CN115666000A - Automatic precise cutting device and method for large-size printed board - Google Patents
Automatic precise cutting device and method for large-size printed board Download PDFInfo
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- CN115666000A CN115666000A CN202211592649.8A CN202211592649A CN115666000A CN 115666000 A CN115666000 A CN 115666000A CN 202211592649 A CN202211592649 A CN 202211592649A CN 115666000 A CN115666000 A CN 115666000A
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Abstract
The invention discloses an automatic precise cutting device and method for a large-size printed board, and relates to the technical field of cutting of the large-size printed board.A transverse positioning mechanism for transversely positioning the large-size printed board is arranged on a table board of a workbench and below a first portal frame cross beam; a plurality of lead screw nut pairs with saw blades arranged in a staggered mode are arranged below the cross beam of the second portal frame, each lead screw nut pair is arranged on the table surface of the workbench, and a clamping mechanism for clamping a large-size printed board is arranged on the top surface of a nut of each lead screw nut pair; and a cooling device for cooling the cutting surface of the strip-shaped printed board is arranged on the second portal frame. The invention has the beneficial effects that: compact structure, greatly improve jumbo size printed board and open material precision, degree of automation height.
Description
Technical Field
The invention relates to the technical field of cutting of large-size printed boards, in particular to an automatic precise cutting device and method for large-size printed boards.
Background
The electronic component assembly comprises a printed board, a single panel, a double-sided board, a PCB board and the like, wherein the printed board is mainly installed in a controller of the case and plays a role in controlling the action of the corresponding executing mechanism. In the early stage of production of the printed boards, a large-size printed board needs to be cut into a plurality of strip-shaped printed boards with the same specification to finish cutting of the large-size printed board, after cutting, the strip-shaped printed boards are cut into the plurality of printed boards through cutting equipment, and finally the printed boards are processed through a series of procedures, so that the finished printed boards are obtained.
At present, a cutting machine is adopted in a workshop to cut a large-size printed board, the cutting machine comprises a saw blade rotatably installed on a machine table, the upper half part of the saw blade is located above the machine table, the lower half part of the saw blade is located below the machine table, a power motor is arranged below the machine table, the saw blade is fixedly installed on an output shaft of the power motor, when the large-size printed board is to be cut, a worker drives the power motor to rotate the saw blade, then the worker flatly places the large-size printed board on a table board of the machine table, then pushes the large-size printed board to move towards the direction of the saw blade along the table board of the machine table, the saw blade cuts the large-size printed board, and after the large-size printed board completely passes through the saw blade, the strip-shaped printed board can be finally processed.
However, although this cutting machine can cut large-sized printed boards, the technical staff still find the following technical defects:
I. the large-size printed board is warped, so that a large amount of burrs are formed on the cutting surface of the strip-shaped printed board in the cutting process, which undoubtedly reduces the cutting precision of the large-size printed board.
II. After the bar-shaped printed board is cut and molded, the temperature of the cutting surface of the bar-shaped printed board is quite high, and the cutting surface is discolored at high temperature, so that the cutting quality is greatly reduced, the technical defect of low cutting precision exists, in addition, the discolored part needs to be polished at the later stage, and the operation is complex. Therefore, a cutting device and a cutting method for greatly improving the cutting precision of the large-size printed board are needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the automatic precise cutting device and the method for the large-size printed board, which have the advantages of compact structure, greatly improved cutting precision of the large-size printed board and high automation degree.
