CN211489639U

CN211489639U - Double-cutter-holder symmetrical machining lathe

Info

Publication number: CN211489639U
Application number: CN202020008770.1U
Authority: CN
Inventors: 孟林飞; 沈文渊; 杨丽娜; 王玉林; 王云梅
Original assignee: Yunnan Jing Ji Hu Zheng Machinery Co ltd
Current assignee: Yunnan Jing Ji Hu Zheng Machinery Co ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-09-15
Anticipated expiration: 2030-01-03

Abstract

A double-cutter-frame symmetrical processing lathe comprises a base (1), an upright post (2) arranged on the base, and a processing main body arranged on the base and positioned in front of the upright post; a sunken sink groove (2a) is formed in the top of the upright column, a main motor (3) is installed in the sink groove, a main shaft of the main motor penetrates through a side wall plate of the sink groove from the outer side, and a driving belt wheel (5) is installed at the outer end of the main shaft of the main motor; the machining main body comprises a machine tool spindle assembly (6), a machine tool tailstock (7), an upper tool rest and a lower tool rest, wherein the upper tool rest and the lower tool rest are respectively arranged above and below the machine tool spindle assembly. The utility model is used for processing slender axles work piece, can ensure the machining precision, easy operation, machining efficiency is high.

Description

Double-cutter-holder symmetrical machining lathe

Technical Field

The utility model belongs to the technical field of the machine tool structure, concretely relates to lathe suitable for carry out lathe work to the slender axles work piece that axiality and geometric dimension required precision are higher.

Background

In the traditional machining process, the slender shaft workpiece with higher requirements on coaxiality and geometric dimension precision needs to be machined by matching the follow rest and the center frame to meet the design requirements, but the manual alignment reference is needed in the machining process, a large amount of time needs to be consumed in the whole process, the machining efficiency is reduced, the precision requirement cannot be guaranteed, and the uniformity of the dimension and the geometric precision of parts in batches cannot be guaranteed.

Disclosure of Invention

The utility model aims at solving the deficiencies of the prior art, providing a double-tool-rest lathe for processing slender shaft workpieces, which can ensure the processing precision and has simple operation and high processing efficiency.

The purpose of the utility model is realized through the following technical scheme:

a double-cutter-frame symmetrical processing lathe comprises a base, an upright post arranged on the base, and a processing main body arranged on the base and positioned in front of the upright post;

a sunken sink groove is formed in the top of the upright post, a main motor is installed in the sink groove, a main shaft of the main motor penetrates through a side wall plate of the sink groove from the outer side, a motor auxiliary installation plate sleeved on the main shaft of the main motor is installed on the outer surface of the side wall plate, and a driving belt wheel is installed at the outer end of the main shaft of the main motor;

the machining main body comprises a machine tool spindle assembly, a machine tool tailstock, an upper tool rest and a lower tool rest, wherein the machine tool spindle assembly is arranged at one end of the base and is parallel to the main motor spindle, the machine tool tailstock is arranged at the other end of the base, is opposite to the machine tool spindle assembly and is coaxial with the assembly spindle, and the upper tool rest and the lower tool rest are respectively arranged above and below the machine tool spindle assembly; the upper tool rest and the lower tool rest are arranged in an up-and-down symmetrical mode by taking a machine tool main shaft as a center line and comprise an upper guide rail and a lower guide rail which are parallel to the machine tool main shaft, a horizontal screw rod arranged between the upper guide rail and the lower guide rail, a saddle of which the middle part is assembled on the horizontal screw rod and the upper side and the lower side of the bottom are respectively assembled on the upper guide rail and the lower guide rail, a vertical screw rod arranged on the saddle, a servo tool rest of which the bottom is sleeved on the vertical screw rod and; the outer ends of the two horizontal screw rods are respectively connected with a horizontal servo motor, and the rotating directions of the two horizontal servo motors are opposite; the outer ends of the two vertical screw rods are respectively connected with a vertical servo motor; the outer end of the assembly main shaft is sleeved with a driven belt wheel which is connected with the driving belt wheel and the driven belt wheel through a transmission belt; and the main motor, the horizontal servo motor and the vertical servo motor are all electrically connected with a machine tool control system.

Adopt the utility model discloses during processing slender axles work piece, only need to press from both sides the work piece level between lathe main shaft assembly and lathe tailstock, two horizontal servo motor of control system control start simultaneously, control two perpendicular servo motor and also start simultaneously, can control two upper and lower cutters and process the work piece simultaneously symmetrically, offset the cutting force each other, and can keep the axiality and the size precision of work piece processing, improve the processingquality of product, and improved machining efficiency by a wide margin. The utility model discloses the structure is ingenious reliable, convenient operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a right side view of the present invention.

Fig. 4 is a top view of the present invention;

fig. 5 is a sectional view a-a of fig. 2.

Detailed Description

As shown in fig. 1 to 5, the double-tool-holder symmetrical lathe of the present invention is a lathe particularly suitable for machining slender shaft workpieces. Comprises a base 1, a column 2 arranged on the base and a processing main body arranged on the base and positioned in front of the column.

