JP2005015070A - Cart for replacing part supply part and part mounting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cart for replacing a part supply part for maintaining the quality of part mounting and increasing productivity by safely and efficiently performing setup operation in replacing the part supply part. <P>SOLUTION: A lead-in part 133 leading a pressurized fluid from the outside therein and a lift drive part 83 lifting a mounting part 25 by utilizing the pressurized fluid led from the lead-in part 133 are installed in the lift part 20 of the cart 10 for replacing the part supply part. The pressurized fluid is led into the fluid cylinder 85 of the lift drive part 83 to drive the lift part 20 through a lift lever 88. By selecting a valve circuit, the rising and lowering of the lift part 20 can be limited according to the position of the cart 10. A semi-fixing mechanism 111 having a toggle clamp 114 which, in transporting the part supply part 2, securely fixes the part supply part 2 onto the mounting part 25, and in mounting on a mounting stand 9, can separate the part supply part 2 from the mounting part 25 is installed in the mounting part 25. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component supply unit replacement cart that attaches and detaches a component supply unit to and from a component mounting apparatus that mounts electronic components on a circuit board, and a component mounting apparatus including the component supply unit replacement cart.
[0002]
[Prior art]
In the component mounting technology field where electronic components are mounted on circuit boards, components have been developed to improve component mounting quality and productivity in response to recent miniaturization of electronic components, higher density of component mounting, and higher mounting speed. There is a demand for high positioning accuracy of the supply unit and efficient setup change when switching models.
[0003]
FIG. 12 shows an example of a component mounting apparatus. In the figure, a component mounting apparatus 1 carries a component supply unit 2 that supplies components to the component mounting apparatus 1, a mounting head 4 that takes out components from the component supply unit 2 and mounts them on a circuit board 3, and carries the mounting head 4. An XY robot 5 and a substrate holding unit 7 for carrying and holding the circuit board 3 are provided. During operation, the mounting head 4 takes out a component from a component supply device (hereinafter referred to as “part cassette”) 8 mounted on the component supply unit 2, and places the component on the circuit board 3 based on the conveyance of the XY robot 5. Transport to the opposite position. The circuit board 3 carried into the component mounting apparatus 1 is regulated and held by the board holding unit 7, and the mounting head 4 mounts components at a predetermined mounting position of the circuit board 3. The mounting head 4 that has finished mounting the component moves to a position facing the component supply unit 2 in order to take out the next component from the component supply unit 2. Thereafter, the above-described operation is repeated.
[0004]
In FIG. 12, the circuit board 3 is carried into the component mounting apparatus 1 from the right side in the X direction in the drawing, and is carried out from the left side in the X direction after completing the component mounting. In this specification, the conveyance direction (X direction) of the circuit board 3 is referred to as a horizontal direction, and the Y direction in the figure orthogonal to the horizontal direction is referred to as a front-rear direction. The left side is called the front. In the component mounting apparatus 1 shown in FIG. 12, two component supply unit mounting bases (hereinafter simply referred to as “mounting bases”) 9 are provided on the front surface, and the component supply unit 2 can be attached to each. Each of the plurality of parts cassettes 8 mounted on the component supply unit 2 supplies a component supply tape 21 drawn from the reel 12 to the component mounting apparatus 1. The component supply unit 2 is mounted on a component supply unit replacement cart (hereinafter, simply referred to as “cart”) 110, and the reel 12 on which the components to be mounted are wound in a tape shape is a reel holder 11 of the cart 10. It is stored inside.
[0005]
In FIG. 12, the component supply unit 2 is already attached to the left-side attachment base 9 among the two attachment bases 9. The component mounting unit 2 mounted on another cart 110 faces the empty mounting base 9 on the right side in the X direction in the figure, and is ready to be mounted by advancing the cart 110 to the mounting base 9. The cart 110 contacts and separates from the component mounting apparatus 1 with the component supply unit 2 mounted, and attaches or removes the component supply unit 2 from the mounting base 9 of the component mounting apparatus 1. When the component supply unit 2 on which the cart 110 is advanced and mounted is mounted on the mounting base 9, the operator operates the clamp switch 6 provided in the component mounting apparatus 1 to fix the fixing unit (not shown) built in the mounting base 9. The mechanism operates to fix the component supply unit 2 to the component mounting apparatus 1.
[0006]
Since the illustrated cart 110 holds the reel 12 in the reel holder 11, the cart 110 is kept attached to the component mounting apparatus 1 during operation of the component mounting apparatus 1. However, in the type in which the reel 12 is directly attached to the parts cassette 8, the cart 110 can be separated from the component mounting apparatus 1 after the parts supply unit 2 is attached to the mounting base 9. As shown in FIG. 12, the reel 12 is separated from the parts cassette 8 and stored in the reel holder 11 to support it, thereby suppressing the amount of protrusion of the reel 12 portion to the front side of the apparatus and supplying parts. The center of gravity of the cart 110 when the portion 2 is mounted is lowered.
[0007]
By using the cart 110, a plurality of parts cassettes 8 mounted on the component supply unit 2 can be attached to the component mounting apparatus 1 or removed from the component mounting apparatus 1 at once. Further, the attachment / detachment of the parts cassette 8 to / from the component supply unit 2 which takes time can be performed in advance outside the component mounting apparatus 1 before the model switching.
[0008]
FIG. 13 shows an outline of the cart 110 disclosed by the prior art (see, for example, Patent Document 1). The cart 110 includes four wheels including caster wheels and is movable. The cart 110 is fixed to the frame unit 15 and is fixed to the frame unit 15. The mounting part 25 mainly holds and lifts the mounted component supply part 2. The raising / lowering of the raising / lowering part 20 is driven by a hydraulic jack (not shown) that expands and contracts by the operation of the pedal 16. The hydraulic jack is mounted under the floor of the frame portion 15.
[0009]
The reel holder 11 described above is provided in the central portion of the cart 110 located on the upper side of the frame portion 15 and accommodates the reel 12 around which the component supply tape 21 is wound. The reel 12 is inserted into a central boss 14 of the plate 13 and is rotatably supported. The plate 13 is rotatable about a shaft 17. As a result, the reel 12 can be tilted together with the plate 13 toward the front side (right side) in the Y direction in the figure, and one reel 12 can be attached and detached without being disturbed by other adjacent reels 12. it can.
[0010]
Further, a tape collection box 24 for collecting the used component supply tape 21 that falls after the component supply is finished is provided on the upper side of the frame portion 15. The reel holder 11 and the tape collection box 24 can be pulled out together with the tray 18 to the front side in the Y direction in the figure, and thus the used component supply tape 21 collected in the tape collection box 24 can be discarded. It becomes.
