CN106238833B - Large travel high-speed electric threading machine - Google Patents
Large travel high-speed electric threading machine Download PDFInfo
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- CN106238833B CN106238833B CN201610775565.6A CN201610775565A CN106238833B CN 106238833 B CN106238833 B CN 106238833B CN 201610775565 A CN201610775565 A CN 201610775565A CN 106238833 B CN106238833 B CN 106238833B
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- tapping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G3/00—Arrangements or accessories for enabling machine tools not specially designed only for thread cutting to be used for this purpose, e.g. arrangements for reversing the working spindle
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- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
A kind of large travel high-speed electric threading machine, clutch transmission case is set between the feed head and motor of headstock, one clutch shaft and a transmission shaft erect setting in the case side by side, it is connected with motor by belt wheel transmission in clutch shaft, two electromagnetic clutch are respectively arranged on the upper and lower end of clutch shaft, and the first transfer belt wheel, the commutation driving gear being slidably matched in clutch shaft are connect with the armature of two electromagnetic clutch respectively；It is fixed with the second transfer belt wheel on transmission shaft and engages commutation driven gear with commutation driving gear, headstock head end supports an inner spline housing, two driven pulleys on inner spline housing to be connected respectively with the first, second transfer belt wheel by transmission belt；The main shaft epimere for being fed head is spline segment and inner spline housing spline fitted, and hypomere is that cylindrical section is slidably matched with the positioning of stroke quill, and stroke sleeve outer wall setting rack is engaged with a gear shaft, and the switch shift fork of gear shaft installation is corresponding with travel switch.
Description
Technical field
The present invention relates to tapping machine field, more particularly to a kind of large travel high-speed electric threading machine.
Background technology
Currently, the forward or reverse of the main shaft of common electric threading machine, typically uses reversing motor, passes through exchange
Positive and negative transfer of contactor or two-direction switch control reversing motor realizes main shaft rotation, achievees the purpose that tapping or moves back silk, by
In reversing motor can exist in the commutation process of forward and backward transient current increase, commutation inertial oscillation it is big, once motor
Rotating speed is fast, will burning electric motor, therefore usually not more than 300 revs/min of the tapping rotating speed of this electric threading machine, work
It is less efficient, generally it is only suitable for smallclothes processing；And when carrying out aperture tapping, due to vibrating, being also easy to stall causes screw tap greatly
Fracture, causes workpiece to be scrapped, therefore the stroke of tapping is short, and usual stroke is in 50mm or so.
In addition also there is the setting on master spindle for tapping machine to rotate forward friction cone pulley group and reverse friction cone pulley group, rotate forward friction cone pulley
Group and reverse friction cone pulley group direction of rotation drive the transmission belt of a distortion transmission to realize by same motor, the rotation of motor wheel
Turn that direction is constant always, the shift fork by being connected on main shaft and the tension spring control for being fed crank rod assembly rotate forward friction cone pulley group
Or the inside and outside cone pulley of friction cone pulley group is reversed to combine or detach, realize the tapping machine of rotating forward or the reverse of main shaft.When work, turn
Dynamic feeding crank rod assembly, drives shift fork that main shaft is made to make feed motion downwards, when screw tap resists workpiece, tapping axial force F pushes away
Dynamic main shaft makes the inside and outside cone pulley of reversion disengage and rotate forward inside and outside cone pulley engagement, the change of main shaft direction of rotation is completed, to reach
Tapping Function on General.At the end of tapping, crank is decontroled, under the action of tension spring, empty set is in the rotating forward on main shaft in cone pulley and reversion
Cone pulley moves up and main shaft is hung in by screw tap on workpiece, is as a result exactly to rotate forward inside and outside cone pulley to disengage and invert inside and outside cone pulley engagement,
Main shaft backwards rotation completes tool backlash movement.It is this to realize that forward and backward reaches the tapping machine of tapping purpose using friction cone pulley group.And
The parts of the main shaft portion of this type tapping machine are more, complicated, also the opposite stabilization for leading to shaft motion and it is smooth by
It is influenced to certain.The disadvantage is that the precision of tapping is not high, effect is slow, and stroke is short, and tapping stroke generally only has 50mm, usually only
It is suitble in one plane wire hole processing.
