JPH041508Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is applied to an automatic checker that electronically inspects whether the wiring pattern of a double-sided printed circuit board conforms to standards. This relates to a unitized jig.

[Prior art and problems] In general, pinboard jigs for automatic checkers are
A bake board with many pins embedded in it is used by attaching it to the upper and lower dies of the press mechanism, and the problem with conventional pin board jigs is that it takes 3 to 4 hours to attach them to the upper and lower dies. Ta.

This was due to the laborious work required to accurately attach the upper and lower dies to the upper and lower dies, which required precise alignment with the double-sided printed circuit board.

In addition, in conventional pinboard jigs, the pins are implanted in the baked plate and exposed, and no other supports are attached to the baked plate.
There was also the problem that when the pinboard jig was removed from the die and placed on a shelf or the like, the exposed pins would inadvertently come into contact with surrounding objects and become bent.

[Purpose of invention]

An object of the present invention is to provide a pinboard jig for an automatic checker for printed circuit boards that eliminates the above-mentioned problems.

[Structure of the idea]

This invention forms positioning notches at the four corners of the upper and lower pin boards in which a large number of pins are installed, and arranges bottom plates in the back direction of each of the upper and lower pin boards, and the four corners of the two bottom plates A regulation shaft is placed between each of the upper and lower pin boards, and the regulation shaft is applied to the notch of the upper and lower pin boards, and a resilient member is inserted between the upper and lower pin boards and the bottom plate at the position of the regulation shaft, so that the upper and lower pin boards are spaced a certain distance from the bottom plate. An automatic printed circuit board, characterized in that the press mechanism is suspended in parallel, a stopper for positioning is provided at the attachment part of the press mechanism, and a locking tool that engages with the stopper is formed on the bottom plate to form a unit. This is a pinboard jig for checkers.

[Example of idea]

Next, the present invention will be explained with reference to the embodiments shown in the drawings.

Figure 1 is a front view of the present invention installed in a press mechanism, Figure 2 is a front view of the same inspection state, Figure 3 is an enlarged front view of the bottom plate and press mechanism, and Figure 4 is a plan view of the same. be.

In the figure, reference numerals 1a and 1b are upper and lower pin boards made of baked plates, etc., 2a and 2b are pins protruding from the pin boards, and 3 is positioning notches formed at the four corners of the pin board. This notch 3 may be formed at a location other than the four corners of the pin board. Bottom plates 4a, 4b are arranged in the back direction of the pin boards 1a, 1b, and the bottom plates 4a, 4b
In between, at the four corners of both bottom plates, there are pin boards 1a,
A regulating shaft 5 for accurately setting the mounting position of 1b is spanned. A resilient member 6 made of a coil spring or the like is inserted between the upper and lower pin boards 1a, 1b and the bottom plates 4a, 4b of the regulation shaft 5. , 1b pins 2a, 2
This means that the contact pressure with b can be adjusted to an optimal state. Furthermore, reference numerals 7a and 7b are mounting dies of the press mechanism, 8 is a shaft of the press mechanism, 9 is a slider that compensates for play between the shaft and the mounting die and ensures smooth vertical movement, 10 is an air cylinder of the press mechanism, and 11 is a This is the press base.

Further, there is a locking tool 12 formed by a recess or the like on the side wall of the bottom plates 4a, 4b, and a stopper 13 that engages with this locking portion 12 is connected to the mounting die 7 of the press mechanism.
They are provided at predetermined positions of a and 7b. The locking portion 12 and the stopper 13 are provided at appropriate positions calculated in advance for each type of printed circuit board A.

Next, to describe the function of the present invention, the two bottom plates 4
The relative positions of the upper and lower pinboards and the bottom plate are determined by tightly fitting the notches 3 of the upper and lower pinboards 1a and 1b into the regulation shaft 5 that is stretched between the four corners of the upper and lower pinboards 1a and 4b. This position determination can be accomplished extremely smoothly simply by tightly fitting the regulating shaft and the notch.

In this state, the locking part 12 of the bottom plate and the mounting die 7
When the stoppers 13 of a and 7b are engaged, the unitized upper and lower pin boards can be easily accommodated in the proper position of the press mechanism. This position determination is
This can be done very smoothly simply by bringing the locking part and the stopper into contact and engaging, and from then on, the whole is fixed using a fixture (not shown). Therefore, the printed circuit board is always guided to a fixed position within the automatic checker by a guide rail (not shown) that guides the printed circuit board A between the upper and lower pin boards and a separately provided positioning mechanism for the printed circuit board A. Accurate electronic inspection can be performed using the upper and lower pinboard jig of the present invention. That is, as shown in FIG. 2, by driving the air cylinder 10, the press base 11 is used as a fixing source, and the upper mounting die 7a is fixed.
As it descends toward the lower mounting die 7b,
The upper and lower pin boards integrally set on the mounting die approach each other, and the pins 2a and 2b come into contact with the wiring pattern of the printed circuit board A existing at a predetermined position, thereby performing a desired standard inspection.

[Effect of idea]

Therefore, with this invention, it is extremely easy to replace the unitized pin board jig with a press mechanism each time the type of printed circuit board to be inspected changes, and the installation time that conventionally required 180 to 240 minutes has been reduced. It has the excellent effect of shortening the time to about 10 minutes.

Furthermore, since the present invention has a bottom plate on the back of the pin board, when the pin board is removed, the pins of the pin board can be protected by placing the bottom plate on a shelf as a stand, and the pin positions can be maintained as usual. It has features such as eliminating the need for correction work.

[Brief explanation of the drawing]

Figure 1 is a front view of the present invention installed in a press mechanism, Figure 2 is a front view of the same inspection state, Figure 3 is an enlarged front view of the bottom plate and press mechanism, and Figure 4 is a plan view of the same. be. A... Printed circuit board, 1a, 1b... Upper and lower pin board, 2a, 2b... Pin, 3... Notch, 4
a, 4b...Bottom plate, 5...Regulation shaft, 6...
Resilient member, 7a, 7b... Mounting die, 8... Shaft, 9... Slider, 10... Air cylinder, 11... Press base, 12... Locking part, 13
...Stotsupa.

Claims (1)

[Scope of utility model registration request] Cutouts for positioning are formed in the four corners of the upper and lower pin boards in which a large number of pins are embedded, and bottom plates are arranged in the back direction of each of the upper and lower pin boards, and the four corners of the two bottom plates are provided with positioning notches. Suspend the shaft, apply this regulation shaft to the notch of the upper and lower pinboards, insert a resilient member between the upper and lower pinboards at the position of the regulation shaft and the bottom plate, and align the upper and lower pinboards parallel to the bottom plate with a certain distance between them. A stopper for positioning is provided at the mounting part of the press mechanism.
A pinboard jig for an automatic checker for printed circuit boards, characterized in that a locking tool that engages with the stopper is formed on the bottom plate to form a unit.