JPS6256603B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a method for assembling a lighting equipment main body and a ballast, and provides an assembly method that is optimal for automating the assembly of both in the assembly process of a lighting equipment. death,
The purpose is to improve the workability.

Lighting equipment, typified by ring-shaped fluorescent lamp lighting equipment, usually has a lighting equipment body (hereinafter simply referred to as the main body).
Assemble the ballast, glow lamp socket, safety bulb socket, switch, power line, etc. inside the lamp, electrically connect them, cover with a reflector, and install the lamp holder at an appropriate location on the periphery. A glow lamp and a safety bulb are attached to each socket, and a fluorescent lamp is attached to the lamp holder. Further, an appropriate number of the ballasts, glow lamps, etc. are assembled in accordance with the number of fluorescent lamps to be attached.

Traditionally, such lighting fixtures have been assembled manually by workers who sequentially feed each part, including the main body, onto a suitable jig, position each part relative to each other, and then assemble them into one piece. . Therefore, workability is poor, it is difficult to improve the production rate, and moreover, the large number of assembly steps requires a lot of manpower, and the manufacturing cost is high, making it difficult to provide inexpensive products.

For example, conventionally, when assembling the main body and the ballast, the bottomed cylindrical main body was first fed onto a suitable assembly jig with the opening facing upward, and then the bodies were positioned facing each other in an appropriate position. After that, a predetermined number of pieces, for example 2
Workers manually supplied individual ballasts, positioned them, and then fastened them together using fastening fittings such as rivets.

As described above, there are many work steps in the process of assembling the main body and the ballast, and many workers are required if these steps are carried out on an assembly line.

In addition, in lighting fixtures for annular fluorescent lamps, the main body is formed, for example, in a cylindrical shape with a bottom and has no directionality, so the positioning of the main body during supply is often inappropriate, and the stability of the main body after supply is It takes a lot of time for the operator to visually determine the position of the device.

Therefore, in order to improve the workability and production rate of lighting equipment assembly and to reduce manufacturing costs, there is a strong demand for reduction and automation of the assembly man-hours. In addition, in the conventional assembly method, a fastener such as a rivet is inserted from the ballast side to the main body side and connected, so the head of the fastener, which has a nice shape like the head of a rivet, is inside. The tip side, which is hidden and has an irregular shape like a crushed rivet part, is exposed to the outside of the main body, resulting in an unsightly appearance.

This invention was made in view of the above-mentioned problems and demands in assembling conventional lighting equipment, and has a main body and ballast that are suitable for automation, improve workability and production rate, and enable improved appearance. Provides an assembly method. That is, in the present invention, a small-diameter positioning pin, which is attached to the upper end of the support shaft of an assembly jig so as to be able to move up and down, is fitted into a mounting hole drilled in the mounting frame of the stabilizer with the terminal facing downward; Insert the ballast mounting hole drilled in the bottom of the lighting fixture body with the opening side facing downward into the positioning pin that is on the ballast positioned above and protrudes from the mounting hole of the ballast mounting frame. After that, insert the fastening metal fittings into the ballast mounting hole of the lighting equipment body and the mounting hole of the ballast mounting frame while pressing the above positioning pin, and use the fastening metal fittings to connect the lighting equipment body and the ballast. To provide a method for assembling a lighting equipment main body and a ballast, which are fastened together.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A case where an embodiment of the present invention is applied to a lighting fixture for an annular fluorescent lamp will be described below with reference to the drawings.

The main body 1 applied to the assembly method of the present invention has a cylindrical shape with a bottom of a predetermined diameter as shown in FIGS. 1 and 2, for example, and has a flange 2 integrally formed around the opening thereof, Notches 3a, 3b, and 3c are formed at appropriate locations on the periphery of the flange 2, for example, at three locations. In addition, a center hole 4 for positioning during stocking is formed in the center of the bottom surface 1a of the main body 1, and ballast mounting holes 5, 5..., switch mounting holes 6, 6..., and A power supply insertion hole 7 is formed, and a positioning hole 8 and a reflector mounting hole, for example, a screw hole 9, are bored in the flanges 2', 2'', 2 between the cutouts 3a, 3b, 3c, respectively.

