CN215281051U

CN215281051U - Shaft drive device

Info

Publication number: CN215281051U
Application number: CN202120719356.6U
Authority: CN
Inventors: 郝吉春; 秦瑶仙; 卢红印
Original assignee: WUXI BEST PRECISION MACHINERY CO Ltd
Current assignee: WUXI BEST PRECISION MACHINERY CO Ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-12-24
Anticipated expiration: 2031-04-08

Abstract

The utility model provides a shaft driving device, which is a modularized integral structure and comprises a base, a first driving piece, a second driving piece and a force sensor, wherein the first driving piece is arranged on the base, and the power output end of the first driving piece is connected with the force sensor so as to lead the force sensor to move along a straight line, and the other end of the force sensor is connected with one end of the second driving piece; the first driving piece comprises a driving motor and a ball screw, the driving motor is fixed at one end of the base through a motor base, and one end of the ball screw is connected with the output shaft end of the driving motor; the second driving part comprises a spindle seat and an electric spindle, the spindle seat is arranged on one side of the base far away from the first driving part in a sliding mode, and the electric spindle penetrates through the spindle seat; the utility model discloses the whole dismouting of modularization configuration convenience realizes the real-time supervision feedback cutter atress condition, provides data support for the later stage debugging.

Description

Shaft drive device

Technical Field

The utility model relates to a parts machining device, especially a shaft drive.

Background

With the continuous development of the mechanical industry, the requirements on the processing quality are also continuously improved; in general, an operator modifies machining parameters according to machining experience to change the feeding amount of a cutter, so that the machining quality is improved, but the technical requirement and experience requirement on the operator are high, the modification of the parameters can cause the cutter to break, the machining progress is influenced, and the method is not suitable for machining of new materials and parts with new structures; under the condition, the real stress condition of the cutter in the machining process is known and collected, and the method has instructive significance for the improvement of later machining parameters and mechanical structures.

At present, a shaft driving mechanism and equipment are integrated, parameter debugging of a cutter is relatively blind, a large amount of time is wasted, machining efficiency is low, and machining quality of workpieces is poor.

Disclosure of Invention

To exist not enough among the prior art, the utility model provides a shaft drive device has the atress feedback function, feeds back the cutter atress condition in the course of working in real time, is convenient for carry out corresponding improvement to machining parameter and mechanical structure, is favorable to more quick improvement processingquality. The utility model adopts the technical proposal that:

a shaft driving device comprises a base, a first driving piece, a second driving piece and a force sensor, wherein the base, the first driving piece, the second driving piece and the force sensor form a modularized whole; the first driving piece is arranged on the base, the power output end of the first driving piece is connected with the force sensor, so that the force sensor can move along a straight line, and the other end of the force sensor is connected with one end of the second driving piece.

Further, the first driving part comprises a driving motor and a ball screw, the driving motor is fixed at one end of the base through a motor base, and one end of the ball screw is connected with an output shaft end of the driving motor.

Furthermore, the power output end of the first driving piece is a nut seat of a ball screw;

the force sensor is arranged on a nut seat of the ball screw.

Further, the second driving member is slidably disposed on the base, so that the second driving member and the force sensor move synchronously.

Furthermore, the second driving member includes a spindle seat and an electric spindle, the spindle seat is slidably disposed on a side of the base away from the first driving member, and the electric spindle is disposed in the spindle seat in a penetrating manner.

Furthermore, the outer side surface of the spindle seat is provided with an induction sheet, and a rear limit induction switch and a front limit induction switch are arranged on the base, are positioned on the same side of the induction sheet and are positioned on two sides of the induction sheet; the front limit inductive switch, the rear limit inductive switch and the inductive sheet are positioned on the same straight line.

Further, still include the chute, the chute erects between base and second driving piece.

Furthermore, the cabling rack comprises a first drag chain support, a second drag chain support and a drag chain, the first drag chain support is fixed on the base and is arranged on the upper side of the driving motor in an overhead mode, and the second drag chain support is fixed on one side face, close to the driving motor, of the main shaft seat; and two ends of the drag chain are respectively connected with the first drag chain support and the second drag chain support.

Furthermore, a quick-connection-plug connector is arranged on the first drag chain bracket.

Further, a control system for controlling each electrical element is also included.

