JP2000182463A - Manufacture of sliding switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method ensuring high reliability of contacts and enabling efficient automatic assembly. SOLUTION: When a lid part 2 and a push rod 5 or the like, which are held beforehand in a jig are moved on an assembly line to a push rod feeder, the push rod 5 with a contact plate formed into a generally V-shape by an attached reforming device, is assembled to the lid part 2. After they have moved to a case main body part feeder 27, a case main body part 1 gripped by the gripping chuck 45 of a case main body gripping part 40 is positioned above the case main body feeder 27 with the opening of the case main body part 1 directed towards the lid part 2, and the arm parts 10b of the contact plate 10 are held from sideways by the holding parts 55 of a contact plate pressing part 50 to close the interval between right and left free ends 10a. In this state, the gripping chuck 45 is lowered to insert the free ends 10a into the case main body part 1, after which the right and left holding parts 55 are opened apart and the case main body part 1 is further lowered so as to abut against the lid part 2. The case main body part 1 is released by opening of the gripping chuck 45 and coupled to the lid part 2 by caulking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a sliding switch, and more particularly to a method suitable for automatic assembly.

[0002]

2. Description of the Related Art A case in which a hollow space is formed by a lid and a bottomed cylindrical case body, a push rod penetrating the lid and one end of which is inserted into the case so as to be able to advance and retreat. A contact plate having an intermediate portion attached to the one end of the push rod and both ends in the longitudinal direction forming free ends; the contact plate being expanded to the left and right across the axis of the push rod in the reciprocating direction; The extension end has a pair of left and right arms forming the free end, and the free end side of the contact plate is moved to and from the fixed end by moving the push rod forward and backward. Sliding switches adapted to slide are known.

[0003] The process of assembling the sliding switch is automated, and each arm of the contact plate integrated with the push rod in a separate line or the like is formed as if a person lifted both hands and bent. Every
By inserting this push rod into the lid on the assembly line, each free end of the contact plate faces upward, and then the case main body is placed above this so that the opening thereof faces the lid, and then the lid is placed. Move down towards
First, the free ends of the arms are pushed into the case body, and then the openings are fitted to the lids and connected by caulking or the like.

[0004]

However, according to the above-mentioned manufacturing method, since the contact plate is previously formed on a separate line or the like, the contact plate is deformed or damaged during storage after forming or during transportation to an assembly line. And the contact function may be impaired. When the contact plate is inserted into the case main body, the free ends of the left and right arms are expanded from the state inserted into the case main body to secure a predetermined contact pressure after the switch is assembled. Have been. For this reason, at the time of insertion, it is necessary to press and deform each arm by hand in order to reduce the interval between the left and right free ends. However, since this operation is a manual operation, completely automatic assembly cannot be realized, and the production efficiency has to be reduced. Accordingly, an object of the present invention is to provide a method of manufacturing a sliding switch that can solve such a problem.

[0005]

Means for Solving the Problems In order to solve the above problems, a first invention relating to a method of manufacturing a sliding switch in the present application is described as follows.
A case in which a hollow space is formed by the lid and the bottomed cylindrical case body, a push rod penetrating through the lid and one end of which is movably inserted into the case, and In a method for manufacturing a slide switch having a contact plate having an intermediate portion attached to one end and having a substantially V-shaped contact plate, a contact plate integrated with a push rod is bent into a substantially V shape, and then the push rod is placed adjacent to the push rod. It is characterized in that it is assembled to the lid by a push rod supply device.

According to a second aspect of the present invention, a case in which a hollow space is formed by a lid portion and a bottomed cylindrical case body portion, and one end portion penetrating through the lid portion is movably inserted into the case. In a method of manufacturing a slide switch including a push rod and a contact plate having an intermediate portion attached to the one end of the push rod and forming a substantially V-shape, the push rod in which the contact plate is pre-integrated is assembled. The case main body is attached to the lid by the case main body supply device from above, and the contact plate holding portion provided on the case main body supply device is used to cover each of the contact plates in advance when covering the case main body onto the lid portion. It is characterized in that the space between the free ends is kept narrow.

