CN112122881A - Chamfering machining method for side hole of cylinder - Google Patents
Chamfering machining method for side hole of cylinder Download PDFInfo
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- CN112122881A CN112122881A CN202011002886.5A CN202011002886A CN112122881A CN 112122881 A CN112122881 A CN 112122881A CN 202011002886 A CN202011002886 A CN 202011002886A CN 112122881 A CN112122881 A CN 112122881A
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- hole
- cylindrical workpiece
- chamfering
- orifice
- radial hole
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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
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
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Abstract
The invention discloses a chamfer processing method of a cylindrical side hole. A chamfering processing method for a cylindrical side hole comprises the following steps: s1, preparing a machining center and a cylindrical workpiece; s2, processing a radial hole on the cylindrical workpiece through a processing center; s3, replacing the cutter of the machining center with a rod milling cutter, rotating the workpiece by 90 degrees along the axial lead, feeding in the opening of the radial hole along the direction vertical to the cylindrical workpiece, and chamfering the opening of the radial hole.
Description
Technical Field
The invention relates to the technical field of chamfering processes, in particular to a chamfering processing method for a side hole of a cylinder.
Background
When a hole is machined in a part, a common hole needs to be chamfered in order to facilitate assembly, operation safety and the like. In the prior art, some chamfering processing of holes adopts a universal drilling machine for processing, some chamfering tools or tools for processing, and some chamfering tools or tools for processing adopt roller burnishing and sand blasting, but the prior art mode can only process the chamfer of the holes on a plane. For the chamfer of the intersecting line of the side hole of the cylinder, the chamfer is a space curve and is not on a plane, as shown in figure 1, no mature cutting processing method exists so far, and the technical problem of the chamfering of the intersecting line exists.
In the prior art, an angle grinder is generally used for roughly and approximately processing intersecting lines, or a numerical control program is adopted to enable a cutter to go out of the approximate intersecting line path and the like, but the prior art has the defects of low production efficiency, damage to parts, incomplete cleaning and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a chamfering processing method of a cylindrical side hole.
The purpose of the invention is realized as follows:
a chamfering processing method for a cylindrical side hole comprises the following steps:
s1, preparing a machining center and a cylindrical workpiece;
s2, processing a radial hole on the cylindrical workpiece through a processing center;
s3, replacing the cutter of the machining center with a rod milling cutter, rotating the workpiece by 90 degrees along the axial lead, feeding in the opening of the radial hole along the direction vertical to the cylindrical workpiece, and chamfering the opening of the radial hole.
Preferably, the diameter of the rod mill is equal to the diameter of the cylindrical workpiece, so that the intersection line formed by the machining is as wide as the circumference line of the hole.
Preferably, the radial hole is a circular hole, and chamfering of the hole opening of the circular hole is completed by feeding in a direction perpendicular to the cylindrical workpiece.
Preferably, the radial hole is a flat hole, the cutting is performed through the direction perpendicular to the cylindrical workpiece and aligned to one end of the orifice of the flat hole, and the cutting is performed to the other end of the orifice of the flat hole along the longitudinal direction of the flat hole after the cutting, so that the chamfering of the orifice of the flat hole is completed.
Preferably, the diameter of the rod milling cutter is smaller than that of the cylindrical workpiece, the rod milling cutter is fed in a direction perpendicular to the cylindrical workpiece and aligned to one end of the radial hole orifice, and the rod milling cutter is fed to the other end of the radial hole orifice along an arc according to the designed size of a chamfer angle after feeding to complete chamfering of the radial hole orifice.
Preferably, the machining center adopts a four-axis machining center, the four-axis machining center has a tool changing condition, and the fixture for the cylindrical workpiece has a rotating shaft.
Preferably, the radial hole is drilled by a drill.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention can process the qualified intersecting line of the side hole of the cylinder by using a commonly used universal cutter and programming a simple program. The method has the advantages of simple and convenient operation, strong universality, high use efficiency, high processing precision and the like, and is suitable for single-piece production and mass production. The problem of the chamfer of cylinder side opening (including the slotted hole) intersecting line or burring difficult processing or machining inefficiency is solved. The invention mainly has the following characteristics:
1. the processing is simple and quick. The universal cutter which is commonly used is utilized, programming is simple, and operability and universality are high.
