JPH09317715A - Self-aligning adaptor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive self-aligning adaptor which can be compactly structured and simply controlled in its air supplying and discharging. SOLUTION: A spherical body 30 is arranged on one end of a support shaft 31 which supports an operation member 32 on the other end. The spherical body can be rotated by means of a spherical concave 19 in axes of (x), (y), (z). The operation member 32 is abutted against a flat surface in parallel therewith, and pneumatic pressure is applied to an upper surface of the piston 20. A pressurizing lever 23 is rotated, and the spherical body 30 is press fixed to the spherical concave 19 by means of a pressurizing cup 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-centering type adapter, and more particularly to a self-centering type adapter that performs a predetermined operation by bringing its operating member into contact with a flat abutted portion.

[0002]

2. Description of the Related Art For example, an operating plate 1 shown in FIG.
Must be abutted in parallel with the abutted portion. In order to achieve such an object, conventionally, a predetermined position of the working plate 1 is supported by a fixed rod 2, and the other two points are connected to the tip end portions of the piston rods of the air cylinders 3 and 4. However, the operating plate 1 is positioned so as to be parallel to the planar contacted portion by the three-point support structure.

[0003]

The conventional parallel flat structure requires two knock cylinders 3 and 4 which are air cylinders. For this reason, the scale of the apparatus becomes large, and there is a problem in applying it to a small operating plate 1. In addition, it is necessary to control the air pressures of the two air cylinders 3 and 4 independently of each other, which complicates the air pressure control system and increases the cost.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a low-cost self-aligning type adapter which is compact and has a simple control system. To aim.

[0005]

SUMMARY OF THE INVENTION According to the present invention, an actuating member that abuts a flat abutted portion to perform a predetermined operation, a spindle connected to the actuating member, and the spindle. A sphere attached to the end opposite to the actuating member, a sphere receiver that rotatably receives the sphere with respect to the x-axis, the y-axis, and the z-axis, and the sphere is pressed against the sphere receiver. Pressing means for rotating the sphere in the x-axis, y-axis, and z-axis directions with respect to the sphere receiver so that the operating member is parallel to the plane of the contacted portion. The present invention relates to a self-aligning type adapter, characterized in that the pressing means presses the sphere against the sphere receiver in the state of being kept.

A guide member constituted by the outer peripheral surface of the spherical body receiving member, a piston guided by the guide member, and a pressing lever which is rotated by the piston and constitutes the pressing means. When fluid pressure is applied to the piston, the piston may be guided by the guide member to move, and the pressing lever may be rotated to press the spherical body against the spherical body receiver.

[0007] The actuating member may be combined with an elevating cylinder to constitute a stamp head and perform a stamping operation.

The operating member may be connected to an elevating cylinder and the suction member may constitute a suction head to perform a suction operation.

[0009]

1 to 3 show a stamp device to which a self-aligning adapter according to an embodiment of the present invention is applied. As shown in FIG. 1, this stamping device is equipped with a lifting air cylinder 10. The air cylinder 10 includes a pair of rods 11 and 12, and these rods 11 and 12
The adapter 15 is supported via 12 so as to be movable in the vertical direction.

Next, the structure of the adapter 15 will be described. The adapter 15 is provided with a cylindrical housing as shown in FIG. A female screw hole 17 is provided at the center of the top plate 16,
The upper end portion of the spherical receiver 18 is screwed and fixed to the female screw hole 17. The lower surface of the sphere receiver 18 is a spherical recess 19. Such a ball receiver 18
A portion on the outer peripheral side is a guide surface, and the piston 20 is slidably supported by such a guide surface.

Inside the housing of the adapter 15, as shown in FIG. 2, left and right pressing levers 23 are arranged. These pressing levers 23 are rotatably supported by fulcrum pins 24. Moreover, a roller 25 is attached to the upper end side of the pressing lever 23, and the roller 25 comes into contact with an inclined surface provided on the lower surface of the piston 20. Further, another roller 26 is attached to the lower end side of the pressing lever 23 so as to press the pressing cup 27 having a cup shape.

The upper portion is received by the spherical concave portion 19 of the spherical body receiving member 18, and the lower portion side is pressed by the pressing cup 27.
A sphere 30 is located approximately in the center of the adapter 15 to be received by the adapter 15. A support shaft 31 is connected to a lower end portion of the spherical body 30 and the support shaft 31
The actuating member 32 is fixed to the lower end side of the. The lower end of the support shaft 31 is screwed and attached to the female screw hole 33 provided at the center of the operating member 32 (see FIG. 3).

