Weld Tip Remover

Abstract

To provide a weld tip remover which is improved in work efficiency, and prevents warping of a shank and a weld tip in a weld tip removal process.SOLUTION: A weld tip remover includes: a cylindrical tube type case in which an inclined guide groove is formed along a circumference of a tube wall; a turntable which is so installed in the cylindrical tube type case as to be axially rotatable by the guide bar that is provided on an outer peripheral surface and is fitted into the inclined guide groove, and of which an inner peripheral surface defines a tip storage hole penetrated therethrough; and a hinge bar of which one end part is hinged to a translational actuator, a body part is hinged to one side of the turntable, and the other end is provided with a drive jaw that is exposed to one side of the inner peripheral surface of the turntable.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The Present Disclosure relates to an apparatus for removing a welding tip used in spot welding. [Background technology]

[0002] The welding tip removal device is a device for removing a used welding tip before a new welding tip is coupled to the shank in a welding tip replacement device.

[0003] Korean Patent Publication No. 10-1310291 discloses a welding tip replacement device, which is an example of a welding tip removal device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Republic of Korea Patent Registration No. 10-1310291 (2013.09.24.) Summary of the Invention [Problem to be solved by the invention]

[0005] To provide a welding tip removal device which improves the efficiency of removing a welding tip from a shank and prevents warping of the shank and the welding tip during the welding tip removal process. [Means for solving the problem]

[0006] The welding tip removal device according to the first embodiment includes a cylindrical tube-type case having an inclined guide groove formed around the tube wall; a turntable that is rotatably mounted inside the cylindrical tube-type case by a guide bar provided on the outer peripheral surface and fitted into the inclined guide groove, and has an inner peripheral surface that defines a tip receiving hole formed therethrough; and a hinge bar having one end hinged to a translation actuator, a main body hinged to one side of the turntable, and the other end provided with a driving jaw exposed to one side of the inner peripheral surface of the turntable.

[0007] In the welding tip removal device according to the second embodiment, a welding tip removal device according to the first embodiment (first device) and a welding tip removal device according to the second embodiment (second device) are arranged so as to overlap in the axial direction, the inclined guide grooves of the first device and the inclined guide grooves of the second device are arranged so as to be inclined in opposite directions, and one end of a hinge bar of the first device and one end of a hinge bar of the second device are hingedly connected to the same translation actuator.

[0008] The welding tip removal device according to the third embodiment has a welding tip removal device according to the first embodiment (first device) and a welding tip removal device according to the second embodiment (second device) arranged side by side vertically in the axial direction, with the inclined guide groove of the first device and the inclined guide groove of the second device arranged to be inclined in opposite directions, and one end of a hinge bar of the first device and one end of a hinge bar of the second device hingedly connected to the same translation actuator.

[0009] The welding tip removal device according to the first to third embodiments may be provided with a blocking piece at one axial end of the cylindrical tubular case, which is driven by rotation of the rotating disk and closes at least a part of the end of the tip receiving hole.

[0010] In the welding tip removal device according to the first to third embodiments, the inclined guide groove may include a first region parallel to the circumferential direction of the cylindrical tubular case and a second region inclined with respect to the circumferential direction of the cylindrical tubular case. Effect of the Invention

[0011] The welding tip removal device according to the embodiment has a small number of parts, a simple structure, is free from minor malfunctions, and is highly durable.

[0012] The welding tip removal device according to the embodiment has a simple power transmission structure and is excellent in removal work efficiency.

[0013] The welding tip removal device according to the embodiment is configured not to apply a force in a direction that would tilt the axes of the shank and welding tip, so that warping of the shank and welding tip is prevented during the welding tip removal process.

[0014] The welding tip removal device according to the embodiment has a simple structure and is easy to maintain. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view of a welding tip removal device according to a first embodiment. FIG. [Diagram 2] FIG. 2 is an exploded view of the welding tip removal device according to the first embodiment. [Diagram 3] 1 is a cross-sectional view showing an example of use of the welding tip removal device according to the first embodiment. FIG. [Figure 4] 1 is a perspective view showing an example of use of the welding tip removal device according to the first embodiment. FIG. [Diagram 5] FIG. 11 is a perspective view of a welding tip removal device according to a second embodiment. [Figure 6] FIG. 6 is an exploded view of the welding tip removal device according to the second embodiment. [Figure 7] FIG. 11 is a cross-sectional view showing an example of use of the welding tip removal device according to the second embodiment. [Figure 8] FIG. 11 is a perspective view of a welding tip removal device according to a third embodiment. [Figure 9] FIG. 11 is an exploded view of the welding tip removal device according to the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The advantages and features of the present disclosure, and the method of achieving them, will become clear with reference to the embodiments described below in detail with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, and may be embodied in various different forms. However, the present embodiments are provided to complete the disclosure and fully inform those skilled in the art of the scope of the invention, and the present disclosure is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification.

