JPH0216600B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electronic component insertion device that automatically inserts electronic components into a printed circuit board.

Conventional configurations and their problems When inserting conventional electronic components, especially power transistors, the shape of the component is difficult to scratch, and in order to fix the component itself to the printed circuit board, after insertion, the parts attached to the component are The process requires press-fitting the nylon fastener, which is difficult to insert automatically, and all insertion and press-fitting is done manually by the operator, resulting in slow insertion tact per power transistor and high product failure rate. It was hot.

OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks and automatically inserts a power transistor into a printed circuit board, which has conventionally been impossible. It can be shortened to a large extent and improves product quality and reliability.

Composition of the Invention The present invention includes a guide pin that descends from above a positioned electronic component and guides a nylon fastener for fixing the electronic component into it, and a guide pin that, after descending, checks the body of the electronic component from the side. A pair of body chucks, a lead chuck that positions and guides the electronic component lead wire after chucking the body part, and a press-fitting part that press-fits a fastener to fix the electronic component to the printed circuit board after the electronic component is inserted into the printed circuit board. , an upper head main body that holds the guide pin, body chuck, lead chuck, and press-fitting part and moves horizontally and vertically; and a fastener that inserts the fastener into the printed circuit board while splintering the fastener when inserting the electronic component into the printed circuit board. a centering pin inserted into the hole; a pair of clinch claws that clinch the lead wires after inserting the electronic component into the printed circuit board; a board holder that receives the bottom surface of the printed circuit board when inserting the electronic component and press-fitting the fastener; It consists of a centering pin, a clinch claw, and a lower head body that holds the board holder and moves horizontally and vertically.It speeds up the insertion tact of electronic components onto printed circuit boards, and improves product quality and reliability. This is extremely advantageous.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 9. In the figure, 1 is a guide pin that guides the nylon fastener that fixes the power transistor to the printed circuit board, 2 is a guide pin receiver that is attached to the cylinder block 3 and holds the guide pin 1, and 4 is a guide pin that presses the guide pin 1 to the guide pin receiver 2. It is a compression spring. 5 is a body chuck that is attached to the lever 6 and checks the body of the power transistor 7; 8 is a fulcrum pin that holds the lever 6 and serves as a fulcrum for the rotation of the lever 6; 9 is attached to the lever 6 by a pin 10, and has a compression spring 1;
1 is a roller pressed against the wedge portion at the tip of the piston 12, and 13 is a lid of a cylinder portion that houses the piston 12 of the cylinder block 3.

14 is a rod that is attached to the lid 13 and moves the cylinder block 3 up and down by pushing it from above; 15 is an air intake port for driving the piston 12 machined in the cylinder block 3; 1
6 is a compression spring that presses the piston 12 against the lid 13; 17 is a lead chuck that is attached to the block 18 and guides the three lead wires of the power transistor in position; 19 is the block 18;
It is a fulcrum pin that holds the 20 is a stopper that determines the position of the tip of the lead chuck; 21 is a compression spring that presses the lever portion of the block 19 against the stopper 20; 22 is driven by air introduced from the air intake port 24 of the lid 23;
8 is a piston that opens and closes the lead chuck 17, and 25 is a compression spring that presses the piston 22 against the lid 23.

26 is a press-fit pin that is attached to the press-fit piston 27 and press-fits the nylon fastener of the power transistor; 28 is a lid having an air intake port 29; 30 is a compression spring that presses the piston 27 against the lid 28; 31 is a sensor that detects the vertical movement of the piston 27. This is a light emitting/receiving type photoelectric switch.

32 is an upper head main body that holds the cylinder block 3 and has a cylinder portion that houses the pistons 22 and 27, and is attached to a moving block 34 that moves in the X direction, Y direction, and up and down directions via a joint 33. , 35 is a compression spring that presses the cylinder block 3 against the upper head body 32;
36 is a centering pin that centers the nylon fastener and inserts it into the insertion hole when inserting the power transistor into the printed circuit board. 37
is a guide block that guides the centering pin 36, 38 is a compression spring that presses the centering pin 36 against the guide block 37, 39 is a clinch claw that clinches the three lead wires after inserting the power transistor, and 40 is a clinch claw that attaches to the left and right sides. Slider that moves in the direction, 41 is rod 4
This lever converts the vertical movement of the slider 2 into the horizontal movement of the slider 40.

43 and 44 are joint pins, 45 is rod 4
A compression spring 46 presses the lower head body 48 downward, which holds the guide block 37, slider 40, and rod 42, and is attached to the moving block 47 that moves in the X direction, Y direction, and up and down directions.
49 is a strain gauge attached to the clinch claw 39 to detect whether the lead wire is clinched; and 49 is a light emitting/receiving type photoelectric switch 51 attached to the guide block 37 via a bracket 50 to detect whether the nylon fastener has been inserted. A printed circuit board, 52 is a nylon fastener, and 53 is a printed circuit board holder.

