CN116922935A - Automatic positioning screen printing equipment for DBC copper-clad substrate - Google Patents

Abstract

The invention relates to the technical field of semiconductors, in particular to automatic positioning screen printing equipment for a DBC copper-clad substrate, which is not applicable to the automatic positioning screen printing equipment for the DBC copper-clad substrate in the prior art or on the market at present and comprises an operation table, wherein a screen printing device is arranged at the rear side of the upper end of the operation table and comprises a supporting box fixedly connected with the operation table, a rotatable cylindrical cam is arranged in the supporting box, a crystal suction plate is arranged at the front end of the cylindrical cam, and the cylindrical cam can form a structure that the crystal suction plate intermittently moves up and down and intermittently swings when rotating; the right side of the upper end of the operating table is provided with a carrier base capable of moving back and forth, the upper end of the carrier base is provided with a carrier bracket capable of moving left and right, and the upper end of the carrier bracket is provided with a carrier plate; replaces manual installation, saves human resources and forms automatic production.

Description

Automatic positioning screen printing equipment for DBC copper-clad substrate

Technical Field

The invention relates to the technical field of semiconductors, in particular to automatic positioning screen printing equipment for a DBC copper-clad substrate.

Background

The DBC copper-clad substrate has the characteristics of high heat conduction, high electrical insulation, high mechanical strength, low expansion and the like, has high conductivity and excellent welding performance of oxygen-free copper, can be etched into various patterns like a PCB (printed circuit board), and is widely applied to the fields of IGBT power devices, semiconductor thermoelectric refrigeration chips and aerospace; the DBC copper-clad substrate screen printing means that N crystal grains are transferred to corresponding substrate P crystal grains to form PN junctions; because the crystal grains are smaller, the manual butt joint installation is difficult, and a large amount of manpower resources are also lost, so that no device capable of automatically positioning and screen printing on the DBC copper-clad substrate exists in the market or in the prior art at present; for this purpose, a DBC copper-clad substrate automatic positioning screen printing device is designed to solve the above-mentioned problems.

Disclosure of Invention

Aiming at the situation that no device capable of adapting to automatic positioning screen printing of a DBC copper-clad substrate exists in the market or the prior art at present, the invention provides the automatic positioning screen printing device of the DBC copper-clad substrate, which replaces manual installation, saves manpower resources, forms automatic production and effectively solves the problems mentioned in the background art.

The technical scheme adopted by the invention for solving the problems is as follows:

the automatic positioning screen printing equipment for the DBC copper-clad substrate comprises an operation table, wherein a screen printing device is arranged at the rear side of the upper end of the operation table, the screen printing device comprises a supporting box fixedly connected with the operation table, a rotatable cylindrical cam is arranged in the supporting box, a crystal suction plate is arranged at the front end of the cylindrical cam, and the cylindrical cam can form a structure that the crystal suction plate intermittently moves up and down and intermittently swings when rotating; the right side of the upper end of the operating platform is provided with a carrier base capable of moving back and forth, the upper end of the carrier base is provided with a carrier bracket capable of moving left and right, and the upper end of the carrier bracket is provided with a carrier plate.

The upper end surface rigid coupling of supporting box has first motor, and the cylinder cam rigid coupling is at first motor output, and cylinder cam surface front end meshing has first slide pin, and the inner wall of supporting box front end both sides is the rigid coupling respectively has the curb plate, and two curb plate inner walls sliding connection have a diaphragm, first slide pin rigid coupling is on the diaphragm, inhale brilliant board and install at the diaphragm lower extreme.

The inner wall of the middle part of the transverse plate is rotationally connected with a main shaft, the upper end of the outer surface of the main shaft is fixedly connected with an extension arm, the crystal suction plate is arranged on the extension arm, the middle part of the outer surface of the main shaft is slidably connected with a transmission cylinder, a driving plate is fixedly connected on the outer surface of the transmission cylinder, the lower end of a cylindrical cam is coaxially fixedly connected with a driving spur gear, one side of the outer surface of the driving spur gear is meshed with a driven spur gear, the lower ends of the driving spur gear and the driven spur gear are coaxially fixedly connected with driving pulleys respectively, the front ends of the driving pulleys are respectively connected with driven pulleys, the lower ends of the driven pulleys are coaxially fixedly connected with driving rods matched with the driving plate respectively, and the lower ends of the driving rods are coaxially fixedly connected with fan-shaped locking plates meshed with the driving plate respectively.

The inner wall of the top end of the supporting box is fixedly connected with a limiting cylinder, the inner wall of the limiting cylinder is slidably connected with a long shaft which is rotationally connected with the main shaft, the upper end of the outer surface of the long shaft is fixedly connected with a limiting rod, the other end of the limiting rod is hinged with a limiting arm which is parallel to the extension arm, and the crystal suction plate is hinged to the other ends of the limiting arm and the extension arm.

The right side of the upper end surface of the operating platform is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a long threaded rod, the carrier base is slidably connected with the upper end surface of the operating platform, the carrier base is further in threaded connection with the outer surface of the long threaded rod, the inner wall of the carrier base is rotationally connected with a short threaded rod, the carrier bracket is slidably connected with the carrier base, and the lower end surface of the carrier bracket is fixedly connected with a threaded seat in threaded connection with the short threaded rod.

The inner walls at the front end and the rear end of the positioning box are respectively and slidably connected with positioning pins, and locking holes matched with the positioning pins are respectively formed in the inner walls at the two sides of the positioning holes; the left side and the right side of the carrier bracket are respectively provided with a movable control board, and the control boards can form a structure that the positioning pin moves inwards and then the positioning box moves downwards when moving.

The inner side end surfaces of the locating pins are fixedly connected with tension spring pads respectively, second tension springs matched with the tension spring pads are sleeved on the outer surfaces of the locating pins respectively, first connecting rods are hinged to the inner side end surfaces of the tension spring pads respectively, two first connecting inner side ends are hinged to a middle connecting rod which is in sliding connection with the locating box, second movable pins are fixedly connected to the inner walls of the lower ends of the middle connecting rods, first movable pins are fixedly connected to the lower ends of the locating boxes, first guide grooves matched with the first movable pins are formed in the inner walls of the upper ends of the control boards, and second guide grooves matched with the second movable pins are formed in the inner walls of the lower ends of the control boards.

The inner wall of the front end of the operating platform is provided with a charging frame capable of intermittently moving downwards, the inner wall of the charging frame is provided with a plurality of groups of material supporting components, each group of material supporting components comprises four material blocking seats which are positioned on the same horizontal plane and fixedly connected to the inner wall of the charging frame, the inner walls of the material blocking seats are respectively and slidably connected with material blocking wedges, and two sides of the inner wall of the bottom end of each material blocking seat are respectively and fixedly connected with first springs matched with the material blocking wedges.