[0017] The welding tip removal devices 100, 100', 100'' according to the first to third embodiments will be described in detail with reference to the drawings.

[0018] Welding tip removal device 100 according to the first embodiment

[0019] A welding tip removal device 100 according to a first embodiment (hereinafter referred to as "welding tip removal device 100'") will be specifically described with reference to Figs. 1 to 4.

[0020] FIG. 1 is a perspective view of the welding tip removal device 100, FIG. 2 is an exploded view of the welding tip removal device 100, FIG. 3 is a cross-sectional view showing an example of use of the welding tip removal device 100, and FIG. 4 is a perspective view showing an example of use of the welding tip removal device 100.

[0021] 1 and 2, the welding tip removal device 100 includes a cylindrical tubular case 110, a rotating disk 120, and a hinge bar .

[0022] The cylindrical tubular case 110 has a predetermined height, and an inclined guide groove 111 is formed along the periphery of the tubular wall 110a.

[0023] The inclined guide groove 111 is formed to be inclined along the circumference of the pipe wall 110a. Here, the meaning of "inclined" does not mean that the tangent line at all points in the entire section from the start point to the end point is inclined, but means that the straight line connecting the start point and the end point is inclined. Specifically, the inclined guide groove 111 may include a first region 111a formed to extend parallel to the pipe wall 110a, and a second region 111b formed to extend from the first region 111a to be inclined with respect to the circumference of the pipe wall 110a.

[0024] The rotating disk 120 is provided on the inner peripheral surface of the cylindrical tubular case 110 and includes a guide bar 122 and a tip receiving hole 123 .

[0025] The rotating disk 120 may have a side groove 121 formed on the outer circumferential surface thereof to receive one end of a guide bar 122 .

[0026] One end of the guide bar 122 is received in the side groove 121 of the rotating disk 120, and the other end is received in the inclined guide groove 111. As a result, the rotating disk 120 is rotatably coupled inside the cylindrical tubular case 110.

[0027] In the embodiment, the inclined guide groove 111 is illustrated as penetrating the tube wall 110a, but the inclined guide groove 111 may be a non-penetrating groove carved into the inner peripheral surface of the cylindrical tube case 110, and the guide bar 122 may be configured as a ball plunger that is installed on the outer peripheral surface of the rotating disk 120 and elastically deforms inward and outward in the radial direction of the rotating disk 120.

[0028] The inner circumferential surface of the rotating disk 120 defines a chip receiving hole 123, which is formed through the center of the rotating disk 120.

[0029] The rotating disk 120 may be provided with a fixed jaw 124 exposed to the inside of the tip receiving hole 123. The fixed jaw 124 functions to fix the welding tip T together with a driving jaw 131, which will be described later.

[0030] The hinge bar 130 has one end hinged to the translation actuator 170 and a body hinged to one side of the rotating disk 120 .

[0031] The other end of the hinge bar 130 is provided with a driving jaw 131 exposed to one side of the inner circumferential surface of the rotating disk 120 .

[0032] The translation actuator 170 is driven to rotate the main body of the hinge bar 130 at a predetermined angle, so that the driving jaw 131 protrudes toward the center of the tip receiving hole 123 .

[0033] The process in which the welding tip removal device 100 removes the welding tip T will be described in detail with reference to FIG.

[0034] In the initial state of the welding tip removal device 100, the guide bar 122 is positioned at the end of the first region 111a of the inclined guide groove 111. Specifically, it is positioned on the opposite side to the portion where the first region 111a and the second region 111b are connected.

[0035] When the welding tip T is inserted into the tip receiving hole 123, the translation actuator 170 is driven.

[0036] In the welding tip removal device 100, when the translation actuator 170 is driven, the hinge bar 130 is rotated and the driving jaw 131 at the other end of the hinge bar 130 is protruded toward the center of the tip receiving hole 123. At this time, the driving jaw 131 fixes the welding tip T together with the fixed jaw 124.

