Precise numerical control lathe

Abstract

The utility model discloses a precise numerical control lathe which comprises a lathe base, a spindle box installed on the lathe base, a tailstock installed on the lathe base and located on the same straight line with the spindle box, and a driving motor installed on one side of the lathe base and connected with the spindle box through a belt. The lathe comprises a lathe base, a spindle box arranged on the lathe base, a Z-axis saddle arranged on the lathe base and provided with a lead screw motor, a Z-axis supporting plate assembled on the Z-axis saddle, and a tool turret assembled on the Z-axis supporting plate, the tailstock comprises a tailstock body, a torque motor arranged on the tailstock body and aligned with the spindle box, and a tailstock sleeve arranged on the tailstock body and connected with the output end of the torque motor; the structure of the torque motor and the tailstock sleeve is adopted for the tailstock, the tailstock is installed on the tailstock body through the stud, the workpiece can be clamped more firmly and reliably, in addition, the driving force of the torque motor can be set according to the range of the workpiece, the output force of the tailstock sleeve is controlled, and the situation that the machined workpiece is damaged due to the fact that the output force of the tailstock is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of precision numerically controlled lathes, in particular to a precision numerically controlled lathe. Background Art

[0002] CNC lathes are widely used. They are mainly used for cutting inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of arbitrary taper angles, complex rotational inner and outer curved surfaces, and cylindrical and conical threads. They can also perform grooving, drilling, reaming and boring.

[0003] However, the existing CNC lathes need to use a tailstock for processing when processing workpieces, but the pressure of the tailstock cannot be adjusted by speed regulation, resulting in excessive tailstock output, causing damage to the processed workpiece. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a precision CNC lathe capable of controlling the output of the tailstock sleeve.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A precision CNC lathe comprises a lathe base, a spindle box mounted on the lathe base, a tailstock mounted on the lathe base and located in the same straight line as the spindle box, a drive motor mounted on one side of the lathe base and connected to the spindle box via a belt, a Z-axis saddle with a lead screw motor mounted on the lathe base, a Z-axis support plate mounted on the Z-axis saddle, and a turret mounted on the Z-axis support plate, wherein the tailstock comprises a tailstock body, a torque motor mounted on the tailstock body and aligned with the spindle box, and a tailstock sleeve mounted on the tailstock body and connected to the output end of the torque motor.

[0007] Preferably, the tailstock body is provided with a torque motor mounting groove corresponding to the position where the torque motor is mounted, and a sleeve mounting groove is provided corresponding to the position where the tailstock sleeve is mounted.

[0008] Preferably, a fixing flange is provided at one end of the torque motor connected to the tailstock sleeve, and the fixing flange is installed on the torque motor mounting groove through a stud. The output end of the torque motor is also connected to a ball screw, which is connected to the tailstock sleeve through the ball screw.

[0009] Preferably, the lathe base is equipped with an inclined worktable at a position corresponding to the installation of the Z-axis saddle, and a lathe rolling linear guide pair for the Z-axis saddle to move the X-axis is installed on the inclined worktable.

[0010] Preferably, a claw plate is mounted on one end of the spindle box facing the tailstock, and an oil cylinder for controlling the movement of the claw plate through a pull rod is mounted on the other end of the spindle box.

[0011] Preferably, a motor mounting bracket is fixedly provided below the driving motor, and the motor mounting bracket is a right-angle mounting bracket, which fixes the driving motor and the lathe base respectively.

[0012] Preferably, a saddle rolling linear guide pair for guiding the moving Z-axis support plate is installed on the upper surface of the Z-axis saddle.

[0013] Preferably, an X-axis slide seat is integrally formed on the lower surface of the Z-axis slide saddle.

[0014] The beneficial effects of the utility model are:

[0015] 1. The tailstock adopts the structure of torque motor and tailstock sleeve, which is installed on the tailstock body through studs, making the workpiece clamping more firm and reliable. In addition, the tailstock can also set the driving force of the torque motor according to the range of the workpiece, thereby controlling the size of the tailstock sleeve output to avoid excessive tailstock output and damage to the processed workpiece;

[0016] 2. The lathe base is also equipped with an inclined worktable and a rolling linear guide pair, which can realize the X-axis movement of the Z-axis slide saddle, further improving the processing accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of a precision CNC lathe of the utility model;

[0018] Figure 2 This is the second structural schematic diagram of a precision CNC lathe of the utility model;

[0019] Figure 3 for Figure 1 Structural view of the middle tailstock;

[0020] Figure 4 for Figure 3 Partial cross-sectional view of the tailstock. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0022] Example

[0023] like Figure 1-2As shown, a precision CNC lathe includes a lathe base 1, a spindle box 2 installed on the lathe base 1, a tail stock 3 installed on the lathe base 1 and located in the same straight line as the spindle box 2, a drive motor 4 installed on one side of the lathe base 1 and connected to the spindle box 2 through a belt, a Z-axis saddle 5 with a lead screw motor installed on the lathe base 1, a Z-axis support plate 6 mounted on the Z-axis saddle 5, and a turret 7 mounted on the Z-axis support plate 6.

[0024] The lathe base 1 is equipped with an inclined worktable 11 at the position corresponding to the installation of the Z-axis saddle 5, and a lathe rolling linear guide pair 12 for the Z-axis saddle to move in the X-axis is installed on the inclined worktable 11. The use of the inclined worktable and the rolling linear guide pair can realize the X-axis movement of the Z-axis saddle, which can improve the processing accuracy and efficiency.

[0025] The end of the spindle box 2 facing the tailstock is equipped with a claw plate 21, and the other end of the spindle box 2 is equipped with a cylinder 22 for controlling the movement of the claw plate 21 through a pull rod. Specifically, the cylinder 22 controls the claw plate 21 to clamp or release the workpiece.

