WO2018110020A1 - スポット溶接用電極格納装置 - Google Patents
スポット溶接用電極格納装置 Download PDFInfo
- Publication number
- WO2018110020A1 WO2018110020A1 PCT/JP2017/034094 JP2017034094W WO2018110020A1 WO 2018110020 A1 WO2018110020 A1 WO 2018110020A1 JP 2017034094 W JP2017034094 W JP 2017034094W WO 2018110020 A1 WO2018110020 A1 WO 2018110020A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- passage
- spot welding
- storage device
- lever member
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/282—Electrode holders not supplying shielding means to the electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3072—Devices for exchanging or removing electrodes or electrode tips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
- B23K9/1336—Driving means
Definitions
- 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.
- 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. .
- the electrode is mounted on 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
- the electrode storage device includes a rectangular tube-shaped storage case having a storage passage therein, and the electrode is linearly formed in a direction perpendicular to the central axis of the storage passage and the fitting recess is opened in the same direction. Thus, it can be accommodated in a state in which a plurality are arranged in parallel.
- One end of the accommodation passage is formed with an electrode outlet for taking out the electrode from the accommodation passage, while the other end of the accommodation passage is provided with one or a plurality of electrodes accommodated in the accommodation passage.
- a pressing unit is provided on one end side of the housing passage by a spring force.
- a take-out restricting member that is movable in a direction orthogonal to the longitudinal direction of the housing case is disposed on one end side of the housing passage.
- the take-out restricting member blocks the electrode take-out port while being moved to one side by the biasing force of the coil spring and restricts the electrode from being taken out from the electrode take-out port, while resisting the biasing force of the coil spring.
- the electrode outlet is opened so that the electrode can be taken out from the electrode outlet.
- the electrode is taken out from the opened electrode outlet by moving to the other side against the urging force, and then the electrode adjacent to the taken-out electrode moves to one end side of the receiving passage by the spring force of the pressing unit. At the same time, the removal from the electrode outlet is restricted by contacting the take-out restricting member moved to one side by the biasing force of the coil spring.
- Patent Document 1 has no specific description regarding this.
- the present invention has been made in view of such a point, and an object of the present invention is to provide an electrode storage device for spot welding which is less likely to cause malfunction even when used repeatedly.
- the present invention is characterized in that a lever-shaped member is employed as a member for restricting the extraction of the electrode.
- the following solution was taken for a spot welding electrode storage device capable of storing a plurality of spot welding electrodes.
- a plurality of the electrodes are arranged side by side in a straight line in a direction perpendicular to the central axis thereof, and in such a manner that fitting recesses fitted to the shank tip of the welding gun open in the same direction.
- a housing case that has a housing passage that can be housed therein, an electrode outlet that communicates with the housing passage is formed at one end, and one or a plurality of electrodes that are housed in the housing passage.
- a pressing means that presses one end side of the housing passage, and is supported by the housing case so as to swing about a swing axis extending in the same direction as the central axis of the electrode housed in the housing passage.
- a lever member that can be changed to a first posture in which the tip end side blocks a part of the electrode outlet, and a second posture that swings in the other side and the tip side opens the electrode outlet,
- a first bias that biases the lever member to swing to one side Characterized in that it comprises a stage.
- the second invention is characterized in that, in the first invention, the lever member and the first urging means are disposed inside the housing case.
- the lever member is arranged such that a tip portion is positioned on the electrode outlet side of the housing passage and a swing axis side is located on the back side of the housing passage. It is characterized by being.
- the lever member is provided with a passage forming surface portion that extends along an extending direction of the accommodation passage and constitutes a part of an inner surface of the accommodation passage. It is characterized by.
- the fifth invention is characterized in that, in the fourth invention, a curved surface corresponding to the outer peripheral surface of the electrode is formed on the distal end side of the lever member in the passage forming surface portion.
- the housing passage includes a first passage portion that extends linearly toward one end in the longitudinal direction of the housing case, and the first passage portion.
