CN204819226U - Axle type centre gripping frock - Google Patents

Abstract

The utility model relates to the field of shaft clamping, in particular to a shaft clamping tool. It includes a main shaft, an electromagnetic coil, a suction cup, a locking ring and a cover. The main shaft includes a fixed disc and six elastic claws. The six elastic claws are installed in the middle of one side of the fixed disc in a circle shape. The outside and left side of the first elastic claw is a fixed disc, and the outside of the electromagnetic coil is equipped with a suction cup. The suction cup is circular and has a ring-shaped slot inside. At the front end, the casing covers the outside of the main shaft, electromagnetic coil, suction cup and locking ring. The advantage is that the design is simple and ingenious, the use is convenient and reliable, the cost is low, the maintenance is simple, and the production and processing efficiency is greatly improved.

Description

A shaft clamping tool

technical field

The utility model relates to the field of shaft clamping, in particular to a shaft clamping tool.

Background technique

At present, when machining shaft workpieces, fixed clamping cannot quickly and accurately position and clamp. The locking and loosening must be done manually, and the production and processing efficiency is low. Using some high-precision and high-efficiency auxiliary tools for processing will result in high costs. , complex equipment and difficult maintenance.

Contents of the invention

In order to solve the above problems, the utility model proposes a shaft clamping tool, which is simple and ingenious in design, convenient and reliable in use, low in cost, simple in maintenance, and greatly improves the production and processing efficiency.

In order to achieve the above-mentioned purpose of the invention, the utility model proposes the following technical solutions:

A shaft clamping tool, which includes a main shaft, an electromagnetic coil, a suction cup, a locking ring and a cover. The main shaft includes a fixed disc and six elastic claws. The six elastic claws are installed in the middle of one side of the fixed disc. Circle shape, the electromagnetic coil is installed on the outside of the six elastic claws and the left side is a fixed disc, the electromagnetic coil is equipped with a suction cup, the suction cup is circular and has a ring slot inside, and the ring slot is stuck on the outside of the electromagnetic coil , the locking ring is set on the front end of the elastic claw, and the cover is covered on the outside of the main shaft, the electromagnetic coil, the suction cup and the locking ring.

The main shaft includes a fixed disc and six elastic jaws, the six elastic jaws are installed in the middle of the fixed disc in a circle shape, a round hole is formed in the middle of the six elastic jaws, and the front ends of the six elastic jaws are all designed with oblique section.

There is a tapered surface inside the locking ring.

The tapered surface of the locking ring is pressed against the oblique surfaces of the six elastic claws.

The fixed disk of the main shaft and the six elastic jaws are integrally formed by casting.

The utility model has the advantages of simple and ingenious design, convenient and reliable use, low cost, simple maintenance and greatly improved production and processing efficiency. It is very convenient to suck the locking ring through the electromagnetic coil and the suction cup, and press down on the oblique surface of the elastic jaw through the tapered surface of the suction locking ring, and the elastic jaw will lock and lock the workpiece in the middle. Once the power is cut off, the elastic claws will press back the locking ring under the action of its own elasticity, and the workpiece can be taken out.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

Fig. 2 is a front view of the main disk of the present utility model.

Fig. 3 is a side view of the master disc of the present invention.

Detailed ways

In order to further illustrate the utility model, introduce below in conjunction with accompanying drawing of description:

Referring to accompanying drawing 1, a kind of shaft clamping tool, it comprises main shaft 1, electromagnetic coil 2, sucker 3, locking ring 4 and cover 5, and main shaft 1 comprises fixed disc 6 and six elastic jaws 7, six Two elastic claws 7 are contained in the middle of one side of the fixed disk 6 and are in the shape of a circle. The electromagnetic coil 2 is installed on the outside of the six elastic claws 7 and the left side is the fixed disk 6. The outside of the electromagnetic coil 2 is equipped with a suction cup 3, and the suction cup 3 It is circular and has a ring-shaped slot inside. The ring slot is stuck on the outside of the electromagnetic coil 2. The locking ring 4 is set on the front end of the elastic claw 7. The cover 5 covers the main shaft 1, the electromagnetic coil 2, the suction cup 3 and the The outside of locking ring 4.

The main shaft 1 includes a fixed disk 6 and six elastic claws 7, the six elastic claws 7 are installed in the middle of the fixed disk 6 in a circle shape, a round hole is formed in the middle of the six elastic claws 7, and the six elastic claws The front ends of the claws are all designed with beveled surfaces.

The inside of the locking ring 4 has a tapered surface.

The tapered surface of the locking ring 4 is pressed against the oblique surfaces of the six elastic claws 7 .

The fixed disc 6 and six elastic claws 7 of the main shaft 1 are integrally formed by casting.

When the utility model is used, the shaft at one end of the shaft workpiece 8 is inserted into the circular hole in the middle of the six elastic claws, the electromagnetic coil is energized to generate magnetic force, and the magnetic force is applied to the locking ring through the external suction cup, and the locking ring acts on the suction force. Moving downwards and inwards, the tapered surface of the locking ring will press down on the oblique surfaces of the six elastic claws, so that the elastic claws are drawn inward, so that the internal workpiece 8 is fixed firmly, and when it is necessary to loosen the workpiece 8 At this time, the electromagnetic coil is powered off, the suction disappears, and the locking ring moves outward under the reaction of the elastic force of the six elastic claws, the elastic claws expand outward, and the workpiece can be taken out, which is convenient and quick, and does not require manual locking or loosening. Open, simple structure, easy maintenance, low cost and high efficiency.

Claims (5)

1. an axle class clamping tooling, it is characterized in that it comprises main shaft, solenoid, sucker, clamp ring and case, main shaft comprises fixed disc and six elastic card claws, six elastic card claws are contained in the middle of fixed disc side in circle shape, solenoid is arranged on outside six elastic card claws and left side is fixed disc, outside solenoid, sucker is housed, sucker is circular and inside has annular slot, annular slot is stuck in the outside of solenoid, clamp ring is enclosed within elastic card claw front end, and case covers on the outside of main shaft, solenoid, sucker and clamp ring.

2. a kind of axle class clamping tooling according to claim 1, it is characterized in that described main shaft comprises fixed disc and six elastic card claws, six elastic card claws are that circle shape is arranged in the middle of fixed disc, and form circular hole in the middle of six elastic card claws, six elastic card claw front ends are all designed with scarf.

3. a kind of axle class clamping tooling according to claim 1, is characterized in that described clamp ring inside has taper surface.

4. a kind of axle class clamping tooling according to Claims 2 or 3, is characterized in that the taper surface of described clamp ring is pressed on the scarf of six elastic card claws.

5. a kind of axle class clamping tooling according to claim 1, is characterized in that the fixed disc of described main shaft and six elastic card claws are by casting integrated shaping.