CN102975087B - Hob grinder - Google Patents
Hob grinder Download PDFInfo
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- CN102975087B CN102975087B CN201210563150.4A CN201210563150A CN102975087B CN 102975087 B CN102975087 B CN 102975087B CN 201210563150 A CN201210563150 A CN 201210563150A CN 102975087 B CN102975087 B CN 102975087B
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- motor
- longitudinal
- encoder
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Abstract
The invention relates to a hob grinder which comprises a backing-off lathe. The backing-off lathe is provided with a transverse carriage capable of transversely moving and a longitudinal carriage capable of longitudinally moving; the transverse carriage controls transverse displacement of a grinding head of a grinding hob; the longitudinal carriage controls longitudinal displacement of the grinding head of the grinding hob; the backing-off lathe is also provided with a spindle for driving a workpiece to rotate; the spindle is connected with a spindle motor; the transverse carriage is connected with a transverse motor; the longitudinal carriage is connected with a longitudinal motor; the spindle is connected with an encoder used as a pulse generator; the encoder is connected with a singlechip by a signal line; the singlechip outputs a signal to drive the spindle motor to rotate at a uniform speed; the singlechip respectively calculates pulse numbers of the transverse motor and the longitudinal motor according to input signals of the encoder; and the singlechip is connected with the spindle motor by a spindle motor driving module, is connected with the transverse motor by a transverse motor driving module and is connected with the longitudinal motor by a longitudinal motor driving module.
Description
Technical field
The present invention relates to a kind of hob grinder.
Background technology
Hobboing cutter is the cutter for machining gears, turbine or other band tooth workpiece.Grinding machine head is installed additional usually to realize the grinding of hobboing cutter on relieving lathe in current hobboing cutter manufacturer.This relieving lathe comprises a spindle motor, this spindle motor drives main axis, main shaft then drives hobboing cutter to rotate, the motion of main shaft of relieving lathe and vertically moving of the transverse shifting of cross slide/longitudinal planker are the engaged transmission realized by gear transmission chain, transmission accuracy between main shaft and cross slide/longitudinal planker depends on this gear transmission chain precision, and actual conditions are required precisions that this precision can not meet hobboing cutter pitch.
Summary of the invention
In order to solve the problems referred to above that existing hobboing cutter organisation of working exists, the invention provides a kind of hob grinder that machining accuracy can be made to improve.
The present invention adopts following technical scheme:
Hob grinder, comprise relieving lathe, longitudinal planker relieving lathe being provided with transversely movable cross slide and can vertically moving, cross slide controls the lateral displacement of the bistrique of grinding hobboing cutter, longitudinal planker controls the length travel of the bistrique of grinding hobboing cutter, relieving lathe is also provided with the main shaft driving workpiece to rotate, this main shaft connects spindle motor, described cross slide connects cross motor, described longitudinal planker connects longitudinal motor, described main shaft connects the encoder as impulse generator, encoder connects single-chip microcomputer by holding wire, the uniform rotation of described single-chip microcomputer output signal drives spindle motor, single-chip microcomputer calculates driving cross motor respectively according to the input signal of encoder, the umber of pulse of longitudinal motor, single-chip microcomputer connects spindle motor by spindle motor driver module, cross motor is connected by cross motor driver module, longitudinal motor is connected by longitudinal motor drive module.
Further, described main shaft connects encoder by transmission mechanism, and this transmission mechanism is speed increasing mechanism.
Further, described transmission mechanism is synchronous belt drive mechanism, and this tape handler comprises the active synchronization belt wheel be connected with main shaft and the driven synchronous pulley be connected with encoder, and described active synchronization belt wheel is connected by toothed belt transmission with driven synchronous pulley.
Further, described cross slide slides on longitudinal planker, cross slide is equipped with described bistrique.
Further, in described single-chip microcomputer, be also provided with dump block, dump block be used for active synchronization belt wheel often revolve turn around after encoder pulse is reset.
Preferably, the speed increasing ratio of described synchronous belt drive mechanism is 1:4.
Preferably, described encoder be 2500 pulses/turn.
Preferably, described spindle motor, cross motor and longitudinal motor are servomotor.
Preferably, described cross slide connects cross motor by the first transmission mechanism, and this first transmission mechanism comprises the first nut be connected with cross motor, the first screw rod be connected with cross slide, and the first nut is connected with the first screw flight.
Preferably, described longitudinal planker connects longitudinal motor by the second transmission mechanism, and this second transmission mechanism comprises the second nut be connected with longitudinal motor, the second screw rod be connected with longitudinal planker, and the second nut is connected with the second screw flight.
