CN113787238A - Neodymium iron boron magnetic ring terminal surface curved surface wire-electrode cutting machine tool - Google Patents

Neodymium iron boron magnetic ring terminal surface curved surface wire-electrode cutting machine tool Download PDF

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Publication number
CN113787238A
CN113787238A CN202111180212.9A CN202111180212A CN113787238A CN 113787238 A CN113787238 A CN 113787238A CN 202111180212 A CN202111180212 A CN 202111180212A CN 113787238 A CN113787238 A CN 113787238A
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CN
China
Prior art keywords
lead screw
machine tool
iron boron
neodymium iron
support arm
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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
CN202111180212.9A
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Chinese (zh)
Inventor
何欢
曹杨
酒红芳
孙友谊
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North University of China
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North University of China
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Publication date
Application filed by North University of China filed Critical North University of China
Priority to CN202111180212.9A priority Critical patent/CN113787238A/en
Publication of CN113787238A publication Critical patent/CN113787238A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02Wire-cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H11/00Auxiliary apparatus or details, not otherwise provided for
    • 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
    • B23Q11/00Accessories 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
    • B23Q11/12Arrangements for cooling or lubricating parts of the machine

Abstract

A machine tool for cutting and machining the curved surface of end face of Nd-Fe-B magnetic ring is composed of machine base, control panel, X-axle slide table with screw rod, vertical column with upper and lower supporting arms, screw rod, guide wheels at both ends of upper arm, guide wheel at one end of lower arm, travel switch at one side of screw rod, handwheel at top end of vertical column, screw rod under handwheel, upper and lower supporting arms, upper and lower arm, guide wheel at both ends of upper arm, guide wheel at one end of lower arm, molybdenum wire wound around screw cylinder, X-axle step motor at tail of slide table, fixture base on slide table, polar speed reducer at top end of fixture base, polar step motor at tail of polar speed reducer, the three-jaw chuck is arranged at the head of the polar shaft speed reducer, and the processing requirement of the end surface complex curved surface can be met.

