JPH05343897A - Method and device for installing connector to circuit board - Google Patents

Abstract

PURPOSE:To guide and insert the front end of the lead of a connector into the lead inserting hole of a circuit board positively and easily and by an automatic inserter. CONSTITUTION:Lead space support members 20 are moved to the front ends of a large number of leads 4 while the positions of the front ends of the leads 4 are brought near to the lead inserting holes of a circuit board 12, to which a large number of lead inserting holes 11 are formed at regular intervals, regarding the front ends of the leads of a connector 1 with the leads 4 at regular intervals and the lead space support members 20, which are set up to a large number of the leads and from which the front end sections of the leads are projected. The lead space support members 20 are retreated to the initial positions by the surface of the circuit board 12 by inserting the front ends of the leads into the lead inserting holes 11, thus inserting the leads 4 of the connector into the lead inserting holes 11 of the circuit board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting a connector on a circuit board and a mounting device therefor.

Electronic / communication devices and the like are becoming smaller and more densely packaged, but on the other hand, functional reliability, maintainability, and good manufacturability are required. For this reason, the circuit board is composed of a printed circuit board of each unit, and the plug-in type connector provided at the tip of the circuit board allows the device and the measuring instrument to be easily and detachably connected.

The connector provided on the circuit board of such a unit is economical and quality reliable in that the attachment to the circuit board is carried out automatically by an automatic device without any trouble in the manufacturing process. This is necessary for manufacturing reasons such as improvement of

The connector attached to the circuit board is shown in FIG.
Those indicated by 0 are commonly used. (A) is a plan view taken along the line AA of (b), (b) is a front view taken along the line BB of (a), and (c) is a view taken along C- of (b). A side view seen from the direction of arrow C is shown in each. A side sectional view of this connector is shown in FIG.

In the figure, this connector 1 is provided with a large number of contact pieces 3 at predetermined intervals for plug-in connection with a mating connector provided on the apparatus side in a connector housing 2 made of a synthetic resin molding, and extends from this. The thin lead 4 extending to the back side is bent at a right angle and further protrudes from the lower surface 5.

Mounting legs 6 and 6 are integrally formed with the connector housing 2 on the rear side of both sides, and mounting holes 7 and 7 and positioning reference projections 8 and 8 are formed on the lower surface on the rear side thereof. Has been done. In FIG. 10 (b), the plurality of holes 9 in which the contact pieces 3 connected to the mating connector are built are referred to as rows in the vertical direction in the figure and columns in the left-right longitudinal direction. Therefore, the arrangement of the leads 4 is also the same.

Lead tips projecting downward from the lower surface 5 of the connector housing 2 are also arranged in rows and columns at predetermined intervals. The predetermined interval means, for example, an inch system has an interval of 2.54 mm, and a metric system has an interval of 2.5 mm.

In this way, with the tips of the leads 4 protruding from the lower surface 5 of the connector, the lead insertion holes 1 are formed at predetermined intervals.
The circuit board 12 on which the connector 1 is formed is approached, and the tips of the leads 4 are inserted and passed through the lead insertion holes 11 to bring the lower surface 5 of the connector 1 into contact with the circuit board 12. In this state, the reference protrusion 8 is fitted into the reference hole of the circuit board 12 (not shown), so that the connector 1 is set to the correct mounting position of the circuit board 12. Therefore, the mounting holes 7, 7 and the circuit board are mounted. A screw or a rivet is applied to the hole to fix them together.

A circuit pattern is formed on the back surface of the lead insertion hole 11 of the circuit board 12, and this circuit pattern and the tip of the protruding lead 4 are soldered to make a circuit connection.

[0010]

2. Description of the Related Art Conventionally, the connector 1 and the circuit board 12 were assembled as described above, but the thin lead 4 of the connector is projected to the rear surface of the connector housing 2 for a long time. It was relatively difficult to align the tip of the lead with the lead insertion hole when inserting it into the insertion hole 11. This is because it is difficult to align all the leads at once because the leads 4 are thin and easy to move, which requires skill. The lead at the left end in the figure has a relatively small variation in position because the protrusion length is short.

