JP5086869B2 - Electronic component mounting device - Google Patents

Description

  The present invention relates to an electronic component mounting apparatus that mounts an electronic component sucked and held by a suction nozzle provided on a mounting head on a printed circuit board, and more specifically, a beam movable in one direction along the beam. The present invention relates to an electronic component mounting apparatus that mounts an electronic component that is sucked and held by a suction nozzle provided in a mounting head that is movable in another direction orthogonal to one direction on a printed board.

This type of electronic component mounting apparatus is disclosed in, for example, Patent Document 1. In order to attach the mounting head to the beam, it is generally fixed using a tool.
JP-A-6-61700

  However, when the mounting head is attached to the beam, if the tool is used and fixed frequently, a burden is imposed on the operator, which is troublesome.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to prevent a worker from being burdened as much as possible when attaching a mounting head having a suction nozzle.

Therefore, the first invention is an electronic component mounting apparatus for mounting an electronic component sucked and held by a suction nozzle provided in a mounting head on a printed circuit board.
A pair of position restricting members are provided at the bottom of the head support member, and a pair of guide members extending in the vertical direction are provided at the top of the head support member;
A rear surface of the mounting head support that supports the head mounting body to which the mounting head is mounted is provided with a position restricting portion at a lower end portion, and a pair of guided portions that extend vertically above the position restricting portion. Provided a guided body,
Lowering the mounting head support while the guided portion of the guided body provided on the mounting head support is guided by the guide member provided on the head support member;
The position restricting portion at the lower end of the guided body is restricted in the front-rear direction and the up-down direction by the position restricting member provided on the head support member,
A mounting head support that supports a head mounting body to which the mounting head is mounted is fixed to the head support member .
A left and right restricting body for restricting a left and right direction of a guided portion of the guided body is provided on one side of a pair of position restricting members provided on the head support member .

According to a second aspect of the present invention, an electronic component sucked and held by a suction nozzle provided in a mounting head provided on a beam movable in one direction so as to be movable in another direction perpendicular to the one direction along the beam. In an electronic component mounting apparatus for mounting on a printed circuit board,
A pair of position restricting members are provided at the lower part of the head supporting member that moves in the other direction orthogonal to the one direction along the beam, and a pair of guide members extending in the vertical direction are provided at the upper part of the head supporting member;
A rear surface of the mounting head support that supports the head mounting body to which the mounting head is mounted is provided with a position restricting portion at a lower end portion, and a pair of guided portions that extend vertically above the position restricting portion. Provided a guided body,
Lowering the mounting head support while the guided portion of the guided body provided on the mounting head support is guided by the guide member provided on the head support member;
The position restricting portion at the lower end of the guided body is restricted in the front-rear direction and the up-down direction by the position restricting member provided on the head support member,
Fixing a mounting head support that supports a head mounting body to which the mounting head is mounted to the head support member that moves along the beam ;
A left and right restricting body for restricting a left and right direction of a guided portion of the guided body is provided on one side of a pair of position restricting members provided on the head support member .

According to a third aspect of the present invention, in the first or second aspect of the electronic component mounting apparatus, each position regulating member provided on the head support member is inclined at a predetermined angle in the depth direction as it goes downward on the back surface side. Provided with a guide restricting surface, the position restricting portion provided at the lower end of each guided body comprises a guide restricting surface inclined at a predetermined angle in the depth direction as it goes downward on the front side,
The guide restricting surface formed on each position restricting member is guided and restricted by a guide restricting surface formed on a position restricting portion provided on each guided body.

  According to the present invention, it is possible to prevent the operator from being burdened as much as possible when attaching the mounting head including the suction nozzle.

  Hereinafter, in an electronic component mounting apparatus for mounting an electronic component on a printed circuit board, a structure for mounting a mounting head having a suction nozzle on a beam will be described. First, in FIGS. 1 to 3, reference numeral 1 denotes a beam that can be moved in one direction by a driving source, and reference numeral 2 denotes a head support plate that is movable along the beam 1 in another direction orthogonal to the one direction.