[0037] When the hinge bar 130 rotates enough to allow the driving jaw 131 to fix the welding tip T together with the fixed jaw 124, the hinge bar 130 abuts against the locking protrusion 127 provided on the rotating plate 120, thereby interrupting the rotation of the hinge bar 130 relative to the rotating plate 120.

[0038] Thereafter, rotation of the hinge bar 130 by the translation actuator 170 causes the rotating disk 120 to rotate with the cylindrical tubular case 110 .

[0039] In the embodiment, a configuration has been described in which the rotation of the hinge bar 130 relative to the rotating platen 120 is interrupted by the locking protrusion 127. However, it is also possible to have a configuration without the locking protrusion 127, in which after the hinge bar 130 has rotated to the extent that the driving jaw 131 can fix the welding tip T together with the fixed jaw 124, the fixed jaw 124 rotates together with the hinge bar 130, thereby allowing the rotating platen 120, which is integrated with the fixed jaw 124, to rotate together.

[0040] At this time, the guide bar 122 of the rotary disk 120 moves in the order of the first region 111a and the second region 111b in the inclined guide groove 111. More specifically, since the first region 111a is formed extending parallel to the pipe wall 110a, the rotary disk 120 is rotated by the guide bar 122 without changing its height. As a result, the driving jaw 131 fixes the welding tip T together with the fixed jaw 124.

[0041] Thereafter, since the second region 111b is formed to extend and incline around the pipe wall 110a, the turntable 120 rotates the guide bar 122 in a direction around the cylindrical pipe case 110 and moves in the axial direction of the cylindrical pipe case 110 at the same time. As a result, the welding tip T moves together with the turntable 120 and is removed from the shank S. That is, while the turntable 120 is rotated by the guide bar 122 without changing its height, the driving jaw 131 grips the welding tip T fitted in the shank S, and then, while the turntable 120 moves in the axial direction, the welding tip T is completely removed from the shank S. As a result, the welding tip removal device 100 rotates the welding tip T while fixing both sides thereof, and the welding tip T can be removed from the shank S without warping of the shank S and the welding tip T.

[0042] The welding tip removal device 100 may further be provided with a ball plunger 128 in the tip receiving hole 123, and the ball plunger 128 can push the welding tip T out of the tip receiving hole 123 and guide the welding tip T to fall downward naturally.

[0043] Referring to FIG. 2, the welding tip removal device 100 may include a first cover 150, a second cover, and a blocking piece 140 that is inserted between the welding tip T and the shank S when the welding tip T is inserted into the tip receiving hole 123.

[0044] The first cover 150 is disposed on the upper part of the cylindrical tubular case 110 to cover the upper surface of the cylindrical tubular case 110. The first cover 150 is formed with a first blocking piece receiving part 151 that receives the lower part of the blocking piece 140 and provides a path for the blocking piece 140 to be drawn toward the chip receiving hole 123.

[0045] The second cover 160 is disposed on the top of the first cover 150 to cover the top surface of the first cover 150. The second cover 160 is formed with a second blocking piece receiving portion 152 that receives the top of the blocking piece 140 and provides a path leading to the chip receiving hole 123 of the blocking piece 140.

[0046] The blocking piece 140 is disposed between the first blocking piece accommodating portion 151 of the first cover 150 and the second blocking piece accommodating portion 152 of the second cover 160, and when pulled out toward the chip accommodating hole 123, it can block at least a portion of the end of the chip accommodating hole 123.

[0047] The weld tip removal device 100 may include a rod 126 so that power is transferred from the rotation of the rotating disk 120 to the cutoff piece 140 .

[0048] The rod 126 is disposed in a manner that it passes through the rotating disk 120, the first cover 150, and the blocking piece 140 in succession.

[0049] A rod guide groove 125 is formed penetrating the turntable 120 in the axial direction of the turntable 120. More specifically, the rod guide groove 125 is formed penetrating and inclined toward the center of the turntable 120 so that the rod 126 can move forward or backward.

[0050] The first cover 150 has a hole which is axially connected to the rod guide groove 125 and extends radially through the rotating disk 120 .

[0051] The blocking piece 140 is formed with a rod guide groove 125 and a rod receiving hole 141 which communicates with the hole of the first cover 150. The rod receiving hole 141 receives an end of the rod 126.

