CN111867752A - Holding device and casting parts manufacturing device - Google Patents

Abstract

When the chuck parts of the holding device are located at the separated position, the core metal component is held by the chuck surfaces formed on the back surfaces facing away from each other in the first direction, and the core metal component can be lifted upwards in the third direction. The chuck face has a holding portion formed closer to a position side than both end portions of the chuck face in the third direction, and a conical portion connecting the both end portions and both ends of the holding portion in the third direction, respectively, and a center position of the holding portion in the third direction is arranged below the center position of the chuck face in the third direction.

Description

Holding device and casting parts manufacturing device

technical field

One aspect of the present invention relates to a holding device for a cast member used for a lead acid battery, and a cast member manufacturing apparatus.

Background technique

A core or lattice body as a current collector used in a lead storage battery is produced by casting lead (lead alloy). The cast parts produced by the casting device are taken out from the casting machine by the holding device and conveyed. For example, Patent Document 1 discloses a conveying device including a hand for holding a cast member.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent Application Laid-Open No. 6-344118

SUMMARY OF THE INVENTION

The problem to be solved by the invention

Cast parts such as cores and lattices used for lead-acid batteries are generally produced by casting lead alloys, and therefore generally have properties that are soft and easily deformed. The above-mentioned conventional hand does not consider the case of a cast part that maintains such properties. Therefore, the deformed cast member may be dropped without being able to be stably held, or the cast member may be dropped due to the deformation of the cast member when the cast member is held and cannot be held stably. This drop of cast parts can be a cause of reduced productivity.

Therefore, an object of one aspect of the present invention is to provide a holding device and a casting part manufacturing apparatus which can suppress breakage or drop when holding a cast part.

solutions to problems

A holding device according to an aspect of the present invention is a holding device for holding a cast member used for a lead-acid battery and extending in a plane parallel to a first direction and a second direction orthogonal to each other, and includes a main body portion, When the main body is arranged so as to face the casting member in the third direction, a pair of chuck parts arranged on the casting member side of the main body part, the direction in which the pair of chuck parts approach each other along the plane is regarded as the approaching direction, and a pair of chuck parts is arranged on the casting member side of the main body part. When the direction in which the chuck parts are separated from each other along the plane is used as the separation direction, the driving part moves the pair of chuck parts in the approach direction and the separation direction, and the pair of chuck parts are formed on the back surfaces facing away from each other. A pair of concave chuck surfaces, a pair of chuck surfaces having holding portions formed on the approaching direction side than both end portions of the chuck surfaces in the third direction in the moving direction of the pair of chuck portions, and two connecting chuck surfaces, respectively. The end portion and the tapered portion at both ends in the third direction of the holding portion, when the main body portion is arranged so as to face the cast member in the third direction, the center position of the holding portion in the third direction is arranged on the clip. The center position in the third direction of the disk surface is on the casting part side.

In the holding device of this structure, the tapered portion connected to the holding portion is formed on the chuck surface holding the cast member. Therefore, when the pair of chuck parts move in the separation direction, the cast member comes into contact with the holding part or the conical part. When the cast member comes into contact with the holding portion, the cast member is held by the holding portion as such. When the cast member comes into contact with the conical portion, the cast member is guided to the holding portion by the conical portion, and the cast member is held by the holding portion. Thereby, it is not possible to hold the cast member in an abnormal state other than the holding portion. Furthermore, in the holding device of this configuration, compared with the case where the center position of the holding portion in the third direction is arranged on the main body portion side than the center position of the chuck surface in the third direction, the gripping can be ensured longer. The distance between the main body and the cast part when casting the part. Thereby, it is possible to suppress the contact between the main body portion and the cast member. These results make it possible to suppress breakage (including deformation) or drop when holding the cast part.

A holding device according to an aspect of the present invention is a holding device for holding a cast member used for a lead-acid battery and extending along a plane parallel to a first direction and a second direction orthogonal to each other, and includes a main body portion so as to be placed on a plane orthogonal to the plane. When the main body is arranged so as to face the cast member in the third direction, a pair of chuck portions are arranged on the cast member side of the main body portion. When the direction in which the chuck parts are separated from each other along the plane is used as the separation direction, the driving part moves the pair of chuck parts in the approaching direction and the separation direction. A pair of chuck surfaces, the pair of chuck surfaces has a holding portion formed on the side of the separation direction from both ends of the chuck surface in the third direction in the moving direction of the pair of chuck portions, respectively connecting both ends of the chuck surface When the main body is arranged so as to face the cast member in the third direction, the center position of the holding portion in the third direction is arranged more than the chuck surface. The center position in the third direction is on the cast member side.

