JP5727757B2 - Sealing can device - Google Patents

Description

  The present invention relates to a can device for welding one member and another member placed on the one member.

  Conventionally, a gripping jig part (holding part) for gripping and positioning a case member (one member) fitted with a lid member (other member), a rotating part for rotating the gripped case member, and a lid member And a welding portion composed of a laser emitting means for irradiating a connecting portion of the case member with a laser beam for welding and an XY table mechanism that moves by mounting the laser beam, and emits a welding laser to A sealing device that welds the entire circumference is known (see Patent Document 1).

  As a method for fitting the lid member 62 and the case member 61, the lid member 62 is fitted into the concave portion of the case member 61 (see FIG. 15A), or the convex portion of the lid member 62 is attached to the case member 61. There are things to be fitted (see FIG. 15B). However, the lid member 62 is not arranged with no gap with respect to the case member 61, and there is a gap between the lid member 62 and the case member 61 in order to facilitate the insertion of the lid member 62 into the case member 61. Often. For example, when the cover member 62 having a convex portion is placed on the case member 61 as shown in FIG. 14, the horizontal position of the cover member 62 may be shifted with respect to the case member 61. In such a case, if welding with the laser beam L is performed without positioning the lid member 62 in the horizontal direction, the laser beam L is not uniformly irradiated to the mating portion between the lid member 62 and the case member 61. For this reason, the case member 61 and the lid member 62 cannot be uniformly melted and are not welded (welding is insufficient). In addition, if the deviation between the case member 61 and the lid member 62 varies for each member, uneven welding occurs for each member.

JP 2004-105981 A

  The present invention has been made in consideration of such points, and by making the horizontal position of the other member accurate with respect to the one member, welding when welding the one member and the other member is performed. An object of the present invention is to provide a sealed can device that can eliminate defects and uneven welding for each member.

The sealed can device according to the present invention is:
A sealing can device for welding one member and another member placed on the one member,
A holding portion for holding the one member;
A plurality of positioning portions that contact a plurality of locations on the side surface of the other member to position the other member in a horizontal direction;
After the positioning of the other member in the horizontal direction by the positioning portion, a welding part that welds the one member and the other member by applying energy to the one member and the other member;
An elevating part that pushes up the one member and the other member placed on the one member;
A vertical positioning part fixed in the vertical direction and in contact with the other member on the one member;
A retracting portion for positioning the positioning portion at the retracted position,
The one member and the other member placed on the one member are pushed upward by the elevating part, and the other member is brought into contact with the vertical positioning part to be a peripheral part of the other member. And a portion positioned at least on the inner peripheral side of the positioning portion among the one member and the other member after the vertical space between the peripheral portion of the one member and the peripheral portion of the one member is filled. Prior to welding with energy from the welded portion, the retracting portion positions the positioning portion in the retracted position.

In the sealing can device according to the present invention,
The retracting part may be provided in the holding part or the vertical positioning part.

In the sealing can device according to the present invention,
All of the positioning portions may be positioned at the retracted position before the one member and the other member are welded at the welded portion.

In the sealing can device according to the present invention,
Each of the positioning portions may be temporarily positioned at a retracted position when a portion of the one member and the other member located on the inner peripheral side of the positioning portion is welded by the welding portion. .

In the sealing can device according to the present invention,
Each of the positioning portions is positioned at a retreat position when a portion of the one member and the other member that is located on the inner peripheral side with respect to the positioning portion is welded by the welding portion. Even after welding, it may be positioned in the retracted position.

In the sealing can device according to the present invention,
The welding portion welds a portion other than the portion located on the inner peripheral side with respect to the positioning portion among the one member and the other member,
The positioning portion may be positioned at the retracted position after at least a part of the one member and the other member other than the portion positioned on the inner peripheral side with respect to the positioning portion is welded. Good.

In the sealing can device according to the present invention,
Before the positioning of the other member in the horizontal direction by the positioning portion, a contact portion that contacts the other member from above may be further provided.

In the sealing can device according to the present invention,
A biasing member that applies a downward biasing force to the contact portion is coupled,
The urging force of the urging member is generated by the elevating unit by the one member and the push-up force that pushes up the other member placed on the one member, and the vertical positioning unit and the elevating unit. It may be smaller than a clamping force for clamping the one member and the other member placed on the one member.

In the sealing can device according to the present invention,
The positioning unit may be connected to the holding unit and position the other member with reference to the holding unit.

In the sealing can device according to the present invention,
At least one of the positioning portions may be movable in the horizontal direction by a biasing member.

  According to the present invention, after positioning the other member in the horizontal direction by the positioning portion, energy is applied to the one member and the other member and welding is performed. Therefore, the horizontal position of the other member with respect to the one member is determined. It can be accurate. As a result, it is possible to eliminate poor welding when welding one member and another member and uneven welding for each member.

