CN108838630A - A kind of globoid cam processing technology - Google Patents
A kind of globoid cam processing technology Download PDFInfo
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- CN108838630A CN108838630A CN201810912415.4A CN201810912415A CN108838630A CN 108838630 A CN108838630 A CN 108838630A CN 201810912415 A CN201810912415 A CN 201810912415A CN 108838630 A CN108838630 A CN 108838630A
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- processing technology
- milling
- globoid cam
- cam processing
- spiral
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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
The invention discloses a kind of globoid cam processing technologys, it is related to globoid cam processing technique field, using following processing step, blanking is simultaneously heat-treated-milling arc tip circle-and rough mills-half finish-milling-infiltration charcoal, quenching treatment-finish-milling-polishing-inspection, selects suitable tool path pattern, controls the amount of feed of radial direction and depth, improve machining accuracy, and metal loss rate is lower, processing step simple possible, reduces production cost.
Description
Technical field
The present invention relates to globoid cam processing technique field, in particular to a kind of globoid cam processing technology.
Background technique
The movement of various complexity may be implemented in cam mechanism, and has that structure is simple, easily designed, the service life is long, stable
The features such as, it is main driving and the control mechanism for realizing mechanization and automation in engineering, is widely used in the hair of ship, automobile etc.
Motivation is weaved, in printing machinery and some light industry and machinery.
Cam contour decides the movement of cam mechanism, and cam is one of most important components of cam mechanism.Currently, for convex
The research of wheel is mainly CAD cam contour.The processing technology of cam decides the performance of cam, precision etc., especially
It is the processing technology of globoid cam, is difficult to meet its required precision, and the processing technology period is long, and metal loss rate is high, processes model
It is with limit.
In view of the above problems, the patent of invention of 106736321 A of Publication No. CN discloses a kind of 20Cr in the prior art
Cam cutting technique, includes the following steps:
S1:Blank forming to form the blank with cam contour by forging or casting；
S2：It is rough turn, two end faces of roughing cam and inner hole on lathe；
S3：Mill cam contour, the profile of machining cam on milling machine or machining center；
S4：Carburizing carries out Carburization Treatment to cam contour surface；
S5：Half smart car, two end faces of semifinishing cam and inner hole on lathe；
S6：Quenching, by step S5, treated that cam is quenched；
S7：Smart car finishes two end faces and the inner hole of cam on lathe；
S8：Cam is roughly ground, the type face of cam is roughly ground on grinding machine；
S9：Step S8 treated cam is carried out tempering by tempering；
S10：Cam is refined, treated that cam carries out fine grinding processing by step S9；
Sl1:Step S10 treated cam is carried out deburring by pincers worker.The invention, the complex process of cam cutting, processing
Precision is not high.
For another example the patent of invention of 104259756 A of Publication No. CN discloses a kind of sickle-bar mower cam
Processing technology, belongs to garden equipment processing technique field, and processing step is as follows：（1）Blanking is simultaneously heat-treated；（2）End face milling；
（3）Coarse-fine milling；（4）Quenching；（5）Grinding；（6）Bore bore hole；（7）Smart car；（8）Flaw detection；（9）Cleaning, although the technique by pair
The heat treatment and grinding of cam solve the problems, such as that cam cutting precision is not high, but complex process, and metal loss rate is high.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of globoid cam processing technologys, to solve to lead in the prior art
The cam cutting precision of cause is not high, complex process and the low above-mentioned defects of metal loss rate.
To achieve the above object, the present invention provides technical solution below：A kind of globoid cam processing technology, including it is following
Step：
（1）Blanking is simultaneously heat-treated：Material selection 40Cr, using annealing, temperature is controlled at 800-900 DEG C, and soaking time is
1-3h ；
（2）Mill arc tip circle：It using spiral feed, is smoothly fed between knife rail, guarantees High Speed Milling Operation continuity；
（3）It rough mills：Enter workpiece material with spiral or angled manner；
（4）Half finish-milling：Step（3）Residual process face after processing is smoothened, while taking out the excess stock of corner；
（5）Seep charcoal, quenching treatment；
（6）Finish-milling：The part shape and size accurately needed；
（7）Polishing；
（8）It examines.
