CN203556959U - Automatic positioning device for chamfering irregularly-shaped holes - Google Patents

Abstract

The utility model relates to an automatic positioning device for chamfering of special-shaped holes, which comprises a driving cylinder, a sliding base plate and a linear guide rail. The linear guide rail and the driving cylinder are arranged on the sliding base plate, and an axial slide plate is arranged on the linear guide rail, and the axial slide plate is connected with the piston of the driving cylinder. , the axial slide plate is connected to the mounting plate above it through a triangular bracket, the mounting plate is equipped with a radial drive cylinder, the driving cylinder piston is connected to the electric spindle, the electric spindle is set between the axial slide plate and the mounting plate, and its end is connected to the collet , the end of the collet is equipped with self-aligning bearings, the inner hole is equipped with a chamfering knife, the chamfering knife extends out of the collet, and the knife rod of the chamfering knife passes through the self-aligning bearing, spring collet and the inner hole of the electric spindle , Rolling bearings are installed at the end of the chamfering knife. The utility model is provided with a rolling bearing at the front end of the chamfering knife. By driving the cylinder to tighten the chamfering knife, the rolling bearing is close to the wall of the inner hole, and the inner hole is used as a mother shape, and the chamfering is cut by profiling, which is suitable for various special-shaped holes.

Description

An automatic positioning device for chamfering of special-shaped holes

technical field

The utility model belongs to the technical field of profiling inner hole chamfering equipment, in particular to an automatic positioning device for chamfering of special-shaped holes.

Background technique

In the process of processing the inner hole, chamfering the opening of the inner hole is a very critical process, which can remove burrs, sharpness, reduce internal stress, and increase the service life of the workpiece. The chamfering method of the round hole in the prior art It is to use a larger-sized drill to ream the hole to form a chamfer, but for the chamfering of special-shaped holes such as ellipse and waist-shaped holes, manual methods are often used, and the hole is polished with a file, which causes chamfering. The precision can only reach the level of manual processing, and if the use of high-precision CNC machine tools can meet the precision requirements, but the cost is high.

Therefore, using the profiling method, using the inner wall of the inner hole to be processed as the parent shape, the method of profiling the hole is proposed, but to apply this method to actual processing, it is necessary to solve the clamping of the workpiece and the Sampling of the parent shape.

Contents of the invention

The technical problem to be solved by the utility model is to provide an automatic positioning device for chamfering of special-shaped holes. Rolling bearings are arranged at the front end of the chamfering knife, and the chamfering knife is tightened by driving the cylinder so that the rolling bearings are close to the wall of the inner hole, and the inner hole is used as the mother hole. Shape, profiling cutting and chamfering, suitable for various special-shaped holes.

The technical solution adopted by the utility model to solve the technical problem is to provide an automatic positioning device for chamfering special-shaped holes, including a driving cylinder, a sliding base plate and a linear guide rail, the linear guide rail and a driving cylinder are installed on the sliding base plate, and the linear The guide rail and the driving cylinder piston move in the same direction. The linear guide rail is equipped with an axial slide plate, which is connected with the drive cylinder piston. The axial slide plate is connected to the mounting plate above it through a triangle bracket. There is a radial driving cylinder, the piston of the driving cylinder is connected to the electric spindle, and the electric spindle is arranged between the axial slide plate and the mounting plate, and its end is connected with a collet, and the end of the collet is equipped with a self-aligning bearing , The inner hole is equipped with a chamfering knife, the chamfering knife extends out of the collet, the knife rod of the chamfering knife passes through the inner hole of the self-aligning bearing, the spring collet and the electric spindle, and the end of the chamfering knife Install rolling bearings.

The rolling bearing is mounted on the end of the chamfering knife through a snap ring.

The blade of the chamfering knife faces upwards, and the blade is inclined to a desired chamfering angle.

