KR101210226B1 - Permanent magnet chuck - Google Patents

Abstract

Permanent magnet chuck according to the invention is a lower plate, a front core coupled to the front upper portion of the lower plate, a rear core coupled to the rear upper portion of the lower plate, at a predetermined interval between the front core and the rear core At least one intermediate core coupled to an upper portion of the lower plate, a plurality of permanent magnet members disposed between the front core, the rear core and the intermediate core in a direction perpendicular to the lower plate, the permanent magnet A plurality of magnet receiving cases accommodating a part of the member, at least one magnet rotating member including a shaft for rotating the permanent magnet member accommodated in the magnet receiving case in a direction perpendicular to the lower plate, and by manual rotation Transmitting a rotational force to the magnet pivot member And a force opening and closing pivoting member.

Description

Permanent Magnet Chuck {PERMANENT MAGNET CHUCK}

The present invention relates to a permanent magnet chuck, and more particularly, to a permanent magnet configured to be firmly mounted, fixed or unlocked by placing the magnetic force of the permanent magnet to the seated steel workpiece is applied or released It's about Chuck.

When the power is supplied by using a magnetic coil together with a conventional vacuum chuck and an electrostatic chuck, the magnetic force is provided, and the steel work is firmly seated and fixed on the work plate, and when the work is completed, the power supply is stopped to stop the magnetic force. Electromagnet chucks have been widely used to loosen steel workpieces by allowing them to be lost so that they can be freely moved or taken out.

However, these electromagnet chucks have a lot of power consumption problems because they must continuously supply power to the magnetic coil in order to fix the steel workpiece. In addition, when power supply to the magnetic coil is interrupted due to sudden power outage during drilling or milling, there is a problem in that the steel workpiece is released to cause a safety accident.

In order to solve the problems of the electromagnet chuck has been developed a chuck using a permanent magnet described in Patent Documents 1 and 2 described later. Unlike electromagnet chucks, the chuck using permanent magnets disclosed in Patent Literatures 1 and 2 generates magnetic force continuously using a permanent magnet without a separate power supply. Can be fixed to the work plate or released.

However, the switchable permanent magnet chuck disclosed in Patent Document 1 should slide the entire movable plate 26 on which the movable permanent magnet 32 is seated in a horizontal direction in order to apply or release magnetic force to the steel workpiece. Therefore, not only is a lot of force and inconvenience in applying and releasing the magnetic force to the steel workpiece, but also an operation mechanism 34 for moving the movable plate 26 includes a bearing 36, an operation side 38, and a circular plate 40. Should be separately configured to be complicated, such as the eccentric hook 42, the configuration of the operation mechanism 34 was not easy to operate easily by a human hand, there was a problem that it is difficult to move the movable plate easily. In addition, since a plurality of circular magnets are arranged in the horizontal direction, it takes up a lot of space and it is difficult to arrange a plurality of magnets for generating a strong adsorptive magnetic force on the constraints in the small space, the attraction force between the adjacent circular magnets having different polarity The nonmagnetic member 16c must be additionally installed between the magnetic pole face portions 16a and 16b of the face plate 16 so that the magnetic force directed to the upper part is not lost. Therefore, the design of the face plate 16 is not easy to change. .

On the other hand, the 'magnetic chuck using a permanent magnet' disclosed in Patent Document 2, unlike the Patent Document 1, the magnetic body 130 is coupled to the magnetic body (132) by using the arm rotating means 140 by a magnetic body ( By changing the position of 132, a method of applying or releasing magnetic force to the steel workpiece placed on the mounting plate 120 is adopted. However, Patent Document 2 discloses a pinion gear part 142a, a rack gear part 142a, a driving slide bar 142, and a guide block 143 for rotation of a magnetic arm provided with a magnetic material for applying or releasing magnetic force to a steel workpiece. Arm and rotation means consisting of a complex configuration, such as a) and the cylinder 145 must be provided separately, and because the cylinder 145 must be driven by pneumatic or hydraulic pressure, a separate power supply means is required, as well as the production cost increases, such The simple arrangement of the magnetic body 132 has a problem in that it does not sufficiently generate the adsorption magnetic force.

KR 1985-0002974 Y1 KR 20-0203324 Y1

Therefore, the problem to be solved by the present invention is to solve the above problems by using a permanent magnet instead of an electromagnet for fixing and fixing the steel work using the adsorptive magnetic force, even with a simple configuration without additional power source supply or equipment It is to provide a permanent magnet chuck that can easily apply or release the suction magnetic force to the seated steel workpiece through the rotation operation of the permanent magnet for easy change of the magnetic direction by hand.

