JP2010258407A - Component mounting apparatus and multi-component mounting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a component mounting apparatus and multi-component mounting apparatus, which carry out high precision control of the position of a component attaching/removing unit for attaching/removing the component. <P>SOLUTION: The component mounting apparatus 1A is equipped with: a rotary drive 4; a slide drive 3; a base 2; a main shaft portion 6; the component attaching/removing unit 8; a spline portion 5; a slider portion 7; and a rotary bush 2J disposed on a common base 2A of the base 2. The base 2 holds the rotary drive 4 and slide drive 3. The main shaft portion 6 turns around the axis by the torque transmitted from the rotary drive 4 and moves along the axis by slide force transmitted from the slide drive 3. The component attaching/removing unit 8 is fixed to the main shaft portion 6 so as to removably attach the component. The spline portion 5 allows the main shaft portion 6 to slidably connect to the rotary drive 4. The slider portion 7 allows the main shaft portion 6 to rotatably connects to the slide drive 3. The rotary bush 2J allows the main shaft portion 6 to rotatably and slidably connect to the base 2 so as to regulate the displacement of the main shaft portion 6 on an XY plane. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a component mounting apparatus and a multi-component mounting apparatus used for mounting electronic components on a substrate.

  2. Description of the Related Art As a component mounting device used for mounting electronic components on a board or the like, a device in which a suction nozzle is configured to be rotatable and slidable is provided (see, for example, Patent Document 1 and Patent Document 3). Further, there is provided a device in which a transport / measurement head is configured to be slidable and an impact acting on the head tip is absorbed by a spring provided between a collet that grips the head and the head (see, for example, Patent Document 2). ).

JP 2004-88024 A Japanese Patent Application Laid-Open No. 08-184642 JP 2007-234766 A

  The component mounting apparatus of Patent Document 1 is provided with a spline mechanism that transmits the rotation of the rotary actuator to the suction nozzle and a slide mechanism that transmits the slide drive of the linear actuator to the suction nozzle. The suction nozzle is provided at the lower end of the main shaft portion, and the lower end of the main shaft portion is supported by a linear guide disposed on the base portion with an offset in the horizontal direction via an arm. For this reason, the position accuracy of the suction nozzle may deteriorate due to the backlash of the linear guide or arm. Also, the mounting load that acts perpendicularly to the tip of the suction nozzle when sucking and removing the component acts as a moment load, and the tip of the suction nozzle swings slightly due to the deflection of the linear guide or arm, so that the component on the mounting board There is also a risk that the mounting may be displaced.

  In the apparatus of Patent Document 2, the movable collet is supported via a support arm on two linear motion guides that are offset in the horizontal direction from the movable collet and are arranged on the base portion. For this reason, it is difficult to control the position of the movable collet with high accuracy by the two linear sliders and the backlash and swing of the support arm.

  The component mounting apparatus of Patent Document 3 is provided with a voice coil motor that transmits the rotation of the θ motor to the suction nozzle, and a vertical Z drive unit that is slid and driven by the rotation of the Z-axis motor. The vertical Z drive unit is regulated in the horizontal plane position by a ball screw and a linear guide. The vertical Z drive unit includes a ball guide bearing that is offset in a horizontal plane from the ball screw and the linear guide, and the horizontal plane position of the nozzle shaft is regulated by the ball guide bearing. A suction nozzle is provided at the lower end of the nozzle shaft. For this reason, the positional accuracy of the vertical Z drive unit and the suction nozzle may deteriorate due to the looseness of the ball screw or the linear guide.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a component mounting apparatus and a multi-component mounting apparatus that can improve the position control of a component mounting / removal unit that mounts / dismounts a component.