  Reference numeral 3 denotes a guide member having a predetermined length extending vertically on both side portions of the head support plate 2, and a rear inner portion for restricting and guiding the movement of each guided body 12, which will be described later, forward. The guide member 3 guides downward movement while restricting movement of each guided body 12 in the left-right direction and the front-rear direction.

  Reference numerals 6 and 7 denote positions for restricting the downward movement of the guided member 10 guided and lowered by the guide member 3 and positioning it in the vertical direction, and restricting the forward movement and positioning in the front-rear direction. It is a regulating member and is provided at the lower part of both side portions of the head support plate 2. The left position restricting member 6 is provided with a pair of left and right position restricting cam followers 6A and 6B so as to face the upper part on the back side, and between the two cam followers 6A and 6B, the lower side is also on the lower side. A guide regulating surface 6C that is inclined at a predetermined angle in the depth direction as it goes to is formed. A guide restricting surface 7C that is inclined at a predetermined angle in the depth direction as it goes downward is formed on the upper part of the back side of the right position restricting member 7. The cam follower 6A is fixed in position, and the cam follower 6B is biased by a spring (not shown) so as to move toward the 6A side. In a state where the cam follower 6A is biased and regulated in position, the distance between the cam followers 6A and 6B is The guide member 10 is disposed so as to be a little narrower than the lateral width of the guided member 10.

  Reference numeral 10 denotes a mounting head support provided with an electrical box 11 at the top. Guided bodies 12 of a predetermined length are provided on both sides of the rear surface of the mounting head support 10 to extend vertically. Guided projections 13 projecting from the outer surface of the body 12 are fitted into the restricting guide grooves 3A of the guide members 3 to be guided while being controlled to move outward and forward. In addition, at the lower end of each guided body 12, a guided regulation surface 12 </ b> C that is inclined at a predetermined angle in the depth direction is formed on the front surface so as to become thinner as it goes downward.

  The angle formed by the horizontal lower surface of the guided body 12 and the guided restricting surface 12C is the same as the angle formed by the horizontal upper surface of the position restricting member 7 and the guide restricting surface 7C, and the head support plate. A space S is formed between 2 and the position regulating member 7, and a volume is formed in the space S so that the lower end portion of the guided body 12 is accommodated.

  A head lifting motor 15 is provided on the mounting head support 10 and guide rails 16 extending in the vertical direction are provided on the left and right sides, respectively. Reference numeral 18 denotes a mounting head. A plurality of suction nozzles 19 are arranged on the circumference of the mounting head 18 at a predetermined interval, and a drive motor (direct drive) for rotating the mounting head 18 is provided. • Built-in motor.

  The mounting head 18 is attached to a head mounting body 20, and a ball screw 22 rotated by the head lifting motor 15 is fitted to a nut body 21 provided on the top of the head mounting body 20. Since a linear guide 23 slidably engaged with the guide rail 16 is attached at an intermediate position, the ball screw 22 is rotated by driving the head lifting / lowering motor 15, and the linear guide 23 is moved along the guide rail 16. Slides, and the head mounting body 20 moves up and down via the nut body 21.

  A nozzle selection motor 27 has a pulley 28 on its output shaft, and a belt 31 is stretched between a pulley 30 provided on a shaft 29 penetrating the mounting head 18 and the pulley 28. When the nozzle selection motor 27 is driven, the shaft 29 is rotated via the pulleys 28 and 30 and the belt 31, so that the attachment body 39 described later also rotates.

  The nozzle shaft 33 connected to each of the suction nozzles 19 is fixed in an integrated state through the connecting body 34, and a cam follower 35 is provided on the top thereof.

  A spline 37 is provided on the shaft 29, and an attachment body 39 to which a nozzle lifting / lowering body 38 is fixed is fixed around the spline 37. Reference numeral 40 denotes a nozzle raising / lowering motor, and a nut body 43 is fitted to a drive shaft 42 via a coupling 41, and a bearing 44 is provided between the nut body 43 and the spline 37.

