CN111037006A - Method for machining and measuring miniature precise helical gear by taking mandrel as machining reference - Google Patents
Method for machining and measuring miniature precise helical gear by taking mandrel as machining reference Download PDFInfo
- Publication number
- CN111037006A CN111037006A CN201911343004.9A CN201911343004A CN111037006A CN 111037006 A CN111037006 A CN 111037006A CN 201911343004 A CN201911343004 A CN 201911343004A CN 111037006 A CN111037006 A CN 111037006A
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- Prior art keywords
- gear
- meshing
- processing
- measuring
- measurement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
- B23F23/1218—Checking devices for controlling workpieces in machines for manufacturing gear teeth
Abstract
A method for machining and measuring a miniature precise helical gear by taking a mandrel as a machining reference comprises the following steps of 1, machining a hobbing machine to machine precise helical gears: step 2, measuring the tooth profile; and step 3, measuring the gear engagement. The invention can reduce the processing precision deviation of multiple clamping of the machine tool, reduce the measurement error of repeated clamping of tooth profile measurement and meshing measurement, unify the processing, measurement and use standards, and make the tooth profile parameters and the meshing precision of the processed workpiece reach the optimal state on the basis of the precision and the detection capability of the existing machine tool, thereby greatly meeting the requirements of the assembly precision and the meshing stability of the precision gear; the processing and detecting method is flexible and multipurpose, the processing efficiency is high, the utilization rate of the machine tool and the detecting equipment is high, the special condition of a special machine in the traditional processing mode can be effectively avoided, the input cost of the processing equipment is low, and the model change is convenient.
Description
Technical Field
The invention relates to a method for processing and measuring a miniature precise helical gear.
Background
With the rapid development of the mechanical industry, large-batch precision gear products are widely applied, the method for machining and measuring the parts is developed at the same time, the turning and gear milling machining mode meets the machining requirements of the gears at that time, and the industrial development is promoted. With the progress of the mechanical industry, the industries such as modern automobiles, machine tools, aerospace and the like are increasingly developed. The not enough of the processing mode face of tradition processing gear is prominent day by day, the mode equipment input cost of traditional turning gear milling is high, the process velocity is slow, can't satisfy the needs of mass production processing, and the precision grade of product is low moreover, can't realize the requirement of high accuracy precision gear parameter, can't guarantee miniature precision gear low vibration, the requirement of low noise, the urgent need combines product characteristics design one kind can replace the processing mode that traditional turning gear milling, improve production efficiency when guaranteeing the gear precision, reduce the equipment input cost.
Disclosure of Invention
The invention aims to provide a method for machining and measuring a miniature precise helical gear by taking a mandrel as a machining reference, which can improve the machining efficiency, reduce the production cost and ensure the requirement of product size parameters.
The invention mainly comprises a machining equipment tool group and a measuring tool group.
The machining equipment tooling group consists of a gear milling machine, a mandrel tip, a machining blank and a mandrel tip sleeve;
two groups of measuring tools comprise tooth profile measurement and gear meshing measurement, wherein the tooth profile measurement comprises a tooth profile measuring instrument, a detection workpiece, a tooth profile measuring instrument measuring core rod and a core rod deflector rod; the meshing measurement comprises a meshing instrument, a meshing standard gear, a measurement workpiece and a meshing instrument measurement core rod.
The method for processing and measuring the miniature precise helical gear by taking the mandrel as a processing reference comprises the following steps:
(1) fixing a mandrel tip, a mandrel tip sleeve and a blank to be processed: pre-fixing a mandrel tip on a processing main shaft of a gear hobbing machine by a chuck of the main shaft of the gear hobbing machine through a fastening screw, finely adjusting a jackscrew of the chuck, confirming that the mandrel tip jumps within 0.005 by using a dial indicator, screwing the fastening screw, fixing the mandrel tip on the chuck of the main shaft of the gear hobbing machine, fixing a hob on a cutter bar of the gear hobbing machine, sleeving the mandrel tip on a mandrel tip seat of the gear hobbing machine, and arranging a blank to be processed on the mandrel tip;
(2) machining the precise helical teeth: after the parameters and the program of the gear hobbing machine tool are set in the machining process, the gear hobbing machine center seat drives the mandrel center sleeve and the mandrel center to clamp the machined blank at the machining position. The center through hole and the end face of the workpiece are positioned and clamped, the requirement of the miniature precise helical tooth workpiece on the dimensional reference precision is completely met, and the equipment is started to start machining.
Compared with the prior art, the invention has the following advantages:
1. the method can reduce the machining precision deviation of multiple clamping of the machine tool, reduce the measurement error of repeated clamping of tooth profile measurement and meshing measurement, unify machining, measurement and use standards, enable the tooth profile parameters and the meshing precision of a machined workpiece to reach the optimal state on the basis of the precision and the detection capability of the existing machine tool, and greatly meet the requirements of the assembly precision and the meshing stability of the precision gear;
2. the processing and detecting method is flexible and multipurpose, and is widely applied to research and development of similar precise gears.
