JPH07205077A - Thin-walled body sucking device - Google Patents

Abstract

PURPOSE:To provide a device which can suck an object of a thin-walled body formed into thin walls which are liable to cause deformation of a shape and scratch out of, for example, aluminum, by negative air pressure. CONSTITUTION:A recessed taper 12 whose opening is enlarged from a stepped section 11 of a loading base 1 toward an upper end is formed, and a sucking face 21 which can adhere to a workpiece W closely and a projected taper 22 which is enlarged upward from a lower end by positional relation which forms a predetermined space 6 between a top face of the workpiece W and the sucking face 21 are formed on a bottom face of a sucker 2. A second projected taper which is enlarged upward from an intermediate barrel section of a suspension rod 3 is formed. A second recessed taper whose opening is enlarged upward from an upper end peripheral fringe of an insertion hole of a suspension arm and which agrees with the second projected taper roughly is formed to suspend the sucker 2 by the suspension rod 3 and the suspension arm, and it is positioned immediately before the sucker 2 comes into contact with the workpiece W primarily and mechanically without applying descent pressing force from the suspension arm on mutual contact faces.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin-walled adsorption device, and more specifically, it has a low tensile strength or a low surface hardness, so that it is apt to be deformed or damaged by an external force. The present invention relates to a thin-walled adsorption device for use in a device for sucking and adsorbing an article that cannot be held, for example, a thin-walled article made of aluminum or its alloy, copper or its alloy, or the like, by negative air pressure and transferring. is there.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Patent Publication No. Sho 48-392.
No. 46, "Transfer method for plate-shaped plate-picking device to transfer rack and adsorption device using the same", Jikho Sho 56-16
No. 29 "Sheet suction device", Japanese Patent Publication No. 57-58257
No. "Handling Finger", Jikkou 57-50
No. 230, "Suction part in vacuum suction device", Jikkou 4
No. 50300 “Adsorber” is disclosed,
Most of them adsorb a plate or sheet-like work such as a metal plate, glass plate, paper, etc., and these make the adsorbent contact the work temporarily and mechanically, or It is further pressed after contact, and it is easy for shape deformation and flaws to occur.For example, if a thin body formed of aluminum or its alloy, copper or its alloy, etc. as a material is adsorbed, shape deformation and flaws will occur. It is easy.

[0003]

The prior art Japanese Patent Publication No. 48-39246 and Japanese Utility Model Publication No. 56-1629 are very similar in technology, but the former is composed of a large number of bowls due to the vertical movement of the piston 7 of the cylinder 3. The suction part 5 is brought into contact with a plate glass, a metal plate or the like for suction, and in the latter case, a large number of bowl-shaped suction cups 6 are brought into contact with a sheet or the like by the vertical movement of the piston 4 of the cylinder 1 to suck them. The thing
Since the adsorbent is in primary contact with the work mechanically, the shape of the work of the thin-walled body is not only easily deformed by the pressing of the adsorber, but the shape of the adsorbent is formed into a bowl shape. There is a problem that the shape of the work is easily deformed following the bowl shape.

Next, in Japanese Patent Publication No. 57-58257, an O-ring 4 is provided on the bottom surface of the finger main body 3 to serve as an adsorber, and the finger main body 3 is moved up and down to abut on a work such as an optical lens for adsorption. Since the adsorbent abuts the work temporarily and mechanically, not only the shape of the thin-walled work is easily deformed by pressing the adsorber, but also the step between the bottom surface of the adsorber and the O-ring 4 is generated. There is a problem in that the work of the thin-walled body is easily deformed to cause a step.

[0005] Next, Japanese Utility Model Publication No. 57-50230 is formed of a soft material in a downward dish shape or a bowl shape on the outside of the inner suction cup 1 formed of a hard material in a downward dish shape or a bowl shape. The outer suction plate 3 is superposed and adhered to form an adsorbent, and the adsorbent is moved up and down to abut on a work such as a printed circuit board having a smooth surface and then press it to adsorb the work. Since the shape of the work of the thin-walled body is easily deformed by the pressing of the adsorbent because of the primary and mechanical contact, the shape of the adsorbent is formed in the downward plate shape or the bowl shape, There has been a problem that the shape of the work is easily deformed following the downward plate shape or the bowl shape.

