阅读说明：本技术 一种平行双主轴车削中心 (Parallel double-spindle turning center ) 是由 陈江山 陈闯 杜少华 魏文龙 黄伟迪 张立新 魏勇胜 陈誓立 于 2021-10-27 设计创作，主要内容包括：本发明涉及机械加工技术领域,具体涉及一种平行双主轴车削中心；通过床身基座支撑,Z1轴直线导轨和Z2轴直线导管固定在床身基座上,床身基座上还安装有Z1轴传动丝杆副和Z2轴传动丝杆副,第一大托板根据Z1轴传动丝杆副的正转反转在Z1轴直线导轨上左右移动,第二大托板根据Z2轴传动丝杆副的正转和反转在Z2轴直线导轨上左右移动,进而分别带动水平支撑组件移动,水平支撑组件上固定安装加工组件,用于加工零件,限位组件用于固定零件；采用对称模块化设计,可根据实际加工需求自由扩充组线,能以较小的加工占地面积带来多工序多工艺的复合化加工能力,提高生产效率。(The invention relates to the technical field of machining, in particular to a parallel double-spindle turning center; the device is supported by a bed base, a Z1-axis linear guide rail and a Z2-axis linear guide pipe are fixed on the bed base, a Z1-axis transmission screw rod pair and a Z2-axis transmission screw rod pair are further installed on the bed base, a first large supporting plate moves left and right on a Z1-axis linear guide rail according to the positive rotation and the negative rotation of the Z1-axis transmission screw rod pair, a second large supporting plate moves left and right on a Z2-axis linear guide rail according to the positive rotation and the negative rotation of a Z2-axis transmission screw rod pair, and further drives a horizontal supporting assembly to move respectively, a processing assembly is fixedly installed on the horizontal supporting assembly and used for processing parts, and a limiting assembly is used for fixing the parts; the symmetrical modular design is adopted, the wire grouping can be freely expanded according to the actual processing requirement, the composite processing capacity of multiple processes and multiple technologies can be brought by a small processing floor area, and the production efficiency is improved.)

1. A parallel double-spindle turning center is characterized by comprising a lathe bed base, a Z1-axis linear guide rail, a Z2-axis linear guide rail, a Z1-axis transmission screw rod pair, a Z2-axis transmission screw rod pair, a first large supporting plate, a second large supporting plate, a horizontal supporting assembly, a machining assembly and a limiting assembly;

the Z1 shaft linear guide rail is fixedly connected with the lathe bed base and is positioned on one side of the lathe bed base, the Z2 shaft linear guide rail is fixedly connected with the lathe bed base and is positioned on the lathe bed base far away from the Z1 shaft linear guide rail, the Z1 shaft transmission screw rod pair is rotatably connected with the lathe bed base and is positioned on one side of the lathe bed base close to the Z1 shaft linear guide rail, the Z2 shaft transmission screw rod pair is rotatably connected with the lathe bed base and is positioned on one side of the lathe bed base close to the Z2 shaft linear guide rail, the first large supporting plate is rotatably connected with the Z1 shaft transmission screw rod pair and is positioned on one side of the Z1 shaft transmission screw rod pair close to the Z1 shaft linear guide rail, the second large supporting plate is rotatably connected with the Z2 shaft transmission screw rod pair and is positioned on one side of the Z2 shaft transmission screw rod pair close to the Z2 shaft linear guide rail, and the horizontal supporting component is fixedly connected with the first large supporting plate, the processing assembly is fixedly connected with the horizontal supporting assembly, and the limiting assembly is fixedly connected with the lathe bed base.

2. The parallel dual spindle turning center of claim 1,

the horizontal support assembly comprises an X1-axis linear guide rail and an X2-axis linear guide rail, and the X1-axis linear guide rail is fixedly connected with the first large supporting plate and is positioned on one side, far away from the bed base, of the first large supporting plate; the X2-axis linear guide rail is fixedly connected with the second large supporting plate and is positioned on one side, far away from the bed base, of the second large supporting plate.