In addition, another problem to be solved by the present invention is to solve the above problems by efficiently placing a large number of permanent magnets without increasing the overall size to easily apply a strong adsorption magnetic force to the required portion according to the size of the steel workpiece To provide a permanent magnet chuck that can be removed or dismantled.

Permanent magnet chuck according to an embodiment of the present invention for solving the above problems is the lower plate, the front core is coupled to the front upper portion of the lower plate, the rear core is coupled to the rear upper portion of the lower plate, the front Disposed in a direction perpendicular to the lower plate between at least one intermediate core, the front core, the rear core and the intermediate core coupled to the upper portion of the lower plate at predetermined intervals between the core and the rear core A plurality of permanent magnet members, a plurality of magnet housing cases accommodating a portion of the permanent magnet members, and a shaft for rotating the permanent magnet members housed in the magnet housing case in a direction perpendicular to the lower plate; One magnet rotating member, and by manual rotation It includes a magnetic force opening and closing rotating member for transmitting a rotational force to the magnet rotating member.

The front core may include a front core bush, and a front core bush accommodating part and a shaft fixing member accommodating part accommodating the front core bush may be formed.

The rear core may include a rear core bush, and a rear core bush accommodation portion may be formed to accommodate the rear core bush.

The intermediate core may have a shaft through hole through which the shaft passes.

The permanent magnet member may include a rotating magnet having a pair having different polarities corresponding to each other and having a different polarity at left and right sides of the rotating magnet. have.

The magnet accommodating case may include a shaft through hole through which the shaft passes, and a magnet accommodating hole accommodating the pair of rotating magnets, respectively, in a central portion thereof.

It may further include a block-type mounting member detachably coupled to the upper portion of the intermediate core.

The magnet pivot member may include a shaft flange provided at one end of the shaft, a spring pin coupled to the inside of the shaft flange, and a coupling portion provided outside the shaft flange and coupled to the magnetic opening and closing pivot member.

And a shaft fixing member accommodating and coupling at least a portion of the shaft flange and accommodating and coupled to the shaft fixing member receiving hole.

A side cover may be coupled to the front core, the rear core and the side of the intermediate core, respectively, and a stopper may be rotatably coupled to the rear core or at least one side of the side cover by rotation in a vertical direction. have.

The apparatus may further include a gap maintaining case coupled to an upper portion between the front core, the rear core, and the intermediate core.

It may further include a support piece coupled to the front core, the rear core and the intermediate core to support the spacing case.

It may further include a residual magnet disposed on one side of the fixed magnet to correct the magnetic strength of the rotating magnet and the fixed magnet.

It may further include a magnetic force blocking member positioned between the adjacent fixed magnets to block magnetic interference between each other.

The apparatus may further include an additional magnetic force blocking member inserted into a predetermined position of at least one of the front core, the rear core and the intermediate core.

The magnetic opening and closing rotation member may include a rotation handle and a hand socket coupled to the rotation handle in a vertical direction and accommodating and coupled to the coupling portion.

As described above, according to the permanent magnet chuck according to the present invention, in using a permanent magnet instead of an electromagnet for fixing and fixing the steel workpiece, the operator can open and close the magnetic opening and closing device even with a simple configuration without supplying additional power source or equipment. There is an advantageous effect that can easily apply or release the adsorption magnetic force to the seated steel workpiece through the rotation operation of the permanent magnet for easily changing the direction of the magnetic force by hand.

In addition, according to the permanent magnet chuck according to the present invention, a plurality of permanent magnets are efficiently arranged in the vertical direction so that the direction of the magnetic force can be changed without increasing the overall size of the permanent magnet chuck effectively to the required portion according to the size of the steel workpiece There is an advantageous effect of easily applying or dismantling the adsorbing magnetic force.

