CN105965035A - Double-spindle synchronous lathe - Google Patents

Abstract

The invention discloses a double-spindle synchronous lathe which comprises a lathe stand, a lathe body, a first workbench, a second workbench, a first motor, a second motor, a third motor, a fourth motor, an X-axis lead screw, a Y-axis lead screw and a tool workbench, wherein the first motor, the second motor, the third motor, the fourth motor and the X-axis lead screw are arranged on the lathe body; the two ends of the X-axis lead screw are separately provided with the first workbench and the second workbench; the first motor is in driving connection to the first workbench; a three-claw self-centering chuck is arranged on the first workbench; the second motor is in driving connection to the second workbench; a spring chuck is arranged on the second workbench; the spring chuck and the three-claw self-centering chuck are oppositely arranged; the Y-axis lead screw is arranged on the X-axis lead screw; the tool workbench is arranged on the Y-axis lead screw; the third motor drives the tool workbench to move and back in the X-axis direction along the X-axis lead screw; and the fourth motor drives the tool workbench to move back and forth in the Y-axis direction along the Y-axis lead screw. The double-spindle synchronous lathe can avoid cutter back-off while processing a slender hose, so that vibration during processing is prevented, and coaxiality is kept.

Description

Double spindle synchronous lathe

technical field

The patent of the present invention relates to a double-spindle synchronous lathe.

Background technique

In today's mechanical processing industry, lathes are widely used. When processing slender parts, one end of the slender part is clamped by the chuck on the main shaft, and the other end is held by the thimble of the tailstock. In the process, parts often vibrate during processing, and because one end of the slender part is clamped by the chuck in the middle part, there will be insufficient rigidity, and it is easy to give up the knife during processing, so that it is easy to make the parts during processing. Scrap, not only the processing efficiency is low, but also the processing cost is high.

Contents of the invention

The object of the present invention is to provide a double-spindle synchronous lathe. The present invention solves the existing problems in the processing of slender parts. Concentricity.

The purpose of the present invention is achieved through the following technical solutions. The double-spindle synchronous lathe includes a bed foot and a bed set on the bed foot. It is characterized in that the double-spindle synchronous lathe also includes a first workbench and a second workbench. , the first, second, third and fourth motors, X-axis screw, Y-axis screw, tool table;

The bed is equipped with a first motor, a second motor, a third motor, a fourth motor, and an X-axis screw, and the two ends of the X-axis screw are respectively equipped with a first workbench and a second workbench;

The first motor drives and connects the first workbench, and a three-jaw self-centering chuck is set on the first workbench, and the first motor drives the first workbench and the three-jaw self-centering chuck to rotate;

The second motor drives and connects the second workbench, and the collet collet is arranged on the second workbench, and the collet collet is arranged opposite to the three-jaw self-centering chuck, and the second motor drives the second workbench and the collet collet to rotate;

The Y-axis screw is set on the X-axis screw, and the tool table is set on the Y-axis screw; the third motor drives the tool table to move back and forth along the X-axis screw in the X-axis direction, and the fourth motor drives the tool table along the X-axis. The Y-axis lead screw moves back and forth in the Y-axis direction.

Preferably, the second worktable is slidably arranged on the X-axis screw, and the first motor and the second motor move coaxially and at constant speed.

Compared with the prior art, the present invention has the following beneficial effects:

First, double-spindle synchronous lathe, its composition: including the bed foot, the bed, and the first workbench and the second workbench supported by the bed, the bed fixes the first motor, the second motor, and the third motor , The fourth motor, the first motor drive is connected to the first workbench, the second motor is driven to connect to the second workbench, the first workbench is provided with a three-jaw self-centering chuck, the second workbench is provided with a spring collet, and the second The workbench can slide on the lead screw, the third motor drives the tool workbench to move back and forth along the lead screw in the X-axis direction, the fourth motor drives the cutter workbench to move back and forth along the lead screw in the Y-axis direction, the first motor cooperates with the first The second motor clamps the slender parts for coaxial and constant speed movement, the second worktable clamps the slender parts and slides on the lead screw to enhance the rigidity of the slender parts during processing, the third motor and the fourth motor cooperate with the tool table Move along the lead screw for processing.

Second, the slender parts clamped by the first worktable driven by the first motor and the second worktable driven by the second motor can maintain coaxiality and move at a constant speed during processing, and the second worktable can be placed on the lead screw Sliding to increase rigidity during machining of slender parts. Cooperate with four motors when processing slender parts to avoid the phenomenon of tool gap and deflection during processing, and prevent vibration.