[0011]
In FIG. 13, only one reel 12 is drawn in the reel holder 11 and only one parts cassette 8 is drawn in the component supply unit 2, but this is for ease of understanding. According to the type of components mounted on the circuit board 3, a large number of reels 12 are accommodated in the reel holder 11, and a large number of parts cassettes 8 are mounted on the component supply unit 2.
[0012]
FIG. 14 shows an example of the parts cassette 8. The parts cassette 8 is mounted on the component supply unit 2 with the right side of the drawing facing the component mounting apparatus 1. In the figure, the parts cassette 8 includes a main body portion 26, a conveyance drive portion 27, and a component take-out portion 28. The component supply tape 21 pulled out from the reel 12 positioned below (not shown) as indicated by a two-dot chain line passes through the tape guide 29 and is intermittently conveyed from the left side to the right side by the conveyance drive unit 27. During the conveyance, components are taken out one by one by the suction action of the mounting nozzle 19 attached to the mounting head 4 (see FIG. 12) of the component mounting apparatus 1 in the component extraction unit 28.
[0013]
The parts supply tape 21 that has been used after the parts are taken out is continuously conveyed along a tape guide 29 provided in the main body 26 of the parts cassette 8, and is lowered from the discharge port 32 at the bottom of the parts cassette 8. Is discharged. The cover tape 22 that covers and protects the components housed in the component supply tape 21 is peeled off from the component supply tape 21 immediately before the component take-out portion 28 and is temporarily lifted upward as shown by a two-dot chain line. Thereafter, it falls downward and is discharged from the discharge port 32 in the same manner. The used part supply tape 21 and the cover tape 22 discharged in this way are collected in the tape collection box 24 of the cart 110 described immediately below.
[0014]
A plurality of convex fixing pins 33 are attached to the lower surface of the main body portion 26 of the parts cassette 8. When the parts cassette 8 is mounted on the component supply unit 2, the plurality of fixing pins are inserted into one of a number of slot grooves provided in the component supply unit 2 to be described later, so that the parts cassette 8 is brought into a predetermined mounting position. Position.
[0015]
Since components tend to be miniaturized as electronic devices become smaller and lighter, the component supply unit 2 must be attached to the component mounting apparatus 1 with high positioning accuracy in order to realize high-quality component mounting. In the prior art, a mechanism for positioning the component supply unit 2 is disclosed (for example, see Patent Document 1). According to this disclosed mechanism, the cart 110 (or the component supply unit 2) is completely separated from the component mounting apparatus 1, the state in which the carts 110 are close to each other, and the state in which the carts 110 (or the component supply unit 2) are in close contact with each other. The parts supply section is attached to the mounting base while partly regulating the lifting and lowering operation of the cart lifting section for each section.
[0016]
Further, the disclosed prior art further discloses a buffer type fixing mechanism that enables reliable positioning of the component supply unit 2 mounted on the cart 110 when the component supply unit 2 is attached to the mounting base 9. (See also Patent Document 1). If the component supply unit 2 is simply placed on the mounting unit 25 of the cart 110, there is a risk that the component supply unit 2 may fall off the mounting unit 25 of the cart 110 due to a change in weight balance during the transportation of the cart 110. is there. On the other hand, when the component supply unit 2 is fixed to the mounting unit 25 with a fastening member such as a bolt in order to prevent falling off, a problem occurs in positioning when the component mounting unit 1 is mounted on the mounting base 9.
[0017]
For example, when the floor surface on which the component mounting apparatus 1 is installed has irregularities and inclinations, the cart 110 rides on them and tries to attach the component supply unit 2 to the mounting base 9 while keeping the inclination. At this time, if the component supply unit 2 is bolted to the mounting unit 25, the component supply unit 2 cannot be attached in close contact with the mounting base 9, and the positioning accuracy is significantly impaired. In order to prevent this, it is necessary to take measures such as loosening a fastening member such as the bolt when positioning the component supply unit, which causes a long setup time. The above-described shock-absorbing fixing mechanism provides one corresponding solution.
[0018]
FIG. 15 shows a state seen from the side of the buffer-type fixing mechanism disclosed in Patent Document 1 described above. In the figure, the component supply unit 2 is mounted on a mounting arm 109 provided in the mounting unit 25 of the cart. In this state, the reference horizontal plate 101 serving as the lower surface of the component supply unit 2 is in close contact with the upper surface of the mounting arm 109. is doing. A female screw 41 is provided on the lower surface of the reference horizontal plate 101, and a stepped bolt 43 that passes through the through hole 42 of the mounting arm 109 is fastened to the female screw 41.
[0019]
The stepped bolt 43 holds the spring 46 in a compressed state between the bolt head 44 and the mounting arm 109. The spring 46 in the compressed state urges the stepped bolt 43 through the bolt head 44 downward in the Z axis shown in the figure. As a result, a force is applied to press the reference horizontal plate 101 toward the mounting arm 109, and the component supply unit 2 is held in that position to prevent the drop.
[0020]
On the other hand, when mounting the component supply unit 2 equipped with the buffer type fixing mechanism to the mounting base 9, the mounting arm 109 further compresses the spring 46 after the reference horizontal plate 101 is placed on the mounting base 9. The reference horizontal plate 101 and the mounting arm 109 are separated by descending. Thus, for example, even when the cart 110 is inclined, the reference horizontal plate 101 can be placed in close contact with the mounting base 9, and the component supply unit 2 can be accurately positioned.
[0021]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-230589
[0022]
[Problems to be solved by the invention]
However, there has been room for improvement in the elevating mechanism for the cart elevating part and the buffering fixing mechanism for the cart mounting part disclosed in the above-described prior art. First, when the component supply unit 2 is attached to the mounting base 9 of the component mounting apparatus 1 in the elevating mechanism of the elevating unit, as is clear from FIG. 13, the operator is provided with the pedal 16 provided on the frame unit 15 of the cart 110. To move the component supply unit 2 toward the component mounting apparatus 1 for positioning. In addition, the use of a hydraulic jack was slow and slow in operating speed, resulting in poor efficiency.
[0023]
On the other hand, with respect to the shock-absorbing fixing mechanism, the parts supply unit 2 having a large number of parts cassettes 8 and having a mass of 50 to 200 kg is held by the spring 46, which is an elastic material. The component supply unit 2 is not stabilized due to the balance change during the backward movement, and may tilt or vibrate back and forth before it falls off. For this reason, it may become an unstable factor at the time of conveyance and positioning, and workability may be hindered.
[0024]
Therefore, the present invention eliminates the above-mentioned problems, improves workability when replacing the component supply unit of the component mounting apparatus, and enables safe and efficient setup change to increase productivity in component mounting. It is an object of the present invention to provide a component supply unit replacement cart that can be used, and a component mounting apparatus including the component supply unit replacement cart.
