KR101518180B1 - An apparatus for air pressure comtrol of worktable having suction device - Google Patents

An apparatus for air pressure comtrol of worktable having suction device Download PDF

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Publication number
KR101518180B1
KR101518180B1 KR1020140142671A KR20140142671A KR101518180B1 KR 101518180 B1 KR101518180 B1 KR 101518180B1 KR 1020140142671 A KR1020140142671 A KR 1020140142671A KR 20140142671 A KR20140142671 A KR 20140142671A KR 101518180 B1 KR101518180 B1 KR 101518180B1
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South Korea
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module
air
vacuum
inlet
hole
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KR1020140142671A
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Korean (ko)
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최병근
영 진 이
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최병근
영 진 이
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0461—Welding tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/088—Work-clamping means other than mechanically-actuated using vacuum means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/005—Vacuum work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
    • B23B2270/62—Use of suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2703/00—Work clamping
    • B23Q2703/02—Work clamping means
    • B23Q2703/04—Work clamping means using fluid means or a vacuum

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manipulator (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

An air distribution module (10) comprising a high pressure air inlet (14) and a pair of first and second high pressure air outlets (16, 18); A first air solenoid valve module (20) having a first inlet hole (22), a first outlet hole (23), and first and second pots (24, 26); A second air solenoid valve module 30 having a second inlet hole 32 and a second outlet hole 33, and a third and fourth pots 34 and 36; A vacuum forming module 40 having an air inlet 42 provided at one end, an air outlet 46 provided at the other end, and an air inlet 44 at an upper portion thereof; A vacuum release module 50; An exhaust port 61 provided at one end portion thereof, an intake port 63 provided adjacent to the exhaust port 61, an intake and exhaust port 65 provided at the other end portion thereof, and a first check valve 62, A unit manifold module 60 composed of an exhaust pipe 64 provided in the first check valve 66 and an intake pipe 68 provided in the lower portion with the second check valve 66; A lower end portion of which is connected to the intake and exhaust port 65 of the unit manifold 60, a suction pad 74 provided on the upper end of the support rod 72, a first inlet and outlet hole 77, A vacuum adsorption module 70 having a second inflow and evacuation hole 79 formed at one side thereof and provided at a lower portion of the support rod 72 with a predetermined spacing therebetween; And a control module (80) for controlling the first and second air solenoid modules (20, 30), the vacuum forming module (40), and the vacuum dissolving module (50) .

Figure R1020140142671

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pneumatic pressure control apparatus for a vacuum suction table,

The present invention relates to a pneumatic control device for a vacuum adsorption workbench capable of fixing a workpiece requiring surface treatment using high-pressure air, and more particularly, The vacuum pneumatic control device of the vacuum adsorption workbench which can quickly perform the repair or replacement work by constituting the manifold which is involved in the operation of the vacuum adsorption module as a unit, .

In order to carry out the surface treatment of the workpiece such as sanding or paint, or to perform welding on a specific part of the workpiece, a device for firmly fixing the workpiece is required. For this purpose, It is a vacuum adsorption workbench equipped with many mechanisms. Generally, a vacuum adsorption workbench is provided with an adsorption pad at a site where a workpiece is placed, and the air in a space between the adsorption pad and the workpiece is forcedly exhausted by using a pump, thereby firmly fixing the workpiece to provide a stable work environment .

At this time, the surface of the workpiece adhering to the adsorption pad may be entirely flat, but in many cases, the workpiece has a constant curvature or a concave groove or protrusion partially formed on the surface thereof in many cases. Many vacuum workbenches have been proposed which can be easily applied even when the external shape of the workpiece has a certain curvature or when a specific portion of the surface of the workpiece is stepped up, and Korean Patent No. 0986597, No. 0855324 are examples of such techniques.

However, in the former case, when the worker is not an experienced worker or if the surface of the workpiece has a complicated shape, it is difficult to control the vertical height accurately and the workpiece can not be tightly restrained. In the latter case, The contact area of the rod is inclined and the frictional force generated at the area is used. Therefore, when the fixing operation is repeated, the contact area is worn out and the frictional force is gradually reduced. Thus, the industrial field to which this technology can be applied is very limited .

