CN113478660A

CN113478660A - Double-cutter disc cutting machine and control method thereof

Info

Publication number: CN113478660A
Application number: CN202110749685.XA
Authority: CN
Inventors: 林智芳; 洪培英; 吴江文; 黄嘉鸿
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: 2021-10-08
Anticipated expiration: 2041-07-02
Also published as: CN113478660B

Abstract

The invention discloses a double-cutter disc cutting machine and a control method thereof, belonging to the technical field of stone processing machinery equipment, and comprising a rack, a track, two circular saw blades arranged at two sides of the track and a control main body for controlling the rotation of the circular saw blades, wherein the rack comprises two upright posts which are arranged on the track in a front-back manner and are vertical to the track, the two control main bodies are arranged on the upright posts in a direction parallel to the track, and a first lifting device and a second lifting device for respectively controlling the lifting of the two control main bodies are fixedly arranged on the upright posts; the control method comprises the following steps: starting the cutting machine, and adjusting the circular saw blade to a specified transverse position; setting a cutting mode of the cutting machine and starting cutting; after the cutting is finished, the saw blade is kept to rotate continuously, and the saw blade is lifted to finish one-time cutting operation. The invention has the beneficial effects that: through the control to the rotational speed of saw bit and saw bit lifting speed, enable the saw bit and be difficult to collapse and do not influence work efficiency.

Description

Double-cutter disc cutting machine and control method thereof

Technical Field

The invention relates to the technical field of stone processing mechanical equipment, in particular to a double-cutter disc cutting machine and a control method thereof.

Background

The existing stone mining machinery for mining mines is generally adopted, and the stone mining machinery is developed from the initial stage that a single saw is provided with a single saw blade to the stage that two ends of a main shaft of the single saw are respectively provided with a plurality of saw blades, so that the stone mining of the stone mining machine is more and more convenient, and the stone mining efficiency is gradually improved. However, the properties of stones mined by the conventional quarrying machine are not completely the same in the mining process, the stones in a certain part of the mine may have higher or lower hardness than the stones in another part, and the effects of resistance and the like received by the stones with different hardness when the saw blade cuts the stones are different.

For example, the invention patent with the publication number of CN102022117B discloses a double-spliced adjustable-distance mine quarrying machine, which comprises a machine base, upright posts and a sawing machine, wherein a sliding plate with a transverse guide groove is respectively pivoted on two upright post guide rails, two ends of a gear box are slidably 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 gear box is divided into a gear cavity and a cavity, the gear cavity is of a three-shaft structure and sequentially comprises a motor shaft, an intermediate shaft and an output shaft, the three shafts are in meshing transmission through two groups of gear sets, and the end face of the motor is fixedly suspended on the side face of the gear box; the sliding plate is pivoted with two gearboxes of two independent sawing machines side by side, the two gearboxes rotate 180 degrees mutually, a motor hung on the side surface of the gearbox can be inserted into a cavity of the other gearbox, and saw blades on output shafts of the two gearboxes are positioned on the far side and on the same axis; a baffle is fixed at the middle position of the two sliding plates, and a driving oil cylinder is respectively arranged between the baffle and the two gearboxes, so that the position of the saw blade is adjusted by the action of the oil cylinder. This quarrying machine can't adjust to saw bit rotational speed, the feeding motion of decurrent forward direction in cutting process to the condition such as easily lead to the saw bit to collapse takes place, reduces saw bit life and influences the operating efficiency, raise the cost.

Disclosure of Invention

The problems that in the prior art, the hardness of a part of stone material on a mine mined by a quarrying machine is possibly higher or lower than that of another part of stone material in the mining process, the existing quarrying machine cannot adjust the feeding motion of the saw blade in the rotating speed and the downward direction in the cutting process, the saw blade is easy to break during operation, the operation efficiency is reduced and the like are solved. The invention provides a double-knife disc cutting machine and a control method thereof, wherein the rotating speed and the lifting motion of a saw blade are controlled by a controller, so that the saw blade can be subjected to speed regulation when cutting stones with different hardness, the normal use of the saw blade is ensured, the saw blade is not easy to break, and the working efficiency is not influenced. The specific technical scheme is as follows:

the utility model provides a double knives disc cutting machine, includes frame, track, sets up two circular saw blades in track both sides and is used for control the rotatory control main part of circular saw blade, the frame sets up around including and installs two on the track with track vertically stand, two the control main part along with track parallel direction installs on the stand, fixed mounting has on the stand and is used for controlling two respectively the first elevating gear and the second elevating gear that the control main part goes up and down.

The traditional cutting machine cuts stones at a set operation speed in the process of cutting the quarried stones, the resistance is suddenly increased when the harder stones at a certain position are cut, the rotation speed and the downward feeding speed of the saw blade cannot be adjusted in time, and then the saw blade is broken or even burnt, even violent vibration occurs, so that the saw blade is broken and scattered, hurts pedestrians and brings serious potential safety hazards; through elevating gear and variable speed motor to control saw bit rotation speed and saw bit speed of giving downwards, when cutting to the building stones of different hardness, can be according to the rotation speed and the decurrent forward operation speed of the change adjustment saw bit of building stones, and then make the saw bit when the cutting, can make the saw bit be difficult to collapse, guarantee the normal use of saw bit, be difficult to produce the potential safety hazard, and can keep the cutting speed of saw bit in reasonable within range, can not influence work efficiency.

Preferably, a feeding device for controlling the frame to feed along the length direction of the track is mounted on the frame.

The feeding device is arranged to control the forward feeding movement speed of the saw blade, the forward feeding cutting speed of the saw blade can be adjusted according to different resistance of the saw blade in the quarrying process, normal use of the saw blade in the cutting process is further guaranteed, and the saw blade is not prone to being broken.

Preferably, the control main body comprises a rotation control assembly for controlling the rotation of the circular saw blade, 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 center of the circular saw blade is fixedly arranged at the output end of the rotary control assembly.

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

Preferably, an input gear is mounted on an 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, a lifting slide rail is installed on the upright column along the vertical direction, a slide plate is installed at the output end of the lifting device, the slide plate is located on the lifting slide rail and can slide along the length direction of the slide rail, and the rotation control assembly is installed on the slide plate.

Preferably, the slide is kept away from be equipped with horizontal slide rail on stand one side, the rotation control subassembly with horizontal slide rail correspondence position department fixed mounting has horizontal slider, horizontal slider cover is established inside the horizontal slide rail.

Preferably, a horizontal cylinder is installed on the sliding plate, the telescopic direction of the horizontal cylinder is parallel to the length direction of the horizontal sliding rail, and the rotating control assembly is fixedly installed at the output end of the horizontal cylinder.