In the holding device of this structure, the tapered portion connected to the holding portion is formed on the chuck surface holding the cast member. Therefore, when the pair of chuck parts move in the separation direction, the cast member comes into contact with the holding part or the conical part. When the cast member comes into contact with the holding portion, the cast member is held by the holding portion as such. When the cast member comes into contact with the conical portion, the cast member is guided to the holding portion by the conical portion, and then the cast member is held by the holding portion. Thereby, it is not possible to hold the cast member in an abnormal state other than the holding portion. Furthermore, in the holding device of this configuration, the holding portion can be held longer than the case where the center position of the holding portion in the third direction is arranged on the main body portion side than the center position of the chuck surface in the third direction. The distance between the main body and the cast part when casting the part. Thereby, it is possible to suppress the contact between the main body portion and the cast member. These results make it possible to suppress breakage or drop when holding the cast part.

In the holding device of one aspect of the present invention, the conical portion may be formed in a curved shape. In the holding device of this structure, the cast member can be guided to the holding portion more smoothly.

In the holding device of one aspect of the present invention, the holding portion may extend in the third direction. In the holding device of this structure, since the width in the normal state can be enlarged, breakage or drop when holding the cast member can be suppressed more reliably.

In the holding device according to one aspect of the present invention, the pair of chuck portions may have different shapes when viewed from the moving direction and the direction orthogonal to the third direction. In the holding device of this configuration, since it is possible to hold the shape fitting the cast member, breakage and drop can be suppressed more reliably.

A cast member manufacturing apparatus according to an aspect of the present invention may include the above-mentioned holding device, a forming mold for casting the cast member, and an articulated robot capable of moving the holding device toward and away from the forming mold. In the cast component manufacturing apparatus of this structure, since the holding device is moved by the articulated robot, it can move freely with respect to the entire molding die.

In the cast part manufacturing apparatus according to one aspect of the present invention, a mold release agent discharge nozzle for spreading the mold release agent to the mold mold may be arranged on the mold mold side in the moving direction in the holding device. In the cast member casting apparatus of this configuration, since the release agent is dispensed to the forming mold at the same time as the casting member is taken out from the forming mold, the production efficiency can be improved. Furthermore, in the cast part manufacturing apparatus of this structure, since the holding device is moved by the articulated robot, it can move freely with respect to the entire forming mold, and can spread the release agent to the corners.

In the cast parts manufacturing apparatus according to an aspect of the present invention, the pair of chuck parts includes a first chuck, a second chuck with a tapered portion in a third direction longer than a tapered portion of the first chuck, a driving portion, and The articulated robot may move at least one of the pair of chuck parts and the holding part in such a manner that the second chuck holds the cast part ahead of the first chuck. Here, if the cast member is held by one chuck (first chuck) first, the position of the cast member to be held by the other chuck (second chuck) may fluctuate. In the cast member manufacturing apparatus according to the aspect of the present invention, since the cone of the second chuck is made longer than the cone of the first chuck, even if the position of the cast member is fluctuated as described above, the cast member can be reliably cast. The component is guided into the holder of the second chuck.

The cast parts manufacturing apparatus according to an aspect of the present invention further includes a supply device for supplying molten lead to the molding die, the molding die is disposed in a state inclined in the vertical direction, and a supply port for supplying lead from the supply device is formed at the lowermost portion.

In the cast component manufacturing apparatus according to an aspect of the present invention, the forming mold includes a first region for forming the core rods extending in the first direction and aligned in the second direction, and a first region for forming the core rods extending in the first direction and aligned in the second direction. One end in the first direction is adjacent to the first connecting portion of the supply port and two second regions of the second connecting portion connecting the other end of the mandrel arrayed in the second direction in the first direction, The forming die may be arranged so that the second region on the side where the second connection portion is formed is positioned above the first region in the vertical direction. In this structure, since the molten lead having a light specific gravity is supplied to the second region, the second connection portion is formed of a material of degraded quality, and the core is formed of a material of superior quality. By reducing the quality of the second connection portion that is used as a commercial product without being cut in a subsequent process, a high-quality core can be formed. As a result, a lead storage battery with excellent quality can be manufactured.

Invention effect

According to one aspect of the present invention, it is possible to suppress breakage or drop when holding the cast member.

Description of drawings

FIG. 1 is a diagram schematically showing a core-bone manufacturing apparatus.

FIG. 2 is a view showing a supply device and a molding device included in the core-bone manufacturing apparatus.

FIG.3(a) and FIG.3(b) are figures which show the operation|movement of a shaping|molding apparatus.

FIG. 4 is a plan view showing the core metal member.

FIG. 5 is a plan view of a holding device included in the core-blade manufacturing apparatus.

FIG. 6 is a front view of a holding device included in the core-blade manufacturing apparatus.

FIG. 7 is a side view of the holding device included in the core-bone manufacturing apparatus.

Fig. 8(a) is a front view of the front paw, and Fig. 8(b) is a front view of the rear paw.

FIG. 9 is a flowchart showing the operation of the forming apparatus and the conveying apparatus.

FIG. 10( a ) is a front view of a front claw of a modified example, and FIG. 10( b ) is a front view of a rear claw of a modified example.

FIG. 11( a ) is a front view of a front claw of a modified example, and FIG. 11( b ) is a front view of a rear claw of the modified example.