The charging frame is connected to the inner wall of the front end of the operating platform in a sliding way, square sliding blocks are respectively connected to the left side and the right side of the upper end and the lower end of the inner wall of the middle part of the charging frame in a sliding way, a first threaded rod is fixedly connected to the inner walls of the two square sliding blocks, two hollow cylinders sleeved on the outer surfaces of the corresponding first threaded rods are rotationally connected to the inner walls of the front end of the operating platform, incomplete threaded cylinders matched with the first threaded rods are fixedly connected to the inner walls of the hollow cylinders respectively, two pawls which are symmetrical in center are hinged to the non-center parts of the surfaces of the upper ends of the hollow cylinders respectively, double-sided gears are rotationally connected to the upper ends of the outer surfaces of the central cylinders respectively, ratchet wheels meshed with the pawls are respectively arranged on the inner sides of the double-sided gears, and straight racks matched with the corresponding double-sided gears are fixedly connected to the left end and the right end of the carrier base respectively; the inner side end surfaces of the square sliding blocks are fixedly connected with neutral springs respectively, the upper ends of the outer surfaces of the two first threaded rods are hinged with short connecting rods respectively, and the inner side ends of the two short connecting rods are hinged with a handle.

The upper side and the lower side of the front end surface of the control plate are fixedly connected with first connecting rods respectively, the front end surfaces of the four first connecting rods are fixedly connected with a first clutch plate, and the lower side of the front end of the charging frame is provided with a baffle plate matched with the first clutch plate; the upper side and the lower side of the surface of the rear end of the control board are fixedly connected with second connecting rods respectively, the rear end surfaces of the four second connecting rods are fixedly connected with a second clutch plate, the rear side of the surface of the upper end of the operating platform is fixedly connected with a discharging platform matched with the second clutch plate, and long springs matched with the control board are sleeved on the outer surfaces of the second connecting rods respectively.

Compared with the prior art, the invention has the advantages of novel and ingenious structure:

when the first motor is started to drive the cylindrical cam to rotate, the corresponding crystal sucking plate and the electric sucking disc intermittently move up and down and intermittently swing left and right, when the crystal sucking plate and the electric sucking disc swing leftwards to a designated position, namely the upper end position of the corresponding N crystal grain carrier plate, the cylindrical cam continuously rotates to drive the crystal sucking plate and the electric sucking disc to move downwards, when the electric sucking disc moves downwards to the upper end position of the corresponding N crystal grain, the electric sucking disc continuously adsorbs and fixes the N crystal grains, at the moment, the cylindrical cam continuously rotates to drive the crystal sucking plate, the electric sucking disc and the N crystal grains to move upwards, so that the N crystal grains are separated from the inner wall of the crystal grain groove, when the cylindrical cam moves downwards to the top position, the cylindrical cam continuously rotates to drive the corresponding crystal sucking plate, the electric sucking disc and the N crystal grains to swing rightwards, namely the cylindrical cam moves to the P crystal grain substrate, at the moment, and when the cylindrical cam moves to the designated position, the electric sucking disc stops working, the N crystal grains are continuously rotated to drive the crystal sucking plate, the electric sucking disc is moved leftwards, and the circular swing upwards, and the silk-screen printing is completed; the left side and the right side of the front end surface of the supporting box are fixedly connected with visual sensors respectively, the visual sensors can monitor the N crystal grain plates and the P crystal grain substrates, so that the missing printing or the multiple printing is prevented, and the visual sensors are of the prior art and are not repeated; through the movable carrier, after the N crystal grains are fed, the N crystal grain plate can be driven to move, the next N crystal grains are moved to the designated position, namely, the electric sucking disc is used for taking materials again, through the movable carrier base and the carrier bracket, the P crystal grain substrate can be controlled to move, when the corresponding P crystal grains are fed, the next P crystal grains reach the designated position, namely, the electric sucking disc is used for discharging materials again, and the electric sucking disc, the visual sensor, each motor and the electric sucking disc are mutually matched and controlled to work through the PLC; thus, the screen printing work is completed, manual installation is replaced, human resources are saved, and automatic production is formed.

Drawings

Fig. 1 is an isometric view I of an automatic positioning screen printing device for a DBC copper-clad substrate according to the present invention.

Fig. 2 is an isometric view II of an automatic positioning screen printing device for a DBC copper-clad substrate according to the present invention.

Fig. 3 is a schematic diagram of the mounting of a supporting box of the automatic positioning screen printing device for the DBC copper-clad substrate.

Fig. 4 is a cross-sectional view of a supporting box of the automatic positioning screen printing device for the DBC copper-clad substrate.

Fig. 5 is a schematic diagram of a cross plate installation of an automatic positioning screen printing device for a DBC copper-clad substrate.

Fig. 6 is a schematic diagram of a cylindrical cam structure of an automatic positioning screen printing device for a DBC copper-clad substrate.

Fig. 7 is an installation schematic diagram of an extension arm of an automatic positioning screen printing device for a DBC copper-clad substrate according to the present invention.

Fig. 8 is a schematic diagram of the loading frame installation of the automatic positioning screen printing device for the DBC copper-clad substrate.

Fig. 9 is a schematic view of mounting a straight rack of an automatic positioning screen printing device for a DBC copper-clad substrate.

Fig. 10 is a schematic view of a first threaded rod installation of an automatic positioning screen printing device for a DBC copper-clad substrate.

Fig. 11 is a cross-sectional view of a material blocking seat of an automatic positioning screen printing device for a DBC copper-clad substrate.

Fig. 12 is a sectional view of a loading frame of an automatic positioning screen printing device for a DBC copper clad substrate according to the present invention.

Fig. 13 is a schematic diagram of a double-sided gear installation of an automatic positioning screen printing device for a DBC copper-clad substrate according to the present invention.

Fig. 14 is a cross-sectional view of a carrier holder of an automatic positioning screen printing apparatus for a DBC copper clad substrate according to the present invention.

Fig. 15 is a schematic diagram of the installation of a positioning box of the automatic positioning screen printing device for the DBC copper-clad substrate.

Fig. 16 is a schematic diagram of a first clutch plate installation of an automatic positioning screen printing device for a DBC copper-clad substrate according to the present invention.

Fig. 17 is a schematic diagram of the control board installation of the automatic positioning screen printing device for the DBC copper-clad substrate.

Fig. 18 is a schematic diagram of a control board structure of an automatic positioning screen printing device for a DBC copper-clad substrate according to the present invention.

Fig. 19 is a sectional view of a positioning box of an automatic positioning screen printing device for a DBC copper-clad substrate.

FIG. 20 is a schematic diagram of an N-crystal grain plate structure of an automatic positioning screen printing device for a DBC copper-clad substrate.