[0025]
[Means for Solving the Problems]
The present invention provides a component supply unit replacement cart configured to be connectable to an external pressurized fluid supply source and configured to raise and lower the component supply unit via a fluid cylinder by introducing pressurized fluid from the supply source. Replacement of the component supply unit with a semi-fixing mechanism that can securely fix the component supply unit on the mounting unit during transport and can be separated from the mounting unit when mounted on the mounting base The problem described above is solved by providing a cart, and specifically includes the following contents.
[0026]
That is, according to one aspect of the present invention, a frame unit including a plurality of wheels, an elevating unit fixed to the frame unit and elevating a mounted component supply unit, and fixed to the elevating unit, the component supply A mounting part that mounts and holds the part so that it can be raised and lowered, and is a component supply part replacement cart that attaches and detaches the part supply part to and from the component mounting apparatus, and the lifting part includes: A component supply unit comprising: an introduction unit capable of introducing a pressurized fluid from the outside; and a lift drive unit for raising and lowering the mounting unit using the pressurized fluid introduced from the introduction unit Related to replacement cart.
[0027]
The elevating drive unit includes a telescopic fluid cylinder whose rear end is swingably held by the elevating unit, and a lower end of an elevating rod that has one end fixed to the tip of the fluid cylinder and the other end elevating in the elevating unit. And a support portion that pivotally supports the lift lever so that the pressurized fluid from the outside is guided to the fluid cylinder to contact the other end of the lift lever. The elevating rod can be driven to raise and lower the elevating part.
[0028]
When the component supply unit replacement cart contacts and separates from the component mounting device, the elevating unit controls the introduced pressurized fluid to approach the component supply unit replacement cart and the component mounting device. It is preferable to provide a fluid control mechanism that restricts the operation of raising or lowering the elevating unit according to the above. At least one of the component supply unit replacement cart and the component mounting device includes a detection mechanism that detects an approach distance between the component supply unit replacement cart and the component mounting device, and the fluid control mechanism includes: It can comprise so that the valve mechanism operated according to the detection result by a detection mechanism may be included.
[0029]
In this case, the approach distance between the component supply unit replacement cart and the component mounting apparatus is set such that the component A and the component mounting apparatus are completely separated from each other. While the supply unit replacement cart advances from the region A toward the component mounting apparatus, the component supply unit mounted on the component supply unit replacement cart is transported onto the component supply unit mounting base of the component mounting apparatus. Area B, the area supply section replacement cart is temporarily stopped, the area supply section is placed on the mounting base, and the part supply section replacement cart is further removed from the area C. It moves forward and is divided into four regions, the region D where the component supply unit is positioned on the mounting base, and the restriction of the ascending / descending operation of the ascending / descending unit is restricted to the restriction of descending in the region A, region The limit of descent in B, Be any one of a rise limitation in range D, or may be any combination thereof. In addition, a lock mechanism that reliably holds the mounting portion in the raised position can be provided.
[0030]
According to another aspect of the present invention, a frame unit having a plurality of wheels, an elevating unit fixed to the frame unit and elevating a mounted component supply unit, and fixed to the elevating unit, the component supply unit A mounting part that is mounted so as to be able to move up and down, and is a part supply part replacement cart that attaches and detaches the part supply part to and from the part mounting apparatus, and the mounting part includes the part A semi-fixing mechanism for detachably fixing the supply unit, and the semi-fixing mechanism is configured to clamp the component supply unit so that the component supply unit can be separated from the mounting unit when the component supply unit is attached to the mounting base of the component mounting apparatus. The present invention relates to a parts supply part replacement cart, which is constituted by a clamp mechanism that releases and clamps the parts supply part to the mounting part except during the attachment.
[0031]
The clamp mechanism includes a belt-shaped clamp mounting plate and a hollow cylindrical shape fixed to the clamp mounting plate, which can protrude upward from the mounting portion by a predetermined length through the mounting portion from the back surface. A collar, a clamp fixed to the clamp mounting plate, capable of clamping the component supply portion by pressing the back surface of the mounting portion, and a fastening means capable of fastening the collar, the clamp mounting plate, and the component supply portion The clamp mechanism is fixed to the component supply unit by fastening the collar and the clamp mounting plate and the back surface of the component supply unit by the fastening means penetrating the hollow cylindrical portion of the collar. Can be formed. The clamp mechanism may include a switching mechanism that is automatically clamped when the component supply unit is attached to the component mounting apparatus and that is automatically clamped and fixed when the component supply unit is removed.
[0032]
According to still another aspect of the present invention, a component supply unit that supplies a component, a mounting head that extracts and mounts the component from the component supply unit, a robot that transports the mounting head, and a circuit board that carries the circuit board are regulated. A component that is mounted on a predetermined mounting position of the regulated and held circuit board by moving the component taken out from the component supply unit by conveyance of the robot. It is a mounting apparatus, Comprising: The component supply part replacement | exchange cart which attaches / detaches the said component supply part is a component mounting apparatus characterized by being any one of the component supply part replacement | exchange cart mentioned above.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
A component supply unit replacement cart according to a first embodiment of the present invention will be described with reference to the drawings. In the following embodiments, the same components as those according to the prior art are denoted by the same reference numerals, and the following explanations focus on differences from the prior art. Shall be stated. The present embodiment includes a component mounting apparatus including a cart described below.
[0034]
FIG. 1 shows main components of a cart 10 according to the present embodiment. In order to facilitate understanding, in the figure, the frame portion 15 (see FIG. 13) in the configuration of the cart 10 is omitted, and the elevating portion 20 and the mounting portion 25 as other main components are mainly shown. The omitted frame portion 15 is located in the lower part of the figure, and the lower ends of the pair of elevating portions 20 are fixed to the frame portion 15. The upper end of the elevating part 20 supports the mounting part 25 so as to be movable up and down. The component mounting apparatus 1 is located in front of the cart 10 in the figure in the Y direction (left back side).
[0035]
In FIG. 1, the mounting unit 25 for mounting the component supply unit 2 is driven up and down in the Z direction by a pair of lifting units 20 disposed on both sides of the cart 10 in the X direction. Each elevating unit 20 includes an elevating rod 81 that fixes and lifts the mounting unit 25, an elevating guide 82 that supports the elevating rod 81 so as to be movable up and down, and an elevating drive unit 83 that drives the elevating rod 81 to move up and down. It has.
[0036]
Of these, the elevating drive unit 83 has a rear end fixed to the elevating guide 82 so as to be swingable, a telescopic fluid cylinder 85 having a joint 84 at the front end, and one end rotatably fixed to the joint 84. A lift lever 88 whose end abuts on the lower end of the lift rod 81 and supports the lift rod 81 from below is connected to both lift levers 88 in the left and right lift drive parts 83, and these are pivotally supported. And a shaft 87. The connecting shaft 87 is rotatably supported by a pair of bearings 89 fixed to the lifting guide 82 at both ends. Accordingly, the lifting lever 88 can be rotated about the connecting shaft 87 by the expansion and contraction of the fluid cylinder 85, and the lifting rod 81 that is in contact with the other end is raised and lowered by this rotation. The elevating lever 88 amplifies the force of the fluid cylinder 85 according to the ratio of the arm length from the connecting shaft 87 serving as the rotation center and transmits the amplified force to the elevating rod 81. The connecting shaft 87 also plays a role of absorbing variations in the extension speed of the pair of left and right fluid cylinders 85 by connecting both the lift levers 88 in the left and right lift part drive units 83.
