CN102672282B - Grinding wheel spindle box for numerical control spiral bevel gear grinding machine - Google Patents
Grinding wheel spindle box for numerical control spiral bevel gear grinding machine Download PDFInfo
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- CN102672282B CN102672282B CN201210185873.5A CN201210185873A CN102672282B CN 102672282 B CN102672282 B CN 102672282B CN 201210185873 A CN201210185873 A CN 201210185873A CN 102672282 B CN102672282 B CN 102672282B
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- wheel spindle
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- spindle
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- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 229910001651 emery Inorganic materials 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
- 229910001573 adamantine Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a grinding wheel spindle box for a numerical control spiral bevel gear grinding machine, which is characterized by comprising a grinding wheel spindle, an eccentric spindle, a spindle motor and a hydraulic locking device, wherein the hydraulic locking device is fixed at the upper end of a grinding wheel spindle box body; the spindle motor is connected with a first transmission shaft; a transmission gear is fixed on the first transmission shaft; the transmission gear is meshed with a second gear; the grinding wheel spindle is arranged in an inner hole of the eccentric spindle; a servo motor is connected with a second transmission shaft; a third gear is arranged on the second transmission shaft; the third gear is meshed with a first gear; the eccentric spindle is arranged in an inner hole of a shaft sleeve; an online dynamic balance device is arranged in an inner hole of the grinding wheel spindle; and a grinding wheel is arranged at the front end of the grinding wheel spindle by a flange plate. The grinding wheel spindle box has the advantages that due to the adoption of a double-shaft structure, grinding fluid can enter a grinding region to take cooling and grinding effects on the surface of the grinding wheel and a ground gear; the eccentricity of the grinding wheel spindle is automatically regulated by the online dynamic balance device; the processing accuracy and efficiency are improved; and the service life of a machine tool is prolonged.
Description
Technical field
The invention belongs to hypoid generating machine technical field, particularly relate to a kind of numerical control helical bevel gear gear grinding machines grinding wheel spindle box.
Background technology
Numerical control tooth grinder for spiral bevel gear at a high speed, grinding spiral bevel gear accurately, its objective is the heat treated distortion of profile shifted gear, improve tooth accuracy and fineness, reach stable drive, reduce noise and propose high-precision requirement.Emery wheel is the essential tool of gear grinding machines, in order to guarantee accurate size and the smooth finish surface after gear grinding, must prevent the vibration of emery wheel in grinding process.Because grinding wheel structure is that a large amount of particles by skewness form, the inborn imbalance of emery wheel cannot be avoided causing certain eccentric vibrating, and the degree of eccentricity that emery wheel is installed, the uneven thickness of emery wheel, the imbalance of main shaft and emery wheel are to the absorption of cooling fluid etc., the larger vibration of meeting, these vibrations not only can have influence on the crudy of gear grinding machines, also can shorten main shaft life-span and the wheel life of gear grinding machines, increase emery wheel correction number of times and repair adamantine consumption etc.In addition, the balanced adjustment of emery wheel is to adjust emery wheel adjustment block by balancing stand, is generally to carry out when changing new emery wheel, and just can not adjusts emery wheel dynamically lower.
