CN110871282A - Shell type circumferential rotation machining tool and process - Google Patents

Shell type circumferential rotation machining tool and process Download PDF

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Publication number
CN110871282A
CN110871282A CN201911348380.7A CN201911348380A CN110871282A CN 110871282 A CN110871282 A CN 110871282A CN 201911348380 A CN201911348380 A CN 201911348380A CN 110871282 A CN110871282 A CN 110871282A
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CN
China
Prior art keywords
machining
shaft
jaw chuck
processing
processed
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Pending
Application number
CN201911348380.7A
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Chinese (zh)
Inventor
丛培新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUIYANG BOYA MACHINERY MANUFACTURING Co Ltd
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GUIYANG BOYA MACHINERY MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by GUIYANG BOYA MACHINERY MANUFACTURING Co Ltd filed Critical GUIYANG BOYA MACHINERY MANUFACTURING Co Ltd
Priority to CN201911348380.7A priority Critical patent/CN110871282A/en
Publication of CN110871282A publication Critical patent/CN110871282A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/103—Retention by pivotal elements, e.g. catches, pawls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B23/00—Tailstocks; Centres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B23/00—Tailstocks; Centres
    • B23B23/04—Live centres
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
    • B23Q1/76—Steadies; Rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work

Abstract

The invention discloses a shell type circumferential rotation machining tool and a shell type circumferential rotation machining process, wherein the shell type circumferential rotation machining tool comprises a machining center, wherein a fourth shaft three-jaw chuck is arranged on one side of a working platform of the machining center; the other side of the fourth shaft three-jaw chuck is provided with a tail fixing mechanism which is opposite to and coaxial with the fourth shaft three-jaw chuck, and a supporting mechanism is arranged between the fourth shaft three-jaw chuck and the tail fixing mechanism and close to the tail fixing mechanism; a machining tool and a cooling device are arranged above the position between the fourth shaft three-jaw chuck and the supporting mechanism; when the processing tool is used, the processing tool is clamped on a processing center, and radial holes or other special-shaped structures which are distributed in an annular mode on the outer circumference of a part to be processed can be completed at one time. The invention has the advantages of simple structure, low cost, convenient and labor-saving part clamping, good coaxiality and rotation precision of the clamped part, effective improvement of the processing precision of the part, good part processing quality, high processing efficiency, effective saving of time cost and processing cost and good economic benefit.

