KR102281031B1 - Pick up device that can replace the pick up tool - Google Patents

Abstract

The present invention relates to a pickup device with a replaceable pickup tool. The pickup device with a replaceable pickup tool includes: a body; a moving body installed on one side of the body to be movable in X, Y and Z axes; a support body combined with one side of the moving body to be detachable, and having at least one installation hole formed therein to be penetrated on one side in a vertical direction; a pickup tool installed in the installation hole to be movable in a vertical direction, having upper and lower parts exposed to the outside of the support body, and having a hollow hole with a closed upper part; a vacuum unit connected to the hollow hole to provide a suction force; a cylinder unit installed in the upper part of the pickup tool on one side of the moving body, and leading the pickup tool to be moved downward by pressing the upper part of the pickup tool downward when a lower part is extended; and a return means interposed between the support body and the pickup tool to provide an elastic force upward to the pickup tool. According to the present invention, there can be an effect of enabling the replacement of the support body in which the pickup tool is installed, while leading the pickup tool to be stably moved up and down by the cylinder unit without the need for the replacement of the cylinder unit even when there is a change to the arrangement of the pickup tool.

Description

Pickup device that can replace the pick up tool {Pick up device that can replace the pick up tool}

The present invention relates to a pickup device capable of replacing a pickup tool, and more particularly, it is possible to replace a support body in which the pickup tool is installed, and even if the arrangement of the pickup tool is changed, the pickup tool can be moved up and down by the cylinder unit without replacing the cylinder unit. It relates to a pickup device capable of replacing a pickup tool capable of stably operating.

In general, there are spherical lenses and aspherical lenses as optical lenses constituting the optical system. Here, the spherical lenses have different focal positions at the center and the periphery, so spherical aberration that impairs image clarity occurs. By obscuring the obtained image or modifying the original image, the optical properties of the lens are deteriorated.

On the other hand, since the aspherical lens has excellent optical performance and image quality, it has the advantage of reducing the weight and cost of optical parts, and thus development of various production processes for manufacturing the aspherical surface is required.

As an example, looking at the conventional method of manufacturing an aspherical lens, a lower mold having a plurality of cavities formed on the upper surface and a molding jig having a number of cores corresponding to the plurality of cavities are prepared, and a core with glass powder is introduced into each cavity. is inserted into the cavity. Thereafter, the lower mold is heated to a set temperature in the press device to melt the glass powder into a gel state, the core is pressed downward to form an aspherical lens, and after cooling, it is taken out.

Recently, there is a growing demand for process automation to improve production efficiency and quality, and research and development for aspherical lens manufacturing process automation are continuously being conducted.

Here, in order to automate the manufacturing process of the aspherical lens, a pick-and-place device is required to take out the manufactured aspherical lens from the molding jig and accommodate it in a tray prepared in advance.

1 is a diagram schematically illustrating a conventional pick and place device.

As shown in Figure 1, the conventional pick-and-place device 100 includes a moving block 110 that is movably installed in the XYZ axis direction, and a body part that is movably installed on one side of the moving block 110 in the vertical direction ( 120) and a plurality of pickup tools 130 that are fixedly installed on the body 120 and a moving block 110 are installed on one side, and the lower ends are integrally connected to the plurality of pickup tools 130, respectively, to the pickup tool 130. It is composed of a cylinder unit 140 that provides a moving force in the vertical direction.

In this conventional pick-and-place device 100, the moving block 110 is moved to a position corresponding to the object to be picked up, and after the body 120 moves downward a predetermined distance, the pick-up tool 130 moves the cylinder again. The unit 140 moves downward to adsorb the object. In a state in which the object is adsorbed and held, the pick-up tool 130 and the body part 120 move upward, and the moving block 110 moves to an area to be moved, thereby transferring the object to a desired position.

At this time, the lower end of the cylinder unit 140 of the conventional pick and place device 100 is integrally coupled to the upper portion of each pick-up tool 130 to provide vertical power to the pick-up tool 130, and a plurality of pick-up tools ( 130) has a structure in which the body portion 120 is fixedly installed at a predetermined position on one side, that is, a structure in which a plurality of pickup tools 130 are installed in a predetermined arrangement.

