JP2017092200A - Component mounter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a component mounter (1) including a suction nozzle (203) loaded removably to the lower end of a lift shaft (204), and sucking a component (P) at the lower end, first lifting devices (18, 82) for lifting and lowering the lift shaft (204) for the head body (203), a jig (9) used for correction of the loading state of the lower end of the lift shaft (204) and suction nozzle (203), and a detector (K) for detecting the position of the lower end of the suction nozzle (203) for the head body (12).SOLUTION: When a suction nozzle (203) is replaced, the lower end of the suction nozzle (203) is pressed against the upper surface of a jig (9) by actuating first lifting devices (18, 82). Thereafter, position of the lower end of the suction nozzle (203) is detected by a detector (K), and at least one of the positioning of the suction nozzle (203) when sucking a component (P) and the positioning of the suction nozzle (203) when mounting the component (P) on a substrate (PB) is performed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a component mounter.

  For example, Patent Document 1 describes a component mounter including a component mounting head that sucks components and mounts them on a substrate. The component mounting head includes an elevating shaft that is movably held by the head body, and a suction nozzle that is detachably held at a lower end portion of the elevating shaft and sucks components. The suction nozzle has a base and a movable part that can move up and down relative to the base. The movable part is urged downward by a compression spring, and when the lower end of the movable part comes into contact with the part and sucks the part, the movable part moves upward to absorb the impact at the time of contact.

  When such a suction nozzle is not used for a long time, sliding between the base and the movable part becomes awkward and normal component suction may not be expected. For this reason, when the suction nozzle is replaced, this component mounting machine improves the sliding between the base and the movable portion by pressing the tip of the movable portion against the upper surface of the rigid block before the component suction to expand and contract the compression spring. I am doing so.

JP 2010-251351 A

  In a general component mounter, in order to accurately pick up a component with the replaced suction nozzle, the position of the lower end of the suction nozzle is imaged immediately after replacement of the suction nozzle and image processing is performed, thereby shifting the deviation from the design value. Is corrected. However, when the suction nozzle is replaced, the position of the suction nozzle with respect to the lifting / lowering shaft may not be settled, and in this case, the position of the lower end portion of the suction nozzle may fluctuate before and after suction of the parts and before and after mounting. The component mounting machine described above aims to improve the sliding between the suction nozzle base and the movable part, and does not take into account the improvement of the suction nozzle sitting on the lifting shaft. Therefore, with the replaced suction nozzle, the accuracy of suction and mounting of the components tends to decrease.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a component mounting machine that can improve seating and mounting accuracy of components by improving the sitting of the replaced suction nozzle with respect to the lifting shaft. .

  In order to solve the above-described problems, a component mounter according to the present invention is a component mounter that sucks a supplied component and transfers and mounts it on a substrate to be transported. A lifting shaft that can be moved up and down, a suction nozzle that is detachably mounted on a lower end portion of the lifting shaft, and sucks a component at the lower end portion, and a first lifting that lifts the lifting shaft with respect to the head body An apparatus, a jig base used to correct the loading state of the lower end portion of the lifting shaft and the suction nozzle, and a detection device that detects the position of the lower end portion of the suction nozzle with respect to the head body, and the suction When the nozzle is replaced, the first lifting device is operated to press the lower end portion of the suction nozzle against the upper surface of the jig base, and after the pressing, the position of the lower end portion of the suction nozzle is detected by the detection device. And the detection device The positioning and the component suction nozzle at the time of adsorbing the component based on the result out performing at least one of the positioning of the suction nozzle when mounted on the substrate.

  Thus, since the lower end part of the replaced suction nozzle is pressed against the upper surface of the jig base, the suction nozzle is improved in sitting on the lifting shaft. The position of the lower end portion of the suction nozzle after the pressing is suppressed even before and after the component suction and before and after the mounting. Therefore, it is possible to improve the positioning accuracy of the suction nozzle by picking up or mounting the component based on the detection position of the lower end of the suction nozzle in a state where fluctuation is suppressed, and the occurrence of misalignment or mistake in the suction or mounting of the component. Can be prevented.

