JP2520847Y2 - Automatic tapping device for terminal fittings - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic tapping device for a terminal fitting used in a relay terminal block for electrical wiring. The terminal fitting used for the terminal block has a screw hole into which a terminal screw is screwed in the center of the flat plate portion, and the present invention is a device for automatically raising the screw hole.

[0002]

2. Description of the Related Art Conventionally, terminal fittings differ in shape, size, etc., and automatic tapping is difficult, and it is common for operators to directly operate a tapping machine for tapping terminal fittings. It was Of course, there was an automatic tapping device as shown in Utility Model Publication (SHO 62-28341).

The automatic tapping device reciprocates the feed claws in the left and right directions by an air cylinder that operates in synchronization with the vertical movement of the spindle of the tapping machine, and intermittently taps the screw holes of the work piece by one pitch. It was to be combined with an intermittent feeding device that transfers directly below.

However, the automatic tapping device according to the utility model automatically transfers the terminal block base on which the terminal fittings for tapping are mounted by the feed claw having a special shape matching the terminal block base by the pitch. However, it cannot be used for making a screw hole using only the terminal fitting.

[0005]

SUMMARY OF THE INVENTION Therefore, the present invention provides an automatic tapping device capable of continuously transferring only the terminal metal fittings sequentially without attaching to the terminal block base and easily performing intermittent transfer control for the pitch. The purpose is to provide.

[0006]

In order to achieve the above object, the present invention has a tapping machine and a terminal in which a terminal fitting having a temporary screw hole is aligned with the temporary screw hole on the upper surface side.
Above the terminal feed rails for transferring to fitting-receiving rail, established the tapping machine from the tap by the lowering of the tap to stand screws to temporary screw hole, at least the terminal fitting one pitch or more upstream terminals feed rail from tapping machine installed above, installing the intermittent feeding apparatus feeding pins are formed to transport the inserted terminal fittings at a pitch matching the width of one terminal fitting to the temporary screw hole of the terminal fitting from above by connecting state tapping machine side Then, stop the continuous terminal fittings on the terminal feed rail downstream of the tapping machine at a position that matches the pitch of the terminal fittings, and use the terminal fittings to the extent that the driving force of the intermittent feeding device releases the stopping force. It is intended to provide an automatic tapping device for a terminal fitting, which is characterized in that a terminal retainer that is biased against it is installed.

[0007]

Embodiments will be described below with reference to the illustrated embodiments. Figure 1
FIG. 1 is an overall front view of an automatic tapping device according to the present invention, which includes a terminal fitting supply device 1, a terminal feed rail 2, an intermittent feed device 3, a tapping machine 4, a terminal retainer 5 and a terminal fitting receiver. And the rail 6.

The terminal metal fitting supplying device 1 supplies the terminal metal fittings to the terminal feeding rails 2 from the balls 7 in which a large number of terminal metal fittings are accommodated, through the track formed in the balls 7 and the terminal metal fitting alignment mechanism. The terminal metal is conveyed by vibration.

The terminal feeding rail 2 is a rail for transferring the terminal metal fitting A from the terminal metal fitting supply device 1 to the tapping machine 4, and is automatically transferred from the terminal metal fitting supply device 1 side to near the tapping machine 4. However, in the vicinity of the tapping machine 4, the intermittent feeding device 3
It is installed horizontally for forced transfer.
On the terminal feed rail 2, the terminal fitting A is transferred with the horizontal surface portion to be tapped up. In addition, a temporary screw hole B (only a hole is drilled and not tapped) is already formed on the horizontal surface of the terminal fitting A.

The tapping machine 4 is installed above the terminal feed rail 2 at a position where the tap 9 can be tapped in the provisional screw hole B when the tap 9 is lowered. The tapping machine 4 is a normal tapping machine and need not be unique to the present invention. A cooling oil supply pipe 11 is installed near the tap 9 of the tapping machine 4.

Above the terminal feed rail 2 upstream of the tapping machine 4, the provisional screw hole B of the terminal fitting A is provided from above.
An intermittent feeding device 3 is provided in which a feeding pin 10 for inserting the terminal metal fitting A is formed. The intermittent feeding device 3 includes a drive unit 31 and an operation arm 3 extending from the drive unit 31.
2. Feed pin 10 formed at the tip of the operating arm 32
The feed pin 10 taps the terminal fitting at a pitch that matches the width of one terminal fitting.
It has a role of transferring to the side, and the operating procedure is shown in order from FIG. 5 to FIG.