On the other hand, immediately after manufacturing, even if the positions of the tips of the leads 4 are at predetermined intervals, it is relatively common that the positions of the tips will not be at the predetermined intervals due to bending due to some bounce during movement or storage. It can also occur during installation work.

Even if an attempt is made to correct this condition, the number of leads 4 is extremely large, and the distance between adjacent leads is narrow.

[0013]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the conventional method of attaching a connector to a circuit board, to facilitate insertion and attachment, and to shorten the time and ensure the assembling work. It is what

Furthermore, the present invention includes enabling the connector to be attached to the circuit board by an automated device. By doing so, it is possible to obtain a high efficiency and reduce the defect rate and improve the quality.

[0015]

The gist of the means of the present invention for solving the above-mentioned problems is to provide a lead interval in which a large number of leads are arranged at a predetermined interval and are attached to the plurality of leads so that the tip portions of the leads protrude. The lead tip of a connector having a support member is moved to the lead tip support member, and the lead tip position is approached to the lead insertion hole of the circuit board in which a large number of lead insertion holes are formed at the predetermined intervals. Then, by inserting the lead tip into the lead insertion hole, the lead spacing support member is retracted to the initial position by the surface of the circuit board, and the connector lead is inserted into the lead insertion hole of the circuit board. Connector installation method.

Holding means for detachably holding a connector having a large number of leads arranged at predetermined intervals and having lead interval supporting members mounted on the large number of leads and projecting tip portions of the leads, and the lead interval supporting member. And a connector in a state in which the lead interval support member is moved to the lead tips, the lead tips are inserted into the lead insertion holes of the circuit board in which a large number of lead insertion holes are formed at the predetermined intervals. An apparatus for attaching a connector to a circuit board, comprising: an insertion unit that brings the positions close to each other and inserts the lead into the lead insertion hole in that state.

The above-mentioned object of the invention can be achieved by and.

[0018]

According to the above-mentioned method of the present invention, since the lead interval support member supports the lead tips at the predetermined intervals in the row and column directions, the lead positions are protected so as not to change. Prior to inserting the lead tip into the lead insertion hole of the circuit board, push down the lead spacing support member until the lead tip is hidden, and then push the lead into the lead insertion hole to place the lead spacing support member on the circuit board surface. Since they are in contact, they are pushed back to the initial position and retracted.

Since the lead is inserted and moved in a continuous state of the hole of the lead interval support member and the hole of the circuit board, the lead is inserted and moved into the lead insertion hole of the circuit board without any difficulty, which is reliable. Easily inserted.

According to the gist of the constitution of the device of the present invention, the holding means for detachably holding the connector, the moving means for moving the lead interval support member to the tip of the lead, and the connector for connecting the lead to the lead device hole of the circuit board. Since it is provided with an inserting means for pushing in and driving them in a predetermined order, the connectors can be automatically and sequentially inserted into the circuit board without manpower.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of attaching a connector to a circuit board and the apparatus for attaching a connector of the present invention will be described in detail below with reference to the drawings based on specific embodiments with reference to the drawings.

FIG. 11B is a side sectional view of the connector according to the present invention. Since the connector according to the present invention is basically the same as that shown in FIGS. 10 and 11 (a), the same reference numerals are used in both figures. For the explanation, refer to what has already been explained.

According to the diagram (b) of FIG. 11, the lead is provided at the tip of the lead 4 with its tip protruding from the lower surface 21 of the lead spacing support member 20, that is, with the lower surface 5 and its lower surface 21 aligned. The spacing support member 20 is fitted and attached to the lead 4.

The lead spacing support member 20 is not attached to the row of the leads 4 close to the connector housing 2, but is attached only to the three rows having a long protruding length on the back side. Since the lower surface 21 of the lead-spacing support member 20 is thus aligned with the lower surface 5 of the connector 1, the upper surface is formed in a stepwise shape in accordance with the bending of the leads 4.

FIG. 12 shows the external appearance of the details of the lead spacing support member 20 alone. FIG. 12A is a side view,
The figure (b) is a top view. FIG. 7C is a front view, and FIG. 8D is a bottom view.

