KR950009078Y1 - Object transferring apparatus in press - Google Patents

Abstract

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Description

Press workpiece conveying device

Figure 1 is an illustration of the installation state of the present invention.

2 is a front view showing the configuration of the present invention.

Figure 3 is a side view showing the configuration of the present invention.

4 is an enlarged view showing the main configuration of the present invention.

Figure 5 is an excerpt perspective view showing the main components of the present invention.

6 is a flowchart of an operation initial signal of the present invention.

7 is an exemplary operation state of the present invention.

* Explanation of symbols for main parts of the drawings

1,2: Press 11: Body

12: guide portion 12a: guide roller

13: saddle 14: cylinder

15: vacuum cup 16: transfer bar

17: AC servo motor 18: Link

19: rotating rock 20: reducer

21: Timing Belt

The present invention relates to a press workpiece conveying apparatus, and in particular, in the construction of a robot which is installed between presses and presses so as to perform each process in sequence by automatically installing a plurality of presses and transferring the first processed workpiece to the next process. By removing the pure mechanical type that used the conventional rack, pinion, cam, etc., the driving force of the AC servo motor operated by the electric signal is transmitted to the timing belt, and the moving bar installed with the vacuum cup is moved as much as the desired stroke to transfer the workpiece accurately. Toktok.

Conventionally, in constructing an apparatus for transporting a workpiece by installing in the middle of two adjacent presses, it is guided by a main body installed in the middle of the two presses and guide holes provided on the main body, as in Patent Publication No. 88-613. A rack for rotating the pinion and pinion provided on the guide bar and the conveyance bar provided on the guide by moving the guide and the material moving in the longitudinal direction and moving the material horizontally with the material holding means at the end thereof for transporting and transporting the material. And a conveying bar between the conveying device between the presses having the link mechanism provided between the pinion and the guide body, and the adjacent conveying bar and the adjacent rack, respectively, so that the rack completely forms the bar shape, both connected to the transverse reciprocating driving mechanism, The receiving table is provided in front of the main body, and the distance between the press die and the intermediate receiving table is provided on the conveying bar. The spacing bar and rack are connected to the adjacent conveyance bar and the adjacent rack by rods thinner than the conveying bar and rack, respectively.The rods provided near both ends of the guide body are connected to the upper surface of the main body. Sliding is installed in the open guide hole, the pinion is to be provided in the cavity provided in the center of the body, but the prior art has been proposed so far, a plurality of workpiece transfer device installed between a plurality of presses are connected to each other by connecting rods As it is operated by a single drive at the same time, it is difficult to adjust the installation and conveying distance. When processing small items or processing many items, the whole conveying device should be operated. Not only do they have to match, they use racks and pinions to generate a lot of noise It was a constant reality that many problems in practical use such that the upper limit.

The present invention has been devised in view of the above-mentioned conventional defects, and the vacuum cup mounted on the transfer bar is precisely set by the operation of the link mechanism that receives the forward and reverse rotational force of the AC servo motor operated by the electrical signal. It has a unique conveying function to transfer the workpiece by operating, and it is easy to install by adjusting the conveying distance and the selection of the operating range freely.It reduces the noise by removing the rack and pinion and easily responds to the process of the product to be processed. The purpose is to improve the productivity by providing a convenient transport device for practical use.

The present invention for achieving the above object is the main body is installed between the two adjacent presses, the guide portion is provided on the front of the main body and is provided with a plurality of guide rollers, and the guide roller is installed on the guide roller Composed of the transfer bar, the suction means installed on both ends of the transfer bar, the transfer means for horizontally moving the transfer bar left and right, and the elevating means for lifting up and down the guide portion combined with the transfer bar, the first processed workpiece to the next transfer When described in more detail based on the accompanying drawings to transfer to as follows.

As shown in FIGS. 1 to 3, the saddle 13 includes a guide head 12 having a plurality of guide rollers 12a located above the main body 11, which is installed between two adjacent presses. The transfer bar 16 having a vacuum cup 15, which is a suction means for adsorbing a workpiece at both ends, is installed on the guide roller 12a of the guide part 12 by being coupled to the lift by the operation of the cylinder 14. After the installation, the transfer bar 16 was provided with a transfer unit so that the AC servo motor 17 was coupled to the link 18 which is driven and operated.

That is, the guide portion is coupled to the main body 11 and the saddle as shown in Figure 4 of the accompanying drawings, by combining a cylinder 14 having a sensor for detecting a top dead center and a left dead center to separate the cylinder 14 It was configured to be elevated by the control means.

In this case, the transfer bar 16 is formed by a diamond-shaped cross-section of each bar is installed so that the symmetrical both edges are guided by being guided by the guide roller 12a of the guide portion 12, the link coupling portion 16a in the center The suction means comprises a plurality of vacuum cups (15) at the same time the vacuum bar which is selectively controlled by a separate control means as shown in Figure 5 attached to the both ends of the transfer bar (16) Installed on the two arms (15a) that can be adjusted to the spring (15b) to install the tangible flow.

And as shown in Figure 3 and 5, the conveying means is the upper end is coupled to the link coupling portion (16a) formed in the center of the transfer bar 16, the lifting material and the lower end is long vertically up and down the front side of the main body (11) Link 18, which is coupled to the link coupling rail (11a) is formed to move up and down, left and right, and the front end is connected to the center of the link 18, the pivot arm is arranged in the main body 11 (left and right) ( 19) and the AC servo motor which is installed at the rear of the main body 11 and rotates left and right by separate control means designated as the NC control program G01, G90, G94, the transfer bar 16, and the transfer distance and the transfer speed. 17) and a timing belt for transmitting the driving force of the reduction gear 20 for reducing the driving force of the AC servomotor 17 and the driving force of the AC servomotor 17 decelerated in the reduction gear 20 to the pivoting arm 19. It consisted of (21).