A pair of upper and lower ports 37, 38 are provided on the outer surface of the adapter 15, respectively, to supply air to the upper surface side and the lower surface side of the piston 20 through these ports 37 and 38, respectively. I try to exhaust air from the space.

Next, the operation of the stamp device having the above structure will be described. Stamp operation is base 4
0 to the workpiece 41 arranged on the adapter 15
The stamping is performed by the operation member 32 on the tip side of the. In order to properly perform the stamping operation on the work 41, the sphere 30 shown in FIG. 3 is allowed to freely rotate within the rotation limits of the x-axis, the y-axis, and the z-axis.

When the compressed air is not supplied to the upper surface side of the piston 20, the pressing lever 23 is in the non-pressing state, so that the sphere 30 in the housing 15 has the z axis, the y axis, And z-axis are free. In such a state
The raising / lowering air cylinder 10 shown in FIG. 2 is lowered, and thus the adapter 15 is lowered. The actuating member 32 attached to the tip of the support shaft 31 of the adapter 15 is brought into close contact with the upper surface of the work 41. Ie 3 by the sphere 30
The actuating member 32, which is freely rotatable in the axial direction, is parallel-planarized so as to follow the plane of the work 41 on the base 40.

In this state, compressed air is supplied to the upper surface of the piston 20 through the port 37 provided in the upper portion of the housing of the adapter 15. Then, the rollers 25 provided above the left and right pressing levers 23 are pressed by the piston 20, and the pressing levers 23 rotate respectively. The left side pressing lever 23 is the fulcrum pin 2
It is rotated counterclockwise about 4. On the other hand, the pressing lever 23 on the right side is rotated clockwise about the fulcrum pin 24. Then, the rollers 26 provided on the side portions on the lower end side of these levers 23 press the pressing cup 27 upward. Therefore, the sphere 30 is pushed upward through the pressing cup 27 and is pressed into the spherical recess 19 of the sphere receiver 18. Therefore, the operating member 32 is the work 4
In the state in which the surface is parallel to the surface of No. 1, the sphere 30
Will be fixed.

Accordingly, by vertically moving the air cylinder 10 in such a state, it becomes possible to sequentially perform the stamping operation on the work 41. At this time, the operating member 32 is always in a correct and parallel plane with respect to the work 41. Since it is carried out in the released state, it is possible to automatically parallelize the stamp surface, and the automation of the stamping work is achieved, and the automation of the stamping work that requires particularly high precision is achieved. become.

When the fixing of the sphere 30 as described above is released, the air pressure by the port 37 is released, and
Air pressure may be applied through the lower port 38. As a result, the piston 20 rises and the left and right pressing levers 23
Is free to rotate, and the spherical body 30 is in a state of being rotatable about the x-axis, the y-axis, and the z-axis with respect to the spherical recess 19 of the spherical body receiver 18.

Next, another embodiment will be described with reference to FIGS. This embodiment is applied to an automatic pickup device. That is, the work 41 having a planar shape on the base 40 is sucked by the operating member 32.

Here, as shown in FIG. 5, the actuating member 32 is used.
The suction groove 45 is formed so as to open at the lower end surface of the suction hole 46, and the suction groove 46 through which the support shaft 31 is inserted, the suction hole 47 extending in the sphere 30 in the vertical direction, and the sphere receiver 18 are formed. It is adapted to communicate with a suction hole 48 formed in the central portion of the shaft in the axial direction.

In general, in a pickup head using vacuum suction, unless the suction surface of the suction head and the object to be sucked are parallel to each other, air leaks and the workpiece cannot be securely sucked and held. However, in the present embodiment, the adapter 15 ensures that the operating member 32 forming the suction head is parallel to the work 41. That is, the adapter 15 is lowered by the air cylinder 10, and the operating member 32 is moved to the base 40.
The upper work 41 is brought into contact with the upper work 41, and compressed air is applied from the port 37 of the adapter 15 to the upper surface of the piston 20 in this state. Then, the piston 20 descends, the left and right pressing levers 23 are respectively rotated, and the pressing cup 27 moves upward to move the sphere 30 into the spherical recess 1 of the sphere receiver 18.
Crimp to 9. As a result, the operating member 32 moves the work 41
Position and fix in a state parallel to.

Accordingly, by vertically moving the adapter 15 by using the air cylinder 10 in the state where the operating member 32 is flattened in parallel, the work 41 can be vacuum-sucked through the operating member 32. To do. The vacuum suction operation is achieved by vacuum suction through the suction groove 45 and the suction holes 46 to 48 to suction-hold the work 41 on the lower surface of the operating member 32.