Detailed ways

Hereinafter, a suitable embodiment of one aspect of the present invention will be described in detail with reference to the accompanying drawings. In addition, in the description of the drawings, the same or equivalent elements are denoted by the same reference numerals, and overlapping descriptions are omitted. 4 to 8, FIG. 10, and FIG. 11 set the X-axis, the Y-axis, and the Z-axis orthogonal to each other for convenience of explanation.

As shown in FIG. 1 , the mandrel manufacturing apparatus (cast component manufacturing apparatus) 1 includes a supply apparatus 3 , a forming apparatus 5 , a conveying apparatus 7 , a cutting apparatus 8 , a collection unit 9 , and a control apparatus 10 . In the core-bone manufacturing apparatus 1, the cast member used for the lead electrode of a lead acid battery is manufactured. For example, in a clad-type lead storage battery (a clad valve-type lead storage battery), a core E1 (refer to FIG. 4 ) used for a clad-type positive electrode for a lead storage battery having a clad tube is produced.

The control device 10 is an electronic control element including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The control device 10 controls various operations of the supply device 3 , the forming device 5 , the conveying device 7 , and the cutting device 8 .

The supply device 3 melts the lead and supplies the lead to the molding device 5 . As shown in FIG. 2 , the supply device 3 includes a melting pot 11 and a supply mechanism 12 .

The melting pot 11 melts lead (including lead alloys). In the melting pot 11, for example, an ingot of lead is supplied. The melting pot 11 is arranged, for example, in the lower part of the supply device 3 . A supply part 13 is provided on the melting pot 11 . The supply unit 13 is connected to a later-described molding die 30 of the molding device 5 , and supplies the lead in the melting pot 11 to the molding die 30 .

The supply mechanism 12 includes a servo motor 14 and a drive mechanism 16 . The servo motor 14 is arranged, for example, in the upper part of the supply device 3 . The drive mechanism 16 includes a transmission portion 18 , a ball screw portion 20 , and a piston 22 .

The transmission part 18 connects the output shaft (not shown) of the servo motor 14 and the ball screw 20 . The transmission part 18 is, for example, a belt. The ball screw portion 20 has a shaft member 24 . The ball screw portion 20 converts the rotational motion of the output shaft of the servo motor 14 into the linear motion of the shaft member 24 . The ball screw 20 moves the shaft member 24 in the vertical direction in accordance with the rotation of the output shaft of the servo motor 14 .

The piston 22 is connected to the melting pot 11 . The piston 22 pushes out the lead in the melting pot 11 to the supply part 13 . The shaft member 24 is connected to the piston 22 . The piston 22 moves in the up-down direction in accordance with the movement of the shaft member 24 . In the supply device 3, the piston 22 is moved downward, and the lead is supplied (injected) from the melting pot 11 to the molding device 5 in a state where pressure is applied to the lead. The operation of the supply device 3 is controlled by the control device 10 .

As shown in FIGS. 2 , 3( a ) and 3 ( b ), the molding device 5 includes a molding die 30 , a moving mechanism 31 , and a hydraulic mechanism 32 .

The forming mold 30 is a casting mold for forming a part of the mandrel member E used as the mandrel E1. The forming die 30 extends along a plane parallel to the X-axis direction (first direction) and the Y-direction (second direction) that are orthogonal to each other. Specifically, as shown in FIG. 4 , the core member E includes a core member E1 extending in the X-axis direction, arranged in the Y-axis direction, and inserted into the cladding tube as a current collector, and a plurality of core members connected and arranged in the Y-axis direction. The first connecting portion E2 and the second connecting portion E3 of the core E1 are connected to the second connecting portion E3 and are connected to the ear portion E4 of the terminal.

As shown in FIG.2, FIG.3(a), and FIG.3(b), the shaping|molding die 30 has the 1st die 30a, and the 2nd die 30b. In the present embodiment, the first mold 30a is provided so as to be movable in a direction approaching and a direction away from the second mold 30b. Specifically, the first mold 30a is swingably provided around a shaft provided at one end portion (the end portion on the supply device 3 side) as a center. The forming die 30 is arranged so as to be inclined with respect to the horizontal direction (the left-right direction in FIG. 2 ). Specifically, the forming die 30 is inclined so that the one end portion on the side of the supply device 3 is the lower end portion. The inclination angle of the forming die 30 with respect to the horizontal direction is appropriately set.

A connecting portion (supply port) 34 is provided on the forming die 30 . In this embodiment, the connection part 34 is provided in the 2nd metal mold|die 30b. The connection part 34 is connected to the supply part 13 of the supply device 34 , and receives supply of lead from the supply device 3 . The connection portion 34 communicates with the space divided by the first mold 30a and the second mold 30b when the first mold 30a and the second mold 30b are closed. In addition, a valve (not shown) for preventing backflow of lead from the molding die 30 to the supply device 3 is provided in the connection portion 34 . The connection part 34 is arrange|positioned at the lower end part (lowermost part) of the 2nd metal mold|die 30b. In this structure, lead is supplied in the molding die 30 from the lower end. Thereby, when lead is supplied to the molding die 30, it rises in the molding die 30 and is filled.

