JP2018094581A - Electrode storing device for spot welding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrode storing device for spot welding which enables simplification of electrode storing work conducted by an operator to reduce the time for the storing work.SOLUTION: An electrode storing device for spot welding includes a storage case 4 having a storage passage R1 in which an electrode take-out port R2 opens at one end. A pressing unit 5 presses an electrode 10 stored in the storage passage R1 to one end side of the storage passage R1. The pressing unit 5 includes: a slider 51 having a projection 51b; and a pressing coil spring 55 which biases the slider 51 in an advance direction. The storage case 4 is formed with a guide hole 41b which may guide the projection 51b of the slider 51. In a retreat side end part of the slider 51 in the guide hole 41b, an engagement recessed part 41c with which the projection 51b may engage is formed so as to be recessed in a direction intersecting with a direction along the guide hole 41b.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a spot welding electrode storage device for storing, for example, a spot welding electrode used in an automobile production line in a state where it can be mounted on a shank of a welding gun.

  Conventionally, in an automobile production line, a body frame is assembled by connecting a plurality of press-formed products by spot welding, and this spot welding is generally performed by a welding gun attached to the arm tip of an industrial robot. .

  By the way, the electrode is attached to the shank of the welding gun by fitting the tip of the shank into the fitting recess of the electrode. And since an electrode is consumed by repeatedly performing spot welding, it is necessary to replace | exchange regularly. Therefore, in order to efficiently mount the electrode on the shank of the welding gun when replacing the electrode, for example, a spot welding electrode storage device as disclosed in Patent Document 1 is installed in an automobile production line.

  The electrode storage device includes a rectangular tube-shaped storage case having a storage passage therein, and the electrode is linear in a direction perpendicular to the central axis of the storage passage, and the fitting recess is directed in the same direction. It can be accommodated in a state in which a plurality of such postures are arranged side by side. An electrode outlet is formed on one end side of the housing passage so as to correspond to the fitting recess of the electrode housed in the housing passage. A pair of slit-shaped guide holes extending along the accommodation passage are formed on each side wall of the accommodation case so as to face each other. The accommodating passage contains a pressing member that can advance and retreat along the accommodating passage, and the middle of each side surface of the pressing member is in a direction perpendicular to the direction along the accommodating passage and in a direction away from each other. Two pairs of protruding protrusions are provided. Each projection is inserted into each guide hole, and each guide hole guides each projection when the pressing member advances and retracts in the accommodation passage. The pressing member is urged to one end side of the accommodating passage by a spiral plate spring, and presses one or a plurality of electrodes arranged in parallel in the accommodating passage to one end side of the accommodating passage. Yes. Then, when the tip of the shank is fitted into the fitting recess of the electrode corresponding to the electrode outlet of the receiving passage and the electrode is taken out from the electrode outlet, each electrode received in the receiving passage is urged by the urging force of the spiral leaf spring. The electrode that moves to one end side of the housing passage and is adjacent to the extracted electrode corresponds to the electrode outlet.

Patent No. 4450376

  By the way, in the electrode storage device of Patent Document 1, the pressing member is always urged to one side of the accommodating passage by the urging force of the spiral leaf spring. Therefore, when the electrode is accommodated in the accommodating passage, the operator retracts the pressing member with one hand against the urging force of the spiral spring and maintains the state while accommodating the electrode in the accommodating passage with the other hand. There is a problem in that workability is poor and a lot of time is spent in the work of housing the electrodes.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an electrode storage device for spot welding that can simplify the operation of accommodating an electrode by an operator and reduce the time required for the operation. It is to provide.

  In order to achieve the above object, the present invention is characterized in that the pressing member can be temporarily prevented from advancing using the biasing force of the spring member that biases the pressing member.

  Specifically, the following solution was taken for a spot welding electrode storage device capable of storing a plurality of spot welding electrodes.

