KR200234314Y1 - Apparatus for supplying/drawing out material to/from numerical machine - Google Patents

Abstract

Apparatus for material feed and workpiece take-out of machine tools are published. Material feed and workpiece take out device of the present invention is a material transfer means for transferring the material; Sensing means for sensing a workpiece conveyed by the workpiece conveying means and generating a sensing signal; A robot arm for supplying a material sensed by the sensing means to the chuck and taking out a workpiece in the machine tool; And control means for controlling the operation of the material transfer means and the robot arm in response to the detection signal. The material supply and workpiece take-out device of the present invention as described above performs the material feed and the workpiece take-out operation only by the forward / backward / vertical movement of the feed finger and take-out finger, so that the material feed and take-out of the workpiece compared to the prior art The time can be reduced, thereby improving the production yield of the machine tool.

Description

Apparatus for material supply and workpiece extraction of machine tools {APPARATUS FOR SUPPLYING / DRAWING OUT MATERIAL TO / FROM NUMERICAL MACHINE}

The present invention relates to an apparatus for automatically supplying a raw material to a machine tool and automatically taking out a workpiece processed by the machine tool.

In general, a machine tool processes a workpiece fixed to a chuck using a predetermined tool. In this case, the raw material is supplied from the outside, and the workpiece processed by the machine tool must be taken out again. Accordingly, in recent years, various materials have been developed and used in which a material to be processed is automatically supplied to a chuck of a machine tool, and a workpiece processed by the machine tool can be automatically taken out.

Then, with reference to the accompanying Figure 1 will be briefly described for the material supply and collection device of the machine tool described in the Republic of Korea Utility Model No. 0135088 as an example of the prior art. Referring to Figure 1, the device described in Republic of Korea Utility Model No. 0135088 is a material box 10 is loaded with materials formed with a hole (Hole) at one end, and an elevator for raising and lowering the material box 10 ( 20) and a pusher 30 for supplying / collecting material loaded on the material box 10 to / from a machine tool.

An opening 11 through which material is discharged is formed in the lower part of the material box 10.

The pusher 30 includes a saddle 31 installed inclined, a cylinder 32 mounted on the saddle 31, a fixing plate 33 fixed to the rod end of the cylinder 32, A material supply rod 34 and a material collection rod 35 mounted on the fixing plate 33, and a guide plate 36 through which the material supply rod 34 and the material collection rod 35 pass through. Equipped. The front end of the material collection rod 35 is provided with a stone bar 37 is inserted into the hole of the material. In this case, the material supply rod 34 and the material collection rod 35 are moved in an inclined direction together with the saddle 31 and in the front-rear direction together with the fixing plate 33 by the operation of the cylinder 32. Is moved.

In the material supply and collection device of the prior art machine tool configured as described above, when the workpiece is fixed to the chuck 1, the saddle 31 is moved to move the material collection rod 35 to the chuck 1 Place it on the centerline of. In this state, when the cylinder 32 is operated to push the fixing plate 33 forward, the protrusion bar 37 of the material collection rod 35 is inserted into the hole of the workpiece fixed to the chuck 1. Subsequently, when the cylinder 32 is operated to move the fixing plate 33 backward, the workpiece is supported by the material collection rod 35 and drawn out from the chuck 1.

On the other hand, when supplying the raw material to the machine tool, the elevator 20 lowers the material box 10 to the material supply position to position the opening 11 on the center line of the chuck 1 of the machine tool. In this state, when the cylinder 32 operates to push the fixed plate 33 forward, the material supply rod 34 is introduced into the opening 11 to push the material in the material box 10 forward. Pushing, the pushed material is fed to the chuck 1 of the machine tool. Subsequently, the elevator 20 and the cylinder 32 operate to move the material box 10 and the material supply rod 34 to their original positions.

However, the material supply and collection apparatus of the prior art machine tool as described above, after collecting the workpiece from the chuck, the elevator can lower the material box and move the saddle so that the material can be supplied. There is a problem that the time required is long, the production yield of the machine tool is significantly reduced.

In addition, since the material supply and collection device of the prior art described above pushes the material, the material may be shaken during the pushing process, in which case the material is difficult to be accurately fixed to the center of the chuck.