1 is an assembled perspective view of a permanent magnet chuck according to an embodiment of the present invention;
2 is an exploded perspective view of the permanent magnet chuck of FIG. 1, FIG.
3 is a plan view of the permanent magnet chuck of FIG.
4 is an operating perspective view of a permanent magnet chuck according to one embodiment of the present invention for explaining a magnetic off state;
5 is a magnetic force arrangement diagram of a permanent magnet chuck in accordance with one embodiment of the present invention in a magnetic off state;
6 is an operation perspective view of a permanent magnet chuck of a permanent magnet chuck according to an embodiment of the present invention for explaining a magnetic force on state, and
7 is a magnetic force arrangement diagram of a permanent magnet chuck in accordance with one embodiment of the present invention in a magnetic force on state.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms different from each other, and only the present embodiment makes the disclosure of the present invention complete, and has ordinary skill in the art to which the present invention belongs. It is provided to fully inform the scope of the invention, and the invention is defined only by the scope of the claims.

Hereinafter, a permanent magnet chuck according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

First, a permanent magnet chuck according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

1 is an exploded perspective view of a permanent magnet chuck according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the permanent magnet chuck of FIG. 1, and FIG. 3 is a plan view of the permanent magnet chuck of FIG. 1.

As shown in FIGS. 1 to 3, the permanent magnet chuck according to an embodiment of the present invention may include a lower plate 100, a front core 110, a rear core 120, an intermediate core 130, and a seating member 135. ), The magnet accommodating case 140, the permanent magnet member 150, the magnetic force blocking member 155, the magnet rotating member 160, the shaft fixing member 170, the side cover 175, the space keeping case 180, Hook 185, stopper 190 and the magnetic force opening and closing rotating member 195.

The lower plate 100 provides a space in which various permanent magnet chuck components are mounted.

The lower plate 100 is made of a known SS400 base plate 101 having a strength and a known SUS304 material of a non-magnetic material, is coupled to an upper portion of the base plate 101 and is generated in the permanent magnet member 150 to be described later. And an auxiliary plate 102 for preventing the magnetic force applied through each of the cores 110, 120, and 130 from being transferred to the base plate 101.

The front core 110 is made of SS400 material and the front core 110 is a rotating magnet 151 of the permanent magnet member 150 disposed in the vicinity to be described later, when the steel workpiece mounted on the seating member 135 is fixed and fixed. And absorbs the magnetic force of the fixed magnet 152 to transfer the magnetic force to the seating member 135 to increase the adsorption magnetic force, and includes a front core body 111 and a front core bush 119.

The front core body 111 is long in the horizontal direction and has a narrow rectangular parallelepiped shape, and the bolt fastening hole (not shown) having a coupling bolt b coupled to the bolt fastening holes 101a and 102a at the bottom thereof. It is coupled to the front upper portion of the lower plate 100.

The central portion of the front core body 111 is formed with a shaft fixing member receiver 114 having a large diameter to accommodate the plurality of front core bush receiver 112 and the front core bush receiver 112 therein, respectively. Hook hook holes 111a are formed at both ends of the outer side surface, and although not shown in the drawing, a plurality of support piece receiving grooves for accommodating one end of the gap maintaining case support piece 182 are formed at the upper end of the inner side.

The front core bush 119 accommodates a part of the shaft flange 164 to be described later and is accommodated in the front core bush receiving portion 112. The front core bush 119 smoothes the rotational movement of the magnet rotating member 160 when applying or releasing the suction magnetic force to the steel workpiece placed on the seating member 135, that is, when the magnetic force is turned on or off. It is made of a known C3603 material made of phosphorus copper to prevent magnetic communication between the front core 110 and the magnet pivot member 160.

The rear core 120 is also made of SS400 material and, like the front core 110, absorbs the magnetic force of the rotating magnet 151 and the fixed magnet 152 disposed nearby when the steel workpiece is fixed to the seating member 135. It serves to increase the adsorption magnetic force by transferring the magnetic force to, and includes a rear core body 121 and the rear core bush 129.

The rear core body 121 is also long in the horizontal direction and has a narrow rectangular parallelepiped shape, and a coupling bolt b coupled to the bolt coupling holes 101a and 102a is coupled to a bolt coupling hole (not shown) formed at the bottom thereof. And is opposed to the front core body 111 at the rear upper portion of the lower plate 100.

A plurality of rear core bush accommodating portions 122 are formed at the center of the rear core body 121, and hook engaging holes (not shown) are formed at both ends of the outer side surface, and are not shown in the drawing, A support piece receiving groove for receiving one end of the space keeping case support piece 182 is formed.

The rear core bush 129 accommodates the end of the shaft 162 which will be described later and is accommodated in the rear core bush receiving portion 122. The rear core bush 129 also smoothes the rotational movement of the magnetic rotating member 160 when the magnetic on or off operation is performed, and is made of a non-magnetic copper C3603 material between the rear core 120 and the magnetic rotating member 160. To prevent magnetic communication.

