JPH1187996A - Method of setting arrangement of tool for work machine handing parts, and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set the arrangement of the tool of a work machine handling parts efficiently and condition close to an optimum solution stably in whatever a case. SOLUTION: The parts required for the next work are portioned out preferentially to the work machine, where the arranged tool lies as regards the ones corresponding to the arranged tool arranged in each work machine in a previous work. For the arrangement of the tools for handling the parts portioned out to each work machine, the priority is set as it is to the arrangement in the previous work as regards the arranged tool corresponding to the parts being portioned out preferentially, and for the arrangement of the tools to be portioned out anew, corresponding to the parts portioned out anew to each work machine, it is set in such arrangement that they do not interfere with one another, considering the size and the contiguous positional relation of the arranged tools or the arrangement-set tools whose arrangement is set already, etc., prior to dealing with the next work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to selecting and using a plurality of tools arranged in accordance with the type of a part to be worked each time, and using a plurality of tools for handling corresponding parts and performing a predetermined work. The present invention relates to a method and an apparatus for setting and arranging tools when used, and is used, for example, when handling a large number of various electronic components and mounting or mounting them on a circuit board to produce an electronic circuit board.

[0002]

2. Description of the Related Art There are various types of electronic components handled by a working machine for mounting or mounting electronic components on a circuit board, and their shapes, shapes and sizes are variously different. In order to handle or mount these electronic components without errors and mount or mount them with high precision, tools that handle electronic components need to be suitable for the types of electronic components. This type of tool includes a chuck that grips and holds an electronic component from around, a connector that holds the electronic component in a connected state, and a suction nozzle that vacuum-holds and holds the electronic component. Also, if the sizes of electronic components handled by these differ greatly, it is necessary to use tools of the same type but different sizes in order to match the size.

[0003] In a working machine for selecting and using a plurality of different tools arranged, a plurality of kinds of electronic components are mounted in one working machine by replacing the used tool with a necessary one each time during a series of work. It is practically used as a so-called odd-shaped component mounting machine or odd-shaped component mounting machine.
Such a working machine is used in combination with a plurality of working machines to produce a predetermined electronic circuit board by handling more components, and is also used together with a mounting machine of a type that does not change tools.

[0004] In such a production line system using a plurality of working machines, there are many types of allocation of components to each mounting machine, allocation of tools to deformed component mounting machines corresponding to the allocation, and arrangement of the allocated tools. When handling parts in a predetermined order with changing tools, the operation trajectory that handles each tool or part, the difference in operation trajectory, the difference in the part handling time reflected in the difference in the number of parts handled, etc., or the tool This is an important setting factor that causes a difference in the degree of difficulty when handling the parts and greatly affects the productivity and yield rate.

Conventionally, a method as shown in a flow chart shown in FIG. 7 has been applied for setting the allocation of components and tools to each odd-shaped component mounting machine and the arrangement of the allocated tools. To explain this, first, step # 1
In step 1, a plurality of tools necessary for each odd-shaped component mounting machine are initially allocated based on the experience up to that time or according to the component allocation set during the immediately preceding component mounting operation. In the next step # 12, an initial arrangement for component mounting work is determined for each tool assigned to each of the odd-shaped component mounting machines. Thereafter, in step # 13, each electronic component to be mounted is distributed to each mounting machine in the production line system. In the case of the odd-shaped component mounting machine, each component is initially sorted first, and the electronic component corresponding to the initially arranged tool is sorted.

In the following step # 14, a component mounting time (mounting time per point × number of mounting points) in each component mounting machine is calculated based on the above setting conditions, and the mounting time in each component mounting machine is calculated. Determine mutual balance. For example, if one component placement machine has a short component placement time but another component placement machine has a long component placement time, the component placement machine with a short placement time will have a long wait time. Occurs. Therefore, it is determined whether or not the maximum difference between the component mounting times of the component mounting machines is within a predetermined range. If it is within the predetermined range, the set current tool arrangement position is shifted to the component mounting work as a final result. If it is not within the predetermined range, the allocation and arrangement of the tools are corrected in step # 15, the above-mentioned determination is performed, and the same operation is repeated until the result falls within the predetermined range. When the number of repetitions exceeds a predetermined number, the setting operation is completed, and the tool arrangement is finally determined so that the mutual balance of the component mounting times is the best.