FIG. 1 is a configuration diagram showing a configuration of a can sealing device according to a first embodiment of the present invention. FIG. 2 is an enlarged side view showing the retracting portion of the sealed can device according to the first embodiment of the present invention. FIG. 3 is an upper plan view showing a state in which the lid member is positioned by the positioning roller in the sealing device according to the first embodiment of the present invention. FIG. 4 is a side view showing an aspect in which the lid member is positioned and welded to the case member in the sealed can device according to the first embodiment of the present invention. FIG. 5 is a side view showing an aspect in which the case member and the lid member are welded in the sealing device according to the first embodiment of the present invention. FIG. 6 is a side view showing an aspect in which the case member and the lid member are welded in the sealing device according to the second embodiment of the present invention. FIG. 7 is an enlarged side view showing how the positioning roller moves when the lid member is thermally expanded in the sealing device according to the second embodiment of the present invention. FIG. 8 is an enlarged side view showing the retracting portion of the sealed can device according to the second embodiment of the present invention. FIG. 9 is a side view showing an aspect in which the case member and the lid member are welded in the sealing device according to the third embodiment of the present invention. FIG. 10 is a side view showing an aspect in which the case member and the lid member are welded in the sealing device according to the fourth embodiment of the present invention. FIG. 11 is a side view showing an aspect in which the lid member is positioned in the can device according to the fifth embodiment of the present invention. FIG. 12 is an enlarged side view showing a retracting portion of the sealed can device according to the fifth embodiment of the present invention. FIG. 13 is a side view showing an aspect in which the lid member is positioned and welded to the case member in the sealed can device according to the sixth embodiment of the present invention. FIG. 14 is an enlarged side view showing a state in which the horizontal position of the lid member is displaced with respect to the case member. FIG. 15 is a side view showing a manner in which the lid member and the case member are fitted into the concave portion of the case member, and a manner in which the convex portion of the lid member is fitted into the case member. It is.

First Embodiment Hereinafter, a first embodiment of a sealed can apparatus according to the present invention will be described with reference to the drawings.
Here, FIG. 1 thru | or FIG. 5 (a)-(c) is a figure which shows the 1st Embodiment of this invention.

  The sealing can device of the present embodiment is used for welding a case member (one member) 61 and a lid member (other member) 62 placed on the case member 61 (see FIG. 1). In the present embodiment, the case member 61 is filled with the internal member 63. Examples of such sealed cans include secondary batteries and capacitors, but are not limited thereto, and may be pillar members, pipes, liquid crystal panels, and the like.

  As shown in FIG. 1, the sealing device contacts the holding portion 20 that holds and holds the case member 61, and a plurality of locations (six locations in the present embodiment) on the side surface of the lid member 62. A plurality of (six in this embodiment) positioning rollers (positioning portions) 10 (see FIG. 3) for positioning the member 62 in the horizontal direction and the positioning roller 10 positioned the lid member 62 in the horizontal direction. Later, a laser irradiation part (welding part) 30 is provided for applying energy by laser light L to the case member 61 and the lid member 62 for welding. Among these, the holding part 20 is composed of a pair of holding bodies 20a and 20b, and one holding body 20a is rotatable around the rotation pin 21 with respect to the other holding body 20b. Further, the laser irradiation unit 30 is connected to a laser moving unit 31 that moves the laser irradiation unit 30 in a horizontal direction (in the present embodiment, the normal direction of the paper surface shown in FIG. 1) on a straight line.

  Further, as shown in FIG. 2A, each positioning roller 10 has a rotation shaft 11 extending in the horizontal direction, and is rotatable about the rotation shaft 11. By the way, although this Embodiment demonstrates using the six positioning rollers 10, it is not restricted to this number. In the present embodiment, the positioning roller 10 is used as the positioning unit. However, the positioning roller 10 is not limited to this, and a member that slides on the lid member 62 may be used. And as a member which slides with respect to the cover member 62, as shown in FIG.2 (b), it is using the taper-shaped part 12 (12a, 12b) etc. which tapered in the direction which goes to the cover member 62. preferable. According to the tapered portion 12 and the like thus tapered, even when the lid member 62 is slightly displaced in the horizontal direction when the lid member 62 is positioned at a predetermined position in the horizontal direction, the lid member 62 is moved in the horizontal direction. This is because it can be guided to a predetermined position.

  Further, in the present embodiment, the laser light L is used to describe a mode in which the peripheral edge portion of the case member 61 and the peripheral edge portion of the lid member 62 are welded. However, the present invention is limited to this. Instead, for example, energy may be applied using electricity, gas, ultrasonic waves, or the like, and bonding may be performed. However, when the laser beam L is used, the welding location can be heated pinpointed, so that it is possible to prevent excessive heat from being applied to the internal member 63 and the like. Is preferable because it can be prevented from changing.

  As shown in FIG. 1, the sealing device supports the holding unit 20 from below and can rotate, and the same direction as the direction in which the lower rotating unit 45 b rotates (when viewed from above). And an upper rotating part 45a that can be rotated. Further, below the lower rotating part 45b, an elevating part 50 for moving the lower rotating part 45b in the vertical direction is provided, and the lower rotating part 45b is moved upward by the elevating part 50, so that the case member 61 and The lid member 62 is pushed upward.

  As shown in FIG. 1, a control unit 80 for controlling these is connected to the laser irradiation unit 30, each positioning roller 10, the lower rotation unit 45b, the upper rotation unit 45a, and the vertical movement unit 91 of the retracting unit 90 described later. Has been. Then, the controller 80 positions all of the positioning rollers 10 in the retracted position (the upper position in the present embodiment) before the case member 61 and the lid member 62 are welded by the laser light L of the laser irradiation unit 30. (See FIGS. 5A to 5C).