  The present invention is a component mounting apparatus including a base, a main shaft portion, and a component attaching / detaching portion, and includes a spline portion, a slider portion, and a main shaft guide portion. The base holds the rotation drive unit and the slide drive unit. The main shaft portion rotates around the axis by the torque transmitted from the rotation drive unit, and moves along the axis by the slide force transmitted from the slide drive unit. The component attaching / detaching portion is fixed to the main shaft portion and attaches / detaches the component. The spline part slidably connects the main shaft part to the rotation drive part and transmits torque. The slider unit rotatably couples the main shaft unit to the slide drive unit to transmit a sliding force. The main shaft guide portion is fixed to the base, and the main shaft portion is connected to the base so as to be rotatable and slidable, thereby restricting displacement of the main shaft portion in a direction perpendicular to the axis of the main shaft portion.

  The main shaft portion of this configuration is supported by a spline portion and a slider portion that are responsible for transmission of driving force to the main shaft portion, and a main shaft guide portion that regulates displacement of the main shaft portion in a direction perpendicular to the axis of the main shaft portion. Since the main shaft guide portion is directly installed on the base on the same axis as the main shaft portion, the mounting position accuracy of the main shaft portion with respect to the base in a plane perpendicular to the main shaft portion can be improved. Further, since the drag force that counteracts the moment load that is applied when the component is attached / detached acts directly on the main shaft portion from the main shaft guide portion, the main shaft portion can be prevented from shaking due to the moment load. Therefore, in this component mounting apparatus, the position control of the main shaft portion and the component attaching / detaching portion can be performed with high accuracy.

  It is preferable that the slider portion of the present invention includes a drive side connecting portion, a main shaft side connecting portion, and an elastic body. The driving side connecting portion is connected to the slide driving portion. The main shaft side connecting portion is connected to the main shaft portion. The elastic body is connected to the drive side connecting portion and the main shaft side connecting portion. With this configuration, the component adsorbing portion, the main shaft portion, and the main shaft side connecting portion can escape upward with respect to the driving side connecting portion. For example, even if the drive-side connecting part is driven below the part mounting height due to a malfunction of the slide drive part or when there is an unexpected foreign object at the part mounting position on the mounting board, the part suction part The main shaft and main shaft side connection part only takes up to the upper limit load defined by the spring constant of the elastic body, and if it exceeds that load, it will escape upward, so the parts suction part, main shaft part and main shaft side connection Damage to the part can be prevented. In addition, it is difficult to support the moment load acting on the main shaft portion only with such a main shaft side connecting portion. Therefore, by using both the main shaft side connecting portion and the main shaft guide portion, it is possible to support the moment load acting on the main shaft portion while providing the function of releasing the main shaft portion upward.

  In the component mounting apparatus according to the present invention, the component attaching / detaching portion attaches / detaches the component by the negative pressure of the intake device, and the main shaft side connecting portion is preferably connected to the main shaft portion so as to be swingable. The intake device is connected to an intake passage provided from the component attaching / detaching portion to the main shaft portion and the main shaft side connecting portion. With this configuration, the intake device is connected to the intake passage at the main shaft side connection portion that is swingably connected to the component attaching / detaching portion, and piping of the intake device is facilitated. In addition, since the component attaching / detaching portion, the main shaft portion, and the main shaft side connecting portion are connected to each other without sliding, the risk of air leaking from the gaps can be reduced, and the components can be reliably connected even in a sliding configuration. Detachable can be realized.

  The main shaft portions of the present invention are preferably connected to each other in the order of arrangement of the spline portion, the slider portion, the main shaft guide portion, and the component attaching / detaching portion from the first end side to the second end side. Although minute vibration may occur in the main shaft portion, in this configuration, the main shaft guide portion serves as a vibration node. Therefore, the component attaching / detaching portion is arranged near a node having a small amplitude to increase the positional accuracy of the component attaching / detaching portion. be able to.