Preferably, the frame is further provided with a controller for controlling the circular saw blade to rotate and feed, and 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, still install on the slide and be used for with two the fixed subassembly of control main part that control main part is fixed, the fixed subassembly of control main part includes fixed cylinder, fixed pin and fixed mounting cover, more than one fixed cylinder fixed mounting is in one of them on the stand on the slide, every all install one on the fixed cylinder the fixed pin, another on the stand with every fixed pin corresponds position department and all is provided with one the fixed mounting cover.

Preferably, a rotating shaft positioning sleeve assembly for positioning the saw blade rotating shaft is mounted at the bottom of at least one of the control box bodies.

Preferably, rotation axis location cover subassembly includes rotation axis location cylinder and rotation axis location cover, the rotation axis location cylinder is installed on the slide, rotation axis location cover fixed mounting be in rotation axis location cylinder expansion end, the rotation axis location cover is close to saw bit rotation axis one side-mounting is formed with right the constant head tank that the circular saw blade advances line location, saw bit rotation axis surface length direction with the constant head tank corresponds position department and is equipped with constant head tank complex locating piece.

Preferably, a rotating shaft limiting assembly used for limiting the rotating shafts of the two saw blades is installed at the bottom of the control box body.

Preferably, the rotation axis limiting assembly comprises a rotation axis limiting cylinder and a rotation axis limiting cylinder, the rotation axis limiting cylinder is fixedly installed at the bottom of the box body, the rotation axis limiting cylinder is installed at the movable end of the rotation axis limiting cylinder and is sleeved on one of the movable end and the rotation axis of the saw blade.

Preferably, a connecting ring assembly is mounted at one end of the rotating shaft limiting cylinder, the connecting ring assembly comprises a connecting ring body and a connecting ring connecting portion mounted below the connecting ring body, the connecting ring connecting portion is fixedly mounted at the movable end of the rotating shaft limiting cylinder, the connecting ring body is mounted at the end portion of the rotating shaft limiting cylinder, and the connecting ring body is coaxial with the rotating shaft limiting cylinder and can rotate with the rotating shaft limiting cylinder along the central axis of the rotating shaft limiting cylinder.

Preferably, an annular groove is formed in the outer circumference of the rotating shaft limiting cylinder at a position corresponding to the connecting ring body, and the connecting ring body is sleeved on the annular groove.

Preferably, two the saw bit rotation axis is kept away from to correspond saw bit one end all is formed with and is used for right saw bit rotation axis direction of rotation carries out spacing rotatory stopper, the inside removal spacing groove that supplies that the rotatory stopper moved about that is formed with of rotation axis spacing section of thick bamboo and supplies rotatory stopper rotary motion's annular spacing groove.

Preferably, the movable limiting groove is a long groove parallel to the axis of the saw blade rotating shaft, and the plane of the annular limiting groove is perpendicular to the movable limiting groove.

Preferably, when the rotation axis limiting cylinder is at an initial position, the rotation limiting block is located in the annular limiting groove.

Preferably, the number of the annular limiting grooves is two, a group of the rotation limiting blocks is arranged on the two saw blade rotating shafts, and the distance between the two annular limiting grooves is equal to the distance between the two rotation limiting blocks on the two saw blade rotating shafts.

Preferably, the number of the annular limiting grooves is three, two of the saw blade rotating shafts are provided with a group of the rotation limiting blocks, and except for the annular limiting grooves occupied by the rotation limiting blocks when the rotating shaft limiting cylinders are at the initial positions, the distance between the other two annular limiting grooves is equal to the distance between the rotation limiting blocks on the two saw blade rotating shafts.

Preferably, more than two groups of the rotation limiting blocks are arranged on each of the two saw blade rotating shafts, and when the two saw blade rotating shafts are located at the first limiting connecting positions, the rotation limiting blocks are located in the annular limiting grooves; when the two saw blade rotating shafts are positioned at the second limiting connecting position, the rotating limiting blocks are positioned in the moving limiting grooves.

Preferably, the variable speed motor is controlled by a saw blade rotating shaft, the saw blade rotating shaft is provided with a resistance sensor for monitoring the resistance of the 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.

Preferably, 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 mode.

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

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 the double-cutter disc cutting machine, and starting cutting;

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

the cutting mode of the double-cutter disc cutting machine in the second step comprises a first cutting mode, a second cutting mode and a third cutting mode, wherein the first cutting mode is that the left saw blade and the right saw blade synchronously ascend and descend and synchronously rotate; the second cutting mode is that the left and right saw blades synchronously ascend and descend and asynchronously rotate; the third cutting mode is that the left and right saw blades synchronously ascend and descend and synchronously rotate.

Preferably, when the cutting machine is in a first cutting mode, the control main body fixing assembly fixes the two control main bodies, and the rotation limiting block is matched with the movement limiting groove to fix the two saw blade rotating shafts along the rotating direction.

Preferably, when the saw blade is in the second cutting mode, the two control bodies are fixed by the control body fixing assembly, and the two saw blade rotating shafts are fixed along the axis direction by the matching of the rotating limiting blocks and the annular limiting grooves.

Preferably, in a third cutting mode, the control body fixing assembly separates the two control bodies, and the rotating shaft limiting cylinder is in an initial position.

Preferably, the step two enters a downward feeding mode, and cutting is started until the cutting is carried out to the specified depth; and entering a forward feeding mode, and continuing to cut until the cutting reaches a specified distance.

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

where f01 represents the standard frictional resistance for downward feed, v01 represents the set speed for downward feed, k11 represents the first threshold coefficient of friction, and k12 is the second threshold coefficient of friction.

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

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

where f01 represents the standard frictional resistance for feed down, v02 represents the set angular velocity of rotation of the feed down blade, k21 represents the third threshold coefficient of friction, and k22 is the fourth threshold coefficient of friction.

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

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

where R represents the radius of the blade, L represents the saw blade down cutting depth, k01 is the blade side friction drag coefficient, k02 is the kerf friction drag coefficient, v01 represents the feed down set speed, and v02 represents the feed down blade rotational set angular speed.

Preferably, in the second step, the vibration condition of the rotating shaft of the saw blade is monitored, and when the vibration amplitude is larger than the set value, the rotating angular speed of the saw blade is reduced until the vibration amplitude is smaller than or equal to the set range.

Preferably, the set value of the vibration amplitude is 8-15 micrometers.

