JP2020064850A - Battery part assembly device - Google Patents

Abstract

To prevent a foreign matter from entering a battery.SOLUTION: A battery part assembly device 100 includes a chuck 102 that grips a lid of a battery case and a suction device 103. The chuck 102 includes a first member 121, a second member 122 facing the first member 121, and an operation mechanism 123. The first member 121 includes a first discharge passage 121b formed inside and a first dust collecting opening 121a on the side surface facing the second member 122, in which the first discharge passage 121b is opened. The second member 122 includes a second discharge passage 122b formed inside and a second dust collecting opening 122a on the side surface facing the first member 121, in which the second discharge passage 122b is opened. The first discharge passage 121b and the second discharge passage 122b are connected to the suction device 103.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a battery component assembling apparatus.

  For example, Japanese Unexamined Patent Application Publication No. 2016-105354 discloses a structure of a sealed battery. The sealed battery includes an electrode body, a case body that houses the electrode body, and a lid body that closes the case body. A positive electrode terminal and a negative electrode terminal are attached to the lid. A part of the positive electrode terminal and the negative electrode terminal extends into the case body and is connected to the electrode body.

JP, 2016-105354, A

  By the way, in the sealed battery as described above, foreign matter such as minute metal scraps generated in the assembly process may be generated. For example, when the positioning pin or the chuck is used in the assembly process, the metal scrap may be generated when the member to be assembled comes into contact with the positioning pin or the chuck. For the sealed battery as described above, it is desired to minimize foreign substances such as minute metal scraps generated in the assembly process from entering the battery case.

  The battery component assembling apparatus proposed here includes at least one of a positioning pin and a chuck, and a suction device. At least one member of the positioning pin and the chuck has a discharge passage formed inside and a dust collecting opening having a discharge passage opened on the outer peripheral surface. The discharge path is connected to the suction device. According to this battery component assembling apparatus, the positioning pin or the chuck is provided with the dust collecting port, and the positioning pin or the chuck sucks minute metal dust. Therefore, for example, it is possible to efficiently remove minute metal pieces that may be generated during the assembly work of the battery component due to contact with the positioning pin or the chuck.

  Here, when the positioning pin having the dust collecting port and the discharge path is provided, the dust collecting port may be opened at the tip of the positioning pin. Further, the dust collecting port may be opened on the outer peripheral surface of the positioning pin. In this case, the positioning pins can efficiently remove minute metal pieces that may be generated during the assembly work of the battery components.

  Moreover, the chuck may have a first member and a second member. It is preferable that the first member and the second member face each other and have a dust collecting port and a discharge path, respectively. It is preferable that the dust collecting port is opened on the opposite side surfaces of the first member and the second member. In this case, the chuck can efficiently remove minute metal pieces that may be generated during the assembly work of the battery components.

  The first member and the second member may have, for example, depressions in which the workpieces are housed, on opposite side surfaces. In this case, the dust collecting port may be opened in the depression. Further, at least one side of the depression may have a dust collecting port opened on the opposite side surface. Even in such a configuration, the chuck can efficiently remove minute metal pieces that may be generated during the assembly work of the battery components.

  The battery component assembling apparatus may include, for example, a chuck that holds the lid of the battery case, and a suction device. The chuck may include a first member, a second member facing the first member, and an operation mechanism that operates the first member and the second member. The first member may have a first discharge passage formed inside and a first dust collecting port on the side surface facing the second member, the first dust collection opening having the first discharge passage opened. The second member may have a second discharge passage formed inside and a second dust collecting port having a second discharge passage opened on a side surface facing the first member. The first discharge passage and the second discharge passage may be connected to a suction device.

  The first member may have a first recess on a side surface facing the second member, in which a lid body to be gripped by a chuck is accommodated. The first dust collecting port may be opened in the first recess on the side surface facing the second member. The second member may have a second recess on the side surface facing the first member, in which the lid body held by the chuck is accommodated. The second dust collecting port may be opened in the second recess on the side surface facing the first member.

  The first member may further have a dust collection port that is open to the tip side of the first recess on the side surface facing the second member. The second member may further include a dust collection port that is open to the tip side of the second recess on the side surface facing the first member.