  The component mounting apparatus according to the present invention preferably includes a locking member and a locking drive unit. The locking member is provided movably with respect to the base and the spindle guide. The locking drive unit moves the locking member to a position that regulates the position of the slider unit when power supply to the slide drive unit is stopped. Thereby, when the electrode supply to the slide drive unit is stopped, it is possible to reduce the risk of the component attaching / detaching unit dropping due to its own weight and being damaged. This configuration is particularly suitable for a configuration in which the slider drive unit drives the slider unit with a linear actuator, even if the excitation of the linear actuator is cut off, such as when the servo of the slider drive unit is OFF, during an emergency stop, or during an instantaneous power failure. In addition, it is possible to reliably prevent damage to the component attaching / detaching portion.

  The present invention is a multi-component mounting apparatus provided with a plurality of the above-described component mounting apparatuses, and it is preferable that the spindle guide portion of each component mounting apparatus is provided in an integral block. Thereby, the spindle part of each component mounting apparatus supported by the spindle guide part can be assembled with high accuracy, and variations in the positional accuracy of the component attaching / detaching part can be suppressed.

  According to this invention, the main shaft portion is supported by the spline portion and the slider portion that are responsible for transmitting the driving force to the main shaft portion, and the main shaft guide portion that restricts the displacement of the main shaft portion in the direction perpendicular to the axis of the main shaft portion. Is done. For this reason, a main-axis guide part can be installed on the same axis | shaft of a main-axis part, and position control of the components attachment / detachment part which attaches / detachs components can be made highly accurate.

1 is a perspective view of a multi-component mounting apparatus according to a first embodiment of the present invention. It is a fragmentary sectional view of the component mounting apparatus with which the multi-component mounting apparatus shown in FIG. It is an expanded view of the multi-component mounting apparatus which concerns on the 2nd Embodiment of this invention. It is an expanded view of the multi-component mounting apparatus which concerns on the 3rd Embodiment of this invention.

  The multi-component mounting apparatus according to the first embodiment of the present invention will be described below.

  FIG. 1 is a perspective view of a multi-component mounting apparatus 1 according to this embodiment.

  The multi-component mounting apparatus 1 is composed of four component mounting apparatuses 1A to 1D. The component mounting apparatuses 1A to 1D are each a base 2, a slide drive unit 3, a rotation drive unit 4, a spline unit 5, a main shaft unit 6, and a slider. A part 7 and a component attaching / detaching part 8 are provided.

  The base 2 supports the rotation drive unit 4, the slide drive unit 3, and the main shaft unit 6. The base 2 includes a common base 2A and an individual base 2B. The common base 2A is configured by a block member common to the component mounting apparatuses 1A to 1D. The individual base 2B is composed of individual members for each of the component mounting apparatuses 1A to 1D. The slide drive unit 3 converts the rotation of the motor 3 </ b> A into a linear motion using the ball screw 3 </ b> D, and slides the main shaft unit 6 and the component attaching / detaching unit 8 via the slider unit 7. The slider unit 7 connects the main shaft unit 6 to the slide drive unit 3 in a freely rotatable manner. The rotation driving unit 4 transmits the rotation of the motor 4 </ b> A to the main shaft unit 6 through the spline unit 5 to rotationally drive the main shaft unit 6 and the component attaching / detaching unit 8. The spline portion 5 slidably connects the main shaft portion 6 to the rotation drive portion 4. The main shaft portion 6 is configured to be fitted in a rotary bush 2J provided on the common base 2A of the base 2 so as to be rotatable and slidable. The rotary bush 2J corresponds to the main shaft guide portion of the present invention. Thereby, the mounting position accuracy of the main shaft portion 6 in each of the component mounting apparatuses 1A to 1D can be made high with no variation. The component attaching / detaching portion 8 is a suction nozzle provided at the lower end portion of the main shaft portion 6 and moves up and down in the Z-axis direction and rotates in a horizontal plane.

