CN109483186A - A kind of processing technology improving plane dish-type cam cutting precision and efficiency - Google Patents
A kind of processing technology improving plane dish-type cam cutting precision and efficiency Download PDFInfo
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- CN109483186A CN109483186A CN201811578244.2A CN201811578244A CN109483186A CN 109483186 A CN109483186 A CN 109483186A CN 201811578244 A CN201811578244 A CN 201811578244A CN 109483186 A CN109483186 A CN 109483186A
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- cam
- casting
- centre bore
- cutting precision
- processing technology
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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
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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Abstract
The invention discloses a kind of processing technology for improving plane dish-type cam cutting precision and efficiency, select pre-configured material, it is liquid metal that material, which is placed in high temperature furnace, and carries out melting, liquid metal is poured, and applying pressure to liquid metal using metal forming machinery makes it generate the obtained cam casting of plastic deformation, cam casting obtained is placed on after standing a period of time in normalizing furnace and is taken out, the cam casting of taking-up is subjected to cooling treatment, so that cam casting is put into tempering furnace processing a period of time after being cooled to room temperature, make to come out of the stove when cam casting temperature setting value, cam casting is placed on to two end faces of the centre bore of machining cam casting and cam casting on lathe.The utility model has the advantages that being to finish in clamped one time, and dowel hole ratio of precision center hole precision is high by centre bore and cam outer rim, so that plane dish-type cam cutting precision is further enhanced, while reducing part turnover, processing cost is reduced.
Description
Technical field
The present invention relates to field of machining, it particularly relates to a kind of raising plane dish-type cam cutting precision and effect
The processing technology of rate.
Background technique
Cam outer rim and centre bore, dowel hole and installation screw hole can be all deformed after high-frequency quenching, and centre bore
It is relatively large in diameter, deformation also increases, therefore centre bore is reprocessed in increase turning and dowel hole diameter is smaller, and deformation is also smaller, is not required to
It reprocesses, is completed with centre bore and positioning pin and the datum end face positioning reprocessed when finishing outer rim.It needs clamping twice and determines
Position pin hole precision is lower so that machining accuracy is low.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
The purpose of the present invention is to provide it is a kind of improve plane dish-type cam cutting precision and efficiency processing technology,
To solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of raising plane dish-type cam cutting precision and
The processing technology of efficiency, comprising the following steps:
Pre-configured material is selected, it is liquid metal that material, which is placed in high temperature furnace, and carries out melting；
The liquid metal is poured, and applying pressure to the liquid metal using metal forming machinery makes it generate modeling
Property deform be made cam casting；
The cam casting obtained is placed on after standing a period of time in normalizing furnace and is taken out；
The cam casting of taking-up is subjected to cooling treatment, so that the cam casting is put into tempering after being cooled to room temperature
Furnace processing a period of time, make to come out of the stove when the cam casting temperature setting value；
The cam casting is placed on to the two of centre bore and the cam casting that the cam casting is processed on lathe
A end face；
The centre bore is fixed in machining center, using spiral feed, is smoothly fed between knife rail, cutter uses five degree
Inclination angle and the profile for entering the cam Mechanical processing of casting cam using spiral way；
Described two end faces of cam casting described in semifinishing and the centre bore on lathe；
Two end faces of semi-finished centre bore and the cam casting are positioned, determine dowel hole with
Behind the phase angle of the centre bore and screw hole and the centre bore, orthogonal turn-milling, which goes out to drill and ream, processes the dowel hole and institute
State screw hole；
With the positioning of described two end faces of one of the centre bore and the dowel hole and the cam casting, process convex
Outer rim is taken turns, and positions the made allowance of the cam outer rim by turnning and milling；
The cam casting is heat-treated, realizes and surface high frequency quenching is carried out to the cam outer rim, in lathe
The upper corase grinding cam type surface；
The dowel hole, the screw hole are subjected to fine grinding processing by sander；
With the dowel hole and the end face far from the cam outer rim positions, and the centre bore and finishing are installed in right boring
The cam outer rim, and remaining hole is drilled through to the cam casting by drilling machine；
The cam casting of the remaining hole will be drilled through by polishing machine polishing, at the same to the casting after polishing into
The roughness of cam outer rim described in performing check；
To the cam casting storage for examining qualification.
Further, the temperature of the annealing is 800-1000 DEG C, soaking time 0.5-4h.
Further, the furnace temperature of the normalizing furnace is 550-600 DEG C, time of repose 2-3h.
Further, the furnace temperature of the tempering furnace is 450-500 DEG C.
Further, the roughness of the cam outer rim is less than 0.5 μm.
Further, the made allowance is 0.2mm-0.3mm.
Further, the cam casting come out of the stove setting value be 260 DEG C.