3. The parallel dual spindle turning center of claim 2,

the horizontal support assembly further comprises an X1-axis transmission screw rod pair and an X2-axis transmission screw rod pair, and the X1-axis transmission screw rod pair is rotatably connected with the first large supporting plate and is positioned on one side of the first large supporting plate, which is far away from the X1-axis linear guide rail; the X2 shaft transmission screw rod pair is rotatably connected with the second large supporting plate and is positioned on one side of the second large supporting plate, which is far away from the X2 shaft linear guide rail.

4. The parallel dual spindle turning center of claim 3,

the horizontal support assembly further comprises a first small supporting plate and a second small supporting plate, the first small supporting plate is rotatably connected with the X1 shaft transmission screw rod pair and is positioned on one side, close to the X1 shaft linear guide rail, of the X1 shaft transmission screw rod pair; the second small supporting plate is rotatably connected with the X2 shaft transmission screw rod pair and is positioned on one side of the X2 shaft output transmission screw rod pair close to the X2 shaft linear guide rail.

5. The parallel dual spindle turning center of claim 4,

the machining assembly comprises a first power tool turret and a second power tool turret, and the first power tool turret is fixedly connected with the first small supporting plate and is positioned on one side, far away from the bed base, of the first small supporting plate; and the second power tool turret is fixedly connected with the second small supporting plate and is positioned on one side of the second small supporting plate far away from the bed body base.

6. The parallel dual spindle turning center of claim 5,

the limiting assembly comprises a first main shaft, a second main shaft and a transmission component, and the first main shaft is fixedly connected with the lathe bed base and is positioned on one side, close to the first power tool turret, of the lathe bed base; the second main shaft is fixedly connected with the bed body base and is positioned on one side of the bed body close to the second power tool turret; the transmission component is fixedly connected with the lathe bed base.

7. The parallel dual spindle turning center of claim 6,

the limiting assembly comprises a first clamp and a second clamp, the first clamp is fixedly connected with the first spindle and is positioned at the front end of the first spindle; the second clamp is fixedly connected with the second main shaft and is positioned at the front end of the second main shaft.

Technical Field

The invention relates to the technical field of machining, in particular to a parallel double-spindle turning center.

Background

The turning center takes a lathe as a basic body, and functions of power milling, drilling and boring and an auxiliary main shaft are further added on the basis of the turning center, so that the working procedures of secondary and tertiary machining of a turning piece are completed on the turning center once. The turning center can be divided into a comb type and a turret type according to the turret type.

The turret type turning center is characterized in that a power turret is arranged on a workbench and can support various machining actions of an end face and a radial direction, the end face and the radial eccentricity of a turned part and various machining actions are completed through the lifting (Y-axis function) of the power turret, one working procedure is completed, and the turret is rotated to replace another cutter for machining, so that the complicated machining steps are completed.

However, the turret occupies a relatively large space, so that the conventional turret type turning center is a single turret type turning center, and the machining efficiency is relatively low.

Disclosure of Invention

The invention aims to provide a parallel double-spindle turning center, and aims to solve the technical problem that a conventional turret type turning center is a single-turret type turning center and is low in machining efficiency because a turret in the prior art occupies a large space.

In order to achieve the purpose, the parallel double-spindle turning center comprises a lathe bed base, a Z1-axis linear guide rail, a Z2-axis linear guide rail, a Z1-axis transmission screw rod pair, a Z2-axis transmission screw rod pair, a first large supporting plate, a second large supporting plate, a horizontal supporting assembly, a machining assembly and a limiting assembly;

the Z1 shaft linear guide rail is fixedly connected with the lathe bed base and is positioned on one side of the lathe bed base, the Z2 shaft linear guide rail is fixedly connected with the lathe bed base and is positioned on the lathe bed base far away from the Z1 shaft linear guide rail, the Z1 shaft transmission screw rod pair is rotatably connected with the lathe bed base and is positioned on one side of the lathe bed base close to the Z1 shaft linear guide rail, the Z2 shaft transmission screw rod pair is rotatably connected with the lathe bed base and is positioned on one side of the lathe bed base close to the Z2 shaft linear guide rail, the first large supporting plate is rotatably connected with the Z1 shaft transmission screw rod pair and is positioned on one side of the Z1 shaft transmission screw rod pair close to the Z1 shaft linear guide rail, the second large supporting plate is rotatably connected with the Z2 shaft transmission screw rod pair and is positioned on one side of the Z2 shaft transmission screw rod pair close to the Z2 shaft linear guide rail, and the horizontal supporting component is fixedly connected with the first large supporting plate, the processing assembly is fixedly connected with the horizontal supporting assembly, and the limiting assembly is fixedly connected with the lathe bed base.

