KR19990017025A - Tray feeder tray designation method and robot movement method and tray supply method using the machine generated data - Google Patents

Abstract

A tray designation method of a tray feeder for a mounter and a robot moving method and a tray supplying method of a mounter using data generated by the mounter are for solving a frequently sold out part problem in a tray feeder. The tray designation method of the tray feeder registers a plurality of parts information registered in the tray lane designated by the mounting program in at least one other tray lane which is not designated (S1), and registers at least one other tray lane which is not designated. The auxiliary data designated by the auxiliary lane of the designated tray lane is generated (S2, S3, S4). This auxiliary data is referred to when the parts of the tray lane designated in the program are sold out in the process of supplying the robot or tray for component adsorption and moves the robot to the component adsorption position of the other tray designated as the auxiliary lane and continuously moves the tray. Make it available. As such, by continuously supplying the same parts to a plurality of trays, it is possible to increase work efficiency of the mounter and to greatly improve productivity.

Description

Tray feeder tray designation method and robot movement method and tray supply method using the machine generated data

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray designation method of a tray feeder for a mounter, a robot moving method and a tray supply method of a mounter using data generated by the mounter, and in particular, mounting data for controlling the mounting operation of the mounter. It is for generating auxiliary data for continuously supplying the same parts to a plurality of trays in a mounting program to be constructed, and using the auxiliary data to control the component adsorption operation and tray supply operation in the mounting machine.

As is well known, the mounting machine is a robot system that automatically mounts a variety of circuit components on circuit boards of various electronic devices, and is usually equipped with a head (2) for picking up parts in a work area (4) including a circuit board (3) area. An XY robot (1) for moving parts, a tray feeder (5) for supplying parts, a tape and stick feeders (6, 7, and 8), a vision inspector (9) for monitoring the mounting state of parts, and the like. It consists of the system control part 10 which controls each part of a system.

In the above parts supply means, the tray feeder 5 is arranged to supply evenly aligned release parts that are difficult to supply to the tape and stick feeders 6, 7, and 8, which require more careful attention or other kinds of parts supply means. Is the device used for. The general tray feeder is configured to discharge a magazine 11, a plurality of pallets 12 mounted in the magazine 11, and selected pallets 12 into the work area 4 of the mounter, as shown in FIG. 2. It consists of the tray discharge part 13 for making it. Here, the magazine 11 may be moved up and down in the vertical direction, which is the direction in which the pallet 12 is stacked by a lifting mechanism not shown in the case 14. The tray discharge portion 13 has a clamp mechanism 15 capable of holding the pallet 12 in position and moving in the front-rear direction. In addition, the pallet 12 is fixedly mounted with a tray 16 in which the parts 17 are arranged in a matrix form as shown in FIG. 3.

The mounting operation of the mounter system as described above is controlled by a predetermined mounting program provided by the system controller 10. The mounting program provides several interactive screens that allow the user to enter mounting conditions. 4A is a program creation screen 18 of a mounting program. Here, the rectangular coordinate positions (X, Y) on the circuit board (3) described above and the rotation angles (T; theta) at each coordinate are input for the components to be mounted in each step according to the component mounting sequence. The lane which designates the supply means of a component is designed. As the parts information registration screen 19 of FIG. 4B, it is a screen for inputting parts information to be supplied in a lane designated in the above-described program creation screen 18. The parts information is libraryed, and the user can select and register a desired part in the parts library screen. When the programming is completed, the mounting data according to the mounting condition input by the user is constructed, and the system control unit 10 controls each unit based on the constructed mounting data.

In the above-described parts supply means, the number of the same parts that can be continuously supplied from the tape and stick feeders 6, 7, and 8 can be supplied to one or more trays 16 of the feeder 5, Is only about 100. However, the problem is that in the conventional mounting program, only one tray lane can be assigned to one type of component, and thus, the stock feeder frequently occurs during the actual mounting operation. When parts out of stock occurs, the mounting operation of the entire mounting machine is stopped until the parts out of stock tray is replaced, thereby greatly reducing productivity. Therefore, in order to improve productivity, a means for efficiently using a tray feeder is required.