The purpose of the invention is realized by the following technical scheme: an automatic precise cutting device for large-size printed boards comprises a workbench, a first portal frame and a second portal frame, wherein the first portal frame and the second portal frame are fixedly arranged on the table top of the workbench;
a rotating shaft is rotatably arranged between the front plate and the rear plate of the second portal frame, a plurality of saw blades arranged at intervals are arranged on the rotating shaft, a power mechanism is fixedly arranged on the rear side plate of the second portal frame and is connected with the rotating shaft, a plurality of lead screw nut pairs in staggered arrangement with the saw blades are arranged below a cross beam of the second portal frame, each lead screw nut pair is arranged on the table surface of the workbench, and a clamping mechanism for clamping a large-size printed board is arranged on the top surface of a nut of each lead screw nut pair; a cooling device for cooling the cutting surface of the strip-shaped printed board is arranged on the second portal frame;
the cooling device comprises a coolant storage tank, an air blower and an air outlet pipe, wherein the coolant storage tank and the air blower are fixedly arranged on the second portal frame beam, the air outlet pipe is longitudinally arranged below the beam, one end opening of the air outlet pipe is sealed, the other end of the air outlet pipe is provided with an opening, the air outlet of the air blower is connected with a pipeline penetrating through the coolant storage tank, the extending port of the pipeline is connected with the opening of the air outlet pipe, a plurality of branch pipes corresponding to the lead screw nut pair up and down are fixedly arranged on the bottom surface of the air outlet pipe along the length direction of the branch pipe, a rectangular pipe is horizontally arranged at the bottom of each branch pipe, the rectangular pipe is communicated with branch pipes, each rectangular pipe is oppositely arranged with the saw blade left side and the right side respectively, and a plurality of air outlet holes are formed in the front side wall and the rear side wall of the rectangular pipe.
The transverse positioning mechanism comprises a vertical plate fixedly arranged on the table top of the workbench and a transverse cylinder fixedly arranged on the left end face of the vertical plate, and a push plate is fixedly arranged on the action end of a piston rod of the transverse cylinder.
Two longitudinal positioning mechanism longitudinal symmetry sets up around, and the longitudinal positioning mechanism that is located the rear side is including setting firmly the longitudinal cylinder on first portal frame posterior lateral plate, and the piston rod of longitudinal cylinder runs through the posterior lateral plate setting of first portal frame forward, and extends to serve and set firmly the diaphragm, follows its length direction rotatory a plurality of movable wheels of installing on the preceding terminal surface of diaphragm.
The leveling mechanism comprises a leveling cylinder fixedly arranged on the top surface of the cross beam of the first portal frame, a piston rod of the leveling cylinder penetrates through the cross beam, and a pressing plate positioned right above the roller conveying mechanism is fixedly arranged on the extending end.
The cross section of the rectangular pipe is square or rectangular.
The power mechanism comprises a speed reducer and a motor which are fixedly arranged on the rear side plate of the second portal frame, an output shaft of the motor is connected with an input shaft of the speed reducer, and an output shaft of the speed reducer is connected with the rotating shaft.
The clamping mechanism comprises a base fixedly arranged on the top surface of the nut, channel steel with an opening facing left is welded on the top surface of the base, a pressing oil cylinder is fixedly arranged on the top surface of the channel steel, and a pressing head extending into the channel steel is fixedly arranged on the action end of a piston rod of the pressing oil cylinder.
The cutting device further comprises a controller, and the controller is electrically connected with an electromagnetic valve of the pressing oil cylinder, the leveling air cylinder, the transverse air cylinder, the longitudinal air cylinder, the motor, the air blower and the screw-nut pair through signal wires.
