JP5795300B2 - Inspection method and inspection apparatus for battery electrode plate manufacturing apparatus - Google Patents

Description

  The present invention relates to an inspection method for a battery electrode plate manufacturing apparatus that inspects a battery electrode plate manufacturing apparatus that ultrasonically bonds a lead to a battery electrode plate, and an inspection apparatus using the inspection method.

  As is well known, in the battery electrode plate manufacturing apparatus as described above, in order to join the substrate and the lead constituting the battery electrode plate, between the horn that vibrates ultrasonically and the anvil that is pressed against the horn. The substrate and the lead are overlapped and sandwiched, and in this state, the horn is driven and ultrasonic bonding is performed. However, such ultrasonic vibration inevitably causes wear on the contact surface (processed surface) of the horn or anvil pressed against the substrate or the lead. For this reason, conventionally, a technique for appropriately grasping wear generated on the surface of the horn or the anvil has been proposed. As an example of such a technique, there is an apparatus described in Patent Document 1.

  The apparatus described in Patent Literature 1 includes a camera that shoots a knurled surface of an anvil that constitutes an ultrasonic welding tool, that is, a surface that contacts a workpiece, a camera that shoots a knurled surface of a horn that constitutes an ultrasonic welding tool, A tool inspection computer that performs image analysis of the captured images. A plurality of quadrangular pyramidal protrusions are arranged on the anvil and horn knurled surfaces. The computer for tool inspection analyzes the captured image to determine the width of the tip of each knurled projection of the anvil and horn, and determines the replacement time of the anvil or horn based on the determined width of the tip. To do. Thereby, it becomes possible to appropriately determine the replacement time of the ultrasonic welding tool.

JP 2010-207837 A

  According to the apparatus described in Patent Document 1, it is possible to determine the replacement time of an anvil or horn having a quadrangular pyramidal projection on the knurled surface. However, when the pyramid-shaped protrusion is not provided on the knurled surface of the anvil or horn, the apparatus described in Patent Document 1 cannot appropriately determine the replacement time. In addition, since the wear generated on the knurled surface of the ultrasonic welding tool varies depending on the contact state between the knurled surface and the member to be ultrasonically welded, the determination of the replacement time of the ultrasonic welding tool should be made. It is necessary to make a determination corresponding to the wear generated on the knurled surface. And even if the object of inspection is the above-described battery electrode plate manufacturing apparatus, such problems are generally common.

  The present invention has been made in view of such circumstances, and its purpose is to manufacture a battery electrode plate that can more appropriately determine the replacement time in the ultrasonic bonding tool of the battery electrode plate manufacturing apparatus. An object of the present invention is to provide an inspection method for an apparatus and an inspection apparatus using the inspection method.

An inspection method for an apparatus for manufacturing a battery electrode plate that solves the above-described problems causes ultrasonic vibrations to be generated between a first tool and a second tool, and the processed surface of the first tool and the second tool. Ultrasonically bonding a substrate of a battery electrode plate made of a porous material sandwiched between the processed surface and a lead having higher mechanical strength than the substrate disposed on the substrate of the battery electrode plate, An inspection method for a battery electrode plate manufacturing apparatus provided with a first tool and a second tool, wherein at least one of a machining surface of the first tool and a machining surface of the second tool is The amount of wear between the center portion corresponding to the position of the lead and the end portion not corresponding to the position of the lead on the processing surface having a width wider than the width of the lead and wider than the width of the lead. a detection step of detecting as said detected amount of wear from the porous body That is greater than the value indicating that the state that may affect the mechanical strength of the substrate for a battery electrode plate, at least one of the replacement timing of the first tool and the second tool The gist is to include a determination step for determination.

An inspection apparatus for a battery electrode plate manufacturing apparatus that solves the above-described problems causes ultrasonic vibration to occur between a first tool and a second tool so that the machining surface of the first tool and the second tool Ultrasonically bonding a substrate of a battery electrode plate made of a porous body sandwiched between a processed surface and a lead having higher mechanical strength than the substrate disposed on the substrate of the battery electrode plate; An inspection apparatus for a battery electrode plate manufacturing apparatus provided with one tool and the second tool, wherein at least one of the processing surface of the first tool and the processing surface of the second tool has a width thereof Is a level difference between a center portion corresponding to the position of the lead and an end portion not corresponding to the position of the lead on a processed surface having a width wider than the lead and wider than the width of the lead. a detection unit detecting for the detected wear amount consists of the porous body When larger than the value indicating that the state that may affect the mechanical strength of the substrate pond electrode plates for the determination of at least one of the replacement timing of the first tool and the second tool The gist is to include a determination unit.

  The first tool and the second tool used for so-called ultrasonic bonding, when the wear of their processed surfaces is increased, the bondability of ultrasonic bonding between the substrate of the battery electrode plate and the lead is reduced or worn. There is a risk that the deformation generated on the processed surface may form a recess in the substrate or the like or may be damaged.

  Therefore, according to such a method or configuration, a processed surface wider than the lead width has a surface that does not wear at the end in the width direction and a surface that wears at the center in the width direction. The amount of wear is calculated on the basis of the level difference with the surface to be worn. That is, the wear amount of the machining surface of the first tool and the wear amount of the machining surface of the second tool are appropriately calculated. Based on the amount of wear of the machining surface of the first tool and the amount of wear of the machining surface of the second tool calculated in this way, the time for exchanging these tools is determined, so that it occurs on the machining surface of the first tool. The step formed on the processed surface of the second tool or the second tool can suitably manage the recesses and scratches formed on the substrate of the battery electrode plate.

Further, the replacement time of the first tool and the second tool can be more appropriately determined without depending on the shape of the machined surface of the tool.
In the inspection method for the battery electrode manufacturing apparatus, the width of the machining surface of the first tool and the width of the machining surface of the second tool are each wider than the width of the lead. For each of the machining surface of the first tool and the machining surface of the second tool, a step between a center portion corresponding to the lead position and an end portion not corresponding to the lead position is detected as a wear amount, In the determination step, the total amount of the wear amount of the machining surface of the first tool and the wear amount of the machining surface of the second tool affects the mechanical strength of the substrate of the battery electrode plate made of the porous body. It is preferable to determine the replacement time of at least one of the first tool and the second tool when the value is larger than a value indicating that the state is likely to be exerted .

In the inspection apparatus for a battery electrode plate manufacturing apparatus, the width of the machining surface of the first tool and the width of the machining surface of the second tool are each wider than the width of the lead, and the detection unit For each of the machining surface of the first tool and the machining surface of the second tool, a step between a center portion corresponding to the lead position and an end portion not corresponding to the lead position is detected as a wear amount, In the determination unit, the total amount of the wear amount of the machining surface of the first tool and the wear amount of the machining surface of the second tool affects the mechanical strength of the substrate of the battery electrode plate made of the porous body. It is preferable to determine the replacement time of at least one of the first tool and the second tool when the value is larger than a value indicating that the state is likely to be exerted .

  The first tool or the second tool that sandwiches the substrate has a recess and a second tool formed by the first tool, particularly when the step of the processed surface generates a recess or a scratch on both sides of the substrate. In the portion where the concave portions formed by are overlapped, the thickness of the substrate of the battery electrode plate is reduced, which may reduce the strength of the substrate.