- a second passage portion that extends in a direction intersecting with the first passage portion from the extension end and opens on the extension end side, and an opening portion at the extension end of the second passage portion serves as the electrode outlet. It is characterized by.
- the lever member is disposed on one end side of the accommodating passage, the swing shaft is located at the extending end of the first passage portion, and the second passage portion The shape extends from the swing shaft to the electrode outlet along the extending direction.
- the pressing means is disposed in the accommodating passage and can be moved forward and backward along the first passage portion, and the slider is attached in the forward direction.
- Second urging means for urging, and in front of the slider, the slider is rotatable about a rotation axis extending in the same direction as the central axis of the electrode accommodated in the accommodation passage.
- a pressing member supported on the shaft is provided.
- the structure such as a lever member that switches the electrode outlet between the closed state and the open state by the swinging operation is formed, for example, by processing the guide groove in the housing case or the withdrawal regulating member and taking out from the housing case.
- dust and dust are less likely to collect around the electrode outlet, which prevents malfunction of the device due to dust and dirt. It can be reduced as much as possible.
- the lever member and the first urging means are hardly visible from the outside of the housing case, so that the overall appearance of the device is improved and a highly designable device can be obtained. Further, since the lever member and the first urging means are located inside the housing case, even if another device or tool comes into contact with the apparatus, the lever member and the first urging means are not attached to the movable part. Prevents the lever member and the first urging means from moving when other devices and tools come into direct contact with the lever member and the first urging means before coming into contact with the housing case. be able to.
- the lever member swings against the biasing force of the first biasing means to open the electrode outlet. Therefore, the electrode can be smoothly taken out from the accommodation passage.
- the electrode adjacent to the taken-out electrode tries to jump out of the electrode take-out port by the pressing force of the pressing means, but the lever member is accommodated by the biasing force of the first biasing means. Since the electrode outlet is closed while swinging in the direction opposite to the moving direction of each electrode in the electrode, the electrode adjacent to the extracted electrode is surely stopped before the electrode outlet is about to jump out of the electrode outlet. be able to.
- the passage forming surface portion of the lever member smoothly guides each electrode to the electrode outlet side. Therefore, each electrode can be smoothly moved to the electrode outlet using the lever member without complicating the structure around the lever member, and a low-cost apparatus can be obtained.
- the outer peripheral surface of the electrode moved to the electrode outlet Is fitted to the curved surface of the lever member that is swung by the biasing force of the first biasing means. Therefore, it is possible to reliably stop the next electrode to be taken out from the electrode outlet at a predetermined position before the electrode outlet.
- the electrode outlet for taking out the electrode is not opened in the direction in which the pressing force of the pressing means is applied, after the electrode is taken out from the electrode outlet, the electrode adjacent to the extracted electrode is pushed by the pressing means. It does not move in the direction in which pressure is applied and jumps out of the electrode outlet, and the electrodes can be reliably taken out one by one from the electrode outlet.
- the pressing force of the pressing means can be made strong, even if the pressing force of the pressing means gradually decreases by repeated use, the pressing force sufficient to move the electrodes in parallel arrangement to the electrode outlet It is possible to select the pressing means having the above, and it is possible to reliably move the electrode to the electrode outlet.
- the seventh invention since the dimension of the lever member in the direction intersecting the longitudinal direction of the housing case is increased, the rigidity of the lever member is increased. Therefore, even when the lever member is repeatedly swung during the electrode taking-out operation, it is possible to make a device that is not easily deformed or damaged.
- the pressing member when the slider moves forward and reaches the vicinity of the extension end of the first passage portion, the pressing member is rotated with respect to the slider by the urging force of the second urging means and moved to the second passage portion. Get into. Therefore, the electrode located in the second passage portion can be reliably moved to the electrode outlet.
- FIG. 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.
- FIG. 3 is a cross-sectional view taken along line III-III in 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.