Has the advantages that:

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

(1) the traditional cutting machine cuts stones at a set operation speed in the process of cutting the quarried stones, the resistance is suddenly increased when the harder stones at a certain position are cut, the rotation speed of a saw blade and the feeding speed of the saw blade forwards cannot be adjusted timely, and then the saw blade is broken or even burnt, even violent vibration occurs, so that the saw blade is broken and scattered, hurts pedestrians and brings serious potential safety hazards; through controller control feeding device, elevating gear and variable speed motor, thereby control saw bit rotation speed and saw bit speed of feeding forward downwards, when the building stones to different hardness cut, can adjust the rotation speed and the operation speed forward downwards of saw bit according to the change of building stones, and then make the saw bit when the cutting, can make the saw bit be difficult to collapse, guarantee the normal use of saw bit, be difficult to produce the potential safety hazard, and can keep the cutting speed of saw bit in reasonable within range, can not influence work efficiency.

(2) The resistance sensor and the vibration sensor which are used for monitoring the resistance and the vibration of the saw blade are arranged on the saw blade rotating shaft, the obtained resistance data and the obtained 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) Monitoring the vibration condition of a saw blade rotating shaft, and when the vibration amplitude is larger than a set value, reducing the rotation angular speed of the saw blade 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, so that the early warning can be effectively realized, the saw blade is prevented from generating strong vibration during working to cause accidents, the saw blade is damaged, and even pedestrians are injured.

(4) A horizontal sliding rail is arranged on the double-knife disc cutting machine, a horizontal sliding block is fixedly arranged at the position of the rotation control assembly corresponding to the horizontal sliding rail, and the horizontal sliding block is sleeved in the horizontal sliding rail; the control box body is provided with a horizontal cylinder, the telescopic direction of the horizontal cylinder is parallel to the length direction of the horizontal slide rail, and the rotary control assembly is fixedly arranged at the output end of the horizontal cylinder; the structure can conveniently adjust the transverse distance of the saw blade; the double-knife disc cutting machine is also provided with a rotating shaft limiting assembly which can be matched with different cutting modes for cutting; can meet more different production requirements.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a front view of a preferred cutting machine of the present invention;

FIG. 2 is a right side view of the cutting machine of the present invention;

FIG. 3 is a first top view of the cutting machine of the present invention;

FIG. 4 is a second top view of the cutting machine of the present invention;

FIG. 5 is a third top view of the cutting machine of the present invention;

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

FIG. 7 is a schematic view of a preferred mounting sleeve of the present invention;

FIG. 8 is a schematic view of a preferred stationary cylinder of the present invention;

FIG. 9 is a schematic view of a preferred rotating shaft limiting cylinder of the present invention;

FIG. 10 is a second schematic view of a preferred rotating shaft limiting cylinder of the present invention;

FIG. 11 is a first view of the preferred support rod assembly of the present invention;

FIG. 12 is a second schematic view of the preferred support rod assembly of the present invention;

FIG. 13 is a schematic view of a preferred rotating shaft sleeve assembly of the present invention;

FIG. 14 is a schematic diagram of a control system of the cutting machine according to the present invention.

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

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

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

332. rotating the limiting block; 333. positioning blocks; 34. a rotating shaft limiting cylinder;

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

344. a connecting ring connecting portion; 35. fixing the air cylinder; 351. a fixing pin; 36. fixing the mounting sleeve; 37. a rotating shaft limiting cylinder; 38. a rotating shaft positioning cylinder; 381. a rotating shaft positioning sleeve;

382. the rotating shaft positioning buffer assembly; 4. a feed motor; 41. a speed change mechanism; 42. a shaft lever; 43. a rail wheel; 44. a chain; 5. a column; 51. a base plate; 52. a top plate;

53. a column slide block; 54. a column slide rail; 55. the cylinder is fixed by the upright post;

551. the upright post fixes the sliding block; 56. the upright post fixes the chute; 6. a track; 7. a horizontal cylinder;

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

93. an elastic fixed seat; 94. an elastic fixing rod.

Detailed Description

In order to make 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 described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, 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, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1-2, a double-blade disc cutting machine comprises a frame, a track 6, two circular saw blades 1 arranged on two sides of the track 6 and a control main body for controlling the rotation of the circular saw blades 1, wherein the frame comprises two columns 5 which are arranged on the track 6 and are perpendicular to the track 6 in the front and back direction, the two control main bodies are arranged on the columns 5 along the direction parallel to the track 6, and a first lifting device and a second lifting device which are used for respectively controlling the lifting of the two control main bodies are fixedly arranged on the columns 5.

The traditional cutting machine cuts stones at a set operation speed in the process of cutting the quarried stones, the resistance is suddenly increased when the harder stones at a certain position are cut, the rotation speed and the downward feeding speed of the saw blade cannot be adjusted in time, and then the saw blade is broken or even burnt, even violent vibration occurs, so that the saw blade is broken and scattered, hurts pedestrians and brings serious potential safety hazards; through elevating gear and variable speed motor 31 to control saw bit rotation speed and saw bit speed of giving downwards, when cutting to the building stones of different hardness, can be according to the rotation speed and the decurrent forward operation speed of the change adjustment saw bit of building stones, and then make the saw bit when the cutting, can make the saw bit be difficult to collapse, guarantee the normal use of saw bit, be difficult to produce the potential safety hazard, and can keep the cutting speed of saw bit in reasonable within range, can not influence work efficiency.

As shown in fig. 1-2, as a preferred embodiment, the frame is provided with a feeding device for controlling the feeding of the frame along the length of the rail 6.

The feeding device is arranged to control the forward feeding movement speed of the saw blade, the forward feeding cutting speed of the saw blade can be adjusted according to different resistance of the saw blade in the quarrying process, normal use of the saw blade in the cutting process is further guaranteed, and the saw blade is not prone to being broken. As a preferred embodiment, the upright 5 further comprises a bottom plate 51 and a top plate 52.

As a preferred embodiment, the feeding device is arranged on the bottom plate 51 of the upright post 5, and the feeding device is arranged at two ends of the bottom plate 51 of the upright post 5; the feeding device comprises a shaft rod 42, a feeding motor 4 and a track wheel 43; mounting parts for mounting the feeding device are formed at two ends of a bottom plate 51 of the upright post 5, shaft holes for mounting the shaft rod 42 are formed in the mounting parts, the shaft rod 42 is 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 rod 42; still include speed change mechanism 41, all be provided with the sprocket on speed change mechanism 41 and the axostylus axostyle 42, feed motor 4 drives the sprocket on speed change mechanism 41 through chain 44 and then drives the sprocket on the axostylus axostyle 42 through chain 44, and finally feed motor 4 adopts chain 44 sprocket mode drive axostylus axostyle 42 to rotate.