[0007]

By the way, when electronic components are mounted on a circuit board in a temporarily fixed state using cream solder or the like and placed, and then the solder is melted and solidified in a reflow furnace to be mounted. In mounting various electronic components in a temporarily fixed state while transporting a circuit board, larger electronic components are more likely to move due to inertia. Therefore, from the placement machine with the small handling parts to the placement machine with the large handling parts, it is arranged in order from the upstream side to the downstream side of the production line system, and the transport speed is gradually reduced, so that it is below a certain level corresponding to the size of the parts. In general, care is taken to ensure that only inertia occurs.

[0008] In consideration of the conditions for distributing components in addition to the conditions for distributing components as described above, the conditions for associating components to be allocated to tools that are first allocated to the odd-shaped component mounting machine and arranged are considered. Becomes more complicated.

[0009] In addition, in this complicated component allocation setting operation, if the components are allocated according to a fixed procedure so that the difference in mounting time between the mounting machines is minimized, the optimum allocation based on only the components can be achieved. Although it can be done, the initial distribution and setting of tools for each odd-shaped component mounting machine, which is the basic condition, is not optimal according to certain rules, and it is necessary to correct the repetition as described above. The necessity remains the same, and each time the tool distribution is corrected, the part distribution also needs to be corrected. In the end, the operation of setting and allocating parts and tools is complicated, empirical, or trial and error for each worker, causing much time to be spent on final decisions. .

In recent years, the use of electronic circuit boards has been widely applied to a wide variety of products in a small number of fields, and the frequency of work changes accompanying the change in the type of electronic circuit boards to be produced has been increasing. It is particularly desired to optimize the distribution and arrangement of the data and to simplify and stabilize the setting operation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tool for a working machine for handling parts, which can stably and efficiently set a distribution and an arrangement close to an optimum solution of a tool necessary for the next work to be replaced. An object of the present invention is to provide an arrangement setting method and an apparatus therefor.

[0012]

In order to achieve the above object, a tool placement setting method for a working machine for handling parts according to the present invention is to provide a method for setting a plurality of tools arranged on a part to be worked each time. When using multiple working machines that handle the corresponding parts and perform the specified work by selecting and using them according to the type, the parts necessary for the next work to be retargeted are placed on each working machine at the time of the previous work For tools that correspond to the assigned tools that are already assigned, the tools assigned to the assigned tools are assigned priority, and the tools that handle the components assigned to each tool are assigned to the assigned components with priority. For tools that have already been placed, prioritize the layout at the time of the previous operation as it is, and for tools that can be newly allocated in accordance with the newly allocated parts of each work machine, Of a tool or the placed configuration tools that have already been arranged set, etc. size and adjoining positional relationship, and sets the arrangement comprising a positional relationship in which they do not interfere with each other.

As described above, the parts necessary for the next work by changing the object are assigned to the work tools having the already arranged tools corresponding to the already arranged tools arranged in each work machine at the time of the immediately preceding work. By prioritizing the allocation, the number of replacements required for changing the work of the existing tools is minimized, so the setup time is shortened by that much, and the allocation of tools that handle the parts allocated to each work machine has priority. For the existing tools that correspond to the parts that have been allocated, the prior layout of the previous work is set as it is, so that the rearrangement for the work change of the existing tools is minimized. The time is shortened, and the number of tools that are newly allocated and set according to the newly allocated parts of each work machine are small, excluding the existing tools. Conditions can be easily satisfied, and simple predetermined conditions such as setting such that they do not interfere with each other based on the size and adjacent positional relationship with the already placed tool or already placed setting tool, etc. By taking into account the above-mentioned allocation of the new parts and the allocation and arrangement of the tools based on the new parts, it is possible to prevent the tools from interfering with each other. The distribution and the distribution and arrangement of the tools based on the distribution are obtained.

Each setting operation is a result according to a certain rule, so that it is not based on human experience or trial and error as in the prior art. The optimal solution or a setting close to it can be made efficiently with progress.

