designing equipment; and the two processes are completed by the same equipment, so that the clamping times are reduced, and the occupied area of the equipment is also reduced.

Description

Large-modulus gear tooth surface polishing equipment and polishing process
Technical Field
The invention belongs to the technical field of machining, and particularly relates to large-modulus gear tooth surface polishing equipment and a polishing process.
Background
At present, the finish machining of the large-modulus tooth surface generally adopts finish rolling and forming gear grinding to carry out the finish machining of the tooth surface.
1. The service life of the precision rolling cutting tool is long, the processing time is long, and the cost of the cutting tool is high;
2. the forming mill has low efficiency, long processing beat, large equipment investment and high single-piece cost.
The gear hobbing process in the prior gear tooth surface finish machining process comprises gear milling and gear hobbing, chamfering, post-heat forming gear grinding and the like; different processes need different equipment to be realized, for example, the milling of teeth and chamfering are realized by adopting a milling machine shown in fig. 1, and the molding of the grinding teeth needs to be realized by taking down a workpiece and clamping the workpiece to the molding grinding machine, so that the cost is high, and the processing time is long.
Disclosure of Invention
In order to solve the problems, the invention provides the large-modulus gear tooth surface polishing equipment and the polishing process, which have the advantages of low cost, less processing takt, reduced logistics nodes and less equipment investment.
The technical scheme adopted by the invention is as follows:
the utility model provides a big modulus gear flank of tooth polishing equipment, includes numerical control gear edge milling machine, its characterized in that: the pneumatic control mechanism is installed to one side of the milling cutter axle of numerical control gear edge milling machine tool, pneumatic control mechanism includes but high-speed rotatory pneumatic tool, pneumatic tool's tip is equipped with the pneumatic bistrique that can carry out the work piece polishing with work piece axle linkage and along work piece flank of tooth involute motion.
Furthermore, the pneumatic tool is connected with the numerical control gear edge milling machine tool through the fixed base.
Furthermore, the fixed base is connected with the numerical control gear edge milling machine tool through a telescopic cylinder. When equipment is subjected to cyclone chamfering, the telescopic cylinder is kept in a retreating state, so that interference is avoided; when the grinding and forming are carried out, the telescopic cylinder extends out under the control of a program, and the pneumatic grinding head rotates at a high speed and performs polishing motion along the involute track of the tooth surface.
Furthermore, scalable cylinder includes cylinder base and can follow the cylinder slide that cylinder base is flexible, the fixed baseplate is fixed on the cylinder slide, the cylinder base is fixed in one side of the milling cutter axle of numerical control gear edge milling machine.
Further, the pneumatic grinding head is a thousand impeller.
Further, the numerical control gear edge milling machine is an YKF9332 type numerical control gear edge milling machine.
Further, the numerical control gear edge milling machine is controlled by a Siemens 808D numerical control system.
The polishing process of the large-modulus gear tooth surface polishing equipment is characterized in that: and synchronously starting the pneumatic grinding head to carry out a polishing process when the workpiece is chamfered. The invention finishes the function of polishing the tooth surface in the chamfering process without adding extra processing time; taking 16Mn as an example, in the gear hobbing process, 30min is needed for gear milling and gear hobbing; chamfering for 10min, and polishing teeth for 15 min; the whole gear hobbing-chamfering-gear polishing time is consistent with the gear hobbing-chamfering time, all the time is 30min, the bottleneck process is gear hobbing, the due beat is not changed, and the beat of the forming gear grinding is directly cancelled, so that the processing beat is reduced.
Further, the polishing process of the pneumatic grinding head comprises the following steps: the rotation of the workpiece spindle is combined with the radial feed motion of the pneumatic grinding head, constant linear velocity uniform grinding motion is carried out along the involute direction of the tooth surface, and meanwhile, uniform motion is carried out along the tooth width direction, so that the whole tooth surface polishing of the gear is realized.
Further, the workpiece of the large-modulus gear tooth surface polishing equipment is machined by a dry process.
The invention has the advantages that:
1. the cost advantage is as follows: the hot front machining procedure is moved before the hot post-forming gear grinding procedure, the forming gear grinding procedure is about 300 yuan per piece, the hot front gear polishing procedure is changed to be within 10 yuan, and the cost is reduced linearly;
2. the beat advantage is as follows: 1 piece of molded gear grinding needs 1 hour, and after polishing, the tooth surface polishing effect is finished in the chamfering process without increasing extra processing time; taking 16Mn as an example, in the gear hobbing process, 30min is needed for gear milling and gear hobbing; chamfering for 10min, and polishing teeth for 15 min; the whole gear hobbing-chamfering-gear polishing time is consistent with the gear hobbing-chamfering time; all the steps are 30min, and the bottleneck process is also hobbing, so that the due tempo is not changed; the beat of the molding gear grinding is directly cancelled.
3. The logistics advantage is that: and the post-heating forming gear grinding is omitted, so that logistics nodes are reduced, and the product turnover speed is increased.
4. The investment is less, the occupied area is small, and the clamping times are reduced: the chamfering machine is directly modified without newly designing equipment; and the two processes are completed by the same equipment, so that the clamping times are reduced, and the occupied area of the equipment is also reduced.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic structural view of the pneumatic control mechanism of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the invention to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example one
