CN219819305U

CN219819305U - Grinding machine grinding wheel and electromagnetic chuck linkage device

Info

Publication number: CN219819305U
Application number: CN202320354482.5U
Authority: CN
Inventors: 黄如文; 方金顺; 张玉巍; 邓国成
Original assignee: Longyan Longxiang Machinery Equipment Manufacturing Co ltd
Current assignee: Longyan Longxiang Machinery Equipment Manufacturing Co ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-10-13
Anticipated expiration: 2033-03-01

Abstract

The utility model discloses a grinding wheel and electromagnetic chuck linkage device of a grinding machine, which structurally comprises a machine body, an electromagnet, a grinding wheel motor, an assembly box, an upright post and a grinding wheel, wherein the electromagnet is arranged on the machine body, the assembly box and the upright post are used for moving and assembling the grinding wheel motor and the grinding wheel, and the grinding wheel motor is connected with the electromagnet in a ferroelectric way.

Description

Grinding machine grinding wheel and electromagnetic chuck linkage device

Technical Field

The utility model belongs to the field of grinding machine devices, and particularly relates to a linkage device of a grinding wheel of a grinding machine and an electromagnetic chuck.

Background

Grinding machines are machine tools for grinding the surface of a workpiece by utilizing grinding tools, most grinding machines use grinding wheels rotating at high speed for grinding, along with the increase of the number of high-precision and high-hardness mechanical parts, the development of precision casting and precision forging processes and the continuous improvement and increase of the performance, variety and yield of the grinding machines, although the variety is increased, in order to stabilize the workpiece during grinding, the grinding machines are often equipped with electromagnet suction plates for firmly sucking the workpiece due to friction movement and the like, and the technology is improved along with the rapid development of science and technology, but in the prior art, the electromagnet of the grinding machines is easy to cause no magnetic force or magnetic force reduction due to circuit faults or resistance rise after long-term use, so that the danger of throwing out the workpiece during processing is easily caused, and in the prior art, the electromagnet suction plates can start the whole electromagnet during working, cause a lot of idle work during small workpiece processing, waste energy and simultaneously reduce the service life of equipment.

Disclosure of Invention

First, the technical problem to be solved

In order to overcome the defects of the prior art, a linkage device of a grinding wheel and an electromagnetic chuck of a grinding machine is provided, so that the problems that in the prior art, after the electromagnet of the grinding machine is used for a long time, no magnetic force or magnetic force is reduced due to circuit faults or resistance rise easily, and therefore dangers such as workpiece throwing during processing are easily caused are solved;

secondly, when solving prior art and using, the electro-magnet suction plate is at the during operation, no matter the size of work piece, all can start whole electro-magnet, when small work piece processing, can cause a lot of idle work, the circumstances of extravagant energy reduces the life of equipment simultaneously.

(II) technical scheme

The utility model is realized by the following technical scheme: the utility model provides a grinding wheel and electromagnetic chuck linkage device of a grinding machine, which structurally comprises a machine body, an electromagnet, a grinding wheel motor, an assembly box, an upright post and a grinding wheel, wherein the electromagnet is arranged on the machine body;

the electromagnet comprises a motor linkage mechanism, an electricity connection box, a base, a frame plate, a coil groove, a coil, a partition plate, a magnetic isolation sheet and an iron core, wherein the partition plate, the magnetic isolation sheet and the iron core are mutually extruded into a top plate at intervals side by side;

the motor linkage mechanism comprises a first compression spring, a through hole, an attracting ball, a pull rope, a protective tube, a first electric connection plate, a first electric connection groove, an electric connection plate, an electric connection ring, a second electric connection plate and a cover plate, wherein the cover plate is locked and connected to the bottom of the base, the first electric connection groove is arranged in the base and is communicated with the cover plate, the side edge of the top end of the electric connection plate is fixedly connected with the electric connection ring, the first electric connection plate and the second electric connection plate are arranged in the base, the first electric connection plate and the second electric connection plate are respectively communicated with the left side and the right side of the top end of the first electric connection groove, the electric connection ring is used for communicating the first electric connection plate and the second electric connection plate when the electric connection plate is lifted, the protective tube is fixedly connected with the bottom end of the partition plate, the through hole penetrates through the magnetic separation plate, the partition plate, the protective tube and the middle part of the top end of the first electric connection groove, one end of the pull rope is fixedly connected with the middle part of the top end of the electric connection plate, the other end of the pull rope is fixedly connected with the attracting ball, the attracting ball is fixedly connected with the first compression spring, the first compression spring penetrates through the first compression spring and penetrates through the through hole to the second electric connection plate, and is connected with the first electric connection box.

