CN106807954A - The processing method and device of castle wheel - Google Patents
The processing method and device of castle wheel Download PDFInfo
- Publication number
- CN106807954A CN106807954A CN201710117596.7A CN201710117596A CN106807954A CN 106807954 A CN106807954 A CN 106807954A CN 201710117596 A CN201710117596 A CN 201710117596A CN 106807954 A CN106807954 A CN 106807954A
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- knife
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- helical teeth
- making
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B11/00—Automatic or semi-automatic turning-machines incorporating equipment for performing other working procedures, e.g. slotting, milling, rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
Present invention is disclosed a kind of processing method of castle wheel, including：CNC numerically controlled lathe programme-control bore cutter cutters, complete the making of circular central endoporus on bar；Square hole knife cutter is rushed in control, and the making of square opening, the circular central endoporus and square opening center overlapping of axles are completed on the basis of the circular central endoporus；Control straight-tooth knife cutter, the making of end face straight-tooth is completed in bar free end；Control flume footpath knife, the making of side annular groove is completed near bar free end side；Control cutoff tool cuts semi-finished product according to specified size；Control helical teeth knife, the making of end face helical teeth is completed in the opposite of the semi-finished product straight-tooth end face.The present invention makes the castle wheel contrate tooth profile structure can be during car base direct " car is out " by designing respective gears cutter, and easy processing technology, while saving process time, improves Product Precision, reduction production cost.
Description
Technical field
The present invention relates to mechanical field, the processing method and its device of a kind of castle wheel are especially related to.
Background technology
Computer digital control machine tool (English abbreviation CNC) is a kind of automated machine tool equipped with program control system.Should
Control system can be processed logically with control coding or other symbolic instruction regulated procedures, and is decoded, so that
Machine tool action simultaneously processes part.Compared with machine tool, Digit Control Machine Tool has following features：Machining accuracy is high, adding with stabilization
Working medium amount；The linkage of multi-coordinate can be carried out, can the complicated part of machining shape；When processing part changes, change is typically only needed to
Numerical control program, can save the Operational preparation time；Lathe high precision, rigidity in itself greatly, may be selected favourable machining dosage, production
Rate is high.Numerically controlled lathe is mainly used for large-scale processing part, and its processing mode includes turning, bore hole, facing etc..Can
Suitable for batch production, the automaticity of production process is higher.But CNC lathe in machining machine components, it is desirable to
The high precision cutting tools matched somebody with somebody, and NC cutting tool can realize fast and accurately automatic loading and unloading, change convenient.
Wrist-watch castle wheel belongs to the crucial parts of comparing in pulling needle system of winding up in wrist-watch, when winding up, vertical wheel and from
Close wheel and be in engagement, when button is rotated, castle wheel drives vertical wheel, vertical wheel rolls up bar axle again through small click wheel and big click wheel
Tight clockwork spring.Ratchet then prevents big click wheel from reversing.During pulling needle, button is pulled out, draw shelves to be rotated on drawing shelves axle and promote trip(ping) lever, made
Castle wheel is disengaged with vertical wheel, is engaged with transmission wheel.Just transmission wheel drives hour wheel and minute wheel by back gear now to rotate button, reaches
The purpose of correction hour hands and minute hand.Two end faces of wrist-watch castle wheel have the difference of straight-tooth and helical teeth, conventional wrist-watch castle wheel
Processing be all made of first pass through car base, again by gear hobbing, and need the specific hobboing cutter to carry out gear hobbing, and gear hobbing need to do twice work
Make, processing technology is complex and relatively costly.Prior art can't be realized once-formingly raw using CNC numerically controlled lathes
Produce wrist-watch castle wheel.
Therefore, prior art could be improved.
The content of the invention
The main object of the present invention be provide using CNC numerically controlled lathes it is once-forming produce the processing side of wrist-watch castle wheel
Method, it is intended to solve in existing wrist-watch castle wheel processing technology that end face straight-tooth and helical teeth can not the direct machine-shapings during car base
Problem.