  The multi-component mounting device 1 of this embodiment is attached to the head portion of a moving device that moves electronic components on a horizontal XY stage, for example, with a common base 2A. Then, the component attaching / detaching unit 8 is lowered while being transferred to the component preparation position on the XY stage, and the electronic component is driven to be attracted to the component attaching / detaching unit 8 by controlling the negative pressure. Next, the component attaching / detaching unit 8 is lifted and the component attaching / detaching unit 8 is rotated so as to control the posture of the electronic component. Then, the component attaching / detaching portion 8 is lowered while being transferred to the component mounting position on the XY stage, and the component attaching / detaching portion 8 is driven to release the electronic component by controlling the negative pressure.

  FIG. 2 is a diagram for explaining a configuration of a partial cross section of the component mounting apparatus 1A, and hatched portions in the drawing indicate cross sections. 2A shows a state where the component attaching / detaching portion 8 is arranged at the Z-axis upper limit position, FIG. 2B shows a state where the component attaching / detaching portion 8 is arranged at the Z-axis lower limit position, and FIG. A state is shown in which the component attaching / detaching portion 8 is moved to the Z axis upper limit position by applying a vertically upward force to the component attaching / detaching portion 8 from the state where the portion 8 is disposed at the Z axis lower limit position. Although not described, the component mounting apparatuses 1B to 1D have the same configuration as the component mounting apparatus 1A.

  The common base 2A is configured by integrally forming the common back plate 2C and the common bottom plate 2D, or by firmly connecting the members. The individual base 2B is composed of an individual top plate 2E, an individual back plate 2F, an individual ball screw holding plate 2G, and an individual bottom plate 2H, or is configured by firmly connecting each member. The individual base 2B is attached to the common base 2A with screws or the like. The individual top plate 2E, the individual ball screw holding plate 2G, and the individual bottom plate 2H are provided with mounting holes (not shown) of the slide drive unit 3, and the individual ball screw holding plate 2G and the mounting holes of the individual bottom plate 2H are provided in the mounting holes. A bearing (not shown) that rotatably holds the ball screw 3D is provided. The individual top plate 2E and the common bottom plate 2D are provided with mounting holes for the rotation drive unit 4 and the main shaft unit 6, and the common bushing 2D is provided with a rotary bush 2J.

  The slide drive unit 3 includes a motor 3A, a motor rotating shaft 3B, a coupling 3C, a ball screw 3D, and a ball screw nut 3E. The coupling 3C connects the motor rotating shaft 3B and the ball screw 3D. The motor 3A rotates the motor rotating shaft 3B, the ball screw 3D, and the coupling 3C. The ball screw nut portion 3E is screwed into the ball screw 3D and is connected to a slider portion 7 described later. Therefore, the rotation of the ball screw nut portion 3E is restricted from the slider portion 7, and slides along the ball screw 3D when the ball screw 3D rotates.

  The rotation drive unit 4 includes a motor 4A, a motor rotation shaft 4B, and a coupling 4C. The coupling 4 </ b> C connects the motor rotation shaft 4 </ b> B and the spline shaft 5 </ b> A of the spline portion 5. The motor 4A rotates the motor rotation shaft 4B, the spline shaft 5A, and the coupling 4C.

  The spline portion 5 includes a spline shaft 5A, a sleeve 5B, and a coupling 5C. The coupling 5 </ b> C connects the sleeve 5 </ b> B and the main shaft portion 6. The spline shaft 5A and the sleeve 5B are each grooved in the axial direction, and a spline ball common to each groove is fitted. Accordingly, the sleeve 5B rotates in conjunction with the rotation of the spline shaft 5A. Further, the sleeve 5B of the spline portion 5 is from the state positioned at the upper end of the spline shaft 5A as shown in FIG. 2A to the state positioned at the lower end of the spline shaft 5A as shown in FIG. It is free to slide.

  The main shaft portion 6 has an intake passage 6A formed along the axis thereof. Further, the outer peripheral surface is rotatably and slidably supported by the rotary bush 2J of the common bottom plate 2D, and is connected to the sleeve 5B via the coupling 5C of the spline portion 5. For this reason, the main shaft portion 6 rotates in conjunction with the rotation of the motor 4A by the torque transmitted from the slidable sleeve 5B. The component attaching / detaching portion 8 is connected to the lower end of the main shaft portion 6 and rotates in conjunction with the rotation of the main shaft portion 6.