Here, when allocating parts required for the next operation, parts to be newly allocated without corresponding to the existing tools at the time of the immediately preceding operation take a time required for a predetermined operation in each work machine. Distributing to each work machine so that the difference between them is minimized, each work machine can be configured with only such a setting for a small number of newly required parts and tools while following the work results of the previous work. The work time can be mutually balanced so that the difference in the work time in the work can be minimized. Further, in order to sequentially set the arrangement of the tools to be newly allocated in accordance with the allocation of the new parts to the arranged tool or the adjacent arranged setting tool, the sum of the radii of the circumscribed circles of both the adjacent tools is set. However, when it is determined that the two tools interfere with each other when the pitch between the adjacent tools is larger than the pitch between the adjacent tools, and the next adjacent position is set to the next vacant position, Mutual interference due to the difference in the size of the tools to be rearranged can also be avoided by a procedure according to a certain rule, so that the setting operation does not become particularly complicated and time is not prolonged.

According to the present invention, there is provided a tool placement determining apparatus for a working machine that handles parts, which stores information on a type of a part handled by each working machine and information on a type and an arrangement position of a tool arranged to handle the part. First input means for inputting, storage means for storing the input information and updating the stored content when new information is input, information on the type of parts to be handled in the next operation, and handling the information The second input means for inputting information on the type of tool is compared with the information on the type of the part handled at the time of the immediately preceding operation stored in the storage means and the information on the type and arrangement of the tool handling the same. In accordance with the procedure of the method according to claim 1 or 2, an operator who allocates parts necessary for the next work machine and allocates and arranges tools for handling the allocated parts. Characterized by comprising and.

By the timely operation of these means,
From the input part information and tool information necessary for the next work and the part information and tool information stored in the storage means for the previous work, This can be achieved automatically, quickly and accurately by the operation of the arithmetic means according to a predetermined rule.

When the distribution information and the arrangement information of the parts and tools set for each work machine from the arithmetic means are displayed on the display means, the operator can easily work without being confused while referring to the information, and is less likely to make mistakes. . The display means may be provided in a host control means for supervising and controlling each work machine, instructing a tool exchange in each work machine, and managing it, or in conjunction with this, or separately, Conveniently, means are provided for each work implement so that they can be used individually for sorting and arranging the parts and tools on the work implement handling the respective parts.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A typical embodiment of the present invention, together with an embodiment, will be described below with reference to FIGS.

In this embodiment, as a plurality of working machines which handle corresponding parts while selecting and using tools and perform predetermined work, the electronic parts 2 as shown in FIG. This is an example of a deformed component mounting machine that produces an electronic circuit board. An electronic circuit board is often configured by mounting a large number of electronic components, and a single work machine is generally insufficient. Therefore, the circuit board 1 is sequentially conveyed to a plurality of working machines, and the electronic components 2 are mounted on each working machine, and the required number and types of electronic components 2 are provided.
And a production line system is configured to obtain a predetermined electronic circuit board. There are various types of work machines such as a so-called high-speed mounting machine of a type that enables one or a plurality of tools to be mounted at a high speed without replacing one or a plurality of tools. As an example, FIG. 1 shows that high-speed placement machines A and B and odd-shaped component placement machines C and D that handle various large and various electronic components while replacing tools 20 are sequentially arranged on a production line. A predetermined circuit board 1 is produced with A being the upstream side and odd-shaped component mounting machine D being the downstream side.

The odd-shaped component mounting machines C and D perform mounting by selectively handling a plurality of types of so-called odd-shaped components that cannot be handled by the same tool, due to a large difference in the shape and size of the electronic components 2. As shown in FIG. 1 to NO. 5
A plurality of tool arrangement units 18 are provided in a part shown in FIG. 2 so that a plurality of types of tools 20 to be replaced can be arranged in advance.

The electronic component 2 has various forms, shapes and sizes, and there are various supply forms according to each.
As shown in FIG. 2, the electronic component 2 is wound on a reel 3 as a taping component, and is mounted on a component supply cassette 4,
A component corresponding to the type of the electronic component 2 assigned to each work machine is provided in the component supply unit 5. As other supply forms, there are a supply method using a bulk component supply cassette and a supply method in which electronic components are stored in a pallet and supplied in various forms, and are selectively used. It is also possible to use a combination of these different supply forms for one working machine, and there are various types of electronic components 2 handled by one working machine.