To this end, the present applicant has proposed Korean Patent No. 1311012 as disclosed in FIG. In this technique, a plurality of vacuum adsorption mechanisms are arranged on a workbench so that the vacuum adsorption mechanisms are individually supported according to the shape of the workpiece. When the vertical positions of the respective vacuum adsorption mechanisms are determined according to the shape of the workpiece, And each vacuum adsorption mechanism is constituted by an operating configuration for restraining the workpiece.

That is, the weight of the workpiece placed on the adsorption pad of each vacuum adsorption mechanism is primarily supported by the elastic body so that the workpiece having a certain curvature or shape is guided to maintain a stable horizontal posture, and a pressure plate So that it is possible to easily fix the workpiece having a considerable weight as well as the shape of the workpiece is very complicated.

In spite of these excellent advantages, however, this technology basically requires that each vacuum suction apparatus must continuously operate a high-pressure pump in order to fix the workpiece. Therefore, a long working time consumes a considerable amount of electric power, There was a problem that the working environment was deteriorated due to the noise generated due to the continuous operation.

Korean Patent No. 1311012

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional art, and it is an object of the present invention to provide a work machine having a complicated shape or easy to fix a work having a considerable load, Which is capable of preventing the adverse effect of the working environment caused by the operation of the vacuum adsorption workbench.

A high pressure air inlet 14 for introducing high pressure air and a pair of first and second high pressure air outlets 16 for communicating with the high pressure air inlet 14 and discharging high pressure air, , An air distribution module (10) provided with an air outlet (18); A first inlet hole 22 connected to the first high-pressure air outlet 16 of the air distribution module 10; first and second pots 24 and 26 communicating with the first inlet hole 22; A first air solenoid valve module 20 provided with a first exhaust hole 23 communicating with each of the first and second pods 24 and 26; A second inflow hole 32 connected to the second high-pressure air outlet 18 of the air distribution module 10, third and fourth pots 34 and 36 communicating with the second inflow hole 32, A second air solenoid valve module (30) provided with a second exhaust hole (33) communicating with each of the third and fourth pots (34, 36); An air inlet 42 connected at one end to the first porter 24 of the first air solenoid valve 20 and an air outlet 46 communicating with the air inlet 42 at the other end, A vacuum forming module 40 communicating with the air inlet 42 and the air outlet 46, respectively, and provided with an air inlet 44 at an upper portion thereof; A vacuum release module 50 once connected to the second porter 26 of the first air solenoid valve 20; An exhaust port 61 provided at one end of the vacuum forming module 40 and connected to the air inlet port 44 of the vacuum forming module 40 and an air inlet port 63 provided adjacent to the air outlet port 61 and connected to the other end of the vacuum release module 50 And a first check valve 62 which is provided at an upper portion and is provided at one end with an exhaust port 61 and a second check valve 62. The exhaust port 61 is provided at an upper end portion of the exhaust port 61. The exhaust port 61 is connected to the exhaust port 61, And an exhaust pipe 64 connected to the intake and exhaust device 65 and a second check valve 66. The other end of the exhaust pipe 64 is connected to the intake port 63 and the other end is connected to the intake / A unit manifold module 60 composed of an intake pipe 68 connected to the intake pipe 65; A support rod 72 which is vertically moved up and down by a load of the workpiece and whose lower end portion is connected to the intake and exhaust port 65 of the unit manifold 60 and a suction pad 74 A first inlet and outlet hole 77 which is provided at an inner space and is spaced apart from each other by a predetermined distance and connected to the third and fourth pots 34 and 36 of the second air solenoid valve module 30, A casing 760 provided with a second inflow and evacuation hole 79 and a cylinder 762 provided between the first inflow and evacuation hole 77 and the second inflow and evacuation hole 79 are provided in the inner space of the casing 760, And the other end portion of which is fixedly coupled to the cylinder 762 at the one end and the other end portion is extended through the front portion of the casing 760 and the pressing surface 767, A vacuum adsorption module 70 provided with a support siphon body composed of a pressure member 766 which is in close contact with the support rod 72 according to the present invention; And a control module 80 for controlling the first and second air solenoid modules 20 and 30, the vacuum forming module 40, and the vacuum dissolving module 50, respectively.

