CN113478659B

CN113478659B - Anti-vibration disc cutting mechanism, disc cutting machine and control method of anti-vibration disc cutting mechanism

Info

Publication number: CN113478659B
Application number: CN202110748791.6A
Authority: CN
Inventors: 林智芳; 洪培英; 华新陆; 林榕栋
Original assignee: Quanzhou Haiende Electromechanical Technology Development Co ltd
Current assignee: Quanzhou Haiende Electromechanical Technology Development Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2024-04-05
Anticipated expiration: 2041-07-02
Also published as: CN113478659A

Abstract

The invention discloses an anti-vibration disc cutting mechanism, a disc cutting machine and a control method thereof, which belong to the technical field of stone machining mechanical equipment, and comprise a circular saw blade and a saw blade rotating shaft for driving the circular saw blade, wherein the center of the circular saw blade is fixedly arranged at one end of the saw blade rotating shaft, and a disc fixing assembly for fixing the non-center position of the circular saw blade is also arranged on the saw blade rotating shaft; the control method comprises the following steps: starting a cutting machine, controlling a horizontal cylinder to adjust the circular saw blade to a specified transverse position, entering a downward feeding mode, and starting cutting to a specified depth; entering a forward feeding mode, and continuing cutting to a specified distance; and keeping the saw blade to rotate continuously, and lifting the saw blade of the cutting machine to finish cutting once. The beneficial effects of the invention are as follows: the novel circular saw blade is characterized in that the novel circular saw blade is easy to vibrate in the operation process, unstable, the non-center position of the circular saw blade is fixed, the stability of the whole structure of the circular saw blade is enhanced, the vibration and the saw blade collapse are difficult to occur, and the novel circular saw blade is safer.

Description

Anti-vibration disc cutting mechanism, disc cutting machine and control method of anti-vibration disc cutting mechanism

Technical Field

The invention relates to the technical field of stone machining mechanical equipment, in particular to an anti-vibration disc cutting mechanism, a disc cutting machine and a control method of the anti-vibration disc cutting mechanism.

Background

The existing mine quarrying machine is commonly used, single saw blades are arranged on a single saw machine at the initial stage, two ends of a main shaft of the single saw machine are respectively provided with a plurality of saw blades, and the quarrying machine is more convenient to quarry stone and gradually improves quarrying efficiency. However, the properties of the rock materials mined by the existing rock quarrying machine are not completely the same in the mining process, the rock materials of one part on the mine are possibly higher or lower in hardness than the rock materials of the other part, at the moment, the actions of resistance and the like of the rock materials with different hardness are different when the saw blade cuts the rock materials, the existing rock quarrying machine cannot adjust the rotation speed of the saw blade and the feeding movement in the downward and forward directions in the cutting process, the cutting of the rock materials with different hardness is far insufficient, the conditions of saw blade vibration, collapse and the like are easy to generate in operation, and the operation efficiency is reduced; in particular, the diameter of the existing saw blade for cutting quarrying is generally large, the saw blade is easy to vibrate during operation, abnormal vibration is more frequent when stones with different physical properties are encountered, the saw blade is easy to scatter after collapse, pedestrians are easy to be injured, and potential safety hazards exist.

For example, the invention patent with publication number of CN102022117B discloses a double-spliced adjustable-pitch mine quarrying machine, which comprises a machine base, upright posts and a sawing machine, wherein sliding plates with transverse guide grooves are respectively pivoted on guide rails of the two upright posts, two ends of a gearbox are slidingly pivoted in the transverse guide grooves of the two sliding plates, and a synchronous lifting driving mechanism is pivoted between the two sliding plates and the upright posts on the same side; the gearbox is divided into a gear cavity and a cavity, the gear cavity is of a triaxial structure, the gear cavity is sequentially provided with a motor shaft, an intermediate shaft and an output shaft, the triaxial structure is meshed and transmitted through two groups of gear sets, and the end face of the motor is suspended and fixed on the side face of the gearbox; the sliding plate is pivoted with two gearboxes of independent sawing machines side by side, the two gearboxes are mutually rotated by 180 degrees, a motor hung on the side surface of each gearbox can be inserted into a cavity of the other gearbox, and saw blades on the output shafts of the two gearboxes are positioned on the far side and on the same axis; a baffle plate is fixed at the middle position of the two sliding plates, a driving oil cylinder is respectively arranged between the baffle plate and the two gearboxes, and the position of the saw blade is adjusted by the action of the oil cylinder. This quarrying machine can't be adjusted to saw bit rotational speed, the feed motion of forward direction down in cutting process to lead to the saw bit to break out etc. condition to take place easily, reduce saw bit life and influence operating efficiency, the raise cost, and the saw bit diameter of current cutting machine is great, just takes place the vibration easily during its operation, and then further reduces saw bit life, and lead to the saw bit to break out four in the ease under the unusual vibration, hurt the pedestrian.

Disclosure of Invention

In order to solve the problems that in the prior art, the stone in one part of the mine mined by the stone mining machine is likely to have higher or lower hardness than the stone in the other part, the saw blade of the prior stone mining machine is large in diameter, the saw blade of the prior stone mining machine is easy to vibrate, and when the stone with different density and hardness is cut, the vibration condition is more serious, and the saw blade is more easy to collapse, hurt pedestrians and the like. The invention provides an anti-vibration disc cutting mechanism, a disc cutting machine and a control method thereof, wherein the disc fixing assembly is used for fixing the non-center position of a circular saw blade, so that the problem that the traditional circular saw blade is easy to vibrate and damage due to the fact that the diameter of the saw blade is large is solved, the stability of the saw blade during cutting is enhanced, the saw blade is not easy to vibrate and collapse due to vibration, and the use is safer. The specific technical scheme is as follows:

the utility model provides an anti vibration disc cutting mechanism, includes the saw blade and is used for driving the saw blade's saw bit rotation axis, saw blade center fixed mounting is in saw bit rotation axis one end, still install on the saw bit rotation axis and be used for right the fixed disc fixed subassembly of non-central position of saw blade.

Preferably, the disc fixing assembly comprises a disc frame body and more than 3 supporting rod assemblies uniformly distributed on the surface of the disc frame body along the circumferential direction, the center of the disc frame body is fixedly arranged on the saw blade rotating shaft, and the axis of each supporting rod assembly is parallel to the saw blade rotating shaft.

Preferably, each of said support bar assemblies is equidistant from said saw blade rotation axis center axis.

Preferably, the radius R0 of the circular saw blade is 2.5m or more, and the distance r1=r0/(10-14) from the center axis of the support rod assembly to the center axis of the saw blade rotation shaft.

Preferably, the support rod assembly comprises a support rod main body and a support rod fixing assembly for fixing the circular saw blade to the end of the support rod main body, wherein an external thread is formed at one end of the support rod main body, and a support rod mounting hole for the support rod main body to pass through is formed at the position of the circular saw blade corresponding to the support rod main body.

Preferably, the support rod fixing assembly comprises a first stop block and a second stop block for fixing two sides of the circular saw blade, the first stop block and the second stop block are clung to the side face of the circular saw blade, and the centers of the first stop block and the second stop block are in threaded connection with the support rod main body.

Preferably, the side of the first stop, which is away from the circular saw blade, is provided with an elastic fixing component for applying pressure to the circular saw blade.

When the saw blade is subjected to severe vibration, the first stop block is subjected to transverse acting force, at the moment, the first stop block is possibly damaged due to the tendency of transverse movement of the severe vibration, and then the saw blade cannot be locked; if the saw bit takes place violent vibration, lead to first dog damage, when unable to fix the saw bit, the fixed subassembly of elasticity that sets up can also play the effect of temporarily fixing the saw bit under the effect of spring, makes the saw bit can not break away from the rotation axis because of the vibration to the effort that produces when vibrating carries out certain absorption, reduces the harm to saw bit and rotation axis, better protection operation safety, reduction loss of property.

