JPS6015997A - Terminal bent correcting device - 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 The present invention relates to a terminal surface straightening device for correcting bending and misalignment of the tips of a plurality of terminals of an electronic component.

Structure of conventional example and its problems The conventional method for correcting bent terminals of electronic components is as shown in Figure 1. In the case of electronic component 1 with a small number of terminals, the terminals are held between chucks 2 and static pressure is applied. A method was used to correct the bending of the terminal by adding This method is somewhat effective in the case of electronic components with a limited number of terminals, but (1) Since the terminals are straightened using static pressure, the straightening ability is affected by the springs and tension of the terminals. (2) The method shown in FIG. 1 cannot be used in the case of electronic components with a large number of adjacent terminals. As shown in FIG. 3, in the case of an electronic component 3 having a large number of terminals and adjacent to each other, the eccentric cylindrical hole 4
A device has been proposed in which a cylindrical shaft 5 having a cylindrical shaft 5 is rotated and lowered over a bent terminal to correct the bending of the terminal by utilizing the eccentric rotational movement of the cylindrical hole 4. However, this mechanism has a problem in that because the number of terminals that can be straightened at one time is limited due to its structure, it is not possible to straighten all the bent terminals of an electronic component that has a plurality of adjacent terminals at the same time.

Therefore, in the case of automatic insertion of electronic components with multiple terminals onto a board, the reliability of insertion depends on management to prevent bending of multiple terminals during the manufacturing process of electronic components. there were.

OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned conventional drawbacks and improves the reliability of automatic insertion of electronic components having a plurality of terminals onto a printed circuit board.

Structure of the Invention The present invention provides an apparatus for simultaneously correcting the bending and misalignment of the tips of multiple terminals of an electronic component having a plurality of cylindrical terminals. The present invention is comprised of a straightening plate having a plurality of cylindrical terminals, and a hanging mechanism that eccentrically rotates the straightening plate in a direction perpendicular to the terminals, and improves the reliability and certainty of automatic insertion of an electronic component having a plurality of cylindrical terminals onto a printed circuit board. Description of Embodiment An embodiment of the present invention in the case of an electronic component 3 will be described below with reference to FIGS. 3 to 5. 6 is a correction plate, 6 is a plate, and 7a, 7b, sa, and sb are a pair of slide blocks that move linearly relative to each other. The correction plate 5 has
Correcting holes 9 larger than the outer diameter of the terminals of the electronic component 3 are formed by the number of terminals, and the terminals are inserted into these holes when correcting the terminals. The correction plate 5 is fastened to the plate 6 with bolts. Two pairs of slide blocks 7a.

7b, 8a, and 8b are in such a form that their respective movement directions are perpendicular to each other,
7b and 8a are fixed, and the upper 7a is the plate 6
is fixed. 1Q is an eccentricity adjustment block, 11 is an eccentricity adjustment shaft, and lever 11. They are connected in link form via bins 12. Below the uneven hair/amount adjustment block 11 is the shaft 14. The lower portions 16 of a pair of slide blocks 16a and 16b are rotatably connected to the plate 6 via bearings 15 and move linearly upward.
It is fixed at b. A hollow rotating shaft 17 is fixed to the upper slide block 16a, and the outer side of the rotating shaft 17 is connected to the housing 19 via a bearing 18.
It is supported by a rotating circle.

An eccentricity adjustment shaft 11 is slidably provided inside the rotation shaft 17 via a bush 2o. )1
When there is no relative positional deviation between the pair of slides O, 7, 16a and 16b, the axis of the eccentricity adjusting shaft 11 and the axis of the shaft 14 are aligned; however, when the eccentricity adjusting shaft 11 is slid up and down, A pair of slide blocks 16a,
16b is displaced, and as a result, the axis of the shaft 14 is eccentric from the axis of the eccentricity adjusting shaft 1o. A spur gear 21 is fixed to the upper part of the rotating shaft 17, and the motor 220 rotates or the gear head 23
: Spur gear 2 fixed to the tip of the tr and gear head 23
4 to the rotating shaft 17. A stopper 25 is fixed to the upper part of the eccentricity adjustment shaft 11, and a spring 26 is provided between the stopper 25 and the eccentricity/gain adjustment shaft 170.