  The slider portion 7 includes a shaft side slider 7A, a drive side slider 7B, and a tension spring 7C. The shaft side slider 7A is the main shaft side connecting portion of the present invention, and the driving side slider 7B is the driving side connecting portion of the present invention.

  The shaft-side slider 7A is disposed between the coupling 5C and the drive-side slider 7B, and includes an air inlet 7D and two bearings 7E. The intake port 7D is connected to a pipe of an intake device (not shown). In the bearing 7E, an inner ring portion of the bearing is fitted to the main shaft portion 6 to rotatably hold the main shaft portion 6, and an outer ring portion of the bearing is connected to the tension spring 7C. The two bearings 7E are provided at both ends in the axial direction of the shaft-side slider 7A, and an annular airtight space is formed on the outer periphery of the main shaft portion 6 by providing sealing inside each axial direction. The air inlet 7D communicates with the airtight space, and the air intake passage 6A in the main shaft portion 6 is exposed. Since the shaft-side slider 7A is rotatably connected to the main shaft portion 6 without sliding, there is little risk of air leaking from the connection position. Therefore, by providing the shaft-side slider 7A with the air inlet 7D, the air tightness of the air intake passage 6A can be improved.

  The drive-side slider 7B is connected to the aforementioned ball screw nut 3E and includes a rotary bush 7F. The rotary bush 7F holds the main shaft portion 6 so as to be rotatable and slidable.

  The tension spring 7C is connected to the shaft-side slider 7A and the drive-side slider 7B, and applies a tension force therebetween. The shaft-side slider 7A is formed with a groove in the vertical direction, and the drive-side slider 7B is provided with a pin (not shown) protruding upward. By fitting the groove and the pin, the shaft-side slider 7A can move in the vertical direction with respect to the drive-side slider 7B, and the rotation is restricted.

  In this slider portion 7, the Z-axis position of the drive side slider 7B is restricted by the ball screw nut portion 3E. The tension spring 7C regulates the Z-axis position of the shaft-side slider 7A by an elastic force. The shaft-side slider 7A restricts the Z-axis position of the main shaft portion 6. The spring constant of the tension spring 7 </ b> C is set so that the drive side slider 7 </ b> B and the shaft side slider 7 </ b> A are not separated even when an inertial force is applied as the slider portion 7 moves. The Z-axis position of the shaft-side slider 7A is determined by the elastic force acting from the tension spring 7C, the drag force applied in contact with the drive-side slider 7B, and the force acting from the main shaft portion 6. For this reason, the slider part 7 transmits the sliding force from the ball screw nut part 3E to the main shaft part 6, and slides in conjunction with the rotation of the motor 3A.

  In addition, when the component attaching / detaching portion 8 sucks and removes the electronic component, a reaction force acts on the component attaching / detaching portion 8 in the Z-axis direction. If such a force does not exceed the threshold value defined by the spring constant, the driving slider 7B and the shaft slider 7A remain in contact with each other as shown in FIGS. 2 (A) and 2 (B). And slide. On the other hand, if the force exceeds the threshold value, the drive-side slider 7B and the shaft-side slider 7A are separated as shown in FIG. For this reason, even if a force in the Z-axis direction is applied to the component attaching / detaching portion 8, the shaft attaching slider 7 </ b> A escapes upward, so that damage to the component attaching / detaching portion 8 and the main shaft portion 6 slider portion 7 can be avoided.

