CN104942312B - Machine tools with dual drives - Google Patents

Abstract

The present invention relates to the lathe with dual drive, include pot motor, high torque motor and main shaft, many root posts are vertically installed with frame, the left hand ski and right hand ski of Z-direction up and down motion can be done along it by being provided with the guide rail of column, left hand ski and right hand ski are provided with horizontally extending guide rail, main shaft is rotatably supported on bearing block, bearing block is installed on main shaft slide plate, X-direction side-to-side movement can be done on main shaft slide plate along the guide rail on left hand ski and right hand ski, mainshaft gear is installed on main shaft, pot motor is installed on the column on right side, pot motor gear for being meshed with mainshaft gear is installed on pot motor output shaft, high torque motor is installed on the column in left side, high torque motor gear for being meshed with mainshaft gear is installed on high torque motor output shaft.High pulling torque can be both provided, ultrahigh rotating speed can be provided again, the use scope of lathe is expanded.

Description

Machine tools with dual drives

technical field

The invention relates to a machine tool with double drives, belonging to the technical field of machine tool equipment.

Background technique

A lathe is a machine tool that mainly uses a turning tool to turn a rotating workpiece. Drills, reamers, reamers, taps, dies and knurling tools can also be used for corresponding processing on the lathe. Lathes are mainly used to process shafts, disks, sleeves and other workpieces with rotating surfaces, and are the most widely used type of machine tools in machinery manufacturing and repair factories.

At present, in the processing of workpieces by lathes, the main shaft is the source shaft used to provide power. The power brought by its rotation can meet the needs of the various mechanisms of the machine tool, but the requirements for the speed of different mechanisms cannot be completely consistent. The power of the main motor of the CNC machine tool can also have various configurations on the machine tool of the same specification, which generally reflects the cutting rigidity and high-speed performance of the spindle of the machine tool. For example, the power of the spindle motor of a light machine tool may be 1 or 2 levels smaller than that of a standard machine tool. At present, the spindle speed of the machining center is (4000-8000) r/min, and the vertical machine tool of the high-speed machine tool can reach (20000-70000) r/min, and the power of the spindle motor can also be doubled. The power of the driving motor reflects the cutting efficiency of the machine tool, and also reflects the cutting rigidity and the overall rigidity of the machine tool from the other side. The main cutting force of the machine tool is the main parameter reflecting the performance of the machine tool.

In the production process of mechanical parts, some parts need to be processed at low speed and high torque. The typical processes include the following situations: 1) Low-speed smooth turning, which requires a roughness less than R3.2μm; 2) Fine reaming; 3 ) Various threads and multi-threads; 4) Use high-speed steel turning tools to perform rough turning end-face work on disc workpieces made of cast iron materials; some parts require high speed and low torque. The typical processing is generally in the processing of aviation parts. There are many thin-walled parts in aircraft structural parts that are easily deformed during processing. High-speed cutting can speed up chip removal, and chips can take away most of the cutting heat and reduce processing deformation.

From the above situation, for ordinary CNC machine tools, it is generally impossible to guarantee small speed, high torque and high speed and small torque at the same time in machining. For the same part, it is necessary to ensure high torque and high speed, which requires a complex speed regulating device. Efficiency drops and structure is complicated.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a machine tool with double drives, which can simultaneously provide high torque at low speed and low torque at high speed.

The purpose of the present invention is achieved through the following technical solutions:

A machine tool with double drives, which is characterized by: it includes a high-speed motor, a high-torque motor and a spindle, and there are multiple vertical columns installed on the frame, and a left side that can move up and down along the Z-axis direction is installed on the guide rail of the column. The slide plate and the right slide plate, the left slide plate and the right slide plate are provided with guide rails extending in the horizontal direction. The guide rail on the right skateboard moves left and right in the X-axis direction, the main shaft gear is installed on the main shaft, the high-speed motor is installed on the right column, and the high-speed motor gear for meshing with the main shaft gear is installed on the output shaft of the high-speed motor , a high-torque motor is installed on the column on the left side, and a high-torque motor gear for meshing with the main shaft gear is installed on the output shaft of the high-torque motor.

Further, in the above-mentioned machine tool with double drives, the frame is provided with a drive mechanism for driving the spindle slide to move left and right along the X-axis direction.

Furthermore, in the above-mentioned machine tool with double drives, the drive mechanism is a servo motor drive mechanism or a hydraulic cylinder drive mechanism.

Still further, the above-mentioned machine tool with double drives, wherein, the frame is provided with drive units for respectively driving the left slide, the right slide, the high-speed motor and the high-torque motor to move up and down along the Z-axis direction.

Still further, in the above-mentioned machine tool with double drives, the drive unit is a servo motor drive unit or a hydraulic cylinder drive unit.

Substantive features and progress of the technical solution of the present invention are mainly reflected in:

The invention has a unique design and a novel structure, and provides a double-spindle machine tool. The double-spindle machine tool is equipped with two different motors as power. One machine tool can provide both large torque and ultra-high speed, which solves the problem of existing machine tools. The contradiction of being unable to provide high torque at low speed and low torque at high speed at the same time expands the scope of use of the machine tool. A part can be realized from roughing to finishing at the same time. The structure of the machine tool is simple and there is no complicated speed regulating device, which reduces the friction loss of the machine tool. The design of the double-spindle machine tool can process two parts at the same time, which improves the working efficiency and practicability of the machine tool.

