JPH03217079A - Method and device for adjusting printed circuit board storage part in rack for the storage - Google Patents

Abstract

PURPOSE:To enable an adjustment operation for changing the size of a storage part according to the size of a printed circuit board to be executed automatically and efficiently by clamping a movable plate for fixing tentatively while a rack is fixed by clamping a fixing plate, loosening a set screw of the movable plate, and then moving the movable plate. CONSTITUTION:A fixing plate 108 is clamped by outside clamping members 4a and 4b and inside clamping members 5a and 5b for fixing a rack 100 by enabling the fixing plate 108 of the rack 100 to contact the outside clamp members 4a and 4b for clamping the fixing plate. Then, the position of a movable plate 110 is probed and confirmed by a movable plate clamping mechanism III, the tip of drivers 10a and 10b is allowed to approach a set bolt of the movable plate 110, and then the movable plate 110 is clamped by inside clamp members 7a and 7b and outside clamp members 8a and 8b. Then, the set bolt of the movable plate 110 is loosened by the drivers 10a and 10b and then the movable plate 110 is moved to a specified position. Then, after fixing the movable plate 110 by clamping the set bolt of the movable plate 110, approaching and each clamping of the drivers are canceled out.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a rack for storing printed circuit boards that is used to hold a large number of printed circuit boards at regular intervals when storing and transporting them. The present invention relates to a method and device for adjusting a board storage section that can be automatically adjusted according to the size of a printed circuit board to be loaded.

[Conventional technology]

The printed wiring board, which can be called the heart of electronic equipment products, is the manufacturing process of the printed wiring board itself. Alternatively, in the production line leading up to the production of electronic products that incorporate this printed wiring board, a certain number of boards with the same size and shape are stored in a dedicated rack, and this rack is brought into the flow of the production line and installed as needed. Racks are used frequently and in a variety of ways in production lines, such as by taking out substrates and processing them, or returning them to the racks after processing for later use.

As shown in Fig. 3, the rack for printed circuit boards is designed so that it can store printed circuit boards of various sizes according to the size of the rack 100 dedicated to printed circuit boards. ) Fixed plate 1 having a large number of parallel protrusions 107 for mounting and supporting one side edge
08, and a movable plate 1 having a large number of similarly parallel protrusions 109 for mounting and supporting the opposite side edge of the printed circuit board.
10, and this movable plate 110 is connected to the upper and lower side temporary 101.
, 102 groove portion 11L 112, 113, 11
The printed circuit board is slidably supported and fixed to the upper and lower side plates 101, 102 by fixing bolts 115, 116, etc. passed through the long holes of 4, and the printed circuit board is placed between each of the protrusions 107, 109. This makes it possible to store a large number of items.

In the figure, reference numerals 103, 104, 105, and 106 indicate metal rods constituting the four corners of the rack, and 119 and 120 indicate handles of the rack.

In order to automatically adjust the position of the movable plate of such a rasok, the applicant first automatically detects and confirms the position of the movable plate relative to the fixed plate, moves it to a predetermined position, and then We have proposed an adjustment method for fixing the movable plate with screws in the moving position and adjusting the interval according to the size of the printed circuit board, and a device used for this adjustment method (Japanese Patent Application Laid-open No. 119297/1983).

[Problem to be solved by the invention]

The adjustment method and device disclosed in JP-A No. 63-119297 completely eliminates the conventional manual spacing adjustment and automatically moves the movable plate of the rack according to the dimensions of the printed circuit board. Because it can be adjusted to the desired position, it is a ground-breaking technology that allows it to be incorporated into a production line for manufacturing electronic equipment and run virtually unmanned.

However, through subsequent use of this adjustment method and its device, it has been found that there remains room for improvement mainly in the following points.

■ Depending on the user, there are cases in which automatic adjustment is attempted by manually supplying racks for board storage into the production line6, without installing this equipment on a fully automated line for manufacturing electronic products. It would be better if there was a low-cost device that could be applied to both automated and fully automated lines, and at the same time, could be used freely as needed.

■ To improve the time and efficiency for automatic adjustment of the movable plate by simplifying the mechanism of the device.

In particular, this device has a structure in which the movable plate is moved to the maximum permissible width with the stop bolt loosened, and then pulled back to a predetermined position, which makes the mechanism complicated. Automatic adjustment takes time and increases the cost of the equipment, so improvements are desired.

The inventors of this invention have completed this invention as a result of intensive research to address the current problem that needs to be improved.

