CN104841990A - Machining method of H-shaped thin-wall parts - Google Patents
Machining method of H-shaped thin-wall parts Download PDFInfo
- Publication number
- CN104841990A CN104841990A CN201510223017.8A CN201510223017A CN104841990A CN 104841990 A CN104841990 A CN 104841990A CN 201510223017 A CN201510223017 A CN 201510223017A CN 104841990 A CN104841990 A CN 104841990A
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- cutter
- blank assembly
- machining
- machine tool
- roughing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/60—Roughing
- B23C2220/605—Roughing and finishing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention provides a machining method of H-shaped thin-wall parts. The machining method includes selecting tri-blade taper-shank rough-machining milling cutters and fine-machining milling cutters according to groove depth, part height and groove width of H-shaped thin-wall parts to be machined, wherein the diameter of the milling cutters ranges from one second of the groove width to the groove width minus two, and roughness of the grinding positions of cutting edges of the fine-machining milling cutters is not higher than Ra 0.4; setting groove depth, groove width and three to eight layers of rough-machining layers on a numerical-control machine tool, setting the thickness of the rough-machining layers at 2-3 millimeters and the fine-machining allowance at 0.5-1 millimeters; setting linear speed and cutting feed of rotation of a spindle of the numerical-control machine tool, wherein linear speed and cutting feed of rough machining are 200-230 m/min and 70-74 mm/min respectively, and those of fine machining are 305-370 m/min and 100/115 mm/min respectively. By the machining method of the H-shaped thin-wall parts, machining procedures of parts are simplified.
Description
Technical field
The present invention relates to a kind of processing method of I shape thin-walled parts, belong to field of mechanical technique.
Background technology
Along with Machine Design industry requires to improve constantly to properties of product, the total class of thin-walled parts quantity increases a kind of trend becoming machine industry gradually, to the crudy of thin-walled parts and required precision also more and more higher.As I shape thin-walled parts, part base is all thin-walled, the clamping thin-walled bases such as soft pawl conventional during milling or vice, and add man-hour thin-walled parts and be easily out of shape, the part quality of processing is unstable; Next is that part handling are wasted time and energy, and procedure of processing is loaded down with trivial details, and working (machining) efficiency is low; Thirdly that this kind of part requirements of handling has skilled professional skill.This, with regard to needing a kind of good processing method to improve the processing technology of this kind of part, improves its crudy and efficiency.
Summary of the invention
For overcoming the defect of prior art, the invention provides a kind of processing method of I shape thin-walled parts.
Technical scheme of the present invention is: a kind of processing method of I shape thin-walled parts, a, selection cutter: according to groove depth (C), part high (H), the groove width (W) of the I shape thin-walled parts that will process, milling cutter diameter is the 1/2 ~ groove width (W)-2 of groove width (W), select spear-point drill handle heavy-duty cutter and finishing cutter, its cutting edge grinding place roughness of finishing cutter is not more than Ra0.4;
B, the groove depth (C) that Digit Control Machine Tool sets part, groove width (W), the roughing number of plies 3 ~ 8 layers, the allowance for finish of roughing layer thickness 2 ~ 3 millimeters and 0.5 ~ 1 millimeter;
The linear velocity that c, setting main shaft of numerical control machine tool rotate and cutting feeding, rough machined linear velocity and cutting feeding are respectively 200 ~ 230m/min, 70 ~ 74mm/min, and accurately machined linear velocity and cutting feeding are respectively 305 ~ 370m/min, 100 ~ 115mm/min;
D, parts fixation: the blank end face of two parts is close to composition blank assembly to end face, a cushion block is placed between two jaws of vice, blank assembly is placed on cushion block, the height of adjustment cushion block, it is high that blank assembly exceeds vice jaw upper surface 1/4 part, rotates and tighten the two jaw clamping blank assemblies that screw rod makes vice;
E, there is the vice of blank assembly to be placed on the workbench of Digit Control Machine Tool clamping, adjust the position of heavy-duty cutter and blank assembly, make the blade of heavy-duty cutter aim at the cutting starting point of blank assembly, vice is fixed tightly on the workbench of Digit Control Machine Tool;
