JPS589533B2 - Autofuse wiping method and autofuse wiping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention (a plurality of inventions described below) relates to a method for inserting an autofuse, which is often used in automobiles, into a fuse box, and an insertion device therefor.

The autofuse in the present invention is as shown in FIG.
A thin and flat rectangular plate-shaped resin casing 1 contains a fusing part, and a flange body 3 with a convex step is provided on the outer periphery of the head of the casing 1, and a bipedal plate-shaped terminal is provided at the lower end of the casing 1. This autofuse is inserted into a fuse box in which a large number of deep grooves into which the casing 1 is inserted are bored in single or double rows at intervals, and is mainly Often used in automobile electrical circuits.

However, since the insertion is conventionally done manually,
The phenomenon of incorrect insertion, which consumes a considerable amount of man-hours and results in a mismatch between the insertion position and capacity due to misidentification when inserting autofuses that are made up of many different combinations of the same shape and size but with different capacities. There are unavoidable quality defects.

The present invention has been made to eliminate the above-mentioned conventional defects, and provides a method for automatically and accurately inserting an autofuse into a fuse box, and an insertion device therefor.

Describing the present invention below, the insertion method according to the present invention includes autofuses (hereinafter referred to as works) that are brought into contact with each other in the longitudinal direction, arranged in a single row in a hanging manner, and sequentially fed while vibrating, and placed in the same state as above. At the same time, a certain number of workpieces are accurately aligned and held so as to sandwich both sides of the casing, and then the holding is released and the required number of workpieces are guided to the fuse box predetermined positions by natural falling due to the head. , the gist is how to automatically insert it.

The details will be explained with reference to the drawings (FIGS. 2 to 7) showing an example of an insertion device using the above method.

First, the alignment conveyor 6 is a slender body having a deep groove 6' into which the casing 1 of the workpiece 10 is loosely inserted, as shown in the cross section of FIG. A vibrator 7 is provided on the lower surface of the vibrator 7, and the vibrator 7 is installed on an underframe 4.

Further, the alignment conveyor 6 is attached with a known parts feeder 5 on the entrance side so that the two are connected, and is installed at an inclination of about 5° to facilitate the gradual feeding of the workpieces 10.

On the other hand, the alignment holder 9 is constructed by a holding frame 12 fixed to a plate-shaped base 11 attached to the base frame 4', and an air cylinder 15 attached to a bracket 14 on the base 11, as indicated by the arrow 5 in the figure. The holding frame 12 and the upper edge of the movable holding piece 13 in a steady state form a slit 16 for inserting the workpiece 10 into a hanging clog in the same way as the alignment conveyor 6. It is connected in series with the carrier 6 and holds the workpiece 10 in contact with each other.

The slit 16 is limited in length to accurately accept twice the number of required works, and is configured so that every other workpiece of the number aligned in the slit 16 is held by the movable holding piece 13.

Therefore, the end face of the movable holding piece 13 is formed in a zigzag shape in the longitudinal direction and meshes with the frame portion 12' of the holding frame 12 (FIG. 6).
One surface of the slit 16 is formed, and the work 10 is freely held and released by the operation of the guide pins 17 at both ends and the air cylinder 15.

The holding frame 12 is integrally formed with the meshing frame portion 12' and a continuous frame portion forming the other side of the slit, and has a drop passage 18 for the workpiece 10 in the center thereof.

Further, below the holding frame 12 where the movable holding piece 13 is located, guide chutes 19 each having a cylindrical body through which the workpieces 10 are individually guided to fall by a drop are fixed, and the guide chutes 19 and the through hole 18 communicate with each other. A flexible chute 20 is attached to the tip of the guide chute 19, and the tip is placed at the workpiece insertion position.

It also has a holding plate 22 whose end portion is fitted onto a columnar support shaft 21 fixed to the base plate 11 and slides up and down, and a large number of pairs of conductive terminals 23 are arranged on the lower surface of the holding plate 22 .

The holding plate 22 is connected to a rond 25' of an air cylinder 25 attached to a frame 24 fixed to the base plate 11 to move up and down, and the conduction terminal 23 is connected to the upper surface of the workpiece 10 held by the movable holding piece 13. Fit them into the small holes as a pair and repeat the continuity check operation.