When the spring 26 is at its maximum elongation, that is, when the eccentricity adjustment/yaft 11 is at the upper point of Ji, the eccentricity adjustment shaft 1
The eccentricity between the shaft 11 and the shaft 14 is 0, and by applying an external force and pushing down the eccentricity adjusting shaft 11, the axial center of the shaft 14 is deflected. Upper plate 2
7. The intermediate plate 28 and the main body plate 29 each include a gear head 23, a housing 19, and a lower part 8 of the slide block.
b is fixed and connected to the stay 30.3j.

The operation of the terminal surface straightening device constructed as described above will be explained below. The rotation of the motor 22 is controlled by a gear head 23. It is transmitted to the plate 6 via the spur gears 24 and 21, the rotating shaft 17, the slide blocks 16a and 16b1, the eccentricity adjusting block 10, and the shaft 14.

At this time, if the rotation center of the rotation/yaft 17, that is, the axis of the eccentricity adjustment shaft 11 and the axis of the seventh shaft 14 are aligned, the shaft 14 and the plate 6 are connected in rotational circularity. Therefore, the plate 6 does not rotate due to the 220 rotations of the motor.

The above-mentioned state is a case where the eccentricity adjustment shaft is at the highest point. Next, by applying a downward external force to the eccentricity adjustment shaft 11, it is caused to slide downward.
The axis of the shaft 14 is eccentric from the axis of the eccentricity adjustment shaft 11, so that the plate 6 connected to the shaft 14 through a bearing performs an eccentric rotational movement. This eccentric rotational movement is
Two sets of slide blocks 7a, 7b and 8a are connected such that the movement directions to which the plate 6 is fixed are perpendicular to each other.

8b, this is achieved by decomposing the rotational component into two components of 90 degrees in the vertical and horizontal directions. At this time, the correction hole 9 of the correction plate 5 fixed to the plate 6 also performs an eccentric rotational movement.

Figure 6 depicts its trajectory. By eccentrically rotating the straightening hole 9, a space with a diameter A smaller than the diameter of the straightening IE hole is created inside. Therefore, the bending of the terminal of an electronic component is caused by the eccentric rotational movement of the correction hole 9, which causes the terminal to repeatedly rotate and move along the end surface of the correction hole 9, resulting in a change in diameter A.
is corrected within the space of That is, when the eccentricity of the eccentricity adjusting shaft 11 and the shaft 14 is 0, the terminal 3 is moved through the correction hole 9 so that the center of the correction hole 9 coincides with the center of the terminal when the bending of the terminal of the electronic component 3 is 0. After the electronic component 3 is fixed in the inserted state, the eccentricity adjustment shaft is pushed down to cause the correction hole 9 to perform an eccentric rotational movement. With this device, it is possible to straighten all the bends in multiple terminals of the electronic component 3 at the same time through this operation.The device takes into account the spring back force of the terminals, and then adjusts the eccentricity to the optimum amount, that is, the optimum amount of eccentricity. By setting the amount by which the eccentricity adjustment shaft 11 is pushed down, it is possible to make the total number of terminals of the electronic component 3 O. In the embodiment, the number of electronic components to be corrected is 3, but it goes without saying that the electronic component 3 may be replaced by the electronic component 1. Effects of the Invention As described above, the present invention has the advantage of correcting the same number of terminals as the terminals of the electronic component. By eccentrically rotating a straightening plate having holes, it is possible to straighten all the bends in a plurality of terminals at the same time, and the effect is excellent.

[Brief explanation of drawings]

Figure 1a is a perspective view of an electronic component with a small number of terminals, Figure 1 is an explanatory diagram of a conventional example showing a method for correcting photon bending of the same electronic component, and Figure 2a is an electronic component with a plurality of adjacent terminals. 2 is an explanatory diagram of a conventional example showing a method of correcting bent terminals of the same electronic component, FIG. 3a is a diagram illustrating the principle of correcting bent terminals in an embodiment of the present invention, and FIG. 5 0 is an explanatory diagram showing the corrected state of the terminal. 0 3...Electronic component, 5... Straightening plate, 9...
・Correction hole. Name of agent Patent attorney Toshio Nakao and 1 other person 51 Figure 1 (Shiri 1 2 Figure 2 (al [)) Figure 3 4 Figure 7o, 'Ib bo-6b Figure 5

Claims (1)

[Claims] In an apparatus for simultaneously correcting bending of a plurality of terminals and misalignment of a terminal tip of an electronic component having a plurality of terminals,
A straightening plate having a straightening hole larger than the outer diameter of the terminal into which a plurality of terminals can be inserted simultaneously, and means capable of eccentrically rotating the straightening plate in a direction perpendicular to the terminals. Device.