CN112719371A - Long-depth annular hole machining method - Google Patents
Long-depth annular hole machining method Download PDFInfo
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- CN112719371A CN112719371A CN202011548682.1A CN202011548682A CN112719371A CN 112719371 A CN112719371 A CN 112719371A CN 202011548682 A CN202011548682 A CN 202011548682A CN 112719371 A CN112719371 A CN 112719371A
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- annular hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
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Abstract
The invention belongs to the field of machining and discloses a method for machining a long-depth annular hole, which comprises the following steps: 1) installing the long-depth annular hole cutter into a tool magazine, and fixing a part (2) on a workbench by adopting a clamp (1); 2) processing an annular hole (3) with a certain depth on the part (2) as a guide hole for processing a long-depth annular hole cutter; 3) roughly machining by using a hollow drill to remove most of the allowance; 4) and (3) machining the annular hole (3) of the part (2) by using a long-depth annular hole cutter, wherein the long-depth annular hole cutter is used for machining the annular hole to a target size along the axial direction of the part (2) at the speed of 80-150 mm/min. The invention can process the long-depth annular hole with the depth of more than 40mm, solves the problems of low efficiency, poor quality and the like in the existing processing process, improves the production efficiency and saves the production cost.
Description
Technical Field
The invention relates to a method for machining a long-depth annular hole, and belongs to the field of machining.
Background
In the existing mechanical processing, a gun drill or a hollow drill is usually adopted to process annular holes with the depth of more than 20mm, the two methods are long in time consumption and low in efficiency for processing a single part, the surface roughness of a part is poor, the requirement of a drawing is difficult to meet, great inconvenience and waste are caused to enterprises, and the manufacturing cost is increased. It can be seen that the existing long depth annular hole machining technology is in need of further improvement and improvement. The invention relates to a long-depth annular hole machining method which is combined with a special long-depth annular hole cutter to finish high-efficiency and high-quality machining of a long-depth annular hole.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems in the prior art, the invention provides the long-depth annular hole machining method, which can machine the long-depth annular hole with the depth of more than 40mm, solves the problems of low efficiency, poor quality and the like in the existing machining process, improves the production efficiency and saves the production cost.
The technical scheme of the invention is as follows:
a long-depth annular hole machining method is realized based on a long-depth annular hole cutter, the long-depth annular hole cutter comprises a cutter head 4 and a cutter seat 6, two grooves are formed in one end of the cutter seat 6, the shape of the cutter head 4 is matched with that of the cutter seat 6, the cutter head 4 is arranged on the grooves of the cutter seat 6, and a rectangular groove is formed between the two cutter heads 4; a middle water outlet hole 7 is formed in the center of the tool apron 6, two chip removal molded surfaces which are symmetrical along the circumferential direction are arranged on the tool apron 6, and an outward chip removal groove 5 is formed in the bottom of each chip removal molded surface;
the method comprises the following steps:
1, installing the long-depth annular hole cutter into a tool magazine, and fixing a part 2 on a workbench by adopting a clamp 1;
2, processing an annular hole 3 with a certain depth on the part 2 as a guide hole for processing a long-depth annular hole cutter;
3, roughly machining by using a hollow drill to remove most of allowance;
and 4, machining the annular hole 3 of the part 2 by using a long-depth annular hole cutter, wherein the long-depth annular hole cutter is fed and machined to a target size along the axial direction of the part 2 at a speed of 80-150 mm/min.
In the step 2, the depth of the guide hole is not less than 1-2 times of the height of the cutter head.
And 3, during rough machining, reserving 1-1.2 mm of allowance in the end face and the diameter direction of the annular hole 3 for subsequent finish machining.
And 4, a method of circularly machining holes is adopted, so that chip breaking and chip removal are smooth, and a good cooling effect is ensured.
And in the step 4, the feed amount of each tooth is 0.05mm, so that the processing quality and efficiency are ensured.
In the step 4, the length of the side edge of the long-depth annular hole cutter is required to be larger than the diameter of the long-depth annular hole, so that the annular hole 3 is prevented from being drilled obliquely.
After the long-depth annular hole cutter in the step 4 is worn, a new cutter head 4 can be welded again.
And 4, coating a layer of wear-resistant material on the tool bit 4 of the long-depth annular hole tool in the step 4 so as to prolong the service life of the tool.