The lead-spacing support member 20 is a synthetic resin molded product, and the lead insertion holes 22 are formed in the row and column directions so as to be precisely aligned with the predetermined spacing corresponding to the rows and columns of the leads 4. It looks like a staircase in side view.

As is clear from FIG. 11B, the lead insertion hole 22 has a funnel-shaped opening 23 at the upper side. This makes it easy to receive the tips of the leads 4 during insertion. FIG. 11B is the same as FIG. 12C.
The DD cross section of the figure is shown.

The protrusions 24, 24 at the left and right ends are stepped portions 25 of the mounting leg 6 of the connector housing 2 (FIG. 11B).
Is a portion that is positioned so that the lead spacing support member 20 does not move upward.

Two ridge-shaped minute protrusions 2 on the lower surface 21
Reference numerals 7 and 27 are portions designed so that a small space is formed so that the lower surface 21 of the lead spacing support member 20 does not adhere to the circuit board 12.

Although the lead insertion hole 22 does not have an extra margin for the lead 4, it is set so as to be smoothly movable with respect to the lead 4. The front view of FIG. 1 and the plan view of FIG. 2 show a device for attaching a connector to a circuit board according to the present invention. Hereinafter, description will be given mainly with reference to FIG. In both figures, the upper half of the operating part is covered with a transparent plate, and a control device and the like are installed inside the lower half so that the inside can be seen through and dust is not caught.

This connector mounting device 30 is provided with a conveyor 31 for conveying the circuit board 12 in the left-right direction on the front side in FIG. 2, and a large number of connector supply conveyors 33 in the front-rear direction in four rows on the upper right side in the figure. It is provided in. Reference numeral 35 is a robot capable of moving the head portion 36 in the XY directions.

A portion located on the left-hand side conveyance path in the figure is a rivet caulking device 38 for fixing and fixing the connector 1 to the circuit board 12, and a rivet supply device 39 is provided on the upper side thereof.

A connector positioning device 40 is provided below the head portion 36. Reference numeral 42 is an operation panel portion of the connector mounting portion, and 44 is an operation panel portion of the rivet caulking portion. The configuration is as described above, and the operation of the connector attaching device 30 will be described below.

The circuit board 12, which has been conveyed from the right side to the left side of the conveyance path 31, has the stopper 4 protruding in the middle.
5 is stopped and stopped. Next, two circuit board positioning devices 47, 4 arranged and waiting on the side surface of the transfer path.
Positioning pins (neither of which is shown) are inserted into two reference holes 7 provided on the circuit board 12 to accurately set the positions.

The robot 35 moves the position of the head portion 36 in accordance with an instruction from the control device, holds the predetermined connector 12 from the tip of the connector supply conveyor, and moves the connector to the connector positioning device 40.
The posture and the position of (1) are set and held in a predetermined manner, and further moved to the connector mounting position of the circuit board 12. Head part 3
The connector 1 is inserted and attached at a predetermined position of the circuit board 12 by 6.

Circuit board 1 in which a connector is inserted and attached
2 is released from the stopper 45 and the circuit board positioning device 47, and is stopped by the transport conveyor 31 at the next position of the rivet caulking device 38 by the same means. Here, the connector 1 is caulked and fixed to the circuit board 12 by utilizing the mounting hole 7 with a rivet.

Thereafter, similarly, the circuit board 12 is opened and the connector mounting device 3 is operated by the transfer conveyor 31.
It is discharged from 0 and transferred to the next step. Details of attaching the connector 1 to the circuit board 12 will be described with reference to the drawings from FIG. 3 onward.

FIG. 3 is a side view showing the main part of the head section 36. Two independent lifting devices 51 and 52 are provided on the lower surface of the head portion 36, one of which is provided with a connector chuck hand 53 so as to be rotatable, and the other one of which is provided with a connector to suck the connector by vacuum pressure. Holding means 55 for holding, insertion means (connector pusher) 57 for positioning the connector and inserting it into the circuit board, and moving means (lead interval support member pusher) 59 for pushing down the lead interval support member, And are provided in the above order.

