CN115741185A

CN115741185A - Cutting bed tool changing system and control method thereof

Info

Publication number: CN115741185A
Application number: CN202211399669.3A
Authority: CN
Inventors: 陈金国; 郭瑞洲; 郭华忠; 李西兵; 李勇; 林元熙
Original assignee: Putian University
Current assignee: Putian University
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-07

Abstract

The invention relates to a cutting bed tool changing system and a control method thereof, and the cutting bed tool changing system comprises a tool changing device, a detection device and a control device, wherein the tool changing device comprises a tool locking assembly and a tool magazine assembly, the tool magazine assembly comprises a tool magazine body, a tool box mechanism, a tool feeding mechanism and a trigger unit.

Description

Cutting bed tool changing system and control method thereof

Technical Field

The invention relates to the field of automatic tool changing of cutting tables, in particular to a tool changing system of a cutting table and a control method thereof

Background

Along with the cutting efficiency and the promotion of cutting speed of cutting bed, the wearing and tearing of cut-off knife can sharply accelerate, the cutter blade deformation that the high-speed cutting brought has also been improved simultaneously and the damaged risk, the deformation of blade can make the cutting orbit skew, the damaged fibrous structure that can destroy the surface fabric of blade, produce the waste material, increase the load of tool bit, compare in the toolchanger of traditional lathe, the blade of cutting bed cutter is little and thin, the blade holder of blade and fixed blade needs high-speed vibrations, consequently, can't install large-scale automatically controlled anchor clamps on the blade holder, need artifical change the blade, and frequently shut down, artifical control and change the blade can influence the work efficiency and the quality of cutting bed, consume the manpower, produce too much waste material, the waste resource, increase the cost, also do not do benefit to the unmanned development in cutting room simultaneously.

In order to meet the requirement of an unmanned cutting bed, the cutting bed tool needs to be subjected to online detection, tool changing is carried out according to a detection result, and an existing tool changing structure does not have a tool detecting function, so that real-time monitoring and automatic replacement of the cutting bed tool cannot be realized.

Disclosure of Invention

Therefore, a cutting bed tool changing system is needed to be provided, the problem that manual monitoring and blade changing can affect the working efficiency and quality of a cutting bed and are not beneficial to unmanned development of a cutting room is solved, automatic changing of the cutting bed blade can be achieved, and the main structure is based on the existing cutting bed and is convenient to update and transform on the existing cutting bed.

In order to achieve the above object, the inventor provides a cutting bed tool changing system, which comprises a tool changing device, a detection device and a control device;

the tool changing device comprises a tool locking assembly and a tool magazine assembly;

the cutter locking assembly comprises a cutter holder and a set screw, the cutter holder is arranged on a cutter rod of the cutter, the set screw is positioned in the cutter holder, and the tail part of the set screw is provided with a rotating part;

the tool magazine component comprises a tool magazine body, a tool magazine mechanism, a tool feeding mechanism and a triggering unit, the tool magazine body is connected to the machine tool, the tool magazine mechanism is mounted on the tool magazine body, the tool feeding mechanism is mounted on the tool magazine body, the tool magazine mechanism is used for storing blades, the tool feeding mechanism is used for taking and feeding the blades, the tool locking component is mounted on a tool bit of a cutting machine tool and used for loosening and tightening the blades on the tool bit, the triggering unit is located on the tool magazine body or the tool feeding mechanism, and the triggering unit is used for triggering the rotating part of the set screw to rotate;

the control device is arranged on the machine head or the machine tool and is connected with the tool changing device;

the detection device is installed on the machine head or the machine tool and comprises an information acquisition unit and an information processing unit, the information acquisition unit is connected with the information processing unit, the information processing unit is connected with the control device, and the detection unit is used for detecting whether the blade fails or not.

As a preferable structure of the present invention, the rotating portion of the set screw is an outer cantilever, the outer cantilever is axially perpendicular to the rotating shaft of the set screw, the outer cantilevers are symmetrically arranged, and the rotating portion of the set screw is located outside the cutting tool of the cutting bed.

