CN201154407Y - A CNC milling machine tool for spiral bevel gears - Google Patents

Abstract

The utility model discloses a spiral bevel gear numerical control gear milling machine; a transverse slipway (4) and a longitudinal slipway (10) are respectively arranged on the base (5) of the milling machine; a cutter head bearing box (3) is arranged at the transverse slipway (4); a cutter head drive roller (2) is arranged at the cutter head bearing box (3); a facing cutter (1) is eccentrically arranged in the cutter head drive roller (2); an upright post (9) is arranged at the longitudinal slipway (10); a vertical slipway (8) is arranged at the upright post (9); a workpiece drive box (7) is arranged at the vertical slipway (8); a workpiece shaft (6) is arranged in the workpiece drive box (7). The spiral bevel gear numerical control gear milling machine can improve the processing precision and the production efficiency of the spiral bevel gear and a hypoid gear as well as reduce the manufacturing cost.

Description

A CNC milling machine tool for spiral bevel gears

Technical field:

The utility model relates to the technical field of machine tool equipment for processing gears, in particular to a numerically controlled gear milling machine tool for spiral bevel gears.

Background technique:

During the 1970s and 1980s, many manufacturers in my country spent huge sums of money to import a large number of spiral bevel gear milling machines from the American Gleason Company. The models are mainly 116#, 118#, and 62#. At present, this type of machine tool has reached the replacement period, and the United States no longer produces this type of machine tool. At present, the spiral bevel gear milling machine tools produced in my country are mainly Y2250 and Y2280 gear milling machines produced by Tianjin No. 1 Machine Tool General Factory, which can be used for the processing of spiral bevel gears and hypoid gears, but the adjustment of machine tools is complicated, and the machining accuracy and production less efficient.

Utility model content:

In order to solve the above existing problems, the purpose of this utility model is to provide a spiral bevel gear CNC milling machine tool, which can improve the machining accuracy and production efficiency of spiral bevel gears and hypoid gears, and reduce manufacturing costs.

The utility model is realized by adopting the following technical solutions:

Described a kind of spiral bevel gear numerical control gear milling machine tool, comprises machine tool base, is respectively installed with horizontal slide table, vertical slide table on machine bed base, is installed on the horizontal slide table with cutter head support box, on the cutter head support box The cutter head drive roller is installed, and the milling cutter head is installed eccentrically in the cutter head drive roller; a column is installed on the longitudinal slide table, a vertical slide table is installed on the column, and a workpiece drive box is installed on the vertical slide table. The workpiece shaft is installed in the drive box.

At least two arc-shaped T-shaped slots are provided on the longitudinal sliding table.

The shaft protruding from the lower plane of the cutterhead driving drum is fitted in the hole provided on the upper plane of the cutterhead support box.

The horizontal sliding table and the vertical sliding table are numerical control sliding tables, and the longitudinal sliding tables may be numerical control sliding tables or hydraulic sliding tables.

The workpiece axis is driven by a servo motor, and its angular displacement is controlled by a numerical control system.

Owing to adopting above-mentioned technical scheme, the utility model obtains following effect:

The utility model simplifies the structure of the machine tool, has good rigidity and high processing efficiency, greatly reduces the sales price of the machine tool and the manufacturing cost of the gear, and can be widely used in the gear processing industry, especially in the processing of the active and passive bevel gears of the automobile rear axle.

The milling cutter head of the utility model is installed eccentrically in the cutter head drive roller, and the cutter head drive roller is installed in the cutter head support box. After the connecting bolts are loosened, the cutter head drive roller can rotate in the hole of the cutter head support box. The milling cutter disc is driven to rotate through gear reduction; the workpiece is installed on the workpiece shaft, and the workpiece shaft is installed in the workpiece drive box and can move up and down with the vertical slide table. The vertical sliding table is installed on the rotatable column of the base, and several arc-shaped T-shaped slots are arranged on the vertical sliding table, and the column is fixed with bolts. After the connecting bolts are loosened, the column and the workpiece box can rotate at a certain angle on the longitudinal slide table, so that the dedendum generatrix of the processed gear is located in the plane where the top of the milling cutter head is located. The utility model can mill teeth of spiral bevel gears and hypoid gears with a pitch cone angle of 0°-90°, and has the characteristics of high-efficiency and precise machining.