Conventionally, as a solution to the problem of the stock out of the tray feeder, there is a method to divide the magazine of the tray feeder into the upper magazine and the lower magazine to use the corresponding parts of the lower magazine when the components of the upper magazine is sold out, When creating a program, there was a method of registering a sublane in a separate sublane creation screen. In the former case, the lower magazine's component tray can be replaced while the upper magazine's components are installed, so continuous work is possible. However, since the worker has to stay around the machine and replace the component tray, there is a problem of waste of manpower. In order to input the replacement signal after displaying the tray which has been sold out and replace it, a separate device (e.g. lamp and switch, etc.) is required for each pallet of the tray feeder. The configuration is very complicated. On the other hand, in the latter case, the mounting program for providing a separate auxiliary lane creation screen is enlarged, so that it is difficult to satisfy the performance specifications of the system. Secondary tray lane designation for parts is limited to 3 to 5, so there is no variability for trays with low component requirements and trays with high component requirements, which does not fundamentally solve the out-of-stock issue for trays with low component requirements.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tray capable of generating data in an existing mounting program for continuously supplying the same parts to a plurality of trays of a tray feeder, in order to solve the problem that productivity is reduced due to frequent out of stocks in a tray feeder. It is to provide a feeder tray designation method.

Another object of the present invention is to provide a robot moving method for adsorption of parts using data generated based on the tray designation method of the tray feeder according to the present invention.

Still another object of the present invention is to provide a tray driving method for supplying parts by using data generated based on the tray designation method of the tray feeder according to the present invention.

1 is a plan layout view showing the outline of the mounter system.

2 is a perspective view of a tray feeder for the mounter system.

3A is a program creation screen of a mounting program shown for explaining a tray designation method of a tray feeder according to the present invention.

Figure 3b is a part information registration screen of the mounting program shown to explain the tray designation method of the tray feeder according to the present invention.

Figure 4 is a flow chart of the parts pick-up operation of the robot by the mounting method robot moving method according to the present invention.

Figure 5 is a flow chart of the tray supply operation of the tray feeder according to the mounting method robot moving method according to the present invention.

＊ Explanation of symbols on main parts of drawing

1: XY robot 2: Parts pickup head

3: circuit board 5: tray feeder

10: system control unit 11: magazine

12: pallet 13: tray discharge unit

16: Tray 18: Installation Program Creation Screen

19: Part information registration screen of mounting program

The first object described above is, according to the present invention, in a method for designating a tray lane in a predetermined mounting program for constructing data for mounting operation control of a mounting machine, wherein the part information registered in the tray lane designated by the mounting program is selected. Registering the plurality of trays equally to at least one other tray lane that is not designated, and generating auxiliary data that designates the at least one other tray lane that is not designated as a secondary lane of the designated tray lane; It is achieved by the tray designation method of the tray feeder, characterized in that the same component is mounted to enable continuous supply.

In order to achieve the second object described above, the present invention provides a method of registering a part of a tray lane specified in a mounting program for a given mounter in the same manner to at least one other tray lane not designated in the mounting program. In the robot movement method using the auxiliary data generated so that the lane is designated as the auxiliary lane, if a part of the tray lane required by the system is sold out, searching whether the auxiliary lane is designated by referring to the auxiliary data; When the lane is searched, the robot mounting method includes moving the robot to the parts suction position on the tray supplied from each lane until the parts of the last auxiliary lane are sold out.

In addition, in order to achieve the third object described above, the present invention is to register the parts of the tray lane specified in the mounting program for a certain mounter to the same at least one other tray lane not specified in the mounting program and the at least one other A tray supply method using auxiliary data generated to designate a tray lane as an auxiliary lane, when the part of the tray lane required by the system is sold out, searching whether the auxiliary lane is designated by referring to the auxiliary data described above; When the auxiliary lane is found, the tray supply method includes supplying each tray to the parts supply position sequentially until the parts of the last auxiliary lane are sold out.

According to the present invention described above, since auxiliary data is generated by using a tray lane that is not designated by the existing mounting program as an auxiliary lane, the existing tray is changed without changing the existing mounting program or system specifications or the structure of the tray feeder. It is possible to control each part of the system to continuously feed the same parts to a plurality of trays in the feeder and to suck and mount the parts therefrom. Therefore, the present invention can easily solve the problem of parts sold out in the tray feeder, the preferred embodiment will be described in detail with reference to the accompanying drawings as follows.