Further, the electromagnet is provided with coils with the same number of iron cores and a motor linkage mechanism.

Further, the attraction ball is made of iron, cobalt and nickel, the pull rope is made of a material which can not be attracted magnetically or is attracted magnetically low, and the electrified connecting plate is made of an insulating material.

Further, connect the electric box and include live wire fishplate bar, contact rod, insulated plate, circular telegram roof assembly plate, butt joint, screw rod, box body, zero line fishplate bar, live wire fishplate bar, zero line fishplate bar all run through locate in the box body, in the box body and with box body threaded connection is located to screw rod one end, adjacent box body end and butt joint fixed connection of screw rod, the butt joint is located circular telegram roof assembly plate, butt joint head end and circular telegram roof fixed connection are kept away from to circular telegram roof assembly plate, circular telegram roof is kept away from circular telegram roof assembly plate end and insulated plate fixed connection, the live wire fishplate bar is formed by connecting more than 2 pinion, the insulated plate is kept away from circular telegram roof end and is located the pinion department that the live wire fishplate bar meets, the insulated plate bar is used for lowering the pinion of insulated live wire, the adjacent circular telegram roof fixed connection of circular telegram roof and live wire fishplate bar, the zero line fishplate bar is used for connecting all grinding wheel motors, coil and power, circular telegram and coil's live wire are connected, one of electromagnet motor end motor linkage first motor and electric motor and adjacent electric motor and the same electric motor linkage, the same electric motor and the same electric motor are connected with the circular telegram roof, the other electric motor linkage is connected with the circular telegram both ends, and the electric motor linkage is connected respectively.

Further, the butt joint is a cylinder with a convex cross section.

Further, the bottom end of the isolation plate is an inclined plane gradually decreasing towards the middle, the small plates of the fire wire connecting plate are connected to form an inclined plane attached to the bottom end of the isolation plate, and the isolation plate is made of an insulating material with certain hardness.

Further, be equipped with in the box body with coil equal quantity's contact rod, insulating board, circular telegram roof assembly plate, butt joint, screw rod, the live wire fishplate bar is connected with all contact rods electricity, the contact rod corresponds the assembly in insulating board and keeps away from live wire fishplate bar and the emery wheel motor is connected the side.

(III) beneficial effects

One of the above technical solutions has the following advantages or beneficial effects:

1) When the grinder is used, the electromagnet of the grinder is easy to cause no magnetic force or magnetic force to be reduced because of circuit faults or resistance rising after being used for a long time, so that dangerous conditions such as workpiece throwing and the like are easily caused during processing, the electromagnet and the grinding wheel motor are linked through the motor linkage mechanism, the grinding wheel motor can be started after a certain magnetic force is required to attract the attraction ball to drive the electrified connecting plate to be connected with the electric connecting plate, the attraction ball can be reset by spring jacking when the magnetic force of the electromagnet is reduced to a certain value, the electrified connecting plate is separated from the electric connecting plate, the grinding wheel motor is automatically powered off, the grinding wheel motor is prevented from working when the magnetic force of the electromagnet of the grinder is insufficient, and the danger such as workpiece throwing and the like is prevented.

2) When the electromagnet suction plate is used in the prior art, the whole electromagnet can be started in working regardless of the size of a workpiece, a lot of idle work can be caused when the workpiece is small in machining, energy is wasted, the service life of equipment is reduced, the special junction box is arranged, coils of the electromagnet are connected in series into a power supply circuit through an electrified top plate, the equipment can control the use quantity of the electromagnetic coils by controlling contact or separation of the electrified top plate and a grounding rod of a live wire connecting plate, meanwhile, the live wire connecting plate is in a form of combining small plates, each small plate is provided with an isolation plate and the grounding rod of the live wire circuit is changed after the isolation, so that the equipment can not influence linkage of an equipment grinding wheel and the electromagnet when partial electromagnets are selectively started, the idle work is reduced, the energy is saved, and the component loss is reduced.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a grinding wheel and electromagnetic chuck linkage of a grinding machine according to the present utility model;

FIG. 2 is a schematic cross-sectional view of an electromagnet of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a front view of the power receiving box of the present utility model;

