KR101159186B1 - Welding cable with easy to holder for the structure of grounding - Google Patents

Abstract

The present invention is provided with a pressing means for pressurizing the grounding cable to the connection portion provided on one side of the ground holder and is configured with a grounding portion is composed of a magnet on the other side is not only easy to connect the grounding cable, but also without regard to the shape of the grounding plate The present invention relates to a structure of a grounding holder for an easy welder that can be easily connected to a cable to enhance product competitiveness.

To this end, the present invention is formed with a receiving space having a predetermined depth formed with a female thread hole in the inner side relative to the entry direction of the ground cable and protrudes a predetermined height in the center end of the receiving space to branch the lines of the ground cable to enter Grounding means consisting of a grounding means and the connecting portion is provided with a connecting portion formed with a branching projection to be distributed on the end surface of the receiving space and extends from the connecting portion and a magnet is provided on either side to enable grounding by magnetic force at any position of the work table. It is characterized in that it comprises a; pressurizing means consisting of a gripping portion to facilitate the gripping of the pressing portion is provided with a male thread formed on the outer periphery of the outer periphery to be fastened to the female screw of the insertion hole is formed in the insertion hole is inserted into the ground cable.

Welding rod holder, (-) pole, ground connection means

Description

Welding cable with easy to holder for the structure of grounding}

The present invention relates to a structure of a grounding holder for a welder that is easy to connect a cable, and more particularly, a pressing unit capable of pressing the grounding cable with a connection portion provided on one side of the grounding holder is provided, and a grounding portion configured with a magnet on the other side is provided. The present invention relates to a structure of a grounding holder for a welder, which facilitates the connection of a grounding cable and enhances the product competitiveness of the grounding plate.

In general, arc refers to the arc-shaped spark that emits strong light and high temperature by discharging the moment when the electrode is lightly contacted with the base material by applying voltage between the electrode and the base material, and arc welding is generated between the electrode and the base material. This arc heat is used to melt the welded portion of the base material and then the parts are joined together by adding the volume of filler metal to the welded portion.

The welding machine is provided with a welding machine at a predetermined position, and the welding machine withdraws the negative polarity ground cable and the positive polarity electrode cable, respectively, and connects to the tong-type ground holder at the end of the grounding cable. Connect the clamp of the ground holder to the workbench.

In addition, the end of the electrode cable is connected to the electrode holder to the electrode holder to bite the electrode, welding the workpiece provided on the workbench.

However, in the related art, since the ground holder is configured in the form of a forceps, the worktable can be grounded by being limited to the width of the forceps of the forceps, there is a problem in that a worktable having a thickness greater than the width of the forceps of the forceps cannot be grounded.

In addition, the ground holder is made in the form of tongs, so when the ground holder is to be bited, it is possible to ground only on the outer circumferential surface, that is, the outer periphery or the end having the step, in which case an unspecified majority touches the grounding means by carelessness. In the case of the ground holder is separated from the problem that the welding work is impossible frequently occurs, and by this problem the operator has a secondary problem such as the addition of the work time, such as the need to re-ground the detached ground holder.

Or, due to this problem, in some cases, the welding work is performed while the ground holder is simply placed on the workbench, and in this case, discharge occurs between the workbench and the ground holder during the welding work. There was a problem that the holder is welded.

Alternatively, there was a case in which the grounding cable peeled off from the grounding cable was forcibly removed from the grounding cable and then welded to the workbench, but this was not possible to reuse.

In order to solve the problems as described above, an object of the present invention is to provide a connection portion on one side of the ground holder and to configure the grounding portion provided with a magnet on the other side, to configure the pressure holder to facilitate the connection of the ground cable to the connection portion Accordingly, the grounding cable can be easily separated and assembled, and in particular, a magnet provided in the grounding portion can be attached by a magnetic force without being bound by the thickness of the working table, so that the grounding of the working table and the grounding holder can be easily performed, resulting in discharge accidents that may occur during operation. It is related to the structure of the grounding holder for the welder easy to connect the cable to strengthen the product competitiveness to prevent the grounding and smooth grounding.