As shown in FIGS. 3( a ) and 4 , the molding die 30 includes a first region A1 for forming the core bars E1 extending in the X-axis direction and lined up in the Y-axis direction, and forming cores connected to the Y-axis direction and lining up in the Y-axis direction. The first connecting portion E2 of the bone E1 and the second region A2 of the ear portion E4 adjacent to the first connecting portion E2 form the second region A2 connecting the second connecting portion E3 of the core bone E1 arranged in the Y-axis direction. In the molding device 5, the molding die 30 is arranged so that the second region A2 on the side where the second connection portion E3 is formed is positioned above the Z-axis direction (vertical direction and the third direction) with respect to the first region A1.

In the present embodiment, a plurality of eject pins 36 are provided on the second mold 30b. Each of the push pins 36 pushes out the core member E from below so that the core member E formed by the forming mold 30 is released from the second mold 30b. Each of the ejection pins 36 is provided so as to be movable in a protruding position (position shown in FIG. 3( b )) protruding from the surface of the second mold 30b and a standby position in which it does not protrude from the surface. The ejector pin 36 is driven by an air cylinder not shown. Each of the ejection pins 36 releases the core member E from the second mold 30b by moving to the protruding position.

The moving mechanism 31 moves the forming die 30 . The moving mechanism 31 moves the forming die 30 by a hydraulic cylinder (not shown). The moving mechanism 31 slidably supports the second mold 30b. The moving mechanism 31 is inclined at a predetermined angle with respect to the horizontal direction so that the molding die 30 is arranged at the above-described inclined angle. The forming mold 30 is moved by the moving mechanism 31 to a supply position (the position shown in FIG. 3( a )) where lead is supplied from the supply position 3 , and a release position (the release of the supply portion 13 ) at which it is separated from the supply position 3 and the core member E is released from the mold. It moves to the position of connection with the connection part 34) (position shown in FIG.3(b)).

The hydraulic mechanism 32 operates to open and close the first mold 30 a and the second mold 30 b of the forming mold 30 . The hydraulic mechanism 32 has a hydraulic cylinder 38 . For example, a plurality of hydraulic cylinders 38 are provided. The hydraulic mechanism 32 maintains the closed state of the forming die 30 at a predetermined pressure (for example, about 30t-50t).

As shown in FIG. 1 , the conveying device 7 conveys the mandrel member E formed in the forming die 30 to the cutting device 8 , and then the mandrel member E is accumulated on the accumulation portion 9 . The transfer device 7 includes an articulated robot 40 and a holding device 50 . The conveying device 7 conveys the mandrel member E formed in the forming die 30 to the cutting device 8 and the accumulation part 9 in the next step. The articulated robot 40 includes an arm portion 41 formed of a plurality of joints, and a rotating portion 43 that rotatably holds the arm portion 41 . The arm portion 41 and the rotating portion 43 move the holding device 50 between the forming die 30 , the cutting device 8 , and the accumulating portion 9 .

The holding device 50 is a device for holding the core member E. As shown in FIGS. 5 to 8 , the holding device 50 includes a main body portion 51 , a chuck portion 60 , and a driving portion 55 . The main body portion 51 extends in one direction. The main body portion 51 is such that the extending direction of the main body portion 51 matches the moving direction of the forming die 30 , that is, the supply (injection) direction of the molten lead to the forming die 30 when the core member E is taken out from the forming die 30 (clamped up). (X direction in this embodiment) is fixed to the articulated robot 40 .

The chuck portion 60 has a pair of front jaws (chuck portion and second chuck) 61 and rear jaws (chuck portion and first chuck) 71 . The front claw 61 and the rear claw 71 are plate-shaped members formed of a stainless steel material, and an example of the thickness thereof is 1.5 mm to 4.5 mm. When the direction in which the front pawl 61 and the rear pawl 71 (a pair of chuck parts) approach each other is defined as the approaching direction and the direction in which they are separated from each other is defined as the separation direction, the driving unit 55 causes the front pawl 61 and the rear pawl 71 to move in the approaching direction. and moving in the leaving direction.

In the present embodiment, the drive unit 55 moves the first support member 57 that supports the rear pawl 71 in the X-axis direction with respect to the main body portion 51 . The front claw 61 is supported by the second support member 56 fixed to the main body portion 51 . Thereby, the front pawl 61 and the rear pawl 71 move between the approaching position in which the front pawl 61 and the rear pawl 71 approach each other in the X-axis direction, and the separation position in which they are separated from each other. The front claw 61 is fixed to the second support member 56 by inserting a bolt or the like (not shown) through the insertion hole 69 . The rear pawl 71 is fixed to the first support member 57 by inserting a bolt or the like (not shown) through the insertion hole 79 . An example of the driving portion 55 is an electric cylinder or an air cylinder.

As shown in FIGS. 8( a ) and 8 ( b ), the front claw 61 and the rear claw 71 form a pair of chuck surfaces 61F and 71F recessed in the approaching direction on the back surfaces BF and BF facing away from each other. When the front claw 61 and the rear claw 71 are located at positions separated from each other, the core member E is held by the chuck surfaces 61F and 71F formed on the back faces BF and BF which face away from each other in the X-axis direction, and can face the Z-axis direction. The core metal member E is lifted up and installed. The front claw 61 holds the first connecting portion E2 of the core member E shown in FIG. 4 , and the rear claw 71 holds the second connecting portion E3 of the core member E.