It is the figure which looked at schematic structure of the component mounting machine of embodiment of this invention from upper direction. It is the figure which looked at the component mounting head in the horizontal direction. It is the partial cross section figure which looked at the suction nozzle periphery of the component mounting head horizontally. FIG. 4 is a partial cross-sectional view of the vicinity of the suction nozzle as seen from the direction of arrow A in FIG. 3. It is a flowchart for demonstrating operation | movement of a component mounting head. It is a graph which shows a time-dependent change at the time of component mounting of the pressing force to a suction nozzle. It is the figure which looked at the outline of the component mounting head provided only with a 1st raising / lowering device in the horizontal direction.

(1. Component mounter configuration)
Hereinafter, a component mounter according to an embodiment of the present invention will be described with reference to the drawings. In the drawing, the substrate transport direction is referred to as the Y direction, the direction perpendicular to the Y direction and the horizontal direction is referred to as the X direction, and the direction perpendicular to the X and Y directions is referred to as the Z direction. This Z direction is an elevating direction (vertical direction) described below.

As shown in FIG. 1, the component mounter 1 includes a substrate transfer device 2, a component supply device 3, a component transfer device 4, and the like.
The substrate transport device 2 is a conveyor-type transport device, and transports the substrate PB to the component mounting position with the pair of conveyor belts 6a and 6b while guiding the substrate PB with the pair of guide rails 5a and 5b. , 6b is pushed up and clamped to fix the positioning.

The component supply device 3 includes a plurality of cassette-type feeders F on which a reel R around which a carrier tape containing a plurality of components is wound can be mounted. The carrier tape is pulled out from the reel R at a predetermined pitch, and the components are removed. Feed sequentially to the front of the feeder F.
The component transfer device 4 is a device that sucks and transfers the components, and moves the head while sucking and lifting the components sent to the front part of the feeder F by the suction nozzle 22 of the rotary component mounting head 10. Along the rails 8a, 8b, and 8c, the substrate PB is positioned at the component mounting position, and the suction nozzle 22 is lowered to mount the component at the component mounting position on the substrate PB.

Further, the component mounting machine 1 includes a camera K (corresponding to the “detection device” of the present invention), a nozzle station S, and a jig base 9.
The camera K is a CCD image pickup device, and is arranged between the substrate transfer device 2 and the component supply device 3 so that an image can be taken from below. The camera K is used to detect the position of the lower end portion of the suction nozzle 22 with respect to the head main body 12 (see FIG. 2) of the component mounting head 10 based on the captured image of the lower end portion of the suction nozzle 22. Further, it is used for detecting the posture of the component based on the image of the component sucked by the picked-up suction nozzle 22.

  The nozzle station S includes a rectangular parallelepiped storage container Sb in which a plurality of nozzle storage holes Sa are provided, and is provided on the right side in the figure with respect to the camera K between the substrate transfer device 2 and the component supply device 3. The nozzle station S accommodates a plurality of types of suction nozzles 22 for replacement of the suction nozzles 22 loaded in the component mounting head 10 in a plurality of nozzle housing holes Sa.

  The jig base 9 is a rectangular parallelepiped block made of metal or plastic, and is provided on the left side in the figure with respect to the camera K between the board transfer device 2 and the component supply device 3. Although details will be described later, the jig base 9 is used to correct the loading state of the suction nozzle 22 with respect to the lower end portion of the lifting shaft 14 (see FIG. 2) of the component mounting head 10 when the suction nozzle 22 is replaced. Used. It is also used when the mounting operation of the component is performed on the upper surface in order to adjust the mounting state of the component sucked by the suction nozzle 22.

(2. Configuration of component mounting head)
As shown in FIG. 2, the component mounting head 10 is held by a head main body 12, an elevating shaft 14 that can be moved up and down by the head main body 12 and rotatable about the Z axis, and can be moved up and down by the elevating shaft 14. The suction nozzle 22, a first lifting device that lifts and lowers the lifting shaft 14 relative to the head body 12, a second lifting device that lifts and lowers the suction nozzle 22 relative to the lifting shaft 14, and the lifting shaft 14 rotates relative to the head body 12. A rotation device, and a control device 110 that controls operations of the first and second lifting and lowering devices, the rotation device, and the like.