[0026] The movement of the jaw plate is controlled by the oil cylinder, and the clamping force can be adjusted according to the size and shape of different workpieces to ensure the stability and safety of the clamped workpiece.

[0027] A motor mounting frame 41 is fixedly disposed below the driving motor 4 . The motor mounting frame 41 is a right-angle mounting frame, which fixes the driving motor 4 and the lathe base 1 respectively.

[0028] The upper surface of the Z-axis saddle 5 is installed with a saddle rolling linear guide pair 51 for guiding and moving the Z-axis support plate 6. Specifically, the X-axis slide seat 52 is assembled with the lathe rolling linear guide pair 12. Under the drive of the screw motor built into the lathe base 1, the Z-axis saddle 5 is driven to move in the X-axis on the workbench 11. The lower surface of the Z-axis saddle 5 is integrally formed with an X-axis slide seat 52. Specifically, the Z-axis support plate 6 is assembled with the saddle rolling linear guide pair 51. The Z-axis support plate 6 is dragged by the screw motor to make the turret 7 move in the Z-axis on the Z-axis saddle 5.

[0029] The use of saddle rolling linear guide pair and lead screw motor drive can realize the X-axis movement of the Z-axis saddle and the movement of the turret on the Z-axis, improving the processing accuracy. The use of saddle rolling linear guide pair and one-piece X-axis slide 52 design can effectively reduce machine tool vibration and noise, ensuring long-term stable operation of the equipment.

[0030] like Figure 3-4As shown, the tailstock 3 includes a tailstock body 31, a torque motor 32 mounted on the tailstock body 31 and aligned with the spindle box 2, and a tailstock sleeve 33 mounted on the tailstock body 31 and connected to the output end of the torque motor 32. The tailstock body 31 is provided with a torque motor mounting groove 311 corresponding to the position where the torque motor 32 is mounted, and a sleeve mounting groove 312 is provided corresponding to the position where the tailstock sleeve 33 is mounted. Specifically, after the torque motor 32 and the tailstock sleeve 33 are assembled, the torque motor 32 is passed through the sleeve mounting groove 312 and then mounted on the torque motor mounting groove 311 through a stud.

[0031] In this solution, the tailstock adopts a structure of a torque motor and a tailstock sleeve, which is installed on the tailstock body through studs, making the workpiece clamping more firm and reliable. In addition, the tailstock can also set the driving force of the torque motor according to the workpiece range, thereby controlling the output of the tailstock sleeve to avoid excessive tailstock output and damage to the processed workpiece.

[0032] In addition, the solution uses a torque motor as the tailstock drive source to achieve high torque output and precise control, so that the tailstock can apply the required torque to the workpiece, improving processing efficiency and precision. The tailstock body is designed with a special torque motor installation slot and sleeve installation slot. The torque motor is connected to the tailstock sleeve through a stud, which is convenient and quick to install. In addition, the structure of the tailstock body and the tailstock sleeve is stable and reliable, capable of withstanding large workpiece torque and ensuring stability and precision during processing.

[0033] One end of the torque motor 32 connected to the tailstock sleeve 33 is provided with a fixing flange 321, which is installed on the torque motor mounting groove 311 through a stud. The output end of the torque motor 32 is also connected to a ball screw 322, which is connected to the tailstock sleeve 33 through the ball screw 322.

[0034] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A precision CNC lathe, comprising a lathe base, a spindle box mounted on the lathe base, a tailstock mounted on the lathe base and located in the same straight line as the spindle box, a drive motor mounted on one side of the lathe base and connected to the spindle box through a belt, a Z-axis saddle with a lead screw motor mounted on the lathe base, a Z-axis support plate mounted on the Z-axis saddle, and a turret mounted on the Z-axis support plate, characterized in that: The tailstock comprises a tailstock body, a torque motor mounted on the tailstock body and aligned with the spindle box, and a tailstock sleeve mounted on the tailstock body and connected to the output end of the torque motor.

2. The precision CNC lathe according to claim 1, characterized in that: The tailstock body is provided with a torque motor mounting groove corresponding to the position where the torque motor is mounted, and a sleeve mounting groove is provided corresponding to the position where the tailstock sleeve is mounted.

3. The precision CNC lathe according to claim 1, characterized in that: One end of the torque motor connected to the tailstock sleeve is provided with a fixing flange, which is installed on the torque motor mounting groove through a stud. The output end of the torque motor is also connected to a ball screw, which is connected to the tailstock sleeve through the ball screw.

4. The precision CNC lathe according to claim 1, characterized in that: The lathe base is equipped with an inclined worktable at a position corresponding to the installation of the Z-axis slide saddle, and the Z-axis slide saddle is installed on the inclined worktable for the lathe rolling linear guide pair for X-axis movement.

5. The precision CNC lathe according to claim 1, characterized in that: The end of the spindle box facing the tailstock is equipped with a claw plate, and the other end of the spindle box is equipped with an oil cylinder that controls the movement of the claw plate through a pull rod.

6. The precision CNC lathe according to claim 1, characterized in that: A motor mounting frame is fixedly arranged below the driving motor, and the motor mounting frame is a right-angle mounting frame, which fixes the driving motor and the lathe base respectively.

7. The precision CNC lathe according to claim 1, characterized in that: The upper surface of the Z-axis saddle is provided with a saddle rolling linear guide pair for guiding the moving Z-axis support plate.

8. The precision CNC lathe according to claim 1, characterized in that: The lower surface of the Z-axis saddle is integrally formed with an X-axis slide seat.

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