As shown in fig. 3 to 6, as a preferred embodiment, the control body includes a rotation control assembly for controlling the rotation of the circular saw blade 1, the rotation control assembly being installed at an output end of the elevating means and being movable up and down on the frame; the center of the circular saw blade 1 is fixedly arranged at the output end of the rotary control component.

In a preferred embodiment, the rotation control assembly includes a control box 3, a variable speed motor 31 and a blade rotating shaft 33, the variable speed motor 31 is fixedly mounted on the control box 3, the blade rotating shaft 33 is mounted on a side wall of the control box 3, and an output end of the variable speed motor 31 controls the rotation of the blade rotating shaft 33. In a preferred embodiment, an input gear 311 is mounted on the output shaft of the speed-changing motor 31, an output gear 331 is mounted on the blade rotating shaft 33, 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 upright post 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 away from the upright post 5, a horizontal sliding block is fixedly installed at a position of the rotation control assembly corresponding to the horizontal sliding rail, and the horizontal sliding block is sleeved inside the horizontal sliding rail.

In a preferred embodiment, the sliding plate 21 is provided with a horizontal cylinder 7, the extension 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.

In a preferred embodiment, a controller 8 for controlling the circular saw blade 1 to rotate and feed is further mounted on the frame, and the output end of the controller 8 is connected with the feeding device, the lifting device, the horizontal cylinder 7 and the input end of the rotation control assembly.

As shown in fig. 7-8, as a preferred embodiment, the sliding plate 21 is further provided with a control body fixing assembly for fixing two control bodies, the control body fixing assembly includes a fixing cylinder 35, fixing pins 351 and fixing mounting sleeves 36, more than one fixing cylinder 35 is fixedly mounted on the sliding plate 21 on one of the upright posts 5, each fixing cylinder 35 is provided with one fixing pin 351, and the sliding plate 21 on the other upright post 5 is provided with one fixing mounting sleeve 36 at a position corresponding to each fixing pin 351. As shown in fig. 13, as a preferred embodiment, at least one of the control boxes 3 is mounted with a rotation shaft positioning sleeve 381 assembly for positioning the blade rotation shaft 33 at the bottom.

As a preferred embodiment, the assembly of the rotating shaft positioning sleeve 381 comprises a rotating shaft positioning cylinder 38 and a rotating shaft positioning sleeve 381, the rotating shaft positioning cylinder 38 is installed on the sliding plate 21, the rotating shaft positioning sleeve 381 is fixedly installed at the movable end of the rotating shaft positioning cylinder 38, a positioning groove for positioning the circular saw blade 1 is installed on one side of the rotating shaft positioning sleeve 381 close to the saw blade rotating shaft 33, and a positioning block 333 matched with the positioning groove is arranged at a position corresponding to the positioning groove in the length direction of the surface of the saw blade rotating shaft 33.

As a preferred embodiment, a rotation shaft limiting assembly for limiting the rotation shafts 33 of the two saw blades is installed at the bottom of the control box 3, as shown in fig. 9 to 10.

As a preferred embodiment, the rotation shaft limiting assembly comprises a rotation shaft limiting cylinder 34 and a rotation shaft limiting cylinder 37, wherein the rotation shaft limiting cylinder 37 is fixedly arranged at the bottom of the box body, and the rotation shaft limiting cylinder 34 is arranged at the movable end of the rotation shaft limiting cylinder 37 and is sleeved on the outer circumference of one saw blade rotation shaft 33.

In a preferred embodiment, one end of the rotation shaft limiting cylinder 34 is mounted with a connecting ring assembly, the connecting ring assembly includes a connecting ring body 343 and a connecting ring connecting part 344 mounted below the connecting ring body 343, the connecting ring connecting part 344 is fixedly mounted at the movable end of the rotation shaft limiting cylinder 37, the connecting ring body 343 is mounted at the end of the rotation shaft limiting cylinder 34, and the connecting ring body 343 is coaxial with the rotation shaft limiting cylinder 34 and can rotate along its central axis between the rotation shaft limiting cylinder 34 and the connecting ring body 343.

As a preferred embodiment, an annular groove is formed on the outer circumference of the rotation shaft limiting cylinder 34 at a position corresponding to the connecting ring body 343, and the connecting ring body 343 is fitted on the annular groove.

As a preferred embodiment, a rotation limiting block 332 for limiting the rotation direction of the saw blade rotating shaft 33 is formed at each end of the two saw blade rotating shafts 33 away from the corresponding circular saw blade 1, and a movement limiting groove 341 for allowing the rotation limiting block 332 to move left and right and an annular limiting groove 342 for allowing the rotation limiting block 332 to rotate are formed inside the rotating shaft limiting cylinder 34.

In a preferred embodiment, the movement-limiting groove 341 is an elongated groove parallel to the axis of the blade rotation shaft 33, and the plane of the annular-shaped groove 342 is perpendicular to the movement-limiting groove 341. In a preferred embodiment, when the rotation-axis limiting cylinder 34 is in the initial position, the rotation limiting block 332 is located in the annular limiting groove 342.

In a preferred embodiment, the number of the annular limiting grooves 342 is two, a set of rotation limiting blocks 332 is disposed on each of the two blade rotating shafts 33, and the distance between the two annular limiting grooves 342 is equal to the distance between the rotation limiting blocks 332 on the two sets of blade rotating shafts 33.

In a preferred embodiment, the number of the annular limiting grooves 342 is three, a set of the rotation limiting blocks 332 is disposed on each of the two blade rotating shafts 33, and the distance between the other two annular limiting grooves 342 is equal to the distance between the rotation limiting blocks 332 on the two blade rotating shafts 33 except for the annular limiting grooves 342 occupied by the rotation limiting blocks 332 when the rotation limiting cylinder 34 is in the initial position.

As a preferred embodiment, two or more sets of rotation limiting blocks 332 are disposed on each of the two saw blade rotating shafts 33, and when the two saw blade rotating shafts 33 are located at the first limiting connection position, the rotation limiting blocks 332 are located in the annular limiting groove 342; when the two blade rotating shafts 33 are at the second limit connecting position, the rotation limit blocks 332 are both located in the movement limit grooves 341.

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

As a preferred embodiment, a display screen for displaying cutting parameters and an input port for setting the cutting parameters and the cutting mode are arranged on the cutting machine.

step one, starting a double-cutter disc cutting machine, and controlling a horizontal cylinder 7 to adjust a circular saw blade 1 to a specified transverse position;

In a preferred embodiment, in the first cutting mode, the control body fixing assembly fixes the two control bodies, and the rotation limiting block 332 cooperates with the movement limiting groove 341 to fix the two blade rotating shafts 33 in the rotating direction.