An automatic precise cutting method for a large-size printed board comprises the following steps:
s1, positioning a large-size printed board, wherein the specific operation steps are as follows:
s11, a worker flatly places a large-size printed board to be cut on the top surface of a roller of the roller conveying mechanism, and the large-size printed board is just positioned in an area defined by the transverse positioning mechanism and the two longitudinal positioning mechanisms;
s12, a worker controls piston rods of longitudinal cylinders of the two longitudinal positioning mechanisms to extend out, the piston rods drive the transverse plates to move towards the direction of the large-size printed board, the transverse plates drive the movable wheels to move towards the direction of the large-size printed board, and when the piston rods of the two longitudinal cylinders completely extend out, the large-size printed board is pressed between the two movable wheels;
s13, a worker controls a piston rod of a transverse cylinder of the transverse positioning mechanism to extend out, the piston rod drives a push plate to move rightwards, the push plate pushes a large-size printed board to move rightwards, and after the piston rod of the transverse cylinder extends out completely, the push plate is just abutted against the left end face of the large-size printed board, so that the large-size printed board is positioned;
s2, leveling a large-size printed board, wherein a worker controls a piston rod of a leveling cylinder to extend downwards, the piston rod drives a pressing plate to move downwards, the pressing plate presses the large-size printed board onto a roller of a roller conveying mechanism, and when the piston rod of the leveling cylinder extends completely, the arched large-size printed board can be leveled;
s3, clamping a large-size printed board, wherein the specific operation steps are as follows:
s31, a worker controls a driving motor of each feed screw nut pair to rotate forward, a nut of each feed screw nut pair moves leftwards along a feed screw, the nut drives a clamping mechanism to move leftwards, when the nut moves to a left limit position, a channel steel of the clamping mechanism is just clamped on the right end portion of the large-size printed board, and a pressure head of the clamping mechanism is located on the top surface of the right end portion of the large-size printed board;
s32, a worker controls a piston rod of the pressing oil cylinder to move downwards, the piston rod drives a pressure head to move downwards, and the pressure head presses the right end part of the large-size printed board on a bottom plate of the channel steel, so that the large-size printed board is clamped;
s4, cutting the large-size printed board, wherein the specific operation steps are as follows:
s41, a worker controls the blower to start, the blower sends airflow into the pipeline, the airflow exchanges heat with a refrigerant in the coolant storage tank, the refrigerant transmits cold energy to the pipeline, the pipeline transmits the cold energy to the airflow, and the cold airflow sequentially passes through the pipeline, the air outlet pipe, the branch pipe and the rectangular pipe and is finally sprayed out of the air outlet hole;
s42, a worker controls the motor to start, the torque of the motor is reduced by the reducer and then drives the rotating shaft to rotate, and the rotating shaft drives each saw blade to synchronously rotate;
s43, a worker controls a driving motor of each screw-nut pair to rotate reversely, nuts of the screw-nut pairs move rightwards along a screw rod, the nuts drive a clamping mechanism to move rightwards, the clamping mechanism drives a large-size printed board to move rightwards, a saw blade gradually cuts the large-size printed board in the process of moving rightwards to obtain a strip-shaped printed board, and when the strip-shaped printed board enters a cooling station of a cooling device, namely when a cutting surface of the strip-shaped printed board faces a rectangular pipe, cold air flow sprayed out of an air outlet of the rectangular pipe blows the cutting surface of the strip-shaped printed board, so that the cutting surface is cooled in real time;
and S44, when the feed screw nut pair moves to the right limit position, cutting a large-size printed board into a plurality of strip-shaped printed boards.
The invention has the following advantages: compact structure, greatly improve jumbo size printed board and open material precision, degree of automation height.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a front view of a rectangular tube;
FIG. 5 is a schematic main section view of FIG. 4;
FIG. 6 is a schematic view of the connection of the clamping mechanism to the nut;
fig. 7 is a schematic view of positioning a large-sized printed board;
FIG. 8 is a cross-sectional view C-C of FIG. 7;
fig. 9 is a schematic view of holding a large-sized printed board;
FIG. 10 is a cross-sectional view D-D of FIG. 9;
FIG. 11 is an enlarged view of a portion I of FIG. 9;
fig. 12 is a schematic view of cutting a large-sized printed board;
FIG. 13 is a cross-sectional view E-E of FIG. 12;
FIG. 14 is a cross-sectional view F-F of FIG. 12;