[Means to solve the problem]

The method for adjusting the board storage section of a printed circuit board storage rack according to the present invention is to carve protrusions in multiple stages up and down on the facing surfaces of a fixed plate and a movable plate facing thereto, and to insert a large number of protrusions between the protrusions. In a printed circuit board storage rack configured to hold printed circuit boards at regular intervals, the distance between the board storage section consisting of the fixed plate and the movable plate can be adjusted by (8) placing the fixed plate of the rack in front of the fixed plate; Step of fixing R-2 by bringing the fixing plate into contact with the outer clamp member for clamping and clamping the fixing plate by the outer clamp member and the inner clamp member protruding inside the fixing plate.

(B) While the rack is in the fixed state, the position of the movable plate is probed and confirmed using the clamp member for the movable plate clamp, and the tip of the driver is brought close to the fixing bolt of the movable plate, and then the movable plate constitutes the clamp member. A process of clamping by an inner clamp member and an outer clamp member.

(C) A step of loosening the fixing bolt of the movable plate screwed to the rack by the driver, and then moving the movable plate together with the clamped driver to a predetermined position.

(D) A step of tightening the fixing bolt of the movable plate by the dryer eight to fix the movable plate at the set position, and then approaching the dryer eight and releasing each clamp between the fixed plate and the movable plate.

It is characterized by sequentially implementing the following steps.

On the other hand, the adjusting device for the board storage section of a rack for storing printed circuit boards has protrusions carved in multiple stages up and down on the facing surfaces of a fixed plate and a movable plate facing the fixed plate, and a large number of printed circuit boards are arranged between the protrusions. In order to adjust the distance between the fixed plate and the movable plate in a rack for storing printed circuit boards configured to hold the fixed plates at a constant interval, (E) an outer clamp member that comes into contact with the leading outer surface of the fixed plate of the rack when activated; , an inner clamp member that protrudes inside the fixing plate when the outer clamp member is activated and clamps the fixing plate in cooperation with the outer clamp member.

(F) An inner clamp member for a movable plate clamp that protrudes inward of the movable plate while the fixed plate is clamped and probes the position of the movable plate and makes contact with the movable plate; A movable plate clamping mechanism comprising an outer clamp member that clamps the movable plate in cooperation with the clamp member.

(G) A driver mechanism that is connected to the operation of the movable plate clamp mechanism (F) and configured to loosen and tighten the fixing bolt of the movable plate in the clamped state using an equipped driver.

(H) Move the movable plate clamp mechanism (F) to the driver mechanism (G)
and a moving mechanism for moving it to the desired setting position.

It is characterized by comprising each of the following mechanisms.

[For production]

The method of adjusting the board storage section of a printed circuit board storage rack according to the present invention is specifically carried out using the device of the embodiment shown in FIG. The explanation is as follows.

The rack 100 is installed on the workbench 2 in the adjustment device 1 by placing the fixed plate 108 in front of the movable plate 11100.
The fixed plate 108 is clamped by the fixed plate clamp mechanism H.

That is, a pair of left and right outer clamp members 4a arranged at the upper part of the adjustment device Wl and a pair of left and right outer clamp members 4b arranged at the lower part are made to protrude from both sides of the adjustment device 1 and come into contact with the outer surface of the fixing plate 108. Afterwards, a pair of left and right inner clamp members 5a arranged on the upper part of the adjustment device 1 and a pair of left and right inner clamp members 5b arranged on the lower part are protruded from both sides of the rack 100 toward the inside of the fixing plate 108, and the above-mentioned outer The fixing plate 108 is clamped in cooperation with the clamping members 4a and 4b, thereby causing the lassock 100 itself to be adjusted to the adjusting device 1.
Fixed to. (See Fig. 2(a)) The operation of the fixed plate clamping mechanism (2) is carried out by air cylinders 5a, 6b.

When the process of clamping the fixed plate 108 by the fixed plate clamping mechanism (2) is completed, the movable plate clamping mechanism (2) operates to clamp the movable plate 110 and temporarily fix the movable plate.

