CN210885802U

CN210885802U - Constant-torque cutting mechanism

Info

Publication number: CN210885802U
Application number: CN201921658988.5U
Authority: CN
Inventors: 徐志法; 李红振; 李儒风; 吴晓阳; 瞿伟
Original assignee: Yingtao Tong
Current assignee: Yingtao Tong
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-30
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a permanent torsion cutting mechanism, include: servo motor cam pushes down mechanism, elasticity canceling release mechanical system and cutting mechanism. The technical proposal of the utility model has simple structure, is beneficial to production and is convenient to use; the output torque force value of the servo motor can be fed back in real time, and automatic adjustment and compensation of cutting pressure and cutting depth are achieved. The pressing amount and the pressure of the whole pressing mechanism are fed back to the torque output value of the servo motor in real time. When the torsion value output by the servo motor is set to a certain fixed value and the motion mechanism is not parallel to the surface of the workpiece to be cut, the cutting pressure and the cutting depth can be automatically adjusted and compensated, and the cutting effect of constant pressure or constant depth is realized.

Description

Constant-torque cutting mechanism

Technical Field

The utility model relates to a glass-cutting technical field especially relates to a permanent torsion cutting mechanism.

Background

At present, panel glass cutting machines in the market are mainly divided into a laser cutting type and a knife wheel cutting type, and the knife wheel cutting machines generally adopt a cutting mode of two knife wheels, two sets of pressing mechanisms and an X, Y moving platform to cut glass in a certain direction. When glass is cut, the cutter wheel is controlled by the cutter head pressing mechanism to be pressed down to a certain set position, and then cutting is started along the cutting direction. However, when the cutter head is pressed to a certain position, the cutter head is fixed, if the surface of a workpiece to be cut is not flat or the parallelism of the beam movement mechanism and the cutting platform is not up to standard, the cutting depth is inconsistent, and glass is cut through at a local position to damage the cutting platform and the cutter wheel in serious cases.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to solve the above problem, an object of the present invention is to provide a constant torque cutting mechanism, which comprises:

servo motor cam pushes down the mechanism, servo motor cam pushes down the mechanism and includes: guide rail mounting panel, push down mechanism servo motor, push down shaft coupling, cam and linear guide, one side of guide rail mounting panel is equipped with push down mechanism servo motor, push down mechanism servo motor's output shaft passes the guide rail mounting panel with one side of pushing down the shaft coupling is connected, push down the opposite side of shaft coupling with the hub connection of cam, the opposite side of guide rail mounting panel is equipped with linear guide.

Elastic reset mechanism, elastic reset mechanism includes: spring mounting board, last spring support, spring, lower spring support, slider mounting panel, slider, Z type mounting panel and antifriction bearing, spring mounting board with the upper end of guide rail mounting panel is connected be equipped with two on the spring mounting board go up the spring support with the upper end of spring is connected, the lower extreme of spring with spring support connects down, the spring support down with the slider mounting panel is connected, the slider mounting panel with slider fixed connection, the slider is located linear guide is last, be equipped with one on the slider mounting panel the Z type mounting panel, be equipped with one on the Z type mounting panel antifriction bearing, antifriction bearing with the cam contacts.

A cutting mechanism, the cutting mechanism comprising: motor mounting panel, reinforcing plate, fixed plate, the rotatory servo motor of theta axle, cutting shaft coupling and break bar mechanism, the both sides of motor mounting panel all are equipped with one the reinforcing plate, the one end of reinforcing plate with the motor mounting panel is connected, the other end of reinforcing plate with fixed plate bolted connection, the fixed plate passes through the bolt fastening on the slider mounting panel, the reinforcing plate with the relative slope of motor mounting panel, the upper surface of motor mounting panel is equipped with the rotatory servo motor of theta axle, the output shaft of the rotatory servo motor of theta axle passes the motor mounting panel with the one end of cutting shaft coupling is connected, the other end of cutting shaft coupling with break bar mechanism connects.

In another preferred embodiment, the spring is an extension spring.

In another preferred embodiment, the lower surface of the spring mounting plate is provided with a groove-type photoelectric switch.

In another preferred embodiment, the shaft of the cam is provided with a sensing piece.

In another preferred embodiment, the shaft of the cam is provided at an eccentric position of the cam.