In the above configuration, the moving block 34 and the upper head main body 32 are moved above the positioned power transistor, lowered after the movement, the nylon fastener 52 is inserted into the guide pin 2, and after lowered, the air intake port 15 is moved. Inject air to drive the piston 12, close the body chuck 5 via the roller 9 and lever 6, and check the body of the power transistor 7. Next, inject air from the air intake port 15, and drive the piston 2.
2 is driven, block 18 is pushed, lead chuck 17 is closed, and the three lead wires of the power transistor are positioned and guided to complete the chuck operation.

After the check operation is completed, the power transistor 7
While checking, raise the moving block 34 and the upper head main body 32 and move them to the power transistor insertion position on the printed circuit board. After the movement is completed, move the moving block 33 and the upper head main body 32 so that the tip end surface of the lead chuck 17 is printed. Board 5
Lower it until it touches 1. At this time, the tip of the lead wire of the power transistor 7 and the tip of the nylon fastener 52 are inserted into the insertion hole of the printed circuit board 51. After that, push the rod 14 to lower the cylinder block 3 and complete the insertion of the power transistor into the printed circuit board.

At this time, the moving block 47 and the lower head main body 46
is located at the lower insertion position of the printed circuit board 51,
Before the upper head main body 32 descends, it rises, inserts the guide pin 36 into the nylon fastener insertion hole of the printed circuit board 51, waits for the lower surface of the printed circuit board 51 to be received by the board receiver 53, and then attaches the power transistor 7 to the printed circuit board 51. When inserting, center the nylon fastener 52 using the centering pin 36 to complete the insertion of the power transistor 7, then push the rod 42 upwards and use the clinch claw 39 via the lever 41 and slider 40 to remove the printed circuit board 51. After clinching the three lead wires of the power transistor coming out from the bottom and checking whether they are clinched using the strain gauge 48, enter air from the air intake port 29 to drive the press-fit piston 27 and press-fit the nylon fastener 52 using the press-fit pin 26. do. At this time, press-fitting of the nylon fastener 52 and insertion of the nylon fastener 52 are confirmed using the light emitting/receiving type photoelectric switches 31 and 49.

This completes the insertion of the power transistor 7 into the printed circuit board 51 and the press-fitting of the nylon fastener 52. After completion, the rod 4 is
2. Open the clinch claw 39 via the lever 41 and slider 40, and lower the moving block 47 and lower head main body 46. Also, the air supply is stopped, the body chuck 5 is opened by the force of the compression springs 11 and 16, the lead chuck 17 is opened by the force of the compression springs 21 and 25, the press-fit pin 26 is raised by the force of the compression spring 30, and the compression spring 35 is opened. The cylinder block 3 is raised by the force of , the moving block 34 and the upper head main body 32 are raised and moved to the upper part of the positioned and supplied power transistor, and the insertion operation is repeated in the same manner.

Effects of the Invention As described above, the present invention is capable of automatically chucking and inserting a power transistor, press-fitting a nylon fastener, detecting clinching of a lead wire, inserting a nylon fastener, and detecting a press-fit. There are some extremely advantageous methods for speeding up the insertion tact and improving product quality and reliability.

[Brief explanation of drawings]

Figure 1 is a perspective view of a power transistor, Figure 2 is a perspective view of a power transistor.
The figures are a perspective view of the tip of the upper head of an electronic component insertion device according to an embodiment of the present invention, FIG. 3 is a front view of the same, FIG. 4 is a side view of the same, FIG. 5 is a full sectional view of the same, and FIG. 7 is a front view of the lower head, FIG. 8 is a side view, and FIG. 9 is a sectional view of the body chuck drive section.
The figure is a full sectional view of the same. 1...Guide pin, 5...Body chuck, 7
... Power transistor, 17 ... Lead chuck, 26 ... Press-fit pin, 27 ... Press-fit piston, 32 ... Upper head body, 36 ... Centering pin, 39 ... Clinch claw, 46 ... Lower head main body, 51 ... ...Printed circuit board, 52...nylon fastener, 53...board holder.

Claims (1)

[Claims] 1. A guide pin that descends from above a positioned electronic component and guides a fastener for fixing the electronic component and inserts it inside; a pair of body chucks that check the body of the electronic component from the side after descending; a lead chuck that positions and guides the lead wire of the electronic component after the electronic component has been chucked; a press-fitting portion that press-fits a fastener to fix the electronic component to the printed circuit board after the electronic component is inserted into the printed circuit board; and the guide pin and body chuck. , a lead chuck, an upper head body that holds the press-fit part and moves horizontally and vertically; a centering pin that inserts into the fastener insertion hole of the printed circuit board while centering the fastener when inserting electronic components into the printed circuit board; A pair of clinch claws that clinch the lead wires after inserting the transistor into the printed circuit board, a board holder that receives the bottom surface of the printed board when inserting electronic components and press-fitting fasteners, and the centering pin, clinch claw, and board holder. An electronic component insertion device consisting of a lower head body that holds the head and moves horizontally and vertically.