Thirdly, the present invention minimizes the error of processing slender parts, not only improves the processing efficiency, but also reduces the processing cost, and the processing of the parts with low rigidity and long size is more accurate.

Description of drawings

Fig. 1 is the overall structure schematic diagram of embodiment 1 of the present invention;

Fig. 2 is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

Among them: bed foot 1, bed 2, second working table 3, second motor 4, collet 5, slender parts 6, X-axis screw 7, tool table 8, Y-axis screw 9, three claws Self-centering chuck 10 , first motor 11 , first table 12 , third motor 13 , fourth motor 14 .

detailed description

The technical scheme of the invention will be further described below in conjunction with the accompanying drawings and through specific embodiments:

As shown in Figures 1 and 2, the dual-spindle synchronous lathe is composed of a bed foot 1, a bed 2, and a first workbench 11 and a second workbench 3 supported by the bed.

The bed fixes the first motor 11 , the second motor 4 , the third motor 13 and the fourth motor 14 . The first motor 11 is driven and connected to the first workbench 12 . The second motor 4 is driven and connected to the second workbench 3 . A three-jaw self-centering chuck 10 is arranged on the first workbench 12 . The second workbench 3 is provided with collets 5 , and the second workbench can slide on the X-axis screw 7 .

The third motor 13 drives the tool table 8 to move back and forth along the X-axis screw 7 in the direction of the X axis, and the fourth motor 14 drives the tool table 8 to move back and forth in the direction of the Y-axis screw 9 .

The first motor 11 cooperates with the second motor 4 to clamp the slender part 6 for coaxial and constant speed movement. At the same time, the second worktable 4 clamps the slender part 6 and can slide on the X-axis screw 7, the purpose is to enhance Rigidity of elongated parts 6 in machining.

The third motor 13 and the fourth motor 14 cooperate with the tool table 8 to move along the X-axis screw 7 and the Y-axis screw 9 to process the elongated part 6 .

Through the implementation of the present invention, the rigidity of the slender part 6 is enhanced to achieve coaxial rotation, avoiding deflection and tool give-up during processing of the slender part 6, preventing chattering during processing, and maintaining coaxiality.

In the actual operation process, one end of the slender part is clamped on the three-jaw centering chuck of the first worktable, and the other end is clamped on the spring collet of the second worktable, and the first and second motors are driven at the same time , keep coaxial and constant speed movement, the second workbench can slide on the lead screw, clamp and tighten the slender parts, drive the third motor and the fourth motor, and the two motors work together to drive the tool table to adjust the slender parts for processing.

In the actual operation process, the control method of the first motor is the same as above, the torque output of the first motor is input to the driven motor driver, and the torque control method of the second motor is used, and its torque is the same as that of the first motor. The output torque is the same. Through physical constraints between the loads of the first motor and the second motor, the rotational speeds and rotation angles of the two are synchronized. When using this method, it can avoid being affected by the mechanical error of the transmission system of the two motors.

The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (2)

1. pair main shaft synchronizes lathe, including the upper lathe bed (2) arranged of cabinet base (1) and cabinet base (1), it is characterized in that, described pair of main shaft synchronizes lathe and also includes the first workbench (12), the second workbench (3), first, second, third and fourth motor (11,4,13,14), X-axis leading screw (7), Y-axis leading screw (9), toolsmith's station (8)；

Arranging the first motor (11), the second motor (4), the 3rd motor (13), the 4th motor (14), X-axis leading screw (7) on lathe bed, the two ends of X-axis leading screw (7) are respectively provided with the first workbench (12), the second workbench (3)；

First motor (11) drive connection the first workbench (12), the first workbench (12) arranges three-jaw self-centering chuck (10), and the first motor (11) drives the first workbench (12) and three-jaw self-centering chuck (10) to rotate；

Second motor (4) drive connection the second workbench (3), collet (5) is set on the second workbench (3), collet (5) is oppositely arranged with three-jaw self-centering chuck (10), and the second motor (4) drives the second workbench (3) and collet (5) to rotate；

Y-axis leading screw (9) is set on X-axis leading screw (7), Y-axis leading screw (9) arranges toolsmith's station (8)；3rd motor (13) drives toolsmith's station (8) to move back and forth along X-axis leading screw (7) in X-direction, and the 4th motor (14) drives toolsmith's station (8) to move back and forth along Y-axis leading screw (9) in Y direction.

The most according to claim 1 pair of main shaft synchronizes lathe, it is characterized in that, described second workbench (3) is slidably arranged on X-axis leading screw (7), and the first motor (11) and the second motor (4) do coaxial, movement at the uniform velocity.