CN205020912U - Milling unit from centering clamping - Google Patents

Abstract

The utility model discloses a self-centering clamping milling device, comprising a fixed cylinder (1), a rotating cylinder (2), a power mechanism (3), a transmission mechanism (4), a clamping mechanism (5), a bearing ( 6), feeding mechanism (7), cutter (8). Put the utility model on the outer cylindrical surface of the workpiece (9), take the workpiece (9) itself as the positioning reference, and connect the utility model with the workpiece (9) through the self-centering clamping mechanism (5) ) are fixed together, and then the rotating cylinder (2) drives the feed mechanism (7) and the cutter (8) to rotate around the workpiece (9) to realize milling of the workpiece (9). The utility model has a delicate and flexible structure and can be moved, and is suitable for processing various rod-column parts with a locatable outer surface, especially for rod-column parts that cannot be machined because they cannot be moved. The utility model takes the workpiece (9) itself as the positioning reference, and has high machining precision.

Description

A self-centering clamping milling device

technical field

The invention belongs to the field of rod-column parts processing, and in particular relates to a movable milling device with a self-centering clamping function using the rod-column part itself as a positioning reference.

Background technique

Machining the outer surface of rod-cylindrical parts is one of the most common machining tasks in the industrial field, and in most cases, turning is performed using a lathe to complete this machining task. With the development of industrial technology, the types of equipment and parts have become complex and diverse, including a large number of special equipment and parts, which also put forward higher requirements for the diversity of processing technology. Under the influence of the above background, lathe turning has been unable to meet the tasks of machining the outer surface of all cylinders.

For example: rod-column parts that have been fixed and cannot be moved, because the lathe cannot move, so the lathe cannot process such rod-column parts; cylindrical parts on parts with complex shapes, because it is difficult for the lathe to clamp such parts, Therefore, lathes cannot process such parts; larger rod-column parts cannot be processed by general lathes, and it is uneconomical to customize large-scale lathes.

A variety of special situations including the above three situations cannot be completed by lathes. Now a device that can meet the surface processing tasks of various rod-column parts is needed. At the same time, the device must have high economy and meet certain machining accuracy requirements.

Contents of the invention

In view of this, aiming at the deficiencies and gaps in the prior art, the technical problem to be solved by the present invention is to provide a self-centering clamping milling device, which takes the rod-column part itself as the positioning reference, and through the structure of the device itself Rotation realizes surface milling of rod-cylindrical parts.

In order to achieve the above object, the present invention is composed as follows: there is a hollow channel in the middle of the fixed cylinder (1), the power mechanism (3) and the clamping mechanism (5) are installed on the fixed cylinder (1), and the rotating cylinder (2) A knife feeding mechanism (7) is installed, and a cutter (8) is installed on the knife feeding mechanism (7), the fixed cylinder (1) is connected with the rotating cylinder (2) through a bearing (6), and the rotating cylinder (2) is connected with the power mechanism ( 3) Connected through the transmission mechanism (4). All the above-mentioned parts are centered on the hollow channel in the middle of the fixed cylinder (1), and are arranged in a ring form as a whole. The axes of the fixed cylinder (1), the rotating cylinder (2) and the bearing (6) are collinear, and the axes are parallel to the Y axis. The feeding mechanism (7) can control the cutting tool (8) to move along the diameter of the circular surface perpendicular to the Y axis and the center of the circle is on the axis of the fixed cylinder (1), or the cutting mechanism (7) can control the cutting tool (8) ) along the Y axis to perform feed movement.

The advantages of the present invention are as follows: the structure of the present invention is exquisite and flexible, there is no base, and it can be moved. It is suitable for milling operations on the surface of rod-column parts, and is especially suitable for rod-column parts that cannot be processed by machine tools because they cannot be moved. The rod-column parts are fixed If the device does not move, the processing operation can be carried out only by placing the device on the rod-shaped part for positioning and clamping. In the present invention, the rod-column part to be processed is used as the positioning reference, and self-centering clamping is realized through the clamping mechanism (5), so that the rotation axis of the main cutting movement of the present invention coincides with the axis of the rod-column part to be processed, and the machining accuracy is high , the dimensional accuracy of the processed surface (91) is high.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of a self-centering clamping milling device.