Compared with prior art, the invention has the following advantages: being clamped one time by centre bore and cam outer rim
In finish, and dowel hole ratio of precision center hole precision is high, so that plane dish-type cam cutting precision further obtains
It improves, while reducing part turnover, reduce processing cost.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of processing technology side for improving plane dish-type cam cutting precision and efficiency according to an embodiment of the present invention
One of method flow chart:
Fig. 2 is a kind of processing technology side for improving plane dish-type cam cutting precision and efficiency according to an embodiment of the present invention
The two of method flow chart；
Fig. 3 is a kind of structural representation for improving plane dish-type cam cutting precision and efficiency according to an embodiment of the present invention
Figure.
Specific embodiment
In the following, making further description to invention in conjunction with attached drawing and specific embodiment:
Please refer to Fig. 1-3, it is according to an embodiment of the present invention it is a kind of improve plane dish-type cam cutting precision and efficiency plus
Work process, comprising the following steps:
Step S101 selects pre-configured material, and it is liquid metal that material, which is placed in high temperature furnace, and carries out melting；
Step S103 pours the liquid metal, and applies pressure to the liquid metal using metal forming machinery
It generates it and is plastically deformed obtained cam casting；
The cam casting obtained is placed on after standing a period of time in normalizing furnace and takes out by step S105；
The cam casting of taking-up is carried out cooling treatment, so that the cam casting is cooled to room temperature by step S107
After be put into tempering furnace processing a period of time, make to come out of the stove when the cam casting temperature setting value；
The cam casting is placed on the centre bore and the cam that the cam casting is processed on lathe by step S109
Two end faces of casting；
Step S111 in machining center fixes the centre bore, using spiral feed, is smoothly fed between knife rail, knife
Tool enters the profile of the cam Mechanical processing of casting cam using five degree of inclination angles and using spiral way；
Step S113, described two end faces of cam casting described in semifinishing and the centre bore on lathe；
Step S115 positions two end faces of semi-finished centre bore and the cam casting, determines
Behind the phase angle of dowel hole and the centre bore and screw hole and the centre bore, orthogonal turn-milling go out to drill and ream process it is described fixed
Position pin hole and the screw hole；
Step S117, it is fixed with described two end faces of one of the centre bore and the dowel hole and the cam casting
Position, machining cam outer rim, and position by turnning and milling the made allowance of the cam outer rim；
The cam casting is heat-treated by step S119, is realized and is quenched cam outer rim progress surface high frequency
Fire roughly grinds the cam type surface on lathe；
The dowel hole, the screw hole are carried out fine grinding processing by sander by step S121；
Step S123, with the dowel hole and the end face far from the cam outer rim positions, and the center is installed in right boring
Hole and the finishing cam outer rim, and remaining hole is drilled through to the cam casting by drilling machine；
The cam casting for drilling through the remaining hole is passed through polishing machine polishing by step S125, while to polishing
Casting afterwards is tested the roughness of the cam outer rim；
Step S127 is put in storage the cam casting for examining qualification.
Above scheme through the invention is to finish in clamped one time, and determine by centre bore and cam outer rim
Position pin hole ratio of precision center hole precision is high, so that plane dish-type cam cutting precision is further enhanced, while reducing zero
Part turnover, reduces processing cost.
In one embodiment, the temperature of the annealing is 800-1000 DEG C, soaking time 0.5-4h.
In one embodiment, the furnace temperature of the normalizing furnace is 550-600 DEG C, time of repose 2-3h.
In one embodiment, the furnace temperature of the tempering furnace is 450-500 DEG C.
In one embodiment, the roughness of the cam outer rim is less than 0.5 μm.
In one embodiment, the made allowance is 0.2mm-0.3mm.
In one embodiment, the cam casting come out of the stove setting value be 260 DEG C.