In a preferred embodiment, in the second cutting mode, the control body fixing assembly fixes the two control bodies, and the rotation limiting block 332 cooperates with the annular limiting groove 342 to fix the two blade rotating shafts 33 along the axial direction.

In a preferred embodiment, in the third cutting mode, the control body fixing assembly separates the two control bodies, and the rotation shaft limiting cylinder 34 is in the initial position.

As a preferred embodiment, the step two enters a downward feeding mode, and cutting is started until the cutting is carried out to a specified depth; and entering a forward feeding mode, and continuing to cut until the cutting reaches a specified distance.

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

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

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

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

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

In a preferred embodiment, in the second step, the vibration of the blade rotating shaft 33 is monitored, and when the vibration amplitude is greater than the set value, the rotational angular speed of the blade is reduced until the vibration amplitude is less than or equal to the set range.

In a preferred embodiment, the set value of the vibration amplitude is 8 to 15 μm.

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

as shown in fig. 1 to 14, in this embodiment, the cutting machine is a double-blade disc cutting machine, and includes a rail, a left saw blade and a right saw blade disposed at two sides of the rail, a left feeding device for controlling the left saw blade to feed forward along the rail, a right feeding device for controlling the right saw blade to feed forward, a first lifting device for controlling the left saw blade to move up and down, a second lifting device for controlling the right saw blade to move up and down, a left control body for controlling the left saw blade to rotate, and a right control body for controlling the right saw blade to rotate, wherein an output end of the controller is connected to input ends of the left feeding device, the right feeding device, the first lifting device, the second lifting device, the left control body, and the right control body.

The left control main body comprises a left rotation control assembly, and the right control main body comprises a right rotation control assembly; the left rotation control assembly comprises a left control box body, a left speed change motor and a left saw blade rotating shaft, the left speed change 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 speed change 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, the right variable speed motor is fixedly installed on the right control box body, the right saw blade rotating shaft is installed 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 installed on the right saw blade rotating shaft. The output end of the controller is connected with the input ends of the left and right rotation control components.

A left input gear is mounted on an output shaft of the left variable speed motor, a left output gear is mounted on a left saw blade rotating shaft, and the left input gear drives the left output gear to rotate; the right input gear is installed on the right variable speed motor output shaft, the right output gear is installed on the right saw blade rotating shaft, 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 installed on the left control box body, a left first transmission gear and a left second transmission gear are installed on the left transmission shaft, the left first transmission gear is meshed with the left input gear, and the left second 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 installed on the right control box body, a right first transmission gear and a right second transmission gear are installed on the right transmission shaft, the right first transmission gear is meshed with the right input gear, and the right second 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, a resistance sensor used for monitoring the resistance of the left saw blade and the right saw blade and a vibration sensor used for monitoring the vibration of the rotating shaft are installed on the left saw blade rotating shaft and the right 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.

Specifically, in this embodiment, the track includes left track and right track that four parallel bar guide rails are constituteed, still includes the left frame of installing on left track and the right frame of installing on right track, and left frame includes left stand, and right frame includes right stand, and left rotation control subassembly passes through left stand and installs on left track, and right rotation control subassembly passes through right stand and installs on right track. The first lifting device comprises a left lifting slide rail, the left lifting slide rail is arranged on the left upright post along the vertical direction, the output end of the first lifting device is provided with a left sliding plate, the left sliding plate is positioned on the left lifting slide rail and can slide along the length direction of the left lifting slide rail, and the left rotation control assembly is arranged on the left sliding plate; the second lifting device comprises a right lifting slide rail, the right lifting slide rail is installed on the right upright post along the vertical direction, the right sliding plate is installed at the output end of the second lifting device, the right sliding plate is located 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 installed on the right sliding plate. Wherein the left upright post and the right upright post are respectively composed of two upright posts which are arranged on the track from front to back and are vertical to the track. The lifting device may use one of a lead screw or an oil cylinder as a driving mechanism, which is prior art and will not be described in detail. A left horizontal sliding rail is arranged on one side, away from the left upright post, of the left sliding plate, a left horizontal sliding block is fixedly installed at the 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 sliding plate is provided with a right horizontal sliding rail on one side far away from the right upright post, a right horizontal sliding block is fixedly arranged at the corresponding position of the right rotary control assembly and the right horizontal sliding rail, and the right horizontal sliding block is sleeved inside the right horizontal sliding rail.

Still install on the slide and be used for the fixed subassembly of control body with left and right control body is fixed, the fixed subassembly of control body includes fixed cylinder 35, fixed pin 351 and fixed mounting cover 36, on the slide of more than one fixed cylinder 35 fixed mounting on one of them stand, all install a fixed pin 351 on every fixed cylinder 35, correspond position department with every fixed pin 351 on the slide on another stand and all be provided with a fixed mounting cover 36. The input end of the fixed air cylinder 35 is connected with the output end of the controller 8. The two rotating control assemblies can be synchronously lifted by arranging the control main body fixing assembly, synchronous lifting can be realized by only starting one lifting device in the operation process, the stability of the rotating control assemblies in the movement process can be ensured when the two lifting devices are started, and the conditions of shaking and the like are not easy to occur.

The left sliding plate is provided with a left horizontal cylinder, the telescopic 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 sliding plate is provided with a right horizontal cylinder, the telescopic direction of the right horizontal cylinder is parallel to the length direction of the right horizontal sliding rail, and the right rotary control assembly is fixedly arranged 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, a rotating shaft positioning sleeve assembly for positioning the rotating shaft of the saw blade is installed at the bottom of at least one control box body.

The rotation axis locating sleeve subassembly includes rotation axis location cylinder and rotation axis locating sleeve, and rotation axis location cylinder installs on the slide, and rotation axis locating sleeve fixed mounting is at rotation axis location cylinder expansion end, and the rotation axis locating sleeve is close to saw bit rotation axis one side installation and is formed with the constant head tank that advances line location to the saw blade, and saw bit rotation axis surface length direction corresponds position department with the constant head tank and is equipped with the locating piece with constant head tank complex.

The input end of the rotating shaft positioning cylinder is connected with the output end of the controller. When the saw blade rotates for one time or not, the operation mode needs to be changed, the saw blade rotating motion is closed, the saw blade speed is reduced gradually, at the moment, the cylinder is started, the rotating shaft positioning sleeve arranged on the movable end of the cylinder is close to the rotating shaft along with the movement of the movable end of the cylinder, the setting distance between the rotating shaft positioning sleeve and the rotating shaft is smaller than the height of the rotating shaft positioning block on the saw blade rotating shaft, when the rotating shaft positioning block rotates to one side of the rotating shaft positioning sleeve, the rotating shaft positioning sleeve and the rotating shaft positioning block will rub, the rotating speed of the saw blade is reduced gradually, when the rotating speed of the saw blade is enough to rotate for one circle, but the energy required by the rotation is smaller than the energy required by overcoming the friction between the rotating shaft positioning sleeve and the rotating shaft positioning block, the saw blade stops and is accommodated in the rotating shaft positioning groove of the rotating shaft positioning sleeve, and the positioning of the rotating shaft position is realized, and then realize the location of rotation axis stopper.

