JP2014220316A - Feeder maintenance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feeder maintenance device capable of improving detection accuracy of sprocket driving torque with a compact constitution.SOLUTION: The feeder maintenance device includes: a loading unit 43 which is brought into contact with a sprocket 13 of a tape feeder 2 attached to a slot 21S to give a load to a sprocket drive motor 12; a loading means driving mechanism (a lever member 42 and lever member oscillating cylinder 45) that drives the loading unit 43 to move vertically between a lower position to bring the same into contact with the sprocket 13 and the upper position to separate the same away from the sprocket 13; and a sprocket driving torque measurement means (driving torque measurement section 20a of a controller 20) that measures the driving torque of the sprocket while driving the sprocket 13 to rotate in a state the loading unit 43 is brought into contact with the sprocket 13 with the loading means moving mechanism.

Description

  The present invention relates to a feeder maintenance apparatus that performs maintenance of a tape feeder that performs a feeding operation of a carrier tape and supplies components to a component supply port.

  The tape feeder is attached to a slot of a feeder base provided in the component mounting machine, and the carrier tape is fed by a sprocket to supply the component to the component supply port. It is necessary to periodically perform maintenance work on such a tape feeder. Conventionally, the tape feeder is attached to a slot adjacent to the slot to which the tape feeder is attached, and the load means is connected to the outer peripheral pin of the sprocket. A feeder maintenance device is known in which the sprocket is driven in the combined state and the driving torque of the sprocket is measured based on the value of the current flowing through the driving means of the sprocket at this time (for example, Patent Document 1). .

JP 2009-302475 A

  However, in the conventional feeder maintenance device described above, the load means is engaged with the outer peripheral pin of the sprocket from the side of the tape feeder, and a space is required beside the tape feeder. However, since it is difficult to stably apply a load to the sprocket, there is a problem that the detection accuracy of the driving torque of the sprocket may be lowered.

  Therefore, an object of the present invention is to provide a feeder maintenance device that can improve the detection accuracy of the sprocket drive torque while having a compact configuration.

  The feeder maintenance device according to claim 1 is a feeder maintenance device that performs maintenance of a tape feeder that feeds a component to a component supply port by performing a carrier tape feeding operation using a sprocket, and a slot in which the tape feeder can be mounted. A load means for contacting the sprocket driving means of the tape feeder attached to the slot, a lower position for bringing the load means into contact with the sprocket, and an upper position for separating the load means from the sprocket. And a load means moving mechanism for moving the sprocket up and down, and a sprocket drive torque measuring means for measuring the drive torque of the sprocket by rotating the sprocket while the load means is in contact with the sprocket by the load means moving mechanism. And be prepared It was.

  The feeder maintenance device according to claim 2 is the feeder maintenance device according to claim 1, wherein the load means is brought into contact with the sprocket by engaging with an outer peripheral pin of the sprocket, whereby the rotation of the sprocket is performed. To follow and rotate around a rotation axis parallel to the rotation axis of the sprocket.

  A feeder maintenance device according to a third aspect is the feeder maintenance device according to the second aspect, wherein the load means has a width larger than a width of the sprocket.

  In the present invention, the load means for contacting the sprocket of the tape feeder attached to the slot moves up and down between a lower position contacting the sprocket of the tape feeder attached to the slot and an upper position separating from the sprocket. In addition, since no space is required beside the tape feeder, the entire apparatus can be made compact, and a load can be stably applied to the sprocket, so that the detection accuracy of the driving torque of the sprocket can be improved.

