JPH035399Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Field of industrial application]
In particular, it relates to a device for easily performing feeding and positioning operations on a machine tool.
The present invention relates to a workpiece loading and unloading device that allows a workpiece to be loaded and unloaded easily by one operation of one cylinder.

[Conventional technology]

Conventionally, in devices for supplying workpieces to machine tools, as shown in FIG. 3, a plurality of cylinder devices 1a to 1c are used.
These actuators are used as a carry-in actuator 1a, a carry-out actuator 1b, and a vertical actuator 1c, respectively, and the actuators are operated in combination in the moving direction of the workpiece to perform a predetermined operation. We are making it possible to do this.

In addition, although FIG. 3 shows a very simplified state, in reality, their configuration is a relatively complex combination.
By operating these actuators in a predetermined combination, the workpiece 31 can be moved to an arbitrary position or set at a processing position.

[Problem that the invention attempts to solve]

However, in the conventional device as described above, it is necessary to use multiple actuators, which makes the combination of mechanisms relatively complicated, and the mechanism for loading and unloading the workpiece is complicated. It gets very complicated.

In addition, since multiple actuators are used in combination, their maintainability and workability are not good.
Controlling the interlocking movements between each actuator becomes complicated, and the complicated mechanism for moving the workpiece also causes the machine tool to become larger.

The present invention solves the above-mentioned drawbacks of the conventional apparatus, and makes it possible to easily move the workpiece with one operation by one actuator, and also provides a mechanism for this purpose. The purpose is to provide a device that can be made simple.

[Means for solving problems]

The workpiece loading/unloading device of the present invention has two vertical links, both ends of which are slidably pivotally attached to the vertical links, and the same part between both ends is pivotally fixed to a fixed shaft. two parallel swing links, one end of which is fixed to one of the swing links, and one end of which is swingably pivoted to the fixed shaft, and a rod attached to the other end of the link. an actuator having a tip pivotally attached to the vertical link; the upper surface of each of the vertical links has an inclined surface that slopes downward toward the middle of the two vertical links, and each of the inclined surfaces has a covered surface. Connected to a carry-out chute and a carry-in chute of the workpiece, the sloped surface of the link rises above the carry-out chute when the workpiece is carried in, and the slope falls below the carry-out chute when carried out. .

One side of the parallel swing links like this,
By swinging with an actuator,
The vertical link is moved up and down in a seesaw manner, and the up and down movement allows the workpiece to be accepted;
One actuator performs positioning and unloading operations.
The configuration is such that it can be easily performed through operation.

Therefore, in the device of the present invention, the overall configuration can be simplified, making it possible to significantly reduce device maintenance and manufacturing costs.

〔Example〕

The structure of the work loading/unloading device of the present invention will be explained using the illustrated example. As shown in FIG. 1, the device of the present invention is composed of a pair of vertical links. This link is link 20
and a link 25, and the link 20 is
A slope 21 is formed at the upper end, and a convex portion 22 is further provided at the end. The slope 21 has a downward slope toward the middle of the links 20 and 25.

The other vertical link 25 has an upper surface 26 configured as a slope 27 that continuously slopes in the same direction as the slope of the carry-in chute 30, and also stops the workpiece 31. A member (not shown) for this purpose is provided at the processing position 33. The slope 27 has a downward slope toward the middle of the links 20 and 25.

The vertical links 20 and 25 of the present invention described above are supported by parallel links 10 and 15, respectively. Among these links, the lower swing link 10 has its center fixed to the link 5 and is designed to swing via a shaft 6. Furthermore, a shaft 11, a shaft 11,
12, a link 20 and a link 25 are swingably provided.

Further, the upper link 15 is supported by a shaft 16 at the same position as the shaft 6, that is, at the same ratio from both ends. , a link 20 and a link 25 are pivotally connected so as to be swingable.

And the above-mentioned four links 10 of the present invention,
15, 20, 25 are two opposing links,
They are arranged parallel to each other, forming a quadrilateral link.

In the actuator 1 of the present invention, the engaging member 3 at the tip of the rod 2 is locked in the elongated hole 7 of the link 5, and the link 5 is swung as the actuator 1 expands and contracts. In addition,
This operation causes the lower swing link 10 to swing about the shaft 6.