- FIG. 4 is a cross-sectional view taken along line VII-VII in FIG. 3. 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.
- FIG. 1 and FIG. 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 in a straight line, and the device main body 2 has a housing 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 cover body 42 having a substantially rectangular plate shape located on the front surface side of the housing case 4. As shown in FIG. 3, a protruding portion 41a is formed on one end side in the longitudinal direction.
- a concave groove 40 having an approximately L shape in a plan view is formed inside the case body 41 and opens in the front surface side of the housing case 4 and extends in the longitudinal direction of the housing case 4.
- the concave groove 40 includes 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.
- a second passage portion 40b that extends and has an extension end that opens to the extension surface of the extension portion 41a, and the extension end of the second passage portion 40b that opens to the extension surface of the extension portion 41a.
- An electrode outlet R2 is configured.
- a substantially triangular sharp projecting portion 40 e that protrudes toward the electrode outlet R ⁇ b> 2 side is provided on a portion of the inner surface of the first passage portion 40 a that is continuous with the second passage portion 40 b.
- 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 gradually curved so as to be gradually positioned on the extension end side of the second passage portion 40b toward 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 the side walls of the case body 41 so as to face each other, and the ends of the guide cases 41b on the other end side in the longitudinal direction of the housing case 4 are formed.
- a hooking recess 41c is formed in the part so as to be recessed toward the opening side of the groove 40.
- the bottom surface of the groove groove 40 is separated from the strip-shaped flat bottom surface 40 c extending along the extending direction of the groove groove 40 and both edges of the flat bottom surface 40 c.
- the two inclined surfaces 40d are formed so that the base end of the electrode 10 is formed when the electrode 10 is accommodated in the groove 40 from the distal end side (see the solid line electrode 10 in FIG. 7). While contacting the distal end surface of the electrode 10 so as not to jump out of the groove 40, when the electrode 10 is accommodated in the groove 40 from the base end side (see the two-dot chain line 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.
- a pair of guide grooves 41d extending along the second passage portion 40b are formed on the bottom surface of the case body 41 with 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 cutout recess 42a that opens to the side is formed on one end in the longitudinal direction.
- a pair of second cutout recesses 42 b that open downward are formed in each side edge on the other end side in the longitudinal direction of the cover body 42 so as to be separated in a direction perpendicular to the longitudinal direction of the cover body 42.
- a positioning recess 42c is formed on the surface of the cover body 42 near one end in the longitudinal direction.
- cover body 42 can be attached to the case main body 41 so as to cover the opening portion of the concave groove 40, and as shown in FIG. 3, the cover body 42 attached to the case main body 41 and the concave groove
- the space formed with 40 constitutes the accommodation passage R1 of the present invention.
- first notch recess 42a corresponds to the extending end side of the second passage portion 40b in a state in which the cover body 42 is attached to the case main body 41. As shown in FIG. 42a continues to the electrode outlet R2.
- the second notch recess 42b corresponds to the latching recess 41c of each guide hole 41b with the cover body 42 attached to the case body 41.
- the fitting recess 10a (see FIG. 7) that fits the electrode 10 linearly in a direction perpendicular to the central axis and the tip of the shank 11 opens in the same direction. It can be accommodated in a state in which a plurality are arranged.
- a pressing unit 5 (pressing means) is provided on the other end side in the longitudinal direction of the housing case 4.
- the pressing unit 5 includes a block-shaped slider 51 disposed in the accommodating passage R1, and the slider 51 can advance and retreat along the first passage portion 40a.
- a slit 51 a extending in a direction orthogonal to the first passage portion 40 a is formed in the front portion of the slider 51.
- a pressing member 52 having a substantially T shape in 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 on the front portion of the slider 51 so that the pressing member 52 can rotate in the direction along the second passage portion 40b.
- the pressing member 52 is pivotally supported by the slider 51 so as to be rotatable around a rotation axis C2 extending in the same direction as the central axis of the electrode 10 in the accommodation state in the accommodation passage R1.
