JP5721559B2 - Working head mounting device - Google Patents

Description

  The present invention relates to a work head mounting apparatus that detachably mounts a work head of a manufacturing work machine that performs manufacturing work on a substrate or the like to a head holding base.

  In a manufacturing work machine that performs manufacturing work on a substrate or the like, for example, an electronic component mounting apparatus, a component mounting head to which a suction nozzle that sucks an electronic component is attached is moved in the XY plane by the head moving device, and the suction nozzle The electronic component adsorbed by is mounted on a circuit board.

  In this type of electronic component mounting apparatus, there is an electronic component mounting apparatus in which the component mounting head is detachable from the head moving device, and the component mounting head is exchanged depending on the type of electronic component.

  For this reason, in this type of electronic component mounting apparatus, for example, the component mounting head is detachably clamped to the head moving device by a head clamp device having a configuration described in Patent Document 1. .

JP 2004-221518 A

  The head clamp device described in Patent Document 1 described above is formed at the lower end of the latch pin 362 by generating a pressing force on the latch pin 362 by rotating the plate cam 370 by the restoring force of the torsion spring 380. The inclined surface 378 is brought into contact with the outer periphery of a latching roller 360 provided on the component mounting head side, and the component mounting head is clamped to the head moving device.

  Due to such a configuration, in the head clamping device described in Patent Document 1, the clamping force by the torsion spring 380 is reduced at the time of clamping than at the time of unclamping, and the weight of the component mounting head increases. There is concern about insufficient clamping force.

  The present invention has been made to solve the above-described conventional concerns, and provides a work head mounting device that can firmly clamp a work head that is detachably mounted on a head holding base to the head holding base. It is intended to do.

  In order to solve the above-described problem, a feature of the invention according to claim 1 is a work head mounting device for detachably mounting a work head on a head holding base, and positioning and supporting the work head on the head holding base. A positioning support member to be engaged, a pusher member that is detachably engaged with an engagement member provided on the work head, and the pusher member is pressed in a direction to engage with the engagement member to push the work head A clamp device for clamping to the head holding base, the clamp device being connected to a pressing member that presses the pusher member in a direction to be engaged with the engaging member, and an operation that is connected to the pressing member so as to be relatively movable by a predetermined amount; A member, a spring interposed between the actuating member and the pressing member and biasing the pusher member in a direction to engage the engaging portion, and the actuating member in the biasing direction of the spring An operating member for operating is to have a lock member for locking the operating member in a state of increased than when unclamping the spring force of the spring by the relative movement between the pressing member and the actuating member.

  According to a second aspect of the present invention, in the first aspect, the operating member is supported by the head holding base so as to be movable forward and backward, and the spring is configured by a compression spring that expands and contracts in the moving direction of the operating member. The engagement member is pressed by the pusher member by the urging force of the compression spring by the movement of the operation member.

  A feature of the invention according to claim 3 is that, in claim 2, the pressing member and the pusher member are engaged via a wedge surface.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the operation member includes a lever supported on the head holding base so as to be rotatable about a support shaft. A pinion is provided integrally with the operation member on the center of the support shaft, and a rack formed on the operating shaft is engaged with the pinion.

  According to a fifth aspect of the present invention, in the first aspect, the operating member is supported by the head holding base so as to be able to rotate forward and backward, and the spring is a torsion spring that generates a torsional torque in the rotation direction of the operating member. The pusher member presses the engaging member by the urging force of the torsion spring by the rotation of the operating member.

  According to the invention according to claim 1 configured as described above, the clamp device that presses the pusher member in the direction in which the pusher member is engaged with the engaging member and clamps the work head on the head holding base is engaged with the engaging member. A pressing member that presses the pusher member in a moving direction, an operating member that is connected to the pressing member so as to be relatively movable by a predetermined amount, and is interposed between the operating member and the pressing member to engage the pusher member with the engaging portion. A spring that biases in the direction, an operating member that operates the actuating member in the biasing direction of the spring, and a state in which the spring force of the spring is increased more than when unclamped by relative movement of the operating member and the pressing member And a locking member that locks.