Preferably, the elastic fixing component comprises an elastic fixing seat, elastic fixing rods uniformly distributed in the elastic fixing seat along the circumferential direction and pressure springs sleeved on the elastic fixing rods; the elastic fixing seat is fixedly sleeved at the end part of the supporting rod main body in the center, and one side of the elastic fixing seat, which is close to the first stop block, is propped against the first stop block.

Preferably, a fixing rod chute is formed on the first stop block at a position corresponding to the elastic fixing rod, and the elastic fixing rod is sleeved inside the fixing rod chute and can slide along the axial direction of the elastic fixing rod.

Preferably, one end of the pressure spring is fixedly arranged on the elastic fixing seat, and the other end of the pressure spring is fixedly arranged on the first stop block at the peripheral position of the fixed rod chute.

Preferably, the pressure spring is a tower-shaped spring, and the larger radius end of the pressure spring is fixedly arranged at the peripheral position of the fixed rod chute on the first stop block.

The invention also relates to a cutting disc machine comprising a cutting disc mechanism according to claims 1-11.

Preferably, the device further comprises a frame, a track, a rotation control assembly for controlling the rotation of the circular saw blade, a lifting device for controlling the lifting of the circular saw blade and a feeding device for controlling the feeding of the circular saw blade back and forth along the track direction, wherein the frame is arranged on the track and can move along the length direction of the track, the lifting device is fixedly arranged on the frame, and the rotation control assembly is arranged at the output end of the lifting device and can move up and down on the frame; the saw blade rotating shaft is fixedly arranged at the output end of the rotating control assembly; and a controller for controlling the lifting, forward and backward feeding and rotation of the circular saw blade is also arranged on the frame.

Because the stone is in different positions on the stone picking mountain, the hardness, density and other physical properties of the stone at different positions can be changed to a certain extent, so that the difference exists, the traditional cutting machine cuts at a set working speed in the process of cutting the stone picking, the resistance is suddenly increased when the harder stone at a certain position is cut, the rotation speed of the saw blade and the feeding speed downwards and forwards cannot be adjusted in time, and then the situation of crushing the saw blade and even burning the cutting machine occurs, so that serious potential safety hazards are brought; the feeding device, the lifting device and the variable speed motor are controlled by the controller, so that the rotating speed of the saw blade and the feeding speed of the saw blade downwards and forwards are controlled, when stones with different hardness are cut, the rotating speed of the saw blade and the working speed downwards and forwards can be adjusted according to the change of the stones, and when the saw blade is cut, the saw blade is not easy to collapse, the normal use of the saw blade is ensured, potential safety hazards are not easy to generate, and the cutting speed of the saw blade can be kept in a reasonable range, so that the working efficiency is not influenced.

Preferably, the controller output is connected to the feeding device, the lifting device and the rotation control assembly input.

Preferably, the rotation control assembly comprises a control box body, a variable speed motor and a saw blade rotating shaft, wherein the variable speed motor is fixedly installed on the control box body, the saw blade rotating shaft is installed on the side wall of the control box body, and the output end of the variable speed motor controls the saw blade rotating shaft to rotate.

Preferably, an input gear is mounted on the output shaft of the variable-speed motor, an output gear is mounted on the saw blade rotating shaft, and the input gear drives the output gear to rotate.

Preferably, the rotation control assembly further comprises a transmission shaft, the transmission shaft is mounted on the control box body, a first transmission gear and a second transmission gear are mounted on the transmission shaft, the first transmission gear is meshed with the input gear, and the second transmission gear is meshed with the output gear.

Preferably, the frame comprises two upright posts arranged along the front-back direction of the track, and the lifting device is fixedly arranged on the upright posts.

Preferably, a lifting slide rail is arranged on the upright post along the vertical direction, a slide plate is arranged at the output end of the lifting device, the slide plate is positioned on the lifting slide rail and can slide along the length direction of the slide rail, and the rotation control assembly is arranged on the slide plate.

Preferably, a horizontal sliding rail is arranged on one side, far away from the upright post, of the sliding plate, a horizontal sliding block is fixedly arranged at the position, corresponding to the horizontal sliding rail, of the rotation control assembly, and the horizontal sliding block is sleeved inside the horizontal sliding rail.

Preferably, the upright post is provided with a horizontal cylinder, the extension direction of the horizontal cylinder is parallel to the length direction of the horizontal sliding rail, and the rotation control assembly is fixedly arranged at the output end of the horizontal cylinder.

Preferably, the output end of the controller is connected with the input ends of the feeding device, the lifting device, the horizontal cylinder and the rotation control assembly.

Preferably, the variable speed motor controls the saw blade to rotate through a saw blade rotating shaft, a resistance sensor for monitoring the resistance of the saw blade and a vibration sensor for monitoring the vibration of the rotating shaft are arranged on the saw blade rotating shaft, and the output end of the resistance sensor and the output end of the vibration sensor are connected with the input end of the controller.

Preferably, a display screen for displaying cutting parameters and an input port for setting the cutting parameters and the cutting modes are arranged on the cutting machine.

The invention also relates to a control method of the disc cutter, which comprises the following control steps:

Step one, starting a cutting machine, controlling a horizontal cylinder to adjust a circular saw blade to a specified transverse position, entering a downward feeding mode, and starting cutting until the circular saw blade is cut to a specified depth;

step two, entering a forward feeding mode, and continuing cutting until a specified distance is reached;

and thirdly, keeping the saw blade to continuously rotate, and lifting the saw blade of the cutting machine to finish one-time cutting operation.

Preferably, in the first and second steps, the vibration condition of the rotation shaft of the saw blade is monitored, and when the vibration amplitude is greater than the set interval, the rotation angular velocity of the saw blade is reduced or the feed speed is reduced until the vibration amplitude is less than or equal to the set range.

Preferably, the setting range of the vibration amplitude is any range from 6 to 18 micrometers, preferably from 10 to 12 micrometers.

Preferably, when the vibration amplitude is greater than the first set interval upper limit, the specific response steps are as follows:

step one, reducing the feeding speed until the vibration amplitude is reduced below the lower limit of the first set interval;

if the feeding speed is reduced to half of the initial speed and the vibration amplitude is not reduced below the lower limit of the first set interval, simultaneously reducing the feeding speed and the rotation angular speed until the vibration amplitude is reduced below the lower limit of the first set interval;

Step three, after the vibration amplitude is reduced below the lower limit of the first set interval, keeping the feeding speed and the rotation angular velocity unchanged, and when the vibration amplitude is reduced below the lower limit of the second set interval, increasing the rotation angular velocity to a rotation velocity which is not influenced by the vibration amplitude; then gradually increasing the feeding speed to the feeding speed which is not affected by the amplitude.

Preferably, in the third step, when the rotation angular velocity or the feed velocity is increased, if the vibration amplitude reaches the upper limit of the second set section or more, the rotation angular velocity and the feed velocity are maintained unchanged until the vibration amplitude decreases to the lower limit of the second set section or less, and then the rotation angular velocity or the feed velocity is increased.

Preferably, when the vibration amplitude is greater than the first set interval, the law of variation of the feed speed satisfies the following formula:

wherein v0 represents the feed speed without being affected by the amplitude, n is an integer of 1 or more, preferably 3, and formula (1) is triggered when the vibration amplitude is greater than the upper limit of the first set section, and is terminated when the vibration amplitude reaches the lower limit of the first set section; the formula (2) is triggered when the rotation speed has been increased to a rotation angular speed not affected by the amplitude, the amplitude is smaller than the lower limit of the second set section and the feeding speed is smaller than v0/2, and is terminated when v0' =v0/2 or when the amplitude reaches above the upper limit of the second set section; the formula (3) is triggered when the rotation angular velocity has been increased to a rotation angular velocity that is not affected by the amplitude, and when the amplitude is smaller than the second set section upper limit and v 0'. Gtoreq.v0/2, and is terminated when the feeding velocity reaches v0 or when the amplitude reaches above the second set section upper limit; where v0 "is the initial feed rate at the time of triggering.