According to such a method or configuration, the replacement time of the first tool or the second tool is determined based on the total amount of wear. The thickness of the substrate by which the recess formed by each of the first tool and the second tool is thinned by determining the replacement time based on the total amount of wear of the first tool and the second tool. Thus, it is possible to determine the replacement time so that the thickness can be maintained at an appropriate thickness. As a result, the replacement time of the first tool and the second tool can be more appropriately determined in consideration of the recesses formed on both surfaces of the substrate.
Furthermore, according to such a method or configuration, the replacement timing of the first tool or the second tool can be determined by comparing the total amount of wear with a value corresponding to the total amount. As a result, the replacement time can be easily determined. That is, the first tool or the second tool is a stage before the substrate is cut due to a step between the center portion and the end portion of the processing surface of the first tool and the processing surface of the second tool due to wear. The tool can be changed appropriately.

  About the inspection method of the said electrode plate manufacturing apparatus for batteries, as for at least one of the said 1st tool and the said 2nd tool, the said process surface is a plane, and the amount of wear of the process surface which is the said plane in the said detection process Is preferably calculated based on the average value of the amount of wear on the machined surface.

  About the inspection apparatus of the said electrode plate manufacturing apparatus for batteries, as for at least one of the said 1st tool and the said 2nd tool, the said process surface is a plane, The said detection part is the amount of wear of the process surface which is the said plane. Is preferably calculated based on the average value of the amount of wear on the processed surface.

  According to such a method or configuration, with respect to a tool having a flat machining surface, the influence of a partial wear amount variation occurring on the machining surface is reduced, and the tool is based on the overall wear tendency of the machining surface. It becomes possible to determine the replacement time. In addition, it is possible to determine the replacement time of a tool that is not provided with a protrusion or a machined surface of a tool that is not knurled.

  As for the inspection method of the battery electrode plate manufacturing apparatus, at least one of the first tool and the second tool has a plurality of protrusions on the processing surface, and the plurality of protrusions in the detection step. It is preferable that the amount of wear of the machined surface having the above is calculated based on the amount of wear of the projection at the central portion of the machined surface.

  In the inspection apparatus for the battery electrode plate manufacturing apparatus, at least one of the first tool and the second tool has a plurality of protrusions on the processing surface, and the detection unit includes the plurality of protrusions. It is preferable to calculate the amount of wear of the processed surface having a thickness based on the amount of wear of the projection at the central portion of the processed surface.

  According to such a method, even if the processed surface has a plurality of protrusions, the amount of wear of the processed surface having a plurality of protrusions can be obtained from the amount of wear of the protrusions. Thereby, even if it is a tool which has the process surface in which the processus | protrusion was provided, the replacement | exchange time comes to be determined appropriately. In addition, by calculating the wear amount from the projection at the center of the processed surface, an appropriate value can be obtained as the wear amount.

  Regarding the inspection method of the electrode plate manufacturing apparatus for a battery, in the detection step, the wear amount of the processing surface that is the flat surface is the width of the processing surface that is the flat surface from the surface in the width direction end portion of the processing surface that is the flat surface. It is preferable to calculate based on the depth to the surface of the central portion in the direction.

  According to such a method, the amount of wear is calculated based on the difference (step) in the distance from the non-wearing surface at the end in the width direction of the machined surface to the worn surface at the center in the width direction of the machined surface, the so-called depth. Is done. Thereby, the amount of wear of the processing surface which is a plane will be computed appropriately.

  About the inspection method of the electrode plate manufacturing apparatus for a battery, in the detection step, the depth from the surface of the processing surface that is the flat surface in the width direction to the surface of the processing surface that is the flat surface in the width direction is the depth. It is preferably measured by a two-dimensional sensor that can be measured in a range in the width direction of the processing surface that is a flat surface.

  According to such a method, the surface at the end in the width direction of the machined surface (the surface that does not wear) and the surface at the center in the width direction of the machined surface of the horn (the surface that wears) are measured by one sensor. Therefore, the wear amount can be calculated easily and quickly based on the timely measured value.

  Regarding the inspection method of the battery electrode plate manufacturing apparatus, the amount of wear on the processed surface having the plurality of protrusions is worn before the protrusion on the central portion in the width direction of the processed surface having the plurality of protrusions is worn. It is preferable to calculate the average value of the distance from the height to the height in each case.

  According to such a method, the amount of wear is calculated based on the average value of the difference between the height of the projection before being worn on the machined surface having a plurality of projections and the height of each projection. In other words, for tools that have multiple projections on the machining surface, the influence of changes in the amount of wear and some variations that occur on each of the projections on the machining surface is reduced, resulting in an overall wear tendency on the machining surface. Based on this, it becomes possible to determine the replacement time of the tool. As a result, it is possible to determine the replacement time of a tool having a protrusion, for example, a machined surface of a tool that is knurled.

  About the inspection method of the electrode plate manufacturing apparatus for a battery, in the detection step, the height of each protrusion of the central portion in the width direction of the processed surface having the plurality of protrusions is a height before the protrusions are worn. It is preferable to measure with a one-dimensional sensor capable of measuring the distance in the height direction with reference to the height.

  According to such a method, since the protrusion at the center in the width direction of the processing surface having a plurality of protrusions (a wear protrusion) is measured by the sensor, the wear amount is calculated based on the timely measured value. Will be able to do.

  According to this inspection method for a battery electrode plate manufacturing apparatus and the inspection device, the replacement time can be more appropriately determined in the ultrasonic welding tool of the battery electrode plate manufacturing apparatus.

The schematic diagram which shows the outline | summary of the inspection apparatus about one Embodiment which actualized the inspection apparatus of the electrode manufacturing apparatus for batteries which concerns on this embodiment. In the same embodiment, the schematic diagram which shows typically the perspective structure of the electrode plate manufacturing apparatus for batteries. Sectional drawing which shows a cross-section when an ultrasonic joining tool is an initial state in the embodiment. Sectional drawing which shows a cross-section when the ultrasonic joining tool is in the worn state in the same embodiment. Sectional drawing which shows the cross-sectional structure about an example of the electrode plate for batteries manufactured with the worn ultrasonic joining tool in the embodiment. Sectional drawing which shows typically the abrasion state of the process surface of the horn of an ultrasonic joining tool in the embodiment. In the embodiment, the schematic diagram which shows typically the abrasion state of the processed surface of the anvil of an ultrasonic joining tool. The graph which shows the conditions when determining replacement | exchange time based on the amount of wear of the processed surface of an anvil, and the amount of wear of the processed surface of a horn in the embodiment. In the same embodiment, the graph which shows the relationship between the abrasion loss of the process surface of a horn, and the travel distance of a horn. Sectional drawing which shows sectional structure when the ultrasonic joining tool of the manufacturing apparatus is an initial state about other embodiment which actualized the battery electrode plate manufacturing apparatus which concerns on this embodiment. Sectional drawing which shows a cross-section when the ultrasonic joining tool is in the worn state in the same embodiment.