The unit manifold module 60 may be a plurality of unit manifold modules.

At this time, each of the first check valve 62 and the second check valve 66 operates in one direction and the other direction. In the vacuum release module 50, an internal flow path is provided in accordance with an input signal of the control device 80 A solenoid valve 52 may be provided.

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The present invention proposes a method of using as much air as necessary through a solenoid valve and a check valve in fixing a workpiece as a vacuum adsorption module using high-pressure air, thereby minimizing power consumption and operating the high-pressure pump Thereby preventing the working environment from being deteriorated due to noise.

In addition, the present invention is configured such that the manifold folder, which is involved in the operation of the vacuum adsorption module, is configured as a unit so that the repair or replacement work can be performed, thereby remarkably reducing the maintenance cost of the vacuum adsorption workbench, It allows you to minimize time.

1 is a schematic overall configuration diagram of a pneumatic control apparatus for a vacuum adsorption workbench according to the present invention.
FIG. 2A is a schematic block diagram of a vacuum adsorption module in a pneumatic control apparatus for a vacuum adsorption workbench according to the present invention. FIG.
FIG. 2B is a schematic operational configuration diagram of a vacuum adsorption module in a pneumatic control apparatus for a vacuum adsorption workbench according to the present invention. FIG.
FIG. 2C is a schematic operational configuration diagram of a casing and a cylinder in the vacuum adsorption module according to the present invention. FIG.
FIG. 2d is a schematic view of the pressure body in the vacuum adsorption module according to the present invention. FIG.
Figures 3a-3d each schematically illustrate the operation of the present invention.
4 is a schematic structural view of a conventional vacuum adsorption workbench.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the technical features of the present invention, A detailed description thereof will be omitted.

1 is a schematic overall configuration diagram of a pneumatic control device of a vacuum adsorption bench according to the present invention. As shown in the drawings, the present invention includes an air distribution module 10, first and second air solenoid valve modules 20 and 30, A vacuum forming module 40, a vacuum dissolving module 50, a unit manifold module 60, a vacuum adsorption module 70, and a control module 80.

The air distribution module 10 is a means for distributing the inflowing high-pressure air (hereinafter air). The air distribution module 10 is provided with a high pressure air inlet 14 into which air flows and a pair of first and second high pressure air outlets 16 and 18 through which air is discharged. Each of the first and second high-pressure air outlets communicates with the high-pressure air inflow port 14 by an internal flow path of an air distribution module (not shown). High pressure air is supplied by a high pressure pump not shown.

The first air solenoid valve 20 is a means for controlling the movement of air in accordance with the input signal of the control module 80 and includes a first inlet hole 22 and a first outlet hole 23, 24, and 26 are provided. The first inlet hole 22 is connected to the first high pressure air outlet 16 of the air distribution module 10 and each of the first and second pods 24 and 26 is connected to a first inlet hole (22), and the first exhaust hole (23) communicates with each of the first and second poders (24, 26). The first porter 24 is connected to the vacuum forming module 40 and the second porter 26 is connected to the vacuum dissolving module 50.

Reference numeral 28 denotes a valve actuating part which, when a signal is inputted from the control module 80, connects the first porter 24 and the first inflow hole 22 by moving the opening / closing pin (not shown) (The second porter 26 and the first discharge hole 23 are connected to each other) or the second porter 26 and the first inflow hole 22 are connected to each other (the first porter 24 and the first discharge hole 23 ) This connection). Accordingly, the first air solenoid module 20 is connected to either the vacuum forming module 40 or the vacuum dissolving module 50. The operational configuration of such a solenoid valve is well known in the related art, and a detailed description thereof will be omitted.