  With this configuration, by operating the operating member by operating the operating member, the operating shaft is moved relative to the pressing member that presses the pusher member in a direction that increases the biasing force of the spring, and the spring force of the spring is unclamped. It can be locked in an increased state than the time. Thereby, the pressing force of the pusher member by the spring can be increased as compared with the conventional case, and the working head can be firmly clamped to the head holding base.

  According to the invention of claim 2, the actuating member is supported by the head holding base so as to be movable back and forth, the spring is constituted by a compression spring that expands and contracts in the moving direction of the actuating member, and the pusher member is moved by the movement of the actuating member. Since the engaging member is pressed by the urging force of the compression spring, the working head can be firmly clamped to the head holding base by advancing and retracting the operating member while compressing the compression spring by the operating member. it can.

  According to the invention of claim 3, since the pressing member and the pusher member are engaged via the wedge surface, the clamping force of the work head can be further increased by the wedge action.

  According to the invention of claim 4, the operation member is composed of a lever supported by the head holding base so as to be rotatable about the support shaft, and a pinion is integrally provided on the operation member on the center of the support shaft. Since the rack formed on the operating shaft is engaged with the pinion, the operating shaft biased by the spring can be easily moved forward and backward by lever operation.

  According to the fifth aspect of the present invention, the operating member is supported by the head holding base so as to be able to rotate forward and backward, and the spring is constituted by a torsion spring that generates a torsion torque in the rotating direction of the operating member. The pusher member presses the engaging member with the urging force of the torsion spring, so that the operation head is rotated by the operation member while increasing the urging force of the torsion spring, thereby holding the work head in the head. It can be firmly clamped to the table.

1 is a perspective view showing an entire electronic component mounting apparatus suitable for carrying out the present invention. It is a perspective view which shows an example of the component mounting head of an electronic component mounting apparatus. It is a perspective view which shows the working head mounting apparatus which concerns on embodiment. It is sectional drawing of the clamp apparatus which clamps the working head which shows the 1st Embodiment of this invention to a head holding stand. It is a schematic diagram of the clamp apparatus which clamps the working head which shows the 2nd Embodiment of this invention to a head holding stand. It is a schematic diagram which shows the operation state of FIG.

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the electronic component mounting apparatus 10 includes a component supply device 20, a board transfer device 30, and a component transfer device 40.

  As an example, the component supply apparatus 20 includes a plurality of cassette-type feeders 21 arranged on the base 11 in the X-axis direction. The feeder 21 has a supply reel 23 that is removably attached to a main body frame 22 that is detachably attached to the base 11 and is wound with a tape that houses a large number of electronic components in a row at intervals. . Although not shown in the figure, a motor serving as a drive source for pitch-feeding the tape is incorporated inside the feeder 21, and the tape is fed out one pitch at a time by this motor, and the electronic component housed in the tape is the tip of the feeder 21. The components are sequentially supplied to the component supply position provided in the unit.

  The board transport device 30 transports the circuit board B in the X-axis direction and positions and holds the circuit board B at a predetermined position. As an example, the board transport device 30 is composed of a double conveyor type having two rows of transport means 31 and 32 arranged side by side. Yes. Each transport means 31, 32 has a pair of guide rails 33, 34 arranged in parallel on the base 11 so as to face each other in parallel. A pair of conveyor belts (not shown) for supporting and transporting the circuit board B guided by the guide rails 33 and 34 are arranged in parallel on the transport means 31 and 32.

  The component transfer device 40 is composed of an XY robot. The XY robot is mounted on the base 11 and disposed above the component supply device 20 and the substrate transport device 30, and extends along the guide rail 41 in the X-axis direction. A Y-axis moving table 43 that is movable in the orthogonal Y-axis direction is provided. The movement of the Y-axis moving table 43 in the Y-axis direction is controlled by a servo motor 44 via a ball screw. An X-axis moving table 45 is guided and supported on the Y-axis moving table 43 so as to be movable in the X-axis direction, and movement of the X-axis moving table 45 in the X-axis direction is controlled by a servo motor 46 via a ball screw.