Due to the swinging operation of the lower swinging link 10,
The links 20 and 25 of the present invention move up and down in a seesaw manner, respectively.
During this operation, the lower swing link 10 and the upper swing link 15 forming parallel links allow the vertical link to move up and down while maintaining its parallel state.

Therefore, when the rod 2 of the actuator 1 is extended, the links 20 and 25 are moved to the farthest apart state as shown in FIG. 2, and the lower swing connecting them is moved. The swing link 10 and the upper swing link 15 are in a substantially horizontal state.

When the workpiece is being carried in as shown in FIG.
The workpiece 31 is guided and rolls or slides along the slope. Further, at the time of carrying in, a carrying out chute 34, which will be described later, is located below the slope 27 of the link 25. Then, the workpiece is fixedly supported by a holding device (not shown), and predetermined machining is performed at a processing position 33.

Further, when the predetermined processing on the workpiece 31 is completed, the actuator 1 is operated and the link 2
0 and link 25 are in the state shown in FIG. , and the workpiece 31
will be moved to the next processing or loading position. In FIG. 1, a carry-out chute 34 is arranged connected to the upper end slope 21 of the link 20, and at the time of carrying out, the workpiece moves to this carry-out chute and rolls or slides thereon. Moreover, the carrying out chute 34 is located above the slope 27 at the time of carrying out (FIG. 1).

In this way, the device of the present invention has two vertical links 2
0,25 performs a seesaw-like movement. In order to make the processing equipment more compact, the front loading and unloading of the workpiece is achieved by the operation of the actuator 1, and the loading link 25 serves as a guide for loading the workpiece 31, and the unloading link 25 serves as a guide for loading the workpiece 31. It must be moved under the carry-out chute 34, which serves as a carry-out guide, so as not to interfere with carrying out the goods.
Further, the link 20 also performs a see-saw-like movement to ensure that the processed workpiece 31 is transported to the front, and performs the work of moving the workpiece to the front.

[Effect of idea]

Since the work loading/unloading device of the present invention has the above-described configuration, it is possible to perform the operation reliably by using one actuator. Furthermore, in the device of the present invention, the configuration is extremely simple because the perpendicular links are connected by parallel links.

Furthermore, the work loading/unloading device of the present invention can simplify the structure of the interlocking device compared to conventionally used drive mechanisms, and the vertical movement of the two vertical links can be performed accurately. It will be carried out in

In addition, since the device of the present invention does not require complicated control operations, it does not require any special control mechanism, and can be configured as the simplest device to operate as a single-function device. making it possible to do so.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the structure of the work loading/unloading device of the present invention, Fig. 2 is an explanatory view showing the state when the actuator rod is extended, and Fig. 3 is an explanatory view showing the state when the actuator rod is extended.
The figure is an explanatory diagram showing the configuration of a conventional device. Symbols in the figure: 1...actuator, 2...rod, 3...engaging member, 5...link, 6...
Shaft, 7...Long hole, 10...Lower swing link, 11,
12... Support shaft, 15... Upper swing link, 16...
Axis, 17, 18... Support shaft, 20... Link, 21
... Slope, 22 ... Protrusion, 25 ... Link, 26
... Upper part, 27 ... Slope, 30 ... Carrying chute, 31 ... Workpiece, 33 ... Processing position, 34
...Export shoot.

Claims (1)

[Scope of utility model registration request] Two perpendicular links 20 and 25, and mutually parallel links having both ends slidably pivotally connected to the vertical links and pivotally fixed to fixed shafts 6 and 16 at the same part in the middle of both ends, respectively. two swinging links 10, 15; a link 5 having one end fixed to one of the swinging links and pivoting the other end swingably to the fixed shaft; and the other end of the link 5. and an actuator 1 having a tip of a rod 2 pivotally attached to the rod 2; sloped surfaces 21 and 27 are provided on the upper surfaces of each of the vertical links 20 and 25 with a downward slope toward the middle of the two vertical links. The inclined surfaces 21 and 27 are connected to the carry-out chute 34 and the carry-in chute 30 of the workpiece 31, respectively, and when the workpiece 31 is carried in, the inclined surface 27 of the link 25
is elevated above the carry-out chute 34, and the inclined surface 27 is lowered below the carry-out chute 34 during carry-out.
Export device.