The second air solenoid valve 30 is provided with a second inflow hole 32 and a second discharge hole 33 and third and fourth pots 34 and 36 similar to the first air solenoid module 20 And controls the movement of the air according to the attraction signal of the control module 80. The second inlet hole 32 is connected to the second high pressure air outlet 18 of the air distribution module 10 and each of the third and fourth pots 34 and 36 is connected to the second inlet hole And the second exhaust hole 33 communicates with the third and fourth pots 34 and 36, respectively.

Each of the third and fourth pots 34 and 36 is connected to each of the first inlet and outlet hole 77 and the second inlet and outlet hole 79 of the vacuum adsorption mechanism 70. Reference numeral 38 is a valve operating portion, and its operating configuration is the same as the valve operating portion of the first solenoid valve module. That is, when a signal is inputted from the control module 80, the opening / closing pin (not shown) is moved in the lateral direction so as to connect the third porters 32 and the second inlet holes 32 The third porter 34 and the second discharge hole 33 are connected to each other), or the fourth porter 36 and the second inflow hole 32 are connected to each other.

The vacuum forming module 40 is a means for releasing the air remaining in the space between the workpiece and the adsorption pad 74 of the vacuum adsorption mechanism 70 to tightly confine the workpiece with the adsorption pad. The vacuum forming module 40 is provided with an air inlet 42, an air outlet 46, and an air inlet 44.

The air inlet 42 is provided at one end of the vacuum forming module 40 and is connected to the first porter 24 of the first air solenoid valve 20. The air outlet 46 is provided at the other end of the vacuum forming module 40 and communicates with the air inlet 42. The air intake port 44 is provided in the upper portion of the vacuum forming module 40 and communicates with the air inlet 42 and the air outlet 46, respectively.

A nozzle may be provided at a portion where the air inlet 42, the air outlet 46, and the air inlet 44 communicate with each other. When the nozzle is provided, the air entering through the air inlet 42 according to the Bernoulli theorem passes through the nozzle portion, the pressure is reduced (the speed is increased) and the air is exhausted to the outside through the air outlet 46, As the pressure is reduced, the air remaining in the space between the adsorption pad 74 and the workpiece is interlocked with the air to escape to the air outlet 46.

The vacuum elimination module 50 is a means for eliminating the vacuum state formed between the adsorption pad 74 and the workpiece. One end of the vacuum elimination module 50 is connected to the second porter 26 of the first air solenoid valve 20. A solenoid valve 52 is provided in the vacuum elimination module 50 and the solenoid valve 52 opens or closes the internal flow path in the other direction in accordance with an input signal of the controller 80. Here, the other direction refers to the direction in which the air moves toward the vacuum adsorption mechanism 70 as described in the drawings, and so on. Accordingly, the movement of the air through the vacuum release module 50 is limited only in a certain direction.

The unit manifold 60 is a means for guiding the movement of the air in a specific direction and forming or releasing a vacuum in the vacuum adsorption mechanism 70. One end of the unit manifold 61 is provided with an exhaust port 61 connected to the air intake port 44 of the vacuum forming module 40 and an exhaust port 61 adjacent to the exhaust port 61 is provided at the other end of the vacuum elimination module 50 And an intake port 63 connected to the intake port 63 is provided.

The intake manifold 65 is provided at the other end of the unit manifold 60 and the exhaust pipe 64 and the intake pipe 68 are provided at the upper and lower portions thereof. The exhaust pipe 64 is provided with a first check valve 62 and the intake pipe 68 is provided with a second check valve 66. The first check valve 62 operates in one direction (the direction in which the air moves from the vacuum adsorption module 70 toward the vacuum forming module 40, (66), on the other hand, operate in the other direction.

One end portion and the other end portion of the exhaust pipe 64 communicate with the exhaust port 61 and the intake and exhaust port 65 respectively by an internal flow path (not shown) (Not shown) communicates with the intake port 63 and the intake and exhaust port 65, respectively. That is, the intake and exhaust pipes 68 and 64 are connected to the intake port 63 and the exhaust port 61 through only the intake and exhaust port 65 and the exhaust port 61, respectively.