  That is, in the first invention, a plurality of the electrodes are arranged side by side so that the fitting recesses that are fitted linearly in a direction perpendicular to the central axis and fitted to the tip of the shank of the welding gun are oriented in the same direction. A linear accommodation case having an accommodation passage that can be accommodated in a state in which the electrode outlet is open at one end of the accommodation passage, and one or a plurality of juxtaposed states accommodated in the accommodation passage A pressing means for pressing the electrode toward one end of the housing passage, the pressing means being arranged to be able to advance and retreat in the housing passage and projecting in a direction perpendicular to the direction along the housing passage. And a spring member that urges the slider in the forward direction, and a guide hole that extends along the forward and backward direction of the slider and that can guide the protrusion is formed on the side surface of the housing case. Above the guide hole At the end of the backward side of the slider, characterized in that the projections engaging capable concave latching portions are formed so as to be recessed in a direction intersecting the direction along the guide hole.

  According to a second invention, in the first invention, the housing case includes a case body having a groove groove extending in a longitudinal direction of the housing case, and an attachment / detachment to the case body so as to cover the groove groove. And the housing passage is configured by a space formed between the cover body and the groove groove, and the latching recess is formed to be recessed toward the opening side of the groove groove. And when the said protrusion is latched by the said latching recessed part, the said slider is comprised so that it may protrude from the opening part of the said grooved groove.

  According to a third invention, in the first or second invention, the pressing means includes a telescopic rod having a telescopic mechanism whose tip is fixed to the slider and expands and contracts along the accommodating passage by an advance / retreat operation of the slider. The spring member is a coil spring wound around the telescopic rod.

  According to a fourth invention, in the third invention, the pressing means includes a cylindrical cover having a hollow portion that opens on the housing case side, and an opening periphery fixed to the other longitudinal end of the housing case. The telescopic rod and the coil spring are disposed in the hollow portion.

  In the first invention, when the operator moves the slider back so that the slider moves against the urging force of the spring member and moves the slider so that the protrusion of the slider enters the latching recess, It is latched by the latching recessed part with the spring force of a spring member. Then, the operator can perform the operation of accommodating each electrode in the accommodating passage with both hands, and the operator can easily accommodate the electrode, thereby shortening the time required for the accommodating operation.

  In the second invention, in a state where the cover body is removed from the case body and the slider is retracted, each electrode is inserted into the groove groove along the groove groove, and then the cover body is attached to the case body. When attached, the electrodes are housed in the housing passage in the housing case in a juxtaposed state. Therefore, it is possible to easily perform the accommodating operation of the electrodes in the accommodating passages in the accommodating case. In addition, when the cover body is attached to the case body after each electrode is accommodated in the groove groove, the protrusion of the slider protrudes from the opening of the groove groove so that the protrusion is detached from the latching recess. The spring force of the spring member is applied to the electrode accommodated in the accommodation passage. Therefore, it is not necessary to separately perform the operation of attaching the cover body to the case body and the operation of removing the protrusion from the latching recess, and the operation of accommodating each electrode in the accommodation passage by the operator is further simplified.

  In the third invention, when the slider advances and retracts in the accommodation passage, the coil spring that presses the slider is expanded and contracted while being guided by the extendable rod. Therefore, when the apparatus is used repeatedly, a large force is applied to the middle part of the coil spring in a direction intersecting the expansion and contraction direction, and the coil spring is bent at the middle part, and a desired pressing force is applied to the electrode accommodated in the accommodation passage. It can be avoided that it disappears. Further, since the telescopic rod is a telescopic mechanism, it is compact in the longitudinal direction, and the entire apparatus can be made compact.

  In the fourth aspect of the invention, since the telescopic rod and the coil spring are surrounded by the cylinder cover, it is possible to reduce the failure of the apparatus due to dust and dirt adhering to the telescopic rod and the coil spring.

1 is a perspective view of an electrode storage device for spot welding according to an embodiment of the present invention. It is an II arrow directional view of FIG. It is sectional drawing in the III-III line of FIG. It is the IV section enlarged view of FIG. It is the V section enlarged view of FIG. FIG. 6 is a view corresponding to FIG. 5 illustrating a state in which the last electrode accommodated in the accommodation passage is taken out from the electrode outlet. It is sectional drawing in the VII-VII line of FIG. It is sectional drawing in the VIII-VIII line of FIG. FIG. 9 is a view corresponding to FIG. 8 illustrating a state in the middle of housing the electrode in the housing passage.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiment is merely exemplary in nature.