As a preferable structure of the invention, the trigger unit further comprises a first driver and an ejector rod, the first driver is arranged on the cutter feeding mechanism, the ejector rod is connected to the cutter feeding mechanism or the tool magazine body in a sliding manner, the first driver is connected with the ejector rod, and the first driver is used for driving the ejector rod to move up and down.

As a preferred structure of the invention, the magazine mechanism comprises a magazine body, a blade dragging plate and a spring, the magazine body is connected to the magazine body, a cavity for the stacked blades to give way is arranged in the magazine body, a blade outlet is arranged on the magazine body, the blade dragging plate is slidably connected in the cavity of the magazine body, and the spring is connected between the magazine body and the blade dragging plate;

the tool feeding mechanism comprises a second driver and a tool carriage, the tool carriage is connected to the tool magazine body in a sliding mode, a partition plate is arranged on the tool magazine body, the tool carriage and the partition plate are attached to each other, a tool groove is formed in one side face, close to the partition plate, of the tool carriage, the second driver is installed on the tool magazine body and connected with the tool carriage and used for driving the tool carriage to slide, and a tool outlet of the tool magazine body abuts against the tool carriage.

As a preferable structure of the invention, the knife feeding mechanism further comprises a third driver and a top block, the third driver is installed on the knife magazine body, a notch is formed in the partition plate, the top block is located in the notch of the partition plate, the top block is connected to the output end of the third driver, and the top block is used for tightly jacking the knife blade.

As a preferable structure of the invention, the tool magazine assembly further comprises a waste material box, the waste material box is mounted on the tool magazine body and is positioned below the groove opening of the partition plate, and the bottom of the groove opening of the partition plate is provided with an opening.

As a preferred structure of the invention, the information acquisition unit is an image acquisition unit, the information processing unit is an image processing unit, the light source, the image acquisition unit and the image processing unit are mounted on a machine head or a machine tool, the image acquisition unit is connected with the image processing unit, the image processing unit is connected with the control device, the image acquisition unit is used for acquiring fabric incision images, and the image processing unit is used for extracting and analyzing fabric incision shapes.

As a preferable structure of the invention, the information acquisition unit is a torque sensor, the information processing unit is a torque processor, the torque sensor is connected to a motor of the cutter and used for measuring the output torque of the motor in real time, and the torque processor is connected with the torque sensor and used for receiving and processing torque information.

As a preferable structure of the present invention, the control device is a single chip microcomputer or a plc controller.

Correspondingly, the application also provides a control method of the cutting bed tool changing system, which comprises the following steps;

step 1, an information acquisition unit of a detection device acquires blade working parameters and sends the acquired blade working parameters to an information processing unit, the information processing unit compares the acquired blade working parameters with standard working parameters to judge whether a blade fails or not, judges whether the blade fails or not and sends failure information to a control device;

step 2, the control device receives the failure information of the blade, controls the cutting machine to stop cutting and transfers the cutter to a designated position;

step 3, the control device controls the trigger unit to trigger the rotating part of the set screw to rotate, and the blade on the cutter head is loosened;

step 4, the control device controls the cutter feeding mechanism to move the blade into the cutter storehouse component;

step 5, the control device controls the cutter feeding mechanism to take out a new blade from the cutter box mechanism;

and 6, controlling the trigger unit to trigger the rotating part of the set screw to rotate by the control device, and locking the blade on the cutter head.

The system and the control method thereof can realize the automatic replacement of the blade after the blade of the cutting bed fails, and only needs to replace the set screw of the original blade to modify and install the original cutting bed, thereby realizing the function upgrade of automatic tool changing. In addition, can carry out real-time on-line measuring blade state through detection device, still work after avoiding the blade to become invalid, lead to producing too much waste material, replace the manual work to carry out blade state supervision and blade change, can improve greatly and tailor quality and efficiency, reduce the production of waste material, reduction in production cost reduces time and the human cost of artifical tool changing.

