CN205342593U - Intact round bar turning anchor clamps of non - - Google Patents

Abstract

The utility model discloses a non-perfect round bar turning fixture, which includes a bar clip, the bar clip is a hollow cone cylinder, an external thread is processed at the tail of the bar clip, and an internal thread is processed at the top of the clamp sleeve , the external thread of the bar clamp and the external thread of the clamp sleeve form a threaded connection. Through the contact between the outer protrusion and the clamp sleeve of the bar clamp and the contact state between the inner protrusion and the bar, the inner protrusion and the bar are in stable contact, and it is especially suitable for clamping non-perfect round bars.

Description

A non-perfect round bar turning fixture

technical field

The utility model relates to a turning clamp for incomplete round bars, which is suitable for clamping incomplete bars.

Background technique

In manufacturing and processing, it is often encountered in the processing of irregular cylindrical bars, and the common fixtures cannot guarantee stable clamping, which brings inconvenience to the processing. Based on this, a non-perfect round bar turning fixture is designed, which realizes the effective clamping of irregular bars.

Utility model content

The technical problem to be solved by the utility model is to provide a non-perfect round bar turning fixture, through the contact between the outer protrusion of the bar clamp and the clamp sleeve and the contact state of the inner protrusion and the bar, the inner protrusion and the bar can Stable contact, especially suitable for clamping non-perfect round bars.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a non-perfect round bar turning fixture, which includes a bar clip, the bar clip is a hollow cone cylinder, and the tail of the bar clip is processed There are external threads, and the top of the clamp sleeve is processed with internal threads, and the external threads of the bar clamp and the external threads of the clamp sleeve form a threaded connection.

The large tapered end of the bar material clamp is divided into three units according to the section, each unit has two inner protrusions towards the inside of the circle, and one outer protrusion towards the outside of the circle.

The bar clip is made of elastic material, and the hollow cone cylinder can be deformed under the action of external force.

The inside of the clamp sleeve is processed with a tapered hole, the small tapered end of the tapered hole is processed with an internal thread, and the outer circle of the large tapered end is processed with a boss to be positioned when the clamp is clamped on the machine tool.

Both the external thread of the bar clamp and the internal thread of the clamp sleeve are right-handed.

The utility model has the following beneficial effects:

The utility model provides a non-perfect round bar turning fixture. By adopting the above structure, before turning, after the bar is sent into the bar clamp, the clamp cover is screwed into the external thread of the bar clamp. When the clamp sleeve is in contact and the inner projection does not clamp the bar, continue to screw the clamp sleeve in. Since the three projections of each unit at the large tapered end are unevenly stressed, each unit will wrap around the outer projection within a small range. Rotate, the large tapered end of the bar clamp produces micro-elastic deformation under the action of the clamp sleeve and the bar, and clamps the bar; finally, the clamp sleeve is clamped with the chuck of the machine tool to realize the stable clamping of the bar.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is a left view of the utility model.

Figure 4 is a sectional view of the utility model when in use.

In the figure: bar clamp 1, clamp cover 2, inner bump 101, outer bump 102, boss 201.

detailed description

Embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1-4, a non-perfect round bar turning fixture, it includes a bar clamp 1, the bar clamp 1 is a hollow cone cylinder, the tail of the bar clamp 1 is processed with external threads, the clamp The top of the sleeve 2 is processed with an internal thread, and the external thread of the bar clamp 1 and the external thread of the clamp sleeve 2 form a threaded connection.

Further, the large tapered end of the bar clamp 1 is divided into three units according to the section, each unit has two inner protrusions 101 towards the inside of the circle, and one outer protrusion 102 towards the outside of the circle.

Further, the bar clamp 1 is made of elastic material, and the hollow cone cylinder can be deformed under the action of external force.

Further, the inside of the clamp sleeve 2 is processed with a tapered hole, the small tapered end of the tapered hole is processed with an internal thread, and the outer circle of the large tapered end is processed with a boss 201 for positioning when clamping with the clamp on the machine tool.

Further, the external thread of the bar clamp 1 and the internal thread of the clamp sleeve 2 are both right-handed.

Concrete work process and working principle of the present utility model are:

Before turning, after the bar is fed into the bar clamp 1, the clamp cover 2 is screwed into the external thread of the bar clamp 1. When the outer protrusion 102 contacts the clamp cover 2, the inner protrusion 101 does not clamp the bar At this time, continue to screw the clamp cover 2 in, because the inner protrusion 101 and outer protrusion 102 of each unit at the large cone end are unevenly stressed, each unit will rotate around the outer protrusion 102 in a small range, and the bar clamp 1 large The tapered end is slightly elastically deformed under the action of the clamp sleeve 2 and the bar, and the bar is clamped; finally, the clamp sleeve is clamped with a clamp such as a chuck of the machine tool, realizing stable clamping of the bar.

The above-described embodiments are used to explain the utility model, rather than to limit the utility model. Within the spirit of the utility model and the protection scope of the claims, any modifications and changes made to the utility model all fall into the scope of the utility model. scope of protection.

Claims (5)

1. A non-perfect round bar turning fixture is characterized in that it includes a bar clamp (1), the bar clamp (1) is a hollow cone cylinder, and the tail of the bar clamp (1) is processed with External thread, the top of the clamp cover (2) is processed with internal thread, and the external thread of the bar clamp (1) and the external thread of the clamp cover (2) form a threaded connection. 2. A non-perfect round bar turning fixture according to claim 1, characterized in that: the large tapered end of the bar clamp (1) is divided into three units according to the section, and each unit has two The inner bump (101) has an outer bump (102) outside the circle. 3 . The non-perfect round bar turning fixture according to claim 1 , characterized in that: the bar clamp ( 1 ) is made of elastic material, and the hollow cone cylinder can be deformed under the action of external force. 4 . 4. A non-perfect round bar turning fixture according to claim 1, characterized in that: the inside of the fixture sleeve (2) is processed with a tapered hole, and the small tapered end of the tapered hole is processed with an internal thread, The outer circle of the large cone end is processed with a boss (201) for positioning when clamped with the clamp on the machine tool. 5 . The incomplete round bar turning fixture according to claim 1 , characterized in that: both the external thread of the bar clamp ( 1 ) and the internal thread of the clamp sleeve ( 2 ) are right-handed.