Tap deep holes due to threaded hole especially hole depth more than 50mm are processed, tapping stroke is big and screwing speed it is fast between
In the presence of long-term unsolved contradiction, how to realize that large travel high-speed tapping is processed, is always to be difficult to solve in tapping machine field
The problem of.
Invention content
The purpose of the present invention is being directed to difference of the existing technology, a kind of large travel high-speed electric threading machine is provided.It
Clutch transmission case is set between motor and feed head, setting clutch shaft and transmission are erect side by side in clutch transmission case
Electromagnetic clutch is respectively set in clutch shaft upper and lower side in axis, by motor keep a direction high speed rotation drive from
Clutch shaft rotates, and replaces passing power by two electromagnetic clutch under control, respectively through respective drive path control machine
The positive and negative rotation direction of head main shaft, and the stroke sleeve being slidably matched is positioned in main shaft by axis on the main shaft cylindrical section of feed head
While feed, band movable gear shaft rotates, and the control handle by being installed on steerage gear axis and switch fork controls stroke are opened
It closes, thus controls two electromagnetic clutch power on/off, head spindle realization is made to rotate in the forward direction or reversely rotate, complete tapping or move back
Silk realizes the big stroke tapping under high speed rotation.
The object of the present invention is achieved like this：A kind of large travel high-speed electric threading machine, including with column and work
The engine base of platform, installs headstock, the headstock head end installation feed head on column, and tail end installs motor, motor with
It is fed that clutch transmission case is arranged between head, one clutch shaft of setting and a transmission shaft, institute is erect side by side in clutch transmission case
It states circumferential fixed driven total belt wheel in clutch shaft by total transmission belt to be connected with the output pulley that motor is installed, two
Electromagnetic clutch is arranged in clutch transmission case, and is located at the upper and lower end of clutch shaft, two electromagnetic clutch it is dynamic
Disk is with the circumferentially fixed connection of clutch shaft, and the equal empty set of armature of two electromagnetic clutch is in clutch shaft, wherein first
The armature of electromagnetic clutch is fixedly connected with the first transfer belt wheel being slidably matched in clutch shaft, the second electromagnetic clutch
Armature is fixedly connected with the commutation driving gear being slidably matched in clutch shaft, on the transmission shaft circumferentially be fixed with commutation from
Moving gear and the second transfer belt wheel, the commutation driven gear are engaged with commutation driving gear；The headstock head end passes through bearing
An inner spline housing is supported, circumferentially fixed first, second driven pulley on the inner spline housing, the first driven pulley passes through the first transmission
Band is connected with the first transfer belt wheel, and the second driven pulley is connected by the second transmission belt with the second transfer belt wheel；One feed head
Main shaft epimere be set as spline segment, the length of the spline segment is more than tapping and is fed distance, the spline segment and inner spline housing spline
Cooperation, main shaft hypomere are set as cylindrical section, and axis positions the one stroke sleeve that is slidably matched, stroke sleeve outer wall edge on the cylindrical section
Axial setting rack, the length of the rack are more than tapping and are fed distance, which nibbles with the gear shaft for being supported in headstock
It closes, control handle and switch shift fork is installed on the gear shaft, what is be arranged on the switch shift fork and headstock is used to control two
The travel switch of electromagnetic clutch power on/off corresponds to, the conversion for touching travel switch control tapping, moving back silk.