In conclusion being in clamped one time by centre bore and cam outer rim by means of above-mentioned technical proposal of the invention
It finishes, and dowel hole ratio of precision center hole precision is high, so that plane dish-type cam cutting precision is further mentioned
Height, while reducing part turnover, reduce processing cost.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of processing technology for improving plane dish-type cam cutting precision and efficiency, which is characterized in that
The following steps are included:
Pre-configured material is selected, it is liquid metal that material, which is placed in high temperature furnace, and carries out melting；
The liquid metal is poured, and applying pressure to the liquid metal using metal forming machinery makes it generate plasticity change
Shape obtains cam casting；
The cam casting obtained is placed on after standing a period of time in normalizing furnace and is taken out；
The cam casting of taking-up is subjected to cooling treatment, so that the cam casting is put at tempering furnace after being cooled to room temperature
Reason a period of time, make to come out of the stove when the cam casting temperature setting value；
The cam casting is placed on to two ends of centre bore and the cam casting that the cam casting is processed on lathe
Face；
The centre bore is fixed in machining center, using spiral feed, is smoothly fed between knife rail, cutter uses five degree of inclination angles
And enter the profile of the cam Mechanical processing of casting cam using spiral way；
Described two end faces of cam casting described in semifinishing and the centre bore on lathe；
Two end faces of semi-finished centre bore and the cam casting are positioned, determine dowel hole with it is described
Behind the phase angle of centre bore and screw hole and the centre bore, orthogonal turn-milling, which goes out to drill and ream, processes the dowel hole and the spiral shell
Wire hole；
It is positioned with described two end faces of one of the centre bore and the dowel hole and the cam casting, outside machining cam
Edge, and position by turnning and milling the made allowance of the cam outer rim；
The cam casting is heat-treated, realizes and surface high frequency quenching is carried out to the cam outer rim, it is thick on lathe
Grind the cam type surface；
The dowel hole, the screw hole are subjected to fine grinding processing by sander；
With the dowel hole and the end face far from the cam outer rim positions, and right boring is installed described in the centre bore and finishing
Cam outer rim, and remaining hole is drilled through to the cam casting by drilling machine；
The cam casting for drilling through the remaining hole is passed through into polishing machine polishing, while the casting after polishing is examined
Test the roughness of the cam outer rim；
To the cam casting storage for examining qualification.
2. a kind of processing technology for improving plane dish-type cam cutting precision and efficiency according to claim 1,
It is characterized in that, the temperature of the annealing is 800-1000 DEG C, soaking time 0.5-4h.
3. a kind of processing technology for improving plane dish-type cam cutting precision and efficiency according to claim 1,
It is characterized in that, the furnace temperature of the normalizing furnace is 550-600 DEG C, time of repose 2-3h.
4. a kind of processing technology for improving plane dish-type cam cutting precision and efficiency according to claim 1,
It is characterized in that, the furnace temperature of the tempering furnace is 450-500 DEG C.
5. a kind of processing technology for improving plane dish-type cam cutting precision and efficiency according to claim 1,
It is characterized in that, the roughness of the cam outer rim is less than 0.5 μm.
6. a kind of processing technology for improving plane dish-type cam cutting precision and efficiency according to claim 1,
It is characterized in that, the made allowance is 0.2mm-0.3mm.
7. a kind of processing technology for improving plane dish-type cam cutting precision and efficiency according to claim 1,
Be characterized in that, the cam casting come out of the stove setting value be 260 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811578244.2A CN109483186A (en) | 2018-12-24 | 2018-12-24 | A kind of processing technology improving plane dish-type cam cutting precision and efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811578244.2A CN109483186A (en) | 2018-12-24 | 2018-12-24 | A kind of processing technology improving plane dish-type cam cutting precision and efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109483186A true CN109483186A (en) | 2019-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811578244.2A Pending CN109483186A (en) | 2018-12-24 | 2018-12-24 | A kind of processing technology improving plane dish-type cam cutting precision and efficiency |
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| CN (1) | CN109483186A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000009769A1 (en) * | 1998-08-11 | 2000-02-24 | Daimlerchrysler Ag | Method for producing a cam that can be placed on a hollow shaft to form a camshaft |
| CN102962650A (en) * | 2012-12-16 | 2013-03-13 | 重庆望江工业有限公司 | Method for manufacturing prismatic profiling facing cam |
| 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 |
| CN106736321A (en) * | 2016-12-31 | 2017-05-31 | 重庆市搏润模具有限公司 | A kind of 20Cr cam cuttings technique |
| CN108838630A (en) * | 2018-08-11 | 2018-11-20 | 三门县职业中等专业学校 | A kind of globoid cam processing technology |
-
2018
- 2018-12-24 CN CN201811578244.2A patent/CN109483186A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000009769A1 (en) * | 1998-08-11 | 2000-02-24 | Daimlerchrysler Ag | Method for producing a cam that can be placed on a hollow shaft to form a camshaft |
| CN102962650A (en) * | 2012-12-16 | 2013-03-13 | 重庆望江工业有限公司 | Method for manufacturing prismatic profiling facing cam |
| 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 |
| CN106736321A (en) * | 2016-12-31 | 2017-05-31 | 重庆市搏润模具有限公司 | A kind of 20Cr cam cuttings technique |
| CN108838630A (en) * | 2018-08-11 | 2018-11-20 | 三门县职业中等专业学校 | A kind of globoid cam processing technology |
Non-Patent Citations (1)
| Title |
|---|
| 谭永刚 等: "《数控加工工艺》", 31 January 2009, 国防工业出版社 * |
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Application publication date: 20190319 |