On the other hand, the present invention does not exclude the case where the unit manifold module 60 is composed of a plurality of units as described in the drawings. In general, the vacuum adsorption workbench is configured to fix workpieces using a plurality of vacuum adsorption mechanisms. In this case, a plurality of unit manifold modules 60 are provided to individually control the vacuum adsorption modules 70 May be preferred. This is because it is very easy to repair or replace and can minimize downtime.

In the meantime, the present invention does not exclude that the unit manifold module can control at least two or more vacuum adsorption modules, even if a plurality of unit manifold modules are provided. In this case, it is needless to say that each pair of check valves for controlling each vacuum adsorption module should be provided in the unit manifold module. Such a configuration may be effective when the number of vacuum adsorption modules mounted on the vacuum adsorption workbench is considerable.

The vacuum adsorption module 70 may comprise a support rod 72, a suction pad 74, and a support bead jig as shown in Fig. 2A as means for fixing the workpiece. The support rod 72 is hollow and has an air inlet end 71 on the lower end thereof and is connected to the intake and exhaust port 65 of the unit manifold 60. The adsorption pad 74 is provided on the upper end of the support rod 72 and is made of a soft material.

As shown in FIG. 2C, the holding and sealing member includes a casing 760, a cylinder 762, a working rod 764, and a pressing member 766. The casing 760 is provided with an internal space of a predetermined size and has a first inlet / outlet hole 77 and a second inlet / outlet hole 79 spaced apart from each other by a predetermined distance. Each of the first inlet and outlet holes 77 and 79 is connected to each of the third and fourth pots 34 and 36 of the second air solenoid module 30.

The cylinder 762 is provided in the inner space of the casing 760 and the edge portion is in close contact with the inner surface of the casing 760 and positioned between the first inlet and outlet holes 77 and 79. The inner space of the casing 760 is partitioned by the cylinder 762. Reference numeral 761 denotes an O-ring member. One end of the operating rod 764 is fixedly coupled to the cylinder 762, and the other end of the working rod 764 protrudes through the front portion of the casing 760. Reference numeral 764 denotes an O-ring member.

The pressing member 766 is fixedly coupled to the other end of the support rod 72 as a means for fixing the position of the lowered support rod closely contacted with the support rod 72. [ The pressing member 766 may be provided with a pressing surface 767 which is depressed corresponding to the shape of the supporting rod 72 and a plurality of unevenness 768 is formed on the pressing surface 767 . The unevenness 768 increases the frictional force when the pressing surface 766 is brought into close contact with the support rod 72, so that the support rod can be tightly fixed at an intended position.

Reference numerals 73 and 75 denote bellows and elastic means, reference numeral 76 denotes a support, and reference numeral 78 denotes a fastening means for fixing the support bead jam at a fixed interval to the support 76. The fastening means 78 can be made of conventional bolts.

The schematic operating configuration of the present invention having such a configuration will be described with reference to the above-described explanations, and FIGS. 3A to 3D and 2A to 2C, respectively. For convenience of explanation, the present invention is limited to a case where the present invention is applied to one vacuum adsorption module (one unit manifold).

When power is applied to the vacuum adsorption workbench, a high-pressure pump is operated. At the same time, according to an input signal of the controller 80, the first inlet hole 22 of the first air solenoid valve 20 and the second inlet hole 22 of the first air solenoid valve 20 The second inlet hole 32 of the second air solenoid valve 30 and the third potter 34 are connected to each other. At this time, the first porter 24 and the first exhaust hole 23 of the first air solenoid valve 20 and the fourth porter 36 and the second exhaust hole 33 of the second air solenoid valve 30 Are connected as shown by the dotted lines.

A part of the air flowing into the air distribution module 10 continuously flows into the first inlet / outlet hole 77 of the casing 760 through the second high-pressure air outlet 18 (the other direction). 2C, the air (solid line) introduced into the first inlet / outlet hole 77 pushes the cylinder 762 rearward (right side in the figure), so that the pressure member 766 is separated from the support rod 72 State. On the other hand, the air filled in the rear space of the cylinder 762 moves in the direction of the dotted line through the second inlet / outlet hole 79 and then flows into the fourth porter 36 of the second air solenoid valve 30 and the second outlet And the holes 33 are sequentially exhausted to the outside.