- a flat surface 52c is formed on the outer peripheral surface of the bell-shaped portion 52a opposite to the extending portion 52b so as to face the electrode outlet R2 side.
- a pair of protrusions 51b are provided in the middle of each side surface of the slider 51 so as to protrude in a direction orthogonal to the first passage portion 40a and in a direction away from each other.
- 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.
- 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 cylinder cover 53, and a telescopic rod 54 made of a telescopic mechanism is disposed in the hollow portion 53a.
- the tip of the telescopic rod 54 is fixed to the central portion of the rear end surface of the slider 51.
- the telescopic rod 54 expands and contracts in the direction along the first passage portion 40a.
- a pressing coil spring 55 (second urging means) 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 cylinder cover 53 to urge the slider 51 in the forward direction.
- the pressing unit 5 is configured to press one or more electrodes 10 in a state of being accommodated in the accommodation passage R1 toward one end side of the accommodation passage R1.
- a lever member 6 having a shape extending from the extending end of the first passage portion 40a to the electrode outlet R2 along the extending direction of the second passage portion 40b is disposed on one end side of the housing passage R1.
- the lever member 6 is disposed inside the housing case 4.
- the lever member 6 has a distal end portion located on the electrode outlet R2 side of the accommodation passage R1 and a proximal end side located on the back side of the accommodation passage R1, and the proximal end side of the lever member 6 is shown in FIGS.
- the swing shaft 60 is swingably supported by the housing case 4, and the swing axis C ⁇ b> 1 of the swing shaft 60 is in the same direction as the central axis of the electrode 10 housed in the housing passage R ⁇ b> 1. It extends.
- a claw portion 6a is provided at the tip of the lever member 6 so as to protrude toward the other end in the longitudinal direction of the housing case 4.
- the claw portion 6a gradually decreases in thickness in the direction along the second passage portion 40b toward the tip. The shape is made.
- a spring recess 6b is formed on the lever member 6 on the opposite side of the claw 6a.
- a passage forming surface portion 6c extending along the extending direction of the second passage portion 40b (accommodating passage R1) is formed on the other end side in the longitudinal direction of the housing case 4 in the lever member 6.
- a curved surface 6d corresponding to the outer circumferential surface of the electrode 10 is formed on the distal end side of the lever member 6 in the passage forming surface portion 6c so as to be continuous with the distal end portion of the claw portion 6a.
- the base end side of the lever member 6 in the passage forming surface portion 6c is flush with the curved guide surface 40f, and the passage forming surface portion 6c constitutes a part of the inner side surface forming the second passage portion 40b. ing.
- the lever member 6 has an electrode outlet through a swinging operation toward the protruding side (one side) of the claw portion 6a around the swinging axis C1 and a swinging operation toward the opposite side (the other side) of the claw portion 6a.
- the state is switched between a state in which a part of R2 is blocked (first posture) and a state in which the electrode outlet R2 is opened (second posture).
- the lever member 6 blocks part of the electrode outlet R2 while moving to one side and restricts the electrode 10 from being taken out from the electrode outlet R2, while opening the electrode outlet R2 while moving to the other side.
- the electrode 10 can be taken out from the electrode outlet R2.
- the spring recess 6b accommodates a regulation coil spring 7 (first urging means), and the regulation coil spring 7 is configured such that the distal end side of the lever member 6 swings to the protruding side (one side) of the claw portion 6a. Is energized.
- the regulating coil spring 7 is disposed inside the housing case 4.
- the apparatus 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, as shown in FIG.
- the bracket 8 includes a fixed plate portion 81 fixed to the chip dresser 3, and an upper plate portion 82 and a lower plate portion 83 that extend parallel to each other from the upper edge portion and the lower edge portion of the fixed plate portion 81 so as to be separated from the chip dresser 3. And.
- the 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.
- the index plunger 9 is attached to the center of the upper plate portion 82.
