KR102013445B1 - Apparatus for ejecting and transferring workpiece - Google Patents

Abstract

The present invention relates to an apparatus for discharging and transferring a workpiece, wherein a workpiece which has been processed in a machine tool is discharged to be transferred to a loading tray. The apparatus comprises: a support frame horizontally and detachably coupled to the machine tool; a transfer means mounted on a lower surface of the support frame to slide back and forth in a longitudinal direction; a bracket coupled to the transfer means and extending to an upper surface of the support frame; and a saddle coupled to an upper portion of the bracket to enable the workpiece to be mounted on the saddle.

Description

Apparatus for ejecting and transferring workpiece

The present invention relates to a workpiece discharge transfer device, and more particularly, to a workpiece discharge transfer device that can be quickly and reliably transferred to a stacking tray by taking out the finished workpiece from the machine tool and discharged.

After machining is completed in the machine tool, the workpiece needs to be discharged to be taken out and loaded.

In recent years, a device for taking out and loading a workpiece is mostly using a robot arm, and when the robot arm is driven, the workpiece is clamped and transferred to the finger so that the position of the workpiece must be fixed and fixed.

Conventionally, a conveyor is often used for simply discharging and transferring a workpiece.

However, in the process of taking the workpiece out of the chuck of the machine tool and dropping it onto the conveyor, the workpiece is displaced and the round rod-shaped workpiece is placed in an unstable state during transportation.

In addition, since conveyors use a belt that rotates with a motor, the robot arm is not suitable for clamping after transfer because the position of the workpiece placed on the belt is not controlled properly during the transfer due to vibration. So a separate device was needed to hold the workpiece in place.

In order to solve this problem, an improved structure of a conventional conveyor is disclosed as shown in FIG. 1.

1 is a perspective view showing a conventional workpiece linear feeder.

As shown, the mounting plate 52 on which the workpiece is mounted, the rollers 60 provided at both ends of the mounting plate, the guide rod 70 supporting the rollers and guiding the driving of the rollers, and the mounting plate The first pulley 132 and the first pulley receiving the driving force of the driving motor and the second pulley 133 are spaced apart by a predetermined interval in the conveying direction of the seating plate and the engaging means formed on the lower surface of the Disclosed is a workpiece linear transfer device comprising a belt (53) which is detachably engaged with a fitting means to transfer power for transfer to the seating plate, and to transfer driving force transmitted to the first pulley to a second pulley.

In the case of the structure as described above, a stable conveyance is possible by the engagement means than a simple conveyor, but because of the unstable conveying factors due to the belt and pulley structure, there is a need for a rapid and stable linear conveying device according to the automation trend of the workpiece. will be.

-Republic of Korea Patent Registration 10-0327540 (2002.2.22) "workpiece linear feed device" -Republic of Korea Utility Model Registration 20-0185582 (2000.4.3) "Conveyor for Workpiece Recovery Equipment"

Accordingly, the present invention is to solve the above problems, an object of the present invention is to provide a workpiece discharge transfer apparatus that can be quickly and accurately and reliably discharged the finished workpiece from the machine tool to the loading device.

Work piece discharge transfer apparatus according to the present invention for achieving the above object, the device for discharging the finished work in the machine tool to transfer to the loading tray, the support frame coupled horizontally detachable with the machine tool; A conveying means mounted on a lower surface of the support frame and reciprocating in a longitudinal direction; A bracket coupled to the transfer means and extending to an upper surface of the support frame; And a saddle coupled to the upper portion of the bracket to which the workpiece is seated.

Here, the conveying means is a ball screw disposed in the longitudinal direction on the lower side of the support frame, a bearing for rotatably supporting both ends of the ball screw, and a rail formed along the longitudinal direction on the lower surface of the support frame And a transfer block screwed to the ball screw and seated on the rail and linearly reciprocating by forward or reverse rotation of the ball screw, and a motor for forward or reverse rotation of the ball screw. .

The bracket may have a lower end coupled to a lower surface of the transport block and an upper end coupled to a lower surface of the saddle via a side surface of the support frame, and may have a 'c' shape.

In addition, the saddle may be provided with a pair of feet spaced to form a workpiece, 'V' type groove is formed to facilitate the clamping of the workpiece.