  In addition, the first member may have a first recess on a side surface facing the second member, in which a lid body held by a chuck can be accommodated. The first dust collecting port may be opened on the tip side of the first recess on the side surface facing the second member. The second member may have a second recess on the side surface facing the first member, in which the lid body held by the chuck is accommodated. The second dust collecting port may be opened on the tip side of the second recess on the side surface facing the first member.

FIG. 1 is a partial cross-sectional view of the sealed battery 10. FIG. 2 is a cross-sectional view of a portion of the lid body 11b to which the negative electrode terminal 15 is attached. FIG. 3 is an exploded perspective view of the lid 11b, the positive electrode terminal 14, and the negative electrode terminal 15. FIG. 4 is a perspective view of the battery component assembling apparatus 100. FIG. 5 is a side view of the positioning pin 101. FIG. 6 is a side view of the positioning pin 101. FIG. 7 is a side view of the chuck 102. FIG. 8 is a side view of the chuck 102. FIG. 9 is a side view of the chuck 102.

  An embodiment of the battery component assembling apparatus proposed here will be described below. The embodiments described herein are, of course, not intended to specifically limit the invention. The invention is not limited to the embodiments described herein unless otherwise stated. In addition, each drawing is a schematic view and does not necessarily reflect an actual implementation product faithfully.

  FIG. 1 is a partial cross-sectional view of the sealed battery 10. FIG. 2 is a cross-sectional view of a portion of the lid body 11b to which the negative electrode terminal 15 is attached. FIG. 3 is an exploded perspective view of the lid 11b, the positive electrode terminal 14, and the negative electrode terminal 15. Here, in FIG. 1, the interior is exposed along the wide surface on one side of the substantially rectangular battery case 11. FIG. 2 shows a cross section of the portion of the lid 11b to which the negative electrode terminal 15 is attached, which is taken along the long side at an intermediate position in the short side direction of the lid 11b.

  As shown in FIG. 1, the sealed battery 10 includes a battery case 11, insulating materials 12 and 13, a positive electrode terminal 14, a negative electrode terminal 15, and an electrode body 16. The battery component assembling apparatus 100 proposed here is used, for example, in a process of assembling the positive electrode terminal 14 and the negative electrode terminal 15 on the lid 11b of the battery case 11.

  Here, as shown in FIG. 1, the positive electrode terminal 14 and the negative electrode terminal 15 are attached to the battery case 11 via the insulating materials 12 and 13. The battery case 11 contains an electrode body 16 and an electrolytic solution (not shown). The electrode body 16 is housed in the battery case 11 while being covered with an insulating film (not shown) or the like. Therefore, it is insulated from the battery case 11. The electrode body 16 includes the positive electrode element, the negative electrode element, and the separator of the sealed battery 10.

  In this embodiment, the electrode body 16 includes a positive electrode sheet 21 as a positive electrode element, a negative electrode sheet 22 as a negative electrode element, and separator sheets 31 and 32 as separators. The positive electrode sheet 21, the first separator sheet 31, the negative electrode sheet 22, and the second separator sheet 32 are long strip-shaped members.

  The positive electrode sheet 21 is a positive electrode current collector foil 21a (for example, an aluminum foil) having a predetermined width and thickness, except for an unformed portion 21a1 set at one end in the width direction with a constant width, A positive electrode active material layer 21b containing a positive electrode active material is formed on both surfaces. The positive electrode active material is, for example, in a lithium ion secondary battery, a material capable of releasing lithium ions during charging and absorbing lithium ions during discharging, such as a lithium transition metal composite material. Various positive electrode active materials are generally proposed in addition to the lithium-transition metal composite material, and are not particularly limited.

  The negative electrode sheet 22 is a negative electrode current collector foil 22a (here, a copper foil) having a predetermined width and thickness, except for an unformed portion 22a1 set to have a constant width at one side edge in the width direction, Negative electrode active material layers 22b containing a negative electrode active material are formed on both surfaces. For example, in a lithium ion secondary battery, the negative electrode active material is a material capable of occluding lithium ions during charging and releasing the lithium ions occluded during charging during discharging, like natural graphite. Various negative electrode active materials have been generally proposed other than natural graphite, and are not particularly limited.

  For the separator sheets 31 and 32, for example, a porous resin sheet through which an electrolyte having a required heat resistance can pass is used. Various types of separator sheets 31 and 32 have been proposed and are not particularly limited.