Preferably, when the vibration amplitude is greater than the first set interval, the variation law of the rotation angular velocity satisfies the following formula:

wherein v2 represents the rotational speed without being affected by the amplitude, n is an integer of 1 or more, preferably 3, and formula (4) is triggered when the vibration amplitude has not decreased below the lower limit of the first set interval after the feed speed has decreased to half of its initial speed, and is terminated when the vibration amplitude reaches the lower limit of the first set interval; equation (5) is triggered when the vibration amplitude falls below the second set section lower limit, and is terminated when the vibration amplitude reaches above the second set section upper limit or when the rotation angular velocity reaches v 0.

Preferably, the first set interval of the vibration amplitude is 10-18 micrometers, preferably 10-12 micrometers; the second set interval of the vibration amplitude is 6-10 micrometers, preferably 6-8 micrometers.

Preferably, in the downward feeding mode, the downward feeding speed v1 satisfies the following relationship:

where f01 denotes a downward feeding standard frictional resistance, v01 denotes a downward feeding set speed, k11 denotes a first frictional threshold coefficient, and k12 denotes a second frictional threshold coefficient.

Preferably, the first friction threshold coefficient k11 satisfies: 0.05< k11 is less than or equal to 0.20, and the second friction threshold coefficient k12 meets the following conditions: k12 is more than 0.30 and less than or equal to 0.50.

Preferably, in the downward feeding mode, the saw blade rotational angular velocity v2 satisfies the following relationship:

where f01 denotes a downward feeding standard frictional resistance, v02 denotes a downward feeding saw blade rotation setting angular velocity, k21 denotes a third frictional threshold coefficient, and k22 is a fourth frictional threshold coefficient.

Preferably, the third friction threshold coefficient k21 satisfies: 0.05< k21 is less than or equal to 0.20, and the fourth friction threshold coefficient k22 meets the following conditions: k22 is less than or equal to 0.50 and 0.30.

Preferably, the downward feeding standard frictional resistance f01 satisfies the following relationship:

wherein R represents the radius of the saw blade, L represents the sawing depth of the saw blade downwards, k01 is the coefficient of friction resistance of the side surface of the saw blade, k02 is the coefficient of friction resistance of the saw blade, v01 represents the downwards feeding set speed, and v02 represents the downwards feeding set angular speed of rotation of the saw blade.

Preferably, in the forward feed mode, the forward feed speed v3 satisfies the following relationship:

where f02 denotes a forward-feed standard frictional resistance, v01 denotes a forward-feed set speed, k31 denotes a fifth frictional threshold coefficient, and k32 denotes a sixth frictional threshold coefficient.

Preferably, the fifth friction threshold coefficient k31 satisfies: 0.05< k31 is less than or equal to 0.20, and the sixth friction threshold coefficient k32 meets the following conditions: 0.30< k32 < 0.50.

Preferably, in the forward feed mode, the saw blade rotational angular velocity v4 satisfies the following relationship:

where f02 denotes a forward-feed standard frictional resistance, v02 denotes a forward-feed saw blade rotation setting angular velocity, k41 denotes a seventh friction threshold coefficient, and k22 is an eighth friction threshold coefficient.

Preferably, the seventh friction threshold coefficient k41 satisfies: 0.05< k41 is less than or equal to 0.20, and the eighth friction threshold coefficient k42 meets the following conditions: k42 is less than or equal to 0.30 and less than or equal to 0.50.

Preferably, the forward feed standard frictional resistance f02 satisfies the following relationship:

wherein R represents the radius of the saw blade, L0 represents the saw blade sawing depth set value, k01 is the saw blade side friction resistance coefficient, k02 is the kerf friction resistance coefficient, v03 represents the forward feeding set speed, and v04 represents the forward feeding saw blade rotation set angular speed.

The beneficial effects are that:

the technical scheme of the invention has the following beneficial effects:

(1) Because the stone is in different positions on the stone picking mountain, the hardness, density and other physical properties of the stone at different positions can be changed to a certain extent, so that the difference exists, the traditional cutting machine cuts at a set working speed in the process of cutting the stone picking, the resistance is suddenly increased when the harder stone at a certain position is cut, the rotating speed and the feeding speed of the saw blade downwards and forwards cannot be adjusted in time, and then the situation of crushing the saw blade and even burning the cutting machine occurs, even severe vibration occurs, so that the saw blade is broken and scattered, and pedestrians are injured, thereby bringing serious potential safety hazards; the feeding device, the lifting device and the variable speed motor are controlled by the controller, so that the rotating speed of the saw blade and the feeding speed of the saw blade downwards and forwards are controlled, when stones with different hardness are cut, the rotating speed of the saw blade and the working speed downwards and forwards can be adjusted according to the change of the stones, and when the saw blade is cut, the saw blade is not easy to collapse, the normal use of the saw blade is ensured, potential safety hazards are not easy to generate, and the cutting speed of the saw blade can be kept in a reasonable range, so that the working efficiency is not influenced.

(2) The resistance sensor and the vibration sensor for monitoring the resistance and vibration of the saw blade are arranged on the rotating shaft of the saw blade, then the obtained resistance data and vibration data are transmitted to the controller, and the controller automatically adjusts the rotating speed, the downward feeding speed and the forward feeding speed of the saw blade according to the fed-back resistance and vibration data, so that the adjustment is more real-time, accurate and rapid.

(3) The disc fixing assembly is arranged to fix the non-center position of the circular saw blade, so that the problems that the circular saw blade used conventionally is large in diameter, easy to vibrate in the operation process, unstable and easy to collapse are solved, the non-center position of the rancour circular saw blade is fixed, the stability of the whole structure of the circular saw blade is enhanced, the problem that the circular saw blade is difficult to vibrate when the circular saw blade cuts, and the saw blade is difficult to collapse due to vibration are solved, and the operation of the saw blade is safer; monitoring the vibration condition of the saw blade rotating shaft, and reducing the rotation angular velocity of the saw blade when the vibration amplitude is larger than a set value until the vibration amplitude is smaller than or equal to a set range; the vibration amplitude of the saw blade is monitored, vibration data are fed back to the controller to adjust the rotating speed, and therefore early warning can be effectively achieved, the saw blade is prevented from being damaged due to the fact that the saw blade is subjected to strong vibration during working, and even pedestrians are injured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a preferred disc retaining assembly of the present invention;

FIG. 2 is a schematic view of a disc fixing assembly according to a preferred embodiment of the present invention;

FIG. 3 is a schematic diagram of a preferred cutter control system according to the present invention;

FIG. 4 is a front view of a preferred cutter of the present invention;

FIG. 5 is a right side view of the preferred cutting machine of the present invention;

FIG. 6 is a top view of a preferred cutting machine of the present invention;

FIG. 7 is a top view of a second preferred cutter of the present invention;

FIG. 8 is a top view of a preferred cutting machine of the present invention;

FIG. 9 is a top view of a preferred cutting machine of the present invention;

FIG. 10 is a schematic view of a preferred mounting sleeve of the present invention;

FIG. 11 is a schematic view of a preferred stationary cylinder of the present invention;

FIG. 12 is a schematic view of a preferred rotation shaft limiting cartridge of the present invention;

FIG. 13 is a second schematic view of a preferred rotation shaft limiting cylinder of the present invention;

FIG. 14 is a schematic view of a preferred rotating shaft sleeve assembly of the present invention.

