KR101624252B1 - magnetic force adjustable grip apparatus for press - Google Patents

magnetic force adjustable grip apparatus for press Download PDF

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Publication number
KR101624252B1
KR101624252B1 KR1020160042717A KR20160042717A KR101624252B1 KR 101624252 B1 KR101624252 B1 KR 101624252B1 KR 1020160042717 A KR1020160042717 A KR 1020160042717A KR 20160042717 A KR20160042717 A KR 20160042717A KR 101624252 B1 KR101624252 B1 KR 101624252B1
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KR
South Korea
Prior art keywords
magnetic
receiving
accommodating
unit
receiving portion
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Application number
KR1020160042717A
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Korean (ko)
Inventor
허종건
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허종건
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Priority to KR1020160042717A priority Critical patent/KR101624252B1/en
Application granted granted Critical
Publication of KR101624252B1 publication Critical patent/KR101624252B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B33/00—Hand tools not covered by any other group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/002—Magnetic work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P1/00—Safety devices independent of the control and operation of any machine

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

In order to improve productivity by facilitating movement and separation and separation work of a work material, the present invention is characterized in that the present invention is provided with a lever support portion between an end portion having a receiving portion formed with a first through hole on an upper surface thereof and a second end portion A support frame part; A pressing part which is provided on the upper side of the support frame part and has a fastening part corresponding to the upper surface of the receiving part at one end and is extended adjacent to the grip part at the other end, A lever frame portion formed; A magnetic portion which is accommodated inside the receiving portion so that the workpiece is adhered thereto and has an end portion extending through the first through hole and the coupling portion and extending outwardly from an upper surface of the receiving portion, A rotation interval adjusting unit provided on an outer side of the upper surface of the accommodating unit and coupled to one end of the elevating extension unit to rotate to provide a rotational force to move the magnetic unit up and down; And a spring provided to elastically support an interval between the inner surface portion of the receiving portion and the magnetic portion, wherein one side of the outer circumferential surface of the magnetic portion is engaged with one side of the inner surface of the side wall portion of the receiving portion, Wherein at least one or more non-continuous guide portions are formed on mutually opposing surfaces of the accommodating portion.

Description

[0001] The present invention relates to a magnetic force adjustable grip apparatus for press,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a magnetic force-adjustable safety grip device for a press, and more particularly, to a magnetic force-controlled safety grip device for a press with improved productivity by facilitating movement and separation of a workpiece.

Generally, a press is a device for pressing a workpiece, which has been put into a mold or the like, by a lever, a screw, or a hydraulic pressure to form a predetermined shape. At this time, the press can be processed by extrusion, drawing, molding, cutting and bending. The press is divided into manual hand press, eccentric press, and hydraulic type hydraulic pressure, mechanical press and the like.

On the other hand, the above-described press work is practiced manually by the workers. At this time, a serious safety accident occurred in which a hand or a finger was caught between the elevating and lowering presses of the press due to a mistake of a worker or a malfunction of the machine, or even a severing of a safety accident occurred.

Therefore, a safety measure for solving the above-mentioned problems has been partially disclosed and used. For example, a method has been disclosed in which a cuff-shaped safety collar is installed on both sides of a forming table of the press, and an operator performs the operation after wearing the safety collar on his / her wrist. However, the safety ring has a problem that the workability is deteriorated because the flow distance is limited. Also, the installation of the safety collar is complicated and the use of the safety collar is avoided due to a psychological rejection to be worn on the wrist.

Another safety device includes a method of installing an electromagnetic sensor on both sides of the forming table so that the pressing operation is stopped when the operator's hand senses that the hand enters the hoist. However, when the installed electromagnetic sensor is frequently pressed in opposite angles due to the vibration of the machine during the pressing operation, it does not detect that the hand is inserted properly, thus preventing the safety accident. In addition, since such an electronic device is expensive to install, there is a problem that it is difficult to use the electronic device substantially in a small workplace.