In order to achieve the above object, the structure of the cable holder of the present invention, which is easy to connect the cable, has an accommodation space having a predetermined depth in which a female thread hole is formed based on an entry direction of the ground cable, and an end of the accommodation space. The cross section is provided with a connecting portion formed with a branching protrusion protruding a predetermined height in the center to branch the lines of the entering ground cable to be distributed on the end surface of the receiving space and extending from the connecting portion, the magnet is provided on either side of which Grounding means consisting of a grounding portion to enable grounding by magnetic force even in the position and a male threaded portion is formed on the outer periphery so as to be fastened to the female threaded hole of the connecting portion, and a pressing portion having an insertion hole into which a grounding cable is inserted is provided in the center, and holding the pressing portion. Pressing means composed of gripping portion to facilitate And it characterized in that.

In the present invention, the grounding portion of the grounding means is a sliding groove having a predetermined depth and length on one side, a through hole penetrating to the end from the sliding groove, the restraining piece provided to slide along the longitudinal direction of the sliding groove, the One end is inserted into the through hole is fixed to the restraint piece and the other end is provided with an intermittent part is fixed to the magnet provided in the ground portion, the end pin is formed with a tip portion having a protruding length than the magnet and the elastic support for elastically supporting the fixing pin It is preferable that it is comprised by a member.

In the present invention, any one of the bottom surface of the connection portion of the grounding means and the front end of the pressing portion is formed with a pressing projection protruding to a certain height, the other is preferably further comprises a pressing groove of a shape corresponding to the pressing projection. .

In the present invention, it is preferable that the pressing means is formed integrally with the pressing portion and the gripping portion.

In the present invention, it is preferable that the insertion hole of the pressing portion further includes a branching hole having a shape corresponding to the branching projection of the connecting portion so as to amplify the fixing force by providing a wide contact area to the lines of the ground cable when the pressing means is fastened to the connecting portion. Do.

In the present invention, the one side contacting the connecting portion and the pressing means further includes the first and second serrations to prevent mutual loosening by any shock or vibration of a predetermined force or less, the first and second generations It is more preferable that any one or both sides of the connection portion and the pressing means provided with the ration further includes an elastic groove having a predetermined depth to allow the first and second serrations to be elastically supported to maximize the adhesion force when tightening each other. .

As described above, the connection part is provided on one side of the ground holder and the magnet is provided on the other side, and the pressurizing means is configured to facilitate the connection of the ground cable to the connection part. The magnet provided in the branch makes it easy to ground the workbench and the ground holder by attaching it by magnetic force without being bound by the thickness of the workbench, which prevents discharge accidents that may occur during work and strengthens the product competitiveness to make the ground smoothly. It is effective.

In addition, since the grounding holder is attached by magnetic force and grounded to the work table, the grounding means may flow even if an operator or an unspecified number touches the grounding device inadvertently, but there is an effect of re-grounding by magnetic attachment of the magnet. have.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings.

(Embodiment 1)

1 is a configuration diagram of a welder having a ground holder according to a first embodiment of the present invention, and FIG. 2 is an exploded cross-sectional perspective view of the ground holder according to the first embodiment of the present invention.

The welding machine 1 has a connecting cable 2 having a different polarity and a grounding cable 4 extending therefrom, a welding rod holder 3 having a welding rod bited at the end of the connecting cable 2, and the grounding cable 4. It is composed of a ground holder (5) fixed to the end of the fixed to the base material or the worktable (6).

The ground holder (5) is composed of a grounding means 10, one end of the grounding cable (4) is inserted, and a pressing means (40) for pressurizing the grounding cable (4) inserted into the grounding means (10) is fixed do.

The grounding means 10 is a means for fixing the grounding cable 4 to the worktable (6).

The grounding means (10) is composed of a connecting portion (30) into which the grounding cable (4) is inserted, and a grounding portion (20) fixed to the work table (6) by a magnet provided on one side and attached by magnetic force. .

The connection part 30 is formed with a receiving space 32 having a predetermined depth in which the female screw hole 33 is formed on the inside with respect to the direction in which the ground cable 4 enters.

In addition, the bottom surface 34 of the accommodation space 32 is protruded to a certain height in the center, branching so that the line of the grounding cable (4) to enter is distributed on the bottom surface 34 of the accommodation space (32) The projection 36 is further configured.