The object of the present invention is to provide a material supply and workpiece take-out device of a machine tool that can effectively solve the problems of the prior art described above.

1 is a front view showing a material supply and a workpiece collection device of a conventional machine tool.

Figure 2 is a perspective view schematically showing a material supply and workpiece take-out device of the machine tool according to the present invention.

3a, 3b and 3c is a front view, a side view and a plan view showing a material supply and workpiece take-out device of the machine tool according to the present invention.

4 is a view schematically showing an operation state in which a material supply and a workpiece take-out device of a machine tool according to the present invention take out a workpiece from a chuck of a machine tool.

5 is a view schematically showing an operating state in which a material supply and a workpiece take-out apparatus according to the present invention supply material to a chuck of a machine tool.

<Description of the symbols for the main parts of the drawings>

100: support frame 200: material transfer part

300: detection unit 400: robot arm

500: robot arm moving unit 600: control unit

One aspect of the present invention for achieving the above technical problem relates to a material supply and workpiece take-out device of the machine tool. The present invention provides a device for supplying the material to be processed to the chuck in the machine tool, and an apparatus for taking out the workpiece processed by the machine tool, comprising: a material conveying means for transferring the material; Detection means mounted to one side of the material conveying means and detecting a material conveyed by the material conveying means to generate a detection signal; A robot arm for supplying the material sensed by the sensing means to the chuck and extracting the workpiece in the machine tool; And control means for controlling the operation of the material transfer means and the robot arm in response to the detection signal.

The objects, features and advantages of the present invention described above will be more clearly understood through the following detailed description in conjunction with the accompanying drawings.

Then, with reference to the accompanying Figures 2 to 5 will be described in detail with respect to the material supply and workpiece take-out device of the machine tool according to the present invention.

Figure 2 is a perspective view schematically showing a material supply and workpiece take-out device of the machine tool according to an embodiment of the present invention, Figures 3a, 3b and 3c is a material supply and workpiece take-out device of the machine tool according to the present invention It is a front view, a side view, and a top view which shows. 2 to 3C, the material supply and workpiece take-out apparatus according to the present invention is the support frame 100, the material transfer unit 200, the sensing unit 300, the robot arm 400, the robot arm moving unit 500 ) And the control unit 600.

The support frame 100 includes a frame main body 110 on which the material transferring part 200, the sensing part 300, the robot arm 400, the robot arm moving part 500, and the controller 600 are mounted. It includes a plurality of casters 120 mounted at the lower end of the 110. Accordingly, the support frame 100 is a close contact / from the material transfer unit 200, the sensing unit 300, the robot arm 400, the robot arm moving unit 500 and the control unit 600 to / from the machine tool Can be spaced apart.

The material conveying unit 200 is a loading chute 210, a mounting cylinder 220 mounted on one side of the loading chute 210, a guide 230 and a vibration motor 240 connected to the guide 230 ). An opening (not shown) communicating with the guide 230 is formed at a lower end of the stacking chute 210, and in this embodiment, the stacking chute 210 loads a plurality of materials in three rows. Accordingly, a rod 222 is formed at the rod end of the mounting cylinder 220 so as to push three materials at the same time, and the rod 222 is loaded by the operation of the mounting cylinder 220. Three materials positioned on the opening side of the chute 210 are pushed out to the guide 230. The guide 230 is formed to extend from the loading chute 210 to the sensing unit 300, and mounts the material pushed by the pusher 222. The vibration motor 240 vibrates the guide 230 to transfer the material mounted on the guide 230 to the sensing unit 300.

The sensing unit 300 includes a column 310 positioned at one side of the guide 230, and a sensing sensor 320 mounted on the support 310. The detection sensor 320 detects the material transferred to the predetermined position by the material transfer unit 200 to generate a detection signal.