Each of the deformed component mounting machines C and D shown in FIG. 2 has a mounting head 19 supported by an XY moving mechanism 7 that moves in XY2 directions perpendicular to each other when viewed from a plane. 5 and the component mounting position on the circuit board 1. The mounting head 19 sequentially picks up various electronic components 2 supplied from the component supply unit 5 by a tool 20 detachably connected to a tool connection unit 21 on the lower surface thereof, and picks up the electronic components 2 each time. It is mounted at a predetermined position on the circuit board 1. When picking up various electronic components 2, the mounting head 19 initially mounts or replaces the tools 20 corresponding to the next electronic components 2 in the tool placement unit 18 as necessary. The deformed component mounting machine C of the present embodiment,
D has two tool connections 21 on the mounting head 19,
In FIG. 3, two tools 20 are simultaneously mounted with the movement indicated by 〜 in FIG. Mounting head 1
The number of tools 20 to be mounted on 9 may be one, or three or more. The greater the number of simultaneous mountings, the less frequently the tools need to be replaced. However, the mechanism and the control become complicated, so that it may be appropriately selected. The circuit board 1 is received from the loading portion 8a on one end side by the board transfer / positioning mechanism 8, is loaded to the component mounting position indicated by the position of the circuit board 1 in FIG. 2, temporarily positioned, and mounts the necessary electronic components 2 And then unloaded from the unloading section 8b at the other end.

An electronic circuit board to be processed in order to produce an electronic circuit board with high productivity and yield by using the high-speed mounting machine A, the high-speed mounting machine B, the odd-shaped component mounting machine C, the odd-shaped component mounting machine D, and the like. Of various types of electronic components 2 required for each type of tool, and a tool corresponding to the type of electronic component 2 to be handled by the odd-shaped component mounting machines C and D according to the allocation. Is allocated to each of the deformed component mounting machines C and D, and the allocated tools are arranged in the tool arranging unit 18 of each of the deformed component mounting machines C and D.
The distribution of the electronic components 2 and the tools and the arrangement of the tools greatly affect the productivity and the yield of the electronic circuit board 1 as described above. Even if the distribution and arrangement can be set once under the optimum solution or a condition close thereto, if the production type changes, the necessary electronic components 2 and the high-speed mounting machine A, high-speed mounting machine B, odd-shaped component mounting machine C, and odd-shaped mounting machine C The optimum distribution condition to the component mounting machine D also changes. At the same time, the assignment of tools corresponding to the optimally assigned electronic components in the odd-shaped component mounting machines C and D also changes, and it is necessary to rearrange the assigned tools.

Each of the deformed component mounting machines C and D is internally or externally connected to a program file 32 by a control device 31 having various arithmetic functions using a microcomputer as shown in FIG. The operation is controlled in accordance with a control program stored in the above. Control device 3
1 is input from the operation panel 30 or, based on the component information detected by the component sensor of the component supply unit 5 and the tool sensor of the tool placement unit 18 and the tool information, the position of the equipped component supply cassette 6 and the accommodation thereof. It is possible to recognize the type of the electronic component 2 supplied and supplied, the position of the tool placement unit 18 and the type of the tool 20 placed there, and supply the required electronic component 2 in accordance with the control program. Meanwhile, a tool 20 corresponding to the type of the electronic component 2 to be supplied is selected, used, picked up, and automatically mounted on a predetermined position of the positioned circuit board 1. At this time, if the type of the supplied electronic component 2 cannot be handled by the currently mounted tool 20, the other tools 20 arranged in the tool arrangement unit 18
The electronic component 2 is picked up after replacing it with a necessary one, and is mounted on a predetermined position of the circuit board 1.
When a stop signal input from the operation panel 30 or a stop signal generated based on some trouble is input, the component mounting operation is stopped. The above-mentioned component information, tool information, component mounting order, etc. are stored in the storage means 33 which can be read and written as needed while the production type is the same. Rewrite and update. However, the information at that time can be sequentially stored as a history.