[0037]
The operation of the lifting drive unit 83 configured as described above is as follows. By introducing the pressurized fluid into the fluid cylinder 85, the fluid cylinder 85 expands and pushes down the joint with the lift lever 88 downward via the joint 84. As a result, the lifting lever 88 rotates about the connecting shaft 87 in the counterclockwise direction in the drawing, and pushes up the lifting rod 81 that is in contact with the other end of the lifting lever 88. By this action, the lifting rod 81 supported by the lifting guide 82 rises, and the mounting portion 25 fixed to the upper end of the lifting rod 81 and the component supply portion 2 (not shown) mounted thereon are lifted.
[0038]
On the contrary, when the mounting portion 25 is lowered, the pressurized fluid in the fluid cylinder 85 is removed, so that the fluid cylinder 85 can be contracted. The supporting force of the elevating lever 88 that supports the elevating rod 81 is lost, and the mounting unit 25 on which the component supply unit 2 is mounted is lowered by its own weight. If the fluid cylinder 85 is a double-acting type, the pressurized fluid is configured to be introduced in a direction in which the fluid cylinder 85 contracts.
[0039]
FIG. 2 shows the relationship between the component supply unit 2 mounted on the cart 10 (not shown in FIG. 2) configured as described above and the mounting base 9 of the component supply unit provided in the component mounting apparatus 1. Show. The mounting base 9 shown on the right side of the figure is formed in a substantially U shape by an end plate 91 and a pair of arm plates 92 located on both sides in the X direction of the figure with respect to the end plate 91. Among these, both arm plates 92 include a positioning mechanism for positioning the component supply unit 2 at a predetermined position when the component supply unit 2 is attached to the mounting base 9.
[0040]
Each arm plate 92 first includes a horizontal guide surface 93 and a horizontal stopper 94 for positioning and guiding the component supply unit 2 up and down along the Z direction in the figure, and a vertical stopper for positioning and guiding the parts supply unit 2 back and forth along the Y direction in the figure. 96 and a positioning pin 97, and a vertical guide surface 98 and a guide roller 99 for guiding left and right along the X direction in the figure.
[0041]
On the other hand, the component supply unit 2 shown on the left side of the drawing includes a reference horizontal plate 101, an exchange plate 102 fixed on the reference horizontal plate 101, and a guide plate 103 attached perpendicularly to the exchange plate 102. It is mainly composed. Stopper bolts 104 are provided on the vertical surfaces on both sides in the X direction of the reference horizontal plate 101, and the stopper bolts 104 cooperate with horizontal stoppers 94 and vertical stoppers 96 provided on both arm plates 92 of the mount 9. It helps to position the component supply unit 2. The replacement plate 102 is provided with a large number of slot grooves 106 for mounting the parts cassette 8, and the fixing pins 33 (see FIG. 14) of the parts cassette 8 are inserted into the slot grooves 106, and the large number of parts cassettes 8. Can be installed.
[0042]
The component supply unit 2 on which the parts cassette 8 is mounted is mounted on the cart 10 and advances toward the mounting base 9 of the component mounting apparatus 1 as indicated by an arrow 50 in FIG. In this specification, the movement in the direction from the front side of the component mounting apparatus 1 toward the component mounting apparatus 1 is called forward, and the movement in the opposite direction is called backward. The component supply unit 2 advances in the left-right direction (X direction in FIG. 2) while being guided by the vertical guide surface 98 and the guide roller 99, and the advancement is performed in a state where the stopper bolt 104 hits the vertical stopper 96 of the mounting base 9. Stop temporarily. At that position, the parts supply unit 2 is lowered by the lowering operation of the elevating unit 20 of the cart 10, and the reference horizontal plate 101 is placed on the pair of horizontal guide surfaces 93 of the mounting base 9. By this downward movement, the interference in the forward direction between the stopper bolt 104 and the vertical stopper 96 is released. In this state, the component supply unit 2 is advanced again in the direction of the arrow 50, and a V-shaped positioning notch (not shown) provided at the forward end of the reference horizontal plate 101 is abutted against the positioning pin 97 on the mounting base 9 side. This completes the positioning of the component supply unit 2.
[0043]
FIG. 3 shows the relationship between the two parts viewed from the side surface in the X direction when the component supply unit 2 is attached to the mounting base 9. In the drawing, each of the component supply unit 2 and the mounting base 9 is represented by a stopper bolt 104 on the component supply unit 2 side, and a horizontal stopper 94 and a vertical stopper 96 on the mounting base 9 side. The operation when attaching the component supply unit 2 to the mounting base 9 proceeds in the direction indicated by the arrow in the figure. That is, in the region A where the cart 10 is completely separated from the component mounting apparatus 1, the stopper bolt 104 of the component supply unit 2 mounted on the mounting unit 25 of the cart 10 is raised by the lifting operation of the lifting unit 20. . Next, the cart 10 moves forward toward the mounting base 9 in the right direction in the drawing, whereby the component supply unit 2 is conveyed onto the mounting base 9. At this time, the stopper bolt 104 (that is, the component supply unit 2) passes over the horizontal stopper 94 and reaches the vertical stopper 96. This interval is referred to as region B. In the next region C, the stopper bolt 104 hits the vertical stopper 96, the forward movement is temporarily stopped, and the component supply unit 2 is lowered by driving the elevating unit 20. At this time, the reference horizontal plate 101 of the component supply unit 2 is placed on the horizontal guide surface 93 of the mount 9. When the component supply unit 2 is lowered, the interference between the stopper bolt 104 and the vertical stopper 96 is released, and the component supply unit 2 can be advanced again. When the component supply unit 2 is pushed in again, it further advances into the area D, and then the reference horizontal plate 101 comes into contact with the positioning pin 97 shown in FIG. 2 and stops. By fitting the pin 97 into the above-described positioning notch provided at the tip of the reference horizontal plate 101, the component supply unit 2 is positioned in both the front-rear and left-right directions. In the vertical direction, positioning is performed by placing the component supply unit 2 on the horizontal guide surface 93.