The present invention proposes a kind of processing method of castle wheel, including：
CNC numerically controlled lathe keyhole knife cutters, complete the making of circular central endoporus on bar；
Square hole knife cutter is rushed in control, and the making of square opening, the circle are completed on the basis of the circular central endoporus
Central bore and square opening center overlapping of axles；
Control straight-tooth knife cutter, the making of end face straight-tooth is completed in bar free end；
Control flume footpath knife, the making of side annular groove is completed near bar free end side；
Control cutoff tool cuts semi-finished product according to specified size；
Control helical teeth knife cutter, the making of end face helical teeth is completed in the opposite of the semi-finished product straight-tooth end face.
Preferably, centre bore positioning, keyhole knife knife are carried out in CNC numerically controlled lathes program control center drill tool
Tool, before completing the making step of circular inner hole, also includes：
Control centre's drill tool carries out centre bore positioning to bar, and completes the making of straight-tooth end end face inner bore chamfering.
Preferably, in the control helical teeth knife, complete after the making step of end face helical teeth, also include：
Control back side inner bore chamfering knife cutter, completes the making of helical teeth end end face inner bore chamfering.
Preferably, in control flume footpath knife, the making of side annular groove is completed near bar free end side
Before step, also including sweeping external diameter knife cutter before control, bar rugosity is carried out rough turn to remove unnecessary bar.
Preferably, in control flume footpath knife, the making of side annular groove is completed near bar free end side
After step, also include：External diameter knife cutter deburring is swept before control, smart car treatment is carried out on the basis of rough turn.
The present invention also provides a kind of processing unit (plant) of castle wheel, including：
Central bore makes module, for CNC numerically controlled lathe keyhole knife cutters, is completed in circular central on bar
The making in hole；
Square opening makes module, and rush square hole knife cutter for control completes square on the basis of the circular central endoporus
The making in hole, the circular central endoporus and square opening center overlapping of axles；
End face straight-tooth makes module, for controlling straight-tooth knife cutter, the making of end face straight-tooth is completed in bar free end；
Side annular groove makes module, for control flume footpath knife, side ring is completed near bar free end side
The making of connected in star；
Cutting module, for controlling cutoff tool to cut semi-finished product according to specified size；
End face helical teeth makes module, for controlling helical teeth knife cutter, is completed in the opposite of the semi-finished product straight-tooth end face
The making of end face helical teeth.
Preferably, the processing unit (plant) of the castle wheel also includes that straight-tooth end end face inner bore chamfering makes module, for controlling
Center drill cutter carries out centre bore positioning to bar, and completes the making of straight-tooth end end face inner bore chamfering.
Preferably, the processing unit (plant) of the castle wheel also includes that helical teeth end end face inner bore chamfering makes module, for controlling
Back side inner bore chamfering knife cutter, completes the making of helical teeth end end face inner bore chamfering.
Preferably, the straight-tooth knife cutter includes integrally formed straight-tooth blade and straight-tooth handle of a knife, and the straight-tooth blade is
Arc-shaped, straight-tooth centre bore part of the straight-tooth handle of a knife with ring-type；The straight-tooth knife blade material is white steel, straight-tooth blade
Thickness is 0.2mm, and the straight-tooth knife point of a knife shape is identical with the shape of the straight-tooth.
Preferably, the helical teeth knife cutter includes integrally formed helical teeth blade and helical teeth handle of a knife, the helical teeth blade number
Amount at least two, is evenly distributed on around helical teeth handle of a knife；Helical teeth centre bore part of the helical teeth handle of a knife with ring-type；Institute
State helical teeth knife point of a knife shape identical with the shape of helical teeth, helical teeth knife blade material is white steel, helical teeth blade thickness is 0.2mm.
Advantageous Effects of the present invention：Using CNC numerically controlled lathes, the once-forming ground during car base directly adds the present invention
Work is molded wrist-watch castle wheel, and processing technology is simple.The cutter that the present invention is matched by design and castle wheel contrate tooth profile structure,
And the processing control procedure of Binding change CNC numerically controlled lathes so that castle wheel contrate tooth profile structure can be during car base directly
" car is out ", the gear hobbing without carrying out original technique again is operated, and not only easy processing technology simultaneously but also saves the time；Together
When due to the control of CNC numerically controlled lathes it is accurate, the lot stability of castle wheel product is high, improves the qualification rate of product, reduces life
Produce cost.
