JPH0524207U - Sealing device for scroll groove in scroll check - Google Patents

Abstract

(57) [Abstract] [Purpose] By completely sealing the scroll groove in the scroll chuck, it is possible to prevent cutting powder and dust from entering into the exposed scroll groove from the outside as in the conventional case, and thereby the clamp claw. Does not hinder sliding. [Structure] Scroll 2 in scroll chuck 1
A tubular seal 4 that is expandable and contractible in a bellows shape is inserted into the scroll groove 3 of the, and a reinforcing material 7 is adhered or coated 7 on the surface of the seal 4 that abuts the convex portion 6 of the clamp claw 5.
Then, both ends of the seal 4 are fixed with screws 8 and the like, and an air inlet 9 is provided in a part of the seal 4 so that air is supplied from the air inlet 9 so that a scroll groove sealing device is provided. Is.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a scroll groove seal device in a scroll chuck, which is capable of preventing cutting powder and dust from entering from the outside.

[0002]

[Prior Art]

 In general, scroll chucks have many characteristics such as accuracy, work holding force, and large stroke.The scroll groove is characterized by large stroke, but from the point where the convex portion of the clamp claw is disengaged. The scroll groove was exposed, and cutting powder and dust from the outside tended to enter here, which had a fatal drawback of hindering sliding of the clamp claw.

Conventionally, a device that effectively seals the scroll groove in such a scroll chuck has not been developed.

[0004]

[Problems to be solved by the device]

 In the conventional technology described above, the scroll groove in the scroll chuck cannot be effectively sealed.Therefore, cutting powder and dust from the outside easily enter the exposed scroll groove, which hinders the sliding of the clamp claw. It had a fatal issue of coming.

Further, since the scroll groove in the scroll check cannot be effectively sealed, the automation of the scroll check cannot be stably performed, and the internal gear portion cannot be sealed during the automation. Had a point.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to completely seal the scroll groove in the scroll chuck so that the conventional technique is used. It prevents cutting powder and dust from entering the exposed scroll groove from the outside, which does not hinder the sliding of the clamp claws and also enables stable automation of the scroll chuck. It is an object of the present invention to provide a scroll groove sealing device in a scroll chuck that can also seal an internal gear portion during automation.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a scroll groove sealing device for a scroll chuck, wherein a scroll-shaped scroll groove of a scroll chuck is fitted with a tubular seal filled with air.

Further, it is preferable that the seal can be expanded and contracted in a bellows shape.

Further, it is preferable that a reinforcing material is adhered or coated on the surface of the seal, which contacts the convex portion of the clamp claw.

Further, both ends of the seal can be fixed with screws or the like.

Further, an air inlet may be provided in a part of the seal so that air is supplied from the air inlet.

[0012]

[Action]

 The above technical means operate as follows. When a tube-shaped seal 4 filled with air is inserted into the scroll groove 3 of the scroll 2 of the scroll chuck 1, the protrusions 6 of the clamp claws 5 at the three locations slide and the location where it hits the seal 4 is compressed. The width becomes L, and it fits in the reduced space.

Then, the seal 4 sequentially expands from the opened portion of the convex portion 6 of the clamp claw 5, and the width thereof becomes M to fill the scroll groove 3 and prevent intrusion of cutting powder or dust from the outside. To be

When the seal 4 is made to be expandable and contractible in a bellows shape, the above-described action is exerted more effectively, and the seal 4 is operated without an air source.

When the reinforcing material 7 is adhered or coated on the surface of the seal 4 that contacts the convex portion 6 of the clamp claw 5, the seal 4 is prevented from being damaged by the sliding of the clamp claw 5.

When both ends of the seal 4 are fixed with screws 8 or the like, the seal 4 is prevented from being accidentally removed from the scroll groove 3.

When the air inlet 9 is provided in a part of the seal 4 and air is supplied from the air inlet 9, the air pressure ensures the tubular or bellows-like seal 4. It is made to extend in the width direction so that the width becomes M.

[0018]

【Example】

 Examples will be described with reference to the drawings. FIGS. 1, 3 and 5 show a scroll chuck in which a scroll groove sealing device of the scroll chuck of the present invention is implemented. FIG. 1 is a front view, a central longitudinal sectional view thereof, and FIG. 3 is a front view thereof. 5 and 5 are enlarged vertical cross-sectional views of the main part (however, the positional relationship between the scroll 2 and the clamp claw 5 are not matched).

FIG. 2 is an enlarged perspective view of an end cross-section showing the essential parts of the seal and the reinforcing material used in the sealing device of the present invention at the time of reduction, and FIG. 4 is used in the sealing device of the present invention. FIG. 7 is an enlarged perspective view of an end cross section showing one end when the seal and the reinforcing material are extended.