In the figure: 1. a circular saw blade; 2. lifting the sliding rail; 21. a slide plate; 3. a control box body;

31. a variable speed motor; 311. an input gear; 32. a transmission shaft; 321. a first transmission gear;

322. a second transmission gear; 33. a saw blade rotation shaft; 331. an output gear;

332. a rotary limiting block; 333. a positioning block; 34. a rotation shaft limiting cylinder;

341. moving the limit groove; 342. an annular limit groove; 343. a connecting ring body;

344. a connecting ring connecting part; 35. a fixed cylinder; 351. a fixing pin; 36. fixing the mounting sleeve; 37. a rotation shaft limiting cylinder;

38. a rotation shaft positioning cylinder; 381. a rotating shaft positioning sleeve;

382. a rotating shaft positioning buffer assembly; 4. feeding a motor; 41. a speed change mechanism; 42. a shaft lever; 43. a rail wheel; 44. a chain;

5. a column; 51. a bottom plate; 52. a top plate;

53. a column slider; 54. a column slide rail; 55. the upright post is used for fixing the air cylinder;

551. the upright post is used for fixing the sliding block; 56. the upright post is fixed with the chute; 6. a track; 7. a horizontal cylinder;

8. a controller; 9. a support bar main body; 91. a first stopper; 92. a second stopper;

93. An elastic fixing seat; 94. and an elastic fixing rod.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.

As shown in fig. 1-2, an anti-vibration disc cutting mechanism comprises a circular saw blade 1 and a saw blade rotating shaft 33 for driving the circular saw blade 1, wherein the center of the circular saw blade 1 is fixedly arranged at one end of the saw blade rotating shaft 33, and a disc fixing assembly for fixing the non-center position of the circular saw blade 1 is further arranged on the saw blade rotating shaft 33.

As a preferred embodiment, the disc fixing assembly includes a disc frame and more than 3 support bar assemblies uniformly distributed on the surface of the disc frame in the circumferential direction, the center of the disc frame is fixedly installed on the saw blade rotation shaft 33, and the axis of the support bar assemblies is parallel to the saw blade rotation shaft 33. As a preferred embodiment, the distance from the center axis of each support bar assembly to the center axis of the saw blade rotation shaft 33 is equal.

As a preferred embodiment, the radius R0 of the circular saw blade 1 is 2.5m or more, and the distance r1=r0/(10-14) of the center axis of the support bar assembly from the center axis of the saw blade rotation shaft 33. As a preferred embodiment, the support rod assembly includes a support rod body 9 and a support rod fixing assembly for fixing the circular saw blade 1 to an end of the support rod body 9, wherein an external thread is formed at a fixed end of the support rod body 9 and the circular saw blade 1, and a support rod mounting hole through which the support rod body 9 passes is formed at a position of the circular saw blade 1 corresponding to the support rod body 9.

As a preferred embodiment, the support bar fixing assembly includes a first block 91 and a second block 92 for fixing both sides of the circular saw blade 1, the first block 91 and the second block 92 are closely attached to the side of the circular saw blade 1, and the first block 91 and the second block 92 are centrally screw-coupled to the support bar main body 9. As a preferred embodiment, the first stop 91 is provided with a resilient fixing member for applying pressure thereto on a side remote from the circular saw blade 1.

As a preferred embodiment, the elastic fixing component comprises an elastic fixing seat 93, elastic fixing rods 94 uniformly distributed in the elastic fixing seat 93 along the circumferential direction, and a pressure spring sleeved on the elastic fixing rods 94; the elastic fixing seat 93 is fixedly sleeved at the end of the supporting rod main body 9 in the center, and one side, close to the first stop block 91, of the elastic fixing seat abuts against the first stop block 91. A certain gap exists between the elastic fixing seat and the first stop block or the elastic fixing seat is loosely abutted against one side of the first stop block and is further abutted against the first stop block through a pressure spring therein.

As a preferred embodiment, a fixing rod chute is formed on the first stopper 91 at a position corresponding to the elastic fixing rod 94, and the elastic fixing rod 94 is sleeved inside the fixing rod chute and can axially slide along the elastic fixing rod 94.

As a preferred embodiment, one end of the pressure spring is fixedly installed on the elastic fixing seat 93, and the other end is fixedly installed on the first stop block 91 at the peripheral position of the fixed rod chute.

As a preferred embodiment, the pressure spring is a tower-type spring, and the larger radius end of the spring is fixedly arranged at the peripheral position of the fixed rod chute on the first stop block 91.

As shown in fig. 3-5, the invention also relates to a cutting disc machine comprising a cutting disc mechanism according to claims 1-11.

As a preferred embodiment, the device further comprises a frame, a track 6, a rotation control component for controlling the rotation of the circular saw blade 1, a lifting device for controlling the lifting of the circular saw blade 1 and a feeding device for controlling the feeding of the circular saw blade 1 back and forth along the direction of the track 6, wherein the frame is arranged on the track 6 and can move along the length direction of the track 6, the lifting device is fixedly arranged on the frame, and the rotation control component is arranged at the output end of the lifting device and can move up and down on the frame; the saw blade rotating shaft 33 is fixedly arranged at the output end of the rotation control assembly; the frame is also provided with a controller 8 for controlling the lifting, forward and backward feeding and rotation of the circular saw blade 1.

As a preferred embodiment, the output of the controller 8 is connected to the input of the feeding means, the lifting means and the rotation control assembly.

As a preferred embodiment, the rotation control assembly includes a control housing 3, a variable speed motor 31 and a saw blade rotation shaft 33, the variable speed motor 31 is fixedly installed on the control housing 3, the saw blade rotation shaft 33 is installed on the side wall of the control housing 3, and the output end of the variable speed motor 31 controls the rotation of the saw blade rotation shaft 33. As a preferred embodiment, the output shaft of the variable speed motor 31 is provided with an input gear 311, the saw blade rotating shaft 33 is provided with an output gear 331, and the input gear 311 drives the output gear 331 to rotate.

As a preferred embodiment, the rotation control assembly further includes a transmission shaft 32, the transmission shaft 32 is mounted on the control box 3, and a first transmission gear 321 and a second transmission gear 322 are mounted on the transmission shaft 32, the first transmission gear 321 is meshed with the input gear 311, and the second transmission gear 322 is meshed with the output gear 331.

As a preferred embodiment, the frame comprises two uprights 5 arranged in the front-rear direction of the track 6, and the lifting device is fixedly mounted on the uprights 5. As a preferred embodiment, the upright 5 is provided with a lifting slide rail 2 along the vertical direction, the output end of the lifting device is provided with a slide plate 21, the slide plate 21 is positioned on the lifting slide rail 2 and can slide along the length direction of the slide rail, and the rotation control assembly is arranged on the slide plate 21. As a preferred embodiment, a horizontal sliding rail is arranged on one side of the sliding plate 21 far away from the upright post 5, a horizontal sliding block is fixedly arranged at a position corresponding to the horizontal sliding rail of the rotation control assembly, and the horizontal sliding block is sleeved inside the horizontal sliding rail. As a preferred embodiment, the upright 5 is provided with a horizontal cylinder 7, the extension and contraction direction of the horizontal cylinder 7 is parallel to the length direction of the horizontal sliding rail, and the rotation control assembly is fixedly arranged at the output end of the horizontal cylinder 7.

As a preferred embodiment, the output of the controller 8 is connected to the input of the feeding means, the lifting means, the horizontal cylinder 7 and the rotation control assembly. As a preferred embodiment, the upright 55 includes a bottom plate 51 and a top plate 52. As a preferred embodiment, the feeding device is mounted on the bottom plate 51 of the upright 5, and the feeding device is mounted on both ends of the bottom plate 51 of the upright 5; the feeding device comprises a shaft 42, a feeding motor 4 and a rail wheel 43; mounting parts for mounting the feeding device are formed at two ends of the bottom plate 51 of the upright 5, shaft holes for mounting the shaft rods are formed at the mounting parts, the shaft rods 42 are mounted on the shaft holes along the width direction of the rail 6, and the rail wheels 43 are mounted at two ends of the shaft rods 42; the automatic feeding device further comprises a speed changing mechanism 41, chain wheels are arranged on the speed changing mechanism 41 and the shaft rod 42, the feeding motor 4 drives the chain wheels on the speed changing mechanism through a chain 44, further drives the chain wheels on the shaft rod through the chain 44, and finally the feeding motor 4 drives the shaft rod 42 to rotate in a chain and chain wheel mode.

As a preferred embodiment, the variable speed motor 31 controls the rotation of the saw blade 1 through the saw blade rotating shaft 33, and a resistance sensor for monitoring the resistance of the saw blade 1 and a vibration sensor for monitoring the vibration of the rotating shaft are mounted on the saw blade rotating shaft 33, and the output end of the resistance sensor and the output end of the vibration sensor are connected with the input end of the controller 8.