Specifically, the positioning groove is an arc-shaped groove, the distance between a notch at one end of the arc-shaped groove and the rotating shaft is greater than the height of the rotating shaft positioning block, and the distance between a notch at the other end of the arc-shaped groove and the rotating shaft is less than the height of the rotating shaft positioning block; the rotating direction of the rotating shaft positioning block rotates from one end of the positioning groove, which is far away from the rotating shaft, to the other end of the positioning groove; the contact one end of rotation axis locating piece lower extreme and constant head tank sets up to the arcwall face, and the tangent point of arcwall face and constant head tank is located the constant head tank inside.

The rotating shaft positioning sleeve can be slidably arranged at the movable end of the rotating shaft positioning cylinder along the length direction of the movable end of the rotating shaft positioning cylinder.

Specifically, a rotating shaft positioning buffer assembly 382 for buffering a rotating shaft positioning sleeve is further mounted on the rotating shaft positioning cylinder. Rotation axis location buffer unit 382 includes buffer spring, buffer seat, buffering pole, and the rotation axis location is sheathe in and is opened the annular mounting groove that has the installation buffering pole, and the buffering pole is installed on the buffer seat, and the buffer spring cover is established on the buffering pole, and the buffering pole is installed inside the annular mounting groove, and buffer spring one end is connected with the buffer seat, and one end is installed peripherally at the annular mounting groove.

In this embodiment, the bottom of the control box body is also provided with a rotating shaft limiting assembly for limiting two saw blade rotating shafts.

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 is sleeved on the outer circumference of one saw blade rotating shaft; the rotation shaft limiting cylinder 34 can move along the axial direction of the rotation shaft of the saw blade by the driving of the movable end of the rotation shaft limiting cylinder 37. The input end of the rotating shaft limiting cylinder 37 is connected with the output end of the controller 8.

The connecting ring assembly is installed at one end of the rotation shaft limiting cylinder 34 and comprises a connecting ring body 343 and a connecting ring connecting part 344 installed below the connecting ring body 343, the connecting ring connecting part 344 is fixedly installed at the movable end of the rotation shaft limiting cylinder 37, the connecting ring body 343 is installed at the end part of the rotation shaft limiting cylinder 34, and the connecting ring body 343 is coaxial with the rotation shaft limiting cylinder 34 and can rotate along the central axis thereof between the rotation shaft limiting cylinder 34 and the rotation shaft of the saw blade.

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 of each saw blade rotating shaft, which is far away from the corresponding saw blade, is provided with a rotating limiting block 332 for limiting the rotating direction of the saw blade rotating shaft, and a movable limiting groove 341 for enabling the rotating limiting block 332 to move left and right and an annular limiting groove 342 for enabling the rotating limiting block 332 to rotate are formed inside the rotating shaft limiting cylinder 34.

The movable limiting groove 341 is a long groove parallel to the axis of the saw blade rotation shaft, and the plane of the annular limiting groove 342 is perpendicular to the movable limiting groove 341.

When the rotation-axis limiting cylinder 34 is at the initial position, the rotation limiting block 332 is located in the annular limiting groove 342.

The number of the annular limiting grooves 342 is two, a set 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 saw blade rotating shafts.

The number of the annular limiting grooves 342 is three, a set of rotary limiting blocks 332 are arranged on the two saw blade rotating shafts, and except the annular limiting grooves 342 occupied by the rotary limiting blocks 332 when the rotating shaft limiting cylinder 34 is at the initial position, the distance between the other two annular limiting grooves 342 is equal to the distance between the rotary limiting blocks 332 on the two saw blade rotating shafts.

More than two groups of rotation 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 connecting position, the rotation limiting blocks 332 are positioned in the annular limiting grooves 342; when the two blade rotation shafts are in the second limit connection position, the rotation limit blocks 332 are both in the movement limit grooves 341.

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 between left stand bottom plate and the right stand bottom plate, between left stand roof and the right stand roof and be used for carrying out the fixed subassembly of stand fixed to left stand and right stand. The stand column fixing assembly is arranged, so that the integral stability of the cutting machine can be guaranteed in the synchronous forward feeding process.

The stand fixing assembly comprises a stand fixing cylinder 55, stand fixing sliding blocks 551 and stand fixing sliding grooves 56, the stand fixing cylinder 55 is fixedly installed on a left stand bottom plate or a left stand top plate, a stand fixing sliding block 551 is installed on each stand fixing cylinder 55, each stand fixing sliding block 551 is correspondingly provided with a stand fixing sliding groove 56 to match with the stand fixing sliding groove, and the stand fixing sliding grooves 56 are installed on a right stand bottom plate or a right stand top plate. The input end of the upright post fixing air cylinder 55 is connected with the output end of the controller 8.

An infrared emitter (not shown) for calibrating the column fixing slide 551 is installed in the column fixing slide 5656, and an infrared receiving plate (not shown) corresponding to the infrared emitter is installed on one side of the column fixing slide 551 close to the column fixing slide 56.

The left upright post top plate and the right upright post top plate, and the left upright post bottom plate and the right upright post bottom plate are connected through upright post slide rails 54 and upright post slide blocks 53.

The left upright post top plate and the left upright post bottom plate are provided with upright post slide rails 54, and the right upright post top plate and the right upright post bottom plate are provided with upright post slide blocks 53 which are sleeved in the corresponding upright post slide rails 54. The arrangement of the column slide rail 54 and the column slide block ensures that the stability of the movement can be maintained when asynchronous feeding is performed.

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 track wheel; the left mounting part is provided with a left shaft hole for mounting a left shaft lever, the left shaft lever is mounted on the left shaft hole along the width direction of the track, and the left track wheels are mounted at the two ends of the left shaft lever; the left feeding motor drives a left chain wheel on the left speed change mechanism through a left chain so as to drive a left chain wheel on the left shaft lever, and finally the left feeding motor drives the left shaft lever to rotate in a chain and 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 track wheel; a right mounting part for mounting a feeding device is formed at two ends of the bottom plate of the right upright post, a right shaft hole for mounting a right shaft rod is formed in the right mounting part, the right shaft rod is mounted on the right shaft hole along the width direction of the rail, and right rail wheels are mounted at two ends of the right shaft rod; still include right speed change mechanism, all be provided with the right sprocket on right speed change mechanism and the right axostylus axostyle, right feeding motor drives the right sprocket on the right speed change mechanism and then drives the right sprocket on the axostylus axostyle through right chain, and final right feeding motor adopts the chain sprocket mode to drive the right axostylus axostyle rotation. Specifically, in this embodiment, a disc fixing assembly for fixing the non-center position of the saw blade is further installed on the saw blade rotating shaft.