Hereinafter, an embodiment in which an inspection method and an inspection apparatus for a battery electrode plate manufacturing apparatus according to the present invention are embodied will be described with reference to FIGS.
In this embodiment, the case where the positive electrode plate of a nickel metal hydride storage battery is manufactured as a battery electrode plate is illustrated. This nickel metal hydride storage battery is a sealed battery, and is a battery used as a power source for electric vehicles and hybrid vehicles. This nickel-metal hydride storage battery includes, for example, a separator composed of a predetermined number of negative electrode plates containing a hydrogen storage alloy and a predetermined number of positive electrode plates containing nickel hydroxide (Ni (OH) ₂ ) made of an alkali-resistant resin nonwoven fabric. The electrode group laminated | stacked through is provided. The negative electrode plate is manufactured by applying a hydrogen storage alloy powder to an electrode support as a substrate made of punching metal or the like. The positive electrode plate is manufactured by filling a substrate 10 made of a foamed nickel substrate, which is a metal porous body, with an active material containing nickel hydroxide particles. The nickel-metal hydride storage battery has the positive electrode of the electrode group connected to the current collector plate on the positive electrode side, the negative electrode of the electrode group connected to the current collector plate on the negative electrode side, and is housed in a resin battery case together with the electrolyte. Composed.

  By the way, the positive electrode plate has a low mechanical strength because the substrate 10 is porous made of a metal porous body, and it is difficult to directly attach the current collector plate to the end (side) thereof. Therefore, in the positive electrode plate, the lead 15 which is a metal plate made of a nickel plate, a nickel plating plate or the like and welded to the surface near the side to which the current collector plate is connected among the surfaces of the substrate 10 is welded. A current collecting plate is attached to the lead 15 that has been made. That is, the current collector plate is attached to the positive electrode plate via the lead 15.

First, the manufacturing apparatus of the positive electrode plate of a nickel metal hydride storage battery is demonstrated.
As shown in FIGS. 1 to 3, the positive electrode plate manufacturing apparatus includes a horn 20 as a first tool or a second tool that vibrates ultrasonically, and a second tool or a second tool disposed at a position facing the horn. And an anvil 30 as one tool. The horn 20 and the anvil 30 are so-called ultrasonic bonding tools, and sandwich the substrate 10 and the lead 15 that are overlapped between the horn 20 and the anvil 30. The horn 20 applies ultrasonic vibration to the substrate 10 and the lead 15 sandwiched between the anvil 30 to ultrasonically bond the contact surfaces of the substrate 10 and the lead 15. This ultrasonic bonding is so-called solid phase bonding. The horn 20 and the anvil 30 are column-shaped rotating rolls that rotate so that the substrate 10 and the lead 15 can be moved in the traveling direction F. The horn 20 and the anvil 30 may be driven to rotate, or may be moved by the substrate 10 and the lead 15. The lead 15 has a length in the direction along the traveling direction F as a lead length and a length in a direction perpendicular to the traveling direction F as a lead width.

  The horn 20 includes a processed surface 21 that is a flat surface that comes into contact with a surface that is a surface on which the leads 15 of the substrate 10 are placed on the outer periphery of a roll that is a cylindrical column surface. The horn 20 is rotated in the rotation direction R <b> 1 so that the processed surface 21 that contacts the lead 15 moves in the traveling direction F. As a result, the horn 20 moves the processing surface 21 together with the lead 15 in the traveling direction F, and transmits ultrasonic vibration from the processing surface 21 to the lead 15.

  The anvil 30 includes a processing surface 31 facing the back surface, which is a surface on which the leads 15 of the substrate 10 are not placed, on the outer periphery of the roll, which is a cylindrical column surface. The processing surface 31 includes a plurality of protrusions 32. That is, the processed surface 31 is a processed surface having a plurality of protrusions 32. The tip of the protrusion 32 is in contact with the back surface of the substrate 10. That is, the anvil 30 ensures a high frictional force with the back surface of the substrate 10 by the protrusion 32 of the processed surface 31. The shape of the protrusion 32 may be a conical shape, a pyramid shape, a cylindrical shape, or a prism shape as long as a frictional force necessary for ultrasonic bonding can be secured between the anvil 30 and the back surface of the substrate 10. However, it may be a groove.

  The anvil 30 is rotated in the rotation direction R <b> 2 so that the processing surface 31 facing the back surface of the substrate 10 moves in the traveling direction F. The anvil 30 is pressed in the direction of the horn 20 by a pressing device (not shown). As a result, the anvil 30 moves the processing surface 31 together with the substrate 10 in the traveling direction F, and presses the substrate 10 toward the horn 20 via the protrusion 32 of the processing surface 31.

  The anvil 30 holds the substrate 10 with a high frictional force, and applies ultrasonic vibration from the processed surface 21 of the horn 20 to the lead 15 placed on the lead placement portion 11 of the held substrate 10. As a result, vibration due to ultrasonic vibration occurs between the substrate 10 (lead placement portion 11) and the lead 15, and the contact surface between the substrate 10 and the lead 15 is ultrasonically bonded. In this embodiment, since the width of the anvil 30 and the horn 20 is set to be larger than the width of the lead 15, the substrate 10 and the lead 15 sandwiched between the anvil 30 and the horn 20 have a contact surface thereof. Everything will be reliably welded.

  By the way, as shown in FIG. 3, when the substrate 10 and the lead 15 are ultrasonically bonded with the substrate 10 and the lead 15 sandwiched between the horn 20 and the anvil 30, Since the wear received by the friction with the anvil 30 is only at the time of joining, the wear can be ignored. On the other hand, the machined surfaces 21 and 31 of the rotating horn 20 and the anvil 30 are repeatedly in contact with the substrate 10 and the leads 15, so that wear gradually progresses each time friction occurs. If the amount of wear (amount of wear) increases, the contact state of the processed surfaces 21 and 31 corresponding to the substrate 10 and the lead 15 becomes inappropriate, the bonding strength of ultrasonic bonding becomes inappropriate, or wear occurs. The processed surfaces 21 and 31 may cause unnecessary processing (scratching) on the substrate 10.

  As shown in FIG. 4, the processed surface 21 of the horn 20 that has been subjected to ultrasonic bonding repeatedly has a width direction center portion 22 (a portion corresponding to the position of the lead 15) worn by the wear with the lead 15, and the width direction in which the wear surface does not wear. It becomes lower (deeper) by a distance D1 toward the center of the horn 20 than the end 23 (portion not corresponding to the position of the lead 15). That is, in the processed surface 21 of the horn 20, the width direction end portion 23 protrudes outward by a distance D1 relatively. For this reason, if the amount of wear increases and the tip of the widthwise end portion 23 reaches the surface of the substrate 10, a so-called scratch that forms a recess on the surface of the substrate 10 is caused.

  As shown in FIG. 5, in the substrate 10 ultrasonically bonded by the horn 20 whose tip in the width direction end 23 has reached the substrate 10, the concave portion 12 along the lead 15 is formed on the surface of the lead placement portion 11. It becomes. That is, the mechanical strength of the substrate 10 may be reduced by the recess 12 having a depth D1 from the surface of the lead 15 formed on the surface of the substrate 10.

  As shown in FIG. 4, in the processed surface 31 of the anvil 30 in which the substrate 10 is repeatedly pressed to the horn 20 side, the center portion in the width direction is in contact with the portion corresponding to the position of the lead 15 of the substrate 10, and both end portions in the width direction are It contacts the portion of the substrate 10 that does not correspond to the position of the lead 15. Since the lead 15 has a higher mechanical strength than the porous substrate 10, the processed surface 31 (projection 32) of the anvil 30 has a wear amount at the center in the width direction corresponding to the position of the lead 15. More than the wear amount of the part that does not correspond to. Therefore, the protrusion 32 at the center in the width direction is worn away by wear, and the height becomes lower by a distance D2 toward the center of the anvil 30 than the protrusion 32 at the end in the width direction with little wear. That is, on the processed surface 31 of the anvil 30, the protrusion 32 at the end in the width direction relatively protrudes outward by the distance D2. Therefore, the protrusion 32 at the end in the width direction comes to pierce the back surface of the substrate 10, so that a hole is formed on the back surface of the substrate 10, so-called scratches (recesses are formed).