The upper and lower ends of the stroke sleeve are respectively equipped with bearing locating slot, and stroke sleeve is positioned by being mounted on two bearings
The cylindrical section of bearing and head spindle in slot is slidably matched, and will by installing upper and lower spring collar respectively on cylindrical section
The bearing axis of stroke sleeve upper and lower ends is located between upper and lower spring collar, forms head spindle cylindrical section and stroke sleeve
Axis positioning be slidably matched.
Stroke sleeve upper surface to the displacement stroke distance there are stroke sleeve between inner spline housing lower face, position
Shifting stroke distances are 180~200mm, and headstock lower end is equipped with limited block.
Head spindle cylindrical section lower end is equipped with the mohs tapered bore for installing tap chuck, and tap chuck uses band not
The quick chuck of family name's taper.
The head spindle is multi-diameter shaft, and the diameter of head spindle spline segment is less than the diameter of cylindrical section, the length of spline segment
Axial length of the degree more than inner spline housing.
The tapping rotating speed of the head spindle is not less than 700 revs/min, moves back a rotating speed and is not less than 800 revs/min.
The switch shift fork is fan-shaped or round shift fork, which is circumferentially located on gear shaft, by manipulating hand
Handle pull switch shift fork is contacted with travel switch.
The headstock head end is equipped with bearing block, and the bearing block is matched by upper bearing (metal) and lower bearing with inner spline housing sliding
It closes.
The first transfer belt wheel, commutation driving gear are slidably matched by bearing and clutch shaft respectively.
The workbench is cross slid platform.
Using the above scheme the advantages of, is as follows：
1. clutch transmission case is arranged between motor and feed head, one clutch of setting is erect side by side in clutch transmission case
Device shaft and a transmission shaft, circumferential fixed driven total belt wheel passes through total transmission belt and is installed with motor in the clutch shaft
Output pulley be connected, two electromagnetic clutch are arranged in clutch transmission case, and be located at the upper and lower of clutch shaft
End, with the circumferentially fixed connection of clutch shaft, the equal empty set of armature of two electromagnetic clutch exists for the Moving plates of two electromagnetic clutch
In clutch shaft, wherein the first transfer belt wheel being slidably matched on the armature of the first electromagnetic clutch and clutch shaft is solid
Fixed connection, the armature of the second electromagnetic clutch are fixedly connected with the commutation driving gear being slidably matched in clutch shaft.It is described
Commutation driven gear and the second transfer belt wheel are circumferentially fixed on transmission shaft, which nibbles with commutation driving gear
It closes, the headstock head end is by one inner spline housing of bearing support, circumferentially fixed first, second driven belt on the inner spline housing
Wheel, the first driven pulley is connected by the first transmission belt with the first transfer belt wheel, the second driven pulley by the second transmission belt and
Second transfer belt wheel is connected.High-speed rotating motor power can be passed through the combination of two electromagnetic clutch by this structure
Or separation realizes that power is alternately transmitted or interrupted, by power by the first transfer belt wheel, through the first transmission belt, the first driven pulley
Inner spline housing rotation is driven, or by power by the driving gear that commutates, through driven gear, transmission shaft, the second transfer band of commutating
Wheel, the second transmission belt, the second driven pulley drive inner spline housing rotation, realize the power of a single direction rotation motor output,
The structure for coaxially alternately transmitting power respectively through two electromagnetic clutch in a clutch shaft, and by the first transfer band
It takes turns the first driven pulley driven and moves back a rotary power to inner spline housing transmission, the driven through transmission shaft by commutation driving gear
Two driven pulleys transmit tapping rotary power to inner spline housing, realize commutation rotation, and the layout of power drive mechanism is simple, moves
Power, which is transmitted, to be stablized, and the motor for solving the prior art needs forward direction, is reversely alternately rotated and motor is caused to be easily damaged, rotating speed
The problems such as slow, makes motor remain that a rotation direction high-speed motion, the rotating speed of tapping are improved, and thus improves work effect
Rate.Meanwhile also solving the prior art and rotating forward friction cone pulley group is set on master spindle for tapping machine and reverses friction cone pulley group, by same
One motor realizes this type tapping machine of forward and reverse rotation, existing main shaft portion by the transmission belt of a distortion transmission
Parts it is more, complicated, the stability and smoothness of shaft motion are poor and effect is slow, and stroke is short etc. is difficult to solve
The problem of, make tapping stroke that can be far longer than common 50mm or so, realizes the large travel high-speed tapping processing of aperture, deep hole.
