CN210848388U

CN210848388U - Pneumatic tensioning device

Info

Publication number: CN210848388U
Application number: CN201921712423.0U
Authority: CN
Inventors: 陈跃昆
Original assignee: Chongqing Taicang Technology Co ltd
Current assignee: Chongqing Taicang Technology Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-26
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a pneumatic tight device that rises, comprising a base plate, integrated into one piece is the perpendicular extension board on the bottom plate, be fixed with the diverter valve on the bottom plate, transversely be fixed with the cylinder at the middle part of perpendicular extension board, be fixed with the gas head on the cylinder, the diverter valve is connected with the cylinder, transversely be fixed with the dabber at the middle part of perpendicular extension board, be provided with the pull rod body in the pull rod through-hole, the pull rod body is fixed on the piston shaft of cylinder, still be provided with the lantern ring on the pull rod body, there is the taper sleeve at the border integrated into one piece of the lantern ring, the inboard face of taper sleeve pastes and presses at the dabber on the surface, the tip integrated into one piece of dabber has the bulge loop, be provided with the cover that rises between taper sleeve and bulge loop, be fixed with the annular groove that. The utility model discloses a structure sets up rationally, and it not only can be effectively and quick realization drum structure's location fixed, makes drum structure rise tightly fixed, prevents to appear rotating man-hour, is favorable to improving the precision of processing, and the suitability is strong and the practicality is good.

Description

Pneumatic tensioning device

Technical Field

The utility model belongs to the technical field of machining equipment, concretely relates to pneumatic tight device that rises.

Background

Need carry out the location operation in the course of working of drum structure, mainly through axostylus axostyle and lock nut among the conventional art, establish drum structure cover on the axostylus axostyle when using, then it is fixed through lock nut locking support pressing realization drum structure, and it is fixed though can realize the location, but in actual course of working, still appears the pivoted condition easily, influences the quality of processing, and suitability and practicality receive the restriction.

Disclosure of Invention

The utility model aims at providing a structure sets up reasonable and the suitability is strong pneumatic tight device that rises.

The technical scheme for realizing the purpose of the utility model is a pneumatic tensioning device, which comprises a bottom plate, a vertical support plate which is integrally formed on the bottom plate, a steering valve which is fixed on the bottom plate, a cylinder which is transversely fixed at the middle part of the vertical support plate, an air joint which is fixed on the cylinder and is connected with the cylinder, a mandrel which is transversely fixed at the middle part of the vertical support plate, a pull rod through hole which is fixed at the center of the mandrel, a pull rod body which is arranged in the pull rod through hole and is fixed on a piston shaft of the cylinder, a gasket and a nut which are arranged at the end part of the pull rod body, a lantern ring which is arranged between the gasket and the mandrel, a taper sleeve which is integrally formed at the edge of the lantern ring, the inner side surface of the taper sleeve is adhered and pressed on the surface of the mandrel, and a convex ring which is integrally formed at the end part of the mandrel, the convex ring is attached to and pressed on the side face of the vertical support plate, an inclined guide surface is arranged between the surface of the mandrel and the convex ring, an expansion sleeve is arranged between the taper sleeve and the convex ring, and an annular groove for sleeving a cylindrical workpiece is fixed on the outer annular surface of the expansion sleeve.

And tensioning inclined planes are respectively fixed at two ends of the inner ring of the tensioning sleeve and respectively attached to the taper sleeve and the inclined guide plane.

The inner ring of the taper sleeve is a plane, the outer ring surface of the taper sleeve is an abutting inclined surface, and the diameter of the outer ring of the taper sleeve is larger than the outer diameter of the expansion sleeve.

A return spring is fixed between the lantern ring and the end face of the mandrel, and the expansion sleeve is a metal sleeve and is uniformly provided with a buffer strip-shaped groove with an open end on the metal sleeve.

The utility model discloses has positive effect: the utility model discloses a structure sets up rationally, the simple operation, it not only can be effectively and quick realization drum structure's location fixed to be provided with the cover cooperation taper sleeve that rises, can make drum structure rise tightly fixed, thereby also can prevent to appear rotating man-hour, be favorable to improving the precision of processing, use reliable and stable, the suitability is strong and the practicality is good.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the following specific embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional structure diagram of the present invention.

Detailed Description

(example 1)

Fig. 1 and 2 show an embodiment of the present invention, wherein fig. 1 is a schematic structural diagram of the present invention; fig. 2 is a sectional structure diagram of the present invention.