 1 and 2 show an electrode storage device 1 for spot welding according to an embodiment of the present invention. The electrode storage device 1 is arranged on the side of a vehicle body assembly passage in an automobile production line, and a plurality of electrode storage devices 1 can be mounted on a welding gun shank 11 (see FIG. 5) held by a welding robot. It is to be stored.

  The electrode storage device 1 includes a device main body 2 extending linearly, and the device main body 2 has a linear storage case 4 having a substantially rectangular tube shape.

  The housing case 4 includes a case main body 41 having a U-shaped cross section located on the back side of the housing case 4 and a substantially rectangular plate-like cover body 42 located on the front surface side of the housing case 4. As shown in FIG. 3, a protruding portion 41 a is formed on one end side of the main body 41 in the longitudinal direction.

  A concave groove 40 is formed in the case main body 41. The groove 40 has a substantially L shape in a plan view that opens in the front side of the housing case 4 and extends in the longitudinal direction of the housing case 4.

  The concave groove 40 has a first passage portion 40a extending linearly toward one end in the longitudinal direction of the housing case 4, and a direction intersecting the first passage portion 40a from the extending end of the first passage portion 40a. And a second passage portion 40b whose extension end is open to the overhanging surface of the overhang portion 41a.

  As shown in FIG. 3, a sharp projecting portion 40e having a substantially triangular shape in plan view is provided at a position on the inner surface of the first passage portion 40a facing the projecting portion 41a, and the sharp projecting portion 40e. Has a shape in which the thickness in the direction along the first passage portion 40a gradually decreases toward the tip.

  The other end side in the longitudinal direction of the housing case 4 at the sharp protrusion 40e is gently curved so as to be gradually located at the extension end side of the second passage portion 40b as it goes to the extension end side of the first passage portion 40a. A curved guide surface 40f is formed.

  A pair of slit-shaped guide holes 41b extending along the first passage portion 40a are formed on each side wall of the case body 41 so as to face each other, and the other longitudinal end of the housing case 4 in each guide hole 41b. At the end portion on the side, a latching recess 41c is formed so as to be recessed in the opening side of the concave groove 40 (direction intersecting the direction along the guide hole 41b).

  Further, as shown in FIG. 7, the bottom surface of the groove groove 40 is separated from the strip-shaped flat bottom surface 40c extending along the extending direction of the groove groove 40 and both edges of the flat bottom surface 40c. The two inclined surfaces 40d are formed at the base end of the electrode 10 when the electrode 10 is accommodated in the groove 40 from the distal end side (see the solid line electrode 10 in FIG. 7). Is in contact with the distal end surface of the electrode 10 so as not to jump out of the groove 40, while the electrode 10 is accommodated in the groove 40 from the base end side thereof (see the two-dot chain electrode 10 in FIG. 7). The distal end surface of the electrode 10 comes into contact with the proximal end of the electrode 10 so that it protrudes from the groove 40.

  As shown in FIG. 2, a pair of guide grooves 41d extending along the second passage portion 40b are formed on the bottom surface of the case body 41 at a predetermined interval in the direction along the first passage portion 40a. .

  The cover body 42 has a U-shaped cross section, and a first notch recess 42a that opens to the side is formed on one end in the longitudinal direction.

  In addition, a pair of second cutout recesses 42b that open downward are formed at each side edge on the other end side in the longitudinal direction of the cover body 42 so as to be spaced apart in a direction perpendicular to the longitudinal direction of the cover body 42. ing.

  Further, a positioning recess 42 c is formed on the surface of the cover body 42 near one end in the longitudinal direction.