Drawings

Fig. 1 is a schematic perspective view of a cutter locking mechanism mounted on a cutter bar according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a tool with a blade locking mechanism according to one embodiment of the present invention;

FIG. 3 is a partial right side view of a tool with a knife locking mechanism according to one embodiment of the present invention;

fig. 4 is a schematic perspective view of a magazine mechanism according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a magazine mechanism according to one embodiment of the present invention;

FIG. 6 is a perspective view of a tool changer according to an embodiment of the present invention;

FIG. 7 is a schematic top view of a tool changer according to an embodiment of the present invention;

FIG. 8 is a perspective view of a new tool of the tool changer according to one embodiment of the present invention;

FIG. 9 is a perspective view of a tool changer according to an embodiment of the present invention;

FIG. 10 is a flow chart of operation of a tool changing system according to one embodiment of the invention;

fig. 11 is a schematic perspective view of a tool changer of the tool feeding mechanism according to an embodiment of the invention.

Description of reference numerals:

11. a tool apron; 12. a set screw; 121. a rotating part; 1201. locking the cantilever; 1202. releasing the cantilever;

20. a tool magazine body; 21. a partition plate; 2101. a notch; 2101a, a first notch; 2101b, a second notch;

30. a magazine mechanism; 31. a magazine body; 32. a cutter dragging plate; 33. a spring; 34. an end cap; 35. a knife edge is formed;

41. a second driver; 42. a carriage; 43. a third driver; 4301. a top block; 4201. a cutter groove;

50. a top rod;

60. a cutter; 61. a blade; 62. knife bar

71. A fifth driver; 72. pushing a cutter rod; a feed bar 721;

81. a sixth driver; 82. a rotating arm; 83. a seventh driver; 84. and (4) clamping.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

The invention relates to a tool changing system of a cutting machine, which is applied to changing a blade 61 of a cutting machine tool 60, wherein the cutting machine comprises a machine tool body, a cross beam, a machine head and the tool 60, the cross beam is slidably arranged on the table surface of the machine tool body, the machine head is slidably arranged on the cross beam, the tool 60 is slidably arranged on the machine head, the tool 60 is a high-speed vibrating tool module, and the high-speed vibrating tool module comprises a shell, a high-speed motor, a crankshaft connecting rod, a tool bar 62 and the blade 61.

Example 1

The tool changing system of the cutting bed comprises a tool changing device, a detection device and a control device.

as shown in fig. 1 and 2, the cutter locking assembly includes a cutter holder 11 and a set screw 12, the cutter holder 11 is mounted on a cutter bar 62 of a cutter 60, two threaded holes are formed in two sides of the cutter holder 11, the two set screws 12 are located in the two threaded holes, one is used for fixing the cutter holder 11 to the cutter bar 62, the other is used for fixing the blade 61 to the cutter bar 62, a tail portion of the set screw 12 of the fixed blade 61 extends outwards to the outside of a housing of the cutter 60, and a rotating portion 121 is provided at a tail end of the set screw 12, the rotating portion 121 of the set screw 12 is an outer cantilever located outside the cutter 60, the outer cantilever is axially perpendicular to a rotating shaft of the set screw 12, and the outer cantilevers are symmetrically arranged, as shown in fig. 3, one side is a locking cantilever 1201, and the other side is a release cantilever 1202.

The tool magazine component comprises a tool magazine body 20, a tool magazine mechanism 30, a tool feeding mechanism and a triggering unit, the tool magazine body 20 is connected to the edge of a cross beam of a machine tool, the tool magazine mechanism 30 is installed on the tool magazine body 20, the tool feeding mechanism is installed on the tool magazine body 20, the tool magazine mechanism 30 is used for storing a blade 61, the tool feeding mechanism is used for taking and feeding the blade 61, the tool locking component is installed on a tool bit of a cutting tool 60 of a cutting machine and used for loosening and tightening the blade 61 on the tool bit, the triggering unit is located on the tool magazine body 20 or the tool feeding mechanism, and the triggering unit is used for triggering the rotating part 121 of the set screw 12 to rotate;

the trigger unit comprises a first driver (not shown in the figure) and a push rod 50, the first driver is arranged on the tool magazine body 20, the push rod 50 is connected to the tool magazine body 20 in a sliding mode, the first driver is connected with the push rod 50, and the first driver is used for driving the push rod 50 to move up and down. Further, the top of the ejector rod 50 is of an arc shape, so that the ejector rod 50 is prevented from being left with a tip and is abutted against a cantilever to break the cantilever, and an outer cantilever of the ejector rod 50 has an upward radian, so that when the ejector rod 50 collides with the cantilever, the cantilever rotates more smoothly, the acceleration of the cantilever during rotation is reduced, the impact load during rigid contact is reduced, and the damage to the cantilever and the ejector rod 50 is avoided.