However, as for the forming jig, the arrangement of the aspherical lenses disposed on the image surface varies depending on the size and shape of the aspherical lens to be manufactured. In the conventional pick and place device, a plurality of pickup tools 130 are fixedly installed in a fixed arrangement. When a molding jig having a completely different arrangement of aspherical lenses is introduced during operation, there is a problem in that it is difficult to respond to the changed arrangement of aspherical lenses.

That is, conventionally, a separate pick-and-place device having a pick-up tool 130 of a corresponding arrangement is required in order to take out the aspherical lens from a forming jig having a different arrangement of aspherical lenses. There was a problem that was difficult to implement.

Korea Patent Publication No. 2019-0072464 'Pick-up unit'

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a pickup tool by a cylinder unit without replacing the cylinder unit even if the arrangement of the pickup tool is changed while the support body on which the pickup tool is installed can be replaced. An object of the present invention is to provide a pickup device capable of replacing a pickup tool capable of stably moving vertically.

According to one aspect of the present invention for achieving the above object, a main body, a moving body installed movably in the X, Y, and Z axes on one side of the main body, and detachably coupled to one side of the moving body a support body having at least one installation hole penetrating in the vertical direction on one side, and a hollow pickup tool installed movably in the vertical direction in the installation hole, the upper and lower ends being exposed to the outside of the support body, and the upper end being shielded and a vacuum unit connected to the hollow to provide suction, and installed on the upper part of the pick-up tool on one side of the movable body, and when the lower end is extended, press the upper part of the pick-up tool downward to move the pick-up tool downward and a return means interposed between the cylinder unit and the support body and the pick-up tool to provide an upward elastic force to the pick-up tool, wherein the lower end of the cylinder unit includes one pick-up tool or one pick-up tool or There is provided a pickup device capable of replacing a pickup tool, characterized in that it is formed to have a diameter capable of pressing two adjacent pickup tools.

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In addition, the support body may be formed with a vacuum holding groove having a length in the vertical direction on one side of the inner surface corresponding to one side of the installation hole to which the vacuum unit is connected.

In addition, the vacuum holding groove is preferably formed to have a length corresponding to the vertical movement distance of the pickup tool.

According to the present invention as described above, while it is possible to replace the support body on which the pickup tool is installed, even if the arrangement of the pickup tool is changed, the vertical movement of the pickup tool by the cylinder unit can be stably performed without replacing the cylinder unit. .

1 is a schematic view of a conventional pick and place device;
2 is a perspective view of a pickup device capable of replacing a pickup tool according to an embodiment of the present invention;
3 is an exploded perspective view of a pickup device capable of replacing a pickup tool according to an embodiment of the present invention;
4 is a cross-sectional view taken along line AA shown in FIG. 2;
5 is a view showing a state in which the support body is moved downward according to an embodiment of the present invention;
6 is a view showing a state in which the pickup tool moves downward according to an embodiment of the present invention;
7 is a view showing a state in which a pick-up tool according to an embodiment of the present invention holds an object by suction;
8A and 8B are views each showing a state in which a cylinder rod presses a support body having a different arrangement of pick-up tools in an embodiment of the present invention;

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of a pickup device capable of replacing a pickup tool according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of a pickup device capable of replacing a pickup tool according to an embodiment of the present invention, and FIG. 4 is FIG. It is a cross-sectional view along line AA shown in Fig.

As shown in FIGS. 2 to 4 , the pickup device 1 capable of replacing a pickup tool according to an embodiment of the present invention includes a main body 10 , a movable body 20 , a support body 30 , and a vacuum unit. And, it is configured to include a pick-up tool (40), a cylinder unit (50) and a return means (60).

The main body 10 is installed on one side of a discharge path through which a molding jig is discharged to the outside of the aspherical automated manufacturing apparatus, and provides installation areas of each configuration to be described later.