[0007]

According to the first aspect of the present invention, a hammering device for forming a contact plate integrated with a push rod into a substantially V-shape and a push rod supply device for assembling the push rod to a lid are provided on the same line. As a result, it is possible to assemble the contact plate immediately after the formation of the contact plate, reduce the risk of undesired deformation or breakage, improve the reliability of the contacts, and improve the production efficiency.

According to the second invention, the case main body supply device includes the case main body holding portion and the contact plate pressing portion. When the case main body portion is put on the lid portion, the contact plate pressing portion presses the contact plate with the contact plate pressing portion. The narrowing between the free ends narrows, so that the movement of the assembling device is not stopped when assembling the case body, and high-speed assembling is possible, so that production efficiency can be improved and complete automation is possible. Become.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to FIGS. FIG. 1 is a view showing a process of inserting a contact plate into a case body, FIG. 2 is an overall view of the apparatus as viewed from one side, FIG. 3 is a schematic overall view of a slide switch assembly line, and FIG. FIG. 5 is an assembly process diagram, and FIG. 5 is a cross-sectional view of a completed state of the sliding switch obtained by this manufacturing method.
FIG. 6 is an explanatory diagram of the contact plate forming step.

First, the overall structure of the sliding switch when assembly is completed will be outlined with reference to FIG. The sliding switch is made of a resin-made, substantially bottomed cylindrical case body 1, a metal cover 2 that covers the opening and is fixed by caulking around the case body 1, And a push rod 5 having a guide portion 4 slidably inserted into the mounting portion 3 and having a cylindrical mounting portion 3 having a thread formed on an outer periphery extending from a central portion thereof.

The push rod 5 is a rod-shaped resin member as a whole, and its tip 6 has a diameter larger than that of the guide 4 and extends into the case main body 1. A concave portion 7 is formed in the center direction, and a return spring 9 is provided between the concave portion 7 and a retainer 8 made of resin provided at the bottom in the case main body 1.

The tip 6 has a contact plate 1
0 intermediate part is integrated. Contact plate 1
Reference numeral 0 denotes a band-shaped member made of a relatively flexible material such as Linsey copper or brass, which is bent in a substantially V-shape at an intermediate portion, and the left and right ends form free ends 10a, respectively. The arms 10b having the push rods 10a are paired on the left and right with the axis of the push rod 5 interposed therebetween, and expand and extend in the pushing direction of the push rod 5.

An outwardly protruding contact portion 11 is formed near the left and right free ends 10a. The contact portion 11 is formed integrally with the distal end portion 6 by pushing the push rod 5 against the return spring 9. When the plate 10 moves downward, the insulating portion 12 provided on the upper part of the inner wall surface of the case body portion 1 contacts the fixed contact portion 13 provided vertically below the insulating portion 12 to conduct and switch on. .

The fixed contact 13 protrudes outward from the bottom of the case body 1 to form a coupler terminal 14, and protrudes into a coupler 15 formed integrally with the case body 1. A rotation preventing portion 16 is formed from the front end portion 6 so as to protrude left and right in a direction orthogonal to the contact plate 10, and the rotation preventing portion 16 is formed in an axial long groove 17 formed in the insulating portion 12.
It moves within the inside as the tip 6 moves forward and backward. In the figure, reference numeral 18 denotes a caulking portion which is a connection portion between the case main body 1 and the lid portion 2, and 19 denotes a positioning nut.

Next, a method of manufacturing the sliding switch will be described. First, as shown in the assembly line of FIG. 3, along the center line 20, from the start side end to the end side end, the mounting part supply device 21, the lid part supply device 22, the first control unit 2
3, push rod supply device 24, return spring supply device 25, spring base supply device 26, case main body supply device 27, second control unit 28, caulking device 2
9, third control unit 30, marker 31, nut fastening device 3
2, the conveyor 33 and the packing device 34 are arranged in order.

