JPS62297002A - Material feed device for lathe - Google Patents

Abstract

PURPOSE:To improve production efficiency, by a method wherein, when a material is conveyed to a lathe by means of a material conveying member to complete positioning chuck, the conveying member is moved backward, and vibration is prohibited against production. CONSTITUTION:An instruction on the feed of a material 20 is outputted from an NC device 30 to a controller 29, a screw lever 27 is rotated through rotation of a motor 28, and a conveying member 22 is pushed rightward with the aid of a moving member 25. The material 20 is brought into contact with a stopper 48 through the working of the member 22 for positioning, the member 22 is chucked by means of a chuck 24 to complete the feed motion of the material. Control is effected so that the conveying member 22 is separated away from the material 20, vibration produced through the conveying member 22 during a machining work is prevented, and high speed machining is practicable.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a material supply device for a lathe for supplying a material such as a bar to a processing section of a lathe.

``α* h# iFt 1 In a lathe that processes materials such as bars, a material supply device is installed adjacent to it as is known, and the materials such as bars are delivered one by one from this material supply device to the processing section of the lathe. It is configured so that parts can be processed continuously by being supplied.The material supply device is equipped with a vibration-proof holding section (vibration-isolating device) to stably hold the material, which is the workpiece. It is customary to have

The configurations of this vibration isolator include (1) when supporting the material via rollers, (when supporting the material via two belts), and (3) isolating the material via fluid such as oil. There are cases of so-called hydro type.

In the case of the configurations (1) and (,'Z) above, one end of the material to be processed is supported by the char 2 of the lathe, and the other end is supported by the pushing rod of the material supply device. By supporting the intermediate portion of the material to be processed with a roller or belt, vibration of the material to be processed is prevented. As a conventional technique employing such a configuration means, for example, devices as shown in FIGS. 5a, b, and c are known.
This device is disclosed in the product catalog published by Alps Tool Co., Ltd. (Product code: ANF-65R1 Product Bar)
As shown in FIG. One end (tip part) is held by a bar supply part 3 (see Fig. 5C) for transferring and feeding into a processing machine (lathe) one by one, and a collet chuck part (not shown) on the processing machine side. Steady rest part 4 for holding the other end (rear end) of the bar material
It is composed of the following. The bar supply section 3 is, for example, shown in FIG.
As shown in , it is composed of a push rod 5, a chain 6 for driving the push rod 5 forward and backward, a drive sprocket 7 for driving the chain 6, etc., and a drive tin rocket 7 is controlled by a motor (not shown). By rotating the push rod 5 in the opposite direction,
It is set so that it can be operated forward and backward. Through this push rod 5, the bars can be fed one by one to the processing machine side. Reference numeral 8 indicates an operation box, reference numeral 9 indicates a control box, and reference numeral 10 indicates a support stand.

According to the automatic lathe in which the bar supply device 1 having the above configuration is arranged adjacently, the bars stocked on the inclined shelf section 2 can be supplied one by one to the processing machine side to continuously machine parts. During machining, one end of the bar is held by the collet part on the processing machine side, and the other end is held by the steady rest part 4 on the bar feeder 1 side while preventing vibration. can do.

In addition, in the case of the hydro type (3) above, one end and the other end of the material to be processed are supported in the same way as in (1) and (i), and the material supply part is configured in a tube shape, and the oil is The material to be processed is put into the filled tube in a sealed state, and the material to be processed is fed while being vibration-proofed by the centripetal force generated by the rotation of the material.

[Problems to be Solved by the Invention] However, the above prior art has the following problems. That is, in a structure in which vibration isolating support is provided via rollers or belts, the push rod 5 is used as shown in FIG. 5C.
Since the bar (material) 11 is pushed out through the press and the rear end 11a of the material 11 is pressed and held by the push rod 5, the push rod 5 also rotates together with the material 11 during processing.
There was a problem that the push rod 5 caused vibration.

Further, in the case of the hydro type, there is a problem that the structure of the vibration isolation mechanism is extremely complicated and expensive.

The present invention has been made in view of the problems of the prior art described above, and it is an object of the present invention to provide a material supply device for a lathe that can reliably prevent vibrations with a simple structure.

[Means for Solving the Problems] FIG. 1 shows a conceptual diagram of the present invention. As shown in the figure, in the present invention, the workpiece material 20 is Transport members that move forward and backward (Oshibayashi)
The transfer control mechanism section 21 is configured to be configured to be able to transfer and supply the transfer member 22 to the chuck 24 of the lathe 23 and to be controlled so as to be separated from the transfer member 20. It is composed of a guide rod 26 that supports the guide, a screw rod 27 and a motor 28 for moving the movable member 25, and a controller 29. The lathe 23 side is connected to an NC device 30, and the N
C device 30 and controller 29 are connected to each other.