in the figure, 1-workbench, 2-first portal frame, 3-second portal frame, 4-roller conveying mechanism, 5-transverse positioning mechanism, 6-longitudinal positioning mechanism, 7-leveling mechanism, 8-rotating shaft, 9-saw blade, 10-screw-nut pair, 11-nut, 12-clamping mechanism, 13-coolant storage tank, 14-blower, 15-air outlet pipe, 16-pipeline, 17-branch pipe, 18-rectangular pipe, 19-air outlet hole, 20-transverse cylinder, 21-push plate, 22-longitudinal cylinder, 23-transverse plate, 24-movable wheel, 25-leveling cylinder, 26-press plate, 27-reducer, 28-channel steel, 29-pressing cylinder, 30-press head, 31-large-size printed board and 32-strip-shaped printed board.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
as shown in fig. 1 to 6, an automatic precise cutting device for large-size printed boards includes a workbench 1, a first portal frame 2 and a second portal frame 3 fixedly arranged on a table top of the workbench 1, a roller conveying mechanism 4 is arranged on the table top of the workbench 1, a transverse positioning mechanism 5 for transversely positioning large-size printed boards is arranged on the table top of the workbench 1 and below a cross beam of the first portal frame 2, the transverse positioning mechanism 5 is arranged on the left side of the roller conveying mechanism 4, longitudinal positioning mechanisms 6 for longitudinally positioning large-size printed boards are arranged on front and rear vertical plates of the first portal frame 2, the two longitudinal positioning mechanisms 6 are respectively arranged on front and rear sides of the roller conveying mechanism 4, a leveling mechanism 7 for leveling the large-size printed boards to be flattened is arranged on the cross beam of the first portal frame 2, the leveling mechanism 7 is arranged right above the roller conveying mechanism 4, the portal frame 3 includes a speed reducer 27 and a motor fixedly arranged on a rear side plate of the second portal frame 3, an output shaft of the motor is connected with an input shaft of the speed reducer 27, and an output shaft of the speed reducer 27 is connected with a rotating shaft 8. A rotating shaft 8 is rotatably mounted between the front plate and the rear plate of the second portal frame 3, a plurality of saw blades 9 arranged at intervals are mounted on the rotating shaft 8, a power mechanism is fixedly arranged on the rear side plate of the second portal frame 3 and connected with the rotating shaft 8, a plurality of screw nut pairs 10 in staggered arrangement with the saw blades 9 are arranged below a cross beam of the second portal frame 3, each screw nut pair 10 is arranged on the table surface of the workbench 1, and a clamping mechanism 12 for clamping a large-size printed board is arranged on the top surface of a nut 11 of each screw nut pair 10; and a cooling device for cooling the cutting surface of the strip-shaped printed board is arranged on the second portal frame 3.
As shown in fig. 1 to 6, the cooling device includes a coolant storage tank 13 fixedly disposed on the beam of the second portal frame 3, a blower 14, and an air outlet pipe 15 longitudinally disposed below the beam, wherein one end of the air outlet pipe 15 is closed, the other end of the air outlet pipe is provided with an opening, an air outlet of the blower 14 is connected with a pipeline 16 penetrating through the coolant storage tank 13, an extending port of the pipeline 16 is connected with the opening of the air outlet pipe 15, a plurality of branch pipes 17 vertically corresponding to the screw nut pair 10 are fixedly disposed on the bottom surface of the air outlet pipe 15 along the length direction thereof, a rectangular pipe 18 horizontally disposed is fixedly disposed at the bottom of each branch pipe 17, the cross section of the rectangular pipe 18 is square or rectangular, the rectangular pipe 18 is communicated with the branch pipes 17, each rectangular pipe 18 is respectively disposed opposite to the left and right of the saw blade 9, and a plurality of air outlet holes 19 are disposed on the front and rear side walls of the rectangular pipe 18.
The transverse positioning mechanism 5 comprises a vertical plate fixedly arranged on the table surface of the workbench 1 and a transverse cylinder 20 fixedly arranged on the left end surface of the vertical plate, and a push plate 21 is fixedly arranged on the action end of a piston rod of the transverse cylinder 20. Two longitudinal positioning mechanism 6 front and back symmetry set up, and the longitudinal positioning mechanism 6 that is located the rear side is including setting firmly longitudinal cylinder 22 on first portal frame 2 posterior lateral plate, and longitudinal cylinder 22's piston rod runs through the posterior lateral plate setting of first portal frame 2 forward, and extends to serve and set firmly diaphragm 23, and it has a plurality of movable wheels 24 to install along its length direction rotation on the preceding terminal surface of diaphragm 23, leveling mechanism 7 is including setting firmly leveling cylinder 25 on first portal frame 2 crossbeam top surface, and leveling cylinder 25's piston rod runs through the crossbeam setting, and extends to serve and set firmly the clamp plate 26 that is located directly over cylinder conveying mechanism 4.
