JPH065291Y2 - Work aligner for part feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a work aligning device in a parts feeder, and more particularly to a device for aligning a shaft work.

[Prior art] When a shaft work with a circular or rectangular cross section and either end face of which one end face is chamfered with an inclined surface or roundness is aligned and supplied by a vibrating parts feeder, conventionally A method of providing a hole for passing only the work, that is, a so-called figure hole in the middle of the conveyance path was adopted.

[Problems to be solved by the invention]

In the case of the figure hole, there is a problem that it is often difficult to align and supply it, although it depends on the size of the chamfer of the end face of the work, because the cost is high because it requires delicate processing.

Therefore, an object of this invention is to provide a work aligning device capable of accurately determining the presence or absence of a chamfered portion with a simple device.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention has a distribution member 4 capable of reciprocating in the transverse direction of the conveying path 3 at the end of a conveying path 3 for conveying a work 2 having one end surface chamfered 1 in tandem.
And a drive device 5 is connected to the distribution member 4, and the drive device 5 causes the axis line of the work insertion hole 6 to be the axis line of the end portion of the transport path 3. (A), the first delivery position (b) which coincides with the axis of the starting end of the delivery part 7 of the work 2 in the normal orientation, and the starting end of the delivery part 8 of the work 2 in the opposite direction. The distribution member 4 is driven so as to selectively take the three positions of the second delivery position (c) which coincide with the axis, and the distribution member 4 is moved to the determination position.
In the case of (a), the determination member 10 having the V-shaped groove 9 extending in the moving direction of the distribution member 4 on the outlet side of the work insertion hole 6
Is provided at the bottom of the V-shaped groove 9 and is provided with a detector 11 independent of the determination member 10 and capable of contacting the tip of the work 2. The tip of the detector 11 is a V-shaped workpiece 2 in the normal orientation. Provided between the position (a) for hitting the groove 9 and the position (b) for hitting the work 2 in the opposite direction, and provided with the sensors 12, 12 'for detecting that the work 2 has been inserted into the work insertion hole 6 If the detection element 11 and the work 2 are electrically connected to each other while the detection sensors 12 and 12 'are detecting the work 2, the driving device 5 causes the distribution member 4 to move to the first delivery position (roth). ), If it is non-conductive, it is configured to move to the second delivery position (C).

[Action]

The work 2 is fed into the work insertion hole 6 of the distribution member 4 from the transport path 3 with the distribution member 4 stopped at the determination position (a).
If the orientation of the workpiece 2 is normal, the tip of the workpiece 2 is the detector 1.
1 is touched and a detection signal is output. The drive device 5 of the distribution member 4 is driven by the signal, the distribution member 4 is moved to the delivery position (b), and the work 2 is delivered to the delivery unit 7.

Further, when the orientation of the work 2 is reversed, the work 2 hits the V-shaped groove 9 of the determination member 10 without contacting the detector 11, and outputs a detection signal different from the above. The drive device 5 of the distribution member 4 is driven by the signal, the distribution member 4 is moved to the second delivery position (c), and the work 2 is delivered.
Send to.

〔Example〕

FIG. 1 shows an outline of the entire parts feeder, and a spiral conveying path 15 formed on the inner peripheral wall of the bowl 14.
At the end of the conveying path 3 leading to the work, the work aligning device 1 of the present invention is provided.
6 is provided.

The work aligning device 16 is provided with a sending unit 7 for sending the works 2 in the normal direction in a line in a vertical direction, and another sending unit 8 for sending the works 2 in the reverse direction below.

The work 2 conveyed by the parts feeder is
As shown in FIG. 2 and FIG. 3, it is a cylindrical shaft or a prismatic shaft, one end surface of which is chamfered 1 and the other end surface of which is an end surface perpendicular to the axis.

Details of the work alignment device 16 are as shown in FIGS. 4 and 5.

The work aligning device 16 has a device body 17 fixed to the base of the parts feeder. The apparatus body 17 has a recess 18 facing the end of the transport path 3. A chute serving as a delivery section 7 is provided in the apparatus main body 17 separated from the recess 18 in the upper part of the transport path 3. Further, a pocket serving as a sending section 8 is provided below the transport path 3.

