CN1647892A - Broach cleaning device - Google Patents
Broach cleaning device Download PDFInfo
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- CN1647892A CN1647892A CN 200510005811 CN200510005811A CN1647892A CN 1647892 A CN1647892 A CN 1647892A CN 200510005811 CN200510005811 CN 200510005811 CN 200510005811 A CN200510005811 A CN 200510005811A CN 1647892 A CN1647892 A CN 1647892A
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- broaching tool
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Abstract
To lengthen the service life, by improving the cleaning function of chips, by strongly rubbing a broach by a brush. This device is arranged in three places so that a brush unit 10 forms a concentric circle to the center C of the broach 1, and is constituted so as to be reciprocatably supported in the direction for approaching/separating to the center C of the broach 1 by a driving cylinder 15. This device is rubbed in the circumferential direction along a cutting edge part 5 of the broach 1 by reciprocatably rotating a turntable 14 in the horizontal direction by 180[deg.] in a state of putting the brush in an operation position, and brushes off and removes the chips sticking to a part over an inner surface part 5c from an edge part 5b of a cutting edge 5a for constituting the cutting edge part 5 in the broach 1.
Description
Technical field
The present invention relates to remove the broach cleaning device of smear metal from the broaching tool of broaching machine.
Background technology
Be processed to form the Work machine-broaching machine of the groove etc. of axis direction as inner face at circular workpiece, it is constructed as follows, have on the workbench of through hole, around the mount pad that the mounting workpiece is set around this through hole, by this through hole broaching tool can be installed up or down, wherein the peripheral part at this broaching tool forms a plurality of blade parts towards axis direction.Because broaching tool carries out machining to workpiece, so can produce smear metal man-hour in this adding.Thereby, after process finishing,, add man-hour in next time if do not remove this smear metal, just can not form correct groove, and, might cause damage to comprise the workpiece inner face of groove because of smear metal, and produce bad phenomenon such as burr.So when frequently using broaching tool, preferably all must clean after the process finishing each time to blade.
Method as cleaning the broaching tool blade part has under the situation that adds the supply of lubricant in man-hour, utilizes lubricant to wash away smear metal and the method removed.Also there is pair broaching tool to blow air pressurized, utilizes flowing of this air, remove the method for foreign matters such as smear metal from the blade part of broaching tool.But utilize the cleaning of the broaching tool blade part of fluid may not necessarily fully remove foreign matter like this, and utilize the method for brush brushing can more effectively remove foreign matters such as smear metal.
Make brush wipe moving and the device that cleans for example shown in the patent documentation 1 with respect to broaching tool, this cleaning device constitutes with the brush sub-assembly, this brush sub-assembly is a plurality of brushes towards the radial direction inboard of circular ground transplanting on the inner face that forms cogged gear ring on the outer peripheral face, the gear of this brush sub-assembly is connected on the device of rotation driving is provided with, broaching tool is being inserted under the state of above-mentioned gear ring inside, broaching tool is moved along axis direction, simultaneously, the brush sub-assembly is rotated towards a direction, in view of the above by utilizing brush to wipe the blade part of moving broaching tool, and clean.
[Patent Document 1] Japanese kokai publication sho 54-35488 communique
But, make brush rotate and wipe under the situation of moving broaching tool blade part to a direction, smear metal all is stacked on the direction, and a part of smear metal of wiping from the brush that rotates might be attached on the blade and left behind, and the smear metal of adhering on blade etc. can not be removed sometimes fully.And, in cleaning because brush always to a direction bending, so will produce crooked natural inclination, and because reasons such as brush wearing and tearing, and the ability that makes brush remove smear metal from blade reduces, generally speaking, the structure of above-mentioned prior art, aspect cleaning function, and aspect the life-span, still has room for improvement at brush.
Summary of the invention
The present invention produces in view of above problem points, and its purpose is, utilizes brush to wipe broaching tool more powerfully, improves the cleaning function of smear metal in view of the above, and obtains the long lifetime of brush.