In the present embodiment, the shapes of the front claw 61 and the rear claw 71 constituting the pair of chuck portions 60 as viewed in the Y-axis direction are different from each other. As shown in FIG. 8( a ), the chuck surface 61F of the front claw 61 has a holding portion 63 formed on the closer position side than both ends 62A, 62B in the Z-axis direction, and the ends 62A, 62B are respectively Conical portions 64A, 64B to which both end portions 63A, 63B of the holding portion 63 are connected. When the main body portion 51 is arranged to face the core member E in the Z-axis direction orthogonal to the XY plane (see FIGS. 6 and 7 ), the center position M1 of the holding portion 63 in the Z-axis direction is compared to The center position M in the Z-axis direction of the chuck surface 61F is arranged below (the core member E side). The holding portion 63 extends in the Z-axis direction. An example of the length H1 in the Z-axis direction of the holding portion 63 is 5.0 mm to 10.0 mm. An example of the distance D1 from both end portions 62A, 62B in the X-axis direction to the holding portion 63 is 5.0 mm to 10.0 mm.

As shown in FIG. 8( b ), the chuck surface 71F of the rear pawl 71 has a holding portion 73 formed on the approaching position side with respect to the both end portions 72A and 72B in the Z-axis direction. The conical portions 74A and 74B connecting the two ends 73A and 73B of the holding portion 73 are arranged below the center position M2 in the Z-axis direction of the holding portion 73 relative to the center position M in the Z-axis direction of the chuck surface 71F. An example of the length H2 in the Z-axis direction of the holding portion 73 is 5.0 mm to 10.0 mm. An example of the distance D2 from the both end portions 72A, 72B to the holding portion 73 in the X-axis direction is 5.0 mm to 10.0 mm.

When the metal core member E is taken out from the forming mold 30, the articulated robot 40 approaches the holding device 50 from above the core metal member E, and inserts the front paws into the space S (see FIG. 4 ) between the core metal member E1 and the core metal member E1. 61 and rear paws 71. Then, the holding device 50 moves the front pawl 61 and the rear pawl 71 inserted into the space S in a direction away from each other, so that the front pawl 61 is brought into contact with the first connection portion E2 and the rear pawl 71 is brought into contact with the second connection portion E3 And hold the core part E.

The mold release agent discharge nozzles 81 and 81 distribute the mold release agent to the first mold 30 a and the second mold 30 b as the forming mold 30 . The release agent discharge nozzles 81 and 81 are arranged on the molding die 30 side in the direction in which the holder 50 moves to the molding die 30 side. The release agent discharge nozzles 81 and 81 supply the release agent from a supply source through a pipe or the like not shown.

The cutting device 8 cuts the ear portion E4 that is a part of the core metal member E shown in FIG. 4 . The cutting device 8 is inserted from the ear portion E4 of the core member E by the conveying device 7 to cut a part of the ear portion E4. The accumulating part 9 has two guide rails 9A and 9A, and accumulates the mandrel members E known by the mandrel manufacturing apparatus 1 . The conveying apparatus 7 rotates the mandrel member E by 180 degrees in the horizontal plane (XY plane) after putting the mandrel member E into the cutting device 8, and loads the accumulating portion 9 from the first connection portion E2 side. The core member E is accumulated in a state in which the first connection portion E2 is suspended on the two guide rails 9A and 9A. When a certain amount of core metal parts E are accumulated on the accumulation part 9, they are conveyed to the downstream process. In addition, the first connection portion E2 suspended by the two guide rails 9A and 9A on the accumulation portion 9 is cut in the above-described downstream process.

Next, the manufacturing method of the core metal member E by the core metal manufacturing apparatus 1 is demonstrated with reference to FIG. 9. FIG. As shown in FIG. 9 , the mold release agent is spread into the molding die 30 (step S0 ). The spreading of the release agent to the molding die 30 is performed by the holding device 50 held by the conveying device 7 . That is, when the mandrel member E cast by the forming mold 30 is taken out from the forming mold 30, the mold release agent is sprayed at the same time. Next, the first mold 30a of the mold 30 is moved by the hydraulic mechanism 32 in the mold 5, and the first mold 30a and the second mold 30b are closed (step S1). And the shaping|molding die 30 is closed in the state which the 1st die 30a and the 2nd die 30b are pressurized (step S2). At this time, the forming die 30 is located at the supply position (refer to FIG. 3( a )). The forming die 30 has a predetermined temperature. For example, the forming die 30 is set at 100°C to 150°C.