The utility model discloses owing to adopted above-mentioned technical scheme, make it compare the positive effect that has with prior art to be:

(1) the structure is simple, the production is facilitated, and the use is convenient;

(2) the output torque force value of the servo motor can be fed back in real time, and automatic adjustment and compensation of cutting pressure and cutting depth are achieved.

Drawings

Fig. 1 is a schematic view of a mechanism of a constant torque cutting mechanism according to the present invention;

fig. 2 is a schematic structural view of a constant torque cutting mechanism according to the present invention;

fig. 3 is a partial structural front view of a constant torque cutting mechanism according to the present invention;

in the drawings: 1. a servo motor cam pressing mechanism; 2. an elastic reset mechanism; 3. a cutting mechanism; 10. a guide rail mounting plate; 20. a pressing mechanism servo motor; 30. a cam; 40. pressing down the coupler; 50. a rolling bearing; 60. a Z-shaped mounting plate; 70. a linear guide rail; 71. a slider; 80. a slider mounting plate; 90. a theta axis rotation servo motor; 100. a cutter wheel mechanism; 101. a motor mounting plate; 102. a reinforcing plate; 103. a fixing plate; 110. cutting the coupler; 120. a spring mounting plate; 130. an upper spring support; 140. a lower spring support; 150. a spring; 160. a groove-type photoelectric switch; 170. and a sensing piece.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

As shown in fig. 1, 2 and 3, a preferred embodiment constant torque cutting mechanism is shown, comprising:

servo motor cam pushes down mechanism 1, and servo motor cam pushes down mechanism 1 includes: the guide rail mounting plate 10, the pressing mechanism servo motor 20, the pressing coupler 40, the cam 30 and the linear guide rail 70 are arranged, the pressing mechanism servo motor 20 is arranged on one side of the guide rail mounting plate 10, an output shaft of the pressing mechanism servo motor 20 penetrates through the guide rail mounting plate 10 to be connected with one side of the pressing coupler 40, the other side of the pressing coupler 40 is connected with the shaft of the cam 30, and the linear guide rail 70 is arranged on the other side of the guide rail mounting plate 10.

The constant torque cutting mechanism of the above preferred embodiment further comprises: elasticity canceling release mechanical system 2, elasticity canceling release mechanical system includes: the spring mounting plate 120, the upper spring support columns 130, the springs 150, the lower spring support columns 140, the slider mounting plate 80, the slider 71, the Z-shaped mounting plate 60 and the rolling bearing 50 are arranged on the guide rail mounting plate 10, the spring mounting plate 120 is connected with the upper ends of the guide rail mounting plate 10, the two upper spring support columns 130 and the two upper spring support columns 130 are respectively connected with the upper ends of the two springs 150, the lower end seals of the two springs 150 are respectively connected with the two lower spring support columns 140, the two lower spring support columns 140 are both connected with the slider mounting plate 80, the slider mounting plate 80 is fixedly connected with the slider 71, the slider 71 is arranged on the linear guide rail 70, the Z-shaped mounting plate 60 is arranged on the slider mounting plate 80, the rolling bearing 50 is arranged.

The constant torque cutting mechanism of the above preferred embodiment further comprises: cutting mechanism 3, cutting mechanism 3 includes: motor mounting panel 101, reinforcing plate 102, fixed plate 103, theta axis rotation servo motor 90, cutting shaft coupling 110 and break bar mechanism 100, the both sides of motor mounting panel 101 all are equipped with a reinforcing plate 102, the one end of reinforcing plate 102 is connected with motor mounting panel 101, the other end and the fixed plate 103 bolted connection of reinforcing plate 102, fixed plate 103 is fixed in on slider mounting panel 80 through the bolt, reinforcing plate 102 and motor mounting panel 101 incline relatively, the upper surface of motor mounting panel 101 is equipped with theta axis rotation servo motor 90, the output shaft of theta axis rotation servo motor 90 passes motor mounting panel 101 and is connected with the one end of cutting shaft coupling 110, the other end and the break bar mechanism 100 of cutting shaft coupling 110 are connected.