In the above configuration, a large number of works are randomly loaded into the parts feeder 5, and are fed one by one to the alignment conveyor 6 in the above-mentioned suspended state, and both ends of the collar body 3 are brought into contact with each other by the operation of the pie break-7. It is then fed in a single row.

Next, the workpiece 10 is guided to the slit 16 of the alignment holder 9 by the conveying force of the alignment carrier 6, and the work 10 is guided through the slit 16 of the alignment holder 9
Two times the required amount of workpieces are filled in contact with each other, and every other workpiece is held so as to be clamped by the holding frame 12 with the movable holding piece 13 at a steady position, and every other workpiece is held by the fixed holding frame. It is held at 12.

After confirming the above-mentioned accurate filling by the electric circuit, the air cylinder 25 is automatically operated to engage the continuity terminal 23 with the corresponding workpiece, and a continuity test is performed.

In this way, when there is a defective product, an alarm is issued and the subsequent operation is automatically shut off, and when there are only non-defective products, the movable holding piece 1
3 are automatically disengaged, the required number of sets of workpieces fall naturally, and are accurately guided to the insertion position via the guide chute 19 and the flexible chute 20.

Next, referring to FIG. 1, the fuse box 27 installed on the movable plate 28 on the workbench is guided to a position corresponding to the insertion hole of the fuse box in order to accurately and easily insert the workpiece. An insertion aid 26 having a hole 26' is inserted into the upper surface thereof.

The single-force flexible chute 20 is freely curved and disposed with its tip in contact with the guide hole 26', and the workpiece guided and dropped inside the flexible chute 20 maintains the holding force direction with the terminal 2 facing downward. The required number of workpieces are inserted into the guide hole 26' accurately and automatically pre-inserted into the fuse box.

Subsequently, the moving plate 28 moves to the next step, the pre-inserted workpiece is accurately press-fitted, and the insertion aid 26 is removed.

Note that the above-mentioned limitation of the falling workpieces by the movable holding piece to half of the aligned workpieces is intended to avoid mutual interference and support accurate falling action. It is possible to recover the self-functioning function after the fact by manually removing the only part, and to continue the normal insertion and insertion function.

On the other hand, when inserting a combination of two types of workpieces with different capacities into a single fuse box, the above-mentioned insertion devices for each type are arranged side by side, and the flexible chutes 20 are arranged in combination to perform the insertion operation at the same time. Can be done.

As described above, the present invention automates the autofuse insertion operation, completely eliminating the conventional insertion of foreign items due to manual misidentification, improving the quality reliability of the fuse box, and significantly reducing the number of work steps. It has the effect of

Next, a description will be given of an insertion device that automatically inserts many types of autofuses of the same shape and size with different capacities using a single device.

This device has a configuration common to that of the invention shown in the second diagram, and includes a parts feeder 5 and an alignment conveyor 6 similar to those described above.
, an alignment holder 9, a conductive terminal 23, a guide chute 19, and a flexible chute 20, and basically function in the same manner as described above.

However, for the purpose of inserting multiple types of work mentioned above, magazine bodies filled with different types of workpieces are disposed in a crosswise manner in the main part of the alignment conveyance body 6, so that the number of works to be sequentially fed through the alignment conveyance body 6 can be accurately controlled. After counting and detecting, the different kinds of workpieces filled in the magazine body are inserted between the progressively fed workspieces at predetermined intervals, and the workpiece group consisting of various combinations is accurately conveyed and inserted into the fuse box.

For details, referring to FIGS. 8 and 9, the alignment conveyor 6 is constructed in the same manner as described above, and sequentially conveys a large number of single works 10 randomly loaded into a parts feeder while abutting each other on the hanging clogs.

On the other hand, a magazine body 29 filled with a large number of different types of workpieces 10' is installed in the middle of the alignment conveyor 6 in an intersecting manner, and is an open magazine in which only the frontmost workpieces 10'' of the magazine body 29 escape downward by pressure. An air cylinder 30 bored in the bottom of the frame and fixed above the frame.
The rod 31 is configured to move downward and allow the workpieces 10'' to escape one by one.