Next, the servo motor 14 in the supply device 3 operates, and the lead in the melting pot 11 is supplied in a pressurized state with respect to the molding die 30 (step S3). In step S3 , a predetermined amount of molten lead is supplied to the forming die 30 . After the molten lead is supplied to the forming die 30, the pressurized state of the first die 30a and the second die 30b in the pressurized state is released when a predetermined time elapses. That is, the first mold 30a and the second mold 30b are closed in a relaxed state (step S4). Next, in the forming die 30, the core member E is cooled for a predetermined time (step S5). The core member E is cooled without being pressurized. The cooling time of the core member E can be appropriately set. Next, the forming die 30 is moved to the demolding position (refer to FIG. 3( b )) by the moving mechanism 31 .

Next, by the hydraulic mechanism 32, the 1st metal mold|die 30a is moved in the opening direction, and the shaping|molding metal mold|die 30 is opened (step S6). Next, the ejection pins 36 provided in the second mold 30b are moved to the protruding positions (step S7). Thereby, the mandrel member E formed by the forming die 30 is released from the second die 30b.

Next, the operation of the conveying device 7 will be described. In the molding device 5 , when the core metal member E is demolded from the second mold 30 b in step S7 , the core metal member E is taken out from the second mold 30 b by the holding device 50 held by the conveying device 7 . In the present embodiment, the driving unit 55 of the holding device 50 and the conveying device 7 move the front pawl 61 and the rear pawl 71 so that the rear pawl 71 holds the core member E before the front pawl 61 . Hereinafter, in the X-axis direction, the side where the front pawls 61 are arranged is referred to as the front side, and the side where the rear pawls 71 are arranged is referred to as the rear side.

The conveying device 7 arranges the main body 51 so as to face the core member E in the Z-axis direction, and causes the front pawl 61 and the rear pawl 71 to approach the holding device 50 from above the core member E. The front pawl 61 and the rear pawl 71 are inserted into the space S (refer to FIG. 4 ) between E1 . Next, the driving part 55 is driven to move the rear pawl 71 to the front side relative to the main body part 51 . Thereby, the rear pawl 71 comes into contact with (holds) the second connection portion E3. At almost the same time, the conveyance device 7 moves the holding device 50 to the rear side while maintaining the driving of the drive unit 55 . Thereby, the front pawl 61 comes into contact with (holds) the first connection portion E2. At this point in time, the drive of the drive unit 55 is stopped.

Next, the mold release agent is spread on the molding die 30 by the holding device 50 held by the conveying device 7 (step S0). Next, the mandrel member E is held by the holding device 50 held by the transfer device 7, and transferred to the cutting device 8 (step S11). The conveying device 7 inserts the mandrel member E into the cutting device 8 from the ear portion E4 side. And the ear part E4 which is a part of the metal core member E is cut|disconnected by the cutting device 8 (step S11). Then, when the core member E is held by the holding device 50 held by the conveying device 7, the ejector pin 36 of the second mold 30b moves to the standby position. In addition, the molding die 30 is moved toward the supply device (see FIG. 3( a )) by the moving mechanism 31 in the molding device 5 .

Next, the conveying device 7 rotates the mandrel member E in which the ear portion E4 has been cut by the cutting device 8 by 180 degrees in the horizontal plane, and is put into the accumulating portion 9 from the side of the first connecting portion E2 (step S12). Next, it moves in the direction (approaching position) to close the chuck part of the holding device 50, and transfers the core member E to the two guide rails 9A and 9A in the accumulation part 9 (step S13). In step S13, the core member E is assembled in a state in which the first connection portion E2 is suspended by the two guide rails 9A and 9A. Next, the conveying device 7 moves the holding device 50 to the take-out position in the forming mold 30, that is, above the core metal member E demolded from the forming mold 30 (step S14). Then, the front claw 61 and the rear claw 71 of the chuck portion 60 are moved in the direction of being separated from each other, and the core metal member E is held (step S15). Then, after the mold release agent is sprayed on the molding die 30 , the held core member E is moved and conveyed to the cutting device 8 . After that, steps S0 to S15 are repeated.

As described above, in the mandrel manufacturing apparatus 1 of the above-described embodiment, as shown in FIGS. 8( a ) and 8 ( b ), since the chuck surface 61F ( 71F) of the holding mandrel member E is formed to be connected to the holding Since the tapered parts 64A, 64B (74A, 74B) of the parts 63 (73), when the holding device 50 holds the core part E, even if the core part E cannot be held by the holding part 63 (73), the core part E is E is also guided to the holding portion 63 ( 73 ) along the conical portions 64A, 64B ( 74A, 74B). Thereby, the metal core member E cannot be held in an abnormal state in which it cannot be held by the holding portion 63 (73).

Furthermore, in the holding device 50 of the above-described embodiment, the center position M1 (M2) in the Z-axis direction of the holding portion 63 (73) is arranged at a position closer than the center position M in the Z-axis direction of the chuck surface 61F (71F) below. Therefore, compared with the case where the center position M1 (M2) in the Z-axis direction of the holding portion 63 (73) is arranged above the center position M in the Z-axis direction of the chuck surface 61F (71F), it can be longer. The distance between the main body portion 51 and the core metal member E when the core metal member E is grasped can be securely ensured. Thereby, the main-body part 51 and the metal core member E can be suppressed from coming into contact with each other. As a result of these, breakage and dropping when the core metal member E is held can be suppressed.