Summary of the invention
The present invention improves machining accuracy and efficiency for the technical problem existing in solution known technology provides a kind of, is convenient to adjust and can extend the lathe numerical control helical bevel gear gear grinding machines grinding wheel spindle box in service life.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is:
Numerical control helical bevel gear gear grinding machines grinding wheel spindle box, grinding wheel spindle box comprises: grinding wheel spindle, eccentric main axis, spindle motor and hydraulic locking apparatus, described hydraulic locking apparatus is fixed on grinding wheel spindle casing upper end; Described spindle motor is connected with the first power transmission shaft by the first shaft coupling, fixed conveyor gear on the first power transmission shaft, and travelling gear and the 3rd gear engagement being arranged on grinding wheel spindle, grinding wheel spindle is by bearings and pack in the endoporus of eccentric main axis; Servomotor is connected with second driving shaft by the second shaft coupling, the second gear is installed on second driving shaft, the second gear is meshed with the first gear being arranged on eccentric main axis, described eccentric main axis is by bearings and pack in the endoporus of axle sleeve, and described axle sleeve is arranged on grinding wheel spindle casing; On-line dynamic balancing device is housed in the endoporus of grinding wheel spindle, and grinding wheel spindle front end is provided with emery wheel by ring flange;
Described on-line dynamic balancing device comprises: built-in type balancing head, emitting head, controller, sonar monitoring system, vibrating sensor and balanced cable, described built-in type balancing head is arranged in grinding wheel spindle endoporus, described emitting head is fixed on grinding wheel spindle rear end, and described controller and sonar monitoring system are all arranged in electrical control cubicles.
Between described emitting head and vibrating sensor, be provided with the gap of 3mm.
Advantage and good effect that the present invention has are: because invention adopts technique scheme, be that grinding wheel spindle box adopts grinding wheel spindle and eccentric main axis cross-compound arrangement, in grinding wheel spindle box, be provided with on-line dynamic balancing device, grinding wheel spindle is packed in eccentric main axis endoporus, making grinding wheel spindle in rotation, also can follow eccentric main axis revolves round the sun together, produce an eccentric motion, make the inside and outside conical surface of emery wheel replace intermittent grinding driven pulley concave surface and convex surface.The advantage of this kind of structure is to make grinding fluid enter grinding area, to wheel face with by roll flute wheel, plays cooling and ablation.In addition, intermittent grinding has reduced the contact area of emery wheel work, is conducive to prevent smear metal obstruction wheel face micropore, reduces grinding temperature; When the degree of eccentricity of grinding wheel spindle reaches a certain amount of, by on-line dynamic balancing device, automatically regulate the degree of eccentricity of grinding wheel spindle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is on-line dynamic balancing apparatus structure schematic diagram of the present invention.
In figure: 1, spindle motor; 2, the first shaft coupling; 3, the first power transmission shaft; 4, clutch shaft bearing; 5, travelling gear; 6, hydraulic cylinder; 7, piston; 8, grinding wheel spindle casing; 9, the second bearing; 10, axle sleeve; 11, the first ring flange; 12, the second ring flange; 13, end cap; 14, on-line dynamic balancing device; 14-1, built-in type balancing head; 14-2, emitting head; 14-3, controller; 14-4, sonar detection system; 14-5, vibrating sensor; 14-6, balanced cable; 15, eccentric main axis; 16, grinding wheel spindle; 17, the 3rd bearing; 18, three-flange dish; 19, the first gear; 20, the 3rd gear; 21, the second gear; 22, second driving shaft; 23, the second shaft coupling; 24, servomotor; 25, adjusting pad.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, numerical control helical bevel gear gear grinding machines grinding wheel spindle box, grinding wheel spindle box comprises: grinding wheel spindle 16, eccentric main axis 15, spindle motor 1 and hydraulic locking apparatus, hydraulic locking apparatus is fixed on grinding wheel spindle casing 8 upper ends, and described hydraulic locking apparatus comprises hydraulic cylinder 6 and piston 7.Described spindle motor 1 is connected with the first power transmission shaft 3 by the first shaft coupling 2, and fixing by clutch shaft bearing 4, fixed conveyor gear 5 on the first power transmission shaft, travelling gear and the 3rd gear 20 engagements that are arranged on grinding wheel spindle, grinding wheel spindle is supported and is packed in the endoporus of eccentric main axis by the second bearing 9.Servomotor 24 is connected with second driving shaft 22 by the second shaft coupling 23, the second gear 21, the second gears is installed on second driving shaft and is meshed with the first gear 19 being arranged on eccentric main axis 15, and the first gear is fixed on three-flange dish 18.Described eccentric main axis supports by the 3rd bearing 17 and packs in the endoporus of axle sleeve 10, and described axle sleeve 10 is arranged on grinding wheel spindle casing; Grinding wheel spindle front end is provided with emery wheel by ring flange.Grinding wheel spindle front end is equipped with the first ring flange 11 and the second ring flange 12 fixing by end cap 13 successively, and described the first ring flange and the second ring flange adopt maze-type structure, to prevent that impurity from entering.On-line dynamic balancing device 14 is housed in the endoporus of grinding wheel spindle, described on-line dynamic balancing device comprises: built-in type balancing head 14-1, emitting head 14-2, controller 14-3, sonar detection system 14-4, vibrating sensor 14-5 and balanced cable 14-6, described built-in type balancing head is arranged in the endoporus of grinding wheel spindle front end, described emitting head is fixed on grinding wheel spindle rear end, vibrating sensor is fixed on case lid, between described emitting head and vibrating sensor, be provided with the gap of 3mm, described controller, sonar detection system are all arranged in electrical control cubicles.