[0044]
The operation when removing the component supply unit 2 from the mounting base 9 proceeds in the direction opposite to the arrow in the figure, contrary to the above. In other words, the component supply unit 2 is pulled back from the region D in the left direction in the drawing and moved backward, and in the region C, the stopper bolt 104 hits the horizontal stopper 94 and temporarily stops. Here, since the vertical interference between the stopper bolt 104 and the vertical stopper 96 is avoided, the component supply unit 2 is raised by the operation of the elevating unit 20 of the cart 10. As a result of this rise, the interference between the stopper bolt 104 and the horizontal stopper 94 is released and then returned from the region B to the region A, and the elevating unit 20 is lowered to lower the component supply unit 2 from the cart 10.
[0045]
In the process of moving the component supply unit 2 between the region A and the region D in this way, restricting either the ascending / descending operation of the component supply unit 2 with a certain standard leads to a safety measure. For example, the lowering (particularly abrupt lowering) of the component supply unit 2 in the region A is likely to be tilted or dropped from the cart 10 and is preferably avoided. Further, in the region B, the inadvertent lowering of the component supply unit 2 may cause an accident such as a drop on the mounting base 9. Furthermore, the ascending operation of the component supply unit 2 in the region D may lead to destruction of the mounting base 9 and the component mounting apparatus 1. In the cart 10 according to the present embodiment, the fluid cylinder 85 is used for the lifting drive unit 83 of the lifting unit 20, and the pressurized fluid introduced into the fluid cylinder 85 is appropriately controlled using the fluid control mechanism. It is assumed that these restrictions on the lifting operation are arbitrarily selected.
[0046]
FIG. 4 shows an example of a fluid control mechanism that controls the lifting / lowering operation of the lifting / lowering unit 20 of the cart 10 shown in FIG. In the following, an example of a valve circuit using an air valve has been described. However, a hydraulic valve circuit can also be used, and this applies to other valve circuits described below. However, in order to avoid deterioration of workability and work environment due to oil leakage, an air valve circuit is preferable.
[0047]
In FIG. 4, each fluid cylinder 85 provided in each of the pair of lift drive units 83 (see FIG. 1) of the cart 10 is a single-acting cylinder capable of introducing compressed air (pressurized fluid) in the upward direction. . Here, the ascending operation of the component supply unit 2 is limited in the region D shown in FIG. For this reason, the component mounting apparatus 1 is provided with a dog at a position where the mechanical valve 135 can be pushed in when the cart 10 (that is, the component supply unit 2) is in the region D so that the mechanical valve 135 is turned on in the region D. It is done.
[0048]
The introduction of the compressed air is performed by connecting an introduction part for guiding the compressed air into the valve circuit to an external compressed air supply source. For this reason, the cart 10 is provided with an air joint 133 as the introduction portion. In the illustrated example, a pair of air joints 133 are provided on both the left and right sides so that the cart 10 may be disposed on either of the two mounting bases 9 provided in the component mounting apparatus 1. These air joints 133 can be provided, for example, in a pair of left and right lifting parts 20 (see FIG. 1). In order to prevent air from flowing out from the other air joint 133 when one air joint 133 is connected to the compressed air supply source, a distribution valve 134 is arranged between them. A quick connector 136 provided on the main body side is attached to each air joint 133 to facilitate connection between the valve circuit and an external compressed air supply source. Further, the control of the raising and lowering is performed by the control valve 137. A flow regulating valve 131 with a check valve is provided on the fluid introduction side of each fluid cylinder 85, and a flow regulating valve 132 is provided on the discharge side.
[0049]
According to the valve circuit according to the above configuration, the raising / lowering portion 20 of the cart 10 can be both raised and lowered during the period from the region A to the region C, and can be lowered in the region D, but the rise is restricted. Is done. Thereby, it can prevent that the component supply part 2 of the state attached to the mounting base 9 raises carelessly, and destroys the mounting base 9 or the component mounting apparatus 1. FIG.
[0050]
Next, FIG. 5 shows another aspect of the valve circuit that restricts the lifting operation of the lifting unit 20. According to the illustrated valve circuit, the lowering operation of the elevating unit 20 in the region B is restricted in addition to the restriction of the ascending operation in the region D by the valve circuit shown in FIG. In FIG. 5, the mechanical valve 135a limits the lowering of the elevating unit 20 in the OFF state. Then, in the state of region C, it is pushed into a dog provided in the component mounting apparatus 1 and turned ON to release the lowering restriction. In addition, the mechanical valve 135b is pushed into a dog provided in the component mounting apparatus 1 in the state of the region D and is turned on, thereby restricting the lifting of the elevating unit 20. In the state of the area A and the area C, the mechanical valve 135c is pushed in when the elevating unit 20 is raised, and the mechanical valve 135d is pushed in when lowered. The main body is provided with a circuit similar to that shown in FIG. In addition, the broken line of a figure has shown the pilot operation pipe line. Other configurations are the same as those shown in FIG.
[0051]
By using the valve circuit as shown in FIG. 5, it is possible to prevent the component supply unit 2 from being accidentally lowered while passing through the region B, and inadvertent contact between the component supply unit 2 and the mounting base 9. It is possible to avoid the possibility that the component supply unit 2 or the mounting base 9 will be destroyed.
[0052]
FIG. 6 shows still another aspect of the valve circuit that restricts the lifting operation of the lifting unit 20 of the cart 10. Here, the region A and the region B are configured to be able to rise but restrict the descending. In the region D, the descending is conversely possible but the ascent is restricted. In the region C, the ascent and the descending are possible. ing. A double-acting cylinder is used as the fluid cylinder 85, and an up switch and a down switch are separately arranged in the center of the circuit in the figure. When the elevating unit 20 of the cart 10 is raised, the mechanical valve 135c on the up switch side is pushed in, and when lowered, the mechanical valve 135d on the down switch side is pushed in. A mechanical valve 135a is arranged in series with the mechanical valve 135d on the lowering switch side. The mechanical valve 135a is pushed into a dog provided in the component mounting apparatus 1 when it is in the region C and is turned on, thereby allowing the elevating unit 20 to be lowered. Further, in the state of the region D, the mechanical valve 135b is pushed into a dog provided in the component mounting apparatus 1 to be turned on, and the ascent of the elevating unit 20 is restricted. Although omitted in FIG. 6, a circuit similar to that in FIG. 4 is provided on the main body side.
[0053]
By configuring the valve circuit of the cart 10 as described above, the cart 10 is compressed to the cart 10 in the state of the area A where the cart 10 is separated from the component mounting apparatus 1 in addition to the operation restriction by the valve circuit shown in FIGS. Even when air is not supplied, the component supply unit 2 can be held at the raised position, and the risk of inadvertent lowering of the component supply unit 2 and the accompanying drop can be eliminated. .
[0054]
Each of the valve circuits shown in FIG. 4 to FIG. 6 shows a part of the example that restricts the raising / lowering operation of the raising / lowering unit 20 of the cart 10. In order to restrict the raising / lowering operation of the cart 10 arbitrarily according to the positioning mechanism for positioning the component supply unit 2 on the mounting base 9 or the configuration of the component mounting apparatus 1 and the cart 10, other valve circuits should be employed. Of course it is possible.