Description

Neodymium iron boron magnetic ring terminal surface curved surface wire-electrode cutting machine tool
Technical Field
The invention belongs to the technical field of powder forming metal processing, and particularly relates to a machine tool for cutting and processing curved surface lines on end faces of neodymium iron boron magnetic rings.
Background
At present, special tools and grinding are mostly adopted for processing the shape of powder forming metal, and multi-line cutting processing, electric spark wire cutting processing and grinding processing of diamond tools are mostly adopted for sintering neodymium iron boron materials with large brittleness. The inner hole, the outer circle and the end face of the sintered neodymium iron boron annular material are mostly processed by grinding. However, the end surface curved surface of the special requirement occasion, such as the end surface spiral curved surface of the neodymium iron boron rotor of the power adjustable direct current motor, can not be processed. The invention aims to solve the processing problem that the special requirement end face of the material needs to be solved urgently.
Disclosure of Invention
The invention provides a neodymium iron boron magnetic ring end surface curved surface linear cutting processing machine tool aiming at the problem that a conventional processing method cannot process a complex end surface, and the machine tool is suitable for processing the complex curved surface of a powder metal circular ring end surface with higher brittleness, and is particularly suitable for precisely processing special requirements of end surface planes, spiral curved surfaces, rectangular surfaces and the like of a large-diameter neodymium iron boron magnetic ring which is prepared by a powder metallurgy technology and has large brittleness and cannot be processed by a traditional mechanical cutting and grinding processing method. By utilizing the wire-electrode cutting technical principle, the vertical feeding shaft and the rotating shaft are matched with each other, and curved surface shapes with different requirements can be cut on the end surface of the circular ring.
The invention adopts the following technical scheme:
a machine tool for processing end surface curved surface linear cutting of neodymium iron boron magnetic ring comprises a machine base, wherein one end of the surface of the machine base is provided with a control panel, the other end of the surface of the machine base is provided with an X-axis screw rod sliding table, an upright post is arranged between the control panel and the X-axis screw rod sliding table, a screw motor is arranged above the control panel, a screw cylinder is arranged above the screw motor, one side of the screw motor is provided with a travel switch, the top end of the upright post is provided with a hand wheel, a screw rod is connected below the hand wheel, the upright post is provided with an upper support arm and a lower support arm, the upper support arm is connected with the screw rod, two ends of the upper support arm are respectively provided with a guide wheel, one end of the lower support arm is provided with a guide wheel, the screw cylinder is wound with molybdenum wires, one end of the molybdenum wires sequentially passes through the two guide wheels of the upper support arm and the guide wheel of the lower support arm from the upper part of the screw cylinder and returns to the lower part of the screw cylinder, the tail part of the X-axis screw rod sliding table is provided with an X-axis screw rod sliding table, the clamp base, the top end of the clamp base is provided with a polar-axis speed reducer, the tail part of the polar shaft speed reducer is connected with a polar shaft stepping motor, and the head part of the polar shaft speed reducer is provided with a three-jaw chuck.
Furthermore, a cooling liquid tank is arranged on the side face of the machine base, and a water pump is arranged at the top end of the cooling liquid tank.
Furthermore, the front ends of the upper support arm and the lower support arm are respectively provided with a downward nozzle and an upward nozzle.
Furthermore, the middle of the three-jaw chuck is provided with an upward nozzle and a downward nozzle which do not rotate along with the three-jaw chuck.
Furthermore, the cooling liquid tank is respectively connected with the four nozzles through water pumps.
Furthermore, one side of the machine base is provided with an openable access door.
Further, the stand is connected with the frame perpendicularly.
Further, the clamp base is vertically connected with the X-axis screw rod sliding table.
Further, the polar axis speed reducer is vertically connected with the clamp base.
The invention has the following beneficial effects:
compared with the existing sintered neodymium iron boron large-diameter magnetic ring with the end face only subjected to plane grinding, the neodymium iron boron magnetic ring end face curved surface linear cutting machining machine tool can meet the machining requirements of end face complex curved surfaces of the materials. And provides a brand-new machine tool structure and an implementation method.
The invention relates to a complex curved surface processing device and a complex curved surface processing technology for the end surface of a powder metal circular ring with high brittleness, which are particularly suitable for the precise processing of the end surface plane, the spiral curved surface, the rectangular surface and the like of a large-diameter neodymium iron boron magnetic ring. By utilizing the wire-electrode cutting technical principle and utilizing the mutual matching of the vertical feeding shaft and the rotating shaft, the curved surface shapes with different requirements are cut on the end surface of the circular ring. The invention provides a brand new method and a brand new process for processing the end face of a powder metal circular ring, and provides equipment with a brand new structure for the field of processing the end face of a large-diameter neodymium iron boron magnetic ring.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
wherein: 1-a machine base; 2-a control panel; 3-a travel switch; 4-a wire moving motor; 5-a silk tube; 6-molybdenum wire; 7-a hand wheel; 8-upright column; 9-a lead screw; 10-upper support arm; 11-a lower support arm; 12-a three-jaw chuck; 13-polar axis reducer; 14-polar axis stepper motor; 15-a clamp base; 16-X axis lead screw sliding table; 17-X axis wire stepper motor; 18-coolant tank; 19-a water pump; 20-nozzle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The invention aims to solve the problem of processing a special complicated end face with special requirements by using the neodymium iron boron magnetic ring end face curved surface wire cutting processing machine tool and provides a brand new structure. In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a neodymium iron boron magnetic ring end surface curved surface linear cutting machining tool which mainly comprises a machine base 1, a control panel 2, a travel switch 3, a wire moving motor 4, a wire cylinder 5, a molybdenum wire 6, a hand wheel 7, an upright post 8, a lead screw 9, an upper supporting arm 10, a lower supporting arm 11, a three-jaw chuck 12, a polar shaft speed reducer 13, a polar shaft stepping motor 14, a clamp base 15, an X-axis lead screw sliding table 16, an X-axis lead screw stepping motor 17, a cooling liquid tank 18, a water pump 19 and a nozzle 20.
The machine base is internally provided with necessary electric control elements and is provided with an openable valve at the side.
An X-axis lead screw sliding table is horizontally arranged above the front part of the machine base, and the tail part of the X-axis lead screw sliding table is connected with an X-axis lead screw stepping motor.
The clamp base is vertically installed above the X-axis screw rod sliding table sliding block, the rotatable polar shaft speed reducer is vertically installed in the center of the upper portion of the clamp base, the tail portion of the polar shaft speed reducer is connected with a polar shaft stepping motor, and the head portion of the polar shaft speed reducer is connected with a three-jaw chuck.
An upright post is vertically arranged above the middle part of the machine seat, and a lower support arm is vertically and fixedly arranged at the lower part of the middle part of the upright post.
The stand of frame middle part top perpendicular installation is hollow structure, and there is the hand wheel of altitude mixture control stand top, and the hand wheel below of altitude mixture control is connected with the lead screw, and the lead screw can drive the upper bracket of installing in stand side and do high sliding adjustment from top to bottom.
A control panel is arranged above the rear part of the machine base, a wire moving motor is arranged on the upper part of the control panel, and a wire barrel is connected above the wire moving motor.
Molybdenum wires special for electrospark wire-electrode cutting are sequentially wound on the wire cylinder, penetrate through the front and the rear guide wheels of the upper supporting arm and the front guide wheel of the lower supporting arm from the upper part of the wire cylinder and return to the lower part of the wire cylinder.
The filament cylinder controls the molybdenum filament to do reciprocating filament movement, and the limit position is controlled by a travel switch.
The front parts of the upper support arm and the lower support arm are respectively provided with a downward cooling nozzle and an upward cooling nozzle, and the three-jaw chuck is internally provided with a downward cooling nozzle and an upward cooling nozzle which do not rotate along with the three-jaw chuck.
The cooling liquid box is an independent water tank structure placed on the side face of the machine tool, a water pump is installed above the cooling liquid box, and circulating cooling liquid is conveyed to the four cooling liquid nozzles by the water pump.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
When the machine tool is used specifically, the specific use steps of the machine tool for linear cutting of the end surface curved surface of the neodymium iron boron magnetic ring are as follows:
firstly, the external control single board computer unit is required to be connected when the linear cutting machine tool for processing the end surface curved surface of the neodymium iron boron magnetic ring is started, and a program is input into the single board computer from a PC. The program consists of an X-axis feed and a rotating axis (polar axis) feed to form a closed curve.
Secondly, taking a processing scheme of a spiral curved surface of an end face of a certain product as an example, the reduction ratio of the polar shaft speed reducer is 10: 1, the circumference of the curved surface is 360 degrees, and the pitch of the spiral curved surface is 30 mm. If the step number of the rotation period of the stepping motor is 500 steps/cycle, the X-axis speed is 1 mm/cycle. Then the step of 500 steps X30 cycles is 15000 steps for the X-axis stepping motor to feed 30 mm. The step motor with a pole shaft feeding 360 ° requires 500 steps × 10 to 5000 steps. Inputting the step number into a single board computer, and executing to obtain the spiral curved surface with the processing pitch of 30 mm.
Thirdly, before the machine tool is processed, the three-jaw chuck is used for clamping a circular workpiece to be processed, and the processing starting zero point is a sparking contact point of the molybdenum wire and the plane of the end face of the circular ring.
Fourthly, if the curved surface to be processed is a centrosymmetric curved surface such as a symmetric rectangular or symmetric sine wave shaped curved surface, the upper support arm can be adjusted to enable the upper end surface and the lower end surface of the circular ring to be contacted with the molybdenum wire so as to improve the processing efficiency. If the non-centrosymmetric curved surface is a spiral curved surface, the upper support arm is adjusted to enable the upper end surface of the circular ring to stride out of the upper support arm, and only the lower end surface of the circular ring is in contact with the molybdenum wire to realize the processing of the non-symmetric curved surface.