At this time, the branching projection 36 may be formed to protrude from the entire bottom surface 34 of the receiving space 32, but preferably a predetermined spaced space is formed so that the lines of the ground cable (4) to the spaced space It is configured to be distributed.

In addition, the branching projection 36 is a means for branching the wires of the grounding cable 4 to be distributed so as to be widely distributed on the bottom surface 34 of the accommodation space 32, and wider from the protruding end point to the bottom surface 34. The purge is preferably conical.

In addition, it is preferable to further form a crimping projection 37 having a predetermined height in the space between the bottom surface 34 and the branching projection 36, which is the ground of the ground cable 4 branched by the branching projection 36. This is to increase the fixing force by amplifying the contact area of the lines.

On the other hand, the outer periphery of the grounding means 10 or the connecting portion 30 is preferably configured to further cover a cover 38 for preventing an electric shock accident.

The cover 38 is fixed to the connecting portion 30 by various methods such as fixing by a separate fastening means such as fixing by a insert injection molding or a stop screw.

In addition, it is preferable to further form a first serration 39 on one surface of the cover 38, that is, one surface closely contacted with the pressurizing means 40 to be described later.

The ground portion 20 has a mounting groove 24 having a predetermined depth at one end to allow the magnet 22 to be seated.

In addition, it is preferable to further include a fixing screw 26 in which the magnet 22 is fixed to the grounding part 20 in the grounding part 20.

The fixing screw 26 is preferably configured such that one end is fixed to the magnet 22 and the other end is fixed to the ground portion 20 by fastening, but is not limited thereto. 22) Any means that can be fixed can be used, for example, it is possible to adhere to the adhesive.

The pressing means 40 is a pressing portion 410 for pressing and fixing the ground cable 4 entered into the connecting portion 30, and a holding portion provided in the pressing portion 410 to facilitate the user's gripping 420.

Then, the pressing portion 410 is a male screw portion 411 is formed on the outer periphery so as to be fastened to the female screw hole 33 of the connecting portion 30, the insertion hole 412 is inserted into the ground cable 4 in the center Is formed.

In addition, the front end surface 413 of the pressing unit 410, it is preferable to further form a pressing groove 414 of the shape corresponding to the pressing projection 37 of the connecting portion 30.

In addition, the pressing protrusion 37 or the pressing groove 414 is preferably made of a semi-circle to arc shape.

In addition, the insertion hole 412 of the pressing portion 410 is further formed with a branch hole 416 of the shape corresponding to the branching projection 36 of the connecting portion 30.

Meanwhile, one or more insert protrusions 418 are further formed on one side of the outer circumference of the pressing unit 410.

This is a means for preventing the gripping portion 420 from sliding in the axial direction or rotation in the pressing portion 410 when insert-molding the grip portion 420 to the pressing portion 410.

In addition, it is preferable to further form an expansion hole 419 in the pressing portion 410 to induce a stable entry of the ground cable 4 into the insertion hole 412.

The gripping portion 420 may be fixed to the pressing portion 410 by insert injection molding or may be used by various methods such as fixing by a separate fastening means such as a stop screw.

A second serration 422 is formed in the gripper 420 to be engaged with the first serration 39 of the connection part 30.

Here, the first and second serrations 39 and 422 smoothly pass when rotating in one direction, that is, the tightening direction, but more than a certain force when rotating in the disengaging direction, that is, an adult may apply more force. It is preferable that it is formed in a ratchet shape having a depth that can be overcome when given.

This prevents the pressing means 40 pressurized by the grounding means 10 to be arbitrarily released by the shock or vibration that may occur during operation, thereby preventing the risk of a safety accident.

On the other hand, the holding portion 420 is preferably formed with an elastic groove 424 having a predetermined depth so that the elasticity acts on the second serration 422.

The elastic groove 424 is easy when the first and second serrations 39 and 422 are engaged with each other when a predetermined force or more acts, as the elastic force acts when the second serration is crossed. It is a means to ride over.

Looking at the coupling relationship and the use state of the ground holder configured as described above are as follows.

3 is a cross-sectional view before coupling of the ground holder according to the first embodiment of the present invention, Figure 4 is a cross-sectional view of the coupling state of the ground holder according to the first embodiment of the present invention, see this.

Referring to FIG. 3, one end of the grounding cable 4 is inserted into the accommodation space 32 of the connection portion 30 of the grounding means 10.