  The cover body 42 is attachable / detachable to / from the case body 41 so as to cover the opening of the groove 40, and the cover body 42 is attached to the case body 41 as shown in FIG. A space formed between the cover body 42 and the concave groove 40 constitutes the accommodating passage R1 of the present invention.

  Further, the first cutout recess 42a corresponds to the extending end side of the second passage portion 40b in a state where the cover body 42 is attached to the case body 41, and as shown in FIG. The portion of the second passage portion 40b that opens to the overhanging surface of the overhanging portion 41a and the first cutout concave portion 42a constitute the electrode outlet R2 of the present invention.

  Furthermore, as shown in FIG. 2, the second notch recess 42b corresponds to the latching recess 41c of each guide hole 41b in a state where the cover body 42 is attached to the case body 41.

  In the accommodating passage R1, the fitting recess 10a (see FIG. 7) for fitting the electrode 10 linearly in a direction perpendicular to the central axis thereof and fitting to the tip of the shank 11 is oriented in the same direction. Thus, it can be accommodated in a state of being arranged in parallel.

  As shown in FIGS. 3 and 4, a pressing unit 5 (pressing means) is provided on the other longitudinal end side of the housing case 4.

  The pressing unit 5 includes a block-shaped slider 51 disposed in the accommodation passage R1, and the slider 51 can advance and retreat along the first passage portion 40a.

  As shown in FIGS. 8 and 9, a slit 51 a extending in a direction perpendicular to the first passage portion 40 a is formed in the front portion of the slider 51.

  In front of the slider 51, a pressing member 52 having a substantially T shape in a side view is provided.

  The pressing member 52 includes a bell-shaped portion 52a having a shape similar to that of the electrode 10, and an extending portion 52b extending from a midway portion of the bell-shaped portion 52a toward the slit 51a of the slider 51. The protruding portion 52b is pivotally supported by a bolt B1 at the front portion of the slider 51 so that the pressing member 52 can rotate in the direction along the second passage portion 40b.

  As shown in FIG. 3, a flat surface 52c is formed on the outer peripheral surface of the bell-shaped portion 52a on the opposite side of the extended portion 52b so as to face the electrode outlet R2.

  A pair of projections 51b projecting in a direction perpendicular to the first passage portion 40a and in a direction away from each other are provided in the middle of each side surface of the slider 51.

  Each projection 51b is inserted into each guide hole 41b, and each guide hole 41b guides each projection 51b when the slider 51 advances and retreats.

  Further, when the slider 51 is moved backward toward the opening side of the groove 40 and the projections 51b are latched on the latching recesses 41c, the slider 51, as shown in FIG. It jumps out from the opening of the groove 40.

  As shown in FIGS. 3 and 4, the pressing unit 5 includes a cylindrical cover 53 having a bottomed cylindrical shape, and an opening peripheral edge of the cylindrical cover 53 is fixed to the other longitudinal end of the housing case 4. .

  A hollow portion 53a that opens to the housing case 4 side is formed inside the cylindrical cover 53, and a telescopic rod 54 made of a telescopic mechanism is disposed in the hollow portion 53a.

  The distal end of the telescopic rod 54 is fixed to the central portion of the rear end surface of the slider 51, and when the slider 51 advances and retreats, the telescopic rod 54 expands and contracts along the first passage portion 40a.

  Further, a pressing coil spring 55 (spring member) is disposed in the hollow portion 53 a of the tube cover 53, and the pressing coil spring 55 is wound around the telescopic rod 54.

  One end of the pressing coil spring 55 is in contact with the rear end of the slider 51, and the other end is in contact with the bottom surface of the cylindrical cover 53 to urge the slider 51 in the forward direction.

  That is, the pressing unit 5 is configured to press one or a plurality of electrodes 10 in a state of being accommodated in the accommodation passage R1 toward one end side of the accommodation passage R1.

  An extraction regulating member 6 having a shape extending from the extending end of the first passage portion 40a to the electrode outlet R2 is disposed on one end side of the housing passage R1.

  The surface on the other end side in the longitudinal direction of the storage case 4 in the take-out restricting member 6 is continuous with the curved guide surface 40f and constitutes a part of the inner side surface forming the second passage portion 40b.