The operation principle of on-line dynamic balancing device is:
When emery wheel rotates and add in cooling fluid absorption situation, by vibrating sensor, 14-5 records vibratory output, by controller 14-3, press speed of grinding wheel spindle filtering, control two balancing weights in built-in type balancing head, quick and precisely mobile two balancing weights compensate unbalanced tram, and then fast reducing vibration.Built-in type balancing head adopts " upper and lower mass block structure ", and two semicircle masses are concentric, but different radii, Different Weight, reaches the object of balance by changing the circumferential position of two semicircle masses.Vibrating sensor is the indispensable part of on-line dynamic balancing device, the vibration amplitude monitoring according to it, and the motor driven equilibrium piece that controller is controlled built-in type balancing head by special algorithm moves to reach balance in orbit.Sonar (ultrasonic) signal (being conventionally called for short AE monitoring system), rely on its special-purpose Sonar Signal energy technologies, to originating from ultra-high frequency signal when process medium plain emery wheel contacts with diamond trimming wheel the grinding of workpiece, monitor, can be easy, saving time arranges AE monitoring system, reached to control to optimize grinding process object.
Grinding wheel spindle front end is provided with emery wheel by ring flange.Described grinding wheel spindle is driven by spindle motor, and eccentric main axis, by driven by servomotor, is equipped with hydraulic locking apparatus on grinding wheel spindle box.When not needing eccentric motion, by hydraulic cylinder and the piston of hydraulic locking apparatus, eccentric shaft is locked.
Because grinding wheel spindle box adopts grinding wheel spindle and eccentric main axis cross-compound arrangement, in spindle motor driven gear transmission process, gear also can produce eccentric motion.The pressure angle of standard is 20 ° at present, and when velocity ratio is higher, the high-speed motion of gear is again with bias, and the noise ratio that can produce is larger, so the spindle drive of this mechanism has adopted the pressure angle gear of 14.5 °.
Claims (2)
1. a numerical control helical bevel gear gear grinding machines grinding wheel spindle box, is characterized in that: grinding wheel spindle box comprises: grinding wheel spindle, eccentric main axis, spindle motor and hydraulic locking apparatus, and described hydraulic locking apparatus is fixed on grinding wheel spindle casing upper end; Described spindle motor is connected with the first power transmission shaft by the first shaft coupling, fixed conveyor gear on the first power transmission shaft, and travelling gear and the 3rd gear engagement being arranged on grinding wheel spindle, grinding wheel spindle is by bearings and pack in the endoporus of eccentric main axis; Servomotor is connected with second driving shaft by the second shaft coupling, the second gear is installed on second driving shaft, the second gear is meshed with the first gear being arranged on eccentric main axis, described eccentric main axis is by bearings and pack in the endoporus of axle sleeve, and described axle sleeve is arranged on grinding wheel spindle casing; On-line dynamic balancing device is housed in the endoporus of grinding wheel spindle, and grinding wheel spindle front end is provided with emery wheel by ring flange;
Described on-line dynamic balancing device comprises: built-in type balancing head, emitting head, controller, sonar surveillance system, vibrating sensor and balanced cable, described built-in type balancing head is arranged in grinding wheel spindle endoporus, described emitting head is fixed on grinding wheel spindle rear end, and described controller and sonar monitoring system are all arranged in electrical control cubicles.