The perspective view which shows the feeder maintenance apparatus in one embodiment of this invention with a tape feeder The perspective view which shows the state which attached the tape feeder in one embodiment of this invention to the feeder base of the component mounting machine The block diagram which shows the control system of the feeder maintenance apparatus in one embodiment of this invention (A) (b) Operation | movement explanatory drawing of the sprocket drive torque measurement part with which the feeder maintenance apparatus in one embodiment of this invention is provided Explanatory drawing of operation | movement of the feed precision measurement part with which the feeder maintenance apparatus in one embodiment of this invention is provided (A) (b) Operation | movement explanatory drawing of the tape pressing member closing operation part with which the feeder maintenance apparatus in one embodiment of this invention is provided (A) (b) Operation | movement explanatory drawing of the tape pressing member height measurement part with which the feeder maintenance apparatus in one embodiment of this invention is provided The flowchart which shows the execution procedure of the maintenance operation | work of the tape feeder which the feeder maintenance apparatus in one embodiment of this invention performs

  Embodiments of the present invention will be described below with reference to the drawings. A feeder maintenance device 1 shown in FIG. 1 performs maintenance work on a tape feeder 2 used as a component supply unit of a component mounter (not shown). First, the structure of the tape feeder 2 is demonstrated using FIG.

  In FIG. 2, the tape feeder 2 has a connecting portion 11 a extending along the longitudinal direction of the main body 11 (this is the front-rear direction of the tape feeder 2) on the lower surface of the main body 11. A sprocket 13 that is rotationally driven by a sprocket drive motor 12 is provided at the top. A groove-like tape passage 14 is provided on one side surface of the main body 11, and a rear end of the tape passage 14 serves as a tape inlet 15 into which the carrier tape 3 is introduced into the main body 11. The tape feeder 2 is attached to a slot FBS having a connecting portion 11a formed in a feeder base FB of a component mounting machine. As shown in FIG. 2, the feeder base FB is provided with a plurality of slots FBS, and a plurality of tape feeders 2 can be simultaneously attached to the feeder base FB.

  In FIG. 2, a tape pressing member 16 is provided at the front upper part of the main body 11. The tape pressing member 16 has a rear end pivotally supported by the main body 11 by a pivoting member 16p, and a closed position (position shown in FIG. 2) covering the upper region of the sprocket 13 and pressing the carrier tape 3 toward the sprocket 13 side. It is possible to move (open and close) between this closed position and an open position opened upward.

  As shown in the enlarged view of FIG. 2, in the longitudinal direction of the carrier tape 3, component storage portions 3a for storing components P are provided at regular intervals to form a row of component storage portions 3a. A row of feed holes 3b is provided in parallel with the row of 3a. The carrier tape 3 drawn out from a reel (not shown) and entering the tape passage 14 from the tape inlet 15 has a feed hole 3b positioned immediately above the sprocket 13 and an outer peripheral pin 13p of the sprocket 13 rotated by the sprocket drive motor 12. Engage.

  The feeding operation of the carrier tape 3 by the tape feeder 2 is controlled by a control unit (not shown) of the component mounting machine. The control unit of the component mounting machine intermittently rotates the sprocket drive motor 12 to intermittently rotate the sprocket 13, and the sprocket 13 engages the outer peripheral pin 13 p with the feed hole 3 b of the carrier tape 3 and pulls the carrier tape 3. . As a result, the carrier tape 3 intermittently advances in the tape passage 14 from the rear end side to the front end side of the main body portion 11 (arrow A shown in FIG. 2), and the component P in the component storage portion 3a is pressed by the tape. It reaches the component supply port 16a provided in the member 16 at regular time intervals.

  In the enlarged view of FIG. 2, a top tape 3t for preventing the component P from falling off from the component storage portion 3a is provided on the surface (upper surface) of the carrier tape 3 so as to cover the component storage portion 3a. The top tape 3t is peeled off from the carrier tape 3 before the component storage portion 3a reaches the component supply port 16a, and the main body from the top tape pull-out port 16T provided at the rear position of the component supply port 16a of the tape pressing member 16 is provided. It pulls out toward the back of the part 11 (arrow B shown in FIG. 2). The top tape 3t pulled out from the top tape outlet 16T is given an appropriate tension by the tension applying mechanism 17 provided at the middle upper portion in the longitudinal direction of the main body 11, and the top provided at the rear of the tension applying mechanism 17 is provided. The tape is pulled back by the tape pulling unit 18 and collected by the top tape collecting unit 19. The component P supplied from the tape feeder 2 to the component supply port 16a is picked up by a mounting head (not shown) provided in the component mounting machine and mounted on the substrate.