Move to specific position through control cutter 60, first driver drives ejector pin 50 and rises the pine of the rotating part 121 of conflict holding screw 12 and takes off cantilever 1202, and trigger rotating part 121 and rotate, rotating part 121 drives holding screw 12 and rotates, unblock blade 61, make blade 61 deviate from and change, after changing blade 61, cutter 60 adjustment position locking cantilever 1201, make holding screw 12 top holding blade 61, accomplish the installation of new blade 61, realize quick unblock and the locking of blade 61, make things convenient for the automatic change of blade 61, this structure need not through electronic or pneumatic fixture clamp tight blade 61, can not influence the high-speed cutting performance of blade 61, do not change the structure of former cutter 60 simultaneously, can reequip and install original cutting bed, realize the function upgrade of automatic tool changing, improve cutting quality and efficiency, reduce artifical time and human cost.

As shown in fig. 4 and 5, the magazine mechanism 30 includes a magazine body 31, a blade dragging plate 32 and a spring 33, the magazine body is connected to the magazine body 20 by means of a snap-fit connection, the magazine mechanism 30 is convenient to detach and replace, a cavity for the stacked blades 61 to move is arranged inside the magazine body 31, a knife outlet 35 is arranged on the magazine body 31, an end cover 34 which is opened in a sliding manner is arranged at the knife outlet 35 of the magazine body 31, protrusions and grooves are arranged on two sides of the magazine body 31 for fixing and positioning the magazine body 31, the blade dragging plate 32 is connected inside the cavity of the magazine body 31 in a sliding manner, the spring 33 is connected between the magazine body 31 and the blade dragging plate 32, the entire magazine type magazine is small in size and simple in structure, a large number of blades 61 can be stored, a large number of blades 61 are provided for storage of a cutting bed automatic device, and sufficient spare blades are ensured.

As shown in fig. 6 to 8, the tool feeding mechanism includes a second driver 41 and a carriage 42, the carriage 42 is slidably connected to the tool magazine body 20, the tool magazine body 20 is provided with a partition plate 21, the carriage 42 and the partition plate 21 are attached to each other, one side surface of the carriage 42 close to the partition plate 21 is provided with a tool slot 4201, the tool slot 4201 has the same shape as the bottom of the blade 61, the tool slot 4201 has the same thickness as the blade 61, the tool slot 4201 has a depth one third of the length of the blade 61, the second driver 41 is mounted on the tool magazine body 20, the second driver 41 is connected to the carriage 42 for driving the carriage 42 to slide, and the partition plate 21 is provided with a recess for giving way to the tool magazine body 31, so that the tool outlet 35 of the tool magazine body 31 can abut against the carriage 42. The blades 61 in the knife box cling to the drag plate 42 under the action of the spring 33, the knife slot 4201 is aligned with the knife outlet 35 by moving the drag plate 42, the frontmost blade 61 is pressed into the knife slot 4201 under the action of the spring 33, only one blade 61 enters the knife slot 4201 because the thickness of the knife slot 4201 is one blade 61, the drag plate 42 is continuously moved, the knife slot 4201 drives the blade 61 in the knife slot 4201 to move the blade to a specified position, and the structure achieves two actions of knife taking and knife feeding by moving the drag plate 42, and is simple in structure and good in stability.