  Normally, when the processed surface 31 of the anvil 30 is worn, the bonding strength between the substrate 10 and the lead 15 tends to be weak. In such a case, the bonding strength is increased by increasing the pressure applied to the horn 20 side. It is generally done to keep. However, when there is a step on the processed surface 31 (projection 32) of the anvil 30, if the pressure applied to the horn 20 is increased, the above-described scratches are more likely to occur and the strength of the substrate 10 is reduced. Is concerned.

  As shown in FIG. 5, the substrate 10 ultrasonically bonded by the anvil 30 in which the protrusion 32 at the end in the width direction relatively protrudes is formed with a hole 13 on the back surface of the substrate 10 along the lead 15 on the surface of the substrate 10. Will be formed. That is, the mechanical strength of the substrate 10 may be reduced by the hole 13 having a depth D2 from the back surface formed on the back surface.

  In particular, the step on the processing surface 21 of the horn 20 and the step 31 on the processing surface 31 of the anvil 30 that sandwich the substrate 10 generate recesses and scratches on both surfaces of the substrate 10. In the portion where the formed recesses overlap, the thickness of the substrate 10 of the battery electrode plate is reduced, which may reduce the strength of the substrate 10.

  Therefore, when performing ultrasonic bonding, the distance D1 of the step generated on the processed surface 21 of the horn 20, the so-called wear amount, and the distance D2 of the step generated on the processed surface 31 of the anvil 30, the so-called wear amount, are appropriately managed. There is a need.

  Then, the structure of the inspection apparatus of the manufacturing apparatus of the positive electrode plate of the nickel hydride storage battery which can manage appropriately the abrasion loss of each processing surface 21 and 31 of the horn 20 or the anvil 30 and its method are demonstrated.

  As shown in FIG. 1, the inspection device of the positive electrode plate manufacturing apparatus of the nickel-metal hydride storage battery includes a horn sensor 50 as a detection unit that measures the distance to the processing surface 21 of the horn 20, and a processing surface 31 of the anvil 30. And an anvil sensor 51 as a detection unit for measuring the distance. The inspection apparatus also includes a control device 40 as a determination unit to which the measurement result of the horn sensor 50 and the measurement result of the anvil sensor 51 are input.

  As shown in FIG. 6, the horn sensor 50 is a laser sensor that can measure the distance to the processed surface 21 of the horn 20. More specifically, the horn sensor 50 is a two-dimensional laser sensor, and the distance to the processing surface 21 of the horn 20 is the entire range W1 in the width direction that is a direction orthogonal to the traveling direction F on the processing surface 21 of the horn 20. Is measured (detection step). Since the processed surface 21 of the horn 20 is wider than the lead 15, the processed surface 21 of the horn 20 has a large amount of wear in a range in contact with the lead 15 including the central portion 22 in the width direction. The area that does not come into contact with the lead 15 including 23 is not substantially worn. That is, the horn sensor 50 has a distance L11 to the widthwise center portion 22 on the processed surface 21 of the horn 20 and a distance L12 to the widthwise end portion 23 shorter than the distance L11. Measure each. The distance L12 is substantially the same distance as the distance to the processed surface 21 of the unused horn 20.

  As shown in FIG. 7, the anvil sensor 51 is a laser sensor that can measure the distance to the processed surface 31 and the protrusion 32 of the anvil 30. More specifically, the anvil sensor 51 is a one-dimensional laser sensor, and the distance to the processed surface 31 and the protrusion 32 of the anvil 30 is determined with respect to a specific position in the width direction that is a direction orthogonal to the traveling direction F in the anvil 30. Measure (detection process). Since the width of the processed surface 31 of the anvil 30 is wider than the width of the lead 15, the anvil 30 has a large amount of wear on the protrusion 32 at the center in the width direction included in the range facing the lead 15, while The wear of the protrusion 32 at the end in the width direction included in the range that is in contact but not directly facing the lead 15 is small. That is, the anvil sensor 51 measures the distance L21 to the processed surface 31 and the distance L22 to the worn protrusion 32 at a specific position in the width direction where the worn protrusion 32 is present. The anvil sensor 51 measures the distance L2 up to the protrusion 32 in the unused anvil 30.

The control device 40 determines the replacement time of the horn 20 and the anvil 30 based on the distance measured by the horn sensor 50 and the distance measured by the anvil sensor 51 (determination step).
The control device 40 includes a microcomputer having an arithmetic device (CPU) and a nonvolatile or volatile storage device such as a ROM or a RAM. The nonvolatile storage device of the microcomputer holds a control program for performing various processes and various parameters used for the various processes. The arithmetic device executes a control program held in the storage device as necessary, and refers to various parameters as necessary during execution of the control program. In the present embodiment, the storage device includes a program for determining the replacement time of the horn 20 based on the distance measured by the horn sensor 50, and the forecast value E20 and the replacement value used for determining the replacement time in the processing of the program. Parameters including E21 are stored. The storage device also includes a program for determining the replacement time of the anvil 30 based on the distance measured by the anvil sensor 51, and parameters including a forecast value E30 and a replacement value E31 used for determining the replacement time in the processing of the program. It is included. Further, the storage device includes a program for determining the replacement time of the horn 20 and the anvil 30 based on the distance measured by the horn sensor 50 and the distance measured by the anvil sensor 51, and for determining the replacement time in the processing of the program. Parameters including the forecast value E40 and the exchange value E41 used are included. That is, the forecast values E20, E30, E40 and the exchange values E21, E31, E41 are set to be usable as values indicating the exchange time.

  In the present embodiment, the control device 40 calculates the wear amount of the horn 20 based on the distance L11 to the width direction central portion 22 and the distance L12 to the width direction end portion 23 measured by the horn sensor 50. For example, the control device 40 uses the distance D1 (D1 = L11−L12), which is the difference between the distance L11 to the widthwise central portion 22 and the distance L12 to the widthwise end portion 23, as the wear amount.

  Further, the control device 40 calculates the amount of wear of the anvil 30 based on the distance L22 to the protrusion 32 at the center in the width direction measured by the anvil sensor 51 and the distance L2 to the protrusion 32 of the unused anvil 30. . For example, the control device 40 sets the distance D2 (D2 = L2−L22), which is the difference between the distance L22 to the protrusion 32 at the center in the width direction and the distance L2 to the protrusion 32 of the unused anvil 30, as the wear amount. In addition, the distance L2 to the protrusion 32 of the unused anvil 30 is stored in the storage device as a value measured immediately after the anvil 30 is replaced or as an initially set value.

  As described above, in the present embodiment, a value obtained by measuring an unused anvil 30 is used as the distance L2. As in the case of the horn 20, each time the wear amount is calculated, the distance to the protrusion 32 is measured by extracting only the distance from the measured distance 31 to the processed surface 31 to the protrusion 32 at the end. Also good. However, in that case, since it is necessary to extract only the protrusion 32 from the processed surface 31, it is easier to use a value measured with an unused anvil 30 as in this embodiment.