In order to solve above-mentioned problem, the present invention adopts is configured to a kind of broach cleaning device, it is attached on the broaching machine, be used to clean in broaching and add man-hour attached to the smear metal on the blade part, above-mentioned broaching machine has broaching tool and supporting platen, above-mentioned broaching tool is provided with blade part on periphery, during moving along axis direction, workpiece is processed; Above-mentioned supporting platen forms the through hole that above-mentioned broaching tool passes, and formation mount pad, this mount pad is used for the workpiece that mounting is processed by above-mentioned broaching, the feature of this device is, have a plurality of brush sub-assemblies, brush near decorporation and brush rotating mechanism, above-mentioned brush sub-assembly has brush, and this brush uniformly-spaced disposes at circumferencial direction to form concentrically ringed mode with above-mentioned broaching tool, and above-mentioned broaching tool is wiped; Above-mentioned brush is to be used to make above-mentioned brush back and forth movement between retreating position and operating position near decorporation, and above-mentioned retreating position is when workpiece is set on the above-mentioned mount pad, above-mentioned brush is positioned at the position in the outside of this workpiece; Above-mentioned operating position is under the state that above-mentioned workpiece is taken off, and makes the blade part sliding-contact of above-mentioned brush and above-mentioned broaching tool, and above-mentioned blade part is cleaned; Above-mentioned brush rotating mechanism along the circumferential direction comes and goes rotation with above-mentioned each brush sub-assembly around above-mentioned broaching tool, above-mentioned brush rotating mechanism has the rotational travel that is not less than the configuration space angle that is equivalent to above-mentioned brush sub-assembly.
Make broaching tool work, workpiece is added man-hour, can adhere to smear metal on its blade, this smear metal is enclosed in the inboard of blade part, and, because the effect of the heat that cutting the time is produced etc., smear metal with quite high adhesion strength attached on the blade.Therefore under the situation of not damaging blade, brush preferably uses the material with rigidity to a certain degree, for example uses the thicker materials in line footpath such as nylon.As the cross sectional shape of each rhachis that constitutes brush, can be circular, but use the rhachis at angle can bring into play better cleaning performance with quadrangle, triangle etc.Can under dry status, clean, still, when cutting, flow under the situation of lubricant, if on one side lubricant is come out to clean on one side from the internal spray of brush when cleaning, just can utilize lubricant to wash away smear metal, so, can more effectively clean.
The brush of configuration is configured in 2 places, preferably 3 places and even 4 places at least around broaching tool.For example following structure is configured in 3 places with each brush every 120 °, and the brush rotating mechanism makes each brush carry out roughly 180 ° round rotation; Perhaps also can be arranged on 4 places every 90 °, make each brush carry out 120 ° round rotation.But if too many brush is set, it is complicated that structure not only becomes, and may bring obstacle for workpiece loading and unloading on mount pad.And, each brush utilize brush near decorporation with respect to the broaching tool blade part near and the direction up conversion position left, if but can adjust the inlet of brush to broaching tool, just can prolong the life-span of brush.
Further, the brush that is provided with in many places only comes and goes rotation at the angular range of regulation, these brushes are rotated independently, but, in order to simplify the brush rotating mechanism, best structure is to utilize single brush rotating mechanism that all brushes are rotated simultaneously, for this reason, this brush rotating mechanism constitutes in the following manner, in mode rotating disk is set around the installation portion that workpiece is installed, on this rotating disk, installation has the integral body of brush near the brush sub-assembly of decorporation, makes dial rotation.As the mechanism that makes dial rotation, can be the structure that for example utilizes cylinder etc., but also can use can positive and negative rotation motor.And,, and the end of travel limiting mechanism is set for the position of the round rotational travel end that limits rotating disk.Concrete structure as this end of travel limiting mechanism, for example barrier structure is set in rotating disk one side, and the arranged outside at rotating disk contacts with barrier plate, do not do the member of the rotation that exceeds this scope to limit rotating disk, and, in order to have the function that absorbs inertia force, this member preferably utilizes buffer component to constitute, and above-mentioned inertia force is in dial rotation during to the rotational travel terminal position and produce.
If according to the present invention, can produce following effect, utilize brush to wipe broaching tool powerfully, can remove smear metal effectively, improve the cleaning function of smear metal, and, can obtain the long lifetime of brush etc.
Description of drawings
Figure 1 shows that the sectional view of pith of the workpiece machining state of broaching machine with the cleaning device in the embodiment of the invention.