[0052] The process of operating the blocking piece 140 of the welding tip removal device 100 will now be described in detail with reference to FIG.

[0053] Referring to FIG. 4, when the translation actuator 170 is driven, the hinge bar 130 abuts against one side of the chip receiving hole 123 of the rotating disk 120 , so that the rotating disk 120 is rotated with the cylindrical tube-type case 110 .

[0054] When the rotating disk 120 rotates, the position of the rod guide groove 125 is moved, and the rod 126 is moved along the rod guide groove 125 toward the chip receiving hole 123 .

[0055] Since the rod 126 is connected to the blocking piece 140, the blocking piece 140 is pulled toward the tip receiving hole 123 according to the position of the rod 126, and is inserted between the welding tip T and the shank S to prevent the shank S from moving in the axial direction when the welding tip T is removed in the axial direction. Similarly, when a force is applied to the blocking piece 140 in a direction away from the tip receiving hole 123, the blocking piece 140 must be moved along the rod guide groove 125, so the direct load on the translation actuator 170 is reduced.

[0056] Welding tip removal device 100' according to a second embodiment

[0057] A welding tip removal device 100' according to a second embodiment (hereinafter referred to as "welding tip removal device 100'") will be described in detail with reference to Figures 5 to 7. However, the "cylindrical tubular case 110', tubular wall 110a', inclined guide groove 111', first region 111a', second region 111b', rotating disk 120', side groove 121', guide bar 122', tip accommodating hole 123', fixed jaw 124', rod guide groove 125', rod 126', hinge bar 130', driving jaw 131', blocking piece 140', rod accommodating hole 141', first cover 150', first blocking piece accommodating portion 151', second cover 160', and second blocking piece accommodating portion 161" are the same as those of the "cylindrical tubular case 110" described above. , pipe wall 110a, inclined guide groove 111, first region 111a, second region 111b, rotating disk 120, side groove 121, guide bar 122, tip accommodating hole 123, fixed jaw 124, rod guide groove 125, rod 126, hinge bar 130, driving jaw 131, cutter piece 140, rod accommodating hole 141, first cover 150, first cutter piece accommodating portion 151, second cover 160, and second cutter piece accommodating portion 161 have the same connecting structure as those of the first cover 150, the first cutter piece accommodating portion 151, the second cover 160, and the second cutter piece accommodating portion 161, but the connecting direction is changed from up to down, so the description of the shape and connecting relationship will be omitted.

[0058] FIG. 5 is a perspective view of the welding tip removal device 100', FIG. 6 is an exploded view of the welding tip removal device 100', and FIG. 7 is a cross-sectional view showing an example of use of the welding tip removal device 100'.

[0059] 5 and 6, the welding tip removal device 100' can remove the welding tip T inserted from above and the welding tip T inserted from below by moving the hinge bars 130, 130', the rotating disks 120, 120', and the blocking pieces 140, 140' using a single translational actuator 170.

[0060] 6, the cylindrical tubular cases 110, 110' are arranged to overlap each other. The inclined guide groove 111 of the cylindrical tubular case 110 located at the upper part is arranged to be inclined downward, and the inclined guide groove 111' of the cylindrical tubular case 110' located at the lower part is arranged to be inclined upward. Specifically, the inclined guide groove 111' of the cylindrical tubular case 110' located at the lower part may include a first region 111a' formed to extend in the circumferential direction of the tube wall 110a', and a second region 111b' formed to extend upward based on the axial direction of the cylindrical tubular case 110'. For reference, the rotating disks 120, 120' are rotated by the hinge bars 130, 130' in a state where the driving jaws 131, 131' are abutted against the welding tip T. The turntable 120 arranged at the top moves downward based on the axial direction of the cylindrical tubular case 110, and the turntable 120' arranged at the bottom moves upward based on the axial direction of the cylindrical tubular case 110'.

[0061] Therefore, in order to remove the welding tip T using the welding tip removal device 100', it is preferable that a descending welding tip T is inserted into the tip receiving hole 123 located at the upper part, and it is preferable that a rising and descending welding tip T is inserted into the tip receiving hole 123' located at the lower part.

[0062] It is preferable that the welding tip removal device 100' sequentially receives and then removes the ascending and descending welding tips T. However, the order in which the welding tip removal device 100' is used to remove the ascending and descending welding tips T is not limited.

