CN106217142A - The striking gear of screw-tap threaded mill - Google Patents
The striking gear of screw-tap threaded mill Download PDFInfo
- Publication number
- CN106217142A CN106217142A CN201610761030.3A CN201610761030A CN106217142A CN 106217142 A CN106217142 A CN 106217142A CN 201610761030 A CN201610761030 A CN 201610761030A CN 106217142 A CN106217142 A CN 106217142A
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- China
- Prior art keywords
- screw
- tap
- regulation set
- striking gear
- floating bushing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/18—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of taps or reamers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides the striking gear of a kind of screw-tap threaded mill, belong to field of mechanical technique.It solve the problem that the axiality of screw tap when existing screw-tap threaded grinds grinding is relatively low and does not reaches required precision.The striking gear of this screw-tap threaded mill, including casing, the rotary body that can rotate it is equipped with in casing, the middle part of rotary body is fixed with top, the outer end of rotary body is arranged with tubular fixed cover, the outer end of fixed cover is fixed with regulation set, the outer end being provided with floating bushing and floating bushing in regulation set is fixed with floating swinging plate, the middle part of floating swinging plate is for the hole, location passed for screw tap afterbody, the lateral wall of floating bushing is vertically fixed with drive link, drive link is connected with regulation set circumference, the two ends being provided with stage clip and stage clip between floating bushing and regulation set bear against on floating bushing and regulation set.The striking gear of this screw-tap threaded mill has to be enable the screw tap after holding out against to swing and makes the advantage that grinding accuracy is higher.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of screw-tap threaded mill, stirring of a kind of screw-tap threaded mill
Device.
Background technology
Screw thread is that machine components connect most common method, and screw tap is the cutter of a kind of the most frequently used machining internal thread, its knot
Structure is simple, easy to use, and for small size female thread, screw tap is almost unique machining tool.The production process of screw tap
For: blanking flat head chamfering centering → corase grind cylindrical → mill square tail → mill groove → fine cylindrical → thread grinding → shovel slightly, spiral shell
Stricture of vagina mill is the final operation of screw-tap threaded processing, and the precision of screw cutting is the important guarantee of product accuracy of thread after processing.Silk
Taper thread, need to be with two top positioning screw tap centre bores when grinding, and screw tap rotates and driven by the headstock, uses band special power driven tools
Stir screw tap square tail to rotate.
The screw grinder of existing domestic production is substantially manual loading and unloading, when grinding screw thread, and can be the most manually at screw tap square tail
Poke rod is loaded onto at position, is then manually placed into grinding machine two top, headstock driving lever drive screw tap to rotate grinding.This mode of operation
It is people one machine, it is desirable to operator concentrate on, it is to avoid operational error, high to the dependency degree requiring operator, operation
Process also exists potential safety hazard.
A kind of mill screw tap mechanism (application number: 201310115808.X) as disclosed in Chinese patent literature, swinging axle is contained in
In left and right support bracket fastened hole, left and right fixed support is fixed on base plate, and oscillating deck is contained on swinging axle, left and right swing seat
Being contained on oscillating deck, rolling center is contained in the hole of left swing seat, and hands is in the screw being contained in left swing seat, and hands is middle circle
Post is stuck in the groove of rolling center, and axle is contained in the hole of right swing seat, on the cylinder on the right that pattern is fixed on axle, pattern has
Handle, support is contained on right fixed support, and the arc convex surface of right support bracket fastened top is close to the circumferential surface at pattern, two
Fluting spherical cylindrical head axial screw withstands on clip, and spring lever is fixed on oscillating deck, and large washer, spring are contained in spring successively
On the cylinder that bar vertical portion is following.But screw tap is fixed on clip, then carry out top pressure by the top two ends to screw tap, therefore
Screw tap can not swing, and during grinding, the axiality of screw tap is relatively low, does not reaches required precision.
Summary of the invention
It is an object of the invention to there are the problems referred to above for existing technology, it is proposed that a kind of screw tap enable after holding out against
Swing and make the striking gear that the screw-tap threaded that grinding accuracy is higher grinds.