The other part of the air flowing into the air distribution module 10 flows into the vacuum elimination module 50 through the first high pressure air outlet 16. The solenoid valve 52 provided in the vacuum elimination module 50, When there is an input signal in the control device 80, opens in the other direction, so that the internal flow path is closed when no signal is inputted from the control device. That is, movement of the air in the other direction through the vacuum elimination module 50 is restricted.

In this state, the workpiece P is placed on the vacuum adsorption workbench as shown in FIG. 2B. When the workpiece P is laid, the support rod 72 moves downward by a certain distance due to the load. Although a single vacuum adsorption module is shown in the drawing, when a plurality of vacuum adsorption modules are provided, the support bars of the vacuum adsorption modules are moved downward by different distances according to the shape of the workpiece P Of course.

3B, the controller 80 applies a separate signal to the first air hole 22 and the first porter 24 of the first air solenoid valve 20, And the second inlet hole 32 of the second air solenoid valve 30 and the fourth porter 36 are connected. At this time, the second porter 26 and the first exhaust hole 23 of the first air solenoid valve 20 and the third porter 36 and the second exhaust hole 33 of the second air solenoid valve 30 Are connected as shown by the dotted lines.

In this case, a part of the air flowing into the air distribution module 10 continuously flows into the second inlet / outlet hole 79 of the casing 760 through the second high-pressure air outlet 18 (the other direction). 2C, the air (solid line) introduced into the second inlet / outlet hole 79 pushes the cylinder 762 forward (leftward in the figure), so that the pressurizing member 766 moves forward a certain distance, (72). That is, the support bar 72, which is moved downward by a certain distance due to the load of the workpiece P, is fixed at that position. The air filled in the front space of the cylinder 762 moves in the direction of the dotted line through the first inflow and evacuation hole 77 and then flows through the third porter 34 and the second discharge 34 of the second air solenoid valve 30, And the holes 33 are sequentially exhausted to the outside.

Another portion of the air entering the air distribution module 10 is introduced into the air inlet 42 of the vacuum forming module 40 through the first high pressure air outlet 16. The air introduced into the vacuum forming module 40 is exhausted to the outside through the air outlet 46 (solid line) by a nozzle (not shown) provided at a communicating portion between the air outlet 46 and the air inlet 44 Pressure drop occurs. The air existing between the adsorption pad 74 and the workpiece P escapes through the air inflow end 71 and flows through the inlet / outlet port 65 of the unit manifold module 60, the exhaust pipe 64, (61), and the air intake port (44) of the vacuum forming module (40). At this time, since the first check valve 62 of the exhaust pipe 64 operates in the same direction as the direction in which the air is exhausted, there is no restriction of air movement due to the first check valve.

The vacuum elimination module 50 is connected to the second porter 26 of the first air solenoid valve module 20 and the second porter 26 is connected to the first exhaust hole 23, Since the solenoid valve 52 of the vacuum release module 50 is closed, there is no air movement through the vacuum release module 50 as shown in FIG. 3B.

When the air remaining in the space between the adsorption pad 74 and the workpiece P is exhausted after a predetermined time has elapsed, the control device 80 is operated to start the operation of the first air solenoid valve module 20 1 connecting the inflow hole 22 and the second porter 26. Even if the first inlet hole 22 and the second potter 26 are connected to each other, no signal is applied to the vacuum elimination module 50, so there is no movement of the air through the vacuum elimination module 50.

At this time, the first porter 24 and the first exhaust hole 33 are connected to each other. In this case, the first check valve 62 of the exhaust pipe 64 operates in one direction, The external air does not flow into the adsorption pad 74 side. It is a matter of course that the degree of parallax reduction when switching from the state of FIG. 3B to the state of FIG. 3C can be preset in advance, which is well known in the related art, and a description thereof will be omitted.