2. the main shaft epimere of the feed head is set as spline segment, the length of the spline segment is more than tapping and is fed distance, institute
Spline segment and inner spline housing spline fitted are stated, main shaft hypomere is set as cylindrical section, and axis positions the one stroke that is slidably matched on the cylindrical section
Sleeve, the axially disposed rack of stroke sleeve outer wall, the length of the rack are more than tapping and are fed distance, the rack and branch
The gear shaft engagement in headstock is supportted, control handle and switch shift fork, the switch shift fork and machine are installed on the gear shaft
The travel switch for controlling two electromagnetic clutch power on/off being arranged on headstock corresponds to, and is attacked for touching travel switch control
Silk, the conversion for moving back silk.Using this structure, main shaft is enable to realize tapping rotation feed under the drive of inner spline housing or move back silk
Rotation is oriented in the main shaft course of work due to only being constrained by same inner spline housing, can be always under large travel high-speed rotation
Concentricity is kept, retreats and stablizes, greatly improve tapping precision.Moreover, because the effect of stroke sleeve upper rack, gives in main shaft
Into being synchronously rotated in the process by rack drives gear shaft, after causing stroke to cover, can be made open by operating control handle
It closes shift fork and touches the power on/off conversion that travel switch controls two electromagnetic clutch, to complete to attack the conversion between moving back silk, operation
Simply, and main shaft offset vibration will not be led to, machining accuracy is made to be guaranteed.
The machining accuracy of this large travel high-speed electric threading machine can reach 0.008mm, and tapping rotating speed is up to 745 revs/min
Clock moves back a rotating speed up to 868 revs/min, and for tapping stroke distances up to 180~200mm, working efficiency, which can reach, attacks a depth
Degree, which is the threaded hole of 100mm or so, only to be needed 1.5 seconds, is greatly improved processing efficiency, is reduced production cost.
It is described further with reference to embodiments with attached drawing.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the feed head sectional structure chart of the present invention；
Fig. 3 is the A direction views of Fig. 2.
Specific implementation mode
Referring to Fig. 1 to Fig. 3, a kind of embodiment of large travel high-speed electric threading machine, the large travel high-speed electric threading machine
Include the engine base with column and workbench, headstock 4 is installed on the column 24 of engine base, which is mounted in crossbeam shape
On column 24, fixed mode may be used on column 24 in headstock 4, controllable up-down mode can also be used to pacify
On column 24, controllable up-down mode is using the conventional Standard for realizing elevating movement of lathe, in this way
The working depth adjustment for the Z coordinate direction of different workpieces may be implemented.The workbench（It is not shown）It may be configured as ten
Word slide unit enables processed workpiece to realize that coordinate X, the quick of Y-direction accurately are moved horizontally by cross slid platform, is convenient for pair
Porous workpiece carries out wire hole tapping successively.The head end installation feed head of the headstock 4, tail end installs motor 19, electronic
Clutch transmission case 23 is set between machine 19 and feed head, one clutch shaft of setting is erect side by side in the clutch transmission case 23
14 and a transmission shaft 12.The clutch shaft 14, transmission shaft 12 are slidably matched by bearing and clutch transmission case 23 respectively, from
18 phase of output pulley that circumferential fixed driven total belt wheel 16 is installed by total transmission belt 17 with motor 19 in clutch shaft 14
Even, driven total belt wheel 16 is circumferentially fixed in 14 stage casing of clutch shaft by modes such as key, pin or interference fits.Two electromagnetism
Clutch is arranged in clutch transmission case 23, and is located at the upper and lower end of clutch shaft 14, the magnetic of two electromagnetic clutch
Yoke assembly is fixed on clutch transmission case, can be by being bolted directly on clutch transmission box body, also can be solid by bolt
It is scheduled on the bearing being arranged in clutch transmission case.The Moving plate of described two electromagnetic clutch with the circumferentially fixed company of clutch shaft
It connects, singly-bound or spline can be used in circular fixation mode；The equal empty set of armature of two electromagnetic clutch is in clutch shaft 14