The distribution member 4 that moves in the vertical direction in a state orthogonal to the transport path 3 is inserted into the recess 18.

The distribution member 4 is driven by a drive device 5 such as an air cylinder fixed to the device body 17, and the work insertion hole 6 coincides with the conveying path 3 at a determination position (a), and at a position higher than that, coincides with the delivery portion 7. The first delivery position (B) and the second delivery position (C) which coincides with the other delivery unit 8 at the lowest position are selectively set at three positions.

A determination member 10 is attached to the surface of the recess 18 facing the end of the transport path 3, and the determination position is set on the determination member 10.
A V-shaped groove 9 for receiving the tip of the work 2 in (a) is formed. The V-shaped groove 9 has a slit 19 formed on the bottom surface thereof, and the detector 11 is inserted through a hole 20 formed in the apparatus body 17.
The front end of the V-shaped groove 9 faces the V-shaped groove 9 through the slit 19.

The detector 11 is formed of a conductor and is supported by the tip of an adjusting head 21 attached to the apparatus body 17 via an insulator 22. Lead wires 2 are respectively provided on the detector 11 and the distribution member 4.
When 3 and 24 are connected (see FIG. 5) and the workpiece 2 and the detector 11 come into contact with each other, they become electrically conductive and a normal signal is output to the control device.

Further, the inclined surface of the V-shaped groove 9 matches the inclination of the chamfer 1 of the work 2 as shown in FIG. Therefore, the position (a) of the work end surface when the work 2 in the normal direction contacts the V-shaped groove 9 and the position (b) when the end surface of the work 2 in the opposite direction contacts the V-shaped groove 9 are set. There is a fixed distance d between them. The tip of the detector 11 is adjusted by operating the adjusting head 21 so that it is within this interval d.

On the other hand, an air hole 25 is formed in a portion of the apparatus main body 17 facing the delivery portion 7 with a space of the recess 18 and air is blown to the work 2 at the first delivery position (b) to deliver the work. It is sent to the shishibu 7. In addition, the portion of the apparatus main body 17 that faces the delivery portion 8 with a gap of the recess 18, that is, the hole 20.
An air hole 26 is provided below the air-conditioner, and air is blown to the work 2 at the second delivery position (C) to deliver it to another delivery unit 8.

In addition, the device body 17 includes photoelectric sensors 12 and 1 including a light emitting element and a light receiving element that face each other above and below the determination member 10.
2'is provided so that the light beam is positioned in the V-shaped groove 9 at the above-mentioned position.
The mounting position is set so as to pass vertically between (b) (see FIG. 7) and the outlet of the work insertion hole 6. As a result, it is detected that the work 2 is inserted into the work insertion hole 6.

The structure of the apparatus of the embodiment is as described above, and its operation will be described next.

In the normal state, the distribution member 4 is at the determination position (a),
The work 2 extruded from the transport path 3 is inserted into the work insertion hole 6. When the tip of the work 2 comes out of the work insertion hole 6, it is detected by the photoelectric sensors 12 and 12 '. When the orientation of the work 2 is normal, that is, when the end surface having the chamfer 1 faces the transport direction, the chamfer 1 portion contacts the detector 11 before contacting the V-shaped groove 9 as shown in FIG. Electrical continuity is achieved and a normal signal is output to the control device. The control device drives the drive device 5 upward based on the normal signal to move the distribution member 4 to the first delivery position (b), and when the movement is completed, blows air from the air hole 25 to deliver the work 2. It is sent to the bending portion 7 (see arrow a in FIG. 4).

On the other hand, when the work 2 is in the opposite direction, the photoelectric sensors 12, 1
The detection by 2'is the same as in the above-mentioned case, but as shown in FIG. 7, even if the workpiece 2 comes into contact with the V-shaped groove 9, it does not come into contact with the detector 11, so that a normal signal is not output. Therefore, if the normal signal is not output even after the required time elapses after the detection signals of the photoelectric sensors 12 and 12 'are output, the control device determines that the work 2 is in the reverse direction, and the drive device 5 is moved downward. By driving, the distribution member 4 is moved to the second delivery position (c), and when the movement is completed, air is blown from the air hole 26 and is removed to the delivery portion 8 (see arrow b in FIG. 4).