F, roughing: start Digit Control Machine Tool, with the rough machined linear velocity 200 ~ 230m/min of setting, cut feeding 65 ~ 74mm/min, roughing layer thickness 2 ~ 3 millimeters and the roughing number of plies 4 ~ 7 layers, heavy-duty cutter is from one end feed of blank assembly until the other end of blank assembly, the milling cutter trend of initiating terminal got back to by backward feed again, roughing is carried out to blank assembly, repetition milling cutter moves towards, successively cut a to the last machined layer, roughing terminates, and bottom land and cell wall leave 0.5 ~ 1 millimeter of allowance for finish respectively;
G, fine finishining: take off heavy-duty cutter, finishing cutter is contained on knife rest, start Digit Control Machine Tool, with the accurately machined linear velocity 300 ~ 370m/min of setting and cutting feeding 100 ~ 115mm/min, finishing cutter from blank assembly one end along rough machined groove feed until the other end of blank assembly, reverse milling cutter trend of getting back to initiating terminal along rough machined groove feed again, carry out cutting fine finishining to rough machined bottom land and cell wall, when meeting the requirements of precision, fine finishining terminates;
Screw rod is tightened in h, rotation, unclamps two jaws of vice, takes off two the I shape thin-walled parts censorship processed, be up to the standards, the process finishing of part.
The processing method of this I shape thin-walled parts that the present invention relates to, adopt cushion block to support, vice clamps paired part, and part is easy to loading and unloading, processing technology is simple; Process with the direct clamping thin-walled base such as soft pawl or vice the thin-walled parts distortion caused when eliminating milling; Simplify the manufacturing procedure of part, paired processing, I shape thin-walled parts symmetry is good, low amount of feeding layered milling and rigidity installation way, reduce the vibration of cutter and part, improve crudy and the working (machining) efficiency of I shape thin-walled parts, reduce loss and the processing charges of cutter, be applicable to large-scale production and processing.
Detailed description of the invention
A processing method for I shape thin-walled parts, described processing method comprises the following steps:
A, selection cutter: according to groove depth (C), part high (H), the groove width (W) of the I shape thin-walled parts that will process, milling cutter diameter is the 1/2 ~ groove width (W)-2 of groove width (W), select spear-point drill handle heavy-duty cutter and finishing cutter, its cutting edge grinding place roughness of finishing cutter is not more than Ra0.4;
B, the groove depth (C) that Digit Control Machine Tool sets part, groove width (W), the roughing number of plies 3 ~ 8 layers, the allowance for finish of roughing layer thickness 2 ~ 3 millimeters and 0.5 ~ 1 millimeter;
The linear velocity that c, setting main shaft of numerical control machine tool rotate and cutting feeding, rough machined linear velocity and cutting feeding are respectively 200 ~ 230m/min, 70 ~ 74mm/min, and accurately machined linear velocity and cutting feeding are respectively 305 ~ 370m/min, 100 ~ 115mm/min;
D, parts fixation: the blank end face of two parts is close to composition blank assembly to end face, a cushion block is placed between two jaws of vice, blank assembly is placed on cushion block, the height of adjustment cushion block, it is high that blank assembly exceeds vice jaw upper surface 1/4 part, rotates and tighten the two jaw clamping blank assemblies that screw rod makes vice;
E, there is the vice of blank assembly to be placed on the workbench of Digit Control Machine Tool clamping, adjust the position of heavy-duty cutter and blank assembly, make the blade of heavy-duty cutter aim at the cutting starting point of blank assembly, vice is fixed tightly on the workbench of Digit Control Machine Tool;
F, roughing: start Digit Control Machine Tool, with the rough machined linear velocity 200 ~ 230m/min of setting, cut feeding 65 ~ 74mm/min, roughing layer thickness 2 ~ 3 millimeters and the roughing number of plies 4 ~ 7 layers, heavy-duty cutter is from one end feed of blank assembly until the other end of blank assembly, the milling cutter trend of initiating terminal got back to by backward feed again, roughing is carried out to blank assembly, repetition milling cutter moves towards, successively cut a to the last machined layer, roughing terminates, and bottom land and cell wall leave 0.5 ~ 1 millimeter of allowance for finish respectively;
G, fine finishining: take off heavy-duty cutter, finishing cutter is contained on knife rest, start Digit Control Machine Tool, with the accurately machined linear velocity 300 ~ 370m/min of setting and cutting feeding 100 ~ 115mm/min, finishing cutter from blank assembly one end along rough machined groove feed until the other end of blank assembly, reverse milling cutter trend of getting back to initiating terminal along rough machined groove feed again, carry out cutting fine finishining to rough machined bottom land and cell wall, when meeting the requirements of precision, fine finishining terminates;
Screw rod is tightened in h, rotation, unclamps two jaws of vice, takes off two the I shape thin-walled parts censorship processed, be up to the standards, the process finishing of part.
