JP2011194557A - Automatic feed screw tightening machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such problems of a ready-made automatic feed screw tightening machine that the machine uses air or the like and is fullfledged and considerably heavy in weight, air piping and an air hose and the like are used to spoil workability, and, although electric type drills are also available, they are mostly custom-made drills.SOLUTION: A screw tightening machine used for the work screwing a plurality of screws is constructed of a spirally grooved disk provided with a spiral groove, a radially grooved disk provided with radial grooves, and a cassette accommodating these disks.

Description

  The present invention relates to an automatic supply screw tightening machine for use in construction, automobile industry, furniture shop, machine industry, electrical work, bookbinding, and the like to save labor.

When a building material board or the like is hit by a screw, an operator puts a number of screws into the mouth, picks up one by one from the mouth and sets it on a drill, and hits the board. When the screws in the mouth run out, several screws are put in the mouth again and the work is continued.
On the other hand, although an automatic supply screw tightening machine has been proposed, there is a problem that a special drill is necessary, the weight is considerably heavy, and a power cable and air are used. Therefore, the present invention proposes a screw tightening machine that can be mounted and used as it is on a commercially available drill.

Japanese Patent Laid-Open No. 9-117871

  The ready-made automatic screw feeder is an authentic screw feeder using compressed air that is full-fledged and heavy in weight, has poor workability due to the use of air piping and air hoses, etc. There were many problems.

  The automatic supply screw tightening machine according to the present invention is a screw tightening machine used for the operation of driving a plurality of screws, a spiral grooved disk provided with a spiral groove, a radial grooved disk provided with a radial groove, and these It is characterized by comprising a cassette containing the disc.

  The present invention solves the above-described problems, has a simple configuration in which a cassette is set on an off-the-shelf drill, and has a feature that it can be easily replenished by inserting the cassette after supplying screws, and is light in weight. . Further, as described above, off-the-shelf drills can be used, and labor saving and sanitization can be achieved only by preparing a low-cost, lightweight and light disk as a screw supply device.

It is the side view which showed the principal part of the automatic supply screw fastening machine which concerns on Example 1 of this invention in the cross section. (A) shows a rocking direction. It is a front view of the automatic supply screw fastening machine concerning Example 1 of the present invention. It is a disassembled perspective view of the automatic supply screw fastening machine concerning Example 1 of the present invention. It is a top view of the automatic supply screw fastening machine concerning Example 1 of the present invention. It is a reverse view of the case of the automatic supply screw fastening machine concerning Example 1 of the present invention. The mounting base is shown to the electric drill of the automatic supply screw fastening machine which concerns on Example 1 of this invention, (a) is a front view, (b) is a top view which shows a spiral shaft mechanism part. (C) shows the vertical movement of the top (5) by swinging. The spiral groove disk of the automatic supply screw fastening machine concerning Example 1 of the present invention is shown, (a) is a front view and (b) is a plane sectional view. The radial groove disk of the automatic supply screw fastening machine concerning Example 1 of the present invention is shown, (a) is a front view and (b) is a plane sectional view. (C) shows a disk rotation direction. It is a front view of a case lid of an automatic supply screw fastening machine concerning Example 1 of the present invention. It is a perspective view which shows the fixing | fixed part of the spiral shaft mechanism which concerns on Example 1 of this invention, and shows the part which can be moved up and down, and can rotate which attaches a spiral axis | shaft to a drill mounting base. (A) shows the up-down movement by rocking, (b) shows the direction of rotation by rocking. It is a perspective view which shows the drive part of the spiral shaft mechanism based on Example 1 of this invention, and shows the components which convert the linear movement by rocking | swiveling of a spiral shaft into rotation, and rotate a radial disk by rotating a ratchet wheel.

The automatic supply screw fastening machine (100) according to the first embodiment is configured as shown in FIGS. The automatic supply screw fastening machine (100) is attached to the electric drill body (200) by the cassette mounting frame (A).
The cassette mounting frame (A) is composed of a first attachment portion (4b) attached to the base (204) of the electric drill body and a second attachment portion (4a) attached to the chuck portion (201) of the drill. Yes.
The first attachment portion (4b) is composed of a cushion (4b1) and attachment bolts (4b2).
The second mounting portion (4a) is composed of a krsion (4a1), a mounting bolt (4a2), and a mounting bolt (4a3).
The cassette (B) constituting the main body of the automatic supply screwing machine includes a cassette frame (1) and its lid (1a), a spiral grooved disk (2) housed in the cassette frame, and a radial grooved disk (3 ) Etc.