Further, the cutter feeding mechanism further comprises a third driver 43 and a top block 4301, the third driver 43 is mounted on the magazine body 20, a notch 2101 is formed in the partition plate 21, the top block 4301 is located in the notch 2101 of the partition plate 21, the top block 4301 is connected to the output end of the third driver 43, and the top block 4301 is used for tightly pushing the blade 61. The tool magazine assembly further comprises a waste material box, the waste material box is used for collecting waste invalid blades 61, the waste material box is slidably mounted on the tool magazine body 20, the waste material box is located below the partition plate 21 notch 2101, an opening is formed in the bottom of the partition plate 21 notch 2101, the opening is communicated with the waste material box, an inclined plane is formed in the top of the opening, and the blades 61 are prevented from slipping when new blades 61 are installed. After the blade 61 is failed, the carriage 42 is moved to align the slot 4201 with the notch 2101 of the partition 21, the cutter 60 is moved, as shown in fig. 9, the blade 61 is inserted into the slot 4201, the third driver 43 drives the top block 4301 to press the blade 61, the first driver of the trigger unit drives the top rod 50 to move up to abut against the release cantilever 1202 of the rotating part 121 of the knife locking mechanism set screw 12, the blade 61 is unlocked from the cutter 60, the cutter 60 moves up, the failed blade 61 is pulled out under the action of the top block 4301, the top block 4301 is released again, and the blade 61 falls into the waste box from the bottom opening of the notch 2101, and the collection of the failed blade 61 is completed.

The information acquisition unit is an image acquisition unit, the information processing unit is an image processing unit, the light source, the image acquisition unit and the image processing unit are installed on the machine head or the machine tool, the image acquisition unit is connected with the image processing unit, the image processing unit is connected with the control device, the image acquisition unit is used for acquiring fabric incision images, and the image processing unit is used for extracting and analyzing fabric incision shapes.

The image acquisition unit comprises a lens and a camera, the image processing unit comprises an image acquisition card and a visual processor, the camera, the image acquisition card and the visual processor are installed on a machine head or a machine tool, the camera is installed on a cutter 60 of the machine head and is positioned behind the cutting direction of the cutter 60 and can rotate along with the cutter 60, the lens is installed on the camera, the camera is connected with the image acquisition card, the image acquisition card is connected with the visual processor, the visual processor is connected with a control device, the image acquisition card controls cut images of cut fabrics collected by the camera and then transmits the image information to the visual processor, the visual processor extracts cut parameters and compares the cut parameters with standard cut parameters to judge whether the blade 61 fails, if the blade 61 fails, the failure information of the blade 61 is transmitted to the control device, the control device controls the machine to shut down for cutter changing, the blade 61 is found in time through machine vision, waste materials can be avoided, resources are saved, cost is reduced, manual monitoring is not needed, labor resources are saved, and a foundation is laid for unmanned cutter changing.

The control device is a motion controller which takes a microprocessor such as a singlechip and the like as a control core and is used for controlling the first driver, the second driver 41 and the third driver 43 to work, and the first driver, the second driver 41 and the third driver 43 can select an electric linear module or a starting linear module.

As shown in fig. 10, the specific working flow of this embodiment is as follows;

an information acquisition unit of the detection device acquires working parameters of the blade 61, sends the acquired working parameters of the blade 61 to an information processing unit, the information processing unit compares the working parameters with standard working parameters, judges whether the blade 61 fails or not, judges that the blade 61 fails and sends failure information to the control device.

The second driver 41 drives the carriage 42 to move to align the knife slot 4201 with the notch 2101 of the partition 21.

The control device receives the failure information of the blade 61, controls the cutting machine to stop cutting, and transfers the cutter 60 to a specified position. The tool magazine body 20 of the embodiment is positioned at the edge of the beam of the machine tool, the control device controls the machine head to transfer the tool 60 to the edge of the beam, so that the blade 61 is positioned above the tool feeding mechanism tool groove 4201, the release cantilever 1202 of the tool locking mechanism is positioned above the ejector rod 50, and then the tool 60 is controlled to move downwards, and the bottom of the blade 61 enters the tool groove 4201.

The third driver 43 is controlled to push the jack block 4301 against the blade 61.

The first driver is controlled to drive the ejector rod 50 to move upwards, the ejector rod 50 is located below the cantilever and aligned with the middle section of the loosening cantilever 1202, the cutter 60 moves downwards, the ejector rod 50 abuts against the loosening cantilever 1202 to generate a rotating moment, so that the set screw 12 rotates to loosen, the blade 61 is unlocked, the loosening cantilever 1202 is located above after the blade 61 is completely unlocked, the locking cantilever 1201 rotates to the lower side, and the ejector rod 50 resets.