2. numerical control helical bevel gear gear grinding machines grinding wheel spindle box according to claim 1, is characterized in that: the gap that is provided with 3mm between described emitting head and vibrating sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210185873.5A CN102672282B (en) | 2012-06-07 | 2012-06-07 | Grinding wheel spindle box for numerical control spiral bevel gear grinding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210185873.5A CN102672282B (en) | 2012-06-07 | 2012-06-07 | Grinding wheel spindle box for numerical control spiral bevel gear grinding machine |
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| Publication Number | Publication Date |
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| CN102672282A CN102672282A (en) | 2012-09-19 |
| CN102672282B true CN102672282B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210185873.5A Active CN102672282B (en) | 2012-06-07 | 2012-06-07 | Grinding wheel spindle box for numerical control spiral bevel gear grinding machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103084670A (en) * | 2013-02-05 | 2013-05-08 | 长沙哈量凯帅精密机械有限公司 | Machine tool for machining large gear in spiral bevel gear pair |
| DE102015012818A1 (en) * | 2015-10-05 | 2017-04-06 | Liebherr-Verzahntechnik Gmbh | Processing head with balancing device |
| CN113953902B (en) * | 2021-11-25 | 2024-04-02 | 江苏特贝尔精密机械科技有限公司 | High-precision cylindrical grinding machine with compact structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201471017U (en) * | 2009-08-13 | 2010-05-19 | 天津第一机床总厂 | Eccentric main shaft mechanism of gear grinding machine of numerical control spiral bevel gear |
| CN201645321U (en) * | 2010-04-07 | 2010-11-24 | 长春工业大学 | Grinding wheel dynamic-balance test control device |
| CN202622078U (en) * | 2012-06-07 | 2012-12-26 | 天津第一机床总厂 | Numerical control grinding wheel spindle box of spiral bevel gear grinding machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08267153A (en) * | 1995-03-28 | 1996-10-15 | Hitachi Metals Ltd | Mechanism for adjusting balance of rotation |
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2012
- 2012-06-07 CN CN201210185873.5A patent/CN102672282B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201471017U (en) * | 2009-08-13 | 2010-05-19 | 天津第一机床总厂 | Eccentric main shaft mechanism of gear grinding machine of numerical control spiral bevel gear |
| CN201645321U (en) * | 2010-04-07 | 2010-11-24 | 长春工业大学 | Grinding wheel dynamic-balance test control device |
| CN202622078U (en) * | 2012-06-07 | 2012-12-26 | 天津第一机床总厂 | Numerical control grinding wheel spindle box of spiral bevel gear grinding machine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-267153A 1996.10.15 |
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| CN102672282A (en) | 2012-09-19 |
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Effective date of registration: 20200323 Address after: 300385 No.11, Zhuyuan Road, Dasi high tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin Patentee after: Tianjin First Machine Tool Co.,Ltd. Address before: 300180, No. 146 Jintang Road, Hedong District, Tianjin Patentee before: TIANJIN NO.1 MACHINE TOOL WORKS |
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Address after: No. 11, Chuyuan Road, Dasi Hi tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin, 300385 Patentee after: General Technology Group Tianjin First Machine Tool Co.,Ltd. Country or region after: China Address before: No. 11, Chuyuan Road, Dasi Hi tech Industrial Park, Xiqing Economic Development Zone, Xiqing District, Tianjin, 300385 Patentee before: Tianjin First Machine Tool Co.,Ltd. Country or region before: China |
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