[0063] Referring to FIG. 7, the process of removing the welding tip T from the upper part of the ``cylindrical tubular case 110, pipe wall 110a, inclined guide groove 111, first region 111a, second region 111b, rotating disk 120, side groove 121, guide bar 122, tip receiving hole 123, fixed jaw 124, hinge bar 130, and driving jaw 131'' is the same as described above, so it will be omitted. Instead, the process of removing the welding tip T from the lower part of the ``cylindrical tubular case 110', pipe wall 110a', inclined guide groove 111', first region 111a', second region 111b', rotating disk 120', side groove 121', guide bar 122', tip receiving hole 123', fixed jaw 124', hinge bar 130', and driving jaw 131''' will be described.

[0064] When the welding tip T is inserted into the tip receiving hole 123', the translation actuator 170 is driven.

[0065] In the welding tip removal device 100', when the translation actuator 170 is driven, the hinge bar 130' is rotated based on one side of the rotating platen 120', and the driving jaw 131' is rotated toward the center of the tip receiving hole 123'. At this time, the driving jaw 131' can fix the welding tip T together with the fixed jaw 123', so that the driving jaw 131' does not protrude to the center of the rotating platen 120'.

[0066] With the driving jaw 131' in contact with the welding tip T, the hinge bar 130' rotates the rotating plate 120' in the cylindrical tube case 110'. At this time, the guide bar 122' of the rotating plate 120' moves in the inclined guide groove 111' to the first region 111a' and then to the second region 111b'. More specifically, since the first region 111a' is formed to extend in parallel around the tube wall 110a', the rotating plate 120' is rotated by the guide bar 122' without changing its height. As a result, the driving jaw 131 fixes the welding tip T together with the fixed jaw 124.

[0067] Then, since the second region 111b' is formed to extend and incline upward around the pipe wall 110a', the turntables 120, 120' rotate the guide bar 122' in the circumferential direction of the cylindrical pipe case 110' and at the same time, move upward based on the axial direction of the cylindrical pipe case 110'. Eventually, the welding tip T moves upward based on the shank S and is removed from the shank S.

[0068] The welding tip removal device 100 may further be provided with a ball plunger 128 in the tip receiving hole 123, and the ball plunger 128 can push the welding tip T out of the tip receiving hole 123 and guide the welding tip T to fall downward naturally.

[0069] 4 and 6, the process of operating the cutoff pieces 140, 140 of the cylindrical tube case 110, tube wall 110a, inclined guide groove 111, first region 111a, second region 111b, rotating disk 120, side groove 121, guide bar 122, tip receiving hole 123, fixed jaw 124, rod guide groove 125, rod 126, hinge bar 130, driving jaw 131, cutoff piece 140, rod receiving hole 141, first cover 150, first cutoff piece receiving portion 151, second cover 160, and second cutoff piece receiving portion 161' arranged at the top is the same as that described above. Hereinafter, only the operation process of the cutoff piece 140' arranged at the bottom, which is made up of the cylindrical tube case 110', tube wall 110a', inclined guide groove 111', first region 111a', second region 111b', rotating disk 120', side groove 121', guide bar 122', tip accommodating hole 123', fixed jaw 124', rod guide groove 125', rod 126, hinge bar 130', driving jaw 131', cutoff piece 140', rod accommodating hole 141', first cover 150', first cutoff piece accommodating portion 151', second cover 160', and second cutoff piece accommodating portion 161' will be described.

[0070] 4 and 6, when the welding tip T is inserted into the tip receiving hole 123', the translation actuator 170 is driven.

[0071] When the rotating disk 120' is rotated, the position of the rod guide groove 125' is moved, and the rod 126 is moved along the rod guide groove 125' toward the chip receiving hole 123'.

[0072] Since the rod 126 is connected to the blocking piece 140', the blocking piece 140' is pulled toward the tip receiving hole 123' depending on the position of the rod 126 and inserted between the welding tip T and the shank S to prevent the shank S from moving axially when the welding tip T is removed in the axial direction.