The purpose of the present invention can be realized by following technical proposal: the striking gear of screw-tap threaded mill, including casing, institute
Being equipped with the rotary body that can rotate in the casing stated, the middle part of described rotary body is fixed with top, it is characterised in that described
The outer end of rotary body be arranged with tubular fixed cover, the outer end of described fixed cover is fixed with regulation set, described regulation
The outer end being provided with floating bushing and described floating bushing in set is fixed with floating swinging plate, and the middle part of described floating swinging plate is used for
The hole, location passed for screw tap afterbody, the lateral wall of described floating bushing is vertically fixed with drive link, described drive link and institute
The regulation set circumference stated is connected, and the two ends being provided with stage clip and described stage clip between described floating bushing and described regulation set are divided
It is not resisted against described floating bushing to put with described regulation.
The head of general screw tap is tetragon.Operationally, the afterbody of screw tap is directly inserted in hole, location, top top
The tail end of silk pressing cone, the other end of peripheral hardware top top silk pressing cone.Fixed cover and regulation set is driven to rotate by rotary body, due to
Between drive link and regulation set, circumference is connected, and therefore regulation set drives floating bushing to rotate by drive link, thus drives screw tap to turn
Dynamic, it is achieved the grinding screw thread to screw tap.Owing to drive link and regulation set are for circumferentially fixed, therefore floating bushing can relative accommodation set
Swing, when grinding screw tap, it is possible to the effective torsion transmitting rotary body, and make the advantage that grinding accuracy is higher.
In the striking gear of above-mentioned screw-tap threaded mill, the lateral wall of described regulation set is provided with for drive link embedding
Stepping down breach, the sidewall of described drive link is resisted against on the medial wall of breach of stepping down.Drive link is embedded into steps down in breach, real
Existing drive link is fixedly connected with regulation set in week, has simple in construction and the preferable advantage of transmission effect.
In the striking gear of above-mentioned screw-tap threaded mill, the lateral wall of described regulation set is provided with for drive link embedding
Stepping down breach, described regulation puts the axle of the axis being fixed with two limited posts and described limited post and described regulation set
Line be arranged in parallel, and the lateral wall of described limited post protrudes from the medial wall of described breach of stepping down and described drive link
Lateral wall is all resisted against on the lateral wall of two described limited posts.It is resisted against on limited post by drive link, makes drive link energy
Enough surfaces along limited post swing smoothly, and make drive link drive floating bushing to have preferable limit effect when swinging.
In the striking gear of above-mentioned screw-tap threaded mill, the inner lateral wall of described floating bushing has convex shoulder, institute
The outer end of the regulation set stated is connected end cap, and the outer end of described floating bushing is supported through the end face of described end cap and described convex shoulder
Lean against on the inner face of described floating bushing.Use above-mentioned setting, have easy to connect and preferable to the axial limiting of floating bushing
Advantage.
In the striking gear of above-mentioned screw-tap threaded mill, the inner face of described regulation set is provided with some grooves one, institute
The inner face of the floating bushing stated is provided with some grooves two and described groove one is correspondingly arranged with described groove 211, described
The two ends of stage clip be embedded in respectively the groove one of correspondence with on groove two.The two ends of stage clip are embedded in the groove one of correspondence respectively with recessed
In groove two, there is locating effect preferable to stage clip, it is to avoid the play of stage clip.
In the striking gear of above-mentioned screw-tap threaded mill, the quantity of described stage clip is 4-10 and with described regulation
It is uniformly distributed centered by the axis of set.
In the striking gear of above-mentioned screw-tap threaded mill, it is screw thread phase between described regulation set and described fixed cover
It is connected.Regulation set is fixedly connected with fixed cover screw thread, it is simple to the elastic force of regulation stage clip, has simple in construction simultaneously and connects the most square
Just advantage.
