JPS6396997A - Electric circuit board aligner - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a positioning device for an electric circuit board, which is used for connecting wiring to an electric circuit board or mounting electronic parts and the like.

[Prior Art 1] Various parts, wiring, etc. are mounted on an electric circuit board. For example, a pressure sensor has terminals 2, 2 . . . on both sides, as shown in FIG. A gauge 3 is attached to an electric circuit board 1 on which a wire is attached, and a plurality of wires 4 are connected between the gauge 3 and the board 1. In order to mount the gauge 3 on the board 1, a gauge insertion hole 5 is formed in the board 1, and in order to connect the wiring 4, one end of which is fixed to the gauge 3, to the board 1. As shown in FIG. 7, a number of click pads 8 having a pair of clamping pieces 8a and 6a corresponding to the number of wires are fixed to the substrate 1. .

In order to efficiently assemble the gauge 3 and wiring 4 into the substrate 1 of the pressure sensor formed in this way, when automating this assembly work, the gauge 3 may be assembled into the gauge insertion hole 5 at a certain position. There is no problem even if there is a misalignment, so there is no particular problem, but since the wiring 4 has an extremely thin wire diameter and the size of the clip pad 6 to which the wiring 4 is attached is also small, it is necessary to strictly It is necessary to assemble it after positioning it.

By the way, the substrate 1 of the above-mentioned pressure sensor is a plate made of ceramic or the like divided into a plurality of sections, a predetermined wiring pattern formed in each section, and divided into each section. is common, and the side shape of this board 1 is not subject to strict dimensional control.For this reason, it is difficult to position the board, and the above-mentioned wiring installation cannot be automated. Currently, such wiring connection work has conventionally been performed manually, and it has not been possible to improve the work efficiency. Furthermore, the fact that this wiring connection work cannot be automated means that the wiring soldering work that is performed after the wiring connection cannot be automated either.

[Problem to be Solved by the Invention 1] The present invention has been made in view of the recent demand for automation of the assembly of electrical and electronic components, and even if the shape and dimensions of the board into which wiring etc. are incorporated varies. It is an object of the present invention to provide a positioning device for an electric circuit board that enables accurate positioning.

[Means for Solving the Problems 1] In order to achieve the above-mentioned object, the present invention provides a method for mounting an electric circuit board having a part on one surface for mounting a wiring component, etc., by using a reference surface that comes into contact with the part. In order to guide the part to the reference surface, the mounting means includes a positioning means formed with lead-in parts on both sides of the reference surface, and the mounting means is in pressure contact with the side surface of the substrate, and the mounting means includes a positioning means formed with lead-in parts on both sides of the reference surface, and The feature is that a pressing means for pressing in the direction of contact is provided.

[Function] Therefore, even if the dimensional accuracy of the external shape of the electric circuit board itself is not sufficient, the positions of the mounting parts provided for attaching wiring and components to the board can be accurately positioned. is in a state of being Therefore, in this installation, the part is used as a reference for positioning, and the reference surface of the first positioning member is pressed against the part. Here, when the positioning means is moved toward the mounting part, the mounting part is to be smoothly pressed against the reference surface.

Since the positioning means is provided with lead-in portions on both sides of the reference surface, the mounting portions can be brought into smooth contact with the reference surface. At the same time, the pressing means presses the board in the direction in which the mounting part comes into contact with the reference surface.
By sandwiching it between the pressing means and the positioning means, the mounting portion on the substrate can be reliably positioned.

[Embodiment 1] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

First, in FIGS. 1 to 4, reference numeral 10 indicates a workpiece on which a plurality of attachment parts 10a are attached in parallel to attach wiring, etc. In this state, it is conveyed to a positioning section, where its positioning is performed. A support block 12 is provided in the positioning section so as to be horizontally reciprocatable along the surface of the workpiece 10 by a reciprocating cylinder 13.