Referring to fig. 1 and 2, a pneumatic tensioning device comprises a bottom plate 1, a vertical support plate 2 integrally formed on the bottom plate 1, a steering valve 3 fixed on the bottom plate, a cylinder 4 transversely fixed in the middle of the vertical support plate, an air joint 5 fixed on the cylinder, a mandrel 6 transversely fixed in the middle of the vertical support plate, a pull rod through hole 7 fixed in the center of the mandrel, a pull rod body 8 arranged in the pull rod through hole, the pull rod body fixed on a piston shaft of the cylinder, a gasket 9 and a nut 10 arranged at the end of the pull rod body, a collar 11 arranged on the pull rod body and between the gasket and the mandrel, a taper sleeve 12 integrally formed at the edge of the collar, a convex ring 13 integrally formed at the end of the mandrel, wherein the taper sleeve has an inner side surface adhered to the surface of the mandrel, the convex ring is attached to the side surface of the vertical support plate, an inclined guide surface 14 is arranged between the surface of the mandrel and the convex ring, an expansion sleeve 15 is arranged between the taper sleeve and the convex ring, and an annular groove 16 for sleeving a cylindrical workpiece is fixed on the outer annular surface of the expansion sleeve.

And tensioning inclined planes 17 are respectively fixed at two ends of the inner ring of the expansion sleeve and are respectively attached to the taper sleeve and the inclined guide surface.

A return spring 18 is fixed between the lantern ring and the end face of the mandrel, the expansion sleeve is a metal sleeve, and buffer strip-shaped grooves 19 with open ends are uniformly formed in the metal sleeve.

The utility model discloses a structure sets up rationally, the simple operation, it not only can be effectively and quick realization drum structure's location fixed to be provided with the cover cooperation taper sleeve that rises, can make drum structure rise tightly fixed, thereby also can prevent to appear rotating man-hour, be favorable to improving the precision of processing, use reliable and stable, the suitability is strong and the practicality is good.

The standard parts used in the present embodiment may be purchased directly from the market, and the non-standard structural components described in the specification and drawings may be obtained by processing without any doubt according to the common general knowledge in the art, and the connection manner of the respective parts is by the conventional means developed in the art, and the machines, parts and equipment are of the conventional type in the art, so that the detailed description thereof is omitted.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.

Claims

1. A pneumatic tensioning device comprises a bottom plate and a vertical support plate integrally formed on the bottom plate, wherein a steering valve is fixed on the bottom plate, a cylinder is transversely fixed in the middle of the vertical support plate, an air joint is fixed on the cylinder, and the steering valve is connected with the cylinder, and the pneumatic tensioning device is characterized in that: the cylinder is characterized in that a mandrel is transversely fixed in the middle of the vertical support plate, a pull rod through hole is fixed in the center of the mandrel, a pull rod body is arranged in the pull rod through hole, the pull rod body is fixed on a piston shaft of the cylinder, a gasket and a nut are arranged at the end part of the pull rod body, a lantern ring is further arranged on the pull rod body, the lantern ring is arranged between the gasket and the mandrel, a taper sleeve is integrally formed at the edge of the lantern ring, the inner side surface of the taper sleeve is attached to and pressed on the surface of the mandrel, a convex ring is integrally formed at the end part of the mandrel, the convex ring is attached to and pressed on the side surface of the vertical support plate, an inclined guide surface is arranged between the surface of the mandrel and the convex ring, an expansion sleeve is arranged between the taper sleeve and the convex ring, and an annular groove for sleeving a cylinder workpiece is fixed on the outer.

2. The pneumatic tensioning device according to claim 1, wherein: and tensioning inclined planes are respectively fixed at two ends of the inner ring of the tensioning sleeve and respectively attached to the taper sleeve and the inclined guide plane.

3. The pneumatic tensioning device according to claim 2, wherein: the inner ring of the taper sleeve is a plane, the outer ring surface of the taper sleeve is an abutting inclined surface, and the diameter of the outer ring of the taper sleeve is larger than the outer diameter of the expansion sleeve.

4. The pneumatic tensioning device according to claim 3, wherein: a return spring is fixed between the lantern ring and the end face of the mandrel, and the expansion sleeve is a metal sleeve and is uniformly provided with a buffer strip-shaped groove with an open end on the metal sleeve.