  As will be described later, a component mounting head 47 having a suction nozzle for sucking an electronic component is detachably mounted on the X-axis moving table 45. The X-axis moving table 45 constitutes a head holding table on which the component mounting head 47 is detachably mounted. Further, a board camera 48 for imaging a reference mark (not shown) of the circuit board B is attached to the X axis moving table 45.

  As shown in FIG. 2, the component mounting head 47 has a head body 51 that is detachably mounted on an X-axis moving table (head holding table) 45. A rotation holding body 52 is supported on the head body 51 so as to be intermittently rotatable, and is intermittently rotated by a rotating device using a motor 53 as a drive source. A plurality of nozzle holders 54 are held up and down on the circumference of the rotary holder 52, and suction nozzles 55 that suck electronic components are detachably held by these nozzle holders 54. The nozzle holder 54 positioned at a predetermined angular position by the intermittent rotation of the rotary holder 52 is moved up and down in the Z-axis direction (vertical direction) perpendicular to the X-axis and Y-axis directions by a holder lifting device using the motor 56 as a drive source. Thus, the electronic component can be sucked by the suction nozzle 55 and mounted on the circuit board B. The nozzle holder 54 can be rotated (spinned) by a holder rotating device using a motor 57 as a drive source in order to adjust the angle of the electronic component sucked by the suction nozzle 55.

  A component camera 58 (see FIG. 1) that captures an image of the electronic component sucked by the suction nozzle 55 from below is fixed on the base 11. The component camera 58 images the electronic component sucked by the suction nozzle 55 of the component mounting head 47 while moving from the component supply position of the component supply device 20 to a predetermined position on the circuit board B, and the center of the suction nozzle 55 The misalignment and angle misalignment of the electronic component relative to the center are detected, and the movement amount of the component mounting head 47 in the XY directions and the like is corrected based on the misalignment and the electronic component is set at a predetermined coordinate position on the circuit board B. It can be installed accurately.

  A plurality of types of component mounting heads 47 having the above-described configuration are prepared depending on the type of the circuit board B and the like, and are attached to and detached from the head holding base (X-axis moving base) 45 as needed. ing.

  Next, the configuration of the clamping device that clamps the component mounting head 47 to the head holding base (X-axis moving base) 45 will be described with reference to FIGS. 3 and 4.

  In FIG. 3, the head main body 51 of the component mounting head 47 is detachably mounted on the front portion of the head holding base 45. An engagement block 61 is provided on the upper portion of the back surface of the head main body 51 mounted on the front portion of the head holding base 45, and an engagement roller 62 as an engagement member is disposed on the engagement block 61 in the X-axis direction. It is supported so as to be rotatable about parallel axes. Further, two leg portions 63 having a V-shaped cross section are formed at a position spaced apart by a predetermined amount in the X-axis direction at a position spaced apart by a predetermined amount in the X-axis direction.

  On the other hand, a storage hole 64 for storing the engagement block 61 is formed in the upper portion of the front portion of the head holding base (X-axis moving base) 45, and the storage hole 64 is engaged with both sides of the engagement block 61. A pair of upper positioning rollers 65 engaged so as to sandwich the block 61 are provided apart from each other in the X-axis direction. In addition, two V-groove leg support portions 66 that engage with the two leg portions 63 are formed in the lower portion of the front portion of the head holding base 45, and a pair of leg support portions 66 are disposed slightly above the leg support portions 66. The lower positioning roller 67 is spaced apart in the X-axis direction. The pair of lower positioning rollers 67 engage with the inner end surfaces of the two leg portions 63 of the head main body 51.

  Thereby, the engagement between the two leg portions 63 and the two leg support portions 66 restricts the movement of the component mounting head 47 in the Z-axis direction with respect to the head holding base 45, and for each pair of upper positioning positions. The component mounting head 47 moves in the X-axis direction with respect to the head holding base 45 by engaging the roller 65 and the lower positioning roller 67 with both sides of the engagement block 61 and the inner end surfaces of the two leg portions 63, respectively. In this state, the back surface portion of the component mounting head 47 can come into surface contact with the front surface portion of the head holding base 45.

  The pair of upper and lower positioning rollers 65 and 67 and the leg support 66 constitute a positioning support member 93 that positions and supports the component mounting head 47 on the head holding base 45.

