JP3627483B2 - Automatic insertion device for electronic components - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic component automatic insertion apparatus for automatically inserting an electronic component into a circuit board used in various electronic devices.
[0002]
[Prior art]
In recent years, assembling of printed circuit boards constituting circuits of various electronic devices has been put to practical use by an automated apparatus even for chip parts without lead wires and electronic parts having lead wires.
[0003]
At present, as electronic parts having lead wires that are often used, two lead wires 2 are drawn from the electronic part 1 as shown in FIGS. 5A to 5D, and two lead wires 2 are used. Are provided with three lead wires 2 and a plurality of lead wires 2.
[0004]
A basic configuration of such an electronic component automatic insertion apparatus is disclosed in Japanese Patent Laid-Open No. 63-3492, and FIG. 6 is an external view of the apparatus. A circuit board 3 is fixed to the center of the apparatus. Thus, the electronic component is automatically incorporated into the circuit board 3.
[0005]
FIG. 7 shows the structure of the main part of the electronic component automatic inserting apparatus. In FIG. 7, reference numeral 4 denotes a lever rotatably supported by a shaft 5, and this lever 4 is attached to an intermediate part. The cam 7 with which the cam follower 6 is in contact with the cam follower 6 rotates so as to swing, and a cam follower 8 is engaged with a guide 9 at the tip of the lever 4.
[0006]
A cylindrical insertion pusher rod 10 is coupled to the guide 9, and an insertion pusher 11 is attached below the insertion pusher rod 10 so as to be slidable in the vertical direction.
[0007]
Reference numeral 3 denotes a circuit board, which is positioned by board guides 13a and 13b. Below this circuit board 3, there is disposed a lever 16 rotatably supported by a shaft 14 and having a cam follower 15 attached to an intermediate portion. The lever 16 swings when the cam 17 with which the cam follower 15 abuts is rotated, and a cam follower 18 is attached to the tip of the lever 16 and engaged with a guide 19.
[0008]
A guide pin rod 20 is coupled above the guide 19, and a lead wire guide pin 21 is provided at the tip of the guide pin rod 20. The lead wire guide pin 21 is a guide provided on the lead wire guide pin guide 22. The hole 23 is positioned so as to penetrate the lead wire insertion hole 24 of the circuit board 3 so as to protrude from the upper surface of the circuit board 3.
[0009]
Further, as shown in FIGS. 8A and 8B, a concave portion 25 for holding the lead wire 2 of the electronic component 1 is provided at the tip of the lead wire guide pin 21.
[0010]
Also, a funnel-shaped guide hole 26 is provided above and below the circuit board 3, and a lead wire guide plate 27 that can be opened and closed to the left and right is provided so as to divide the guide hole 26 into two. An insertion chuck 30 for supplying the electronic component 1 via the transfer chuck 29 is provided above the component supply unit 28 on which the plurality of electronic components 1 are mounted.
[0011]
When the electronic component 1 is supplied to the upper part of the lead wire guide plate 27 with the lead wire 2 facing downward by the insertion chuck 30, the conventional electronic component automatic insertion device configured as described above is rotated by the cam 7. The lever 4 swings around the shaft 5 to lower the insertion pusher rod 10, and at the same time, the rotation of the cam 17 causes the lever 16 to swing about the shaft 14 as the fulcrum and the guide pin rod 20 rises. The tip of the wire guide pin 21 passes through the lead wire insertion hole 24 of the circuit board 3 and is inserted into the guide hole 26 of the lead wire guide plate 27 and positioned.
[0012]
Next, the insertion chuck 30 is lowered, and the tip of the lead wire 2 of the electronic component 1 is fitted into the recess 25 at the tip of the lead wire guide pin 21. In this state, the insertion pusher 11 is lowered and the tip 35 of the insertion pusher 11 is moved. The upper part of the electronic component 1 is pressed to hold the electronic component 1.
[0013]
Next, the lead wire guide plate 27 is separated into right and left, the electronic component 1 is moved downward while the tip 35 of the insertion pusher 11 and the lead wire guide pin 21 are sandwiched, and the lead wire 2 of the electronic component 1 is moved to the circuit board 3. The lead wire was inserted into the lead wire insertion hole 24.
[0014]
[Problems to be solved by the invention]
In the conventional electronic component insertion apparatus, as shown in FIG. 9, the insertion pusher rod 10 and the insertion pusher 11 are engaged with each other by providing the insertion pusher rod 10 with a long hole 32 and further providing the insertion pusher 11 with a hole 33. In a state where the insertion pusher 11 is fitted in the insertion pusher rod 10, the spring pin 34 is inserted into the hole 33 of the insertion pusher 11 through the elongated hole 32 and fixed by the spring force of the spring pin 34. Further, the downward push of the insertion pusher 11 is performed by supplying air into the insertion pusher rod 10.