Next, in Japanese Utility Model Publication No. 4-50300, an elastic body 2 is attached to the back surface of a thin adsorbent 1 which is formed into a trumpet-like shape so that the work piece fits well to a work. It adsorbs by bringing it into contact with a work such as a fruit or an egg, and the adsorbent temporarily and mechanically abuts the work, so that the shape of the thin-walled work is not only easily deformed by the pressing of the adsorber. However, since the shape of the adsorbent is formed in a trumpet shape, there is a problem that the shape of the thin-walled work is easily deformed following the trumpet shape.

Further, in the case where the material of the adsorbent is an elastic body, there are problems that the positioning accuracy of positioning is low, the oil resistance is poor, and the stability is poor.

Further, in the case where the adsorbent is brought into contact with the work temporarily and mechanically, in order to avoid the adsorbent from colliding with the work, the adsorbent is moved immediately before the adsorber comes into contact with the work. There is a problem in that it is necessary to slow down the descending speed, it is necessary to pay attention to the positioning accuracy of the descending end position of the adsorbent, and the production efficiency becomes low and the structure of the device becomes complicated.

The present invention has been made in view of the above problems, and an object thereof is that the material of the adsorbent is not limited to an elastic body and a rigid body can be used without any problem.
An adsorbing device with a thin-walled body that has high productivity and a simple structure without adsorbing the adsorbent mechanically or mechanically, adsorbing without causing shape deformation or flaws on the work. It is the one we are trying to provide.

[0010]

In order to achieve the above object, the thin-body suction device according to the present invention has a stepped portion on which a work can be placed between the upper end and the lower end with a hollow upper end. The stepped portion is provided with a concave taper that is widened from the peripheral edge toward the upper end, and an air vent that penetrates the stepped portion to the lower end is provided inwardly in contact with the work of the stepped portion. A perforated mounting table and a lower surface provided with a suction surface that can be brought into close contact with the upper surface of the work are expanded upward from the peripheral edge of the lower end so as to be able to come into close contact with the concave taper of the above described mounting table, and The convex taper is formed in a positional relationship that forms a predetermined space between the upper surface of the work placed on the stepped portion of the mounting table and the suction surface in the state of being in contact with the concave taper, and A negative pressure hole that allows a negative pressure to flow from a predetermined position toward the suction surface, and a negative pressure hole and a negative pressure. A suction member having a necessary number of suction holes for penetrating the suction surface and supplying a negative pressure to the space between the suction surface and the upper surface of the work to suck the work. After contacting the concave taper of the mounting table with the convex taper of the adsorption element, a negative pressure was supplied to the space between the adsorption surface of the adsorption element and the upper surface of the work, and the table was placed on the stepped portion of the mounting table. The work is adsorbed on the adsorbing surface of the adsorber.

Further, a joining portion is provided at the inlet of the negative pressure hole of the adsorber, and a joining portion for joining with the joining portion of the adsorber so that negative pressure can flow is provided at the lower end, and the joining portion is provided upward from the outer middle body portion. A suspension cullet that is formed with a second convex taper that is enlarged toward the bottom, and a second negative pressure hole that penetrates from the upper end to the lower end to allow negative pressure to flow through the substantially axial center, and from the lower end to the substantially central portion. A through hole through which the middle body portion of the suspension culm is loosely inserted, is formed between the upper and lower ends of the insertion hole, and the second protrusion of the suspension culm is expanded upward. A suspension arm formed with a second concave taper that substantially matches the taper, and the joint portion and the middle trunk portion of the suspension culm are inserted from the upper end side of the suspension arm into the insertion hole, and the suspension culm is also provided. The negative pressure hole of the adsorber so that negative pressure can flow between the second negative pressure hole of the adsorber and the negative pressure hole of the adsorber Pressing Without pressurizing the concave taper of the mounting table convex taper of adsorbates by and is obtained by into contact with self-aligning.

[0012]

The operation of the present invention constructed as described above will be described below with reference to FIGS. 1, 4 and 6.

As shown in FIG. 1, the mounting table 1 has a hollow upper end and is provided with a step portion 11 on which a work W can be placed between the upper end and the lower end. The suction taper 2 is provided with a suction taper 21 that can be in close contact with the upper surface of the work W, and is expanded upward from the peripheral edge of the lower end. No. 1 concave taper 12 and the workpiece W placed on the stepped portion 11 in a state in which the concave taper 12 can be brought into close contact with the concave taper 12.
Since the convex taper 22 is formed in a positional relationship that forms the predetermined space 6 shown in FIG. 6 between the upper surface of the adsorbent 2 and the adsorbing surface 21, when the adsorbent 2 is lowered, The adsorbent 2 is positioned immediately before the primary and mechanical contact with W, and as shown in FIG. 4, a negative pressure generating device (not shown) causes the second negative pressure from the joint connection portion 34 of the suspension culvert 3. When negative pressure is supplied to the space 6 on the upper surface of the work W shown in FIG. 6 through the hole 33, the negative pressure hole 23 of the adsorber 2, the relay hole 25, and the required number of suction holes 26, the space 6 on the upper surface of the work W
Is lower than the atmospheric pressure of the space under the work W,
The work W floats, and the work W is sucked by a required number of suction holes 26 of the adsorber 2 and is closely adhered to the suction surface 21 to be sucked.

