CN214644429U

CN214644429U - Brushless DC motor direct-drive type small wood lathe

Info

Publication number: CN214644429U
Application number: CN202023287385.4U
Authority: CN
Inventors: 徐荣义
Original assignee: Nanjing Xinye Machinery International Co ltd
Current assignee: Nanjing Xinye Machinery International Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-09
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a brushless DC motor directly drives small-size lathe of formula relates to lathe technical field, for solving current lathe, because spare part is numerous, causes the relatively poor problem of maintenance cost high reliability. The one end of bed is provided with motor base, the other end top of bed is provided with tailstock clamping screw, motor base's inside is provided with brushless DC motor driver, motor base's front end is provided with control panel, motor base's upper end is provided with the motor and supports the shell, the upper end that the motor supported the shell is provided with the spindle head, the upper end of bed is provided with the carpenter's knife rest, the inside of spindle head is provided with motor stator, motor stator's inside is provided with motor rotor core, and motor rotor core is connected with motor stator electromagnetic transmission, motor rotor core's inner wall is provided with motor spindle.

Description

Brushless DC motor direct-drive type small wood lathe

Technical Field

The utility model relates to a wood lathe technical field specifically is a brushless DC motor directly drives small-size wood lathe of formula.

Background

A wood lathe is composed of lathe body, tail seat at tail of guide track, tool rest at middle of guide track, headstock at head of lathe body, mainshaft installed to headstock, chuck on said mainshaft, motor installed to headstock, and speed varying driver installed to motor shaft, mainshaft and headstock. The turning tool is arranged on the tool rest and can be moved by the carriage belt to move longitudinally or transversely, and the turning tool can also be held by hand to lean against the bracket to feed. The common woodworking lathe is used for processing such as external circle turning, end face turning, grooving and boring, and has excellent performance. And the rough turning machining tool consumption can reach about 3, the optimized design of the transmission system greatly reduces the fault rate of the machine tool, and the specially processed gear system can transfer more damping torques to each shaft, so that the shaft part is stressed, and the tooth part is protected.

However, the existing wood lathe has the problems of high maintenance cost and poor reliability due to numerous parts; therefore, the existing requirements are not met, and a brushless direct current motor direct-drive small wood lathe is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless DC motor directly drives small-size lathe to solve the current lathe that proposes in the above-mentioned background art, because spare part is numerous, cause the relatively poor problem of maintenance cost high reliability.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a brushless DC motor directly drives small-size wood working lathe of formula, includes the bed, the one end of bed is provided with the motor base, and motor base and bed bolted connection, the other end top of bed is provided with tailstock clamping screw, and tailstock clamping screw and bed draw-in groove sliding connection, the inside of motor base is provided with brushless DC motor driver, the front end of motor base is provided with control panel, and control panel and brushless DC motor driver electric connection, the upper end of motor base is provided with motor support shell, and motor support shell and motor base bolted connection, the upper end that the motor supported the shell is provided with the spindle head, and spindle head and motor support shell welded connection, the upper end of bed is provided with the woodworking knife rest, and woodworking knife rest and bed draw-in groove sliding connection.

Preferably, the inside of spindle head is provided with motor stator, motor stator's inside is provided with motor rotor core, and motor rotor core is connected with motor stator electromagnetic transmission, and motor stator, motor rotor core and brushless direct current motor driver electric connection, motor rotor core's inner wall is provided with motor spindle, and motor spindle and motor rotor core fixed connection.

Preferably, one end of the motor main shaft is provided with a hand wheel, the hand wheel is fixedly connected with the motor main shaft, the other end of the motor main shaft is provided with a thimble, and the thimble is connected with the inner wall of the motor main shaft in an interference fit manner.

Preferably, a flange is arranged on the outer wall of the motor spindle at one end of the thimble, and the flange is fixedly connected with the outer wall of the motor spindle.