The operation of each of these devices will be described with reference to the process chart of FIG. First, the attachment supply device 21 attaches the attachment 3 to the mounting jig 3 provided on the center line 20.
5, the lid 2 is placed on the assembling jig 35 by the lid supply device 22, and one end of the mounting portion 3 is fitted into a mounting hole formed in the center thereof (FIG. 4A).

Subsequently, the first control unit 23 controls the mounting unit 3
Is caulked at one end to be integrated with the lid 2 (FIG. 4a). Thereafter, when the process proceeds to the supply device 24 for the push rod 5, the push rod 5 is inserted into the shaft hole of the mounting portion 3 from one end side. At this time, the contact plate 10 integrated around the distal end portion 6 on the other end side of the push rod 5 is bent into a substantially V-shape and has a relatively large degree of expansion (interval D1). (FIG. 4b).

One end of the return spring 9 is fitted into the recess 7 of the push rod 5 in this state by a return spring supply device 25, and the other end is covered with a retainer 8 by a spring base supply device 26 (FIG. 2). 4c).

Next, the operation moves to the case main body supply device 27,
Here, each arm 10b is deformed by a method described later so that the distance between the left and right free ends 10a is reduced from the initial D1 to D2, and then the case main body 1 is put on the lid 2 (FIG. 4d). ). When the opening width of the case body 1 is D, there is a relationship of D1>D> D2.

When the case body 1 reaches the predetermined position where the free ends 10a of the contact plates 10 have sufficiently entered into the case body 1 by approaching onto the lid 2, these are provided in the second control unit 28. The detected sensor detects. Based on this detection result, the left and right pressing portions 55, which
Is opened, and the lower end opening side of the case main body 1 is securely brought into contact with the lid 2 (FIG. 4E).

Thereafter, when the lid 2 and the case main body 1 are connected by caulking by the caulking device 29, the assembly is completed (FIG. 4f). Subsequently, an electrical test is performed by the third control unit 30, and the passed product is marked with a predetermined mark by the marker 31, the nut 19 is mounted on the mounting unit 3 by the nut tightening device 32, and further removed from the jig. Then, it is sent to the packing device 34 by the conveyor 33, and is subjected to predetermined packing.

FIGS. 1 and 2 show a case body supply device 2.
7 shows a detailed structure of the device. This device comprises a case body holding portion 40 for holding the case body portion 1 and covering the cover portion 2 from above, and a pair of free ends 10a constituting the contact plate 10 at this time. Is provided with a contact plate pressing portion 50 for reducing the size of the contact plate.

The case main body gripping portion 40 has a main arm 41 attached to a column (not shown) so as to be rotatable around its axis.
A slider 43 that moves up and down by an air cylinder 42 provided at the distal end thereof; a long grip arm 44 having one end supported by the slider 43 and the other end extending onto the mounting jig 35; It has a gripper chuck 45 supported at its free end and expanding like scissors.

Accordingly, the case body gripping section 40 moves onto the assembly jig 35 while holding the case body section 1 on the pallet prepared in advance on the worktable with the gripping chuck 45, and further from this position. The case body 1 is lowered to cover the lid 2, and then the holding chuck 45 is opened to ascend with the case body 1 left, and then returned to the pallet again, and thereafter, this operation is repeated. ing.

The contact plate pressing portion 50 is assembled with a pair of side plates 52 opened and closed by an air cylinder 52 supported by a support column 51, and substantially parallel to the grip arm 44 from the lower end thereof in a side view (FIG. 2). Jig 35
A plate-like holding arm 54 extending upward, and the free end side of the holding arm 54 is stretched onto the assembling jig 35 so as to hold the contact plate 10 from the outside from the left and right in a front view (FIG. 1). A holding part 55 is provided.