  A claw portion 6a that protrudes to the other end in the longitudinal direction of the housing case 4 is provided at the extending end of the take-out restricting member 6, and the claw portion 6a extends in the direction along the second passage portion 40b toward the tip. The thickness of the is gradually reduced.

  On the other hand, on the opposite side of the claw portion 6a in the take-out restricting member 6, a spring recess 6b is formed.

  As shown in FIGS. 5 and 6, the base end side of the take-out restricting member 6 is pivotally supported by the housing case 4 so that the take-out restricting member 6 can rotate in the direction along the first passage portion 40 a. In addition, the extraction restricting member 6 is configured such that the claw portion 6a is moved by the rotation operation to the protruding side (one side) of the claw portion 6a and the rotation operation to the opposite side (the other side) of the claw portion 6a. The state is switched between a state where a part of the outlet R2 is blocked and a state where the electrode outlet R2 is opened.

  That is, the extraction restricting member 6 blocks part of the electrode outlet R2 while moving to one side and restricts extraction of the electrode 10 from the electrode outlet R2, while moving to the other side, the electrode outlet R2 And the electrode 10 can be taken out from the electrode outlet R2.

  The spring recess 6b accommodates a regulation coil spring 7 (first coil spring), and the regulation coil spring 7 has the extension end side of the take-out regulation member 6 moved to the protruding side (one side) of the claw portion 6a. It is energized to do.

  As shown in FIG. 1, the apparatus main body 2 is attached to one side surface of a chip dresser 3 (attachment body) via a bracket 8 having a U-shaped cross section.

  The bracket 8 includes a fixed plate portion 81 fixed to the chip dresser 3, an upper plate portion 82 extending in parallel with each other from an upper edge portion and a lower edge portion of the fixed plate portion 81 so as to be separated from the chip dresser 3, and And a lower plate portion 83.

  A portion surrounded by the fixed plate portion 81, the upper plate portion 82, and the lower plate portion 83 constitutes the mounting recess 8a of the present invention, and the housing case 4 can be attached to the mounting recess 8a.

  An index plunger 9 is attached to the center of the upper plate portion 82.

  Further, the surface of the lower plate portion 83 facing the upper plate portion 82 constitutes the guide surface 83a of the present invention, and the guide surface 83a has the guide grooves 41d as shown in FIG. A pair of protrusions 83b that can be fitted to each other is formed.

  When the index plunger 9 is pulled up, the guide grooves 41d are made to correspond to the protrusions 83b, and the housing case 4 is moved along the guide surface 83a, so that the protrusions 83b are fitted into the guide grooves 41d. It comes to match. The pin 9a of the index plunger 9 is fitted into the positioning recess 42c of the cover body 42 so that the housing case 4 is attached to the mounting recess 8a. Therefore, the mounting operation of the housing case 4 with respect to the bracket 8 is simple, and the position of the housing case 4 with respect to the bracket 8 can be accurately determined.

  In addition, if the width dimension of each guide groove 41d is set to be different, an error in the mounting direction of the housing case 4 with respect to the mounting recess 8a can be eliminated.

  Next, the operation of taking out the electrode 10 from the electrode storage device 1 will be described in detail.

  First, the welding gun gripped by the welding robot is moved so that the tip of the shank 11 of the welding gun corresponds to the first notch recess 42 a of the cover body 42.

  Next, the shank 11 of the welding gun is moved toward the first notch recess 42a. Then, as shown in FIG. 5, the tip of the shank 11 is fitted into the fitting concave portion 10 a of the electrode 10 that contacts the claw portion 6 a of the removal regulating member 6.

  Thereafter, the welding gun is moved so that the electrode 10 attached to the tip of the shank 11 moves to the extending end side of the second passage portion 40b. Then, the take-out restricting member 6 rotates against the urging force of the restricting coil spring 7 to the opposite side to the protruding direction of the claw portion 6a to open the electrode take-out port R2, and the electrode 10 is taken out from the electrode take-out port R2. .