The lathe bed base is used for supporting, the Z1 shaft linear guide rail and the Z2 shaft linear guide rail are respectively fixed on the lathe bed base through bolts and pressing blocks, the lathe bed base is further provided with the Z1 shaft transmission screw rod pair and the Z2 shaft transmission screw rod pair through bolts and taper pins and is driven to rotate by a servo motor, the first large supporting plate is connected on the Z1 shaft transmission screw rod pair in a threaded fit manner and is connected with the Z1 shaft linear guide rail in a sliding manner through bolts and pressing blocks, the Z1 shaft linear guide rail is moved left and right according to the positive rotation and the negative rotation of the Z1 shaft transmission screw rod pair, the second large supporting plate is connected on the Z2 shaft transmission screw rod pair in a threaded fit manner and is connected with the Z2 shaft linear guide rail in a sliding manner through positive rotation bolts and pressing blocks, and the Z2 shaft transmission screw rod pair is moved left and right on the Z2 shaft linear guide rail according to the positive rotation and the negative rotation of the Z2 shaft transmission screw rod pair, and then drive respectively horizontal supporting component removes, fixed mounting is gone up to horizontal supporting component the processing subassembly for the processing part, spacing subassembly is used for fixed part.

The horizontal support assembly comprises an X1-axis linear guide rail and an X2-axis linear guide rail, and the X1-axis linear guide rail is fixedly connected with the first large supporting plate and is positioned on one side, far away from the bed base, of the first large supporting plate; the X2-axis linear guide rail is fixedly connected with the second large supporting plate and is positioned on one side, far away from the bed base, of the second large supporting plate.

The X1-axis linear guide rail and the X2-axis linear guide rail are fixed on the first large supporting plate and the second large supporting plate through bolts and pressing blocks respectively.

The horizontal support assembly further comprises an X1-axis transmission screw rod pair and an X2-axis transmission screw rod pair, and the X1-axis transmission screw rod pair is rotatably connected with the first large supporting plate and is positioned on one side, away from the X1-axis linear guide rail, of the first large supporting plate; the X2 shaft transmission screw rod pair is rotatably connected with the second large supporting plate and is positioned on one side of the second large supporting plate, which is far away from the X2 shaft linear guide rail.

The X1 shaft transmission lead screw pair and the X2 shaft transmission lead screw pair are respectively installed on the first large supporting plate and the second large supporting plate through bolts and taper pins and are driven to rotate by a servo motor.

The horizontal support assembly further comprises a first small supporting plate and a second small supporting plate, wherein the first small supporting plate is rotatably connected with the X1 shaft transmission screw rod pair and is positioned on one side, close to the X1 shaft linear guide rail, of the X1 shaft transmission screw rod pair; the second small supporting plate is rotatably connected with the X2 shaft transmission screw rod pair and is positioned on one side of the X2 shaft output transmission screw rod pair close to the X2 shaft linear guide rail.

The first small supporting plate and the second small supporting plate are respectively installed on the X1-axis linear guide rail and the X2-axis linear guide rail in a sliding mode through bolts and pressing blocks; the first small supporting plate and the second small supporting plate are respectively and rotatably connected with the X1 shaft transmission lead screw pair and the X2 shaft transmission lead screw pair through bolts and taper pins and move back and forth along with the positive rotation and the negative rotation of the lead screw pair.

The machining assembly comprises a first power tool turret and a second power tool turret, and the first power tool turret is fixedly connected with the first small supporting plate and is positioned on one side, far away from the bed base, of the first small supporting plate; and the second power tool turret is fixedly connected with the second small supporting plate and is positioned on one side of the second small supporting plate far away from the bed body base.