  Here, the width of the negative electrode active material layer 22b is wider than that of the positive electrode active material layer 21b, for example. The width of the separator sheets 31 and 32 is wider than that of the negative electrode active material layer 22b. The unformed portion 21a1 of the positive electrode current collector foil 21a and the unformed portion 22a1 of the negative electrode current collector foil 22a are directed to opposite sides in the width direction. In addition, the positive electrode sheet 21, the first separator sheet 31, the negative electrode sheet 22, and the second separator sheet 32 are aligned in the length direction, and are sequentially stacked and wound. The negative electrode active material layer 22b covers the positive electrode active material layer 21b with the separator sheets 31 and 32 interposed. The negative electrode active material layer 22b is covered with the separator sheets 31 and 32. The unformed portion 21a1 of the positive electrode current collector foil 21a is projected to one side of the separator sheets 31 and 32 in the width direction. The unformed portion 22a1 of the negative electrode current collector foil 22a protrudes from the separator sheets 31 and 32 on the opposite side in the width direction.

  In the example shown in FIG. 1, a so-called wound electrode body 16 is illustrated. The electrode body 16 is not limited to this. The electrode body 16 may be a so-called laminated type electrode body. In the production of the laminated electrode body, a predetermined number of positive electrode sheets, negative electrode sheets, and separator sheets each having a predetermined shape are prepared. Then, the positive electrode sheets and the negative electrode sheets are alternately laminated while interposing the separator sheets.

  In this embodiment, the battery case 11 has a flat rectangular housing area, and includes a case body 11a and a lid 11b. The case main body 11a has a flat, substantially rectangular parallelepiped container shape, and one surface including long sides and short sides is open. The lid 11b is a plate-like member that has a shape corresponding to the opening of the case body 11a and is attached to the opening. A positive electrode terminal 14 and a negative electrode terminal 15 are attached to both sides of the lid 11b in the longitudinal direction. As shown in FIG. 1, the electrode body 16 described above is in a flat state along a plane including the winding axis so that it can be housed in the case body 11a of the battery case 11. Then, along the winding axis of the electrode body 16, the unformed portion 21a1 of the positive electrode current collector foil 21a is arranged on one side and the unformed portion 22a1 of the negative electrode current collector foil 22a is arranged on the opposite side. The unformed portion 21a1 of the positive electrode current collector foil 21a is welded to the attachment piece 14a of the positive electrode terminal 14 extending into the battery case 11. The unformed portion 22a1 of the negative electrode current collector foil 22a is welded to the attachment piece 15a of the negative electrode terminal 15 extending into the battery case 11.

  In this embodiment, mounting holes 11c for mounting the positive electrode terminal 14 and the negative electrode terminal 15 are formed on both sides of the lid 11b in the longitudinal direction. As shown in FIG. 2, a protrusion 11c1 is provided on the edge of the mounting hole 11c.

  As shown in FIGS. 2 and 3, the positive electrode terminal 14 and the negative electrode terminal 15 are provided with a first terminal 41, a second terminal 42, and a connection terminal 43, respectively, and a lid body with insulating materials 12 and 13 interposed therebetween. It is attached to 11b. In this embodiment, the first terminal 41 is a terminal mounted on the lid 11b from the inside. The second terminal 42 is a terminal attached to the lid 11b from the outside. A material that can withstand the required potential is used on the positive electrode side and the negative electrode side. Therefore, for the first terminal 41, the second terminal 42, and the connection terminal 43 of the positive electrode, for example, aluminum or aluminum alloy is used. For the first terminal 41, the second terminal 42, and the connection terminal 43 of the negative electrode, for example, copper or a copper alloy is used.