  An operation of attaching the mounting head 18 including the suction nozzle 19 to the beam 1 movable in one direction with the above configuration will be described. First, as shown in FIG. 4, the beam 1 and head support plate 2 side attached to the apparatus main body side of the electronic component mounting apparatus, and the head mounting body 20 and mounting head support 10 side to which the mounting head 18 is attached. The mounting head support 10 is directly attached to the head support plate 2 and the mounting head 18 is attached to the beam 1, which will be described in detail below.

  First, the guided portion 13 of each guided body 12 fixed to the back surface of the mounting head support 10 is inserted into the restriction guide groove 3A of each guide member 3 fixed to the head supporting plate 2 from above. . Then, as shown in FIG. 5, the guided bodies 12 are lowered while being guided by the guide members 3 while the left-right direction and the front-rear direction are regulated.

  As each guided body 12 is lowered, the lower end portion of the left guided body 12 comes into contact with the cam followers 6A and 6B, and the cam follower 6B is moved from the cam follower 6A against the urging force of a spring (not shown). The guided body 12 is lowered while being moved away from the cam followers 6A and 6B. That is, the cam follower 6B biases the spring outward so as to press the guided body 12 against the cam follower 6A, so that the position of the guided body 12 and the mounting head support 10 in the left-right direction is regulated while being guided. Will descend.

  When the guided bodies 12 are further lowered, the guided restricting surfaces 12C of both guided bodies 12 are lowered while sliding on the guide restricting surfaces 6C and 7C of the position restricting members 6 and 7, and are pushed backward and downward. The descent stops in such a state. That is, the position restricting members 6 and 7 and the head support plate 2 together with the head support plate 2 regulate the positions of the guided bodies 12 and the mounting head support 10 in the front-rear direction and the left-right direction. Stop.

  In such a state, when the operator lowers the operating lever 46 of the toggle clamp 45 provided on the head support plate 2, the presser 47 swings and the guided body 12 is moved as shown in FIG. Is pressed from above. Therefore, the locked state is maintained and a locked state is obtained. As a result, both the guided body 12 and the mounting head support 10 are also regulated in the vertical direction. In addition to the above-described positional regulation in the front-rear direction and the horizontal direction, the vertical position regulation is also added. It can be easily installed without using a tool. Instead of the toggle clamp 45, various fixing means can be used.

  As described above, when the operation switch is operated after the mounting head 18 is attached to the beam 1, the printed circuit board is transported to the positioning unit of the transport device (not shown) and positioned, and the beam 1 according to the mounting data. Is moved in the Y direction (direction perpendicular to the printed board conveyance direction) by driving the Y-axis motor, and the mounting head 18 is moved in the X direction along the beam 1 by the X-axis motor, according to the step number of the mounting data. Then, the first electronic component is moved up to the upper position of the component supply unit of the component supply unit.

  Then, since the nut body 21 is lowered by the head lifting / lowering motor 15, the linear guide 23 is guided to the guide rail 16, and the mounting head 18 is lowered to a predetermined position. Then, the position of the suction nozzle 19 that sucks the electronic component corresponding to the electronic component of the component supply unit and the position of the nozzle lifting / lowering body 38 are matched when viewed from above and below. That is, the drive motor (direct drive motor) is driven to rotate the mounting head 18, and the nozzle selection motor 27 is driven to rotate the shaft 29 via the pulleys 30, 28 and the belt 31, thereby attaching the attachment body 39. Is rotated so that the position of the suction nozzle 19 and the position of the nozzle lifting / lowering body 38 coincide with each other when viewed from above and below.

  Next, when the nozzle lifting / lowering motor 40 is driven, the nut body 43 is lowered, so that the nozzle shaft 33 is lowered while the nozzle lifting / lowering body 38 is in contact with the cam follower 35 corresponding to the selected suction nozzle 19, and the suction nozzle 19. Is lowered. Therefore, it is possible to pick up and take out the electronic component at the component removal position of the component supply unit.