On, wherein the first transfer belt wheel 15 being slidably matched on the armature of the first electromagnetic clutch 13 and clutch shaft 14 passes through spiral shell
Nail is fixedly connected, and the armature of the second electromagnetic clutch 21 passes through with the commutation driving gear 20 being slidably matched in clutch shaft 14
Screw is fixedly connected, and the first transfer belt wheel 15, commutation driving gear 20 can pass through the axis hole of itself and clutch respectively
Shaft 14 is slidably matched, and can also be slidably matched by bearing and clutch shaft 14, the first transfer belt wheel 15, commutation master
Moving gear 20 is slidably matched by bearing with clutch shaft 14 better respectively.It is circumferentially fixed on the transmission shaft 12
Commutate driven gear 22 and the second transfer belt wheel 11, and commutation driven gear 22 and the second transfer belt wheel 11 pass through singly-bound or flower respectively
Key and transmission shaft 12 are circumferentially fixed, and interference fit can also be used and be fixed on transmission shaft.The commutation driven gear 22 and commutation
Driving gear 20 engages, and 4 head end of the headstock is circumferentially fixed on the inner spline housing 25 by one inner spline housing 25 of bearing support
First, second driven pulley, first driven pulley 7, the second driven pulley 6 are solid by being keyed with inner spline housing 25 respectively
It is fixed, wherein the first driven pulley 7 is connected by the first transmission belt 10 with the first transfer belt wheel 15, and the second driven pulley 6 passes through the
Two transmission belts 9 are connected with the second transfer belt wheel 11.8 epimere of main shaft of one feed head is set as spline segment, the length of the spline segment
It is fed distance, the spline segment and 25 spline fitted of inner spline housing more than tapping.8 hypomere of the main shaft is set as cylindrical section, the circle
Axis positions the one stroke sleeve 26 that is slidably matched on shell of column.For ease of installation, the upper and lower ends of the stroke sleeve 26 are respectively equipped with
Bearing locating slot, stroke sleeve 26 are matched by the cylindrical section sliding of bearing and head spindle 8 in two bearings locating slot
It closes, and be located in the bearing axis of 26 upper and lower ends of stroke sleeve by installing upper and lower spring collar respectively on cylindrical section,
Between lower spring collar, forms 8 cylindrical section of head spindle and the axis positioning of stroke sleeve 26 is slidably matched.The stroke sleeve 26
Upper surface is to the displacement stroke distance L there are stroke sleeve 26 between 25 lower face of inner spline housing, displacement stroke distance L
180~200mm can guarantee that the feed range of tapping can at least reach 180 mm.Moreover, the head spindle 8 is attacked
Silk rotating speed is not less than 700 revs/min, moves back a rotating speed and is not less than 800 revs/min, the screwing speed of the present embodiment up to 745 turns/
Minute, speed is moved back up to 868 revs/min, and this speed is that existing tapping machine is unable to reach.4 lower end of the headstock
Equipped with limited block, it can be used for limiting 26 excessive axial displacement of stroke sleeve.The axially disposed rack of 26 outer wall of stroke sleeve,
The length of the rack is more than tapping and is fed distance, which engages with the gear shaft 27 for being supported in headstock 4, the gear
Control handle 3 and switch shift fork 29 are installed in 27 one end of axis, and the other end installs return spring 30, which uses butterfly-type bullet
Spring is preferred, the travel switch 28 for controlling two electromagnetic clutch power on/off being arranged on the switch shift fork 29 and headstock 4
Conversion that is corresponding, controlling tapping for touching travel switch 28, move back silk.The switch shift fork 29 is fan-shaped or round shift fork, should
Switch shift fork 29 is circumferentially located on gear shaft 27, be can guarantee that switch shift fork rotates under the drive of gear shaft 27, can be protected always
It demonstrate,proves opposite corresponding with the travel switch 28 that is arranged on headstock 4, can pass through after completing a feed stroke and manipulate manipulation hand
Handle 3 push gear shaft 27 axial movement so that switch shift fork 29 is touched travel switch 28, by travel switch 28 control an electromagnetism from
Clutch powers off, another electromagnetic clutch is powered, and realizes tapping, moves back the mutual conversion and control of silk, conversion and control process letter
Singly, conveniently.
