CN104289884A - Arc cutting edge machining tool and method of arc cutting edge machining tool - Google Patents
Arc cutting edge machining tool and method of arc cutting edge machining tool Download PDFInfo
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- CN104289884A CN104289884A CN201410494343.8A CN201410494343A CN104289884A CN 104289884 A CN104289884 A CN 104289884A CN 201410494343 A CN201410494343 A CN 201410494343A CN 104289884 A CN104289884 A CN 104289884A
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- cutting edge
- circular arc
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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
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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Abstract
The invention provides a method used for machining an arc cutting edge machining tool. The method includes the following steps: (1) cutting the arc cutting edge machining tool to enable an using end opening of the arc cutting edge machining tool to be provided with an arc groove in a machined mode; (2) grinding the arc groove; (3) conducting conventional heat processing on the arc cutting edge machining tool; (4) after heat processing is carried out, grinding the arc groove again. The invention further provides the corresponding arc cutting edge machining tool and a corresponding arc cutting edge machining method. According to the method for machining the arc cutting edge machining tool and the arc cutting edge machining tool and method, in the whole machining process, the abrasion loss of the arc cutting edge machining tool is small and can be ignored, and the service life of the arc cutting edge machining tool is long; the size coincidence and the stability of products are guaranteed; the arc cutting edge machining cost is effectively reduced, the arc cutting edge machining efficiency is effectively improved, the production period is shortened, and the product quality of structural members is improved.
Description
Technical field
The present invention relates to cold extrusion processing, particularly, relate to a kind of circular arc cutting edge process tool and method thereof.
Background technology
Cutting edge is as the important component of valve and steel material structural member sealing pair, and its contour structures, form and position tolerance, surface roughness are the important indicators affecting valve seal performance.And the phenomenon that cutting edge impression does not overlap has appearred in existing cutting edge lack of standardization after repeated work, thus cause widening of contact surface, finally have impact on the sealing property of whole product.
It is not smooth that existing small-bore circular arc cutting edge cutter in use often occurs adding chip removal in man-hour to the small-bore part of hard material, and cutting edge produces and bursts apart, and quick abrasion, the problems such as cutter life is short.Meanwhile, this type of processing mode process-cycle is long, efficiency is low, personnel requirement is high.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of circular arc cutting edge process tool and method thereof.
The processing method for circular arc cutting edge process tool provided according to an aspect of the present invention, comprises the steps:
Step 1: carry out machining to circular arc cutting edge process tool, makes the use port of circular arc cutting edge process tool process arc groove;
Step 2: arc groove is ground;
Step 3: circular arc cutting edge process tool is heat-treated;
Step 4: after heat treatment, again right arc groove grinds.
Preferably, described circular arc cutting edge process tool adopts high-speed tool steel to make.
Preferably, the radius of arc groove is less than 0.2mm in step 1.
Preferably, after grinding arc groove in step 2, the roughness of arc groove is more than or equal to 0.2 μm.
Preferably, after carrying out normative heat treatment to circular arc cutting edge cutter in step 3, circular arc cutting edge cutter hardness is made to reach HRC60 ~ 65, in step 4 after heat treatment, after again right arc groove grinds, the roughness of arc groove is more than or equal to 0.2 μm.
The circular arc cutting edge process tool provided according to another aspect of the present invention, in being processed by described circular arc cutting edge, the processing method of cutter processes.
Preferably, have the arc groove that a radius is less than R0.2mm at the cutting edge place of the minimum-value aperture ￠ 1mm of circular arc cutting edge process tool, wherein, ￠ represents cutting edge diameter, and R represents the radius of arc groove.
Preferably, comprise the steps:
Step 1: beating of circular arc cutting edge process tool is adjusted in school, ensures that structural member to be processed is coaxial with the arc groove of circular arc cutting edge process tool;
Step 2: directly structural member to be processed and circular arc cutting edge process tool are carried out revolving extrusion process without grinding step and become circular arc cutting edge;
Step 3: polishing is carried out to circular arc cutting edge.
