CN207668907U - A kind of fixture with taper hole workpiece for numerically-controlled machine tool - Google Patents

Abstract

The utility model discloses a fixture for a workpiece with a tapered hole for a numerically controlled machine tool, which comprises a clamping body, a workpiece, an external thread part, a self-locking cone surface and a keyway, and the right end of the clamping body is provided with a self-locking cone surface , the self-locking tapered surface is connected with the tapered hole of the workpiece, the base and the clamping body are provided with an inner hole for accommodating the cylinder push rod, the upper sleeve of the cylinder push rod is provided with a spring, and the cylinder push rod The right end of the rod is provided with a push block. The utility model is provided with a clamping body that is detachably connected with the base. When processing different workpieces, only the clamping body needs to be replaced, and the clamping body is convenient and quick to disassemble and has good practicability. The utility model uses keys to locate and fix the base and the clamping body, and uses the keys to transmit torque, which can avoid the problems of the clamping body rotating and falling off during the processing process and ensure the stability of the processing process.

Description

A Fixture for a Workpiece with a Tapered Hole Used in a CNC Machine Tool

technical field

The utility model relates to the technical field of machine tool clamps, in particular to a clamp for workpieces with tapered holes for numerically controlled machine tools.

Background technique

With the development of the machinery industry, the requirements for the shape of the parts vary widely. Different clamping methods must be used for workpieces of different shapes when they are processed on the machine tool, especially when encountering parts with special shapes, such as workpieces with tapered holes. Clamping, the positioning and clamping of parts is very troublesome. If the traditional three-jaw or four-jaw chuck is used for clamping, although positioning and clamping the inner hole can ensure the clamping effect, it is inconvenient to clamp and unload parts. And the same can not effectively improve production efficiency.

For this reason, in view of the above problems, we propose a fixture for workpieces with tapered holes for CNC machine tools to solve this problem.

Utility model content

The purpose of this utility model is to provide a fixture for a workpiece with a tapered hole for a numerically controlled machine tool, so as to solve the problem of inconvenient loading and unloading of a workpiece with a tapered hole in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a fixture for a workpiece with a tapered hole for a CNC machine tool, including a base, an inner hole, a cylinder push rod, a nut, a protruding ring, a spring, a push block, a key, a mounting Clamp body, workpiece, external thread, self-locking cone surface and keyway, the right end of the clamping body is provided with a self-locking cone surface, the self-locking cone surface is matched with the cone hole of the workpiece, the base and the clamping The body is provided with an inner hole for accommodating the cylinder push rod, the upper sleeve of the cylinder push rod is provided with a spring, and the right end of the cylinder push rod is provided with a push block.

Preferably, key grooves are provided on the base and the clamping body, and the keys are inserted into the key grooves to limit the base and the clamping body.

Preferably, the left end of the clamping body is provided with an external threaded part, the clamping body is sleeved on the base, and the external threaded part is connected to the nut through threads.

Preferably, a protruding ring is provided on the base, and the protruding ring is connected to the nut through threads.

Compared with the prior art, the utility model has the following beneficial effects:

1. The utility model is provided with a clamping body that is detachably connected to the base. When processing different workpieces, only the clamping body needs to be replaced, and the disassembly and assembly of the clamping body is convenient and quick, with good practicability .

2. The utility model uses keys to locate and fix the base and the clamping body, and uses the keys to transmit torque, which can avoid the problems of the clamping body rotating and falling off during the processing process, and ensure the stability of the processing process.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure of the clamping body of the present invention.

In the figure: 1. base, 2. inner hole, 3. cylinder push rod, 4. nut, 5. convex ring, 6. spring, 7. push block, 8. key, 9. clamping body, 10. workpiece, 11. External thread portion, 12. Self-locking tapered surface, 13. Keyway.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-2, the utility model provides a technical solution: a fixture for a workpiece with a tapered hole for a CNC machine tool, including a base 1, an inner hole 2, a cylinder push rod 3, a nut 4, a protruding ring 5, Spring 6, push block 7, key 8, clamping body 9, workpiece 10, external thread portion 11, self-locking cone 12 and keyway 13, the right end of clamping body 9 is provided with self-locking cone 12, self-locking cone 12 is connected with the taper hole of the workpiece 10, the base 1 and the clamping body 9 are all provided with an inner hole 2 for accommodating the cylinder push rod 3, the upper cover of the cylinder push rod 3 is provided with a spring 6, and the cylinder push rod 3 The right end is provided with push block 7.

In the above embodiment, specifically, the base 1 and the clamping body 9 are provided with a keyway 13, the key 8 is inserted into the keyway 13 to limit the base 1 and the clamping body 9, and the key 8 determines the freedom of rotation of the clamping body 9 Degree, and use the key 8 to transmit the torque, avoiding the problem of the clamping body rotating and falling off during the processing.

In the above embodiment, specifically, the left end of the clamping body 9 is provided with an external threaded part 11, the clamping body 9 is sleeved on the base 1, and the external threaded part 11 and the nut 4 are connected by threads, and the external threaded part 11 is used to The connection with the nut 4 enhances the stability of the clamping body 9 .

In the above embodiment, specifically, the base 1 is provided with a protruding ring 5, and the protruding ring 5 is connected to the nut 4 through threads, and the protruding ring 5 plays a role in positioning the nut 4, so as to facilitate the fixing of the nut 4 to the clamping body 9. .

working principle:

When using the clamp for a workpiece with a tapered hole for a CNC machine tool, at first, the nut 5 is threaded onto the protruding ring 5, the clamping body 9 is sleeved on the base 1, and the external threaded part 11 is installed on the On the nut 5, align the keyway 13 on the base 1 and the clamping body 9, use the key 8 to position the base 1 and the clamping body 9, and then start the installation and use of the workpiece 10, use the self-locking on the clamping body 9 Conical surface 12 fixes workpiece 10, and its self-locking principle is the prior art, and the utility model is no longer described in detail. When the workpiece 10 needs to be disassembled after processing, the cylinder is used to drive the cylinder push rod 3 to move, and the push block 7 is used to move the workpiece. 10 is ejected, that is, the disassembly of the workpiece 10 is completed. When it is necessary to process workpieces 10 with different taper holes, only the corresponding clamping body 9 needs to be replaced.

The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the records of the drawings. The specific connection methods of each part adopt mature bolts, rivets, welding , pasting and other conventional means, the parts all adopt conventional models in the prior art, and are no longer described in detail here.

In summary, the basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their effects.

Claims (1)

1. a kind of fixture with taper hole workpiece for numerically-controlled machine tool, it is characterised in that：Including pedestal, endoporus, cylinder push-rod, spiral shell The right end of mother, bulge loop, spring, pushing block, key, clamping body, workpiece, external thread part, the self-locking conical surface and keyway, the clamping body is equipped with The taper hole of the self-locking conical surface, the self-locking conical surface and workpiece is in mating connection, and accommodating cylinder is equipped on the pedestal and clamping body The endoporus of push rod is arranged with spring on the cylinder push-rod, and the right end of cylinder push-rod is equipped with pushing block, the pedestal and clamping Keyway is equipped on body, the key is inserted into keyway and is limited to pedestal and clamping body, and the left end of the clamping body is equipped with outer Threaded portion, the clamping body is sheathed on pedestal, and external thread part is connected with nut by screw thread, and the pedestal is equipped with convex Ring, the bulge loop are connected with nut by screw thread.