Description

Shell type circumferential rotation machining tool and process
Technical Field
The invention relates to a circumferential rotation machining tool and process for shells, and belongs to the field of machining equipment.
Background
At present, in a metal processing workshop, the processing of various shell parts, particularly cylindrical shell parts such as shaft coupling shapes, generally needs to process radial holes and other special-shaped structures which are distributed on an outer circle, an inner circle, an end face and an outer circle, and also needs to ensure the coaxiality, the verticality, the planeness, the roughness and other finish processing requirements of the radial holes during processing, and along with the development of economy, the structure of the shell parts is more and more complex, and the processing requirements are higher and higher. The existing processing technology of cylindrical shell parts is generally as follows: the first step finish machining excircle and terminal surface, circle in the second step finish machining, the radial hole class that the annular that the third step used excircle and terminal surface to process on the outer circumference was distributed as the benchmark, in the third step manufacturing procedure, need the outer circumference of clamping part and positioning part terminal surface, the centre gripping location degree of difficulty is big, positioning accuracy is low, the radial hole class machining efficiency who leads to the part is low, can not be fine satisfy the requirement of product mass production, and be difficult to reach the processing requirement, the finished product qualification rate is low, greatly increased manufacturing cost is high, therefore the difficult point of processing of casing class part is the problem that the gold processing workshop is waited for to solve urgently.
Disclosure of Invention
In view of this, the present invention provides a circumferential rotation processing tool and a circumferential rotation processing process for a housing, which can overcome the defects of the prior art.
The purpose of the invention is realized by the following technical scheme:
a shell type circumferential rotation machining tool comprises a machining center, wherein a fourth shaft three-jaw chuck is arranged on one side of a working platform of the machining center; the other side of the fourth shaft three-jaw chuck is provided with a tail fixing mechanism which is opposite to and coaxial with the fourth shaft three-jaw chuck, and a supporting mechanism is arranged between the fourth shaft three-jaw chuck and the tail fixing mechanism and close to the tail fixing mechanism; and a processing tool and a cooling device are arranged above the fourth shaft three-jaw chuck and the supporting mechanism.
The supporting mechanism is a supporting plate convenient to disassemble, an arc-shaped clamping groove is formed in the center of the top of the supporting plate, and the arc-shaped clamping groove and the fourth-shaft three-jaw chuck are coaxially arranged; and the backup pad sets up for multiple specification, the arc draw-in groove of every specification backup pad and the corresponding part excircle diameter of waiting to process looks adaptation.
The mounting rail of the working platform of the machining center is provided with symmetrically arranged fixing seats, the tops of the fixing seats are in threaded connection with compression bolts and pressing plates sleeved on the compression bolts, and the supporting plate is arranged between the two fixing seats and is pressed and fixed through the pressing plates.
The tail fixing mechanism comprises a base fixedly connected with a working platform of the machining center, a sliding table capable of sliding in a three-way mode is arranged on the base, and a movable center which is opposite to and coaxial with the fourth shaft three-jaw chuck is arranged on the sliding table.
A shell type circular rotation machining process comprises the following steps:
the method comprises the following steps of firstly, processing the outer circumference, the end face and the inner hole of a part to be processed according to a conventional process, and ensuring that the coaxiality, the verticality, the planeness and the roughness of the part to be processed meet the processing requirements;
step two, mounting the processing tool on a working platform of a processing center, adjusting the coaxiality of the processing tool, and clamping and fixing the part to be processed;
selecting a machining cutter and a machining cooling mode;
driving a fourth shaft three-jaw chuck to rotate, and roughly machining radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined;