The operation of the feed pin 10 will be described with reference to FIG. In FIG. 5, the tapping work of the terminal metal fitting A3 immediately below the tap 9 is completed, and the tap 9 is raised. At this time, the feed pin 10 descends and descends with respect to the two upstream terminal fittings A5, and the tip of the feed pin 10 is inserted into the temporary screw hole of the terminal fitting A5. Subsequently, as shown in FIG. 6, the feed pin 10 transfers one terminal fitting A5 to the tapping machine 4 side while the tap 9 is on standby. At this time, the provisional screw hole of the terminal fitting A4 is located immediately below the tap 9. The arrows shown in the figure indicate the operating directions of the tap 9 and the feed pin 10.

Subsequently, while the tap 9 descends and the terminal fitting A4 is being tapped, the feed pin 10 ascends as shown in FIG. 7, and as shown in FIG. Retreat and locate right above the temporary screw hole of the next terminal fitting A6. By repeating this operation, the intermittent feeding operation is continuously performed.

Downstream of the tapping machine 4 of the terminal feeding rail 2, the terminal fitting is stopped at a position adapted to the pitch of the terminal fitting, and the stopping force is released by the driving force of the intermittent feeding device 3. A terminal retainer 5 is installed which is biased against the terminal fitting. In the illustrated embodiment,
As shown in FIG. 3, the terminal retainer 5 includes a separately-installed mount 51, a retainer arm 52 extending from the mount 51 to the terminal feeding rail 2 side, and a retainer ball 53 attached to the tip of the retainer arm 52. The pressing ball 53 presses the screwed terminal metal fitting A1 in FIG.

Reference numeral 12 in the drawing denotes an air blowing pipe for forcibly blowing the terminal from the terminal feeding rail 2 at the end of the terminal feeding rail 2 and dropping it into the terminal metal receiving rail 6.

[0016]

As described above, according to the present invention, an intermittent feeding device having a feed pin inserted into a temporary screw hole of a terminal fitting and moved at a predetermined pitch is installed upstream of a tapping machine, and a terminal feeding rail is provided. Terminals that are urged against the terminal fittings so that the terminal fittings are stopped at a position that matches the pitch of the terminal fittings downstream of the tapping machine and that the stopping force is released by the driving force of the intermittent feeding device. By installing the retainer, it is possible to tap the terminal fittings continuously without using the terminal block base, and only with the terminal fittings, and it is possible to easily perform intermittent transfer control for the pitch.

[Brief description of drawings]

FIG. 1 is an overall front view of an automatic tapping device according to the present invention.

[Figure 2] Front view of the tapping section

FIG. 3 is a plan view of the tapping portion.

FIG. 4 is a partially enlarged explanatory diagram.

FIG. 5 is an explanatory view showing a state immediately before the transfer of the terminal fittings.

FIG. 6 is an explanatory view showing a state in which the terminal fittings are transferred just below the taps.

FIG. 7 is an explanatory diagram during tapping.

FIG. 8 is an explanatory diagram at the end of tapping

[Explanation of symbols]

1. . . . . Terminal fitting supply device 2. . . . . Terminal feed rail 3. . . . . Intermittent feeding device 4. . . . . Tapping machine 5. . . . . Terminal retainer 6. . . . . Rails for receiving terminal fittings 7. . . . . Ball 9. . . . . Tap 10. . . . Feed pin 11. . . . Cooling oil supply pipe 12. . . . Air blowing pipe 31. . . . Drive unit 32. . . . Working arm 51. . . . Mounting base 52. . . . Holding arm 53. . . . Pressing balls A, A1, A2, A3, A4, A5, A6. . . Terminal fitting B. . . . . Temporary screw hole

Claims (1)

(57) [Scope of utility model registration request] 1. A tapping machine and a terminal in which a terminal fitting having a temporary screw hole is aligned with the temporary screw hole on the upper surface side.
Above the terminal feed rails for transferring to fitting-receiving rail, established the tapping machine from the tap by the lowering of the tap to stand screws to temporary screw hole, at least the terminal fitting one pitch or more upstream terminals feed rail from tapping machine installed above, installing the intermittent feeding apparatus feeding pins are formed to transport the inserted terminal fittings at a pitch matching the width of one terminal fitting to the temporary screw hole of the terminal fitting from above by connecting state tapping machine side Then, stop the continuous terminal fittings on the terminal feed rail downstream of the tapping machine at a position that matches the pitch of the terminal fittings, and use the terminal fittings to the extent that the driving force of the intermittent feeding device releases the stopping force. An automatic tapping device for terminal fittings, which is equipped with a terminal holder that is urged against it.