As a preferred embodiment, the cutting machine is provided with a display screen for displaying cutting parameters and an input port for setting the cutting parameters and the cutting modes.

step one, starting a cutting machine, controlling a horizontal cylinder 7 to adjust the circular saw blade 1 to a specified transverse position, entering a downward feeding mode, and starting cutting until the circular saw blade is cut to a specified depth;

and thirdly, keeping the saw blade 1 to rotate continuously, and lifting the saw blade 1 of the cutting machine to finish one cutting operation.

In a preferred embodiment, in the first and second steps, the vibration of the saw blade rotation shaft 33 is monitored, and when the vibration amplitude is greater than the set range, the rotation angular speed of the saw blade 1 is reduced or the feed speed is reduced until the vibration amplitude is less than or equal to the set range.

In a preferred embodiment, the setting range of the vibration amplitude is any one of 6 to 18 micrometers, preferably 10 to 12 micrometers.

As a preferred embodiment, when the vibration amplitude is greater than the first set interval upper limit, the specific response steps are as follows:

In a preferred embodiment, in the third step, when the rotation angular velocity or the feeding velocity is increased, if the vibration amplitude reaches the upper limit of the second set section or more, the rotation angular velocity and the feeding velocity are maintained unchanged until the vibration amplitude is decreased to the lower limit of the second set section or less, and then the rotation angular velocity or the feeding velocity is increased.

As a preferred embodiment, when the vibration amplitude is greater than the first set interval, the law of variation of the feed speed satisfies the following formula:

As a preferred embodiment, when the vibration amplitude is greater than the first set interval, the change law of the rotation angular velocity satisfies the following formula:

wherein v2 represents the rotational speed without being affected by the amplitude, n is an integer of 1 or more, preferably 3, and formula (4) is triggered when the vibration amplitude has not decreased below the lower limit of the first set interval after the feed speed has decreased to half of its initial speed, and is terminated when the vibration amplitude reaches the lower limit of the first set interval; equation (5) is triggered when the vibration amplitude falls below the second set section lower limit, and is terminated when the vibration amplitude reaches above the second set section upper limit or when the rotation angular velocity reaches v 0. As a preferred embodiment, the first set interval of the vibration amplitude is 10-18 micrometers, preferably 10-12 micrometers; the second set interval of the vibration amplitude is 6-10 micrometers, preferably 6-8 micrometers.

As a preferred embodiment, in the downward feeding mode, the downward feeding speed v1 satisfies the following relationship:

As a preferred embodiment, the first friction threshold coefficient k11 satisfies: 0.05< k11 is less than or equal to 0.20, and the second friction threshold coefficient k12 meets the following conditions: k12 is more than 0.30 and less than or equal to 0.50.

As a preferred embodiment, in the downward feeding mode, the rotational angular velocity v2 of the saw blade 1 satisfies the following relationship:

where f01 denotes a downward feeding standard frictional resistance, v02 denotes a rotational set angular velocity of the downward feeding saw blade 1, k21 denotes a third frictional threshold coefficient, and k22 is a fourth frictional threshold coefficient.

As a preferred embodiment, the third friction threshold coefficient k21 satisfies: 0.05< k21 < 0.20, and the fourth friction threshold coefficient k22 satisfies: k22 is less than or equal to 0.50 and 0.30.

As a preferred embodiment, the downward feeding standard frictional resistance f01 satisfies the following relationship:

where R denotes a radius of the saw blade 1, L denotes a sawing depth of the saw blade 1, k01 denotes a coefficient of frictional resistance of a side surface of the saw blade 1, k02 denotes a coefficient of frictional resistance of a kerf, v01 denotes a downward feeding set speed, and v02 denotes a rotational set angular speed of the downward feeding saw blade 1.

As a preferred embodiment, in the forward feed mode, the forward feed speed v3 satisfies the following relationship:

As a preferred embodiment, the fifth friction threshold coefficient k31 satisfies: 0.05< k31 is less than or equal to 0.20, and the sixth friction threshold coefficient k32 meets the following conditions: 0.30< k32 < 0.50.

As a preferred embodiment, in the forward feed mode, the rotational angular velocity v4 of the saw blade 1 satisfies the following relationship:

where f02 denotes a forward-feed standard frictional resistance, v02 denotes a forward-feed saw blade 1 rotation setting angular velocity, k41 denotes a seventh friction threshold coefficient, and k22 is an eighth friction threshold coefficient.

As a preferred embodiment, the seventh friction threshold coefficient k41 satisfies: 0.05< k41 is less than or equal to 0.20, and the eighth friction threshold coefficient k42 meets the following conditions: k42 is less than or equal to 0.30 and less than or equal to 0.50.

As a preferred embodiment, the forward feed standard frictional resistance f02 satisfies the following relationship:

where R represents the radius of the saw blade 1, L0 represents the saw cutting depth setting value of the saw blade 1, k01 is the side friction resistance coefficient of the saw blade 1, k02 is the kerf friction resistance coefficient, v03 represents the forward feed setting speed, and v04 represents the rotational setting angular speed of the forward feed saw blade 1.

The following further describes the beneficial effects in this embodiment by means of specific examples:

as shown in fig. 1 to 14, specifically, in this embodiment, the cutting machine is a dual-blade disc cutting machine, including a track, a left saw blade and a right saw blade disposed on two sides of the track, a left feeding device for controlling the left saw blade to feed forward along the track, a right feeding device for controlling the right saw blade to feed forward, a left lifting device for controlling the left saw blade to move up and down, and a right lifting device for controlling the right saw blade to move up and down, a left rotation control component for controlling the left saw blade to rotate, and a right rotation control component for controlling the right saw blade to rotate, where an output end of the controller is connected with an input end of the left feeding device, the right feeding device, the left lifting device, the right lifting device, the left rotation control component and the right rotation control component.

The left rotation control assembly comprises a left control box body, a left variable speed motor and a left saw blade rotating shaft, the left variable speed motor is fixedly arranged on the left control box body, the left saw blade rotating shaft is arranged on the side wall of the left control box body, the output end of the left variable speed motor controls the left saw blade rotating shaft to rotate, and the center of the left saw blade is fixedly arranged on the left saw blade rotating shaft; the right rotation control assembly comprises a right control box body, a right variable speed motor and a right saw blade rotating shaft, wherein the right variable speed motor is fixedly arranged on the right control box body, the right saw blade rotating shaft is arranged on the side wall of the right control box body, the output end of the right variable speed motor controls the right saw blade rotating shaft to rotate, and the center of the right saw blade is fixedly arranged on the right saw blade rotating shaft. The left variable-speed motor output shaft is provided with a left input gear, the left saw blade rotating shaft is provided with a left output gear, and the left input gear drives the left output gear to rotate; the output shaft of the right variable speed motor is provided with a right input gear, the rotating shaft of the right saw blade is provided with a right output gear, and the right input gear drives the right output gear to rotate.

The left rotation control assembly further comprises a left transmission shaft, the left transmission shaft is arranged on the left control box body, a first left transmission gear and a second left transmission gear are arranged on the left transmission shaft, the first left transmission gear is meshed with the left input gear, and the second left transmission gear is meshed with the left output gear; the right rotation control assembly further comprises a right transmission shaft, the right transmission shaft is arranged on the right control box body, a first right transmission gear and a second right transmission gear are arranged on the right transmission shaft, the first right transmission gear is meshed with the right input gear, and the second right transmission gear is meshed with the right output gear.