3. The processing efficiency is high, the utilization rate of the machine tool and the detection equipment is high, the special condition of a special machine in a traditional processing mode can be effectively avoided, the input cost of the processing equipment is low, and the model change is convenient.
Drawings
FIG. 1 is a schematic view of the processing state of the present invention;
FIG. 2 is a schematic view of a machined part of the present invention;
FIG. 3 is a cross-sectional view of a machined part of the present invention;
fig. 4 is a schematic view of a mandrel tip of the present invention;
FIG. 5 is a schematic view of a mandrel tip sleeve of the present invention;
FIG. 6 is a schematic view of a tooth profile measuring device of the present invention;
FIG. 7 is a schematic view of a measuring core rod of the tooth profile measuring apparatus of the present invention;
FIG. 8 is a schematic view of a core rod deflector rod for tooth profile measurement according to the present invention;
FIG. 9 is a schematic front view of the engagement measuring device of the present invention;
FIG. 10 is a schematic view of an engagement measuring mandrel of the present invention;
FIG. 11 is a schematic view of the meshing standard gear of the present invention;
in the figure, 1-mandrel tip, 2-hob, 3-mandrel tip sleeve, 4-blank to be processed, 5-tooth profile measuring instrument measuring mandrel, 6-mandrel deflector rod, 7-meshing standard gear and 8-meshing measuring mandrel.
Detailed Description
The method for processing and measuring the miniature precise helical gear by taking the mandrel as a processing reference comprises the following steps:
in the schematic diagrams of the present invention shown in fig. 1 to 5, step 1, machining the gear hobbing machine machining precision helical teeth:
(1) fixing a mandrel tip sleeve and a blank to be processed: the method comprises the following steps that a mandrel tip 1 is pre-fixed on a processing spindle of a gear hobbing machine through a fastening screw by a chuck of the spindle of the gear hobbing machine, a chuck jackscrew is finely adjusted, a dial indicator is used for confirming that the mandrel tip jumps within 0.005, the fastening screw is screwed, the mandrel tip is fixed on the chuck of the spindle of the gear hobbing machine, a hob 2 is fixed on a cutter bar of the gear hobbing machine, a mandrel tip sleeve 3 is arranged on a base of the mandrel tip, and a blank 4 to be processed is arranged on the mandrel tip;
(2) machining the precise helical teeth: after the parameters and the program of the gear hobbing machine tool are set in the machining process, the gear hobbing machine center seat drives the mandrel center sleeve and the mandrel center to clamp the machined blank at the machining position. The center through hole and the end face of the workpiece are positioned and clamped, the requirement of the miniature precise helical tooth workpiece on the dimensional reference precision is completely met, and the equipment is started to start machining.
In the schematic diagrams of the invention shown in fig. 6 to 8, step 2, tooth profile measurement:
after the workpiece subjected to hobbing is subjected to processing procedures such as chamfering, deburring, cleaning and the like, tooth profile measurement is carried out, a measuring core rod 5 of a tooth profile measuring instrument is fixed on a core rod deflector rod 6 through a fastening screw, then the measuring core rod and the core rod deflector rod are fixed on a main shaft tip of the tooth profile measuring instrument through the fastening screw, the workpiece to be measured is directly installed on the measuring core rod, the workpiece to be measured is fixed by utilizing the taper of the measuring core rod, the tooth profile measuring instrument is started, and the main shaft tip of the tooth profile measuring instrument rotates to drive the core rod deflector rod, the measuring core rod and the workpiece to be measured to.
In the schematic diagrams of the invention shown in fig. 9 to 11, step 3, gear mesh measurement:
inserting a meshing standard gear 7 on a designated rotating shaft of a gear meshing instrument, fixing a meshing measurement core rod 8 on a designated detection platform of the meshing instrument, screwing a fixing screw, directly arranging a workpiece to be detected on the meshing measurement core rod, adjusting the position of the platform to enable the meshing standard gear and the workpiece to be detected to be in contact and meshed with each other, and starting the gear meshing instrument to start measurement.