Figure 2 shows that the plane of Fig. 1.
Figure 3 shows that the outside drawing of an example of the machining state of workpiece.
Figure 4 shows that the sectional view of the pith amplification of blade part.
Figure 5 shows that the sectional view of pith of cleaning state of the workpiece of broaching machine with the cleaning device in the embodiment of the invention.
Figure 6 shows that the plane of Fig. 5.
The specific embodiment
With reference to the accompanying drawings embodiments of the invention are described, at first, Fig. 1 and Fig. 2 represent the structure of broaching machine significant points.In the drawings, the 1st, broaching tool, the 2nd, supporting platen, the 3rd, mount pad, this structure for example shown in Figure 3 are the parts that is used in this broaching machine forming on the inner face of the workpiece 4 of drum towards the groove 4a of axis direction.
Broaching tool 1 omits its diagram, but its structure is to have clamping section up and down, blade part 5 is set between two clamping sections, and is configured in the mode of passing the through hole 2a that is formed on the supporting platen 2.As shown in Figure 4, blade part 5 has the axis direction towards broaching tool 1, and with the regulation spacing separate the circular blade 5a that is provided with, on blade 5a, the groove that is formed for the groove 4a of processing work 4 on its part adds Ministry of worker's (omitting diagram), and its external diameter minimum bottom, external diameter maximum topmost, make outside dimension from a side bottom to a side topmost continuously or staged ground increase.
Therefore, workpiece 4 is placed on the mount pad 3, and this mount pad 3 is provided in the upper position at the position of the through hole 2a that forms supporting platen 2.In this state, if make this broaching tool 1 along the direction displacement that descends shown in Fig. 1 arrow, broaching tool 1 just enters into workpiece 4 inside, and the result utilizes the inner face of 5 pairs of workpiece 4 of blade part to cut, on the inner face of this workpiece 4, form groove 4a, and workpiece 4 inner faces are by smoothing.And in the meantime, lubricant is provided between broaching tool 1 and the workpiece 4 by a plurality of lubricant supply nozzles 6 from the oblique upper that is arranged on manufacture field.
If carry out the machining of the inner face of aforesaid workpiece 4, thereby the smear metal meeting is adhered on the blade part 5 of broaching tool 1 and be left behind.Therefore after the process finishing of workpiece 4,, will clean in order to remove the smear metal that produces because of cutting from blade part 5.For this reason, be provided with the cleaning device of broaching tool 1, in Fig. 1 and Fig. 2, represented the machining state of workpiece 4, in Fig. 5 and Fig. 6, represented the duty of cleaning device.From these figure as can be seen, the 10th, the brush sub-assembly, the mode that this brush sub-assembly 10 brush 12 with clamping removably is fixed on the clamping component 11.Brush 12 utilization plugs the rhachis that has rigidity to a certain degree a lot of as the nylon etc. and constitutes on short transverse and width, utilize these brush 12 wiping moving knife blades 5 and will remove attached to the smear metal on the blade 5a.
Here, the blade 5a of blade part 5 forms the shape that is bent inwardly into concavity from the nose part 5b towards oblique below, and smear metal is trapped among the interior facial 5c of this bending, therefore, must make brush 12 enter into the position of depths of the interior facial 5c of blade 5a.And because brush 12 can wear and tear, thereby the necessary inlet of adjusting to blade part 5.For this reason, slide bar 13 passes the limiting member 16 that is fixedly installed on the rotating disk 14 and extends out, and near the end of this slide bar 13, promptly on the position that exceeds limiting member 16, slide bar 13 passes stop member 17.And, form threaded portion 13a in the end of slide bar 13 side, on the 13a of this threaded portion, nut 18 is set, this nut 18 is used to adjust the position of stop member 17 along the axis direction of slide bar 13, therefore, if nut 18 is moved along slide bar 13, position is according to the rules adjusted, and the inlet of the blade part 5 of brush 12 when moving to the operating position just changes.
