KR101125767B1 - Three dimensional pliable transfer unit feeding apparatus - Google Patents

Abstract

PURPOSE: A three-dimensional supply device for a flexible transfer unit is provided to stabilize the operation of the device by preventing foreign materials from flowing into the device. CONSTITUTION: A three-dimensional supply device for a flexible transfer unit comprises two or more fingers(12), two or more transfer bars(16), longitudinally and horizontally transferring devices, and an elevating/transferring device. The fingers support workpieces. The transfer bars are integrally formed in the fingers and are separated from each other along the transferring direction of the workpieces. The longitudinally transferring device longitudinally transfers the transfer bars. The lifting/transferring device vertically transfers the transfer bars. The horizontally transferring device transfers the transfer bars in the transferring direction of the workpieces.

Description

THREE DIMENSIONAL PLIABLE TRANSFER UNIT FEEDING APPARATUS}

The present invention relates to a three-dimensional flexible transfer unit supply apparatus for transferring a workpiece in three dimensions in accordance with the process sequence.

For example, in the press mold process, a method is known in which a plurality of molds are provided in a single mold, and the workpieces are sequentially processed while being transferred from the front process to the back process. For this purpose, it is necessary to send out a single workpiece from front to back in the order of molds. In order to perform the above-mentioned dispensing operation, there is known a transfer apparatus in which a pair of parallel fingers is provided in the left and right directions based on the traveling direction of the workpiece.

In the three-dimensional transfer device, the left and right fingers are approached in parallel so as to grasp the workpiece from both sides, thereby holding the workpiece (clamping). Then, it rises and takes out the to-be-molded object from the metal mold | die of the previous process (shift). After moving forward in the advancing direction of the workpiece, after descending, the fingers on both sides are separated from each other to transfer the molding to the next process (trans). After that, the operation returns to the original position before the finger operation is started, and the above operation is repeatedly performed.

On the other hand, the workpieces are becoming more and more complicated, and the number of molds provided to the three-dimensional transfer apparatus is increasing and the precision of machining is increased. However, the conventional three-dimensional transfer apparatus does not adequately cope with this. For example, when molding is required on both the upper, lower, left, and right outer circumferential surfaces of the molded article, there is a problem in that it is difficult to precisely control the position and thus the molding precision of the workpiece is not obtained. In addition, there is a problem that the processing residues of the workpiece to be generated during the molding flows into the three-dimensional transfer device to interfere with the operation of the device, but there is a problem that does not properly handle this. In addition, there is a problem in that the configuration for transporting the workpiece in three dimensions is not provided compactly, the size of the device is increased and the configuration is complicated.

As a conventional transfer apparatus, a two-dimensional transfer apparatus for performing a transfer operation of a workpiece by a two-dimensional operation rather than a three-dimensional operation, such as Korean Patent No. 10-0731636, is also known. Such an article is essentially limited in the workpiece to be processed because the finger is continuously placed inside the mold assembly. In addition, after the workpiece is transferred, the time required for the evacuation of the finger between each mold has a problem that takes a long time of molding.

Korea Patent Registration No. 10-0731636

The present invention is to solve the problems of the prior art, including the problems disclosed above, in the three-dimensional flexible transfer unit supply apparatus capable of three-dimensional movement of the finger, the number of molds, the accuracy of processing, the whole of the workpiece An object of the present invention is to provide a three-dimensional flexible transfer unit supply device that can cope with surface forming. In addition, it is an object of the present invention to provide a three-dimensional flexible transfer unit supply device that can prevent the inflow of foreign matter to obtain a stable operation of the device, the configuration of the device can be made compact.