  As shown in FIG. 4, a pusher member 70 is supported on the upper portion of the head holding base 45 so as to be slidable in the vertical direction, and the rotational motion is restricted by the pins 71. An inclined surface 70 a that engages with the engaging roller 62 of the component mounting head 47 is formed at the tip (lower end) of the pusher member 70. The inclined surface 70 a of the pusher member 70 functions so as to press the back surface of the component mounting head 47 against the front surface of the head holding table 45 by engaging with the engaging roller 62. At the upper end of the pusher member 70, a wedge surface 70b is formed which engages with a wedge surface of a pressing member described later.

  A support portion 45a extending in the Y-axis direction along the upper surface of the component mounting head 47 is provided on the upper portion of the head holding base 45, and the operating shaft 73 is supported by the support portion 45a so as to be movable in the Y-axis direction. ing. A pressing member 74, which has a wedge surface 74 a that engages with the wedge surface 70 b of the pusher member 70, is connected to the distal end portion of the operating shaft 73 by a pin 75 so as to be relatively movable in the Y-axis direction by a predetermined amount. That is, the pin 75 is integrally penetrated in the radial direction of the pressing member 74, and both end portions thereof are engaged with the support portion 45 a so as to be movable in the Y-axis direction. It is engaged so as to be relatively movable in the axial direction by a predetermined amount. As a result, the relative rotation of the operating shaft 73 and the pressing member 74 is disabled, and the operating shaft 73 and the pressing member 74 are relatively movable by a predetermined amount in the Y-axis direction.

  A compression spring 77 is inserted between the operating shaft 73 and the pressing member 74, and the pressing member 74 is engaged with the pusher member 70 with respect to the operating shaft 73 by the urging force of the compression spring 77. It comes to press. Thus, the pusher member 70 is pressed downward by the urging force of the compression spring 77 acting on the pressing member 74, and the pressing force is increased by the engaging action of the wedge surfaces 74a and 70b.

  Further, one end of an operation member 80 made of a lever is supported on the support portion 45a so as to be rotatable about a support shaft 81 parallel to the X axis. A pinion 82 is fixed to the operation member 80 concentrically with the support shaft 81, and the pinion 82 is meshed with a rack 83 formed on the operating shaft 73. A lock member 85 that locks the operation member 80 at a predetermined position is supported on the support portion 45a so as to be rotatable about a support shaft 86. The lock member 85 is formed with an engagement hook 85 a that is detachably engaged with an engagement hook 80 a formed on the operation member 80. The lock member 85 is engaged with both the engagement hooks 80 a and 85 a by the biasing force of the spring 87. Is biased in the direction of engagement. The lock member 85 is provided with an operation portion 88 that rotates the lock member 85 against the urging force of the spring 87. By operating the operation portion 88, the engagement between the engagement hooks 80a and 85a is established. Thus, the operation member 80 is allowed to rotate. The engaging hooks 80a of the operating member 80 and the engaging hooks 85a of the locking member 85 are formed with inclined surfaces. When the operating member 80 is locked, the locking members 85 are engaged with the springs 87 by the engagement of these inclined surfaces. The two hooks 80a and 85a can be engaged with each other by the urging force of the spring 87 after being released against the urging force. In the figure, reference numeral 90 denotes a restricting pin that restricts the rotation of the lock member 85 by the spring 87.

  With such a configuration, when the engagement of both engagement hooks 80a and 85a is released and the operation member 80 is rotated by a predetermined angle in the direction of the arrow in FIG. 4, the pinion 82 is rotated around the support shaft 81. The operating shaft 73 is retracted by a predetermined amount through the rack 83 engaged therewith. Since the pressing member 74 is also retracted by the retraction of the operating shaft 73, the engaging force of the pusher member 70 to the engaging roller 62 is released, and the component mounting head 47 is removed from the head holding base (X-axis moving base) 45. It becomes possible.