[Function] In the above configuration, by controlling the forward and reverse rotation of the motor 28 driven via the controller 29,
The transfer member 22 can be moved forward and backward in the direction of the chuck 24 of the rotation fi 23. Also, the workpiece material 20 is placed in the chuck 2 of the rotary i23.
4, the transfer member 22 is controlled to be separated from the material 20 to complete the material supply, and a completion signal can be sent to the lathe-side NC device 30 via the controller 29.

[Example] Hereinafter, an example of the present invention will be described in detail using the drawings. In the following description, the same components as those shown in FIG. 1 are given the same reference numerals.

FIG. 2a is a perspective view showing a material supply device 31 for a lathe according to the present invention. As shown in FIG. 32, a push rod (transfer member) 22 for pushing out (transferring) the materials 20 sent out one by one from the material placement section 32 toward the chuck section of the lathe 23, and a push rod 22 for pushing out (transferring) the materials 20 sent out one by one from the material placement section 32 toward the chuck section of the lathe 23; It is composed of a push line control mechanism section 21 and the like for advancing and retreating in the direction of the movement.

The material placement unit 32 is located at the frontmost part (closer to the push rod 22) of the placement table 33 that supports a plurality of materials 20 in an aligned state and the materials placed and supported on the A8 table 33. It is composed of a material feeding mechanism section 35 for transferring the material 20 onto a supply stage 34. The mounting table 33 is composed of board members that are erected in parallel with appropriate distance from each other, and the side surface thereof is shaped into an inclined surface 33a so that the material 20 rolls in the direction of the supply table 34 under its own weight. It is set up. A locking part (stopping part) 36 is provided at the front end of the placing table 33 to lock the material 20 falling under its own weight along the inclined surface 33a. The material 20 is regulated so as not to fall through the locking portion 36. The parallel mounting tables 33.33 are connected at their lower surfaces via a connecting base 37, and the upper part of the connecting base 37 is used to store materials placed on the loading tables 33. A material feeding mechanism section 35 is provided for feeding the material 20 closest to the feeding table 34 onto the feeding table 34. The material feeding mechanism section is composed of a feeding arm 39 that is rotatably supported on a mounting table 33 via a support shaft 38, and a cylinder 40 that rotates the feeding arm 39. The delivery arm 39 is set to be able to be rotated through expansion and contraction. The tip of the sending arm 39 is set to be located below the frontmost material 20 of the materials on the mounting table 33;
In other words, the delivery section 42 is configured so that the material 20 located closest to the supply table 36 can be lifted from the mounting table 33 and sent onto the supply table 34 . A V-shaped groove is formed on the upper surface of the supply table 34, and is designed to stably hold the material 20 in this V-shaped groove. Note that the supply table 34 may be configured so that two rollers 43.43 are brought into contact with each other as shown in FIG. 2, and the material 20 is supported on these rollers 43.43. good.

The movement of the push rod 22 that pushes out the material 20 toward the chuck section of the lathe 23 is controlled via the push rod control mechanism section 21 . The push rod control mechanism section 21 controls the push rod 2
2, a guide rod 26 that guides and supports the movable member 25, and a screw hole portion 4 of the movable member 25.
4, screwed together with the screw punch 27, and drive the screw punch 27 in forward and reverse rotation.
O4-opening: 111 It is composed of a controller (candy material machine controller) 30. That is, the control structure is such that the motor 28 is controlled via the controller 30 to drive the screw punch 27 in forward and reverse rotation, and the push rod 22 is moved forward and backward toward the chuck portion of the lathe 23 via the movable member 25. It is. Reference numeral 45 indicates a frame that supports the screw punch 27, the guide rod 26, and the motor 28. 46.47 indicates the movable member 25
This is a switch for regulating the operating stroke of the movable member 25 by engaging with the movable member 25. The material 20 fed out onto the supply table 34 via the material feeding mechanism 35 is transferred and fed to the chuck (collet chuck) 24 of the lathe 23 via the push rod 22, as shown in FIG. It is set so that one end of the is held by the chuck 24.

Reference numeral 48 indicates a stopper for regulating the amount of protrusion of the material 20 supplied and held by the chuck 24 from the chuck 24 to a constant value. Reference numeral 49 indicates a turret t-ra for indexing the cutter in the lathe 23, a structure in which the spindle 50 in the lathe 23 is rotatably supported on the main body support part 51, and a collet chuck 24 is opened and closed. Details of the mechanism are shown in Figures 4a and 4b.

As shown in FIG. 4a, the spindle 50 is supported by the main body support portion 51 via a plurality of bearings 52, 53. A pulley 5 is attached to the spindle 50 via a key 54.
5 is fixed, and the pulley 55 is interlocked with a drive pulley (not shown) via a bell (V-belt) 56. A sleeve 57 for opening and closing the collet chuck 24 is slidably installed inside the spindle 50.