- the surface facing the upper plate portion 82 of the lower plate portion 83 constitutes the guide surface 83a of the present invention, and the guide surface 83a is fitted in each guide groove 41d as shown in FIG. A pair of possible protrusions 83b are formed.
- the guide grooves 41d are made to correspond to the protrusions 83b, and when the housing case 4 is moved along the guide surface 83a, the protrusions 83b are fitted into the guide grooves 41d. It is supposed to be.
- the accommodation case 4 is attached to the mounting recess 8a by fitting the pin 9a of the index plunger 9 into the positioning recess 42c of the cover body 42. 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.
- 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.
- the welding gun held by the welding robot is moved so that the tip of the shank 11 of the welding gun corresponds to the first notch recess 42a of the cover body 42.
- 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 recess 10 a of the electrode 10 in contact with the claw portion 6 a with the outer peripheral surface fitted into the curved surface 6 d of the lever member 6.
- the welding gun is moved so that the electrode 10 attached to the tip of the shank 11 moves to the extended end side of the second passage portion 40b. Then, the lever member 6 resists the urging force of the restricting coil spring 7 and swings to the opposite side of the protruding direction of the claw portion 6a, the electrode outlet R2 is opened, and the electrode 10 is taken out from the electrode outlet R2.
- the number of electrodes 10 accommodated in the accommodation passage R1 becomes one as shown in FIG.
- 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, but the pressing member 52 is guided to the curved guide surface 40f and the passage forming surface portion 6c. As a result, it rotates with respect to the slider 51 and enters 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.
- the operator removes the cover body 42 from the case main body 41, and then grasps both the protrusions 51b of the slider 51 and moves the slider 51 backward against the urging force of the pressing coil spring 55.
- 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 groove 40 with both hands, and the time required for the operation of accommodating each electrode 10 in the groove 40 can be shortened.
- the operator After accommodating the plurality of electrodes 10 in the concave groove 40, the operator attaches the cover body 42 to the case 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.
- 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.
- the structure such as the lever member 6 that switches the electrode outlet R2 between the closed state and the opened state by the swinging operation is, for example, the housing case 4 or the extraction regulating member that regulates the extraction. Dust and dust are less likely to collect around the electrode outlet R2 as compared to the structure in which the guide groove is processed and the extraction regulating member is slid with respect to the housing case 4 to switch the electrode outlet R2 between the closed state and the open state. Therefore, the malfunction of the electrode storage device 1 due to dust or dust can be minimized.
- the lever member 6 and the regulating coil spring 7 are located inside the housing case 4, they are difficult to see from the outside of the housing case 4. Therefore, the overall appearance of the apparatus is improved, and the spot welding electrode storage apparatus 1 with high design can be obtained.
- lever member 6 and the regulating coil spring 7 are located inside the housing case 4, even if another device or tool comes into contact with the spot welding electrode storage device 1, the lever member 6 and the regulating coil spring 7 are arranged. Before coming into contact with the movable part of the coil spring 7, the lever 4 and the regulating coil spring 7 come into contact with the housing case 4 and another device or tool directly contacts the lever member 6 and the regulating coil spring 7. You can prevent things from moving.
- the lever member 6 swings against the biasing force of the regulating coil spring 7 to open the electrode outlet R2. Therefore, the electrode 10 can be smoothly taken out from the accommodation passage R1.
- the electrode 10 adjacent to the taken-out electrode 10 tries to jump out of the electrode outlet R2 by the pressing force of the pressing unit 5, but due to the biasing force of the regulating coil spring 7 Since the lever member 6 closes the electrode outlet R2 while swinging in the direction opposite to the moving direction of each electrode 10 in the accommodation passage R1, the electrode 10 adjacent to the extracted electrode 10 tends to jump out of the electrode outlet R2. Can be reliably stopped before the electrode outlet R2.