The three-dimensional flexible transfer unit supply apparatus according to the present invention comprises: at least two fingers transferable in three dimensions in all directions and supporting the workpiece; At least two transfer bars formed of one body with the at least two fingers and spaced apart from each other along a transfer direction of the workpiece; A front and rear transfer device for transferring the at least two transfer bars together in the front and rear directions; A lifting and lowering transfer device for supporting and transporting at least two points spaced apart from each of the transfer bars so as to transfer the at least two transfer bars together in a vertical direction; And a left and right transport device for supporting and transporting at least two points spaced apart from each of the transport bars so that the at least two transport bars may be transported together in the transport direction of the workpiece. The result is a compact three-dimensional flexible transfer unit feeder with precise positioning without unwanted movement.

In order to realize a stable operation of the three-dimensional flexible transfer unit supply apparatus, the transfer bar has a rotational freedom degree rearward from the workpiece and a frontward direction closer to the workpiece has a degree of freedom in the front-rear direction. do.

In addition, in order to control the accurate position of the lift transfer device, the lift transfer device, the lifting bar which operates the motor as a drive source; And a pneumatic cylinder for more precisely controlling the transfer of the at least two transfer bars.

In addition, in the present invention, in order to fully implement a complex molding, the finger holder for fixing the at least two fingers at a predetermined interval; A finger carrier fixing the finger holder to the at least two transfer bars, respectively; And a rotary pneumatic cylinder engaged with at least one of the at least two fingers and the contact portion of the finger holder. In addition, to improve the performance of gripping the workpiece, the proximity sensor provided to the finger; A movable part interlocked with a relative movement between the workpiece and the finger; And an elastic member interposed between the movable portion and the proximity sensor.

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According to the present invention, it is possible to smoothly cope with an increase in the mold process, an increase in the production process, an increase in the number of molds, and an increase in the precision of machining required by combining a single mold. In addition, it is possible to improve the molding degree of the workpiece to cope with the whole surface molding of the workpiece, thereby increasing the type of the workpiece to be processed and its quality can be improved. In addition, the product is compact and can be implemented at low cost. In addition, it is possible to obtain a stable operation of the device by preventing the inflow of foreign matter. In addition, it is possible to produce a high-quality product by minimizing the damage of the product generated when using a transfer device such as a conventional vacuum pad.

1 is a perspective view showing a state of use of the present invention the press apparatus.
2 is a perspective view of the transfer apparatus of the present invention.
3, 5, and 7 are internal perspective views of external structures such as an outer case and a support panel of the transfer apparatus of the present invention being removed, illustrating relevant parts of the front and rear conveying apparatus, the shank conveying apparatus, and the left and right conveying apparatus, respectively. drawing.
Figure 4 is a view showing a state in which the finger is moved forward by the front and rear transfer device, the structure, such as the outer case and the support panel of the transfer device.
6 is a view showing a state in which the finger is moved upward by the lift transfer device, the structure such as the outer case and the support panel of the transfer device is removed.
Figure 8 is a perspective view of the support panel from the opposite side.
9 is a view showing a state in which the finger is moved to the left by the left and right transfer device.
10 is a schematic cross-sectional view illustrating the use state of a finger.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<First Embodiment>

1 is a perspective view showing a state of use of the press apparatus according to the first embodiment of the present invention. Referring to FIG. 1, the three-dimensional flexible transfer unit supply device 3a (3b) (hereinafter, the three-dimensional flexible transfer unit supply device may be abbreviated as a transfer device in the press apparatus 1, but this is the same three-dimensional flexible transfer unit). A pair is provided left to right next to each other. Hereinafter, the article referred to as No. 3 is assumed to reach any three-dimensional flexible transfer unit supply apparatus of either. Thus, since the transfer apparatus is provided inside the press apparatus, there is no fear that foreign substances generated from the outside of the press apparatus intrude into the transfer apparatus. Of course, since the foreign matter that interferes with the operation of the device is reduced, the accuracy of processing is of course improved.

