JPH0679094U - Automatic screw assembly device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is an automatic screw assembling device capable of easily transferring a square-headed screw to a space and aligning the terminal block base at an assembling position. [Structure] The present invention has the following structure. At least at the downstream end, the screw head faces upward, and the square seat is exposed to the upper side. The magnetic screwdriver transfer arm's surrounding claw located above the upper part receives the square seat of the square seated screw at the downstream end of the alignment supply path, and the electric screwdriver tip descending from above becomes the screw head. The transfer arm and the electric screwdriver are brought into contact with each other to move to the installed position of the terminal block base to perform the installed position operation.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automatic screw assembling device capable of automatically assembling a screw with a square washer into a terminal block base such as a relay terminal block for electrical wiring.

[0002]

[Prior art]

 Relay terminal blocks for electrical wiring, etc. are equipped with screws with square seats for wiring. Since the screws with square seats have square seats, they can be transferred from the alignment supply unit to the installation position of the terminal base. There are obstacles to automation of screw assembling work such as alignment at the screw assembling position on the terminal block base, and most of the reality was manual work.

[0003]

[Problems to be solved by the device]

 Therefore, the present invention is to provide an automatic screw assembling device that can easily carry out space transfer of a square seated screw and position adjustment at a terminal block base assembling position without getting close to human hands.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has at least a downstream end formed with an alignment feed path in which a screw head faces upward and a square seat is exposed and transferred to an upper part, and an intake space matching the square seat. The transfer arm with the enclosed pawl and an electric screwdriver with a magnetic tip at the tip located above the intake space of the enclosure pawl are used. Upon receiving the square seat of the attached screw, the tip of the electric screwdriver that descends from above contacts the screw head, the transfer arm and the electric screwdriver are synchronized, move to the installation position of the terminal block base, and perform the position installation operation. The present invention provides an automatic screw assembling device.

[0005]

【Example】

 A description will be given below according to the illustrated embodiment. FIG. 1 is a diagram showing the whole of an automatic screw assembling device according to the present invention. The automatic screw assembling device includes a screw supplying device 1 for a screw with a square seat, an alignment supply path 2 from the supplying device 1, and a screw with a square seat. The transfer arm 3 having a pick-and-place function and the electric screwdriver 4 that moves in synchronization with the transfer arm 3 are provided. In the device of the embodiment, the terminal block base 5 to which the screw with a square washer is to be mounted in the Y axis direction ( A moving table 6 in the direction of the arrow shown near the terminal base 5 in the figure) is provided.

The square-headed screw supply device 1 includes a ball 7 in which a large number of square-headed screws A are housed, a track 8 formed in the ball 7, and an alignment mechanism 9 for the square-headed screws A. Then, the square seated screws A are conveyed and supplied to the aligned supply path 2 by vibration.

The alignment supply path 2 is composed of two guide rails 21. As shown in FIGS. 2 and 3, the screw head B faces upward and the square seat C guides the alignment supply path 2. It is exposed on the upper portion of the rail 21 and is transferred with the screw portion facing downward. Transportable vibration is used as the transport force. In the present invention, the above conditions are required at least at the downstream end of the alignment supply path 2, but in the embodiment, the entire structure is as described above. Incidentally, reference numeral 10 in the drawing denotes a cover of the alignment supply path 2.

The guide rail 21 of the alignment supply path 2 is cut so as to form a gap 23 in a state where one screw with a square seat A is left at the downstream end. The gap 23 is formed such that it does not hinder the transfer of the square seat screw A and that the stopper plate 24 can be inserted therein. The stopper plate 24 stops the movement of the next square seated screw A when the square seated screw A is taken into the surrounding claw 13 at the downstream end of the aligned supply path 2 and stops the taken-in square seated screw A. After the attachment screw A is transferred, the stopper function is released and the next square seated screw A is controlled to be fed to the downstream end.