Here, the insulating materials 12 and 13 are mounted around the mounting hole 11c.
The first insulating material 12 is arranged inside the lid 11b and insulates the lid 11b from the first terminal 41. In this embodiment, the first insulating material 12 is made of a resin member having a required elasticity. In this embodiment, the first insulating material 12 is made of fluororesin. The first insulating material 12 is also called a gasket. The sealing property of the mounting hole 11c of the lid 11b is ensured by the first insulating material 12. In this embodiment, as shown in FIG. 2, the first insulating material 12 has a base portion 12a, a tubular portion 12b, and a receiving portion 12c. The base portion 12a is a flat plate-shaped portion mounted on the inner surface of the lid body 11b. The cylindrical portion 12b is a portion that protrudes from the base portion 12a and is attached to the inner peripheral surface of the mounting hole 11c of the lid body 11b. The tubular portion 12b has an inner diameter corresponding to the outer diameter of the shaft portion 41c so that a shaft portion 41c provided in the first terminal 41 described later can be inserted. The receiving portion 12c is provided on the lower surface of the first insulating material 12. The receiving portion 12c has a recess having a shape corresponding to the base portion 41a of the first terminal 41.

  The second insulating material 13 is a member that is arranged outside the lid 11b and insulates the lid 11b from the second terminal 42 and the connection terminal 43. In this embodiment, the second insulating material 13 is made of a resin member (polyamide resin in this embodiment) and is also called an insulator. In this embodiment, a convex portion 13a is provided on the lower surface of the second insulating material 13 so as to be mounted in the recess 11b1 of the lid 11b, as shown in FIG. The upper surface of the second insulating material 13 is provided with a recess 13b in which the negative connection terminal 43 is arranged and a recess 13c in which the first terminal 41 is mounted. In addition, a through hole 13d is formed in the recess 13c in which the first terminal 41 is mounted, at a position corresponding to the mounting hole 11c formed in the lid 11b. The through hole 13d has an inner diameter corresponding to the outer diameter of the shaft portion 41c so that the shaft portion 41c provided in the first terminal 41 described later can be inserted.

  The first terminal 41 is stacked on the opposite side (in this embodiment, the inside) of the battery case 11 with the first insulating material 12 interposed. As shown in FIGS. 1 and 2, the first terminal 41 has a base portion 41a and a shaft portion 41c. Of these, the base portion 41 a is attached to the lid body 11 b via the first insulating material 12. The attachment piece 14a of the positive electrode terminal 14 and the attachment piece 15a of the negative electrode terminal 15 described above are provided on the base portion 41a of the first terminal 41, respectively.

  The connection terminal 43 has a collar portion 43a and a shaft portion 43b. The flange portion 43a is positioned and mounted in the recess 13b provided in the second insulating material 13 arranged outside the lid body 11b. Therefore, it is preferable that the collar portion 43a and the depression 13b have almost the same shape. The shaft portion 43b is a portion that serves as an external output terminal, and is, for example, a portion to which a bus bar is attached when configuring a battery pack.

  As shown in FIG. 2, the second terminal 42 is stacked on one side (in this embodiment, the outside) of the battery case 11 with the second insulating material 13 interposed. FIG. 3 is a perspective view of the second terminal 42. In this embodiment, the second terminal 42 is a member that is arranged on the second insulating material 13 arranged outside the lid 11b and holds the connection terminal 43. The second terminal 42 is a plate-shaped member arranged along the longitudinal direction of the lid body 11b, as shown in FIG. A step 42 a is provided in the middle portion of the second terminal 42 in the longitudinal direction. A mounting hole 42b to be mounted on the shaft portion 43b of the connection terminal 43 is formed on one side of the step 42a. An insertion hole 42c into which the shaft portion 41c of the first terminal 41 is inserted is formed on the opposite side. The insertion hole 42c is formed at a position corresponding to the through hole 13d of the second insulating material 13 when the insertion hole 42c is arranged in the second insulating material 13.

  The shaft portion 41c of the first terminal 41 is inserted through the attachment hole 11c of the lid 11b and the insertion hole 42c of the second terminal 42. In this embodiment, the tubular portion 12b of the first insulating material 12 is attached to the mounting hole 11c of the lid 11b. The shaft portion 41c of the first terminal 41 is inserted inside the tubular portion 12b. The shaft portion 41c of the first terminal 41 is further inserted into the through hole 13d of the second insulating material 13 and the insertion hole 42c of the second terminal 42 arranged on the second insulating material 13. Although illustration is omitted, the first terminal 41 and the second terminal 42 are sandwiched by the pair of pressurizing portions of the pressing device. As a result, the lid 11b, the first insulating material 12, the second insulating material 13, the first terminal 41, and the second terminal 42 come into close contact with each other. At this time, as shown in FIG. 2, the first insulating material 12 (gasket) inside the lid 11b bites into the protrusion 11c1 provided on the edge of the mounting hole 11c of the lid 11b. This ensures a high sealing property around the mounting hole 11c of the lid 11b. Further, the tip end 41c1 of the shaft portion 41c is crushed and plastically deformed, and is crimped around the insertion hole 42c on the outer side of the second terminal 42.