The invention has the beneficial effects that: the problem of the processing of the long-depth annular hole with the depth larger than 40mm is solved, the processed annular hole is high in straightness accuracy, good in roughness, high in cutting efficiency and good in cutting stability, the processing time and cost are reduced, and the processing efficiency and the part quality are improved.
Drawings
Fig. 1 is a schematic view of the installation of the present invention.
The cutting tool comprises a clamp 1, a part 2, an annular hole 3, a tool bit 4, a chip groove 5, a tool apron 6 and a water outlet hole 7.
Detailed Description
The preferred embodiment of the present invention is described in detail below with reference to the accompanying FIG. 1:
a long-depth annular hole machining method is realized based on a long-depth annular hole cutter, the long-depth annular hole cutter comprises a cutter head 4 and a cutter seat 6, two grooves are formed in one end of the cutter seat 6, the shape of the cutter head 4 is matched with that of the cutter seat 6, the cutter head 4 is arranged on the grooves of the cutter seat 6, and a rectangular groove is formed between the two cutter heads 4; a middle water outlet hole 7 is formed in the center of the tool apron 6, two chip removal molded surfaces which are symmetrical along the circumferential direction are arranged on the tool apron 6, and an outward chip removal groove 5 is formed in the bottom of each chip removal molded surface;
the method comprises the following steps:
1, installing the long-depth annular hole cutter into a tool magazine, and fixing a part 2 on a workbench by adopting a clamp 1;
2, processing an annular hole 3 with a certain depth on the part 2 as a guide hole for processing a long-depth annular hole cutter;
3, roughly machining by using a hollow drill to remove most of allowance;
and 4, machining the annular hole 3 of the part 2 by using a long-depth annular hole cutter, wherein the long-depth annular hole cutter is fed and machined to a target size along the axial direction of the part 2 at a speed of 80-150 mm/min.
In the step 2, the depth of the guide hole is not less than 1-2 times of the height of the cutter head.
And 3, during rough machining, reserving 1-1.2 mm of allowance in the end face and the diameter direction of the annular hole 3 for subsequent finish machining.
And 4, a method of circularly machining holes is adopted, so that chip breaking and chip removal are smooth, and a good cooling effect is ensured.
And in the step 4, the feed amount of each tooth is 0.05mm, so that the processing quality and efficiency are ensured.
In the step 4, the length of the side edge of the long-depth annular hole cutter is required to be larger than the diameter of the long-depth annular hole, so that the annular hole 3 is prevented from being drilled obliquely.
After the long-depth annular hole cutter in the step 4 is worn, a new cutter head 4 can be welded again.
And 4, coating a layer of wear-resistant material on the tool bit 4 of the long-depth annular hole tool in the step 4 so as to prolong the service life of the tool.
Claims (8)
1. The long-depth annular hole machining method is realized based on a long-depth annular hole cutter, the long-depth annular hole cutter comprises a cutter head (4) and a cutter seat (6), two grooves are formed in one end of the cutter seat (6), the shape of the cutter head (4) is matched with that of the groove of the cutter seat (6), the cutter head (4) is arranged on the groove of the cutter seat (6), and a rectangular groove is formed between the two cutter heads (4); a middle water outlet hole (7) is formed in the center of the tool apron (6), two chip removal molded surfaces which are symmetrical along the circumferential direction are arranged on the tool apron (6), and an outward chip removal groove (5) is formed in the bottom of each chip removal molded surface;
the method comprises the following steps:
1) installing the long-depth annular hole cutter into a tool magazine, and fixing a part (2) on a workbench by adopting a clamp (1);
2) processing an annular hole (3) with a certain depth on the part (2) as a guide hole for processing a long-depth annular hole cutter;
3) roughly machining by using a hollow drill to remove most of the allowance;
4) and (3) machining the annular hole (3) of the part (2) by using a long-depth annular hole cutter, wherein the long-depth annular hole cutter is used for machining the annular hole to a target size along the axial direction of the part (2) at the speed of 80-150 mm/min.
2. The method for machining the long-depth annular hole according to claim 1, wherein in the step 2), the depth of the guide hole is not less than 1-2 times of the height of the cutter head.
3. The method for machining the long-depth annular hole according to claim 1, wherein in the step 3) of rough machining, the end face and the diameter direction of the annular hole (3) are left with 1-1.2 mm of allowance for subsequent finish machining.