A sinking groove 2a is formed in the top of the upright post 2, and a main motor 3 is installed in the sinking groove. The main motor is arranged in the sinking groove, so that the gravity center can be reduced, the stability of the stand column is improved, and the machine tool spindle assembly can be driven stably. The main shaft of the main motor penetrates out of the side wall plate of the sinking groove from the outer side, the outer surface of the side wall plate is provided with a motor auxiliary mounting plate 4 sleeved on the main shaft of the main motor, and the outer end of the main shaft of the main motor is provided with a driving belt wheel 5.

The machining main body comprises a machine tool spindle assembly 6 which is arranged at one end of the base and is parallel to the main motor spindle, a machine tool tailstock 7 which is arranged at the other end of the base, is opposite to the machine tool spindle assembly and is coaxial with the assembly spindle 6a, and an upper tool rest and a lower tool rest which are respectively arranged above and below the machine tool spindle assembly; the upper tool rest and the lower tool rest are arranged in an up-and-down symmetrical mode by taking a machine tool main shaft as a center line and comprise an upper guide rail 8, a lower guide rail 8, a horizontal screw rod 9, a saddle 10, a vertical screw rod 11, a servo tool rest 12 and a tool 13, wherein the upper guide rail and the lower guide rail are parallel to the machine tool main shaft; the outer ends of the two horizontal screw rods are respectively connected with a horizontal servo motor 14, and the rotating directions of the two horizontal servo motors are opposite; the outer ends of the two vertical screw rods 11 are respectively connected with a vertical servo motor 15; a driven belt wheel is sleeved at the outer end of the assembly main shaft 6a and is connected with the driving belt wheel 5 and the driven belt wheel through a transmission belt 6 b; the main motor 3, the horizontal servo motor 14 and the vertical servo motor 15 are all electrically connected with an NC control system of the machine tool.

The utility model discloses a lathe main shaft assembly 6 passes through mount pad fixed mounting on the preceding facade of stand 2. The tailstock 7 is fixedly arranged on a bottom plate 17, is arranged on the lathe bed in a matching mode through a gib 18 and a pressing plate 19 and can slide along the lathe bed, and the installation and sliding structure of the tailstock is in the prior art. The upper and lower guide rails 8 are both arranged on the front vertical surface of the upright post. The upper and lower guide rails 8, the horizontal screw rod 9, the saddle 10 and the connection structure between them can all adopt the prior art structure. The vertical screw rod 11, the sliding saddle 10, the servo tool rest 12 and the connection structure between the servo tool rest and the servo tool rest can adopt the prior art structure.

Adopt the utility model discloses during processing slender axles work piece, only need to press from both sides slender axles work piece 16 level and locate between lathe main shaft assembly 6 and lathe tailstock 7, main motor 3 starts, it rotates to drive lathe main shaft assembly, the work piece 16 that drives the centre gripping rotates, two horizontal servo motor 14 of control system control start simultaneously, and control two perpendicular servo motor 15 also start simultaneously, can control upper and lower two cutter 13 symmetry ground simultaneous processing work pieces, the cutting force is offset each other on upper and lower both sides, ensure that slender axles work piece can not be crooked, the axiality and the size precision of work piece processing have still been ensured, and improve machining efficiency by a wide margin. The iron fillings drop perpendicularly during equipment processing, can directly fall into the row who is located on the base and cut mouthful 1a, avoid gathering the bits. The whole machining process is controlled and finished by an NC system, the machining precision and the machining efficiency are high, and the uniformity of the size and the geometric precision of parts in batches can be ensured.

Claims

1. A double-cutter-frame symmetrical processing lathe is characterized by comprising a base (1), an upright post (2) arranged on the base, and a processing main body arranged on the base and positioned in front of the upright post;

a sunken sink groove (2a) is formed in the top of the upright post (2), a main motor (3) is installed in the sink groove, a main shaft of the main motor penetrates out of a side wall plate of the sink groove from the outer side, a motor auxiliary installation plate (4) sleeved on the main shaft of the main motor is installed on the outer surface of the side wall plate, and a driving belt pulley (5) is installed at the outer end of the main shaft of the main motor;

the machining main body comprises a machine tool spindle assembly (6) which is arranged at one end of the base and is parallel to the main motor spindle, a machine tool tailstock (7) which is arranged at the other end of the base, is opposite to the machine tool spindle assembly and is coaxial with the assembly spindle (6a), and an upper tool rest and a lower tool rest which are respectively arranged above and below the machine tool spindle assembly; the upper tool rest and the lower tool rest are arranged in an up-and-down symmetrical mode by taking a machine tool main shaft as a center line and comprise an upper guide rail (8) and a lower guide rail (9) which are parallel to the machine tool main shaft, a horizontal screw rod (9) arranged between the upper guide rail and the lower guide rail, a saddle (10) with the middle of the bottom assembled on the horizontal screw rod and the upper side and the lower side of the bottom assembled on the upper guide rail and the lower guide rail respectively, a vertical screw rod (11) arranged on the saddle, a servo tool rest (12) with the bottom sleeved on the vertical; the outer ends of the two horizontal screw rods are respectively connected with a horizontal servo motor (14), and the rotating directions of the two horizontal servo motors are opposite; the outer ends of the two vertical screw rods (11) are respectively connected with a vertical servo motor (15); a driven belt wheel is sleeved at the outer end of the assembly main shaft (6a) and is connected with the driving belt wheel (5) and the driven belt wheel through a transmission belt (6 b); the main motor (3), the horizontal servo motor (14) and the vertical servo motor (15) are all electrically connected with a machine tool control system.