The present invention configured as described above has the operation of the solenoid valve (not shown) for controlling the punching operation of two adjacent presses 1 and 2 and the vacuum pressure of the vacuum pump, and the operation of the AC servomotor 17 and the cylinder ( The operation of 14) is made by the driver's switch operation or by the command according to the command of the program set by the driver.

Looking at the operation state of the present invention as follows.

The present invention is installed between two presses (1) (2) adjacent to each other on a site equipped with a plurality of presses, and then the operation of the presses (1) (2) and the workpiece conveying device of the present invention are connected to each other. When the main power is turned on and the NC power of the control box (not shown) is turned on, the battery, NC operating conditions, air pressure, etc. are displayed according to the system abnormality flow chart shown in FIG. Check the system for abnormalities.

Checking the system for abnormality by the above method, when all the preparations are completed, select the automatic mode and turn on the operation start switch to turn on the AC servo motor 17 and the cylinder 14 to operate the transfer bar 16. The program returns to the home position and enters the program standby state.

In the above state, at the same time as the primary processing is finished in the first press 1, the AC servo motor 17 is driven and the rotation of the AC servo motor 17 is reduced in the reduction gear 20, and then the timing belt 21 is removed. Rotating arm (19) connected to the rotational direction clockwise as shown in Fig. 7 attached to the linkage, and the link (18) connected to interlock with the pivotal arm 19, the upper and lower points on the lower side of the main body (11) Rotate in the counterclockwise direction around the lower end coupled to the link coupling rail (11a) formed long to transfer the transfer bar 16, the link coupling portion 16a is coupled to the upper end of the link 18 to the left.

As the vacuum cup 15 of the adsorption means installed on the transfer bar 16 transferred as described above reaches the upper part of the workpiece, the cylinder 14 is operated and the guide part 12 coupled to the main body 11 and the saddle. As it is lowered and the vacuum contact 15 installed on the transfer bar 16 is in close contact with the workpiece, a vacuum pressure is generated to adsorb the workpiece.

When the adsorption of the workpiece is completed as described above, the guide unit 12 is lifted by the operation of the cylinder 14 and the AC servo motor 17 is reversely operated so that the transfer bar 16 is transferred to the right axis to move the workpiece to the next process. Will be transferred.

When the transfer of the workpiece is completed as described above, the guide portion 12 is lowered again by the operation of the cylinder 14 to seat the workpiece at the next process position and at the same time the vacuum pressure acting on the vacuum cup 15 is removed. And then the guide unit 12 rises to the first position by the operation of the cylinder 14 and the AC servo motor 17 to wait for the next operation. That is, the vacuum cup installed on the left side of the transfer bar 16. When the workpiece is moved to the center of the main body 11, the vacuum cup 15 installed at the right end of the transfer bar 16 is repeatedly moved to the next process position.

This proposal, which is installed between two presses as described above, is designed to transfer the workpiece, and the transfer bar received by the link mechanism transfers the rotational force of the AC servo motor to the left and right to freely select the transport distance, adjustment and operating range, and to facilitate installation. Of course, it is a new and useful design that is very convenient in practical use, such as to play a role in saving energy by selectively operating according to the processing process of the article to be processed.

Claims (7)

A main body installed between two adjacent presses and a guide part provided to be movable up and down in front of the main body and having a plurality of guide rollers, and a transfer bar guided by the guide rollers to move left and right, and the transfer And a suction means mounted on both ends of the rail, a transfer means for transferring the transfer bar to the left and right, and a lift means for lifting up and down the guide unit to which the transfer bar is coupled. The apparatus of claim 1, wherein the guide unit is installed to be elevated by being coupled to the main body and the saddle. The method of claim 1, wherein the transfer bar, the cross-section is formed as a diamond-shaped square rods are symmetrical to each other is installed so as to be squeezed guided by the guide roller of the guide portion, characterized in that configured to form a link coupling portion in the center Press workpiece conveying apparatus. According to claim 1, The adsorption means, a plurality of vacuum cups at the same time the vacuum pressure selectively controlled by a separate control means is mounted on both ends of the transfer bar is supported by a spring on the two adjustable arms Press work piece conveying apparatus, characterized in that the installation is movable. According to claim 1, The conveying means, the upper end is coupled to the link coupling portion formed in the center of the transfer bar and the lifting material and the lower end is coupled to the link coupling rail formed up and down long and vertically on the lower side of the main body to lift and rotate left and right A forward and reverse motor installed at the rear side of the main body by a separate control means, a reduction gear for reducing the driving force of the AC servomotor, a timing belt for transmitting the driving force reduced in the reduction gear, Pressed object conveying apparatus, characterized in that the main body is arranged in the center belt and the front end is coupled to the center of the link to the left and right rotation arm by the drive of the AC servo motor. According to claim 1, The lifting means, the workpiece workpiece transport apparatus characterized in that the cylinder having a sensor for detecting the top dead center and the bottom dead center is configured to be controlled by a separate control means. The driver's switch according to claim 4, 5 or 6, wherein the control means controls the operation of the solenoid valve for controlling two adjacent press operations and the vacuum pressure of the vacuum pump, the operation of the AC servomotor and the operation of the cylinder. Press-worked conveying device, characterized in that the operation or the program set by the operator is configured to be made by the command according to the command.