Reference numerals in the drawings: 1-operation table, 2-supporting box, 3-first motor, 4-cylindrical cam, 5-traverse plate, 6-side plate, 7-bottom plate, 8-first slide pin, 9-driving spur gear, 10-driven spur gear, 11-driving pulley, 13-driven pulley, 14-deflector rod, 15-fan-shaped lock plate, 16-dial, 17-driving cylinder, 18-main shaft, 19-extension arm, 20-suction plate, 21-suction cup, 22-limit arm, 23-limit rod, 24-long shaft, 25-limit cylinder, 26-second motor, 27-long threaded rod, 28-carrier base, 29-long threaded cylinder, 30-short threaded rod, 31-threaded seat, 32-carrier bracket, 33-discharge table 34-charging rack, 35-blocking seat, 36-first spring, 37-blocking wedge, 38-first threaded rod, 39-square slide, 40-neutral spring, 41-handle, 42-short link, 43-double-sided gear, 44-pawl, 45-spring leaf, 46-hollow cylinder, 47-incomplete thread cylinder, 48-straight rack, 49-carrier plate, 50-positioning box, 51-tip cone, 52-positioning pin, 53-second tension spring, 54-tension spring pad, 55-first link, 56-medium link, 57-first guide rod, 58-second spring, 59-first movable pin, 60-second movable pin, 61-control plate, 62-first guide slot, 63-second guide slot, 64-driving roller, 65-first connecting rod, 66-first clutch plate, 67-long spring, 68-second connecting rod, 69-second clutch plate, 70-baffle, 71-visual sensor, 72-moving carrier, 73-N crystal grain plate, 74-grain groove, 75-N crystal grain, 76-P crystal grain substrate, 77-P crystal grain and 78-spring bracket.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-20, the invention provides automatic positioning screen printing equipment for a DBC copper-clad substrate, which comprises an operation table 1, wherein a screen printing device is arranged at the rear side of the upper end of the operation table 1, the screen printing device comprises a support box 2 fixedly connected with the operation table 1, a rotatable cylindrical cam 4 is arranged in the support box 2, a crystal suction plate 20 is arranged at the front end of the cylindrical cam 4, and the cylindrical cam 4 can form a structure that the crystal suction plate 20 intermittently moves up and down and intermittently swings when rotating; the right side of the upper end of the operation table 1 is provided with a carrier base 28 capable of moving back and forth, the upper end of the carrier base 28 is provided with a carrier bracket 32 capable of moving left and right, and the upper end of the carrier bracket 32 is provided with a carrier plate 49.

As shown in fig. 1-8 and 20, a plurality of supporting legs are fixedly connected to the bottom of the operation table 1, and the operation table 1 and the supporting legs support and fix the whole equipment, so that the equipment can work stably; the left side of the upper end of the operating platform 1 is provided with a movable carrier 72, the movable carrier 72 can move back and forth or left and right in multiple degrees of freedom through a motor and a ball screw, the movable carrier 72 is of the prior art, the description is omitted, an N crystal grain 75 carrier plate is placed at the upper end of the movable carrier 72, as shown in fig. 20, a crystal grain groove 74 is formed in an N crystal grain 75 plate 73, and N crystal grains 75 are placed in the crystal grain groove 74; a plurality of P crystal grains 77 are placed on the carrier plate 49, a plurality of P crystal grains 77 are loaded on the P crystal grains 77, an electric sucking disc 21 capable of sucking and fixing N crystal grains 75 is arranged at the lower end of the crystal sucking plate 20, and the electric sucking disc 21 is of the prior art and is not repeated; when the cylindrical cam 4 rotates, the corresponding crystal sucking plate 20 and the electric sucking disc 21 can be driven to intermittently move up and down and intermittently swing left and right, when the crystal sucking plate 20 and the electric sucking disc 21 swing leftwards to the appointed position, namely the upper end position of the corresponding N crystal grain 75 carrier plate, the cylindrical cam 4 continuously rotates to drive the crystal sucking plate 20 and the electric sucking disc 21 to downwardly move, when the electric sucking disc 21 moves downwards to the upper end position of the corresponding N crystal grain 75, the electric sucking disc 21 is fixedly adsorbed on the N crystal grain 75, at the moment, the continuous rotation of the cylindrical cam 4 drives the crystal sucking plate 20, the electric sucking disc 21 and the N crystal grain 75 to upwardly move, so that the N crystal grain 75 is separated from the inner wall of the crystal grain groove 74, when the cylindrical cam 4 continuously rotates to the top end position, the corresponding crystal sucking plate 20, the electric sucking disc 21 and the N crystal grain 75 are driven to swing rightwards, namely the P crystal grain 77 is moved to the substrate 76, at the moment, the continuous rotation of the cylindrical cam 4 drives the corresponding electric sucking disc 21 and the N crystal grain 75 to downwardly move, and when the electric sucking disc 21 is moved to the appointed position, the corresponding P crystal grain 75 is placed on the corresponding crystal grain groove 75, and the corresponding P crystal grain groove is continuously rotated upwards, and the crystal grain groove is repeatedly rotated upwards, and the crystal grain groove is rotated; the left side and the right side of the front end surface of the supporting box 2 are fixedly connected with visual sensors 71 respectively, the visual sensors 71 can monitor an N crystal grain 75 plate 73 and a P crystal grain 77 base plate 76 to prevent missing printing or multiple printing, and the visual sensors 71 are of the prior art and are not repeated; after the feeding of the N crystal grains 75 is finished through the arranged movable carrier 72, the plate 73 of the N crystal grains 75 can be driven to move, so that the next N crystal grains 75 can move to a specified position, namely, the electric sucking disc 21 is realized to take materials again, the movable carrier base 28 and the carrier bracket 32 are arranged, the movement of the P crystal grain 77 base plate 76 can be controlled, when the feeding of the corresponding P crystal grains 77 is finished, the next P crystal grains 77 can reach the specified position, namely, the electric sucking disc 21 is realized to discharge again, and the electric sucking disc 21 and the electric sensor 71 and each motor are mutually matched and controlled to work through the PLC; thus, the screen printing work is completed, manual installation is replaced, human resources are saved, and automatic production is formed.

The upper end surface rigid coupling of supporting box 2 has first motor 3, and cylinder cam 4 rigid coupling is at first motor 3 output, and cylinder cam 4 surface front end meshing has first slide pin 8, and the inner wall of supporting box 2 front end both sides rigid coupling has curb plate 6 respectively, and two curb plate 6 inner wall sliding connection has a diaphragm 5, first slide pin 8 rigid coupling is on diaphragm 5, inhale brilliant board 20 and install at diaphragm 5 lower extreme.

As shown in fig. 3-6, the first motor 3 is used for providing a rotating force for the cylindrical cam 4, the motor is in the prior art, and is not described in detail, the transverse plate 5 can be connected to the inner wall of the side plate 6 in an up-down sliding manner, and the first sliding pin 8 can only move up-down through the transverse plate 5; the installation and the shape of the cylindrical cam 4 are shown in fig. 6, the outer surface of the cylindrical cam 4 is provided with a circular groove and a V-shaped groove, and the V-shaped groove consists of a flat groove and two inclined grooves; when the circular groove is meshed with the first sliding pin 8, the height of the corresponding first sliding pin 8 is in a fixed state, and cannot be changed, namely the first sliding pin 8 stays at the designated height for a period of time, when the first sliding pin 8 is meshed with the chute of the V-shaped groove, the first sliding pin 8 is driven to move upwards or downwards, and when the first sliding pin 8 is meshed with the flat groove section of the V-shaped groove, the first sliding pin 8 is stopped at the designated height for a short period of time; therefore, when the cylindrical cam 4 rotates, through the engagement with the first sliding pin 8, when the circular groove is engaged with the first sliding pin 8, the first sliding pin 8 can be driven to stay at a designated height for a period of time, namely, a working space is provided for the left-right swing of the crystal suction plate 20, when the cylindrical cam 4 rotates to be engaged with the chute of the V-shaped groove, the corresponding first sliding pin 8 and the crystal suction plate 20 are driven to move downwards, when the cylindrical cam 4 rotates to be engaged with the flat groove section of the V-shaped groove, the first sliding pin 8 and the crystal suction plate 20 are stopped for a short time again, at the moment, the crystal suction plate 20 works to absorb or put down crystal grains, when the cylindrical cam 4 rotates to be engaged with the other chute section of the V-shaped groove, the first sliding pin 8 and the crystal suction plate 20 are moved upwards to reset, and the first sliding pin 8 enters the circular groove again, and circulation is repeated.