  Further, as shown in FIGS. 2A and 2B, the vertical positioning unit 40 is provided with a retreating unit 90 that retreats by moving the positioning roller 10 in the vertical direction. The retracting portion 90 is provided in the vertical positioning portion 40 and is connected to a vertical movement portion 91 having a shaft 91 a that can be expanded and contracted in the vertical direction with respect to the vertical positioning portion 40, and a shaft 91 a of the vertical movement portion 91. And a connecting portion 94 connected to the support member 43. The connecting portion 94 includes a horizontal extending portion 92 that extends in the horizontal direction and a vertical extending portion 93 that is provided at the end of the horizontal extending portion 92 and extends in the vertical direction. doing. Note that the shaft 91 a of the vertical movement portion 91 is connected to the approximate center of the vertical movement portion 91. The vertical extending portion 93 extends in a guide hole 49 provided in the vertical positioning portion 40 so as to extend in the vertical direction, and movement in the horizontal direction is restricted. Then, when the shaft 91a of the vertical movement portion 91 extends in the vertical direction with respect to the vertical positioning portion 40, the positioning roller 10 is positioned at the retracted position (the upper position in the present embodiment), and the axis of the vertical movement portion 91 is 91a contracts in the vertical direction with respect to the vertical positioning portion 40, whereby the positioning roller 10 is positioned at the lower position.

  Further, below the upper rotating part 45a, there is provided a vertical positioning part 40 that is rotated by the upper rotating part 45a and fixed in the vertical direction. In addition, the vertical positioning portion 40 is provided with a temporary fixing pin (contact portion) 41 that comes into contact with the lid member 62 from above before the positioning roller 10 positions the lid member 62 in the horizontal direction. The temporary fixing pin 41 is movable in the vertical direction (see FIG. 4).

  Further, two positioning rollers 10 are provided on the long side and one on the short side of the lid member 62 and the case member 61. Among these, the positioning roller 10b on one side of the long side (the left side in FIGS. 2A and 3) is provided on the support member 43 via a biasing member 42 such as a spring, and the other side (FIG. The positioning roller 10a of a) and the right side of FIG. 3 is fixed to the support member 43. On the other hand, the positioning roller 10b on one side of the short side (lower side in FIG. 3) is provided on the support member 43 via a biasing member 42 such as a spring, and the positioning roller 10a on the other side of the short side (upper side in FIG. 3). Is fixed to the support member 43. For this reason, the three positioning rollers 10b in contact with one side of the long side and one side of the short side are movable in the horizontal direction while receiving the urging force from the urging member 42, and the other side and the short side of the long side. The three positioning rollers 10a that come into contact with the other sides are fixed in the horizontal direction. The distance between the end surface on the lid member 62 side of the positioning roller 10 b provided on the support member 43 via the biasing member 42 and the end surface on the lid member 62 side of the positioning roller 10 a fixed to the support member 43. Is preferably set to be slightly smaller than the size (width) of the lid member 62 assumed in advance in the horizontal direction. In this regard, the interval between the end surface of the positioning roller 10b on the lid member 62 side and the end surface of the positioning roller 10a on the lid member 62 side may be adjustable by a not-shown interval adjusting mechanism.

  When the tapered portion 12 is used as the positioning portion as shown in FIG. 2B, the tapered portion 12b on one side of the long side (left side in FIG. 2B) is a biasing member such as a spring. The taper-shaped portion 12 a on the other side of the long side (the right side in FIG. 2B) is fixed to the support member 43. In addition, a taper-shaped portion 12 b on one side of the short side is provided on the support member 43 via a biasing member 42 such as a spring, and the taper-shaped portion 12 a on the other side of the short side is fixed to the support member 43.

  Next, the operation of the present embodiment having such a configuration will be described.

  First, when the holding body 20a of the holding part 20 is rotated, the case member 61 is held and held by the holding part 20 (see FIG. 1). Here, the case member 61 is filled with an internal member 63, and a lid member 62 is fitted from above the case member 61.

  Next, the lower rotating part 45b is moved upward by the elevating part 50, whereby the case member 61 and the lid member 62 are pushed upward (see FIG. 4A).

  Thus, when the case member 61 and the lid member 62 are pushed upward, the lid member 62 is first brought into contact with the lower surface of the temporary fixing pin 41 (see FIG. 4B). In addition, while the case member 61 and the lid member 62 are pushed upward, the lower surface of the temporary fixing pin 41 is moved upward in accordance with the movement of the lid member 62. By the way, the temporary fixing pin 41 is connected to a biasing member (not shown) such as a spring, and a downward biasing force is applied by the biasing member. This urging force is placed on the case member 61 and the case member 61 by the up-and-down positioning unit 40 and the lifting / lowering unit 50 and the pushing-up force that pushes the case member 61 and the lid member 62 upward by the lifting / lowering unit 50. It is smaller than the clamping force for clamping the lid member 62. Thus, since the lid member 62 is urged by the temporary fixing pin 41, when the lid member 62 comes into contact with the positioning roller 10, the lid member 62 jumps up and comes off from the case member 61, or can be positioned. It is possible to prevent the position of the lid member 62 from being displaced as much as possible.

  Next, the positioning roller 10 comes into contact with the side surface of the lid member 62, and the positioning roller 10 is positioned in the horizontal direction (see FIG. 4C). At this time, the horizontal position of the lid member 62 is determined by the positioning roller 10 a fixed to the support member 43. For this reason, the horizontal position of the lid member 62 can be accurately determined prior to the welding of the lid member 62 and the case member 61 by the laser beam L described later.