  The first lifting device includes the first linear motor 18 and the first lifting drive member 82, and the second lifting device includes the second linear motor 80, the second lifting drive member 85, the roller 86, the load cell 106, and the urging force. It is composed of a spring 58 and the like. The rotating device includes a rotating motor 102 and gears 100 and 104. A first linear motor 18, a second linear motor 80, a load cell 106, a rotation motor 102, and an air control valve 67 are connected to the control device 110.

  When the component mounting head 10 mounts the component P sucked by the suction nozzle 22 on the substrate PB, the first linear motor 18 causes the first lifting drive member 82 to prevent the component P from being subjected to an impact due to an excessive mounting force. The lift shaft 14 and the second linear motor 80 are lowered by lowering, and the second linear motor 80 presses and lowers the suction nozzle 22 by lowering the second lift drive member 85 and the roller 86. Before the mounting of the components, the rotary motor 102 rotates the suction nozzle 22 together with the lifting shaft 14 as necessary to correct or change the rotational posture of the component P sucked by the suction nozzle 22.

The head main body 12 guides the lifting and lowering of the shaft holding portion 16 that holds the lifting shaft 14 so that it can be raised and lowered, the motor holding portion 20 that holds the first linear motor 18 fixedly, and the first lifting drive member 82. A pair of guides 92 and a rotary motor 102 are provided.
The suction nozzle 22 has a nozzle part 34, a flange part 32, and a holder part 26. Although details will be described later, the suction nozzle 22 is configured such that the nozzle portion 34, the flange portion 32, and the holder portion 26 can be integrally attached to and detached (replaced) from the lifting shaft 14.

  As shown in FIGS. 3 and 4, the nozzle portion 34 is formed in a tubular shape capable of adsorbing the component P at the lower end portion. The flange portion 32 is fixedly attached to the disc portion 30, a hollow shaft portion 28 formed through the center of the disc portion 30 integrally with the disc portion 30, and the upper surface of the disc portion 30. And a cylindrical spring holding cylinder 36. A nozzle portion 34 is fitted into the lower end portion of the shaft portion 28, and a bearing 37 having a spline function that is fitted into the lower inner periphery of the holder portion 26 is fitted to the outer periphery of the shaft portion 28 above the disc portion 30. Combined. Thereby, the flange part 32 is hold | maintained with respect to the holder part 26 so that raising / lowering is possible.

  The holder portion 26 is formed in a cylindrical shape, and a lid 60 is attached to the upper end thereof. The upper outer periphery is detachably held in the mounting hole 23 in the lower end portion of the lifting shaft 14, and the lower outer periphery is a spring holding cylinder of the flange portion 32. 36. An outer flange 56 is provided at the lower end of the holder portion 26, an inner flange 54 is provided at the upper end of the spring holding cylinder 36, and an urging spring 58, which is a compression coil spring, is connected to the outer flange 56 and the inner flange. 54 is disposed between the holder portion 26 and the spring holding cylinder 36 in a state where both ends are supported by the spring 54.

  In the upper part of the shaft part 28 of the flange part 32, a long hole 42 that is long in the vertical direction penetrating in the lateral direction is provided. On the other hand, the holder portion 26 is provided with a pair of holes 44 at positions facing the elongated holes 42. The locking pin 46 (corresponding to the “pin member” of the present invention) is fixed to the holder portion 26 so as to pass through the long hole 42 and the pair of holes 44. The portions of both ends of the locking pin 46 extending from the holder portion 26 are engaged with a pair of J slots 48 provided at the lower portion of the elevating shaft 14 (see FIG. 2). The locking pin 46 that engages with the pair of J slots 48 is fixed by a locking mechanism including a compression coil spring 50 and a locking ring 52 that are inserted into the outer periphery of the lower part of the lifting shaft 14. As a result, the suction nozzle 22 can be attached to and detached from the lifting shaft 14 via the pair of J slots 48.

  With the above configuration, the holder portion 26 is restricted from being lifted and lowered with respect to the lifting shaft 14. On the other hand, the flange portion 32 has a movable portion restricted by the long hole 42 and the locking pin 46, that is, the holder portion 26 (elevating / lowering) by an amount corresponding to the difference between the length of the long hole 42 and the diameter of the locking pin 46. The shaft 14) can be moved up and down. 3 and 4, the urging spring 58 urges the flange portion 32 upward with respect to the lifting shaft 14, and the flange portion 32 is positioned at the rising end in the movable range.