Beneficial effect of the present invention is: single-chip microcomputer calculates the pulse of drives spindle motor uniform rotation, make main shaft uniform rotation, main shaft connects encoder by transmission mechanism, the output Puled input of encoder is in single-chip microcomputer, single-chip microcomputer calculates the umber of pulse driving cross motor, longitudinal motor, and then controls the rotational angle of cross motor, longitudinal motor.Compared to the prior art, except identical spindle motor, also set up cross motor and longitudinal motor, and controlled the rotational angle of spindle motor, cross motor and longitudinal motor by the mode of numerical control, and then control the movement of cross slide and longitudinal planker.Like this, be no longer the movement being controlled cross slide and longitudinal planker by the gear transmission chain that precision is low, the machining accuracy of hobboing cutter is improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the circuit theory diagrams of the embodiment of the present invention.
Drawing reference numeral: 1-relieving lathe; 2-cross slide; The longitudinal planker of 3-; 4-bistrique; 5-main shaft; 6-cross motor; The longitudinal motor of 7-; 8-encoder; 9-active synchronization belt wheel; The driven synchronous pulley of 10-.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1-2: hob grinder, comprise relieving lathe 1, the longitudinal planker 3 relieving lathe 1 being provided with transversely movable cross slide 2 and can vertically moving, described cross slide 2 slides on longitudinal planker 3, the bistrique 4 of grinding hobboing cutter cross slide 2 is equipped with, cross slide 2 controls the lateral displacement of bistrique 4, and longitudinal planker 3 controls the length travel of bistrique 4, relieving lathe 1 is also provided with the main shaft 5 driving workpiece to rotate, this main shaft 5 connects spindle motor and (is positioned at relieving lathe inside, not shown), described cross slide 2 connects cross motor 6, described longitudinal planker 3 connects longitudinal motor 7, described main shaft 5 connects the encoder 8 as impulse generator, encoder 8 connects single-chip microcomputer by holding wire, described single-chip microcomputer exports the uniform rotation of pulsed drive spindle motor, and then calculate driving cross motor 6 respectively according to the input signal of encoder 8, the umber of pulse of longitudinal motor 7, single-chip microcomputer connects spindle motor by spindle motor driver module, cross motor 6 is connected by cross motor driver module, longitudinal motor 7 is connected by longitudinal motor drive module.Spindle motor driver module, cross motor driver module and longitudinal motor drive module, export to single-chip microcomputer the effect that signal amplification is played in pulse.After signal amplifies, spindle motor, cross motor and longitudinal motor just can be made to feel the pulse rush in the rotation of the certain speed of row and angle.The rotational angle of cross motor is determined by umber of pulse, and the rotating speed of cross motor is determined by pulse frequency, and spindle motor, longitudinal motor are also similar.
Described main shaft 5 connects encoder 8 by transmission mechanism, and this transmission mechanism is speed increasing mechanism.Concrete, described transmission mechanism is synchronous belt drive mechanism, this synchronous belt drive mechanism comprises the active synchronization belt wheel 9 be connected with main shaft 5 and the driven synchronous pulley 10 be connected with encoder 8, and described active synchronization belt wheel 9 is connected by Timing Belt with driven synchronous pulley 10.In the present embodiment, the speed increasing ratio of described synchronous belt drive mechanism is 1:4, described encoder 8 be 2500 pulses/turn, active synchronization belt wheel 9 turns around, driven synchronous pulley 10 turn four circle, therefore, active synchronization belt wheel 9 often turns around, and encoder 8 produces 10000 pulses.Why connect encoder 8 by the mode of tape handler speedup, be because 2500 pulses on the market/encoder that turns is easy to buy, price is also cheap, and the encoder of and 10000 pulses/turn not easily has been bought, and expensive.And design active synchronization belt wheel and often turn around, encoder exports 10000 pulses, in order to precision is considered, the pitch supposed often to turn around active synchronization belt wheel (namely main shaft often turns around) advance is 5 millimeters, then precision is exactly 5 millimeters/10000 pulses, namely 0.5 μm/pulse, if main shaft often turns around, impulse generator only exports 2500 pulses, so its precision is 5 millimeters/2500 pulses, namely 2 μm/pulse, visible, and the precision of the impulse generator of 10000 pulses/turn is obviously high than the precision of impulse generator of 2500 pulses/turn.
In the present embodiment, in described single-chip microcomputer, be also provided with dump block, dump block be used for active synchronization belt wheel often revolve turn around after encoder pulse is reset.After active synchronization belt wheel 9 often turns around, encoder 8 exports the error having several pulse, if do not reset, encoder pulse constantly adds up, and error can be increasing, therefore in single-chip microcomputer, arranges dump block, active synchronization belt wheel often turns around, to encoder tanks once, like this, encoder also just only has the error of several pulse.