The intermediate core 130 is also made of SS400 material, and absorbs the magnetic force of the rotating magnet 151 and the fixing magnet 152 disposed nearby when the steel workpiece is fixed to adsorption, thereby transferring the magnetic force to the seating member 135. To increase the magnetic force.

The intermediate core body 131 has a rectangular parallelepiped shape having a longer length in the transverse direction than the front core 110 and the rear core 120 and has a coupling bolt coupled to the bolt fastening holes 101a and 102a ( b) is coupled to the bolt fastening hole (not shown) formed in the lower portion is coupled to the upper portion of the lower plate 100 at a predetermined interval between the front core 110 and the rear core 120.

A bolt fastening hole 131a is formed on the upper portion of the intermediate core body 131 to fix and seat each of the block-type seating members 135 using the fastening bolts b. A support piece receiving groove 132 is formed to receive one end of the case support piece 182. In addition, stopper coupling member receiving grooves 133 are formed at both ends of the intermediate core body 131 adjacent to the front core 110 and the rear core 120, respectively, and a plurality of shaft through holes 134 are formed at the center thereof. It is.

The seating member 135 seats an iron workpiece requiring suction fixing through magnetic force application. The seating member 135 is provided in a small block type made of SS400 and has an intermediate core by a fastening bolt b that is coupled to the bolt fastening holes 131a and 135a. A plurality of the upper surface of 130 is coupled at predetermined intervals. When the mounting member 135 is provided in such a small block type, not only the coupling to the intermediate core 130 is easy, but also when the mounting member 135 is broken due to continuous use, only the damaged mounting member 135 is easily repaired or replaced. There is convenience to do it.

The magnet accommodating case 140 is a known AC4B or AC4C material made of aluminum alloy, which is a nonmagnetic material, and a plurality of the magnet accommodating cases 140 are disposed in a direction perpendicular to the lower plate 100 between the cores 110, 120, and 130. . The magnet accommodating case 140 has a shaft through hole 144 through which the shaft 162 passes in the center portion thereof, and has two rotating magnets 151 through the shaft through hole 144 so as to have different polarities in the circumference. The magnet receiving hole 142 is received so as to be opposed to the reference. The magnet accommodating case 140 accommodates the rotating magnet 151 to protect the rotating magnet 151 from external shocks, and receives the rotational movement of the shaft 162 to the fixed magnet 152 for magnetic force application and release. The position of the rotating magnet 151 is changed 180 degrees.

The permanent magnet member 150 provides a magnetic force for absorbing and fixing or releasing the steel workpiece seated on the seating member 135 by the rotation of the magnetic opening and closing pivoting member 195, and the rotating magnet 151, A fixed magnet 152 and a residual magnet 153.

The rotating magnet 151 is made of a known NdFeB material, which is a ferromagnetic material, and the pair is accommodated and coupled to the magnet receiving holes 142 so as to have different polarities (see FIGS. 4 to 7). The rotating magnet 151 has a semi-circular shape in the present embodiment, but the shape and size thereof can be changed.

The fixed magnet 152 is also made of a known ferromagnetic NdFeB material or the like, and is arranged in the direction of law so that the left and right sides have the same polarity with respect to the rotating magnet 151 and is coupled to the intermediate core 130 (FIG. 4). To FIG. 7). In the present embodiment, the fixed magnet 152 has a long rectangular parallelepiped shape but its shape and size can be changed.

When the rotating magnet 151 rotates with respect to the fixed magnet 152 by the rotational movement of the shaft 162, the polarity is changed between the rotating magnet 151 and the fixed magnet 152. Accordingly, when the adjacent rotating magnets 151 and the fixed magnets 152 have the same polarity, the repulsive force acts on each other, and when the opposite polarities become the opposite polarities, the attraction force acts on each other, and thus the direction of the magnetic force changes.

The residual magnet 153 is assembled to be coupled between the cores 110, 120, and 130 so as to be disposed under the fixed magnet 152.

The residual magnet 153 is also made of a known NdFeB material, which is a ferromagnetic material, and when there is a difference in magnetic force between the rotating magnet 151 and the fixed magnet 152, the residual magnet 153 is corrected to eliminate the magnetic force difference for smooth magnetic application and release. do.

On the other hand, unnecessary magnetic interference occurs between the adjacent stationary magnets 152 located between the two magnet receiving cases 140.