The first small supporting plate and the second small supporting plate are respectively fixed with the first power tool turret and the second power tool turret, and the power tool turret is provided with a tool for processing.

The limiting assembly comprises a first main shaft, a second main shaft and a transmission component, wherein the first main shaft is fixedly connected with the lathe bed base and is positioned on one side, close to the first power turret, of the lathe bed base; the second main shaft is fixedly connected with the bed body base and is positioned on one side of the bed body close to the second power tool turret; the transmission component is fixedly connected with the lathe bed base.

The first main shaft and the second main shaft are respectively fixed on the lathe bed base through bolts and taper pins.

The limiting assembly comprises a first clamp and a second clamp, the first clamp is fixedly connected with the first spindle and is positioned at the front end of the first spindle; the second clamp is fixedly connected with the second main shaft and is positioned at the front end of the second main shaft.

The first clamp and the second clamp are respectively fixed at the front ends of the first main shaft and the second main shaft through bolts and used for clamping a machined part.

The parallel double-spindle turning center is supported by the lathe bed base, the Z1-axis linear guide rail and the Z2-axis linear guide pipe are respectively fixed on the lathe bed base through bolts and pressing blocks, the lathe bed base is also provided with the Z1-axis transmission screw rod pair and the Z2-axis transmission screw rod pair through bolts and taper pins and is driven to rotate by a servo motor, the first large supporting plate is in threaded fit connection with the Z1-axis transmission screw rod pair and is in sliding connection with the Z1-axis linear guide rail through bolts and pressing blocks so as to move left and right on the Z1-axis linear guide rail according to the positive rotation and the negative rotation of the Z1-axis transmission screw rod pair, the second large supporting plate is in threaded fit connection with the Z2-axis transmission screw rod pair and is in sliding connection with the Z2-axis linear guide rail through bolts and pressing blocks so as to move left and right on the Z2-axis linear guide rail according to the positive rotation and the negative rotation of the Z2-axis transmission screw rod pair, the horizontal supporting components are respectively driven to move, the processing components are fixedly mounted on the horizontal supporting components and used for processing parts, and the limiting components are used for fixing parts; the symmetrical modular design is adopted, the wire grouping can be freely expanded according to the actual processing requirement, the compact floor area is possessed, the multi-process and multi-technology combined processing capacity can be brought by the small processing floor area, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a parallel double-spindle turning center of the present invention.

Fig. 2 is a schematic structural view of the spacing assembly of the present invention.

Fig. 3 is an enlarged view of fig. 2 a of the present invention.

Fig. 4 is an enlarged view of the invention at B of fig. 2.

1-lathe bed base, 2-Z1 axis linear guide rail, 3-Z2 axis linear guide rail, 4-Z1 axis transmission screw rod pair, 5-Z2 axis transmission screw rod pair, 6-first large supporting plate, 7-second large supporting plate, 10-horizontal supporting component, 11-X1 axis linear guide rail, 12-X2 axis linear guide rail, 13-X1 axis transmission screw rod pair, 14-X2 axis transmission screw rod pair, 15-first small supporting plate, 16-second small supporting plate, 20-processing component, 21-first power tool tower, 22-second power tool tower, 30-limiting component, 31-first main shaft, 32-second main shaft, 33-transmission component, 34-first clamp, 35-second clamp, 100-parallel double-main shaft turning center, 331-first main motor, 332-second main motor, 333-first belt pair, 334-second belt pair.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 4, the present invention provides a parallel dual spindle turning center 100, which includes a lathe bed base 1, a Z1 axis linear guide 2, a Z2 axis linear guide 3, a Z1 axis transmission screw pair 4, a Z2 axis transmission screw pair 5, a first large pallet 6, a second large pallet 7, a horizontal support assembly 10, a processing assembly 20 and a limit assembly 30;