According to another embodiment of the present invention, an apparatus for discharging the finished workpiece from the machine tool to transfer to the loading tray, the support frame coupled to the machine tool detachably horizontally; Ball screws arranged in the longitudinal direction on the upper side of the support frame, a bearing for rotatably supporting both ends of the ball screw, a rail formed in the longitudinal direction on the upper surface of the support frame, screws on the ball screw A conveying means coupled to and mounted on the rail and including a transfer block for linear reciprocating movement by forward or reverse rotation of the ball screw and a motor for forward or reverse rotation of the ball screw; And saddles coupled to the upper portion of the transport block to which the workpiece is seated.

According to another embodiment of the present invention, an apparatus for discharging the finished workpiece from the machine tool and transported to the loading tray, the support frame coupled to the machine tool detachably horizontally; A ball screw disposed in the longitudinal direction on the side of the support frame, a bearing rotatably supporting both ends of the ball screw, a rail formed along the longitudinal direction on one lower surface of the support frame, and the ball screw. A transfer means including a transfer block screwed and seated on the rail for linear reciprocating movement by forward or reverse rotation of the ball screw and a motor for forward or reverse rotation of the ball screw; A bracket coupled to the transfer block and extending to an upper surface of the support frame; And a saddle coupled to the upper portion of the bracket to which the workpiece is seated.

At this time, the bracket, the lower end is coupled to the lower surface of the transport block, and the upper end is coupled to the lower surface of the saddle via the side of the transport block, the cross section may have a '' 'shape.

According to the present invention made of the above configuration has the following effects.

Fast and stable transfer is possible compared to the conveyer of the conventional conveyor structure.

And it can be attached to other machine tools and equipped with automated transfer system.

In addition, scratches are prevented when the workpiece is not moved.

In addition, since it is separated from the cutting oil or the processing chip, there is almost no loss of the device, and semi-permanent use is possible.

1 is a perspective view showing a conventional workpiece linear feed device
Figure 2 is a perspective view showing the overall appearance of the workpiece discharge transport apparatus according to an embodiment of the present invention
3 is a bottom perspective view of the present invention shown in FIG.
4 is a cross-sectional view taken along line AA ′ of FIG. 2.
5 is an operating state diagram of the present invention
Figure 6 is an external perspective view of the workpiece discharge transport apparatus according to another embodiment of the present invention
Figure 7 is an external perspective view of another workpiece discharge transport apparatus another embodiment of the present invention

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

For reference, the description with reference to the drawings is for easier understanding of the present invention, and the scope of the present invention is not limited thereto. In the following description of the present invention, when it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

Figure 2 is a perspective view showing the overall appearance of the workpiece discharge transport apparatus according to an embodiment of the present invention, Figure 3 is a bottom perspective view of the present invention shown in Figure 2, Figure 4 is a sectional view AA 'shown in FIG.

The present invention is provided between the workpiece taking out robot arm 20 provided inside the machine tool and the workpiece loading robot arm 30 provided outside the machine tool, the workpiece is completed by being bitten by the chuck 10 of the machine tool ( wp) relates to a device for linearly conveying the finished workpiece to the stacking tray 40 to automatically collect the finished workpiece after the robot arm is taken out. Referring to the drawing, the support frame 100 and the conveying means ( 200, the bracket 300, and the saddle 400 may be configured.

First, the support frame 100 will be described.

The support frame 100 is configured to be a base on which the transfer means 200, the bracket 300, and the saddle 400 are mounted, respectively, and is coupled to a portion where the workpiece wp is taken out and discharged from the machine tool.

In this case, the support frame 100 may be horizontally arranged and detachably coupled to the machine tool. This is to simply install or dismantle in the existing machine tool, specifically, can be installed by fastening one end of the support frame 100 with the machine tool by means of fastening, such as bolts.

As shown in the drawing, the support frame 100 may have a shape in which an approximately long flat plate is bent along a longitudinal direction.

That is, the workpiece wp is seated by the main plate member 110 for guiding the transfer, and the upper bent plate member 120 and the main plate member 110 bent upward from one side of the main plate member 110 The lower bent plate member 130 is bent downward from the other side, it may have a cross section, such as approximately '┏┛'.

Next, the transfer means 200 will be described.

The conveying means 200 is provided along the longitudinal direction at the lower side of the support frame 100 to reciprocally convey the saddle 400 on which the actual workpiece wp is placed along the main plate member 110. .

Specifically, the conveying means 200 may be configured to include a ball screw 210, a bearing 220, a rail 230, a conveying block 240 and a motor 250.