- each electrode 10 when the electrode 10 is taken out from the electrode outlet R2, the passage forming surface portion 6c of the lever member 6 smoothly guides each electrode 10 to the electrode outlet R2 side. Accordingly, each electrode 10 can be smoothly moved to the electrode outlet R2 by using the lever member 6 without complicating the structure around the lever member 6, and the low-cost spot welding electrode storage device 1 can be realized. can do.
- the electrode 10 to be taken out from the electrode outlet R2 next can be reliably stopped at a predetermined position before the electrode outlet R2.
- the electrode outlet R2 for taking out the electrode 10 is not opened in the direction in which the pressing force of the pressing unit 5 is applied, the electrode 10 adjacent to the extracted electrode 10 is pressed after the electrode 10 is taken out from the electrode outlet R2.
- the unit 5 does not move in the direction in which the pressing force is applied and jumps out of the electrode outlet R2, and the electrodes 10 can be reliably taken out one by one from the electrode outlet R2.
- the pressing force of the pressing unit 5 can be made strong, even if the pressing force of the pressing unit 5 gradually decreases by repeated use, the electrodes 10 arranged side by side are moved to the electrode outlet R2. A pressing unit having a sufficient pressing force can be selected, and the electrode 10 can be reliably moved to the electrode outlet R2.
- the electrode storage device 1 can be obtained in which deformation and breakage hardly occur.
- the pressing mechanism of the pressing unit 5 is composed of a simple and low-priced component composed of the slider 51, the pressing member 52, and the pressing coil spring 55, the low-cost electrode storage device 1 can be used. it can.
- the electrode 10 when the electrode 10 is accommodated in the concave groove 40 of the case body 41, even if the electrode 10 is accommodated from the base end side with respect to the concave groove 40, the electrode 10 protruding from the concave groove 40. It becomes impossible to attach the cover body 42 to the case main body 41 by the front end side. Therefore, the operator can know that the method of accommodating the electrode 10 in the concave groove 40 is wrong, and the electrode storage device 1 while the accommodation state of each electrode 10 in the concave groove 40 remains wrong. Can be made not to operate.
- the claw portion 6a when the lever member 6 swings in the protruding direction of the claw portion 6a, the claw portion 6a is configured to block a part of the electrode outlet R2. It may be configured to block the entire region of R2.
- 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.
- a curved surface may be formed on the bottom surface of the groove 40 instead of the inclined surface 40d.
- 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 example, for 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.
