JPH0435067Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a parts delivery tool for delivering parts such as bolts from a parts feeder to a parts socket, and in particular, a delivery tool equipped with an air bleed hole to ensure the delivery of parts. Regarding.

[Conventional technology]

Conventionally, systems have been developed in which parts for various types of work are fed to parts sockets at work (manufacturing) sites using parts feeders. Parts are generally transferred from the parts feeder to the parts socket via a parts transfer tool.

FIG. 4 shows a bolt delivery tool 1 as a conventional parts delivery tool. As shown in the figure, the bolt delivery tool 1 is installed on a support base 2, and has a bolt receiving groove (parts receiving groove) 4 opened toward the outlet portion 3a of the bolt feeder (parts feeder) 3.

The bolt receiving groove 4 is formed in a bag shape, and includes a reduced diameter cylindrical part 4a formed at the inner part of the bag to hold the threaded part 5a of the bolt (part) 5, and a diameter-reduced cylindrical part 4a formed inside the bolt receiving groove 4 of the bolt 5. The bolt 5 is configured to have an enlarged diameter cylindrical portion 4b formed in the opening to guide the bolt 5 when entering the hole.

A tapered guide surface 4c and a bolt head 5b are provided between the reduced diameter cylindrical portion 4a and the enlarged diameter cylindrical portion 4b.
A contacting annular plane 4d is formed.

On the other hand, the bolt feeder 3 is formed into a tubular shape, and is adapted to feed the bolt 5 to its outlet portion 3a by air blowing from a compressed air supply source (not shown). The bolt 5 is aligned with the opening of the groove 4 and sent into the bolt receiving groove 4 by air blowing.

In addition, the outer surface of the bolt socket (parts socket) 6 that receives the bolt 5 from the bolt delivery tool 1 is
It is formed in a cylindrical shape corresponding to the enlarged diameter cylindrical part 4b so that it can be inserted into the enlarged diameter cylindrical part 4b of the bolt receiving groove 4, and a tapered surface corresponding to the tapered guide surface 4c is formed at the tip. ing. Furthermore, the bolt head 5b of the bolt 5 is attached to the tip of the bolt socket 6.
A groove 6a matching the shape of the bolt head 5b (for example, if the bolt head 5b has a hexagonal column shape, a hexagonal cylindrical groove) 6a is provided so that the bolt can be inserted into the groove 6a. is equipped with a bolt holding magnet 6b.

With this configuration, the bolt 5 is transferred from the bolt feeder 3 to the bolt socket 6 in the following manner.

In addition, the bolt 5 has washers 5c, 5 at the required locations.
d is attached.

First, set the bolt feeder 3 so that it is aligned with the opening of the bolt receiving groove 4 of the bolt transfer tool 1,
The bolt 5 fed by the air blow is
Insert the bolt into the bolt receiving groove 4 from a. This results in
The bolt 5 is held by the bolt delivery tool 1 with the threaded portion 5a inserted into the diameter-reduced cylindrical portion 4a and the bolt head 5b in contact with the annular plane 4d.

Next, remove the bolt feeder 3 from the opening of the bolt receiving groove 4 and replace it with the bolt receiving groove 4.
Insert the tip of the bolt socket 6 into the enlarged diameter cylindrical portion 4b. At this time, by entering the bolt socket 6 while rotating it, the bolt socket 6
The bolt head 5b is fitted into the groove 6a by aligning the phase of the groove 6a with the phase of the bolt head 5b.

The rotation of the bolt socket 6 is carried out using the same rotational operation that rotates the bolt 5 in order to screw the bolt 5 delivered to the bolt socket 6 into the required position in the work process after the bolt delivery. Therefore, the rotational speed of the bolt socket 6 when the bolt head 5b is inserted into the groove 6a is relatively high.

Then, the bolt 5 fitted into the groove 6a is attached to the bolt holding magnet 6b inside the bolt socket 6.
is attracted and held within the groove 6a.

Thereafter, the bolt socket 6 is retracted from the bolt delivery tool 1 and the required work process is started.

[Problem that the invention attempts to solve]

However, in the conventional parts delivery tool 1 as described above, the bolt receiving groove 4 is bag-shaped, so when the bolt 5 is fed from the bolt feeder 3 into the bolt receiving groove 4, the blown air is also removed. It gets into the bolt receiving groove 4. Therefore, the air in the bolt receiving groove may prevent the bolt 5 from entering the bolt receiving groove 4, and the bolt 5 may not be delivered into the bolt receiving groove 4 in a desired posture.

Moreover, even if the bolt 5 is delivered in the required posture in the bolt receiving groove 4, if the air blow from the bolt feeder 3 is stopped, the empty space a deep inside the bolt receiving groove 4
Since the air that has entered is in a compressed state, the air in the space a may push the bolt 5 out of the bolt receiving groove 4 like an air spring. This has become a problem as it is not possible to receive or receive the items.