For ease of reducing the volume of the headstock 4 in crossbeam shape, reduce headstock with material and setting convenient for inner spline housing
Installation is set, bearing block 5 can be arranged in 4 head end of the headstock of this tapping machine, and the bearing block 5 is bolted on headstock
The upper surface of 4 head ends, the bearing block 5 is slidably matched by upper bearing (metal) and lower bearing with inner spline housing 25, in bearing block 5
Thrust bearing can be used in lower bearing, to ensure that the axial displacement that drops will not occur for the inner spline housing 25 being assemblied in bearing block 5.
For ease of the assembly of head spindle 8, the head spindle 8 is multi-diameter shaft, and the diameter of head spindle spline segment is less than
The diameter of cylindrical section, the length of spline segment are more than the axial length of inner spline housing.Main shaft 8 be can guarantee in this way during feed,
Always it can ensure to form spline fitted with inner spline housing 25, inner spline housing 25 is enable to transmit torque to main shaft 8, drive main shaft
Rotation.
It is installed for ease of the quick-replaceable of tap chuck 2, the head spindle is justified 8 shell of column lower ends and is equipped with for installing screw tap
The mohs tapered bore of collet, tap chuck 2 use the quick chuck with Morse's taper.By in machining apparatus compared with frequently with band
The quick chuck of Morse's taper coordinates with mohs tapered bore assembly, may be implemented that screw tap specification can be completed more with 1~2 second
It changes, keeps replacement screw tap easier, quick.
This tapping machine by be arranged clutch transmission case in clutch shaft upper and lower end two electromagnetic clutch, and
A pair of of commutation driving gear, commutation driven gear in clutch transmission case are set, and pass through a total belt mechanism and two points
Belt mechanism, two electromagnetic clutch are under the control of travel switch, and the first electromagnetic clutch is in normally open, for controlling
System moves back silk work, and the second electromagnetic clutch is in normally off, by the control to travel switch, realizes two electromagnetic clutch
Mutual work conversion.Thus it only needs a motor to export power to a direction high speed rotation always, will not burn out
Motor ensure that application of the high-speed motor on tapping machine, can be achieved with tapping and moves back the positive direction rotation of silk, to complete
The requirement of tapping.