In FIGS. 2 and 4, 4 is a tubular seal that is expandable and contractible in a bellows shape, 7 is a reinforcing material or coating adhered to the surface of the seal 4 that contacts the convex portion 6 of the clamp claw 5, and 8 Is a screw, 9 is an air inlet, L is a width when contracted, and M is a width when expanded.

In FIGS. 1, 3 and 5, a tubular seal 4 which is expandable and contractible in a bellows shape is inserted into a scroll groove 3 of a scroll 2 of a scroll chuck 1, and a clamp claw 5 of the seal 4 is inserted. A reinforcing material 7 is adhered or coated 7 on the surface contacting the convex portion 6, both ends of the seal 4 are fixed with screws 8 or the like, and an air inlet 9 is provided in a part of the seal 4 to dispose the air. There is shown a scroll groove sealing device in a scroll chuck adapted to supply air from an inlet 9.

An air port 11 is provided in the main body 10 of the scroll of the scroll chuck 1. The air port 11 communicates with a seal portion air port 12 provided in the scroll 2, and further the seal portion is provided. The air port 12 communicates with the air inlet 9 of the seal 4.

[0023]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. In other words, since a tube-shaped seal that encloses air is inserted into the scroll groove of the scroll in the scroll chuck, the protrusions of the three clamp claws slide and the part that hits the seal is compressed and reduced. Although it fits in the space provided, the seal expands sequentially from the open part of the convex part of the clamp claw, and the width fills the scroll groove, which prevents the intrusion of cutting powder and dust from the outside. it can.

Further, when the seal is made expandable and contractible in a bellows shape, the expansion and contraction described above is more effectively exerted, and the seal can be operated with or without an air source.

In addition, when the reinforcing material is adhered or coated on the surface of the seal that contacts the convex portion of the clamp claw, the seal can be prevented from being damaged by sliding of the clamp claw.

Further, when both ends of the seal are fixed with screws or the like, it is possible to prevent the seal from being accidentally removed from the scroll groove.

Furthermore, when an air inlet is provided in a part of the seal and air is supplied from the air inlet, the air pressure ensures a tubular or bellows-shaped seal. By extending it in the width direction, it is possible to prevent cutting powder and dust from entering the scroll groove from the outside.

In addition, since the clamp claws can be easily disassembled, it is possible to easily attach and detach the seal and replace it due to wear, and when it is extended by air pressure, the operation can be smoothly performed without difficulty. Since it is not open, air consumption is extremely low, if the seal is made in a band with a certain radius, it can be cut and set according to the dimension, and the air pressure is applied to both sides in the seal expansion and contraction direction. Therefore, it is possible to eliminate the bias of the seal, and it is possible to obtain the effects of being inexpensive and economical because it is easy to manufacture.

[Brief description of drawings]

FIG. 1 is a central vertical cross-sectional view of a scroll chuck in which a scroll groove sealing device of a scroll chuck according to the present invention is implemented.

FIG. 2 is an enlarged end cross-sectional perspective view showing a main part of the seal used in the seal device of the present invention when the seal and the reinforcing material are reduced.

FIG. 3 is a front view showing a scroll chuck embodying the sealing device of the present invention.

FIG. 4 is an enlarged end cross-sectional perspective view showing one end of the seal and the reinforcing material used in the sealing device of the present invention when the seal and the reinforcing material are extended.

FIG. 5 is an enlarged vertical cross-sectional view of a main part of a scroll chuck in which the sealing device of the present invention is implemented.

[Explanation of symbols]

 1 Scroll Chuck 2 Scroll 3 Scroll Groove 4 Seal 5 Clamp Claw 6 Convex part 7 Reinforcement or coating 8 Screw 9 Air inlet 10 Chuck main body 11 Air port 12 Seal part air port L Width when contracted M Width when expanded

Claims (5)

[Scope of utility model registration request] 1. A scroll groove sealing device for a scroll chuck, wherein a tubular seal enclosing air is inserted into a scroll groove of a scroll of the scroll chuck. 2. The seal device for a scroll groove in a scroll chuck according to claim 1, wherein the seal is expandable and contractable in a bellows shape. 3. The surface of the seal that contacts the convex portion of the clamp claw,
3. A scroll groove sealing device for a scroll chuck according to claim 1, wherein a reinforcing material is adhered or coated. 4. The scroll groove seal device for a scroll chuck according to claim 1, 2 or 3, wherein both ends of the seal are fixed by screws or the like. 5. A scroll groove in a scroll chuck according to claim 1, wherein an air inlet is provided in a part of the seal, and the air is supplied from the air inlet. Sealing device.