On the other hand, the opening of the magazine frame portion and the progressive groove of the alignment conveyance body 6 are positioned so as to coincide with each other, and a solenoid 32 is attached to the side of the alignment conveyance body 6 at the right position of the magazine body in the figure, and the solenoid 32 is activated. Accordingly, the progressive feeding of the workpiece 10 is temporarily stopped before that position.

In the above configuration, the different kinds of works 10' are accurately inserted between the permutations of the works 10 at predetermined intervals, and the combined groups of different kinds of works are guided to the alignment holder 9 and placed in the predetermined position of the fuse box. Capacity autofuses can be inserted automatically and accurately.

In the above-mentioned insertion operation of the work 10', the number of successive feeds of the work 10 is counted and detected by an electric circuit (not shown), and the solenoid 32 is automatically activated in response to the detection.

Therefore, the progressive feeding of the workpieces before the solenoid 32 is temporarily stopped, and the air cylinder 30 is inserted into the gap C created below the magazine body.
The required number of works 10' can be inserted by automatic operation.

Further, although only a single magazine body is shown in the drawings, a plurality of magazine bodies can be arranged so that, for example, three to four types of autofuses can be automatically inserted into a single fuse box as a group.

As described above, the device illustrated in Figures 8 and 9 completely automates the autofuse insertion due to complex combinations, which frequently caused insertion failures due to manual misidentification in the past, and eliminates the conventional defects. It has the unique effect of eliminating this problem and significantly improving the quality level.

[Brief explanation of the drawing]

Figure 1: Front and side views showing the shape of the autofuse,
Figure 2: Overall front view showing an embodiment of the insertion device of the present invention,
Figure 3: Partial plan view of Figure 2, Figure 4: CCI of Figure 1
Enlarged view of T plane, Fig. 5: Enlarged view of AAIT plane of Fig. 2, Fig. 6
Figures: BB sectional view in Figure 5, Figure 7: Perspective view showing the autofuse insertion state, Figure 8: Front view of the alignment conveyor according to an embodiment of the present invention in which a magazine body is arranged, Figure 9: 8th
FIG. Explanation of main symbols, 1: casing, 2: terminal, 3: collar body, 4: underframe, 5: parts feeder, 6: alignment conveyor,
7: Vibrator, 9: Alignment holder, 10: Workpiece,
11: Base plate, 12: Holding frame, 12': Frame portion, 13: Movable holding piece, 15: Air cylinder, 16: Slit, 18
Double hole, 19: Guide chute, 20: Flexible chute, 2
1: Support shaft, 25: Air cylinder, 26: Insertion aid,
26' two guide holes, 27: fuse box, 28: moving plate, 29: magazine body, 30: air cylinder, 32:
It is a solenoid.

Claims (1)

[Scope of Claims] 1. A welding part is enclosed in a thin flat rectangular plate-shaped resin casing, a flange having a convex step on the outer periphery of the head of the casing, and a bipedal plate-shaped terminal at the bottom of the casing. In inserting a group of autofuses protruding into a fuse box, the autofuses are sequentially fed in a single row in a suspended manner with their heads brought into contact with each other in a longitudinal direction while applying vibration;
Subsequently, the constants of the autofuse are held in alignment in the hanging state, and then the holding is released and the autofuse is guided to fall by a drop, and is automatically inserted into a predetermined position of the fuse box. How to automatically insert an autofuse. 2. An autofuse in which a medullary part is contained in a thin flat rectangular plate-shaped resin casing, a flange having a convex step on the outer periphery of the head of the casing, and a bipedal plate-shaped terminal protruding from the lower part of the casing. In inserting the autofuse into a fuse box, a long groove is bored through which the casing side surface is loosely fitted and the autofuse is progressively fed in a hanging manner, and an alignment conveyor having a vibrator and the autofuse installed on the alignment conveyor are formed. The magazine body is provided with an opening at an end for discharging one of the autofuses, and is configured such that the autofuse can be automatically transferred from the opening to the long groove. An alignment holder for aligning and holding the constants of the autofuses in the hanging state is connected to the alignment carrier, and the alignment holder is constituted by a movable holding piece that can be freely separated for each of the constants. , the movable holding piece has an opening through which each autofuse passes through, and a cylindrical drop guide chute communicating with the opening, the end of the drop guide chute being connected to the fuse box of the fuse box. An automatic fuse insertion device characterized by a structure in which the fuse is installed at the insertion position.