The inner wall of the middle part of the transverse plate 5 is rotationally connected with a main shaft 18, the upper end of the outer surface of the main shaft 18 is fixedly connected with an extension arm 19, the crystal suction plate 20 is arranged on the extension arm 19, the middle part of the outer surface of the main shaft 18 is slidably connected with a transmission cylinder 17, a driving plate 16 is fixedly connected on the outer surface of the transmission cylinder 17, the lower end of the cylindrical cam 4 is coaxially fixedly connected with a driving spur gear 9, one side of the outer surface of the driving spur gear 9 is meshed with a driven spur gear 10, the lower ends of the driving spur gear 9 and the driven spur gear 10 are coaxially fixedly connected with a driving belt wheel 11 respectively, the front ends of the driving belt wheels 11 are respectively provided with a driven belt wheel 13, the lower ends of the driven belt wheels 13 are coaxially fixedly connected with a deflector rod 14 matched with the driving plate 16 respectively, and the lower ends of the deflector rod 14 are coaxially fixedly connected with a sector lock plate 15 meshed with the driving plate 16 respectively.

As shown in fig. 4-7, the inner wall of the lower end of the supporting box 2 is fixedly connected with a bottom plate 7, a transmission cylinder 17 is rotationally connected with the inner wall of the bottom plate 7, the transmission cylinder 17 and a main shaft 18 are in spline connection, when the transmission cylinder 17 rotates, the main shaft 18 can be driven to rotate, and the main shaft 18 can slide up and down on the inner wall of the transmission cylinder 17; the driving plate 16, the driving rod 14 and the fan-shaped lock plate 15 are arranged and shaped as shown in fig. 7, the driving rod 14 and the fan-shaped lock plate 15 are arranged at the left side and the right side of the driving plate 16, a rotating shaft is fixedly connected at the centers of the driving rod 14, the fan-shaped lock plate 15 and the driven belt pulley 13, and the rotating shaft is rotatably connected with the inner wall of the bottom plate 7; the centers of the driving spur gear 9 and the corresponding driving belt pulley 11 are fixedly connected with a rotating shaft, the rotating shaft is rotatably connected to the inner wall of the supporting box 2, and as shown in fig. 6, the driving spur gear 9, the driven spur gear 10, the driving belt pulley 11 and the driven belt pulley 13 are arranged to drive the two deflector rods 14 to reversely and synchronously rotate; when the two shifting levers 14 rotate reversely and synchronously, the shifting levers 16 can be driven to intermittently rotate back and forth for 90 degrees through the cooperation with the shifting plate 16, and then the shifting plate 16 can have a self-locking function when the shifting plate 16 is stopped briefly after being intermittently rotated for 90 degrees through the engagement of the sector lock plate 15 and the shifting plate 16; therefore, when the cylindrical cam 4 rotates, the transverse plate 5 can be driven to move up and down intermittently, when the transverse plate 5 moves up and down intermittently, the corresponding spindle 18, the extension arm 19 and the crystal sucking plate 20 can be driven to move up and down intermittently, when the cylindrical cam 4 rotates, the two deflector rods 14 can be driven to rotate through the driving spur gear 9, the driven spur gear 10, the driving pulley 11 and the driven pulley 13, when the two deflector rods 14 rotate, the corresponding deflector rods 16 and the transmission cylinder 17 can be driven to intermittently reciprocate by 90 degrees through the cooperation with the deflector rods 16, when the transmission cylinder 17 rotates, the corresponding spindle 18 is driven to rotate, the extension arm 19 swings, namely the crystal sucking plate 20 swings up and down, when the transmission cylinder 17 rotates, the corresponding spindle 18, the extension arm 19 swings up and down intermittently, the crystal sucking plate 20 is driven to intermittently stop when the crystal sucking plate 20 swings to the top, when the crystal sucking plate 20 swings down to the bottom, the crystal sucking plate 20 stops moving downwards for a small period of time, the corresponding sucking disc 21 is fixed at the lower end of the sucking disc 21, the crystal sucking plate 20 is fixed at the lower end of the crystal sucking plate 20, and then the crystal grains are intermittently moved upwards again, namely the crystal sucking plate 20 is intermittently moves upwards, and then the crystal grains are intermittently moved upwards again, and the crystal sucking plate 20 is intermittently moves to the crystal plate is intermittently and then is intermittently moved to the crystal sucking plate 20 to the top end is repeatedly, and the crystal grains is intermittently and the crystal sucking plate is placed to the crystal plate 20 is repeatedly.

The inner wall of the top end of the supporting box 2 is fixedly connected with a limiting cylinder 25, the inner wall of the limiting cylinder 25 is slidably connected with a long shaft 24 which is rotationally connected with the main shaft 18, the upper end of the outer surface of the long shaft 24 is fixedly connected with a limiting rod 23, the other end of the limiting rod 23 is hinged with a limiting arm 22 which is parallel to the extension arm 19, and the crystal suction plate 20 is hinged with the other ends of the limiting arm 22 and the extension arm 19.

As shown in fig. 4-7, the long shaft 24 is connected to the inner wall of the limit cylinder 25 in a vertically sliding manner, the limit cylinder 25 is in spline connection with the long shaft 24, when the main shaft 18 rotates, the long shaft 24 and the limit rod 23 can be prevented from rotating by limiting the long shaft 24 through the limit cylinder 25, and when the main shaft 18 moves up and down, the long shaft 24 and the limit rod 23 can be driven to move up and down, which is not repeated; the extension arm 19, the limit arm 22, the limit rod 23 and the crystal suction plate 20 are installed and shaped as shown in fig. 7, and are equivalent to mutually hinged and indirectly formed into a parallelogram mechanism, and the crystal suction plate 20 can be driven to always keep parallel to the limit rod 23 and turn left or right when the extension arm 19 swings by fixing one side of the limit rod 23, so that the corresponding suction disc 21 always keeps parallel to the limit rod 23 after absorbing crystal grains, the crystal grains are prevented from turning, and dislocation phenomenon is prevented when the crystal grains are fetched and placed.

The right side of the upper end surface of the operation table 1 is fixedly connected with a second motor 26, the output end of the second motor 26 is fixedly connected with a long threaded rod 27, the carrier base 28 is slidably connected to the upper end surface of the operation table 1, the carrier base 28 is further in threaded connection with the outer surface of the long threaded rod 27, the inner wall of the carrier base 28 is rotatably connected with a short threaded rod 30, the carrier bracket 32 is slidably connected to the carrier base 28, and the lower end surface of the carrier bracket 32 is fixedly connected with a threaded seat 31 in threaded connection with the short threaded rod 30.