That is, the movable plate clamp mechanism (2) moves together with the driver mechanism (2) to probe and confirm the position of the movable plate 110, and inside the movable plate 110, a pair of left and right inner clamp members 7a arranged at the upper part and a pair of left and right inner clamp members 7a arranged at the lower part are connected to the movable plate 110. The inner clamp members 7b protrude from both sides of the rack 100 to the inside of the movable plate 110 and come into contact with the inside of the movable plate 110. At the same time, on the outside of the movable plate 110, a pair of left and right outer clamp members 8a arranged at the upper part and a pair of left and right outer clamp members 8b arranged at the lower part are attached to the movable plate 110 from both sides of the rasok 100.
The movable plate 110 is protruded outwardly and cooperates with the inner clamp members 7a and 7b to clamp the movable plate 110 and temporarily fix the movable plate in that position. (See FIG. 2(a)) Next, with the movable plate 110 clamped, a driver moves along with the movable plate clamp mechanism ■ and is positioned close to the fixing bolts 115 and 116 of the movable plate 110. Mechanism ■driver 10a. 10b loosens the locking bolts (corresponding to 115 and 116 in FIG. 3).

When the step of loosening the stop bolts l-115 and 116 is completed and the movable plate 110 is free from the rasok 100, the inner and outer clamp members 7a,
With 7b, 8a, and 8b clamped, the movable plate 11
0 to the right direction as shown by the arrow in FIG. 2 (al), and directly to the predetermined position shown in FIG. 2(b).

At this time, the driver mechanism ■ also has this movable plate clamp mechanism ■
The movable plate 110 is fixed by tightening the loosened fixing bolts 115 and 116 at predetermined positions on the movable plate 110.

The operation of loosening and tightening the locking bolts 115 and 116 by the driver mechanism ■ is as follows. The driver members 10a, 10b detect the exact position of the set screw, and the air cylinders 9a, 9b move the driver members 10a, 10b up and down toward the set bolt to loosen the set bolt and tighten it with a constant tightening torque. It is something to do.

Transfer of movable plate clamp mechanism ■ and driver mechanism ■ 13 The movement is performed by the moving mechanism ■.

The moving mechanism (■) has a pair of upper and lower drive shafts 11a and llb composed of ball screws. Motor 1 equipped with position detection function
4. It is configured to rotate in the same direction via pulleys 13a, 13b and belt 12, and the left and right pairs of movable plate clamp mechanisms (■) and driver mechanisms (■) are connected to the drive shaft 11a at the top and to the drive shaft 11a at the bottom. It is connected to the drive shaft 1lb and gives a given rotation to each drive shaft by controlling the rotation speed and rotation angle of the motor 14, and moves the movable plate clamp mechanism (■) and the driver mechanism (■) by a predetermined amount of movement. It is configured like this.

However. The position of the movable plate 110 is . For example, in order to detect and confirm using a position detection sensor such as a photoelectric sensor, move the clamped movable plate 110 using the moving mechanism ①, and move the clamped movable plate 110 to a predetermined position that matches the size of the printed circuit board, it is necessary to This is done by setting the amount of displacement from the position of the plate 108 in advance, and rotating the motor 14 with a position detection function so as to match this set value.

14 When the driver mechanism ■ completes fixing the movable plate 110 to the side plates 101 and 102 with screws, the driver members 10a and 10b move away from the rack, and the fixed plates that fixed the fixed plate 108 and the movable plate 110 respectively The clamping of the rack 100 by the clamp mechanism (2) and the movable plate clamp mechanism (2) is released, the rack 100 is taken out from the adjustment device 1 and separated from the workbench 2, and the interval adjustment work is completed.

Note that the workbench 2 on which the rasok 100 is placed to perform the above-mentioned operations may be of the type of a belt conveyor or roller conveyor.

〔Example〕

below. DESCRIPTION OF THE PREFERRED EMBODIMENTS The adjustment device for a board storage section in a printed circuit board storage rack according to the present invention will be described in more detail based on the accompanying drawings.

The adjustment device 1 includes a workbench 2 on which the rack 100 shown in FIG. and a movable plate clamp mechanism ■ that clamps the movable plate 110 that constitutes the rack 100. A driver mechanism (2) equipped with a driver for loosening the stop bolt of the movable plate 110 attached to the rasok 100 to bring it into a movable state, and tightening the stop bolt to change the movable state to a fixed state; and the movable plate clamp mechanism (2). Driver mechanism■
The movable plate 110 is made up of a moving mechanism (2) for moving the movable plate 110 and fixing it at a set position.

The rack 100 is placed on the workbench 2 with the protrusions 107 and 109 formed on the fixed plate 108 and the movable plate 110 facing each other horizontally, and with the fixed plate 108 in front and the movable plate 110 in the rear. Place it.

