A sliding telescopic tool bit

Abstract

A sliding telescopic tool bit, a ball screw is longitudinally installed on a fixed seat, the lower end of the ball screw is installed on the fixed seat through a ball bearing, the upper end of the ball screw penetrates the fixed seat and is installed on the fixed seat through an angular contact bearing, a ball nut is installed on the ball screw, the ball nut is connected with a sliding plate, and a tool holder seat is installed on the sliding plate. The sliding telescopic tool bit can drive the tool holder seat to move up and down through the ball screw, the tool bar can accurately and rapidly move up and down, and the wire drawing precision and efficiency of the roller are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wire drawing technology. Background Technology

[0002] Traditional roll drawing cutters use a planer-like drag-type cutter head, which cannot achieve precise up-and-down transmission and positioning, requiring multiple manual adjustments to the drawing depth. Switching to CNC requires repeated cutter raising and lowering, necessitating higher precision in the cutter head's movement, which is often unattainable. Summary of the Invention

[0003] To address the aforementioned problems with traditional roller drawing cutters, this invention provides a sliding telescopic cutter head.

[0004] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a sliding telescopic cutter head, wherein a ball screw 1 is longitudinally installed on a fixed base 5, the lower end of the ball screw 1 is installed on the fixed base 5 through a ball bearing 8, the upper end of the ball screw 1 passes through the fixed base 5 and is installed on the fixed base 5 through an angular contact bearing 4, a ball nut 6 is installed on the ball screw 1, the ball nut 6 is connected to a slide plate 7, and a cutter holder 9 is installed on the slide plate 7.

[0005] The outer ring of the angular contact bearing 4 is fixed to the step of the center hole of the fixed seat 5 by the pressure cap 3, and the inner ring of the angular contact bearing 4 is fixed to the shoulder of the ball screw 1 by the locking nut 2.

[0006] The sliding plate 7 is installed in sliding contact with the fixed base 5.

[0007] The tool holder 9 is fixed to the slide plate 7 by a keyway and bolts. The tool holder fixing seat 10 is installed on the tool holder 9, and the tool holder is tightened and fixed to the tool holder fixing seat 10 by fastening bolts 11.

[0008] This utility model discloses a sliding telescopic cutter head, which drives the cutter holder to move up and down through a roller screw. The cutter bar can move up and down accurately and at high speed, ensuring the precision and efficiency of the wire drawing process. Attached Figure Description

[0009] Figure 1 This is a front sectional view of the sliding telescopic cutter head of this utility model.

[0010] In the diagram: 1. Ball screw, 2. Locking nut, 3. Pressure cap, 4. Angular contact bearing, 5. Fixing seat, 6. Ball screw nut, 7. Slide plate, 8. Ball bearing, 9. Tool holder seat, 10. Tool holder fixing seat, 11. Fastening bolt. Detailed Implementation

[0011] The present invention provides a sliding telescopic cutter head structure as follows: Figure 1As shown, the fixed seat 5 is fixed to the machine tool arm, the ball screw 1 passes through the center hole of the fixed seat 5, the pressure cap 3 presses the outer ring of the angular contact bearing 4 onto the step of the center hole of the fixed seat 5, and the locking nut 2 presses the inner ring of the angular contact bearing 4 onto the shoulder of the ball screw 1 through the positioning sleeve, and rotates together with the ball screw 1; the ball bearing 8 restricts the lower end of the ball screw 1 in the center hole of the fixed seat 5, the ball nut 6 moves up and down with the rotation of the ball screw 1, the slide plate 7 slides in contact with the fixed seat 5 and is fixed to the ball nut 6 by bolts, and slides up and down with the movement of the ball nut 6; the tool holder seat 9 is fixed to the slide plate 7 by keyway and bolts; the tool holder fixing seat 10 is a two-piece structure used to clamp the wire drawing tool holder, passes through the center hole of the tool holder seat 9, and is tightened and fixed by fastening bolt 11.

[0012] In this invention, a servo motor drives the ball screw 1 to rotate. The rotation of the ball screw by the servo motor is a conventional structure, such as connecting the ball screw to the servo motor via a coupling, which will not be elaborated here. The tool holder can move accurately and quickly up and down via the slide plate 7 and the top tool holder 9, ensuring the precision and efficiency of the wire drawing process.

Claims

1. A sliding telescopic cutter head, characterized in that: A ball screw (1) is longitudinally mounted on a fixed seat (5). The lower end of the ball screw (1) is mounted on the fixed seat (5) via a ball bearing (8). The upper end of the ball screw (1) passes through the fixed seat (5) and is mounted on the fixed seat (5) via an angular contact bearing (4). A ball nut (6) is mounted on the ball screw (1). The ball nut (6) is connected to a slide plate (7). A tool holder (9) is mounted on the slide plate (7).

2. The sliding telescopic cutter head according to claim 1, characterized in that: The outer ring of the angular contact bearing (4) is fixed to the central hole step of the fixed seat (5) by the pressure cap (3), and the inner ring of the angular contact bearing (4) is fixed to the shoulder of the ball screw (1) by the locking nut (2).

3. The sliding telescopic cutter head according to claim 1, characterized in that: The sliding plate (7) is installed in sliding contact with the fixed base (5).

4. A sliding telescopic cutter head according to claim 1, characterized in that: The tool holder (9) is fixed to the slide plate (7) by keyway and bolts. The tool holder fixing seat (10) is installed on the tool holder (9). The tool holder is tightened and fixed to the tool holder fixing seat (10) by fastening bolt (11).

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