The movable body 20 is formed in a substantially block shape, is installed movably in the X, Y, and Z axis directions on one side of the upper surface of the body 10, and is accompanied by a support body 30 and a pickup tool 40 to be described later. As a function to be moved, the position corresponding to the forming jig and the position corresponding to the tray for temporarily accommodating the aspherical lens are moved.

The support body 30 is formed in a substantially rectangular block shape, a plurality of installation holes 31 are formed in a direction perpendicular to the inside, and a vacuum holding having a length in the vertical direction on one side of the inner surface where the installation holes 31 are formed. A groove 32 is formed.

This support body 30 provides an installation space for the pickup tool 40 through the installation hole 31 and serves to support it, where the vacuum holding groove 32 moves vertically of the pickup tool 40 . It is formed with a length corresponding to the distance and is formed at a position corresponding to the communication hole 42 of the pickup tool 40 to be described later, so that the communication state with the communication hole 42 is maintained even if the pickup tool 40 moves vertically. By allowing the pick-up tool 40 to move in the vertical direction, it serves to ensure that the vacuum state in the hollow 41 can be stably maintained.

In addition, the support body 30 is detachably coupled to one side of the movable body 20, which is to remove the support body 30 in use from the movable block when using a molding jig having a different arrangement of aspherical lenses, This is so that it can be easily replaced with another support body 30 .

That is, the user can easily replace the support body 30 with the pickup tool 40 having an arrangement corresponding thereto according to the changed arrangement of the aspherical lens of the forming jig.

The pick-up tool 40 is formed in the shape of a hollow 41 having a substantially circular cross section, and the upper end is shielded. And, the communication hole 42 is formed on one side of the outer surface corresponding to the hollow 41 and the vacuum holding groove (32). Accordingly, when the vacuum unit is driven, the vacuum unit discharges the air in the hollow 41 to the outside through the communication hole 42 communicating with the vacuum holding groove 32 to maintain the hollow 41 in a vacuum state.

The cylinder unit 50 includes a cylinder body 51 and 10 installed on the upper pick-up tool 40 of one side of the movable body 20, and a cylinder rod 52 that expands and contracts from the cylinder body 51 and 10. It may be configured to include, and a plurality of are respectively installed at positions corresponding to the respective pickup tools 40 .

In addition, the cylinder rod 52 serves to provide downward movement force to the pickup tool 40 by pressing downward of the pickup tool 40 when it is extended.

Furthermore, the cylinder rod 52 according to this embodiment is formed to have a diameter capable of pressing one pickup tool 40 or two pickup tools 40 adjacent to each other according to the pickup tool 40 arrangement, This means that when the support body 30 in use is replaced with the support body 30 having the pickup tool 40 of a different arrangement, the pickup tool 40 of a different arrangement is pressed downward even if the cylinder unit 50 is not replaced. in order to be able to The operation of the cylinder unit 50 will be described in more detail with reference to FIGS. 8A and 8B below.

The return means 60 is interposed between the first elastic member 61 interposed between the upper surface of the support body 30 and the upper end of the pick-up tool 40 and the lower surface of the support body 30 and the lower end of the pick-up tool 40 The second elastic member 62 may be included, and when the pressing force of the cylinder unit 50 applied to the pickup tool 40 is released, an elastic force is provided upward to the pickup tool 40 to return upward. plays a role

The return means 60 may be a general coil spring.

5 is a view showing a state in which the support body is moved downward according to an embodiment of the present invention, and FIG. 6 is a view showing a state in which the pickup tool according to an embodiment of the present invention is moved downward. 7 is a view showing a state in which the pick-up tool suction-holds an object according to an embodiment of the present invention, and FIGS. 8A and 8B are a cylinder rod with a support body having a different arrangement of the pick-up tool in an embodiment of the present invention. It is a figure showing the state in which pressurized, respectively.

The operation of the pickup device 1 capable of replacing the pickup tool according to an embodiment of the present invention having such a configuration will be described with reference to the accompanying FIGS. 5 to 7 as follows.

First, in order to take out the aspherical lens L from the forming jig (Z), the moving body 20 moves to a position corresponding to the forming jig (Z).