In the striking gear of above-mentioned screw-tap threaded mill, this striking gear also includes that housing is connected on described casing
Motor, described motor is fixedly connected with described rotary body by power transmission shaft.
In the striking gear of above-mentioned screw-tap threaded mill, described casing is arranged on a base, on described base
It is provided with the drive mechanism that described casing can be driven to move axially.Drive casing to move by drive mechanism, make screw tap depart from
Another thimble, it is simple to screw tap discharging, has and uses conveniently advantage.
In the striking gear of above-mentioned screw-tap threaded mill, described drive mechanism is that cylinder body is connected on described base
Cylinder, the piston rod of described cylinder is fixedly connected with described casing.Drive mechanism uses cylinder, has simple in construction and drives
The advantage that efficiency of movement is higher.Drive mechanism may be used without driven by motor screw screw rod transmission.
In the striking gear of above-mentioned screw-tap threaded mill, described base and described antinose-dive leg are provided with spring pressure
Guiding mechanism, described spring pressure guiding mechanism includes the regulation screw being threaded on described base, described case
The bottom of body is provided with mounting groove, and described mounting groove is embedded with spring, and described regulation screw is coaxial with described spring
The inner of setting and described regulation screw is resisted against the outer end of described spring.Spring is regulated by rotating of regulation screw
The size of elastic force, it is achieved the regulation to the pressure on top surface of screw tap, has the easy to adjust and preferable advantage of using effect.
Compared with prior art, the striking gear of this screw-tap threaded mill has the advantage that
1, owing to drive link and regulation set are for circumferentially fixed, therefore floating bushing can swing, at grinding silk by relative accommodation set
During cone, it is possible to the effective torsion transmitting rotary body, and make the advantage that grinding accuracy is higher；
2, it is resisted against on limited post by drive link, enables drive link to swing smoothly along the surface of limited post, and
Drive link is made to drive floating bushing to have preferable limit effect when swinging；
3, the outer end of floating bushing is resisted against on the inner face of floating bushing through the end face of end cap and convex shoulder, has easy to connect
And the preferable advantage of axial limiting to floating bushing；
4, by the size of the elastic force rotating regulation spring of regulation screw, it is achieved the regulation to the pressure on top surface of screw tap, tool
There is the easy to adjust and preferable advantage of using effect.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of the striking gear of this screw-tap threaded mill.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the schematic front view of the striking gear of this screw-tap threaded mill.
In figure, 1, casing；2, rotary body；3, top；4, fixed cover；5, floating bushing；5a, convex shoulder；5b, groove two；6, floating
Dynamic swinging plate；6a, hole, location；7, drive link；8, stage clip；9, regulation set；9a, breach of stepping down；9b, groove one；10, limited post；
11, end cap；12, motor；13, power transmission shaft；14, drive mechanism；14a, cylinder；15, regulation screw；16, spring；17, base；
18, screw tap.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figures 1 to 3, the striking gear of screw-tap threaded mill, including casing 1, in casing 1, it is equipped with the rotation that can rotate
Turning 2, the middle part of rotary body 2 is fixed with top 3, and the outer end of rotary body 2 is arranged with tubular fixed cover 4, outside fixed cover 4
End screw thread is fixed with regulation set 9, and the outer end being provided with floating bushing 5 and floating bushing 5 in regulation set 9 is fixed with floating swinging plate 6, floats
The middle part of swinging plate 6 is for hole, the location 6a passed for screw tap 18 afterbody, and the lateral wall of floating bushing 5 is vertically fixed with drive link 7,
Drive link 7 is connected with regulation set 9 circumference, and the two ends being provided with stage clip 8 and stage clip 8 between floating bushing 5 and regulation set 9 bear against
Floating bushing 5 overlaps on 9 with regulation.Regulation set 9 is fixedly connected with fixed cover 4 screw thread, it is simple to the elastic force of regulation stage clip 8, has knot simultaneously
Structure is simple and connects conveniently advantage.