The utility model has the advantages that:

due to the modularized integral design, the whole device can be integrally disassembled on processing equipment, so that the device is convenient to maintain independently;

the force sensor feeds back the stress condition of the cutter in real time, provides data support for adjusting machining parameters and a mechanical structure, facilitates later-stage targeted debugging of the machining parameters of the cutter, and improves the machining quality and efficiency;

the overhead type cabling rack is provided with the quick plug connectors of electric, gas, liquid and other pipelines, the electric, gas and liquid pipelines are connected to the quick plug connectors after being combed, the quick plug connectors are quickly separated from the equipment circuit when not in use, and the overall modularized effect is improved.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a plan view of the present invention.

In the figure: 1-base, 2-electric spindle, 3-spindle seat, 4-drag chain, 5-first drag chain support, 6-driving motor, 7-motor seat, 8-coupler, 9-lead screw bearing seat, 10-guide rail, 11-ball screw, 12-rear limit induction switch, 13-sensor fixing seat, 14-force sensor, 15-induction sheet, 16-front limit induction switch, 17-second drag chain support, 501-support leg, 502-vertical plate, 503-quick connector and 504-top plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1-2, the present invention provides a shaft driving device, which is a modular structure, and includes a base 1, a first driving member, a second driving member, a force sensor 14, a cabling rack, and a control system capable of connecting to each electrical component; the control system provides intelligent control for each electrical appliance element;

the first driving piece comprises a driving motor 6 and a ball screw 11, a motor base 7 is mounted at one end of the base 1 through a screw, the driving motor 6 is fixed on the side face of the motor base 7, and a round hole for an output shaft of the driving motor 6 to penetrate through is formed in the motor base 7; an output shaft of the driving motor 6 is connected with a ball screw 11 through a coupler 8, a screw bearing seat 9 is fixed on the base 1, and the ball screw 11 penetrates through the screw bearing seat 9; the screw bearing seat 9 provides a rotating carrier for the ball screw 11, so that the running stability of the ball screw 11 is improved;

the second driving piece comprises a spindle seat 3 and an electric spindle 2, the surface of the base 1 is parallel to the ball screw 11 and is provided with two guide rails 10 positioned on two sides of the ball screw 11, a sliding block is arranged on the guide rails 10 in a sliding manner, the spindle seat 3 is fixed on the sliding block and is positioned on the upper side of the ball screw 11, the spindle seat 3 is linearly moved along the guide rails 10, the electric spindle 2 penetrates through the spindle seat 3, and one end of the electric spindle 2 is used for mounting a cutter;

a sensor fixing seat 13 is arranged on a nut seat of the ball screw 11, a force sensor 14 is fixed on the sensor fixing seat 13, and the other end of the force sensor 14 is fixed on the side surface of the spindle seat 3 close to the driving motor 6;

the cabling rack comprises a first drag chain support 5, a second drag chain support 17 and a drag chain 4, wherein the first drag chain support 5 is fixed on the base 1 and is overhead on the upper side of the driving motor 6; the first drag chain support 5 comprises a support leg 501, a vertical plate 502, a top plate 504 and a quick connector 503, wherein the support leg 501 is erected on the base 1 and provides an installation space for the driving motor 6, the vertical plate 502 is fixed at the top of the support leg 501, the top plate 504 is fixed at the top of the vertical plate 502, the quick connector 503 is configured on the side surface of the vertical plate 502, and two ends of the drag chain 4 are respectively connected with the first drag chain support 5 and the top plate 504; wherein the drag chain 4 can further play a role in guiding;

specifically, the driving, controlling, lubricating and cooling pipelines on the electric spindle 2 penetrate into the drag chain 4, extend out from the other end of the drag chain 4 and then are connected to the quick connector 503, and are connected with an external control system through the quick connector 503 to intelligently control the operation, cooling and lubricating of the electric spindle 2.

As an embodiment of the present invention, the outer side surface of the spindle base 3 is provided with the sensing piece 15, and the base 1 is provided with the rear limit sensing switch 12 and the front limit sensing switch 16 on the same side as the sensing piece 15 and on both sides of the sensing piece 15; the front limit inductive switch 16, the rear limit inductive switch 12 and the inductive sheet 15 are positioned on the same straight line; specifically, the rear limit inductive switch 12 and the front limit inductive switch 16 ensure that the electric spindle 2 moves back and forth within an allowable range by detecting the position of the induction sheet 15, and when the electric spindle 2 reaches a limit position, that is, the induction sheet 15 touches the front limit switch or the rear limit switch, a signal is sent to the control system, and the control system controls the driving motor 6 and other components to stop working, so as to avoid damage to the device.

As the utility model discloses an other embodiments, first driving piece is cylinder, pneumatic cylinder or electric putter, and sensor fixing base 13 is fixed at the output of first driving piece, can realize the reciprocating motion of spindle drum 3 and electric main shaft 2 from this equally.