  The spiral grooved disk (2) has a spiral groove (2a) in which a plurality of screws can be arranged at predetermined intervals, and the radial grooved disk (3) is a radial groove (3a) through which the screws are inserted. ), And the insertion hole (23) through which the screw (50) as shown in FIG. 1 is inserted is formed in the spiral groove by combining the spiral grooved disk (2) and the radial grooved disk (3). An insertion hole (23) is formed at the intersection of (2a) and the radial groove (3a), and a plurality of screws (50) can be arranged in the spiral groove (2a) at a predetermined interval.

In the cassette (B), the cassette (B) is inverted by a spring (1b) provided between the shaft (1c) of the first mounting portion (4a) of the cassette mounting frame (A) and the back surface of the cassette frame (B). It is pivotally supported so that it swings in a shape. (See Figs. 1 and 3)
Further, in the cassette (B), the radial grooved disk (3) is rotatably supported, and the spiral grooved disk (2) is supported in a fixed state. The radial grooved disk (3) is rotatable by the reciprocating motion of the spiral shaft mechanism (150), and the reverse pendulum-like swing of the cassette (B) is the driving source. (See Figure 3)

The reciprocating and rotating mechanism of the spiral shaft mechanism (150) is composed of the following members. (See FIGS. 3, 10, and 11)
(150) is a spiral shaft mechanism (5),
(5) is a spiral shaft, (5a3) is a rail, and (5a) is a frame that moves up and down by swinging this rail.
(5a1) is a vertically moving vehicle, (5a2) is a bolt (5b) for fixing the spiral shaft (5),
(5b1) is a feed claw that changes reciprocation into rotation;
(5b2) is a feed pawl spring that changes reciprocation into rotation (5c) is a tooth wheel that changes reciprocation into rotation,
(5c1) is a radial disk rotation key.

By rotating and driving the radial grooved disk (3) by swinging the cassette (B), the screw (50) in the spiral grooved disk (2) in the fixed state is moved along the spiral groove (2a). It is sequentially moved to the drill facing position (2d) at the outer end of the spiral groove.
A screw tightening screwdriver (205) attached to the tip of the drill drive shaft is brought into contact with the screw (50) at the drill facing position (2d) to tighten the screw (50).

Hereinafter, the usage of the automatic supply screw fastening machine according to the first embodiment will be described in detail.
(I) Explaining how to set screws to the dynamic supply screw tightening machine Place the screws in advance at each intersection of the spiral groove and the azimuth radial groove, prepare a plurality of screws, and if you have used up the previous screws, It can be loaded into a cassette and continuously operated.
(Ii) Description of installation of automatic supply screw tightening machine to drill Attach cassette receiving base to chuck part and base of commercial product drill,
(Iii) Description of tightening the first screw When the cassette case is swung away from the base frame, the screw moves and can be screwed.
(Iv) Explanation of the next second screw tightening After the completion of the first screw driving, the cassette case is separated from the base by the spring when the screw tightening machine is moved away from the object such as the wall.
At that time, the disk is rotated by a predetermined angle by the spiral shaft mechanism, and the next screw is moved to the set position.
When the first screw is pressed against the workpiece and the first screw is tightened, the cassette is pushed back by the spring, and the screw tightening operation is sequentially repeated.
(V) Load the screws on each disk in advance for the next time, prepare several, and prepare for the next work so that the speed of the work can be measured.
Therefore, work is performed by setting screws in the cassette like a stapler.
If the cassette screw runs out, set the prepared spare cassette and continue the operation smoothly. It is desirable in terms of hygiene and has good workability.
(1) Point the tip of the drill toward a wall or the like, press the switch (202) of the drill, rotate the disk cases 1 and 1c as fulcrums and close them.
(2) The spiral shaft (5) does not rotate when closed, but the rotary piece (5b) rotates and the feed pawl (5b1) also rotates, and the feed claw feeds to the teeth of the pawl wheel (5c), and the key (5c1 ) Rotates the radial disk.
(3) When the drill is released from the wall after completion of screwing, the case (A) is rotated by the fulcrum (1c) by the spring, and the case (B) is opened from the case receiver (A).
(4) When opening, the spiral shaft (5) does not rotate, but the rotating piece (5b) rotates, the feed pawl also rotates, the tooth of the tooth wheel is pushed in, the tooth wheel (5c) rotates, and the tooth wheel key (5c1) The radial disk (3) also rotates and feeds the next screw.
(5) Repeating the above steps and continuously screwing.
Embodiments of the present invention will be described below.
(A) The disc (2/3) in which the screw (50) is set in the cassette (A) is put in the cassette.
(B) Attach the cassette to the commercial product drill (200).
(C) Install a screwdriver (205) that matches the screw.
(D) Turn on the power (202) of the commercial drill and start working.

