Radial feeding device suitable for rotating shaft

Abstract

A radial feeding device suitable for a rotating shaft comprises a tailstock, a precise conductive sliding ring, a servo motor, a coupler, a main shaft, a bevel gear shaft, a bevel gear, a rotating disc, a ball screw, a nut seat, a sliding seat and a linear guide rail. According to the utility model, the transmission chain is short, the structure is compact, and the coaxial continuous rotating curved surface can be conveniently processed through spindle rotation and radial feeding numerical control interpolation.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machining, and in particular relates to a radial feeding device suitable for a rotating shaft. Background Art

[0002] CNC machine tools, also known as digitally controlled machine tools, are automated machine tools equipped with a program control system. The system has powerful logical processing capabilities and can interpret and execute programs specified by control codes or other symbolic instructions. The program is first decoded and represented in digital form, and then input into the CNC device through an information carrier. After rapid calculation processing, the CNC device will issue various control signals to accurately control every movement of the machine tool. According to the shape and size required by the drawing, the CNC machine tool can automatically complete the processing of parts to ensure its accuracy and consistency.

[0003] In the past, CNC feed mechanisms transmitted motion through multi-stage transmission pairs. There were many transmission pairs, complex forces, and large cumulative errors, which made it impossible to guarantee the position accuracy of the terminal moving pair and could not meet the requirements for coaxial continuous rotating surface processing during processing. Utility Model Content

[0004] Aiming at the problem of insufficient machining accuracy of existing coaxial continuous rotating curved surfaces, the utility model provides a radial feeding device suitable for a rotating shaft, and the specific scheme is:

[0005] A radial feed device suitable for a rotating shaft, comprising a tailstock 1, a precision conductive slip ring 2, a servo motor 3, a coupling 4, a spindle 5, a bevel gear shaft 6, a bevel gear 7, a turntable 8, a ball screw 9, a nut seat 10, a slide seat 11 and a linear guide rail 12;

[0006] The precision conductive slip ring 2 is fixed on the tailstock 1;

[0007] The servo motor 3 is connected to the bevel gear shaft 6 through the coupling 4;

[0008] The bevel gear shaft 6 passes through the bearing sleeve main shaft 5;

[0009] One end of the main shaft 5 is connected to the turntable 8;

[0010] A bevel gear is provided at the end of the bevel gear shaft 6, and the bevel gear is meshed with the bevel gear 7; the bevel gear 7 is sleeved on the ball screw 9, and the ball screw 9 is connected to the turntable 8 through a bearing;

[0011] The slide 11 is connected to the turntable 8 via a linear guide 12;

[0012] A nut seat 10 is arranged on the linear guide rail 12 , and the ball screw 9 is sleeved inside the nut seat 10 .

[0013] The utility model adopts servo motor drive, precision conductive slip ring to distribute power to servo motor, servo motor and main shaft are directly connected, the overall structure is simple and compact, servo motor and bevel gear shaft are connected by coupling, bevel gear shaft and bevel gear meshing adopt anti-backlash technology to eliminate gap, ball screw transmits radial motion, etc. Therefore, it can realize coaxial continuous rotation curved surface processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a radial feeding device suitable for a rotating shaft according to the utility model;

[0015] Figure 2 for Figure 1 A partial enlarged view of

[0016] Figure 3 for Figure 1 A partial cross-sectional view of .

[0017] Reference numerals: 1, tailstock; 2, precision conductive slip ring; 3, servo motor; 4, coupling; 5, spindle; 6, bevel gear shaft; 7, bevel gear; 8, turntable; 9, ball screw;

[0018] 10. Nut seat; 11. Linear guide rail; 12. Sliding seat. DETAILED DESCRIPTION

[0019] A radial feed device suitable for a rotating shaft, comprising a tailstock 1, a precision conductive slip ring 2, a servo motor 3, a coupling 4, a spindle 5, a bevel gear shaft 6, a bevel gear 7, a turntable 8, a ball screw 9, a nut seat 10, a slide seat 11 and a linear guide rail 12;

[0020] The precision conductive slip ring 2 is fixed on the tailstock 1;

[0021] The servo motor 3 is connected to the bevel gear shaft 6 through the coupling 4;

[0022] The bevel gear shaft 6 passes through the bearing sleeve main shaft 5;

[0023] One end of the main shaft 5 is connected to the turntable 8;

[0024] A bevel gear is provided at the end of the bevel gear shaft 6, and the bevel gear is meshed with the bevel gear 7; the bevel gear 7 is sleeved on the ball screw 9, and the ball screw 9 is connected to the turntable 8 through a bearing;

[0025] The slide 11 is connected to the turntable 8 via a linear guide 12;

[0026] The linear guide rail 12 is provided with a nut seat 10, and the ball screw 9 is sleeved inside the nut seat 10 and fixedly connected by screws.

[0027] Working principle: The precision conductive slip ring 2 distributes power to the servo motor 3, the servo motor 3 and the turntable 8 rotate together with the main shaft 5, the servo motor 3 drives the bevel gear shaft 6 to rotate, and drives the bevel gear 7 to drive the ball screw 9 to rotate, the ball screw 9 drives the nut seat 10 to translate radially, the nut seat 10 drives the slide 11 to move radially, and the boring bar installed on the slide 11 moves with the slide 11, realizing stable and accurate radial feeding of the tool.

Claims

1. A radial feed device suitable for a rotating shaft, characterized in that: It includes a tailstock (1), a precision conductive slip ring (2), a servo motor (3), a coupling (4), a spindle (5), a bevel gear shaft (6), a bevel gear (7), a turntable (8), a ball screw (9), a nut seat (10), a slide seat (11) and a linear guide rail (12); The precision conductive slip ring (2) is fixed on the tailstock (1); The servo motor (3) is connected to the bevel gear shaft (6) via a coupling (4); The bevel gear shaft (6) passes through the bearing sleeve main shaft (5); One end of the main shaft (5) is connected to the turntable (8); A bevel gear is arranged at the end of the bevel gear shaft (6), and the bevel gear is meshed with the bevel gear (7); the bevel gear (7) is sleeved on the ball screw (9), and the ball screw (9) is connected to the turntable (8) through a bearing; The slide seat (11) is connected to the turntable (8) via a linear guide rail (12); A nut seat (10) is arranged on the linear guide rail (12), and the ball screw (9) is sleeved inside the nut seat (10).

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