As shown in FIG. 1, the pressing portion 55
When the pair of side plates 52 move in parallel with the air cylinder 52, the holding arm 54 opens and closes by moving integrally with the side plate 52, releases the contact plate 10 when opened, and releases the contact plate 10 when closed. The pair of free ends 10a is pressed and narrowed so that the attachment of the case body 1 becomes smooth.

In order to keep the degree of pressing on the left and right free ends 10a constant, stoppers 56 are provided at corresponding positions of the side plates 52 for holding the left and right pressing portions 55 at a predetermined interval during pressing. .

The stopper 56 is formed in a bolt shape, and the heads 57 of the stopper 56 are back-to-back, but
The distance between the left and right side plates 52 at the closed position can be maintained at a predetermined value. Further, the distance between the left and right side plates and the distance between the pressing portions 55 can be adjusted by the screwing amount when the screw portion of each stopper 56 is screwed into the side plate 52.

FIG. 6 shows a detailed structure of the device for attaching the contact plate 10 to the push rod supply device 24. The table 60 has a vertical hole into which the end of the push rod 5 opposite to the tip 6 is fitted. A vertical jig 61 is formed in the vertical direction, and a bending jig 62 is disposed above the table 60 to the left and right with an extension of the vertical hole 61 interposed therebetween.

Between the opposing portions 63 of the left and right bending jigs 62, there is formed a processing slit 64 located on the extension of the vertical hole 61, and a shoulder facing the processing slit 64 formed by the left and right bending jigs 62 is formed. It forms a processing slope 65 and is formed with the same left and right inclination toward the vertical hole 61.

The contact plate 10 integrated with the distal end portion 6 of the push rod 5 has the right and left arm portions 10b extending substantially horizontally in the initial shape supplied to the push rod supply device 24 as shown by phantom lines. It has a substantially cross shape as a whole together with the push rod 5.

After the push rod 5 is disposed above the extension of the vertical hole 61, the end opposite to the distal end portion 6 is lowered downward and inserted into the vertical hole 61. 64, the left and right arms 10b are plastically deformed by the processing slope 65 and bent at a predetermined opening angle to form a substantially V-shape.
It becomes 1.

The push rod 5 having the contact plate 10 deformed as described above is then transferred to the mounting portion 3 fixed to the mounting jig 35 on the center line 20 by the main body of the push rod supply device 24 described above. It is fitted and further sent to the adjacent case body supply device 27.

In this step, the push rod 5
Is moved by a hammering robot (not shown), and the arm end portion 66 has an openable structure such as a fork, and is inserted into the concave portion 7 provided at the end portion 6 of the push rod 5. Push rod 5
Are movable together, and are released by closing.

Next, the operation of this embodiment will be described. In the case main body supply device 27, when the lid 2 and the push rod 5 and the like previously held by the assembling jig 35 have moved on the center line 20 to the front of the case main body supply device 27, contact is made. When the holding section 50 is operated, the holding section 5
5 closes and presses each contact plate 10 from the outside, deflating its free end to a smaller D2 from the initial spacing D1 (FIG. 4d).

At the same time, the case main body gripping section 40 picks up the case main body 1 with the gripping chuck 45, moves the case main body 1 above the assembling jig 35, and faces the lid 2 with the opening downward. When the free end 10a is lowered, the free ends 10a are narrower than the opening width D of the case main body 1 and have an interval of D2, so that the free ends 10a enter the case main body 1 smoothly.

If the contact plate 10 further enters the case main body 1 when the descent is continued, and reaches the predetermined position where the free end 10a cannot come out, the second control unit 28 detects this state, and Since the left and right holding portions 55 are opened so as not to obstruct the portion 1, the case body portion 1 is pressed down again until the lower end opening thereof abuts on the lid portion 2 (FIG. 4e).

Thereafter, when the gripper chuck 45 is opened, the case main body 1 is released, and the case main body 1 is lifted while remaining on the lid 2 side, the operation of the case main body supply device 27 is completed,
Subsequently, caulking is performed by the adjacent caulking device 29, and the front end side of the flange portion 2a of the lid portion 2 is bent onto the large-diameter step portion 1a formed on the outer periphery of the opening portion.
8 (FIG. 5) and integrated (FIG. 4f).