driving a fourth-shaft three-jaw chuck to rotate, and performing semi-finishing on radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined;
and step six, driving the fourth shaft three-jaw chuck to rotate, and performing finish machining on radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined.
The second step comprises the following steps:
2.1, selecting a supporting mechanism matched with the outer circumferential surface of the part to be processed;
2.2, taking the length size of the part to be processed and the central height of the fourth shaft three-jaw chuck as references, installing and fixing the supporting mechanism, and adjusting to enable the fourth shaft three-jaw chuck, the supporting mechanism and the tail fixing mechanism to be coaxial;
2.3, clamping and fixing the outer circumferential surface of one end of the part to be processed by adopting a fourth shaft three-jaw chuck; the other end of the part to be machined is supported by the supporting mechanism, and the end face of the part to be machined is mounted and limited by a movable center of the tail fixing mechanism;
2.4, the center height and the rotation precision of the part to be processed and the processing tool are verified for multiple times, and the coaxiality and the rotation precision of the part to be processed and the processing tool are guaranteed to be within 0.01.
In the third step, a hard alloy cutter is selected for processing;
determining the processing position of an annular radial hole or other special-shaped structures on the outer circumference of the part to be processed by taking the end face of the fourth shaft three-jaw chuck as a reference, and moving a cutter to the position right above the annular radial hole or other special-shaped structures;
meanwhile, compressed air is adopted for cooling in the processing process.
In the fourth step, the cutting speed and the feed amount of the machining tool are set for rough machining;
wherein the cutting speed Vc of the cutter is 220 m/min; the feed fz was 0.4 mm.
In the fifth step, the cutting speed and the feed amount of the machining tool are set for semi-finishing;
wherein the cutting speed Vc of the cutter is 240m/min, and the feed fz is 0.25 mm.
In the sixth step, the cutting speed and the feed amount of the machining tool are set for finish machining;
wherein the cutting speed Vc of the cutter is 300m/min, and the feed fz is 0.1 mm.
Compared with the prior art, the invention discloses a shell type circumferential rotation machining tool and a shell type circumferential rotation machining process, wherein the shell type circumferential rotation machining tool comprises a machining center, and a fourth shaft three-jaw chuck is arranged on one side of a working platform of the machining center; the other side of the fourth shaft three-jaw chuck is provided with a tail fixing mechanism which is opposite to and coaxial with the fourth shaft three-jaw chuck, and a supporting mechanism is arranged between the fourth shaft three-jaw chuck and the tail fixing mechanism and close to the tail fixing mechanism; a machining tool and a cooling device are arranged above the position between the fourth shaft three-jaw chuck and the supporting mechanism; during processing, the outer circumferential surface, the end surface and the inner hole of the part to be processed are processed according to a conventional process, and the coaxiality, the verticality, the planeness and the roughness of the part to be processed are ensured to meet the processing requirements; then clamping the workpiece on a machining center through the machining tool; the annular radial holes or other special-shaped structures on the outer circumference of the part to be processed can be completed at one time. The part is clamped through the combination of the fourth shaft three-jaw chuck, the supporting mechanism and the tail fixing mechanism of the machining center, so that the part is convenient to clamp, the coaxiality and the rotation precision of the part can be guaranteed to be within 0.01, the machining of radial holes or other special-shaped structures which are distributed on the outer circumference of the shell part in an annular mode can be completed better, the machining precision is high, and the production efficiency is high.
The invention has the beneficial effects that:
(1) the invention has the advantages of simple structure, low cost, rapid and convenient part clamping, time and labor saving, flexible adjustment, wide application range and strong practicability.