On the other hand, each of the high-speed mounting machine A, the high-speed mounting machine B, the odd-shaped component mounting machine C, and the odd-shaped component mounting machine D
It is centrally managed and controlled by a host controller 41 having various arithmetic functions using a microcomputer as shown in FIG. The host control device 41 receives various inputs from the operation panel 42, and receives various information on each of the high-speed placement machine A, the high-speed placement machine B, the odd-shaped component placement machine C, and the odd-shaped component placement machine D. Or an externally connected program file 43
In accordance with the control program stored in the high-speed placement machine A, the high-speed placement machine B, the odd-shaped component placement machine C, and the variously-shaped component placement machine D, various managements and related control are performed. , The management information and the operation information of the odd-shaped component mounting machine C and the odd-shaped component mounting machine D are stored in a readable and writable storage means 44, and when there is a change in the information, the storage means 44 rewrites and updates the stored contents with new information. I do. However, the information at that time can be sequentially stored as a history.

Here, the electronic components 2 to the high-speed mounting machine A, the high-speed mounting machine B, the odd-shaped component mounting machine C, and the odd-shaped component mounting machine D when changing the target from the immediately preceding production type to the current production type. The method of this embodiment for setting the distribution and arrangement of the tools 20 will be described with reference to an example shown in Table 1 below.

[0028]

[Table 1]

Table 1 shows the high-speed mounting machine A, which is shown in the column of the equipment name.
In each of the high-speed mounting machine B, the odd-shaped component mounting machine C, and the odd-shaped component mounting machine D, the column of the component supply unit number is 1 to 9, 1 to
Electronic components 2 assigned to respective component supply sections indicated by numbers 8, 1 to 7, and 1, 2, 101 to 104
(Shown in the column of component names), examples of the types of tools 20 assigned to each of the odd-shaped component mounting machines C and D (shown in the column of used tools), and examples of their arrangement (1 to 1 in the column of tool arrangement) 5 is indicated by the tool arrangement position of No. 5 and the type of the tool 20 corresponding thereto) when the type is changed from the immediately preceding production type to the current production type. Note that the high-speed placement machines A and B do not replace and use a new tool 20 irrespective of the number of tools 20 to be mounted, and sort the electronic components 2 so that replacement is not necessary. Is omitted.

The distribution of the electronic components 2 and the tools 20 to the high-speed mounting machine A, the high-speed mounting machine B, the odd-shaped component mounting machine C, and the odd-shaped component mounting machine D, and the initial setting of the arrangement of the tools 20 are performed in the conventional manner. . The data for the immediately preceding production type shown in Table 1 is assumed to have the production results of the electronic circuit board as the optimal solution by the initial setting. When switching from the previous production type to the current production type, basically, any of the high-speed mounting machine A, the high-speed mounting machine B, the odd-shaped component mounting machine C, and the odd-shaped component mounting machine D, The components corresponding to the electronic components 2 that have been allocated at the time of the immediately preceding production type remain at the allocation positions. 1 for high-speed mounting machine A
Electronic components 2 such as 005C1 and 1608C1-2, components 2125C2-3 for high-speed placement machine B, MINIDI
2, electronic parts 2 such as 3261R1-2, electronic parts such as 3216R3 and S0P8P1 for the odd-shaped component mounting machine C,
This is the electronic component 2 such as the QFP 40P1 for the odd-shaped component mounting machine D, and the necessary replacement of the electronic component 2 in the component supply unit 5 is minimized by the above-described distribution.

However, like the deformed component mounting machines C and D,
A plurality of tools 20 arranged in the tool arrangement unit 18 are selected and used in accordance with the type of the electronic component 2 to be worked each time, and a plurality of working machines which handle the corresponding electronic component 2 and perform a predetermined work are used together. In the case, deformed component mounting machines C and D
In addition, it is necessary to consider the relationship with the tool 20 allocated and arranged at the time of the immediately preceding production type.

In the present embodiment, the electronic components 2 necessary for the next operation to be changed to the current production type are replaced with the existing tools 20 which are arranged in the odd-shaped component mounting machines C and D at the time of the immediately preceding production type. For those that correspond to the
And prioritize work equipment with Tool 2 for handling electronic components 2 distributed to each of the odd-shaped component mounting machines C and D
As for the arrangement of “0”, for the already arranged tools 20 corresponding to the electronic parts 2 which have been preferentially allocated, the arrangement of the immediately preceding production type is set as it is as priority, and each of the odd-shaped component mounting machines C and D is newly allocated. With respect to the tool 20 newly allocated in accordance with the assigned electronic component 2, the already arranged tool 20 or the already arranged setting tool 2 already arranged and set
Based on the size and the adjacent positional relationship with 0, the positions are set to a positional relationship that does not interfere with each other.