When the pick-up tool 40 is disposed to correspond to the forming jig Z, the support body 30 moves downward a certain distance, and then the cylinder rod 52 of the cylinder unit 50 extends to the pick-up tool 40 . press the upper part of the Accordingly, the pickup tool 40 moves downward, and the lower end is located above the aspherical lens L accommodated in the forming jig Z.

At this time, the vacuum unit is driven so that the air in the hollow 41 of the pickup tool 40 is discharged to the outside through the communication hole 42 and the vacuum holding groove 32, and the pickup tool 40 is picked up while the inside of the pickup tool 40 is vacuum formed. The aspherical lens L is suction-held at the lower end of the tool 40 .

Thereafter, the support body 30 moves upward, and as the pressing force of the cylinder rod 52 is released, the pickup tool 40 is also moved upward by the elastic force of the return means 60 , the pickup tool 40 moving process Since the communication hole 42 moves in the vacuum holding groove 32 in the vacuum state of the hollow 41 is stably maintained.

After the pickup tool 40 moves to a position corresponding to the tray provided in advance while the pickup tool 40 holds the aspherical lens, the pickup tool 40 moves downward, and the vacuum unit stops driving to the corresponding position. The aspherical lens (L) is seated on the

On the other hand, when the arrangement of the aspherical lens (L) is changed, the support body (30) in use is removed, and the pickup tool (40) having an arrangement corresponding to the arrangement of the changed aspherical lens (L) is installed in the support body (30) will be replaced with

That is, as shown in FIG. 8A , before replacing the support body 30 , each pickup tool 40 and the cylinder unit 50 correspond 1:1, so that the cylinder unit 50 is lowered to each pickup tool 40 . In the case where the support body 30 is replaced while providing a moving force as shown in FIG. 8b , one cylinder unit 50 presses one pickup tool 40 or two adjacent pickup tools 40 , as shown in FIG. 8B . Thus, it is possible to provide a downward movement force to the plurality of pickup tools (40).

As described above, in the pickup device 1 capable of replacing the pickup tool according to an embodiment of the present invention, the pickup tool 40 corresponding thereto is installed according to the changed arrangement of the aspherical lens L when the molding jig Z is changed. Since the support body 30 can be easily replaced, it has a feature that can respond to the arrangement of various aspherical lenses L without replacing the molding jig Z with a separate pick-and-place device.

Although the present invention has been described with reference to the above-mentioned preferred embodiments, various modifications and variations are possible without departing from the spirit and scope of the invention. Accordingly, the appended claims are intended to cover such modifications and variations as fall within the scope of the present invention.

10: body 20: mobile body
30: support body 31: installer
32: vacuum holding groove 40: pickup tool
41: hollow 42: communication hole
50: cylinder unit 51: cylinder body
52: cylinder rod 60: return means
61: first elastic member 62: second elastic member

Claims (4)

a body;
a movable body installed movably in the X, Y, and Z axes on one side of the body;
a support body detachably coupled to one side of the movable body and having at least one installation hole penetrating through one side in the vertical direction;
a hollow pickup tool installed movably in the vertical direction in the installation hole, the upper and lower ends being exposed to the outside of the support body, and the upper end being shielded;
a vacuum unit connected to the hollow to provide suction;
a cylinder unit installed on one side of the movable body on the pick-up tool and configured to press the upper part of the pick-up tool downward to move the pick-up tool downward when the lower end is extended; and
a return means interposed between the support body and the pick-up tool to provide an upward elastic force to the pick-up tool;
The pickup tool replaceable pickup device, characterized in that the lower end of the cylinder unit is formed to have a diameter capable of pressing one pickup tool or two pickup tools adjacent to each other according to the pickup tool arrangement.
delete According to claim 1,
The pickup tool replaceable pickup device, characterized in that the support body has a vacuum holding groove having a length in the vertical direction on one side of the inner surface corresponding to one side of the installation hole to which the vacuum unit is connected.
4. The method of claim 3,
The pickup tool replaceable pickup device, characterized in that the vacuum holding groove is formed to have a length corresponding to the vertical movement distance of the pickup tool.

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