The disc fixing assembly comprises a disc frame body and more than 3 supporting rod assemblies which are uniformly distributed on the surface of the disc frame body along the circumferential direction, the center of the disc frame body is fixedly installed on the saw blade rotating shaft, and the axis of each supporting rod assembly is parallel to the saw blade rotating shaft. The distance from the central axis of each support rod assembly to the central axis of the blade rotational axis is equal.

The radius R0 of the saw blade is more than or equal to 2.5m, and the distance R1 between the central axis of the support rod assembly and the central axis of the rotating shaft of the saw blade is R0/(10-14).

The supporting rod assembly comprises a supporting rod main body 9 and a supporting rod fixing assembly used for fixing the saw blade at the end part of the supporting rod main body 9, external threads are formed at one end, fixed by the supporting rod main body 9 and the saw blade, of the supporting rod main body, and a supporting rod mounting hole for the supporting rod main body 9 to pass through is formed in the position, corresponding to the supporting rod main body 9, of the saw blade.

The supporting rod fixing assembly comprises a first stop block 91 and a second stop block 92 which are used for fixing two sides of the saw blade, the first stop block 91 and the second stop block 92 are tightly attached to the side faces 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 supporting rod main body 9. The first block 91 is provided with an elastic fixing component for applying pressure to the first block on the surface far away from the saw blade.

When the saw blade vibrates violently, the first stop block has transverse acting force, at the moment, the first stop block is damaged finally due to the fact that the first stop block tends to move transversely due to the violent vibration, and the saw blade cannot be locked; if the saw bit takes place violent vibration, lead to first dog to destroy, when unable fixing the saw bit, the fixed subassembly of elasticity that sets up can also play the effect of interim fixed 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.

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 and abuts against the first stop block 91 at a side close to the first stop block 91. There is certain clearance or the loose fender of elasticity fixing base in first dog one side between elasticity fixing base and the first dog to further support firmly on first dog through pressure spring wherein.

A fixing rod sliding groove is formed in the first stopper 91 at a position corresponding to the elastic fixing rod 94, and the elastic fixing rod 94 is sleeved in the fixing rod sliding groove 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 mounted on the elastic fixing seat 93, and the other end of the pressure spring is fixedly mounted on the first stop block 91 at the peripheral position of the fixed rod chute. The pressure spring is a tower spring, and the larger radius end of the pressure spring is fixedly arranged on the first stop block 91 at the peripheral position of the chute of the fixed rod.

The disc fixing assembly is mainly used for enhancing the anti-vibration capability of the saw blade, enhancing the cutting stability of the disc and preventing the saw blade from being damaged or accidents and the like due to abnormal vibration.

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

the cutting mode of the double-cutter disc cutting machine in the second step comprises a first cutting mode, a second cutting mode, a third cutting mode and a fourth cutting mode, wherein the first cutting mode comprises synchronous lifting, synchronous rotation and synchronous forward feeding of a left saw blade and a right saw blade; the second cutting mode is that the left and right saw blades synchronously ascend and descend, asynchronously rotate and synchronously feed forwards; the third cutting mode is that the left and right saw blades synchronously ascend and descend, synchronously rotate and synchronously feed forwards; the fourth cutting mode is that the left and right saw blades synchronously ascend and descend, synchronously rotate and synchronously feed forwards.

When the cutting machine is in the first cutting mode, the control upright post fixing air cylinder 55 fixes the two upright posts, the control main body fixing assembly fixes the two control main bodies, and the rotation limiting block 332 is matched with the movement limiting groove 341 to fix the two saw blade rotating shafts along the rotating direction.

When the saw blade cutting machine is in a first cutting mode, the control upright post fixing air cylinder 55 fixes the two upright posts, the control main body fixing assembly fixes the two control main bodies, then the rotating shaft limiting cylinder 34 can move along the axis direction of the other saw blade rotating shaft under the driving of the movable end of the rotating shaft limiting air cylinder 37, the left saw blade rotating shaft and the right saw blade rotating shaft are sleeved in the same rotating shaft limiting cylinder 34, the rotating limiting blocks 332 on the left saw blade rotating shaft and the right saw blade rotating shaft are matched with the moving limiting grooves 341, then one of the variable speed motors is started, and the two saw blades can rotate synchronously.

When the cutting machine is in the second cutting mode, the control upright post fixing air cylinder 55 fixes the two upright posts, the control main body fixing assembly fixes the two control main bodies, and the rotation limiting block 332 is matched with the annular limiting groove 342 to fix the two saw blade rotating shafts along the axis direction.

When the saw blade cutting machine is in a second cutting mode, the control upright post fixing air cylinder 55 fixes the two upright posts, the control main body fixing assembly fixes the two control main bodies, then the rotating shaft limiting cylinder 34 can move along the axis direction of the other saw blade rotating shaft under the driving of the movable end of the rotating shaft limiting air cylinder 37, the left saw blade rotating shaft sleeve and the right saw blade rotating shaft sleeve are sleeved in the same rotating shaft limiting cylinder 34, the rotating limiting blocks 332 on the left saw blade rotating shaft and the right saw blade rotating shaft are matched with the annular limiting groove 342, then the left variable speed motor and the right variable speed motor are started, and the two saw blades can rotate asynchronously.

When the cutting machine is in the third cutting mode, the control upright post fixing air cylinder 55 fixes the two upright posts, the control main body fixing assembly separates the two control main bodies, and the rotating shaft limiting cylinder 34 is at the initial position.

In the fourth cutting mode, the control column fixing air cylinder 55 separates the two columns, the control body fixing component separates the two control bodies, and the rotating shaft limiting cylinder 34 is at the initial position.

The saw bit is at rotatory in-process, its rotational speed may have little disparity, make it take place asynchronous rotation, therefore the spacing section of thick bamboo of rotation that sets up, make it be in respectively under different modes and remove spacing groove 341 or annular spacing groove 342, when the saw bit rotation axis of left and right both ends need synchronous rotation, the rotation axis stopper on the two all is in removing inside the spacing groove 341, finally make it have same initial condition, and also difficult emergence asynchronous rotation in the operation in the future, when the asynchronous rotation of left and right saw bit rotation axis, it can hold in the annular groove spacing groove, take place asynchronous rotation.