Preferably, a hall sensor is arranged on the inner wall of the spindle head close to one side of the hand wheel, the hall sensor is fixedly connected with the inner wall of the spindle head, and the hall sensor is electrically connected with the control panel.

Preferably, the last switch that is provided with of control panel, the both sides of switch are provided with speed governing potentiometre and positive reverse switch respectively, the upper end of speed governing potentiometre is provided with overload protection pilot lamp, the upper end of positive reverse switch is provided with overload protection ware, the upper end of switch is provided with rotational speed digital display, and switch, speed governing potentiometre, positive reverse switch, overload protection pilot lamp, overload protection ware, rotational speed digital display all with control panel electric connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model, through the arrangement of the spindle head, the hand wheel, the motor spindle and the thimble, when in work, firstly, the wood is placed between the thimble and the tailstock fixing screw, the tailstock fixing screw moves on the bed to determine the size and clamp the wood, at the time, the brushless DC motor driver drives the circuit in the spindle head to be electrified, after the electrification, the motor rotor core is forced to rotate due to the electromagnetic effect, the rotating motor rotor core drives the motor spindle to rotate, and the thimble on the inner wall of the motor spindle is rotated, the rotating thimble drives the wood to rotate, and finally, the wood rotating at high speed is processed by the woodworking knife rest, the utility model adopts the brushless DC motor to directly drive, cancels the traditional complex transmission structure, the motor spindle directly serves as the lathe spindle, reduces the number of parts, simplifies the mechanical structure, and greatly improves the service performance, the reliability and the like, further reducing the later maintenance cost and difficulty of the device and reducing the production cost of the device.

2. Through the arrangement of the hand wheel and the ejector pin, the hand wheel is fixedly connected with the motor spindle, so that the function of manually controlling and rotating wood can be achieved by rotating the hand wheel even under the condition that the device is not electrified, the diversity and controllability of the device processing method are improved, and the ejector pin can be unloaded from the interior of the motor spindle so as to be conveniently detached and replaced when necessary.

3. Through the arrangement of the Hall sensor, when the hand wheel rotates, the Hall sensor can monitor the rotation speed of the motor spindle in real time, the rotation speed information is transmitted to the control panel, and the real-time rotation speed of the motor spindle is displayed by the rotation speed digital display.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a front view of the motor base according to the present invention;

fig. 3 is a schematic view of the internal structure of the motor base of the present invention;

FIG. 4 is a partial enlarged view of the point A of the present invention;

in the figure: 1. a bed; 2. a motor base; 3. a control panel; 4. a tailstock fixing screw rod; 5. a woodworking knife rest; 6. a motor support housing; 7. a spindle head; 8. a switch; 9. a speed-regulating potentiometer; 10. a forward and reverse rotation switch; 11. an overload protection indicator light; 12. an overload protector; 13. a rotational speed digital display; 14. a thimble; 15. a flange plate; 16. a hand wheel; 17. a motor stator; 18. a motor rotor core; 19. a Hall sensor; 20. a motor spindle; 21. brushless DC motor driver.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment: a brushless direct current motor direct drive type small wood lathe, which comprises a bed 1, wherein one end of the bed 1 is provided with a motor base 2, the motor base 2 is connected with the bed 1 by bolts, a tailstock fixing screw rod 4 is arranged above the other end of the bed 1, and the tailstock fixing screw rod 4 is connected with the clamping groove of the bed table 1 in a sliding way, a brushless direct current motor driver 21 is arranged inside the motor base 2, the front end of the motor base 2 is provided with a control panel 3, and the control panel 3 is electrically connected with the brushless DC motor driver 21, the upper end of the motor base 2 is provided with a motor supporting shell 6, and the motor supporting shell 6 is connected with the motor base 2 by bolts, the upper end of the motor supporting shell 6 is provided with a main shaft head 7, and the main shaft head 7 is welded with the motor supporting shell 6, the upper end of the bed table 1 is provided with the woodworking tool rest 5, and the woodworking tool rest 5 is connected with the clamping groove of the bed table 1 in a sliding manner.