(2) The fourth shaft three-jaw chuck, the supporting mechanism and the tail fixing mechanism are combined to clamp the part, and the three-jaw chuck and the tail fixing mechanism are fixed at first, so that the coaxiality of the part relative to the axis of the fourth shaft three-jaw chuck can be guaranteed to be within 0.01; and the floating support of the parts is carried out through the support mechanism, so that the floating error of the parts is effectively reduced, the rotation precision of the parts is guaranteed to be within 0.01, the machining precision of the parts is effectively improved, and the machining quality of the parts is good.
(3) The invention can realize the one-time processing of the radial holes distributed annularly on the outer circumference of the shell parts or other special-shaped structures, has high processing efficiency, can effectively save time cost and processing cost, and has good economic benefit.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic front structural view of the present invention.
Fig. 2 is a schematic perspective view of fig. 1.
Fig. 3 is a schematic perspective view of the supporting mechanism.
Fig. 4 is a schematic perspective view of the tail fixing mechanism.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.
As shown in figures 1-4 of the drawings,
the invention discloses a shell type circumferential rotation machining tool which comprises a machining center, wherein a fourth shaft three-jaw chuck 1 is arranged on one side of a working platform of the machining center; the other side is provided with a tail fixing mechanism 2 which is opposite to and coaxial with the fourth shaft three-jaw chuck 1, and a supporting mechanism 3 is arranged between the fourth shaft three-jaw chuck 1 and the tail fixing mechanism 2 and close to the tail fixing mechanism 2; a machining tool 4 and a cooling device 5 are arranged above the position between the fourth shaft three-jaw chuck 1 and the supporting mechanism 3; the fourth shaft three-jaw chuck 1 is used for clamping and fixing one end of a part to be machined; the tail fixing mechanism 2 is used for fixing the other end of the part to be machined, and the floating error of the part to be machined is reduced through the supporting force of the supporting mechanism 3, so that the purpose of machining special-shaped machining such as hole systems, groove systems and the like on the circumference of the part to be machined is achieved.
The supporting mechanism 3 is a supporting plate 301 convenient to detach, an arc-shaped clamping groove 302 is formed in the center of the top of the supporting plate 301, and the arc-shaped clamping groove 302 and the fourth-shaft three-jaw chuck 1 are coaxially arranged. And the supporting plate 301 is set in various specifications, and the arc-shaped clamping groove of the supporting plate in each specification is matched with the diameter of the excircle of the corresponding part to be processed.
Referring to fig. 3, the mounting rails of the working platform of the machining center are provided with symmetrically arranged fixing seats 6, the tops of the fixing seats 6 are in threaded connection with compression bolts 7 and pressing plates 8 sleeved on the compression bolts 7, and the supporting plate 301 is arranged between the two fixing seats 6 and is pressed and fixed by the pressing plates 8. The fixing seat 6 can be adjusted and installed along the installation track of the working platform, and then the installation position of the supporting plate 301 is adjusted, so that the fixing seat is suitable for processing parts with different specifications and sizes.
The pressing plate 8 is an L-shaped plate, a waist circular hole 801 is formed in the long edge of the L-shaped plate, and the compression bolt 7 penetrates through the waist circular hole 801 to enable the L-shaped plate to be fixedly connected to the fixing seat 6; the short edges of the L-shaped plates are provided with edge pressing 802, the edge pressing 802 abuts against the upper surface of the supporting plate 301, the supporting plate 301 can be limited in the vertical direction through pressing of the pressing bolts 7, and the short edges of the L-shaped plates abut against the two side surfaces of the supporting plate 301, so that longitudinal limiting of the supporting plate 301 can be realized; and the lateral direction of the support plate 301 does not need to be strictly limited.
The tail fixing mechanism 2 comprises a base 201 fixedly connected with a working platform of the machining center, a sliding table 202 capable of achieving three-way sliding is arranged on the base 201, and a movable center 203 which is opposite to and coaxial with the fourth shaft three-jaw chuck 1 is arranged on the sliding table 202.