Since the holding portion 63 ( 73 ) of the holding device 50 in the present embodiment extends in the Z-axis direction, the width when the metal core member E is held in a normal state can be enlarged. As a result, breakage or drop when holding the core member E can be suppressed more reliably.

In the holding device 50 in the above-described embodiment, since the pair of chuck parts 60 and 60 have different shapes from each other when viewed in the Y-axis direction, the shape of the metal core member E can be held. As a result, breakage or drop of the core metal member E can be suppressed more reliably.

In the holding device 50 in the above-described embodiment, the pair of chuck parts 60 and 60 has the rear pawl 71 and the front pawl 61 whose length H1 of the tapered part 64A in the Z-axis direction is longer than the tapered part 74A of the rear pawl 71 , and drives the The part 55 moves the pair of chuck parts 60 and 60 so that the rear pawl 71 holds the core member E before the front pawl 61 . Here, when the core member E is held by one chuck (rear claw 71 ), the position of the core member E held by the other chuck (front claw 61 ) varies, for example, in the up-down direction (Z-axis direction). In the holding device 50 of the above-described embodiment, since the length of the tapered portion 64A is made longer than the tapered portion 74A, even if the position of the metal core member E is changed as described above, the core metal member E can be reliably guided to the holding Section 63.

In the core metal manufacturing apparatus 1 of the above-described embodiment, since the core metal member E can be taken out from the shaping die 30 and the mold release agent can be sprayed onto the shaping die 30, the production efficiency can be improved. Furthermore, in the core-blade manufacturing apparatus 1 of this structure, since the holding|maintenance apparatus 50 is moved by the articulated robot 40, it can move freely with respect to the shaping|molding die 30 whole, and can spread a mold release agent to a corner.

Since the molding die 30 of the core-blade manufacturing apparatus 1 of the above-described embodiment is arranged so that the second region A2 forming the second connecting portion E3 is positioned above the first region A1 in the Z-axis direction, the specific gravity is supplied to the second region A2. Light molten lead. Thereby, the 1st connection part E2 is formed with the material with degraded quality, and the core metal E1 is formed with the material with excellent quality. By daringly reducing the quality of the first connection portion E2 used as a commercial product without being cut in a subsequent process, it is possible to form the core metal E1 with excellent quality. As a result, a lead storage battery with excellent quality can be manufactured.

As mentioned above, the embodiment of one aspect of the present invention has been described. However, one aspect of the present invention is not necessarily limited to the above-described embodiment, and various modifications can be made without departing from the gist.

An example in which the tapered portions 64A, 64B ( 74A, 74B) of the front claw 61 (rear claw 71 ) in the above-described embodiment are formed linearly has been described, but the present invention is not limited to this. For example, as shown in FIG. 10( a ), the tapered portions 164A and 164B of the front claw 161 may be formed in a curved shape. In addition, as shown in FIG. 10( b ), for example, the tapered portions 174A and 174B of the rear pawl 171 may be formed in a curved shape. In the front pawl 161 (rear pawl 171 ) of this structure, the core metal member E can be guided to the holding portion 63 ( 73 ) more smoothly.

In addition, the holding portion 63 ( 73 ) in the front pawl 61 (rear pawl 71 ) of the above-described embodiment has a portion extending in the Z-axis direction, but is not limited to this. For example, as shown in FIGS. 11( a ) and 11 ( b ), the holding portion 264 of the front pawl 261 may not have a portion extending in the Z-axis direction, but may be one point. Also, for example, the holding portion 274 of the rear pawl 271 may have no portion extending on the Z-axis, but one point.

In addition, when the pair of chuck parts 60 (the front pawl 61 and the rear pawl 71 ) of the above-described embodiment are located at the separated positions, it is explained that the pair of chuck parts 61F ( 71F) The mandrel member E is held and provided so as to be able to lift the mandrel member E upward in the Z-axis direction, but can pass through the chuck surface 61F formed on the opposing surfaces in the X-axis direction when it is in the approaching position (71F) The metal core member E is held and provided so that the core metal member E can be lifted in the Z-axis direction.

In the above-described embodiment and modification examples, the configuration including the driving portion 55 for moving the rear pawl 71 relative to the main body portion 51 has been described as an example, but a driving portion for moving the rear pawl 71 relative to the main body portion 51 and a driving portion for moving the front pawl 61 relative to the main body portion 51 may be respectively provided. drive department. Thereby, each driving part can be controlled, and the rear pawl 71 holds the core member E before the front pawl 61 .

In the above-described embodiment, as an example of a cast member, a core-bone member having a core-bone E1 suitable for a clad-type positive electrode for a lead-acid battery having a clad tube in a composite lead-acid battery (clad valve-type lead-acid battery) has been exemplified. E, however, may be a lattice body used for the electrode plates used for the positive electrode and the negative electrode in the stick-type lead-acid battery (valve-controlled lead-acid battery).