As described above, since the case body holding portion 40 and the automated contact plate pressing portion 50 are provided below the case body holding portion 40, the contact plate 1 is inserted into the case body portion 1.
Since the movement of the assembling device can be prevented from being stopped at the time of insertion of 0, and high-speed assembling can be performed, production efficiency can be improved and complete automation can be performed.

Further, the contact plate 10 is released from being pressed after being inserted into the case main body 1, and the left and right arms 10b are free to expand in the expanding direction so that they can be opened to the initial opening angle. And the distance D1 between the free ends 10a when the left and right arms 10b are free.
And the opening width D of the opening of the case body 1 satisfies the relationship of D1> D.
, A predetermined contact pressure can be secured, and the reliability of the switch can be improved.

Further, the push rod supply device 24 immediately attaches the contact plate 10 bent in a substantially V shape to the cover 2 attached to the assembly jig 35 moving on the center line 20. 3 and then the case main body 1 is covered by the case main body supply device 27, so that the bending and forming of the contact plate 10 and its assembly can be continued.

Accordingly, it is possible to prevent the contact plate 10 from being undesirably deformed or damaged as in the case where the contact plate 10 is bent and formed in a separate step. For this reason, the reliability of the contact can be improved and the production efficiency can be improved.

In addition, a hammering device is provided in addition to the push rod supply device 24, and the contact plate 10
Since the bending jig 62 is provided as a bending means for
Thereby, the contact plate 10 can be easily and reliably bent in a substantially V-shape in a state of being integrated with the push rod 5, and the push rod 5 is continuously formed from one continuous contact plate material before cutting. Thereafter, individual cutting can be performed, so that the production efficiency can be improved also in this respect.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a case main body supply device.

FIG. 2 is an overall side view thereof.

FIG. 3 is a schematic overall view of a slide switch assembly line.

FIG. 4 is an assembly process diagram of a sliding switch.

FIG. 5 is an overall sectional view of a sliding switch.

FIG. 6 is an explanatory view of a contact plate forming process.

[Explanation of symbols]

1: Case body, 2: Lid, 3: Mounting, 4: Guide, 5: Push rod, 6: Tip, 10: Contact plate, 11: Contact, 20: Assembly line, 21:
Attachment supply device, 22: lid supply device, 23: first control unit, 24: push rod supply device, 25: return spring supply device, 26: spring base supply device,
27: case body supply device, 29: caulking device, 3
5: assembly jig, 40: case main body gripping part, 45: gripping chuck, 50: contact plate holding part, 55:
Holding part

Claims (2)

[Claims] 1. A case in which a hollow space is formed by a lid and a bottomed cylindrical case body, a push rod penetrating the lid and one end of which is inserted into the case so as to be able to advance and retreat. In a method of manufacturing a slide switch having an intermediate portion attached to the one end of the push rod and having a substantially V-shaped contact plate, a contact plate integral with the push rod is bent and formed into a substantially V shape. A method of manufacturing a sliding switch, wherein the push rod is assembled to a lid by an adjacent push rod supply device. 2. A case in which a hollow space is formed by a lid and a bottomed cylindrical case body, a push rod penetrating the lid and one end of which is inserted into the case so as to be able to advance and retreat. In a method of manufacturing a slide switch having a contact plate having an intermediate portion attached to the one end portion of the push rod and having a substantially V-shaped contact plate, the cover portion is provided with a push rod in which the contact plate is integrated in advance. On the other hand, the case main body is attached from above by the case main body supply device, and when the case main body is put on the lid by the contact plate holding portion provided in the case main body supply device, each contact plate is previously spaced from the free end. A method for manufacturing a sliding switch, characterized in that the sliding switch is pressed so as to be narrow.