When the glass cutting operation is carried out, the slide block mounting plate 80 and the Z-shaped mounting plate 60 press the cutter wheel assembly downwards along the direction of the linear guide rail 70 under the control of the servo motor cam pressing mechanism 1, so as to realize the primary control of the cutting depth of the cut workpiece; in the operation of the mechanism, the cutting pressure reaction force generated by the knife flywheel mechanism 100 acts on the cam 30 through the rolling bearing 50, wherein the vertical component acting on the cam 30 can generate a resisting torque for the servo motor 20, so as to realize real-time feedback of the torsion force value output by the servo motor 20.

Wherein the weight of the slider mounting plate 80 and the rotary servomotor 90, the cutter wheel assembly 100, etc. mounted thereon is borne by the tensile force generated by the initial elongation of the spring 150.

Further, as a preferred embodiment, the spring 150 is an extension spring.

Further, as a preferred embodiment, a groove-type photoelectric switch 160 is disposed on the lower surface of the spring mounting plate 120.

Further, as a preferred embodiment, a sensing piece 170 is provided on the shaft of the cam 30.

When a user needs to perform glass cutting work, the mechanism is adjusted to a zero position through the groove-shaped photoelectric switch 160 and the sensing piece 170 on the shaft of the cam 30 before cutting is started, and the weight of all parts on the linear guide rail 70 is balanced by the two springs 150. When cutting is started, the servo motor 20 is started, the output shaft thereof drives the cam 30 to rotate, the rolling bearing 50 contacted with the contour of the cam 30 moves downwards along the linear guide 70 under the rotation of the cam 30, and the rotary servo motor 90 and the cutter wheel assembly 100 move downward together with the slider mounting plate 80 until the cutter wheel mechanism 100 comes into contact with the workpiece to be cut and is pressed down to a designated depth, at which time the output torque value of the servo motor 20 is set and kept constant, then, the cutting is started along a certain direction, when the surface of the workpiece to be cut is uneven or the cross beam motion mechanism is not parallel to the cutting platform, because the torsion value output by the servo motor 20 is constant, therefore, the whole mechanism can automatically adjust and compensate along the surface of the workpiece, constantly keep constant cutting pressure and cutting depth and realize better cutting effect.

Further, as a preferred embodiment, the shaft of the cam 30 is provided at an eccentric position of the cam 30. The cutting pressure reaction force when cutting acts on the cam 30 through the rolling bearing 50, wherein the vertical direction component force acting on the cam 30 can generate resisting torque on the push-down mechanism servo motor 20, and real-time feedback of the torsion force value output by the push-down mechanism servo motor 20 is realized through the difference of the change of the vertical profile when the cam 30 rotates.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims

1. A constant torque cutting mechanism, comprising:

servo motor cam pushes down the mechanism, servo motor cam pushes down the mechanism and includes: the device comprises a guide rail mounting plate, a pressing mechanism servo motor, a pressing coupler, a cam and a linear guide rail, wherein the pressing mechanism servo motor is arranged on one side of the guide rail mounting plate, an output shaft of the pressing mechanism servo motor penetrates through the guide rail mounting plate to be connected with one side of the pressing coupler, the other side of the pressing coupler is connected with the shaft of the cam, and the linear guide rail is arranged on the other side of the guide rail mounting plate;

elastic reset mechanism, elastic reset mechanism includes: the spring mounting plate is connected with the upper end of the guide rail mounting plate, the spring mounting plate is provided with two upper spring supports, the two upper spring supports are respectively connected with the upper ends of the two springs, the lower ends of the two springs are respectively connected with the two lower spring supports, the two lower spring supports are both connected with the slider mounting plate, the slider mounting plate is fixedly connected with the slider, the slider is arranged on the linear guide rail, the slider mounting plate is provided with one Z-shaped mounting plate, the Z-shaped mounting plate is provided with one rolling bearing, and the rolling bearing is in contact with the cam;

2. The constant torque cutting mechanism according to claim 1, wherein the spring is an extension spring.

3. The constant torque cutting mechanism according to claim 1, wherein the lower surface of the spring mounting plate is provided with a groove-shaped photoelectric switch.

4. The constant torque cutting mechanism according to claim 1, wherein the cam shaft is provided with a sensing piece.

5. A constant torque cutting mechanism according to claim 1, wherein the shaft of the cam is located eccentrically of the cam.