The clamping mechanism 12 comprises a base fixedly arranged on the top surface of the nut 11, a channel steel 28 with an opening facing left is welded on the top surface of the base, a pressing oil cylinder 29 is fixedly arranged on the top surface of the channel steel 28, and a pressing head 30 extending into the channel steel 28 is fixedly arranged on the action end of a piston rod of the pressing oil cylinder 29. The cutting device also comprises a controller, the controller is electrically connected with the electromagnetic valve of the pressing oil cylinder 29, the leveling air cylinder 25, the transverse air cylinder 20, the longitudinal air cylinder 22, the motor, the air blower 14 and the screw nut pair 10 through signal wires, a worker can control the extension or retraction of piston rods of the pressing oil cylinder 29, the leveling air cylinder 25, the transverse air cylinder 20 and the longitudinal air cylinder 22 through the controller, and meanwhile, the air blower 14 and the motor can be controlled to be started or closed, so that the cutting device is convenient for the operation of the worker and has the characteristic of high automation degree.
An automatic precise cutting method for a large-size printed board comprises the following steps:
s1, positioning a large-size printed board, and specifically comprising the following operation steps:
s11, a worker flatly places the large-size printed board 31 to be cut on the top surface of the roller conveying mechanism 4, and the large-size printed board 31 is just positioned in an area surrounded by the transverse positioning mechanism 5 and the two longitudinal positioning mechanisms 6;
s12, a worker controls piston rods of the longitudinal cylinders 22 of the two longitudinal positioning mechanisms 6 to extend, the piston rods drive the transverse plate 23 to move towards the large-size printed board 31, the transverse plate 23 drives the movable wheels 24 to move towards the large-size printed board 31, and after the piston rods of the two longitudinal cylinders 22 completely extend, the large-size printed board 31 is pressed between the two movable wheels 24;
s13, a worker controls a piston rod of a transverse cylinder 20 of the transverse positioning mechanism 5 to extend out, the piston rod drives a push plate 21 to move rightwards, the push plate 21 pushes a large-size printed board 31 to move rightwards, and after the piston rod of the transverse cylinder 20 extends out completely, the push plate 21 is just abutted against the left end face of the large-size printed board 31, so that the large-size printed board 31 is positioned, as shown in figures 7-8;
s2, leveling the large-size printed board, wherein workers control a piston rod of the leveling cylinder 25 to extend downwards, the piston rod drives the pressing plate 26 to move downwards, the pressing plate 26 presses the large-size printed board 31 onto a roller of the roller conveying mechanism 4, and the arched large-size printed board 31 can be leveled after the piston rod of the leveling cylinder 25 extends completely;
s3, clamping a large-size printed board, wherein the specific operation steps are as follows:
s31, a worker controls a driving motor of each feed screw nut pair 10 to rotate forward, a nut 11 of each feed screw nut pair 10 moves leftwards along a feed screw, the nut 11 drives a clamping mechanism 12 to move leftwards, when the nut 11 moves to a left limit position, a channel steel 28 of the clamping mechanism 12 is just clamped on the right end portion of a large-size printed board 31, and a pressure head 30 of the clamping mechanism 12 is located on the top surface of the right end portion of the large-size printed board 31;
s32, a worker controls a piston rod of the pressing oil cylinder 29 to move downwards, the piston rod drives the pressing head 30 to move downwards, and the pressing head 30 presses the right end portion of the large-size printed board 31 on the bottom plate of the channel steel 28, so that the large-size printed board is clamped, as shown in figures 9-11;
s4, cutting the large-size printed board, wherein the specific operation steps are as follows:
s41, a worker controls the blower 14 to start, the blower 14 sends airflow into the pipeline 16, the airflow exchanges heat with the refrigerant in the coolant storage tank 13, the refrigerant transmits cold energy to the pipeline 16, the pipeline 16 transmits the cold energy to the airflow, the cold airflow sequentially passes through the pipeline 16, the air outlet pipe 15, the branch pipe 17 and the rectangular pipe 18 and is finally sprayed out of the air outlet 19, and the flowing direction of the cold airflow is shown by hollow arrows in the figure 13;
s42, a worker controls the motor to start, the torque of the motor is reduced by the speed reducer 27 to drive the rotating shaft 8 to rotate, and the rotating shaft 8 drives each saw blade 9 to synchronously rotate;