The workpiece P is subjected to a surface treatment work when the workpiece P is tightly restrained by the adsorption pad 74 while the support rod 72 is fixed in place. As described above, according to the present invention, as a vacuum adsorption module, a method of injecting air for a predetermined period of time in fixing a workpiece is adopted, which can drastically reduce power waste generated by continuously injecting high-pressure air, It is possible to remarkably reduce the noise inconvenience caused by the operation of the compressor.

The first inlet hole 22 of the first air solenoid valve module 20 is connected to the second port 26 of the first air solenoid valve module 20 in accordance with the operation of the control device 80 And the second inlet hole 32 of the second air solenoid valve module 30 is connected to the third porter 34. At this time, the first porter 24 of the first air solenoid valve module 20 is connected to the first exhaust hole 23, and the fourth porter 36 of the second air solenoid valve module 30 is connected to the second exhaust And is connected to the ball 33.

When the first inlet hole 22 of the first air solenoid valve module 20 is connected to the second porter 26, a part of the air flowing into the air distribution module 10 is connected to the second high pressure air Through the discharge port 18 to the first inlet and outlet hole 77 of the casing 760 so that the cylinder 762 is pushed backward and the pressure member 766 is separated from the support rod 72. That is, the support rod 72 is no longer fixed and is in a free state. At the same time, the air filled in the rear space of the cylinder 762 is moved in the direction of the dotted line through the second inlet / outlet hole 79, and then the fourth porter 36 of the second air solenoid valve 30, 2 discharge holes 33 in order.

On the other hand, when the second inlet hole 32 of the second air solenoid valve module 30 is connected to the third potter 34, the solenoid valve 52 of the vacuum elimination module 50 is operated by the operation of the controller 80 The other part of the air introduced into the air distribution module 10 is introduced into the vacuum elimination module 50 through the first high pressure air outlet 16 and then the intake port 63, 68 and the intake and exhaust port 65 in this order to the adsorption pad 74 through the air inlet end 71. When air is introduced into the adsorption pad 74, the vacuum between the adsorption pad 74 and the workpiece P is released and the workpiece P naturally becomes detachable from the adsorption pad 74.

Since the second check valve 66 of the intake pipe 68 acts in the same direction as the air intake direction, the second check valve does not interfere with the movement of the air. Since the first porter 24 of the first air solenoid valve module 20 is connected to the first exhaust hole 23 but the first check valve 62 of the exhaust pipe 64 operates in one direction, The first check valve 62 restricts the movement thereof even if the outside air is introduced through the first discharge hole 23.

When the workpiece P is detached from the vacuum adsorption module, the control device 80 operates again to form the state shown in FIG. 3A and prepare for the next operation. That is, the first inlet hole 22 of the first air solenoid valve 20 is connected to the second porter 26, and the second inlet hole 32 of the second air solenoid valve 30 is connected to the third porter 26 34 and the first porter 24 and the first exhaust hole 23 of the first air solenoid valve 20 and the fourth porter 36 and the second exhaust hole 23 of the second air solenoid valve 30, (33) are connected as shown by the dotted lines. The subsequent operation is repeated by repeating the above-described state of FIG. 3B to FIG. 3D.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be apparent that the present invention can be practiced with added features.

10: air distribution module 20: first air solenoid valve module
30: second air solenoid valve module 40: vacuum forming module
50: vacuum release module 60: unit manifold module
70: vacuum adsorption module 80: control module

Claims (4)