The processing method of this I shape thin-walled parts that the present invention relates to, adopt cushion block to support, vice clamps paired part, and part is easy to loading and unloading, processing technology is simple; Process with the direct clamping thin-walled base such as soft pawl or vice the thin-walled parts distortion caused when eliminating milling; Simplify the manufacturing procedure of part, paired processing, I shape thin-walled parts symmetry is good, low amount of feeding layered milling and rigidity installation way, reduce the vibration of cutter and part, improve crudy and the working (machining) efficiency of I shape thin-walled parts, reduce loss and the processing charges of cutter, be applicable to large-scale production and processing.
Claims (1)
1. a processing method for I shape thin-walled parts, is characterized in that: described processing method comprises the following steps:
A, selection cutter: according to groove depth (C), part high (H), the groove width (W) of the I shape thin-walled parts that will process, milling cutter diameter is the 1/2 ~ groove width (W)-2 of groove width (W), select spear-point drill handle heavy-duty cutter and finishing cutter, its cutting edge grinding place roughness of finishing cutter is not more than Ra0.4;
B, the groove depth (C) that Digit Control Machine Tool sets part, groove width (W), the roughing number of plies 3 ~ 8 layers, the allowance for finish of roughing layer thickness 2 ~ 3 millimeters and 0.5 ~ 1 millimeter;
The linear velocity that c, setting main shaft of numerical control machine tool rotate and cutting feeding, rough machined linear velocity and cutting feeding are respectively 200 ~ 230m/min, 70 ~ 74mm/min, and accurately machined linear velocity and cutting feeding are respectively 305 ~ 370m/min, 100 ~ 115mm/min;
D, parts fixation: the blank end face of two parts is close to composition blank assembly to end face, a cushion block is placed between two jaws of vice, blank assembly is placed on cushion block, the height of adjustment cushion block, it is high that blank assembly exceeds vice jaw upper surface 1/4 part, rotates and tighten the two jaw clamping blank assemblies that screw rod makes vice;
E, there is the vice of blank assembly to be placed on the workbench of Digit Control Machine Tool clamping, adjust the position of heavy-duty cutter and blank assembly, make the blade of heavy-duty cutter aim at the cutting starting point of blank assembly, vice is fixed tightly on the workbench of Digit Control Machine Tool;
F, roughing: start Digit Control Machine Tool, with the rough machined linear velocity 200 ~ 230m/min of setting, cut feeding 65 ~ 74mm/min, roughing layer thickness 2 ~ 3 millimeters and the roughing number of plies 4 ~ 7 layers, heavy-duty cutter is from one end feed of blank assembly until the other end of blank assembly, the milling cutter trend of initiating terminal got back to by backward feed again, roughing is carried out to blank assembly, repetition milling cutter moves towards, successively cut a to the last machined layer, roughing terminates, and bottom land and cell wall leave 0.5 ~ 1 millimeter of allowance for finish respectively;
G, fine finishining: take off heavy-duty cutter, finishing cutter is contained on knife rest, start Digit Control Machine Tool, with the accurately machined linear velocity 300 ~ 370m/min of setting and cutting feeding 100 ~ 115mm/min, finishing cutter from blank assembly one end along rough machined groove feed until the other end of blank assembly, reverse milling cutter trend of getting back to initiating terminal along rough machined groove feed again, carry out cutting fine finishining to rough machined bottom land and cell wall, when meeting the requirements of precision, fine finishining terminates;