At this time, the ground cable 4 is distributed on the bottom surface 34 while the covering is peeled off and the exposed lines branch through the branch protrusion 36 of the accommodation space 32, and the branch protrusion 36 and the bottom surface 34 The lines are also bent by the bent portion of).

Of course, the pressing means 40 is already inserted into the ground cable (4).

In addition, by pressing and fixing the pressing means 40 to the connecting portion 30, when the female screw hole 33 of the connecting portion 30 and the male screw portion 411 of the pressing portion 410 are mutually fastened, the pressing The means 40 are in close contact with the connection part 30 side.

In addition, as the pressing portion 410, the front end surface 413 of the pressing means 40 is in close contact with the bottom surface 34 of the connecting portion 30, the ground located between the bottom surface 34 and the front end surface 413 The cable 4 wires are crimped to amplify the fixing force of the ground cable 4.

In addition, since the pressing projection 37 and the pressing groove 414 is further formed on each of the bottom surface 34 and the front end surface 413, the fixing force of the ground cable 4 lines is further amplified.

On the other hand, when the close contact between the connecting portion 30 and the pressing means 40 is completed by maintaining the state in which the first and second serrations 39 and 422 are mutually engaged, as described above, If it does not work, even if the shock or vibration is not arbitrarily released, it can be stably maintained.

Of course, if you want to remove or replace the grounding cable (4) in the grounding means 10, in the reverse order as described above, if the pressing means 40 is rotated in the release direction more than a certain force in the first and second As the engagement state of the serrations 39 and 422 is released and subsequently released, it is easy to connect or replace the ground cable 4 in the grounding means 10.

On the other hand, when the grounding portion 20 is placed in an unspecified position of the work table 6 in a state in which the grounding cable 4 is fixed to the connection portion 30 of the grounding means 10, the grounding portion 20 As the ground holder 5 is attached by the magnetic force of the provided magnet 22, the ground holder 5 is kept fixed to the worktable 6.

In addition, even if the worker or the unspecified ground holder 5 is moved in a fixed state or moved by an impact or the like, it is easy to reassess by attachment by the magnetic force of the magnet 22 so as not to disturb the welding operation.

(Second Embodiment)

5 is an exploded perspective view of a grounding part according to a second embodiment of the present invention, and FIG. 6 is a cross-sectional view of the grounding part according to a second embodiment of the present invention. And a detailed description thereof will be omitted.

Grounding means (10a) of the second embodiment is composed of a connecting portion 30 and the grounding portion (200).

The grounding part 200 has a seating groove 204 having a predetermined depth into which the magnet 202 is inserted from the end to the inside thereof.

In addition, a sliding groove 201 having a predetermined depth and length is formed between the ground portion 200 and the connection portion 30 along the length direction.

The sliding groove 201 is configured with a restraining piece 203 sliding along the longitudinal direction.

In addition, the restraining piece 203 is preferably configured to protrude more than the outer periphery of the sliding groove 201, which is the user to slide along the longitudinal direction of the sliding groove 201 through the protruding restraint piece 203.

One side of the sliding groove 201 is formed with a through hole 205 penetrating to the end of the ground portion 200.

One end is inserted into the through hole 205, and the fixing pin 206 is fixed to the restraining piece 203 and the magnet 202 is fixed to the other end thereof.

One end of the fixing pin 206 is formed with a spiral to facilitate the fixing piece 203, the other end is formed with an intermittent portion 207 is fixed to the magnet 202, the end is pointed shape The tip portion 208 is formed.

At this time, the tip portion 208 is preferably configured to protrude from the magnet 202 having a length longer than the thickness of the magnet 202.

Protruding direction of the tip portion 208 is preferably made to the ground portion 200 side to which the magnet 202 is pressed.

In this case, an insertion groove 209 into which the protruding tip portion 208 is inserted is formed in the ground portion 200.

On the other hand, the sliding groove 201 is further provided with an elastic member 210 for providing an elastic force to the fixing pin 206.

The elastic member 210 has a fixing pin 206 inserted therein, and is provided between the restraining piece 203 and the sliding groove 201, and the magnet 202 fixed to the intermittent portion 207 of the fixing pin 206. ) Always remains seated in the seating groove 204.