On the other hand, the stabilizer 10 has a stabilizer main body 1 in which a coil is wound around a bobbin 11 and cores 12 and 12 are mounted facing each other, as shown in FIGS. 3 and 4, for example.
The cover 14 is attached to the upper surface of 3, the mounting frame 15 is attached to the lower surface and the side surface, and the two are fixed by caulking at four places on the upper part.
Further, two connection terminals 16, 1 are attached from the protrusion 11a protruding laterally at the upper end of the bobbin 11 of the ballast main body 13.
6 are lined up and led out, and a mounting hole 17 and a positioning pin hole 18 are bored on both sides of the lower part of the mounting frame 15, respectively.

As shown in FIG. 5, the ballast 10 and main body 1 as described above are transported on a suitable conveyor 21 such as a free flow conveyor by ballast positioning means 19 and main body positioning means 20, which will be described later. They are sequentially positioned and supplied to predetermined positions on the coming assembly jig 22, and are assembled together with fastening fittings, for example, rivets 23 (FIG. 12).

The assembly jig 22 includes the stabilizer 10 and the main body 1.
For example, as shown in FIG. 6 and FIG.
... are fixed upright at four locations, and the corresponding support shafts 24, 24
Small-diameter positioning pins 25, 25... are attached to the upper end of ... so as to be movable up and down, and these positioning pins 25, 25...
... are fitted into mounting holes 17, 17 drilled in the ballast 10 and ballast mounting holes 5, 5... drilled in the main body 1. The positioning pins 25, 25... are held in a protruding state at all times by, for example, a spring (not shown) built into the upper part of the support shafts 24, 24..., and when an external force is applied from above, the upper end of the positioning pins slightly displaces the support shaft. 24, 24... It is configured to descend until it enters the inside. In addition, the main body 1 is placed at appropriate locations around the center hole 65, for example, at three locations.
Support columns 26, 26, 26 are provided for positioning the stabilizer and for supporting the main body in a subsequent process after attaching the stabilizer.

As shown in FIG. 8, for example, the stabilizer positioning means 19 has support frames 29 and 30 slidably installed on two U-shaped support rails 27 and 28 arranged in parallel. Support pillars 31 and 32 are rotatably supported through the center of the support pillars 31 and 32, and guide plates 33 and 34 are fixed to the lower ends of the support pillars 31 and 32, respectively. Locating pins 35, 35, 36, 36 are protrudingly provided at both ends of the lower surfaces of the guide plates 33, 34 to correspond to and fit into the locating pin holes 18, 18 drilled in the mounting frame 15 of the stabilizer 10,
In addition, a suction means for suctioning the mounting frame 15 of the stabilizer 10 at the center part, for example, an electromagnetic solenoid 37,
38 is installed. A pinion 39 is fixed to the upper end of one of the pillars 32, and a rack 40 meshed with the pinion 39 is fixed to the tip of a piston rod 41a of a first cylinder 41 attached to the support frame 30. Due to the operation, the support 3 via the rack 40 and pinion 39
2 and the guide plate 34 can be rotated by 180 degrees. In addition, one end of the links 42, 43 is pivotally attached to an appropriate position on the upper surface of both the support frames 29, 30, and the other end of the second cylinder 45 is attached to one of the support rails 28 on a mounting base 44. is swingably attached to the tip of the piston rod 45a,
This expansion and contraction of the second cylinder 45 causes the link 4 to
The support frames 29, 30 are horizontally moved along the support rails 27, 28 by swinging the support frames 2, 43 about the fixing portions, so that the distance between them can be adjusted. The support rails 27 and 28 of the positioning means 19 are fixed to orthogonal support bars 46, and the ends of the support bars 46 are attached to a movable block 48 slidably disposed within a horizontally supported guide rail 47. The movable block 48 is fixed to the tip of the piston rod 50a of the third cylinder 50 which is integrally attached to the guide rail 47 and the mounting plate 49, and the movable block 48 and the support bar 46 are fixed by the telescopic movement of the third cylinder 50. The positioning means 19 is horizontally moved between the ballast supply position and the assembly jig 22 through the ballast. Note that the guide rail 47 is supported so as to be vertically movable by appropriate means.