  Returning to FIG. 2, a first elevating drive member 82 is attached to the first linear motor 18. The first elevating drive member 82 extends in the Z direction along the axis of the elevating shaft 14 on the outer side of the shaft holding portion 16 of the head body 12, an engaging portion 84 is provided in the middle portion, and a second end is provided at the lower end portion. The linear motor 80 is held. The first linear motor 18 moves the lifting shaft 14 and the second linear motor 80 together with the first lifting drive member 82.

  A second elevating drive member 85 is attached to the second linear motor 80. The second lifting / lowering drive member 85 extends in the Z direction along the axis of the suction nozzle 22, has a load cell 106 at the intermediate portion, and a roller that contacts the upper surface 30 a of the disk portion 30 of the flange portion 32 at the lower end portion. 86 is held rotatably. The second linear motor 80 raises and lowers both the load cell 106 and the roller 86 by the second raising / lowering drive member 85.

  The second linear motor 80 lowers the flange portion 32 relative to the holder portion 26 by pressing the upper surface 30 a of the disc portion 30 of the flange portion 32 downward against the urging force of the urging spring 58 with the roller 86. Then, the flange portion 32 is raised relative to the holder portion 26 by the biasing force of the biasing spring 58 by loosening the pressing force of the roller 86. That is, the second linear motor 80 moves the suction nozzle 22 up and down with respect to the lifting shaft 14. The load cell 106 detects the pressing force in the Z direction when the disk portion 30 is pressed by the roller 86. That is, the detected pressing force of the load cell 106 is such that the upward force that the urging spring 58 acts on the suction nozzle 22 and the substrate PB acts on the suction nozzle 22 via the component P when the component P is mounted on the substrate PB. It is the sum of upward force.

  The gear 104 fixed to the rotating shaft of the rotary motor 102 is engaged with the gear 100 fixed above the flange 88 of the lifting shaft 14. The gears 100 and 104 transmit the rotation of the rotary motor 102 to the lifting shaft 14 while allowing the lifting shaft 14 to move up and down. The rotation of the lifting shaft 14 is transmitted to the suction nozzle 22 by the engaged J slot 48, the locking pin 46, and the bearing 37 having a spline function.

(3. Functions of the second lifting device)
The component mounting head 10 includes a second lifting device, and the function of the second lifting device will be described. In the component mounting head 10, when the component P is sucked by the suction nozzle 22 or when the component P sucked by the suction nozzle 22 is mounted on the substrate PB, the component P may be impacted by an excessive pressing force or mounting force. There is. Further, if the component P is not pressed against the substrate PB with the set mounting force, the component P may not be reliably mounted on the cream solder printed on the substrate PB. The control device 110 detects by the load cell 106 shown in FIG. 6 in order to reduce the impact received by the component P with an excessive pressing force or mounting force and to press the component P against the substrate PB with an appropriate pressing force or mounting force. Based on the pressing force, the pressing force of the second linear motor 80 against the disc portion 30 of the roller 86 is controlled.

  The control device 110 operates the first linear motor 18 to lower the suction nozzle 22 when mounting the component. However, during the period A until the component P shown in FIG. The second linear motor 80 is operated so that the flange portion 32 of the suction nozzle 22 is lowered by a predetermined amount with respect to the holder portion 26 while being compressed. That is, the control device 110 continues to detect the time when the component P is in contact with the substrate PB based on the change in the detected pressing force by the load cell 106, and when detecting the time when the component P is in contact with the substrate PB, In order to reduce the applied pressing force or mounting force to the set pressing force or mounting force, feedback control for reducing the current supplied to the second linear motor 80 is performed, and the roller 86 with respect to the disc portion 30 is controlled. Reduce the pressing force.

  The control device 110 performs at least two control cycles until the pressing force or mounting force applied to the component P exceeds the set pressing force or mounting force when the component P contacts the substrate PB. The high-frequency control system can be executed, and the feedback control response is good. If the feedback control is poor in responsiveness, as indicated by a two-dot chain line in FIG. 6, the pressing force or mounting force applied to the component P at the time of contact increases, but the feedback control of the control device 110 is responsive. Therefore, as shown by the solid line in FIG. 6, the pressing force or mounting force applied to the component P at the time of contact is suppressed to be small.