the Z1 axis linear guide rail 2 is fixedly connected with the lathe bed base 1 and is positioned on one side of the lathe bed base 1, the Z2 axis linear guide rail 3 is fixedly connected with the lathe bed base 1 and is positioned on the lathe bed base 1 far away from the Z1 axis linear guide rail 2, the Z1 axis transmission screw pair 4 is rotatably connected with the lathe bed base 1 and is positioned on one side of the lathe bed base 1 close to the Z1 axis linear guide rail 2, the Z2 axis transmission screw pair 5 is rotatably connected with the lathe bed base 1 and is positioned on one side of the lathe bed base 1 close to the Z2 axis linear guide rail 3, the first large supporting plate 6 is rotatably connected with the Z1 axis transmission screw pair 4 and is positioned on one side of the Z1 axis transmission screw pair 4 close to the Z1 axis linear guide rail 2, the second large supporting plate 7 is rotatably connected with the Z2 transmission screw pair and is positioned on one side of the Z2 transmission screw pair close to the Z2 axis linear guide rail 3, the horizontal supporting assembly 10 is fixedly connected with the first large supporting plate 6, the machining assembly 20 is fixedly connected with the horizontal supporting assembly 10, and the limiting assembly 30 is fixedly connected with the lathe bed base 1.

In this embodiment, the bed base 1 is used for supporting, the Z1-axis linear guide 2 and the Z2-axis linear guide 3 are respectively fixed on two sides of the bed base 1 relatively through bolts and pressing blocks, the Z1-axis transmission lead screw pair and the Z2-axis transmission lead screw pair are further fixed on the bed base 1 through bolts and taper pins, wherein the Z1-axis transmission lead screw pair 4 is close to the Z1-axis linear guide 2, and the Z2-axis transmission lead screw pair 5 is close to the Z2-axis linear guide 3; the first large supporting plate 6 and the second large supporting plate 7 are respectively in threaded fit connection with the Z1 shaft transmission lead screw pair and the Z2 shaft transmission lead screw pair through bolts and taper pins, the first large supporting plate 6 and the second large supporting plate 7 are also respectively connected with the Z1 shaft linear guide rail 2 and the Z2 shaft linear guide rail 3 through bolts and pressing blocks, a servo motor respectively drives the Z1 shaft transmission lead screw pair 4 and the Z2 shaft transmission lead screw pair 5 to rotate, further, the first large supporting plate 6 moves left and right on the Z1 shaft linear guide rail 2 according to the positive rotation and the reverse rotation of the Z1 shaft transmission lead screw pair 4, and the second large supporting plate 7 moves left and right on the Z2 shaft linear guide rail 3 according to the positive rotation and the reverse rotation of the Z2 shaft transmission lead screw pair 5; the horizontal supporting assembly 10 is fixedly connected with the first large supporting plate 6 and the second large supporting plate 7 respectively and moves left and right along with the horizontal supporting assembly, the processing assembly 20 is mounted on the horizontal supporting assembly 10 and processes parts along with the movement of the horizontal supporting assembly, the limiting assembly 30 is mounted on the lathe bed base 1 and used for fixing the processed parts, the operation of the processing assembly 20 is facilitated, and meanwhile, the parallel double-spindle turning center 100 is matched with a truss manipulator, so that a series of complete processing schemes such as self-feeding, multi-process processing, blanking and detection can be provided; the machining assembly 20 can realize combined machining such as turning, milling, drilling and the like; and adopt the design of symmetrical modularization, can expand the group line freely according to the actual processing demand; compared with the traditional turret machine tool, the parallel double-spindle turning center 100 has a more compact floor area, can bring the composite processing capacity of multiple processes and multiple technologies by using a smaller processing floor area, has a reserved automatic interface, can be more excellent in the aspects of saving manpower and labor, improving the processing stability and the like, and is favorable for improving the production efficiency.

Further, referring to fig. 1, fig. 3 and fig. 4, the horizontal support assembly 10 includes an X1-axis linear guide 11 and an X2-axis linear guide 12, wherein the X1-axis linear guide 11 is fixedly connected to the first large pallet 6 and is located on a side of the first large pallet 6 away from the bed base 1; the X2-axis linear guide rail 12 is fixedly connected with the second large supporting plate 7 and is positioned on one side, far away from the bed base 1, of the second large supporting plate 7.