As shown in fig. 8-9, the second motor 26 is used for providing a rotating force for the long threaded rod 27, the front end of the outer surface of the long threaded rod 27 is rotatably connected with a bearing seat, the bottom end of the bearing seat is fixedly connected to the upper end surface of the operating platform 1, and the limiting long threaded rod 27 can only rotate; the inner wall of the carrier base 28 is fixedly connected with a long thread cylinder 29, the long thread cylinder 29 is in threaded connection with the outer surface of the long threaded rod 27, which is equivalent to the threaded connection of the carrier base 28 on the outer surface of the long threaded rod 27, and the carrier base 28 can be in front-back sliding connection with the upper end surface of the operating platform 1; the motor is fixedly connected to the short threaded rod 30, and can provide a rotating force for the short threaded rod 30, and the carrier bracket 32 can be connected to the upper end surface of the carrier base 28 in a left-right sliding manner; when the first motor 3 is started, the long threaded rod 27 can be driven to rotate, the long threaded rod 27 can drive the corresponding carrier base 28, carrier bracket 32 and carrier plate 49 to move back and forth, and when the short threaded rod 30 rotates, the screw base 31, carrier bracket 32 and carrier plate 49 can be driven to move left and right through the screw connection with the screw base 31, so that the carrier plate 49 can be controlled to move back and forth or move left and right.

The inner walls at two ends of the carrier bracket 32 are respectively provided with a locking device, the locking device comprises a positioning box 50 which is in sliding connection with the inner wall of the carrier bracket 32, the surfaces at the left end and the right end of the carrier plate 49 are respectively provided with positioning holes matched with the corresponding positioning box 50, the inner walls at the front end and the rear end of the positioning box 50 are respectively in sliding connection with a positioning pin 52, and the inner walls at two sides of the positioning holes are respectively provided with locking holes matched with the positioning pins 52; the left and right sides of the carrier bracket 32 are respectively provided with a movable control board 61, and the control board 61 can form a structure that the positioning pin 52 moves inwards and then the positioning box 50 moves downwards when moving.

14-15 and 19, the positioning box 50 can be connected to the inner wall of the carrier base 28 in an up-down sliding manner, and as shown in FIG. 15, the shape of the positioning hole is corresponding to that of the positioning box 50, so that when the positioning box 50 is inserted into the positioning hole, the carrier plate 49 is limited to move back and forth or left and right, a top cone 51 is fixedly connected to the upper end surface of the positioning box 50, and the function of the top cone 51 is to facilitate the positioning box 50 to be smoothly inserted into the positioning hole; the positioning pin 52 and the inner wall of the positioning box 50 slide back and forth, and when the positioning pin 52 pops outwards, the positioning pin is meshed with the lock hole, so that the carrier plate 49 can be limited to move upwards, and accurate silk screen printing is assisted; through locating pin 52, the locating box 50 that set up, can limit carrier plate 49 reciprocates or control and move, through setting up movable control panel 61, can drive locating pin 52 medial movement and can drive the locating box 50 and move down when moving to the top when control panel 61 removes, can control locating box 50, locating pin 52 and carrier plate 49 engaged with or disengage the meshing, be convenient for change new carrier plate 49 and accomplish automatic feeding or unloading work.

The inner side end surfaces of the positioning pins 52 are fixedly connected with tension spring pads 54 respectively, the outer surfaces of the positioning pins 52 are sleeved with second tension springs 53 matched with the tension spring pads 54 respectively, the inner side end surfaces of the tension spring pads 54 are hinged with first connecting rods 55 respectively, the two first connecting inner side ends are hinged with a middle connecting rod 56 which is in sliding connection with the positioning box 50, the inner wall of the lower end of the middle connecting rod 56 is fixedly connected with a second movable pin 60, the lower end of the positioning box 50 is fixedly connected with a first movable pin 59, the inner wall of the upper end of the control plate 61 is provided with a first guide groove 62 matched with the first movable pin 59, and the inner wall of the lower end of the control plate 61 is provided with a second guide groove 63 matched with the second movable pin 60.

As shown in fig. 18-19, the outer end surfaces of the second tension springs 53 are respectively and fixedly connected to the inner wall of the positioning box 50, the inner end surfaces of the second tension springs 53 are respectively and fixedly connected to the corresponding tension spring pads 54, the tension spring pads 54 and the positioning pins 52 can be driven to always have outward driving forces by the self tension force of the second tension springs 53, as shown in fig. 19, the middle connecting rods 56 can be vertically and slidably connected to the inner wall of the positioning box 50, the front side and the rear side of the lower end surface of the positioning box 50 are respectively and fixedly connected with the first guide rods 57, the inner wall of the carrier bracket 32 is fixedly connected with the two spring brackets 78, the first guide rods 57 are respectively and vertically and slidably connected to the inner walls of the corresponding spring brackets 78, the outer surfaces of the first guide rods 57 are respectively sleeved with the second springs 58, and the second springs 58 serve as the driving forces for driving the positioning box 50 in a directional manner; the middle part of the surface of the lower end of the positioning box 50 is fixedly connected with a pin seat, and a first movable pin 59 is fixedly connected to the inner wall of the pin seat, which is equivalent to the fact that the first movable pin 59 is fixedly connected to the lower end of the positioning box 50; the first movable pin 59, the second movable pin 60, the first guide groove 62 and the second guide groove 63 are installed and shaped as shown in fig. 18, the first guide groove 62 is composed of a trapezoid groove and a long flat groove, and the second guide groove 63 is composed of a triangle groove and a long flat groove; the trapezoid groove comprises two sections of short chute and one section of short flat groove, the triangular groove comprises two sections of long chute, the inclination of the short chute is the same as that of the long chute, and the short chute and the long chute are parallel to each other; when the control plate 61 moves backward, the first movable pin 59 and the second movable pin 60 are meshed with the corresponding first guide groove 62 and the corresponding second guide groove 63, so that the positioning box 50 can be enabled to be temporarily stationary for a period of time when the first movable pin 59 is meshed with the short flat groove section, the second movable pin 60 is enabled to move downward when the second movable pin 60 is meshed with the long chute section of the triangular groove, the second movable pin moves downward, the middle connecting rod 56 is driven to move downward when the second movable pin moves downward, the first connecting rod 55 is driven to move downward when the middle connecting rod 56 moves downward, the first connecting rod 55 moves downward, the two positioning and inward moving parts are driven to move inward when the first connecting rod 55 moves downward, when the positioning pin 52 moves inward completely into the inner wall of the positioning box 50, the corresponding control plate 61 moves continuously at the moment, the first movable pin 59 is enabled to enter the short chute section after the first movable pin 59 is meshed with the short flat groove section, the corresponding second movable pin 60 moves downward synchronously, namely the positioning box 50 and the positioning pin 52 moves synchronously when the positioning pin 52 moves downward, and the positioning plate 52 moves downward when the corresponding positioning pin 52 moves downward, and the corresponding positioning plate 60 moves downward, and the positioning plate 52 moves downward completely, and the positioning plate 52 moves downward when the corresponding positioning pin is completely and the positioning plate 52 moves downward, and the positioning plate 52 moves downward and the corresponding plate 52 completely and is completely removed; when the control board 61 moves reversely, the positioning pins 52 and the positioning box 50 can be reset to the initial positions and meshed with the carrier plate 49 again, so that the carrier plate 49 is limited and fixed.

The front end inner wall of the operating platform 1 is provided with a charging frame 34 capable of intermittently moving downwards, the inner wall of the charging frame 34 is provided with a plurality of groups of material supporting components, each group of material supporting components comprises four material blocking seats 35 which are positioned on the same horizontal plane and fixedly connected to the inner wall of the charging frame 34, the inner walls of the material blocking seats 35 are respectively and slidably connected with material blocking wedges 37, and two sides of the inner wall of the bottom end of each material blocking seat 35 are respectively and fixedly connected with first springs 36 matched with the material blocking wedges 37.

