JPH0373423B2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The present invention relates to a two-dimensional transfer device.

[Prior Art] A two-dimensional transfer device is a device in which, for example, a plurality of automatic machines necessary for processing a workpiece are arranged in the order of processing, and the workpiece is moved vertically and laterally between the machines. Accordingly, various types of devices have been used in the past. The drive system of the two-dimensional transfer device involves fixing a rack to the feed bar as a moving body that moves the workpiece horizontally and vertically, transmitting the driving force of the prime mover to the rack via a pinion, and moving the feed bar in the horizontal and vertical directions. There is something to be moved. Although this method has the advantage of having a simple structure and being able to reliably transmit lateral driving force, when the feed bar that holds the workpiece is moved vertically by the vertical drive unit, the lateral movement The problem is that the prime mover must also be moved up and down. In other words, with this type of system, the output of the device increases as the prime mover moves up and down, and the size of the device inevitably increases.Also, due to the mass of the prime mover, the inertia in the vertical direction increases. This results in problems such as difficulty in obtaining the targeted high-speed motion. Furthermore, since the prime mover is movable, the wiring to the prime mover becomes long, and there are also problems such as a risk of wire breakage.

[Object of the Invention] An object of the present invention is to enable a feed bar to be movable in the vertical and lateral directions while both the vertical drive section and the lateral drive section of a two-dimensional transfer device are fixedly arranged on a frame.

[Structure of the Invention] In order to achieve the above object, the present invention has a structure including a frame, a vertical slide part that is supported to be vertically movable with respect to the frame, and a vertical slide part that is fixedly arranged on the frame and that moves the vertical slide part vertically. a first horizontal guide section disposed on the vertical sliding section; a drive lever swingably supported by the frame and operatively connected to the vertical sliding section; A driven lever that is swingably supported, a connecting rod that connects the driving lever and the driven lever and forms a parallel link together with the frame, the driving lever, and the driven lever, and a second lateral guide portion that is disposed on the driven lever. and a feed bar which is held by the first lateral guide part and the second lateral guide part and has a feed mechanism part extending in the feeding direction, a lateral drive part supported by the frame, and a vertical slide part integrated with the feed bar. a driven shaft that moves up and down and is rotatably supported by the vertical slide section and includes a feed wheel that transmits feeding force to the feed mechanism section of the feed bar, and a driven wheel; a first lever, a drive shaft supported by a frame and comprising a drive wheel driven by a lateral drive section, and a second lever disposed swingably around the drive shaft.
2, comprising: a lever; and an intermediate shaft having an intermediate wheel coupled to the end of the first lever and the end of the second lever and capable of interlocking with each of the driving wheel and the driven wheel. It is a dimensional transfer device.

[Specific Description of the Invention] Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic side view of a two-dimensional transfer device according to an embodiment of the present invention, and FIG.
FIG. 3 is an enlarged sectional view taken along the line, and FIG. 3 is a perspective view showing the main part of FIG. 2.

The two-dimensional transfer device 10 sequentially moves a workpiece 13 along a processing line D from point A to point B and from point B to point C using a holder 12 suspended at a predetermined pitch in the length direction of a feed bar 11. Regarding a moving device, for example, when looking at movement from point A to point B, first the workpiece 13 held at point A by the holder 12 is moved upward by moving the feed bar 11 up and down, and then the feed bar 11 is moved laterally to a position above point B, and the workpiece 13 is further moved downward by downward movement of the feed bar 11 to be conveyed to point B.

A guide surface 15 that stands upright in the vertical direction is formed on the fixed frame 14, and a vertical slide section 16 is supported on the guide surface 15 so as to be movable up and down with respect to the frame 14. The vertical slide section 16 is connected to an actuator 17 as a vertical drive section fixedly arranged on the frame 14 via a crank arm 18A and a link 18B.
By rotating 8A in the direction of arrow E, it is reciprocated in the vertical direction while being guided on the guide surface 15.