The magnetic force blocking member 155 is made of non-magnetic SUS304 material, and is disposed in a vertical direction between adjacent fixed magnets 152 as shown in FIG. 2, thereby preventing unnecessary magnetic interference by preventing magnetic communication between adjacent fixed magnets 152. .

Although not shown in the drawings, the magnetic force blocking member may be provided inside the front core 110, the rear core 120, or the intermediate core 130 of the portion corresponding to the magnetic force blocking member 155, and the magnet In order to eliminate unnecessary magnetic interference between the two rotating magnets 151 having different polarities accommodated in the housing case 140, the front core 110, the rear core 120, or the portion of the corresponding portion between the two rotating magnets 151. The magnetic force blocking member may also be provided inside the intermediate core 130.

The magnet rotating member 160 is made of a known S45C material and rotates the rotating magnet 151 with respect to the fixed magnet 152 to change the magnetic polarity, thereby applying or releasing the attracting magnetic force to the upper part of the seating member 135, and the shaft 162. ), Shaft flange 164, spring pin 166 and hand socket coupling 168.

The shaft 162 passes through the inside of the front core bush 119 accommodated in the front core bush accommodating part 112, the shaft through holes 134 and 144 of the middle core 130 and the magnet accommodating case 140, and the rear side thereof. One end is coupled to the rear core bush 129 accommodated in the core bush receiving portion 122.

The shaft 162 transmits the rotational movement of the magnetic force opening / closing rotating member 195 to the magnet accommodating case 140 to change the position of the rotating magnet 151 relative to the fixed magnet 152 so that the magnetic polarity is changed.

The shaft flange 164 protrudes from one side of the shaft 162, and is partially accommodated in the front core bush 119 to firmly support the shaft 162. Inside the shaft flange 164 is formed a spring pin receiving hole (164a) for receiving the spring pin 166.

The spring pin 166 is partially protruded from the spring pin receiving hole 164a, and although not shown in the drawing, the magnetically open / close rotating member is caught by the protruding portion of the spring pin engaging portion formed inside the shaft fixing member body 171. By limiting the rotation angle of the shaft 162 according to the rotational movement of (195) to ensure a smooth on / off operation.

The hand socket coupling part 168 protrudes outward from the shaft flange 164 and is received and coupled to the hand socket 199 of the magnetic opening and closing rotating member 195 to rotate the rotational movement of the magnetic opening and closing rotating member 195. 162).

The shaft fixing member 170 has a hand socket coupling part through hole 172 formed therein, which is a known 2124 material made of aluminum, and includes a shaft fixing member main body 171, a rubber first O-ring 173, and a second O-ring ( 174).

The shaft fixing member main body 171 is received and coupled to the shaft fixing member receiving portion 114 in a state in which a part of the shaft flange 164 is accommodated through the hand socket coupling portion through-hole 172, thereby deviating from the position of the shaft 162. To prevent.

The first O-ring 173 fills the gap between the shaft fixing member accommodating portion 114 and the shaft fixing member main body 171, and the second O-ring 174 passes through the shaft flange 164 and the hand socket engaging portion through hole 172. The gap between the gaps is prevented to prevent foreign substances or moisture from penetrating into the front core 110.

The side cover 175 is made of non-magnetic SUS304 material, and the plate-shaped main body 176 is provided with a stopper fastening hole 176a and welding holes 177 at predetermined intervals, respectively.

Side cover 175 is coupled to the side of each core (110, 120, 130) by welding through the welder 177 to maintain and secure the gap between each core (110, 120, 130) and permanent magnets from foreign matter or impact It protects the inside of the chuck and prevents unnecessary magnetic force from dissipating to the side, preventing unnecessary magnetic force from being absorbed on the side of the magnetic tool, such as chips that fall from the steel workpiece during the processing of steel tools owned by the worker. Minimize losses.

The spacing case 180 is a bar-shaped SUS304 material, which is seated on the spacing case support piece 182 inserted into and coupled to the support piece receiving grooves 132 of the respective cores 110, 120, and 130. It is coupled to the top of each of the cores 110, 120, 130 by sieve welding. The space maintaining case 180 maintains and secures a gap between the cores 110, 120, and 130 together with the side cover 175, and protects the interior of the permanent magnet chuck from foreign matter or impact.