(4. Operation of component mounting head)
Next, the operation of the component mounting head 10 will be described with reference to the flowchart of FIG. It is assumed that the substrate PB is transported to the component mounting position in the substrate transport device 2 and positioned, and the component P is supplied by the feeder F in the component supply device 3.

  The control device 110 determines whether or not it is necessary to replace the suction nozzle 22 of the component mounting head 10 (step S1 in FIG. 5). When it is determined that the suction nozzle 22 needs to be replaced, the component mounting head 10 is moved above the empty accommodation hole Sa of the nozzle station S (step S2 in FIG. 5). And the raising / lowering shaft 14 is lowered | hung and the suction nozzle 22 currently loaded in the empty accommodation hole Sa is delivered (step S3 of FIG. 5). Next, the elevating shaft 14 is raised and moved above the accommodation hole Sa in which the suction nozzle 22 to be loaded is accommodated (step S4 in FIG. 5). And the raising / lowering axis | shaft 14 is dropped and the adsorption | suction nozzle 22 accommodated in the said accommodation hole Sa is loaded (step S5 of FIG. 5).

  Next, the control device 110 raises the lifting shaft 14 and moves it above the jig base 9 (step S6 in FIG. 5). Then, the lower end portion of the nozzle portion 34 of the suction nozzle 22 loaded by lowering the elevating shaft 14 is pressed against the upper surface of the jig base 9 with the same force as at the time of actual component suction (step S7 in FIG. 5). Subsequently, the elevating shaft 14 is raised once, the elevating shaft 14 is lowered again, and the lower end of the nozzle portion 34 is pressed against the upper surface of the jig base 9 with the same force as that used in actual component mounting (step of FIG. 5). S8).

  When the suction nozzle 22 is replaced, the suction nozzle 22 may not be seated with respect to the elevating shaft 14, and in this case, the position of the lower end portion of the nozzle portion 34 may change before and after the component P is sucked. By pressing the lower end portion of the nozzle portion 34 against the upper surface of the jig base 9 described above, the seating of the suction nozzle 22 on the lifting shaft 14 can be improved. When a plurality of suction nozzles 22 of the rotary type component mounting head 10 are replaced, the above-described pressing operation is performed by lowering each lifting shaft 14 while rotating the rotary type component mounting head 10.

  Next, the control device 110 determines whether or not two cycles have been performed with the above-described abutment of the two times on the upper surface of the jig base 9 as one cycle (step S9 in FIG. 5), and determines that two cycles have been performed. If so, the component mounting head 10 is moved above the camera K (step S10 in FIG. 5). And the lower end part of the nozzle part 34 is imaged (step S11 of FIG. 5), the image of the lower end part of the imaged nozzle part 34 is analyzed, and the position of the lower end part of the nozzle part 34 with respect to the head body 12 of the component mounting head 10 Is obtained (step S12 in FIG. 5).

  Next, the control device 110 positions the suction nozzle 22 by moving the component mounting head 10 above the front portion of the feeder F based on the obtained position of the lower end portion of the nozzle portion 34 (step of FIG. 5). S13). And the raising / lowering shaft 14 is lowered | hung and the components P are adsorbed | sucked by the lower end part of the nozzle part 34 (step S14 of FIG. 5). In this case, since the sitting of the suction nozzle 22 with respect to the lifting shaft 14 is improved, the position of the lower end portion of the nozzle portion 34 does not change before and after the suction of the component P.

  Next, the control device 110 raises the lifting shaft 14 and moves the component mounting head 10 above the substrate PB based on the obtained position of the lower end portion of the nozzle portion 34 to position the suction nozzle 22 ( Step S15 in FIG. Then, the elevating shaft 14 is lowered to mount the component P adsorbed on the lower end portion of the nozzle portion 34 on the substrate PB (step S16 in FIG. 5). In this case, since the seating of the suction nozzle 22 with respect to the lifting shaft 14 is improved, the position of the lower end portion of the nozzle portion 34 does not change before and after the component P is mounted.