In order to overcome the above-described problems, there has been disclosed a part of a press safety valve which is provided with a handle at one end and a magnet at the other end to move a workpiece by a magnetic force. However, since the magnetic force range of the magnet is uniformly formed in the conventional press safety sphere, when the workpiece is small or thin, a plurality of the work pieces are adhered to reduce the working efficiency.

Korean Registered Utility Model No. 20-0407348

In order to solve the above problems, the present invention provides a magnetic force-adjustable safety grip device for a press which is easy to move and separate from and move away from a workpiece, and is improved in productivity.

In order to solve the above-described problems, the present invention provides a support frame comprising: a support frame part having a support part provided between a first end having a receiving part formed on an upper side thereof with a first through-hole formed therein and a second end; A pressing part which is provided on the upper side of the support frame part and has a fastening part corresponding to the upper surface of the receiving part at one end and is extended adjacent to the grip part at the other end, A lever frame portion formed; A magnetic portion which is accommodated inside the receiving portion so that the workpiece is adhered thereto and has an end portion extending through the first through hole and the coupling portion and extending outwardly from an upper surface of the receiving portion, A rotation interval adjusting unit provided on an outer side of the upper surface of the accommodating unit and coupled to one end of the elevating extension unit to rotate to provide a rotational force to move the magnetic unit up and down; And a spring provided to elastically support an interval between the inner surface portion of the receiving portion and the magnetic portion, wherein one side of the outer circumferential surface of the magnetic portion is engaged with one side of the inner surface of the side wall portion of the receiving portion, Wherein at least one or more non-continuous guide portions are formed on mutually opposing surfaces of the accommodating portion.

delete

The spring is preferably formed in a conical shape.

In addition, it is preferable that the holder nut portion is further provided with a screw-tightened portion that surrounds the opened lower edge of the receiving portion and is selectively raised and lowered along the outer peripheral surface of the receiving portion by a rotation operation.

It is preferable that a locking step is formed at the end of the lifting and extending part to prevent separation from the rotation interval adjusting part, and a restricting groove part in which one end of the spring is inserted and constrained is formed on the upper surface of the magnetic part.

Through the above-mentioned solution, the magnetic force-controlled safety grip device for press according to the present invention provides the following effects.

First, the magnetic portion, which is engaged with the magnetic portion, is moved up and down in the vertical direction by a simple operation of rotating the rotation interval adjusting portion provided on the outer side of the receiving portion, so that the required magnetic range can be flexibly The productivity can be remarkably improved due to the quick and accurate operation.

Secondly, since the spring supporting the gap adjusted by the rotation operation of the rotation interval adjusting portion while being positioned at the lever frame portion is elastically supported by being provided in a state of being substantially confined between the inner circumferential surface of the accommodation portion and the magnetic portion, And the inconvenience that the worker's gloves, sleeves or the like are caught is eliminated by providing the spring on the outside so that the operation reliability and work convenience can be remarkably improved.

Thirdly, the magnetic force range can be more resiliently adjusted by the extended length of the holder nut portion screwed to the lower edge of the receptacle, and the outer surface of the workpiece is substantially in contact with the one end of the holder nut portion, Since the holder nut portion can be separately removed and replaced while preventing abrasion and breakage of the bottom end portion, the maintenance property can be remarkably improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a magnetic force-controlled safety grip device for pressing according to an embodiment of the present invention; FIG.
2 is a cross-sectional view of a magnetic force-controlled safety grip device for pressing according to an embodiment of the present invention;
Figs. 3A and 3B are schematic views showing a cross section in the direction of AB in Fig. 2 and a modification thereof. Fig.
4 is a cross-sectional view illustrating a state of use of a magnetic force-adjustable safety grip device for pressing according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a magnetic force-adjustable safety grip device for pressing according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a magnetic force control type safety grip device for pressing according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of a magnetic force control type safety grip device for pressing according to an embodiment of the present invention, FIG. 2 is a sectional view of a magnetic force control type safety grip device for pressing according to an embodiment of the present invention, And Fig. 3B is a schematic view showing a cross section in the direction of AB in Fig. 2 and a modification thereof. 4 is a cross-sectional view illustrating a state of use of the magnetic force-controlled safety grip device for pressing according to an embodiment of the present invention.