When using the deep hole processing tapping of this tapping machine, startup power supply, electric motor operation passes through total transmission belt, driven total band
Wheel drive clutch shaft rotation, lower the first electromagnetic clutch in normally open of travel switch control obtain electric first point of drive
Movable belt pulley rotates, and the first transfer belt wheel drives the main shaft work into head by the first transmission belt, the first driven pulley, inner spline housing
It rotates in the forward direction, screw tap is in and moves back a rotation status at this time, will not cause the damage to workpiece；Then it manipulates control handle and allows switch
Shift fork touches travel switch, and the first electromagnetic clutch is made to power off, and the second electromagnetic clutch obtains electric drive commutation driving gear rotation,
The driving gear that commutates passes through driven gear, transmission shaft, the second transfer belt wheel, the second transmission belt, the second driven pulley, the interior flower of commutating
Key set drives the main shaft into head to reversely rotate, and screw tap is in tapping rotation status, then manipulates control handle to feed side
To rotation, stroke sleeve is driven to move down by gear shaft, stroke sleeve drives main shaft to be transported downwards under tapping rotation status
Dynamic to carry out tapping processing to workpiece, as long as screw tap enters in workpiece hole after progress tapping, operating personnel can be no longer to manipulating hand
Handle exerts a force, and main shaft automatic feed is driven by screw tap；When tapping reaches depth requirements, quick chuck is in the mohs tapered bore of main shaft
It skidding, manipulates control handle again at this time and switch shift fork is allowed to touch travel switch, travel switch makes the second electromagnetic clutch power off,
First electromagnetic clutch obtains electric, so that screw tap recovery is moved back a rotation status, silk is moved back in realization, completes the tapping operation of a threaded hole.
In practice, tapping processing is carried out to the threaded hole of hole depth 100mm or so using this tapping machine, tapping rotating speed is
745 revs/min, move back a rotating speed be 868 revs/min, a tapping machine per tour at least can 3600 threaded holes of tapping, machining accuracy
Reach 0.008mm, considerably beyond the working efficiency of existing electric threading machine.
Claims (10)
1. a kind of large travel high-speed electric threading machine includes the engine base with column and workbench, headstock is installed on column,
It is characterized in that：Headstock head end installation feed head, tail end install motor, be arranged between motor and feed head from
Transmission case is closed, is erect side by side in clutch transmission case and a clutch shaft and a transmission shaft is set, it is circumferential in the clutch shaft
Fixed driven total belt wheel is connected by total transmission belt with the output pulley that motor is installed, the setting of two electromagnetic clutch from
It closes in transmission case, and is located at the upper and lower end of clutch shaft, the Moving plate of two electromagnetic clutch is all with clutch shaft
To being fixedly connected, the equal empty set of armature of two electromagnetic clutch is in clutch shaft, wherein the armature of the first electromagnetic clutch with
The first transfer belt wheel being slidably matched in clutch shaft is fixedly connected, on the armature and clutch shaft of the second electromagnetic clutch
The commutation driving gear being slidably matched is fixedly connected；Commutation driven gear and the second transfer band are circumferentially fixed on the transmission shaft
Wheel, the commutation driven gear are engaged with commutation driving gear, and for the headstock head end by one inner spline housing of bearing support, this is interior
Circumferentially fixed first, second driven pulley on spline housing, the first driven pulley pass through the first transmission belt and the first transfer belt wheel phase
Even, the second driven pulley is connected by the second transmission belt with the second transfer belt wheel；The main shaft epimere of one feed head is set as spline
Section, the length of the spline segment are more than tapping and are fed distance, and the spline segment and inner spline housing spline fitted, main shaft hypomere are set as round
Shell of column, on the cylindrical section axis positioning be slidably matched one stroke sleeve, the axially disposed rack of stroke sleeve outer wall, the tooth
The length of item is more than tapping and is fed distance, which engages with the gear shaft for being supported in headstock, installed on the gear shaft
Control handle and switch shift fork, it is described to switch the row for controlling two electromagnetic clutch power on/off being arranged on shift fork and headstock
Cheng Kaiguan is corresponded to, the conversion for touching travel switch control tapping, moving back silk.
2. large travel high-speed electric threading machine according to claim 1, it is characterised in that：Up and down the two of the stroke sleeve
End is respectively equipped with bearing locating slot, and stroke sleeve is slided by the cylindrical section of bearing and main shaft in two bearings locating slot
Coordinate, and be located in the bearing axis of stroke sleeve upper and lower ends by installing upper and lower spring collar respectively on cylindrical section,
Between lower spring collar, the axis positioning of the cylindrical section and stroke sleeve that form main shaft is slidably matched.