  Thereafter, the lid member 62 is brought into contact with the vertical positioning portion 40 fixed in the vertical direction, and the vertical gap between the peripheral edge portion of the lid member 62 and the peripheral edge portion of the case member 61 is closed (FIG. 4). (See (c)). As a result, the lid member 62 and the case member 61 positioned in the horizontal direction are sandwiched between the vertical positioning portion 40 and the holding portion 20 in the vertical direction. Here, since the vertical positioning portion 40 is fixed in the vertical direction, the boundary between the lid member 62 and the case member 61 can be accurately positioned at a certain height position. For this reason, the welding of the lid member 62 and the case member 61 with the laser beam L described later can be easily performed without adjusting the position of the irradiated laser beam L in the height direction.

  Next, when the signal from the control unit 80 is received and the shaft 91a of the vertical movement unit 91 extends in the vertical direction with respect to the vertical positioning unit 40, all of the positioning rollers 10 are moved to the retracted position (in this embodiment, the upper position). ) (Refer to FIG. 4D and FIG. 5A). FIG. 4D shows a mode in which the positioning roller 10 in the retracted position is moved to a position where it is completely separated from the lid member 62 and not in contact. In FIG. A mode in which a certain positioning roller 10 is in contact with the lid member 62 without completely separating from the lid member 62 is shown.

  Thereafter, upon receiving a signal from the control unit 80, the laser irradiation unit 30 irradiating the laser light L starts to be moved on a straight line by the laser moving unit 31. At this time, upon receiving a signal from the control unit 80, the laser beam L is irradiated from the laser irradiation unit 30, and the laser beam L welds between the peripheral edge of the case member 61 and the peripheral edge of the lid member 62. (See FIGS. 5A to 5C). When the object to be processed is changed from the short side to the long side or from the long side to the short side, the lower rotating part 45b and the upper rotating part 45a are rotated, and accordingly, the case member 61 and the lid member 62 are moved. It is rotated.

  According to the present embodiment, after positioning the lid member 62 in the horizontal direction by the positioning roller 10 as described above, the lid member 62 is sandwiched and fixed vertically, and energy is applied to the case member 61 and the lid member 62 by the laser light L. Will be welded. For this reason, the horizontal position of the lid member 62 with respect to the case member 61 can be made accurate, and welding defects and uneven welding for each member can be eliminated.

  In other words, the horizontal position of the lid member 62 may be displaced with respect to the case member 61. In such a case, if welding with the laser beam L is performed without positioning the lid member 62 in the horizontal direction. The laser beam L is not irradiated at the location where the lid member 62 protrudes (the location on the left side in FIG. 14). For this reason, the case member 61 and the lid member 62 are not welded (the welding becomes insufficient), and poor welding between the case member 61 and the lid member 62 and uneven welding for each member occur. However, according to the present embodiment, it is possible to prevent such a problem from occurring.

  In the present embodiment, before the positioning member 10 positions the lid member 62 in the horizontal direction, the lid member 62 is previously brought into contact with the lower surface of the temporary fixing pin 41 (see FIG. 4B). For this reason, when the lid member 62 contacts the positioning roller 10 (for example, when the horizontal position of the lid member 62 is greatly deviated), the lid member 62 is detached from the case member 61 or cannot be positioned. It is possible to prevent the position of the lid member 62 from being shifted as much as possible.

  In the above description, the case member 61 and the lid member 62 have a rectangular cross section. However, the cross section of the case member 61 and the lid member 62 is, for example, substantially rectangular. (Rectangle with rounded corners) or a substantially square shape such as a substantially square shape, or an oval or oval shape may be used.

  Moreover, in the above, the laser irradiation part 30 is moved on a straight line, and the case member 61 and the cover member 62 are rotated so that the peripheral part of the case member 61 and the peripheral part of the cover member 62 are welded. Although explained using, it is not restricted to this. For example, the laser irradiation unit 30 may move around the case member 61 and the lid member 62 so that the peripheral portion of the case member 61 and the peripheral portion of the lid member 62 are welded. While the position is fixed, the case member 61 and the lid member 62 may be moved in the horizontal direction so that the peripheral edge portion of the case member 61 and the peripheral edge portion of the lid member 62 are welded.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. 6 (a) to 6 (c) to FIG. In the first embodiment shown in FIG. 1 to FIG. 5A to FIG. 5C, the positioning roller 10 is completely welded before the case member 61 and the lid member 62 are welded by the laser beam L of the laser irradiation unit 30. In the second embodiment shown in FIGS. 6A to 6C, each of the positioning rollers 10 is placed in the case. Of the member 61 and the lid member 62, the portion located on the inner peripheral side with respect to the positioning roller 10 is positioned at the retracted position (the upper position in the present embodiment) when being welded by the laser light L from the laser irradiation unit 30. Even after the part is welded, it is positioned at the retracted position.

  In the present embodiment, a plurality of (six in this embodiment) support members 43 are provided, and each support member 43 is provided corresponding to each positioning roller 10. As shown in FIG. 8, the retracting portion 90 includes a plurality of (six in this embodiment) shafts 91 a that are provided in the vertical positioning portion 40 and can be expanded and contracted in the vertical direction with respect to the vertical positioning portion 40. And a plurality of (six in the present embodiment) vertically extending portions 93 connected to the shaft 91a of the vertically moving portion 91 and connected to the support member 43. . The vertical extending portion 93 extends in a guide hole 49 provided in the vertical positioning portion 40 so as to extend in the vertical direction, and movement in the horizontal direction is restricted. Then, when one shaft 91a of the vertical movement portion 91 contracts in the vertical direction with respect to the vertical positioning portion 40, the corresponding positioning roller 10 among the plurality of (six in this embodiment) positioning rollers 10 is retracted. A plurality of (six in this embodiment) are positioned at a position (upper position in the present embodiment), and one shaft 91a of the vertical movement portion 91 extends in the vertical direction with respect to the vertical positioning portion 40. The corresponding positioning roller 10 among the positioning rollers 10 is positioned at the lower position.