1 to 4, a magnetic force control type safety grip device 100 for pressing according to an exemplary embodiment of the present invention includes a support frame portion 10, a lever frame portion 20, a magnetic portion 30, A rotation interval adjusting unit 40, and a spring 50. [0034]

In detail, the support frame part 10 is provided in the form of a bar extending to a predetermined length, and the accommodating part 11 is provided at one end thereof. Here, the receiving portion 11 is formed with a receiving space having a circular or polygonal cross-sectional shape, and the lower side is opened. The first through hole 14 is preferably formed at the center of the upper surface 11a. Here, the accommodating portion 11 accommodates the magnetic material 30 to be described later, and the material to be processed, which is made of a magnetic metal material, may be attached by a magnetic force of the magnetic portion 30. [

The grip portion 12 may be provided on the other end of the support frame portion 10. In detail, the grip portion 12 may be formed of a material having a predetermined elasticity so as to minimize the fatigue of the worker, which may be formed into a profile having a volume easy for the operator to grasp. Further, although not shown in the drawing, a non-slip surface irregular portion may be formed on the outer surface of the grip portion 12 to prevent the grip portion 12 from slipping off the operator's hand.

Here, the space between the receiving portion 11 and the grip portion 12 is made of a material having a predetermined length and capable of supporting a load in a state in which the working material is attached .

In addition, it is preferable that a lever supporting portion 13 is provided between one end portion of the receiving portion 11 and the other end portion where the grip portion 12 extends. Here, the lever frame portion 20, which will be described later, is fastened to the lever support portion 13 and can be seesawed by the lever principle on the lever support portion 13.

Meanwhile, it is preferable that the lever frame part 20 is provided on the upper side of the support frame part 10. A locking part 21 corresponding to the upper surface of the accommodating part 11 is formed at one end of the lever frame part 20 and a pressing part 22 extending from the other end of the lever frame part 20 adjacent to the grip part 12, .

At this time, it is preferable that one side of the lever frame part 20 between the one end of the coupling part 21 and the other end of the pressing part 22 is connected to the lever support part 13.

More specifically, when the operator presses the pressing part 22 while holding the grip part 12, the fastening part 21 is moved from the upper surface 11a of the receiving part 11 around the lever supporting part 13 Seesaw motion so as to be spaced upward. As the magnetic portion 30 accommodated in the receiving portion 11 interlocks with the coupling portion 21, the workpiece attached by the magnetic force can be selectively removed.

That is, by using the magnetic force-adjustable safety grip device 100 according to the present invention, the operator does not need to grip the workpiece directly by hand and insert it into the inside of the press, so safety can be remarkably improved.

Here, at least one bending portion may be provided on either side of the lever frame portion 20. This minimizes the pressing force of the pushing portion 22 and maximizes the interval at which the magnetic portion 30 provided inside the accommodating portion 11 is moved to the upper side of the inner circumferential surface of the accommodating portion 11 The operability can be remarkably improved.

On the other hand, the magnetic portion 30 is preferably accommodated in the receiving portion 11. Here, the magnetic portion 30 includes a body portion 31 having a magnet to which the workpiece is attached by magnetic force, and a lift-up portion 32 extending upward from the body portion 31 .

In detail, the body portion 31 may be provided as a case in which the magnet is accommodated. The body portion 31 may include the upwardly extending lid 32 extending upward from the center portion and having a thread 32a formed on the outer circumferential surface thereof. One end portion 32b of the upwardly projected portion 32 passes through the first through hole 14 and the second through hole 24 formed in the fastening portion 21 so that the upper end of the receiving portion 11 It is preferable to extend so as to protrude outside the upper surface 11a.