Preferably, after circular arc cutting edge is carried out polishing, the surface roughness of circular arc cutting edge reaches and is more than or equal to Ra0.2, wherein, and Ra presentation surface roughness.
Preferably, described step 2 comprises the steps:
Step 2.1: smear lubricant between circular arc cutting edge process tool and structural member to be processed, ensures that in process, circular arc cutting edge process tool and structural member surface to be processed are without sticking together phenomenon;
Step 2.2: structural member to be processed and circular arc cutting edge process tool are carried out revolving extrusion process and becomes circular arc cutting edge.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention whole process to circular arc cutting edge process tool wear extent comparatively I ignore, circular arc cutting edge process tool long service life;
2, the present invention ensures product size uniformity and stability;
3, grinding step when the present invention cancels converted products, effectively raises circular arc cutting edge processing cost and efficiency, achieves to shorten the production cycle, improve structural member product quality.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of circular arc cutting edge process tool in the present invention;
Fig. 2 is the flow chart of steps for the processing method of circular arc cutting edge process tool in the present invention;
Fig. 3 is the flow chart of steps of circular arc cutting edge processing method in the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
In the present embodiment, the processing method for circular arc cutting edge process tool provided by the invention, comprises the steps:
Step 1: machining is carried out to circular arc cutting edge process tool, the use port of circular arc cutting edge process tool is made to process arc groove, be specially, lathe (C616A-1) carries out metal cutting process to circular arc cutting edge process tool, makes the use port of circular arc cutting edge process tool process the arc groove that is less than R0.2;
Step 2: grind arc groove, is specially, and uses the arc groove being less than R0.2 of port to grind, edge surface roughness is reached and is not less than Ra0.2 circular arc cutting edge process tool;
Step 3: normative heat treatment is carried out to circular arc cutting edge cutter;
Step 4: after heat treatment, again right arc groove grinds.
Wherein, described circular arc cutting edge process tool adopts high-speed tool steel to make, and usually selects Wu18Cr4V.The radius of arc groove is less than 0.2mm in step 1.After grinding arc groove in step 2, the roughness of arc groove is more than or equal to 0.2 μm.After carrying out normative heat treatment to circular arc cutting edge cutter in step 3, circular arc cutting edge cutter hardness is made to reach HRC60 ~ 65, in step 4 after heat treatment, after again right arc groove grinds, the roughness of arc groove is more than or equal to 0.2 μm.
Circular arc cutting edge process tool provided by the invention, in being processed by described circular arc cutting edge, the processing method of cutter processes.The arc groove that a radius is less than R0.2mm is had at the cutting edge place of the minimum-value aperture ￠ 1mm of circular arc cutting edge process tool.
Circular arc cutting edge processing method provided by the invention, comprises the steps:
Step 1: beating of circular arc cutting edge process tool is adjusted in school, ensure that structural member to be processed is coaxial with the arc groove of circular arc cutting edge process tool, be specially, circular arc cutting edge process tool after heat treatment is loaded on the tailstock of the plant equipment of automobile-used lathe, and school adjusts it to beat, ensure that the cutting edge of structural member to be processed is coaxial with the arc groove of circular arc cutting edge process tool;
Step 2: smear lubricant between circular arc cutting edge process tool and structural member to be processed, ensure that in process, circular arc cutting edge process tool and structural member surface to be processed are without sticking together phenomenon, structural member to be processed and circular arc cutting edge process tool are carried out revolving extrusion process and becomes circular arc cutting edge, be specially, the structural member to be processed be loaded on the plant equipment main shaft of automobile-used lathe and circular arc cutting edge process tool are carried out revolving extrusion process, lubricant is smeared between circular arc cutting edge process tool and structural member to be processed, ensure that in process, piece surface is without sticking together phenomenon, reduce the coefficient of friction of part and circular arc cutting edge process tool, make circular arc cutting edge moulding,
Step 3: polishing is carried out to circular arc cutting edge.After circular arc cutting edge is carried out polishing, the surface roughness of circular arc cutting edge reaches and is not less than Ra0.2.