4. A long-depth annular hole machining method according to claim 1, wherein a circular hole machining method is adopted in the step 4).
5. A long depth circular hole processing method as claimed in claim 1, wherein the feed per tooth of step 4) is 0.05 mm.
6. The long-depth annular hole machining method according to claim 1, wherein in the step 4), the length of the side edge of the long-depth annular hole cutter is larger than the diameter of the long-depth annular hole, so that the annular hole (3) is prevented from being drilled obliquely.
7. A long depth annular hole machining method according to claim 1, wherein the tool bit (4) in step 4) is replaceable.
8. A long depth annular hole machining method according to claim 1, wherein the tool bit (4) of the long depth annular hole tool in step 4) is coated with a layer of wear resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548682.1A CN112719371A (en) | 2020-12-24 | 2020-12-24 | Long-depth annular hole machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548682.1A CN112719371A (en) | 2020-12-24 | 2020-12-24 | Long-depth annular hole machining method |
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| Publication Number | Publication Date |
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| CN112719371A true CN112719371A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011548682.1A Pending CN112719371A (en) | 2020-12-24 | 2020-12-24 | Long-depth annular hole machining method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1386266A (en) * | 1971-06-22 | 1975-03-05 | Goude J M A | Method of connecting parts edge to edge |
| US5218888A (en) * | 1989-09-27 | 1993-06-15 | Rotabroach Limited | Annular hole cutter |
| CN200942431Y (en) * | 2006-09-05 | 2007-09-05 | 太原钢铁(集团)有限公司 | Ring type deep trough turning tool |
| CN102335760A (en) * | 2010-07-27 | 2012-02-01 | 上海锅炉厂有限公司 | Cut-off tool and method for machining end-face circular deep groove |
| CN104785795A (en) * | 2015-04-30 | 2015-07-22 | 衡阳风顺车桥有限公司 | Machining method for deep and narrow annular groove |
| CN109290592A (en) * | 2018-11-14 | 2019-02-01 | 中国航发动力股份有限公司 | A kind of deeply narrow annular groove tool in resilient bearing seat end face and processing method |
| CN110102788A (en) * | 2018-12-05 | 2019-08-09 | 中国航发贵州红林航空动力控制科技有限公司 | The processing method and cutter for same of a kind of deep hole bottom surface annular groove |
| CN210387700U (en) * | 2019-07-26 | 2020-04-24 | 山东国晶新材料有限公司 | Graphite pipe deep and narrow ring groove double-edge welding type trepanning drill tool |
| CN210648541U (en) * | 2019-09-11 | 2020-06-02 | 恩欣格工程塑料（上海）有限公司 | Lengthened welding lathe tool for machining end face annular groove on numerical control lathe |
-
2020
- 2020-12-24 CN CN202011548682.1A patent/CN112719371A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1386266A (en) * | 1971-06-22 | 1975-03-05 | Goude J M A | Method of connecting parts edge to edge |
| US5218888A (en) * | 1989-09-27 | 1993-06-15 | Rotabroach Limited | Annular hole cutter |
| CN200942431Y (en) * | 2006-09-05 | 2007-09-05 | 太原钢铁(集团)有限公司 | Ring type deep trough turning tool |
| CN102335760A (en) * | 2010-07-27 | 2012-02-01 | 上海锅炉厂有限公司 | Cut-off tool and method for machining end-face circular deep groove |
| CN104785795A (en) * | 2015-04-30 | 2015-07-22 | 衡阳风顺车桥有限公司 | Machining method for deep and narrow annular groove |
| CN109290592A (en) * | 2018-11-14 | 2019-02-01 | 中国航发动力股份有限公司 | A kind of deeply narrow annular groove tool in resilient bearing seat end face and processing method |
| CN110102788A (en) * | 2018-12-05 | 2019-08-09 | 中国航发贵州红林航空动力控制科技有限公司 | The processing method and cutter for same of a kind of deep hole bottom surface annular groove |
| CN210387700U (en) * | 2019-07-26 | 2020-04-24 | 山东国晶新材料有限公司 | Graphite pipe deep and narrow ring groove double-edge welding type trepanning drill tool |
| CN210648541U (en) * | 2019-09-11 | 2020-06-02 | 恩欣格工程塑料（上海）有限公司 | Lengthened welding lathe tool for machining end face annular groove on numerical control lathe |
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Application publication date: 20210430 |