The present invention is an attempt to solve the above-mentioned problems, and the air in the parts receiving groove is discharged when the part enters the parts receiving groove using an air bleed hole. To provide a parts delivery tool with an air bleed hole, which can always ensure delivery of parts from a parts feeder to a parts socket while ensuring entry of parts into a groove and retention of parts in a parts receiving groove. With the goal.

[Means for solving problems]

For this reason, the parts delivery tool with an air bleed hole of the present invention is equipped with a parts receiving groove that receives and holds the parts sent from the parts feeder.
A parts delivery tool that transfers the part held in the part receiving groove to the parts socket has an air bleed hole that discharges the air in the part receiving groove to the outside when the part enters the part receiving groove. It is characterized by the fact that it was established.

[Effect]

In the above-mentioned parts delivery tool with an air bleed hole of the present invention, the parts enter the parts receiving groove provided in the parts delivery tool from the parts feeder and are held in the required posture in the parts receiving groove. When the part enters, excess air in the part receiving groove is discharged to the outside from the air vent hole, and the air flow at this time promotes the part to enter the part receiving groove.
Thereafter, the part is transferred from the part receiving groove to the parts socket.

〔Example〕

Hereinafter, a parts delivery tool with an air vent hole as an embodiment of the present invention will be explained with reference to the drawings.
Fig. 1 is a sectional view thereof, and Figs. 2 a to e are sectional views showing the procedure of parts delivery by this device.
Figure 3 is a flowchart of bolt (parts) delivery work using this device.

As shown in FIG. 1, a bolt delivery tool 11 with an air bleed hole as a parts delivery tool with an air bleed hole of this embodiment is installed on a support base 2, and is installed on the exit part 3a side of a bolt feeder (parts feeder) 3. A bolt receiving groove (parts receiving groove) 14 is formed which is open toward.

The bolt receiving groove 14 includes a first tapered guide surface 14d formed in the opening, and a first enlarged diameter cylinder that is formed following the first tapered guide surface 14d and guides the bolt head 5b. portion 14b, a second tapered guide surface 14c formed subsequent to the first enlarged diameter cylindrical portion 14b, and further a second tapered guide surface 1.
The first diameter-reduced cylindrical portion 14a continues further back from 4c.
It is composed of the following.

A second enlarged diameter cylindrical portion 14e is located further back than the first diameter reduced cylindrical portion 14a.
4f, and air vent holes 12, 12 are provided from this second enlarged diameter cylindrical portion 14e to the outer surface of the bolt delivery tool 11.

Note that each air vent hole 12 is provided to be inclined so as to have a blow direction component from the outlet portion 3a into the bolt receiving groove 14.

Further, an air jet port 13 is provided in the second enlarged diameter cylindrical portion 14e so as to be coaxial with the center axis of the bolt receiving groove 14 and facing the bolt feeder 3 side. Compressed air from an air supply source 20 is sent to the air outlet 13 by opening a valve (not shown), so that the air can be blown into the bolt receiving groove 14.

Further, on the outer periphery of the front part (on the bolt feeder 3 side) of the bolt delivery tool 11, brackets 15a and 15b are provided.
A light emitter 16 and a photo sensor 17 are provided to face each other via the light emitter 16 and the photo sensor 17. The light emitter 16 is arranged so that its optical axis passes through the position of the bolt 5 when the bolt 5 is held in the bolt delivery tool 11 near the central axis of the bolt receiving groove 14, and the photo sensor The position of 17 is also set appropriately.
In addition, an optical path through hole 18,
18 are provided.

A valve 21 interposed between the compressed air supply source 20, the bolt feeder 3, and the air outlet 13 is connected to the outside of the bolt delivery tool 11 in response to a detection signal from the photo sensor 17. A control system 19 is provided which controls air supply by sending appropriate opening/closing signals.

On the other hand, the bolt feeder 3 is formed into a tubular shape, and is adapted to feed the bolt 5 to its outlet portion 3a by air blow from a compressed air supply source 20 connected via a valve 21. The bolt 5 is aligned with the opening of the bolt receiving groove 14 of the bolt delivery tool 11 and sent into the bolt receiving groove 14 by air blowing.

For this reason, the bolt feeder 3 has an outlet portion 3a.
the bolt receiving groove 14 by bringing it close to the bolt delivery tool 11.
A drive system (not shown) is provided for aligning the outlet portion 3 a with the bolt transfer tool 11 and separating the outlet portion 3 a from the bolt delivery tool 11 .