The robot arm 400 includes a supply finger 410, a blowout finger 420, an elevator 430, and a forward and backward cylinder 440. The supply finger 410 and the extraction finger 420 is interlocked, the supply finger 410 gripping the material to be processed by the machine tool, the extraction finger 420 is processed by the machine tool is fixed to the chuck Hold the workpiece. Such a supply finger 410 and the take-out finger 420 is a workpiece in which the supply finger 410 gripping the material on the guide 230 by the straight motion on the same plane, the take-up finger 420 is fixed to the chuck It has an initial position to hold. On the other hand, the supply finger 410 and the extraction finger 420 in the present embodiment is operated by the air pressure supplied through a predetermined air hose (not shown). The front surface of the elevator 430 is provided with a supply finger 410 and the extraction finger 420, a plurality of guide slots 432 for guiding the shangdong of the supply finger 410 and the extraction finger 420 is formed do. The rod 442 of the forward and backward cylinder 440 is fixed to the rear surface of the elevator 430. Such an elevator 430 raises and lowers the supply finger 410 and the extraction finger 420. The fore and aft cylinder 440 advances and retracts the elevator 430 to draw the feed finger 410 and the take out finger 420 into / out of the machine tool. In this case, the feed finger 410 and take-out finger 420 are located adjacent to the guide 230 or the chuck in the machine tool by the forward and backward cylinder 440.

In addition, the robot arm moving unit 500 includes a table 510 to which the forward and backward cylinders 440 of the robot arm are fixed, a pair of guide bars 520 positioned in parallel with each other, and a pair of mutually positioned ones. And a bracket 530 and a push cylinder 540. Bearings 512 are mounted on both sides of the bottom surface of the table 510, and guide bars 520 are penetrated through the respective bearings 512. Both ends of the guide bar 520 penetrating the bearing 512 are supported by a pair of brackets 530, respectively. On the other hand, the rod 542 of the push cylinder 540 is located parallel to the center axis of the guide 230, the guide bar 520 and the chuck in the machine tool, the end of the rod 542 is the table 510 It is fixed to one side central part. The push cylinder 540 reciprocates the table 510 in which the forward and backward cylinders 440 are fixed in a direction parallel to the center axis of the guide 230 and the chuck in the machine tool. At this time, the guide bar 520 guides the reciprocating movement of the table 510. In this case, the robot arm moving unit 500 is in close contact with the supply finger 410 and the extraction finger 420 to the guide 230 or the chuck in the machine tool. In other words, the robot arm moving unit 500 moves the supply finger 410 to a position capable of holding the material on the guide 230 or a position capable of supplying material to the chuck of the machine tool, and fixed to the chuck. The extraction finger 420 is moved to a position where the workpiece can be gripped.

The controller 600 includes a control box 610 and a warning light 620. The control box 610 is a control signal for operating the material transfer unit 200, the detection unit 300, the robot arm 400 and the robot arm moving unit 500 in response to the detection signal of the detection sensor 320. Generate. And, the beacon 620 emits a variety of light depending on the operating state of the device according to the present invention.

4 is a view schematically showing an operating state in which the apparatus according to the present embodiment takes out the workpiece from the chuck of the machine tool, and FIG. 5 shows an operating state in which the apparatus according to the present embodiment supplies material to the chuck of the small machine. It is a figure which shows schematically.

For convenience of description, in the present embodiment, the workpiece 1a processed by the machine tool is fixed to the chuck 1 of the machine tool, and the material on the guide 230 is sensed by the driving of the vibration motor 240. It is assumed that the sensor 320 is moved to the sensing position.

In the above state, when the detection sensor 320 generates a detection signal, the control unit 600 generates a control signal in response to the detection signal. At this time, the push cylinder 540 moves the table 510 on which the forward and backward cylinders 440 of the robot arm are fixed to the guide 230. In this case, the supply finger 410 is in close contact with the guide 230, that is, moved to a position capable of holding the material on the guide 230 to hold the material to be supplied to the chuck 1 of the machine tool.

Then, the push cylinder 540 moves the table 510 away from the guide 230 side to move the supply finger 410 holding the material to the initial position.

Then, when the forward and backward cylinder 440 is driven to move the elevator 430 forward, as shown in Figure 4, the supply finger 410 and the extraction finger 420 mounted on the front of the elevator 430 is It is drawn into the machine tool. At this time, the extraction finger 420 is located on the centerline of the chuck (1). In this state, when the push cylinder 540 is driven to bring the extraction finger 420 into close contact with the workpiece 1a fixed to the chuck 1, the extraction finger 420 grips the workpiece 1a. Then, the push cylinder 540 is driven in reverse to separate the extraction finger 420 holding the workpiece 1a from the chuck 1.