The left variable speed motor controls the left saw blade to rotate through the left saw blade rotating shaft, the right variable speed motor controls the right saw blade to rotate through the right saw blade rotating shaft, and the left saw blade rotating shaft and the right saw blade rotating shaft are provided with a resistance sensor for monitoring the resistance of the left saw blade and the right saw blade and a vibration sensor for monitoring the vibration of the rotating shaft, and the output end of the resistance sensor and the output end of the vibration sensor are connected with the input end of the controller. Specifically, in this embodiment, the track includes left track and the right track that four parallel bar guide rails are constituteed, still including installing the left frame on left track and installing the right frame on right track, left frame includes left stand, and right frame includes right stand, and left rotation control subassembly passes through left stand to be installed on left track, and right rotation control subassembly passes through right stand to be installed on right track. The left lifting device comprises a left lifting slide rail, a left lifting slide rail is arranged on the left upright post along the vertical direction, a left slide plate is arranged at the output end of the left lifting device, the left slide plate is positioned on the left lifting slide rail and can slide along the length direction of the left lifting slide rail, and a left rotation control assembly is arranged on the left slide plate; the right lifting device comprises a right lifting slide rail, the right lifting slide rail is arranged on the right upright post along the vertical direction, the right slide plate is arranged at the output end of the right lifting device, the right slide plate is positioned on the right lifting slide rail and can slide along the length direction of the right lifting slide rail, and the right rotation control assembly is arranged on the right slide plate. In this embodiment, the left upright is composed of two uprights arranged along the front-rear direction of the track, and the right upright is composed of two uprights arranged along the front-rear direction of the track. A left horizontal sliding rail is arranged on one side, far away from the left upright post, of the left sliding plate, a left horizontal sliding block is fixedly arranged at a position, corresponding to the left horizontal sliding rail, of the left rotation control assembly, and the left horizontal sliding block is sleeved inside the left horizontal sliding rail; the right slide is kept away from and is equipped with right horizontal slide rail on right stand one side, and right rotation control subassembly and right horizontal slide rail correspond position department fixed mounting have right horizontal slider, and right horizontal slider cover is established inside right horizontal slide rail.

The slide plate is also provided with a control main body fixing component for fixing the left and right rotation control components, the control main body fixing component comprises fixing cylinders 35, fixing pins 351 and fixing installation sleeves 36, more than one fixing cylinder 35 is fixedly installed on the slide plate on one of the upright posts, each fixing cylinder 35 is provided with one fixing pin 351, and the position of the slide plate on the other upright post corresponding to each fixing pin 351 is provided with one fixing installation sleeve 36. The input end of the fixed cylinder 35 is connected with the output end of the controller 8. The fixed subassembly of control main part can make two rotation control components synchronous lifting, can only start a elevating gear in the operation process and just can realize synchronous lifting, and when starting two elevating gear, can guarantee the stability of rotation control component in the motion process, be difficult for taking place to rock the scheduling condition. The left sliding plate is provided with a left horizontal cylinder, the extension direction of the left horizontal cylinder is parallel to the length direction of the left horizontal sliding rail, and the left rotation control assembly is fixedly arranged at the output end of the left horizontal cylinder; the right horizontal cylinder is installed on the right sliding plate, the telescopic direction of the right horizontal cylinder is parallel to the length direction of the right horizontal sliding rail, and the right rotation control assembly is fixedly installed at the output end of the right horizontal cylinder. The output end of the controller is connected with the input ends of the left horizontal cylinder and the right horizontal cylinder. In this embodiment, the control box bottom still installs the rotation axis spacing subassembly that is used for carrying out spacing to two saw bit rotation axes.

The rotating shaft limiting assembly comprises a rotating shaft limiting cylinder 34 and a rotating shaft limiting cylinder 37, the rotating shaft limiting cylinder 37 is fixedly arranged at the bottom of the control box body, and the rotating shaft limiting cylinder 34 is arranged at the movable end of the rotating shaft limiting cylinder 37 and sleeved on the outer circumference of one of the saw blade rotating shafts; the rotation shaft limiting cylinder 34 can move along the axis direction of the saw blade rotation shaft under the drive of the movable end of the rotation shaft limiting cylinder 37. The input end of the rotation shaft limiting cylinder 37 is connected with the output end of the controller 8. The spacing section of thick bamboo 34 of rotation axis one end is installed the go-between subassembly, and the go-between subassembly includes go-between body 343 and the go-between connecting part 344 of go-between body 343, and connecting part 344 fixed mounting is at the spacing cylinder 37 expansion end of rotation axis, and connecting part 344 is installed at the spacing section of thick bamboo 34 tip of rotation axis, and connecting part 343 is coaxial with spacing section of thick bamboo 34 of rotation axis and can follow the rotation along its central axis between spacing section of thick bamboo 34 of rotation axis and saw bit rotation axis. An annular groove is formed on the outer circumference of the rotating shaft limiting cylinder 34 at a position corresponding to the connecting ring body 343, and the connecting ring body 343 is sleeved on the annular groove.

One end, far away from the corresponding saw blade, of each of the two saw blade rotating shafts is provided with a rotating limiting block 332 for limiting the rotating direction of the saw blade rotating shaft, and a moving limiting groove 341 for left and right movement of the rotating limiting block 332 and an annular limiting groove 342 for rotating movement of the rotating limiting block 332 are formed in the rotating shaft limiting cylinder 34. The movement limiting groove 341 is an elongated groove parallel to the axis of the saw blade rotating shaft, and the plane of the annular limiting groove 342 is perpendicular to the movement limiting groove 341. When the rotation shaft limiter 34 is in the initial position, the rotation limiter 332 is located in the annular limiting groove 342. The number of the annular limiting grooves 342 is two, a group of rotating limiting blocks 332 are arranged on the two saw blade rotating shafts, and the distance between the two annular limiting grooves 342 is equal to the distance between the rotating limiting blocks 332 on the two groups of saw blade rotating shafts. The number of the annular limiting grooves 342 is three, a group of rotating limiting blocks 332 are arranged on the two saw blade rotating shafts, and the distance between the other two annular limiting grooves 342 is equal to the distance between the rotating limiting blocks 332 on the two saw blade rotating shafts except for the annular limiting grooves 342 occupied by the rotating limiting blocks 332 when the rotating shaft limiting cylinder 34 is at the initial position. More than two groups of rotating limiting blocks 332 are arranged on the two saw blade rotating shafts, and when the two saw blade rotating shafts are positioned at the first limiting connection position, the rotating limiting blocks 332 are positioned in the annular limiting grooves 342; when the two saw blade rotating shafts are at the second limiting connection position, the rotating limiting blocks 332 are all positioned in the moving limiting grooves 341.

In this embodiment, a rotation shaft positioning sleeve assembly for positioning the rotation shaft of the saw blade is installed at the bottom of at least one control box. The rotary shaft positioning sleeve assembly comprises a rotary shaft positioning cylinder 38 and a rotary shaft positioning sleeve 381, wherein the rotary shaft positioning cylinder 38 is arranged on the sliding plate 21, the rotary shaft positioning sleeve 381 is fixedly arranged at the movable end of the rotary shaft positioning cylinder 38, a positioning groove for positioning the circular saw blade 1 is formed in one side, close to the saw blade rotary shaft 33, of the rotary shaft positioning sleeve 381, and a positioning block 333 matched with the positioning groove is arranged at the position, corresponding to the positioning groove, of the surface length direction of the saw blade rotary shaft 33. The input end of the rotating shaft positioning cylinder is connected with the output end of the controller. After the saw blade is subjected to synchronous rotation once or asynchronous rotation, when the operation mode is required to be replaced, the rotating motion of the saw blade is closed, the saw blade speed is gradually reduced, at the moment, the air cylinder is started, the rotating shaft locating sleeve arranged on the movable end of the air cylinder is close to the rotating shaft along with the motion of the movable end of the air cylinder, the setting distance between the rotating shaft locating sleeve and the air cylinder is smaller than the height of the locating block on the rotating shaft of the saw blade, when the locating block rotates to one side of the rotating shaft locating sleeve, the rotating shaft locating sleeve and the locating block rub, the rotating speed of the saw blade is gradually reduced, when the rotating speed of the saw blade is enough to rotate for one circle, but the energy required by rotation is smaller than the energy required by overcoming friction force between the rotating shaft locating sleeve and the locating block, the saw blade is stopped and is accommodated in the rotating shaft locating groove of the rotating shaft locating sleeve, so that the locating of the rotating shaft is realized. Specifically, the positioning groove is an arc groove, the distance between the notch at one end of the arc groove and the rotating shaft is greater than the height of the positioning block 333, and the distance between the notch at the other end of the arc groove and the rotating shaft is less than the height of the positioning block 333; the rotation direction of the positioning block 333 is from one end of the positioning groove with a larger distance from the rotation axis of the saw blade to the other end; one end of the lower end of the positioning block 333, which is in contact with the positioning groove, is provided with an arc-shaped surface, and the tangent point of the arc-shaped surface and the positioning groove is positioned in the positioning groove. The rotation shaft positioning sleeve 381 is slidably mounted on the movable end of the rotation shaft positioning cylinder 38 along the length direction of the movable end. Specifically, the rotation shaft positioning cylinder 38 is further provided with a rotation shaft positioning buffer assembly 382 for buffering the rotation shaft positioning sleeve 381. The rotation axis location buffer assembly 382 includes buffer spring, buffer seat, buffer rod, and it has the annular mounting groove of installation buffer rod to open on the rotation axis locating sleeve 381, and the buffer rod is installed on the buffer seat, and buffer spring cover is established on the buffer rod, and the buffer rod is installed inside the annular mounting groove, and buffer spring one end is connected with the buffer seat, and one end is installed at annular mounting groove periphery. The input of the rotating shaft positioning cylinder 38 is connected with the output of the controller.