The ball screw 210 is configured to convert the rotational movement into a linear movement, is made of a rod shape is disposed in the longitudinal direction on the lower side of the support frame 100 and the thread is formed continuously on the outer peripheral surface.

At this time, the screw bone (not shown) formed between the thread (not shown) of the ball screw 210 may be made of a semi-circular groove so that the ball can be inserted.

And both ends of the ball screw 210 is rotatably supported by the bearing 220, in the state spaced apart from the lower surface of the support frame 100, that is, the lower surface of the main plate member 110 It is provided.

In addition, the rail 230 is coupled to the lower surface of the main plate member 110 of the support frame 100. That is, the rail 230 is provided in parallel with the ball screw 210 along the longitudinal direction between the main plate member 110 and the ball screw 210.

The transfer block 240 is formed in a rectangular shape and the ball screw 210 penetrates, and is screwed to the ball screw 210 through a ball therein. That is, the ball screw 210 is a male screw thread, the female thread is formed in the transfer block 240 is screwed to each other.

At this time, the upper surface of the transfer block 240 is seated on the rail 230 is guided by the rail 230 to be able to reciprocate in a straight line.

One end of the ball screw 210 is provided with a motor 250 capable of forward rotation or reverse rotation and the motor shaft is shaft-coupled by the ball screw 210 and the coupling 260.

Alternatively, the motor shaft may not be directly coupled to the ball screw 210, but may be mounted on the side of the support frame to transfer power to the ball screw 210, the pulley, and the belt (not shown).

Accordingly, the ball screw 210 is rotated by the forward rotation or the reverse rotation driving of the motor 250, and the transfer block 240 coupled to the ball screw 210 reciprocates along the rail 230. Will move.

Next, the bracket 300 will be described.

The bracket 300 is coupled to the transfer block 240 to reciprocate with the transfer block 240. That is, the bracket 300 is a member connecting the transport block 240 and the saddle 400 to move together in the lower side of the support frame 100 to move together.

To this end, the shape of the bracket 300 may have a cross-sectional shape of approximately ''.

Specifically, the bracket 300 is bent twice so as to have a 'c' shape, the upper upper plate member plate () is coupled with the lower surface of the saddle 400, the lower lower plate member plate () is the transfer block ( Coupling with the lower surface of the 240, the middle plate member 330 is the upper plate member 310 and the lower plate member 320 via the support frame 100, that is, the lower bent plate member 130 ).

In this case, the upper plate member 310 is spaced apart from the main plate member 110, and the intermediate plate member 330 is spaced apart from the lower bent plate member 130.

Therefore, the bracket 300 does not cause friction with the support frame 100 when the bracket 300 moves together with the transport block 240.

Next, the saddle 400 coupled to the bracket 300 will be described.

The saddle 400 may be formed of a base plate 410 and a support 420 provided on the base plate 410 as shown to seat and transport the workpiece (wp).

The base plate 410 may have a flat plate shape and may be coupled to the upper plate member 310 of the bracket 300.

And the support 420 is a 'V' type groove () is formed so that the workpiece (wp) is seated and does not move from side to side. At this time, the support 420 may be provided as one, but preferably a pair is spaced apart so that the structure (wp) can be mounted on both ends.

This is when the workpiece wp is seated on the saddle 400 and transferred to the loading tray 40, the finger 20a of the loading robot arm 30 should clamp the workpiece wp for loading. Since both ends of the support 420 is mounted in the middle and the middle is empty, the structure 20 has the advantage that the finger 20a is easy to grasp the middle of the workpiece (wp).

On the other hand, in the present invention, one end of the support frame 100, that is, it is preferable that the sensor 500 is provided at the point where the transfer of the workpiece (wp) ends. When the saddle 400 contacts the sensor 500, the saddle 400 may be stopped by controlling the operation of the motor 250 to be stopped immediately.

And in front of the saddle 400 is preferably provided with a vertical plate member 340 of a flat shape perpendicular to the workpiece (wp) seated on the saddle 400. The vertical plate member 340 may function to prevent the workpiece (wp) seated on the saddle 400 to protrude inertia when the saddle 400 stops, and at the same time to the sensor 500. It functions to be touched and detected.

In this case, the vertical plate member 340 may be formed by bending vertically to extend from the upper plate member 310.