[0015]
However, in the above-described conventional electronic component insertion device, the spring pin 34 swings in the long hole 32 every time the tip 35 of the insertion pusher 11 presses the upper portion of the electronic component 1, and the larger the electronic component 1 oscillates. The spring pin 34 has a problem that it is removed from the insertion pusher 11.
[0016]
Further, since the tip 35 of the insertion pusher 11 is thin, a large force is applied when the electronic component 1 fails to be held, and the tip 35 may be bent.
[0017]
Further, in order to press the upper part of the electronic component 1 held by the insertion chuck 30, the tip 35 of the insertion pusher 11 contacts the upper part of the electronic component 1. At this time, an impact force proportional to the mass of the insertion pusher 11 is applied. The electronic component 1 is transmitted to the electronic component 1 and is damaged by the impact force, or the holding surface by the insertion chuck 30 is small, and the position of the electronic component 1 of the insertion chuck 30 is shifted due to the impact force.
[0018]
The present invention solves such a conventional problem, and can automatically insert electronic components regardless of the size of the electronic components to be inserted and can be continuously inserted at a high speed without giving a large impact to the electronic components. An object of the present invention is to provide an insertion device.
[0019]
[Means for Solving the Problems]
In order to solve this problem, the present invention is provided with a cylindrical insertion pusher rod that can be raised and lowered with a notch groove below, and an engaging projection that fits into the notch groove provided on the insertion pusher rod. The pusher is assembled in an insertion pusher rod so as to be able to move up and down while being urged downward, and an insertion pusher having a contact member that contacts the upper part of the electronic component at the tip.
[0020]
According to the present invention, regardless of the size of the electronic component to be inserted, the equipment can be operated continuously, and the impact force on the electronic component can be reduced to improve the insertion quality and improve the productivity. it can.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, there is provided an electronic component automatic insertion device for holding an electronic component having a lead wire and mounting the electronic component on a circuit board in a state where the upper portion of the electronic component is pressed by a pressing mechanism. In a state where the mechanism is provided with a cylindrical insertion pusher rod that can be raised and lowered with a notch groove on the lower side, and an engaging projection that fits into the notch groove provided on the insertion pusher rod and is biased downward. An electronic component automatic insertion device comprising an insertion pusher that is incorporated in an insertion pusher rod so as to be movable up and down and that has a contact member that contacts the top of the electronic component at the tip, and the size of the electronic component to be inserted is large The swinging stroke of the insertion pusher rod and the insertion pusher also increases, eliminating the conventional phenomenon of uncertain engagement by the spring pin, and always inserting the insertion pusher. It has the effect of stably vertically moving the catcher over.
[0022]
According to a second aspect of the present invention, there is provided an electronic component automatic insertion device in which a concave portion for engaging the contact member is provided on the lower surface of the insertion pusher, and the convex contact member is engaged. This eliminates the phenomenon that the tip of the insertion pusher bends when the holding failure occurs, and always holds the upper part of the electronic component stably with the contact member coupled to the insertion pusher.
[0023]
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
(Embodiment 1)
FIG. 1 shows an electronic component automatic insertion apparatus according to claim 1. The apparatus according to the embodiment of the present invention shown in FIG. 1 has basically the same configuration as the conventional apparatus shown in FIGS. 6, 7, 8, and 9, and therefore the same components are the same. Reference numerals are assigned and detailed description is omitted.
[0024]
In FIG. 1, reference numeral 10 denotes an insertion pusher rod, which is formed of a cylindrical body having a notch groove 38 below, and a screw portion 39 is formed at the lower end. A projection 40 formed on the insertion pusher 11 is incorporated into the insertion pusher rod 10 so as to enter the notch groove 38, and a contact member 37 is attached to the tip 35 of the insertion pusher 11. The contact member 37 is made of an elastic material such as rubber or resin. In order to prevent the insertion pusher 11 from slipping, a cylindrical nut 41 having a threaded portion on the inner surface sandwiches an O-ring 42 that serves to prevent looseness from being inserted into the threaded portion 39 below the insertion pusher rod 10. It is fixed. The insertion pusher can be easily detached by detaching the nut 41, and the projection 40 is not detached by vibration.
[0025]
Further, the downward push of the insertion pusher 11 is performed by supplying air to the inside of the insertion pusher rod 10. The air pressure and the length of the insertion pusher rod 10 are optimally designed, and the upper part of the electronic component is The pressing force is kept optimal.
[0026]
The notch groove 38 provided on the insertion pusher rod 10 and the protrusion 40 provided on the insertion pusher 11 are relatively provided with a protrusion on the insertion pusher rod 10 and provided with a notch groove (recess) on the insertion pusher 11. It goes without saying that it is also good.
[0027]
The configuration is shown in FIG.