Hook 185 is inserted into the hook coupling hole (111a) formed on the outside of the front core 110 and the rear core 120 with a washer (c) therebetween. Hook 185 is fastened to the carrying ring when carrying the permanent magnet chuck for convenience of movement.

The stopper 190 is made of SS400 material and the coupling bolt (b) is coupled to the stopper fastening hole 190a through the stopper fastening hole 190a through which the part is spaced apart from the center, and then is coupled again to the stopper fastening hole 176a and the stopper coupling member. By being sequentially fastened to the receiving groove 133 is coupled to the outer top of the left side cover 175 rotatably in a vertical direction. In addition, the stopper 190 is rotatably coupled to the outer upper end of the rear core 120 in a vertical direction in the same manner.

The stopper 190 protrudes upward from the rear core 120 or the side cover 175 by rotation, thereby assisting the suction force of the permanent magnet member 150 to move the steel workpiece seated on the seating member 135. It protrudes out of the back core 120 or the side cover 175 to prevent it from protruding or falling out of the permanent magnet chuck. The stopper 190 may also be coupled to the right side cover 175.

The magnetic opening / closing rotating member 195 includes a rotating handle 197 and a hand socket 199.

Rotating handle 197 is provided in the rod type can be easily generated by the operator manually gripping force.

The hand socket 199 is connected in a direction perpendicular to the end of the rotation handle 197, and receives and engages the hand socket coupling portion 168 therein to transmit the rotational movement of the rotation handle 197 to the shaft 162. do.

Hereinafter, a method of operating a permanent magnet chuck according to an embodiment of the present invention will be described in detail with reference to FIGS. 4 to 7.

4 is an operation perspective view of a permanent magnet chuck according to an embodiment of the present invention for explaining the magnetic force off state, Figure 5 is a magnetic force arrangement of the permanent magnet chuck according to an embodiment of the present invention in the magnetic force off state, Figure 6 is a magnetic force Permanent magnet chuck according to an embodiment of the present invention for explaining the on state is a perspective view of the operation of the permanent magnet chuck, Figure 7 is a magnetic force arrangement of the permanent magnet chuck according to an embodiment of the present invention in the magnetic force on state.

First, as shown in FIGS. 4 and 5, the magnetic force off state, which is a magnetic release state of the permanent magnet chuck, represents a state in which no adsorptive magnetic force is generated above the seating member 135.

That is, since the rotating magnet 151 of opposite polarity is located adjacent to the fixed magnet 152, the magnetic force is formed only in the interior as shown in FIG. 5 by the attraction force between the fixed magnet 152 and the adjacent rotating magnet 151. The same magnetic force is also formed inside the cores 110, 120, and 130 so that no adsorption magnetic force is generated to the outside of the seating member 135.

After seating the steel workpiece on the seating member 135 in this state, as shown in FIGS. 6 and 7, the operator rotates the magnetic opening / closing rotating device 195 clockwise manually 180 degrees in the shaft 162. Rotates to rotate the rotating magnet 151 by 180 degrees.

As a result, the permanent magnet chuck is in a magnetic force-on state in which magnetic force is applied, and thus a suction magnetic force is generated and applied to the seating member 135.

That is, since the rotating magnet 151 of the same polarity is changed to be positioned adjacent to the fixed magnet 152 by the rotational motion, repulsive force is generated between the fixed magnet 152 and the adjacent rotating magnet 151, and accordingly each core Magnetic force is formed in the upper portion (110, 120, 130) of the suction member is generated to the outside of the upper portion of the seating member 135 it is possible to fix the steel workpiece.

On the other hand, when the operator rotates the magnetic opening and closing rotation device 195 again by 180 degrees in the counterclockwise direction manually, the suction magnetic force is released to release the fixing of the steel workpiece, thereby enabling the movement and removal of the steel workpiece.

According to the permanent magnet chuck according to the present invention as described above, even if a simple configuration without the addition of a separate power source supply or equipment, the operator using the magnetic opening and closing rotation device 195 by hand for permanent magnet member ( There is an advantageous effect of applying or releasing the adsorption magnetic force to the seated steel workpiece through the rotation operation of 150).