Hereinafter, a tray designation method of the tray feeder according to the present invention will be described. The present invention first creates a mounting program for the mounter as shown in Fig. 4 (step S1). When the mounting program is completed, the created mounting program is searched (step S2), and then the part information registration data of the mounting program is searched (step S3), and the auxiliary lane data of the trader is generated (step S4). In the above-described mounting program creation step (S1) in the present invention, the non-designated lane number on the parts information registration screen of the mounting program in consideration of the required quantity of parts supplied from the lane designated on the mounting program creation screen provided by the system control unit. It is to register a plurality of the same information as the parts registered in the lane number designated at. Specifically, for example, from the 61th lane to the 100th lane, that is, 40 lanes are allocated as the lanes of the tray feeder, among the 100 lanes that can be designated in the mounting program for the mounter, as shown in FIG. 3A. Once the program 18 has been written, a total of nine parts are mounted on a circuit board, of which the lane feeder lanes 81 and 89 are designated, and the parts of lane 81 are more than three parts of lane 89. You can see that it is consumed twice as much. Therefore, in the present invention, in consideration of the parts demand quantity of lane 81, lane 81 is assigned to another lane number (82, 83, 86, 88) which is not designated as shown in the parts information registration screen 19 of FIG. The registered part (QFP_100pin) is duplicated and registered. Of course, this program creation step is by the user's editing can be done in the same way. However, since the duplicated lane numbers 82, 83, 86, and 88 are not specified in the mounting program creation screen 18, they are not referred to at all during the mounting operation. On the other hand, in the last step, the present invention generates auxiliary lane data designating the duplicate lane numbers as the auxiliary lane of lane 81 and refer to them in the mounting operation. In order to generate the auxiliary lane data, the present invention runs a separate search software to search for a completed mounting program and its part information registration data. The separate search software used here is programmable with a simple algorithm, and the detailed program structure description is omitted.

Mounting program search step (S2) is a process for counting the type of tray feeder parts. That is, if the tray lanes (81, 81, 89, 81) are found out of the designated lanes on the program creation screen 18 of 3a, and duplicate lanes are removed there (only lanes 81, 89 remain) You can see the kind of parts coming from the tray feeder.

Next, in the part information registration data retrieval step (S3), the lane numbers corresponding to the lanes 81 and 89 of the tray feeder retrieved in the previous step and the corresponding lane numbers on the parts information registration screen 19 of FIG. 3B and the parts information registered therein After confirming, it is searched whether the same part information is registered in another lane, that is, the same lane is not designated in the mounting program creation screen 18.

In the previous search step, if it is found that the same part information is registered in another lane that does not have the same part information as the part of the lane specified on the mounting program creation screen, the other lane that is not designated is designated as the auxiliary lane of the designated lane, and the desired auxiliary lane is desired. Create and store data. That is, in the part information registration screen 19 of FIG. 3B, lanes 82, 83, 86, and 88 in which the same part information is registered as the part (QFP_100pin) of lane 81 are designated as secondary lanes of lane 81. will be.

When the auxiliary lane data generated in this way is referred to during the mounting operation, the parts of lanes 82, 83, 86, and 88 designated as the auxiliary lanes will be used in sequence without stopping the mounting operation even when the 81 lane is out of stock. Therefore, according to the present invention, it is possible to continuously supply a large quantity of the same parts by keeping pace with other supply means such as tape and stick feeders, thereby preventing the mounting operation of the mounter from being frequently stopped due to out of stock. It can be.

The auxiliary data according to the present invention described above may be used to control robot movement and tray supply for component adsorption and mounting during mounting operation.

First, the operation of controlling the robot movement for adsorption and mounting parts is as shown in FIG. When the system requires the lane of the tray feeder, first, it is checked whether the tray feeder lane specified in the mounting program is out of stock (step S6), and if a part remains, the robot is moved to the parts adsorption position of the lane (step S7). At this time, the matrix position on the tray where the XY robot moves is defined as follows.

X position = X ₁ + Xp * Xn

Y position = Y ₁ + Yp * Yn

Where X ₁ and Y ₁ are the first component positions on the Cartesian coordinate, respectively, Xp and Yp are the spacings between the components in the direction of the temporary coordinate axis, and Xn and Yn are the number of components to be adsorbed at present.

If the out-of-stock parts of the tray feeder lane specified in the mounting program are checked, it is checked whether the spare lane is designated in the out-of-stock lane (step S8), and if there is no auxiliary lane, an error is generated (step S9). The parts sold out of the second auxiliary lane are inspected (step S10). If the parts of the first auxiliary lane remain, the robot is moved to the part suction position of the auxiliary lane (step S11), and if the part sold out is checked, it is checked whether the current auxiliary lane is the last auxiliary lane (step S12). If it is the last auxiliary lane in the auxiliary lane inspection step, an error is generated (step S13), or the next auxiliary lane is checked for out of stock (step S14). If a part remains in the next auxiliary lane, the robot is moved to the part suction position of the auxiliary lane (step S15), and if the part sold out is checked, the step (S13) of checking whether or not the last auxiliary lane is applied is repeated.