Further, as shown in FIG. 1, the suspension culvert 3 is formed with a second convex taper 32 which is enlarged upward from the middle body of the outer periphery, and the suspension arm 4 has a rectangular shape. An insertion hole 43 is formed between the lower end of the body and approximately the center of the suspension culm 3 so that the middle body of the suspension culvert 3 can be loosely inserted, and the upper end of the insertion hole 43 is widened upward. And, by forming a second concave taper 42 that substantially matches the second convex taper 32 of the suspension culvert 3,
For example, since it is configured to be attached to an actuator such as a pick and place (not shown), as shown in FIG. 2, the suspension arm 4 is lowered by the operation of an up and down movable actuator of the pick and place (not shown). 4, the convex taper 22 of the adsorber 2 is brought into contact with the concave taper 12 of the mounting table 1 without pressurizing the abutting surfaces thereof against each other, and as shown in FIG. 4 is lowered and the second concave taper 42 of the suspension arm 4 is lifted by a pick-and-place vertically movable actuator (not shown) at a predetermined lower end position after being separated from the second convex taper 32 of the suspension culvert 3. Even when the arm 4 is positioned and the concave taper 12 of the mounting table 1 and the convex taper 22 of the suction element 2 are in contact with each other with their axes misaligned, the convex taper 22 of the suction element 2 is concave in the mounting table 1. Taper By the action of the automatic alignment following the 2, concave taper 12 of the mounting table 1 the convex taper 22 of Kyuchakuko 2
In close contact with.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the construction of a thin-walled adsorption device according to the present invention will be described below with reference to FIGS. 1 to 3 and 6.

The mounting table 1 has a hollow upper end and is provided with a stepped portion 11 on which a work W can be placed between the upper end and the lower end. Taper 1
2 is formed, and a ventilation hole 13 that penetrates from the step portion 11 to the lower end and circulates the atmosphere is bored inside the step portion 11 in contact with the work W, and is attached to the conveying member 5.

The suction member 2 is provided with a suction surface 21 on the lower surface which can be in close contact with the upper surface of the work W, and is enlarged upward from the peripheral edge of the lower end so as to be substantially in close contact with the concave taper 12 of the mounting table 1, and The predetermined space 6 shown in FIG. 6 between the upper surface of the work W placed on the stepped portion 11 of the mounting table 1 and the suction surface 21 in the state of being brought into contact with the concave taper 12 of the mounting table 1. Forming a convex taper 22 in the positional relationship that forms the negative pressure hole, and forming a negative pressure hole 23 in which a female screw for allowing a negative pressure to flow from the upper end toward the suction surface 21 is formed in the substantially axial center, and the negative pressure hole is formed. A locking hole 24 for locking the middle body part of the suspension culvert 3 is formed on the upper end side of 23, and the negative pressure hole 23 and a relay hole 25 are formed between the upper end and the lower end so that negative pressure can flow. The suction surface 21 penetrates the suction surface 21 from the relay hole 25 so that the negative pressure can flow through the negative pressure hole 23.
6 and the upper surface of the work W are provided with a required number of suction holes 26 for supplying the negative pressure to the space 6 shown in FIG.

The suspension culvert 3 is provided at its lower end with a negative pressure hole 23 in which the female screw of the adsorber 2 is screwed, and a male screw threaded joint portion 31 for joining the negative pressure so that the negative pressure can flow. A second convex taper 32 that is enlarged upward is formed, and a second negative pressure hole 33 that penetrates the substantially axial center from the upper end to the lower end and allows negative pressure to flow therethrough is formed. At the upper end of the, a joint connecting portion 34, in which a female screw for joining a piping material such as a flexible tube (not shown) from a negative pressure generating device (not shown) is threaded, is provided, and the joining portion 31 is set to the suspension arm 4 to be described below. After the joint portion 31 and the middle body portion are inserted, the male screw of the joint portion 31 and the female screw screwed in the negative pressure hole 23 of the adsorber 2 are screwed together.