It is preferable that the rotation interval adjusting unit 40 is provided on the outer side of the upper surface 11a of the accommodating unit 11 and is fastened to the one end 32b of the upstand 32.

At this time, it is preferable that the rotation interval adjusting unit 40 is formed with a screw groove 40a on the inner circumferential surface thereof. That is, if the rotation interval adjusting unit 40 is rotated in the circumferential direction, the screw thread 32a of the upright laminating unit 32 is screwed into the thread groove 40a of the rotation interval adjusting unit 40 . The body portion 31 of the magnetic portion 30 can be vertically transferred to the upper side 11c of the inner circumferential surface of the receiving portion 11 as the up /

At this time, it is preferable that the elevated portion 32 extends longer than the length of the side wall portion 15 of the accommodating portion 11. When the body portion 31 of the magnetic portion 30 is disposed at a position adjacent to the lower edge of the accommodating portion 11 by the rotation operation of the rotation interval adjusting portion 40, The magnetic force range can be maximum.

In addition, when the body portion 31 is raised and lowered to the upper side 11c of the inner peripheral surface of the receiving portion by the rotation operation of the rotation interval adjusting portion 40, the range of the magnetic force for attaching the workpiece can be gradually reduced. Accordingly, since the range of the magnetic force can be easily adjusted according to the thickness of the workpiece, the ease of use can be remarkably improved.

The rotation interval adjusting part 40 is seated on the upper surface of the coupling part 21 and when the pressing part 22 is pressed, the coupling part 21, which seesaw around the lever supporting part 13, And the rotation interval adjusting unit 40 is closely contacted with the upper surface of the rotation interval adjusting unit 40. The magnetic portion 30 is received in the receiving portion 11 but is interlocked with the one end portion 32b of the upwardly projecting portion 32 being substantially fixed to the rotation interval adjusting portion 40. [ Accordingly, since the load of the magnetic portion 30 is prevented from being deformed or damaged by being applied to the receiving portion 11, the durability of the magnetic force-regulating safety grip device 100 for press can be remarkably improved.

In addition, a latching step 33 may be provided at one end of the upright laminating unit 32. That is, even if the rotation interval adjusting unit 40 is continuously rotated, it can be prevented from being separated from the magnetic portion 30.

That is, according to the present invention, by controlling the attachment interval formed between the workpiece and the magnetic part (30) which is in close contact with the lower edge (11b) of the accommodating part (11) ) Can be flexibly adjusted. As a result, the machined workpiece is prevented from unnecessarily overlapping and multiply adhering by the magnetic force, so that the breakage of the mold or the defective product can be minimized and the productivity can be remarkably improved.

Further, the rotation interval adjusting unit 40 is provided outside the upper surface 11a corresponding to the lower side of the accommodating unit 11 to which the workpiece is attached, so that interference with the workpiece can be minimized during the rotation operation . Accordingly, since the rotation interval adjusting unit 40 can be easily rotated even in the state where the workpiece is attached, the operation can be easily performed in accordance with the magnetic force required for each workpiece, and the work convenience can be remarkably improved.

At this time, the side surface of the rotation interval adjusting unit 40 may be provided with a protrusion / depression groove to prevent slippage during the rotation operation. On the upper surface of the rotation interval adjusting unit 40, A marking unit may be further provided.

It is preferable that the spring 50 is provided between the inner surface of the accommodating portion 11 and the magnetic portion 30. The spring 50 is provided to surround the outer periphery of the upright laminating part 32 and is elastically restored to the support part 11 formed between the accommodation part 11 and the magnetic part 30 by elasticity Can support.

Accordingly, in a state in which the pressing portion 22 is not pressed, the magnetic portion 30 is supported under the receiving portion 11 so that the workpiece can be stably attached by the magnetic force. When the pushing operation of the pressing portion 22 is completed, the inner surface of the rotation interval adjusting portion 40, the upper surface of the coupling portion 21, and the upper surface of the receiving portion are moved by the elastic restoring force of the spring 50 The lever frame portion 20 can be retracted in the close contact state.