Preferably, the step（1）Material selection 40Cr, using annealing, temperature is specifically controlled at 850 DEG C, heat preservation
Time specifically controls as 2h.
Preferably, the step（3）Cutter always with 5 ° of inclination angles, enters workpiece material with spiral or angled manner.
Preferably, the step（3）Enter workpiece material with spiral or angled manner, radial amount of feed is that 7% cutter is straight
Diameter, depth amount of feed are 4% cutter diameter.
Preferably, the step（5）Charcoal, quenching treatment are seeped, infiltration carbon layer is 1-3mm, surface high frequency quenching, HRC52-
58。
Preferably, the step（8）The requirement of inspection, the surface roughness of globoid cam is less than 0.8 μm.
It is using the beneficial effect of above technical scheme：Globoid cam processing technology of the invention is walked using following technique
Suddenly, it blanking and is heat-treated-milling arc tip circle-and rough mills-half finish-milling-infiltration charcoal, quenching treatment-finish-milling-polishing-inspection, selection is closed
Suitable tool path pattern controls the amount of feed of radial direction and depth, improves machining accuracy, and metal loss rate is lower, technique
Step simple possible reduces production cost.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment 1：
Fig. 1 shows a specific embodiment of the invention：A kind of globoid cam processing technology, includes the following steps：
（1）Blanking is simultaneously heat-treated：Material selection 40Cr, using annealing, temperature control is at 800 DEG C, soaking time 3h；
（2）Mill arc tip circle：It using spiral feed, is smoothly fed between knife rail, guarantees High Speed Milling Operation continuity；
（3）It rough mills：Cutter enters workpiece material always with 5 ° of inclination angles with spiral or angled manner, radial amount of feed is that 7% cutter is straight
Diameter, depth amount of feed are 4% cutter diameter；
（4）Half finish-milling：Step（3）Residual process face after processing is smoothened, while taking out the excess stock of corner, is
Finish-milling provides one layer of relatively uniform surplus, roughness is further decreased, conducive to the progress of heat treatment；
（5）Charcoal, quenching treatment are seeped, infiltration carbon layer is 1mm, surface high frequency quenching, HRC52-58；
（6）Finish-milling：The part shape and size accurately needed；
（7）Polishing；
（8）It examines, the surface roughness of globoid cam is less than 0.8 μm.
Embodiment 2：
Fig. 1 shows a specific embodiment of the invention：A kind of globoid cam processing technology, includes the following steps：
（1）Blanking is simultaneously heat-treated：Material selection 40Cr, using annealing, temperature control is at 850 DEG C, soaking time 2h；
（2）Mill arc tip circle：It using spiral feed, is smoothly fed between knife rail, guarantees High Speed Milling Operation
Continuity；
（3）It rough mills：Cutter always with 5 ° of inclination angles, enters workpiece material with spiral or angled manner,
Radial amount of feed is 7% cutter diameter, and depth amount of feed is 4% cutter diameter；
（4）Half finish-milling：Step（3）Residual process face after processing is smoothened, simultaneously
The excess stock for taking out corner, provides one layer of relatively uniform surplus for finish-milling, further decreases roughness, is conducive to heat
The progress of processing；
（5）Charcoal, quenching treatment are seeped, infiltration carbon layer is 2mm, surface high frequency quenching, HRC52-58；
（6）Finish-milling：The part shape and size accurately needed；
（7）Polishing；
（8）It examines, the surface roughness of globoid cam is less than 0.8 μm.
Embodiment 3：
Fig. 1 shows a specific embodiment of the invention：A kind of globoid cam processing technology, includes the following steps：
（1）Blanking is simultaneously heat-treated：Material selection 40Cr, using annealing, temperature control is at 900 DEG C, soaking time 1h；
（2）Mill arc tip circle：It using spiral feed, is smoothly fed between knife rail, guarantees High Speed Milling Operation continuity；
（3）It rough mills：Cutter enters workpiece material always with 5 ° of inclination angles with spiral or angled manner, radial amount of feed is that 7% cutter is straight
Diameter, depth amount of feed are 4% cutter diameter；
（4）Half finish-milling：Step（3）Residual process face after processing is smoothened, while taking out the excess stock of corner, is
Finish-milling provides one layer of relatively uniform surplus, roughness is further decreased, conducive to the progress of heat treatment；
（5）Charcoal, quenching treatment are seeped, infiltration carbon layer is 3mm, surface high frequency quenching, HRC52-58；
（6）Finish-milling：The part shape and size accurately needed；
（7）Polishing；
（8）It examines, the surface roughness of globoid cam is less than 0.8 μm.