Further, referring to fig. 1, fig. 3 and fig. 4, the horizontal support assembly 10 further includes an X1-axis transmission screw pair 13 and an X2-axis transmission screw pair 14, wherein the X1-axis transmission screw pair 13 is rotatably connected to the first large support plate 6 and is located on a side of the first large support plate 6 away from the X1-axis linear guide 11; the X2 shaft transmission screw pair 14 is rotatably connected with the second large supporting plate 7 and is positioned on one side of the second large supporting plate 7 far away from the X2 shaft linear guide rail 12.

Further, referring to fig. 1, fig. 3 and fig. 4, the horizontal support assembly 10 further includes a first small support plate 15 and a second small support plate 16, the first small support plate 15 is rotatably connected to the X1-axis transmission screw pair and is located on one side of the X1-axis transmission screw pair 13 close to the X1-axis linear guide 11; the second small supporting plate 16 is rotatably connected with the X2-axis transmission screw pair 14 and is positioned at one side of the X2-axis transmission screw pair close to the X2-axis linear guide rail 12.

In the present embodiment, the X1-axis linear guide 11 and the X2-axis linear guide 12 are fixed to the first large pallet 6 and the second large pallet 7 by bolts and press blocks, respectively; the X1-axis transmission lead screw pair and the X2-axis transmission lead screw pair are respectively rotatably installed on the first large supporting plate 6 and the second large supporting plate 7 through bolts and taper pins and are driven to rotate by a servo motor; the first small supporting plate 15 and the second small supporting plate 16 are slidably mounted on the X1-axis linear guide rail 11 and the X2-axis linear guide rail 12 through bolts and pressing blocks, and the first small supporting plate 15 and the second small supporting plate 16 are further rotatably connected with the X1-axis transmission lead screw pair and the X2-axis transmission lead screw pair through bolts and taper pins respectively; furthermore, the first small supporting plate 15 moves back and forth on the X1 axis linear guide rail 11 according to the positive rotation and the reverse rotation of the X1 axis transmission screw rod pair 13, the second small supporting plate 16 moves back and forth on the X2 axis linear guide rail 12 according to the positive rotation and the reverse rotation of the X1 axis transmission screw rod pair, and the processing assembly 20 is driven to move back and forth and left and right, so that the processing is more convenient, and the symmetrical modular design is adopted, so that the composite processing capacity of multiple processes and multiple technologies is brought by using a small processing floor area, and the working efficiency is improved.

Further, referring to fig. 1 and fig. 2, the processing assembly 20 includes a first power turret 21 and a second power turret 22, and the first power reaches to be fixedly connected with the first small supporting plate 15 and is located on a side of the first small supporting plate 15 away from the bed base 1; the second power tool turret 22 is fixedly connected with the second small supporting plate 16 and is located on one side of the second small supporting plate 16 far away from the bed base 1.

In this embodiment, the first small supporting plate 15 and the second small supporting plate 16 are respectively fixed with the first power tool turret 21 and the second power tool turret 22, wherein the first power tool turret 21 and the second power tool turret 22 adopt power tool turrets in the prior art, are provided with tools for machining, and can realize reciprocating motion in the Y-axis direction through an internal motor and a transmission structure to perform combined cutting on machined parts; by adopting the double-power tool turret, the combined machining such as turning, milling, drilling and the like can be realized, the symmetrical modular design can freely expand a group line according to the actual machining requirement, the combined machining capacity of multiple processes and multiple technologies is brought by a small machining floor area, and the production efficiency is improved.

Further, referring to fig. 2, the limiting assembly 30 includes a first spindle 31, a second spindle 32 and a transmission member 33, where the first spindle 31 is fixedly connected to the machine tool base 1 and is located on one side of the machine tool base 1 close to the first power turret 21; the second spindle 32 is fixedly connected with the bed base 1 and is positioned on one side of the bed close to the second power tool turret 22; the transmission member 33 is fixedly connected with the bed base 1.

Further, referring to fig. 2, the limiting assembly 30 includes a first clamp 34 and a second clamp 35, the first clamp 34 is fixedly connected to the first main shaft 31 and is located at the front end of the first main shaft 31; the second clamp 35 is fixedly connected to the second main shaft 32 and located at the front end of the second main shaft 32.