Referring to fig. 4, a transverse slide rail is arranged on the upper surface of the base 201, the sliding table 202 is mounted on the transverse slide rail and can slide transversely, a limiting seat 9 and a limiting plate 11 fixedly connected to the limiting seat 10 through a screw are arranged on the front side and the rear side of the sliding table 202, a limiting groove 204 matched with the sliding table 202 is arranged on the front side and the rear side of the sliding table 202, and the limiting plate 8 is clamped in the limiting groove 204 and can realize transverse adjustment and limiting of the sliding table 202; the inner bottom of the sliding table is provided with a longitudinal sliding rail and a longitudinal sliding seat 205 connected with the longitudinal sliding rail, and a screw rod mechanism 206 which can slide longitudinally is used at the center of the longitudinal sliding seat 205; the longitudinal sliding base 205 is provided with a lifting mechanism 207, the lifting mechanism 207 is a jack mechanism, the top of the jack mechanism is provided with a mounting seat 208 for mounting the centre 203, the centre 203 is arranged outside the sliding table 202, the tail end of the centre 203 is fixedly connected to the mounting seat 208, and the centre 203 can move up and down through the lifting mechanism 207. The coaxiality of the center 203 and the fourth shaft three-jaw chuck 1 can be effectively ensured through the three-way sliding adjustment of the sliding table 202.
The shell type circumferential rotation machining process based on the machining tool specifically comprises the following steps:
the method comprises the following steps of firstly, processing the outer circumference, the end face and the inner hole of a part to be processed according to a conventional process, and ensuring that the coaxiality, the verticality, the planeness and the roughness of the part to be processed meet the processing requirements;
step two, mounting the processing tool on a working platform of a processing center, adjusting the coaxiality of the processing tool, and clamping and fixing the part to be processed;
selecting a machining cutter and a machining cooling mode;
driving the fourth shaft three-jaw chuck 1 to rotate, and roughly machining radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined;
fifthly, driving the fourth shaft three-jaw chuck 1 to rotate, and performing semi-finishing on radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined;
and step six, driving the fourth shaft three-jaw chuck 1 to rotate, and performing finish machining on radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined.
In the second step, the outer circumferential surface of the part to be processed is selected to be matched with the supporting mechanism 3;
the length dimension of the part to be processed and the center height of the fourth shaft three-jaw chuck 1 are taken as references, the supporting mechanism 3 is installed and fixed, and the fourth shaft three-jaw chuck 1, the supporting mechanism 3 and the tail fixing mechanism 2 are adjusted to be coaxial;
clamping and fixing the outer circumferential surface of one end of the part to be processed by adopting a fourth shaft three-jaw chuck 1; the other end of the part to be processed is supported by the supporting mechanism 3, and the end face of the part to be processed is mounted and limited by a movable center 203 of the tail fixing mechanism;
the center height and the rotation precision of the part to be processed and the processing tool are verified for multiple times, and the coaxiality and the rotation precision of the part to be processed and the processing tool are guaranteed to be within 0.01.
In the third step, a hard alloy cutter is selected for processing;
determining the processing position of an annular radial hole or other special-shaped structures on the outer circumference of the part to be processed by taking the end surface of the fourth shaft three-jaw chuck 1 as a reference, and moving a cutter to the position right above the annular radial hole or other special-shaped structures;
meanwhile, compressed air is adopted for cooling in the processing process.
Step four, setting the cutting speed and the feeding amount of a machining cutter to perform rough machining;
wherein the cutting speed Vc of the cutter is 220 m/min; the feed fz was 0.4 mm.
Step five, setting the cutting speed and the feed amount of a machining cutter to perform semi-finishing;
wherein the cutting speed Vc of the cutter is 240m/min, and the feed fz is 0.25 mm.
Step six, setting the cutting speed and the feed amount of a machining cutter to perform finish machining;
wherein the cutting speed Vc of the cutter is 300m/min, and the feed fz is 0.1 mm.
By the aid of the processing tool and the processing technology, the shell part can be processed in a hole system, a groove system and other special shapes at one time on the circumference of the shell part, and the shell part processing tool is high in processing precision, good in quality and low in processing cost.