The work board 4 is placed between the pair of transfer devices to process the workpiece. The workpiece can be conveyed sequentially by a transfer device. A press device 5 is provided above the work panel 4 to perform molding of the workpiece by mechanical pressure or the like. The work panel 4 and the press apparatus 5 list at least two (although not impossible, but the intention of using the apparatus in two or more cases) along the conveying direction of the workpiece. As a result, any workpiece may be processed by each mold after being sequentially transferred by the transfer apparatus of the present application.

The conveyor apparatus 2 which transfers a workpiece | work to be processed in the direction crossing a pair of transfer apparatus 3a, 3b is provided, and conveys a workpiece | work. An operating panel 6 is provided on one side of the outer side of the press apparatus 1 so that the operator can operate the entire system.

2 is a perspective view of the transfer apparatus of the present invention. Referring to FIG. 2, the transfer device 3 is provided with an outer case 10 that separates most of the moving part of the device from the outside. By the outer case 10, foreign matters due to the processing residue or completely different from the molding of the workpiece to be placed on the work panel 4 cannot enter the inside of the transfer apparatus. As a result, a problem of malfunction occurring during the operation of the transfer apparatus or a problem of deterioration of the precision of the device due to entry of residues does not occur. In addition, the support panel 11 is provided inside the outer case 10. The support panel functions as a structure to support the operating part of the device and a partition wall to block the movement of foreign substances, thereby blocking the inflow of foreign substances along with the outer case.

At least one finger 12 supporting one end of the workpiece is arranged in the advancing direction of the workpiece, and the finger 12 is arranged in one direction and fixed to the finger holder 14. The finger holder 14 is supported by a pair of left and right finger carriers 15. One side of the transfer bar 16 is fixed to the finger carrier 15. As a result, the finger 12, the finger holder 14, the finger carrier 15, and the transfer bar 16 are moved in one body as a whole.

Hereinafter, a configuration for transferring the finger in the front-rear direction (clamping direction), the left-right direction (trans direction), and the lifting direction (shift direction) will be described. In the following description, almost all articles such as the transfer bar 16 have a pair of left and right structures for improving the operation accuracy of the transfer device. Therefore, for convenience of explanation, either one of the left and right examples will be described, which corresponds to all of the left and right structures, but both sides are provided, but only one side is described. Shall be. On the other hand, each drawing is defined as a three-dimensional axis in the front and rear / lifting / left and right directions, which is the same in all the description with reference to the drawings.

3 is a view showing a state in which structures such as an outer case and a support panel of the transfer apparatus are removed. Referring to Figure 3 will be described the structure and operation of the front and rear transfer device. The front and rear conveying apparatus is a device for pushing the finger toward the workpiece, so that a pair of opposing fingers can hold the workpiece, and can hold or place the workpiece.

The front and rear motors 17 transmit power to the worms 32 through the front and rear belts 31. Here, the front and rear belt 31 may be provided with irregularities on the inner surface of the belt like the V belt. This allows precise control of the feed distance. Idle rollers can be installed to control the tension of the belt. The worm 32 is screwed with the worm gear 33, so that the rotational force of the worm 32 is changed to the linear displacement movement of the worm gear 33. Since the worm gear 33 is integrated with the lower end of the LM guider 36, the displacement movement of the worm gear 33 is transmitted to the LM guider 36 and the LM slider 37 as the displacement movement of the worm gear 33. Since the extending direction of the LM guider 36 is orthogonal to the extending direction of the worm gear 33, the LM slider 37 is free to move in the direction perpendicular to the worm gear 33. On the other hand, the lifting support bar 38 is provided upward from the LM slider 37, and the lifting support bar 38 is inserted into and supported by a hole formed in the transfer bar 16. Thus, the rear end side of the transfer bar 16 has a degree of freedom for the rotational movement. As a result, the rotational movement of the worm 32 is implemented by changing the displacement movement of the worm gear 33, the displacement movement of the LM guider 36, the displacement movement of the LM slider 37, and the displacement movement of the transfer bar 16. 12 becomes able to exercise back and forth.