Claims (9)

1. The utility model provides a neodymium iron boron magnetism ring terminal surface curved surface wire-electrode cutting machine tool which characterized in that: comprises a machine base (1), one end of the surface of the machine base (1) is provided with a control panel (2), the other end is provided with an X-axis lead screw sliding table (16), an upright post (8) is arranged between the control panel (2) and the X-axis lead screw sliding table (16), a lead screw motor (4) is arranged above the control panel (2), a lead screw cylinder (5) is arranged above the lead screw motor (4), one side of the lead screw motor (4) is provided with a travel switch (3), the top end of the upright post (8) is provided with a hand wheel (7), the lower part of the hand wheel (7) is connected with a lead screw (9), an upper support arm (10) and a lower support arm (11) are arranged on the upright post (8), the upper support arm (10) is connected with the lead screw (9), two ends of the upper support arm (10) are respectively provided with guide wheels, one end of the lower support arm (11) is provided with a guide wheel, a molybdenum wire (6) is wound on the lead screw cylinder (5), one end of the molybdenum wire (6) sequentially penetrates through the guide wheels of the upper support arm (10) and the lower support arm (11) from the upper part of the lead screw cylinder (5), get back to the below of a silk section of thick bamboo (5), the afterbody of X axle lead screw slip table (16) is equipped with X axle silk step motor (17), is equipped with anchor clamps base (15) on X axle lead screw slip table (16), and the top of anchor clamps base (15) is equipped with polar axis speed reducer (13), and the afterbody of polar axis speed reducer (13) is connected with polar axis step motor (14), and the head of polar axis speed reducer (13) is equipped with three-jaw chuck (12).
2. The machine tool for linear cutting and processing of end faces of neodymium iron boron magnetic rings as claimed in claim 1, characterized in that: and a cooling liquid tank (18) is arranged on the side surface of the machine base (1), and a water pump (19) is arranged at the top end of the cooling liquid tank (18).
3. The machine tool for linear cutting and processing of end faces of neodymium iron boron magnetic rings as claimed in claim 2, characterized in that: the front ends of the upper support arm (10) and the lower support arm (11) are respectively provided with a downward nozzle (20) and an upward nozzle (20).
4. The machine tool for linear cutting and processing of end faces of neodymium iron boron magnetic rings as claimed in claim 3, characterized in that: the middle of the three-jaw chuck (12) is provided with an upward nozzle (20) and a downward nozzle which do not rotate along with the three-jaw chuck (12).
5. The machine tool for linear cutting and processing of end faces of neodymium iron boron magnetic rings as claimed in claim 4, characterized in that: the cooling liquid tank (18) is respectively connected with the four nozzles (20) through a water pump (19).
6. The machine tool for linear cutting and processing of end faces of neodymium iron boron magnetic rings as claimed in claim 5, characterized in that: one side of the machine base (1) is provided with an openable access door.
7. The machine tool for linear cutting and processing of end faces of neodymium iron boron magnetic rings as claimed in claim 6, characterized in that: the upright post (8) is vertically connected with the machine base (1).
8. The machine tool of claim 7 for wire-electrode cutting of end faces of neodymium iron boron magnetic rings, characterized in that: the clamp base (15) is vertically connected with the X-axis screw rod sliding table (16).
9. The machine tool of claim 8 for wire-electrode cutting processing of end faces of neodymium iron boron magnetic rings, characterized in that: the polar axis reducer (13) is vertically connected with the clamp base (15).
CN202111180212.9A 2021-10-11 2021-10-11 Neodymium iron boron magnetic ring terminal surface curved surface wire-electrode cutting machine tool Pending CN113787238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111180212.9A CN113787238A (en) 2021-10-11 2021-10-11 Neodymium iron boron magnetic ring terminal surface curved surface wire-electrode cutting machine tool