When the rotation interval of the rotation interval adjusting unit 40 is narrowed, the spring 50 is elastically contracted, and when the rotation operation is interrupted, the support interval can be elastically supported by the elastic restoring force. Accordingly, the range of the magnetic force adjusted according to the thickness of the workpiece can be maintained constantly and can be stably attached to the workpiece, so that safety can be remarkably improved.

Further, since the spring 50 is disposed between the magnetic portion 30 and the inner circumferential surface of the receiving portion 11 in a state where the spring 50 is substantially confined between the magnetic portion 30 and the inner circumferential surface of the receiving portion 11, The inconvenience of wearing gloves, sleeves and the like is solved, so that the convenience of operation can be remarkably improved.

At this time, the spring 50 is preferably formed in a conical shape. In detail, the spring 50 may be provided in a conical shape in which the diameter of the coil gradually narrows. Further, the spring 50 may be formed such that the outer diameter of the front coil that is continuously coiled is smaller than the inner diameter of the rear coil.

Accordingly, when the pressing portion 22 is pressed, the magnetic portion 30 interlocked with the coupling portion 21, which is spaced upward from the upper outer surface of the receiving portion 11 by the lever principle, (11c) of the inner circumferential surface of the base plate (11). As a result, the magnetic force range of the magnetic portion 30 can be easily removed from the workpiece. When the magnetic portion 30 is raised and lowered by rotating the rotation interval adjusting portion 40, the mounting interval formed between the magnetic portion 30 and the lower edge 11b of the accommodating portion 11 becomes wider The magnetic force range of the magnetic portion 30 can be adjusted more flexibly.

3A and 3B, it is preferable that at least one or more discontinuous guide portions 16, 116, 36, and 136 are formed on mutually opposing surfaces of the magnetic portion 30 and the receiving portion 11, respectively. It is preferable that the discontinuous guide portion 16 formed on the magnetic portion 30 is formed substantially at one side of the outer circumferential surface of the body portion 31.

The magnet portion 30 is engaged with the inner surface of the side wall portion 15 of the receiving portion 11 so that the magnetic gap portion 30 can be moved up and down only in the vertical direction .

3A, the discontinuous guide portions 16 and 36 are formed on the mutually opposing surfaces of the inner peripheral surface of the receiving portion 11 and the outer peripheral surface of the magnetic portion 30, And a restricting protrusion part which is inserted and engaged with the restricting groove. When the rotation interval adjusting unit 40 rotates, the restricting protrusion is transferred in the up and down direction of the restraining groove, but restrains the rotation in the circumferential direction, so that the magnetic part 30 is moved inward It can be moved up and down.

3B, the discontinuous guide portions 116 and 136 are formed by at least one or more D-cut portions on the inner peripheral surface of the receiving portion 111 and the outer peripheral surface of the magnetic portion 130, . When the interval adjusting unit 40 is rotated, the dimples are intertwined with each other, so that the magnetic unit 130 is vertically conveyed. However, as the rotation in the circumferential direction is restricted, Can be moved.

As a matter of course, it may be utilized as a non-continuous guide portion in which the outer surface of the magnetic portion having a polygonal cross section and the opposite side wall portions of the accommodating portion formed with the polygonal inner circumferential surface corresponding thereto are engaged. At this time, the polygonal shape may be a polygonal shape such as a square shape, a pentagonal shape, a hexagonal shape, or an elliptical shape, and such modifications fall within the scope of the present invention.

That is, the magnetic portion 30 is accommodated in the receiving portion 11, and as the non-continuous guide portions 16, 36, 116, and 136 corresponding to each other are engaged with each other, The circumferential rotational force can be substantially provided in the vertical direction of the magnetic portion 30. [ Accordingly, the mounting interval can be precisely controlled according to the rotation angle of the rotation interval adjusting unit 40, so that the magnetic force range can be flexibly adjusted according to the thickness of the workpiece.

