JP3902463B2 - Electronic component mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, a plurality of linear guide nuts provided on each component supply table by a drive motor are reciprocated while being guided along a linear guide rail provided on a machine base, and are mounted on any of the supply tables. The present invention also relates to an electronic component mounting apparatus for mounting one of a plurality of component supply units on a component extractor and mounting the electronic component extracted by the component extractor on a printed board.
[0002]
[Prior art]
This type of electronic component mounting apparatus is disclosed in Japanese Patent Laid-Open No. 2001-168579. According to the prior art electronic component mounting apparatus described in such a publication, when refueling each linear guide nut of each component supply table, the location of the linear guide nut is not well understood and the body must be entered. Don't be.
[0003]
[Problems to be solved by the invention]
For this reason, in the above prior art, it is dangerous because the oil cannot be supplied unless the body is put in, and since it is necessary to supply oil to multiple locations, it was necessary to remember which linear guide nut the operator supplied . As a result, there has been a possibility that an unlubricated portion will be generated, or that an error such as refueling a portion that has been refueled will occur.
[0004]
Accordingly, an object of the present invention is to enable safe oil supply to each linear guide nut of each component supply table.
[0005]
[Means for Solving the Problems]
Therefore, according to the first aspect of the present invention, any of the above-mentioned supply tables can be provided by reciprocating a plurality of linear guide nuts provided on each component supply table by a drive motor while being guided along a linear guide rail provided on the machine base. In an electronic component mounting apparatus for mounting one of a plurality of component supply units mounted on the component extraction tool and mounting the electronic component extracted by the component extraction device on a printed circuit board, each component supply table is provided. Oiling operation switch operated by an operator to supply oil to a plurality of linear guide nuts, and oiling operated by an operator when the oiling operation to the plurality of linear guide nuts of each component supply table is finished a work completion switch, after returning the respective component supply table to the origin position by the operation of the oil supply operation switch, follow the predetermined order Wherein said that each linear guide nut of each of the component feeding tables are provided a control device for controlling the drive motor to move in a predetermined fueling position for each operation of the oil supply operation completion switch Te.
[0006]
According to a second aspect of the present invention, the control device turns off the drive power supply of the drive motor after the movement of each linear guide nut of each component supply table to a predetermined oil supply position based on the operation of the oil supply operation completion switch is completed. It is characterized by controlling as follows.
[0007]
According to a third aspect of the present invention, the linear guide nut to be refueled after each linear guide nut of each component supply table based on the operation of the refueling work completion switch is moved to a predetermined refueling position. A display device for displaying is provided.
[0008]
According to a fourth aspect of the present invention, there is provided a display device that displays at which oiling position the oiling operation should be performed after each linear guide nut of each of the component supply tables based on the operation of the oiling operation completion switch has moved to a predetermined oiling position. It is provided.
[0009]
According to a fifth aspect of the present invention, after each linear guide nut of each of the component supply tables based on the operation of the refueling work completion switch has moved to a predetermined refueling position, the refueling operation should be performed and the refueling work should be performed. A display device for displaying which linear guide nut is to be provided is provided.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an electronic component mounting apparatus according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view of the electronic component mounting apparatus, and FIG. 2 is an external perspective view around the supply system. As shown in both figures, the electronic component mounting apparatus 1 includes a supply system that supplies an electronic component D and a mounting system 4 that mounts the electronic component D on a substrate P in parallel with each other with the apparatus main body 2 interposed therebetween. The supply system is composed of an electronic component supply device 3.
[0011]
The apparatus main body 2 includes an index unit 6 that serves as a main body of the drive system, a rotary table 7 connected to the index unit 6, and a plurality (12) of mounting heads 8 mounted on the outer periphery of the rotary table 7. The rotary table 7 is intermittently rotated by the index unit 6 at an intermittent pitch corresponding to the number of mounting heads 8. When the rotary table 7 rotates intermittently, a suction nozzle 9 as a component take-out tool mounted on each mounting head 8 appropriately faces the electronic component supply device 3 and the mounting system 4, and the electronic component D supplied from the electronic component supply device 3 is received. After adsorbing, it is rotationally conveyed to the mounting system 4 and mounted on the printed circuit board P introduced into the mounting system 4.