- Electrode storage device for spot welding 3 Chip dresser (attachment) 4 housing case 5 pressing unit (pressing means) 6 Lever member 6c Passage forming surface portion 6d Curved surface 7 Restricting coil spring (first urging means) DESCRIPTION OF SYMBOLS 10 Electrode 10a Fitting recessed part 11 Shank 40a 1st channel
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Abstract
Description
レバー部材6の基端側は、図5及び図6に示すように、揺動軸60によって収容ケース4に揺動可能に支持されていて、揺動軸60の揺動軸心C1は、収容通路R1に収容状態の電極10の中心軸と同一方向に延びている。
3 チップドレッサー(被取付体)
4 収容ケース
5 押圧ユニット(押圧手段)
6 レバー部材
6c 通路形成面部
6d 湾曲面
7 規制用コイルバネ(第1付勢手段)
10 電極
10a 嵌合凹部
11 シャンク
40a 第1通路部
40b 第2通路部
51 スライダ
52 押圧部材
55 押圧用コイルバネ(第2付勢手段)
60 揺動軸
C1 揺動軸心
R1 収容通路
R2 電極取出口
Claims (8)
- スポット溶接用の電極を複数格納可能なスポット溶接用電極格納装置であって、
上記電極をその中心軸と直交する方向に直線状に、且つ、溶接ガンのシャンク先端に嵌合する嵌合凹部が同一方向に開口するように複数並設した状態で収容可能な収容通路を内部に有し、該収容通路に連通する電極取出口が一端に形成された収容ケースと、
上記収容通路に収容された状態の1つ又は並設状態の複数の電極を上記収容通路の一端側に押圧する押圧手段と、
上記収容通路に収容状態の上記電極の中心軸と同一方向に延びる揺動軸心周りに揺動可能に上記収容ケースに支持され、一方側に揺動して先端側が上記電極取出口の一部を遮る第1姿勢と、他方側に揺動して先端側が上記電極取出口を開放する第2姿勢とに変更可能なレバー部材と、
該レバー部材を一方側に揺動するように付勢する第1付勢手段とを備えていることを特徴とするスポット溶接用電極格納装置。 - 請求項1に記載のスポット溶接用電極格納装置において、
上記レバー部材及び上記第1付勢手段は、上記収容ケースの内方に配設されていることを特徴とするスポット溶接用電極格納装置。 - 請求項2に記載のスポット溶接用電極格納装置において、
上記レバー部材は、先端部分が上記収容通路の電極取出口側で、且つ、揺動軸心側が上記収容通路の奥側に位置する配置となっていることを特徴とするスポット溶接用電極格納装置。 - 請求項3に記載のスポット溶接用電極格納装置において、
上記レバー部材には、上記収容通路の延長方向に沿って延び、当該収容通路における内側面の一部を構成する通路形成面部が設けられていることを特徴とするスポット溶接用電極格納装置。 - 請求項4に記載のスポット溶接用電極格納装置において、
上記通路形成面部における上記レバー部材の先端側には、上記電極の外周面に対応する湾曲面が形成されていることを特徴とするスポット溶接用電極格納装置。 - 請求項1から5のいずれか1つに記載のスポット溶接用電極格納装置において、
上記収容通路は、上記収容ケースの長手方向一端に向かって直線状に延びる第1通路部と、該第1通路部の延出端から当該第1通路部と交差する方向に延びてその延出端側が開口する第2通路部とを備え、
当該第2通路部の延出端における開口部分が上記電極取出口となっていることを特徴とするスポット溶接用電極格納装置。 - 請求項6に記載のスポット溶接用電極格納装置において、
上記レバー部材は、上記収容通路の一端側に配設され、上記第1通路部の延出端に揺動軸が位置するとともに上記第2通路部の延長方向に沿って上記揺動軸から上記電極取出口まで延びる形状をなしていることを特徴とするスポット溶接用電極格納装置。 - 請求項6又は7に記載のスポット溶接用電極格納装置において、
上記押圧手段は、上記収容通路に配置され、且つ、上記第1通路部に沿って進退可能なスライダと、該スライダを前進方向に付勢する第2付勢手段とを備え、
上記スライダの前方には、上記収容通路に収容状態の上記電極の中心軸と同一方向に延びる回動軸心周りに回動可能となるように上記スライダに軸支された押圧部材が設けられていることを特徴とするスポット溶接用電極格納装置。
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CA3024981A CA3024981C (en) | 2016-12-12 | 2017-09-21 | Spot welding electrode housing apparatus |
CN201780031973.3A CN109311117B (zh) | 2016-12-12 | 2017-09-21 | 点焊用电极收纳装置 |
MX2018014568A MX2018014568A (es) | 2016-12-12 | 2017-09-21 | Aparato de alojamiento de electrodos de soldadura por puntos. |
EP17881626.0A EP3552751B1 (en) | 2016-12-12 | 2017-09-21 | Electrode housing device for spot welding |
JP2018556193A JP6759361B2 (ja) | 2016-12-12 | 2017-09-21 | スポット溶接用電極格納装置 |
US16/200,709 US11117211B2 (en) | 2016-12-12 | 2018-11-27 | Spot welding electrode housing apparatus |
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2017
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JP6759361B2 (ja) | 2020-09-23 |
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CA3024981C (en) | 2020-10-27 |
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US11117211B2 (en) | 2021-09-14 |
CN109311117B (zh) | 2021-07-09 |
US20190091792A1 (en) | 2019-03-28 |
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CA3024981A1 (en) | 2018-06-21 |
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