The holder nut portion 60 is wound around the lower edge 11b of the receiving portion 11 so as to be lifted and lowered selectively along the outer peripheral surface of the receiving portion 11 by a rotation operation .

At this time, the holder nut portion 60 may be made of a metal material, or may be a semi-rigid material of high strength synthetic resin. Accordingly, since the occurrence of scratches can be minimized when the outer circumferential surface of the workpiece is closely contacted with the outer circumferential surface of the workpiece, the workability and productivity can be remarkably improved . The holder nut portion 60 may be made of a non-conductive material so as to be magnetized by the magnetic force of the magnetic portion 30 to prevent the workpiece from being directly attached thereto.

Here, the holder nut portion 60 may have a predetermined length, and a female screw portion 61 may be formed on the inner circumferential surface of the hollow portion through which the center portion passes. The outer peripheral surface of the lower edge of the receiving portion 11 may be provided with a male screw portion 11d screwed with the female screw portion 61. [

When the holder nut portion 60 is rotated, one end of the holder nut portion 60 is projected further downward than the lower edge portion 11b of the accommodating portion 11 . Accordingly, the workpiece is attached to the receiving portion 11 side by the magnetic force of the magnetic portion 30, and can be closely attached to one end portion of the holder nut portion 60 substantially.

Thus, it is possible to prevent the outer surface of the workpiece from being struck by the lower edge of the receiving portion 11, and to prevent the lower edge of the receiving portion 11 from being worn or damaged. In addition, even if one end of the holder nut portion 60 is worn out during long-time use of the magnetic force-adjustable safety grip device 100 for pressing, only the holder nut portion 60 needs to be rotated and removed to replace the holder nut portion 60. As a result, .

Further, since the holder nut portion 60 is screw-rotated along the outer circumferential surface of the accommodating portion 11, the adjustment range of the attachment interval between the magnetic portion 30 and the workpiece material becomes larger, It is possible. In addition, the operating width at which the magnetic portion 30 can be raised or lowered when the pushing portion 22 is pressed or the rotation interval adjusting portion 40 is rotated can be significantly increased.

4, when the rotation interval adjusting unit 40 is rotated, the magnetic portion 30 can be vertically moved up and down from the inside of the accommodating portion 11. As shown in FIG. The supporting space w2 between the upper side 11c of the inner circumferential surface of the accommodating portion 11 and the magnetic portion 30 is narrowed and the attachment between the magnetic portion 30 and the lower side edge of the accommodating portion 11 The gap w3 is widened and the magnetic force transmitted to the workpiece can be adjusted.

Furthermore, the mounting interval can be adjusted more widely according to the interval w4, where the holder nut portion 60 is screwed on the outer peripheral surface of the lower edge of the receiving portion 11 and is rotated and elevated and protruded.

The magnetic gap portion 30 is formed in the rotation gap adjusting portion 20 so that the magnetic gap portion 30 and the side wall portion 15 can be separated from each other by the discontinuous guide portions 16 and 36 formed on the mutually facing surfaces of the magnetic portion 30 and the side wall portion 15, 40 in the first embodiment. In addition, the spring (50) is provided between the inner surface of the accommodating portion (11) and the magnetic portion (30) in a state where the magnetic portion (30) is lifted and lowered.

In addition, at one end of the upright laminating unit 32, the engaging step 33 for preventing separation from the rotation interval adjusting unit 40 may be formed. Here, the engaging step 33 may be separately fastened to one end of the upright laminating unit 32. Accordingly, only by separating the engaging step portion 33, the magnetic portion 30 and the rotation interval adjusting portion 40 can be separated, and the spring 50 provided inside can be replaced, The water retention can be remarkably improved.

5 is a cross-sectional view illustrating a magnetic force-adjusting safety grip device for pressing according to another embodiment of the present invention. In the present embodiment, the basic configuration except for the magnetic portion and the rotation interval adjusting portion is the same as that of the above-described embodiment, so a detailed description of the same configuration will be omitted.