The suspension arm 4 is provided with an insertion hole 43 between the lower end of the rectangular parallelepiped and the substantially central portion thereof, through which the middle body of the suspension culvert 3 is freely inserted, and the insertion hole 43 is formed. From the upper edge of the upper part of the upper part, the second convex taper 3 of the suspension culvert 3 is expanded upward.
A second concave taper 42 that substantially matches 2 is formed and attached to an actuator such as a pick and place (not shown).

In the constituent members formed as described above, for example, the mounting table 1 is attached to the conveying member 5 which can be swung or moved back and forth, and the suspension arm 4 is attached to the second actuator of the actuator such as a pick and place (not shown). Attaching with the concave taper 42 upward, mount the suspension rig 3 so that the second convex taper 32 of the suspension rig 3 engages with the second concave taper 42 of the suspension arm 4.
After inserting into the suspension arm, the adsorber 2 is screwed to the suspension culvert 3, and the suspension arm 4
The second convex taper 3 of the suspension culvert 3 by the second concave taper 42 of
2 is supported, and the adsorber 2 is suspended on the suspension arm 4 together with the suspension culm 3.

The suspension culvert 3 is supported by placing the second convex taper 32 thereof by engaging the second concave taper 42 of the suspension arm 4 and placing the suspension culm 3 on the outer periphery of the middle trunk portion of the suspension culm 3. Since it is loosely engaged with the insertion hole 43 of the suspension arm 4, the convex taper 22 of the adsorber 2 is recessed from the top of the mounting table 1 as shown in FIG. When the taper 12 is brought into contact with each other, the downward pressing force from the suspension arm 4 is brought into contact with each other without pressurizing the contact surfaces, and when the suspension arm 4 is subsequently lowered, as shown in FIG. Second concave taper 4 of suspension arm 4
2 is separated from the second convex taper 32 of the suspension culvert 3, and the concave taper 12 of the mounting table 1 and the convex taper 22 of the adsorber 2 are separated from each other.
Even if they are in contact with each other in a state where the axes of and are in contact with each other, the convex taper 22 of the adsorbent 2 acts as an automatic alignment following the concave taper 12 of the mounting table 1, and the convex taper 22 of the adsorbent 2 is The concave taper 12 of the mounting table 1 is closely attached.

Then, after the mounting table 1 attached to the conveying member 5 and having the work W mounted thereon is positioned at a predetermined position, the convex taper 22 of the suction element 2 is formed above the concave taper 12 of the mounting table 1. The suspension arm 4 is positioned at a position facing the substantially coaxial core.
Is lowered to bring the convex taper 22 of the suction element 2 into contact with the concave taper 12 of the mounting table 1 as shown in FIG. 2, and a predetermined distance is provided between the suction surface 21 of the suction element 2 and the upper surface of the work W shown in FIG. Space 6
Is configured to form.

Next, the operation of the adsorption device for a thin-walled body according to the present invention and its embodiment will be described below with reference to FIGS. 1 to 6.

In FIG. 1, the second concave taper 42 of the suspension arm 4 attached to the vertically movable actuator of pick and place (not shown) is connected to the second convex taper 32 of the suspension culvert 3.
The workpiece W is placed on the stepped portion 11 and the conveying member 5 positions the workpiece W at a predetermined position so that the workpiece W is opposed to the upper side of the mounting table 1 by engaging with each other and suspending the adsorber 2 on the suspension arm 4 together with the suspension culm 3. The adsorbing element 2 is positioned at a desired position by operating a pick-and-place turning or advancing / retreating actuator (not shown).

In FIG. 2, the suspension arm 4 is lowered by the operation of a vertically movable actuator such as a pick-and-place (not shown), and the downward pushing force from the suspension arm 4 is applied without pressurizing the contact surfaces. The convex taper 22 of the adsorber 2 is brought into contact with the concave taper 12 of the stand 1.

In FIG. 3, the suspension arm 4 is subsequently lowered, and the second concave taper 42 of the suspension arm 4 is moved to the second position of the suspension culvert 3.
At a predetermined lower end position after being separated from the convex taper 32, the suspension arm 4 is positioned by a not-shown vertically movable actuator such as a pick-and-place, and the concave taper 12 of the mounting table 1 and the convex taper 22 of the adsorption member 2 are positioned. Even if the shaft core of the adsorbent 2 is abutted in a distorted state, the convex taper 22 of the adsorbent 2 performs an automatic alignment operation following the concave taper 12 of the mounting table 1 to mount the convex taper 22 of the adsorbent 2 thereon. It is brought into close contact with the concave taper 12 of the table 1.