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Application Number Priority Date Filing Date Title
CN202111180212.9A CN113787238A (en) 2021-10-11 2021-10-11 Neodymium iron boron magnetic ring terminal surface curved surface wire-electrode cutting machine tool

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CN113787238A true CN113787238A (en) 2021-12-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115319202A (en) * 2022-09-14 2022-11-11 安泰爱科科技有限公司 Neodymium iron boron tombarthite permanent magnet does not have boiling material processing with keeping anchor clamps and cutting equipment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202278435U (en) * 2011-10-09 2012-06-20 中船重工中南装备有限责任公司 Rotary clamp for line cutting of end-face cam and cylindrical-face spiral groove
JP5199447B1 (en) * 2011-12-09 2013-05-15 ファナック株式会社 Wire electrical discharge machine with rotating shaft
CN204657678U (en) * 2015-04-30 2015-09-23 慈溪市共力磁业有限公司 A kind of wire cutting mechanism of magnetic Nd-Fe-B ring slicer
CN107052488A (en) * 2017-06-13 2017-08-18 巨轮智能装备股份有限公司 A kind of ring loft cutting off machine and its processing method
CN108380989A (en) * 2018-03-28 2018-08-10 北京汉飞航空科技有限公司 A kind of processing method and equipment of aero-engine blisk
CN207787897U (en) * 2018-01-12 2018-08-31 潍坊九天强磁有限公司 A kind of neodymium-iron-boron ironworking electricity consumption spark line cutting tool
CN208600851U (en) * 2018-06-22 2019-03-15 山东豪迈机械科技股份有限公司 Annular workpieces wire cutting machine tool

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202278435U (en) * 2011-10-09 2012-06-20 中船重工中南装备有限责任公司 Rotary clamp for line cutting of end-face cam and cylindrical-face spiral groove
JP5199447B1 (en) * 2011-12-09 2013-05-15 ファナック株式会社 Wire electrical discharge machine with rotating shaft
CN204657678U (en) * 2015-04-30 2015-09-23 慈溪市共力磁业有限公司 A kind of wire cutting mechanism of magnetic Nd-Fe-B ring slicer
CN107052488A (en) * 2017-06-13 2017-08-18 巨轮智能装备股份有限公司 A kind of ring loft cutting off machine and its processing method
CN207787897U (en) * 2018-01-12 2018-08-31 潍坊九天强磁有限公司 A kind of neodymium-iron-boron ironworking electricity consumption spark line cutting tool
CN108380989A (en) * 2018-03-28 2018-08-10 北京汉飞航空科技有限公司 A kind of processing method and equipment of aero-engine blisk
CN208600851U (en) * 2018-06-22 2019-03-15 山东豪迈机械科技股份有限公司 Annular workpieces wire cutting machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115319202A (en) * 2022-09-14 2022-11-11 安泰爱科科技有限公司 Neodymium iron boron tombarthite permanent magnet does not have boiling material processing with keeping anchor clamps and cutting equipment
CN115319202B (en) * 2022-09-14 2023-12-19 安泰爱科科技有限公司 Neodymium iron boron rare earth permanent magnet does not have material processing of boiling and uses holding fixture and cutting equipment

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Application publication date: 20211214