  Thereafter, when the electrode 10 mounted on the shank 11 passes through the electrode outlet R2, the extraction regulating member 6 is rotated in the protruding direction of the claw portion 6a by the biasing force of the regulating coil spring 7, and a part of the electrode outlet R2 Block.

  Then, the plurality of electrodes 10 arranged in parallel in the housing passage R1 move to one end side of the housing passage R1 by the spring force of the pressing unit 5, and the electrode 10 adjacent to the electrode 10 taken out from the electrode outlet R2 is controlled to take out. The nail | claw part 6a of the member 6 is contacted, and the next electrode 10 can be taken out.

  When the extraction of each electrode 10 accommodated in the accommodation passage R1 from the electrode outlet R2 is repeated, the number of electrodes 10 accommodated in the accommodation passage R1 becomes one as shown in FIG. At this time, the slider 51 is pressed by the pressing coil spring 55 to reach the vicinity of the extending end of the first passage portion 40a. However, the pressing member 52 is guided by the curved guide surface 40f to the slider 51. To turn into the second passage portion 40b. Therefore, the electrode 10 positioned in the second passage portion 40b can be reliably moved to the electrode outlet R2.

  Next, the accommodation operation of the electrode 10 in the accommodation passage R1 of the accommodation case 4 will be described in detail.

  First, after removing the cover body 42 from the case body 41, the operator grasps both protrusions 51 b of the slider 51 and moves the slider 51 backward against the urging force of the pressing coil spring 55.

  When both the protrusions 51b reach the end portions of the guide holes 41b on the retreating side of the slider 51, the operator moves the slider 51 to the opening side of the groove 40. Then, as shown in FIG. 9, each protrusion 51 b enters each latching recess 41 c and the slider 51 jumps out of the opening of the groove 40.

  Thereafter, the operator releases his hands from both protrusions 51b. Then, both the protrusions 51b are latched by both latching recessed parts 41c with the spring force of the coil spring 55 for a press. Therefore, the operator can perform the operation of accommodating each electrode 10 in the concave groove 40 with both hands, and the operation of accommodating each electrode 10 by the operator can be simplified and the time required for the accommodation operation can be reduced. .

  After accommodating the plurality of electrodes 10 in the concave groove 40, the operator attaches the cover body 42 to the case main body 41. Then, as shown in FIG. 8, the portion of the slider 51 that protrudes from the opening of the groove 40 contacts the cover body 42, so that the protrusion 51b is detached from the latching recess 41c, and the spring force of the pressing coil spring 55 is increased. It comes to be added to the electrode 10 accommodated in the accommodation passage R1. Therefore, there is no need to separately perform the operation of attaching the cover body 42 to the case body 41 and the operation of removing the protrusion 51b from the latching recess 41c, and the operation of accommodating each electrode 10 in the accommodation passage R1 by the operator is further simplified. Become.

  When the cover body 42 is removed from the case body 41 and the slider 51 is retracted, each electrode 10 is inserted into the groove 40 and then the cover body 42 is attached to the case body 41. The electrodes 10 are accommodated in the accommodating passage R1 in a juxtaposed state. Accordingly, it is possible to easily perform the accommodating operation of the respective electrodes 10 in the accommodating passage R1 in the accommodating case 4.

  Further, when the slider 51 advances and retreats in the accommodating passage R <b> 1, the pressing coil spring 55 that presses the slider 51 is expanded and contracted while being guided by the extendable rod 54. Therefore, when the electrode storage device 1 is repeatedly used, a large force is applied to the middle portion of the pressing coil spring 55 in the direction intersecting the expansion / contraction direction, and the pressing coil spring 55 is bent at the middle portion, and is accommodated in the accommodation passage R1. It can be avoided that a desired pressing force is not applied to the formed electrode 10. Further, since the telescopic rod 54 is a telescopic mechanism, it is compact in the longitudinal direction, and the entire electrode storage device 1 can be made compact.