In FIG. 4, a negative pressure generator (not shown) is used to move the joint connecting portion 34 of the suspension culvert 3 to the second negative pressure hole 3.
3, the negative pressure is supplied to the space 6 on the upper surface of the work W shown in FIG. 6 through the negative pressure hole 23, the relay hole 25 of the adsorber 2, and the required suction holes 26. The atmospheric pressure is lower than the atmospheric pressure of the space under the work W, the work W floats, and the work W is sucked by the required suction holes 26 of the adsorbent 2 and adheres to the adsorbing surface 21 of the adsorbent 2. Are absorbed.

In FIG. 5, the work W is continuously supplied with the negative pressure described in the previous column, and the work W has a required number of suction holes 26 of the adsorber 2.
The suspension arm 4 is lifted by the operation of a vertically movable actuator such as a pick-and-place (not shown) while being attracted to the suction surface 21 of the suction element 2 and adsorbed to the second surface of the suspension culvert 3. The second concave taper 42 of the suspension arm 4 is engaged with the convex taper 32 to suspend the adsorber 2 on the suspension arm 4 together with the suspension culvert 3, and then the suspension arm 4 is raised to place the first mount. At a predetermined upper end position after the contact surfaces of the concave taper 12 and the convex taper 22 of the suction element 2 are separated from each other, the pick-and-place vertically movable actuator (not shown) is operated to suspend the suspension arm 4 on the suspension arm 4. Adsorption surface 21 suspended with the culm 3
The work piece W is closely attached to and the adsorber 2 that has adsorbed the work piece W is positioned.

Then, after the adsorber 2 is positioned at a desired position by the operation of a pick-and-place turning or advancing / retreating actuator (not shown), from the joint connecting portion 34 of the suspension culvert 3 to the second negative pressure hole 33 and further. When the negative pressure supplied by the negative pressure generator (not shown) is released to the upper surface of the work W through the negative pressure hole 23, the relay hole 25 and the required suction holes 26 of the adsorber 2 (if necessary, the negative pressure is generated). After releasing the above, air is blown from the required suction holes 26 to the upper surface of the work W), the atmospheric pressure of the space 6 on the upper surface of the work W becomes equal to the atmospheric pressure of the space on the lower surface of the work W, and the work W is caused by its own weight. The work W is placed at a desired position by separating from the suction surface 21 of the suction element 2 and dropping.

In the present embodiment, the mounting first is attached to the conveying member 5 which can be swung or reciprocated, but the mounting table 1 can be attached to the fixed conveying member 5 according to the present invention. Can be implemented. Further, the pick-and-place (not shown) has been described as having the actuator capable of moving up and down by attaching the suspension arm 4 and the actuator capable of turning or advancing and retreating. The present invention can be implemented by providing only movable actuators.

[0031]

Since the present invention is configured as described above, it has the following effects.

The mounting table 1 is formed with a concave taper 12 that is widened from the peripheral edge of a stepped portion 11 having a hollow upper end toward the upper end, and a suction surface 21 that can be brought into close contact with the upper surface of the work W on the lower surface. Is provided, and is enlarged upward from the peripheral edge of the lower end,
A predetermined space 6 is provided between the upper surface of the work W placed on the stepped portion 11 and the suction surface 21 so as to be able to be in close contact with the concave taper 12 of the mounting table 1 and to be in contact with the concave taper 12. Since the adsorbent 2 is formed with the convex taper 22 in the positional relationship to be formed, the adsorbent is positioned immediately before the adsorbent temporarily and mechanically abuts the work, and the thin-walled work formed into a thin wall is adsorbed. The shape is not deformed or flawed by the external force caused by the pressing of the child, the shape does not deform according to the shape of the adsorber, and the material of the adsorber can be used rigidly, so positioning accuracy is high. , And then
The production efficiency is high and the structure of the device is simple.