In the above-described embodiment, the delivery section 8 is a pocket, and the work 2 delivered therein is returned to the bowl 14 and re-aligned. However, since the works 2 sent out to the sending-out section 8 are unified in the opposite direction, without returning them to the bowl 14, as shown in FIG.
The other delivery unit 8 may be configured by a chute parallel to one delivery unit 7 and delivered to this.

Further, in the above-described embodiment, the lead wires 23 and 24 are connected to the detector 11 and the distribution member 4, and the work 2 is connected to the detector 1.
It was designed to be electrically conductive only when it comes into contact with 1. However, according to this configuration, in the case of the reverse direction, it is possible that the outputs are of the opposite directions due to the outputs of the sensors 12 and 12 'and constant timing. It has to be judged, and it has the drawback that it takes time. Therefore, as shown in FIG.
And a lead wire 29 is connected not only to the detector 11 and the distribution member 4 but also to the determination member 10 so that the distribution member 4 and the determination member 10 are electrically connected to each other. Then, a signal for determining that the workpiece 2 is in the opposite direction may be output. If you do this,
It is not necessary to set the timing as described above, and the determination speed is improved.

[Effect of device]

As described above, the present invention has an effect that a shaft work having a chamfer at one end can be surely discriminated and aligned with a simple device.

[Brief description of drawings]

1 is a schematic plan view of a parts feeder, FIG. 2 (a) is a front view of a work, FIG. 1 (b) is a right side view thereof, and FIG.
(a) is a front view of another work, (b) is its right side view,
FIG. 4 is a vertical side view of the work aligning device, FIG. 5 is a cross-sectional plan view of the work aligning device, FIGS. 6 and 7 are enlarged cross-sectional views of the detection portion, and FIG. 8 is another example of the work aligning device. FIG. 9 is a vertical cross-sectional side view, and FIG. 9 is a cross-sectional plan view showing another example of the work aligning device. 1 ... Chamfer, 2 ... Work, 3 ... Conveyance path, 4 ... Distributing member, 5 ... Driving device, 6 ... Work insertion hole, 7 ...
Sending unit, 8 ... Sending unit, 9 ... V-shaped groove, 10 ... Judgment member, 11 ... Detector, 12, 12 '... Sensor.

Claims (1)

[Scope of utility model registration request] 1. A distribution member 4 capable of reciprocating in the transverse direction of the conveyance path 3 is provided at the end of a conveyance path 3 for conveying a work 2 having chamfered 1 on one end surface in a column, and the distribution member 4 is provided with the distribution member 4. The driving device 5 is connected to the distribution member 4 while the insertion hole 6 is provided, and the work insertion hole 6 is connected by the driving device 5.
Position where the axis line of is coincident with the axis line of the end part of the transport path 3
(A), a first feeding position (b) which coincides with the axis of the starting end of the feeding part 7 of the work 2 in the normal orientation and a first feeding position which coincides with the axis of the starting end of the feeding part 8 of the work 2 in the opposite direction Two sending positions
The distribution member 4 is driven so as to selectively take the three positions of (C), and when the distribution member 4 is at the determination position (a), the distribution member 4 is moved toward the outlet side of the work insertion hole 6 in the moving direction of the distribution member 4. V extended
A determination member 10 having a shaped groove 9 is provided, and a detector 11 that is independent of the determination member 10 and can contact the tip of the work 2 is provided at the bottom of the V-shaped groove 9, and the tip of the detector 11 is Position it between the position (a) where the work 2 in the normal direction hits the V-shaped groove 9 and the position (b) where the work 2 in the opposite direction hits,
Further, sensors 12, 12 'for detecting that the work 2 is inserted into the work insertion hole 6 are provided, and the detection sensors 12, 1'
If the detector 11 and the work 2 are electrically connected to each other while the 2'is detecting the work 2, the distribution device 4 is not electrically connected to the first delivery position (b) by the driving device 5. If necessary, the work aligner in the parts feeder is moved to the second feeding position (C).