Two left stand both ends are fixed through left stand bottom plate and left stand roof, and two right stand both ends are fixed through right stand bottom plate and right stand roof, all install the stand fixed subassembly that is used for fixing left stand and right stand between left stand bottom plate and the right stand bottom plate, between left stand roof and the right stand roof. The vertical column fixing component is arranged to ensure the overall stability of the cutting machine in the synchronous forward feeding process. The column fixing component comprises column fixing air cylinders 55, column fixing sliding blocks 551 and column fixing sliding grooves 56, the column fixing air cylinders 55 are fixedly mounted on a left column bottom plate or a left column top plate, each column fixing air cylinder 55 is provided with a column fixing sliding block 551, each column fixing sliding block 551 is correspondingly provided with a column fixing sliding groove 56 which is matched with the column fixing sliding block 56, and the column fixing sliding grooves 56 are mounted on a right column bottom plate or a right column top plate. The input end of the upright post fixing cylinder 55 is connected with the output end of the controller 8. An infrared emitter (not shown) for calibrating the upright fixing slide block 551 is installed in the upright fixing slide groove 56, and an infrared receiving plate (not shown) corresponding to the infrared emitter is installed on one side of the upright fixing slide block 551 close to the upright fixing slide groove 56. The left column top plate and the right column top plate and the left column bottom plate and the right column bottom plate are connected through column sliding rails 54 and column sliding blocks 53. The left column top plate and the left column bottom plate are provided with column sliding rails 54, and the right column top plate and the right column bottom plate are provided with column sliding blocks 53 which are sleeved in the column sliding rails 54 at corresponding positions.

The left feeding device is arranged on the left upright post bottom plate, and the left feeding device is arranged at two ends of the left upright post bottom plate; the left feeding device comprises a left shaft lever, a left feeding motor and a left rail wheel; the left mounting part is formed at two ends of the left upright post bottom plate and is used for mounting a left shaft hole for mounting a left shaft rod, the left shaft rod is mounted on the left shaft hole along the width direction of the track, and the left track wheel is mounted at two ends of the left shaft rod; the left feeding motor drives the left chain wheel on the left speed changing mechanism through a left chain so as to further drive the left chain wheel on the left shaft rod through the left chain, and finally the left feeding motor drives the left shaft rod to rotate in a chain wheel mode; the right feeding device is arranged on the right upright post bottom plate, and the right feeding device is arranged at two ends of the right upright post bottom plate; the right feeding device comprises a right shaft lever, a right feeding motor and a right rail wheel; right mounting parts for mounting the feeding device are formed at two ends of the right upright post bottom plate, right shaft holes for mounting right shaft rods are formed in the right mounting parts, the right shaft rods are mounted on the right shaft holes along the width direction of the rail, and right rail wheels are mounted at two ends of the right shaft rods; still include right speed change mechanism, all be provided with right sprocket on right speed change mechanism and the right axostylus axostyle, right feeding motor passes through right chain and drives the right sprocket on the right speed change mechanism and then continues to drive the right sprocket on the right axostylus axostyle through right chain, finally right feeding motor adopts chain sprocket mode drive right axostylus axostyle rotatory. Specifically, in this embodiment, the disc fixing assembly for fixing the non-center position of the saw blade is further installed on the rotation shaft of the saw blade. The disc fixing assembly comprises a disc frame body and more than 3 supporting rod assemblies uniformly distributed on the surface of the disc frame body along the circumferential direction, the center of the disc frame body is fixedly arranged on the saw blade rotating shaft, and the axis of the supporting rod assemblies is parallel to the saw blade rotating shaft. The distance from the central shaft of each support rod assembly to the central shaft of the saw blade rotating shaft is equal. The radius R0 of the saw blade is more than or equal to 2.5m, and the distance R1 = R0/(10-14) from the central axis of the support rod assembly to the central axis of the rotation shaft of the saw blade. The support rod assembly comprises a support rod main body 9 and a support rod fixing assembly used for fixing the saw blade at the end part of the support rod main body 9, wherein external threads are formed at the fixed end of the support rod main body 9 and the saw blade, and support rod mounting holes for the support rod main body 9 to pass through are formed at the position of the saw blade corresponding to the support rod main body 9.

The support bar fixing assembly comprises a first stop block 91 and a second stop block 92 for fixing two sides of the saw blade, the first stop block 91 and the second stop block 92 are clung to the side face of the saw blade, and the centers of the first stop block 91 and the second stop block 92 are in threaded connection with the support bar main body 9. The side of the first stop 91 remote from the saw blade is provided with a resilient securing member for applying pressure thereto. The elastic fixing component comprises an elastic fixing seat 93, elastic fixing rods 94 uniformly distributed in the elastic fixing seat 93 along the circumferential direction, and pressure springs sleeved on the elastic fixing rods 94; the elastic fixing seat 93 is fixedly sleeved at the end of the supporting rod main body 9 in the center, and one side, close to the first stop block 91, of the elastic fixing seat abuts against the first stop block 91. The first stopper 91 is formed with a fixing rod chute at a position corresponding to the elastic fixing rod 94, and the elastic fixing rod 94 is sleeved inside the fixing rod chute and can axially slide along the elastic fixing rod 94. Specifically, the fixed rod chute is a chute with an annular radial section. One end of the pressure spring is fixedly arranged on the elastic fixed seat 93, and the other end of the pressure spring is fixedly arranged on the first stop block 91 at the periphery of the fixed rod chute. The pressure spring is a tower-shaped spring, and the larger radius end of the pressure spring is fixedly arranged at the peripheral position of the fixed rod chute on the first stop block 91. The disc fixing assembly is mainly used for enhancing the vibration resistance of the saw blade, can enhance the stability of disc cutting and prevent abnormal vibration from damaging the saw blade or accidents and the like.

The control method of the double-blade disc cutter in the embodiment comprises the following control steps:

step one, starting a double-cutter disc cutting machine, and controlling a horizontal cylinder to adjust a circular saw blade to a specified transverse position;

setting a cutting mode of a double-cutter four-track disc cutter, and starting cutting;

step three, after cutting is completed, keeping the saw blade continuously rotating, and lifting the saw blade of the cutting machine to complete one-time cutting operation;

the cutting modes of the double-cutter four-track disc cutter in the second step of the control method of the double-cutter disc cutter comprise a first cutting mode, a second cutting mode, a third cutting mode and a fourth cutting mode, wherein the first cutting mode is that the left saw blade and the right saw blade synchronously lift, synchronously rotate and synchronously advance; the second cutting mode is that the left saw blade and the right saw blade synchronously lift, do not synchronously rotate and synchronously advance; the third cutting mode is that the left saw blade and the right saw blade do not synchronously lift, do not synchronously rotate and synchronously advance; the fourth cutting mode is that the left saw blade and the right saw blade do not synchronously lift, do not synchronously rotate and do not synchronously advance.