As described above, the electronic component 2 necessary for the next work by changing the object is replaced with the electronic component 2 corresponding to the already-arranged tool arranged in each of the odd-shaped component mounting machines C and D at the time of the previous production type. By assigning priority to each of the deformed component mounting machines C and D having the arrangement tool, the number of exchanges required for changing the work of the already arranged tool is minimized, so that the setup time is shortened accordingly.

The arrangement of the tools 20 for handling the electronic components 2 assigned to the odd-shaped component mounting machines C and D is given priority. By giving priority to the time arrangement as it is, the arrangement change for changing the production type of the already arranged tool 20 is minimized, so that the setup time is shortened accordingly.

In addition, the number of tools 20 newly allocated and arranged corresponding to the newly allocated electronic components 2 of each of the odd-shaped component mounting machines C and D is small, excluding the already-arranged tools. The necessary various conditions can be easily satisfied, and the positional relationship with the already-arranged tool 20 or the already-arranged already-arranged setting tool 20 is set so as not to interfere with each other based on the size and the adjacent positional relationship. By taking into account simple predetermined conditions, such as sorting of the new electronic component 2 and the tool 2 based on this,
In distributing and arranging zeros, interference between the tools 20 is prevented.

As a result, in this embodiment, the distribution of the electronic components 2 and the distribution and arrangement of the tools 20 based on the distribution can be obtained, which are closer to the optimum solution than in the past. Is based on the rules of
In any case, the optimum solution or a setting close to it can be efficiently obtained with a predetermined progress without any trial and error.

Here, when allocating the electronic components 2 necessary for the next operation, the electronic components 2 to be newly allocated without corresponding to the already arranged tools 20 of the immediately preceding production type are assigned to the odd-shaped component mounting machines C and D. Is distributed to each of the oddly shaped component mounting machines C and D so that the difference in the time required for the predetermined work in the work is minimized. With only such a setting for the electronic component 2 and the tool 20, it is possible to balance the work time so that the difference in the work time between the odd-shaped component mounting machines C and D is minimized.

Further, in order to sequentially set the arrangement of the tools 20 to be newly allocated in accordance with the allocation of the new electronic components 2 to the arranged tool 20 or the arranged setting tool 20, these two adjacent ones are set. When the sum of the radii of the circumscribed circles of the tools 20 is larger than the pitch between the arrangement positions of the adjacent tools 20, it is determined that the two tools 20 interfere with each other, and the adjacent position is separated by one. If the next empty position is set, mutual interference due to the difference in the size of the tool 20 to be rearranged can also be avoided by a procedure according to a certain rule, which makes the setting operation particularly complicated. There is no delay or time.

The part information and tool information for the immediately preceding production type can be obtained from the storage contents of the storage means 33 of each of the odd-shaped component mounting machines C and D, and the type of the electronic component 2 required for the current production type. The distribution information is input from the operation panel 30 or obtained from information from the component sensor. The information for each of the deformed component mounting machines C and D is transmitted by the host controller 41 to each of the high-speed mounting machine A, the high-speed mounting machine B, the deformed component mounting machine C, and the deformed component mounting machine D.
Can be recognized as a part of the information. Therefore, based on such information, the host control device 41 can automatically calculate the above-described operation according to a predetermined rule to achieve the operation quickly and accurately. Here, the host control device 41 constitutes a calculating means in the present invention. However, the arithmetic means of the present invention may be of any type as long as it exhibits necessary functions.

The set distribution information of the electronic components 2 and the distribution and arrangement information of the tools are transmitted to the operation panel 44 connected to the host control device 41 of the own device or to the control devices 31 of the deformed component mounting machines C and D. Operation panel 3
0, and the distribution information of the electronic components 2 and the distribution and arrangement information of the tool 20 for the current product type are given to the operator, so that those operations can be performed smoothly.

Hereinafter, a more specific description will be given based on the flowchart shown in FIG. 6. First, in step # 1, an electronic circuit board of a type different from the immediately preceding product type is added to the production line system of FIG. An operation is performed to sort the electronic components 2 required for the current production type produced from.