  Conversely, when the operation member 80 is rotated in the direction of the opposite arrow in FIG. 4, the operating shaft 73 is advanced via the rack and pinion mechanism. Thereby, the pressing member 74 is advanced by the urging force of the compression spring 77, and the wedge surface 74 a is engaged with the wedge surface 70 b of the pusher member 70. As a result, the pusher member 70 is pressed in the direction in which the pusher member 70 is engaged with the engagement roller 62, and the back surface portion of the component mounting head 47 is pressed against the front surface portion of the head holding table 45. When the operation member 80 is further rotated, the operating shaft 73 is further advanced while compressing the compression spring 77 with respect to the pressing member 74, so that the engagement force of the pusher member 70 to the engagement roller 62 is further increased. As a result, the component mounting head 47 can be clamped to the head holder 45 with a strong clamping force.

  Thus, when the operation member 80 is rotated by a predetermined angle, the engagement hook 85a of the lock member 85 is engaged with the engagement hook 80a of the operation member 80 by the biasing force of the spring 87, and the operation member 80 is Locked in position (original position shown in FIG. 4).

  As described above, when the component mounting head 47 is clamped, the component mounting head 47 can be clamped to the head holding base 45 in a state where the compression spring 77 is compressed and the urging force of the compression spring 77 is increased. The clamping force of the component mounting head 47 can be increased. In addition, the wedge action can increase the clamping force due to the compression of the compression spring 77, and the component mounting head 47 can be firmly clamped to the head holding base 45.

  The pusher member 70 is pressed in a direction to engage the engagement roller 62 by the operation shaft 73, the pressing member 74, the compression spring 77, the operation member 80, the lock member 85, and the like, so that the component mounting head 47 is moved to the head holding base. A clamp device 95 for clamping to 45 is constituted.

  Next, the operation in the first embodiment will be described. In order to replace the component mounting head 47 from the head holding base (X-axis moving base) 45, the operation member 88 is operated to rotate the lock member 85 against the urging force of the spring 87, and the operation is performed. The engagement between the engagement hook 80a of the member 80 and the engagement hook 85a of the lock member 85 is released, and the operation member 80 is allowed to rotate. In this state, the operation member 80 is rotated around the support shaft 81 in the direction of the arrow in FIG. As a result, the pinion 82 is rotated integrally with the operation member 80, and the operating shaft 73 is retracted via the rack 83.

  In this case, when the operating shaft 73 is retracted, the compression spring 77 in the compressed state is expanded (restored), so that only the operating shaft 73 is retracted, and when the operating shaft 73 is retracted by a predetermined amount, The pressing member 74 is retracted integrally with the operating shaft 73 via the pin 75. Thereby, the wedge surface 74a of the pressing member 74 is separated from the wedge surface 70b of the pusher member 70, and the pressing action of the pusher member 70 is released.

  As a result, the upward movement of the pusher member 70 is allowed, so that the upper portion of the component mounting head 47 can be separated from the front portion of the head holding base 45, and the component mounting head 47 is further lifted. However, by separating from the front portion of the head holding base 45, the leg portion 63 of the component mounting head 47 is detached from the leg support portion 66 of the head holding base 45, and the component mounting head 47 is removed from the head holding base 45. The

  Next, when another component mounting head 47 is mounted on the head holding base 45, the leg portion 63 of the component mounting head 47 is engaged with the leg support portion 66 of the head holding base 45, and While the engagement block 61 and the leg 63 are engaged with the upper and lower positioning rollers 64 and 67 of the head holding table 45, the back surface of the component mounting head 47 is brought close to the surface of the head holding table 45. As a result, the pusher member 70 in the free state is lifted by the engagement roller 62, the engagement roller 62 gets over the pusher member 70, and the back surface portion of the component mounting head 47 is brought into contact with the surface portion of the head holding base 45.

  Thereafter, the operating member 80 is rotated about the support shaft 81 in the direction of the opposite arrow in FIG. 4, whereby the pinion 82 is rotated integrally with the operating member 80, and the operating shaft 73 is moved via the rack 83. Move forward. Accordingly, the pressing member 74 is advanced through the compression spring 77, the wedge surface 74a of the pressing member 74 is engaged with the wedge surface 70b of the pusher member 70, the pusher member 70 is engaged with the engagement roller 62, The back surface portion of the component mounting head 47 is pressed against the front surface portion of the head holding base 45.