  As described above, in the assembling work of the battery case, the positive electrode terminal 14 and the negative electrode terminal 15 are attached to the lid body 11b. Next, the electrode body 16 is attached to the attachment piece 14 a of the positive electrode terminal 14 and the attachment piece 15 a of the negative electrode terminal 15. The electrode body 16 attached to the lid body 11b is housed in the case body 11a. Then, the lid 11b is attached to the opening of the case body 11a, and the case body 11a is closed.

  The battery component assembling apparatus 100 proposed here is used, for example, in the step of attaching the positive electrode terminal 14 and the negative electrode terminal 15 to the lid 11b. Hereinafter, the battery component assembling apparatus proposed here will be described based on the steps of attaching the positive electrode terminal 14 and the negative electrode terminal 15 to the lid 11b.

  In this embodiment, the case body 11a has a rectangular parallelepiped shape with one side surface opened. The lid 11b is a plate-shaped member that is mounted in the opening of the case body 11a. The lid 11b has a mounting hole penetrating to a predetermined position, such as a position where the terminal is mounted as described above. In the step of attaching the positive electrode terminal 14 and the negative electrode terminal 15 to the lid body 11b, the shaft portion 41c of the first terminal 41 constituting the positive electrode terminal 14 and the negative electrode terminal 15 is inserted into the attachment hole 11c provided in the lid body 11b. It

  FIG. 4 is a perspective view of the battery component assembling apparatus 100. In this embodiment, the battery component assembling apparatus 100 includes a positioning pin 101, a chuck 102, and a suction device 103. 5 and 6 are side views of the positioning pin 101. FIG. 5 shows a state before the positioning pin 101 is inserted into the attachment hole 11c of the lid 11b, and FIG. 6 shows a state after the insertion. 7 to 9 are side views of the chuck 102. FIG. 7 illustrates a state before the chuck 102 holds the lid 11b, and FIG. 8 illustrates a state after the chuck 102 holds the lid 11b. FIG. 9 shows a state in which the terminals are attached to the lid body 11b held by the chuck 102.

  As shown in FIG. 4, the positioning pin 101 is a shaft member that is inserted into a mounting hole 11c provided in the lid 11b. In this embodiment, the lid body 11b is provided with mounting holes 11c at two locations separated from each other in the longitudinal direction. Two positioning pins 101 are provided corresponding to the mounting holes 11c.

  As shown in FIG. 5, the positioning pin 101 has a discharge path 101a and a dust collection port 101b. The discharge path 101a is formed inside the positioning pin 101. In this embodiment, a cavity serving as the discharge path 101a is formed inside the positioning pin 101. The discharge path 101a is connected to the suction device 103. The dust collecting port 101b is an opening of the discharge path 101a and is formed on the outer peripheral surface of the positioning pin 101. In this embodiment, the dust collection port 101b is formed on the tip end of the positioning pin 101 and the outer peripheral surface, respectively. On the outer peripheral surface of the positioning pin 101, a plurality of dust collecting ports 101b may be formed in the circumferential direction. At least one dust collecting port 101b may be formed on the outer peripheral surface, and preferably two or more, for example, three or four, are formed. In this embodiment, four dust collecting ports 101b are evenly arranged in the circumferential direction on the outer peripheral surface of the positioning pin 101. Further, the discharge passage 101a is connected to the suction device 103 at the base end portion of the positioning pin 101. The suction device 103 can be configured by, for example, a pump. The suction device 103 sucks air from the discharge passage 101a, and thus sucks air from the dust collecting port 101b.