Claims (10)

1. The utility model provides a casing class circumference rotation processing frock, includes machining center, its characterized in that: a fourth shaft three-jaw chuck (1) is arranged on one side of a working platform of the machining center; the other side is provided with a tail fixing mechanism (2) which is opposite to and coaxial with the fourth shaft three-jaw chuck (1), and a supporting mechanism (3) is arranged between the fourth shaft three-jaw chuck (1) and the tail fixing mechanism (2) and close to the tail fixing mechanism (2); and a processing tool (4) and a cooling device (5) are arranged above and between the fourth shaft three-jaw chuck (1) and the supporting mechanism (3).
2. The circumferential rotary processing tool for shells as claimed in claim 1, wherein: the supporting mechanism (3) is a supporting plate (301) convenient to detach, an arc-shaped clamping groove (302) is formed in the center of the top of the supporting plate (301), and the arc-shaped clamping groove (302) and the fourth-shaft three-jaw chuck (1) are coaxially arranged; and the supporting plate (301) is set in various specifications, and the arc-shaped clamping groove of the supporting plate in each specification is matched with the diameter of the excircle of the corresponding part to be processed.
3. The circumferential rotary processing tool for shells as claimed in claim 2, wherein: the machining center is characterized in that symmetrically arranged fixing seats (6) are arranged on a mounting rail of a working platform of the machining center, a pressing bolt (7) and a pressing plate (8) sleeved on the pressing bolt (7) are in threaded connection with the top of each fixing seat (6), and the supporting plate (301) is arranged between the two fixing seats (6) and is pressed and fixed through the pressing plate (8).
4. The circumferential rotary processing tool for shells as claimed in claim 1, wherein: afterbody fixed establishment (2) are equipped with on base (201) and can realize gliding slip table of three-dimensional (202) including base (201) that link firmly at machining center's work platform, be equipped with on slip table (202) with fourth shaft three-jaw chuck (1) is relative and coaxial live center (203).
5. A shell type circular rotation machining process is characterized by comprising the following steps:
the method comprises the following steps of firstly, processing the outer circumference, the end face and the inner hole of a part to be processed according to a conventional process, and ensuring that the coaxiality, the verticality, the planeness and the roughness of the part to be processed meet the processing requirements;
step two, mounting the processing tool on a working platform of a processing center, adjusting the coaxiality of the processing tool, and clamping and fixing the part to be processed;
selecting a machining cutter and a machining cooling mode;
driving the fourth shaft three-jaw chuck (1) to rotate, and roughly machining radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined;
fifthly, driving the fourth shaft three-jaw chuck (1) to rotate, and performing semi-finishing on radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined;
and step six, driving the fourth shaft three-jaw chuck (1) to rotate, and performing finish machining on radial holes or other special-shaped structures which are annularly distributed on the outer circumference of the part to be machined.
6. The shell-like circumferential rotation machining process according to claim 5, wherein the second step includes the following steps:
2.1, selecting a supporting mechanism matched with the outer circumferential surface of the part to be processed;
2.2, taking the length size of the part to be processed and the central height of the fourth shaft three-jaw chuck as references, installing and fixing the supporting mechanism, and adjusting to enable the fourth shaft three-jaw chuck, the supporting mechanism and the tail fixing mechanism to be coaxial;
2.3, clamping and fixing the outer circumferential surface of one end of the part to be processed by adopting a fourth shaft three-jaw chuck; the other end of the part to be machined is supported by the supporting mechanism, and the end face of the part to be machined is mounted and limited by a movable center of the tail fixing mechanism;
2.4, the center height and the rotation precision of the part to be processed and the processing tool are verified for multiple times, and the coaxiality and the rotation precision of the part to be processed and the processing tool are guaranteed to be within 0.01.
7. The shell-like circumferential machining process according to claim 5, characterized in that: in the third step, a hard alloy cutter is selected for processing;
determining the processing position of an annular radial hole or other special-shaped structures on the outer circumference of the part to be processed by taking the end face of the fourth shaft three-jaw chuck as a reference, and moving a cutter to the position right above the annular radial hole or other special-shaped structures;
meanwhile, compressed air is adopted for cooling in the processing process.
8. The shell-like circumferential machining process according to claim 5, characterized in that: in the fourth step, the cutting speed and the feeding amount of the machining cutter are set for rough machining;
wherein the cutting speed Vc of the cutter is 220 m/min; the feed fz was 0.4 mm.
9. The shell-like circumferential machining process according to claim 5, characterized in that: in the fifth step, the cutting speed and the feed amount of the machining tool are set for semi-finishing;
wherein the cutting speed Vc of the cutter is 240m/min, and the feed fz is 0.25 mm.
10. The shell-like circumferential machining process according to claim 5, characterized in that: in the sixth step, the cutting speed and the feed amount of the machining tool are set for finish machining;
wherein the cutting speed Vc of the cutter is 300m/min, and the feed fz is 0.1 mm.
CN201911348380.7A 2019-12-24 2019-12-24 Shell type circumferential rotation machining tool and process Pending CN110871282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911348380.7A CN110871282A (en) 2019-12-24 2019-12-24 Shell type circumferential rotation machining tool and process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911348380.7A CN110871282A (en) 2019-12-24 2019-12-24 Shell type circumferential rotation machining tool and process

Publications (1)

Publication Number Publication Date
CN110871282A true CN110871282A (en) 2020-03-10

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CN201911348380.7A Pending CN110871282A (en) 2019-12-24 2019-12-24 Shell type circumferential rotation machining tool and process

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113182545A (en) * 2021-04-26 2021-07-30 上海云明汽车部件有限公司 Vacuum pump shaft manufacturing device and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113182545A (en) * 2021-04-26 2021-07-30 上海云明汽车部件有限公司 Vacuum pump shaft manufacturing device and using method thereof
CN113182545B (en) * 2021-04-26 2022-07-29 上海云明汽车部件有限公司 Vacuum pump shaft manufacturing device and using method thereof

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