[0055]
FIG. 7 and FIG. 8 show an example of a fluid control mechanism including a lock mechanism for reliably holding the lifting rod 81 (or the component supply unit 2) in the raised position after the lifting rod 81 (or the component supply unit 2) is raised. Show. FIG. 7 shows an outline of this locking mechanism. The fluid cylinder 85 is extended from the state of the cart 10 shown in FIG. 1, and the lifting lever 88 is rotated counterclockwise in the drawing to lift the lifting rod 81 from below. It shows the state when it is pushed up and raised. In FIG. 7, the display of the mounting portion 25 located above the cart 10 is omitted. When the elevating lever 88 rotates, the distal end portion of the lock cylinder 138 fixed to the frame portion 15 (see FIG. 13) side of the cart 10 extends so as to restrain the upper surface of the elevating lever 88. As a result, the tip of the lock cylinder 138 locks at the position where the lifting rod 88 is swung, so that the lifting lever 88 can be used even when the cart 10 is in the region A or when the pressure of the fluid cylinder 85 is reduced for some reason. Is prevented from rotating in the clockwise direction in the figure, and therefore, the lifted rod 81 and the component supply unit 2 are locked in the raised position without being lowered.
[0056]
FIG. 8 shows a circuit diagram at this time, and pressurized fluid introduced from the outside is supplied to the fluid cylinder 85 via the quick connector 136. At the same time, pressurized fluid is supplied to the lock cylinder 138 and the tip portion is contracted against the spring biasing force, so that the locked state of the lift lever 88 is released. Next, in order to rotate the elevating lever 88 in the reverse direction in order to lower the elevating rod 81 from the raised position, the operator needs to operate the control valve 139. By this operation, the lifting rod 81 can be lowered. In region D, the valve 135 is turned on to limit the rise. When the supply of pressurized fluid from the valve 141 and the quick connector 136 is stopped again in the region A, the lock cylinder 138 is extended by the spring biasing force, and the tip end portion locks the lift lever 88, and in the reverse direction (downward direction). The rotation of the is prevented. Therefore, the elevating rod 81 is locked at the raised position.
[0057]
As mentioned above, although the raising / lowering drive part 83 of the cart 10 concerning this Embodiment and its control were demonstrated, according to the technique disclosed by the patent document 1 (Unexamined-Japanese-Patent No. 2001-230589) mentioned above, by pedal operation. The raising / lowering of the raising / lowering part is required, and the raising / lowering restriction of the raising / lowering part as a safety measure is limited to the lowering in the area A and the raising in the area D. According to the cart 10 according to the present embodiment, the elevating drive unit 83 of the elevating unit 20 of the cart 10 is provided with a fluid cylinder 85, and this is supplied to an external pressurized fluid supply source via a valve circuit selected arbitrarily. By connecting, the raising / lowering of the raising / lowering part 20 can be controlled by simple valve operation. Further, the use of various valve circuits in the restriction of raising and lowering increases the room for selection and improves workability. Thereby, it is possible to shorten the time required for the setup change accompanying the switching of the circuit board model, and it is possible to improve the equipment operation rate.
[0058]
In the above-described example, the pair of elevating parts 20 is arranged on both the left and right sides of the cart 10, and the reel holder 11 and the tape collection box 24 can be arranged in the central space of the cart 10 generated by this ( (Refer FIG. 1, FIG. 13). On the other hand, when the reel 12 is directly attached to the parts cassette 8, there is no need to provide a space for the reel holder 11 in the central portion of the cart 10, and one elevating portion 20 is disposed in the central portion. Thus, the mounting portion 25 can be raised and lowered. In this case, since there is only one lifting drive 83, the connecting shaft 87 connecting the left and right lifting levers 88 shown in FIG. 1 is not necessary, and a single lifting lever 88 can be rotated instead of the connecting shaft 87. It is sufficient to provide a support portion comprising a bearing 89 that is pivotally supported on the shaft.
[0059]
In the above-described example, the mechanical valves 135, 135a, and 135b are provided in the fluid circuit, and the pressurized fluid in each of the regions A to D is appropriately controlled by pushing these mechanical valves with the dogs disposed in the component mounting apparatus 1. It is said. As an alternative to this, the proximity distance between the component mounting apparatus 1 and the component supply unit 2 is detected by a detection sensor using any means such as electrical or optical means, and a solenoid that can be operated based on a signal generated by the detection result A valve mechanism such as a valve may be arranged in the fluid circuit.
[0060]
Next, a part supply unit replacement cart according to a second embodiment of the present invention will be described with reference to the drawings. The present embodiment relates to a cart provided with a semi-fixing mechanism that fixes and holds the component supply unit detachable (floatable) in a state where the component supply unit is mounted on the mounting unit of the cart.
[0061]
FIG. 9 shows the semi-fixing mechanism 111 of the cart mounting portion 25 according to the present embodiment as viewed from the side. In the figure, the component supply unit 2 is mounted on the mounting unit 25 of the cart, and the semi-fixing mechanism 111 according to the present embodiment is the mounting arm 109 of the mounting unit 25 (see FIG. 1; FIG. 9 shows one side view). )) On the opposite surface of the component supply unit 2 (the back surface of the mounting arm). By forming the mounting arm 109 in, for example, a U shape with the lower side open, the semi-fixing mechanism 111 can be disposed on the back surface of the mounting arm 109.
[0062]
FIG. 10 shows an outline of the semi-fixing mechanism 111. In the figure, a semi-fixing mechanism 111 includes a belt-like clamp mounting plate 112, a pair of hollow cylindrical collars 113 that are fixed by welding or the like through the clamp mounting plate 112, and bolts or the like on the back surface of the clamp mounting plate 112. And a toggle clamp 114 fixed by the. The clamp mounting plate 112 has sufficient strength to prevent the component supply unit 2 from falling off when attached to the component supply unit 2. The collar 113 is formed so that the axial length of the hollow cylindrical shape is longer than the plate thickness of the mounting arm 109 through which it passes. The toggle clamp 114 may be any type of clamp as long as it can hold the component supply unit 2 by pressing the back surface of the mounting arm 109. One semi-fixing mechanism 111 configured as described above is arranged for each of the pair of left and right mounting arms 109.
[0063]
Returning to FIG. 9, the collar 113 of the semi-fixing mechanism 111 can pass through the through hole 116 provided in the mounting arm 109 and can protrude from the upper surface of the mounting arm 109 by the predetermined length. On the back surface of the reference horizontal plate 101 of the component supply unit 2, a female screw 117 is provided at a position corresponding to each collar 113. Is done. In this fastened state, the semi-fixing mechanism 111 is fixed to the reference horizontal plate 101 of the component supply unit 2 via the collar 113. The component supply unit 2 and the semi-fixation mechanism 111 are in a state of being able to float upward with respect to the mounting arm 109 by the protruding length of the collar 113.