s43, a worker controls the driving motor of each feed screw nut pair 10 to rotate reversely, the nut 11 of each feed screw nut pair 10 moves rightwards along a feed screw, the nut 11 drives the clamping mechanism 12 to move rightwards, when the nut 11 drives the clamping mechanism 12 to move rightwards, the clamping mechanism 12 drives the large-size printed board 31 to move rightwards, and in the process of moving rightwards, the saw blade 9 gradually cuts the large-size printed board 31 to obtain the strip-shaped printed board 32, as shown in figures 12-14, when the strip-shaped printed board 32 enters a cooling station of a cooling device, namely when a cutting surface of the strip-shaped printed board 32 faces the rectangular tube 18, cold air flow sprayed from an air outlet 19 of the rectangular tube 18 blows to the cutting surface of the strip-shaped printed board 32, and therefore the cutting surface is cooled in real time;
in step S4, when the rotating saw blade 9 is cutting the large-size printed board 31, the cut surface of the strip-shaped printed board 32 is cooled by the cold air blown out from the air outlet 19 of the rectangular tube 18, so that the cut surface is immediately cooled, the cut surface is effectively prevented from changing color due to high temperature, and the cutting quality of the large-size printed board is greatly improved.
In addition, in the steps S1-S2, the large-size printed board 31 is positioned through the transverse positioning mechanism 5 and the longitudinal positioning mechanism 6, and then the large-size printed board 31 is leveled through the leveling mechanism 7, so that the arched large-size printed board 31 is in a leveling state.
And S44, when the feed screw nut pair 10 moves to the right limit position, cutting one large-size printed board 31 into a plurality of strip-shaped printed boards 32.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (9)
1. The utility model provides a material device is opened to automatic precision of jumbo size printing board, it includes workstation (1), sets firmly first portal frame (2) and second portal frame (3) on workstation (1) mesa, its characterized in that: a roller conveying mechanism (4) is arranged on the table top of the workbench (1), a transverse positioning mechanism (5) for transversely positioning a large-size printed board is arranged on the table top of the workbench (1) and positioned below a cross beam of the first portal frame (2), the transverse positioning mechanism (5) is arranged on the left side of the roller conveying mechanism (4), longitudinal positioning mechanisms (6) for longitudinally positioning the large-size printed board are arranged on front and rear vertical plates of the first portal frame (2), the two longitudinal positioning mechanisms (6) are respectively arranged on the front and rear sides of the roller conveying mechanism (4), a leveling mechanism (7) for a flattened large-size printed circuit board is arranged on the cross beam of the first portal frame (2), and the leveling mechanism (7) is arranged right above the roller conveying mechanism (4);
a rotating shaft (8) is rotatably mounted between the front plate and the rear plate of the second portal frame (3), a plurality of saw blades (9) arranged at intervals are mounted on the rotating shaft (8), a power mechanism is fixedly arranged on the rear side plate of the second portal frame (3) and connected with the rotating shaft (8), a plurality of screw-nut pairs (10) in staggered arrangement with the saw blades (9) are arranged below the cross beam of the second portal frame (3), each screw-nut pair (10) is arranged on the table surface of the workbench (1), and a clamping mechanism (12) for clamping a large-size printed board is arranged on the top surface of a nut (11) of each screw-nut pair (10); a cooling device for cooling the cutting surface of the strip-shaped printed board is arranged on the second portal frame (3);
the cooling device comprises a coolant storage tank (13) fixedly arranged on a second portal frame (3) beam, an air blower (14) and an air outlet pipe (15) longitudinally arranged below the beam, wherein one end opening of the air outlet pipe (15) is sealed, the other end of the air outlet pipe is provided with an opening, an air outlet of the air blower (14) is connected with a pipeline (16) penetrating through the coolant storage tank (13), an extending port of the pipeline (16) is connected with the opening of the air outlet pipe (15), a plurality of branch pipes (17) vertically corresponding to the screw nut pair (10) are fixedly arranged on the bottom surface of the air outlet pipe (15) along the length direction of the bottom surface of the air outlet pipe, the bottom of each branch pipe (17) is fixedly provided with a rectangular pipe (18) horizontally arranged, the rectangular pipes (18) are communicated with the branch pipes (17), each rectangular pipe (18) is oppositely arranged with the left side and the right side of a saw blade (9) respectively, and a plurality of air outlet holes (19) are formed in the front side wall and back side wall of each rectangular pipe (18).