FIG. 5 is a schematic cross-sectional view of a side view of the assembly of the energizing top plate of the power-on box of the present utility model;

in the figure: the machine comprises a machine body-1, an electromagnet-2, a grinding wheel motor-3, an assembly box-4, a stand column-5, a grinding wheel-6, a motor linkage mechanism-a, a power receiving box-b, a base-c, a frame plate-d, a coil groove-e, a coil-f, a partition plate-g, a magnetism isolating sheet-h, an iron core-i, a first compression spring-a 1, a through hole-a 2, a suction ball-a 3, a pull rope-a 4, a protection tube-a 5, a first power receiving plate-a 6, a first power receiving groove-a 7, a power receiving plate-a 8, a power receiving ring-a 9, a second power receiving plate-a 10, a cover plate-a 11, a power receiving plate-b 1, a power receiving rod-b 2, an isolating plate-b 3, a power receiving top plate-b 4, a power receiving top plate-b 5, a butt joint-b 6, a screw rod-b 7, a box body-b 8 and a zero line assembly plate-b 9.

Detailed Description

The present utility model will be described in further detail with reference to examples, but embodiments of the present utility model are not limited thereto.

The utility model provides a linkage device of a grinding wheel of a grinding machine and an electromagnetic chuck, which comprises: the structure of the grinding wheel machine comprises a machine body 1, an electromagnet 2, a grinding wheel motor 3, an assembly box 4, a stand column 5 and a grinding wheel 6, wherein the electromagnet 2 is assembled on the machine body 1, the assembly box 4 and the stand column 5 are used for moving and assembling the grinding wheel motor 3 and the grinding wheel 6, the grinding wheel motor 3 is connected with the grinding wheel 6, and the grinding wheel motor 3 is electrically connected with the electromagnet 2;

the electromagnet 2 comprises a motor linkage mechanism a, an electricity connection box b, a base c, a frame plate d, a coil groove e, a coil f, a partition plate g, a magnetic isolation sheet h and an iron core i, wherein the partition plate g, the magnetic isolation sheet h and the iron core i are mutually extruded into a top plate at intervals side by side, the bottom end of the partition plate g is fixedly connected with the frame plate d, the base c is locked at the bottom end of the frame plate d, the coil groove e is formed between the inside of the frame plate d and the base c and between the partition plate g, the bottom of the iron core i is longer than the partition plate g and the magnetic isolation sheet h, the bottom of the iron core i is arranged in the coil groove e, the coil f is sleeved at the bottom of the iron core i, the motor linkage mechanism a is used for detecting the magnetic force of the iron core i and controlling the on-off of the grinding wheel motor 3, and the electricity connection box b is used for connecting electricity between the motor linkage mechanism a and the grinding wheel motor 3;

the motor linkage mechanism a comprises a first compression spring a1, a through hole a2, an attracting ball a3, a pull rope a4, a protection tube a5, a first electric connection plate a6, a first electric connection groove a7, an electric connection plate a8, an electric connection ring a9, a second electric connection plate a10 and a cover plate a11, wherein the cover plate a11 is locked and connected to the bottom of a base c, the first electric connection groove a7 is arranged in the base c and is communicated with the cover plate a11, the side edge of the top end of the electric connection plate a8 is fixedly connected with the electric connection ring a9, the first electric connection plate a6 and the second electric connection plate a10 are arranged in the base c, the first electric connection plate a6 and the second electric connection plate a10 are respectively communicated with the left side and the right side of the top end of the first electric connection groove a7, the electric connection ring a9 is used for communicating the first electric connection plate a6 and the second electric connection plate a10 when the electric connection plate a8 is lifted, the protection tube a5 is fixedly connected with the bottom end of a partition plate g, the through hole a2 penetrates through h, the first electric connection plate a5, the top end of the first electric connection plate a7 is fixedly connected with the pull rope a3, the other end of the electric connection plate a4 is fixedly connected with the top end of the first electric connection ball a3, the first electric connection plate a6 is connected with the middle part of the electric connection ball a4, and the other end of the electric connection ball a3 is far from the electric connection ball a3, and the electric connection box is fixedly connected with the top end of the first electric connection plate a3, and the electric connection ball a3 is connected with the top end of the electric connection ball a 3.

The electromagnet 2 is provided with coils f and motor linkage mechanisms a, wherein the coils f and the motor linkage mechanisms a are equal in number and are arranged on the iron cores i.

The pull rope a4 is made of a material which can not be magnetically attracted or is magnetically attracted to be low, and the energizing connection plate a8 is made of an insulating material.