As shown in FIG. 2, the vertical sliding section 16 has a plate shape as a whole, and a pair of upper and lower roller-shaped first lateral guide sections 19 that can support the feed bar 11 are provided at the upper and lower positions of the vertical sliding section 16. ing. The frame 14 is provided with a drive lever 20, and the drive lever 20 is supported so as to be swingable in the direction of arrow F with respect to the frame 14 via a shaft portion 23. It is said to be L-shaped. Two swinging arms 21, 22
Of these, the swing arm portion 21 is movably connected to the vertical slide portion 16 via a link 22A. A lower driven lever 24 is provided at the same height as the drive lever 20 and in a pre-process position of the processing line D. The lower driven lever 24 is the drive lever 2
0, it is swingably supported by the frame 14, and has an L-shape that is substantially the same shape as the drive lever 20 and includes two swing arms 25 and 26. Swing arm portion 21 of drive lever 20 and lower driven lever 24
The swinging arm 25 is connected by a connecting rod 27, and the frame 14, the drive lever 20, and the lower driven lever 24 form a parallel link 28. As a result, the lower driven lever 24 is interlocked with the drive lever 20 and is able to swing in the direction of arrow G using the shaft portion 29 supported by the frame 14 as a fulcrum. An upper driven lever 31 is supported on the frame 14 at a position above the lower driven lever 24 and is interlocked with the lower driven lever 24 via a link 30A and is swingable in the direction of arrow G about a shaft portion 30 as a fulcrum. There is.
Roller-shaped second lateral guide portions 33 are provided on the swinging arm portion 32 of the upper driven lever 31 and the swinging arm portion 26 of the lower driven lever 24 in an upper and lower pair.

The feed bar 11 is held by the first lateral guide part 19 and the second lateral guide part 33, which are arranged in pairs on the upper and lower sides, respectively. Feed bar 11 is
The feed bar 11 has a cylindrical body extending in the feeding direction of the processing line D, and furthermore, a rack 34 as a feeding mechanism is provided extending in the feeding direction on the side surface of the feed bar 11. The feed bar 11 held by the first lateral guide part 19 and the second lateral guide part 33 is vertically movable due to the presence of the parallel link 28 as the vertical slide part 16 moves up and down. The suspended holding body 12 is movable in the vertical direction.

The feed bar 11 is moved in the lateral direction by the rotation of a pinion 35 serving as a feed wheel that meshes with the rack 34. A driven shaft 37 including the pinion 35 and a driven wheel 36 is connected to the vertical slide portion 16 via a bearing 38. Rotatably supported. As a result, the driven shaft 37
It is said that it can move up and down together with 6. Driven shaft 37
A first lever 39 that is swingable around a driven shaft 37 is disposed.

The prime mover 40 as a lateral drive unit is connected to the frame 14
The rotational force of the prime mover 40 is supported by the frame 1.
The signal is transmitted to a drive shaft 41 which is rotatably supported by a motor. The rotational force is transmitted by suspending a driving wheel 42A attached to a shaft 42 of a prime mover 40 and a driving wheel 43 attached to a drive shaft 41 using a belt 44. The drive shaft 41 includes
A second lever 45 that can swing around the drive shaft 41 is disposed, and an end 46 of the second lever 45 and an end 47 of the first lever 39 are connected by an intermediate shaft 48, and each has an intermediate shaft. It is rotatable about a shaft 48. The drive wheel 4 is attached to the intermediate shaft 48.
3 and an intermediate wheel 4 that can be interlocked with the driven wheel 36.
9 are provided, each with a driving wheel 43 and an intermediate wheel 4.
9. Belts 50, 5 are attached to the intermediate wheel 49 and the driven wheel 36.
1 is suspended, and the rotational force transmitted from the prime mover 40 to the driving wheel 43 is transferred to the driven wheel 36 via the intermediate wheel 49.
It is possible to transmit to. In this way, the driven vehicle 3
The rotation of the prime mover 40 transmitted to the driven vehicle 3
7 is rotated, and thus the pinion 35 is rotated. Pinion 35 meshing with rack 34
The rotation of the feed bar 11 allows the feed bar 11 to move laterally, and the forward and reverse rotation of the prime mover 40 causes the holder 12 held by the feed bar 11 to reciprocate laterally between AB and BC along the processing line D. It is possible to do so.