Hereinafter, the operation of the present invention will be briefly described with reference to FIG. 5.

5 shows an operational state diagram of the present invention.

First, when the transfer block 240 is finished on the workpiece loading robot arm 30 in the state in which the workpiece wp is processed in the machine tool, the workpiece extraction robot arm 20 is the chuck 10 of the machine tool. The workpiece is taken out from the.

In this case, when the motor 250 rotates forward (or reverse), the transfer block 240 linearly moves from one end of the support frame 100 to the other end along the ball screw 210 and thus the transfer block 240. The saddle 400 coupled to) also moves together.

When the saddle 400 arrives at the other end of the support frame 100, the saddle 400 is introduced into the machine tool and stopped.

Here, when the workpiece extraction robot arm 20 puts the workpiece wp taken out by the finger 20a on the support 420 of the saddle 400, the workpiece wp is seated on the saddle 400.

Next, when the motor 250 is reversely rotated (or forward rotated), the transfer block 240 and the associated saddle 400 are once at the other end of the support frame 100 along the ball screw 210. When the vertical plate member 340 contacts the sensor 500, the motor 250 stops operating so that the saddle 400 is accurately positioned below the workpiece loading robot arm 30.

In addition, the finger 20a of the workpiece loading robot arm 30 clamps the middle of the workpiece wp seated between both feet 420 of the saddle 400, and then transfers it to the loading tray 40. After returning to the upper side of the saddle 400 again to wait.

The saddle 400 waits until the next work piece is completed and repeats the above-described process when the work is completed.

Another embodiment of the present invention will be described with reference to FIG. 6. 6 is a perspective view showing another embodiment of the present invention.

Another embodiment of the present invention may be composed of the support frame 100, the conveying means, the saddle, the support frame and the birds are similar to the above description, so a detailed description thereof will be omitted.

Only the transfer means 200 will be described in detail.

The ball screw 210 constituting the transfer means 200 is provided on the upper side of the support frame 100.

That is, the ball screw 210 is provided horizontally along the longitudinal direction on the upper side of the main plate member 110 of the support frame 100, both ends of the ball screw 210 is rotated by the bearing 220 Possibly supported. Of course, the bearing 220 is also fixed to the upper both sides of the main plate member 110.

And the upper surface of the main plate member 110 is formed with a rail 230 in the longitudinal direction.

In addition, the ball screw 210 is mounted with a transport block 240 is screwed and the lower surface of the transport block 240 is seated on the rail 230 is guided by the rail 230.

In addition, the motor 250 is also installed on the upper surface of the main plate member 110, and is directly axially coupled or coupled to the other end of the ball screw 210 supported by the bearing 220 or other power It can be driven using the transmission means ().

Meanwhile, the saddle 400 is attached to and coupled to an upper surface of the transfer block 240.

This embodiment is the case without the bracket 300.

Another embodiment of the present invention will be described with reference to FIG. 7. 7 is a perspective view showing still another embodiment of the present invention.

Another embodiment of the present invention may be composed of a support frame 100, the conveying means 200, the bracket 300 and the saddle 400.

First, the support frame 100 is horizontally disposed, it can be coupled to the machine tool detachably. It can be installed by fastening one end of the support frame 100 with a machine tool with a fastening means such as a bolt.

As shown in the drawing, the support frame 100 may have a shape in which an approximately long flat plate is bent along a length direction, and one end of the support frame 100 is detachably coupled to the machine tool.

And the main plate member 110 standing vertically, and one side bending plate member 140 bent in one direction from the upper end of the main plate member 110 and the other end bent from the lower end of the main plate member 110 It may be made of the other side bending plate member 150.

Here, the conveying means 200 is provided on the side of the main plate member 110.

Specifically, the rail 230 is coupled to and fixed to the bottom surface of the one side bent plate member 140 along the longitudinal direction, bearings 220 are provided on both sides of the main plate member 110, respectively, the rail ( The ball screw 210 is disposed along the longitudinal direction to be spaced apart from the 230. In this case, the ball screw 210 is rotatably supported by the bearing 220.

In addition, the ball screw 210 is axially coupled with the motor 250 can be rotated forward or reverse.

In addition, the transfer block 240 is screwed to the ball screw 210 and seated on the rail 230 is a straight reciprocating transfer.

On the other hand, the bracket 300 may be formed in a substantially '' 'shape.