The cutter 60 is controlled to move up, and since the insert 61 is unlocked and clamped, the insert 61 is removed from the holder 11.

Third drive 43 is commanded to release blade 61 and blade 61 drops from the bottom opening of slot 2101 in shelf 21 into the waste cartridge.

The second driver 41 is controlled to drive the carriage 42 to move, so that the tool slot 4201 is aligned with the tool outlet 35 of the magazine body 31, the blade 61 in the magazine body 31 is pressed into the tool slot 4201 under the action of the spring 33, and the second driver 41 is controlled to move the blade 61 out of the preset tool position, namely, when the tool 60 is aligned with the new blade 61, the locking cantilever of the fastening screw rotating part is just aligned with the position of the mandril 50.

When the cutter 60 is controlled to move and the cutter 60 is aligned with the new blade 61, the locking cantilever of the rotating part 121 of the set screw 12 is just aligned with the mandril 50, the cutter 60 is moved downwards, and the new blade 61 is installed in the cutter seat 11.

And controlling the first driver to drive the ejector rod 50 to move upwards, wherein the ejector rod 50 abuts against the locking cantilever 1201 to generate a rotating moment, so that the set screw 12 rotates to lock the blade 61, the ejector rod 50 resets, and the installation of a new blade 61 is completed.

Example 2

On the basis of embodiment 1, the partition 21 is provided with a second notch 2101b, for the sake of distinction, in embodiment 1, the bottom of the partition is provided with a first notch 2101a for unloading the blade 61, and the second notch is the second notch 2101b for abutting against the new blade 61 when loading the new blade 61, and it is necessary that the third driver 43 is provided with two ejector blocks 4301 for clamping the new blade when loading the blade and abutting against the blade when unloading the blade, respectively.

Example 3

On the basis of embodiment 1, the two ejector rods 50 can be arranged, and are respectively a first ejector rod and a second ejector rod, the first ejector rod is driven by a first driver, the second ejector rod is driven by a fourth driver, the first ejector rod is located below the locking cantilever 1201, the second ejector rod is located below the releasing cantilever 1202 and respectively responsible for locking and releasing the blade 61, and the two ejector rods can be arranged on the tool magazine body 20 and located on two sides of the ejector block 4301, and the position of the rotating part 121 of the set screw 12 can be adjusted by rotating the tool 60.

Example 4

The tail of the set screw 12 extends outward to the outside of the housing of the cutter 60, and is provided with a rotating portion at the tail end, the rotating portion being an external gear, the external gear being disposed coaxially with the set screw 12.

The trigger unit is located on the tool magazine body 20, and is used for triggering the rotating part of the set screw 12 to rotate. In this embodiment, the trigger unit is a vertically disposed rack, and the gear of the rotating portion of the set screw 12 is adapted to the rack of the trigger unit.

Example 5

The trigger unit is located on the tool magazine body 20, and the trigger unit is used for triggering the rotation part of the set screw 12 to rotate, the rotation part of the trigger unit is a cantilever or a gear which is symmetrically arranged, and the trigger unit is a mandril 50 which is vertically arranged or a rack which is vertically arranged.

Through control tool bit downstream, make the trigger unit contact of tool magazine or conflict the rotation portion of holding screw 12, and trigger the rotation portion and rotate, rotation portion drives holding screw 12 and rotates, unblock cutter 60, make blade 61 deviate from and change, after changing blade 61, still through moving down cutter 60, trigger unit triggers the rotation portion and rotates, make holding screw 12 top tight blade 61, accomplish the installation of new blade 61, realize quick unblock and the locking of blade 61, the action that utilizes cutter 60 to move down makes trigger unit and the relative motion that the rotation produced come unblock and locking blade 61, can omit trigger unit's drive structure, the simplified structure, and cost is reduced.