In FIG. 2, reference numeral 10 denotes an insertion pusher rod. The insertion pusher rod 10 has a hole 43, and a shaft 44 is fixed to the hole 43 with an adhesive so as to protrude inward. Reference numeral 11 denotes an insertion pusher. The insertion pusher 11 is provided with a recess 45. The insertion pusher 11 is assembled in a state where the shaft 44 of the insertion pusher rod 10 is fitted into the recess 45, and a contact member 37 is attached to the distal end 35 of the insertion pusher 11. Is installed. Since the shaft 44 is securely fixed to the insertion pusher rod 10 by the adhesive, the operation of the insertion pusher 11 is not unstable due to vibration.
[0028]
(Embodiment 2)
FIG. 3 shows an automatic insertion device for electronic components according to claim 2. The apparatus according to the embodiment of the present invention shown in FIG. 3 has basically the same configuration as the conventional apparatus shown in FIGS. Reference numerals are assigned and detailed description is omitted.
[0029]
In FIG. 3, reference numeral 11 denotes an insertion pusher. The insertion pusher 11 is provided with a concave portion 46 for engagement with the contact member 37 on the lower surface, and the contact member 37 is formed with a concave portion of the insertion pusher 11 by a convex portion 47 provided on the upper surface. 46 is attached. Since the distal end portion of the insertion pusher 11 is not a convex portion, the distal end portion of the insertion pusher 11 is not bent, and the insertion pusher 11 can operate stably.
[0030]
Another embodiment having the same configuration will be described with reference to FIG.
In FIG. 4, reference numeral 11 denotes an insertion pusher, which is provided with a storage portion 48 into which the contact member 37 is fitted on the lower surface. The contact member 37 inserted into the storage portion 48 is coupled to the insertion pusher 11 by a coupling member 49. ing. Since the tip of the insertion pusher 11 has no convex portion, the tip of the insertion pusher 11 does not bend, and the insertion pusher 11 can operate stably.
[0031]
【The invention's effect】
As described above, according to the present invention, by providing an insertion pusher in which an engagement protrusion that fits into a notch groove provided in an insertion pusher rod and a contact member that comes into contact with the upper part of the electronic component are attached to the tip. Reduction of insertion pusher breakage, insertion failure, and damage to electronic components can be reduced, insertion rate and operation rate, and quality of electronic components after insertion can be improved, improving productivity and quality. It has a great industrial value.
[Brief description of the drawings]
FIG. 1 is a perspective view of an electronic component automatic insertion apparatus according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of another electronic component automatic insertion apparatus according to Embodiment 1 of the present invention. FIG. 4 is a perspective view of another electronic component automatic insertion device according to Embodiment 2 of the present invention. FIG. 5 is a perspective view of another electronic component automatic insertion device according to Embodiment 2 of the present invention. FIG. 6 is a perspective view showing a conventional electronic component automatic insertion device. FIG. 7 is a partially cutaway side view showing a configuration of a main part of a conventional electronic component automatic insertion device. FIG. 9 is a perspective view showing a distal end portion of a lead wire guide pin. FIG. 9 is a perspective view showing a conventional insertion pusher and an insertion pusher rod.
DESCRIPTION OF SYMBOLS 1 Electronic component 2 Lead wire 3 Circuit board 4 Lever 5 Axis 6 Cam follower 7 Cam 8 Cam follower 9 Guide 10 Insertion pusher rod 11 Insertion pusher 13a, 13b Board guide 14 Axis 15 Cam follower 16 Lever 17 Cam 18 Cam follower 19 Guide 20 Guide pin rod 21 Lead wire guide pin 22 Lead wire guide pin guide 23 Guide hole 24 Lead wire insertion hole 25 Recess 26 Guide hole 27 Lead wire guide plate 28 Parts supply part 29 Transfer chuck 30 Insert chuck 32 Elongate hole 33 Hole 34 Spring pin 35 Tip 37 Contact member 38 Notch groove 39 Screw part 40 Protrusion 41 Nut 42 O-ring 43 Hole 44 Shaft 45 Recess 46 Recess 47 Protrusion 48 Storage part 49 Coupling member

Claims (2)

In an electronic component automatic insertion apparatus for holding an electronic component having a lead wire and mounting the electronic component on a circuit board in a state where the upper portion of the electronic component is pressed by a pressing mechanism, the pressing mechanism is formed by a cylinder provided with a notch groove below. An insertion pusher rod that can be moved up and down, and an engaging projection that fits into a notch groove provided on the insertion pusher rod and is urged downward and is incorporated in the insertion pusher rod so as to be movable up and down. An electronic component automatic insertion device comprising an insertion pusher having a contact member that contacts the top of the electronic component at the tip. The automatic insertion device for an electronic component according to claim 1, wherein a concave portion for engaging the abutting member is provided on the lower surface of the insertion pusher, and the convex abutting member is engaged.

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