Brief description of the drawings
A kind of schematic flow sheet of the processing method of castle wheel in Fig. 1 one embodiment of the invention；
A kind of system flow schematic diagram of the processing technology of castle wheel in Fig. 2 one embodiment of the invention；
Castle wheel processing unit (plant) structural representation in Fig. 3 one embodiment of the invention；
Straight-tooth knife cutter structure schematic diagram in Fig. 4 one embodiment of the invention；
Helical teeth knife cutter structure schematic diagram in Fig. 5 one embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Reference picture 1, the embodiment of the present invention proposes a kind of processing method of castle wheel, including：
S1：CNC numerically controlled lathe keyhole knife cutters, complete the making of circular central endoporus on bar；
S2：Square hole knife cutter is rushed in control, and the making of square opening, the circle are completed on the basis of the circular central endoporus
Shape central bore and square opening center overlapping of axles；
S3：Control straight-tooth knife cutter, the making of end face straight-tooth is completed in bar free end；
S4：Control flume footpath knife, the making of side annular groove is completed near bar free end side；
S5：Control cutoff tool cuts semi-finished product according to specified size；
S6：Control helical teeth knife cutter, the making of end face helical teeth is completed in the opposite of the semi-finished product straight-tooth end face.
The cutter that the embodiment of the present invention is matched by design and castle wheel contrate tooth profile structure, and Binding change CNC numbers
Control lathe processing control procedure so that castle wheel contrate tooth profile structure can during car base direct " car is out ", without
To carry out the gear hobbing operation of original technique again, not only easy processing technology simultaneously but also saves the time.
The embodiment of the present invention uses CNC lathe in machining wrist-watch castle wheels, and the processing raw material for being used are Y100Pb,
Easy car iron staff material, the Y100pb is that a kind of leaded height rises carbon easy-cutting steel, be accuracy of manufacture watch part important materials it
In one, Y100Pb finished steel, lead particle is tiny, is evenly distributed, and its microscopic structure is 3-4 grades of granular pearlite, with good
Cutting ability.
The embodiment of the present invention uses above-mentioned castle wheel processing method, by the wrist-watch castle wheel of CNC lathe in machining
Structure, as shown in Figure 3.The processing process of wrist-watch castle wheel is followed successively by CNC numerically controlled lathe program controls in the embodiment of the present invention
Bore cutter cutter processed, completes the making of circular central endoporus on bar, and described circular central diameter of bore scope is：0.65
To 0.664mm；Then control main shaft is stopped, and on the basis of above-mentioned circular central endoporus, it is complete that square hole knife cutter is rushed in control
The making in squarely hole, the circular central endoporus and square opening center overlapping of axles, the square hole edge length scope is
0.61 to 0.63mm, the central bore is finally processed to square opening, so that the square tenon with arbor coordinates；Programme-control straight-tooth
Knife cutter, the making of end face straight-tooth is completed in bar free end, and the end face straight-tooth is complete under CNC numerically controlled lathes C-axis scale division 13
Into making；Programme-control groove footpath knife, the making of side annular groove, the side ring are completed near bar free end side
Connected in star groove width 0.64mm, groove depth 0.5mm to 0.506mm；Programme-control cutoff tool cuts semi-finished product according to specified size, control
Helical teeth knife cutter processed, the making of end face helical teeth is completed in the opposite of the semi-finished product straight-tooth end face, and the end face helical teeth is in CNC
Numerically controlled lathe back of the body axle indexes 10 times and completes to make.
The embodiment of the present invention is equipped with straight-tooth knife cutter, helical teeth knife cutter by being designed on CNC numerically controlled lathes, with reference to processing
The original cutter of wrist-watch castle wheel, by programme-control CNC numerically controlled lathes, wrist-watch is processed during car base one-step shaping
Castle wheel.The wrist-watch castle wheel batch uniformity of embodiment of the present invention processing is high, improves the qualification rate of product, improves effect
Rate, while reducing production cost.
Reference picture 2, further, in the CNC numerically controlled lathes keyhole knife cutter, completes circular central on bar
Before the making step of endoporus, also including step S10：Control centre's drill tool carries out centre bore positioning to bar, and completes straight
The making of increment end face inner bore chamfering, the straight-tooth end end face inner bore chamfering is 80 °, with wrist-watch arbor convenient for assembly.
