JPH0290596A - Automatic chuck replacing system - Google Patents

Abstract

PURPOSE:To replace a chuck automatically and rapidly by a method wherein a mechanism mounting a chuck on an inserting head and another mechanism dismounting the chuck from the inserting head are provided, and a means is provided to feed a chuck, which is to be mounted, to the mounting mechanism from a chuck housing mechanism in a minimum time. CONSTITUTION:An automatic chuck replacement system is composed of an inserting head unit 1 provided with eight inserting heads 2A-2H and a rotary mechanism which rotates in a direction of all arrow, a circulating type chuck mounting unit 4 provided with a 18 chuck housing station 5 and a chuck mounting section 7, a chuck discharging unit 6, and a component supply unit 8. When the inserting head 2A has finished the insertion of an electronic component into a printed board, the inserting head unit 1 rotates in a direction shown by arrow, the inserting head 2A is transferred to a chuck discharging position and discharges a chuck, and concurrently the circulating type chuck mounting unit 4 is made to move. Next, the chuck mounting unit 4 transfers a chuck, which is to be mounted on the inserting head 2A, to a chuck mounting section 7. Moreover, the inserting head 2A is mounted with a new chuck through the rotation of the inserting head unit 1. The above operation is executed for each inserting head.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to automatic chuck replacement for an electronic component insertion device, and particularly to an automatic chuck replacement method suitable for improving operating efficiency.

[Conventional technology]

Conventionally, chucks for electronic component insertion devices have been used by arranging chucks in a predetermined order that corresponds to the order of the components to be inserted, or by having multiple insertion heads to accommodate several types of component shapes. There are methods such as attaching a chuck to the insertion head.

For example, as in Japanese Patent Application Laid-open No. 60-7200, there is a known method for inserting various electronic components into printed circuit boards by arranging multiple robot devices equipped with multiple chucks (with the same number of insertion heads). ing.

[Problem to be solved by the invention]

The above-mentioned conventional technology is used when changing the insertion order of parts,
When changing the inserted part, the corresponding chuck must be replaced manually.

Further, it is necessary to insert various types of electronic components into the printed circuit board, and if a method is adopted in which electronic components are distributed and inserted depending on the shape of the component, this cannot be handled without providing a large number of insertion devices.

As a result of the above, there are problems in that a lot of time is spent changing the setup of the device, and a large number of devices are required to assemble one printed circuit board.

An object of the present invention is to solve the problems of the prior art described above, and to provide an automatic chuck exchange system that allows chucks to be exchanged automatically and at high speed.

[Means to solve the problem]

The above purpose is to provide a mechanism for providing a chuck that stores and attaches a plurality of chucks, a mechanism for attaching the chuck to the insertion head, a mechanism for removing the chuck from the insertion head, and a mechanism for attaching the chuck from the chuck storage mechanism in the shortest possible time. This can be achieved by providing means to provide this.

[Operation] When the insertion of the electronic component into the printed circuit board is completed, it is determined whether the chuck attached to the insertion head is the one to be used for the next electronic component to be inserted. When it is determined that chuck replacement is necessary, the chuck is removed from the insertion head at the chuck ejection position, and the removed chuck is temporarily stored at the ejection station. At the same time, a chuck to be mounted is found in the chuck storage mechanism and the chuck is provided at the mounting position.

The insertion head that has ejected the chuck attaches the prepared chuck to the attachment position. The chuck that has been ejected and placed at the ejection station is returned to the empty chuck storage station closest to the chuck storage position when chuck replacement is not required. In other words, a chuck is delivered to the loading position via the closest path, and an ejection chuck is returned to the chuck retraction mechanism not to the station where it was stored, but to the nearest empty station from the chuck storage position. By restoring
Chuck exchange can be done automatically and quickly.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

First, the outline of this embodiment will be explained with reference to FIG. 1. It has eight insertion heads 2A to 2H, an insertion head unit 1 having a rotating mechanism in the direction of the arrow, 18 chuck storage stations 5, and a chuck mounting section. It consists of a circulating chuck mounting unit 4 with a chuck 7, a chuck discharging unit 6, and a parts supply unit 8. When the insertion head 2A finishes inserting the electronic component into the printed circuit board, the insertion head unit 1 rotates in the direction of the arrow, the insertion head 2A moves to the chuck ejection position, and at the same time the chuck is ejected, the circulating chuck mounting unit 4 moves. Then, the chuck to be mounted by the insertion head 2A is delivered to the chuck mounting section 7. As the insertion head unit 1 further rotates, the insertion head 2A attaches a new chuck. Each insertion head performs this operation.