Further, the outer surface of the bolt socket (parts socket) 6 that receives the bolt 5 from the bolt delivery tool 11 is formed into a cylindrical shape corresponding to the expanded diameter cylindrical portion 14b so that it can be inserted into the expanded diameter cylindrical portion 14b of the bolt receiving groove 14. A tapered guide surface 14 is provided at the tip.
A tapered surface corresponding to c is formed. Furthermore, the tip of the bolt socket 6 is provided with a groove portion (for example, a groove portion matching the shape of the bolt head 5b) so that the bolt head 5b of the bolt 5 can be inserted thereinto.
If is a hexagonal column, then the groove is in the shape of a hexagonal cylinder) 6a
A bolt holding magnet 6b is provided at the inner part of the groove 6a.

This bolt socket 6 also has a bolt socket 6.
A drive system (not shown) is provided to move the bolt socket 6 close to the bolt delivery tool 11 and insert the groove 6a into the bolt receiving groove 14, and to move the bolt socket 6 away from the bolt delivery tool 11.

Note that feeding bolt confirmation sensors (not shown) are provided at required locations at the entrance of the bolt feeder 3 in order to confirm whether or not the feeding bolts are set, and further, at the outlet portion 3a of the bolt feeder 3, A feeder confirmation sensor (not shown) is provided to detect whether or not the bolt is aligned with the vicinity of the bolt receiving groove 14.

Further, the bolt socket 6 has a bolt receiving groove 14.
A socket position sensor (not shown) is provided to detect whether the bolt has entered the bolt receiving groove 14 or has retreated from the bolt receiving groove 14.

Furthermore, the bolts 5 are fitted with washers 5c at required locations.
5d is attached.

Since the parts delivery device with air vent holes as an embodiment of the present invention is constructed as described above, the bolts 5 are delivered as shown in FIGS. 2a to 2e.

First, set the bolt 5 at the feeder inlet.
As a result, the bolt receiving groove 14 of the bolt delivery tool 11
If the interior is empty, the photo sensor 17 activates the light emitter 16.
The control system 19 detects the light and sends a signal that the inside of the delivery tool is empty to the control system 19, and upon receiving this, the control system 19 sends a required drive signal to the air supply source 20 to connect the valve 21 and the bolt feeder 3. let As a result, air is blown into the bolt feeder 3, and the bolt 5 is sent to the outlet portion 3a by this air blow (see FIG. 2a).

Then, the bolt 5 enters into the bolt receiving groove 14 of the bolt delivery tool 11 by further air blowing. At this time, the air bleed hole 12 is the air blow bolt receiving groove 1.
Bolt receiving groove 1 of bolt 5 by promoting the flow into 4
4. Ensure entry into the interior. Further, the bolt receiving groove 14 is not provided with an annular plane that can come into contact with the bolt head 5b, and the first diameter-reduced cylindrical portion 14a and the first
Since only the second tapered guide surface 14c is formed between the bolt 5 and the enlarged diameter cylindrical portion 14b, the bolt 5 can enter the bolt receiving groove 14 more smoothly.

Next, the photo sensor 17 confirms whether the bolt 5 has been transferred to the bolt transfer tool 11. That is, when the bolt 5 enters the bolt receiving groove 14, the optical path of the light emitter 16 is blocked by the bolt 5, and the delivery of the bolt 5 to the bolt delivery tool 11 is confirmed [see FIG. 2b].

This confirmation signal is sent to the drive system and control system 19 (not shown) of the bolt feeder 3 and bolt socket 6, the valve 21 is closed, the air blow to the bolt feeder 3 is stopped, and the bolt feeder 3 is retreated from the bolt delivery tool 11. Instead, the bolt socket 6 enters inside the bolt receiving groove 14 of the bolt delivery tool 11 [see FIG. 2c].

At this time, unnecessary air in the bolt receiving groove 14 is discharged to the outside through the air bleed hole 12, so even if the air blow of the bolt feeder 3 is stopped, the bolt 5 will not come out from within the bolt receiving groove 14. do not have.

When the bolt socket 6 enters the bolt receiving groove 14 and the groove 6a approaches the bolt head 5b,
The bolt socket 6 is rotated at an appropriate speed along with the advancing operation, and the bolt head 5b is inserted into the groove 6a by aligning the phases of the groove 6a and the bolt head 5b (see FIG. 2d).

The rotational speed of the bolt socket 6 at this time is lower than the rotational speed of the bolt socket 6 that is performed when screwing the bolt 5 into the required location in the work process after the bolt 5 is passed to the bolt socket 6. This makes it easier to fit the bolt head 5b into the hole.