  Other configurations are substantially the same as those of the first embodiment shown in FIGS. 1 to 5A to 5C. In the second embodiment shown in FIGS. 6 (a)-(c) to FIG. 8, the same parts as those in the first embodiment shown in FIGS. 1 to 5 (a)-(c) are denoted by the same reference numerals. Detailed description will be omitted.

  According to the present embodiment, when the portion of the case member 61 and the lid member 62 located on the inner peripheral side with respect to the positioning roller 10 is welded by the laser light L from the laser irradiation unit 30, the control unit 80. In response to this signal, the shaft 91a of the vertical movement portion 91 contracts in the vertical direction with respect to the vertical positioning portion 40, whereby the corresponding positioning roller 10 is positioned at the upper position. And the positioning roller 10 positioned at the upper position remains positioned at the upper position even after the portion is welded (see FIGS. 6A to 6C).

  Therefore, according to the present embodiment, when the horizontal position of the lid member 62 with respect to the case member 61 may be shifted before welding, the horizontal position of the lid member 62 is fixed by the positioning roller 10. be able to. As a result, when the gap between the peripheral edge of the case member 61 and the peripheral edge of the lid member 62 is welded by the laser beam L, the horizontal position of the lid member 62 with respect to the case member 61 is erroneously shifted. As a result, poor welding and uneven welding for each member can be more reliably eliminated.

By the way, also in the present embodiment, the three positioning rollers 10b that come into contact with one side of the long side and one side of the short side can move in the horizontal direction while receiving the urging force from the urging member 42. For this reason, even if it is a case where the cover member 62 expand | swells with the heat resulting from the laser beam L, the three positioning rollers 10b can move to a horizontal direction suitably (refer Fig.7 (a) (b)).
As a result, it is possible to prevent an excessive pressing force from acting on the lid member 62 by the positioning roller 10.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS. In the first embodiment shown in FIG. 1 to FIG. 5A to FIG. 5C, the positioning roller 10 is completely welded before the case member 61 and the lid member 62 are welded by the laser beam L of the laser irradiation unit 30. In the third embodiment shown in FIGS. 9A to 9C, each of the positioning rollers 10 and the case member 61 are positioned at the retracted position (upward position in the present embodiment). When the portion of the lid member 62 located on the inner peripheral side with respect to the positioning roller 10 is welded by the laser light L from the laser irradiation unit 30, it is temporarily positioned at the retreat position (the upper position in the present embodiment). Is.

  In the present embodiment, as in the second embodiment, a plurality of (six in this embodiment) support members 43 are provided, and each support member 43 corresponds to each positioning roller 10. Is provided. The retracting unit 90 is provided in the vertical positioning unit 40 and has a plurality of (six in the present embodiment) shafts 91a that can be expanded and contracted in the vertical direction with respect to the vertical positioning unit 40, It has a plurality of (six in this embodiment) vertically extending portions 93 connected to the shaft 91a of the vertically moving portion 91 and connected to the support member 43. The vertical extending portion 93 extends in a guide hole 49 provided in the vertical positioning portion 40 so as to extend in the vertical direction, and movement in the horizontal direction is restricted. Then, when one shaft 91a of the vertical movement portion 91 contracts in the vertical direction with respect to the vertical positioning portion 40, the corresponding positioning roller 10 among the plurality of (six in this embodiment) positioning rollers 10 is retracted. A plurality of (six in this embodiment) are positioned at a position (upper position in the present embodiment), and one shaft 91a of the vertical movement portion 91 extends in the vertical direction with respect to the vertical positioning portion 40. The corresponding positioning roller 10 among the positioning rollers 10 is positioned at the lower position.

  Other configurations are substantially the same as those of the first embodiment shown in FIGS. 1 to 5A to 5C. In the third embodiment shown in FIGS. 9A to 9C, the same parts as those in the first embodiment shown in FIGS. 1 to 5A to 5C are denoted by the same reference numerals. Detailed description is omitted.

  According to the present embodiment, when the portion of the case member 61 and the lid member 62 located on the inner peripheral side with respect to the positioning roller 10 is welded by the laser light L from the laser irradiation unit 30, the control unit 80. When the shaft 91a of the vertical movement portion 91 is contracted in the vertical direction with respect to the vertical positioning portion 40 in response to the signal from, the corresponding positioning roller 10 is temporarily positioned at the upper position. When the welding of the part is completed, the shaft 91a of the vertical movement unit 91 extends in the vertical direction with respect to the vertical positioning unit 40 in response to a signal from the control unit 80, so that the positioning roller 10 positioned at the upper position. Is positioned in the lower position.

  For this reason, the positioning roller 10 can be positioned in the upper position only when welding is necessary, and the positioning roller 10 can be positioned in the lower position otherwise. As a result, when the gap between the peripheral edge of the case member 61 and the peripheral edge of the lid member 62 is welded by the laser beam L, the horizontal position of the lid member 62 with respect to the case member 61 is erroneously shifted. Can be prevented more reliably. Therefore, poor welding and uneven welding for each member can be more reliably eliminated.