Further, spindle head 7's inside is provided with motor stator 17, motor stator 17's inside is provided with motor rotor core 18, motor rotor core 18 is connected with motor stator 17 electromagnetic drive, and motor stator 17, motor rotor core 18 and brushless DC motor driver 21 electric connection, motor rotor core 18's inner wall is provided with motor spindle 20, and motor spindle 20 and motor rotor core 18 fixed connection, the utility model discloses a brushless DC motor direct drive has cancelled traditional complicated transmission structure, and motor spindle 20 directly regards as the lathe main shaft, has reduced part quantity, has simplified mechanical structure, and performance and reliability etc. all obtain very big improvement, have further reduced the later maintenance cost and the degree of difficulty of device, have reduced the manufacturing cost of device.

Further, a hand wheel 16 is arranged at one end of the motor main shaft 20, the hand wheel 16 is fixedly connected with the motor main shaft 20, an ejector pin 14 is arranged at the other end of the motor main shaft 20, and the ejector pin 14 is connected with the inner wall of the motor main shaft 20 in an interference fit manner, because the hand wheel 16 is fixedly connected with the motor main shaft 20, the function of manually controlling and rotating the wood can be achieved by rotating the hand wheel 16 even if the device is not powered on, and the diversity and controllability of the device processing method are improved.

Further, a flange 15 is arranged on the outer wall of the motor main shaft 20 at one end of the thimble 14, the flange 15 is fixedly connected with the outer wall of the motor main shaft 20, and the flange 15 improves the fixing stability of wood.

Further, a hall sensor 19 is arranged on the inner wall of the spindle head 7 close to one side of the hand wheel 16, the hall sensor 19 is fixedly connected with the inner wall of the spindle head 7, the hall sensor 19 is electrically connected with the control panel 3, the hall sensor 19 can monitor the rotation speed of the motor spindle 20 in real time, the rotation speed information is transmitted to the control panel 3, and the real-time rotation speed of the motor spindle 20 is displayed by the rotation speed digital display 13.

Further, a switch 8 is arranged on the control panel 3, a speed regulation potentiometer 9 and a forward and reverse rotation switch 10 are respectively arranged on two sides of the switch 8, an overload protection indicator lamp 11 is arranged at the upper end of the speed regulation potentiometer 9, an overload protector 12 is arranged at the upper end of the forward and reverse rotation switch 10, a rotating speed digital display 13 is arranged at the upper end of the switch 8, the speed regulation potentiometer 9, the forward and reverse rotation switch 10, the overload protection indicator lamp 11, the overload protector 12 and the rotating speed digital display 13 are all electrically connected with the control panel 3, and the rotating speed digital display 13 converts signals received by the Hall sensor 19 into optical signals, so that a worker can monitor the rotating speed of the rotating shaft in real time, and the reliability of the device is improved.