  In the component mounting apparatus 1A having the above configuration, the rotary bush 2J of the common bottom plate 2D, the rotary bush 7F of the drive side slider 7B, and the coupling 5C of the spline portion 5 regulate the position of the main shaft portion 6 in the horizontal plane. The rotary bush 7F is connected to the common base 2A through the drive side slider 7B, the slide drive unit 3 and the individual base 2B, and the coupling 5C is connected to the spline unit 5, the rotation drive unit 4 and the individual base 2B. It is connected to the common base 2A. On the other hand, the rotary bush 2J is directly connected to the common base 2A. For this reason, the rotary bush 2J is superior to the rotary bush 7F and the coupling 5C in the mounting position accuracy in the horizontal plane with respect to the common base 2A, and the horizontal position accuracy of the component attaching / detaching portion 8 is the rotary bush 7F or It is determined by the rotary bush 2J which is the main shaft guide part rather than the coupling 5C. Thereby, in this structure, the positional accuracy of the component attaching / detaching portion can be determined by excluding the influence of the mechanism for rotationally driving the spindle and the mechanism for sliding driving, and conventional apparatuses that support the spindle by these mechanisms (Patent Documents 1 to 3). Compared with 3), the position control of the main shaft portion 6 and the component attaching / detaching portion 8 can be performed with high accuracy. Further, since the drag force that counteracts the moment load that is applied when the component is attached or detached directly acts on the main shaft portion 6 from the rotary bush 2J fixed to the common base 2A, the main shaft portion 6 can be prevented from swinging due to the moment load. For this reason, in the component mounting apparatus 1A, the position control of the main shaft portion 6 and the component attaching / detaching portion 8 can be performed with extremely high accuracy.

  Although the main shaft portion 6 may be slightly oscillated, the rotary bush 2J serves as a vibration node. Therefore, the component attaching / detaching portion 8 is arranged in the vicinity of a node having a small amplitude so that the positional accuracy of the component attaching / detaching portion 8 is improved. Can be increased.

  In the present embodiment, the slider portion 7 is also provided with the rotary bush 7F. By providing this rotary bush 7F, the effect of the rotary bush 2J for regulating the position of the main shaft portion 6 on the XY plane is assisted. Can do.

  Next, a multi-component mounting apparatus according to a second embodiment of the present invention will be described. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  FIG. 3 is a diagram illustrating the configuration of the multi-component mounting apparatus according to the present embodiment. 3A is a front view, FIG. 3B is a partial perspective view, and FIGS. 3C and 3D are side cross-sectional views.

  This multi-component mounting apparatus includes a locking drive unit 10, a locking member 11, a slide drive unit 13, and a common bottom plate 12D.

  The slide drive unit 13 constitutes a linear slider mechanism and includes a linear guide 13D and a linear movable element 13E. Both ends of the linear guide 13D are supported by the base 2. The linear mover 13E is connected to the main shaft portion 6 and the component attaching / detaching portion 8 via the slider portion 7, and slides along the linear guide 13D. By driving the slide driving unit 13, the main shaft unit 6 and the component attaching / detaching unit 8 slide.

  The common bottom plate 12D includes a recess 12K that opens toward the front and top surfaces thereof, and a guide hole (not shown) that opens to the top surface.

  The locking drive unit 10 includes a cylinder body 10A and a cylinder movable unit 10B. The cylinder movable portion 10B protrudes above the upper surface of the common bottom plate 12D and is held by the cylinder body 10A so as to be movable up and down. The cylinder body 10A is provided inside the recess 12K of the common bottom plate 12D and includes an inner chamber and a solenoid valve (not shown) inside. When the compressed gas is introduced into the inner chamber, the cylinder movable portion 10B is pushed out and raised upward. The electromagnetic valve is provided at the inlet of the compressed gas to the inner chamber, and the valve is closed when power is supplied to the slide drive unit 13, and the valve is opened when power supply is stopped to introduce the compressed gas into the inner chamber.