In the present invention, in order to ensure that the front and rear conveying apparatus is accurately conveyed in the front and rear direction, various consequent matters are employed, and the apparatus for preventing unwanted fluctuations during the operation of the front and rear conveying apparatus will be described in detail.

First, since the worm 32 may be supported at both ends of the outer case 10 and the support panel 11, the worm 32 may be maintained in its position and extension direction substantially completely. In addition, the worm 32 and the worm gear 33 can be prevented from shaking at the time of mutual operation by sufficiently lengthening the area of the worm gear 33 in the extending direction of the worm gear 33. In addition, the LM guider 36 is supported in a recessed manner by the front and rear guider 34 provided on the front and rear brackets 35 fixed to the outer case 10, and the front and rear guiders 34 and the LM guider 36 are supported. Is supported to a sufficient length, so that the oscillation can be prevented when the LM guider 36 moves back and forth. In addition, when the transfer bar 16 is pushed and pulled by the lifting support bar 38, fluctuation during forward and backward movement is prevented by the transfer bar guider 40 of four horizontal and vertical angles provided to the lifting bracket 39. Can be. In addition, since the transfer bar guider 40 is sufficiently maintained in the horizontal distance and vertical distance, it is possible to further prevent the fluctuation of the front and rear movement. The front end of the transfer bar 16 by the transfer bar guider 40 has a degree of freedom for linear movement in the front and rear directions.

FIG. 4 is a view showing a state in which a structure such as an outer case and a support panel of the transfer device is removed, showing a state in which the finger 12 is moved forward by the front and rear transfer device-a state in which a workpiece is held. 3 is a view showing a state in which the finger 12 is moved backwards-a state in which the workpiece is not held, the worm gear 33, LM guider 36, LM slider 37, lifting It can be seen that the support bars 38 are all moved forward with high precision.

In the above description, the finger 12 is moved forward by the front and rear transfer device. However, when the direction of rotation of the front and back motor 17 is reversed, the finger 12 is moved backward by the front and rear transfer device. It is predictable enough.

5 is a view showing a state in which structures such as an outer case and a support panel of the transfer apparatus are removed. The structure and operation of the lift transfer device will be described with reference to FIG. 5. The lifting and lowering apparatus can carry out a conveying operation of lifting the workpiece to be placed on the working board 4 or conversely placing the workpiece on the working board 4.

The rotational force of the elevating motor 18 provided on either side in the left and right direction of the transfer device is transmitted to the first rotating bar 51 by the elevating belt 50. Here, the lifting belt 50 may be provided with a V belt similar to the front and rear belts. Gears are formed on both end sides of the first rotation bar 51, and the gears are engaged with the teeth of the second rotation bar 52. The teeth of each of the rotary bars 51 and 52 are provided to the same standard, so that each of the rotary bars 51 and 52 may rotate at a constant speed. This is to ensure that the lifting bar (55, 56) is elevated by the rotation bar (51, 52) spaced apart from each other in the front and rear direction to be a constant speed. Of course, when adjusting the teeth of each connecting ring may be different, but it is preferable to make the same for convenience. The rotary bars 51 and 52 have different structures in left and right directions and thus do not achieve symmetry in the left and right directions, and are different from those of other transfer devices.

When the rotary bars 51 and 52 are rotated, the lifting pins (see 53 of FIG. 8) (see 54 of FIG. 8) provided on one side of the rotary bars 51 and 52 are also rotated. The elevating pinions 53 and 54 mesh with an elevating rack (see 59 in FIG. 8) 60 provided on one side of the elevating bars 55 and 56, and the elevating racks 59 and 60 are elevating bars ( One side of the 55 and 56 is formed in the longitudinal direction of the lifting bar (55, 56). Therefore, the lifting bars 55 and 56 are conveyed in the vertical direction when the lifting pinions 53 and 54 are rotated. The elevating bars 55 and 56 support the elevating bracket 39, so that the elevating bracket 39 is moved upward and downward. Since the lifting bracket 39 supports the transfer bar 16, the transfer bar 16 is transferred in the vertical direction.

