CN113172400B - Production process of special cutter for machining end face deep ring groove - Google Patents
Production process of special cutter for machining end face deep ring groove Download PDFInfo
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- CN113172400B CN113172400B CN202110582863.4A CN202110582863A CN113172400B CN 113172400 B CN113172400 B CN 113172400B CN 202110582863 A CN202110582863 A CN 202110582863A CN 113172400 B CN113172400 B CN 113172400B
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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
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/06—Profile cutting tools, i.e. forming-tools
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Abstract
The invention provides a production process of a special cutter for machining end face deep ring grooves, which comprises the following process steps: (1) selecting materials: (2) roughly processing the appearance; (3) carrying out shape heat treatment; (4) cleaning and drying; (5) tempering; (6) semi-finishing; (7) heat treatment; (8) carrying out primary fine machining; (9) performing secondary fine machining; (10) surface treatment (11), oiling and preservation. The special cutter produced by the production process has the tensile strength of more than or equal to 1000MPa, the yield strength of more than or equal to 800MPa and the surface reference hardness HBW300-330, has no cutter connecting trace at the positions of the shaft diameter and the end surface cutter connecting position when in use, can be smoothly and smoothly connected, has stable use performance, is processed into a fillet at a right angle position, enhances the structural rigidity, prevents stress fracture in use, has low cost, greatly improves the labor efficiency and reduces the labor intensity of workers.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a production process of a special cutter for machining end face deep ring grooves.
Background
Because the complexity of product structure, nonstandard, the rationality scheduling problem of design, lead to many singlets products to integrate multiple work piece function, for example, the deep annular groove structure of axle type work piece terminal surface of major diameter ratio, because the reason of tailstock, ordinary cutter is because of length and intensity problem, there is the condition of interference, too deep size leads to the depth of finish of cutter not enough, if change to and mill processing, can cause the increase of cost, some annular need be with the axle in addition and meet, mill preface processing because of the unable complete solution of cutter rigidity scheduling problem. The special cutter for processing the end face deep ring groove is designed to solve the problems, the cutter can realize processing of various end face deep ring grooves, the traditional lathe processing mode of the cutter has the conditions of interference, insufficient cutter length and the like, the milling process is high in rejection rate due to overlarge cutter receiving traces, the customized special milling cutter is high in cost and low in efficiency, and the processing scale is difficult to form.
Disclosure of Invention
In order to solve the problems, the invention provides a production process of a special cutter for machining end face deep ring grooves.
The technical scheme of the invention is realized as follows: a production process of a special tool for machining end face deep ring grooves comprises an integrally formed tool rest, the tool rest comprises a tool rest body at the rear end, the front end of the tool rest body is connected with a pressing portion, a supporting portion is arranged at the lower end of the pressing portion, a tool guide groove B is arranged at the left end of the supporting portion, a tool guide groove A is arranged at the pressing portion above the supporting portion, a blade guide groove A is arranged on the upper surface of a blade, a blade guide groove B is arranged on the lower surface of the blade, the blade is arranged in the tool guide groove B at the left end of the supporting portion, the blade is pressed through the pressing portion above the blade, the tool guide groove A on the blade is matched with the tool guide groove A on the supporting portion, the blade guide groove B on the blade is matched with the tool guide groove A on the pressing portion, and the pressing portion is fixedly connected with the supporting portion below through a pressing bolt; the lower end of a right angle part where the tool rest body is connected with the pressing part and the supporting part is designed to be an arc body, and the production process of the special tool for machining the end surface deep ring groove comprises the following process steps:
(1) selecting materials: selecting 40Cr alloy steel;
(2) rough machining of the appearance: roughly machining the outline of the cutter by using a machining center, wherein the single side allowance is 2 mm;
(3) and (3) profile heat treatment: quenching and tempering the outline of the rough-machined cutter to ensure that the tensile strength is more than or equal to 1000MPa, the yield strength is more than or equal to 800MPa and the surface reference hardness is HBW300-330, putting the outline of the cutter and a detection test block into a sealed box type controlled atmosphere multipurpose furnace of heat treatment equipment for heat treatment, wherein the quenching temperature is 850-860 ℃ in the heat treatment process, preserving heat for 1 hour after reaching the temperature, performing oil cooling by using KR118H quenching oil, wherein the oil temperature is 40-60 ℃, the oil cooling time is 15 minutes, and then draining oil for 15 minutes;