  Also in the present embodiment, the three positioning rollers 10b that come into contact with one side of the long side and one side of the short side are movable in the horizontal direction while receiving the urging force from the urging member 42. For this reason, similarly to the second embodiment, even when the lid member 62 is expanded by the heat caused by the laser beam L, the three positioning rollers 10b can be moved in the horizontal direction as appropriate. As a result, it is possible to prevent an excessive pressing force from acting on the lid member 62 by the positioning roller 10.

Fourth Embodiment Next, a fourth embodiment of the present invention will be described with reference to FIGS. In the fourth embodiment shown in FIGS. 10A to 10C, the laser beam L from the laser irradiation unit 30 is positioned on the inner peripheral side of the case member 61 and the lid member 62 with respect to the positioning roller 10. A portion other than the portion to be welded (in this embodiment, a portion between the rollers 10 positioned on the long side) is welded, and then positioned on the inner peripheral side of the case member 61 and the lid member 62 with respect to the positioning roller 10. The parts to be welded are welded. At this time, after the portion between the positioning roller 10 positioned on the long side of the case member 61 and the lid member 62 is welded, the positioning roller 10 is positioned at the retracted position. In the present application, “the portion of the case member 61 and the lid member 62 other than the portion positioned on the inner peripheral side with respect to the positioning roller 10” refers to the positioning roller 10 that is not positioned at the retracted position (in this embodiment). This means a portion other than the portion where the positioning roller 10) located at the lower position is in contact with the case member 61 and the lid member 62, and the processing by the laser light L from the laser irradiation unit 30 is performed. This means a portion that is not obstructed by the positioning roller 10 that is not located at the retracted position.

  Other configurations are substantially the same as those of the first embodiment, the second embodiment, or the third embodiment. 10 (a)-(c), the first embodiment shown in FIGS. 1 to 5 (a)-(c) and FIGS. 6 (a)-(c) The same parts as those of the second embodiment shown in FIG. 8 and the third embodiment shown in FIGS. 9A to 9C are denoted by the same reference numerals, and detailed description thereof is omitted.

  According to the aspect of the present embodiment corresponding to the first embodiment, one of the case member 61 and the lid member 62 is lengthened by the laser light L from the laser irradiation unit 30 according to the signal from the control unit 80. After the portion between the rollers 10 located on the side is welded, all of the positioning rollers 10 are positioned at the retracted position. And after that, the part located in the inner peripheral side with respect to the positioning part among the case member 61 and the lid member 62 is welded.

  For this reason, when the horizontal position of the lid member 62 with respect to the case member 61 may be shifted before welding, the horizontal position of the lid member 62 can be fixed by the positioning roller 10. As a result, when the gap between the peripheral edge of the case member 61 and the peripheral edge of the lid member 62 is welded by the laser beam L, the horizontal position of the lid member 62 with respect to the case member 61 is erroneously shifted. As a result, poor welding and uneven welding for each member can be more reliably eliminated.

  Also in the present embodiment, the three positioning rollers 10b that are in contact with one side of the long side and one side of the short side are movable in the horizontal direction while receiving a biasing force from the biasing member 42. For this reason, similarly to the second embodiment, even when the lid member 62 is expanded by the heat caused by the laser beam L, the three positioning rollers 10b can be moved in the horizontal direction as appropriate. As a result, it is possible to prevent an excessive pressing force from acting on the lid member 62 by the positioning roller 10.

  By the way, when welding between the peripheral edge part of the case member 61 and the peripheral edge part of the cover member 62 with the laser beam L, the aspect which welds several points with a spot, without welding continuously may be sufficient. In this case, continuous welding is then performed with the laser beam L.

  In the above description, after the portion between the case member 61 and the cover member 62 between the rollers 10 positioned on the long side is welded, all of the positioning rollers 10 are positioned at the retracted position. In the above description, the portion of the lid member 62 located on the inner peripheral side with respect to the positioning roller 10 is welded. However, the present invention is not limited to this, and after the portions between the rollers 10 located on the two opposite long sides of the case member 61 and the lid member 62 are welded, all of the positioning rollers 10 are in the retracted position. After the portion between the roller 10 located on one short side of the case member 61 and the lid member 62 is welded, all of the positioning rollers 10 are positioned at the retracted position. Alternatively, all of the positioning rollers 10 may be positioned at the retracted position after the portions between the rollers 10 located on the two opposite short sides of the case member 61 and the lid member 62 are welded. . Further, after the case member 61 and the cover member 62 are welded to the portion between the two rollers 10 located on the two short sides facing the portion between the two rollers 10 located on the two long sides facing each other. Thus, all of the positioning rollers 10 may be positioned at the retracted position.

  In the above description, the mode corresponding to the first embodiment has been described. However, the present invention is not limited to this, and the positioning roller 10 is not limited to this, as in the second embodiment or the third embodiment. Each of the case member 61 and the lid member 62 may be positioned at the retreat position when the portion located on the inner peripheral side with respect to the positioning roller 10 is welded by the laser light L from the laser irradiation unit 30. . Each of the rollers 10 positioned in the retracted position in this way may be positioned in the retracted position even after the corresponding portion is welded as in the second embodiment, or in the third embodiment. You may make it position in an original position (downward position), after the applicable part is welded like this form.

Fifth Embodiment Next, a fifth embodiment of the present invention will be described with reference to FIGS. 11 (a) to 11 (c) and FIG. In the first to third embodiments shown in FIG. 1 to FIG. 10A to FIG. 10C, the positioning roller 10 is provided on the support member 43, but FIG. 11A to FIG. In the fifth embodiment shown in c) and FIG. 12, the positioning roller 10 is connected to the holding unit 20 and is configured to position the lid member 62 with reference to the holding unit 20.