On the other hand, the main body positioning means 20 is rotatably supported by a support frame 51, as shown in FIGS. 9 and 10, for example, and is configured to rotate intermittently via an intermittent rotation mechanism, for example, a Geneva mechanism 52. A rotary stage 54 having a plurality of sections, for example, four sections, which accommodates the main body 1, is fixed to the upper end of the rotary shaft 53, and each section of the rotary stage 54 is inserted into a center hole 4 bored in the main body 1 approximately at the center thereof. A guide pin 55 is provided protrudingly, and the guide pin 5
A positioning guide post 56 is provided in a predetermined arrangement relationship with the main body 1 and comes into contact with a specific notch 3a formed in the main body 1. Also, each guide pin 5
5, 55... are connected to the main body 1 via bearing members 57, respectively.
A disk-shaped support plate 58 having a diameter sufficiently larger than the diameter of the support plate 58 is mounted so as to be movable up and down, and locking grooves 59, 59 formed on the periphery of the support plate 58 are locked to the corresponding guide columns 56, 56, respectively. rotation is prevented, and a specific portion of the periphery is made to protrude outward from the rotation stage 54. This support plate 58
A large number of main bodies 1 are stacked on top and positioned by guide pins 55 and guide columns 56, 56. still,
The guide columns 56, 56 and support plate 58 in each section of the rotation stage 54 are arranged in relation to the guide pin 55 for each section so that they are always in the same state even when the rotation stage 54 is displaced intermittently. Intermittent rotation angles, for example 90°, are arranged differently. The positioned body 1 is therefore held differently by 90° for each section. Further, a screw 60 is attached to the support frame 51 on the side of the main body supply section of the rotation stage 54.
is rotatably supported, and a spiral groove 61 formed over the entire length on the circumferential surface is engaged with the edge of the protruding support plate 58, so that the support plate 58 is raised by rotation of the screw 60. be. This screw 60 is connected to a known drive means through a sprocket wheel 62 fixed to its lower end, and is rotated so as to raise the support plate 58 to the height of one main body in one operation.
The guide pin 55, guide post 56, and screw 60 are all set at a height corresponding to the stacked height of the main body 1 to be held, and the contact surface of the guide post 56 with the main body 1 is designed to reduce frictional resistance. In order to reduce the size and make it easier for the main body 1 to rise, it is formed thin so as to make point contact with the main body 1.

The main body positioning means 20 positions the support plates 58, 58... below the guide pins 55, 55... in each section on the rotation stage 54, and positions the main body 1 with the flange 2 side facing downward. In this state, the guide pins 55, 55... are inserted through the center hole 4 drilled in the bottom surface 1a, and the specific notch 3a formed in the flange 2 is inserted into the guide column 5.
6, 56... and the support plates 58, 58
...by stacking a large number of layers on top of each other, and attaching the edge of the support plate 58 of the main body supply section to the spiral groove 6 of the screw 60.
1 and wait. During this standby period, the main body 1 held in the main body supply section is mounted on the assembly jig 2.
It is positioned in the same state as the arrangement when it is supplied onto No. 2.