  In addition, since the telescopic rod 54 and the pressing coil spring 55 are surrounded by the cylinder cover 53, it is possible to reduce the failure of the electrode storage device 1 due to dust, dust, etc. adhering to the telescopic rod 54 and the pressing coil spring 55.

  In the embodiment of the present invention, when the take-out restricting member 6 is rotated in the protruding direction of the claw portion 6a, the claw portion 6a is configured to block a part of the electrode outlet R2. The structure which interrupts | blocks the whole area | region of exit R2 may be sufficient.

  Further, in the embodiment of the present invention, the inclined surface 40d is formed so as not to make a mistake in how the electrode 10 is accommodated in the concave groove 40, but the electrode 10 is accommodated in the concave groove 40 from the base end side. In some cases, a curved surface may be formed on the bottom surface of the groove 40 instead of the inclined surface 40d if the tip surface of the electrode 10 protrudes from the opening of the groove 40.

  Further, in the embodiment of the present invention, each guide groove 41d is formed in the case body 41, and each protrusion 83b that fits in each guide groove 41d is formed in the bracket 8. The guide groove 41 d may be formed in the bracket 8, and each protrusion 83 b that fits in each guide groove 41 d may be formed in the case body 41.

  The present invention is suitable for, for example, a spot welding electrode storage device that stores a spot welding electrode used in an automobile production line in a state where it can be mounted on a shank of a welding gun.

DESCRIPTION OF SYMBOLS 1 Electrode storage apparatus for spot welding 4 Storage case 5 Press unit (press means)
DESCRIPTION OF SYMBOLS 10 Electrode 10a Fitting recessed part 11 Shank 40 Groove groove 41 Case main body 41b Guide hole 41c Latching recessed part 42 Cover body 51 Slider 51b Protrusion 53 Cylindrical cover 53a Hollow part 54 Telescopic rod 55 Pressing coil spring (spring member)
R1 containment passage

Claims (4)

An electrode storage device for spot welding capable of storing a plurality of electrodes for spot welding,
A storage passage that can be accommodated in a state in which a plurality of the above-mentioned electrodes are arranged in a straight line in a direction perpendicular to the central axis thereof, and a plurality of fitting recesses that are fitted to the tip of the shank of the welding gun are oriented in the same direction. A linear accommodation case having an electrode outlet opening at one end of the accommodation passage;
A pressing means that presses one of the electrodes housed in the housing passage or a plurality of electrodes arranged in parallel to one end of the housing passage;
The pressing means includes a slider that is disposed in the housing passage so as to be capable of moving forward and backward, and has a protrusion that projects in a direction perpendicular to the direction along the housing passage, and a spring member that biases the slider in the forward direction. And
A guide hole is formed on a side surface of the housing case so as to extend along the advancing / retreating direction of the slider and guide the protrusion.
Spot welding, characterized in that a latching recess capable of latching the protrusion is formed at the end of the guide hole on the retracting side of the slider so as to be recessed in a direction intersecting the direction along the guide hole. Electrode storage device. The electrode storage device for spot welding according to claim 1,
The housing case includes a case body having a groove extending in the longitudinal direction of the housing case, and a cover body attachable to and removable from the case body so as to cover the groove.
The housing passage is configured by a space formed between the cover body and the groove.
The latching recess is formed so as to be recessed toward the opening side of the groove, and the slider is configured to jump out from the opening of the groove when the projection is latched on the latching recess. An electrode storage device for spot welding, characterized by comprising: The electrode storage device for spot welding according to claim 1 or 2,
The pressing means includes a telescopic rod composed of a telescopic mechanism whose tip is fixed to the slider and expands and contracts along the accommodating passage by an advance and retreat operation of the slider.
The electrode storage device for spot welding, wherein the spring member is a coil spring wound around the telescopic rod. In the electrode storage device for spot welding according to claim 3,
The pressing means includes a cylindrical cover that has a hollow portion that opens to the housing case side, and an opening periphery is fixed to the other longitudinal end of the housing case.
An electrode storage device for spot welding, wherein the telescopic rod and the coil spring are disposed in the hollow portion.

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