Example 6

As shown in fig. 11, the tool magazine assembly further includes a tool taking mechanism, the tool magazine mechanism 30 includes a tool magazine body 31, a tool dragging plate 32 and a spring 33, the tool magazine body 31 is connected to the tool magazine body 20 in a clamping manner, a cavity for the stacked blades 61 to give way is arranged inside the tool magazine body 31, a tool feeding port is arranged at the top of the right end of the tool magazine body 31, the tool feeding port can just accommodate one blade 61 to vertically enter the tool magazine body, a tool discharging port 35 is arranged at the bottom of the right end of the tool magazine body 31, the size of the tool discharging port 35 is the same as that of the tool feeding port, the tool dragging plate 32 is slidably connected inside the cavity of the tool magazine body 31, and the spring 33 is connected between the tool magazine body 31 and the tool dragging plate 32.

The cutter taking mechanism comprises a push cutter rod 72 and a fifth driver 71, the push cutter rod 72 and the fifth driver 71 are located above a cutter inlet of the cutter box body 31, the feed cutter rod 721 is in a long plate shape, the width and the thickness of the feed cutter rod are the same as those of the blades 61, but the length of the feed cutter rod is longer, a sliding groove is formed in the cutter box body 20, the push cutter is installed in the sliding groove, after the rightmost blade is pushed out from top to bottom by the push cutter rod 72, the push cutter rod 72 occupies the position of the original rightmost cutter, other blades cannot move rightwards to block the push cutter rod 72 from returning, the fifth driver 71 is connected between the push cutter rod 72 and the cutter box body 20, the fifth driver 71 is used for driving the push cutter rod 72 to move downwards, and the fifth driver can adopt a linear moving module to drive the push cutter rod 72 to move linearly.

The tool feeding mechanism comprises a sixth driver 81, a rotating arm 82 and a clamp 84, wherein the rotating arm 82 is rotatably connected to the tool magazine body 20, the sixth driver 81 is connected to a rotating shaft of the rotating arm 82 and used for driving the rotating arm 82 to rotate, the clamp 84 is connected to the rotating arm 82 and used for clamping the blade 61, a rack of the trigger unit is arranged on the rotating arm 82, the tool magazine body 20 is further provided with the tool feeding mechanism used for feeding the blade 61 into the clamp 84, the tool magazine assembly further comprises a seventh driver 83, and the seventh driver 83 is connected between the rotating arm 82 and the clamp 84 and used for driving the clamp 84 to clamp the blade 61. The sixth driver 81 and the seventh driver 83 may be servo motors.

When the blade fails, the cutter 60 is driven to move upwards, the rotating arm 82 of the cutter feeding mechanism gives way, the sixth driver 81 is controlled to rotate, the clamp 84 on the rotating arm 82 is positioned below the blade 61 of the cutter 60, the rack of the trigger unit is positioned in the gear circumscribe direction of the rotating part of the set screw 12, then the cutter 60 is driven to move downwards, in the process of moving downwards, on one hand, the external gear of the rotating part of the set screw 12 is meshed with the rack, the rotating part rotates, the set screw 12 rotates to loosen the blade 61, on the other hand, the blade 61 of the cutter 60 falls into the clamp 84, and the seventh driver 83 is controlled to clamp the failed blade. Then the cutter 60 is driven to move upwards, the failed blade is pulled out of the cutter head of the cutter 60, the seventh driver 83 is driven to rotate the rotating arm 82, the rotating arm 82 rotates in the cutter base, the clamp 84 is loosened, the failed blade enters the waste cutter box, then the cutter taking mechanism is driven to send the new blade into the clamp 84, the clamp 84 clamps the blade, the rotating arm 82 is rotated to send the new blade to the lower part of the cutter head, then the cutter 60 is controlled to move downwards, the blade 61 is inserted into the cutter base 11, the clamp 84 is loosened, the blade rises along with the cutter base 11 under the action of the pre-tightening force of the cutter base 11, the rotating part rotates reversely under the driving of the rack, the locking screw tightly pushes the blade, the rotating arm 82 is retracted, and the replacement of the new blade is completed.

Example 7

The rotating part of the cutter locking screw is a clutch driven disc, the touch unit comprises a fourth driving device and a clutch driving disc, the fourth driving unit is connected to the tool magazine body 20, and the clutch driving disc is connected to an output shaft of the fourth driving unit. The fourth drive unit is a servo motor, and the clutch may be a friction clutch or a dog clutch, and the servo motor is rotated forward and backward to unlock and release the blade 61 after the clutch is engaged.

