CN202894803U - Pneumatic self-centering supporting and damping device - Google Patents

Abstract

The utility model discloses a pneumatic self-centering supporting and damping device comprising a base and a support fixed on the base. The base is mounted on a guide rail of a machine tool, the support is crescent, three fixed plates distant from one another by 120 degrees are arranged on one side end face of the crescent support, an air cylinder is arranged on each fixed plate, one ends of dampers are connected with piston rods of the air cylinders, and the other ends of the dampers are connected with damping pads. Workpieces are supported by the three damping pads, rigidity of the workpieces is improved during processing, and damping of the system is improved. Besides, the pneumatic self-centering supporting and damping device has the advantages of good vibration absorption and damping effect.

Description

The pneumatic support damping device of self-centering

Technical field

The utility model belongs to a kind of damping device, is specifically related to a kind of pneumatic support damping device of self-centering that is applicable to the long cylinder of machined thin-walled class workpiece.

Background technology

The long cylinder of thin-walled class diameter of work is large, wall is thin, and draw ratio is large, and rigidity is low, adds man-hour yielding, can't guarantee high machining accuracy, therefore, how to prevent that vibration and the distortion of workpiece when machined from just becoming the key that guarantees part processing precision.

The utility model content

The utility model provides a kind of pneumatic support damping device of self-centering that is applicable to the long tube kind part of machined thin-walled.

The technical solution of the utility model is: the pneumatic support damping device of a kind of self-centering, comprise base and the support that is fixed on the base, floor installation is on the guide rail of lathe, the profile of support is crescent, be provided with the fixed head of 120 ° of three each intervals in crescent one side end face of support, be respectively arranged with cylinder at each fixed head, an end of weakening body links to each other with the piston rod of cylinder, and the other end is connected with the weakening pad.

Described weakening body and function tetrafluoroethene is made, and the weakening pad is made of oil resistant rubber.

The pneumatic support damping device of the utility model self-centering has strengthened the rigidity of workpiece in process by the support of equally distributed three weakening pads to workpiece, and the damping that has increased system has good absorbing and weakening effect.

Description of drawings

Fig. 1 is the front view of the pneumatic support damping device of the utility model self-centering;

Wherein:

1 base, 2 supports, 3 fixed heads

4 cylinders, 5 weakening bodies, 6 weakening pads

7 workpiece.

The specific embodiment

Below, in conjunction with the accompanying drawings and embodiments the pneumatic support damping device of the utility model self-centering is described further:

As shown in Figure 1, the pneumatic support damping device of a kind of self-centering, comprise base 1 and the support 2 that is fixed on the base 1, base 1 is installed on the guide rail of lathe, the profile of support 2 is crescent, is provided with the fixed head 3 of 120 ° of three each intervals in crescent one side end face of support 2, is respectively arranged with cylinder 4 at each fixed head 3, one end of weakening body 5 links to each other with the piston rod of cylinder 4, and the other end is connected with weakening pad 6.

Described weakening body 5 usefulness tetrafluoroethene are made, and weakening pad 6 usefulness oil resistant rubbers are made.

The course of work of the present utility model:

Base 1 is movably arranged on the guide rail of lathe, make it can be along with guide rail is mobile together, the meniscate center of circle of support 2 and machine tool chief axis are on same straight line, one end of the long cylinder of thin-walled class workpiece 7 is fixed on the main shaft of lathe, press starting drive, the pneumatic support damping device of self-centering moves to the direction near workpiece 7 along guide rail, until the other end of workpiece 7 penetrates the meniscate inside of damping device support 2.Then, the cylinder 4 pushing piston bars on the fixed head 3 make piston-rod end promote weakening body 5, weakening pad 6 contacts and workpiece 7 is fixing with workpiece 7, and 6 pairs of workpiece 7 applied pressures of three weakening pads are equal, and it is zero making a concerted effort.

After finishing processing, cylinder 4 piston rod make weakening pad 6 leave workpiece, and damping device passes workpiece along guide rail.

The size that 6 pairs of workpiece 7 of weakening pad are exerted pressure can be regulated by pressure valve.

The utility model has strengthened the rigidity of workpiece in process by the support of equally distributed three weakening pads to workpiece, and the damping that has increased system has good absorbing and weakening effect.

Claims (2)

1. pneumatic support damping device of self-centering, comprise base (1) and be fixed on support (2) on the base (1), base (1) is installed on the guide rail of lathe, it is characterized in that: the profile of described support (2) is crescent, be provided with the fixed head (3) of 120 ° of three each intervals in crescent one side end face of support (2), be respectively arranged with cylinder (4) at each fixed head (3), one end of weakening body (5) links to each other with the piston rod of cylinder (4), and the other end is connected with weakening pad (6).

2. the pneumatic support damping device of self-centering according to claim 1 is characterized in that: described weakening body (5) is made of tetrafluoroethene, and weakening pad (6) is made of oil resistant rubber.

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