Then, the elevator 430 lowers the supply finger 410 and the ejection finger 420, so that the supply finger 410 holding the material 1b as shown in FIG. On the centerline of In this state, when the push cylinder 540 is driven to bring the supply finger 410 into close contact with the chuck 1, the supply finger 410 supplies the holding material 1b to the chuck 1.

As such, the present invention performs the take-out of the workpiece 1a and the supply of the material 1a by the linear motion of only the supply finger 410 and the extraction finger 420, so that the material box has to be moved. The time taken for feeding and withdrawing can be reduced.

On the other hand, after the material 1b is supplied to the chuck 1, the push cylinder 540 is driven in reverse to separate the supply finger 410 from the chuck 1, the forward and backward cylinder 440 is Reverse the elevator 430. At this time, the elevator 430 lowers the supply finger 410 and the extraction finger 420 to the initial position. In addition, the take-out finger 420 drops the workpiece 1a held at a predetermined position onto the discharge conveyor (not shown) while being retracted together with the elevator 430.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. For example, in the above-described embodiment, the supply finger 410 and the extraction finger 420 by the robot arm moving unit 500 is shown and described as being in close contact with the guide 230 and the chuck 1, but the present invention In another embodiment of the chuck (1) and the guide 230 by simply changing the shape of the gripping material from the guide 230, using the device of the present invention without the close contact described above, to the chuck (1) Material feed / process take-out can be performed. In addition, in the above-described embodiment, the table 510 equipped with the forward and backward cylinders 440 of the robot arm is illustrated and described as being moved by the push cylinder 540, but is not limited thereto. In the example, the table 510 may be reciprocated by connecting an electric motor capable of forward and reverse rotation to the table 510 by a ball screw method. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached utility model registration claims.

The material supply and workpiece take-out device of the machine tool according to the present invention as described above performs the material feed and the workpiece take-out operation only by the forward / backward / up and down movement of the feed finger and take-out finger, so that the material feed and the workpiece The time taken for taking out can be reduced, thereby improving the production yield of the machine tool.

In addition, the device of the present invention is supplied to the chuck in a state where the supply finger gripping the material, it is possible to accurately fix the material in the center of the chuck.

Claims (6)

In the apparatus for supplying the material to be processed to the chuck in the machine tool, and to take out the workpiece processed by the machine tool, Material conveying means for conveying the material; Detection means mounted to one side of the material conveying means and detecting a material conveyed by the material conveying means to generate a detection signal; A robot arm for supplying the material sensed by the sensing means to the chuck and taking out a workpiece in the machine tool; And Control means for controlling the operation of the material transfer means and the robot arm in response to the detection signal Material supply and workpiece take-out device of the machine tool, characterized in that it comprises a. According to claim 1, wherein the material conveying means A guide on which the material is mounted; And And a vibrating motor for vibrating the guide so that the material on the guide is transferred to the sensing position of the sensing means. According to claim 2, wherein the material conveying means An opening in communication with the guide, the loading chute for loading a plurality of the materials; And And a mounting cylinder for mounting the material in the loading chute on the guide. The robotic arm of claim 1, wherein the robotic arm is A supply finger for holding and supplying the material detected by the sensing means to the chuck; A extraction finger for gripping out the workpiece fixed to the chuck; An elevator for raising and lowering the supply finger and the extraction finger; And Forward and backward cylinders providing forward / backward feed force for drawing / drawing the feed finger and the take out finger into / out of the machine tool Material supply and workpiece take-out device of the machine tool, characterized in that it comprises a. The method of claim 4, wherein And a robot arm moving means for bringing the supply finger and the take out finger into and out of the guide and the chuck. According to claim 5, The robot arm moving means A table on which the forward and backward cylinders are mounted; And A pusher connected to one side of the table to provide a reciprocating force to the table Material supply and workpiece take-out device of the machine tool, characterized in that it comprises a.