  As shown in FIG. 4, the chuck 102 is a member for gripping the lid 11b. In this embodiment, the chuck 102 has a first member 121, a second member 122, and an operating mechanism 123 that sandwich the lid 11b. The first member 121 and the second member 122 face each other as shown in FIG. 7. The first member 121 and the second member 122 include dust collecting ports 121a and 122a and discharge paths 121b and 122b, respectively. The discharge paths 121b and 122b are formed inside the first member 121 and the second member 122. In this embodiment, cavities serving as the discharge paths 121b and 122b of the first member 121 and the second member 122 are formed. The dust collecting ports 121a and 122a are openings of the discharge paths 121b and 122b, and are formed on the outer peripheral surfaces of the first member 121 and the second member 122. In this embodiment, the dust collection ports 121a and 122a are opened on the opposite side surfaces of the first member 121 and the second member 122.

  In this embodiment, the first member 121 and the second member 122 have cavities 121c and 122c in which the lid 11b is housed, on opposite side surfaces. The dust collecting openings 121a and 122a are opened at the bottoms of the depressions 121c and 122c. Further, in this embodiment, the other dust collecting ports 121a and 122a are opened also on the opposite side surfaces of the first member 121 and the second member 122 on the tip side with respect to the depressions 121c and 122c. As described above, the first member 121 and the second member 122 of the chuck 102 have the dust collecting ports 121a and 122a opened at the opposite side surfaces on at least one side of the depressions 121c and 122c in which the lid 11b to be gripped is housed. Good.

  The first member 121 and the second member 122 are operated by the operation mechanism 123. Although illustration is omitted, the operation mechanism 123 includes a holding portion that holds the first member 121 and the second member 122, an opening / closing mechanism that opens and closes the first member 121 and the second member 122, and a suction device. The pipe from 103 is distributed, and the distribution pipe which connects to the discharge passages 121 b and 122 b of the first member 121 and the second member 122 is provided. In addition, in FIG. 4, the pipes 103a to 103c from the suction device 103 are indicated by broken lines. The pipes 103a to 103c are connected to the discharge passage 101a of the positioning pin 101 and the discharge passages 121b and 122b of the chuck 102, respectively.

  When the lid 11b is picked up, the battery component assembling apparatus 100 positions the first member 121 and the second member 122 of the chuck 102 at the intermediate portion in the longitudinal direction of the lid 11b as shown in FIG. To match. Further, the positioning pin 101 is arranged at a predetermined position with respect to the mounting holes 11c formed at two positions separated from each other in the longitudinal direction of the lid body 11b. Then, as shown in FIG. 8, the middle portion of the lid 11b is gripped by the first member 121 and the second member 122 of the chuck 102. Then, as shown in FIG. 6, the positioning pin 101 is inserted into the mounting holes 11c formed at two positions separated in the longitudinal direction of the lid body 11b. As a result, the positions of the mounting holes 11c formed at two positions separated from each other in the longitudinal direction of the lid body 11b are determined. As described above, the cylindrical portion 12b of the first insulating material 12 and the shaft portion 41c of the first terminal 41 of the positive electrode terminal 14 and the negative electrode terminal 15 are inserted into the mounting hole 11c of the lid body 11b. At this time, the position of the mounting hole 11c of the lid 11b is determined by the positioning pin 101. Further, the cylindrical portion 12b of the first insulating material 12 and the shaft portion 41c of the first terminal 41 of the positive electrode terminal 14 and the negative electrode terminal 15 are guided by the positioning pin 101. Therefore, the tubular portion 12b of the first insulating material 12 and the shaft portion 41c of the first terminal 41 of the positive electrode terminal 14 and the negative electrode terminal 15 are easily inserted into the mounting hole 11c of the lid 11b.

  In this embodiment, as shown in FIG. 5, dust collecting ports 101b are formed on the tip end portion and the outer peripheral surface of the positioning pin 101, respectively. Therefore, as shown in FIG. 6, when the positioning pin 101 is inserted into the mounting hole 11c of the lid body 11b, dust attached around the mounting hole 11c can be removed. For example, when the positioning pin 101 is inserted into the mounting hole 11c, the dust collecting port 101b formed at the tip of the positioning pin 101 sucks foreign matter adhering to the peripheral portion of the mounting hole 11c or the mounting hole 11c. . Further, even if metal dust is generated when the positioning pin 101 comes into contact with the mounting hole 11c, it can be removed by the dust collecting port 101b formed on the outer peripheral surface of the positioning pin 101.