Beneficial effect

The utility model is provided with a rolling bearing at the front end of the chamfering knife. By driving the cylinder to tighten the chamfering knife, the rolling bearing is close to the wall of the inner hole, and the inner hole is used as a mother shape, and the chamfering is cut by profiling, which is suitable for various special-shaped holes.

Description of drawings

Fig. 1 is the schematic diagram that the utility model is installed on the profiling chamfering machine.

Fig. 2 is a partial structural schematic diagram of the chamfering knife part of the utility model.

Fig. 3 is a schematic diagram of the three-dimensional structure of the utility model.

Fig. 4 is a schematic diagram of the three-dimensional structure of the chamfering knife part of the utility model.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

As shown in Figures 1 to 4, a special-shaped hole chamfering automatic positioning device includes a driving cylinder 1, a sliding base plate 2 and a linear guide rail 3, and the linear guide rail 3 and the driving cylinder 1 are installed on the sliding base plate 2, and the linear guide rail 3 is in the same direction as the piston of the drive cylinder 1, the linear guide rail 3 is equipped with an axial slide plate 4, the axial slide plate 4 is connected with the piston of the drive cylinder 1, and the axial slide plate 4 is connected and installed above it through the triangle bracket 5 plate 6, the mounting plate 6 is equipped with a radial driving cylinder 7, the piston of the driving cylinder 7 is connected to the electric spindle 9, the electric spindle 9 is arranged between the axial slide plate 4 and the mounting plate 6, and its end is connected to the spring Collet 14, self-aligning bearing 13 is equipped with at the end of described collet 14, and chamfering knife 12 is housed in inner hole, and described chamfering knife 12 stretches out collet 14, and the tool bar of described chamfering knife 12 Pass through the self-aligning bearing 13, the collet 14 and the inner hole of the electric spindle 9, and the end of the chamfering knife 12 is equipped with a rolling bearing 11.

The positioning device uses the rolling bearing 11 at the end of the chamfering knife 12 to be close to the hole wall of the inner hole of the workpiece 8 to be chamfered, and controls the chamfering knife 12 to cut the chamfering at the inner hole of the workpiece 8 to be chamfered in a profiling manner. .

The rolling bearing 11 is mounted on the end of the chamfering knife 12 through a snap ring 10 .

The blade of the chamfering knife 12 faces upwards, and the blade is inclined to a desired chamfering angle.

Claims (3)

1. An automatic positioning device for chamfering special-shaped holes, including a driving cylinder (1), a sliding base plate (2) and a linear guide rail (3), characterized in that the linear guide rail (3) and The driving cylinder (1), the linear guide rail (3) and the piston of the driving cylinder (1) move in the same direction, the linear guide rail (3) is equipped with an axial slide plate (4), and the axial slide plate (4) is connected with the driving cylinder (1). The cylinder (1) is connected to the piston, and the axial slide plate (4) is connected to the installation plate (6) above it through the triangle bracket (5), and the radial drive cylinder (7) is installed on the installation plate (6). The piston of the drive cylinder (7) is connected to the electric spindle (9), and the electric spindle (9) is arranged between the axial slide plate (4) and the mounting plate (6), and its end is connected to the collet (14). The end of the collet (14) is equipped with a self-aligning bearing (13), and the inner hole is equipped with a chamfering knife (12), and the chamfering knife (12) extends out of the collet (14), and the chamfering knife The knife rod of (12) is passed in the self-aligning bearing (13), the collet (14) and the inner hole of the electric spindle (9), and the rolling bearing (11) is installed at the end of the chamfering knife (12). 2. The automatic positioning device for chamfering of special-shaped holes according to claim 1, characterized in that, the rolling bearing (11) is mounted on the end of the chamfering knife (12) through a circlip (10). 3. The automatic positioning device for chamfering of special-shaped holes according to claim 1, characterized in that, the blade of the chamfering knife (12) faces upward, and the blade is inclined to a desired chamfering angle.

Images