Be under the state of operating position at the brush 12 that makes brush sub-assembly 10, blade part 5 along broaching tool 1 is wiped in a circumferential direction, accompanying smear metal is swept and is removed in view of the above will be from the nose part 5b of blade 5a to the position of interior facial 5c, and above-mentioned blade 5a constitutes the blade part 5 on the above-mentioned broaching tool 1.Therefore brush 12 becomes the structure that along continuous straight runs rotates.That is, the driving cylinder 15 and the stop member 17 that constitute brush sub-assembly 10 are installed on the rotating disk 14, and this rotating disk 14 utilizes brush rotating drive mechanism 20 to drive and carries out the round rotation of predetermined angular.An example of this brush rotating drive mechanism 20 is expressed in Fig. 1, Fig. 5 etc.
Illustrated brush rotating drive mechanism 20 has CD-ROM drive motor 21, and this CD-ROM drive motor 21 can forward and reversely rotate, and is installed on the 1st bearing support 2b that is fixedly set on the supporting platen 2, and driving pulley 22 is connected on its output shaft and is provided with.And the 2nd bearing support 2c is fixedly installed on the supporting platen 2, and transmitter shaft 23 can be installed between above-mentioned the 2nd bearing support 2c and the supporting platen 2 freely to rotate.On this transmitter shaft 23, upper and lower settings transmission belt wheel 24,25.Further, cylindrical portion 14a is connected on the rotating disk 14 and is provided with, and this cylindrical portion 14a is round mount pad 3, and between cylindrical portion 14a and mount pad 3 bearing 26 has been installed, utilize this bearing 26, connecting the cylindrical portion 14a that is arranged on the rotating disk 14 can rotate with respect to mount pad 3.On this cylindrical portion 14a, driven pulley 27 is set.And driving side is wound with 28 synchronously and is arranged on the driving pulley 22 that directly is connected on the CD-ROM drive motor 21 and transmits between the belt wheel 24, and slave end is with 29 to be wound to be arranged on and to transmit between belt wheel 25 and the driven pulley 27 synchronously.
Rotating disk 14 is driven and is rotated in the horizontal direction by CD-ROM drive motor 21, and its rotational travel is confined scope, and CD-ROM drive motor 21 makes rotating disk 14 towards the direction of turning right and the direction of left-hand rotation, comes and goes rotation with desirable angle.Brush sub-assembly 10 is set at 3 places, these brush sub-assemblies 10 are configured with the interval that has 120 ° each other on rotation direction, therefore rotating disk 14 preferably rotates about 180 ° to rotate more than or equal to the angle at 120 ° at the interval of brush sub-assembly 10.In view of the above, utilize the moving scope of wiping of 12 pairs of blade parts 5 of brush only to cover the angular range of stipulating, that is, and 60 ° scope.Therefore, for the position of the rotational travel end that limits rotating disk 14, and have the end of travel limiting mechanism.
The end of travel limiting mechanism is made of the stop member that is arranged between rotating side and the fixation side, and 1 place is set on the either side of rotating side and fixation side, and 2 places are set on opposite side.As the block mechanism of rotating side, constitute by the barrier plate 30 that is arranged on the rotating disk 14, and the block mechanism of fixation side is fixedly mounted in the top of supporting platen 2, utilize buffer component 32 to constitute at 2 set on the top plate portion 31 of rotating disk 14 places.The parts that buffer component 32 has used the parts that utilize fluid pressure or elastic component to constitute, if rotating disk 14 arrives the position of rotational travel ends, by the inertia force of absorption on above-mentioned rotating disk 14, performance absorbs the function of the impulsive force of rotational travel end.
Utilize above-mentioned structure, broaching tool 1 is positioned under the state of upward stroke end, workpiece 4 is installed to the position of stipulating on the mount pad 3, the inner face of workpiece 4 is processed by broaching tool 1 is descended.And if broaching tool 1 moves to the end of descending stroke, then workpiece 4 has been implemented the processing of groove 4a, in this state, take off workpiece 4 from mount pad 3, rise to the end of upward stroke, just become the state that to process next workpiece 4 by making broaching tool 1.
And, rise operating period at this broaching tool 1, broaching tool 1 is cleaned.For this reason, before broaching tool 1 rises, utilize the driving cylinder 15 that is arranged on 3 places to make brush sub-assembly 10 move to the operating position.In view of the above, brush 12 touches the blade part 5 on the broaching tool 1, and, enter into the inner face of blade 5a.In this state, in the time of with broaching tool 1 pull-up, make the CD-ROM drive motor 21 that constitutes brush-driven mechanism 20 carry out work, in view of the above, the rotation of CD-ROM drive motor 21 is passed to rotating disk 14, and the brush 12 that is connected with rotating disk 14 carries out circular arc along blade part 5 and moves.Its result, the integral body of utilizing 12 pairs on brush to comprise the blade 5a of the interior face that forms concavity is wiped, in view of the above, is eliminated attached to the smear metal on the blade 5a.