The fixing plate clamp mechanism (■) is placed at the left end of the adjustment device 1, and is moved up and down by an air cylinder 6a provided at the top. A pair of left and right outer clamp members 4a that perform predetermined operations
and a pair of left and right outer clamp members 4b that are moved up and down by an air cylinder 6b provided at the bottom to perform predetermined operations, and inner clamp members 5a, 5a, 5a, 4b, and 5a, which are disposed near these outer clamp members 4a, 4b. 5b.

The outer clamp members 4a and 4b protrude from upper and lower positions on both sides of the rack 100 toward the outside of the fixing plate 108 and come into contact with it, and cooperate with the inner clamp members 5a and 5b to clamp the fixing plate 108 and close the rack. 100 is fixed.

The inner clamp members 5a, 5b are configured to protrude and be retracted into the fixing plate 108 from upper and lower positions on both sides of the rack 100 by air cylinders, and the inner clamp members 5a, 5b cooperate with the outer clamp members 4a, 4b due to the protrusion. Fixed plate 1
The rasok 100 is fixed by clamping 0B.

The movable plate clamp mechanism (2) has a pair of left and right inner clamp members 7a that protrude inside the rack 100 and are configured to be pulled into the original position, and a pair of left and right inner clamp members 7b that are arranged below. Along with establishing. A pair of left and right outer clamp members 8a are configured to similarly protrude outside the movable plate 110 and be retracted into the original position.
is arranged above, and a pair of left and right outer clamp members 8b are arranged below 17, and both can be reciprocated in the front and back direction (left and right in the drawing) by a moving mechanism V to be described later.

The movements of these inner clamp members 7a, 7b and outer clamp members 3a, 3b with respect to the movable plate 110 are the same as those of the inner clamp members. 7a, 7b protrude inside the movable plate 110 and come into contact with the movable plate 110, and outer clamp members 8a, 8b similarly protrude outside the movable plate 110 and come into contact with the movable plate 110, so that the movable plate 110 is clamped by both of them. .

The driver mechanism ■ consists of the upper and lower side plates 101 of the rack 100,
Fixing bolt 115,1 of movable plate 110 screwed to 102
16, and is composed of a pair of left and right upper driver members 10a that are moved up and down by an air cylinder 9a, and a pair of left and right lower driver members tab that are similarly moved up and down by an air cylinder 9b.

The movable plate clamp mechanism (2) and the driver mechanism (2) can be moved within a predetermined range by the moving mechanism (2).

118 This moving mechanism ■ consists of an upper and lower 1
The pair of drive shafts 11a, llb are connected to pulleys 13a, 13t)+
It is connected to a motor l4 with a position detection function via a belt 12. The movable plate clamping machine side (■) and the driver mechanism (■) are connected to this drive shaft 112.1lb, and are directly moved by detecting a preset position by controlling the rotation speed and rotation angle of a motor 14 with a position detection function. is configured to do so.

The movement of the movable plate clamp mechanism (2) and the driver mechanism (2), which fix the movable plate 110 at a set position, is set as the amount of displacement from the fixed plate 108 clamped by the fixed plate clamp mechanism H. The movable plate 100 is configured to move directly relative to this set value and stop at a predetermined position.

A movable plate 1 by an adjusting device 1 consisting of mechanisms from ■ to ■.
The adjustment method and effect of No. 10 are as described in the previous section.

〔Effect of the invention〕

The method for adjusting the board storage section in the rack for storing printed circuit boards of the present invention is to clamp the fixed plate of the rack for adjusting the position of the movable plate to fix the rack, clamp the movable plate to temporarily fix it, and then This is accomplished by loosening the fixing bolts on the plate with a screwdriver, moving the movable plate to a preset position, tightening the fixing bolts with a screwdriver, and removing each clamp on the rack.

Therefore, a rack configured to accommodate printed circuit boards of different sizes is required. When changing the size of the storage section depending on the size of the printed circuit board, the method of the present invention allows the adjustment work to be carried out automatically and efficiently.

On the other hand, the adjustment device for the board storage section in the printed circuit board storage rack of the present invention includes a fixed plate clamp mechanism that clamps and fixes the fixed plate of the rack to be adjusted, a movable plate clamp mechanism that clamps the movable plate of the rack, A driver mechanism equipped with a driver for loosening a stop bolt of a movable plate fixed to a rack to bring it into a movable state and tightening the stop bolt to change it from a movable state to a fixed state, and a combination of the movable plate clamp mechanism and the driver mechanism. It is composed of a moving mechanism for moving the object.