[0064]
In a state where the cart 10 is located away from the mounting base 9 of the component mounting apparatus 1, the tip of the toggle clamp 114 is clamped so as to press the back surface of the mounting arm 109 as shown in FIG. It is fixed in close contact with the mounting arm 109 of the mounting portion 25. As a result, the component supply unit 2 is held at a predetermined position, and the component supply unit 2 does not rattle or tilt when the cart 10 is transported.
[0065]
FIG. 11 shows a state where the component supply unit 2 fixed to the mounting arm 109 via the semi-fixing mechanism 111 as described above is attached to the mounting base 9 of the component mounting apparatus 1. In the middle of moving the cart 10 to the component mounting apparatus 1 in the right direction of the drawing (by moving from the region C to the region D shown in FIG. 3), the dog bracket 119 provided on the mounting base 9 is used by the toggle clamp 114. The clamped state is released. As a result, the component supply unit 2 can be separated and floated from the mounting unit 25 by the protruding length of the collar 113, and the component supply unit regardless of whether the floor surface with which the cart 10 is in contact is inclined. 2 can be placed in close contact with the horizontal guide surface 93 (see FIG. 2) of the mount 9 with high accuracy.
[0066]
Conversely, when removing the component supply unit 2 from the mounting base 9, when the cart 10 is retracted from the component mounting apparatus 1 from the above state (movement from the region D to the region C shown in FIG. 3), the toggle clamp 114 is dragged. The bracket 119 is operated to return to the clamped state, and the component supply unit 2 is firmly fixed on the mounting arm 109 again, and the component supply unit 2 is kept in that position to prevent the dropout. The toggle clamp 114 is released from restraint by the dog bracket 119 when the component supply unit 2 is lifted from the mounting base 9.
[0067]
By providing the cart 10 with the semi-fixing mechanism 111 according to the present embodiment having the above-described configuration, the component supply unit 2 can be safely mounted on the cart 10 and conveyed, and the operation of the toggle clamp 114 can be controlled by the dog bracket. By automatically using 119, the burden on the operator can be reduced, and accurate positioning of the component supply unit 2 can be performed safely and efficiently. Compared with the buffer-type fixing mechanism according to the prior art shown in FIG. 15, the component supply unit 2 is securely maintained in close contact with the mounting arm 109 by the toggle clamp 114 without depending on the elastic element (spring 46). The component supply unit 2 does not become unstable. Thereby, a setup change can be performed more smoothly and an equipment operation rate can be improved.
[0068]
In the above description, the switching mechanism using the toggle clamp 114 and the dog bracket 119 is used for the clamping operation of the semi-fixing mechanism 111. As an alternative to this, a clamp mechanism composed of a solenoid or the like that moves up and down in the direction of pressing the mounting arm 109 is attached to the clamp mounting plate 112, and the reference horizontal plate 101 of the component supply unit 2 is mounted on the horizontal guide surface 93 of the mounting base 9. The clamping mechanism may be operated by using a signal from a detection mechanism that detects whether it is placed or separated from its placement state using any electrical or optical means. The detection mechanism may be installed on either the mounting portion 25 of the cart 10 or the mounting base 9 of the component mounting apparatus 1.
[0069]
In the illustrated example, the semi-fixing mechanism 111 is fixed by fastening the mounting bolt 118 penetrating the hollow portion of the collar 113 to the female screw 117 of the component supply unit 2, but other fastening means are used. May be. For example, it is good also as what makes the stud bolt extended from the bottom face of the components supply part 2 penetrate the inside of the hollow cylindrical part of the collar 113, and fastens the front-end | tip part with a nut.
[0070]
【The invention's effect】
Implementation of a component supply unit replacement cart configured to raise and lower a component supply unit mounted on a lifting unit using pressurized fluid introduced from the outside according to the present invention, attachment of a component supply unit at the time of setup change, Removal can be performed safely and efficiently, and the effect of reducing productivity and improving productivity can be obtained.
[0071]
By implementing a parts supply unit replacement cart equipped with a semi-fixing mechanism that separably holds the component supply unit according to the present invention from the mounting unit, it is possible to easily attach the component supply unit to the component mounting apparatus at the time of setup change. Therefore, it is possible to perform the operation safely and with high positioning accuracy, and it is possible to obtain the effects of maintaining the component mounting quality and improving the efficiency of the setup change work.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a parts supply unit replacement cart according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the relationship between a component supply unit and a component supply unit when they are mounted on a component supply unit mounting base;
FIG. 3 is an explanatory diagram showing details when the relationship shown in FIG. 2 is viewed from the side;
4 is a valve circuit diagram showing one aspect of pressurized fluid control used in the parts supply unit replacement cart shown in FIG. 1; FIG.
5 is a valve circuit diagram showing another form of pressurized fluid control used in the parts supply unit replacement cart shown in FIG. 1. FIG.
6 is a valve circuit diagram showing still another form of pressurized fluid control used in the parts supply unit replacement cart shown in FIG. 1; FIG.
FIG. 7 is a perspective view showing an outline of a lock mechanism that locks the elevating unit in the raised position.
FIG. 8 is a valve circuit diagram for controlling a pressurized fluid used in a parts supply unit replacement cart provided with the lock mechanism.
FIG. 9 is a partial side cross-sectional view showing a semi-fixing mechanism of a component supply unit replacement cart according to another embodiment of the present invention.
10 is a perspective view showing details of the semi-fixing mechanism shown in FIG. 9. FIG.
11 is a partial side cross-sectional view showing another operation state of the semi-fixing mechanism shown in FIG. 9;
FIG. 12 is a perspective view of a component mounting apparatus that uses a component supply unit replacement cart according to the prior art.
13 is a perspective view showing details of the parts supply unit replacement cart shown in FIG. 12. FIG.
FIG. 14 is a side cross-sectional view showing a conventional component supply apparatus (part cassette).
FIG. 15 is a side cross-sectional view showing a buffer type fixing mechanism that fixes a component supply unit according to the prior art in a floating manner.
[Explanation of symbols]
1. 1. component mounting device; 2. parts supply unit; Circuit board; 8. 8. Parts supply device (part cassette) 10. Parts supply unit mounting base 10. Cart for parts supply replacement Reel holder, 12. Reel, 15. Frame part, 20. 20. lifting part, 21. Component supply tape, 22. Cover tape, 25. Mounting part, 83. Lifting drive unit, 85. Fluid cylinder, 87. Connecting shaft, 88. Lifting lever, 93. Horizontal guide surface, 94. Horizontal stopper, 96. Vertical stopper, 97. Positioning pins, 101. Reference horizontal plate, 104. Stopper bolt, 109. Mounting arm, 111. Semi-fixing mechanism, 112. Clamp mounting plate, 113. Color, 114. Toggle clamp, 117. Internal thread 118. Mounting bolts, 119. Dog bracket, 135. Mechanical valve, 136. Quick connector 137. Control valve, 138. Lock cylinder, 139. Control valve.