And if rotating disk 14 arrives the position of rotational travel end, the barrier plate 30 that is arranged on the rotating disk 14 just touches buffer component 32, the result, and inertia force is absorbed, and rotating disk 14 just stops smoothly and gently.Therefore, by making CD-ROM drive motor 21 backwards rotation, rotating disk 14 just reverses, and it is moving that brush 12 just carries out rightabout wiping with respect to blade 5a.And, on the position of rotational travel end, might be bonded at blade 5a attached to the smear metal on the brush 12 and go up and left behind, but going up the residual position of smear metal, blade 5a utilize the brush 12 that is arranged on the adjacent position to be wiped moving once more in the opposite direction.Like this, by repeatedly wiping moving same position repeatedly, smear metal is just swept really.That is, adjust the speed of pulling on of broaching tool 1 and the velocity of rotation of rotating disk 14, brush more than 12 time is the same position of the 5a of wiper edge portion repeatedly, in view of the above, can remove the smear metal on the whole attached to facial 5c in beginning from nose part 5b to comprise reliably.And, at this moment, utilize brush 12 to wipe moving the time, by providing lubricant to blade 5a, and utilize lubricant that smear metal is washed away from lubricant supply nozzle 6, therefore, cleaning performance is better.And, when broaching tool 1 moves to uppermost position, drive cylinder 15 work by making, make brush 12 move to retreating position, the workpiece 4 of new needs processing just can be installed on mount pad 3.
When utilizing brush 12 to wipe moving knife sword 5a, its mao end is pressed and is attached on the blade 5a, moves with case of bending, if but arriving the rotational travel terminal position, moving direction is just inverted, and the part of the hair end of brush 12 is just crooked in the opposite direction, so, can suppress crooked natural inclination.And, wipe the wearing and tearing of moving knife sword 5a hair end if utilize brush 12, just be screwed on the position of the nut 18 on the threaded portion 13a of slide bar 13 by adjustment, extend the shift motion of brush 12 from the retreating position to the operating position, in view of the above, the inlet of brush 12 can be adjusted, therefore, the moving condition of wiping of brush 12 can be kept well to blade 5a.Thereby the long lifetime of acquisition brush 12 can always clean broaching tool 1 under good condition.
Claims (5)
1, a kind of broach cleaning device, this device is attached on the broaching machine, is used for adding the cleaning in man-hour attached to the smear metal on the blade part in broaching, and above-mentioned broaching machine has broaching tool and supporting platen, above-mentioned broaching tool is provided with blade part in periphery, during moving along axis direction workpiece is processed; Above-mentioned supporting platen forms the through hole that passes above-mentioned broaching tool, forms the mount pad that mounting is utilized the workpiece that above-mentioned broaching tool processes,
It is characterized in that this broach cleaning device has a plurality of brush sub-assemblies, brush near decorporation and brush rotating mechanism,
Above-mentioned brush sub-assembly has the brush that forms concentric circles, equally spaced configuration along the circumferential direction, above-mentioned broaching tool is wiped with above-mentioned broaching tool;
It is mobile that above-mentioned brush is used to make above-mentioned brush to come and go between retreating position and operating position near decorporation, and above-mentioned retreating position is when workpiece is set on the above-mentioned mount pad, makes above-mentioned brush be positioned at the position in this workpiece outside; Above-mentioned operating position is under the state that above-mentioned workpiece is taken off, and makes the blade part sliding-contact of above-mentioned brush and above-mentioned broaching tool and position that above-mentioned blade part is cleaned;
Above-mentioned brush rotating mechanism makes above-mentioned each brush sub-assembly along the circumferential direction come and go rotation around above-mentioned broaching tool,
Above-mentioned brush rotating mechanism has the rotational travel of the angle that is not less than the configuration space that is equivalent to above-mentioned brush sub-assembly.