In the above-described embodiment, the configurations of the supply device 3 , the forming device 5 , the conveying device 7 , the cutting device 8 , and the accumulating unit 9 can be appropriately changed.

Symbol Description

1—Core Bone Manufacturing Device, 3—Supply Device, 5—Forming Device, 7—Conveyor Device, 8—Cutting Device, 9—Accumulation Unit, 10—Control Device, 30—Forming Die, 34—Connecting Part (Supply Port ), 40—multi-joint robot, 50—holding device, 51—main body part, 55—driving part, 56—second supporting part, 57—first supporting part, 60—chuck part, 61—front claw, 61F— Chuck surface, 62A, 62B—both ends, 63—holding part, 64A, 64B—cone part, 71—rear claw, 71F—chuck surface, 72A, 72B—both ends, 73—holding part, 74A, 74B— Conical part, 79—through hole, 81—release agent discharge nozzle, A1—first area, A2—second area, BF—back surface, E—core part (cast part), E1—core, E2—first connection part, E3—second connection part, E4—ear part.

Claims (10)

1. A holding device for holding a cast member used for a lead-acid battery and extending along a plane parallel to a first direction and a second direction orthogonal to each other, the holding device being characterized in that,

the disclosed device is provided with:

a main body portion;

a pair of chuck sections disposed on the casting member side of the body section when the body section is disposed so as to face the casting member in a third direction orthogonal to the plane; and

a driving section that moves the pair of chuck sections in the approaching direction and the separating direction when a direction in which the pair of chuck sections approach each other along the plane is defined as an approaching direction and a direction in which the pair of chuck sections separate from each other along the plane is defined as a separating direction,

a pair of chuck surfaces recessed in the approaching direction are formed on opposite back surfaces of the pair of chuck sections,

the pair of chuck surfaces has:

a holding portion formed closer to the approaching direction side than both end portions of the chuck surface in the third direction in the moving direction of the pair of chuck portions; and

a conical portion connecting both end portions of the chuck surface and both end portions of the holding portion in the third direction,

When the main body is disposed so as to face the cast member in the third direction, a center position of the holding portion in the third direction is disposed closer to the cast member than a center position of the chuck surface in the third direction.

2. A holding device for holding a cast member used for a lead-acid battery and extending along a plane parallel to a first direction and a second direction orthogonal to each other, the holding device being characterized in that,

the disclosed device is provided with:

a main body portion;

a pair of chuck sections disposed on the casting member side of the body section when the body section is disposed so as to face the casting member in a third direction orthogonal to the plane; and

a driving section that moves the pair of chuck sections in the approaching direction and the separating direction when a direction in which the pair of chuck sections approach each other along the plane is defined as an approaching direction and a direction in which the pair of chuck sections separate from each other along the plane is defined as a separating direction,

a pair of chuck faces recessed in the separating direction are formed on the opposed faces of the pair of chuck sections,

the pair of chuck surfaces has:

A holding portion formed on the chuck surface in the third direction on the side of the separating direction with respect to both end portions of the chuck surface in the moving direction of the pair of chuck portions; and

a conical portion connecting both end portions of the chuck surface and both end portions of the holding portion in the third direction,

when the main body is disposed so as to face the cast member in the third direction, a center position of the holding portion in the third direction is disposed closer to the cast member than a center position of the chuck surface in the third direction.

3. Holding device according to claim 1 or 2,

the conical portion is formed in a curved shape.

4. The holding device according to any one of claims 1 to 3,

the holding portion extends in the third direction.

5. The holding device according to any one of claims 1 to 4,

the pair of chuck sections have different shapes when viewed from a direction orthogonal to the moving direction and the third direction.

6. A cast component manufacturing apparatus, characterized in that,

the disclosed device is provided with:

the holding device according to any one of claims 1 to 5;

A molding die for casting the cast member; and

and a multi-joint robot that moves the holding device so as to be able to approach and separate from the molding die.

7. The cast component manufacturing apparatus according to claim 6,

in the holding device, a mold release agent discharge nozzle for spraying a mold release agent to the mold is disposed on the mold side in the moving direction.

8. The cast component manufacturing apparatus according to claim 6 or 7,

the pair of chuck sections has a first chuck, a second chuck having a length of the conical section in the third direction longer than that of the first chuck,

the drive unit and the articulated robot move at least one of the pair of chuck units and the holding device so that the second chuck holds the cast member before the first chuck.

9. The cast component manufacturing apparatus according to claim 8,

further comprises a supply device for supplying molten lead to the forming mold,

the forming die is disposed in a state of being inclined with respect to a vertical direction, and a supply port for supplying the lead from the supply device is formed in a lowermost portion.

10. The cast component manufacturing apparatus according to claim 9,

the forming die comprises: a first region in which core bars extending in the first direction and arranged in the second direction are formed; two second regions each having a first connecting portion connected to one end portion in the first direction of the cores arranged in the second direction and adjacent to the supply port, and a second connecting portion connected to the other end portion in the first direction of the cores arranged in the second direction,

the forming die is disposed such that the second region on the side where the second coupling portion is formed is located vertically above the first region.

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