  Next, the configuration of the feeder maintenance device 1 will be described with reference to FIGS. In FIG. 1, the feeder maintenance device 1 includes a flat fixed base 21 and a movable body 22 that can move on the fixed base 21. On the upper surface of the fixed base 21, a slot 21S in which the connecting portion 11a of the tape feeder 2 can be attached in one direction (Y-axis direction) in the horizontal plane is a horizontal plane direction (X-axis direction) perpendicular to the Y-axis direction. Are provided side by side. The operator can attach the tape feeder 2 to the fixed base 21 by inserting the connecting portion 11 a of the tape feeder 2 into the slot 21 </ b> S of the fixed base 21. In a state where the tape feeder 2 is attached to the slot 21S of the fixed base 21, the longitudinal direction of the tape feeder 2 coincides with the Y-axis direction of the feeder maintenance device 1, and the lateral direction of the tape feeder 2 is the X-axis of the feeder maintenance device 1. Match the direction.

  In FIG. 1, a plurality of slide guides 21a are provided on the fixed base 21 so as to extend in the X-axis direction, and the moving body 22 is movable in the X-axis direction along the plurality of slide guides 21a. . A ball screw 23 extending in the X-axis direction is screwed into the moving body 22, and when the ball screw 23 is rotated around the axis by a moving body moving motor 24 attached to the fixed base 21, the moving body 22 is moved to the X-axis. Move in the direction (that is, move relative to the tape feeder 2 attached to the slot 21S). As described above, the feeder maintenance device 1 includes the movable body 22 provided so as to be movable with respect to the tape feeder 2 attached to the slot 21S.

  The operation control of the moving body moving motor 24 is performed by the control device 20 (FIG. 3) provided in the feeder maintenance device 1. Further, the operation control of the sprocket drive motor 12 of the tape feeder 2 attached to the fixed base 21 is also performed from the control device 20 (FIG. 3).

  As shown in FIG. 1, the moving body 22 is provided with a first maintenance work part 26, a tape pressing member closing work part 27, and a second maintenance work part 28. The first maintenance work unit 26 is a work unit that performs maintenance work (first maintenance work) on the tape feeder 2 in a state where the tape pressing member 16 is opened (positioned at the open position). It comprises a drive torque measuring unit 31 (FIG. 4) and a feed accuracy measuring unit 32 (FIG. 5).

  The sprocket drive torque measuring unit 31 performs a sprocket drive torque measurement operation for measuring the drive torque of the sprocket 13 by driving the sprocket 13 from the sprocket drive motor 12 with a load applied to the sprocket 13. The feed accuracy measurement unit 32 performs a feed accuracy measurement operation for measuring the feed accuracy of the carrier tape 3 by the sprocket 13 by detecting the position of the outer peripheral pin 13 p of the sprocket 13.

  The tape pressing member closing working unit 27 (FIG. 6) is a tape pressing member located in the open position after the sprocket driving torque measuring operation by the sprocket driving torque measuring unit 31 and the feeding accuracy measuring operation by the feeding accuracy measuring unit 32 are completed. The tape pressing member closing operation for moving (closing) the member 16 to the closed position is executed.

  The second maintenance work unit 28 is a work unit that performs maintenance work (second maintenance work) on the tape feeder 2 in a state where the tape pressing member 16 is located at the closed position, and measures the height of the tape pressing member. It consists of part 33 (FIG. 7). The tape pressing member height measuring unit 33 performs a tape pressing member height measuring operation for measuring the height of the upper surface of the tape pressing member 16 in a closed state.