The electric box b comprises a fire wire connecting plate b1, a connecting rod b2, an isolation plate b3, an electrified top plate b4, an electrified top plate assembly plate b5, an opposite joint b6, a screw rod b7, a box body b8 and a zero line connecting plate b9, wherein the fire wire connecting plate b1 and the zero line connecting plate b9 are all penetrated in the box body b8, one end of the screw rod b7 is arranged in the box body b8 and is in threaded connection with the box body b8, the screw rod b7 is adjacent to the box body b8 end and fixedly connected with the opposite joint b6, the opposite joint b6 is arranged in the electrified top plate assembly plate b5, the opposite joint b6 is in clearance fit with the electrified top plate assembly plate b5, the electrified top plate b5 is far away from the end of the opposite joint b6 and is fixedly connected with the electrified top plate b4, the end of the electrified top plate assembly plate b5 is fixedly connected with the electrified top plate b3, the fire wire connecting plate b1 is formed by more than 2 small plates, the end of the live wire connecting plate b3 is far away from the electric motor small plate b1, the electric motor small plate b3 is positioned on the electric motor small plate b1, the electric motor b3 is adjacent to the electric motor small plate b3 is in the electric motor small plate b1, the electric wire connecting mechanism is in the electric connection with the electric abrasive wheel b2, the electric abrasive wheel is in the linkage with the electric connection with the two end of the electric plate b2 a2, and the electric abrasive wheel is in the electric connection with the electric abrasive wheel b2 a2, and the electric connection with the electric abrasive wheel b is in the electric connection with the end is in the electric connection with the electric abrasive wheel b 2.

The butt joint b6 is a cylinder with a convex cross section, and the butt joint b6 is a cylinder with a convex cross section.

The bottom end of the isolation plate b3 is an inclined surface gradually decreasing towards the middle, the small plates of the fire wire connecting plate b1 are connected to form an inclined surface attached to the bottom end of the isolation plate b3, and the isolation plate b3 is made of an insulating material with certain hardness.

The box body b8 is internally provided with a plurality of electric connection rods b2, isolation plates b3, an electrified top plate b4, an electrified top plate assembly plate b5, a butt joint b6 and a screw rod b7 which are equal to the coil f, the live wire connection plate b1 is electrically connected with all the electric connection rods b2, and the electric connection rods b2 are correspondingly assembled on the connection sides, far away from the live wire connection plate b1 and the grinding wheel motor 3, of the isolation plates b 3.

Embodiments are described below: when the grinding wheel polishing processing is carried out, a workpiece is placed at the top end of a top plate formed by mutually and parallelly extruding a spacing plate g, a magnetism isolating sheet h and an iron core i at intervals, then a power supply of a coil f is connected, so that the iron core i magnetizes the workpiece, at the moment, the iron core i can also attract an attracting ball a3 to push a first compression spring a1 to be attached to the workpiece, so that the attracting ball a3 drives an electrifying plate a8 to ascend through a pull rope a4, an electrifying ring a9 of the electrifying plate a8 can be connected with a first electric connecting plate a6 and a second electric connecting plate a10, at the moment, the first electric connecting plate a6 and the second electric connecting plate a10 form a passage, so that a grinding wheel motor 3 connected with the first electric connecting plate a6 and the second electric connecting plate a10 can be electrified, and when the magnetic force of the iron core i is reduced or no magnetic force is caused by line faults or resistance rising, the first compression spring a1 can push the attracting ball a3 to be far away from the iron core i, the power-on connection plate a8 can descend due to the self weight and the jacking of the pull rope a4 by the attraction ball a3, the power-on connection plate a8 is separated from the first power-on connection plate a6 and the second power-on connection plate a10, so that the grinding wheel motor 3 connected with the first power-on connection plate a6 and the second power-on connection plate a10 in series can be immediately powered off, the grinding wheel motor 3 can not work when the magnetic force of the electromagnet 2 is insufficient, the danger that workpieces are unstably attracted and thrown out due to insufficient magnetic force can be prevented, when the electromagnet is used, the workpiece can be placed on the table of the electromagnet 2 at the side where the end part of the first power-on connection plate a6 is electrically connected with the live wire of the grinding wheel motor 3 when the workpiece is not required to be small and the whole electromagnet 2 is not required to be attracted, then a screw b7 of the electromagnet 2 can be rotationally required to be used according to the attraction requirement, the screw b7 drives the power-on top plate b4 to descend through the power-on top plate assembly plate b5, when the power-on top plate b4 descends, the small plate b1 at the corresponding position can be isolated by the isolating plate b3, the grinding wheel motor 3 connected to the two ends of the first live wire connecting plate b1 is disconnected from the power supply, at this time, the power supplied by the power supply is conducted from the disconnected power receiving rod b2 to the lowered power receiving top plate b4 and the power receiving top plate b4 is electrified, the coil f connected to the power receiving top plate b4 and the second power receiving plate a10 are electrified, at this time, only the activated coil f generates magnetic force to the assembled iron core i, and at this time, the live wire line of the grinding wheel motor 3 becomes: the grinding wheel motor 3-end part first electricity connection plate a 6-electricity connection plate a 8-second electricity connection plate a 10-electricity connection top plate b 4-electricity connection rod b 2-fire wire connection plate b1, even if the grinding wheel motor 3 enters a linkage mode of the grinding wheel motor 3 and the electromagnet 2 of the equipment, the fire wire line of the grinding wheel motor 3 becomes as the subsequent screw rod b7 is rotated in sequence: the grinding wheel motor 3-end first electric connection plate a 6-electrifying connection plate a 8-second electric connection plate a 10-first electric connection plate a 6-second electric connection plate a 8-second electric connection plate a 10-first electric connection plate a6. of 3 rd electric motor linkage mechanism a of the 2 nd electric motor linkage mechanism a of the first electric connection plate a 6-2-second electric connection plate a 10-of the 2 nd electric motor linkage mechanism a, at the same time, the grinding wheel motor 3 becomes the condition of being connected with a plurality of groups of first electric connection plate a 6-electrifying connection plate a 8-second electric connection plate a10 in series to the electrifying top plate b 4-electrifying connection plate b 2-electrifying connection plate b1, so that the equipment can control the using quantity of the coil f by controlling the contact or separation of the electrifying top plate b4 and the electrifying connection plate b2 of the electrifying connection plate b1 through a screw b7, and the equipment can also not influence the grinding wheel motor 3 and the electromagnet 2 of the equipment when a part of the electromagnet 2 is selected to be started, so that the idle work is reduced, the energy is saved, and the component loss is reduced.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