Specifically, the bracket 300 is bent twice so as to have a 'c' shape, the upper upper plate member () is coupled with the lower surface of the saddle 400, the lower lower plate member 320 is the transfer block ( It is coupled to the lower surface of the 240, the middle plate member 330 is connected to the upper plate member 310 and the lower plate member 320 via the side of the transfer block 240.

At this time, the upper plate member 310 is spaced apart from the one side bending plate member 140.

The saddle 400 is coupled to an upper surface of the upper bracket 300.

Although the exemplary embodiments of the present invention have been described above with reference to the drawings, those skilled in the art will be able to perform various applications and modifications within the scope of the present invention based on the above contents. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

100: support frame 110: main plate member
120: upper bending plate member 130: lower bending plate member
140: one side bending plate member 150: the other side bending plate member
200: transfer means
210: ball screw 220: bearing
230: rail 240: transfer block
250: motor 260: coupling
300: bracket
310: upper plate member 320; Lower plate member
330: intermediate plate member 340: vertical plate member
400: saddle 410: base plate
420: base 420a: V-shaped groove
500 sensor
10: Chuck 20: Takeout Robot Arm
20a: finger 30: loading robot arm
30a: finger 40: stacking tray
wp: workpiece

Claims (7)

In the device for discharging the finished workpiece from the machine tool and transported to the loading tray,
It consists of a main plate member, an upper bent plate member bent upward at one side of the main plate member and a lower bent plate member bent downward at the other side of the main plate member to form a '┏┛' shape, removable with a machine tool A support frame coupled horizontally;
A ball screw spaced apart from the lower side of the main plate member in a longitudinal direction, a bearing for rotatably supporting both ends of the ball screw, a rail formed along a longitudinal direction on a lower surface of the main plate member, and A transfer unit including a transfer block screwed to a ball screw and seated on the rail to linearly reciprocate by forward or reverse rotation of the ball screw, and a motor for forward or reverse rotation of the ball screw;
The lower end is coupled to the lower surface of the transfer block and the upper end is coupled to the lower surface of the saddle while passing through the lower bent plate member of the support frame has a cross-section '''shape, the vertical plate member is provided on one side Brackets; And
Coupled to the upper portion of the bracket is the workpiece is seated, and a pair of feet formed with a 'V' type groove is provided spaced apart to facilitate the clamping of the workpiece Saddle; workpiece discharge transport apparatus comprising a. delete delete delete In the device for discharging the finished workpiece from the machine tool and transported to the loading tray,
It consists of a main plate member, an upper bent plate member bent upward at one side of the main plate member and a lower bent plate member bent downward at the other side of the main plate member to form a '┏┛' shape, removable with a machine tool A support frame coupled horizontally;
Ball screws arranged in the longitudinal direction on the upper side of the support frame, a bearing for rotatably supporting both ends of the ball screw, a rail formed in the longitudinal direction on the upper surface of the support frame, screws on the ball screw A conveying means coupled to and mounted on the rail and including a transfer block for linear reciprocating movement by forward or reverse rotation of the ball screw and a motor for forward or reverse rotation of the ball screw; And
And a saddle coupled to the upper portion of the bracket, the workpiece being seated, and having a pair of supporters formed with a 'V'-shaped groove spaced apart so as to facilitate clamping of the workpiece. In the device for discharging the finished workpiece from the machine tool and transported to the loading tray,
It consists of a main plate member standing vertically, one side bending plate member bent in one direction from the upper end of the main plate member and the other side bending plate member bent in the other direction to the lower end of the main plate member, removable with a machine tool A support frame coupled horizontally;
A ball screw disposed in the longitudinal direction on the side of the main plate member, a bearing for rotatably supporting both ends of the ball screw, a rail formed along the longitudinal direction on the lower surface of the one side bent plate member, and the ball A transfer means including a transfer block screwed to a screw and seated on the rail and linearly reciprocating by forward or reverse rotation of the ball screw, and a motor for forward or reverse rotation of the ball screw;
A bracket having a lower end coupled to a lower surface of the transport block and having an upper surface coupled to the lower surface of the saddle via a side of the transport block and having a cross-section having a 'c' shape and having a vertical plate member on one side of the upper surface; And
And a saddle coupled to the upper portion of the bracket, the workpiece being seated, and having a pair of supporters formed with a 'V'-shaped groove spaced apart to facilitate clamping of the workpiece. delete

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