  By the way, since the anvil 30 is provided with a plurality of projections 32 on the machining surface 31 separately, the control device 40 receives the distance L22 from the anvil sensor 51 to the projection 32 and the distance L21 to the machining surface 31. Therefore, the control device 40 provides a threshold for extracting only the distance L22 to the protrusion 32 in the vicinity of the distance L21 to the machining surface 31 that does not change, and sets a distance shorter than the threshold as the distance L22 to the protrusion 32. Extract. In addition, since the distance L22 of each of the plurality of protrusions 32 is repeatedly measured, the control device 40 is a distance composed of an average value obtained by dividing the distance L22 measured a predetermined time or a predetermined number of times by the number of times measured. L22 is used to calculate the distance D2 as the wear amount of the anvil 30. The average value is calculated whenever necessary. Further, the distance D22 may be calculated using the measured distance L22 as it is or using the distance L22 obtained by performing processing other than the average value.

  Further, the control device 40 calculates the average value of the distance L11 to the width direction central portion 22 and the distance L12 to the width direction end portion 23, and calculates the distance D1 as the wear amount of the horn 20. I use it. The measured distance L11 and distance L12 may be used as they are, or the distance D1 may be calculated using the distance L11 and the distance L12 obtained by performing processing other than the average value.

  As shown in FIG. 8, the predicted value E20 of the horn 20 is a predetermined amount of wear on the processed surface 21 of the horn 20, and the amount of wear on the processed surface 21 of the horn 20 is preferably in a state where the horn 20 is replaced. It is a value indicating that. The replacement value E21 of the horn 20 is a wear amount that is greater than or equal to the predicted value E20, and indicates that the wear amount of the processed surface 21 of the horn 20 has a possibility of affecting the mechanical strength of the substrate 10. Value. Note that the forecast value E20 and the exchange value E21 are preferably set based on the state of the substrate 10 that is actually manufactured, but other values calculated from experience values, experimental values, and specifications. Etc.

  In the present embodiment, for example, the forecast value E20 and the exchange value E21 of the horn 20 can be set to 25 μm (micrometer). Since the horn 20 is not easily worn, even if a forecast is issued, it is troublesome. Even after reaching the replacement value E21, a margin can be secured for the travel distance and usage time to be replaced, so the forecast value E20 and the replacement value E21 are the same value. I have to. However, different values may be set for the predicted value E20 and the replacement value E21 according to the ease of wear of the horn 20.

  The predicted value E30 of the anvil 30 is a predetermined amount of wear on the processed surface 31 of the anvil 30 and is a value indicating that the amount of wear of the processed surface 31 of the anvil 30 is in a preferable state for replacing the anvil 30. It is. The replacement value E31 of the anvil 30 is a wear amount that is equal to or greater than the predicted value E30, and indicates that the wear amount of the processed surface 31 of the anvil 30 may affect the mechanical strength of the substrate 10. Value. Note that the forecast value E30 and the exchange value E31 are preferably set to values obtained based on the state of the substrate 10 that is actually manufactured, but values calculated from other experience values, experimental values, and specifications. It may be.

  In the present embodiment, for example, the forecast value E30 of the anvil 30 can be set to 65 μm, and the exchange value E31 can be set to 70 μm. Since the anvil 30 is prone to wear, it is not possible to secure a margin for the distance traveled and usage time until it is replaced after reaching the replacement value E31. Therefore, it is preferable to secure a margin for preparing a replacement by issuing a forecast. It is. For this reason, the forecast value E30 is set to a value smaller than the exchange value E31. However, the difference between the predicted value E30 and the replacement value E31 may be changed or the predicted value E30 and the replacement value E31 may be set to the same value in accordance with the difficulty of wearing the anvil 30.

  Further, the predicted value E40 to be compared with the total value of the wear amount is a predetermined wear amount, and the relationship between the wear amount of the machining surface 21 of the horn 20 and the wear amount of the machining surface 31 of the anvil 30 is related to the horn 20 and the anvil. It is a value indicating that it is preferable to replace at least one of 30. The exchange value E41 to be compared with the total value of the wear amount is a wear amount equal to or greater than the predicted value E40, and the relationship between the wear amount of the processed surface 31 of the anvil 30 and the wear amount of the processed surface 31 of the anvil 30 is the substrate 10. It is a value indicating that the state has a possibility of affecting the mechanical strength. The forecast value E40 and the exchange value E41 are preferably set to values obtained based on the state of the substrate 10 actually manufactured, but values calculated from other experience values, experimental values, and specifications. It may be.

  In the present embodiment, the width of the lead 15 is narrower than the width of the horn 20 or the anvil 30. Therefore, the processed surface 21 of the horn 20 and the processed surface 31 of the anvil 30 have a step between the central portion and the end portion, and the generated step may cause a cut on both surfaces of the substrate 10. Therefore, by determining the replacement time of the horn 20 and the anvil 30 based on the total amount of wear, the horn 20 and the anvil 30 are provided with a recess having a depth at which the step formed on the processed surfaces 21 and 31 becomes a problem. It can be appropriately replaced at the previous stage that occurs on both sides.

  In the present embodiment, for example, the total amount forecast value E40 can be set to 75 μm, and the exchange value E41 can be set to 80 μm. Since the total value is a value based on the correlation between the wear amount of the processed surface 21 of the horn 20 and the wear amount of the processed surface 31 of the anvil 30, there is room for preparation for replacement in accordance with the anvil 30 that is easily worn. In order to issue a forecast that can be secured, the forecast value E40 is set to a value smaller than the exchange value E41. However, the difference between the predicted value E40 and the replacement value E41 may be changed or the predicted value E40 and the replacement value E41 may be set to the same value depending on how hard the anvil 30 is worn.

  In the present embodiment, when the total value is 95 μm, there is a high possibility that the lead placement portion 11 to which the lead 15 is bonded is cut from the substrate 10. Further, the calculation result of the wear amount of the processed surface 31 of the anvil 30 includes an error of ± 10 μm including a measurement error, and the calculation result of the wear amount of the processed surface 21 of the horn 20 includes an error of ± 3 μm including the measurement error. Assuming that there is, the exchange value E41 to be compared with the total amount is set to 80 μm.

The operation will be described.
Based on these settings, the control device 40 can determine the replacement time of the horn 20 or the anvil 30 based on the amount of wear of the processed surface 21 of the horn 20 or the amount of wear of the processed surface 31 of the anvil 30. Become. More specifically, the control device 40 determines whether the relationship between the wear amount of the machining surface 21 of the horn 20 and the wear amount of the machining surface 31 of the anvil 30 is in the normal area A1 shown in FIG. It is determined whether it is in the exchange area A3. Then, when the relationship between the wear amount of the machining surface 21 of the horn 20 and the wear amount of the machining surface 31 of the anvil 30 is in the normal region A1, the control device 40 determines that it is not the replacement time, and enters the prediction region A2. If there is, it is determined that the replacement time is predicted, and if it is in the replacement area A3, it is determined that it is the replacement time.