As shown in Table 1, the same electronic component 2 as the electronic component 2 mounted at the time of the previous production type is distributed to the same working machine that was allocated at the time of the previous production type. In addition, the electronic component 2 which is unique to the current production type is corrected so that the mounting time of each of the high-speed mounting machine A, the high-speed mounting machine B, the odd-shaped component mounting machine C, and the odd-shaped component mounting machine D is equalized. While sorting.

For example, the electronic component 2 that was mounted also in the previous production type, such as the component name 1005C1 of the component supply unit number 1 relating to the high-speed mounting machine A, has the same high-speed mounting machine as that in the previous production type. A is assigned to the same part supply number 1 of A.
Component name 1005R of component supply unit number 2 of high-speed placement machine A
Reference numeral 1 denotes an electronic component 2 to be mounted only in the current production type. Regarding this, the mounting time after distributing the common component is assigned preferentially to the high-speed mounting machine A with a shorter mounting time, and each high-speed mounting machine A, The placement times of the placement machine B, the deformed part placement machine C, and the deformed part placement machine D in the respective working machines are distributed so as to be the most equal among the given constraints. In the case of the deformed component mounting machines C and D, not only the electronic component 2 but also the tool 20 corresponding to the allocation of the electronic component 2,
In addition, it is necessary to determine the arrangement of the sorted tools 20.

For example, in the case of each of the deformed component mounting machines C of the current production type shown in Table 1, a case where a total of four kinds of tools 20 for the small chuck, the middle of the chuck, the inside of the connector, and the IKEI3 must be arranged is shown. I have. In step # 2, the tools 20 assigned to the respective working machines, in particular, the respective odd-shaped component mounting machines C and D are placed in the respective tool positions N of the tool placement section 18.
O. 1 to NO. Set to 5 This process has three stages of Step # 2a to Step # 2c. Step # 2a
Then, the tool 20 used in the previous production type is set at the same arrangement position of the same deformed component mounting machines C and D. In the tool placement column of the deformed component mounting machine C, the chuck of the tool position number 1 is set. The small is the same as that of the previous production type, and the tools 20 used in common are allocated to the same arrangement position.

In step # 2b, the tools 20 unique to the current production type are arranged so as to be arranged in ascending order of the size of the parts to be handled. , In the connector with tool position number 3 and IKE with tool position number 5
The tool for I3 is the corresponding tool 20, which is arranged in ascending order of the size of the parts handled. Here, the dimensions of the connector and the IKEI3 are larger for the IKEI3.

In step # 2c, of the tools arranged and set in step # 2b, it is checked whether or not the tools 20 at the adjacent tool positions interfere with each other. If it is larger than the interval between the tool positions, one tool position is opened and the next empty tool position is set. In the tool arrangement result of the odd-shaped component mounting machine C, as a result of the adjacent check for the connector and the IKEI3, one tool position is arranged with a gap.

The operation of judging such interference can be performed after newly allocating the tools 20. One of the tools 20 is arranged next to the existing tool 20 or the existing setting tool 20. Perform each time you set up,
If the conditions are such that they interfere with each other, they may be arranged and set at the next vacant tool position, so that the operation is less wasteful.

[0048]

According to the feature of the tool arrangement setting method of the working machine handling parts according to the present invention, the number of exchanges required for the work change of the already arranged tools arranged in each working machine at the time of the immediately preceding work. Is minimized, and the rearrangement for replacing existing tools is minimized.
When arranging and setting newly required tools corresponding to the newly allocated parts of each work machine, interference between tools is prevented, so a more optimal solution than before is achieved. A close distribution of parts and a distribution and arrangement of tools based on this can be obtained. Moreover, since these are the results of setting and operating according to certain rules, they are not based on human experience or trial and error as in the past, and in any case, the predetermined progress is stably performed. The optimal solution or a setting close to it can be made efficiently.

Further, according to the following feature, the work time in each work machine can be obtained only by setting such a small number of newly required parts and tools while following the work results of the previous work. The working time can be mutually balanced so that the difference between the work times is minimized.

According to another feature, mutual interference due to the difference in the size of the tools to be rearranged can be avoided by a procedure according to a certain rule, which makes the setting operation particularly complicated. Time does not elongate.