FIG. 4 shows a state in which a large number of connectors 1 are being supplied onto the connector supply conveyor 33. The leading connector 1 of this connector row is sandwiched and picked up from both sides of the connector housing 2 by the connector chuck hand 53.

The taken-up connector 1 is moved to the position of the connector positioning device 40 as shown in FIG. 5 (a), and the connector chuck hand 53 is rotated by 90 ° to be lifted to a horizontal state. After changing the posture, the elevating device 51 is lowered to move the connector positioning device 4
Place it on the 0 step.

The connector 1 is pressed and fixed to the stepped portion by the pressing device 61, the connector chal hand 53 is raised and retracted, and the next elevating device 52 is moved onto the connector 1.

As shown in FIG. 5B, the elevating device 52 is lowered and the holding means 55 is attached to the connector housing 2.
The projection 63 at the tip of the insertion means 57 shown in FIG. 5A is fitted into the attachment hole 7 of the attachment leg 6 of the connector, so that the connector 1 is attached to the head portion 36. Accurately positioned. Further, the insertion means 59 is located on the upper end portion on the back side of the lead spacing support member 20 (shown in FIG. 11B).

In this state, the inner pressure of the holding means 55 is set to a vacuum state to suck and hold the upper surface of the connector housing 2. As shown in the side view of FIG. 6, the head portion 36 is moved onto the circuit board 12 positioned on the conveyor 31 and the lead 4 of the connector is inserted into the lead insertion hole 11 of the circuit board to be attached. ..

FIG. 6 shows a state in which two connectors are attached to the circuit board 12, one on the right side is already attached, and the left side is shown immediately after being attached. The state in which this connector is attached to the circuit board will be described in detail with reference to FIG. 7 and subsequent figures.

First, referring to FIG. 7, (a) is a view seen from the back side, and (b) is a side view.
In FIG. 7, the connector 1 has the head portion 36 and the circuit board 12
The condition is shown set to the exact position where the upper connector should be attached.

The connector housing 2 is sucked and held at two places by the holding means 55, and the leading end portions of the leads 4 are aligned with the lead insertion holes 11 of the circuit board 12 and are stopped immediately above them. .. Of course,
The reference protrusion 8 is also located directly above the reference hole 65 of the circuit board.

The projections 63 at the tip of the insertion means 57 are fitted in the mounting holes 7 of the mounting legs 6 on both sides of the connector. The moving means 59 is located along the lead 4 at the uppermost end of the lead spacing support member 20 set to the initial position.

Next, referring to FIG. 8, which is similar to FIG. 7, (a) is a view seen from the back side, and (b) is a side view. The difference from FIG. 7 is that the moving means 5
It can be seen that 9 pushes down the lead spacing support member 20 in the direction of the arrow and presses it against the circuit board 12.

By moving the lead spacing support member 20 to the tip of the lead 4 in this manner, the lead insertion hole 22 in the lead spacing support member and the lead insertion hole 11 of the circuit board 12 are communicated in a straight line. The state is formed.

In this state, the holding means 55 sucks and holds it to keep the posture stable, and the inserting means 57 pushes down the connector 1 vertically while interlocking the posture. All the leads 4 are moved from the lead insertion holes 22 of the lead spacing support member 20 to the lead insertion holes 11 of the circuit board 12 without any resistance or stress.

As a result, the lower surface 5 of the connector 1 is brought into contact with the upper surface of the circuit board 12, and the reference protrusion 8 is fitted and positioned in the reference hole 65 of the circuit board. As a result, the lead spacing support member 20 is raised and retracted to the first initial position (state of FIG. 7) on the lead 4. Of course, the connector mounting hole of the circuit board and the mounting hole 7 of the connector 1 are aligned.

The state where the connector is attached to the circuit board as described above is shown in the rear view (a) and side view (b) of FIG. In this way, the circuit board with the connector attached is opened and conveyed to the next step, and the connector is fixedly attached to the circuit board by the automatic rivet caulking device.