When the bolt socket 6 attempts to move backward with the bolt 5 still inserted, the position detection sensor of the bolt socket 6 sends a signal to the control system 19 indicating that the bolt 5 is attached to the bolt socket 6. Based on this, the valve 21 is driven, the air outlet 13 and the air supply source 20 communicate with each other, and air is blown from the air outlet 13 into the bolt receiving groove 14 . At this time, the valve 21 between the bolt feeder 3 and the compressed air supply source 20 is closed, and the two are not communicating with each other.

Then, with the air blow from the air outlet 13, the bolt socket 6 moves back together with the bolt 5, and the bolt socket 6 moves on to the next work step (see FIG. 2e).

The flow of the above-mentioned work process is shown in FIG. 3.

In this way, the bolt socket 6 is reliably transferred to the bolt 5 with the help of the blow from the air outlet 13. Note that if the transfer of the bolts 5 from the bolt feeder 3 to the bolt transfer tool 11 is not completed, the photo sensor 17 detects each of them, and the control system 19
sends a drive signal to the valve 21 to again communicate the bolt feeder 3 and the air supply source 20, blows air into the bolt feeder 3, and urges the bolt 5 to be delivered to the bolt delivery tool 11. If the delivery of the bolt 5 to the bolt delivery tool 11 is not completed even after repeating such air blowing from inside the bolt feeder 3 a predetermined number of times (for example, 3 times), the control system 1
An alarm is issued from 9, and the operation of the entire delivery system is stopped at the same time.

When the delivery of the bolt 5 to the bolt socket 6 is completed, the bolt 5 is again fed from the bolt feeder 3 to the bolt delivery tool 11, and the above cycle is repeated.

In this way, the parts delivery tool with air vent holes of this embodiment not only transfers the bolt 5 from the bolt feeder 3 to the bolt delivery tool 11, but also transfers the bolt 5 from the bolt feeder 3 to the bolt delivery tool 11.
The delivery from the bolt delivery tool 11 to the bolt socket 6 is performed through the air bleed hole 12 and the air outlet 13.
Bolt 5
The delivery from the bolt feeder 3 to the bolt socket 6 via this bolt delivery tool 11 becomes extremely reliable.

Furthermore, the transfer of the bolt 5 is detected by the photo sensor 17, and the transfer of the bolt 5 can be performed automatically based on this detection, which greatly contributes to unmanned work (robotization).

In addition, even if there is a problem in the delivery of the bolt 5, the photo sensor 17 will detect this and issue an alarm, as well as stopping the delivery system, so that the problem in the delivery system can be quickly recovered. This will prevent damage to various parts of the delivery system.

In this embodiment, a bolt is used as an example of a part, but this device can be widely used for transferring other working parts.

[Effect of idea]

As described in detail above, the parts delivery tool with an air vent hole of the present invention is provided with a parts receiving groove for receiving and holding the parts sent from the parts feeder, and the parts are held in the parts receiving groove. The parts delivery device that transfers the above-mentioned parts to the parts socket has a simple configuration in which an air vent hole is provided to discharge air in the parts-receiving groove to the outside when the part enters the parts-receiving groove. Parts can be reliably delivered from the parts feeder to the parts delivery tool, and the parts can be delivered to the parts socket without any delay through the parts delivery tool.

[Brief explanation of drawings]

Figures 1 to 3 show a parts delivery tool with an air vent hole as an embodiment of the present invention. Figure 1 is a cross-sectional view of the device, and Figures 2 a to e are steps for parts delivery using this device. 3 is a flowchart of a bolt (parts) delivery operation using this device, and FIG. 4 is a sectional view showing a conventional parts delivery tool. 2... Support base, 3... Bolt feeder (parts feeder), 3a... Exit part, 5... Bolt, 5a
...Screw part, 5b...Bolt head, 5c, 5d...
... Washer, 6... Bolt socket (parts socket), 6a... Groove, 6b... Bolt socket holding magnet, 11... Bolt delivery tool with air vent hole as parts delivery tool with air vent hole,
12... Air vent hole, 13... Air outlet, 14
...Bolt receiving groove (parts receiving groove), 14a...1st
Reduced diameter cylindrical part, 14b...first enlarged diameter cylindrical part, 1
4c...Second tapered guide surface, 14d...First
Tapered guide surface, 14e... second enlarged diameter cylindrical part, 14f... tapered surface part, 15a, 15b...
Bracket, 16... Light emitter, 17... Photo sensor, 18... Light path through hole, 19... Control system,
20...Air supply source, 21...Valve.

Claims (1)

[Scope of utility model registration request] A parts delivery tool is provided with a parts receiving groove that receives and holds parts sent from a parts feeder, and delivers the parts held in the parts receiving groove to a parts socket. A parts delivery tool with an air bleed hole, characterized in that an air bleed hole is provided for discharging air in the parts receiving groove to the outside when the part receiving groove enters.