2. The appearance processing effect is good, and the design requirements are met. The chamfer angle at the intersecting line of the processed cylinder and the hole is perfect and equal in width.
3. The long holes or slots which are right crossed with the cylinder can be processed by adopting the same principle.
Drawings
FIG. 1: a schematic structural view of a cylindrical workpiece;
FIG. 2: when the radial hole is a circular hole, the machining schematic diagram of the invention (the diameter of the rod milling cutter is equal to the diameter of the cylindrical workpiece);
FIG. 3: when the radial hole is a flat hole, the machining schematic diagram is shown;
FIG. 4: when the radial hole is a circular hole, the machining schematic diagram of the invention (the diameter of the rod milling cutter is smaller than that of the cylindrical workpiece);
Detailed Description
Referring to fig. 2, a method for chamfering a side hole of a cylinder includes the following steps:
s1, preparing a machining center and a cylindrical workpiece; the machining center adopts a four-axis machining center, the four-axis machining center has tool changing conditions, and the clamp for the cylindrical workpiece is provided with a rotating shaft.
S2, processing a radial hole on the cylindrical workpiece through a processing center; the radial hole is drilled by a drill.
S3, replacing the cutter of the machining center with a rod milling cutter, rotating the workpiece by 90 degrees along the axial lead, feeding in the opening of the radial hole along the direction vertical to the cylindrical workpiece, and chamfering the opening of the radial hole.
The radial hole is a round hole, and the chamfering of the orifice of the round hole is completed by feeding in the direction perpendicular to the cylindrical workpiece. In this embodiment, the diameter of the rod mill is equal to the diameter of the cylindrical workpiece, so that the width between the intersection line formed by machining and the circumferential line of the hole is the same.
The invention is not limited to the above embodiment, and referring to fig. 3, the radial hole may be a flat hole, and the chamfer of the flat hole opening is completed by feeding along the longitudinal direction of the flat hole to the other end of the flat hole opening in the direction perpendicular to the cylindrical workpiece and aligned with one end of the flat hole opening.
The present invention is not limited to the above-mentioned embodiment, and referring to fig. 4, the diameter of the rod mill is smaller than that of the cylindrical workpiece, and the chamfering of the radial hole opening is completed by feeding the rod mill in a direction perpendicular to the cylindrical workpiece and aligned with one end of the radial hole opening, and then feeding the rod mill to the other end of the radial hole opening along an arc according to the designed size of the chamfer. The processing principle of the flat hole and the round hole is the same.
A hole with the diameter of phi 10mm or phi 6mm is machined in a cylindrical workpiece with the diameter of phi 20mm in the figure 1, and a rod milling cutter with the diameter of phi 20mm is used for ensuring the machining effect of an intersecting line machined from an orifice. The processing flow is described below.
1. Drilling;
2. the cylindrical workpiece is rotated by 90 degrees (to the front view position) with the jig;
3. and calling a phi 20 rod milling cutter to feed the cylindrical workpiece along the diameter direction of the cylindrical workpiece at the axial coordinate position of the hole center along the diameter direction of the cylindrical workpiece. See fig. 2.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (7)
1. The chamfer machining method for the side hole of the cylinder is characterized by comprising the following steps of:
s1, preparing a machining center and a cylindrical workpiece;
s2, processing a radial hole on the cylindrical workpiece through a processing center;
s3, replacing the cutter of the machining center with a rod milling cutter, rotating the workpiece by 90 degrees along the axial lead, feeding in the opening of the radial hole along the direction vertical to the cylindrical workpiece, and chamfering the opening of the radial hole.
2. The chamfering processing method of the side hole of the cylinder according to claim 1, wherein: the diameter of the rod milling cutter is equal to that of the cylindrical workpiece, so that the width between the processed intersection line and the circumferential line of the hole is equal.
3. The chamfering processing method of the side hole of the cylinder according to claim 2, wherein: the radial hole is a round hole, and the chamfering of the orifice of the round hole is completed by feeding in the direction perpendicular to the cylindrical workpiece.
4. The chamfering processing method of the side hole of the cylinder according to claim 2, wherein: the radial hole is a flat hole, the cutting is carried out in a direction perpendicular to the cylindrical workpiece and aligned to one end of the orifice of the flat hole, and the cutting is carried out to the other end of the orifice of the flat hole along the longitudinal direction of the flat hole after the cutting is carried out, so that the chamfering of the orifice of the flat hole is completed.