Regulation set 9 lateral wall be provided with for drive link 7 embed the breach 9a that steps down, regulation set 9 on be fixed with two spacing
The axis of post 10 and limited post 10 be arranged in parallel with the axis of regulation set 9, and the lateral wall of limited post 10 protrudes from the breach 9a that steps down
Medial wall on and the lateral wall of drive link 7 be all resisted against on the lateral wall of two limited posts 10.
Alternatively, the lateral wall of regulation set 9 is provided with the breach 9a that steps down embedded for drive link 7, described biography
The sidewall of lever 7 is resisted against on the medial wall of the breach 9a that steps down.Drive link 7 is embedded into steps down in breach 9a, it is achieved drive link 7 with
Being fixedly connected with in week of regulation set 9, has simple in construction and the preferable advantage of transmission effect.
The inner lateral wall of floating bushing 5 has convex shoulder 5a, and the outer end of regulation set 9 is connected end cap 11, the outer end of floating bushing 5
End face through end cap 11 and convex shoulder 5a is resisted against on the inner face of floating bushing 5, has easy to connect and axial to floating bushing 5
Spacing preferable advantage.
The quantity of stage clip 8 is 4-10 and is uniformly distributed centered by the axis of regulation set 9.The inner face of regulation set 9 sets
Having some groove one 9b, the inner face of floating bushing 5 is provided with some groove two 5b, and stage clip 8 and groove one 9b, groove two 5b are one
One is correspondingly arranged, and the two ends of stage clip 8 are embedded on groove one 9b and groove two 5b of correspondence respectively.
Casing 1 is arranged on a base 17, and this striking gear also includes the motor that housing is connected on casing 1, and motor leads to
Cross power transmission shaft 13 to be fixedly connected with rotary body 2.Base 17 is provided with the drive mechanism 14 that casing 1 can be driven to move axially.Drive
The cylinder 14a that mechanism 14 is connected on base 17 for cylinder body, the piston rod of cylinder 14a and casing 1 phase are solid, have simple in construction and
The advantage that drive efficiency is higher.As preferably, drive mechanism 14 may be used without driven by motor screw screw rod transmission.
Base 17 and described casing 1 support are provided with spring pressure guiding mechanism, and spring pressure guiding mechanism includes screw thread
The regulation screw 15 being connected on base 17, the bottom of casing 1 is provided with mounting groove, and mounting groove is embedded with spring 16, regulation
Screw 15 and spring 16 are coaxially disposed and regulate the inner of screw 15 and be resisted against the outer end of spring 16.
The head of general screw tap 18 is tetragon.Operationally, the afterbody of screw tap 18 is directly inserted in the hole 6a of location,
The tail end of top 3 top silk pressing cones 18, the other end of the top 3 top silk pressing cones 18 of peripheral hardware.By rotary body 2 drive fixed cover 4 and
Regulation set 9 rotation, is resisted against on limited post 10 by drive link 7, drives floating bushing 5 to rotate, owing to drive link 7 can be along limit
The surface of position post 10 swings smoothly, and therefore regulation set 9 drives floating bushing 5 to swing by drive link 7, when grinding screw tap 18,
Can effectively transmit the torsion of rotary body 2, and make the advantage that grinding accuracy is higher.After to be ground, drive case by cylinder 14a
Body 1 moves backward, makes screw tap 18 depart from another thimble, it is simple to screw tap 18 discharging, has and uses conveniently advantage.Logical
Overregulate the size of the elastic force rotating regulation spring 16 of screw 15, it is achieved the regulation to the pressure on top surface of screw tap 18, there is regulation
Convenience and the preferable advantage of using effect.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention
Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory
Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Although the most more employing casing 1, rotary body 2, top 3, fixed cover 4, floating bushing 5, convex shoulder 5a, groove two
5b, floating swinging plate 6, location hole 6a, drive link 7, stage clip 8, regulation set 9, the breach 9a that steps down, groove one 9b, limited post 10, end
The term such as lid 11, motor, power transmission shaft 13, drive mechanism 14, cylinder 14a, regulation screw 15, spring 16, base 17, screw tap 18,
But it is not precluded from using the probability of other term.Use these terms to be only used to more easily and describe and explain the present invention
Essence；It is all contrary with spirit of the present invention for being construed as any additional restriction.