[0073] Welding tip removal device 100'' according to a third embodiment

[0074] A welding tip removal apparatus 100'' according to a third embodiment (hereinafter referred to as "welding tip removal apparatus 100'') will be described in detail with reference to Figures 6, 8 and 9. However, the following points are not limited to the following: "cylindrical tubular case 100, 110', tubular walls 110a, 110a', inclined guide grooves 111, 111', first regions 111a, 111a', second regions 111b, 111b', rotating disks 120, 120', side grooves 121, 121', guide bars 122, 122', tip receiving holes 123, 123', fixed jaws 124, 124', and the like of the welding tip removal apparatus 100''. The welding tip removal device 1', the rod guide grooves 125, 125', the rods 126, 126', the hinge bars 130, 130', the driving jaws 131, 131', the cutoff pieces 140, 140', the rod accommodating holes 141, 141', the first covers 150, 150', the first cutoff piece accommodating portions 151, 151', the second covers 160, 160', and the second cutoff piece accommodating portions 161, 161' are the same as those of the welding tip removal device 1 00', "cylindrical tube type case 100, 110', tube wall 110a, 110a', inclined guide groove 111, 111', first region 111a, 111a', second region 111b, 111b', rotating disk 120, 120', side groove 121, 121', guide bar 122, 122', tip receiving hole 123, 123', fixed jaw 124, 124', rod guide groove 125, 125' ', rods 126, 126', hinge bars 130, 130', driving jaws 131, 131', blocking pieces 140, 140', rod accommodating holes 141, 141', first covers 150, 150', primary fragment accommodating portions 151, 151', second covers 160, 160' and secondary blocking piece accommodating portions 161, 161' have the same arrangement and connection structure, so detailed explanations will be omitted.

[0075] FIG. 8 is a perspective view of the welding tip removal device 100'', and FIG. 9 is an exploded view of the welding tip removal device 100''.

[0076] 8 and 9, the welding tip removal device 100'' can remove the welding tip T inserted into the tip receiving hole 123 located at the front side and the welding tip T inserted into the tip receiving hole 123' located at the rear side by moving the hinge bars 130, 130', the rotating disks 120, 120', and the blocking pieces 140, 140' using a single translational actuator 170.

[0077] 9, the cylindrical tubular cases 110 and 110' are arranged side by side at the front and rear. The inclined guide groove 111 of the cylindrical tubular case 110 located at the front side is arranged to be inclined downward, and the inclined guide groove 111' of the cylindrical tubular case 110' located at the rear side is arranged to be inclined upward. Specifically, the inclined guide groove 111 of the cylindrical tubular case 110 located at the front side can include a first region 111a formed to extend in the circumferential direction of the tube wall 110a, and a second region 111b formed to extend downward based on the axial direction of the cylindrical tubular case 110. The inclined guide groove 111' of the cylindrical tubular case 110' located at the rear side can include a first region 111a' formed to extend in the circumferential direction of the tube wall 110a', and a second region 111b' formed to extend upward based on the axial direction of the cylindrical tubular case 110'.

[0078] For reference, each of the two rotating disks 120, 120' is rotated in a direction based on an axis by each hinge bar 130, 130' with each driving jaw 131, 131' abutting the welding tip T, and the rotating disk 120 located at the front is moved downward and the rotating disk 120' located at the rear is moved upward.

[0079] As a result, it is preferable for a descending welding tip T to be inserted into the tip accommodating hole 123 located at the front, and it is preferable for a rising and descending welding tip T to be inserted into the tip accommodating hole 123' located at the rear.

[0080] 8 and 9, the welding tip removal device 100'' can remove the rising and lowering welding tips T after they are simultaneously received. However, when the rising and lowering welding tips T are sequentially received in one of the tip receiving holes 123, 123', the order in which the rising and lowering welding tips T are removed using the welding tip removal device 100'' is not limited.

[0081] 4, 6 and 9, the process of removing the welding tip T from the “cylindrical tubular case 110, inclined guide groove 111, first region 111a, second region 111b, rotating plate 120, side groove 121, guide bar 122, tip accommodating hole 123, fixed jaw 124, hinge bar 130, driving jaw 131” arranged at the front side is the same as the process of removing the welding tip T from the “cylindrical tubular case 110, inclined guide groove 111, first region 111a, second region 111b, rotating plate 120, side groove 121, guide bar 122, tip accommodating hole 123, fixed jaw 124, hinge bar 130, driving jaw 131” arranged at the upper part of the welding tip removal device 100, 100′ according to the first or second embodiment.