Next, a method of controlling a tray supply operation is to supply a component tray of a corresponding lane to a component adsorption position where the robot described above moves. If the system requests the lane of the tray feeder as shown in FIG. 5, first, it is checked whether the tray feeder lane specified in the mounting program is out of stock (step S17). If parts of the designated lane remain, the tray of the lane is supplied (step S18). For reference, the supply operation of the tray is to raise or lower the magazine 11 in FIG. 2 so that the pallet 12 loaded with the tray 16 containing the parts of the lanes comes to the height of the tray discharge unit 13, The clamp mechanism 15 in the tray discharge part 13 is operated to discharge the pallet 12 of the lane from the magazine 11 to the tray discharge part 13.

In FIG. 5 again, when a part stock of the tray feeder lane specified in the mounting program is checked, it is checked whether a sub lane is designated in the part sold out lane (step S19), and if there is no auxiliary lane, the tray of the part sold out before is replaced. Wait until the step (step S20), and if there is a secondary lane is inspected the parts sold out of the first auxiliary lane (step S21). If the parts of the first auxiliary lane remain, the tray of the auxiliary lane is supplied (step S22), and if a part sold out is checked, it is checked whether the current auxiliary lane is the last auxiliary lane (step S23). If it is the last auxiliary lane in the auxiliary lane inspection step, it is similarly replaced until the previous sub-solded sub tray is replaced (step S24), or the next sub-lane is checked for the absence of parts (step S25). If parts remain in the next auxiliary lane, the tray of the auxiliary lane is supplied (step S26), and if the part sold out is checked, the step (S24) of checking whether the previous auxiliary lane is applied is repeated.

As described above, by using a plurality of trays of the tray feeder as auxiliary lanes, a tray component having a large quantity required can be continuously supplied and mounted to the plurality of trays.

According to the present invention, the same parts can be continuously supplied to a plurality of trays as many as the maximum number of tray feeders (pillar stacking). This can minimize the number of hours the operator has to stay around the machine and replace the parts tray, ie the downtime of the machine. Therefore, the present invention is effective in increasing the work efficiency of the mounter and greatly improving productivity by appropriately utilizing the lane of the tray feeder according to the required amount of parts in harmony with the tape and stick feeders described above. In particular, according to the present invention, the effect of using multiple tray feeders with one tray feeder can be achieved.

In addition, the method of the present invention generates auxiliary data by utilizing a tray lane that is not designated in the existing mounting program as an auxiliary lane, and references the generated auxiliary data in a mounting operation to continuously process the same parts in a plurality of trays in the tray feeder. It is possible to control each part of the system to supply and suck parts from it, so it is not necessary to change the existing mounting program or system specification or to change the structure of the tray feeder. It is possible.

Claims (4)

A method of designating a tray lane in a predetermined mounting program for data construction for mounting operation control of a mounter, Registering the parts information registered in the tray lane designated by the mounting program in at least one other tray lane which is not designated; Generating an auxiliary data designating at least one other non-designated tray lane as an auxiliary lane of the designated tray lane, A tray designation method for a tracker, characterized in that the same part can be continuously supplied to a plurality of trays. The method according to claim 1, The auxiliary data retrieves the type of the tray lane among the lanes specified in the mounting program, and the same parts as those registered in the tray lane specified on the parts information registration screen of the mounting program are not designated in the mounting program. A tray designation method for a tray feeder, characterized in that a search is made whether another lane is registered, and the unspecified lane is designated as a secondary lane of a designated lane. Registered parts of the tray lane designated in the mounting program for a given mounter are identically registered to at least one other tray lane not designated in the mounting program, and the auxiliary data generated to designate the at least one other tray lane as the auxiliary lane is used. In the robot movement method, If a part of the tray lane required by the system is sold out, checking whether the auxiliary lane is designated by referring to the auxiliary data; And if the auxiliary lane is inspected, moving the robot to the parts adsorption position on the tray supplied from each lane until the parts of the last auxiliary lane are sold out. Registered parts of the tray lane designated in the mounting program for a given mounter are identically registered to at least one other tray lane not designated in the mounting program, and the auxiliary data generated to designate the at least one other tray lane as the auxiliary lane is used. In the tray supply method, If a part of the tray lane required by the system is sold out, checking whether the auxiliary lane is designated by referring to the auxiliary data; And if the auxiliary lanes are inspected, supplying each tray to the parts supply position sequentially until the parts of the last auxiliary lane are sold out.