CN111993091A - Crankshaft machining device - Google Patents
Crankshaft machining device Download PDFInfo
- Publication number
- CN111993091A CN111993091A CN202010926830.2A CN202010926830A CN111993091A CN 111993091 A CN111993091 A CN 111993091A CN 202010926830 A CN202010926830 A CN 202010926830A CN 111993091 A CN111993091 A CN 111993091A
- Authority
- CN
- China
- Prior art keywords
- grinding wheel
- crankshaft
- main shaft
- eccentric section
- power head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Images
Classifications
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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
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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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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- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
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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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/07—Crankshafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to a crankshaft machining device, S1: roughly turning the blank; s2: carrying out heat treatment; s3: finish turning: s4: processing an eccentric section; s5: and drilling and tapping the center. In step S4, when the eccentric section is machined, the following structure is adopted: the grinding wheel comprises a grinding wheel, an angle power head, a main shaft of a machining center, a precise pillow block, a three-jaw chuck and a tailstock ejector pin, wherein the three-jaw chuck and the tailstock ejector pin are used for clamping a crankshaft, a rotating shaft in the middle of the grinding wheel is connected with the main shaft through the angle power head, and the main shaft, the angle power head and the grinding wheel can be driven by the machining center to grind an eccentric section and other outer circumferences of the crankshaft.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a crankshaft machining device.
Background
The crankshaft is a double-support eccentric shaft, the eccentricity is small, and the requirement on the precision of slide tolerance is high. Because the eccentricity of the eccentric section is too small (2mm +/-0.005), the reference central hole and the technological central hole of the eccentric section cannot be simultaneously processed, and in addition, the parallelism and the size between the eccentricity of the eccentric section are difficult to control. The product can not meet the requirement of high precision by adopting the traditional processing technology.
Disclosure of Invention
To the not enough of above-mentioned prior art, the technical problem that this patent application will solve provides a machining precision height, simple structure, convenient to use's bent axle processingequipment.
In order to solve the technical problems, the invention adopts the following technical scheme:
a crankshaft machining device comprises the following steps:
s1: roughly turning the blank;
s2: carrying out heat treatment;
s3: finish turning:
s4: processing an eccentric section;
s5: and drilling holes on two end surfaces.
In step S4, when the eccentric section is machined, the following structure is adopted: the grinding wheel comprises a grinding wheel, an angle power head, a main shaft of a machining center, a precise pillow block, a three-jaw chuck and a tailstock ejector pin, wherein the three-jaw chuck and the tailstock ejector pin are used for clamping a crankshaft, a rotating shaft in the middle of the grinding wheel is connected with the main shaft through an angle head, and the main shaft, the angle power head and the grinding wheel can be driven by the machining center to grind an eccentric section and other outer circumferences of the crankshaft.
Wherein, the grinding wheel and the crankshaft rotate in the same direction. The grinding wheel is tangent to the profile of the crankshaft.
The invention has the beneficial effects that:
the axis of the grinding wheel is horizontal to a workbench of the precise shaft platform, so that the effect of cylindrical grinding can be achieved, as a machining center with four shafts is provided with a numerical control system, the grinding precision and the theoretical profile can be effectively guaranteed, one-time clamping can be realized, the principle of multi-process centralized machining can be realized, conventional milling can be realized before an angle power head and the grinding wheel are not installed, redundant residual materials and other flat positions of an eccentric section are milled, grinding can be realized after the angle power head and the grinding wheel are installed, and the numerical control grinding machine can be used for grinding common cylindrical circles, eccentric cylindrical circles and other special-shaped cylindrical circles through CNC program control. The grinding wheel moves back and forth along with the theoretical profile of the workpiece, so that the profile of the grinding wheel is tangent to the profile of the workpiece, the grinding effect is achieved, and the surface quality and the precision are improved.
Drawings
Fig. 1 is a structural diagram of a crankshaft machining apparatus according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
As shown in fig. 1, a crankshaft machining apparatus includes the steps of:
s1: roughly turning the blank;
s2: carrying out heat treatment;
s3: finish turning:
s4: processing an eccentric section;
s5: and drilling and tapping the center.