Further, in the control helical teeth knife, the making of end face helical teeth is completed in the opposite of half product straight-tooth end face
After step, also including step S20：Control back side inner bore chamfering knife cutter, completes the making of helical teeth end end face inner bore chamfering, institute
It is 90 ° to state helical teeth end end face inner bore chamfering, facilitates the mechanical movement of wrist-watch arbor.
Further, in control flume footpath knife, the system of side annular groove is completed near bar free end side
Before making step, also including step S30：External diameter knife cutter is swept before control, bar rugosity is carried out rough turn to remove unnecessary bar.
It is described it is rough turn control overall diameter be 1.73mm.
Further, in control flume footpath knife, the system of side annular groove is completed near bar free end side
After making step, also including step S40：External diameter knife cutter deburring is swept before control, smart car treatment is carried out on the basis of rough turn.Institute
Smart car external diametrical extent is stated for 1.711mm to 1.73mm.
Rough turn is to remove most blank allowance.Because the reason for heat processing technique, often leave more remaining
Amount, if being machined directly to drawing size, meeting waste product caused by the reasons such as thermal stress, workpiece thermal deformation.So workpiece blank has
During larger surplus, the surface surplus meeting error after roughing link roughing will be arranged larger, but in order to ensure during finishing
There is the allowance of stabilization, to reach the uniformity of final products, so smart car step is had after rough turn operation, to meet part
The requirement of precision.Further to meet the demand of element precision, after part completion of processing, under CNC numerically controlled lathe programme-control,
The flash produced by processing helical teeth is removed using back side helical teeth deburring cutter cutter.
Further, the end face straight-tooth is shaped as tooth pitch 0.414mm between parabolic shape, the straight-tooth, and tooth is high
0.332mm。
The straight-tooth end face of wrist-watch castle wheel is, to coordinate the structure of transmission wheel, button to be pulled out during pulling needle, draws shelves drawing shelves axle
Upper rotation simultaneously promotes trip(ping) lever, castle wheel is disengaged with vertical wheel, is engaged with transmission wheel.Now rotate button just transmission wheel by across
Wheel drives hour wheel and minute wheel, reaches the purpose of correction hour hands and minute hand.
Further, the helical teeth is made up of the spiral relative to castle wheel evagination and short arc line, the spiral with
The angle angle of short arc line is 65 ° of ± 30', and the short arc line is 1 ° to 4 ° with the angular range of vertical direction.
The helical teeth end face of wrist-watch castle wheel is that the helical teeth of wrist-watch castle wheel will be same with vertical wheel to coordinate the structure of vertical wheel
Tooth form connection.When wrist-watch winds up, vertical wheel and castle wheel need to be in engagement, and when button is rotated, castle wheel drives vertical wheel,
Vertical wheel makes bar axle roll tightly clockwork spring again through small click wheel and big click wheel.
Reference picture 3, the embodiment of the present invention additionally provides a kind of processing unit (plant) of castle wheel, including：
Central bore makes module 1, for CNC numerically controlled lathe keyhole knife cutters, circular central is completed on bar
The making of endoporus；
Square opening makes module 2, for controlling to rush square hole knife cutter completion side on the basis of the circular central endoporus
The making in shape hole, the circular central endoporus and square opening center overlapping of axles；
End face straight-tooth makes module 3, for controlling straight-tooth knife cutter, the making of end face straight-tooth is completed in bar free end；
Side annular groove makes module 4, for control flume footpath knife, side ring is completed near bar free end side
The making of connected in star；
Cutting module 5, for controlling cutoff tool to cut semi-finished product according to specified size；
End face helical teeth makes module 6, for controlling helical teeth knife, end face helical teeth is completed in the opposite of semi-finished product straight-tooth end face
Making.
Further, the processing unit (plant) of the castle wheel also includes that straight-tooth end end face inner bore chamfering makes module 7, for controlling
Center drill cutter processed carries out centre bore positioning to bar, and completes the making of straight-tooth end end face inner bore chamfering.
Further, the processing unit (plant) of the castle wheel also includes that helical teeth end end face inner bore chamfering makes module 8, for controlling
Inner bore chamfering knife cutter in the back side processed, completes the making of helical teeth end end face inner bore chamfering.