  For example, when the amount of wear on the processed surface 21 of the horn 20 is greater than the predicted value E20, the control device 40 notifies the outside that the horn 20 is close to the replacement time via a display device or alarm device (not shown), When it is larger than the exchange value E21, it is notified through the display device or alarm device that the horn 20 is in the exchange time. Further, when the amount of wear on the processed surface 31 of the anvil 30 is larger than the predicted value E30, the control device 40 notifies that the anvil 30 is close to the replacement time via a display device or an alarm device, and is larger than the replacement value E31. At this time, the anvil 30 is notified to the outside via a display device or an alarm device that it is time to replace it. Further, when the total value of the wear amount of the machining surface 21 of the horn 20 and the wear amount of the machining surface 31 of the anvil 30 is larger than the predicted value E40, the control device 40 confirms that the horn 20 and the anvil 30 are close to the replacement time. Notification is made via a display device or the like, and when it is larger than the exchange value E41, the horn 20 and anvil 30 are notified to the outside via the display device or the like that it is time to exchange. In addition, you may make it notify via a display apparatus or an alarm device that the one with a high wear rate is selected among the horn 20 and the anvil 30 and it is near replacement | exchange time or it is replacement | exchange time.

The effect will be described.
With reference to FIG. 9, the case where the horn 20 is managed by a travel distance and the case of this embodiment are demonstrated. In addition, although the horn 20 is demonstrated here, since it is the same also about the anvil 30, the description is omitted.

  When the replacement time of the horn 20 is managed by the travel distance, a distance that is considered appropriate as a management position is set as the management distance M2. Then, the horn 20 is replaced on the condition that the travel distance of the horn 20 has reached the management distance M2. However, since the wear amount of the horn 20 varies depending on the frictional state between the lead 15 and the like, the wear amount of the horn 20, that is, the distance between the steps of the processed surface 21, just because the horn 20 traveled by the management distance M 2. D1 is not always substantially the same.

  For example, when the friction between the lead 15 and the horn 20 is large due to the influence of the substrate 10 being harder than usual, the wear of the horn 20 progresses quickly (graph FL1 in FIG. 9). May reach the exchange value E21. In this case, in the range B1 from the management distance M2 to the travel distance M1, the wear amount of the horn 20 is greater than or equal to the replacement value E21, so that a recess having a depth that always causes a problem in strength is formed on the substrate 10. There is a risk that an unsatisfactory product will be produced.

  Further, for example, when the friction between the lead 15 and the horn 20 is small due to the influence of the substrate 10 being softer than usual, the progress of wear of the horn 20 is slow (graph FL2 in FIG. 9), and therefore the management distance M2 Then, the amount of wear may not reach the replacement value E21. In this case, the horn 20 that can still be used is exchanged, resulting in waste. In other words, if the distance at which the wear amount of the horn 20 becomes the replacement value E21 is the travel distance M3 longer than the management distance M2, the range B2 from the management distance M2 to the travel distance M3 is wasted. The cost of managing 20 will be increased.

  Therefore, as in this embodiment, by managing the wear amount of the processed surface 21 of the horn 20 with the replacement value E21, the wear amount that needs to be replaced regardless of the travel distance of the horn 20, that is, the level difference of the processed surface 21. When the distance D1 is always substantially the same, it is determined as the replacement time.

  That is, when the wear amount of the horn 20 is large (graph FL1 in FIG. 9), even when the horn 20 is a short travel distance M1, the wear amount reaches the exchange value E21, and is determined as the replacement time. Thus, after the travel distance M1, the manufacture is continued even though the wear amount of the horn 20 is not less than the replacement value E21, and the unsatisfactory substrate 10 in which the concave portion that causes a problem in strength is formed is manufactured. The risk of being lost is prevented.

  Further, when the wear of the horn 20 is small (graph FL2 in FIG. 9), even if the horn 20 has a long travel distance M3, the wear amount reaches the exchange value E21, and is determined as the exchange time. Thereby, it is possible to prevent wasteful replacement of the horn 20 at the management distance M2 even though the wear amount of the horn 20 is less than the replacement value E21. Thereby, the cost concerning management of the horn 20 can be held down.

As described above, according to the inspection method and inspection apparatus of the battery electrode plate manufacturing apparatus of the present embodiment, the effects listed below can be obtained.
(1) The horn 20 and the anvil 30 that constitute a so-called ultrasonic bonding tool, when the wear of the processed surfaces 21 and 31 increases, the ultrasonic bonding between the substrate 10 and the lead 15 of the battery electrode plate is improved. There is a risk that the deformation or the deformation generated on the processed surfaces 21 and 31 due to wear may form a recess in the substrate 10 or the like or may be damaged.

  Since the processing surfaces 21 and 31 wider than the width of the lead 15 have a surface (23) that does not wear at the end in the width direction and a surface (22) that wears at the center in the width direction, these non-wearing surfaces (23 ) And the wear surface (22), the wear amount is calculated on the basis of the distances D1 and D2 that form the step. That is, the wear amount of the processed surface 21 of the horn 20 and the wear amount of the processed surface 31 of the anvil 30 are appropriately calculated. Based on the amount of wear of the machining surface 21 of the horn 20 and the amount of wear of the machining surface 31 of the anvil 30 calculated in this way, the steps generated on the machining surface 21 of the horn 20 are determined by determining the replacement time of these tools. The level | step difference which arises in the process surface 31 of the anvil 30 can manage suitably the recessed part and damage | wound which form in the board | substrate 10 of the electrode plate for batteries.

Further, the replacement time of the horn 20 and the anvil 30 is more appropriately determined without depending on the machined surface shape of the tool.
(2) Since the horn 20 and the anvil 30 sandwiching the substrate 10 generate recesses and scratches on both sides of the substrate 10 due to the steps of the processed surfaces 21 and 31, the recesses formed by the horn 20 and the anvil 30 are particularly formed. In the portion where the concave portions overlap, the thickness of the substrate 10 of the battery electrode plate is reduced, and the strength of the substrate 10 may be reduced.

  In the present embodiment, the replacement timing of the horn 20 and the anvil 30 is determined based on the total amount of wear. That is, the replacement time is determined based on the total amount of wear of the horn 20 and the anvil 30, so that the thickness of the substrate 10 in which the concave portions formed by the horn 20 and the anvil 30 are thinned is set to an appropriate thickness. The replacement time can be determined so that it can be maintained. As a result, the replacement time of the horn 20 and the anvil 30 is determined more appropriately in consideration of the recesses formed on both surfaces of the substrate 10.

  (3) The wear amount of the horn 20 is calculated from the average value of the distance L11 and the distance L12. As a result, for the horn 20 having a flat work surface 21, the influence of a variation in the amount of partial wear generated on the work surface 21 is reduced, and the horn 20 is replaced based on the overall wear tendency of the work surface 21. The time can be determined. That is, it becomes possible to determine the replacement time of a tool surface that is not provided with a protrusion or a machined surface of a tool that is not knurled.

  (4) Even if the processed surface 31 of the anvil 30 has a plurality of protrusions 32, the amount of wear of the processed surface 31 having the plurality of protrusions 32 can be obtained from the amount of wear of the protrusions 32. Thereby, even if it is the anvil 30 which has the process surface 31 in which the protrusion 32 was provided, the replacement | exchange time comes to be determined appropriately. Further, by calculating the wear amount from the projection 32 at the center of the processed surface 31, an appropriate value can be obtained as the wear amount.