The elastic member 210 is preferably a compression spring, but is not limited thereto, and any means may be used as long as the elastic member 210 provides an elastic force to the fixing pin 206.

7 is a cross-sectional view illustrating a state of use of the grounding unit according to the second embodiment of the present invention. Referring to this, the use state of the grounding unit of the second embodiment is as follows.

Referring to FIG. 6, when the grounding means 10a including the connection portion 30 to which the grounding cable 4 is connected is grounded on the work table 6, the magnetic force of the magnet 202 configured in the grounding portion 200 is increased. As attached, grounding is achieved.

Referring to FIG. 7, the magnet 202 of the grounding part 200 of the second embodiment is fixed to the fixing pin 206 and the end thereof is restrained by the restraining piece 203. Is pushed along the longitudinal direction of the sliding groove 201, the magnet 202 is separated from the seating groove 204 of the ground portion 200 protrudes.

In addition, a space is formed between the magnet 202 and the grounding part 200 by the protrusion of the magnet 202, and the grounding means 10a is completed as the work table 6 is inserted into the space.

In addition, the tip portion 208 is provided at some ends of the fixing pin 206, thereby amplifying the fixing force fixed while pressing the worktable (6).

In particular, the tip portion 208 of the fixing pin 206 has a sharp end, so that it is easy to remove foreign substances or paint, etc. buried on the worktable 6 to be grounded, so that the grounding can be maintained in any environment. It is to maximize the limitations of use.

(Third Embodiment)

8 is a cross-sectional view of a grounding unit according to a third exemplary embodiment of the present invention. Referring to this, the same reference numerals are used for the same components as those of the first and second exemplary embodiments, and a detailed description thereof will be omitted.

Grounding means (10b) is composed of a connecting portion 30 at one end and the grounding portion 220 at the other end.

In addition, a magnet 222 is provided at the ground portion 220.

The magnet 222 is configured to protrude to the end of the ground portion 220.

That is, the magnets 22 and 202 in the first and second embodiments have been inserted into the seating grooves 24 and 204 formed in the ground portions 20 and 200, but in the third embodiment, It does not constitute a separate seating groove.

Such a feature is that in the second embodiment, the restraint piece is formed to protrude to a certain height so as to protrude by detaching the magnet from the ground portion, but in the third embodiment, it works by pulling the magnet that protrudes to the outside regardless of the restraint piece. It has an effect.

Of course, the present invention is not limited thereto, and the configuration in which the magnet protrudes at the end of the grounding part is equally applicable to the first embodiment.

(Fourth Embodiment)

9 is a cross-sectional view of a connecting unit according to a fourth exemplary embodiment of the present invention, and the same reference numerals will be used for the same components as those of the first to third exemplary embodiments, and detailed description thereof will be omitted.

The branching projection 36a of the connecting portion 30a is preferably formed of a smooth streamline 35 while spreading widely from the protruding end point to the bottom surface 34.

This induces the ground cable 4 to spread smoothly along the streamline 35 as the ground cable 4 spreads widely on the bottom surface 34 through the branching projection 36a, and then pressurizes the front end surface 413 of the pressing means 40. This is to make it work smoothly.

In addition, although not shown, the pressing protrusion 37 or the pressing groove may be further formed between the bottom surface 34 and the branching protrusion 36a of the accommodation space 32.

(Fifth Embodiment)

10 is a cross-sectional view of the pressurizing means according to the fifth embodiment of the present invention. Referring to this, the same reference numerals are used for the same components as those of the first to fourth embodiments, and a detailed description thereof will be omitted.

The pressurizing means 40a forms the pressurizing part 410 and the holding part 420 integrally.

That is, the pressurizing means 40a is a means for stably connecting the ground cable 4 to the connection portion 30 of the ground holder 5 and preventing the ground cable 4 from being easily pulled out. In addition to processability and formability, it is preferable that the material cost is made of a synthetic resin having low cost and excellent strength.

What has been described above is just one embodiment for carrying out the structure of the structure of the grounding holder for welders according to the present invention, the present invention is not limited to the above-described embodiment, in the claims below Without departing from the gist of the present invention, any person of ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

1 is a block diagram of a welding machine configured with a ground holder according to a first embodiment of the present invention.