(4) cleaning and drying: conveying the tool outline and the detection test block after oil draining to a front chamber of a cleaning machine for spraying for 2 minutes, foaming for 2 minutes, spraying for 2 minutes, conveying the tool outline and the detection test block to a rear chamber of the cleaning machine for antirust spraying for 2 minutes, and drying for 12 minutes;
(5) tempering: reheating the dried cutter shape outline and the detection test block, keeping the temperature at 510 +/-10 ℃ for 2 hours at the temperature, then carrying out air cooling, and using nitrogen for protection in the whole process; at the moment, the surface hardness is detected through a Brinell hardness tester, the mechanical property of the furnace detection test block is detected, and semi-finish machining is carried out after the detection is qualified;
(6) semi-finishing: the contour of the cutter is processed by semi-finishing through a processing center, a cutter square 25 is processed and formed, and the single side of the arc part at the left end of the cutter is left by 0.5 mm;
(6) and (3) heat treatment: carrying out high-frequency quenching and tempering treatment on the arc-shaped part at the left end of the semi-finishing cutter, wherein the hardness reaches HRC 40-45:
quenching treatment: a high-frequency furnace, wherein the power frequency is 200-250 kHz, the anode voltage is 7kV, the anode current is 7A, the product preheating time is 4 seconds, the PAG solution is sprayed during quenching for cooling, and the solution temperature is less than or equal to 40 ℃;
tempering treatment: tempering in a tempering furnace at 320 +/-10 ℃ for 180 minutes, and then air cooling;
(7) and fine machining for the first time: cutting and shaping the cutter by using linear cutting;
(8) and secondary fine machining: the position which cannot be machined by linear cutting, such as the position where the lower end of the right angle position where the tool rest body is connected with the pressing part and the supporting part needs to be machined into an arc body, a CBN cutter is used for finish milling;
(9) surface treatment: blackening the surface of the cutter;
(10) oiling and storing.
The invention has the beneficial effects that: the special cutter produced by the production process has the tensile strength of more than or equal to 1000MPa, the yield strength of more than or equal to 800MPa and the surface reference hardness HBW300-330, has no cutter connecting trace at the positions of the shaft diameter and the end surface cutter connecting position when in use, can be smoothly and smoothly connected, has stable use performance, is processed into a fillet at a right angle position, enhances the structural rigidity, prevents stress fracture in use, has low cost, greatly improves the labor efficiency and reduces the labor intensity of workers.
Drawings
FIG. 1 is a first schematic structural diagram of a special cutting tool according to the present invention;
FIG. 2 is a second schematic structural diagram of the special cutting tool of the present invention.
Description of the parts: 1. the tool rest comprises a tool rest body 11, a tool rest body 12, a pressing part 13, a supporting part 14, tool guide grooves A and 15, tool guide grooves B and 16, a close surface 2, blades 21, tail end surfaces 22, blade guide grooves A and 23, blade guide grooves B and 24, a tool nose 3, a pressing bolt 4 and an arc part.
Detailed Description
For better understanding and implementation, the production process of the special tool for machining the end-face deep ring groove is further described in the following with reference to the attached drawings:
a production process of a special tool for processing an end face deep ring groove comprises the steps of forming a tool rest 1 integrally, wherein the tool rest 1 comprises a tool rest body 11 at the rear end, the front end of the tool holder body 11 is connected with a pressing part 12, the lower end of the pressing part 12 is provided with a supporting part 13, a cutter guide groove B15 is formed in the left end of the supporting part 13, a cutter guide groove A14 is formed in the corresponding pressing part 12 above the supporting part 13, a blade guide groove A22 is formed in the upper surface of the blade 2, a blade guide groove B23 is formed in the lower surface of the blade 2, the blade 2 is arranged in the cutter guide groove B15 in the left end of the supporting part 13, the blade 2 is pressed through the pressing part 12 from above, a blade guide groove A22 on the blade 2 is matched with the cutter guide groove A14 on the supporting part 13, a blade guide groove B23 on the blade 2 is matched with the cutter guide groove A14 of the pressing part 12, and the pressing part 12 is fixedly connected with the supporting part 13 below through a pressing bolt 3; the lower end of the right angle part where the tool holder body 11 is connected with the pressing part 12 and the supporting part 13 is set to be an arc body 4, and the production process of the special tool for machining the end surface deep ring groove comprises the following process steps:
the production process of the special cutter for machining the end surface deep ring groove comprises the following process steps:
(1) selecting materials: selecting 40Cr alloy steel;