  Then, the same operation as described above is performed, and all the suction nozzles 19 of the mounting head 18 can take out electronic components from the component supply unit one after another. After the removal, the suction nozzle 19 of the mounting head 18 is raised and moved up above the component recognition camera (not shown), and the electronic components sucked by the plurality of suction nozzles 19 are imaged and received by the recognition processing device. A recognition process is performed to grasp the amount of positional deviation with respect to the suction nozzle 19. In addition, the recognition mark attached to the printed circuit board positioned by the substrate recognition camera 50 attached to the head support plate 2 is imaged and recognized by the recognition processing device, and the position of the printed circuit board is grasped. .

  Then, by adding both recognition processing results of the recognition processing device to the mounting data, the electronic components are sequentially mounted at the corrected positions on the printed circuit board by the Y-axis motor, the X-axis motor and the driving motor in the mounting head 18. When all the electronic components are mounted, the printed circuit board is discharged to the downstream device.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

It is a principal part right view of an electronic component mounting apparatus. It is a principal part front view of an electronic component mounting apparatus. It is a principal part top view of an electronic component mounting apparatus. It is a principal part right view of the electronic component mounting apparatus for demonstrating the operation | movement at the time of attaching the mounting head provided with the suction nozzle to the beam. It is a principal part right view of the electronic component mounting apparatus for demonstrating the operation | movement at the time of attaching the mounting head provided with the suction nozzle to the beam.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Beam 2 Head support plate 3 Guide member 3A Control guide groove 6, 7 Position control member 6A, 6B Cam follower 6C, 7C Guide control surface 10 Mounting head support 12 Guided body 12C Guided control surface 13 Guided part 18 Mounting head 19 Suction nozzle 20 Head mounting body

Claims (3)

In an electronic component mounting apparatus that mounts an electronic component sucked and held by a suction nozzle provided on a mounting head on a printed circuit board,
A pair of position restricting members are provided at the bottom of the head support member, and a pair of guide members extending in the vertical direction are provided at the top of the head support member;
A rear surface of the mounting head support that supports the head mounting body to which the mounting head is mounted is provided with a position restricting portion at a lower end portion, and a pair of guided portions that extend vertically above the position restricting portion. Provided a guided body,
Lowering the mounting head support while the guided portion of the guided body provided on the mounting head support is guided by the guide member provided on the head support member;
The position restricting portion at the lower end of the guided body is restricted in the front-rear direction and the up-down direction by the position restricting member provided on the head support member,
A mounting head support that supports a head mounting body to which the mounting head is mounted is fixed to the head support member .
An electronic component comprising a right and left restricting body for restricting a left and right direction of a guided portion of the guided body on one side of a pair of position restricting members provided on the head support member. Mounting device. Mounted on a printed circuit board is an electronic component that is sucked and held by a suction nozzle provided on a mounting head that is movable in one direction along the beam and movable in another direction perpendicular to the one direction. In the electronic component mounting apparatus to
A pair of position restricting members are provided at the lower part of the head supporting member that moves in the other direction orthogonal to the one direction along the beam, and a pair of guide members extending in the vertical direction are provided at the upper part of the head supporting member;
A rear surface of the mounting head support that supports the head mounting body to which the mounting head is mounted is provided with a position restricting portion at a lower end portion, and a pair of guided portions that extend vertically above the position restricting portion. Provided a guided body,
Lowering the mounting head support while the guided portion of the guided body provided on the mounting head support is guided by the guide member provided on the head support member;
The position restricting portion at the lower end of the guided body is restricted in the front-rear direction and the up-down direction by the position restricting member provided on the head support member,
Fixing a mounting head support that supports a head mounting body to which the mounting head is mounted to the head support member that moves along the beam ;
An electronic component comprising a right and left restricting body for restricting a left and right direction of a guided portion of the guided body on one side of a pair of position restricting members provided on the head support member. Mounting device. Each position restricting member provided on the head support member has a guide restricting surface inclined at a predetermined angle in the depth direction as it goes downward on the back surface side, and the position restricted member provided on the lower end of each guided body. The part is provided with a guide regulating surface inclined at a predetermined angle in the depth direction as it goes downward on the front side,
The guide regulation surface formed in each said position regulation member is guidance regulated by the guidance regulation surface formed in the to-be-regulated part provided in each said to-be-guided body. Electronic component mounting device.