The working principle is as follows: when in use, firstly, wood is placed between the thimble 14 and the tailstock fixing screw rod 4 during working, the tailstock fixing screw rod 4 moves on the bed 1 to determine the size and clamp the wood, then the brushless direct current motor driver 21 drives the circuit in the spindle head 7 to be electrified, the motor rotor core 18 is forced to rotate due to the electromagnetic force effect after the electrification, the rotating motor rotor core 18 drives the motor spindle 20 to rotate and enables the thimble 14 on the inner wall of the motor spindle 20 to rotate, the rotating thimble 14 drives the wood to rotate, and finally, the woodworking knife rest 5 processes the wood rotating at high speed, the utility model adopts the brushless direct drive of the brushless direct current motor, cancels the traditional complex transmission structure, the motor spindle 20 directly serves as the lathe spindle, reduces the number of parts, simplifies the mechanical structure, greatly improves the service performance, the reliability and the like, and further reduces the later maintenance cost and the difficulty of the device, the production cost of the device is reduced, the problem that the existing wood lathe is high in maintenance cost and poor in reliability due to the fact that parts are numerous is solved, the hand wheel 16 is fixedly connected with the motor spindle 20, the hand wheel 16 can be rotated to achieve the function of manually controlling the rotating wood even under the condition that the device is not powered on, the diversity and controllability of the device processing method are improved, the ejector pins 14 can be unloaded from the interior of the motor spindle 20 so as to be conveniently detached and replaced when necessary, the rotating speed of the motor spindle 20 can be monitored in real time by the Hall sensor 19, the rotating speed information is transmitted to the control panel 3, and the real-time rotating speed of the motor spindle 20 is displayed by the rotating speed digital display 13.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a brushless DC motor direct-drive small-size wood lathe, includes bed (1), its characterized in that: a motor base (2) is arranged at one end of the bed (1), the motor base (2) is in bolted connection with the bed (1), a tailstock fixing screw (4) is arranged above the other end of the bed (1), the tailstock fixing screw (4) is in sliding connection with a clamping groove of the bed (1), a brushless direct current motor driver (21) is arranged inside the motor base (2), a control panel (3) is arranged at the front end of the motor base (2), the control panel (3) is electrically connected with the brushless direct current motor driver (21), a motor supporting shell (6) is arranged at the upper end of the motor base (2), the motor supporting shell (6) is in bolted connection with the motor base (2), a spindle head (7) is arranged at the upper end of the motor supporting shell (6), the spindle head (7) is in welded connection with the motor supporting shell (6), and a woodworking tool rest (5) is arranged at the upper end of the bed (1), and the woodworking knife rest (5) is connected with the clamping groove of the bed (1) in a sliding way.

2. The brushless direct current motor direct drive small wood lathe according to claim 1, characterized in that: the inside of spindle head (7) is provided with motor stator (17), the inside of motor stator (17) is provided with motor rotor core (18), and motor rotor core (18) are connected with motor stator (17) electromagnetic transmission, and motor stator (17), motor rotor core (18) and brushless DC motor driver (21) electric connection, the inner wall of motor rotor core (18) is provided with motor spindle (20), and motor spindle (20) and motor rotor core (18) fixed connection.

3. The brushless direct current motor direct drive small wood lathe according to claim 2, characterized in that: the motor is characterized in that a hand wheel (16) is arranged at one end of the motor main shaft (20), the hand wheel (16) is fixedly connected with the motor main shaft (20), an ejector pin (14) is arranged at the other end of the motor main shaft (20), and the ejector pin (14) is connected with the inner wall of the motor main shaft (20) in an interference fit manner.

4. The brushless direct current motor direct drive small wood lathe according to claim 3, characterized in that: and a flange plate (15) is arranged on the outer wall of the motor main shaft (20) at one end of the thimble (14), and the flange plate (15) is fixedly connected with the outer wall of the motor main shaft (20).

5. The brushless direct current motor direct drive small wood lathe according to claim 3, characterized in that: a Hall sensor (19) is arranged on the inner wall of the spindle head (7) close to one side of the hand wheel (16), the Hall sensor (19) is fixedly connected with the inner wall of the spindle head (7), and the Hall sensor (19) is electrically connected with the control panel (3).

6. The brushless direct current motor direct drive small wood lathe according to claim 1, characterized in that: be provided with switch (8) on control panel (3), the both sides of switch (8) are provided with speed governing potentiometre (9) and positive reverse switch (10) respectively, the upper end of speed governing potentiometre (9) is provided with overload protection pilot lamp (11), the upper end of positive reverse switch (10) is provided with overload protection ware (12), the upper end of switch (8) is provided with rotational speed digital display (13), and switch (8), speed governing potentiometre (9), positive reverse switch (10), overload protection pilot lamp (11), overload protection ware (12), rotational speed digital display (13) all with control panel (3) electric connection.