As shown in FIG. 5, the body portion 231 may be formed as a case in which the magnet is accommodated, and a screw groove portion 231a may be formed at a central portion thereof. The screw fastening portion 232 may be formed with a thread 232a on the outer circumferential surface so as to pass through the screw groove portion 231a formed in the body portion 231 and be screwed.

At this time, the upright smoothing portion 232 is formed such that one end thereof protrudes outside the upper surface of the receiving portion 11 through a first through hole formed in the center portion of the upper surface of the receiving portion 11 and a second through hole formed in the connecting portion Can be extended.

In addition, the rotation interval adjusting unit 240 is provided on the outer side of the upper surface of the accommodating unit 11, and may be fastened to one end of the upright louver 232. If the rotation interval adjusting unit 240 is rotated in the circumferential direction, the body portion 231 of the magnetic portion 230 is vertically elevated and lowered selectively corresponding to the longitudinal direction of the up-and- A rotational force can be provided.

Accordingly, when the body portion 231 of the magnetic portion 230 is disposed at a position corresponding to the other end portion of the lift-up portion 232, the range of the magnetic force for attaching the workpiece can be maximized.

Also, when the body portion 231 is lifted to the upper side of the inner peripheral surface of the accommodating portion 11 by the rotation operation of the rotation interval adjusting portion 240, the range of the magnetic force for attaching the workpiece can be gradually reduced . Accordingly, since the range of the magnetic force can be easily adjusted according to the thickness of the workpiece, the ease of use can be remarkably improved.

The other end of the elevation lever 232 is fixed to the other end of the elevation lever 232 so as to prevent the body 231 from being separated from the elevation lever 232 by a continuous rotation operation of the rotation interval adjuster 240, A jaw 233 may be provided.

In addition, the upper surface of the body portion 231 of the magnetic portion 230 may be provided with a restricting groove portion 231b to which one end of the spring 50 is inserted and constrained. Accordingly, even if the spring 50 is repeatedly contracted and restored by the rotation operation of the rotation interval adjusting unit 240 or the pressing operation of the pressing unit 22 (see FIG. 1), the spring 50 is released .

Accordingly, the magnetic force-adjustable safety grip device 100 for pressing according to the present invention is capable of preventing the magnetic force (magnetic force) 30 can be lifted and lowered in the vertical direction from the inside of the accommodating portion 11 and the required magnetic force range can be flexibly adjusted according to the thickness of the workpiece material so that the productivity due to quick and accurate work can be remarkably improved .

At this time, the spring 50, which supports the gap adjusted by the rotation operation of the rotation interval adjusting part 40 while the lever frame part 20 is positioned by the elastic restoring force, And the magnetic part (30), so that the stable coupling state is maintained and the operation reliability can be remarkably improved. In addition, conventionally, since the spring is provided on the outside, the inconvenience that the worker's gloves, sleeves, and the like are caught is eliminated, so that the convenience of operation can be remarkably improved.

In addition, the holder nut portion 60 is screwed to the lower edge of the receiving portion 11 so that the adjusting width of the attaching interval is further increased, and the lower edge of the receiving portion 11 is directly attached to the outer surface of the workpiece Wear and breakage can be prevented. In addition, since only the holder nut portion 60 can be separately removed and replaced, the maintenance property can be remarkably improved.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And these modifications fall within the scope of the present invention.