The double-knife disc cutting machine in the embodiment can have different operation modes, can better adapt to different production requirements, and is more diversified in use.

The control method of the single saw blade in the double-blade disc cutting machine in the embodiment comprises the following control steps:

starting a cutting machine, entering a downward feeding mode, and starting cutting until the cutting machine cuts to a specified depth;

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

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

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

The first friction threshold coefficient k11 satisfies: 0.05< k11 < 0.20, and a second threshold coefficient of friction k12 satisfies: 0.30< k12 is less than or equal to 0.50.

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

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

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

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

where f02 represents the forward feed standard frictional resistance, v01 represents the forward feed set speed, k31 represents the fifth threshold coefficient of friction, and k32 is the sixth threshold coefficient of friction.

The fifth friction threshold coefficient k31 satisfies: 0.05< k31 ≦ 0.20, and a sixth threshold coefficient of friction k32 satisfies: 0.30< k32 is less than or equal to 0.50.

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

where f02 represents the standard frictional resistance to forward feed, v02 represents the set angular speed of forward feed blade rotation, k41 represents the seventh threshold coefficient of friction, and k22 is the eighth threshold coefficient of friction.

The seventh friction threshold coefficient k41 satisfies: 0.05< k41 ≦ 0.20, and an eighth threshold coefficient of friction k42 satisfying: 0.30< k42 is less than or equal to 0.50.

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

where R represents the radius of the blade, L0 represents the blade cut depth setting, k01 represents the blade flank friction drag coefficient, k02 represents the kerf friction drag coefficient, v03 represents the forward feed set speed, and v04 represents the forward feed blade rotational set angular speed.

In the single saw blade control method, 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 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 a set range.

The set interval of the vibration amplitude is any interval of 6-18 micrometers, and is preferably 8-15 micrometers. More preferably 10 to 12 microns.

Specifically, in the present embodiment, two vibration amplitude setting intervals are provided, and each setting interval is any one interval of 6 to 18 micrometers.

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

step one, reducing the feeding speed until the vibration amplitude is reduced to be lower than the lower limit of a first set interval;

if the vibration amplitude is not reduced below the lower limit of the first set interval after the feeding speed is reduced to half of the initial speed, 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;

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

In the third step, when the rotation angular velocity or the feed velocity is increased and the vibration amplitude is not less than the upper limit of the second setting interval, the rotation angular velocity and the feed velocity are kept unchanged until the vibration amplitude is reduced to not more than the lower limit of the second setting interval, and then the rotation angular velocity or the feed 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:

where v0 represents the feed speed without being affected by the amplitude, n is an integer greater than or equal to 1, preferably 3, formula (1) triggers when the amplitude of vibration is greater than the upper limit of the first set interval and terminates when the amplitude of vibration reaches the lower limit of the first set interval; equation (2) is triggered when the rotational speed has increased to a rotational angular speed that is not affected by an amplitude that is less than a second set interval lower limit and the feed speed is less than v0/2, and is terminated when v0' is v0/2 or when the amplitude reaches above the second set interval upper limit; equation (3) is triggered when the rotational angular velocity has increased to the rotational angular velocity without being affected by the amplitude, and the amplitude is smaller than the second set interval upper limit and v0' ≧ v0/2, and is terminated when the feed speed reaches v0 or the amplitude reaches or exceeds the second set interval upper limit; where v0 "is the initial feed speed at the time of trigger.

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 rotation speed without being affected by the amplitude, n is an integer greater than or equal to 1, preferably 3, 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 interval lower limit, and is terminated when the vibration amplitude reaches above the second set interval upper limit or when the rotational angular velocity reaches v 0.

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

When the monitored vibration amplitude is not within the set range, the adjustment of the rotation angular speed and the downward forward feeding speed of the saw blade should be preferentially adjusted to be less than or equal to the set range by the adjustment of the vibration condition.

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

Claims

1. The utility model provides a double knives disc cutting machine, its characterized in that includes frame, track, sets up two circular saw blades in track both sides and is used for control the rotatory control main part of circular saw blade, the frame sets up around including and installs two on the track with track vertically stand, two the control main part along with track parallel direction installs on the stand, fixed mounting has and is used for controlling two respectively on the stand first elevating gear and the second elevating gear that the control main part goes up and down.

2. A double-bladed disc cutting machine according to claim 1, characterized in that the frame is provided with feed means for controlling the feed of the frame along the length of the rail.

3. The double-blade disc cutting machine according to claim 2, wherein the control body includes a rotation control assembly for controlling rotation of the circular saw blade, the rotation control assembly being mounted on an output end of the lifting device and movable up and down on the frame; the center of the circular saw blade is fixedly arranged at the output end of the rotary control assembly.

4. The double-blade disc cutting machine according to claim 3, wherein the rotation control assembly comprises a control box body, a variable speed motor and a saw blade rotating shaft, the variable speed motor is fixedly installed on the control box body, the saw blade rotating shaft is installed on a side wall of the control box body, and an output end of the variable speed motor controls the saw blade rotating shaft to rotate.

5. The double-pole circular disc cutting machine according to claim 4, wherein a rotating shaft positioning sleeve assembly for positioning the saw blade rotating shaft is installed at the bottom of at least one of the control boxes.

6. The double-blade disc cutting machine according to claim 5, wherein the rotating shaft positioning sleeve assembly includes a rotating shaft positioning cylinder and a rotating shaft positioning sleeve, the rotating shaft positioning cylinder is mounted on the sliding plate, the rotating shaft positioning sleeve is fixedly mounted at a movable end of the rotating shaft positioning cylinder, a positioning groove for positioning the circular saw blade is formed in a position of the rotating shaft positioning sleeve, which is close to one side of the saw blade rotating shaft, and a positioning block matched with the positioning groove is arranged at a position, corresponding to the positioning groove, in a surface length direction of the saw blade rotating shaft.

7. The double-blade disc cutting machine according to claim 4, wherein a rotation shaft limiting assembly for limiting two rotation shafts of the saw blade is installed at the bottom of the control box body.

8. A control method of a double-knife disc cutting machine is characterized by comprising the following control steps:

9. The control method of the double-blade disc cutting machine according to claim 8, wherein in the first cutting mode, the control body fixing assembly fixes the two control bodies, and the rotation limiting block is engaged with the movement limiting groove to fix the two saw blade rotating shafts in the rotation direction.

10. The control method of the double-blade disc cutting machine according to claim 9, wherein in the second cutting mode, the control body fixing assembly fixes the two control bodies, and the rotation limiting block is engaged with the annular limiting groove to fix the two saw blade rotating shafts in the axial direction.