50 Commercial Screw 100 Automatic Supply Screw Fastener 150 Overall Spiral Shaft Mechanism 200 Commercial Product Electric Drill A Cassette Receiving Base B Cassette Case C Spiral Disk D Radial Disk E Cassette Case Cover 23 Screw Hole 1 Cassette Frame 1a Cassette Cover 1b Cassette Spring 1c Cassette Rotating shaft 1d Screw receiver 1e Cassette lid opening and closing butterfly plate 1f Cassette lid opening and closing clip 2 Spiral grooved disk 2a Spiral groove 2b Disk shaft hole 2c Key groove (for fixing)
3 Radial grooved disk 3a Radial groove 3b Disk shaft hole 3c Key groove (for rotation)
4 Frame bracket 4a for setting the cassette on the drill 4a1 Upper frame drill mounting belt frame 4a1 Cushion 4a2 Upper belt retaining bolt 4a3 Lower belt retaining bolt 4b Pedestal pedestal 4b1 Cushion 4b2 Base mounting bolt 5 set on the drill Spiral shaft 5a Spiral shaft fixed Top and bottom moving vehicle 5a2 Spiral shaft fixing bot 5a3 Vertical moving vehicle rail 5b Spiral shaft receiving rotation top 5b1 Feed claw 5b2 Feed claw spring 5c Claw wheel 5c1 Radial disk rotation key 200 Commercial electric drill 201 Electric drill chuck 202 Electric switch 203 Electric drill handle 204 Electric drill base 205 Driver 206 Hook joint

Claims (5)

  In a screw tightening machine used for the operation of driving a plurality of screws, it is constituted by a spiral grooved disk provided with a spiral groove, a radial grooved disk provided with a radial groove, and a cassette storing these disks. Automatic feeding screw tightening machine. A spiral grooved disk having a spiral groove in which a plurality of screws can be arranged at a predetermined interval;
A radial grooved disk having a radial groove, which is combined with the spiral grooved disk, and wherein the screw is inserted into a hole formed by the spiral groove and the radial groove when combined.
A cassette that accommodates the radial grooved disk and the spiral grooved disk, rotatably supports the radial grooved disk, and supports the spiral grooved disk in a fixed state,
A cassette mounting frame that swingably supports this cassette and is detachably attached to the drill body,
By rotating and driving the radial grooved disk by swinging the cassette, the screws in the spiral grooved disk in a fixed state are sequentially moved along the spiral groove to the drill facing position at the outer end of the spiral groove. The automatic supply screw tightening machine according to claim 1, wherein a screw tightening operation is performed by a screw tightening screwdriver attached to the tip of the drive shaft.   The said cassette mounting frame is provided with the 1st attachment part attached to the base of the said drill, and the 2nd attachment part attached to the chuck | zipper part of a drill, The any one of Claims 1-3 characterized by the above-mentioned. Automatic feeding screw tightening machine as described in.   The automatic supply screw tightening machine according to any one of claims 1 to 3, wherein a spring for swinging the cassette in a reverse pendulum shape is provided between the cassette mounting frame and the cassette. .   The automatic supply screw tightening machine according to any one of claims 1 to 4, wherein the radial grooved disk is pivotally supported by a spiral shaft mechanism in the cassette.

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