Claims (10)
1. the striking gear of screw-tap threaded mill, including casing (1), is equipped with, in described casing (1), the rotary body that can rotate
(2) middle part of, described rotary body (2) is fixed with top (3), it is characterised in that the outer end of described rotary body (2) is arranged with
Tubular fixed cover (4), the outer end of described fixed cover (4) is fixed with regulation set (9), is provided with in described regulation set (9)
The outer end of floating bushing (5) and described floating bushing (5) is fixed with floating swinging plate (6), the middle part of described floating swinging plate (6)
For the hole, location (6a) passed for screw tap (18) afterbody, the lateral wall of described floating bushing (5) is vertically fixed with drive link
(7), described drive link (7) is connected with described regulation set (9) circumference, described floating bushing (5) and described regulation set (9)
Between be provided with the two ends of stage clip (8) and described stage clip (8) and bear against at described floating bushing (5) and described regulation set
(9) on.
The striking gear of screw-tap threaded the most according to claim 1 mill, it is characterised in that outside described regulation set (9)
Sidewall is provided with the breach of stepping down (9a) embedded for drive link (7), and the sidewall of described drive link (7) is resisted against breach of stepping down (9a)
Medial wall on.
The striking gear of screw-tap threaded the most according to claim 1 mill, it is characterised in that outside described regulation set (9)
Sidewall is provided with for drive link (7) breach of stepping down (9a) that embeds, described regulation set (9) is fixed with two limited posts (10) and
The axis of described limited post (10) be arranged in parallel with the axis of described regulation set (9), the outside of described limited post (10)
Wall protrudes from the medial wall of described breach of stepping down (9a) and the lateral wall of described drive link (7) is all resisted against described in two
Limited post (10) lateral wall on.
4. the striking gear ground according to the screw-tap threaded described in claim 1 or 2 or 3, it is characterised in that described floating bushing
(5) inner lateral wall has convex shoulder (5a), and the outer end of described regulation set (9) is connected end cap (11), described floating bushing
(5) outer end is resisted against the inner of described floating bushing (5) through the end face of described end cap (11) and described convex shoulder (5a)
On face.
5. the striking gear ground according to the screw-tap threaded described in claim 1 or 2 or 3, it is characterised in that described regulation set
(9) inner face is provided with some grooves one (9b), and the inner face of described floating bushing (5) is provided with some grooves two (5b) and described
Groove one (9b) and described groove two (5b) one_to_one corresponding arrange, the two ends of described stage clip (8) are embedded in correspondence respectively
On groove one (9b) and groove two (5b).
The striking gear of screw-tap threaded the most according to claim 1 mill, it is characterised in that the quantity of described stage clip (8)
For 4-10 and it is uniformly distributed centered by the axis of described regulation set (9).
7. the striking gear ground according to the screw-tap threaded described in claim 1 or 2 or 3, it is characterised in that described regulation set
(9) and it is fixedly connected with for screw thread between described fixed cover (4).
8. the striking gear ground according to the screw-tap threaded described in claim 1 or 2 or 3, it is characterised in that this striking gear also wraps
Including the motor (12) that housing is connected on described casing (1), described motor (12) is by power transmission shaft (13) and described rotation
Turn (2) be fixedly connected with.
The striking gear of screw-tap threaded the most according to claim 8 mill, it is characterised in that described casing (1) is arranged on
On one base (17), described base (17) is provided with the drive mechanism (14) that described casing (1) can be driven to move axially,
Described drive mechanism (14) is the cylinder (14a) that cylinder body is connected on described base (17), the work of described cylinder (14a)
Stopper rod is fixedly connected with described casing (1).