Circular arc cutting edge adopts stainless steel, magnetically soft alloy processes.In the process of converted products cutting edge, in order to ensure the form and position tolerance of part, especially perpendicularity, can first roughing circular arc cutting edge profile to the plane of width 0.18 millimeter.Be low speed at lathe rotating speed, feed velocity is 0.05 millimeter/grade, and feed total amount is 0.1 millimeter, and withdrawing is finally coated with polishing agent with wool felt, carries out polishing to machining cutting edge.
Circular arc cutting edge process tool in the present invention also known as extruded rod, as specific purpose tool, often criticize structural member cutting edge add need have man-hour head and the tail try knife, head and the tail examination knife dissect after through measuring room, its profile cutting edge profile and size are measured, can put in storage after qualified.Before batch machining, initial workpiece processing is carried out to part, after the assay was approved, namely can be mass.This batch products only need observe cutting edge end face meet the requirements under 30 power microscopes.
In sum, this invention ensures that the dimensional uniformity of a batch products cutting edge, whole process is for revolving extrusion process, and edge width is only R0.2 millimeter, and minimum-value aperture is ￠ 1 millimeter.Process is less for frock dedicated tool (extruded rod) wear extent, compared with normal cutter life, it has longer service life, and processing parts precision is high, Blade dimensions uniformity is good, can meet the requirement of constant product quality.Reduce the product rejection rate because tool wear causes, and the present invention may extend to minimum latus rectum be ￠ material cutting edge more than 1 millimeter processing.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. for a processing method for circular arc cutting edge process tool, it is characterized in that, comprise the steps:
Step 1: carry out machining to circular arc cutting edge process tool, makes the use port of circular arc cutting edge process tool process arc groove;
Step 2: arc groove is ground;
Step 3: circular arc cutting edge process tool is heat-treated;
Step 4: after heat treatment, again right arc groove grinds.
2. the processing method for cutter in the processing of circular arc cutting edge according to claim 1, it is characterized in that, described circular arc cutting edge process tool adopts high-speed tool steel to make.
3. the processing method for cutter in the processing of circular arc cutting edge according to claim 1, it is characterized in that, the radius of arc groove is less than 0.2mm in step 1.
4. the processing method for cutter in the processing of circular arc cutting edge according to claim 1, it is characterized in that, after grinding arc groove in step 2, the roughness of arc groove is more than or equal to 0.2 μm.
5. the processing method for cutter in the processing of circular arc cutting edge according to claim 1 or 4, it is characterized in that, after in step 3 normative heat treatment being carried out to circular arc cutting edge cutter, circular arc cutting edge cutter hardness is made to reach HRC60 ~ 65, in step 4 after heat treatment, after again right arc groove grinds, the roughness of arc groove is more than or equal to 0.2 μm.
6. a circular arc cutting edge process tool, is characterized in that, in being processed by circular arc cutting edge described in any one of claim 1 to 5, the processing method of cutter processes.
7. circular arc cutting edge process tool according to claim 6, it is characterized in that, have the arc groove that a radius is less than R0.2mm at the cutting edge place of the minimum-value aperture ￠ 1mm of circular arc cutting edge process tool, wherein, ￠ represents cutting edge diameter, and R represents the radius of arc groove.
8. adopt the circular arc cutting edge process tool described in claim 6 or 7 to carry out a circular arc cutting edge processing method, it is characterized in that, comprise the steps:
Step 1: beating of circular arc cutting edge process tool is adjusted in school, ensures that structural member to be processed is coaxial with the arc groove of circular arc cutting edge process tool;
Step 2: directly structural member to be processed and circular arc cutting edge process tool are carried out revolving extrusion process without grinding step and become circular arc cutting edge;
Step 3: polishing is carried out to circular arc cutting edge.