Referring to fig. 2 and 3, the embodiment provides a large-module gear tooth surface polishing device, which comprises a numerical control gear edge milling machine 1, wherein a pneumatic control mechanism 2 is installed on one side of a milling cutter shaft 3 of the numerical control gear edge milling machine 1, the pneumatic control mechanism 2 comprises a pneumatic tool 21 capable of rotating at a high speed, and a pneumatic grinding head 22 capable of being linked with a workpiece shaft and performing workpiece polishing along involute motion of a workpiece tooth surface is arranged at the end of the pneumatic tool 21.
The pneumatic tool 21 described in this embodiment is connected to the numerically controlled gear edge milling machine 1 through a fixed base 23. The fixed base 23 is connected with the numerical control gear edge milling machine 1 through a telescopic cylinder. When equipment is subjected to cyclone chamfering, the telescopic cylinder is kept in a retreating state, so that interference is avoided; when the grinding and forming are carried out, the telescopic cylinder extends out under the control of a program, and the pneumatic grinding head rotates at a high speed and performs polishing motion along the involute track of the tooth surface. The telescopic cylinder comprises a cylinder base 24 and a cylinder sliding seat 25 which can stretch along the cylinder base 24, the fixed base 23 is fixed on the cylinder sliding seat 25, and the cylinder base 24 is fixed on one side of a milling cutter shaft of the numerical control gear edge milling machine tool 1. The invention finishes the function of polishing the tooth surface in the chamfering process without adding extra processing time; taking 16Mn as an example, in the gear hobbing process, 30min is needed for gear milling and gear hobbing; chamfering for 10min, and polishing teeth for 15 min; the whole gear hobbing-chamfering-gear polishing time is consistent with the gear hobbing-chamfering time, all the time is 30min, the bottleneck process is gear hobbing, the due beat is not changed, and the beat of the forming gear grinding is directly cancelled, so that the processing beat is reduced.
Pneumatic grinding head 22 in the present embodiment is a thousand impellers. The high-speed rotation of the thousand impellers is used, and the tooth surfaces are polished on the premise of not influencing the gear precision of the thousand impellers. The roughness may be stabilized within rz7.5max.
The numerical control gear edge milling machine tool in this embodiment is an YKF9332 type numerical control gear edge milling machine tool, and can simultaneously perform tooth profile edge milling on the upper and lower end faces of disc-type and short-shaft-type gear parts under the control of a siemens 808D numerical control system.
In the embodiment, the machine tool is in a vertical layout, and two cutter shafts are respectively arranged on two adjacent combined sliding seats of the same special-shaped stand column and have the function of tooth profile edge milling. The height of the polishing position and the polishing speed can be adjusted according to the parameter difference of the processed workpiece. The indexing and feeding motion of the workpiece adopts the numerical control difference compensation principle. The workpiece spindle is driven by a servo motor, so that the rotation speed can be adjusted. The rotation of the workpiece spindle is combined with the radial feed motion of the grinding head, constant linear velocity uniform grinding motion is carried out along the involute direction of the tooth surface, and meanwhile, uniform motion is carried out along the tooth width direction, so that the whole tooth surface polishing of the gear is realized.
The machine tool is processed by adopting a dry process, the machine tool is compact in structure, fully-enclosed protection is adopted, the automation degree is high, and the protective cover is provided with the observation window and is pneumatically opened and closed.
The invention has the advantages of low capital investment, small occupied area, reduced clamping times, direct modification on the chamfering machine and no need of newly designed equipment; and the two processes are completed by the same equipment, so that the clamping times are reduced, and the occupied area of the equipment is also reduced.
Example two
The embodiment provides a polishing process of the large-module gear tooth surface polishing equipment, which is characterized in that the pneumatic grinding heads 22 are synchronously started to perform a polishing process when a workpiece is chamfered.
The polishing process of the pneumatic grinding head in this embodiment includes: the rotation of the workpiece spindle is combined with the radial feed motion of the pneumatic grinding head 22, constant linear velocity uniform grinding motion is carried out along the involute direction of the tooth surface, and meanwhile, uniform motion is carried out along the tooth width direction, so that the whole tooth surface polishing of the gear is realized.
The workpiece of the large-modulus gear tooth surface polishing equipment is machined by a dry process.
The invention has the advantages of cost: the hot front machining procedure is moved before the hot post-forming gear grinding procedure, the forming gear grinding procedure is about 300 yuan per piece, the hot front gear polishing procedure is changed to be within 10 yuan, and the cost is reduced linearly; the beat advantage is as follows: 1 piece of molded gear grinding needs 1 hour, and after polishing, the tooth surface polishing effect is finished in the chamfering process without increasing extra processing time; taking 16Mn as an example, in the gear hobbing process, 30min is needed for gear milling and gear hobbing; chamfering for 10min, and polishing teeth for 15 min; the whole gear hobbing-chamfering-gear polishing time is consistent with the gear hobbing-chamfering time; all the steps are 30min, and the bottleneck process is also hobbing, so that the due tempo is not changed; the beat of the molding gear grinding is directly cancelled. The logistics advantage is that: and the post-heating forming gear grinding is omitted, so that logistics nodes are reduced, and the product turnover speed is increased.