In the present embodiment, described cross slide 2 connects cross motor by the first transmission mechanism, this first transmission mechanism comprises the first nut be connected with cross motor 6, the first screw rod be connected with cross slide 2, first nut is connected with the first screw flight, with this, cross motor 6 controls cross slide 2 transverse shifting; Described longitudinal planker 3 connects longitudinal motor 7 by the second transmission mechanism, this second transmission mechanism comprises the second nut be connected with longitudinal motor 7, the second screw rod be connected with longitudinal planker 3, second nut is connected with the second screw flight, and with this, longitudinal motor 7 controls longitudinal planker 3 and vertically moves.In the present embodiment, described first nut, the second nut adopt ball nut, and described first screw rod, the second screw rod adopt ball screw.
In the present embodiment, described spindle motor, cross motor 6 and longitudinal motor 7 is servomotor.Described spindle motor, cross motor 6 and longitudinal motor 7 also can be stepper motors.
In the present embodiment, single-chip microcomputer exports pulsed drive spindle motor uniform rotation (i.e. main shaft 5 uniform rotation), main shaft 5 connects encoder 8 by synchronous belt drive mechanism, the output Puled input of encoder 8 is in single-chip microcomputer, single-chip microcomputer calculates the umber of pulse driving cross motor 6, longitudinal motor 7, and then controlling the rotational angle of cross motor 6, longitudinal motor 7, the pulse frequency that the rotating speed of cross motor 6 and longitudinal motor 7 is exported by single-chip microcomputer controls.Compared to the prior art, except identical spindle motor, also set up cross motor 6 and longitudinal motor 7, and controlled the rotational angle of spindle motor, cross motor 6 and longitudinal motor 7 by the mode of numerical control, and then control the movement of cross slide 2 and longitudinal planker 3.Like this, be no longer the movement being controlled cross slide 2 and longitudinal planker 3 by the gear transmission chain that precision is low, the machining accuracy of hobboing cutter is improved.
In addition, servomotor (spindle motor, cross motor 6, longitudinal motor 7) selected in system is the motor with brake apparatus, and single-chip microcomputer is braked spindle motor, cross motor 6, longitudinal motor 7 respectively by spindle motor driver module, cross motor driver module, longitudinal motor drive module.Before the object of braking is that machine for making gear teeth is shut down, the parameter of machine for making gear teeth recorded by single-chip microcomputer, and after machine for making gear teeth power-off, the position of spindle motor, cross motor and longitudinal motor remains unchanged.When machine for making gear teeth starts again, machine for making gear teeth can work on by the parameter of last registration, and saves machine for making gear teeth and start the work all needing clear point or tool setting at every turn.
Above-described embodiment is only enumerating of the technology of the present invention design way of realization; protection scope of the present invention is not limited only to above-described embodiment, and protection scope of the present invention may extend to those skilled in the art according to the thinkable equivalent technologies means of technical conceive of the present invention.
Claims (9)
1. hob grinder, comprise relieving lathe, longitudinal planker relieving lathe being provided with transversely movable cross slide and can vertically moving, cross slide controls the lateral displacement of the bistrique of grinding hobboing cutter, longitudinal planker controls the length travel of the bistrique of grinding hobboing cutter, relieving lathe is also provided with the main shaft driving workpiece to rotate, this main shaft connects spindle motor, it is characterized in that: described cross slide connects cross motor, described longitudinal planker connects longitudinal motor, described main shaft connects the encoder as impulse generator, encoder connects single-chip microcomputer by holding wire, the uniform rotation of described single-chip microcomputer output signal drives spindle motor, single-chip microcomputer calculates driving cross motor respectively according to the input signal of encoder, the umber of pulse of longitudinal motor, single-chip microcomputer connects spindle motor by spindle motor driver module, cross motor is connected by cross motor driver module, longitudinal motor is connected by longitudinal motor drive module, described main shaft connects encoder by transmission mechanism, and this transmission mechanism is speed increasing mechanism.
2. hob grinder as claimed in claim 1, it is characterized in that: described transmission mechanism is synchronous belt drive mechanism, this synchronous belt drive mechanism comprises the active synchronization belt wheel be connected with main shaft and the driven synchronous pulley be connected with encoder, and described active synchronization belt wheel is connected by toothed belt transmission with driven synchronous pulley.
3. the hob grinder as described in one of claim 1-2, is characterized in that: described cross slide slides on longitudinal planker, cross slide is equipped with described bistrique.
4. hob grinder as claimed in claim 3, is characterized in that: be also provided with dump block in described single-chip microcomputer, dump block be used for active synchronization belt wheel often revolve turn around after encoder pulse is reset.