Based on above-mentioned, of the invention globoid cam processing technology, using following processing step, blanking and be heat-treated-mill arc
Tip circle-rough mills-half finish-milling-infiltration charcoal, quenching treatment-finish-milling-polishing-inspection, selects suitable tool path pattern, controls diameter
To and depth amount of feed, improve machining accuracy, and metal loss rate is lower, processing step simple possible, reduce production
Cost.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (6)
1. a kind of globoid cam processing technology, it is characterised in that：Include the following steps：
（1）Blanking is simultaneously heat-treated：Material selection 40Cr, using annealing, temperature is controlled 800
- 900 DEG C, soaking time 1-3h；
（2）Mill arc tip circle：It using spiral feed, is smoothly fed between knife rail, guarantees High Speed Milling Operation continuity；
（3）It rough mills：Enter workpiece material with spiral or angled manner；
（4）Half finish-milling：Step（3）Residual process face after processing is smoothened, while taking out and turning
Excess stock at angle；
（5）Seep charcoal, quenching treatment；
（6）Finish-milling：The part shape and size accurately needed；
（7）Polishing；
（8）It examines.
2. globoid cam processing technology according to claim 1, it is characterised in that：The step（1）
Material selection 40Cr, using annealing, temperature is specifically controlled at 850 DEG C, and soaking time specifically controls as 2h.
3. globoid cam processing technology according to claim 1, it is characterised in that：The step（3）Cutter is always inclined with 5 °
Angle enters workpiece material with spiral or angled manner.
4. globoid cam processing technology according to claim 3, it is characterised in that：The step（3）With spiral or inclination
Mode enters workpiece material, and radial amount of feed is 7% cutter diameter, and depth amount of feed is 4% cutter diameter.
5. globoid cam processing technology according to claim 1, it is characterised in that：The step（5）At infiltration charcoal, quenching
Reason, infiltration carbon layer are 1-3mm, surface high frequency quenching, HRC52-58.
6. globoid cam processing technology according to claim 1, it is characterised in that：The step（8）The requirement of inspection, arc
The surface roughness of face cam is less than 0.8 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810912415.4A CN108838630A (en) | 2018-08-11 | 2018-08-11 | A kind of globoid cam processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810912415.4A CN108838630A (en) | 2018-08-11 | 2018-08-11 | A kind of globoid cam processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108838630A true CN108838630A (en) | 2018-11-20 |
Family
ID=64193038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810912415.4A Pending CN108838630A (en) | 2018-08-11 | 2018-08-11 | A kind of globoid cam processing technology |
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| CN (1) | CN108838630A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483186A (en) * | 2018-12-24 | 2019-03-19 | 王明川 | A kind of processing technology improving plane dish-type cam cutting precision and efficiency |
| CN110125467A (en) * | 2019-06-21 | 2019-08-16 | 重庆水轮机厂有限责任公司 | A kind of spherical bearing upper bracket plate assembly processing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259756A (en) * | 2014-08-15 | 2015-01-07 | 安庆创跃电器有限公司 | Reciprocating cutter bar mower cam machining process |
-
2018
- 2018-08-11 CN CN201810912415.4A patent/CN108838630A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259756A (en) * | 2014-08-15 | 2015-01-07 | 安庆创跃电器有限公司 | Reciprocating cutter bar mower cam machining process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483186A (en) * | 2018-12-24 | 2019-03-19 | 王明川 | A kind of processing technology improving plane dish-type cam cutting precision and efficiency |
| CN110125467A (en) * | 2019-06-21 | 2019-08-16 | 重庆水轮机厂有限责任公司 | A kind of spherical bearing upper bracket plate assembly processing method |
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Application publication date: 20181120 |
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