  As shown in FIGS. 4A and 4B, the sprocket drive torque measuring unit 31 includes a base 41 provided on the floor surface 22a of the moving body 22, a lever member 42 connected to the base 41, and a lever. A cylindrical loader 43 attached to the member 42 and a lever member swing cylinder 45 for swinging the lever member 42 are provided. The lever member 42 has a downward extending portion 42 a, a backward extending portion 42 b, and a forward extending portion 42 c, and an end portion of the downward extending portion 42 a is pivotally supported on the upper end of the base portion 41 by a pivot pin 46. Yes. The upper end of the lever member swinging cylinder 45 is pivotally supported by a bracket 47 provided on the side surface 22b of the moving body 22, and the lower end of the lever member swinging cylinder 45 is at the end of the front extension 42c of the lever member 42. It is pivotally supported.

  The loader 43 is formed of a cylindrical member attached to the end of the rearward extending portion 42b of the lever member 42 so as to be rotatable about the X axis, and has an outer peripheral tooth engaged with the outer peripheral pin 13p of the sprocket 13 on the outer peripheral surface. Is formed. The loader 43 has a built-in brake mechanism 43a, and the brake mechanism 43a exerts a braking force that prevents the loader 43 from rotating. The braking force of the brake mechanism 43a is adjusted by voltage from the control device 20 (FIG. 3).

  When the sprocket 13 is rotated by the sprocket drive motor 12 in a state where the loader 43 is in contact with the sprocket 13, the loader 43 is driven and rotated in accordance with this, but the driven rotation is braked by the braking force by the brake mechanism 43a. A load corresponding to the braking force acting on the loader 43 from the brake mechanism 43 a acts on the sprocket drive motor 12. As described above, in the present embodiment, the loader 43 is a load unit that comes into contact with the sprocket 13 of the tape feeder 2 attached to the slot 21S and applies a load to the drive unit of the sprocket 13 (sprocket drive motor 12). Yes.

  The forward / backward movement of the piston rod 45a of the lever member swing cylinder 45 is performed by the control device 20 (FIG. 3). When the control device 20 advances and retracts the piston rod 45a of the lever member swing cylinder 45, the lever member 42 swings around the pivot pin 46 accordingly, and the loader 43 is moved to the lower position (FIG. 4B). It moves up and down between the upper position (FIG. 4 (a)). In a state where the loader 43 is positioned at the lower position, the outer peripheral teeth of the loader 43 are in contact (engaged) with the outer peripheral pin 13p of the sprocket 13 of the tape feeder 2, and the loader 43 is positioned at the upper position. Then, the outer peripheral teeth of the loader 43 are separated from the outer peripheral pins 13 p of the sprocket 13. Thus, the lever member 42 and the lever member swing cylinder 45 are load means moving mechanisms that move up and down between a lower position where the loader 43 is brought into contact with the sprocket 13 and an upper position where the loader 43 is separated from the sprocket 13.

  The drive torque measuring unit 20a (FIG. 3) of the control device 20 drives the sprocket 13 by operating the sprocket drive motor 12 in a state where the loader 43 is in contact (engaged) with the sprocket 13. At this time, a current corresponding to the braking force of the brake mechanism 43a flows through the sprocket drive motor 12, and the current is detected by an ammeter 48 (FIG. 4). The current detected by the ammeter 48 is sent to the control device 20, and the drive torque measuring unit 20a of the control device 20 calculates the drive torque of the sprocket 13 by the sprocket drive motor 12 based on the value of the sent current. calculate. Thus, the drive torque measuring unit 20a of the control device 20 measures the drive torque of the sprocket 13 by rotating the sprocket 13 while the loader 43 is in contact with the sprocket 13 by the load means moving mechanism. It has become.

