CN104841989A - Machining method of H-shaped thin-wall parts - Google Patents

Machining method of H-shaped thin-wall parts Download PDF

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Publication number
CN104841989A
CN104841989A CN201510222942.9A CN201510222942A CN104841989A CN 104841989 A CN104841989 A CN 104841989A CN 201510222942 A CN201510222942 A CN 201510222942A CN 104841989 A CN104841989 A CN 104841989A
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China
Prior art keywords
cutter
blank assembly
machining
vice
heavy
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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
Application number
CN201510222942.9A
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Chinese (zh)
Inventor
潘承民
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Liuzhou Agriculture-Countryside-Farmer Science And Technology Ltd
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Liuzhou Agriculture-Countryside-Farmer Science And Technology Ltd
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Priority to CN201510222942.9A priority Critical patent/CN104841989A/en
Publication of CN104841989A publication Critical patent/CN104841989A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • B23Q3/065Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material

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; 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; roughly machining, finely machining and then finely machining again. By the machining method of the H-shaped thin-wall parts, machining procedures of parts are simplified.

Description

The processing method of I shape thin-walled parts
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, 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, blank assembly exceeds vice jaw upper surface 1/4 part high (D), rotates and tightens 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, unclamp two jaws of vice, by blank assembly upset 1800, bear against on cushion block with the bottom land after processing, the height of adjustment cushion block, blank assembly exceeds vice jaw upper surface 1/4 part high (D), rotates and tightens the two jaw clamping blank assemblies that screw rod makes vice;
I, take off finishing cutter, heavy-duty cutter is contained on knife rest, adjusts 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;
J, startup 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 k, 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, blank assembly exceeds vice jaw upper surface 1/4 part high (D), rotates and tightens 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, unclamp two jaws of vice, by blank assembly upset 1800, bear against on cushion block with the bottom land after processing, the height of adjustment cushion block, blank assembly exceeds vice jaw upper surface 1/4 part high (D), rotates and tightens the two jaw clamping blank assemblies that screw rod makes vice;
I, take off finishing cutter, heavy-duty cutter is contained on knife rest, adjusts 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;
J, startup 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 k, 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:
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, blank assembly exceeds vice jaw upper surface 1/4 part high (D), rotates and tightens 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, unclamp two jaws of vice, by blank assembly upset 1800, bear against on cushion block with the bottom land after processing, the height of adjustment cushion block, blank assembly exceeds vice jaw upper surface 1/4 part high (D), rotates and tightens the two jaw clamping blank assemblies that screw rod makes vice;
I, take off finishing cutter, heavy-duty cutter is contained on knife rest, adjusts 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;
J, startup 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 k, 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.
CN201510222942.9A 2015-05-05 2015-05-05 Machining method of H-shaped thin-wall parts Pending CN104841989A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108941709A (en) * 2018-08-13 2018-12-07 徐州重型机械有限公司 A kind of anti-milling method of cutter for numerically-controlled machine tool
CN108941710A (en) * 2018-08-13 2018-12-07 徐州重型机械有限公司 A kind of anti-milling method
CN109434168A (en) * 2018-11-23 2019-03-08 山西航天清华装备有限责任公司 A kind of processing method of weak rigid I-shaped component
CN111001861A (en) * 2019-12-18 2020-04-14 西安航天动力机械有限公司 Numerical control machining method for cavity in large aluminum alloy skirt body

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85202659U (en) * 1985-06-26 1986-08-13 姜士俊 Locating and grinding device for coping clamping chuck jaw
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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
CN102179708A (en) * 2011-03-09 2011-09-14 浙江大学宁波理工学院 Multipoint profiling rigid clamp and method for processing thin-wall workpiece by using same
CN102615520A (en) * 2012-03-30 2012-08-01 浙江大学宁波理工学院 Composite material thin-walled piece clamp and method for processing composite material by using clamp
CN103567781A (en) * 2013-10-11 2014-02-12 中航飞机股份有限公司西安飞机分公司 Numerical control machining clamping method of long and thin sectional material part
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85202659U (en) * 1985-06-26 1986-08-13 姜士俊 Locating and grinding device for coping clamping chuck jaw
JP2007296596A (en) * 2006-04-28 2007-11-15 Toyota Motor Corp Cutting work device and cutting work method
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
CN102179708A (en) * 2011-03-09 2011-09-14 浙江大学宁波理工学院 Multipoint profiling rigid clamp and method for processing thin-wall workpiece by using same
CN102615520A (en) * 2012-03-30 2012-08-01 浙江大学宁波理工学院 Composite material thin-walled piece clamp and method for processing composite material by using clamp
CN103567781A (en) * 2013-10-11 2014-02-12 中航飞机股份有限公司西安飞机分公司 Numerical control machining clamping method of long and thin sectional material part
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108941709A (en) * 2018-08-13 2018-12-07 徐州重型机械有限公司 A kind of anti-milling method of cutter for numerically-controlled machine tool
CN108941710A (en) * 2018-08-13 2018-12-07 徐州重型机械有限公司 A kind of anti-milling method
CN109434168A (en) * 2018-11-23 2019-03-08 山西航天清华装备有限责任公司 A kind of processing method of weak rigid I-shaped component
CN109434168B (en) * 2018-11-23 2020-08-11 山西航天清华装备有限责任公司 Processing method of weak-rigidity I-shaped component
CN111001861A (en) * 2019-12-18 2020-04-14 西安航天动力机械有限公司 Numerical control machining method for cavity in large aluminum alloy skirt body
CN111001861B (en) * 2019-12-18 2020-09-22 西安航天动力机械有限公司 Numerical control machining method for cavity in large aluminum alloy skirt body

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Application publication date: 20150819