A fitting rod 14, which fits into the through hole 10a of the workpiece 10, is attached to the support block 12 so as to be movable in the vertical direction while being held by a holding cylinder 15. The fitting rod 14
An actuating plate 16 extending horizontally is connected to the upper end, and a rod of a rod lifting cylinder 17 installed on the support block 12 for lifting the fitting rod is in contact with the lower surface of the actuating plate 16. A spring 18 is provided at the bottom of the rod 14 to bias it downward.

Next, reference numeral 19 indicates a positioning block, and as is clear from FIG. It is provided with lead-in portions 21, 21 formed on both sides of the body and expanding diagonally.

Then, the lead-in portions 21 at both ends of the reference plane 20
The distance between the connecting parts 10a and 10a on both sides of the workpiece 10 is equal to the distance between the parts 10a.

Further, an actuating rod 22 is connected to the first positioning block 19, and the actuating rod 22 is supported by a bearing block 23 so as to be able to reciprocate in the horizontal direction.The other end is connected to an actuating plate 24, and the actuating rod 22 is The actuating plate 24 is normally held in a retracted position in the direction slightly away from the mounting portion 10a of the workpiece 10 by the return cylinder 25, and when the holding by the return cylinder 25 is released, the positioning block 19 is attached. A spring 28 is compressed between the positioning block 18 and the bearing block 23 in order to move it toward the portion 10a.

The bearing block 23 is supported by two support rods 28 inserted into a holding cylinder 27 attached to the support block 12 so as to be movable up and down, and connecting plates 28 are attached to the two support rods. The connecting plate 28 is connected to the support block 1.
The bearing block 2 is held in the raised position by a lifting cylinder 28 attached to the bearing block 2. When the lifting cylinder 28 is operated, a spring 31 acting on the connecting plate 30 lifts the bearing block 2.
3 is lowered, and at the same time, the positioning block 19 can be lowered to a position where its reference surface 20 is brought into contact with the mounting portion 10a of the workpiece 10.

Further, reference numeral 32 denotes a pressing member that approaches and separates from the side surface of the workpiece 10. The pressing member 32 is connected to a lever 34 rotatably supported by a support shaft 33, and the lever 34 is connected to the support block 12. The provided cylinder 34 is always biased in a direction away from the workpiece 10, and the cylinder 3
When the acting force 5 is released, the urging force of the spring 36 causes the pressing member 31 to be displaced in the direction in which it comes into pressure contact with the workpiece 1o.

This embodiment is constructed as described above, and its operation will be explained next.

The workpiece 10 is placed on the transport jig 11 and is transported along the transport path to the positioning section, whereupon it is lifted off the transport path by a mechanism such as a cylinder or a cam. It is separated from the transport path. At this time, it is preferable to fix the workpiece 10 so that it does not move unnecessarily by means of a fixing means 37 that presses the surfaces of both sides of the workpiece 10 against the transport jig 11, as shown in FIG. 8, for example. .

In the state where the workpiece 10 is transported to the positioning section in this way, each cylinder 17, 2 mounted on the support block 12
5. With steps 29 and 34, the fitting rod 14 is raised and the positioning block 18 is attached to the workpiece 10 at the part 10a.
The pressing member 32 is held in a raised position while being evacuated from the side surface of the workpiece 10, and the pressing member 32 is held in a position evacuated from the side surface of the workpiece 10.

When the workpiece 10 is located at the positioning section, the reciprocating cylinder 13 is first operated to position the support block 12 on the workpiece 10. And rod lifting cylinder 1
7 is actuated to separate it from the actuating plate 16. As a result, the fitting rod 14 is lowered by the action of the spring 18 and is fitted into the through hole 10b formed in the workpiece 10. Here, it is preferable to form a recess into which the tip of the fitting rod 14 is fitted in the conveying jig 11 that supports the workpiece 10, and the fitting rod 14 is inserted into the through hole 1.
When the workpiece 10 is inserted into the workpiece 0b, the fixation of the workpiece 10 by the fixing means 37 described above may be released. In this way, by fitting the fitting rod 14 into the through hole 10b, the work 10 is roughly positioned.