The control mode of the utility model is controlled by manually starting and closing the switch, the wiring diagram of the power element and the supply of the power supply are common knowledge in the field, and the utility model is mainly used for protecting the mechanical device, so the utility model does not explain the control mode and the wiring arrangement in detail.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a grinding machine emery wheel and electromagnetic chuck aggregate unit, its structure includes lathe bed (1), electro-magnet (2), emery wheel motor (3), assembly case (4), stand (5), emery wheel (6), be equipped with electro-magnet (2) on lathe bed (1), assembly case (4), stand (5) are used for the removal assembly of emery wheel motor (3) and emery wheel (6), emery wheel motor (3) are connected with electro-magnet (2) electricity;

the method is characterized in that: the electromagnet (2) comprises a motor linkage mechanism (a), a power receiving box (b), a base (c), a frame plate (d), a coil groove (e), a coil (f), a partition plate (g), a magnetic isolation sheet (h) and an iron core (i), wherein the partition plate (g), the magnetic isolation sheet (h) and the iron core (i) are mutually extruded into a top plate at intervals side by side, the frame plate (d) is fixedly connected to the bottom end of the partition plate (g), the base (c) is locked at the bottom end of the frame plate (d), a coil groove (e) is formed between the inside of the frame plate (d) and the base (c) and the partition plate (g), the bottom of the iron core (i) is longer than the partition plate (g) and the magnetic isolation sheet (h), the bottom of the iron core (i) is arranged in the coil groove (e), the coil (f) is sleeved at the bottom of the iron core (i), the motor linkage mechanism (a) is used for detecting the magnetic force of the iron core (i) and controlling the power on-off of the grinding wheel motor (3), and the power receiving box (b) is used for connecting the power between the motor mechanism (a) and the grinding wheel (3);

the motor linkage mechanism (a) comprises a first compression spring (a 1), a through hole (a 2), an attracting ball (a 3), a pull rope (a 4), a protective tube (a 5), a first electric connection plate (a 6), a first electric connection groove (a 7), an electric connection plate (a 8), an electric connection ring (a 9), a second electric connection plate (a 10) and a cover plate (a 11), wherein the cover plate (a 11) is locked and connected to the bottom of a base (c), the first electric connection groove (a 7) is arranged in the base (c) and communicated with the cover plate (a 11), the side edge of the top end of the electric connection plate (a 8) is fixedly connected with an electric connection ring (a 9), the first electric connection plate (a 6), the second electric connection plate (a 10) are arranged in the base (c), the first electric connection plate (a 6) and the second electric connection plate (a 10) are respectively communicated with the left side and right side of the top end of the first electric connection groove (a 7), the electric connection ring (a 9) is used for being communicated with the first electric connection plate (a 8) when the electric connection plate (a 6), the top end of the second electric connection plate (a 5) is lifted, the top end of the pull rope (a 5) is fixedly connected with the top end of the protective tube (a 5), the top end of the magnetic sheet (a) is fixedly connected with the top end of the base (a 5), the pull rope (a 4) is fixedly connected with an attracting ball (a 3), a first compression spring (a 1) is fixedly connected to the attracting ball (a 3), the first compression spring (a 1) penetrates through a through hole (a 2) to be connected with the side edge of the iron core (i), and the second power connection plate (a 10) is electrically connected with the power connection box (b).