  More specifically, in this embodiment, a plurality of (six in this embodiment) holding portions 20 are provided, and each holding portion 20 has a positioning roller 10 (10a, 10b) as shown in FIG. ) Is provided via the support member 43 and the retracting portion 90. The retracting portion 90 is provided on the holding portion 20 and has an extension / contraction drive portion 96 having a shaft 96a that can be extended / contracted with respect to the holding portion 20, and a support member 43 while being connected to the shaft 96a of the extension / contraction drive portion 96. And an extension part 98 connected to the guide part 97 and a guide part 97 for guiding the movement of the extension part 98. Then, in response to the signal from the control unit 80, the expansion / contraction driving unit 96 contracts with respect to the holding unit 20, whereby the positioning roller 10 is positioned at the retracted position (the lower position in the present embodiment), and the expansion / contraction driving unit When 96 extends with respect to the positioning roller 10, the positioning roller 10 is positioned at the upper position.

  Other configurations are substantially the same as those of the first to fourth embodiments. In the fifth embodiment shown in FIGS. 11 (a)-(c) and FIG. 12, the first embodiment shown in FIGS. 1 to 5 (a)-(c), FIG. 6 (a)-( c) to the second embodiment shown in FIG. 8, the third embodiment shown in FIGS. 9 (a)-(c), and the fourth embodiment shown in FIGS. 10 (a)-(c). The same parts as those in the embodiment are given the same reference numerals, and detailed description thereof is omitted.

  According to the present embodiment, the positioning roller 10 is connected to the holding unit 20, and the lid member 62 can be positioned using the holding unit 20 as a reference and, as a reference, the case member 61 held by the holding unit 20. . For this reason, the horizontal position of the lid member 62 with respect to the case member 61 can be positioned more accurately, so that poor welding and welding unevenness for each member can be more achieved (compared to the first to fourth embodiments). It can be surely lost.

  Further, the positioning roller 10 can be positioned at a retracted position (a lower position in the present embodiment). In this embodiment, as in the first embodiment, all of the positioning rollers 10 are retracted before the case member 61 and the lid member 62 are welded by the laser beam L of the laser irradiation unit 30 ( In the present embodiment, the positioning roller 10 may be positioned at a lower position), and each positioning roller 10 may be positioned on the inner peripheral side with respect to the positioning roller 10 out of the case member 61 and the lid member 62 as in the second embodiment. When the portion to be positioned is welded by the laser beam L from the laser irradiation unit 30, it may be positioned at the retracted position (the lower position in the present embodiment) and positioned at the retracted position even after the portion is welded. As in the third embodiment, each of the positioning rollers 10 is configured such that a portion of the case member 61 and the lid member 62 located on the inner peripheral side with respect to the positioning roller 10 is a laser beam L from the laser irradiation unit 30. Thus it may be located (lower position in this embodiment) temporarily retreat position when it is welded.

  Further, as in the fourth embodiment, the laser beam L from the laser irradiation unit 30 welds portions of the case member 61 and the lid member 62 other than the portion positioned on the inner peripheral side with respect to the positioning roller 10. Thereafter, a portion of the case member 61 and the lid member 62 located on the inner peripheral side with respect to the positioning portion may be welded. In this case, all of the positioning rollers 10 may be positioned at the retracted position as in the first embodiment, or the positioning rollers 10 as in the second embodiment or the third embodiment. 10 is positioned at a retracted position when a portion of the case member 61 and the lid member 62 located on the inner peripheral side with respect to the positioning roller 10 is welded by the laser light L from the laser irradiation unit 30. Also good. Each of the rollers 10 positioned in the retracted position in this way may be positioned in the retracted position even after the corresponding portion is welded as in the second embodiment, or in the third embodiment. You may make it position in the original position (upper position) after the applicable part is welded like the form of this.

Sixth Embodiment Next, a sixth embodiment of the present invention will be described with reference to FIGS. In the sixth embodiment, unlike the first embodiment to the fifth embodiment described above, as shown in FIGS. 13A to 13C, a plurality of rollers 10 are framed in the vertical direction. The casing members 61 and the lid member 62 are held by the entire frame bodies 71 and 72.

  Other configurations are substantially the same as those of the first to fifth embodiments. In the sixth embodiment shown in FIGS. 13 (a)-(c), the first embodiment shown in FIGS. 1 to 5 (a)-(c), and FIGS. 6 (a)-(c). The second embodiment shown in FIG. 8, the third embodiment shown in FIGS. 9 (a)-(c), the fourth embodiment shown in FIGS. 10 (a)-(c), and FIG. 11 (a)-(c) and the same parts as those of the fifth embodiment shown in FIG.

  In the embodiment shown in the present embodiment, for example, first, the case member 61 and the lid member 62 are accommodated in the frames 71 and 72 (see FIG. 13A), and the case member 61 and the lid member 62 are driven by the roller 10. Are simultaneously positioned. Thereafter, the lid member 62 is pressed by the upper contact portion 74 that moves downward (see FIG. 13B). Then, the case member 61 and the lid member 62 are moved upward by the elevating part 75 to fix the case member 61 and the lid member 62, and the joining surface is not shielded by the frame bodies 71 and 72, and then the case member While the 61 and the lid member 62 are rotated, the peripheral edge of the case member 61 and the peripheral edge of the lid member 62 are welded by the laser beam L (see FIG. 13C).