Fig. 2 is a schematic cross-sectional view of a self-centering clamping milling device.

Fig. 3 is a working schematic diagram of a self-centering clamping milling device.

In the figure, 1—fixed cylinder, 2—rotating cylinder, 3—power mechanism, 4—transmission mechanism, 5—clamping mechanism, 6—bearing, 7—feeding mechanism, 8—tool, 9—workpiece, 91 - Surfaces that have been machined.

detailed description

A typical specific implementation is as follows: as shown in Fig. 3, the workpiece (9) is fixed, and the present invention is set on the workpiece (9). The clamping mechanism (5) is started, and the clamping mechanism (5) fixes the fixing cylinder (1) and the workpiece (9) together. The power mechanism (3) is started, and the torque provided by the power mechanism (3) is transmitted to the rotary cylinder (2) through the transmission mechanism (4), so that the rotary cylinder (2) drives the knife feed mechanism installed on the rotary cylinder (2) (7) Rotate around the workpiece (9). During the rotating process of the rotary cylinder (2), the feed mechanism (7) controls the cutter (8) to perform the feed motion to complete the milling process of the workpiece (9). After the processing operation is finished, the feed mechanism (7) withdraws the knife, the power mechanism (3) stops rotating, and the clamping mechanism (5) stops clamping, and finally the present invention is taken off from the workpiece (9).

The working principle of the present invention is analyzed in detail as follows: the present invention has a ring layout as a whole, and there is a hollow channel in the middle for the workpiece (9) to pass through. The force direction of the clamping mechanism (5) points to the central axis of the fixed cylinder (1), so the clamping mechanism (5) has the function of self-centering clamping. In the clamped state, the fixed cylinder (1), the rotating cylinder ( 2), the axis of the bearing (6) coincides with the axis of the workpiece (9). Due to the above reasons, the rotation of the rotating cylinder (2) around its own axis is equivalent to the rotation around the axis of the workpiece (9), thus ensuring the high precision of the entire machining process. The feed mechanism (7) and the cutter (8) follow the rotating cylinder (2) and rotate around the axis of the workpiece (9). The rotary motion of the rotary cylinder (2) is the main movement of cutting, and the cutting mechanism (7) provides The tool (8) moves along the diameter on the circular surface perpendicular to the Y axis and the center of the circle is on the axis of the fixed cylinder (1), which can change the cutting depth, and the movement of the tool (8) along the Y axis can change the cutting length , the whole cutting process is similar to the milling process in which the workpiece is fixed and the tool rotates.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Apparently, those skilled in the art can make various changes and deformations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention also includes these modifications and variations.

Claims (3)

1. A self-centering clamping milling device, characterized in that: there is a hollow passage in the middle of the fixed cylinder (1), and a power mechanism (3) and a clamping mechanism (5) are installed on the fixed cylinder (1), A knife feeding mechanism (7) is installed on the rotating cylinder (2), and a knife (8) is installed on the knife feeding mechanism (7), and the fixed cylinder (1) is connected with the rotating cylinder (2) through a bearing (6) , the rotating cylinder (2) is connected with the power mechanism (3) through a transmission mechanism (4). All the above-mentioned components are centered on the hollow channel in the middle of the fixed cylinder (1), and are arranged in a ring shape as a whole. 2. A self-centering clamping milling device according to claim 1, characterized in that: the axes of the fixed cylinder (1), the rotating cylinder (2), and the bearing (6) are collinear, and the axes parallel to the Y axis. 3. A self-centering clamping milling device according to claim 1 or claim 2, characterized in that: the tool feeding mechanism (7) can control the tool (8) to be perpendicular to the Y axis and the center of the circle is at The circular surface on the axis of the fixed cylinder (1) performs the feeding motion along the diameter, or the feeding mechanism (7) can control the cutting tool (8) to perform the feeding motion along the Y axis.