10: support frame part 11: accommodating part
12: grip portion 13: leverage support portion
16, 36: discontinuous guide portion 20: lever frame portion
21: fastening part 22:
30: magnetic part 31: body part
32: win-win lecture section 40: rotation interval adjusting section
50: spring 60: holder nut part
100: Self-regulating safety grip device for press

Claims (5)

A support frame part having a support part provided between the one end of the lower part of which is opened and the receiving part formed with the first through hole on the upper surface thereof and the other end part of which the grip part is extended;
A pressing part which is provided on the upper side of the support frame part and has a fastening part corresponding to the upper surface of the receiving part at one end and is extended adjacent to the grip part at the other end, A lever frame portion formed;
A magnetic portion which is accommodated inside the receiving portion so that the workpiece is adhered thereto and has an end portion extending through the first through hole and the coupling portion and extending outwardly from an upper surface of the receiving portion,
A rotation interval adjusting unit provided on an outer side of the upper surface of the accommodating unit and coupled to one end of the elevating extension unit to rotate to provide a rotational force to move the magnetic unit up and down; And
And a spring provided to elastically support a gap between the inner surface portion of the accommodating portion and the magnetic portion,
Wherein at least one or more non-continuous guide portions are formed on mutually opposing surfaces of the magnetic portion and the accommodating portion so that one side of the outer circumferential surface of the magnetic portion is engaged with one side of the inner side surface of the side wall portion of the accommodating portion, Safety grip device. delete The method according to claim 1,
Wherein the spring is formed in a conical shape. A support frame part having a support part provided between the one end of the lower part of which is opened and the receiving part formed with the first through hole on the upper surface thereof and the other end part of which the grip part is extended;
A pressing part which is provided on the upper side of the support frame part and has a fastening part corresponding to the upper surface of the receiving part at one end and is extended adjacent to the grip part at the other end, A lever frame portion formed;
A magnetic portion which is accommodated inside the receiving portion so that the workpiece is adhered thereto and has an end portion extending through the first through hole and the coupling portion and extending outwardly from an upper surface of the receiving portion,
A rotation interval adjusting unit provided on an outer side of the upper surface of the accommodating unit and coupled to one end of the elevating extension unit to rotate to provide a rotational force to move the magnetic unit up and down; And
And a spring provided to elastically support a gap between the inner surface portion of the accommodating portion and the magnetic portion,
Further comprising a holder nut portion surrounding the opened bottom edge of the receiving portion and being screwed so as to selectively move up and down along the outer circumferential surface of the receiving portion by rotating operation. A support frame part having a support part provided between the one end of the lower part of which is opened and the receiving part formed with the first through hole on the upper surface thereof and the other end part of which the grip part is extended;
A pressing part which is provided on the upper side of the support frame part and has a fastening part corresponding to the upper surface of the receiving part at one end and is extended adjacent to the grip part at the other end, A lever frame portion formed;
A magnetic portion which is accommodated inside the receiving portion so that the workpiece is adhered thereto and has an end portion extending through the first through hole and the coupling portion and extending outwardly from an upper surface of the receiving portion,
A rotation interval adjusting unit provided on an outer side of the upper surface of the accommodating unit and coupled to one end of the elevating extension unit to rotate to provide a rotational force to move the magnetic unit up and down; And
And a spring provided to elastically support a gap between the inner surface portion of the accommodating portion and the magnetic portion,
A stopping protrusion is formed at an end of the lifting and extending portion to prevent separation from the rotation interval adjusting portion,
And a restricting groove portion in which one end of the spring is inserted and constrained is formed on an upper surface of the magnetic portion.
KR1020160042717A 2016-04-07 2016-04-07 magnetic force adjustable grip apparatus for press KR101624252B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101915015B1 (en) 2018-08-31 2018-11-05 김수영 Apparatus for adjusting height of magnet for automatic chamfering machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060201282A1 (en) * 2005-03-09 2006-09-14 Lee Chang C Torque adjustable socket assembly
KR101318566B1 (en) 2013-07-22 2013-10-16 추창오 Multipurpose magnetic holder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060201282A1 (en) * 2005-03-09 2006-09-14 Lee Chang C Torque adjustable socket assembly
KR101318566B1 (en) 2013-07-22 2013-10-16 추창오 Multipurpose magnetic holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101915015B1 (en) 2018-08-31 2018-11-05 김수영 Apparatus for adjusting height of magnet for automatic chamfering machine

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