In the first cutting mode, the control post fixing cylinder 55 fixes the two posts, the control main body fixing assembly fixes the two rotation control assemblies, and the rotation limiting block 332 and the movement limiting groove 341 cooperate to fix the two saw blade rotating shafts along the rotation direction. When in the first cutting mode, the control upright fixing cylinder 55 fixes the two uprights, the control main body fixing assembly fixes the two rotation control assemblies, then the rotation shaft limiting cylinder 34 can move along the axial direction of the rotation shaft of the other saw blade under the drive of the movable end of the rotation shaft limiting cylinder 37, the left saw blade rotating shaft and the right saw blade rotating shaft are sleeved in the same rotation shaft limiting cylinder 34, the rotation limiting blocks 332 on the rotation shafts of the left saw blade and the right saw blade rotating shaft are matched with the movement limiting grooves 341, one of the variable speed motors is started, and the two saw blades can synchronously rotate.

In the second cutting mode, the control post fixing cylinder 55 fixes the two posts, the control main body fixing assembly fixes the two rotation control assemblies, and the rotation limiting block 332 and the annular limiting groove 342 cooperate to fix the two saw blade rotating shafts along the axial direction. In the second cutting mode, the control upright fixing cylinder 55 fixes the two uprights, the control main body fixing assembly fixes the two rotation control assemblies, then the rotation shaft limiting cylinder 34 can move along the axial direction of the rotation shaft of the other saw blade under the drive of the movable end of the rotation shaft limiting cylinder 37, the left saw blade rotating shaft and the right saw blade rotating shaft are sleeved in the same rotation shaft limiting cylinder 34, the rotation limiting blocks 332 on the left saw blade rotating shaft and the right saw blade rotating shaft are matched with the annular limiting grooves 342, then the left variable speed motor and the right variable speed motor are started, and the two saw blades can do asynchronous rotation.

In the third cutting mode, the control post fixing cylinder 55 fixes the two posts, the control body fixing assembly separates the two rotation control assemblies, and the rotation shaft limiting cylinder 34 is in the initial position. In the fourth cutting mode, the control post fixing cylinder 55 separates the two posts, the control body fixing assembly separates the two rotation control assemblies, and the rotation shaft limiting cylinder 34 is in the initial position. In the rotating process, the rotating speeds of the saw blades may have a small gap, so that the saw blades can rotate asynchronously, and therefore, the arranged rotating limiting cylinders are respectively positioned in the moving limiting grooves 341 or the annular limiting grooves 342 in different modes, when the saw blade rotating shafts at the left end and the right end need to rotate synchronously, the rotating shaft limiting blocks on the left end and the right end are positioned in the moving limiting grooves 341, and finally, the saw blade rotating shafts have the same initial state, and in the subsequent operating process, the asynchronous rotation is not easy to occur, and when the left saw blade rotating shaft and the right saw blade rotating shaft rotate asynchronously, the saw blade rotating shafts can be accommodated in the annular groove limiting grooves and rotate asynchronously. In this embodiment, the double-cutter disc cutting machine can have different operation modes, can better adapt to different production demands, and is more diversified in use. The control method of the single saw blade in the double-blade disc cutter in the embodiment comprises the following control steps:

In the downward feeding mode, the downward feeding speed v1 satisfies the following relationship:

The first friction threshold coefficient k11 satisfies: 0.05< k11 is less than or equal to 0.20, and the second friction threshold coefficient k12 meets the following conditions: k12 is more than 0.30 and less than or equal to 0.50.

In the downward feeding mode, the saw blade rotational angular velocity v2 satisfies the following relationship:

The third friction threshold coefficient k21 satisfies: 0.05< k21 < 0.20, and the fourth friction threshold coefficient k22 satisfies: k22 is less than or equal to 0.50 and 0.30.

The downward feeding standard frictional resistance f01 satisfies the following relationship:

In the forward feed mode, the forward feed speed v3 satisfies the following relationship:

The fifth friction threshold coefficient k31 satisfies: 0.05< k31 is less than or equal to 0.20, and the sixth friction threshold coefficient k32 meets the following conditions: 0.30< k32 < 0.50.

In the forward feed mode, the saw blade rotational angular velocity v4 satisfies the following relationship:

The seventh friction threshold coefficient k41 satisfies: 0.05< k41 is less than or equal to 0.20, and the eighth friction threshold coefficient k42 meets the following conditions: k42 is less than or equal to 0.30 and less than or equal to 0.50.

The forward-feed standard frictional resistance f02 satisfies the following relationship:

In the first and second steps of the control method of the single saw blade in the double-blade disc cutting machine, the vibration condition of the rotating shaft of the saw blade is monitored, and when the vibration amplitude is larger than the set interval, the rotating angular speed of the saw blade is reduced or the feeding speed is reduced until the vibration amplitude is smaller than or equal to the set range.

The set range of the vibration amplitude is any one of 6 to 18 micrometers, preferably 10 to 12 micrometers.

Specifically, in this embodiment, two setting sections of vibration amplitude are provided, and the setting section is any section of 6 to 18 μm.

When the vibration amplitude is larger than the upper limit of the first set interval, the specific response steps are as follows:

when the vibration amplitude is larger than the upper limit of the first set interval, the third step is specific to respond, after the vibration amplitude is reduced below the lower limit of the first set interval, the feeding speed and the rotation angular velocity are kept unchanged, and when the vibration amplitude is reduced below the lower limit of the second set interval, the rotation angular velocity is increased to be free from the influence of the amplitude; then gradually increasing the feeding speed to the feeding speed which is not affected by the amplitude.

And step three, when the rotation angular velocity or the feeding velocity is increased, if the vibration amplitude reaches the upper limit of the second set interval or more, the rotation angular velocity and the feeding velocity are kept unchanged until the vibration amplitude is reduced to be below the lower limit of the second set interval, and then the rotation angular velocity or the feeding velocity is increased.

When the vibration amplitude is larger than the first set interval, the change rule of the feeding speed meets the following formula:

When the vibration amplitude is larger than the first set interval, the change rule of the rotation angular velocity satisfies the following formula:

wherein v2 represents the rotational speed without being affected by the amplitude, n is an integer of 1 or more, preferably 3, and formula (4) is triggered when the vibration amplitude has not decreased below the lower limit of the first set interval after the feed speed has decreased to half of its initial speed, and is terminated when the vibration amplitude reaches the lower limit of the first set interval; equation (5) is triggered when the vibration amplitude falls below the second set section lower limit, and is terminated when the vibration amplitude reaches above the second set section upper limit or when the rotation angular velocity reaches v 0. The first set interval of the vibration amplitude is 10-18 microns, preferably 10-12 microns; the second set interval of the vibration amplitude is 6-10 micrometers, preferably 6-8 micrometers.

When the monitored vibration amplitude is not in the set value range, the rotation angle speed and the downward forward feed speed of the saw blade are adjusted to be smaller than or equal to the set range by adjusting priority of the vibration condition.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A control method of a disc cutter, characterized by comprising the following control steps:

step three, keeping the saw blade to continue rotating, and lifting the saw blade of the cutting machine to finish one-time cutting operation;

in the first step and the second step, the vibration condition of the saw blade rotating shaft is monitored, and when the vibration amplitude is larger than a set interval, the rotation angle speed of the saw blade is reduced or the feeding speed is reduced until the vibration amplitude is smaller than or equal to a set range; the set interval of the vibration amplitude is any interval of 6-18 micrometers, the first set interval of the vibration amplitude is 10-18 micrometers, and the second set interval of the vibration amplitude is 6-10 micrometers;

2. The method according to claim 1, wherein in the third step, when the rotational angular velocity or the feed velocity is increased, if the vibration amplitude is equal to or higher than the upper limit of the second set section, the rotational angular velocity and the feed velocity are maintained unchanged until the vibration amplitude is decreased to or lower than the lower limit of the second set section, and then the rotational angular velocity or the feed velocity is increased.