  When the control device 20 performs the sprocket driving torque measuring operation by the sprocket driving torque measuring unit 31, the tape attached to the slot 21S of the fixed base 21 in a state where the tape pressing member 16 is opened (positioned at the open position). After the moving body 22 is moved with respect to the feeder 2 and the loader 43 positioned at the upper position positions the moving body 22 at the sprocket driving torque measurement position positioned above the sprocket 13 (FIG. 4A), The loader 43 is positioned from the upper position to the lower position to bring the loader 43 into contact (engagement) with the sprocket 13. Then, the sprocket drive motor 12 rotates the sprocket 13, and the drive torque of the sprocket 13 is measured based on the value of the current flowing through the sprocket drive motor 12 detected by the ammeter 48.

  The load means used for the above-described sprocket drive torque measurement operation is not limited as long as it is in contact with the sprocket 13 of the tape feeder 2 and applies a load to the sprocket drive motor 12, but as in the present embodiment. The load means (loader 43) comes into contact with the sprocket 13 by engaging with the outer peripheral pin 13p of the sprocket 13, and the sprocket 13 is driven to rotate around a rotation axis parallel to the rotation axis of the sprocket 13. If it is a thing, since a structure becomes simple and manufacturing cost can be made cheap, it is preferable. In such a configuration, if the width of the loader 43 is larger than the width of the sprocket 13, the loader 43 is aligned with the sprocket 13 (positioning of the moving body 22 to the sprocket drive torque measurement position). Is very easy.

  As shown in FIG. 5, the feed accuracy measurement unit 32 includes a measurement camera 51 with the imaging field of view directed downward at the tip of a camera mounting portion 51 a that extends horizontally from the lower surface of the ceiling portion 22 c of the moving body 22. Yes. Imaging operation control by the measurement camera 51 is performed by the control device 20 (FIG. 3). Image data obtained by the imaging operation of the measurement camera 51 is transmitted to the control device 20, and image recognition is performed in the image recognition unit 20b of the control device 20 (FIG. 3).

  The control device 20 performs the feed accuracy measurement operation by the feed accuracy measurement unit 32 in a state where the tape pressing member 16 is opened after the sprocket drive torque measurement operation by the sprocket drive torque measurement unit 31. In the feeding accuracy measurement work, the control device 20 operates the moving body moving motor 24 to move the moving body 22 in the Y-axis direction, and the measurement camera 51 places the tape pressing member 16 in the closed position. The feed accuracy measurement position is located at a position immediately above the supply port 16a (FIG. 5). And the position of the outer periphery pin 13p located in the measurement area | region by imaging one outer periphery pin 13p located in the measurement area | region in the imaging visual field of the camera 51 for a measurement, and performing image recognition based on the obtained image data Is detected. The control device 20 performs the measurement of the position of the outer peripheral pin 13p located in the measurement region within the imaging field of the measurement camera 51, with the sprocket drive motor 12 intermittently rotating the sprocket 13 for all the outer peripheral pins 13p. Based on the result, the feed accuracy calculation unit 20 c of the control device 20 calculates the feed accuracy of the carrier tape 3 by the sprocket 13. Thus, the measurement camera 51 and the feed accuracy calculation unit 20c of the control device 20 serve as feed accuracy measuring means for measuring the feed accuracy of the carrier tape 3 by the sprocket 13.

  As shown in FIGS. 6A and 6B, the upper end of the tape pressing member closing working portion 27 is pivotally supported by a bracket 61 provided on the lower surface of the ceiling portion 22c of the movable body 22 by a pivot pin 61a. A rod 62 is provided. A pressure roller 62a is rotatably provided at the lower end of the rod 62, and an upper end of a rod swing cylinder 64 whose lower end is pivotally supported by a base 63 on the floor surface 22a is pivotally supported at an intermediate portion of the rod 62. ing.

  The forward / backward movement of the piston rod 64a of the rod swing cylinder 64 is performed by the control device 20 (FIG. 3). When the control device 20 advances and retracts the piston rod 64a of the rod swing cylinder 64, the rod 62 swings around the pivot pin 61a accordingly, and the pressing roller 62a in the state where the pressing roller 62a is located at the open position. An upper position (refer to the rod 62 indicated by a one-dot chain line in FIG. 6A) located above the uppermost portion of the tape and a lower position where the upper surface of the tape pressing member 16 in the closed position can be rolled ( 6 (b)) moves in an arc orbit centered on the pivot pin 61a.