In addition, according to the permanent magnet chuck according to the present invention, a plurality of permanent magnet members 150 are efficiently disposed in the vertical direction to enable the change in the direction of magnetic force without increasing the overall size, according to the size of the steel workpiece There is an advantageous effect that can effectively apply or disassemble a strong adsorption magnetic force.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

100: lower plate 101: base plate
102: auxiliary plate 110: front core
111: front core body 112: front core bush receiving portion
114: shaft fixing member receiving portion 119: front core bush
120: rear core 121: rear core body
122: rear core bush receptacle 129: rear core bush
130: intermediate core 131: intermediate core body
132: support piece receiving groove 133: stopper coupling member receiving groove
134, 144: shaft through hole 135: seating member
140: magnet housing case 142: magnet housing hole
150: permanent magnet member 151: rotating magnet
152: fixed magnet 153: residual magnet
155: magnetic force blocking member 160: magnetic rotating member
162: shaft 164: shaft flange
166: spring pin 168: hand socket coupling portion
170: shaft fixing member 171: shaft fixing member body
172: hand socket coupling through hole 173, 174: O-ring
175: side cover 176: side cover body
177 welder 180 spacing case
182: spaced case support 185: hook
190: stopper 195: magnetic opening and closing rotating member
197: rotating handle 199: hand socket

Claims (16)

Bottom plate,
A front core coupled to the front upper portion of the lower plate,
A rear core coupled to the rear upper portion of the lower plate,
At least one intermediate core coupled to an upper portion of the lower plate at a predetermined interval between the front core and the rear core,
Block type seating member detachably coupled to the upper portion of the intermediate core,
A plurality of permanent magnet members disposed between the front core, the rear core and the intermediate core in a direction perpendicular to the lower plate,
A plurality of magnet accommodating cases accommodating a part of the permanent magnet member;
At least one magnet rotating member including a shaft for rotating the permanent magnet member accommodated in the magnet receiving case in a direction perpendicular to the lower plate, and
Magnetically open / close rotating member that transmits rotational force to the magnetic rotating member by manual rotation.
Including;
The permanent magnet member
A pair having a different polarity is disposed correspondingly, and includes a rotating magnet whose position is changed by the rotation of the shaft, and a fixed magnet arranged to have different polarities on the left and right sides of the rotating magnet,
The intermediate core is
A shaft through hole through which the shaft passes is formed, and absorbs the magnetic force of the rotating magnet and the fixed magnet disposed in the vicinity of the suction work of the steel workpiece seated on the seating member to transfer the magnetic force to the seating member,
The magnet housing case
A shaft passage hole through which the shaft passes is formed in the center portion, and a magnet receiving hole is formed in the circumference to accommodate the pair of rotating magnets, respectively.
Magnetic blocking member which is located between the adjacent fixed magnets to block magnetic interference between each other
Further comprising
Permanent magnet chuck. In claim 1,
The front core is
Includes a front core bush,
The front core bush receiving portion and the shaft fixing member receiving portion for receiving the front core bush is formed
Permanent magnet chuck. In claim 1,
The rear core is
Includes a rear core bush,
The rear core bush receiving portion for receiving the rear core bush is formed
Permanent magnet chuck. delete delete delete delete In claim 2,
The magnetic rotating member
A shaft flange provided at one end of the shaft,
A spring pin coupled to the inside of the shaft flange,
A coupling part provided outside the shaft flange and coupled to the magnetic opening / closing rotating member.
Containing
Permanent magnet chuck. 9. The method of claim 8,
A shaft fixing member accommodating and coupling at least a portion of the shaft flange and accommodating and coupled to the shaft fixing member receiving hole
Further comprising
Permanent magnet chuck. In claim 1,
Side covers respectively coupled to side surfaces of the front core, the rear core and the intermediate core, and
A stopper coupled to the rear core or at least one side of the side cover so as to protrude by rotation in a vertical direction.
Further comprising
Permanent magnet chuck. In claim 1,
Coupled to an upper portion between the front core, the rear core and the intermediate core
Spacing case
Further comprising
Permanent magnet chuck. 12. The method of claim 11,
A support piece coupled to the front core, the rear core and the intermediate core to support the spacing case
Further comprising
Permanent magnet chuck. In claim 1,
Residual magnets disposed on one side of the fixed magnet to correct the magnetic strength of the rotating magnet and the fixed magnet
Further comprising
Permanent magnet chuck. delete In claim 1,
An additional magnetic force blocking member inserted in a predetermined position of at least one of the front core, the rear core and the intermediate core
Further comprising
Permanent magnet chuck. 9. The method of claim 8,
Magnetic opening and closing rotation member
Pivot handle, and,
A hand socket coupled to the rotation handle in a vertical direction and accommodating to the coupling portion;
Containing
Permanent magnet chuck.

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