In the present invention, the electrical components except the electric spindle 2 are all connected to the external control system.

The implementation mode is as follows:

when machining is needed, the driving motor 6 is started, an output shaft of the driving motor 6 rotates, the ball screw 11 is driven to rotate around the bearing center of the screw bearing seat 9 through the coupler 8, the nut seat of the ball screw is driven to move forward, the force sensor 14 on the sensor fixing seat 13 is driven to move forward, the driving motor 6 stops working when the force sensor 14 drives the main shaft seat 3 to move forward to a machining area, and a cutter on the electric main shaft 2 contacts a workpiece and performs machining; the reaction force of the workpiece to the tool is transmitted to the force sensor 14 through the electric spindle 2 and the spindle seat 3, and the pressure-sensitive unit of the force sensor 14 is stressed to output the stress value outwards; meanwhile, the rear limit inductive switch 12 and the front limit inductive switch 16 ensure that the electric spindle 2 moves in an allowable range by detecting the position of the induction sheet 15, and send a signal to a control system when the electric spindle 2 reaches a limit position;

when the electric spindle 2 needs to be retracted, the output shaft of the driving motor 6 rotates reversely, the ball screw 11 is driven by the coupler 8 to rotate around the bearing center of the screw bearing seat 9, the nut seat is driven to retract, the force sensor 14 on the sensor fixing seat 13 is driven to retract, and then the spindle seat 3 and the electric spindle 2 retract and exit from a processing area.

The utility model discloses a force transducer 14 sets up between nut seat and the spindle seat 3 of ball 11, receives the reaction force of electricity main shaft 2, realizes the real-time supervision feedback of electricity main shaft 2 axial force; quick separation of electric, gas and liquid pipelines is realized by installing the quick connection-pegs 503 of the electric, gas and liquid pipelines on the first drag chain support 5, so that the modularized quick assembly and disassembly of the whole mechanism are realized.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A shaft drive device characterized in that: the device comprises a base (1), a first driving piece, a second driving piece and a force sensor (14), wherein the base (1), the first driving piece, the second driving piece and the force sensor (14) form a modularized whole; the first driving piece is arranged on the base (1), the power output end of the first driving piece is connected with the force sensor (14), so that the force sensor (14) moves along a straight line, and the other end of the force sensor (14) is connected with one end of the second driving piece.

2. The shaft drive device according to claim 1, characterized in that: the first driving piece comprises a driving motor (6) and a ball screw (11), the driving motor (6) is fixed at one end of the base (1) through a motor base (7), and one end of the ball screw (11) is connected with an output shaft end of the driving motor (6).

3. A shaft drive arrangement as claimed in claim 2, characterized in that: the power output end of the first driving piece is a nut seat of a ball screw (11);

the force sensor (14) is arranged on a nut seat of the ball screw (11).

4. The shaft drive device according to claim 1, characterized in that: the second driving piece is arranged on the base (1) in a sliding mode, so that the second driving piece and the force sensor (14) move synchronously.

5. The shaft drive device according to claim 4, characterized in that: the second driving part comprises a spindle seat (3) and an electric spindle (2), the spindle seat (3) is arranged on one side, far away from the first driving part, of the base (1) in a sliding mode, and the electric spindle (2) penetrates through the spindle seat (3).

6. The shaft drive device according to claim 5, characterized in that: an induction sheet (15) is arranged on the outer side surface of the spindle seat (3), and a rear limit induction switch (12) and a front limit induction switch (16) are arranged on the base (1) on the same side as the induction sheet (15) and on two sides of the induction sheet (15); the front limit inductive switch (16), the rear limit inductive switch (12) and the inductive sheet (15) are positioned on the same straight line.

7. Shaft drive as claimed in claim 1, 2 or 5, characterized in that: the rack is erected between the base (1) and the second driving piece.

8. The shaft drive device according to claim 7, characterized in that: the cabling rack comprises a first drag chain support (5), a second drag chain support (17) and a drag chain (4), wherein the first drag chain support (5) is fixed on the base (1) and is arranged on the upper side of the driving motor (6) in an overhead mode, and the second drag chain support (17) is fixed on one side face, close to the driving motor (6), of the spindle seat (3); and two ends of the drag chain (4) are respectively connected with the first drag chain support (5) and the second drag chain support (17).

9. The shaft drive device according to claim 8, characterized in that: and a quick connection-peg (503) is arranged on the first drag chain bracket (5).

10. A shaft drive arrangement as claimed in any one of claims 1 to 9, characterized in that: a control system for controlling the electrical components is also included.