Further, referring to fig. 2, the transmission member 33 includes a first main motor 331 and a second main motor 332, the first main motor 331 is fixedly connected to the machine tool base 1 and is located on a side of the machine tool base 1 close to the first spindle 31; the second main motor 332 is fixedly connected to the bed base 1 and is located on one side of the bed base 1 close to the second spindle 32.

Further, referring to fig. 2 and 4, the transmission member 33 further includes a first belt pair 333 and a second belt pair 334, one side of the first belt pair 333 is rotatably connected to the first main motor 331, the other side of the first belt pair 333 is rotatably connected to the first main shaft 31, and the first belt pair 333 is located between the first main motor 331 and the first main shaft 31; one side of the second belt pair 334 is rotatably connected to the second main motor 332, and the other side of the second belt pair 334 is rotatably connected to the second main shaft 32 and is located between the second main shaft 32 and the second main motor 332.

In the present embodiment, the first spindle 31 and the second spindle 32 are respectively fixed to the bed base 1 by bolts and taper pins, and the first clamp 34 and the second clamp 35 are respectively fixed to the front ends of the first spindle 31 and the second spindle 32 by bolts, are respectively close to one sides of the first power turret 21 and the second power turret 22, and are used for clamping a machined part; the first main motor 331 and the second main motor 332 are respectively bolted to the lathe bed base 1; the first main motor 331 and the second main motor 332 are respectively connected to the synchronizing wheels at the ends of the first main shaft 31 and the second main shaft 32 through the first belt pair 333 and the second belt pair 334, and are used for main shaft rotation.

The operation of the parallel double-spindle turning center 100 is as follows:

the tail ends of the Z1 shaft transmission lead screw pair, the Z2 shaft transmission lead screw pair, the X1 shaft transmission lead screw pair and the X2 shaft transmission lead screw pair are respectively connected with a servo motor for providing power, and then the first large supporting plate 6 and the second large supporting plate 7 respectively realize reciprocating motion in the Z axis direction through the Z1 shaft transmission lead screw pair and the Z2 shaft transmission lead screw pair which are connected below; the first small supporting plate 15 and the second small supporting plate 16 respectively realize reciprocating motion in the X-axis direction through the X1-axis transmission lead screw pair and the X2-axis transmission lead screw pair which are connected below;

the first power tool turret 21 and the second power tool turret 22 can realize reciprocating motion in the Y-axis direction through an internal motor and a transmission structure;

the first main shaft 31 and the second main shaft 32 are fixed, the first main motor 331 and the second main motor 332 connected by a belt pair respectively provide rotary power, and oil cylinders at the tail ends of the first main shaft 31 and the second main shaft 32 respectively provide power for clamping a machined part for the first clamp 34 and the second clamp 35 at the front ends of the first main shaft and the second main shaft.

The machining process of the parallel double-spindle turning center 100 comprises the following steps:

the first clamp 34 at the front end of the first spindle 31 clamps the machined part, and the machined part is compositely cut by the linkage of three directions of XYZ through the first large support plate 6, the first small support plate 15 and the first power tool turret 21, and the exchange of a rotary control tool for the tool disc through an internal motor of the first power tool turret 21.

The second spindle 32 is partially machined as the first spindle 31.

The parallel double-spindle turning center 100 according to the present invention is mainly used in a scenario in which a truss manipulator is used, and the truss manipulator carries out loading and unloading operations on parts to be machined on the first fixture 34 and the second fixture 35; the first main shaft 31 part and the second main shaft 32 part can be used for carrying out two-sequence or multi-sequence processing on processed parts, and a detection device is arranged outside the machine body and can be used for carrying out detection work on the processed parts according to corresponding requirements; therefore, a series of automatic complete processing flows such as self-feeding, composite processing, blanking, detection and the like are realized. The machine body of the parallel double-spindle turning center 100 related by the invention is designed symmetrically, and is provided with a plurality of interfaces for splicing and combining the machine types, namely the machine types have combination expansibility, and can bring the complex processing capacity of multiple processes and multiple technologies by using smaller processing floor area, and the reserved automatic interfaces can be more excellent in the aspects of saving manpower and labor force, improving the processing stability and the like, and improve the production efficiency.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.