  The locking member 11 includes a locking plate portion 11A and a bush portion 11B. The lower end of the bush portion 11B is inserted into a guide hole (not shown) of the common bottom plate 12D, and is held movably up and down with respect to the common bottom plate 12D. Moreover, the upper end is joined to the lower surface of 11 A of latching board parts. 11 A of latching board parts are provided so that a front-end | tip may reach directly under the drive side slider 7B, and when it supplies electric power to the slide drive part 13, it arrange | positions close to common bottom board 12D, and when supply of electric power stops It is pushed up by the locking drive unit 10 and comes into contact with the lower end of the drive side slider 7B.

  The linear slider is de-energized when the servo of the linear slider is OFF, during an emergency stop, or during an instantaneous power failure. In the present embodiment, when the excitation of the linear slider is cut off, in this embodiment, the solenoid valve provided in the cylinder body 10A is opened, compressed air is introduced into the inner chamber of the cylinder body 10A, and the cylinder movable portion 10B is raised. As a result, the locking member 11 rises and comes into contact with the driving slider 7B, thereby restricting the position of the driving slider 7B. Therefore, it is possible to prevent the component attaching / detaching portion 8 from being dropped and damaged.

  In the present embodiment, the plurality of cylinder movable portions 10B and the plurality of bush portions 11B are arranged in a line on a straight line extending in the left-right direction of the apparatus. By adopting this configuration, it is possible to prevent bending torque from acting on the cylinder movable portion 10B and the bush portion 11B when the locking member 11 moves up and down, and to smoothly move the locking member 11 up and down.

  Moreover, in this embodiment, since the latching drive part 10 is provided in the recessed part 12K of common bottom board 12D, the increase in the apparatus size by the attachment of the latching drive part 10 can be suppressed.

  Next, a multi-component mounting apparatus according to a third embodiment of the present invention will be described. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

  FIG. 4 is a diagram illustrating the configuration of the multi-component mounting apparatus according to the present embodiment. 4A is a front view, FIG. 4B is a top cross-sectional view, and FIGS. 4C and 4D are side views.

  This multi-component mounting apparatus includes a locking drive unit 20, a locking member 21, a slide drive unit 13, a common bottom plate 2D, a common back plate 22C, and a guide rail 22K.

  The locking drive unit 20 includes a cylinder body 20A and a cylinder movable unit 20B. The cylinder movable portion 20B protrudes above the upper surface of the common bottom plate 2D and is held by the cylinder body 20A so as to be movable up and down. The cylinder body 20A is attached to the side surface of the common bottom plate 2D and includes an inner chamber and a solenoid valve (not shown) inside. When the compressed gas is introduced into the inner chamber, the cylinder movable portion 20B is pushed out and raised upward. The solenoid valve is provided at the inlet of the compressed gas to the inner chamber, and the valve is closed when power is supplied to the slide drive unit 13, and the valve is opened when power supply is stopped to introduce the compressed gas into the inner chamber.

  The guide rails 22K are attached to the left and right ends of the front surface of the common back plate 22C.

  The locking member 21 includes a locking plate portion 21A and a guide portion 21B. A guide rail 22K is attached to the back side of the guide portion 21B, and is held so as to be movable up and down. Further, the locking plate portion 21A is joined to the front side of the guide portion 21B. The locking plate portion 21A is a flat plate provided with a notch that bypasses the linear guide 13D described above, and is provided so that the tip reaches directly below the linear movable element 13E. And it arrange | positions close to the common baseplate 2D at the time of the electric power supply to the slide drive part 13, is pushed up by the latching drive part 20 at the time of the electric power supply stop, and contact | abuts the lower end part of the linear mover 13E.

  Therefore, in this embodiment, when the excitation of the linear slider is cut, the solenoid valve provided in the cylinder body 20A is opened, compressed air is introduced into the inner chamber of the cylinder body 20A, and the cylinder movable portion 20B is raised. As a result, the locking member 21 rises and comes into contact with the linear movable element 13E, thereby regulating the position of the linear movable element 13E. Therefore, it is possible to reliably prevent the component attaching / detaching portion 8 from being dropped and damaged.