  The control device 110 releases the negative pressure supplied to the nozzle side passage 68 of the suction nozzle 22 via the first air passage after the set time has elapsed after contacting the part P with the substrate PB, and the suction nozzle of the part P The suction to 22 is released, and the elevating shaft 14 is raised. Then, it is determined whether or not the component mounting process is completed (step S17 in FIG. 5). When the component mounting process is not completed, it is necessary to return to step S1 and replace the suction nozzle 22 of the component mounting head 10. When it is determined that there is no need to replace the suction nozzle 22, the process proceeds to step S13 and the above-described processing is repeated. On the other hand, when the component mounting process is completed in step S17, all the processes are terminated.

(5. Different forms)
In the above-described embodiment, the component mounting machine capable of improving the sitting of the suction nozzle 22 and the lifting shaft 14 of the component mounting head 10 including the first lifting devices 18 and 82 and the second lifting devices 80, 85, 86, 106 and 58. 1 was explained. However, the suction nozzle 203 including the nozzle portion 201 and the holder portion 202 of the component mounting head 200 (see FIG. 7) that does not include the second lifting devices 80, 85, 86, 106, and 58 but includes only the first lifting devices 18 and 82. The pressing of the lower end portion of the nozzle portion 201 against the upper surface of a jig base (not shown) can also be applied to a component mounter that can improve the sitting of the lifting shaft 204.

  As shown in FIG. 7, the nozzle part 201 is held by a holder part 202 via a compression coil spring 205. The nozzle portion 201 is urged downward by a compression coil spring 205 and is lifted by contraction of the compression coil spring 205 due to a pressing force at the time of component adsorption and mounting. The holder 202 is detachably held with respect to the lifting shaft 204 via a locking pin 206 (corresponding to a “pin member” of the present invention). Even in such a component mounting head 200, when the suction nozzle 203 is replaced, the suction nozzle 203 may not be seated with respect to the lifting shaft 204, and the lower end portion of the nozzle portion 201 on the upper surface of the jig base may be lowered. The sitting can be calmed down by applying the pressing.

(6. Effect)
The component mounter 1 according to the present embodiment is a component mounter 1 that sucks a component P to be supplied, transfers the component P onto a substrate PB to be transported, and mounts the component P on the substrate PB. The lifting / lowering shaft 204 held by the lower / lower portion of the lifting / lowering shaft 204, the suction nozzle 203 that sucks the component P at the lower end, and the first lifting / lowering that raises / lowers the lifting / lowering shaft 204 relative to the head body 12. Devices 18, 82, a jig base 9 used to correct the loading state of the lower end portion of the lifting shaft 204 and the suction nozzle 203, a detection device K for detecting the position of the lower end portion of the suction nozzle 203 relative to the head body 12, Is provided.

  When the suction nozzle 203 is replaced, the first elevating devices 18 and 82 are operated to press the lower end portion of the suction nozzle 203 against the upper surface of the jig base 9, and the position of the lower end portion of the suction nozzle 203 is pressed after the pressing. Is detected by the detection device K, and at least one of positioning of the suction nozzle 203 when sucking the component P and positioning of the suction nozzle 203 when mounting the component P on the substrate PB is performed based on the detection result of the detection device K. .

  Thus, the lower end portion of the replaced suction nozzle 203 is pressed against the upper surface of the jig base 9, so that the seating of the suction nozzle 203 with respect to the lifting shaft 204 is improved. And the position of the lower end part of the suction nozzle 203 after pressing is suppressed even before and after the suction of the component P and before and after the mounting. Therefore, the positioning accuracy of the suction nozzle can be improved by sucking or mounting the component P based on the detection position of the lower end portion of the suction nozzle 203 in a state in which the fluctuation is suppressed. The occurrence of mistakes can be prevented.

  Further, the suction nozzle 22 has a nozzle portion 34 that sucks components at the lower end portion and a holder portion 26 that holds the nozzle portion 34, and the nozzle portion 34 is held by the holder portion 26 so as to be movable up and down. The component mounter 1 is detachably loaded on the lower end portion of the elevating shaft 14, and further includes second elevating devices 80, 85, 86, 106, 58 that elevate the nozzle portion 34 relative to the holder portion 26. When the suction nozzle 22 is replaced, the first and second lifting / lowering devices 18, 82, 80, 85, 86, 106, 58 are operated to press the lower end portion of the suction nozzle 22 against the upper surface of the jig base 9. The position of the lower end portion of the suction nozzle 22 is detected by the detection device K after the pressing, and the positioning of the suction nozzle 22 when the component P is sucked based on the detection result of the detection device K and the component P is mounted on the substrate PB At least one of the positioning of the suction nozzle 22 is performed.