A high pressure air inlet 14 into which high pressure air is introduced and an air distribution module 16 which is provided with a pair of first and second high pressure air outlets 16 and 18 communicating with the high pressure air inlet 14 and discharging high pressure air 10);
A first inlet hole 22 connected to the first high-pressure air outlet 16 of the air distribution module 10; first and second pots 24 and 26 communicating with the first inlet hole 22; A first air solenoid valve module 20 provided with a first exhaust hole 23 communicating with each of the first and second pods 24 and 26;
A second inflow hole 32 connected to the second high-pressure air outlet 18 of the air distribution module 10, third and fourth pots 34 and 36 communicating with the second inflow hole 32, A second air solenoid valve module (30) provided with a second exhaust hole (33) communicating with each of the third and fourth pots (34, 36);
An air inlet 42 connected at one end to the first porter 24 of the first air solenoid valve 20 and an air outlet 46 communicating with the air inlet 42 at the other end, A vacuum forming module 40 communicating with the air inlet 42 and the air outlet 46, respectively, and provided with an air inlet 44 at an upper portion thereof;
A vacuum release module 50 once connected to the second porter 26 of the first air solenoid valve 20;
An exhaust port 61 provided at one end of the vacuum forming module 40 and connected to the air inlet port 44 of the vacuum forming module 40 and an air inlet port 63 provided adjacent to the air outlet port 61 and connected to the other end of the vacuum release module 50 And a first check valve 62 which is provided at an upper portion and is provided at one end with an exhaust port 61 and a second check valve 62. The exhaust port 61 is provided at an upper end portion of the exhaust port 61. The exhaust port 61 is connected to the exhaust port 61, And an exhaust pipe 64 connected to the intake and exhaust device 65 and a second check valve 66. The other end of the exhaust pipe 64 is connected to the intake port 63 and the other end is connected to the intake / A unit manifold module 60 composed of an intake pipe 68 connected to the intake manifold 65;
A support rod 72 which is vertically moved up and down by a load of the workpiece and whose lower end portion is connected to the intake and exhaust port 65 of the unit manifold module 60 and a suction pad And a first inlet hole 77 which is spaced apart from each other by a predetermined distance and connected to the third and fourth pots 34 and 36 of the second air solenoid valve module 30, A cylinder 760 provided between the first inlet hole 77 and the second inlet hole 79 and provided in the inner space of the casing 760 and the second inlet hole 79, And the other end portion is fixedly coupled to the cylinder 762 at one end and the other end portion is extended through the front portion of the casing 760 and a pressurizing surface 767, A vacuum adsorption module 70 provided with a support syringe assembly composed of a pressure member 766 which is closely attached to the support rod 72 according to an operation;
A control module 80 for controlling each of the first and second air solenoid modules 20 and 30, the vacuum forming module 40, and the vacuum dissolving module 50;
And a control unit for controlling the pneumatic pressure of the vacuum suction table. The method according to claim 1,
Wherein the unit manifold module (60) comprises a plurality of unit manifold modules (60). 3. The method according to claim 1 or 2,
Each of the first check valve 62 and the second check valve 66 operates in one direction and the other direction and the vacuum degaussing module 50 is connected to the control valve 80 And a solenoid valve (52) that opens the solenoid valve (52). delete
KR1020140142671A 2014-10-21 2014-10-21 An apparatus for air pressure comtrol of worktable having suction device KR101518180B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107363732A (en) * 2017-07-25 2017-11-21 佛山杰致信息科技有限公司 A kind of inside pipe wall burnishing device
KR102672749B1 (en) 2023-12-05 2024-06-05 주식회사 엠티에스앤 Vacuum generation and control device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08238531A (en) * 1995-03-03 1996-09-17 Amada Co Ltd Vacuum pad absorbing device
JP3993419B2 (en) * 2001-11-08 2007-10-17 株式会社ディスコ Workpiece holding device
JP2009101467A (en) * 2007-10-24 2009-05-14 I & T:Kk Supply and exhaust controller in work suction transfer system
KR101311012B1 (en) * 2013-06-25 2013-09-24 영 진 이 A worktable having suction device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08238531A (en) * 1995-03-03 1996-09-17 Amada Co Ltd Vacuum pad absorbing device
JP3993419B2 (en) * 2001-11-08 2007-10-17 株式会社ディスコ Workpiece holding device
JP2009101467A (en) * 2007-10-24 2009-05-14 I & T:Kk Supply and exhaust controller in work suction transfer system
KR101311012B1 (en) * 2013-06-25 2013-09-24 영 진 이 A worktable having suction device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107363732A (en) * 2017-07-25 2017-11-21 佛山杰致信息科技有限公司 A kind of inside pipe wall burnishing device
KR102672749B1 (en) 2023-12-05 2024-06-05 주식회사 엠티에스앤 Vacuum generation and control device

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