[0082] The process of removing the welding tip T from the ``cylindrical tubular case 110', inclined guide groove 111', first region 111a', second region 111b', rotating disk 120', side groove 121', guide bar 122', tip accommodating hole 123', fixed jaw 124', hinge bar 130', and driving jaw 131''' arranged at the rear side is the same as the process of removing the welding tip T from the ``cylindrical tubular case 110', inclined guide groove 111', first region 111a', second region 111b', rotating disk 120', side groove 121', guide bar 122', tip accommodating hole 123', fixed jaw 124', hinge bar 130', and driving jaw 131''' arranged at the lower part of the welding tip removal device 100' according to the second embodiment.

[0083] 4, 6 and 9, the process by which the blocking piece 140 of the "cylindrical tubular case 110, inclined guide groove 111, first region 111a, second region 111b, rotating disk 120, side groove 121, guide bar 122, tip accommodating hole 123, fixed jaw 124, hinge bar 130, driving jaw 131" arranged on the front side operates is the same as the process by which the blocking piece 140 of the "cylindrical tubular case 110, inclined guide groove 111, first region 111a, second region 111b, rotating disk 120, side groove 121, guide bar 122, tip accommodating hole 123, fixed jaw 124, hinge bar 130, driving jaw 131" arranged on the upper part of the welding tip removal device 100, 100' according to the first or second embodiment operates.

[0084] The process by which the blocking piece 140' of the ``cylindrical tubular case 110', inclined guide groove 111', first region 111a', second region 111b', rotating disk 120', side groove 121', guide bar 122', tip accommodating hole 123', fixed jaw 124', hinge bar 130', and driving jaw 131''' arranged on the rear side is operated is the same as the process by which the blocking piece 140' of the ``cylindrical tubular case 110', inclined guide groove 111', first region 111a', second region 111b', rotating disk 120', side groove 121', guide bar 122', tip accommodating hole 123', fixed jaw 124', hinge bar 130', and driving jaw 131''' arranged at the lower part of the welding tip removal device 100'' according to the second embodiment is operated.

[0085] The welding tip removal device 100'' can remove the welding tip T by a cylindrical tube-type case 110 in which one of two spot welding machines is arranged at the front side and components connected thereto, and can remove the other one of the two spot welding machines by a cylindrical tube-type case 110' in which the other of the two spot welding machines is arranged at the rear side and components connected thereto. [Explanation of symbols]

[0086] 100, 100', 100'': Welding tip removal device 110, 110': Cylindrical tube case 110a, 110a': Pipe wall 111, 111': Inclined guide groove 111a, 111a': 1st area 111b, 111b': 2nd area 120, 120': Turntable 122, 122': Guide bar 123, 123': chip receiving hole 125, 125': Rod guide groove 126, 126': bar 130, 130': Hinge bar 131, 131': Driving jaw 140, 140': cutoff piece 141, 141': Rod receiving hole 170: Translation actuator

Claims

1. A cylindrical tube-type case having an inclined guide groove formed along the circumference of the tube wall; a rotating disk that is rotatably mounted inside the cylindrical tube-type case by a guide bar that is provided on an outer peripheral surface and is fitted into the inclined guide groove, the rotating disk having an inner peripheral surface that defines a chip receiving hole formed therethrough; and a hinge bar having one end hinged to a translation actuator, a body hinged to one side of the rotary disk, and a drive jaw at the other end exposed to one side of an inner circumferential surface of the rotary disk.

2. A welding tip removal device, comprising: a welding tip removal device (first device) of claim 1 and a welding tip removal device (second device) of claim 2, arranged to be overlapped in the axial direction, an inclined guide groove of the first device and an inclined guide groove of the second device arranged to be inclined in opposite directions, and one end of a hinge bar of the first device and one end of a hinge bar of the second device hingedly connected to a same translation actuator.

3. A welding tip removal device, comprising: a welding tip removal device (first device) of claim 1 and a welding tip removal device (second device) of claim 2, arranged side by side vertically in the axial direction, an inclined guide groove of the first device and an inclined guide groove of the second device arranged to be inclined in opposite directions, and one end of a hinge bar of the first device and one end of a hinge bar of the second device hingedly connected to a same translation actuator.

4. 4. The welding tip removal device according to claim 1, wherein an axial end of the cylindrical tubular case is provided with a blocking piece that is driven by rotation of the turntable to block at least a portion of the end of the tip receiving hole.

5. 4. The welding tip removal device according to claim 1, wherein the inclined guide groove includes a first region parallel to a circumferential direction of the cylindrical tubular case, and a second region inclined with respect to the circumferential direction of the cylindrical tubular case.

Images