[0012]
The electronic component supply device 3 constituting the supply system includes a machine base 11 that is long in the front-rear direction, four slide bases (component supply table) 12 that are slidably mounted on the machine base 11, and a detachable attachment to each slide base 12. A number of tape cassettes (part supply units) 13 mounted freely and a linear motor 14 incorporated between the machine base 11 and each slide base 12 are provided. The four slide bases 12 are arranged in front of and behind the machine base 11 as a set, and two sets of tape cassettes 13 are alternately exposed to the apparatus main body 2 via the slide bases 12 and 12 of each set. I am doing so. That is, while the two slide bases 12 and 12 each having a large number of tape cassettes 13 are moved (slid) to the position of the apparatus main body 2 to perform the component supply operation, the other two On the slide bases 12 and 12, the tape cassette 13 is exchanged for the next operation.
[0013]
As shown in FIG. 3, each tape cassette 13 is thinly formed, and a plurality of thinly formed tape cassettes 13 are mounted side by side with a narrow gap on the upper surface of the slide base 12. In this case, each tape cassette 13 is positioned on the upper surface of the slide base 12 and is detachably mounted by lever operation. The mounting head 8 (suction nozzle 9) of the apparatus main body 2 faces the tip of the tape cassette 13 mounted on the slide base 12 in order to suck the electronic component D. A carrier tape T loaded with electronic components D at a predetermined pitch is mounted on the tape cassette 13 in a state of being wound around a tape reel 16, and the electronic components D are carriers that are fed from the tape reel 16. It is sucked from the tape T by the suction nozzle 9 as needed.
[0014]
The slide base 12 includes an upper base block 22 and a lower slide block 23 that are positioned and fixed via left and right joining members 21a and 21b. The tape cassette 13 is mounted on the upper surface of the base block 22, and a pair of left and right linear guide nuts 24 in FIG. 3 are provided on the lower surface of the slide block 23. The base block 22 is integrally formed with a horizontal portion 26 and an inclined portion 27, and the inclined portion 27 is disposed at a position where the tape reel 16 has escaped with respect to the tape cassette 13 attached to the horizontal portion 27.
[0015]
The slide block 23 has an upper horizontal portion 29, a vertical portion 30, and a lower horizontal portion 31 that are integrally formed in a crank shape in cross section, and a rib portion 32 is appropriately formed on the outer side from the vertical portion 30 to the lower horizontal portion 31. Has been. The upper horizontal portion 29 supports the horizontal portion 26 of the base block 22 through one joining member 21a, and the rib portion 32 supports the inclined portion 27 of the base block 22 through the other joining member 21b. Further, three each of the first linear guide nuts 24 (left side in FIG. 3) are fixed to the lower surface of the outer end portion of the upper horizontal portion 29, and the lower surface of the outer end portion of the lower horizontal portion 31 is Three second linear guide nuts 24 (right side in FIG. 3) are fixed.
[0016]
Further, a detection head 36 that constitutes a linear encoder 35 is suspended from a lower surface of the outer end portion of the upper horizontal portion 29 with a scale 34 attached to the machine base 11. An end portion of a cable bear 38 that supplies a control signal and electric power to the linear motor 14 is connected to the upper surface of the outer end portion of the lower horizontal portion 31 via a bracket 37. In addition, the code | symbol 39 in a figure is a photo interrupter, This photo interrupter 39 detects this when each slide base 12 overruns the origin position.
[0017]
The machine base 11 is composed of a machine base body 41 and a vertical block 42, and a first linear guide rail 43 a with which the first linear guide nut 24 is engaged is attached to the upper surface of the end of the vertical block 42. A second linear guide rail 43 b with which the second linear guide nut 24 engages is attached to the upper surface of the end of the machine base body 41. An upper magnet base 44 that extends horizontally is attached to the upper surface of the vertical block 42, and a lower magnet base 45 is attached to the upper surface of the machine base body 41 corresponding to the upper magnet base 44.