Description of drawings:

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

Detailed ways:

As shown in Fig. 1, the utility model mainly comprises cutter head drive cylinder 2, cutter head support box 3, workpiece drive box 7, column 9 and 3 numerical control slide tables 4,8,10. The milling cutterhead 1 is installed eccentrically on the cutterhead drive roller 2, powered by the motor and driven through gear reduction; the cutterhead drive roller 2 is installed on the cutterhead support box 3 through connecting bolts, and the lower plane of the cutterhead drive roller 2 protrudes The shaft sleeve is set in the hole provided on the upper plane of the cutter head support box 3, and the cutter head drive drum 2 can rotate in the hole of the cutter head support box 3 after loosening the connecting bolts to adjust the position of the center of rotation of the milling cutter head. The cutter head supporting box 3 is installed on the horizontal slide table 4, and the horizontal slide table 4 is installed on the machine tool base 5, and the horizontal position of the center of the milling cutter head can be adjusted by controlling the movement of the horizontal slide table 4 by the numerical control system. The workpiece is installed on the workpiece shaft 6, and the workpiece shaft 6 is installed in the workpiece drive box 7. The workpiece shaft 6 is driven by a servo motor, and its angular displacement is controlled by a numerical control system. The form of the transmission chain is: servo motor-worm-worm gear-workpiece shaft; The driving box 7 is installed on the vertical sliding table 8, and the workpiece shaft 6 can move up and down with the vertical sliding table in the workpiece driving box; On the platform 10, several arc-shaped T-shaped grooves are provided on the longitudinal sliding platform 10, and the columns are fixed by bolts. After loosening the connecting bolts, the column 9 can rotate a certain angle on the longitudinal slide 10 together with the workpiece drive box 7 and the vertical slide 8, so that the tooth root generatrix of the processed gear is located in the plane where the top of the milling cutter is located. To adjust the angle between the axis of the milling cutter and the axis of the workpiece, that is, the installation angle of the workpiece. The longitudinal sliding table 10 is installed on the machine tool base 5, which drives the workpiece to feed during the machining process, controls the displacement of the longitudinal sliding table 10, and can control the tooth depth of the gear to be processed. Horizontal slide table 4, vertical slide table 8 all are numerical control slide table, and longitudinal slide table 10 can be numerical control slide table or hydraulic pressure slide table. The workpiece shaft 6 is driven by a servo motor through a worm gear. The numerical control system controls the rotation of the horizontal sliding table 4, vertical sliding table 8, longitudinal sliding table 10 and workpiece axis 6. It can process spiral bevel gears and hypoid gears, and can process spiral bevel gears with a pitch angle of 0°～90°. Gears and hypoid gears are milled.

The cutter head driving drum 2 rotates in the hole of the cutter head support box 3 to adjust the position of the cutter head rotation center, effectively increasing the processing range of the machine tool.

The angle at which the column 9 rotates on the longitudinal slide 10 is equal to the root taper angle of the processed gear.

Claims (5)

1, a kind of spiral bevel gear numerical control gear milling machine tool, comprise machine tool base (5), it is characterized in that: on described machine tool base (5), horizontal slide table (4), longitudinal slide table (10) are installed respectively, A cutterhead supporting box (3) is installed on the transverse slide (4), and a cutterhead driving roller (2) is installed in the hole of the cutterhead supporting box (3), and the milling cutterhead (1) is eccentrically installed on the cutterhead In the driving drum (2); a column (9) is installed on the longitudinal slide (10), a vertical slide (8) is installed on the column (9), and a workpiece drive box is installed on the vertical slide (8) (7), the workpiece shaft (6) is installed in the workpiece drive box (7). 2. A CNC milling machine tool for spiral bevel gears according to claim 1, characterized in that: at least two arc-shaped T-shaped grooves are provided on the longitudinal sliding table (10). 3. A spiral bevel gear CNC milling machine tool according to claim 1, characterized in that: the protruding shaft of the lower plane of the cutter head drive drum (2) is fitted on the upper plane of the cutter head support box (3) in the opened hole. 4. A CNC milling machine tool for spiral bevel gears according to claim 1, characterized in that: the horizontal sliding table (4) and the vertical sliding table (8) are CNC sliding table, vertical sliding table (10) It is a CNC slide table or a hydraulic slide table. 5. A spiral bevel gear CNC milling machine tool according to claim 1, characterized in that: the workpiece shaft (6) is driven by a servo motor, and its angular displacement is controlled by a numerical control system.

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