5. The chamfering processing method of the side hole of the cylinder according to claim 1, wherein: the diameter of the rod milling cutter is smaller than that of the cylindrical workpiece, the rod milling cutter is fed in a direction perpendicular to the cylindrical workpiece and aligned to one end of the orifice of the radial hole, and the chamfer angle of the orifice of the radial hole is finished after the rod milling cutter is fed to the other end of the orifice of the radial hole along arc-shaped feed according to the design size of the chamfer angle.
6. The chamfering processing method of the side hole of the cylinder according to claim 1, wherein: the machining center adopts a four-axis machining center, the four-axis machining center has tool changing conditions, and the clamp for the cylindrical workpiece is provided with a rotating shaft.
7. The chamfering processing method of the side hole of the cylinder according to claim 1, wherein: the radial hole is drilled by a drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002886.5A CN112122881A (en) | 2020-09-22 | 2020-09-22 | Chamfering machining method for side hole of cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002886.5A CN112122881A (en) | 2020-09-22 | 2020-09-22 | Chamfering machining method for side hole of cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112122881A true CN112122881A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011002886.5A Pending CN112122881A (en) | 2020-09-22 | 2020-09-22 | Chamfering machining method for side hole of cylinder |
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| Country | Link |
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| CN (1) | CN112122881A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319344A (en) * | 2021-06-04 | 2021-08-31 | 湖南南方通用航空发动机有限公司 | Method for eliminating vibration cutter lines by processing orifice chamfer |
| CN114161222A (en) * | 2021-11-22 | 2022-03-11 | 中船动力镇江有限公司 | Arc chamfering processing method for oil hole orifice on crankshaft journal of diesel engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441776A (en) * | 2011-09-14 | 2012-05-09 | 中国航空工业第六一八研究所 | Deburring method for intersecting positions of spatial intersection holes |
| CN102489733A (en) * | 2011-12-16 | 2012-06-13 | 南京众得利自动化机械有限公司 | Cutter for chamfering orifice of intersection line |
| CN104723205A (en) * | 2015-04-08 | 2015-06-24 | 武汉一冶钢结构有限责任公司 | Fast machining method of minor-diameter steel pipe intersecting line |
| KR101602058B1 (en) * | 2014-09-26 | 2016-03-10 | 정정영 | Processing method using the pinhole of the bearing machining center |
| CN107138778A (en) * | 2017-06-27 | 2017-09-08 | 南昌与德通讯技术有限公司 | Side opening chamfer processing method |
| CN208427796U (en) * | 2018-05-10 | 2019-01-25 | 西安施迈传动科技有限公司 | A kind of intersection aperture machine deburring facing attachment |
-
2020
- 2020-09-22 CN CN202011002886.5A patent/CN112122881A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441776A (en) * | 2011-09-14 | 2012-05-09 | 中国航空工业第六一八研究所 | Deburring method for intersecting positions of spatial intersection holes |
| CN102489733A (en) * | 2011-12-16 | 2012-06-13 | 南京众得利自动化机械有限公司 | Cutter for chamfering orifice of intersection line |
| KR101602058B1 (en) * | 2014-09-26 | 2016-03-10 | 정정영 | Processing method using the pinhole of the bearing machining center |
| CN104723205A (en) * | 2015-04-08 | 2015-06-24 | 武汉一冶钢结构有限责任公司 | Fast machining method of minor-diameter steel pipe intersecting line |
| CN107138778A (en) * | 2017-06-27 | 2017-09-08 | 南昌与德通讯技术有限公司 | Side opening chamfer processing method |
| CN208427796U (en) * | 2018-05-10 | 2019-01-25 | 西安施迈传动科技有限公司 | A kind of intersection aperture machine deburring facing attachment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319344A (en) * | 2021-06-04 | 2021-08-31 | 湖南南方通用航空发动机有限公司 | Method for eliminating vibration cutter lines by processing orifice chamfer |
| CN113319344B (en) * | 2021-06-04 | 2022-09-02 | 湖南南方通用航空发动机有限公司 | Method for eliminating vibration cutter lines by processing orifice chamfer |
| CN114161222A (en) * | 2021-11-22 | 2022-03-11 | 中船动力镇江有限公司 | Arc chamfering processing method for oil hole orifice on crankshaft journal of diesel engine |
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Application publication date: 20201225 |