  (5) The replacement time of the horn 20 and the anvil 30 can be determined by comparing the total amount of wear with the forecast value E40 and the replacement value E41 corresponding to the total amount. As a result, the replacement time can be easily determined. In other words, the horn 20 and the anvil 30 are moved before the horn 20 and the anvil 30 are cut off on both surfaces of the substrate 10 due to the step between the central portion and the end portion of the processed surface 21 of the horn 20 and the processed surface 31 of the anvil 30 due to wear. Can be replaced appropriately.

  (6) Since the width of the horn 20 or the anvil 30 is wider than the width of the lead 15, a non-wearing surface is generated at the end in the width direction of each processing surface 21, 31. The amount of wear is calculated on the basis of the difference (step) in the distance from the worn surface at the center in the width direction, that is, the so-called depth. As a result, the amount of wear of the processed surfaces 21 and 31 is appropriately calculated.

  (7) One horn is a plane of the end portion 23 in the width direction of the processing surface 21 of the horn 20 that is a plane (a surface that does not wear) and a surface of the center portion 22 in the width direction of the processing surface 21 of the horn 20 (a surface that wears). Since it is measured by the sensor 50, the wear amount can be calculated easily and quickly based on the measured value at the appropriate time.

  (8) The amount of wear is calculated based on the average value of the difference between the height of the protrusion 32 before the work surface 31 of the anvil 30 having a plurality of protrusions 32 and the height of the protrusion 32 each time. . Thereby, the amount of wear of the processed surface 31 of the anvil 30 is appropriately calculated. Note that the height of the protrusion 32 before the work surface 31 of the anvil 30 is worn uses a height value of the protrusion 32 measured when the anvil 30 is replaced, a set value calculated from a design value, or the like. I am doing so.

  (9) Since the anvil sensor 51 measures the protrusion 32 (wearing protrusion) at the center in the width direction of the processed surface 31 of the anvil 30 having a plurality of protrusions 32, the wear amount is calculated at the appropriate time. Can be done based on

(Other embodiments)
In addition, the said embodiment can also be implemented with the following aspects.
-In above-mentioned embodiment, it illustrated about the case where the difference of the height according to the amount of wear arises in the protrusion 32 of the anvil 30. FIG. However, the present invention is not limited thereto, and the protrusion 32 of the anvil 30 may be prevented from having a height difference corresponding to the amount of wear.

  As shown in FIG. 10, the width of the anvil 30 </ b> A may be the same as or smaller than the width of the lead 15. Since a substantially uniform pressing force is applied between the anvil 30A and the substrate 10 corresponding to the portion on which the lead 15 is placed, the width of the anvil 30A is set to the width of the lead 15, and the lead 15 of the substrate 10 is applied. If they are brought into contact with the corresponding positions, the frictional force generated on the plurality of protrusions 32 formed on the anvil 30A is also made uniform.

  As shown in FIG. 11, if the amount of wear generated in the plurality of protrusions 32 is the same, even if each protrusion 32 is worn, there is no difference in the position of each protrusion 32, so that the protrusion 32 forms a recess in the substrate 10. Is prevented.

  That is, the friction amount between the end portion in the width direction of the processed surface 31 of the anvil 30A and the central portion in the width direction of the processed surface 31 is leveled, and the wear amount is also equalized. For this reason, a large level difference is not generated on the processed surface 31 of the anvil 30A, and a hole that causes the anvil 30A to cause a problem in the substrate 10 until the replacement time of the anvil 30 or even if the replacement time is slightly overdue. The risk of forming is reduced.

  Therefore, since it becomes possible to easily manage the replacement time of the anvil 30A while suitably maintaining the height of the protrusion 32 of the processed surface 31 of the anvil 30A, The scope of application can be expanded.

However, even in this case, since a step is generated on the processed surface of the horn, the present inspection method and apparatus for detecting the difference between the center portion and the end portion of the processed surface as the wear amount are useful.
Further, instead of the anvil, the width of the horn may be the same as or less than the width of the lead. By the way, when the horn or anvil is the same as or smaller than the width of the lead, it is necessary to maintain the positional relationship between the horn (or anvil) and the lead in a predetermined relationship with high accuracy. It may be difficult due to equipment. In such a case, since the width of the horn or anvil must be wider than the width of the lead, the present inspection method and inspection apparatus are useful.

  In the above embodiment, the case where the horn sensor 50 is a two-dimensional laser sensor is illustrated. However, the present invention is not limited to this, and the horn sensor may be a one-dimensional sensor as long as the necessary position on the surface of the horn can be measured.

  For example, when a one-dimensional sensor is used, the wear amount can be calculated from the difference between the distances of the two sensors by providing a sensor that measures the widthwise end and a sensor that measures the widthwise center.

  Further, the position of the horn machining surface before being worn is stored, and the wear amount of the horn is calculated from the position measured by the sensor for measuring the central portion in the width direction and the stored machining surface position. Good.

Thereby, the improvement of the freedom degree of a structure of the inspection apparatus of the electrode manufacturing apparatus for batteries is attained.
In the above embodiment, the case where the horn sensor 50 and the anvil sensor 51 are laser sensors is illustrated. However, the horn sensor and the anvil sensor are not limited to this, and a measurement method other than the laser sensor such as image recognition may be applied as long as the distance to the surface of the horn or anvil can be measured. Thereby, the improvement of the freedom degree of a structure of the inspection apparatus of the electrode manufacturing apparatus for batteries is attained.

  -In above-mentioned embodiment, the control apparatus 40 illustrated about the case where the measurement result of the horn sensor 50 or the anvil sensor 51 is used as it is. However, the present invention is not limited to this, and the control device may correct the measurement value from each sensor based on the expansion coefficient or reflectance of the measurement target (horn or anvil). Further, a sensor that can be corrected by an expansion coefficient or a reflectance may be used, and a detection result corrected by the sensor may be output. Thereby, the measurement accuracy of the amount of wear is improved, and the replacement time can be more suitably determined.

  -In above-mentioned embodiment, the case where the processus | protrusion 32 was formed in the process surface 31 of the anvil 30 was illustrated. However, the present invention is not limited to this, and the processing surface of the anvil 30 may be a flat surface or knurled. Thereby, the applicability of the inspection apparatus of the battery electrode plate manufacturing apparatus can be expanded.

  In the above embodiment, the case where the processed surface 21 of the horn 20 is a flat surface is illustrated. However, the present invention is not limited to this, and the processing surface of the horn may have a protrusion or may be knurled. Thereby, the applicability of the inspection apparatus of the battery electrode plate manufacturing apparatus can be expanded.

  -In above-mentioned embodiment, about the case where each exchange time was determined about the horn 20 and the anvil 30 based on each wear amount. However, the present invention is not limited to this, and only the horn wear amount may be measured to determine only the horn replacement time, or only the anvil wear amount may be measured to determine only the anvil replacement time. Also, from the relationship between the horn wear amount and the anvil wear amount, the anvil wear amount is estimated from the horn wear amount to determine the anvil replacement time, or the horn wear amount is estimated from the anvil wear amount. You may determine the replacement | exchange time of a horn. For example, if the wear amount of the horn increases, the amount of vibration transmitted increases and the progress of the wear amount of the anvil can be accelerated. Further, for example, it is conceivable that when the wear amount of the anvil increases, the frictional force decreases and the wear amount of the horn also decreases. This also makes it possible to appropriately determine the replacement time based on the wear amount for the horn or the anvil.