  In the control device 20, the tape pressing member closing operation by the tape pressing member closing operation unit 27 is performed after the feeding accuracy measurement operation by the feeding accuracy measuring unit 32 is completed (the tape holding member 16 is opened). )). In the tape pressing member closing operation, the control device 20 operates the moving body moving motor 24 to move the moving body 22 in the Y-axis direction, and the tape pressing member in a state where the pressing roller 62a positioned at the upper position is opened. After moving the moving body 22 to the tape pressing member closing position located above 16 (FIG. 6A), the rod swing cylinder 64 is operated to swing the rod 62 downward (FIG. 6A). ) Arrow C) shown in the figure.

  As a result, the tape pressing member 16 is pressed downward by the pressing roller 62a that rolls on the upper surface while being pressed toward the closed position by the rod 62 abutted from above (FIG. 6A), and is positioned at the closed position. (FIG. 6B). As described above, in the present embodiment, the rod 62 and the rod swing cylinder 64 of the tape pressing member closing working portion 27 are provided on the moving body 22, and the first maintenance working portion 27 (sprocket drive torque measuring portion 31 and feed After the first maintenance work (sprocket driving torque measurement work and feed precision measurement work) by the accuracy measuring unit 32) is completed, the tape pressing member closing means for positioning the tape pressing member 16 located in the open position in the closed position. It has become.

  As shown in FIGS. 7A and 7B, the tape pressing member height measuring unit 33 is provided with an optical sensor 72 via an optical sensor moving cylinder 71 on the lower surface of the ceiling portion 22 c of the moving body 22. Yes. The optical sensor 72 includes a light projecting unit 72a that projects the measurement light L toward the measurement object positioned below, and a light receiving unit 72b that receives the reflected light L1 from the measurement object of the measurement light L projected downward. ing. The movement of the optical sensor 72 in the Y-axis direction is performed by the control device 20 moving the piston rod 71a of the optical sensor moving cylinder 71 forward and backward in the Y-axis direction (FIG. 3). Control and detection of the reflected light L1 are performed by the control device 20 (FIG. 3).

  The height calculation unit 20d (FIG. 3) of the control device 20 calculates the height of the upper surface of the tape pressing member 16 that is the measurement object based on the timing difference between the projection of the measurement light L and the reception of the reflected light L1. To do. As described above, in the present embodiment, the optical sensor 72 of the tape pressing member height measuring unit 33 and the height calculating unit 20d of the control device 20 are provided on the upper surface of the tape pressing member 16 of the tape feeder 2 attached to the slot 21S. This is a tape pressing member height measuring means for measuring the height.

  The control device 20 performs the tape pressing member height measuring operation by the tape pressing member height measuring unit 33, and the tape pressing member 16 is closed after the tape pressing member closing operation by the tape pressing member closing operation unit 27 is completed. In the closed position. In the tape pressing member height measurement operation, the control device 20 operates the moving body moving motor 24 to move the moving body 22 in the Y-axis direction, and the tape pressing member in which the optical sensor 72 is positioned above the tape pressing member 16. After the moving body 22 is positioned at the height measurement position, the upper surface of the tape pressing member 16 is projected by projecting the measurement light L from the optical sensor 72 and receiving the reflected light L1 reflected from the upper surface of the tape pressing member 16. Measure the height.

  In this tape pressing member height measurement operation, the height of at least two positions on the upper surface of the tape pressing member 16 is measured. The two locations are preferably two locations located on both sides of the component supply port 16 a on the upper surface of the tape pressing member 16. Therefore, in the present embodiment, the height of the front position of the component supply port 16a on the upper surface of the tape pressing member 16 (FIG. 7A) and the rear position of the component supply port 16a on the upper surface of the tape pressing member 16 are measured. Is measured (FIG. 7B). Here, the height measuring point on the upper surface of the tape pressing member 16 is changed by operating the optical sensor moving cylinder 71 from the controller 20 and moving the optical sensor 72 in the front-rear direction of the tape feeder 2.