Example 8

The information acquisition unit is a torque sensor, the information processing unit is a torque processor, the torque sensor is connected to the motor of the cutter 60 and used for measuring the output torque of the motor in real time, and the torque processor is connected with the torque sensor and used for receiving and processing torque information.

In other embodiments, the control device is a motion controller with an application specific chip (ASIC) as a core processor, or an open motion controller based on a PC bus with a DSP or FPGA as a core processor

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the description of the embodiments of the present application are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Although the above embodiments have been described herein, the scope of the present invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.

Claims

1. A cutting bed tool changing system is characterized in that: comprises a tool changing device, a detection device and a control device;

2. The cutting bed tool changing system according to claim 1, wherein: the rotating part of the holding screw is an outer cantilever, the outer cantilever is perpendicular to the axial direction of the rotating shaft of the holding screw, the outer cantilevers are symmetrically arranged, and the rotating part of the holding screw is positioned outside the cutting bed cutter.

3. A cutting bed tool changing system according to claim 2, wherein: the trigger unit further comprises a first driver and an ejector rod, the first driver is arranged on the cutter feeding mechanism, the ejector rod is connected to the cutter feeding mechanism or the tool magazine body in a sliding mode, the first driver is connected with the ejector rod, and the first driver is used for driving the ejector rod to move up and down.

4. The cutting bed tool changing system of claim 1, wherein: the knife box mechanism comprises a knife box body, a knife dragging plate and a spring, the knife box body is connected to the knife magazine body, a cavity for avoiding stacked blades is formed in the knife box body, a knife outlet is formed in the knife box body, the knife dragging plate is connected to the inside of the cavity of the knife box body in a sliding mode, and the spring is connected between the knife box body and the knife dragging plate;

the tool conveying mechanism comprises a second driver and a dragging plate, the dragging plate is connected to the tool magazine body in a sliding mode, a partition plate is arranged on the tool magazine body, the dragging plate and the partition plate are attached to each other, a tool groove is formed in one side face, close to the partition plate, of the dragging plate, the second driver is installed on the tool magazine body and connected with the dragging plate and used for driving the dragging plate to slide, and a tool outlet of the tool magazine body is abutted to the dragging plate.

5. The cutting bed tool changing system according to claim 4, wherein: the cutter feeding mechanism further comprises a third driver and a top block, the third driver is installed on the cutter base body, a notch is formed in the partition plate, the top block is located in the notch of the partition plate, the top block is connected to the output end of the third driver, and the top block is used for tightly pushing the blades.

6. The cutting bed tool changing system of claim 5, wherein: the tool magazine assembly further comprises a waste material box, the waste material box is mounted on the tool magazine body and located below the groove opening of the partition plate, and an opening is formed in the bottom of the groove opening of the partition plate.

7. The cutting bed tool changing system of claim 1, wherein: the fabric cutting device comprises an information acquisition unit, an information processing unit, a light source, an image acquisition unit and a control device, wherein the information acquisition unit is an image acquisition unit, the information processing unit is an image processing unit, the light source, the image acquisition unit and the image processing unit are arranged on a machine head or a machine tool, the image acquisition unit is connected with the image processing unit, the image processing unit is connected with the control device, the image acquisition unit is used for acquiring fabric cut images, and the image processing unit is used for extracting and analyzing fabric cut shapes.

8. The cutting bed tool changing system according to claim 1, wherein: the information acquisition unit is a torque sensor, the information processing unit is a torque processor, the torque sensor is connected to a motor of the cutter and used for measuring the output torque of the motor in real time, and the torque processor is connected with the torque sensor and used for receiving and processing torque information.

9. The cutting bed tool changing system according to claim 1, wherein: the control device is a single chip microcomputer or a plc controller.

10. A control method of a cutting bed tool changing system is characterized in that: comprising the cutting bed tool changing system of any one of claims 1-9, comprising the steps of;

step 4, the control device controls the cutter feeding mechanism to move the blade into the tool magazine assembly;