[0018]
The linear motor 14 includes a pair of upper and lower stators 47 a and 47 b fixed to the machine base 11 and a mover 48 fixed to the slide base 12. Of the pair of upper and lower stators 47 a and 47 b, the upper stator 47 a is fixed downward on the lower surface of the upper magnet base 44, and the lower stator 47 b is fixed upward on the upper surface of the lower magnet base 45. On the other hand, the mover 48 has substantially the same length as the slide base 12 and is fixed to the side surface of the vertical portion 30 of the slide block 23. In this state, the upper surface of the mover 48 faces the upper stator 47a and the lower surface faces the lower stator 47b with a gap (air gap) therebetween. That is, the mover 48 and the upper and lower stators 47a and 47b face each other up and down to constitute the linear motor 14 as a whole.
[0019]
The mover 48 fixed to each slide block 23 is configured by winding an exciting coil around a yoke (not shown), while the upper and lower stators 47a and 47b are each mounted on a machine base (upper and lower) as shown in FIG. A large number of magnets 49 are arranged in the longitudinal direction of each magnet base 44, 45) 11. In this case, a large number of magnets 49 are arranged at equal intervals with a minute gap 50 therebetween, and a resin 51 is molded in each gap 50. That is, the gaps 50 of the many magnets 49 are molded with the resin 51 so that the surfaces of the upper and lower stators 47a and 47b are flush with each other.
[0020]
Next, the open scale type scale 34 and the detection head 36 will be described with reference to FIGS. On the vertical block 42 which is a part of the machine base 11, a long scale 34 is attached in the moving direction of the slide block 23. That is, the scale 34 extends in the moving direction of the slide base 12 that is a component supply table. The detection head 36 fixed to the upper horizontal portion 29 moves while facing the scale 34 as the slide block 23 moves. As shown in FIG. 6, a mark detection sensor 53 and a scale detection sensor 54 are fixed to the detection head 36 side by side in the vertical direction perpendicular to the moving direction of the block 23.
[0021]
The scale 34 is provided with position detection scales 55 at fine intervals in the longitudinal direction of the scale 34 at positions where the scale detection sensor 54 faces. Further, a plurality of position detection marks 56 are provided in the longitudinal direction at a position larger than the interval of the scales 55 at the position where the upper sensor 53 of the scale 34 faces. In FIG. 6, the mark 56 is displayed in black and white, but this is for easy understanding of the display and is actually a mark having the same structure. The sensors 53 and 54 are optical sensors that emit light from an LED or the like and receive reflected light by a light receiving element to detect the mark 56 or the scale 55. The scale 55 is finely attached and position detection is possible in units of microns. Further, the position of the position detection mark 56 can be detected with the same accuracy.
[0022]
As shown in FIG. 6, the arrangement intervals of the position detection marks 56 are the same as the intervals of the black marks 56, but the white marks 56 between them are adjacent little by little depending on their positions. The intervals between the matching marks 56 are different. That is, in the block labeled 1 on the left side of FIG. 6, the adjacent interval is different from A / 2 + B and A / 2−B, and in the adjacent block 2 the adjacent interval is A / 2 + 2B. A / 2-2B. As described above, all adjacent intervals of the mark 56 are different, and by grasping this interval, the position of the slide block 23 on the machine base 11 corresponding to the detected mark 56 can be grasped. it can.
[0023]
Next, based on the control block diagram of the electronic component mounting apparatus 1 of FIG. Reference numeral 60 denotes a CPU as a control unit that performs overall control of the electronic component mounting apparatus 1. The CPU 60 is connected to a RAM (Random Access Memory) 63 and a ROM (Read Only Memory) via a bus line 61. 62 is connected. Based on the data stored in the RAM 63, the CPU 60 controls the operation related to the component mounting operation of the electronic component mounting apparatus 1 according to the program stored in the ROM 62. The RAM 63 stores mounting data related to component mounting. For each mounting order (step number), the X direction (indicated by X), the Y direction (indicated by Y), and the angle in the printed circuit board. Information (indicated by Z), arrangement number information of the electronic component supply device 3, and the like are stored. The RAM 63 stores component arrangement data, which corresponds to the arrangement number of each electronic component supply device 3 and the type (component ID) of each electronic component and the arrangement coordinates of the electronic component supply device 3. Etc. are stored.
[0024]
The RAM 63 incorporates a position count memory 64 as a table position storage means for storing the current position of the slide block 23, that is, the slide base 12, and is a scale connected via the bus line 61 and the interface 65. The current position is constantly updated and stored according to the number of scales detected by the detection sensor 54.