  As described above, the feeder maintenance apparatus 1 according to the present embodiment is attached to the mobile body 22 in the slot 21S in a state where the mobile body 22 is positioned at the first work position (sprocket drive torque measurement position and feed accuracy measurement position). A first maintenance work section (sprocket drive torque measurement section 31 and feed accuracy measurement section 32) for performing a first maintenance work (sprocket drive torque measurement work and feed accuracy measurement work) on the tape feeder 2; A second maintenance work (tape presser) different from the first maintenance work on the tape feeder 2 attached to the slot 21S in a state where the body 22 is located at the second work position (tape presser member height measuring position). Second maintenance work part (tape pressing member height measurement) for executing member height measurement work Comprises a 33), by a mobile moving motor 24 is a moving member movement mechanism, and is designed to move the moving body 22 between a first working position and a second working position.

  Next, the execution procedure (feeder maintenance method) of the maintenance work of the tape feeder 2 by the feeder maintenance apparatus 1 will be described with reference to FIG. In the maintenance work of the tape feeder 2, first, an operator sets the tape pressing member 16 of the tape feeder 2 to be subjected to the maintenance work to an opened state (step ST1, a tape pressing member releasing step). . Then, the connecting portion 11a of the tape feeder 2 with the tape pressing member 16 opened is inserted into the slot 21S, and the tape feeder 2 is attached to the fixed base 21 (step ST2, tape feeder attaching step).

  When the operator attaches the tape feeder 2 to the fixed base 21, the operator inputs a predetermined work start operation input from the input device SB (FIG. 3) connected to the control device 20 (step ST3, work start operation step). When the control device 20 detects a signal of an operation input performed by the operator, the control device 20 controls the operation of the moving body moving motor 24 to position the moving body 22 at the sprocket driving torque measuring position, and the sprocket driving torque measuring unit 31 causes the sprocket driving torque measuring unit 31 to control A drive torque measurement operation is executed (step ST4, sprocket drive torque measurement step).

  After executing the sprocket driving torque measuring step by the sprocket driving torque measuring unit 31, the control device 20 controls the operation of the moving body moving motor 24 to position the moving body 22 at the feed accuracy measuring position, and the feed accuracy measuring unit 32 A feed accuracy measurement operation is executed (step ST5, feed accuracy measurement step).

  The control device 20 performs the feed accuracy measurement work by the feed accuracy measuring unit 32, and when the first maintenance work is completed, the operation control of the moving body moving motor 24 is performed to move the moving body 22 to the tape pressing member closing position. The tape pressing member closing operation section 27 executes the tape pressing member closing operation (step ST6, tape pressing member closing step). As a result, the tape pressing member 16 is closed, and the second maintenance operation can be performed.

  When the tape pressing member closing operation unit 27 performs the tape pressing member closing operation, the control device 20 controls the operation of the moving body moving motor 24 so that the moving body 22 is positioned at the tape pressing member height measurement position. A tape pressing member height measuring operation is executed by the member height measuring unit 33 (step ST7, tape pressing member height measuring step).

  When the tape pressing member height measuring unit 33 performs the tape pressing member height measuring operation, the control device 20 performs the measurement value (driving torque of the sprocket 13) obtained in the sprocket driving torque measuring step in step ST4, and the step ST5. The measurement value (feed accuracy of the carrier tape 3) obtained in the feed accuracy measurement process and the measurement value (height of the upper surface of the tape press member 16) obtained in the tape press member height measurement process in step ST7 are used as the respective references. Compared with the value, the determination unit 20e (FIG. 3) determines whether or not each measurement value is abnormal (step ST8, determination step). More specifically, the determination unit 20e compares the drive torque value of the sprocket 13 measured in step ST4 with the reference value to determine whether it is abnormal, and determines the carrier tape by the sprocket 13 measured in step ST5. 3 is compared with the reference value to determine whether it is abnormal, and it is determined whether it is abnormal by comparing the height of each measurement point measured in step ST7 with the reference value. To do.