2. The grinding wheel and electromagnetic chuck linkage of a grinding machine according to claim 1, wherein: the electromagnet (2) is provided with coils (f) with the same number of iron cores (i) and a motor linkage mechanism (a).

3. The grinding wheel and electromagnetic chuck linkage of a grinding machine according to claim 1, wherein: the attraction ball (a 3) is made of iron, cobalt and nickel, the pull rope (a 4) is made of a material which can not be attracted magnetically or is attracted magnetically low, and the electrified connecting plate (a 8) is made of an insulating material.

4. The grinding wheel and electromagnetic chuck linkage of a grinding machine according to claim 1, wherein: the electric connection box (b) comprises a live wire connecting plate (b 1), a connecting rod (b 2), an isolation plate (b 3), an electric connection top plate (b 4), an electric connection top plate assembly plate (b 5), an opposite joint (b 6), a screw rod (b 7), a box body (b 8) and a zero line connecting plate (b 9), wherein the live wire connecting plate (b 1) and the zero line connecting plate (b 9) are all penetrated in the box body (b 8), one end of the screw rod (b 7) is arranged in the box body (b 8) and is in threaded connection with the box body (b 8), the screw rod (b 7) is adjacent to the box body (b 8) end and is fixedly connected with the opposite joint (b 6), the opposite joint (b 6) is arranged in the electric connection top plate assembly plate (b 5), the electric connection top plate assembly plate (b 5) is far away from the opposite joint (b 6) end and is fixedly connected with the electric connection top plate (b 4), the electric connection top plate assembly plate (b 4) is far from the electric connection top plate assembly plate (b 5) end and the electric connection top plate (b 3) is far from the electric connection top plate assembly plate (b 3), the live wire assembly plate (b 1) is far from the electric connection top plate (b 1) is arranged on the small electric connection top plate (b 1) and is formed by the small electric connection top plate (b 1), the utility model discloses a grinding wheel motor, including electric pole (b 2), live wire fishplate bar (b 1), electric roof (b 4) are connected to live wire fishplate bar (b 1), zero line fishplate bar (b 9) are used for connecting all grinding wheel motor (3), coil (f) and the zero line of power, electric roof (b 4) are connected with the live wire of coil (f), first electric board (a 6) of one of them tip motor link gear (a) of electro-magnet (2) is connected with grinding wheel motor (3) live wire electricity, the first electric board (a 6) of the other adjacent non-same motor link gear (a) of electro-magnet (2) is connected with second electric board (a 10) electricity, second electric board (a 10) is connected with electric roof (b 4) electricity, live wire fishplate bar (b 1) both ends are connected with grinding wheel motor (3) and power electricity respectively.

5. The grinding wheel and electromagnetic chuck linkage of a grinding machine according to claim 4, wherein: the butt joint (b 6) is a cylinder with a convex cross section.

6. The grinding wheel and electromagnetic chuck linkage of a grinding machine according to claim 4, wherein: the bottom end of the isolation plate (b 3) is an inclined surface gradually decreasing towards the middle, the small plates of the fire wire connecting plate (b 1) are connected to form an inclined surface attached to the bottom end of the isolation plate (b 3), and the isolation plate (b 3) is made of an insulating material with certain hardness.

7. The grinding wheel and electromagnetic chuck linkage of a grinding machine according to claim 4, wherein: be equipped with in box body (b 8) with coil (f) equal quantity pole (b 2), insulating board (b 3), circular telegram roof (b 4), circular telegram roof assembly plate (b 5), butt joint (b 6), screw rod (b 7), live wire fishplate bar (b 1) are connected with all poles (b 2) electricity, pole (b 2) are correspondingly assembled and are kept away from live wire fishplate bar (b 1) and grinding wheel motor (3) connection side in insulating board (b 3).