[0025]
The RAM 63 stores the interval between adjacent position detection marks 56 together with the absolute position of the corresponding position detection mark 56 on the machine base 11. For example, the interval between the marks 56 on the same direction side is stored corresponding to the absolute position of the mark 56.
[0026]
The RAM 63 stores a distance C from the machine reference to the nearest specific position detection mark 56 as shown in FIG. 6 and is used for correction at the time of positioning the slide base 12 as a machine-specific offset value. It is done. The machine reference is a position serving as a reference for positioning the slide base 12 in the design of the apparatus.
[0027]
The mark detection sensor 53 is also connected to the CPU 60 via the interface 66 and the bus line 61. Further, the CPU 60 controls the driving of the linear motor 14 via the interface 67 and the driving circuit 68.
[0028]
Reference numeral 70 denotes an oil supply operation switch operated by an operator, which is operated when supplying oil to the three linear guide nuts 24 provided on the slide block 23 below each slide base 12. The oil supply operation switch 70 is an interface 71. And connected to the CPU 60 via the bus line 61. Reference numeral 72 denotes a refueling work completion switch which is operated when a refueling operation to each linear guide nut 24 is completed by an operator. The refueling work completion switch 72 is connected to the CPU 60 via the interface 73 and the bus line 61. .
[0029]
Reference numeral 74 denotes which linear guide nut 24 to which the oil supply operation should be performed after each linear guide nut 24 is moved to a predetermined oil supply position based on the operation of the oil supply operation completion switch 72. The monitor 74 is a display device for displaying. The monitor 74 is connected to the CPU 60 via the interface 75 and the bus line 61.
[0030]
Further, as shown in FIG. 8, the refueling position where the operator refuels is a total of one place on each side of the front mounting system 4 of the electronic component mounting apparatus 1 and one place on the center in the longitudinal direction on the rear side. There are three places.
[0031]
Hereinafter, the oiling operation by the operator will be described with reference to the flowchart of FIG. 9 and the table indicating which oil supply position and which linear guide nut 24 of which slide base 12 is supplied for each oil supply sequence in FIG. The data shown in this table may be stored in the RAM 63 and controlled by the CPU 60 in accordance with a program stored in the ROM 62, or a program including this data may be stored in the ROM 62 and controlled by the CPU 60. It may be.
[0032]
First, when the operator operates a drive power supply switch (not shown) to turn on the drive power to the electronic component mounting apparatus 1 and then operates the oil supply operation switch 70, the CPU 60 drives the linear motor 14 to perform the first operation. By moving the first linear guide nut 24 along the linear guide rail 43a and moving the second linear guide nut 24 along the second linear guide rail 43b, each slide base 12 is moved to the origin position. . That is, as shown in FIG. 8, the two left slide bases 12 move to the left corner, and the two right slide bases 12 move to the right corner. Each origin position sensor is provided at each origin position, and when these detection sensors detect, the CPU 60 stops the driving of the linear motor 14.
[0033]
Next, when each slide base 12 moves to the origin position as described above, the CPU 60 further moves the predetermined slide base 12 to a predetermined oil supply position, and disconnects the drive power supply after the movement is completed.
[0034]
That is, the first refueling sequence 1 is the refueling position No. 1 shown in FIG. The leftmost 2-3 of the first linear guide nut 24 of the second slide base 12 from the right is moved to the position 1, and the drive power is turned off after the movement is completed. The refueling preparation completion display is displayed (see FIG. 11). Specifically, it is displayed on the monitor 74 which refueling position (the position of the refueling position No. 1) should be refueled, so that the operator can avoid mistakes in the refueling work position. Further, which of the linear guide nuts 24 to be refueled (2-3) is displayed on the monitor 74 (black portion in FIG. 11). Thereby, the operator can understand where the refueling work position is and which linear guide nut 24 is refueled, can safely refuel, and can avoid mistakes in the refueling location. The monitor 74 may display on the refueling preparation completion display screen that the drive power supply has been cut off or on a screen different from the refueling preparation completion display screen that the drive power supply has been cut off.