Claims (1)
1. A method for processing and measuring a miniature precise helical gear by taking a mandrel as a processing reference is characterized by comprising the following steps of:
step 1, machining a gear hobbing machine to machine precise helical teeth: (1) fixing a mandrel tip, a mandrel tip sleeve and a blank to be processed: pre-fixing a mandrel tip on a processing main shaft of a gear hobbing machine by a chuck of the main shaft of the gear hobbing machine through a fastening screw, finely adjusting a jackscrew of the chuck, confirming that the mandrel tip jumps within 0.005 by using a dial indicator, screwing the fastening screw, fixing the mandrel tip on the chuck of the main shaft of the gear hobbing machine, fixing a hob on a cutter bar of the gear hobbing machine, sleeving the mandrel tip on a mandrel tip seat of the gear hobbing machine, and arranging a blank to be processed on the mandrel tip; (2) machining the precise helical teeth: after the parameters and the program of the gear hobbing machine tool are processed and set, a gear hobbing machine center seat drives a mandrel center sleeve and a mandrel center, a processing blank is clamped at a processing position, a workpiece center through hole and an end face are positioned and clamped, the size reference precision requirement of the miniature precision helical gear workpiece is completely met, and equipment is started to start processing;
step 2, tooth profile measurement: after the workpiece subjected to hobbing is subjected to processing procedures such as chamfering, deburring, cleaning and the like, tooth profile measurement is carried out, a measuring core rod of a tooth profile measuring instrument is fixed on a core rod deflector rod, then the measuring core rod and the core rod deflector rod are fixed on a main shaft tip of the tooth profile measuring instrument, a measured workpiece is directly installed on the measuring core rod, the measured workpiece is fixed by using the taper of the measuring core rod, the tooth profile measuring instrument is started, the main shaft tip of the tooth profile measuring instrument rotates to drive the core rod deflector rod, the measuring core and the measured workpiece to rotate together, and tooth profile measurement is completed;
step 3, gear meshing measurement: and (3) inserting the meshing standard gear on the designated rotating shaft of the gear meshing instrument, fixing the meshing measurement core rod on the designated detection platform of the meshing instrument, screwing the fixing screw, directly arranging the workpiece to be detected on the meshing measurement core rod, adjusting the position of the platform to enable the meshing standard gear to be in contact with and meshed with the workpiece to be detected, and starting the gear meshing instrument to start measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343004.9A CN111037006A (en) | 2019-12-24 | 2019-12-24 | Method for machining and measuring miniature precise helical gear by taking mandrel as machining reference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343004.9A CN111037006A (en) | 2019-12-24 | 2019-12-24 | Method for machining and measuring miniature precise helical gear by taking mandrel as machining reference |
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| Publication Number | Publication Date |
|---|---|
| CN111037006A true CN111037006A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911343004.9A Pending CN111037006A (en) | 2019-12-24 | 2019-12-24 | Method for machining and measuring miniature precise helical gear by taking mandrel as machining reference |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302018A (en) * | 2022-07-29 | 2022-11-08 | 中国第一汽车股份有限公司 | Machining method for gear hobbing of output shaft of gearbox |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102874A (en) * | 1985-04-01 | 1987-01-10 | 大连工学院 | The method of measuring profile accuracy for large gear whee/on site |
| CN102319930A (en) * | 2011-08-18 | 2012-01-18 | 浙江大学 | Fixture for machining spoke type web gears and usage thereof |
| EP2857133A1 (en) * | 2012-05-29 | 2015-04-08 | Beijing Buffalo Transmission Technology Co., Ltd. | Multi-use, large-module gear milling machine |
| CN104759704A (en) * | 2015-03-19 | 2015-07-08 | 高灵军 | Self-driving hobbing clamp |
| CN104907642A (en) * | 2014-03-14 | 2015-09-16 | 泰州市里华机械有限公司 | Gear shaving clamp |
| CN105241415A (en) * | 2015-11-13 | 2016-01-13 | 西安工业大学 | Measuring method of contact type involute worm tooth profile |
| CN207681647U (en) * | 2017-12-19 | 2018-08-03 | 东风格特拉克汽车变速箱有限公司 | A kind of hollow shaft type parts fixture |
| CN208116922U (en) * | 2018-03-27 | 2018-11-20 | 温岭市慧荣机械有限公司 | A kind of novel Fixture for Gear-shaving |
| CN110530632A (en) * | 2019-08-29 | 2019-12-03 | 南京沃瑞新能源科技有限公司 | A kind of automobile gear engagement measuring instrument |
-
2019
- 2019-12-24 CN CN201911343004.9A patent/CN111037006A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102874A (en) * | 1985-04-01 | 1987-01-10 | 大连工学院 | The method of measuring profile accuracy for large gear whee/on site |
| CN102319930A (en) * | 2011-08-18 | 2012-01-18 | 浙江大学 | Fixture for machining spoke type web gears and usage thereof |
| EP2857133A1 (en) * | 2012-05-29 | 2015-04-08 | Beijing Buffalo Transmission Technology Co., Ltd. | Multi-use, large-module gear milling machine |
| CN104907642A (en) * | 2014-03-14 | 2015-09-16 | 泰州市里华机械有限公司 | Gear shaving clamp |
| CN104759704A (en) * | 2015-03-19 | 2015-07-08 | 高灵军 | Self-driving hobbing clamp |
| CN105241415A (en) * | 2015-11-13 | 2016-01-13 | 西安工业大学 | Measuring method of contact type involute worm tooth profile |
| CN207681647U (en) * | 2017-12-19 | 2018-08-03 | 东风格特拉克汽车变速箱有限公司 | A kind of hollow shaft type parts fixture |
| CN208116922U (en) * | 2018-03-27 | 2018-11-20 | 温岭市慧荣机械有限公司 | A kind of novel Fixture for Gear-shaving |
| CN110530632A (en) * | 2019-08-29 | 2019-12-03 | 南京沃瑞新能源科技有限公司 | A kind of automobile gear engagement measuring instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302018A (en) * | 2022-07-29 | 2022-11-08 | 中国第一汽车股份有限公司 | Machining method for gear hobbing of output shaft of gearbox |
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Application publication date: 20200421 |
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| RJ01 | Rejection of invention patent application after publication |