In the present invention, a result of various worries have been adopted in order to ensure that the lift transfer device can be accurately transferred in the up and down direction, and the device for preventing unwanted swing during operation of the lift transfer device will be described in detail.

First, when performing the lifting operation, the horizontal level should be correct for the front, rear, left and right directions. In order to satisfy this, as in the other conveying apparatus, not only is provided in a paired structure in the left and right direction, but also employed in a manner supported by the pair in the front and rear direction. In detail, the first rotating bar 51 and the second rotating bar 52 are provided, respectively, and each component is provided with two spaced apart from each other in the front-back direction. Of course, two are also provided in the left and right directions. In addition, since each movement is precisely synchronized mechanically, there is no possibility of swinging forward, backward, left and right.

On the other hand, in order to suppress the fluctuations generated when the lifting bars 55 and 56 are operated in the vertical direction, the lifting guides 57 and 58 guide the lifting bars 55 and 56. If the supporting area of the lifting guides 57 and 58 is sufficiently large, it may not be a problem whether the lifting guides 57 and 58 are plural in number. In the embodiment, two lifting guiders are provided for the first rotating bar and one relatively large lifting guider for the second rotating bar.

In addition, even by the above structure, in order to suppress the fluctuation that may appear amplified when the length of the transfer bar 16 is long, a pneumatic cylinder 65 and a pneumatic piston 61 may be further provided. Here, the pneumatic cylinder 65 may be supported by a second idle frame (see 63 in FIG. 8), which is freely displaced in the lateral direction with respect to the outer case 10, and the end of the pneumatic piston 61 is the lifting bracket 39. Is fastened to. As a result, the vertical movement distance of the finger 12 can be more precisely controlled by controlling the operation of the pneumatic piston 61. As a result, two lifting bars 55 and 56 and one pneumatic cylinder 65 act so as to accurately control the feed displacement when the shanghai conveying device operates. To control. In addition, the first elevating guider 57 may be supported by a first idle frame (see 62 in FIG. 8) in which the left and right displacement of the supporting panel 11 is free. The second lifting guider 58 may be supported by the second idle frame 63. Thereby, in the state where the positions of the pneumatic cylinder 65 and the lifting guides 57 and 58 are fixed, the article which moves relative to this can stably move.

FIG. 6 is a view showing a state in which a structure such as an outer case and a support panel of a transfer device is removed, showing a state in which a finger 12 is moved upward by a lifting and lowering device, a state in which a workpiece to be lifted up. 4 shows that the lifting bars 55 and 56 are all moved upwards with high precision as compared to the drawing showing the state in which the finger 12 is moved downward-the state in which the workpiece is not lifted. Can be. In the above description, the finger 12 is moved upward by the elevating feeder. However, when the direction of rotation of the elevating motor 18 is reversed, the finger 12 is moved downward by the elevating feeder. It is predictable enough.

7 is a view showing a state in which structures such as an outer case and a support panel of the transfer apparatus are removed. The structure and operation of the left and right transfer apparatus will be described with reference to FIG. 7. The left and right conveying apparatus is a device for moving the finger 12 in the left and right directions in the state in which the workpiece to be placed on the work panel 4 is supported or not supported by the finger 12. For example, in the state in which the workpiece 12 is supported by the finger 12, the workpiece 12 moves in the direction of progress of the workpiece, or the workpiece 12 is laid down on the finger 12 to return to the direction opposite to the direction of movement of the workpiece. There may be cases.

A pair of left and right pinions 70 and 71 are provided on the driving shaft of the left and right motors 19 supported by the support panel 11 in the front-rear direction. The left and right racks 72 and 73 meshed with the left and right pinions 70 and 71 operate integrally with the idle frames 62 and 63, respectively. As described in the above description of the lift transfer device, lift guides 57 and 58 are fastened to the idle frames 62 and 63 so that the idle frames 62 and 63 are transferred together with the lift transfer device. As a result, when the left and right transfer device operates, the left and right movement is achieved by carrying out the action of transporting the lifting and lowering transfer device.