This sleeve 57 is configured to be movable in the direction of the collet chuck 24 (in the left-right direction in the figure) via the claw portion 58. The mechanism that operates the claw portion 58 to move the sleeve 57 is a cam roller portion 5 that is configured to be slidable.
9, a lever portion 61 that slides the cam roller portion 59 via a fulcrum portion 60, and a hydraulic cylinder 6 that operates the lever portion 61 to slide the cam roller portion 59.
The sleeve 57 can be moved to the right in the figure by sliding the cam roller part 59 to the left in the figure and pushing the engaging part 58a of the claw part 58 inward. The settings are as follows. or,
By sliding the cam roller portion 59 to the right in the figure and guiding the engaging portion 58a of the claw portion 58 to the large diameter cam surface 59a of the cam roller portion 59, the sleeve 5
7 to the left to restore it to its original state. Reference numeral 63 indicates a bolt for fixing the pulley 55.

A collet sleeve 64 is disposed inside the front part of the sleeve 57 (on the right side in FIG. 4a) as shown in FIG. It is arranged. The mutual engagement surfaces of the collet sleeve 64 and the collet chuck 24 are formed into inclined surfaces, and by moving the collet sleeve 64 to the right in FIG. Collet chuck 24
It is configured to be configured to close. Further, by moving the collet sleeve 64 to the left in the figure, the collet chuck 24 can be restored to its open operating state. 65 indicates the spindle.
On the nose plate, reference numerals 66 and 67 indicate fixing bolts.

As shown in FIG. 2a, the controller 29 and the NC device 30 are connected to each other, and when the supply of the material 20 is completed, a signal to that effect is sent from the controller 29 to the NC device 30.
The information is input to the device 30.

Next, the effects of the above configuration will be explained.

First, the stopper 48 on the lathe 23 side. The turret 49 is positioned via the NC device 30, and then the chuck 24
is opened via the NC device 30.

Material supply tank 28 from NC device 30 to controller 29
drive the rotation. As the motor 28 rotates, the screw punch 27 connected to the motor 28 rotates, and the movable member 25 that is screwed into the screw punch 27 is moved. The push rod 22 is also moved by the movement of the movable member 25, and the tip of the push rod 22 comes into contact with one end surface of the material 20 on the supply stage 34, and the material 2
0 toward the chuck 24 of the spindle 11123.

The material 20 transferred by the push rod 22 passes through the chuck 24 in the open state, contacts the stopper 48, and is positioned.

After the material 20 is positioned in contact with the stopper 48, the motor 28 is reversed via the controller 29 after a certain period of time has elapsed, and the state of contact between the push rod 22 and the material 20 is released. When the supply work is completed, the controller 29 notifies the NC device 30 of the completion of material supply,
All material feeding operations are completed. Then, the chuck 24 of the lathe 5123 is closed and the material 20 is held, and the lathe 23
Processing is started by this.

In this embodiment, in the feeding operation of the material 20, the control structure is such that the push rod 22 is separated from the material after the material 20 is fed into the chuck 24. There was no vibration at all.

As a result, high-speed rotation becomes possible, and processing efficiency in parts processing can be improved. Furthermore, it is possible to provide a vibration-free material supplying device with an extremely simple configuration, which has the advantage of significantly reducing cost and making the device more compact.

[Effects of the Invention] As described above, according to the present invention, it is possible to reliably prevent the occurrence of vibration during machining with a simple configuration, and it is possible to improve production efficiency, reduce the cost of equipment, and make it more compact. It is something that can be achieved.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram of the device according to the present invention, FIG. 2 a is a perspective view showing one embodiment of the device according to the present invention, and FIG. 3 is a side view showing the operating state of the device according to the present invention, FIGS. 4a and 4b are regular sectional views of the chuck part of the lathe, and FIGS. 5a, b, and c are explanations of the prior art. It is a diagram. 20...Material 21...Transfer control mechanism section 22...Transfer member 23...Lathe 24...Chuck 25...Movable member 26...Guide rod 27...Screw punch 28...・Motor 29...Controller 30...NC necking patent applicant Olympus Optical Industry Co., Ltd.・T"-6
, Su5ne City ■ Mi (12 (spontaneous) August 19, 1986 Director-General of the Japan Patent Office Kuro I) J Akio Tono 1, iG Display Patent Application No. 140996 1988 2, Origination 1 Name Material supply device for lathe 3, Person making the amendment/Relationship with 1ν Patent application Person 2-43-2-4 Hatagaya, Shibuya-ku, Tokyo Agent B Contents of amendment (1) Details ``After a certain period of time, the controller 29 issues a command to close the chuck 24 to the NC device 30, and the motor 28 is turned on.'' (The chuck 24 of the lathe 23 is closed and the material 2
゜ is retained and `` is deleted.

Claims (1)

[Scope of Claim] In a material supply device for a lathe, which is arranged adjacent to a lathe to supply workpiece material to a processing section of the lathe, the transfer member for transferring the workpiece material is moved through a transfer control mechanism section. The transfer member is configured to be able to move forward and backward with respect to the processing section of the lathe, and the transfer member is configured to come into contact with the workpiece material only when transferring and supplying the workpiece material to the processing section of the lathe. A material supply device for a lathe, characterized in that the transfer member is controlled so as to move away from the workpiece material during machining.