  The two frames 71 and 72 can be separated in the horizontal direction, and after the case member 61 and the lid member 62 are placed, the one frame 72 moves in the horizontal direction. The case member 61 and the lid member 62 may be held in 72 (see the dotted line arrow in FIG. 13A). According to such an aspect, a simple structure can be achieved without using an aspect in which the rollers 10 are individually retracted, and the positions of the case member 61 and the lid member 62 are also based on the frame bodies 71 and 72. be able to.

  13A to 13C, after the lid member 62 is pressed by the upper contact portion 74 that moves downward, the case member 61 and the lid member 62 are moved upward by the elevating portion 75. It is described using an aspect in which the joint surface is moved and is not shielded by the frames 71 and 72. However, the present invention is not limited to this, and while the upper contact portion 74 is fixed in the vertical direction, the case member 61 and the lid member 62 are moved upward by the elevating portion 75, and the joint surfaces are moved by the frame bodies 71 and 72. It may be in an unshielded state. In this case, it is preferable that a temporary fixing pin (see FIG. 4) is provided in the upper contact portion 74. In addition, according to such an aspect, the welding of the cover member 62 and the case member 61 by the laser beam L can be easily performed without adjusting the position of the irradiated laser beam L in the height direction. Is beneficial.

10, 10a, 10b Positioning roller (positioning part)
20 Holding part 30 Laser irradiation part (welding part)
40 Vertical positioning part 41 Temporary fixing pin (contact part)
42 Energizing member 45a Upper rotating part 45b Lower rotating part 50 Lifting part 61 Case member (one member)
62 Lid member (other members)
63 Internal member 75 Elevating part 80 Control part 90 Retraction part 91 Vertical movement part 92 Horizontal direction extension part 93 Vertical direction extension part 94 Connection part 96 Telescopic drive part 97 Guide part 98 Extension part L Laser beam

Claims (9)

In a sealed can apparatus for welding one member and another member placed on the one member,
A holding portion for holding the one member;
A plurality of positioning portions that contact a plurality of locations on the side surface of the other member to position the other member in a horizontal direction;
After the positioning of the other member in the horizontal direction by the positioning portion, a welding part that welds the one member and the other member by applying energy to the one member and the other member;
An elevating part that pushes up the one member and the other member placed on the one member;
A vertical positioning part fixed in the vertical direction and in contact with the other member on the one member;
A retracting portion for positioning the positioning portion at a retracted position;
A contact portion that contacts the other member from above before the positioning of the other member is performed by the positioning portion in the horizontal direction ;
The one member and the other member placed on the one member are pushed upward by the elevating part, and the other member is brought into contact with the vertical positioning part to be a peripheral part of the other member. And a portion positioned at least on the inner peripheral side of the positioning portion among the one member and the other member after the vertical space between the peripheral portion of the one member and the peripheral portion of the one member is filled. The sealing device, wherein the retracting portion positions the positioning portion at the retracted position before welding with the energy from the welded portion. A biasing member that applies a downward biasing force to the contact portion is coupled,
The urging force of the urging member is generated by the elevating unit by the one member and the push-up force that pushes up the other member placed on the one member, and the vertical positioning unit and the elevating unit. The can sealing device according to claim 1 , wherein the sealing force is smaller than a clamping force for clamping the one member and the other member placed on the one member. In a sealed can apparatus for welding one member and another member placed on the one member,
A holding portion for holding the one member;
A plurality of positioning portions that contact a plurality of locations on the side surface of the other member to position the other member in a horizontal direction;
After the positioning of the other member in the horizontal direction by the positioning portion, a welding part that welds the one member and the other member by applying energy to the one member and the other member;
An elevating part that pushes up the one member and the other member placed on the one member;
A vertical positioning part fixed in the vertical direction and in contact with the other member on the one member;
A retracting portion for positioning the positioning portion at the retracted position,
The one member and the other member placed on the one member are pushed upward by the elevating part, and the other member is brought into contact with the vertical positioning part to be a peripheral part of the other member. And a portion positioned at least on the inner peripheral side of the positioning portion among the one member and the other member after the vertical space between the peripheral portion of the one member and the peripheral portion of the one member is filled. Before being welded with energy from the welded portion, the retracting portion positions the positioning portion in the retracted position,
The welding portion welds a portion other than the portion located on the inner peripheral side with respect to the positioning portion among the one member and the other member,
The positioning portion is positioned at the retracted position after at least a part of the one member and the other member other than the portion positioned on the inner peripheral side with respect to the positioning portion is welded. A sealed can device. The save unit, sealing device according to any one of claims 1 to 3, characterized in that provided on the holding portion or the upper and lower positioning portions. All of the positioning unit, sealing according to any one of claims 1 to 3 wherein the one member and the other member is characterized in that it is positioned at the retreated position before being welded by the weld Can equipment. Each of the positioning portions is temporarily positioned at a retracted position when a portion of the one member and the other member located on the inner peripheral side of the positioning portion is welded by the welding portion. The sealing can apparatus according to any one of claims 1 to 3 . Each of the positioning portions is positioned at a retreat position when a portion of the one member and the other member that is located on the inner peripheral side with respect to the positioning portion is welded by the welding portion. The can device according to any one of claims 1 to 3, wherein the can device is positioned at a retracted position even after being welded. The positioning unit, coupled to said holding portion, sealing device according to any one of claims 1 to 7, characterized in that positioning said other member said holding unit as a reference. The can device according to any one of claims 1 to 8 , wherein at least one of the positioning portions is movable in a horizontal direction by an urging member.

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