The striking gear of screw-tap threaded the most according to claim 8 mill, it is characterised in that described base (17) and institute
Casing (1) support stated is provided with spring pressure guiding mechanism, and described spring pressure guiding mechanism includes being threaded in described
Base (17) on regulation screw (15), the bottom of described casing (1) is provided with mounting groove, and described mounting groove is embedded
Having spring (16), described regulation screw (15) is coaxially disposed with described spring (16) and described regulation screw (15) interior
End is resisted against the outer end of described spring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761030.3A CN106217142B (en) | 2016-08-29 | 2016-08-29 | The striking gear of screw-tap threaded mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761030.3A CN106217142B (en) | 2016-08-29 | 2016-08-29 | The striking gear of screw-tap threaded mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106217142A true CN106217142A (en) | 2016-12-14 |
| CN106217142B CN106217142B (en) | 2019-03-26 |
Family
ID=58071811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610761030.3A Active CN106217142B (en) | 2016-08-29 | 2016-08-29 | The striking gear of screw-tap threaded mill |
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| Country | Link |
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| CN (1) | CN106217142B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083363A (en) * | 2021-11-29 | 2022-02-25 | 河北力准机械制造有限公司 | Screw tap processing machine tool |
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| DE1084167B (en) * | 1958-03-05 | 1960-06-23 | Bohner & Koehle | Driver for cylindrical grinding machines with fixed clamping point |
| SU1204328A1 (en) * | 1981-10-27 | 1986-01-15 | Предприятие П/Я Х-5539 | Driver chuck |
| CN102166674A (en) * | 2011-04-15 | 2011-08-31 | 山东泰丰宝源数控机床附件有限公司 | Clamping device with overload protection screw tap |
| CN103192298A (en) * | 2013-04-03 | 2013-07-10 | 孙效 | Screw tap grinding mechanism |
| CN203636121U (en) * | 2013-11-29 | 2014-06-11 | 无锡威孚中意齿轮有限责任公司 | Dish type gear shaving tool |
| CN104526552A (en) * | 2015-01-05 | 2015-04-22 | 台州北平机床有限公司 | Driving device for cutter external circle machining |
| CN204748316U (en) * | 2015-06-30 | 2015-11-11 | 台州北平机床有限公司 | Optical axis clamping mechanism |
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2016
- 2016-08-29 CN CN201610761030.3A patent/CN106217142B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1084167B (en) * | 1958-03-05 | 1960-06-23 | Bohner & Koehle | Driver for cylindrical grinding machines with fixed clamping point |
| SU1204328A1 (en) * | 1981-10-27 | 1986-01-15 | Предприятие П/Я Х-5539 | Driver chuck |
| CN102166674A (en) * | 2011-04-15 | 2011-08-31 | 山东泰丰宝源数控机床附件有限公司 | Clamping device with overload protection screw tap |
| CN103192298A (en) * | 2013-04-03 | 2013-07-10 | 孙效 | Screw tap grinding mechanism |
| CN203636121U (en) * | 2013-11-29 | 2014-06-11 | 无锡威孚中意齿轮有限责任公司 | Dish type gear shaving tool |
| CN104526552A (en) * | 2015-01-05 | 2015-04-22 | 台州北平机床有限公司 | Driving device for cutter external circle machining |
| CN204748316U (en) * | 2015-06-30 | 2015-11-11 | 台州北平机床有限公司 | Optical axis clamping mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083363A (en) * | 2021-11-29 | 2022-02-25 | 河北力准机械制造有限公司 | Screw tap processing machine tool |
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|---|---|
| CN106217142B (en) | 2019-03-26 |
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Address after: 317502 Tangxia Industrial Zone, Xinhe Town, Wenling City, Taizhou City, Zhejiang Province Patentee after: Beiping machine tool (Zhejiang) Co.,Ltd. Address before: 317502 Tangxia Industrial Zone, Xinhe Town, Wenling City, Taizhou City, Zhejiang Province Patentee before: TAIZHOU BEIPING MACHINE TOOL Co.,Ltd. |