After that, various electric parts and elements are mounted on the circuit board 12 and soldered and connected. In these steps, the leads 4 of the connector are also soldered and connected to the circuit pattern.

[0054]

As described above in detail, according to the connector mounting method and the connector mounting apparatus for the circuit board according to the present invention, the lead insertion hole of the lead spacing support member supporting the leads at the predetermined spacing position is provided. Since the lead insertion hole of the circuit board is made to communicate with each other and the lead is inserted so as to be inserted to attach the connector to the circuit board, the lead can be accurately and surely inserted and attached to the circuit board. The lead can be inserted regardless of the presence of a lead whose position is offset.

It is possible to manually attach the connector to the circuit board by moving the lead spacing support member to the tip of the lead and making the tip of the lead project to a very small extent. In this case, the tip of the lead is the lead. Since the position is defined by the spacing support member, the mounting work can be easily performed.

According to the present invention, the mounting time of the connector is shortened and the mounting is easy without requiring any skill. When it is applied to a mounting device, it can be fully automated, and its practical effect is extremely remarkable.

[Brief description of drawings]

FIG. 1 is a front view of a connector mounting device according to the present invention.

FIG. 2 is a plan view of a connector mounting device according to the present invention.

FIG. 3 is a side view of a main part of a head part.

[Fig. 4] State taken out from the connector supply conveyor

FIG. 5: Description of positioning the connector and holding it on the head

FIG. 6 shows a state in which a connector held by a head is attached to a circuit board.

FIG. 7: Description of the state where the connector is attached to the circuit board (No. 1)

FIG. 8: Explanation of the state where the connector is attached to the circuit board (Part 2)

FIG. 9 is an explanation of a state where the connector is attached to the circuit board (No. 3).

[Figure 10] External view of the connector

FIG. 11 is a side sectional view of the connector.

FIG. 12 Appearance of lead spacing support member

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 connector 2 connector housing 3 contact piece 4 lead 5 lower surface 6 mounting leg 7 mounting hole 8 reference protrusion 9 hole 11 lead insertion hole 12 circuit board 20 lead spacing support member 21 lower surface 22 lead insertion hole 23 opening 24 protrusion 25 step 27 protrusion Article 30 Connector mounting device 31 Conveyor conveyor 33 Connector supply conveyor 35 Robot 36 Head part 38 Rivet caulking device 39 Rivet supplying device 40 Connector positioning device 42 Connector mounting part operating panel 44 Rivet caulking part operating panel 45 Stopper 47 Circuit board positioning device 51, 52 Lifting device 53 Connector chuck hand 55 Holding means 57 Inserting means 59 Moving means 61 Pressing device 63 Protrusion 65 Reference hole

Claims (2)

[Claims] 1. A connector (1) having a plurality of leads (4) at a predetermined interval and having a lead-spacing support member (20) mounted on the plurality of leads and projecting tip portions of the leads.
The lead end of the circuit board (12) in which the lead spacing support member (20) is moved to the tip of the lead (4) and a large number of lead insertion holes (11) are formed at the predetermined intervals. The lead end of the lead (4) is brought closer to, and then the lead end is inserted into the lead insertion hole (11) so that the lead interval support member (20) is retracted to the initial position by the surface of the circuit board (12). The connector lead (4) to the circuit board lead insertion hole (1
1) A method for attaching a connector to a circuit board, characterized in that the connector is attached to the circuit board. 2. A connector (1) having a plurality of leads (4) at predetermined intervals and having a lead-spacing support member (20) mounted on the plurality of leads and projecting tip portions of the leads.
Holding means (55) for detachably holding the lead spacing member, moving means (59) for moving the lead spacing support member (20) to the tip of the lead (4), and the lead spacing support member (20) for the lead (4). A circuit board (12) having a large number of lead insertion holes (11) formed at the above-mentioned predetermined intervals on the connector (1) moved to the tip.
A circuit characterized by including an insertion means (57) for bringing the lead (4) tip position close to the lead insertion hole and inserting the lead (4) into the lead insertion hole (11) in that state. A device for mounting a connector on a board.