Further as shown in figure 4, the straight-tooth knife cutter includes integrally formed straight-tooth blade 10 and straight-tooth handle of a knife 11,
The straight-tooth blade 10 is arc-shaped, straight-tooth centre bore part 12 of the straight-tooth handle of a knife 11 with ring-type；The straight-tooth knife knife
The material of piece 10 is white steel, and the thickness of straight-tooth blade 10 is 0.2mm, and the straight-tooth knife point of a knife shape is identical with the shape of the straight-tooth.
The structure design of straight-tooth knife cutter in the embodiment of the present invention, meets CNC numerically controlled lathe controls and prepares castle wheel straight-tooth
The need for, according to straight-tooth shape design straight-tooth knife cutter structure, the straight-tooth blade 10, straight-tooth handle of a knife 11 by white steel one into
Type, straight-tooth point of a knife shape is identical with straight-tooth shape, and the straight-tooth knife is fixed on knife bar by the straight-tooth centre bore part 12,
In order to CNC numerically controlled lathe program control operations.
It is described further as shown in figure 5, the helical teeth knife includes integrally formed helical teeth blade 20 and helical teeth handle of a knife 21
The quantity at least two of helical teeth blade 20, is evenly distributed on around helical teeth handle of a knife 21；The helical teeth handle of a knife 21 carries ring-type
Helical teeth centre bore part 22；The helical teeth knife point of a knife shape is identical with the shape of helical teeth, and the material of helical teeth knife blade 20 is white steel, tiltedly
The thickness of teeth cutter blade 20 is 0.2mm.
The structure design of helical teeth knife in the embodiment of the present invention, meets the need that CNC numerically controlled lathe controls prepare castle wheel helical teeth
Will, helical teeth knife cutter structure is designed according to helical teeth shape, the helical teeth blade 20, helical teeth handle of a knife 21 are integrally formed by Bai Gang, knife
Pointed shape is identical with helical teeth shape, and the helical teeth knife is fixed on knife bar by the helical teeth centre bore part 22, in order to CNC
Numerically controlled lathe program control operations.
In the Cutting Process system be made up of lathe, cutter and workpiece, cutter is a key factor.Machining is produced
Quality of the length of rate and cutter life, the height of processing cost, machining accuracy and machined surface quality etc., largely
Depending on the reasonable selection of the factors such as tool type, cutter material, cutter structure.The knife of straight-tooth knife described in the embodiment of the present invention
The need for tool, helical teeth knife cutter can preferably meet CNC numerically controlled lathes control processing castle wheel end face straight-tooth, end face helical teeth, match somebody with somebody
Close CNC numerically controlled lathes accurately control program so that the processing technology of wrist-watch castle wheel tends to all automation integrated preparations, right
Had a significant effect in the improvement of the processing technology of wrist-watch castle wheel.
Embodiment of the present invention Advantageous Effects：The embodiment of the present invention using CNC numerically controlled lathes during car base once
The direct machine-shaping wrist-watch castle wheel in shaping ground, processing technology is simple.The embodiment of the present invention is by design and castle wheel end-tooth
The cutter that shape structure matches, and Binding change CNC numerically controlled lathes processing control procedure so that castle wheel contrate tooth profile structure
Can be during car base direct " car is out ", the gear hobbing without carrying out original technique again is operated, both easy processing technology
Save the time again simultaneously；Simultaneously because the control of CNC numerically controlled lathes is accurate, the lot stability of castle wheel product is high, improves
The qualification rate of product, reduces production cost.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the invention, every utilization is not thereby limited
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of processing method of castle wheel, it is characterised in that including：
CNC numerically controlled lathe keyhole knife cutters, complete the making of circular central endoporus on bar；
Square hole knife cutter is rushed in control, and the making of square opening, the circular central are completed on the basis of the circular central endoporus
Endoporus and square opening center overlapping of axles；
Control straight-tooth knife cutter, the making of end face straight-tooth is completed in bar free end；
Control flume footpath knife, the making of side annular groove is completed near bar free end side；
Control cutoff tool cuts semi-finished product according to specified size；
Control helical teeth knife cutter, the making of end face helical teeth is completed in the opposite of the semi-finished product straight-tooth end face.