9. circular arc cutting edge processing method according to claim 8, is characterized in that, after circular arc cutting edge is carried out polishing, the surface roughness of circular arc cutting edge reaches and is more than or equal to Ra0.2, wherein, and Ra presentation surface roughness.
10. circular arc cutting edge processing method according to claim 8, it is characterized in that, described step 2 comprises the steps:
Step 2.1: smear lubricant between circular arc cutting edge process tool and structural member to be processed, ensures that in process, circular arc cutting edge process tool and structural member surface to be processed are without sticking together phenomenon;
Step 2.2: structural member to be processed and circular arc cutting edge process tool are carried out revolving extrusion process and becomes circular arc cutting edge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410494343.8A CN104289884A (en) | 2014-09-24 | 2014-09-24 | Arc cutting edge machining tool and method of arc cutting edge machining tool |
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| CN201410494343.8A CN104289884A (en) | 2014-09-24 | 2014-09-24 | Arc cutting edge machining tool and method of arc cutting edge machining tool |
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| CN104289884A true CN104289884A (en) | 2015-01-21 |
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| CN201410494343.8A Pending CN104289884A (en) | 2014-09-24 | 2014-09-24 | Arc cutting edge machining tool and method of arc cutting edge machining tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216975A (en) * | 2016-08-19 | 2016-12-14 | 杭州健培科技有限公司 | A kind of manufacture method of right angle arcuate blade |
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| JPH09234603A (en) * | 1996-02-29 | 1997-09-09 | Seiko Epson Corp | Cutting tool and cutting machine using it |
| CN201988741U (en) * | 2010-12-24 | 2011-09-28 | 湖南江滨机器（集团）有限责任公司 | Tool holder system and cutting tool |
| CN102554566A (en) * | 2011-12-27 | 2012-07-11 | 上海空间推进研究所 | Rotating extrusion processing method for arc cutting edge with width less than R0.2 |
| CN202621949U (en) * | 2011-12-27 | 2012-12-26 | 上海空间推进研究所 | Cutter having cutting edge with less than R0.2 arc |
| CN203197271U (en) * | 2013-01-10 | 2013-09-18 | 郑州市钻石精密制造有限公司 | Boring blade used for machining conduit hole of car |
| CN103624278A (en) * | 2012-08-21 | 2014-03-12 | 湖北三江航天红阳机电有限公司 | Novel cutter for machining boss inner circle and boss outer circle |
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2014
- 2014-09-24 CN CN201410494343.8A patent/CN104289884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09234603A (en) * | 1996-02-29 | 1997-09-09 | Seiko Epson Corp | Cutting tool and cutting machine using it |
| CN201988741U (en) * | 2010-12-24 | 2011-09-28 | 湖南江滨机器（集团）有限责任公司 | Tool holder system and cutting tool |
| CN102554566A (en) * | 2011-12-27 | 2012-07-11 | 上海空间推进研究所 | Rotating extrusion processing method for arc cutting edge with width less than R0.2 |
| CN202621949U (en) * | 2011-12-27 | 2012-12-26 | 上海空间推进研究所 | Cutter having cutting edge with less than R0.2 arc |
| CN103624278A (en) * | 2012-08-21 | 2014-03-12 | 湖北三江航天红阳机电有限公司 | Novel cutter for machining boss inner circle and boss outer circle |
| CN203197271U (en) * | 2013-01-10 | 2013-09-18 | 郑州市钻石精密制造有限公司 | Boring blade used for machining conduit hole of car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216975A (en) * | 2016-08-19 | 2016-12-14 | 杭州健培科技有限公司 | A kind of manufacture method of right angle arcuate blade |
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Application publication date: 20150121 |
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