According to the feature of the tool placement determining apparatus for a working machine which handles parts according to the present invention, the timely operation of each means causes the input of component information and tool information necessary for the next work, and one Based on the part information and tool information stored in the storage means for the previous work, the above-described method of setting the tool arrangement is automatically, quickly and accurately performed by the operation of the arithmetic means according to a predetermined rule. Can be achieved.

According to the following feature, the worker can easily work without hesitation while referring to the information, and the error is less likely to occur.

According to another feature, it is possible to instruct and manage a tool change in each work machine by a display on a host control means for managing and controlling each work machine.

According to another feature, the information is displayed on each work machine together with or separately from the display on the host control means.
It can also be used individually for sorting and arranging each part and tool.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a production line system including a plurality of odd-shaped component mounting machines according to one representative embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a modified component mounting machine arranged in the production line system of FIG.

FIG. 3 is a plan view showing a relationship between a placement part of a tool for handling components of the placement machine of FIG. 2 and a placement head.

FIG. 4 is a block diagram of a control device of the device of FIG. 2;

FIG. 5 is a block diagram of a host control device that manages and controls the entire production line system of FIG. 1;

FIG. 6 is a flowchart illustrating sequence control for setting component allocation, tool allocation and arrangement of the host control device in FIG. 5;

FIG. 7 is a flowchart illustrating a procedure of a conventional operation for deciding parts distribution, tool distribution and arrangement.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Circuit board 2 Electronic component 5 Component supply part 8 Substrate conveyance / positioning mechanism 18 Tool placement part 19 Mounting head 20 Tool 21 Tool connection part 30 Operation panel 31 Control device 32 Program file 33 Storage means 41 Host control device 42 Operation panel 43 Program File 44 Storage means A, B High-speed placement machine C, D Deformed component placement machine

Claims (7)

[Claims] A plurality of tools are selected and used in accordance with the type of a part to be worked each time, and a plurality of tools are used to handle a corresponding part and perform a predetermined work. For the tool placement setting method, if the part required for the next work to be reassigned corresponds to the placed tool that has been placed on each work machine at the time of the previous work, the work with the placed tool For tools that handle parts assigned to each work machine with priority given to the machine, the arrangement of tools that have already been assigned corresponding to parts assigned with priority is given priority as it is in the previous work. At the same time, the layout of the tools that are newly allocated in accordance with the newly allocated parts of each work implement is the same as the size and size of the existing tools or the existing tools that have already been set. Etc. adjacent positional relationship arrangement setting method of working machine tool handling parts and setting the arrangement comprising a positional relationship in which they do not interfere with each other. 2. When allocating parts required for the next operation, parts to be newly allocated without corresponding to the already arranged tools at the time of the immediately preceding operation are mutually associated with the time required for the predetermined operation in each work machine. 2. The tool placement setting method for a working machine that handles components according to claim 1, wherein the tool is set so that the difference between the working machines is minimized. 3. A method for setting a tool to be newly allocated in response to a new component allocation, next to the already-arranged tool or the already-arranged setting tool, includes determining a radius of a circumcircle of both adjacent tools. When the sum is greater than the pitch between the adjacent tool arrangement positions, it is determined that both tools interfere with each other, and the adjacent position is separated by one and set to the next vacant arrangement position. A method for setting and arranging a tool of a working machine that handles the component according to claim 1. 4. First input means for inputting information on the type of a part handled by each work machine, and information on the type and arrangement position of a tool arranged to handle the part, and Storage means for storing information and updating the stored contents when new information is input, and second input means for inputting information on the type of component to be handled in the next operation and information on the type of tool for handling the same 3. The procedure of the method according to claim 1, wherein the information of the type of the part handled at the time of the immediately preceding operation and the information of the type and arrangement of the tool which handled the part are stored in the storage means. In accordance with (1), a component necessary for the next work machine is allocated, and a calculating means for setting the allocation and arrangement of tools for handling the allocated component is provided. Rule determination device. 5. The part handling device according to claim 4, further comprising a display unit configured to display component distribution information, tool distribution information, and arrangement information set for each work machine that handles the component, from the arithmetic unit. Tool placement determining device for work equipment. 6. The apparatus according to claim 5, wherein the display means is provided in an upper-level host control means for managing and controlling each work machine. 7. The apparatus according to claim 5, wherein the display means is provided in each work machine.