2. the processing method of castle wheel according to claim 1, it is characterised in that control to bore in the CNC numerically controlled lathes
Hole knife cutter, before the making step for completing circular central endoporus on bar, also includes：
Control centre's drill tool carries out centre bore positioning to bar, and completes the making of straight-tooth end end face inner bore chamfering.
3. the processing method of castle wheel according to claim 1, it is characterised in that in the control helical teeth knife, produced half
The opposite of product straight-tooth end face is completed after the making step of end face helical teeth, is also included：
Control back side inner bore chamfering knife cutter, completes the making of helical teeth end end face inner bore chamfering.
4. the processing method of castle wheel according to claim 1, it is characterised in that in control flume footpath knife, be close to
Before bar free end side completes the making step of side annular groove, also include：
External diameter knife cutter is swept before control, bar rugosity is carried out rough turn to remove unnecessary bar.
5. the processing method of castle wheel according to claim 4, it is characterised in that in control flume footpath knife, be close to
Bar free end side is completed after the making step of side annular groove, is also included：
External diameter knife cutter deburring is swept before control, smart car treatment is carried out on the basis of rough turn.
6. a kind of processing unit (plant) of castle wheel, it is characterised in that including：
Central bore makes module, for CNC numerically controlled lathe keyhole knife cutters, circular central endoporus is completed on bar
Make；
Square opening makes module, and rush square hole knife cutter for control completes square opening on the basis of the circular central endoporus
Making, the circular central endoporus and square opening center overlapping of axles；
End face straight-tooth makes module, for controlling straight-tooth knife cutter, the making of end face straight-tooth is completed in bar free end；
Side annular groove makes module, recessed side annular is completed near bar free end side for control flume footpath knife
The making of groove；
Cutting module, for controlling cutoff tool to cut half product according to specified size；
End face helical teeth makes module, for controlling helical teeth knife, the system of end face helical teeth is completed in the opposite of half product straight-tooth end face
Make.
7. the processing unit (plant) of castle wheel according to claim 6, it is characterised in that also including straight-tooth end end face inner bore chamfering
Module is made, centre bore positioning is carried out to bar for control centre's drill tool, and complete the system of straight-tooth end end face inner bore chamfering
Make.
8. the processing unit (plant) of castle wheel according to claim 6, it is characterised in that also including helical teeth end end face inner bore chamfering
Module is made, for controlling back side inner bore chamfering knife cutter, the making of helical teeth end end face inner bore chamfering is completed.
9. the processing unit (plant) of castle wheel according to claim 6, it is characterised in that the straight-tooth knife cutter include one into
The straight-tooth blade and straight-tooth handle of a knife of type, the straight-tooth blade are arc-shaped, straight-tooth centre bore of the straight-tooth handle of a knife with ring-type
Part；The straight-tooth knife blade material is white steel, and straight-tooth blade thickness is 0.2mm, and the straight-tooth knife point of a knife shape is straight with described
The shape of tooth is identical.
10. the processing unit (plant) of castle wheel according to claim 6, it is characterised in that the helical teeth knife cutter includes one
The helical teeth blade and helical teeth handle of a knife of shaping, the helical teeth knife number at least two are evenly distributed on around helical teeth handle of a knife；
Helical teeth centre bore part of the helical teeth handle of a knife with ring-type；The helical teeth knife point of a knife shape is identical with the shape of helical teeth, helical teeth
Knife blade material is white steel, and helical teeth blade thickness is 0.2mm.
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| CN201710117596.7A CN106807954B (en) | 2017-03-01 | 2017-03-01 | The processing method and device of castle wheel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759788A (en) * | 2019-01-23 | 2019-05-17 | 桐乡市中杭五金配件厂 | Spinning machine mould head seals ring processing method |
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| CN205057575U (en) * | 2015-10-15 | 2016-03-02 | 翟勇波 | Digit control machine tool wrist -watch processing structure |
| CN205650811U (en) * | 2016-03-11 | 2016-10-19 | 鹰潭市佳鑫精密元件有限公司 | A lathe for microelement processing |
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| CN109759788A (en) * | 2019-01-23 | 2019-05-17 | 桐乡市中杭五金配件厂 | Spinning machine mould head seals ring processing method |
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