Figure 2 is an exploded cross-sectional perspective view of the ground holder according to the first embodiment of the present invention.

3 is a cross-sectional view before coupling of the ground holder according to the first embodiment of the present invention.

Figure 4 is a cross-sectional view of the coupling state of the ground holder according to the first embodiment of the present invention.

5 is an exploded perspective view of a grounding part according to a second exemplary embodiment of the present invention.

6 is a cross-sectional view of the grounding portion according to the second embodiment of the present invention.

7 is a cross-sectional view of the grounding unit according to the second embodiment of the present invention.

8 is a cross-sectional view of the grounding unit according to the third embodiment of the present invention.

9 is a cross-sectional view of a connecting unit according to a fourth embodiment of the present invention.

10 is a cross-sectional view of the pressing means according to the fifth embodiment of the present invention.

Description of the Related Art [0002]

4: grounding cable 5: grounding holder

10, 10a, 10b: ground portion 20, 200, 220: ground portion

22, 202, 222: magnet 24, 204: seating groove

201: sliding groove 203: restraint piece

205: through hole 206: fixing pin

207: control part 208: tip part

209: insertion groove 210: elastic member

30, 30a: connection portion 32: accommodation space

34: Bottom 36: Branch protrusion

37: Pressing protrusion 39: First serration

40, 40a: pressing means 410: pressing portion

412: insertion hole 414: crimp groove

416: branch hole 419: expansion pipe

420: gripper 422: second serration

Claims (7)

In the grounding holder provided at the end of the grounding cable so that the grounding cable drawn from the welding machine is fixed to the workbench, the grounding holder is An accommodating space having a predetermined depth is formed in the inner side of the accommodating direction of the ground cable, and an end surface of the accommodating space protrudes a predetermined height in the center to branch the lines of the grounding cable to enter the end end of the accommodating space. A grounding means comprising a grounding portion provided with a connecting portion formed with a branching protrusion to be distributed in the grounding portion and extending from the connecting portion and provided with a magnet on one side thereof to enable grounding by magnetic force at any position of the work table; And A pressurizing means having a male threaded portion formed at an outer periphery of the connecting portion to be fastened to the female threaded hole, and a pressing portion having an insertion hole formed therein for inserting a grounding cable in the center thereof, the gripping portion configured to easily grip the pressurized portion; The structure of the grounding holder for easy welding of the cable, characterized in that it comprises a. The grounding unit of the grounding means according to claim 1 A sliding groove having a predetermined depth and length on either side; A through hole penetrating from the sliding groove to the end; A restraining piece provided to slide along a longitudinal direction of the sliding groove; A fixing pin having one end inserted into the through hole fixed to the restraining piece and an interrupting part for fixing a magnet provided at the ground part to the other end and having a tip portion protruding from the magnet at its end; And An elastic member for elastically supporting the fixing pin; Easy to connect the cable, characterized in that the structure of the grounding holder for the welder. The method according to claim 1 or 2, A crimping protrusion protruding to a certain height is formed on any one of a bottom surface of the connection portion and a front end surface of the pressing portion of the grounding means; The other one of the pressing groove of the shape corresponding to the pressing projection; The structure of the grounding holder for easy welding, characterized in that the cable further comprises a. The method of claim 1, wherein the pressing means The pressing portion and the gripping portion are integral; The structure of the grounding holder for easy welding of the cable, characterized in that formed in. The method according to claim 1 or 4, The insertion hole of the pressing portion has a branch hole having a shape corresponding to the branch projection of the connecting portion to provide a wide contact area to the lines of the ground cable to amplify the fixing force when the pressing means is fastened to the connecting portion; The structure of the grounding holder for easy welding, characterized in that the cable further comprises a. The method according to any one of claims 1 to 5, First and second serrations on one surface of the connection part and the pressing means which are prevented from being mutually released by any shock or vibration of a predetermined force or less; The structure of the grounding holder for easy welding, characterized in that the cable further comprises a. The method of claim 6, Any one or both sides of the connecting portion and the pressing means provided with the first and second serrations are elastic grooves having a predetermined depth so that the first and second serrations are elastically supported to maximize the close contact force when tightening each other; The structure of the grounding holder for easy welding, characterized in that the cable further comprises a.

Images