  For example, the lid body 11b is made of aluminum and may be slightly scraped when it comes into contact with the positioning pin 101. Further, the surface of the positioning pin 101 may be finely scraped by being repeatedly used. The positioning pin 101 has a dust collecting port 101b on the outer peripheral surface (the tip and the outer peripheral surface in this embodiment). The dust collecting port 101b immediately sucks the metal waste generated during the assembly.

  In this embodiment, the dust collection port 101b is formed on both the tip portion and the outer peripheral surface of the positioning pin 101. The part where the dust collecting port 101b is formed is not limited to this form. For example, the dust collecting port 101b may be formed only on the tip of the positioning pin 101, or may be formed only on the outer peripheral surface of the positioning pin 101.

  Further, in this embodiment, as shown in FIG. 7, the chuck 102 has a first member 121 and a second member 122 that sandwich the lid 11b. The first member 121 and the second member 122 face each other. The first member 121 and the second member 122 include dust collecting ports 121a and 122a and discharge paths 121b and 122b, respectively. The dust collecting ports 121a and 122a are opened on the opposite side surfaces of the first member 121 and the second member 122. The first member 121 and the second member 122 have cavities 121c and 122c in which the lid 11b is housed, on opposite side surfaces. The dust collecting ports 121a and 122a are preferably formed on at least one side of the depressions 121c and 122c and the depressions 121c and 122c. In this embodiment, dust collecting ports 121a and 122a are formed on the bottoms of the depressions 121c and 122c and on the side surfaces of the first member 121 and the second member 122 that face the tip side of the depressions 121c and 122c. There is.

  Since the dust collecting ports 121a and 122a are formed on the opposite side surfaces of the first member 121 and the second member 122 of the chuck 102, when the chuck 102 sandwiches the lid body 11b, foreign matter attached to the lid body 11b is removed. Can be removed. Further, as shown in FIG. 8, dust collecting ports 121a and 122a are formed in depressions 121c and 122c in which the lid 11b is housed in the first member 121 and the second member 122, respectively. Since the dust collection ports 121a and 122a are formed in the depressions 121c and 122c, even if metal scraps are generated when the chuck 102 grips the lid body 11b, the dust can be immediately removed. Further, as shown in FIG. 9, dust collecting ports 121a and 122a are formed on the opposite side surfaces of the first member 121 and the second member 122 on the tip side with respect to the depressions 121c and 122c. With the dust collecting ports 121a and 122a, foreign matter can be removed also from the lower surface (inner side surface) of the lid 11b. For example, a minute foreign substance generated when the first terminal 41 is attached to the lid 11b can be sucked from the lower surface of the lid 11b.

  In this embodiment, the lid 11b is made of aluminum, and when it is gripped by the chuck 102, it may be slightly scraped due to contact with the chuck 102. Further, the surface of the chuck 102 may be finely scraped by being repeatedly used. The chuck 102 has dust collecting ports 121a and 122a on its outer peripheral surface. Therefore, it is possible to immediately suck the metal scrap generated during the assembly.

  In this way, the positioning pin 101 and the chuck 102 can immediately suck metal scraps generated during assembly. For example, it is difficult for metal scraps generated in the parts assembled by the positioning pin 101 and the chuck 102 to be attached to the positioning pin 101 or the chuck 102 or to be sandwiched between the positioning pin 101 or the chuck 102 and the work. . Further, it is difficult for the metal scrap generated in the component assembled by the positioning pin 101 and the chuck 102 to enter as a foreign substance in another component assembled in the next process. As described above, according to the battery component assembling apparatus 100 proposed here, since the positioning pins 101 and the chuck 102 are provided with the dust collecting ports 101b, 121a, 122a, foreign matter is unlikely to be mixed into the assembled battery. . Further, the battery component assembling apparatus 100 proposed here is provided with the dust collecting ports 101b, 121a, 122a on the positioning pin 101 and the chuck 102, so that, for example, in comparison with an air blow cleaning method in which air is blown onto the work. However, the generated foreign matter can be prevented from scattering.