  The second elevating devices 80, 85, 86, 106, 58 raise and lower the nozzle portion 34 with respect to the holder portion 26. It becomes difficult to move up and down. However, since the lower end portion of the replaced suction nozzle 22 is pressed against the upper surface of the jig base 9, the seating of the suction nozzle 22 with respect to the lifting shaft 14 is improved. Therefore, raising / lowering of the nozzle part 34 with respect to the holder part 26 can be easily performed. Moreover, since the fluctuation | variation is suppressed even if the position of the lower end part of the suction nozzle 22 after pressing is before and after the adsorption | suction of the component P, and before and behind mounting | wearing, of the part P based on the detection position of the lower end part of the said suction nozzle 22 The accuracy of suction and mounting can be improved, and the occurrence of misalignment or mistake in the suction and mounting of the component P can be prevented.

  Further, since the suction nozzles 22 and 203 are detachably loaded on the lower end portions of the lifting shafts 14 and 204 via the pin members 46 and 206, when the suction nozzles 22 and 203 are replaced, the lifting shafts 14 and 204 are replaced. The backlash increases. However, since the lower end portions of the replaced suction nozzles 22 and 203 are pressed against the upper surface of the jig base 9, the suction nozzles 22 and 203 are improved in sitting on the lifting shafts 14 and 204.

(7. Others)
In each of the above-described embodiments, the component mounting machine 1 is configured to include the jig base 9, but is disposed in the movement region of the component mounting head 10 such as the guide rails 5 a and 5 b of the board transfer device 2 and the nozzle station S. It is good also as the component mounting machine 1 which uses the member currently used instead of the jig stand 9. FIG.

  10, 200: component mounting head, 12: head body, 14, 204: lifting shaft, 18: first linear motor (first lifting device), 22, 203: suction nozzle, 26, 202: holder section, 28: shaft Part, 30, 31: disc part, 32: flange part, 34, 201: nozzle part, 36: spring holding cylinder, 37: bearing, 46, 206: locking pin (pin member), 58: biasing spring ( Second lifting device), 80: second linear motor (second lifting device), 82: first lifting drive member (first lifting device), 85: second lifting drive member (second lifting device), 86, 87 : Roller (second lifting device), 106: Load cell (second lifting device), 110: Control device

Claims (3)

A component mounter that picks up supplied components, transfers them onto a substrate to be transported, and mounts them.
The head body,
A lifting shaft held by the head main body so as to be movable up and down;
A suction nozzle that is detachably loaded at the lower end of the lifting shaft and sucks components at the lower end,
A first lifting device that lifts and lowers the lifting shaft with respect to the head body;
A jig base used to correct the loading state of the lower end of the lifting shaft and the suction nozzle;
A detection device for detecting a position of a lower end portion of the suction nozzle with respect to the head body;
With
When the suction nozzle is replaced, the first lifting device is operated to press the lower end of the suction nozzle against the upper surface of the jig base,
After the pressing, the detection device detects the position of the lower end of the suction nozzle,
A component mounting machine that performs at least one of positioning of the suction nozzle when sucking the component and positioning of the suction nozzle when mounting the component on the substrate based on a detection result of the detection device. The suction nozzle has a nozzle portion that sucks the component at a lower end portion and a holder portion that holds the nozzle portion, the nozzle portion is held by the holder portion so as to be movable up and down, and the holder portion is supported by the lifting shaft. Is detachably loaded at the lower end of the
The component mounter further includes a second lifting device that lifts and lowers the nozzle portion relative to the holder portion,
When the suction nozzle is replaced, the first and second lifting devices are operated to press the lower end portion of the suction nozzle against the upper surface of the jig base,
After the pressing, the detection device detects the position of the lower end of the suction nozzle,
The component according to claim 1, wherein at least one of positioning of the suction nozzle when sucking the component and positioning of the suction nozzle when mounting the component on the substrate is performed based on a detection result of the detection device. Mounting machine.   The component mounting machine according to claim 1, wherein the suction nozzle is detachably mounted on a lower end portion of the lifting shaft via a pin member.

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