Further, the suspension culvert 3 in which the second convex taper 32 which is enlarged upward from the middle body portion is formed, and the suspension culvert 3
Suspension arm 4 having a second concave taper 42 formed to expand upward from the upper end peripheral edge of an insertion hole 43 through which the middle trunk portion is loosely inserted and which substantially matches the second convex taper 32. Since the adsorber 2 is suspended by and, the suspension arm 4
The convex taper 22 of the adsorber 2 is brought into contact with the concave taper 12 of the mounting table 1 without pressurizing the downward pressing force from each other to the abutting surfaces thereof, and the mutual axial centers are in contact with each other in a disaligned state. Even if the convex taper 22 is replaced by the concave taper 12
It is not necessary to slow down the descending speed of the adsorbent immediately before the adsorbent comes into contact with the work, and it is not necessary to pay particular attention to the positioning accuracy of the descending end position of the adsorbent. Further, the production efficiency is high and the structure of the device can be simplified.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a configuration of the present invention, and is a cross-sectional view showing a mode in which an adsorbent is suspended on a suspension arm and the adsorbent is positioned above a mounting table.

FIG. 2 is an explanatory view showing the configuration of the present invention, and is a cross-sectional view showing a form in which a suspension arm is lowered and a convex taper of an adsorber is brought into contact with a concave taper of a mounting table.

FIG. 3 is an explanatory view showing the configuration of the present invention, and is a cross-sectional view showing a form in which the suspension arm is subsequently lowered and the convex taper of the adsorbent is automatically aligned with the concave taper of the mounting table to be in close contact. .

FIG. 4 is an explanatory view showing the configuration of the present invention, and is a cross-sectional view showing a form in which a negative pressure is supplied to the space on the upper surface of the work and the work is adsorbed on the adsorbing surface of the adsorbent.

FIG. 5 is an explanatory view showing the configuration of the present invention, and is a cross-sectional view showing a form in which a suspension arm is lifted to suspend an adsorbent and contact surfaces of a concave taper and a convex taper are separated from each other.

FIG. 6 is an explanatory view showing the constitution of the present invention, and is an enlarged view of the main suction part of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Mounting table 2 Adsorber 3 Suspended culm 4 Suspended arm 5 Transport member 6 Space 11 Step 12 Concave taper 13 Vent hole 21 Adsorption surface 22 Convex taper 23 Negative pressure hole 24 Locking hole 25 Relay hole 26 Suction hole 31 Joining Part 32 Second convex taper 33 Second negative pressure hole 34 Joint joint 42 Second concave taper 43 Insertion hole W Work

Claims (2)

[Claims] 1. A hollow upper end is provided with a stepped portion on which a work can be placed between the upper end and the lower end, and a concave taper is formed so as to widen from the peripheral edge of the stepped portion toward the upper end. A mounting table having a ventilation hole penetrating from the step portion to the lower end to allow the air to flow therethrough, and a lower surface provided with a suction surface that can be in close contact with the upper surface of the work The upper surface of the work, which is enlarged from the peripheral edge and is substantially in close contact with the concave taper of the mounting table, and which is placed on the stepped portion of the mounting table in a state of being in contact with the concave taper of the mounting table. A negative pressure hole for forming a predetermined space between the suction surface and the suction surface, and a negative pressure hole for passing a negative pressure from a predetermined position on the upper end side toward the suction surface, and the negative pressure hole. Supplying negative pressure to the space between the suction surface and the upper surface of the workpiece by penetrating the suction surface so that negative pressure can flow. A suction cup having a required number of suction holes for sucking the workpiece, and after bringing the concave taper of the mounting table and the convex taper of the suction table into contact with each other, A suction device for a thin-walled body, characterized in that a negative pressure is supplied to a space between the suction table and a work placed on a step portion of a mounting table to be sucked onto a suction surface of an adsorber. 2. A joint is provided at the inlet of the negative pressure hole of the adsorber, and a joint is provided at the lower end for joining the joint of the adsorber so that negative pressure can flow. A suspension cullet that is formed with a second convex taper that is enlarged toward the bottom and a second negative pressure hole that penetrates from the upper end to the lower end and flows negative pressure through the substantial axis, and from the lower end to the approximately central portion. A through hole through which the middle body portion of the suspension culm is loosely inserted, is formed between the upper and lower ends of the insertion hole, and the second protrusion of the suspension culm is expanded upward. A suspension arm having a second concave taper that substantially matches the taper, and the joint portion and the middle trunk portion of the suspension culvert are inserted into the insertion hole from the upper end side of the suspension arm, and The negative pressure hole of the adsorber so that negative pressure can flow between the second negative pressure hole of the adsorber and the negative pressure hole of the adsorber For pressing force Without pressurizing the concave taper of the mounting table convex taper of adsorbates I, and a thin body of the suction device according to claim 1, wherein so as to abut with automatic aligning.