JPS63224400A - Electric parts fixing equipment - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a lead wire fixing device for fixing electrical components inserted into a printed circuit board in an automatic electrical component insertion device.

Conventional technology In recent years, automatic electrical component insertion devices have become widely used with the development of the electronics market, and the lead wire fixing device, which is one of the component units, has also come in various forms. .

The lead wire detection portion of the conventional lead wire fixing device was as shown in FIG. 6, as shown in Japanese Patent Publication No. 49793 of 1986. That is, in order to fix the electrical component 21 inserted into the printed circuit board 20, the fulcrum 22a,
The molded part 23a is centered around 22b.

23b rotates and oscillates toward the center of the electrical component body to form a bend, and the molded portions 23a, 23b are provided with lead wire detection elements 24a, 24b, 25a, and 2sb. The structure in which this molding part has a lead wire detection element is a cut/bend method that cuts and bends the lead wire.
It has also been applied directly to the and-clinch type lead wire fixing device.

That is, in FIG. 6, when the movable blade 28 and the fixed blade 29 cut and bend the lead wire, the movable blade 28
Fixation of the lead wire is detected by a lead wire detection element 31 held by a drive lever 30 that advances the lead wire.

Problems to be Solved by the Invention However, with the above configuration, the lead wire has a length sufficient to cut the lead from the insertion hole as shown in FIG. If the positional relationship between the insertion hole and the fixing device is misaligned as in In this case, the lead wire detection element will also detect the insertion.

Means for Solving the Problems In order to solve the above-mentioned problems, the electrical component fixing device of the present invention has the cutting edge of the fixed blade positioned outside the center of the electrical component main body of the insertion hole into which the electrical component is inserted and printed. The movable blade is disposed on the operating locus of a movable blade that can move forward and backward diagonally with respect to the substrate, and the fixed blade has a lead wire detection element.

Function The present invention creates a state in which the desired bending is always achieved when insertion is detected by the above-described configuration. In other words, by providing a lead wire detection element to the fixed blade that only works when cutting, it is possible to detect whether or not the lead wire has been cut, and if cutting is performed in accordance with the positional relationship between the insertion hole and the fixed blade, bending is also possible. It creates a situation where things are being done as expected.

Embodiment Hereinafter, an electrical component fixing device according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a positional relationship diagram of fixing parts of an electrical component fixing device in an embodiment of the present invention. In FIG. 1, 1 is an electric component, 2 is a printed circuit board, and 3 is a movable blade which can freely move forward and backward on a fixed blade diagonally with respect to the printed circuit board 2. Reference numeral 4 denotes a fixed blade whose cutting edge is located on the movement locus of the movable blade 3 and outside the center of the main body of the electrical component 1 in the insertion hole of the printed circuit board 2. The fixed blade 4 also has a lead wire detection element 6 on its back surface.

FIG. 2 is an overall view of an electrical component fixing device according to an embodiment of the present invention. Reference numeral 6 denotes a drive lever, the upper end of which is inserted into a hole in the movable blade 3, and is rotatably attached to the block 8 via a fulcrum pin 7. The block 8 supports the fixed blade 4 on its upper surface, and holds a roller 10 with its rotation center around a pin 9 at one end at its lower part, and is rotatably attached to the other end by a pin 11. It has a swinging lever 12. Furthermore, block 8 is
A female thread is cut in the central part of the recess, and it is held in the main body 14 by one end of a feed screw 13 that passes through the threaded part. Further, the feed screw 13 has threads cut in opposite directions in the left and right directions from the center portion. The above-mentioned movable blade 3, fixed blade 4, drive lever 6, fulcrum pin 7,
The block 8, pin 9, roller 10, pin 11, and swing lever 12 form a small unit 16 of this device. It is supported by the main body 14 by the section.

A push-up rod 17, which is supported by a lower unit (not shown) having a driving source, is visible at the bottom of the main body 14 so as to be movable in a direction perpendicular to the printed circuit board.

The operation of the embodiment configured as described above will be explained below using FIGS. 1 to 3. FIG. 1 shows the positional relationship between the movable blade 3 and the fixed blade 4 when the electric component 1 is inserted into the printed circuit board 2. Next, the push-up rod 17 is raised by the drive source and pushes up the roller 1°. The swing lever 12 rotates around the pin 11, and at the same time, the drive lever 6 is rotated around the fulcrum pin 7 by the roller 1o. Movable blade 3
Since the drive lever 6 and the drive lever 6 are connected, the blade moves forward on the fixed blade 4. FIG. 3 is a diagram immediately before cutting the lead wire of the electrical component. As the movable blade 3 moves forward, the wire is moved to the fixed blade 4.
Due to the positional relationship between the insertion hole of the printed circuit board 2 and the cutting edge of the fixed blade 4, the lead wire has already been bent toward the center of the electrical component 1, and the cutting is completed. Also, as shown in FIG. 4, the bending process proceeds as it is. Further, since the lead wire detection element 6 is attached to the fixed blade 4, it is detected only when the lead wire is cut.

Effects of the Invention As described above, the present invention has a movable blade that faces diagonally to a printed circuit board and can move forward and backward, and a center of the electrical component body of the insertion hole into which the electrical component is inserted, which is on the movement locus of the movable blade. The fixed blade has a cutting edge located on the outside of the blade, and the fixed blade has a lead wire detection element. The bending of the lead wire can be reliably achieved, and
By detecting the wire cutting, it can be determined that the bending process has been performed correctly.

[Brief explanation of drawings]

Fig. 1 is an enlarged cross-sectional view of the main parts of an electrical component fixing device according to an embodiment of the present invention, Fig. 2 is a sectional view of the electrical component fixing device according to an embodiment of the present invention, and Fig. 3 is a lead wire cutting. FIG. 4 is an enlarged sectional view of the same main part when the lead wire is cut and bent, and FIGS. 6(a) and 6(b) are sectional views of the main part of the conventional fixing device. Figure 6 is an enlarged sectional view of the same essential part of the part that acts on fixing, Figure 7 (a), Φ) is an enlarged sectional view of the same essential part when detecting incorrect insertion, and Figure 8 (a), (b). is an enlarged sectional view of the same main part when detecting another erroneous insertion. 1... Electrical parts, 2... Printed circuit board, 3... Movable blade, 4... Fixed blade, 5...
...Lead wire detection element, 6...Driving lever.

Claims (3)

[Claims] (1) A movable blade that faces diagonally to the printed circuit board and can freely move forward and backward, and a cutting edge that is located on the movement locus of the movable blade and outside the center of the electrical component body of the insertion hole into which the electrical component is inserted. 1. A device for fixing an electrical component, comprising a fixed blade arranged therein, the fixed blade having a lead wire detection element. (2) The fixed blade is supported by a block that has a rotation center of a drive lever connected to the movable blade, and the block also has a rotation center of a swing lever that has a roller at its tip, and the block has a rotation center of a swing lever that has a roller at its tip. 2. The electrical component fixing device according to claim 1, wherein said drive lever is in a contact position. (3) The blocks are arranged in pairs symmetrically on the left and right, and the blocks can be freely moved toward and away from the center by passing feed screws having opposing screw directions from the center to the left and right. An electrical component fixing device according to claim 2.