  Here, the dust collection port 101b of the positioning pin 101 and the dust collection ports 121a and 122a of the chuck 102 may be adjusted in wind speed at the time of suction so that, for example, metal dust can be appropriately sucked. For example, in assembling a battery, it is preferable that the suction force is adjusted so that even minute metal scraps of 100 μm can be sucked. According to the knowledge of the present inventor, the wind speed near the entrances of the dust collecting port 101b of the positioning pin 101 and the dust collecting ports 121a and 122a of the chuck 102 is preferably about 7 m / s or more. According to a test by the present inventor, by setting the wind speed near the inlets of the dust collecting port 101b of the positioning pin 101 and the dust collecting ports 121a and 122a of the chuck 102 to 7 m / s or more, an extremely small amount such as 100 μm is obtained. It was possible to remove all metal debris. Further, by providing the dust collecting port 101b of the positioning pin 101 and the dust collecting ports 121a and 122a of the chuck 102, a liquid (here, water) is sprayed on the assembled work to wash it. In addition, the effect of removing foreign matter was obtained.

  The structure of the chuck 102 is not limited to such a structure. For example, the target that the chuck 102 grips is the lid 11b, but the target that the chuck 102 grips is not limited to the lid 11b. For example, the first terminal 41 or the second terminal 42 attached to the lid 11b may be used. Hereinafter, in the present specification, an object gripped by the chuck 102 is referred to as a work. In this embodiment, the chuck 102 discloses a first member 121 and a second member 122 for gripping a work. The structure of the chuck 102 is not limited to this. For example, the chuck 102 may include three or more members as members that grip the work. In this case, it is preferable that the discharge passage and the dust collection port are formed in at least one of the members that grip the work. Further, in the above-described embodiment, the first member 121 and the second member 122 for gripping the work are provided with the depressions 121c and 122c, respectively. The member of the chuck 102 that holds the work may have a function of holding the work, and the recesses 121c and 122c may not necessarily be provided. Further, the positions where the dust collecting ports 121a and 122a are provided may also be arranged at positions suitable for removing dust adhering to the work when the chuck 102 grips the work. Therefore, unless otherwise specified, the examples shown in the above-described embodiments are not limited.

  Although various explanations have been given of the battery component assembling apparatus proposed here, the embodiments and examples given here do not limit the present invention unless otherwise mentioned.

10 Sealed Battery 11 Battery Case 11a Case Body 11b Lid 11c Mounting Hole 14 Positive Electrode Terminal 15 Negative Terminal 16 Electrode 41 First Terminal 41a Base 41c Shaft 41c1 Shaft 41c Tip 42 Second Terminal 42a Step 42b Mounting Hole 42c Insertion hole 43 Connection terminal 43a Collar part 43b Shaft part 100 Assembly device 101 Pin 101a Discharge path 101b Dust collection port 102 Chuck 103 Suction machine 121 First member 121a, 122a Dust collection port 121b, 122b Discharge path 121c, 122c Dip 122 Second Member 123 operation mechanism

Claims (4)

A chuck that holds the lid of the battery case,
Equipped with a suction machine,
The chuck is
A first member, a second member facing the first member, and an operation mechanism for operating the first member and the second member,
The first member is
A first discharge passage formed inside,
A side surface facing the second member has a first dust collecting opening in which the first discharge passage is opened,
The second member is
A second discharge passage formed inside,
A side surface facing the first member has a second dust collecting opening in which the second discharge passage is opened,
The first discharge path and the second discharge path are
Connected to the suction machine,
Assembly equipment for battery parts. The first member is
The side surface facing the second member has a first recess in which the lid body held by the chuck is housed,
The first dust collecting port is open to the first recess on the side surface facing the second member,
The second member is
A second recess for accommodating a lid body to be gripped by the chuck, on a side surface facing the first member,
The second dust collecting port is open to the second recess on the side surface facing the first member,
An apparatus for assembling a battery component according to claim 1. The first member is
The side surface facing the second member further has a dust collection opening that is open to the tip side with respect to the first recess,
The second member is
A dust collection port that is open to the tip side of the second recess on the side surface facing the first member;
An apparatus for assembling a battery component according to claim 2. The first member is
The side surface facing the second member has a first recess in which the lid body held by the chuck is housed,
The first dust collecting port is open on the tip side of the first recess on the side surface facing the second member,
The second member is
A second recess for accommodating a lid body to be gripped by the chuck, on a side surface facing the first member,
The second dust collecting port is open on the tip side of the second recess on the side surface facing the first member.
An apparatus for assembling a battery component according to claim 1.

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