The configuration in which the idle frame is freely and accurately supported while displacing in the left and right directions will be described in detail. The support guide 75 is coupled to the support panel 11. The support guider 75 supports the support slider 76 with grooves extending in the left and right directions. Therefore, the support slider 76 is movable in the left-right direction with respect to the support guider 75. An idle frame 62 is coupled to the support guide 75. Meanwhile, as clearly understood through a perspective view of the front side of the support panel shown in FIG. 8 from the opposite side, the support guiders 75a and 75b and the support sliders 76a and 76b with respect to the first idle frame 62. Is provided in pairs up and down. In addition, a pair of support guiders 75c and 75d and support sliders 76c and 76d are provided on the second idle frame 63, respectively. Of course, the increase in number would of course be expected. Of course, the omission of the description in the symmetrical structure described in the heading of the present embodiment is the same in the left and right transfer apparatus provided symmetrically in the left and right directions. With this configuration, even in the case of the left and right transfer apparatus, by providing the structure of the support guider 75 and the support slider 76 spaced apart from each other in the front-rear direction, it is possible to implement the high-precision transfer in the left and right direction. In addition, by implementing the left and right racks 72, 73 and left and right pinions 70, 71, of course, it is possible to implement a high-precision transfer in the left and right directions.

By such a configuration, the rotational force of the left and right motors 19 moves up and down through the left and right pinions 70, 71, the left and right racks 72, 73, and the idle panels 62, 63 sequentially. Is delivered. As a result, it is possible to move the finger 12 in the left and right direction by moving the lifting and lowering transfer device having the freedom of movement in the vertical direction in the left and right directions, and the operating points for providing a force to the transfer bar 16 are shared the same. It becomes.

9 is a view showing a state in which the finger is moved to the left by the left and right transfer device. 4 is a view showing a state in which the finger is moved to the right side, it can be seen that the fingers 12 all moved to the left with high precision. In the above description, the finger 12 is moved to the left by the left and right feeder. However, when the rotation direction of the left and right motors 19 is reversed, the finger 12 is movable to the right by the left and right feeder. It is predictable enough.

10 is a cross-sectional view illustrating the use state of the finger. Referring to FIG. 10, the finger 12 has a finger case 91, a proximity sensor 92 provided inside the finger case 91, and a state supported on one side of the proximity sensor 92. The elastic member 93 extending to the other side, and one side is extendable to the outside of the finger 12 and the other side includes a movable portion 90 for supporting the elastic member 93. The movable unit 90 may be a clamp (not shown) that supports the end of the workpiece or a clamp side supporter that is interlocked with the clamp as a separate article from the clamp. However, the movable unit 90 may be moved to the proximity sensor 92 side in association with the clamping state of the workpiece, and may be anything as long as the movement to contract the elastic member 93 is possible.

The action according to the structure as shown is described. When the finger 12 is moved forward by the front and rear conveying apparatus in the state where the up / down / left and right directions are precisely controlled, the clamp provided at the end of the finger 12 first touches the workpiece. When the front and rear conveying apparatus is further moved after the clamp touches the workpiece, the movable part 90 is pushed into the finger 12. Pushed in the movable portion 90 is to enter the inside while contracting the elastic member (93). Such movement of the finger 12 is detected by the proximity sensor 92, and can stop the operation of the front and rear transfer apparatus based on the detected signal. When the front and rear conveying apparatus is conveyed to the rear side, the movable portion 90 can be pushed out by the action of the elastic member 93. According to the configuration of the finger, the workpiece can be supported by pushing the workpiece with a force corresponding to the elastic force of the elastic member 93 in a state where the movement of the front and rear transfer apparatus is stopped. This allows the workpiece to be picked up and transported more precisely. In addition, according to the finger 12, when the workpiece is changed, only the movable portion 90 is to be replaced, there is no need to reinstall or move the driving device when changing and replacing the workpiece, regardless of the size of the workpiece The operation can be performed, and the time for reinstalling the movable unit 90 can be shortened, thereby contributing to the productivity improvement of the transfer apparatus.