To explain an example of the assembly operation of the main body 1 and the ballast 10, first, the ballast 10 is placed in a tray 63 containing a large number of ballasts 10 with the terminals 16, 16 facing downward and the mounting frame 15 facing upward. Then, the terminals are taken out with the terminals kept in the same direction, and continuously fed to the ballast supply position by an appropriate supply conveyor 64, and kept on standby at the supply position. When the assembly jig 22 conveyed on the conveyor 21 stops at the ballast supply position, the piston rod 45a of the second cylinder 45 of the ballast positioning means 19 is retracted and the support frames 29 and 30 are moved together. The two ballasts 1 are brought close together and the piston rod 50a of the third cylinder 50 is extended so that the ballast positioning means 19 is waiting at the supply position.
Place it on 0,10. Next, guide rail 4
7 is lowered to lower the ballast positioning means 19, and the positioning pins 35, 35, 36, 36 protruding from the guide plates 33, 34 are moved to the mounting frames of the individual ballasts 10, 10 as shown in FIG. 15,1
The stabilizers 10, 10 are temporarily fixed by inserting them into the positioning pin holes 18, 18... drilled in the frames 15, 5, and the lower surfaces of the electromagnetic solenoids 37, 38 are attached to the mounting frames 15,
15. After this, the electromagnetic solenoid 37,
38 is excited to attract and hold the ballasts 10, 10. When the ballasts 10, 10 are held by suction, the guide rail 47 and the ballast positioning means 19 are raised, and then the piston rod 50a of the third cylinder 50 is retracted, and the ballast positioning means 19 is moved horizontally along the guide rail 47. It is moved and placed on the assembly jig 22. and second cylinder 45
The piston rod 45a of the link 4 is extended.
2, 43 in the expansion direction around the fastening part,
The support frames 29 and 30 are connected to the support rails 27 and 28.
The guide plate 3 is moved horizontally in opposite directions along the
A predetermined interval is set between the ballasts 10 and 10 held by the ballasts 3 and 34. After this, the first cylinder 41
extending or retracting the piston rod 41a,
The column 32 and the guide plate 34 are rotated 180 degrees via the rack 40 and pinion 39, and the stabilizer 10 adsorbed thereto is inverted, and the respective stabilizers 10,
Ten terminals 16, 16, 16, 16 are arranged to face each other in a butt-like manner. After that, the guide tool 47 and the ballast positioning means 19 are lowered, and the ballasts 10, 10 held by suction are lowered and supplied onto the assembly jig 22, and as shown in FIGS. 6 and 7, the ballast 1
The mounting holes 17, 17, 17, 17 drilled in the mounting frames 15, 15 of 0, 10 are connected to the positioning pins 2 of the respective support shafts 24, 24... on the assembly jig 22, respectively.
5, 25... and the mounting frame 1.
5 and 15 are placed on the upper ends of the support shafts 24, 24... Thereafter, the electromagnetic solenoids 37 and 38 are de-energized to release the ballasts 10 and 10 from adsorption. Then, the stabilizer positioning means 19 is raised, and the guide plate 3
Positioning pins 35, 35, 3 protruding from 3, 34
6, 36 and positioning pin holes 18, 18, 18, 1
The supply and positioning of the stabilizers 10, 10 are completed. After this, stabilizer positioning means 1
9 repeats the above operation to supply the ballasts 10, 10 onto the subsequent assembly jig 22.

On the other hand, the assembly jig 22 supplied with the stabilizers 10, 10 and positioned is transferred to the next main body supply position by the conveyor 21 and stopped. When the assembly jig 22 supplied with the stabilizers 10 and 10 is stopped at the main body supply position, the uppermost main body 1 held in position by the main body supply section of the rotation stage 54 of the main body positioning means 20 is moved to an appropriate adsorption means. Hold the stabilizers 10 and 1 by suction, take them out, and place them in the assembly jig 22 in that state.
0, and insert the stabilizer mounting holes 5, 5... drilled in the main body 1 into the support shaft 2 of the assembly jig 22.
4, 24..., positioning pins 25, 25... and place the main body 1 on the stabilizers 10, 10, and release the adsorption of the main body 1 to complete the supply and positioning of the main body 1.

When the supply of the main body 1 is completed, the main body positioning means 20 rotates the screw 60 and raises the support plate 58 engaged with the screw by a predetermined amount.
The next stage main body 1 is connected to the guide pin 55 and the guide column 56,
56, the main body 1 is placed at a predetermined take-out position and placed on standby, and when the subsequent assembly jig 22 comes to the main body supply position, the main body 1 is taken out from the guide pin 55 and supplied in the above-described manner.

On the other hand, the assembly jig 22 supplied with the main body 1 is transferred to the next assembly position by the conveyor 21. In the assembly position, as shown in Figure 12,
Fastening metal fittings, such as rivets 2, by appropriate means.
3, 23... to the stabilizer mounting holes 5, 5... drilled in the main body 1 and the mounting holes 17, 17... drilled in the stabilizers 10, 10 to the support shafts 24, 24 of the assembly jig 22, respectively. Insert while pressing the positioning pins 25, 25..., and simultaneously insert the rivets 23, 23.
... is crimped to complete the assembly of the main body 1 and the stabilizers 10, 10.