Description of drawings

Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:

Figure 1: Schematic diagram of the structure of the present invention.

detailed description

As shown in Figure 1, the machine tool with double drive is characterized in that: it includes a high-speed motor 5, a high-torque motor 6 and a main shaft 1, and a plurality of columns 7 are vertically installed on the frame 10, and the guide rails of the columns 7 are installed There is a left slide 8 and a right slide 9 that can move up and down along the Z-axis. The left slide 8 and the right slide 9 are provided with guide rails extending in the horizontal direction. The main shaft 1 is rotatably supported on the bearing housing 11 Above, bearing seat 11 is installed on the spindle slide 2, which can move left and right in the X-axis direction along the guide rails on the left slide 8 and right slide 9. The spindle gear 3 is installed on the spindle 1, and the right column A high-speed motor 5 is installed on the top, and a high-speed motor gear 4 for meshing with the main shaft gear 3 is installed on the output shaft of the high-speed motor 5. A high-torque motor 6 is installed on the left column, and a high-torque motor 6 is installed on the output shaft. A high-torque motor gear 12 for meshing with the main shaft gear 3 is installed.

In addition, the frame 10 is provided with a driving mechanism for driving the spindle slide 2 to move left and right along the X-axis direction, and the driving mechanism is a servo motor driving mechanism or a hydraulic cylinder driving mechanism. The frame (10) is provided with drive units for respectively driving the left slide plate 8, the right slide plate 9, the high-speed motor 5 and the high-torque motor 6 to move up and down along the Z-axis direction, and the drive unit is a servo motor drive unit or a hydraulic cylinder Drive unit.

The high-speed motor 5 provides high speed and low torque to drive the spindle to meet the requirements for finishing; the high-torque motor 6 provides low-speed and high torque to drive the spindle to meet the requirements for rough machining;

The left slide plate 8 and the right slide plate 9 match the guide rail on the column 7 through its chute, and match the slide groove on the main shaft slide plate 2 through the guide rail on it; the left slide plate 8 and the right slide plate 9 can slide up and down, and the main shaft slide plate 2 Can slide left and right along the guide rails on the left side slide plate 8 and the right side slide plate 9.

In specific applications, when the workpiece to be processed requires high-torque machining, such as rough machining, the spindle 1 is driven by the spindle slide 2 to the left slide 8, which can be driven by a servo motor or a hydraulic cylinder. The spindle gear 3 and the high-torque motor gear 12 Just in mesh, the high-torque motor 6 transmits power to the spindle 1 through gear transmission, and the spindle 1 is brought to the tool for processing. During the processing, when Z-direction feed is required, the high-torque motor 6 and the left slide 8 can be driven in the Z direction at the same time. sports.

When the workpiece to be processed requires high-speed machining, such as finishing, the main shaft 1 is driven by the 2-spindle slide 2 to the right slide 9, which can be driven by a servo motor or a hydraulic cylinder. The main shaft gear 3 and the high-speed motor gear 4 are just meshed. The high-speed motor 5 transmits power to the main shaft 1 through gear transmission, and the main shaft 1 is brought to the tool for processing. During the processing, when feeding in the Z direction is required, the high-speed motor gear 4 and the right slide plate 9 are driven to move in the Z direction at the same time.

In summary, the present invention has a unique design and a novel structure, and provides a double-spindle machine tool. The double-spindle machine tool is equipped with two different motors as power, and one machine tool can provide both high torque and ultra-high speed. It solves the contradiction that the existing machine tool cannot simultaneously provide high torque at low speed and low torque at high speed, and expands the scope of use of the machine tool. A part can be realized from roughing to finishing at the same time. The structure of the machine tool is simple and there is no complicated speed regulating device, which reduces the friction loss of the machine tool. The design of the double-spindle machine tool can process two parts at the same time, which improves the working efficiency and practicability of the machine tool.

It should be emphasized that: the above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are valid. Still belong to the scope of the technical solution of the present invention.

Claims (5)

1. the lathe with dual drive, it is characterised in that：Include pot motor（5）, high torque motor（6）And main shaft（1）, Frame（10）On be vertically installed with many root posts（7）, column（7）Guide rail on be provided with Z-direction up and down motion can be done along it Left hand ski（8）And right hand ski（9）, left hand ski（8）And right hand ski（9）Led provided with horizontally extending Rail, main shaft（1）Rotatably it is supported in bearing block（11）On, bearing block（11）It is installed on main shaft slide plate（2）On, main shaft slide plate （2）On can be along left hand ski（8）And right hand ski（9）On guide rail do X-direction side-to-side movement, main shaft（1）On master is installed Shaft gear（3）, pot motor is installed on the column on right side（5）, pot motor（5）Being provided with output shaft is used for and master Shaft gear（3）The pot motor gear being meshed（4）, high torque motor is installed on the column in left side（6）, high torque motor （6）Being provided with output shaft is used for and mainshaft gear（3）The high torque motor gear being meshed（12）.

2. the lathe according to claim 1 with dual drive, it is characterised in that：The frame（10）Being provided with is used to drive Dynamic main shaft slide plate（2）Along the drive mechanism of X-direction side-to-side movement.

3. the lathe according to claim 2 with dual drive, it is characterised in that：The drive mechanism is driven for servomotor Motivation structure or Driven by Hydraulic Cylinder mechanism.

4. the lathe according to claim 1 with dual drive, it is characterised in that：The frame（10）Being provided with is used to divide Left hand ski is not driven（8）, right hand ski（9）, pot motor（5）And high torque motor（6）Moved up and down along Z-direction Driver element.

5. the lathe according to claim 4 with dual drive, it is characterised in that：The driver element drives for servomotor Moving cell or Driven by Hydraulic Cylinder unit.