(2) rough machining of the appearance: roughly machining the outline of the cutter by using a machining center, wherein the single side allowance is 2 mm;
(3) and (3) profile heat treatment: quenching and tempering the outline of the rough-machined cutter to ensure that the tensile strength is more than or equal to 1000MPa, the yield strength is more than or equal to 800MPa and the surface reference hardness is HBW300-330, putting the outline of the cutter and a detection test block into a sealed box type controlled atmosphere multipurpose furnace of heat treatment equipment for heat treatment, wherein the quenching temperature is 850-860 ℃ in the heat treatment process, preserving heat for 1 hour after reaching the temperature, performing oil cooling by using KR118H quenching oil, wherein the oil temperature is 40-60 ℃, the oil cooling time is 15 minutes, and then draining oil for 15 minutes;
(4) cleaning and drying: conveying the tool outline and the detection test block after oil draining to a front chamber of a cleaning machine for spraying for 2 minutes, foaming for 2 minutes, spraying for 2 minutes, conveying the tool outline and the detection test block to a rear chamber of the cleaning machine for antirust spraying for 2 minutes, and drying for 12 minutes;
(5) tempering: reheating the dried cutter shape outline and the detection test block, keeping the temperature at 510 +/-10 ℃ for 2 hours at the temperature, then carrying out air cooling, and using nitrogen for protection in the whole process; at the moment, the surface hardness is detected through a Brinell hardness tester, the mechanical property of the furnace detection test block is detected, and semi-finish machining is carried out after the detection is qualified;
(6) semi-finishing: the contour of the cutter is processed by semi-finishing through a processing center, a cutter square 25 is processed and formed, and the single side of the arc part at the left end of the cutter is left by 0.5 mm;
(6) and (3) heat treatment: carrying out high-frequency quenching and tempering treatment on the arc-shaped part at the left end of the semi-finishing cutter, wherein the hardness reaches HRC 40-45:
quenching treatment: a high-frequency furnace, wherein the power frequency is 200-250 kHz, the anode voltage is 7kV, the anode current is 7A, the product preheating time is 4 seconds, the PAG solution is sprayed during quenching for cooling, and the solution temperature is less than or equal to 40 ℃;
tempering treatment: tempering in a tempering furnace at 320 +/-10 ℃ for 180 minutes, and then air cooling;
(7) and fine machining for the first time: cutting and shaping the cutter by using linear cutting;
(8) and secondary fine machining: the position which cannot be machined by linear cutting, such as the position where the lower end of the right angle position where the tool rest body is connected with the pressing part and the supporting part needs to be machined into an arc body, a CBN cutter is used for finish milling;
(9) surface treatment: blackening the surface of the cutter;
(10) oiling and storing.
Claims (1)
1. The utility model provides a production technology of the dark annular special tool of processing terminal surface, the deep annular special tool of processing terminal surface includes integrated into one piece's knife rest (1), knife rest (1) includes the tool rest body (11) of rear end, tool rest body (11) front end links to each other with portion (12) that compresses tightly, portion (12) lower extreme that compresses tightly is equipped with supporting part (13), supporting part (13) left end is equipped with cutter guide way B (15), and corresponding portion (12) department of compressing tightly in supporting part (13) top is equipped with cutter guide way A (14), and blade (2) upper surface is equipped with blade guide way A (22), and blade (2) lower surface is equipped with blade guide way B (23), and blade (2) are settled in the cutter guide way B (15) of supporting part (13) left end, and the top compresses tightly blade (2) through portion (12), and blade guide way A (22) on blade (2) and the cutter guide way A (14) on supporting part (13) cooperate, a blade guide groove B (23) on the blade (2) is matched with a cutter guide groove A (14) of the pressing part (12), and the pressing part (12) is fixedly connected with a supporting part (13) below through a pressing bolt (3); the lower end of the right-angle part where the knife rest body (11) is connected with the pressing part (12) and the supporting part (13) is provided with an arc body (4),
the production process of the special cutter for machining the end surface deep ring groove comprises the following process steps:
(1) selecting materials: selecting 40Cr alloy steel;
(2) rough machining of the appearance: roughly machining the outline of the cutter by using a machining center, wherein the single side allowance is 2 mm;
(3) and (3) profile heat treatment: quenching and tempering the outline of the rough-machined cutter to ensure that the tensile strength is more than or equal to 1000MPa, the yield strength is more than or equal to 800MPa and the surface reference hardness is HBW300-330, putting the outline of the cutter and a detection test block into a sealed box type controlled atmosphere multipurpose furnace of heat treatment equipment for heat treatment, wherein the quenching temperature is 850-860 ℃ in the heat treatment process, preserving heat for 1 hour after reaching the temperature, performing oil cooling by using KR118H quenching oil, wherein the oil temperature is 40-60 ℃, the oil cooling time is 15 minutes, and then draining oil for 15 minutes;