The driven shaft 37 is movable up and down together with the up and down slide portion 16, thereby making it possible to move the feed bar 11 up and down while keeping the rack 34 and pinion 35 in mesh with each other. The drive shaft 41, the intermediate shaft 48, and the driven shaft 37 are connected by a first lever 39 and a second lever 45, and when the driven shaft 37 moves up and down together with the vertical slide section 16, the first lever 39 and Each of the second levers 45 is bent around the intermediate shaft 48. As a result, even if the vertical slide section 16 moves up and down and the driven shaft 37 moves up and down accordingly, the rotational force of the prime mover 40 supported by the frame 14 is transmitted from the driving wheel 43 to the intermediate wheel 49 to the driven wheel 36. The signal is transmitted to the pinion 35 through the feed bar 11.
can be moved laterally.

The diameters of the driving wheel 43 and the driven wheel 36 are the same. This is because the driven wheel 36, the driven shaft 37, and the pinion 35 rotate relative to the vertical sliding portion 16 when the vertical sliding portion 16 moves up and down and the driving wheel 43 and the driven wheel 36 move relative to each other. This is to prevent As a result, the pinion 35 can be driven only by the operation of the prime mover 40 without being affected by the bending motion of the levers 39 and 45 accompanying the vertical movement of the vertical slide portion 16, and the feed bar 11 can be driven by the prime mover 40.
Lateral movement is possible only by the operation of the

Next, the operation of the above embodiment will be explained.

First, when the vertical slide section 16 is moved downward by the operation of the actuator 17, the first horizontal guide section and the second horizontal guide section 19, 33 are lowered by the vertical slide section 16 and the parallel link 28 connected to the vertical slide section 16. It will be moved.
As a result, the first and second horizontal guide portions 19, 3
The feed bar 11 held at 3 is moved downward, and the holding body 12 can be moved downward in each step of A, B, and C, and the workpiece 13 can be held by the holding body 12. . After each holding body 12 is held by the workpiece 13 in this way, the actuator 17 is reactivated, and the vertical slide portion 1
6 and the parallel link 28 connected to the vertical slide section 16, the first and second horizontal guide sections 1
9 and 33 are moved upward, and the feed bar 11 is also moved upward, thereby making it possible to move the workpiece 13 held by the holder 12 upward. As the workpiece 13 is moved upward, the prime mover 40 is rotated, and the rotational force of the prime mover 40 is transmitted to the driven shaft 37 via the drive wheel 43 → intermediate wheel 49 → driven wheel 36. As a result, the pinion 35 provided on the driven shaft 37 is rotated, and the feed bar 11 is moved laterally in the feeding direction of the processing line D. The horizontal movement of the feed bar 11 is A,
The process between B and BC is performed in one pitch. For example, when the workpiece 13 held at point A reaches above point B, the prime mover 40 stops and the feed bar 11
The horizontal movement of is completed. Next, the feed bar 11 is moved downward, so that the workpiece 13 held by the holding body 12 is released from its holding at the position of point B. As a result, the workpiece 13A is transported from point A to point B and from point B to point C while drawing a locus shown by a two-dot chain line H in FIG. The holder 12 that has conveyed the workpiece 13 and released the workpiece 13 is moved again along the trajectory H in the opposite direction to the feed direction by the reverse rotation of the prime mover 40, and is processed again in each step of A, B, and C. Object 13 is to be held. By repeatedly performing the above operations, the two-dimensional transfer device 10
The workpieces 13 can be sequentially moved in the feeding direction.