2, the described broach cleaning device of claim 1 is characterized in that, above-mentioned each brush sub-assembly is arranged on 3 places with 120 ° angle, and above-mentioned brush rotating mechanism makes these brush sub-assemblies come and go rotation with 180 ° angle roughly.
3, the described broach cleaning device of claim 1 is characterized in that, above-mentioned brush can be adjusted at above-mentioned brush in the operating position of above-mentioned brush to the inlet of the blade part of above-mentioned broaching tool near decorporation.
4, the described broach cleaning device of claim 1, it is characterized in that, above-mentioned brush sub-assembly is installed on the rotating disk that disposes in the mode around above-mentioned mount pad, above-mentioned brush rotating mechanism is made of motor and end of travel limiting mechanism that can forward and reverse rotation, and above-mentioned motor that can forward and reverse rotation is used to make above-mentioned dial rotation; The position of the rotational travel end of the above-mentioned rotating disk of above-mentioned stroke end limit mechanics limit.
5, the described broach cleaning device of claim 4 is characterized in that, above-mentioned stroke end limit mechanism is made of barrier plate and buffering member, and above-mentioned barrier plate is arranged on the above-mentioned rotating disk; Above-mentioned buffer component is configured in outside the above-mentioned rotating disk, contacts with above-mentioned barrier plate in the position of above-mentioned rotating disk end of travel, to absorb the inertia force of above-mentioned rotating disk.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004017851A JP2005211991A (en) | 2004-01-27 | 2004-01-27 | Broach cleaning device |
| JP2004017851 | 2004-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1647892A true CN1647892A (en) | 2005-08-03 |
Family
ID=34879037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510005811 Pending CN1647892A (en) | 2004-01-27 | 2005-01-27 | Broach cleaning device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005211991A (en) |
| CN (1) | CN1647892A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600262A (en) * | 2013-10-29 | 2014-02-26 | 格林精密部件(苏州)有限公司 | Broach scrap iron cleaning device |
| CN107511716A (en) * | 2016-06-16 | 2017-12-26 | 中电电机股份有限公司 | Steam turbo generator line embedding groove cutting tool cleaning device |
| CN111136503A (en) * | 2020-02-12 | 2020-05-12 | 王永奇 | Vertical numerically controlled lathe |
| CN111168461A (en) * | 2020-02-12 | 2020-05-19 | 王美珠 | High-efficient horizontal numerical control turning center equipment |
| CN113634816A (en) * | 2021-06-18 | 2021-11-12 | 威海市威力高档工具有限公司 | Automatic scrap removing device for broach |
| CN113828852A (en) * | 2021-10-23 | 2021-12-24 | 南京平双塑机齿轮制造有限公司 | High-precision machining equipment and method for internal spline |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011156624A (en) * | 2010-02-02 | 2011-08-18 | Mitsubishi Heavy Ind Ltd | Apparatus and method for removing broaching cutting chip |
-
2004
- 2004-01-27 JP JP2004017851A patent/JP2005211991A/en not_active Withdrawn
-
2005
- 2005-01-27 CN CN 200510005811 patent/CN1647892A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600262A (en) * | 2013-10-29 | 2014-02-26 | 格林精密部件(苏州)有限公司 | Broach scrap iron cleaning device |
| CN107511716A (en) * | 2016-06-16 | 2017-12-26 | 中电电机股份有限公司 | Steam turbo generator line embedding groove cutting tool cleaning device |
| CN111136503A (en) * | 2020-02-12 | 2020-05-12 | 王永奇 | Vertical numerically controlled lathe |
| CN111168461A (en) * | 2020-02-12 | 2020-05-19 | 王美珠 | High-efficient horizontal numerical control turning center equipment |
| CN111136503B (en) * | 2020-02-12 | 2020-12-11 | 湖州浪佩智能科技有限公司 | Vertical numerically controlled lathe |
| CN113634816A (en) * | 2021-06-18 | 2021-11-12 | 威海市威力高档工具有限公司 | Automatic scrap removing device for broach |
| CN113828852A (en) * | 2021-10-23 | 2021-12-24 | 南京平双塑机齿轮制造有限公司 | High-precision machining equipment and method for internal spline |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005211991A (en) | 2005-08-11 |
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