Claims (17)

A frame portion having a plurality of wheels;
An elevating unit fixed to the frame unit and elevating a mounted component supply unit;
A component supply unit replacement cart that is fixed to the lift unit and includes a mounting unit that mounts and holds the component supply unit so that the component supply unit can be moved up and down. In
The elevating part includes an introducing part capable of introducing pressurized fluid from the outside, and an elevating drive part for elevating the mounting part using the pressurized fluid introduced from the introducing part. Replacement cart for parts supply. The elevating drive unit is a telescopic fluid cylinder whose rear end is swingably held by the elevating unit, and a lower end of an elevating rod that has one end connected to the tip of the fluid cylinder and the other end elevating in the elevating unit. And an elevating lever that is in contact with the elevating lever, and a support portion that pivotally supports the elevating lever,
The elevating rod is moved up and down by driving the elevating rod that is in contact with the other end of the elevating lever by guiding the pressurized fluid from the outside to the fluid cylinder. Item 2. The parts supply unit replacement cart according to Item 1. The elevating unit is composed of a pair of elevating units arranged on the left and right sides of the parts supply unit replacement cart, and a support unit for pivotally supporting the elevating lever is provided in the pair of elevating units. 3. The parts supply unit replacement cart according to claim 2, further comprising a connecting shaft for connecting the respective lifting levers. When the component supply unit replacement cart comes into contact with or separates from the component mounting device, the introduced pressurized fluid is controlled to control the elevation according to the approach distance between the component supply unit replacement cart and the component mounting device. 4. The parts supply unit replacement cart according to claim 1, wherein the elevating unit is provided with a fluid control mechanism that restricts the operation of raising or lowering the unit. 5. . At least one of the component supply unit replacement cart and the component mounting device includes a detection mechanism that detects an approach distance between the component supply unit replacement cart and the component mounting device, and the fluid control mechanism includes 5. The parts supply unit replacement cart according to claim 4, further comprising a valve mechanism operated in accordance with a detection result by the detection mechanism. The said detection mechanism is comprised from the detection sensor which detects the said approach distance, The said valve mechanism is comprised from the solenoid valve operated by the signal from the said detection sensor, It is characterized by the above-mentioned. Cart for parts supply replacement. The detection mechanism includes a dog disposed on the component mounting apparatus side in accordance with an approach distance between the component supply unit replacement cart and the component mounting apparatus, and the valve mechanism is operated by the dog. The parts supply unit replacement cart according to claim 5, comprising a mechanical valve. An area A in which the approach distance between the component supply unit replacement cart and the component mounting apparatus is in a relationship in which the component supply unit replacement cart and the component mounting apparatus are completely separated from each other;
The component supply unit replacement cart advances from the region A toward the component mounting device, and the component supply unit mounted on the component supply unit replacement cart is conveyed onto the component supply unit mounting base of the component mounting device. Region B
The area C where the advancement of the parts supply unit replacement cart is temporarily stopped and the parts supply unit is placed on the mounting base;
The parts supply part replacement cart further advances from the area C, and the parts supply part includes four areas including an area D where the parts supply part is positioned on the mounting base,
The restriction of the operation of raising or lowering the elevating unit is any one of restriction of lowering in the region A, restriction of lowering in the region B, restriction of rising in the region D, or any combination thereof The parts supply unit replacement cart according to any one of claims 4 to 7, wherein the cart is a part supply unit replacement cart. The parts supply unit replacement cart according to any one of claims 4 to 8, wherein the elevating unit further includes a lock mechanism that locks the mounting unit at a raised position. The lock mechanism includes a lock cylinder that expands and contracts using pressurized fluid introduced from the outside, and is configured to lock the lift lever holding the lift rod at the lift position by the lock cylinder at the lift position. The parts supply unit replacement cart according to claim 9, wherein the parts supply unit replacement cart is provided. 11. The parts supply unit replacement cart according to claim 1, wherein the pressurized fluid is compressed air. A frame portion having a plurality of wheels;
An elevating unit fixed to the frame unit and elevating a mounted component supply unit;
A component supply unit replacement cart that is fixed to the lift unit and includes a mounting unit that mounts and holds the component supply unit so that the component supply unit can be moved up and down. In
The mounting unit includes a semi-fixing mechanism that detachably fixes the component supply unit,
When the semi-fixing mechanism attaches the component supply unit to the mounting base of the component mounting apparatus, the clamp is released so that the component supply unit can be separated from the mounting unit, and the component supply unit except when the mounting is performed A component supply unit replacement cart comprising: a clamp mechanism that clamps and clamps the unit to the mounting unit. The clamping mechanism is
A belt-shaped clamp mounting plate;
A hollow cylindrical collar fixed to the clamp mounting plate, which can protrude upward from the mounting portion by a predetermined length through the mounting portion from the back surface;
A clamp fixed to the clamp mounting plate capable of clamping the component supply part by pressing the back surface of the mounting part; and
Consists of fastening means capable of fastening the collar and clamp mounting plate and the component supply unit,
The clamp mechanism is fixed to the component supply unit by fastening the collar and the clamp mounting plate and the back surface of the component supply unit by the fastening means penetrating the hollow cylindrical portion of the collar. The parts supply unit replacement cart according to claim 12, wherein: The clamp mechanism includes a switching mechanism that is automatically unclamped when the component supply unit is attached to the component mounting apparatus, and is automatically clamped and fixed when the component supply unit is removed. The cart for parts supply unit replacement according to claim 13. The switching mechanism is configured by a toggle clamp of the clamp mechanism and a dog bracket provided on the mounting base that can automatically operate the toggle clamp by an operation at the time of attaching or removing the component supply unit. The parts supply unit replacement cart according to claim 14, wherein: The switching mechanism includes a solenoid of the clamp mechanism and a detection mechanism that is provided on either the mounting part side or the mounting base side and that can detect the attachment / detachment of the component supply part and operate the solenoid. The parts supply unit replacement cart according to claim 14, which is configured. A component supply unit for supplying components;
A mounting head for taking out and mounting components from the component supply unit;
A robot that conveys the mounting head;
A circuit board holding unit that carries in and holds the circuit board, and the mounting head moves the component taken out from the component supply unit by carrying the robot to determine the circuit board held in a regulated state in advance. In a component mounting device that is mounted at the mounting position,
17. The component mounting apparatus according to claim 1, wherein the component supply unit replacement cart for attaching and detaching the component supply unit is the component supply unit replacement cart according to claim 1.

Images