As shown in fig. 1 and 10-11, the material supporting components can support the carrier plate 49, and each group of material supporting components is arranged on the same horizontal plane, so that the carrier plate 49 can be supported horizontally; the material blocking seat 35 can be slidably connected to the inner wall of the material blocking wedge 37 left and right, as shown in fig. 11, the first spring 36 always has an inward elasticity for the material blocking wedge 37, two side end surfaces of the material blocking wedge 37 are inclined surfaces, the carrier plates 49 are respectively placed on the corresponding material blocking wedge 37, when the carrier base 28 and the carrier bracket 32 are in no-load condition, i.e. when the carrier plate 49 is not arranged at the upper end of the corresponding carrier bracket 32, the carrier bracket 32 can move forward to be in contact with the material blocking wedge 37 at the bottom end, the material blocking wedge 37 can enter the inner wall of the corresponding material blocking seat 35 under the action of the inclined surface of the material blocking wedge 37, the first spring 36 is compressed, at the moment, when the carrier bracket 32 moves down to the forefront end, the corresponding carrier plate 49 can fall into the upper end position of the carrier bracket 32, and when the carrier bracket 32 continues to move backward, the carrier plate 49 can be driven to move backward, thereby completing the loading of the carrier bracket 32, and when the carrier bracket 32 moves backward, the material blocking wedge 37 is disengaged from the inner side of the material blocking wedge 37, and the first spring 36 is disengaged from the material blocking wedge 37.

The charging frame 34 is slidably connected to the inner wall of the front end of the operation platform 1, the left and right sides of the upper end and the lower end of the inner wall of the middle part of the charging frame 34 are respectively slidably connected with square sliding blocks 39, the inner walls of the two square sliding blocks 39 are fixedly connected with a first threaded rod 38, the inner wall of the front end of the operation platform 1 is rotatably connected with two hollow cylinders 46 sleeved on the outer surface of the corresponding first threaded rod 38, the inner walls of the hollow cylinders 46 are respectively fixedly connected with incomplete thread cylinders 47 matched with the first threaded rod 38, the non-center parts of the upper end surfaces of the hollow cylinders 46 are respectively hinged with two pawls 44 with central symmetry, the upper ends of the outer surfaces of the central cylinders are respectively rotatably connected with double-sided gears 43, the inner sides of the double-sided gears 43 are respectively provided with ratchets meshed with the pawls 44, and the left and right ends of the carrier base 28 are respectively fixedly connected with straight racks 48 matched with the corresponding double-sided gears 43; the inner side end surfaces of the square slide blocks 39 are fixedly connected with neutral springs 40 respectively, the upper ends of the outer surfaces of the two first threaded rods 38 are hinged with short connecting rods 42 respectively, and the inner side ends of the two short connecting rods 42 are hinged with a handle 41.

As shown in fig. 8-13, the carrier base 28 and the straight rack 48 can be connected on the upper end surface of the operation table 1 in a front-back sliding manner; the square slide block 39 can be connected to the inner wall of the charging frame 34 in a left-right sliding way, and the charging frame 34 can be connected to the inner wall of the front end of the operating platform 1 in an up-down sliding way; the inner ends of the neutral springs 40 are fixedly connected to the inner wall of the charging rack 34 respectively, and the neutral springs 40 can enable the square sliding block 39 to be at a designated position in a normal state, namely the first threaded rod 38 is at the designated position; the pawl 44, the double-sided gear 43, the hollow cylinder 46 and the incomplete thread cylinder 47 are installed and shaped as shown in fig. 13, the inner end surfaces of the pawl 44 are respectively fixedly connected with a spring piece 45, the inner ends of the spring pieces 45 are respectively fixedly connected with the upper end surface of the hollow cylinder 46, and the spring pieces 45 are used for limiting the pawl 44 to be always meshed with the ratchet teeth; the first threaded rod 38 and the incomplete thread cylinder 47 can be always engaged under the elastic force of the neutral spring 40, and the height of the charging stand 34 can be stably locked when the incomplete thread cylinder 47 is engaged with the first threaded rod 38 as shown in fig. 12; when the carrier base 28, the carrier bracket 32 and the straight rack 48 are fed when moving from back to front, the carrier base 28 and the carrier bracket 32 are moved to the bottom end position of the charging frame 34, at the moment, the straight rack 48 meets the double-sided gear 43 and drives the double-sided gear 43 to rotate forward, the double-sided rack does not drive the pawl 44 and the hollow cylinder 46 to rotate under the meshing of the pawl 44, when the straight rack 48 moves from back to front, only drives the double-sided gear 43 to rotate and does not drive the double-sided hollow cylinder 46 to rotate, after the carrier bracket 32 is fed, namely, when the straight rack 48 moves forwards and backwards, the double-sided gear 43 is driven to rotate reversely, the corresponding pawl 44 drives the hollow cylinder 46 to rotate under the meshing of the ratchet, the hollow cylinder 46 drives the incomplete thread cylinder 47 to rotate, and drives the first threaded rod 38 and the charging frame 34 to move downwards when the incomplete thread cylinder 47 rotates through the meshing of the first threaded rod 38, so that the corresponding carrier plate 49 moves downwards to a designated position, and the corresponding carrier plate 49 always rotates the two threaded cylinders 47 and the complete thread cylinders 47 are not fully meshed with the first threaded cylinder 47 and the complete thread cylinder 47 through the double-sided gear 43; the short connecting rods 42, the handles 41 and the first threaded rods 38 are installed and shaped as shown in fig. 12, when the handles 41 move upwards, the corresponding two short connecting rods 42 are driven to move inwards or outwards, when the charging rack 34 is required to reset, the handles 41 are driven to move upwards, when the handles 41 move upwards, the corresponding first threaded rods 38 can be driven to move outwards through the two short connecting rods 42, the corresponding neutral springs 40 are lengthened, when the first threaded rods 38 move outwards, the first threaded rods 38 are disengaged from the corresponding incomplete thread barrels 47, and when the incomplete thread barrels 47 are disengaged from the first threaded rods 38, the corresponding charging rack 34 can move upwards to reset to the initial position.

The upper side and the lower side of the front end surface of the control plate 61 are fixedly connected with first connecting rods 65 respectively, the front end surfaces of the four first connecting rods 65 are fixedly connected with a first clutch plate 66, and the lower side of the front end of the charging frame 34 is provided with a baffle 70 matched with the first clutch plate 66; the upper and lower both sides of control panel 61 rear end surface respectively rigid coupling have second connecting rod 68, and four second connecting rod 68 rear end surface rigid coupling have a second clutch plate 69, the operation panel 1 upper end surface rear side rigid coupling has the platform 33 of unloading that cooperates with second clutch plate 69, and the cover is gone up in second connecting rod 68 surface and is had long spring 67 that cooperates with control panel 61 respectively.