Claims (10)

1. The utility model provides a big modulus gear flank of tooth polishing equipment, includes numerical control gear edge milling machine, its characterized in that: the pneumatic control mechanism is installed to one side of the milling cutter axle of numerical control gear edge milling machine tool, pneumatic control mechanism includes but high-speed rotatory pneumatic tool, pneumatic tool's tip is equipped with the pneumatic bistrique that can carry out the work piece polishing with work piece axle linkage and along work piece flank of tooth involute motion.
2. A large-module gear tooth surface polishing apparatus according to claim 1, wherein: and the pneumatic tool is connected with the numerical control gear edge milling machine tool through the fixed base.
3. A large-module gear tooth surface polishing apparatus according to claim 2, wherein: the fixed base is connected with the numerical control gear edge milling machine tool through a telescopic cylinder.
4. A large-module gear tooth surface polishing apparatus according to claim 3, wherein: the telescopic cylinder comprises a cylinder base and a cylinder sliding seat capable of stretching along the cylinder base, the fixed base is fixed on the cylinder sliding seat, and the cylinder base is fixed on one side of a milling cutter shaft of the numerical control gear edge milling machine tool.
5. A large-module gear tooth surface polishing apparatus according to claim 1, wherein: the pneumatic grinding head is a thousand impellers.
6. A large-module gear tooth surface polishing apparatus according to claim 1, wherein: the numerical control gear edge milling machine is an YKF9332 type numerical control gear edge milling machine.
7. A large-module gear tooth surface polishing apparatus according to claim 1, wherein: the numerical control gear edge milling machine is controlled by a Siemens 808D numerical control system.
8. The polishing process of a large-module gear tooth surface polishing device as claimed in claim 1, wherein: and synchronously starting the pneumatic grinding head to carry out a polishing process when the workpiece is chamfered.
9. The polishing process of claim 8, wherein: the polishing process of the pneumatic grinding head comprises the following steps: the rotation of the workpiece spindle is combined with the radial feed motion of the pneumatic grinding head, constant linear velocity uniform grinding motion is carried out along the involute direction of the tooth surface, and meanwhile, uniform motion is carried out along the tooth width direction, so that the whole tooth surface polishing of the gear is realized.
10. The polishing process of claim 8, wherein: the workpiece of the large-modulus gear tooth surface polishing equipment is processed by a dry process.
CN202110860403.3A 2021-07-28 2021-07-28 Large-modulus gear tooth surface polishing equipment and polishing process Pending CN113695684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110860403.3A CN113695684A (en) 2021-07-28 2021-07-28 Large-modulus gear tooth surface polishing equipment and polishing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110860403.3A CN113695684A (en) 2021-07-28 2021-07-28 Large-modulus gear tooth surface polishing equipment and polishing process

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103273393A (en) * 2013-06-15 2013-09-04 中信戴卡股份有限公司 Online wheel valve-hole burr removing device
CN105328275A (en) * 2014-08-14 2016-02-17 刘荣彦 Automatic four-grinding-head edge grinding and chamfering machine used for super-large-type gear
EP3027345A2 (en) * 2013-07-31 2016-06-08 Gleason-Pfauter Maschinenfabrik GmbH Method for machining tooth edges and machining station designed for this purpose
CN205968488U (en) * 2016-08-25 2017-02-22 天津宝涞精工集团股份有限公司 Grind special machine in omnipotent hole
US20170261068A1 (en) * 2016-03-08 2017-09-14 GM Global Technology Operations LLC Bevel gear set and method of manufacture
CN207724023U (en) * 2017-11-30 2018-08-14 天津百利机械装备集团有限公司中央研究院 A kind of spiral bevel gear chamfering device
CN213437626U (en) * 2020-10-21 2021-06-15 温岭市宇弘机械设备有限公司 Vertical gear edge milling machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103273393A (en) * 2013-06-15 2013-09-04 中信戴卡股份有限公司 Online wheel valve-hole burr removing device
EP3027345A2 (en) * 2013-07-31 2016-06-08 Gleason-Pfauter Maschinenfabrik GmbH Method for machining tooth edges and machining station designed for this purpose
CN105328275A (en) * 2014-08-14 2016-02-17 刘荣彦 Automatic four-grinding-head edge grinding and chamfering machine used for super-large-type gear
US20170261068A1 (en) * 2016-03-08 2017-09-14 GM Global Technology Operations LLC Bevel gear set and method of manufacture
CN205968488U (en) * 2016-08-25 2017-02-22 天津宝涞精工集团股份有限公司 Grind special machine in omnipotent hole
CN207724023U (en) * 2017-11-30 2018-08-14 天津百利机械装备集团有限公司中央研究院 A kind of spiral bevel gear chamfering device
CN213437626U (en) * 2020-10-21 2021-06-15 温岭市宇弘机械设备有限公司 Vertical gear edge milling machine

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