In step S4, when the eccentric section is machined, the following structure is adopted: the grinding wheel comprises a grinding wheel 1, an angle power head 2, a main shaft 3 of a machining center, a precise pillow block 4, a three-jaw chuck 5 and a tailstock ejector pin 6, wherein the crankshaft 7 is clamped by the three-jaw chuck and the tailstock ejector pin, a rotating shaft in the middle of the grinding wheel is connected with the main shaft through an angle head, and the main shaft, the angle power head and the grinding wheel can be driven by the machining center to grind an eccentric section and other outer circumferences of the crankshaft.
Wherein, the grinding wheel and the crankshaft rotate in the same direction. The grinding wheel is tangent to the profile of the crankshaft.
Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (3)
1. A crankshaft machining device is characterized by comprising the following steps:
s1: roughly turning the blank;
s2: carrying out heat treatment;
s3: finish turning:
s4: processing an eccentric section;
s5: and drilling holes on two end surfaces.
2. The crankshaft machining device according to claim 1, wherein in step S4, when machining the eccentric section, the following structure is adopted: the grinding wheel comprises a grinding wheel, an angle power head, a main shaft of a machining center, a precise pillow block, a three-jaw chuck and a tailstock ejector pin, wherein the three-jaw chuck and the tailstock ejector pin are used for clamping a crankshaft, a rotating shaft in the middle of the grinding wheel is connected with the main shaft through the angle power head, and the main shaft, the angle power head and the grinding wheel can be driven by the machining center to grind an eccentric section and other outer circumferences of the crankshaft.
3. A crankshaft machining device according to claim 2, wherein the grinding wheel and the crankshaft rotate in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926830.2A CN111993091A (en) | 2020-09-07 | 2020-09-07 | Crankshaft machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926830.2A CN111993091A (en) | 2020-09-07 | 2020-09-07 | Crankshaft machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111993091A true CN111993091A (en) | 2020-11-27 |
Family
ID=73469960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010926830.2A Pending CN111993091A (en) | 2020-09-07 | 2020-09-07 | Crankshaft machining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111993091A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6878043B1 (en) * | 1999-04-30 | 2005-04-12 | Erwin Junker Maschinenfabrik Gmbh | Rough- and finish-grinding of a crankshaft in one set-up |
| CN103009021A (en) * | 2012-12-31 | 2013-04-03 | 四川绵竹鑫坤机械制造有限责任公司 | Segmented crankshaft machining process |
| CN105563057A (en) * | 2015-12-01 | 2016-05-11 | 陕西易阳科技有限公司 | Engine crankshaft machining method |
| CN109048366A (en) * | 2018-09-05 | 2018-12-21 | 广州霏鸿智能科技有限公司 | A set of process equipment and processing method about crankshaft |
| CN109048242A (en) * | 2018-11-10 | 2018-12-21 | 耿思宇 | A kind of processing technology of engine crankshaft |
| CN109746649A (en) * | 2019-03-13 | 2019-05-14 | 芜湖肯昌机电有限公司 | A kind of processing technology of engine crankshaft |
-
2020
- 2020-09-07 CN CN202010926830.2A patent/CN111993091A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6878043B1 (en) * | 1999-04-30 | 2005-04-12 | Erwin Junker Maschinenfabrik Gmbh | Rough- and finish-grinding of a crankshaft in one set-up |
| CN103009021A (en) * | 2012-12-31 | 2013-04-03 | 四川绵竹鑫坤机械制造有限责任公司 | Segmented crankshaft machining process |
| CN105563057A (en) * | 2015-12-01 | 2016-05-11 | 陕西易阳科技有限公司 | Engine crankshaft machining method |
| CN109048366A (en) * | 2018-09-05 | 2018-12-21 | 广州霏鸿智能科技有限公司 | A set of process equipment and processing method about crankshaft |
| CN109048242A (en) * | 2018-11-10 | 2018-12-21 | 耿思宇 | A kind of processing technology of engine crankshaft |
| CN109746649A (en) * | 2019-03-13 | 2019-05-14 | 芜湖肯昌机电有限公司 | A kind of processing technology of engine crankshaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201127 |
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| RJ01 | Rejection of invention patent application after publication |