As shown in fig. 8, 10 and 16-18, the control board 61 is slidably connected to the inner walls of the left and right ends of the carrier bracket 32, the first connecting rod 65, the second connecting rod 68, the first clutch plate 66, the second clutch plate 69 and the long spring 67 are installed and shaped as shown in fig. 17, the spring seats are fixedly connected to the rear sides of the inner end surfaces of the carrier bracket 32 respectively, one ends of the long springs 67 are fixedly connected to the spring seats respectively, the other ends of the long springs 67 are fixedly connected to the control board 61 respectively, and the long springs 67 play a role of resetting the control board 61 to be at a designated position; the inner wall of the carrier bracket 32 is provided with a plurality of rotatable rotating rollers, and the driving roller 64 is driven by a motor; when the carrier plate 49 needs to be unloaded, the carrier base 28 and the carrier bracket 32 are driven to move backwards, namely, the corresponding control plate 61, the first connecting rod 65, the second connecting rod 68, the long spring 67, the first separation plate 66 and the second separation plate 69 synchronously move backwards, when the second separation plate 69 is in a backward state to meet the unloading platform 33, the second separation plate 69 is not moved backwards under the blocking of the unloading platform 33 after continuing to move backwards, namely, the corresponding control plate 61 is not moved backwards any more, the corresponding carrier bracket 32 and the like continuously move backwards at the moment and then move forwards relative to the control plate 61, when the control plate 61 moves forwards, the corresponding positioning box 50 and the positioning pin 52 are separated from the carrier plate 49 through the engagement of the first movable pin 59, the second movable pin 60 and the corresponding first guide groove 62 and the second guide groove 63, and the corresponding positioning box 50 can be moved onto the unloading platform 33 after starting the motor to rotate the driving roller 64, so that the carrier plate 49 is moved onto the unloading platform 33, and the unloading is completed, and when the carrier base 28 and the carrier bracket 32 move forwards and the carrier bracket 32 reset, the long spring 53, the second spring 58 and the second spring 58 can move to the initial positioning pin 50 and the positioning pin 52; when the carrier base 28 and the carrier holder 32 move forward for loading, the corresponding first clutch plates 66 contact the baffle 70, when the carrier holder 32 does not completely drive into the bottom of the loading frame 34, the first clutch plates 66 meet the baffle 70, when the carrier holder 32 moves backward to enable the positioning box 50 and the positioning pins 52 to immediately enter the loading frame 34, the corresponding first clutch plates 66 meet the baffle 70, the control plate 61 moves backward relative to the carrier holder 32 under the blocking of the baffle 70, the long springs 67 are compressed, the control plate 61 moves backward through the engagement with the first and second movable pins 59 and 60, the positioning pins 52 and the positioning box 50 move downward into the inner wall of the carrier holder 32, when the carrier holder 32 moves backward continuously, the first and second movable pins 59 and 60 engage with the corresponding long flat grooves, namely, the corresponding positioning boxes 50 and the positioning pins 52 do not move downwards after entering the inner wall of the carrier bracket 32, when the carrier bracket 32 completely enters the inner wall of the charging rack 34, the carrier plate 49 falls into the upper end position of the carrier bracket 32 under the action of gravity, and when the carrier bracket 32 moves backwards and resets, the corresponding long springs 67 are in a compressed state, so when the control plate 61 moves forwards relative to the carrier bracket 32, the first movable pins 59 and the second movable pins 60 move out of the long flat groove sections, and when the first movable pins 59 and the second movable pins 60 move out of the long flat groove sections, the carrier plate 49 enters into the triangular groove sections and the trapezoid groove sections, and then the positioning boxes 50 and the positioning pins 52 move upwards and reset under the self elasticity of the second tension springs 53, the second springs 58 and the long springs 67, namely, the carrier plate 49 is fixed again, and the details are omitted; the provision of the baffle 70 also prevents rearward movement of the carrier plate 49 as the carrier brackets 32 move rearward for loading, but also blocks the bottommost carrier plate 49 on the loading bay 34.

When the invention is used, when the first motor 3 is started to drive the cylindrical cam 4 to rotate, the corresponding crystal sucking plate 20 and the electric sucking disc 21 can be driven to intermittently move up and down and intermittently swing left and right, when the crystal sucking plate 20 and the electric sucking disc 21 swing leftwards to the appointed position, namely the upper end position of the corresponding N crystal grain 75 carrier plate, the cylindrical cam 4 continuously rotates to drive the crystal sucking plate 20 and the electric sucking disc 21 to move downwards, when the electric sucking disc 21 moves downwards to the upper end position of the corresponding N crystal grain 75, the electric sucking disc 21 continuously adsorbs and fixes the N crystal grain 75, at the moment, the cylindrical cam 4 continuously rotates to drive the crystal sucking plate 20, the electric sucking disc 21 and the N crystal grain 75 to move upwards, so that the N crystal grain 75 is separated from the inner wall of the crystal grain groove 74, when the cylindrical cam 4 continuously rotates to the appointed position, namely the cylindrical cam 21 and the N crystal grain 75 are continuously rotated rightwards, namely the cylindrical cam 4 continuously rotates to the P crystal grain 77 carrier plate 76, the corresponding electric sucking disc 21 and the N crystal grain 75 are continuously rotated downwards, and the crystal grain 75 is continuously rotated leftwards when the electric sucking disc 21 stops to rotate to the appointed position, and the crystal grain groove 75 is continuously rotated upwards, and the crystal grain groove is repeatedly rotated upwards, and the crystal grain groove is completely printed; the left side and the right side of the front end surface of the supporting box 2 are fixedly connected with visual sensors 71 respectively, the visual sensors 71 can monitor an N crystal grain 75 plate 73 and a P crystal grain 77 base plate 76 to prevent missing printing or multiple printing, and the visual sensors 71 are of the prior art and are not repeated; after the feeding of the N crystal grains 75 is finished through the arranged movable carrier 72, the plate 73 of the N crystal grains 75 can be driven to move, so that the next N crystal grains 75 can move to a specified position, namely, the electric sucking disc 21 is realized to take materials again, the movable carrier base 28 and the carrier bracket 32 are arranged, the movement of the P crystal grain 77 base plate 76 can be controlled, when the feeding of the corresponding P crystal grains 77 is finished, the next P crystal grains 77 can reach the specified position, namely, the electric sucking disc 21 is realized to discharge again, and the electric sucking disc 21 and the electric sensor 71 and each motor are mutually matched and controlled to work through the PLC; thus, the screen printing work is completed, manual installation is replaced, human resources are saved, and automatic production is formed.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The utility model provides a DBC covers copper base plate automatic positioning silk screen printing equipment, includes operation panel (1), its characterized in that: the rear side of the upper end of the operating table (1) is provided with a screen printing device, the screen printing device comprises a supporting box (2) fixedly connected with the operating table (1), a rotatable cylindrical cam (4) is arranged in the supporting box (2), the front end of the cylindrical cam (4) is provided with a crystal suction plate (20), and the cylindrical cam (4) can form a structure that the crystal suction plate (20) intermittently moves up and down and intermittently swings when rotating; the right side of the upper end of the operating platform (1) is provided with a carrier base (28) capable of moving forwards and backwards, the upper end of the carrier base (28) is provided with a carrier bracket (32) capable of moving left and right, and the upper end of the carrier bracket (32) is provided with a carrier plate (49).

2. The automatic positioning screen printing device for a DBC copper-clad substrate as recited in claim 1, wherein: the utility model discloses a crystal grain suction device, including supporting box (2), cylinder cam (4), cross slab (5) are installed to supporting box (2) upper end surface rigid coupling has first motor (3), cylinder cam (4) rigid coupling at first motor (3) output, cylinder cam (4) outer surface front end meshing has first slide pin (8), and supporting box (2) front end both sides inner wall rigid coupling has curb plate (6) respectively, and two curb plate (6) inner wall sliding connection have a diaphragm (5), first slide pin (8) rigid coupling is on diaphragm (5), install at diaphragm (5) lower extreme crystal grain suction plate (20).