(4) cleaning and drying: conveying the tool outline and the detection test block after oil draining to a front chamber of a cleaning machine for spraying for 2 minutes, foaming for 2 minutes, spraying for 2 minutes, conveying the tool outline and the detection test block to a rear chamber of the cleaning machine for antirust spraying for 2 minutes, and drying for 12 minutes;
(5) tempering: reheating the dried cutter shape outline and the detection test block, keeping the temperature at 510 +/-10 ℃ for 2 hours at the temperature, then carrying out air cooling, and using nitrogen for protection in the whole process; at the moment, the surface hardness is detected through a Brinell hardness tester, the mechanical property of the furnace detection test block is detected, and semi-finish machining is carried out after the detection is qualified;
(6) semi-finishing: the contour of the cutter is processed by semi-finishing through a processing center, a cutter square 25 is processed and formed, and the single side of the arc part at the left end of the cutter is left by 0.5 mm;
(7) and (3) heat treatment: carrying out high-frequency quenching and tempering treatment on the arc-shaped part at the left end of the semi-finishing cutter, wherein the hardness reaches HRC 40-45:
quenching treatment: a high-frequency furnace, wherein the power frequency is 200-250 kHz, the anode voltage is 7kV, the anode current is 7A, the product preheating time is 4 seconds, the PAG solution is sprayed during quenching for cooling, and the solution temperature is less than or equal to 40 ℃;
tempering treatment: tempering in a tempering furnace at 320 +/-10 ℃ for 180 minutes, and then air cooling;
(8) and fine machining for the first time: cutting and shaping the cutter by using linear cutting;
(9) and secondary fine machining: the lower end of the right angle part where the tool rest body is connected with the pressing part and the supporting part is processed into an arc body, and a CBN cutter is used for finish milling;
(10) surface treatment: blackening the surface of the cutter;
(11) oiling and storing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582863.4A CN113172400B (en) | 2021-05-27 | 2021-05-27 | Production process of special cutter for machining end face deep ring groove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110582863.4A CN113172400B (en) | 2021-05-27 | 2021-05-27 | Production process of special cutter for machining end face deep ring groove |
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| Publication Number | Publication Date |
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| CN113172400A CN113172400A (en) | 2021-07-27 |
| CN113172400B true CN113172400B (en) | 2022-03-15 |
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| CN202110582863.4A Active CN113172400B (en) | 2021-05-27 | 2021-05-27 | Production process of special cutter for machining end face deep ring groove |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2182799A (en) * | 1938-05-28 | 1939-12-12 | Budd Wheel Co | Heat treating machine tool |
| CN201815679U (en) * | 2010-09-15 | 2011-05-04 | 浙江工业职业技术学院 | Movable inner groove knife for adjusting machine clamp |
| CN201906838U (en) * | 2010-08-31 | 2011-07-27 | 胡国强 | Assembled end surface ring groove turning tool |
| CN102152088A (en) * | 2011-01-30 | 2011-08-17 | 盐城市金洲机械制造有限公司 | Processing technique of oil pump gear and extruding knife used thereby |
| CN102632251A (en) * | 2012-05-16 | 2012-08-15 | 西安煤矿机械有限公司 | Annular deep narrow groove turning knife tool of round workpeice end surface for horizontal lathe and use method |
| CN204209144U (en) * | 2014-09-30 | 2015-03-18 | 株洲欧科亿硬质合金有限公司 | A kind of for slotting or the cutting element of turning operation and assembly |
| CN104972150A (en) * | 2015-07-10 | 2015-10-14 | 成都力鑫科技有限公司 | Multi-azimuth feed cutter bar manufacturing process capable of avoiding machining interference |
| CN111702187A (en) * | 2020-04-12 | 2020-09-25 | 山东祥德机电有限公司 | Lathe tool device used after carburizing and quenching of hydraulic breaking hammer cylinder body and machining method |
-
2021
- 2021-05-27 CN CN202110582863.4A patent/CN113172400B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2182799A (en) * | 1938-05-28 | 1939-12-12 | Budd Wheel Co | Heat treating machine tool |
| CN201906838U (en) * | 2010-08-31 | 2011-07-27 | 胡国强 | Assembled end surface ring groove turning tool |
| CN201815679U (en) * | 2010-09-15 | 2011-05-04 | 浙江工业职业技术学院 | Movable inner groove knife for adjusting machine clamp |
| CN102152088A (en) * | 2011-01-30 | 2011-08-17 | 盐城市金洲机械制造有限公司 | Processing technique of oil pump gear and extruding knife used thereby |
| CN102632251A (en) * | 2012-05-16 | 2012-08-15 | 西安煤矿机械有限公司 | Annular deep narrow groove turning knife tool of round workpeice end surface for horizontal lathe and use method |
| CN204209144U (en) * | 2014-09-30 | 2015-03-18 | 株洲欧科亿硬质合金有限公司 | A kind of for slotting or the cutting element of turning operation and assembly |
| CN104972150A (en) * | 2015-07-10 | 2015-10-14 | 成都力鑫科技有限公司 | Multi-azimuth feed cutter bar manufacturing process capable of avoiding machining interference |
| CN111702187A (en) * | 2020-04-12 | 2020-09-25 | 山东祥德机电有限公司 | Lathe tool device used after carburizing and quenching of hydraulic breaking hammer cylinder body and machining method |
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| CN113172400A (en) | 2021-07-27 |
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