3. large travel high-speed electric threading machine according to claim 1, it is characterised in that：Stroke sleeve upper surface is extremely
There are the displacement stroke distance of stroke sleeve between inner spline housing lower face, displacement stroke distance is 180~200mm, head
Seat lower end is equipped with limited block.
4. large travel high-speed electric threading machine according to claim 1, it is characterised in that：The cylindrical section lower end of the main shaft
Equipped with the mohs tapered bore for installing tap chuck, tap chuck uses the quick chuck with Morse's taper.
5. large travel high-speed electric threading machine according to claim 1, it is characterised in that：The main shaft is multi-diameter shaft, main
The diameter of the spline segment of axis is less than the diameter of cylindrical section, and the length of spline segment is more than the axial length of inner spline housing.
6. large travel high-speed electric threading machine according to claim 1, it is characterised in that：The tapping rotating speed of the main shaft is not
Less than 700 revs/min, moves back a rotating speed and be not less than 800 revs/min.
7. large travel high-speed electric threading machine according to claim 1, it is characterised in that：The switch shift fork be it is fan-shaped or
Round shift fork, the switch shift fork are circumferentially located on gear shaft, are contacted with travel switch by control handle pull switch shift fork.
8. large travel high-speed electric threading machine according to claim 1, it is characterised in that：The headstock head end is equipped with axis
Bearing, the bearing block are slidably matched by upper bearing (metal) and lower bearing with inner spline housing.
9. large travel high-speed electric threading machine according to claim 1, it is characterised in that：The first transfer belt wheel changes
It is slidably matched respectively by bearing and clutch shaft to driving gear.
10. large travel high-speed electric threading machine according to claim 1, it is characterised in that：The workbench is slided for cross
Platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775565.6A CN106238833B (en) | 2016-08-31 | 2016-08-31 | Large travel high-speed electric threading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610775565.6A CN106238833B (en) | 2016-08-31 | 2016-08-31 | Large travel high-speed electric threading machine |
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| Publication Number | Publication Date |
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| CN106238833A CN106238833A (en) | 2016-12-21 |
| CN106238833B true CN106238833B (en) | 2018-09-07 |
Family
ID=58079820
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610775565.6A Active CN106238833B (en) | 2016-08-31 | 2016-08-31 | Large travel high-speed electric threading machine |
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| CN201098743Y (en) * | 2007-09-20 | 2008-08-13 | 浙江西菱台钻制造有限公司 | Multi-shaft digital control drill press capable of automatic feeding |
| CN206200269U (en) * | 2016-08-31 | 2017-05-31 | 邻水县川邻机械制造有限公司 | Large travel high-speed electric threading machine |
-
2016
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| SU1093427A1 (en) * | 1982-10-04 | 1984-05-23 | Предприятие П/Я В-2330 | Drilling machine spindle unit |
| RU2000188C1 (en) * | 1991-06-13 | 1993-09-07 | Agapov Vladimir G | Lathe spindle drive |
| CN2182019Y (en) * | 1993-12-07 | 1994-11-09 | 沈阳工业学院 | Vertical drilling, threading machine |
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| CN2508880Y (en) * | 2001-06-15 | 2002-09-04 | 绍兴凯杰机械有限责任公司 | Machine tool working-spindle running direction electromagnetic controller |
| CN2587565Y (en) * | 2002-11-22 | 2003-11-26 | 杭州西湖台钻有限公司 | Mainshaft box for threading/drilling two-purpose machine |
| CN201098743Y (en) * | 2007-09-20 | 2008-08-13 | 浙江西菱台钻制造有限公司 | Multi-shaft digital control drill press capable of automatic feeding |
| CN206200269U (en) * | 2016-08-31 | 2017-05-31 | 邻水县川邻机械制造有限公司 | Large travel high-speed electric threading machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106238833A (en) | 2016-12-21 |
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