  When it is determined in step ST8 that none of the measured values is abnormal, the control device 20 ends the maintenance work. On the other hand, if the control device 20 determines in step ST8 that one of the measured values is abnormal, the control device 20f (FIG. 3) controls the operation of the alarm device AN (FIG. 3) such as a display device. After performing the abnormality notification operation to the worker (step ST9, abnormality notification step), the maintenance work is finished.

  As described above, in the present embodiment, the determination unit 20e of the control device 20 measures the measurement value obtained by measuring the drive torque of the sprocket 13 by the sprocket drive torque measurement means (drive torque measurement unit 20a of the control device 20). The measurement value obtained by measuring the feeding accuracy of the carrier tape 3 by the sprocket 13 by the feeding accuracy measuring means (measuring camera 51 and the feeding accuracy calculating unit 20c of the control device 20) and the tape pressing member height measuring means (tape pressing member). Each of the measured values obtained by measuring the height of the tape pressing member 16 by the optical sensor 72 of the member height measuring unit 33 and the height calculating unit 20d) of the control device 20 is compared with a reference, and the measured value is obtained. It is a determination means for determining whether or not there is an abnormality. Further, the notification control unit 20f and the notification device AN of the control device 20 serve as notification means for performing a notification operation when the determination unit 20e determines that the measured value is abnormal.

  Since a plurality of slots 21S on the fixed base 21 are arranged side by side in the moving direction (X-axis direction) of the moving body 22 as described above, a plurality of tape feeders 2 to be subjected to maintenance work are attached to the fixed base 21. If attached, the maintenance work for the plurality of tape feeders 2 can be performed automatically and continuously.

  As described above, in the feeder maintenance device 1 according to the present embodiment, the loader 43 that contacts the sprocket 13 of the tape feeder 2 attached to the slot 21S contacts the sprocket 13 of the tape feeder 2 attached to the slot 21S. The upper device moves up and down between the lower position and the upper position away from the sprocket 13, and since no space is required beside the tape feeder 2, the entire apparatus can be configured compactly. Since the load can be stably applied, the detection accuracy of the driving torque of the sprocket 13 can be improved.

  Provided is a feeder maintenance device that can improve the detection accuracy of a sprocket drive torque while having a compact configuration.

DESCRIPTION OF SYMBOLS 1 Feeder maintenance apparatus 2 Tape feeder 3 Carrier tape 12 Sprocket drive motor (Sprocket drive means)
13 sprocket 13p outer peripheral pin 16a parts supply port 20a drive torque measuring unit (sprocket drive torque measuring means)
21S slot 42 lever member (load means moving mechanism)
43 loader (loading means)
45 Lever member swing cylinder (load means moving mechanism)
P parts

Claims (3)

A feeder maintenance device that performs maintenance of a tape feeder that feeds components to a component supply port by performing a carrier tape feeding operation by a sprocket,
A slot in which the tape feeder can be attached;
Loading means for contacting the sprocket of the tape feeder attached to the slot and applying a load to the driving means of the sprocket;
A load means moving mechanism for moving up and down between a lower position where the load means is brought into contact with the sprocket and an upper position where the load means is separated from the sprocket;
A feeder maintenance device comprising sprocket driving torque measuring means for measuring the driving torque of the sprocket by rotating the sprocket while the load means is in contact with the sprocket by the load means moving mechanism.   The load means contacts the sprocket by engaging with an outer peripheral pin of the sprocket, and is driven to rotate about a rotation axis parallel to the rotation axis of the sprocket by the rotation of the sprocket. Feeder maintenance device as described in 1.   The feeder maintenance device according to claim 2, wherein the load means has a width larger than a width of the sprocket.

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