On the other hand, in recent years, the workpiece has to be changed due to the complexity and elaboration of the workpiece. In this case, referring to FIG. 3, a rotary pneumatic cylinder 13 is provided at a contact portion of the finger 12 and the finger holder 14, and the air pressure is selectively applied to the rotary pneumatic cylinder 13. can do. In the embodiment, the pneumatic pump 20 is provided at the rear of the finger carrier 15, but is not necessarily limited thereto. In addition, the manner in which the finger 12 can be rotated is not limited to the form of the rotary pneumatic cylinder 13 and the pneumatic pump 20, and various methods such as a servo motor can be considered as the rotating mechanism of the finger 12. It may be. However, in view of the rapidity / stability of the rotation, the constant of the rotation angle, and the like, a form using pneumatic pressure is preferable.

The operation of the finger rotating mechanism will be described. After the molding operation in any one mold is finished, the workpiece 12 is supported on the finger 12 to move to the next mold. In this case, a certain moving time is required, and the workpiece can be rotated at the required rotational angle by applying air pressure to the rotary pneumatic cylinder 13 in this short time.

Meanwhile, the front and rear motors 17, the lifting motors 18, and the left and right motors 19 are known as the servo motors, and the precise feeding distances of the respective feeding devices are known and precisely controlled.

&Lt; Embodiment 2 >

The second embodiment of the present invention may adopt the configuration of the first embodiment as it is, or may be employed by appropriately changing the configuration, and in the second embodiment, the part without specific description shall use the description of the first embodiment as it is, and the same configuration. The same reference numerals are used to describe the same.

The second embodiment is characterized in that the unit supply apparatus according to the present invention can be used even when the shape of the workpiece is changed, especially when the overall length of the workpiece is too short or too long.

11 is a front view of a three-dimensional flexible transfer unit supply apparatus according to a second embodiment of the present invention, Figure 12 is a side view.

Referring to FIGS. 11 and 12, a working panel 4 on which a molding is placed is placed inside the press apparatus 1, and transfer devices 3a and 3b are provided on the left and right sides of the working panel. The workpiece is transferred to the conveyor apparatus 2 and supplied to the inside of the press apparatus 1. Thereafter, the workpiece is machined by the front, rear, left and right transfer devices as described above through the first embodiment. However, if the workpiece is too small or too large, a problem arises in that the workpiece 12 cannot be grasped by the fingers 12 of the transfer devices 3a and 3b on both sides, even if the forward and backward feeder moves as far as possible in the moving distance range. . In order to solve this problem, it may be considered to increase the size of the transfer device 3, but since the use of a large sized part not only increases the manufacturing cost, but also increases the overall size of the press device 1. It is difficult to install in the field and the space occupied is also a problem.

In the second embodiment, in consideration of such a problem, the transfer device 3 includes stroke adjusting devices 100a and 100b, which are generally conveyed in the front-rear direction.

Hereinafter, the detailed configuration of the stroke control device will be described. The rotational force generated by the stroke control motor 101 generating power is transmitted to the ball screw 102 through the stroke belt 105 to rotate the ball screw 102. The ball spline 103 is connected to the ball screw 102, so that the ball spline 103 may linearly move in the front-rear direction along the direction in which the ball screw 102 is rotated. The ball spline 103 is configured to interlock with the outer case 10 of the transfer device 3. As a result, the transfer device 3 can be conveyed in the front-rear direction along the rotational direction of the stroke control motor 101. On the other hand, at least one LM guide device 104 is provided at the bottom of the transfer device 3 in order to increase the linearity of the transfer operation of the transfer device 3 by the stroke adjusting device 100. The LM guide device 104 may be composed of an LM guider fixedly provided like the outer case 10 or the outer case 10 and an LM slider fixedly provided to the transfer device 3.