Next, the contact state of the cylinder 25 with the actuating plate 24 is released, and the positioning block 18 is moved to the attachment part 1 of the workpiece 10.
Close to 0a. At this time, first, the mounting is performed on the part 10 by the lead-in part 21 formed on the positioning block 18.
a is guided toward the reference plane 20. Here, as described above, since the workpiece 10 is roughly positioned by the fitting rod 14, the mounting portion 10a is securely attached to the drawing portion 20.
, 21. Then, when the positioning block 19 advances by a predetermined amount, the mounting portion 10a comes into contact with the reference surface 20.

Therefore, when the cylinder 34 is actuated to release the engagement with the lever 38, the pressing member 32 is moved by the action of the spring 36.
rotates about the support shaft 33 and comes into contact with the side surface of the workpiece 10, and the mounting portion 10a of the workpiece 10 is pressed against the reference surface 20 of the positioning block 19.

Here, the length of the reference surface 20 is equal to the length between the corners of both ends of the portion 10a when the mounting portions are installed in parallel. 20
It comes into contact with the reference surface 20 and the connecting part 21, and even if the external dimensions of the workpiece 10 vary, the mounting requires extremely strict positioning of the part 10a. You will be able to do this. Therefore,
The installation work, such as attaching wiring to the portion 10a and soldering, can be carried out smoothly and reliably by an automatic machine.

As described above, after the positioning of the part 10a is completed, the workpiece 10 is first fixed by the fixing means 37 provided on the transport jig 11 in order to fix the workpiece 10. , then cylinders 17, 2
5, 29 and 34, positioning block 1
9, the reference surface 20 and the pressing member 32, and the fitting rod 1
4 is separated from the work 10, and the support block 12 is retracted by the cylinder 13. Then, the conveyance jig 11 is lowered to engage the conveyance path, and the conveyance jig 11 is sent to the next process along the conveyance path.

In addition, the positioning device according to the present invention can be used to position wiring, capacitors, chip components, resistors, etc. in a reference position when the parts are mounted in a state where they protrude from the board. It goes without saying that the workpiece to be positioned is not limited to the pressure sensor shown in FIG. When positioning the workpiece 10 accurately using the positioning block 19 and the pressing member 32, the pressing force of each of these members against the workpiece 10 uses the biasing force of a spring, but this is because the workpiece is made of ceramic or the like. It is made of fragile parts, and since the part is attached to the workpiece using adhesive or other adhesive with a relatively weak adhesion force, it is avoided to apply too much pressure. It is also possible to apply a weak force by reducing the pressure on the cylinder and operating it, and if the workpiece and the mounting attached to it are strong, the cylinder, etc. It is also possible to have the members act directly.

[Effects of the Invention] As described in detail above, the positioning device of the present invention is configured so that the nine wiring parts etc. to be attached to the board are positioned based on the parts, so that variations in the external dimensions of the board are avoided. Even if there is, the mounting allows for extremely accurate positioning of the part, and the mounting allows automation of the mounting of wiring, parts, etc. on the part.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a positioning device showing an embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is an x-
x sectional view, Fig. 4 is a Y-Y sectional view of Fig. 3, Fig. 5 is an explanatory diagram of the configuration of the reference plane, Fig. 6 is an external view showing the state of the pressure sensor before the gauge is attached, and Fig. 7 8 is an explanatory diagram of the configuration of the clip pad, and FIG. 8 is an explanatory diagram of the configuration of the conveyance jig. :0: Workpiece, 10a: Mounting part, 12: Support plot, 14: Fitting rod, 19: Positioning block, 20:
Reference surface, 21: Leading-in portion, 32: Pressing member.

Claims (1)

[Claims] A device for positioning an electric circuit board having a mounting portion for wiring, parts, etc. on its surface, which includes a reference surface that comes into contact with the mounting portion, and a reference surface for guiding the mounting portion to the reference surface. an electric circuit comprising: a positioning means formed by forming lead-in portions on both sides of the board; and a pressing means that presses against the side surface of the substrate and presses the mounting portion in a direction to contact the reference surface. Board positioning device.