  When the operation member 80 is further rotated, the operating shaft 73 is further advanced while compressing the compression spring 77 with respect to the pressing member 74, and the pressing force of the pusher member 70 by the compression spring 77 is increased. Thus, when the operation member 80 is rotated by a predetermined angle and returned to the original position, the engagement hook 85a of the lock member 85 is engaged with the engagement hook 80a of the operation member 80 by the biasing force of the spring 87, and the operation is performed. Member 80 is locked in place. In this state, the component mounting head 47 can be clamped to the head holding base 45 while the compression spring 77 is compressed. Therefore, the clamping force of the component mounting head 47 can be increased, and the component mounting head 47 can be attached to the head holding base. 45 can be clamped firmly.

  As described above, according to the first embodiment described above, the operating shaft 73 increases the urging force of the compression spring 77 against the pressing member 74 that presses the pusher member 70 when the component mounting head 47 is clamped. It is relatively moved in the direction and can be locked in a state where the spring force of the compression spring 77 is increased as compared with that during unclamping. As a result, the clamping force of the component mounting head 47 can be increased as compared with the conventional one. Moreover, the clamping force of the component mounting head 47 can be further improved by wedge-engaging the pressing member 74 and the pusher member 70. Therefore, even if the weight of the component mounting head 47 is increased or the axial movement of the head holding base (X-axis moving base) 45 in the X-axis and Y-axis directions is increased, the component mounting head with respect to the head holding base 45 47 can be suppressed, so that component mounting work can be performed at high speed and with high accuracy.

  5 and 6 show a second embodiment of the present invention. In the first embodiment described above, the component mounting head 47 is moved to the head holding base (X-axis) by the axial movement of the operating shaft 73. In the second embodiment, the component mounting head 47 is clamped to the head holding base 45 by the rotational movement of the operating shaft 173.

  In FIG. 5, reference numeral 173 denotes an operating shaft rotatably supported by a head holding base 45 (not shown) (see FIG. 4), and 174 is rotatably supported concentrically with the operating shaft 173 by the head holding base 45. A pressing member is shown. The operating shaft 173 and the pressing member 174 are connected so as to be relatively rotatable by a predetermined angle, and a cam surface 174 a that presses the pusher member 70 is formed at the tip of the pressing member 174. Between the operating shaft 173 and the pressing member 174, a torsion spring 177 having one end engaged with the operating shaft 173 and the other end engaged with the pressing member 174 is interposed. The urging force of the torsion spring 177 applies a rotational torque to the pressing member 174 with respect to the operating shaft 173 and presses the pusher member 70 with the cam surface 174a of the pressing member 174.

  One end of an operation member 180 formed of a lever is rotatably supported by the operation shaft 173 by a support shaft 97. A spring 98 is interposed between the operation member 180 and the operating shaft 173, and the spring 98 urges the operation member 180 toward a lock position (original position) that engages with the lock member 185. . Accordingly, the lock by the lock member 185 is released, and the operation member 180 is rotated about the support shaft 97 against the spring 98 to extend in the radial direction of the operation shaft 173. In this state, the operating shaft 173 can be easily rotated by rotating the operating member 180 around the operating shaft 173 by lever operation.

  In the second embodiment, in the original position shown by the solid line in FIG. 5, the lock by the lock member 185 is released, and the operation member 180 is rotated in the direction of arrow a in FIG. 5), the operating shaft 173 is rotated by further rotating the operating member 180 in the direction of the arrow b about the operating shaft 173. As the operating shaft 173 rotates, the pressing member 174 is also rotated via the torsion spring 177, so that the cam surface 174a of the pressing member 174 is separated from the pusher member 70 as shown in FIG. 47 can be removed from the head holder 45. In the unclamped state illustrated in FIG. 6, when the hand is released from the operation member 180 indicated by the two-dot chain line, the operation member 180 is returned to the solid line state by the urging force of the spring 98.

  When another component mounting head 47 is mounted on the head holding base 45, the component mounting head 47 is positioned and supported on the head holding base 45, and in this state, the operation member 180 indicated by a two-dot chain line in FIG. By rotating the shaft 173 in the direction of the arrow c in FIG. 6, the operating shaft 173 is rotated integrally with the operation member 180. Accordingly, the pressing member 174 is rotated via the torsion spring 177 and the cam surface 174 a of the pressing member 174 is engaged with the pusher member 70. As a result, the back surface portion of the component mounting head 47 is pressed against the front surface portion of the head holding base 45.