According to the above embodiment, the lateral driving force of the prime mover 40 can be transmitted to the rack 34 of the feed bar 11 while the prime mover 40 remains fixed to the frame 14, so that the driving force of the entire device can be reduced. This makes it possible to reduce the size of the entire device. Further, the inertia based on the mass of the prime mover 40 when the feed bar 11 moves up and down can be reduced, and the speed of up and down movement can be further increased. Furthermore, since the prime mover 40 remains fixed to the frame 14, the risk of wire breakage is eliminated.

In the present invention, the rack 34 may be replaced by another feed mechanism such as a chain, and the pinion 35 may be replaced by another feed wheel such as a sprocket.

[Effects of the Invention] As described above, the present invention includes a frame, a vertical slide part supported to be vertically movable with respect to the frame, and a vertical drive part fixed to the frame and capable of moving the vertical slide part up and down. , a first horizontal guide section disposed on the vertical sliding section, a drive lever that is swingably supported by the frame and connectably coupled to the vertical sliding section, and a drive lever that is swingably supported by the frame. a driven lever, a connecting rod that connects the driving lever and the driven lever and forms a parallel link together with the frame, the driving lever, and the driven lever; and a second horizontal guide portion disposed on the driven lever;
A feed bar that is held by the first lateral guide part and the second lateral guide part and has a feeding mechanism part extending in the feeding direction, a lateral drive part supported by the frame, and a vertical slide part that moves up and down integrally. At the same time, a driven shaft includes a feed wheel rotatably supported by the vertical slide portion and transmits a feeding force to the feed mechanism portion of the feed bar, and a driven wheel, and a driven shaft rotatably disposed around the driven shaft. a drive shaft comprising a drive wheel supported by a frame and driven by a lateral drive section; a second lever disposed to be swingable around the drive shaft; and an end of the first lever. The two-dimensional transfer device has an intermediate shaft that is coupled to the end of the first lever and the second lever, and has an intermediate wheel that can be interlocked with each of the driving wheel and the driven wheel. This has the effect that the feed bar can be moved vertically and laterally while both the section and the lateral drive section are fixedly arranged on the frame.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a two-dimensional transfer device according to an embodiment of the present invention, and FIG.
FIG. 3 is an enlarged sectional view taken along the line, and FIG. 3 is a perspective view showing the main part of FIG. 2. DESCRIPTION OF SYMBOLS 10... Two-dimensional transfer device, 11... Feed bar, 14... Frame, 16... Vertical slide part, 17... Actuator, 19... First horizontal guide part, 20... Drive lever, 24, 31... Followed lever, 27... Connection rod , 28...parallel link, 33
...Second horizontal guide part, 34...Rack, 35...Pinion, 36...Driver wheel, 37...Driver shaft, 39...First lever, 40...Prime mover, 41...Drive shaft, 43...Drive wheel, 45...Second lever , 48... intermediate shaft, 49... intermediate wheel.

Claims (1)

[Claims] 1. A frame, a vertical slide section that is supported to be movable up and down relative to the frame, a vertical drive section that is fixed to the frame and allows the vertical slide section to move up and down, and a first horizontal section that is disposed on the vertical slide section. A guide part, a drive lever that is swingably supported by the frame and operatively coupled to the vertical slide part, a driven lever that is swingably supported by the frame, and the drive lever and the driven lever are connected. , a connecting rod forming a parallel link together with the frame, the drive lever, and the driven lever; a second lateral guide portion disposed on the driven lever; a first lateral guide portion and a second lateral guide portion;
The feed bar is held by the horizontal guide part and has a feed mechanism part extending in the feeding direction, the horizontal drive part supported by the frame, moves up and down together with the vertical slide part, and rotates by the vertical slide part. a driven shaft including a feed wheel and a driven wheel, which are supported by a frame, and which are supported by a frame and include a driven wheel; , a drive shaft comprising a drive wheel driven by a lateral drive section, a second lever disposed to be swingable around the drive shaft, an end of the first lever and an end of the second lever. 1. A two-dimensional transfer device comprising: an intermediate shaft having an intermediate wheel connected to a drive wheel and a driven wheel and capable of interlocking with each of a driving wheel and a driven wheel.