[0035]
Then, after the operator refuels manually, when the refueling work completion switch 72 is operated, all the refueling locations are not completed, so the CPU 60 turns on the drive power, and the next refueling sequence 2 is refueling. Position No. The middle 2-2 of the first linear guide nut 24 of the second slide base 12 from the right is moved to the position 1 and the drive power supply is cut off after the movement is completed. The monitor 74 displays a refueling preparation completion display (black display 2-2 in FIG. 11). In the same manner, the refueling operation is sequentially performed by the worker, and when all the refueling portions are completed, all of the refueling operations are completed.
[0036]
That is, the linear guide nuts 24 of the respective slide bases 12 are sequentially refueled in the order according to the table shown in FIG.
[0037]
Although the embodiments of the present invention have been described above, various alternatives, modifications, or 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 alternatives described above without departing from the spirit of the present invention. It includes examples, modifications or variations.
[0038]
【The invention's effect】
As described above, according to the present invention, it is possible to safely supply oil to each linear guide nut of each component supply table, and it is possible to avoid an oil supply error.
[Brief description of the drawings]
FIG. 1 is a side view of an electronic component mounting apparatus.
FIG. 2 is an external perspective view of an electronic component supply device constituting the electronic component mounting device.
FIG. 3 is an enlarged cross-sectional view of the electronic component mounting apparatus.
FIG. 4 is a cross-sectional view around the stator of the electronic component supply apparatus.
FIG. 5 is a front view with a scale of the machine base attached.
FIG. 6 is an enlarged view of a scale.
FIG. 7 is a control block diagram of the electronic component mounting apparatus. FIG. 8 is a schematic plan view of the overall configuration of the electronic component mounting apparatus.
FIG. 9 is a flowchart.
FIG. 10 is a diagram showing a table indicating which linear guide nut of which slide base is supplied at which oil supply position for each oil supply sequence;
FIG. 11 is a diagram showing a screen showing which linear guide nut should be lubricated at which lubrication position;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 3 Electronic component supply apparatus 9 Suction nozzle 11 Machine stand 12 Slide base (component supply table)
14 Linear motor 23 Slide block 24 Linear guide nuts 43a, 44b Linear guide rail 60 CPU
62 ROM
63 RAM
70 Refueling operation switch 72 Refueling work completion switch

Claims (5)

  A plurality of parts mounted on any of the above-mentioned supply tables by a plurality of linear guide nuts provided on each part supply table by a drive motor being reciprocated while being guided along a linear guide rail provided on the machine base. In an electronic component mounting apparatus in which one of the supply units faces a component extractor and an electronic component extracted by the component extractor is mounted on a printed circuit board, a plurality of linear guide nuts provided on each of the component supply tables are provided. A refueling operation switch operated by a worker to refuel, a refueling operation completion switch operated by a worker when a refueling operation to a plurality of linear guide nuts of each component supply table is completed, and the refueling operation After each component supply table is returned to the home position by operating the switch, the lubrication work completion step is performed according to a predetermined order. An electronic component mounting apparatus characterized said that each linear guide nut of each of the component feeding tables are provided a control device for controlling the drive motor to move in a predetermined fueling position for each operation of the pitch.   The control device controls to turn off the drive power of the drive motor after completion of movement of each linear guide nut of each component supply table to a predetermined oil supply position based on operation of the oil supply operation completion switch. The electronic component mounting apparatus according to claim 1, wherein the electronic component mounting apparatus is an electronic component mounting apparatus.   Provided with a display device for displaying which linear guide nut to be lubricated after each linear guide nut of each component supply table based on the operation of the lubrication work completion switch is moved to a predetermined lubrication position The electronic component mounting apparatus according to claim 1, wherein:   A display device is provided for displaying at which oiling position the oiling operation should be performed after each linear guide nut of each of the component supply tables based on the operation of the oiling operation completion switch has moved to a predetermined oiling position. The electronic component mounting apparatus according to claim 1. After each linear guide nut of each of the component supply tables based on the operation of the oil supply operation completion switch has moved to a predetermined oil supply position, the oil supply operation should be performed and the linear guide nut to be supplied with the oil The electronic component mounting apparatus according to claim 1, further comprising a display device that displays which one is displayed.

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