  When the operation member 180 is further rotated, the operating shaft 173 is further rotated while compressing the torsion spring 177 with respect to the pressing member 174, and the pressing force of the pusher member 70 by the torsion spring 177 is increased. In this way, after the operating member 180 is rotated by a predetermined angle, the operating member 180 is rotated in the direction of the arrow d around the support shaft 97 by the biasing force of the spring 98 to return to the original position. The position is locked by the lock member 85.

  As a result, also in the second embodiment, the component mounting head 47 can be clamped to the head holding base 45 with the urging force of the torsion spring 177 increased as in the first embodiment. Therefore, the clamping force of the component mounting head 47 can be increased.

  In the above-described embodiment, the configuration in which the component mounting head 47 of the electronic component mounting apparatus 10 is detachably mounted on the head holding base (X-axis moving base) 45 has been described. In addition to mounting, it is possible to inspect other work heads that are detachably mounted on the head holding base 45, for example, coating heads that apply a coating material such as adhesive or solder to the circuit board B, and circuit boards B. The present invention can be applied to mounting of inspection heads and the like, and further, can be applied to mounting of work heads of a wide range of manufacturing work machines such as processing heads for processing workpieces.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention described in the claims. Of course, it is possible.

  The working head mounting apparatus according to the present invention is suitable for use in an electronic component mounting apparatus in which a component mounting head can be replaced according to the type of a circuit board or the like.

  DESCRIPTION OF SYMBOLS 10 ... Electronic component mounting apparatus, 45 ... Head holding stand (X-axis movement stand), 47 ... Working head (component mounting head), 51 ... Head main body, 62 ... Engagement member (engagement roller), 70 ... Pusher member, 70b ... Wedge surface, 73, 173 ... Operating shaft, 74, 174 ... Pressing member, 74a ... Wedge surface, 77 ... Compression spring, 80, 180 ... Operating member (operating lever), 81 ... Support shaft, 82 ... Pinion, 83 ... Rack, 85 ... Lock member, 93 ... Positioning support, 95 ... Clamp device, 177 ... Torsion spring.

Claims (5)

A work head mounting device for detachably mounting a work head on a head holding base,
A positioning support member that positions and supports the work head on the head holding base, a pusher member that removably engages with an engagement member provided on the work head, and the pusher member that engages with the engagement member. A clamping device for pressing the working head to the head holding base by pressing in the direction of joining,
The clamping device
A pressing member that presses the pusher member in a direction to engage with the engaging member; an operating member that is connected to the pressing member so as to be relatively movable by a predetermined amount; and an interposition between the operating member and the pressing member. A spring that urges the pusher member in a direction in which the pusher member is engaged with the engagement portion, an operation member that operates the operation member in the urging direction of the spring, and the operation member that is the operation member and the pressing member. A locking member that locks in a state in which the spring force of the spring is increased from that during unclamping by relative movement of
A working head mounting device comprising:   2. The operating member according to claim 1, wherein the operating member is supported by the head holding base so as to be movable back and forth, and the spring is constituted by a compression spring that expands and contracts in the moving direction of the operating member, and the pusher member is moved by the movement of the operating member. The working head mounting device, wherein the engaging member is pressed by the urging force of the compression spring.   3. The working head mounting device according to claim 2, wherein the pressing member and the pusher member are engaged via a wedge surface.   4. The operation member according to claim 1, wherein the operation member includes a lever supported by the head holding base so as to be rotatable about a support shaft, and a pinion is provided on the center of the support shaft. A working head mounting device, wherein the working member is provided integrally with the operation member, and a rack formed on the operating shaft is engaged with the pinion.   2. The operating member according to claim 1, wherein the operating member is supported by the head holding base so as to be able to rotate forward and backward, and the spring is constituted by a torsion spring that generates a torsion torque in a rotating direction of the operating member. A working head mounting apparatus, wherein the pusher member presses the engaging member by the biasing force of the torsion spring.

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