3. The automatic positioning screen printing device for the DBC copper-clad substrate as recited in claim 2, wherein: the crystal pulling device is characterized in that a main shaft (18) is rotationally connected to the inner wall of the middle of the transverse plate (5), an extension arm (19) is fixedly connected to the upper end of the outer surface of the main shaft (18), a crystal pulling plate (20) is mounted on the extension arm (19), a transmission barrel (17) is slidably connected to the middle of the outer surface of the main shaft (18), a driving plate (16) is fixedly connected to the outer surface of the transmission barrel (17), a driving spur gear (9) is coaxially fixedly connected to the lower end of the cylindrical cam (4), a driven spur gear (10) is meshed to one side of the outer surface of the driving spur gear (9), driving pulleys (11) are coaxially fixedly connected to the lower ends of the driving spur gear (9) and the driven spur gear (10), driven pulleys (13) are connected to front ends of the driving pulleys (11), driving rods (14) matched with the driving plates (16) are coaxially fixedly connected to the lower ends of the driven pulleys (13), and fan-shaped lock plates (15) meshed with the driving plates (16) are coaxially fixedly connected to the lower ends of the driving rods (14).

4. A DBC copper clad substrate automatic positioning screen printing device according to claim 3, wherein: a limiting cylinder (25) is fixedly connected to the inner wall of the top end of the supporting box (2), a long shaft (24) which is rotationally connected with the main shaft (18) is slidably connected to the inner wall of the limiting cylinder (25), a limiting rod (23) is fixedly connected to the upper end of the outer surface of the long shaft (24), the other end of the limiting rod (23) is hinged with a limiting arm (22) parallel to the extension arm (19), and the crystal suction plate (20) is hinged with the other ends of the limiting arm (22) and the extension arm (19).

5. The automatic positioning screen printing device for a DBC copper-clad substrate as recited in claim 1, wherein: the right side of the upper end surface of the operating platform (1) is fixedly connected with a second motor (26), the output end of the second motor (26) is fixedly connected with a long threaded rod (27), the carrier base (28) is slidably connected on the upper end surface of the operating platform (1), the carrier base (28) is further in threaded connection on the outer surface of the long threaded rod (27), the inner wall of the carrier base (28) is rotationally connected with a short threaded rod (30), the carrier bracket (32) is slidably connected to the carrier base (28), and a thread seat (31) in threaded connection with the short threaded rod (30) is fixedly connected to the lower end surface of the carrier bracket (32).

6. The automatic positioning screen printing device for a DBC copper-clad substrate as recited in claim 1, wherein: the inner walls at the two ends of the carrier bracket (32) are respectively provided with a locking device, the locking device comprises a positioning box (50) which is in sliding connection with the inner wall of the carrier bracket (32), the surfaces at the left end and the right end of the carrier plate (49) are respectively provided with positioning holes matched with the corresponding positioning boxes (50), the inner walls at the front end and the rear end of the positioning box (50) are respectively in sliding connection with positioning pins (52), and the inner walls at the two sides of the positioning holes are respectively provided with locking holes matched with the positioning pins (52); the left side and the right side of the carrier bracket (32) are respectively provided with a movable control board (61), and the control boards (61) can form a structure that the positioning pin (52) moves inwards and then the positioning box (50) moves downwards when moving.

7. The automatic positioning screen printing device for a DBC copper-clad substrate according to claim 6, wherein: the inner side end faces of the positioning pins (52) are fixedly connected with tension spring pads (54) respectively, second tension springs (53) matched with the tension spring pads (54) are sleeved on the outer surfaces of the positioning pins (52) respectively, first connecting rods (55) are hinged to the inner side end faces of the tension spring pads (54) respectively, two middle connecting rods (56) which are in sliding connection with the positioning boxes (50) are hinged to the inner side ends of the two first connecting rods, second movable pins (60) are fixedly connected to the inner walls of the lower ends of the middle connecting rods (56), first movable pins (59) are fixedly connected to the lower ends of the positioning boxes (50), first guide grooves (62) matched with the first movable pins (59) are formed in the inner walls of the upper ends of the control plates (61), and second guide grooves (63) matched with the second movable pins (60) are formed in the inner walls of the lower ends of the control plates (61).

8. The automatic positioning screen printing device for a DBC copper-clad substrate according to claim 7, wherein: the utility model discloses a material feeding device, including operation panel (1), material feeding frame (34) that can intermittently move down is equipped with to the front end inner wall of operation panel (1), and material feeding frame (34) inner wall is equipped with multiunit and holds in the palm the material subassembly, and every group holds in the palm the material subassembly and all includes four and is in same horizontal plane and the fender material seat (35) of rigid coupling at material feeding frame (34) inner wall, keeps off material seat (35) inner wall and has fender material wedge (37) respectively sliding connection, keeps off material seat (35) bottom inner wall both sides rigid coupling respectively and has first spring (36) with fender material wedge (37) matched with.

9. The automatic positioning screen printing device for the DBC copper-clad substrate as recited in claim 8, wherein: the device is characterized in that the charging frame (34) is slidably connected to the inner wall of the front end of the operating platform (1), square sliding blocks (39) are slidably connected to the left and right sides of the upper end and the lower end of the inner wall of the middle of the charging frame (34), a first threaded rod (38) is fixedly connected to the inner walls of the two square sliding blocks (39), two hollow cylinders (46) sleeved on the outer surfaces of the corresponding first threaded rods (38) are rotatably connected to the inner wall of the front end of the operating platform (1), incomplete threaded cylinders (47) matched with the first threaded rods (38) are fixedly connected to the inner walls of the hollow cylinders (46), two pawls (44) which are symmetrical in center are hinged to the non-center portions of the upper end surfaces of the hollow cylinders (46), double-sided gears (43) are rotatably connected to the upper ends of the outer surfaces of the central cylinders, ratchet wheels meshed with the pawls (44) are respectively arranged on the inner sides of the double-sided gears (43), and straight toothed bars (48) matched with the corresponding double-sided gears (43) are fixedly connected to the left and right ends of the carrier base (28); the inner side end surfaces of the square sliding blocks (39) are fixedly connected with neutral springs (40) respectively, the upper ends of the outer surfaces of the two first threaded rods (38) are hinged with short connecting rods (42) respectively, and the inner side ends of the two short connecting rods (42) are hinged with a handle (41).

10. The automatic positioning screen printing device for the DBC copper-clad substrate as recited in claim 8, wherein: the upper side and the lower side of the front end surface of the control plate (61) are fixedly connected with first connecting rods (65) respectively, the front end surfaces of the four first connecting rods (65) are fixedly connected with a first clutch plate (66), and the lower side of the front end of the charging frame (34) is provided with a baffle plate (70) matched with the first clutch plate (66); the upper and lower both sides of control panel (61) rear end surface are respectively rigid coupling has second connecting rod (68), and four second connecting rod (68) rear end surface rigid couplings have a second clutch plate (69), operation panel (1) upper end surface rear side rigid coupling has and second clutch plate (69) matched with platform (33) of unloading, cover respectively on second connecting rod (68) surface have with control panel (61) matched with long spring (67).