Therefore, since there is no need to manually measure and change the distance between the fixed plate and the movable plate for each rack, it is possible to save a lot of time and improve the reliability of the adjustment. Together with this, it can bring about a significant improvement in work efficiency.

Also. This adjustment device can directly move the movable plate in a clamped state to the predetermined position without the extra step of moving the movable plate to the maximum allowable range of movable plate movement and then moving it to the predetermined position. It is extremely efficient and can be installed manually or automatically into a printed circuit board production line or an electronic device production line using printed circuit boards to automatically adjust the distance between the movable plates, making it inexpensive and extremely versatile. It has many merits, such as being able to provide equipment with

[Brief explanation of drawings]

21 FIG. 1 is a schematic side view showing an example of the adjustment device for the board storage section in the printed circuit board storage rack of the present invention, and FIG. 2 is a schematic side view showing the structure and process of the device for adjusting the movable plate in the rack. FIG. 4 is a schematic plan view, in which (a) shows the clamped state of the fixed plate and the movable plate, and (b) shows the state when the movable plate is moving. (C) shows the state of the racks whose spacing has been adjusted. FIG. 3 is a perspective view showing an example of a rack applied to the adjustment device of the present invention. ■... Adjustment device 2... Workbench 4a, 4b... Outer clamp members 5a, 5b for fixed plate clamp... Inner clamp members 7a, 7b for fixed plate clamp... For movable plate clamp Inner clamp members 3a, 13b...Outer clamp members 10a, 10b for movable plate clamps...Driver members 11a, llb...Drive shaft 22 14...Motor 100...Rack 101, 102...・Side plate 108... Fixed plate 110... Movable plate 115, 116... Fixing bolt ■... Fixed plate clamp mechanism ■... Movable plate clamp mechanism ■... Driver mechanism ■... Moving mechanism

Claims (2)

[Claims] (1) A printed circuit board storage structure in which protrusions are carved in multiple stages above and below on the facing surfaces of a fixed plate and a movable plate facing it, and a large number of printed circuit boards are held at regular intervals between the protrusions. In the storage rack, the interval between the board storage section consisting of the fixed plate and the movable plate is adjusted according to the following (A) to (D).
) A method for adjusting a board storage section in a printed circuit board storage rack, characterized in that the method is carried out sequentially according to the steps of (1). (A) The fixing plate of the rack is brought into contact with the outer clamp member for clamping the fixing plate, and the fixing plate is clamped by the outer clamp member and the inner clamp member protruding inside the fixing plate to fix the rack. Process. (B) While the rack is in the fixed state, the position of the movable plate is probed and confirmed using the clamp member for the movable plate clamp, and the tip of the driver is brought close to the fixing bolt of the movable plate, and then the movable plate constitutes the clamp member. A process of clamping by an inner clamp member and an outer clamp member. (C) A step of loosening the fixing bolt of the movable plate screwed to the rack by the driver, and then moving the movable plate to a predetermined position together with the driver while keeping the movable plate in the clamped state. (D) The step of tightening the fixing bolt of the movable plate with the driver to fix the movable plate at the set position, and then approaching the driver and releasing the clamps between the fixed plate and the movable plate. (2) A printed circuit board storage structure in which a fixed plate and a movable plate facing each other have protrusions carved in multiple stages on the opposing sides, and a large number of printed circuit boards are held at regular intervals between the protrusions. An adjustment device for a board storage section in a printed circuit board storage rack, characterized in that the rack is equipped with the following mechanisms (E) to (H) for adjusting the distance between the fixed plate and the movable plate. (E) an outer clamp member that comes into contact with the leading outer surface of the fixing plate of the rack when activated, and an inner side that projects inside the fixing plate in the activated state of this outer clamp member and clamps the fixing plate in cooperation with the outer clamp member; A fixed plate clamp mechanism composed of a clamp member. (F) An inner clamp member for a movable plate clamp that protrudes inside the movable plate when the fixed plate is clamped and probes the position of the movable plate and contacts the movable plate; and an inner clamp member that protrudes outside the movable plate and contacts the movable plate; A movable plate clamp mechanism composed of an outer clamp member that clamps the movable plate in cooperation with the other members. (G) A driver mechanism that is connected to the operation of the movable plate clamp mechanism (F) and configured to loosen and tighten the fixing bolt of the movable plate in the clamped state using an equipped driver. (H) Move the movable plate clamp mechanism (F) to the driver mechanism (G)
and a moving mechanism for moving it to the desired setting position.