  -In above-mentioned embodiment, the case where the inspection method was applied to the manufacturing apparatus of a positive electrode plate was illustrated. However, the present invention is not limited to this, and the inspection method may be applied to a negative electrode plate manufacturing apparatus. Accordingly, since the negative electrode plate can be suitably manufactured using the inspection method for the battery electrode plate manufacturing apparatus, the application range of the inspection method for such a battery electrode plate manufacturing apparatus can be expanded. It becomes like this.

  In the above-described embodiment, the case where the battery is a nickel metal hydride storage battery has been illustrated. However, the present invention is not limited thereto, and the battery is used in an ultrasonic bonding tool included in a storage battery manufacturing apparatus having a step of ultrasonically bonding a lead to an electrode plate. The inspection method for the electrode plate manufacturing apparatus can be applied.

  In the above embodiment, the case where the battery is a secondary battery has been illustrated, but the present invention is not limited thereto, and the battery may be a primary battery. As a result, the application range of the inspection method for the battery electrode plate manufacturing apparatus can be expanded.

  DESCRIPTION OF SYMBOLS 10 ... Board | substrate, 11 ... Lead arrangement | positioning part, 12 ... Recessed part, 13 ... Hole, 15 ... Lead, 20 ... Horn, 21 ... Processing surface, 22 ... Center part in the width direction, 23 ... End part in the width direction, 30, 30A ... Anvil , 31 ... machining surface, 32 ... projection, 40 ... control device, 50 ... horn sensor, 51 ... anvil sensor, D1, D2 ... distance, L11, L12, L2, L21, L22 ... distance, E20, E30, E40 ... forecast Value, E21, E31, E41 ... Exchange value.

Claims (12)

For a battery comprising a porous body that is sandwiched between a machining surface of the first tool and a machining surface of the second tool by generating ultrasonic vibration between the first tool and the second tool For a battery provided with the first tool and the second tool for ultrasonically bonding a substrate of an electrode plate and a lead having a mechanical strength higher than that of the substrate disposed on the substrate of the battery electrode plate An inspection method for an electrode plate manufacturing apparatus,
At least one of the machining surface of the first tool and the machining surface of the second tool has a width wider than the width of the lead,
A detection step of detecting a step between a center portion corresponding to the position of the lead and an end portion not corresponding to the position of the lead as a wear amount on a processing surface having a width wider than the width of the lead;
When the detected wear amount is larger than a value indicating that the mechanical strength of the substrate of the battery electrode plate made of the porous body may be affected , the first tool and the A determination step of determining a replacement time of at least one of the second tools. A method for inspecting a battery electrode plate manufacturing apparatus. The width of the machining surface of the first tool and the width of the machining surface of the second tool are each wider than the width of the lead,
In the detection step, a step between a center portion corresponding to the position of the lead and an end portion not corresponding to the position of the lead for each of the processing surface of the first tool and the processing surface of the second tool. Detect as wear amount,
In the determination step, the total amount of the wear amount of the machining surface of the first tool and the wear amount of the machining surface of the second tool is determined as the mechanical strength of the substrate of the battery electrode plate made of the porous body. when affect larger than the value indicating that the state in which a, battery plate of claim 1 determining at least one of the replacement timing of the first tool and the second tool Inspection method for manufacturing equipment. In at least one of the first tool and the second tool, the processing surface is a plane,
The inspection method for an electrode plate manufacturing apparatus for a battery according to claim 1 or 2, wherein, in the detection step, the wear amount of the processed surface that is the flat surface is calculated based on an average value of the wear amount of the processed surface that is the flat surface. . At least one of the first tool and the second tool has the processing surface having a plurality of protrusions,
3. The battery electrode plate according to claim 1, wherein, in the detection step, the amount of wear of the processed surface having the plurality of protrusions is calculated based on the amount of wear of the central projection of the processed surface. Inspection method for manufacturing equipment. In the detection step, the wear amount of the processing surface that is the flat surface is based on the depth from the surface of the processing surface that is the flat surface in the width direction to the surface of the processing surface that is the flat surface in the width direction. The inspection method for the battery electrode plate manufacturing apparatus according to claim 3. In the detection step, the depth from the surface in the width direction end of the processed surface that is the flat surface to the surface of the central portion in the width direction of the processed surface that is the flat surface is measured in the range of the width direction of the processed surface that is the flat surface. The inspection method for an electrode plate manufacturing apparatus for a battery according to claim 5 , which is measured by a possible two-dimensional sensor. In the detection step, the amount of wear of the machining surface having the plurality of protrusions is different from the height before the abrasion of the projection in the center in the width direction of the machining surface having the plurality of protrusions. The inspection method for the battery electrode plate manufacturing apparatus according to claim 4, wherein the inspection method is calculated as an average value of distances to the height. In the detection step, the height of each protrusion of the central portion in the width direction of the processed surface having the plurality of protrusions is measured based on the height before the protrusions are worn as a reference. The inspection method of the battery electrode plate manufacturing apparatus according to claim 7 , which is measured by a possible one-dimensional sensor. For a battery comprising a porous body that is sandwiched between a machining surface of the first tool and a machining surface of the second tool by generating ultrasonic vibration between the first tool and the second tool For a battery provided with the first tool and the second tool for ultrasonically bonding a substrate of an electrode plate and a lead having a mechanical strength higher than that of the substrate disposed on the substrate of the battery electrode plate An inspection apparatus for an electrode plate manufacturing apparatus,
At least one of the machining surface of the first tool and the machining surface of the second tool has a width wider than the width of the lead,
A detection unit that detects a step between a center portion corresponding to the position of the lead and an end portion not corresponding to the position of the lead as a wear amount on a processing surface having a width wider than the width of the lead;
When the detected wear amount is larger than a value indicating that the mechanical strength of the substrate of the battery electrode plate made of the porous body may be affected , the first tool and the An inspection device for a battery electrode plate manufacturing apparatus, comprising: a determination unit that determines a replacement time of at least one of the second tools. The width of the machining surface of the first tool and the width of the machining surface of the second tool are each wider than the width of the lead,
The detection unit forms a step between a center portion corresponding to the position of the lead and an end portion not corresponding to the position of the lead for each of the processing surface of the first tool and the processing surface of the second tool. Detect as wear amount,
In the determination unit, the total amount of the wear amount of the machining surface of the first tool and the wear amount of the machining surface of the second tool is set to the mechanical strength of the substrate of the battery electrode plate made of the porous body. The battery electrode plate according to claim 9 , wherein when it is larger than a value indicating that the state has a possibility of having an influence, a replacement time of at least one of the first tool and the second tool is determined. Inspection equipment for manufacturing equipment. In at least one of the first tool and the second tool, the processing surface is a plane,
The inspection device for an electrode plate manufacturing apparatus for a battery according to claim 9 or 10 , wherein the detection unit calculates an amount of wear of a processed surface that is the flat surface based on an average value of the amount of wear of the processed surface. At least one of the first tool and the second tool has the processing surface having a plurality of protrusions,
Wherein the detection unit is battery plate manufacturing according to claim 9 or 10 is calculated based on the amount of wear of the working surface having a plurality of projections on the wear amount of projection of the center of the working surface Equipment inspection device.

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