Screw rod is tightened in h, rotation, unclamps two jaws of vice, takes off two the I shape thin-walled parts censorship processed, be up to the standards, the process finishing of part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510223017.8A CN104841990A (en) | 2015-05-05 | 2015-05-05 | Machining method of H-shaped thin-wall parts |
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| CN201510223017.8A CN104841990A (en) | 2015-05-05 | 2015-05-05 | Machining method of H-shaped thin-wall parts |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107971534A (en) * | 2017-11-24 | 2018-05-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of processing method of circumference high-efficient milling Deformation control |
| CN108067664A (en) * | 2017-12-19 | 2018-05-25 | 中国航发湖南南方宇航工业有限公司 | A kind of milling plane processing method |
| CN108941684A (en) * | 2018-08-31 | 2018-12-07 | 武汉船用机械有限责任公司 | A kind of processing method of the kidney-shaped skewed slot of annular thin-wall parts |
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| CN1562542A (en) * | 2004-03-31 | 2005-01-12 | 沈阳工业学院 | Fast automatic processing method utilized in lathe and milling machine for large thin wall part with cylindrical grids |
| CN101602122A (en) * | 2009-07-15 | 2009-12-16 | 天津商业大学 | A kind of precision numerical control milling method for thin-wall parts |
| JP2012213836A (en) * | 2011-03-31 | 2012-11-08 | Mitsubishi Heavy Ind Ltd | Vacuum suction type support jig, machining method of plate-shaped workpiece using the jig, and machined workpiece |
| CN104493274A (en) * | 2014-12-24 | 2015-04-08 | 王友群 | Formed milling cutter and milling forming method using same |
| CN104526030A (en) * | 2014-12-08 | 2015-04-22 | 湖南南方宇航工业有限公司 | Processing method for T-shaped thin-walled parts |
-
2015
- 2015-05-05 CN CN201510223017.8A patent/CN104841990A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562542A (en) * | 2004-03-31 | 2005-01-12 | 沈阳工业学院 | Fast automatic processing method utilized in lathe and milling machine for large thin wall part with cylindrical grids |
| CN101602122A (en) * | 2009-07-15 | 2009-12-16 | 天津商业大学 | A kind of precision numerical control milling method for thin-wall parts |
| JP2012213836A (en) * | 2011-03-31 | 2012-11-08 | Mitsubishi Heavy Ind Ltd | Vacuum suction type support jig, machining method of plate-shaped workpiece using the jig, and machined workpiece |
| CN104526030A (en) * | 2014-12-08 | 2015-04-22 | 湖南南方宇航工业有限公司 | Processing method for T-shaped thin-walled parts |
| CN104493274A (en) * | 2014-12-24 | 2015-04-08 | 王友群 | Formed milling cutter and milling forming method using same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107971534A (en) * | 2017-11-24 | 2018-05-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of processing method of circumference high-efficient milling Deformation control |
| CN107971534B (en) * | 2017-11-24 | 2019-03-22 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of processing method of circumference high-efficient milling Deformation control |
| CN108067664A (en) * | 2017-12-19 | 2018-05-25 | 中国航发湖南南方宇航工业有限公司 | A kind of milling plane processing method |
| CN108067664B (en) * | 2017-12-19 | 2019-04-02 | 中国航发湖南南方宇航工业有限公司 | A kind of milling plane processing method |
| CN108941684A (en) * | 2018-08-31 | 2018-12-07 | 武汉船用机械有限责任公司 | A kind of processing method of the kidney-shaped skewed slot of annular thin-wall parts |
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Application publication date: 20150819 |