Next, this embodiment will be explained in more detail.

As shown in FIG. 2(a), the insertion head 2A is inserting an electronic component into a printed circuit board. When the insertion is completed, the insertion head unit 1 rotates in the direction of the arrow, and the insertion head 2
A moves to the chuck ejection position. At this point, determine whether the chuck needs to be replaced.

Since the insertion head 2A uses the chuck I next.

The chuck A is removed, and the removed chuck A is stored in the -time chuck discharge unit 6.

At the same time as the chuck is ejected, the circulating chuck mounting unit 4 searches the chuck storage table for a station where the chuck I to be mounted next by the insertion head 2A is stored. When the stored station is found, the chuck is delivered to the chuck mounting section 7 through the shortest route.

Determine which direction to move, the six directions or the B direction. Due to the storage table in the chuck, the chuck I is the 9th
It is searched to be stored in the station, and
It can be seen from the chuck mounting position table that the sixth stationary eye is currently at the chuck mounting position. The moving direction is calculated from these two data. As a result of the calculation, it was determined that moving in the direction A would be 3 steps, and moving in the B direction would be 15 steps. is moved to deliver the chuck to the chuck mounting section 7. At this time, the area corresponding to the 9th station of the chuck storage table is cleared, the chuck mounting position table is stored at 9, and A is stored on the discharge chuck table. (Figure 2 (b), Figure 3 (a), (b).

(Fig. 5) When the insertion head unit 1 rotates again, the insertion head 2
A attaches chuck I. (Figure 2 (C), Figure 3 (
C)) At this time, the insertion head 2B is positioned at the chuck ejection position, but chuck B will be used next time, so there is no need to replace the chuck.

Therefore, processing is performed to return the chuck A stored in the chuck discharge unit 6 to the chuck storage station 5. Search for the nearest empty station from the storage station located at the position corresponding to the chuck return position. Currently, the 13th stage is at the return position, and from this position, the closest station among the empty stations 1 to 9 is calculated. As a result, it is determined that the closest path is to move the ninth station in direction B and store chuck A, and performs the operation.

(Figure 2 (d), Figure 3 (C), Figure 6) Chi'ry A
has been returned to the ninth station, so the corresponding area A on the chuck storage table is stored and O is stored on the discharge chuck table. (FIG. 3(d)) Electronic components are inserted while performing the operations described above.

This embodiment improves the operating rate of the device and improves economic efficiency by realizing automatic chuck exchange and assembly with a single insertion device without manual chuck exchange or assembly using multiple insertion devices as in the prior art. It is effective in terms of

〔Effect of the invention〕

According to the present invention, it is possible to eliminate the need to stop the device due to manual chuck replacement, and the need for multiple insertion devices to assemble various electronic components can be replaced with one insertion device. By being able to respond, it has the effect of improving the operating rate and improving economic efficiency.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an outline of an embodiment of the present invention. FIG. 2 is an explanatory diagram showing the chuck exchange operation, FIG. 3 is an explanatory diagram showing the state of the chuck exchange table, FIG. 4 is an overall flowchart of the present invention, FIG. 5 is a chuck providing process flowchart, and FIG. The figure is a flowchart of chuck return processing. 4... Chuck mounting unit, 5... Chuck storage station, 6... Chuck ejection unit, 7...
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Claims (1)

[Claims] 1. In an electronic component insertion device, a chuck exchange device consisting of a chuck storage device equipped with a chuck storage station where prepared chucks are stored individually, and a chuck return device equipped with an ejection station that temporarily stores the ejected chucks. , to search for a chuck to be used from among the chuck groups and provide the chuck in the shortest route, and also to search for and return the ejected chuck to a storage station where the chuck is returned to the storage station in the shortest route among the storage stations where no chuck is stored. The automatic chuck exchange system is characterized in that a table is provided for managing the type and presence of chucks stored in each storage station and the type of chucks stored in the discharge station.