2. The automatic precise cutting device for the large-size printed board according to claim 1, wherein: the transverse positioning mechanism (5) comprises a vertical plate fixedly arranged on the table top of the workbench (1) and a transverse cylinder (20) fixedly arranged on the left end face of the vertical plate, and a push plate (21) is fixedly arranged on the action end of a piston rod of the transverse cylinder (20).
3. The automatic precise cutting device for the large-size printed board according to claim 2, characterized in that: two longitudinal positioning mechanism (6) front and back symmetry set up, and longitudinal positioning mechanism (6) that are located the rear side are including setting firmly longitudinal cylinder (22) on first portal frame (2) posterior lateral plate, and the piston rod of longitudinal cylinder (22) runs through the posterior lateral plate setting of first portal frame (2) forward, and extends to serve and set firmly diaphragm (23), and follow its length direction rotation on the preceding terminal surface of diaphragm (23) and install a plurality of loose wheels (24).
4. The automatic precise cutting device for the large-size printed board according to claim 3, characterized in that: leveling mechanism (7) are including setting firmly leveling cylinder (25) on first portal frame (2) crossbeam top surface, and the piston rod of leveling cylinder (25) runs through the crossbeam setting, and extends to serve and set firmly clamp plate (26) that are located directly over cylinder conveying mechanism (4).
5. The automatic precise cutting device for the large-size printed board according to claim 4, wherein: the cross section of the rectangular tube (18) is square or rectangular.
6. The automatic precise cutting device for the large-size printed board according to claim 5, wherein: the power mechanism comprises a speed reducer (27) and a motor which are fixedly arranged on the rear side plate of the second portal frame (3), the output shaft of the motor is connected with the input shaft of the speed reducer (27), and the output shaft of the speed reducer (27) is connected with the rotating shaft (8).
7. The automatic precise cutting device for the large-size printed board according to claim 6, wherein: fixture (12) is including setting firmly the base on nut (11) top surface, and the welding has channel-section steel (28) that the opening faces left on the top surface of base, has set firmly on the top surface of channel-section steel (28) and has compressed tightly hydro-cylinder (29), and the effect of compressed tightly hydro-cylinder (29) piston rod is served and is set firmly pressure head (30) that stretch into in channel-section steel (28).
8. The automatic precise cutting device for the large-size printed board according to claim 7, wherein: the cutting device also comprises a controller, wherein the controller is electrically connected with an electromagnetic valve of the pressing oil cylinder (29), a leveling cylinder (25), a transverse cylinder (20), a longitudinal cylinder (22), a motor, an air blower (14) and a screw nut pair (10) through signal wires.