5. hob grinder as claimed in claim 4, is characterized in that: the speed increasing ratio of described synchronous belt drive mechanism is 1:4.
6. hob grinder as claimed in claim 5, is characterized in that: described encoder is 2500 pulses/turn.
7. hob grinder as claimed in claim 5, is characterized in that: described spindle motor, cross motor and longitudinal motor are servomotor.
8. hob grinder as claimed in claim 1, it is characterized in that: described cross slide connects cross motor by the first transmission mechanism, this first transmission mechanism comprises the first nut be connected with cross motor, the first screw rod be connected with cross slide, and the first nut is connected with the first screw flight.
9. hob grinder as claimed in claim 8, it is characterized in that: described longitudinal planker connects longitudinal motor by the second transmission mechanism, this second transmission mechanism comprises the second nut be connected with longitudinal motor, the second screw rod be connected with longitudinal planker, and the second nut is connected with the second screw flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563150.4A CN102975087B (en) | 2012-12-21 | 2012-12-21 | Hob grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563150.4A CN102975087B (en) | 2012-12-21 | 2012-12-21 | Hob grinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102975087A CN102975087A (en) | 2013-03-20 |
| CN102975087B true CN102975087B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210563150.4A Expired - Fee Related CN102975087B (en) | 2012-12-21 | 2012-12-21 | Hob grinder |
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| Country | Link |
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| CN (1) | CN102975087B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286326A (en) * | 2013-06-04 | 2013-09-11 | 无锡泰诺工具有限公司 | High-speed numerically-controlled hob relieving lathe |
| CN103386638A (en) * | 2013-07-23 | 2013-11-13 | 安徽力成机械装备有限公司 | Numerical control spherical cage inner hole grinding machine |
| CN107520503A (en) * | 2017-09-29 | 2017-12-29 | 大连佳诚日田科技发展有限公司 | A kind of sawing running gear |
| CN108856307A (en) * | 2018-05-23 | 2018-11-23 | 山信软件股份有限公司 | A kind of mechanical equipment position detecting device and detection method |
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| JP2002127006A (en) * | 2000-10-24 | 2002-05-08 | Okamoto Machine Tool Works Ltd | Surface grinding method for work |
| JP3467807B2 (en) * | 1993-09-30 | 2003-11-17 | 豊田工機株式会社 | Grinding equipment |
| CN100387397C (en) * | 2005-02-01 | 2008-05-14 | 朱志刚 | Control method and device for crystal ball grinding / polishing machine |
| CN100402233C (en) * | 2004-09-20 | 2008-07-16 | 沈阳建筑大学 | High speed precision digital control grinding processing device based on PMAC |
| EP1854585B1 (en) * | 2006-05-12 | 2008-09-10 | Satisloh GmbH | Apparatus and method for generating an optical surface on a workpiece, for example an ophthalmic lens |
| CN201998030U (en) * | 2010-12-30 | 2011-10-05 | 广东科达机电股份有限公司 | Motor synchronous control device for polishing machine crossbeam swing |
| CN202420423U (en) * | 2011-12-14 | 2012-09-05 | 东莞市国旋机械设备有限公司 | Precise electronic linear displacement ruler |
| CN202964301U (en) * | 2012-12-21 | 2013-06-05 | 李绣峰 | Hob grinding machine |
-
2012
- 2012-12-21 CN CN201210563150.4A patent/CN102975087B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3467807B2 (en) * | 1993-09-30 | 2003-11-17 | 豊田工機株式会社 | Grinding equipment |
| JP2002127006A (en) * | 2000-10-24 | 2002-05-08 | Okamoto Machine Tool Works Ltd | Surface grinding method for work |
| CN100402233C (en) * | 2004-09-20 | 2008-07-16 | 沈阳建筑大学 | High speed precision digital control grinding processing device based on PMAC |
| CN100387397C (en) * | 2005-02-01 | 2008-05-14 | 朱志刚 | Control method and device for crystal ball grinding / polishing machine |
| EP1854585B1 (en) * | 2006-05-12 | 2008-09-10 | Satisloh GmbH | Apparatus and method for generating an optical surface on a workpiece, for example an ophthalmic lens |
| CN201998030U (en) * | 2010-12-30 | 2011-10-05 | 广东科达机电股份有限公司 | Motor synchronous control device for polishing machine crossbeam swing |
| CN202420423U (en) * | 2011-12-14 | 2012-09-05 | 东莞市国旋机械设备有限公司 | Precise electronic linear displacement ruler |
| CN202964301U (en) * | 2012-12-21 | 2013-06-05 | 李绣峰 | Hob grinding machine |
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| CN102975087A (en) | 2013-03-20 |
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Granted publication date: 20150415 Termination date: 20161221 |