  In the present embodiment, the plurality of cylinder movable parts 20B and the plurality of linear guides 13D are arranged in a line on a straight line extending in the left-right direction of the apparatus. By adopting this configuration, when the linear mover 13E drops when power supply is stopped, the linear mover 13E related to the locking member 21 is supported by the locking drive unit 20, and the guide portion 21B and the guide rail 22K are supported. An excessive torque is prevented from acting on the connecting portion between the guide portion 21B and the guide rail 22K so that the connection between the guide portion 21B and the guide rail 22K cannot be broken.

DESCRIPTION OF SYMBOLS 1 ... Multi-component mounting apparatus 1A-1D ... Component mounting apparatus 2 ... Base 2A ... Common base 2B ... Individual base 2C, 22C ... Common back plate 22K ... Guide rail 2D, 12D ... Common bottom plate 12K ... Recess 2E ... Individual top plate 2F ... Individual back plate 2G ... Ball screw holding plate 2H ... Individual bottom plate 2J ... Rotary bushing 3, 13 ... Slide drive unit 3A ... Motor 3B ... Motor rotating shaft 3C ... Coupling 3D ... Ball screw 3E ... Ball screw nut part 13D ... Linear Guide 13E ... Linear movable element 4 ... Rotation drive unit 4A ... Motor 4B ... Motor rotating shaft 4C ... Coupling 5 ... Spline part 5A ... Spline shaft 5B ... Sleeve 5C ... Coupling 6 ... Main shaft part 6A ... Intake passage 7 ... Slider part 7A ... Shaft side slider 7B ... Drive side slider 7C ... Tension spring 7D ... Intake port 7E ... Bearing 7F ... Rotary bush 8 ... Parts attaching / detaching part 10, 20 ... Locking drive part 10A, 20A ... Cylinder body 10B, 20B ... Cylinder movable part 11, 21 ... Locking member 11A, 21A ... Locking plate part 11B ... Bushing part 21B ... Guide part

Claims (6)

A base for holding the rotation drive unit and the slide drive unit;
A main shaft portion that rotates about an axis by torque transmitted from the rotary drive unit and moves along the axis by a slide force transmitted from the slide drive unit;
A component mounting device that is fixed to the main shaft and includes a component mounting / removal unit that mounts / dismounts a component,
A spline part that slidably connects the main shaft part to the rotational drive part and transmits the torque;
A slider part that rotatably connects the main shaft part to the slide drive part and transmits the sliding force;
A main shaft guide portion fixed to the base, connected to the base in a rotatable and slidable manner, and restricting displacement of the main shaft portion in a direction perpendicular to the axis of the main shaft portion;
A component mounting apparatus comprising:   The slider portion includes a driving side connecting portion connected to the slide driving portion, a main shaft side connecting portion connected to the main shaft portion, and an elastic body connected to the driving side connecting portion and the main shaft side connecting portion. The component mounting apparatus according to claim 1, further comprising: The component attaching / detaching portion attaches / detaches the component by a negative pressure of an intake device connected to an intake passage provided from the component attaching / detaching portion to the main shaft portion and the main shaft side connecting portion,
The component mounting apparatus according to claim 2, wherein the main shaft side connecting portion is rotatably connected to the main shaft portion.   The main shaft portion is connected to each of the spline portion, the slider portion, the main shaft guide portion, and the component attaching / detaching portion in the order of arrangement from the first end side to the second end side. 4. The component mounting apparatus according to any one of 3 above. A locking member provided movably with respect to the base and the spindle guide part;
5. The component according to claim 1, further comprising: a locking drive unit that moves the locking member to a position that regulates a position of the slider unit when power supply to the slide driving unit is stopped. Mounting device.   6. A multi-component mounting apparatus provided with a plurality of component mounting apparatuses according to any one of claims 1 to 5, wherein the spindle guide portion of each component mounting apparatus is provided in an integral block.

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