In addition, in the body positioning means 20, the body 1 on the support plate 58 of the section at the body supply position is
When all the sections have been removed, the rotary stage 54 rotates intermittently to place the next section in the main body supply position, and the edge of the support plate 58 is inserted into the screw 6.
The main body 1 is supplied by being engaged with the spiral groove 61 of 0, and the main body 1 is newly stacked and placed on the empty support plate 58.

The ballasts 10, 10 and the main body 1 are successively assembled by repeating the above operations in sequence.

In the main body 1 with the ballasts 10 and 10 assembled, for example, in the next step, the end of the power line is inserted through the power insertion hole 7, and then the main body 1 is removed from the assembly jig 22 and turned over. After that, it is supplied to the assembly jig 22 again, and the flanges 2, 2, 2 of the main body 1 are placed on the supports 26, 26, 26 of the assembly jig 22,
Positioning holes 8 formed in the flanges 2, 2, 2,
8, 8 are positioned by fitting into the pin parts 26a, 26a, 26a protruding from the pillars 26, 26, 26,
Thereafter, it is transported in this state and each part is assembled.

Note that the ballast positioning means 19 and the main body positioning means 20 are merely examples, and are not limited thereto, and various modifications can be made.

As explained above, according to the present invention, the stabilizer and the main body are supplied to the assembly jig, and the stabilizer and the main body are supplied to the assembly jig using the small diameter positioning pin mounted on the support shaft of the assembly jig so as to be vertically movable as a reference. The ballast and the main body are positioned by fitting into the mounting hole drilled in the mounting frame of the ballast and the ballast mounting hole drilled in the main body, and the positioning can be performed easily and reliably.
Also, since both the stabilizer and the main body are positioned using the coupling mounting hole and the stabilizer mounting hole,
There is no need to provide any other special positioning holes, and the man-hours for manufacturing the stabilizer and main body can be reduced. moreover,
After positioning, while pressing the positioning pin with the fastening metal fitting, this fastening metal fitting is inserted into the mounting hole of the ballast and the ballast mounting hole of the main body to connect the two, so it is easy to do so without causing any misalignment. Can be reliably combined.

In this way, the method of the present invention allows the ballast and the main body to be mechanically positioned and connected easily and reliably on an assembly jig, making it possible to efficiently perform the work of connecting the two, and to automate the process. can also be easily applied. In addition, since the stabilizer is placed below and the main body is placed above, the fastening metal can be inserted and connected from the outside of the main body, and the well-shaped head side of the fastening metal is exposed to the outside, eliminating irregularities in shape. The appearance is also improved because the tip side is hidden inside.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the main body to which the assembly method according to the present invention is applied, FIG. 2 is a sectional view thereof, FIG. 3 is a plan view showing an embodiment of the ballast, and FIG. The figure is a perspective view, Figure 5 is a schematic plan view showing the process of assembling the main body and stabilizer, Figure 6 is a plan view showing an example of the assembly jig used during assembly, and Figure 7 is the same. 8 is a perspective view showing an example of the ballast positioning means, FIG. 9 is a plan view showing an example of the main body positioning means, FIG. 10 is an enlarged side view of the main part showing the positioning part, and FIG. 11 12 is a side view of the main part when positioning the stabilizer, and FIG. 12 is a partially sectional side view when the main body and the stabilizer are assembled. 1...Body, 2...Flange, 3a, 3b, 3
c... Notch, 5... Stabilizer mounting hole, 10... Stabilizer, 15... Mounting frame, 16... Terminal, 1
8... Positioning pin hole, 19... Stabilizer positioning means, 20... Body positioning means, 22... Assembly jig, 23... Fastener (rivet).

Claims (1)

[Claims] 1. Insert the mounting hole drilled in the mounting frame of the ballast with the terminal facing downwards into the small diameter positioning pin mounted on the upper end of the support shaft of the assembly jig so that it can move up and down, and then on the ballast,
Then, fit the ballast mounting hole drilled in the bottom of the lighting equipment body with the opening side downward into the positioning pin protruding from the mounting hole of the ballast mounting frame, and then stabilize the lighting equipment body. A fastening fitting is inserted into the fixture mounting hole and the mounting hole of the ballast mounting frame while pressing the positioning pin, and the lighting fixture body and the ballast are integrally fastened with the fastening fitting. How to assemble the lighting equipment body and ballast.