The transfer arm 3 is in a flat plate state that extends horizontally from the drive mechanism 11, and has an enclosing claw 13 in which a take-in empty space 12 matching the square seat C is formed at the front end, The vicinity is formed in the wide portion 31 on the side of the aligned supply path 2 (right side in the drawing) for operating the stopper plate 24.

Since the enclosing claw 13 according to the illustrated embodiment is adapted to match the square seat C, only the part corresponding to one side of the quadrangle is opened and the three sides are closed. Of course, the upper and lower parts are open. The surrounding claw 13 is moved by the drive mechanism 11 in the directions of the arrows shown in FIGS. 2 and 3 (upper and lower Z-axis directions and left and right X-axis directions).

An electric screwdriver 4 is vertically attached to the attachment body 14 from the drive mechanism 11 above the take-in empty space 12 of the enclosure pawl 13, and the electric screwdriver 4 is synchronized with the movement of the transfer arm 3. Also moves. The tip portion of the electric screwdriver 4 has magnetism.

Next, the movements of the transfer arm 3 and the electric screwdriver 4 will be described. In the transfer arm 3, the enclosing claw 13 receives the square seat C of the square seat screw A at the downstream end of the aligning supply path 2 at the open portion, and the tip of the electric screwdriver 4 descended from above becomes the screw head B. Abut and hold the screw A with square washer.

The transfer arm 3 and the electric screwdriver 4 are synchronously moved by the drive mechanism 11 in the X-axis direction to a position above the mounting position 51 of the terminal base base 5 and descend at that position to form an angle to the mounting position 51. Place seat screw A. After that, the electric screwdriver 4 is activated to complete the assembling operation. In response to this repeated operation, the Y-axis moving table 6 is controlled and moved, and the square seated screw A is automatically incorporated into the terminal base 5 mounted on the table.

[0014]

[Effect of device]

 According to the present invention, as described above, since the screw A with the square seat is held by the surrounding claws 13 conforming to the shape of the square seat C and moved in space, the position of the square seat C does not shift and the target terminal base 5 It is possible to position it in the assembling position 51 of the above, which enables the automatic assembling device of the screw with the square seat.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an automatic screw assembling device according to the present invention.

FIG. 2 is a perspective view showing the incorporation of a square-headed screw into a transfer arm.

FIG. 3 is a perspective view showing how the screws with a square washer are assembled into the terminal base.

[Explanation of symbols]

 1. ． ． ． ． Feeder for square seated screws 2. ． ． ． ． Aligned supply path 3. ． ． ． ． Transfer arm 4. ． ． ． ． Electric screwdriver 5. ． ． ． ． Terminal block base 6. ． ． ． ． Y-axis direction moving table 7. ． ． ． ． Ball 8. ． ． ． ． Truck 9. ． ． ． ． Alignment mechanism 10. ． ． ． Cover 11. ． ． ． Drive mechanism 12. ． ． ． Capture space 13. ． ． ． Enclosure 14. ． ． ． Mounting body 21. ． ． ． Guide rail 23. ． ． ． Gap 24. ． ． ． Stopper plate 31. ． ． ． Wide part 51. ． ． ． Installation position A. ． ． ． ． Screw with square seat B. ． ． ． ． Screw head C. ． ． ． ． Corner seat

Claims (1)

[Scope of utility model registration request] 1. An aligning supply path, at least at a downstream end portion, in which a screw head is directed upward and a square seat is exposed and transferred to an upper portion,
A transfer arm having a surrounding claw formed with an intake cavity matching the square seat, and an electric screwdriver having a magnetic tip at the tip located above the intake cavity of the surrounding claw are used. At the downstream end of the alignment supply path, the square screw of the square screw is received, the tip of the electric screwdriver that descends from above contacts the screw head, the transfer arm and the electric screwdriver are synchronized, and the position where the terminal block base is installed. An automatic screw assembling device characterized by moving to the position and performing the position assembling operation.