The operation of the stroke adjusting device 100 will be described in detail. Due to the extremely short length of the workpiece, the workpiece may not be grasped or transported only by the stroke in the front-back direction of the front-back feeder. In this case, the stroke adjustment device 100 can be used to control the position so that the transfer device 3 can be brought closer to the work table 4. On the contrary, the length of the workpiece is extremely long, so that the front-and-back conveying device may interfere with the workpiece and cannot move the workpiece. In this case, the stroke adjusting device can be used to control the position of the transfer device 3 away from the work table 4.

According to the second embodiment, even in the case of transfer apparatuses and press apparatuses of the same size and size, it is possible to obtain the advantage that the use of the workpiece to be processed increases. Furthermore, the effect which can reduce the number of press apparatus which should be provided can also be acquired.

In the same manner, due to the properties of the workpiece or the limitation of the operation of the transfer apparatus, an apparatus for conveying the work panel 4 up and down may be further provided when the stroke of the shanghai conveying apparatus is insufficient. It is included in the idea of However, in the case of the press apparatus 1 in which the workpieces are sequentially conveyed in the state of being placed on the same workbench 4, the length of the workpieces is often long, as shown in the description of the second embodiment. It is easy to guess that the throttle control device is more urgently needed.

The spirit of the invention is not limited to the above embodiments, and it will be apparent to those skilled in the art that various embodiments included in the spirit of the present disclosure may be included in the spirit of the present disclosure.

 Since the precision of the operation of each component is improved, it can be used suitably when a large number of metal mold | die is required or the precision of shaping | molding is calculated | required. Even if molding of all sides of the workpiece is required, it can be conveniently handled. By preventing foreign material from entering the device, stable operation of the device can be obtained. The compact structure of the device can reduce the material cost. The advantage of increasing the number of workpieces that can be processed with the same press apparatus can be expected.

Press apparatus 1
Three Dimensional Flexible Transfer Unit Supply Unit 3
Feed Bar 16
Finger 12
Stroke Adjuster 100

Claims (16)

At least two fingers transferable in three dimensions and supporting the workpiece;
At least two transfer bars formed of one body with the at least two fingers and spaced apart from each other along a transfer direction of the workpiece ;
A front and rear transfer device for transferring the at least two transfer bars together in the front and rear directions;
Lifting and transporting device for supporting and transporting the at least two transfer bar together , at least two points spaced apart from each of the transfer bar to be transported in the vertical direction; And
And a left and right transfer device for supporting and transferring at least two points spaced apart from each of the transfer bars so that the at least two transfer bars can be transferred together in the conveying direction of the workpiece . The method of claim 1,
The transfer bar,
The rear far from the workpiece has a degree of freedom of rotation,
A three-dimensional flexible transfer unit supplying device having a degree of freedom in the front-rear direction in the front near the workpiece . The method of claim 1,
The elevating transfer device is a three-dimensional flexible transfer unit supply device for supporting the three points of the transfer bar for transport. delete delete delete The method of claim 1,
The lift transfer device,
A lifting bar operated by a motor as a driving source; And
And a pneumatic cylinder for more precisely controlling the transfer of the at least two transfer bars . The method of claim 1,
A finger holder for fixing the at least two fingers at predetermined intervals;
A finger carrier fixing the finger holder to the at least two transfer bars, respectively; And
And at least one of the at least two fingers and a rotary pneumatic cylinder engaged in a contact portion of the finger holder. The method of claim 1,
A proximity sensor provided to the finger;
A movable part interlocked with a relative movement between the workpiece and the finger; And
Three-dimensional flexible transfer unit supply apparatus comprising an elastic member interposed between the movable portion and the proximity sensor. delete delete delete delete delete delete delete

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