9. An automatic precise cutting method for a large-size printed board, which adopts the automatic precise cutting device for the large-size printed board as claimed in claim 8, and is characterized in that: it comprises the following steps:
s1, positioning a large-size printed board, and specifically comprising the following operation steps:
s11, a worker flatly places a large-size printed board (31) to be cut on the top surface of a roller conveying mechanism (4), and the large-size printed board (31) is just positioned in an area surrounded by a transverse positioning mechanism (5) and two longitudinal positioning mechanisms (6);
s12, a worker controls piston rods of longitudinal cylinders (22) of the two longitudinal positioning mechanisms (6) to extend out, the piston rods drive the transverse plates (23) to move towards the large-size printed board (31), the transverse plates (23) drive the movable wheels (24) to move towards the large-size printed board (31), and after the piston rods of the two longitudinal cylinders (22) extend out completely, the large-size printed board (31) is pressed between the two movable wheels (24);
s13, a worker controls a piston rod of a transverse cylinder (20) of the transverse positioning mechanism (5) to stretch out, the piston rod drives a push plate (21) to move rightwards, the push plate (21) pushes a large-size printed board (31) to move rightwards, and after the piston rod of the transverse cylinder (20) completely stretches out, the push plate (21) is just abutted against the left end face of the large-size printed board (31), so that the large-size printed board (31) is positioned;
s2, leveling a large-size printed board, wherein a worker controls a piston rod of a leveling cylinder (25) to extend downwards, the piston rod drives a pressing plate (26) to move downwards, the pressing plate (26) presses the large-size printed board (31) onto a roller of a roller conveying mechanism (4), and the arched large-size printed board (31) can be leveled after the piston rod of the leveling cylinder (25) extends completely;
s3, clamping a large-size printed board, wherein the specific operation steps are as follows:
s31, a worker controls a driving motor of each feed screw nut pair (10) to rotate forward, a nut (11) of each feed screw nut pair (10) moves leftwards along a feed screw, the nut (11) drives a clamping mechanism (12) to move leftwards, when the nut (11) moves to a left limit position, a channel steel (28) of the clamping mechanism (12) is just clamped on the right end portion of a large-size printed board (31), and a pressure head (30) of the clamping mechanism (12) is located on the top surface of the right end portion of the large-size printed board (31);
s32, a worker controls a piston rod of the pressing oil cylinder (29) to move downwards, the piston rod drives a pressure head (30) to move downwards, and the pressure head (30) presses the right end part of the large-size printed board (31) on a bottom plate of the channel steel (28), so that the large-size printed board is clamped;
s4, cutting the large-size printed board, wherein the specific operation steps are as follows:
s41, a worker controls an air blower (14) to start, the air blower (14) sends air flow into a pipeline (16), the air flow exchanges heat with a refrigerant in a coolant storage tank (13), the refrigerant transfers cold energy to the pipeline (16), the pipeline (16) transfers the cold energy to the air flow, and the cold air flow sequentially passes through the pipeline (16), an air outlet pipe (15), a branch pipe (17) and a rectangular pipe (18) and is finally ejected from an air outlet hole (19);
s42, a worker controls the motor to start, the torque of the motor is reduced by the reducer (27) and then drives the rotating shaft (8) to rotate, and the rotating shaft (8) drives each saw blade (9) to synchronously rotate;
s43, a worker controls a driving motor of each feed screw nut pair (10) to rotate reversely, a nut (11) of each feed screw nut pair (10) moves rightwards along a feed screw, the nut (11) drives a clamping mechanism (12) to move rightwards, when the nut (11) drives the clamping mechanism (12) to move rightwards, the clamping mechanism (12) drives a large-size printed board (31) to move rightwards, a saw blade (9) gradually cuts the large-size printed board (31) in the rightward movement process to obtain a strip-shaped printed board (32), and when the strip-shaped printed board (32) enters a cooling station of a cooling device, namely when a cutting surface of the strip-shaped printed board (32) faces a rectangular pipe (18), cold air flow sprayed out of an air outlet (19) of the rectangular pipe (18) blows to the cutting surface of the strip-shaped printed board (32), so that the cutting surface is cooled in real time;
s44, when the feed screw nut pair (10) moves to the right limit position, a large-size printed board (31) can be cut into a plurality of strip-shaped printed boards (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211592649.8A CN115666000B (en) | 2022-12-13 | 2022-12-13 | Automatic precise cutting device and method for large-size printed board |
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| CN202211592649.8A CN115666000B (en) | 2022-12-13 | 2022-12-13 | Automatic precise cutting device and method for large-size printed board |
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| CN115666000A true CN115666000A (en) | 2023-01-31 |
| CN115666000B CN115666000B (en) | 2023-03-28 |
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| Publication number | Publication date |
|---|---|
| CN115666000B (en) | 2023-03-28 |
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