The self-centering type adapter 15 according to the above-described two embodiments uses the sphere 30 to enable simultaneous fixing of the three axes of the x-axis, the y-axis, and the z-axis, and the fulcrum pin 24. It is possible to press down the high pressure lever 23 that rotates about the
The lock can be opened and closed by the air pressure applied through 38. Therefore, simplification, downsizing and cost reduction of the self-aligning type adapter can be achieved at the same time. Further, maintenance-free is achieved without requiring maintenance, and since the parallel flattening mechanism is automated, it can be widely applied to various automatic machines that require parallel flattening.

[0024]

According to the present invention, an actuating member that abuts a flat abutted portion to perform a predetermined operation, a spindle connected to the actuating portion, and an actuating member of the spindle are opposite to each other. A sphere attached to the end on the side, a sphere receiver that rotatably receives the sphere with respect to the x-axis, the y-axis, and the z-axis; and pressing means that presses the sphere against the sphere receiver. The pressing means presses the sphere against the sphere receiver in a state where the sphere is rotated in the x-axis, y-axis, and z-axis directions with respect to the sphere receiver so that the operating member is parallel to the plane of the contacted portion. It was done like this.

Therefore, the actuating member is brought into contact with the flat abutted portion in a state in which the sphere is rotatable about the x-axis, the y-axis, and the z-axis, and in this state, the sphere is received by the pressing means as a sphere receiver. By pressing and fixing, it is possible to carry out parallel plane alignment, and it is possible to reliably perform parallel plane alignment only by supporting at one place.

The piston is provided with a guide member constituted by the outer peripheral surface of the spherical body receiver, a piston guided by the guide member, and a pressing lever which is rotated by the piston and constitutes a pressing means. According to the structure in which the piston is moved by being guided by the guide member when it is added and the pressing lever is rotated to press the sphere against the sphere receiver, the self-aligning type having a parallel plane-extracting function with a simple structure. An adapter is provided.

When the stamping operation is performed by the actuating member being connected to the lifting cylinder, the stamping operation can be automated with high precision.

When the suction member is connected to the elevating cylinder and the operating member constitutes the suction head to perform the suction operation, the reliable suction operation is performed.

[Brief description of drawings]

FIG. 1 is a front view showing the overall configuration of a stamp device.

FIG. 2 is a vertical sectional view of a self-aligning type adapter.

FIG. 3 is an external perspective view of a sphere having an actuating member at its tip.

FIG. 4 is a front view of a vacuum suction type pickup device.

FIG. 5 is a vertical sectional view of a self-aligning type adapter.

FIG. 6 is a perspective view of a main part of a conventional parallel flattening mechanism.

[Explanation of symbols]

1 ·······································································································
Rod, 15 Adapter, 16 Top plate, 17
・ ・ ・ Female screw hole, 18 ・ ・ ・ Sphere receiver, 19 ・ ・ ・ Spherical recess,
20 ... piston, 23 ... pressing lever, 24 ... fulcrum pin, 25, 26 ... roller, 27 ... pressing cup, 30
Sphere, 31 spindle, 32 operating member, 33
Female screw holes, 37, 38, ... Port, 40 ... Base, 4
1 ... Workpiece, 45 ... Suction groove, 46-48 ... Suction hole

Claims (4)

[Claims] 1. An actuating member that abuts a flat abutted portion to perform a predetermined operation, a spindle connected to the actuating member, and a side of the spindle opposite to the actuating member. A sphere attached to the end of the sphere, a sphere receiver that rotatably receives the sphere with respect to the x-axis, the y-axis, and the z-axis, and a pressing unit that presses the sphere against the sphere receiver. Then, the pressing means is operated in a state in which the sphere is rotated in the x-axis, y-axis, and z-axis directions with respect to the sphere receiver so that the operating member is parallel to the plane of the contacted portion. A self-aligning type adapter characterized in that a sphere is pressed against the sphere receiver. 2. A guide member constituted by an outer peripheral surface of the spherical body receiving member, a piston guided by the guide member, and a pressing lever which is rotated by the piston and constitutes the pressing means. When the fluid pressure is applied to the piston, the piston is moved by being guided by the guide member and the pressing lever is rotated to press the sphere against the sphere receiver. Self-aligning adapter described in. 3. The self-aligning type adapter according to claim 1, wherein the self-aligning adapter is connected to an elevating cylinder and the actuating member constitutes a stamp head to perform a stamping operation. 4. The self-aligning type adapter according to claim 1, wherein the self-aligning adapter is connected to an elevating cylinder and the operating member constitutes a suction head to perform a suction operation.