CN108032514B

CN108032514B - 3D printing equipment

Info

Publication number: CN108032514B
Application number: CN201711441919.4A
Authority: CN
Inventors: 陈瑞姣
Original assignee: Nanning Suicong Fuyu Technology Development Co ltd
Current assignee: Wang Zhongyuan
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2020-10-30
Anticipated expiration: 2037-12-27
Also published as: CN108032514A

Abstract

The utility model provides a 3D printing apparatus, includes the bottom plate, the lower surface of bottom plate and biaxial motor's fuselage fixed connection, the equal fixedly connected with first gear in surface of two output shafts of biaxial motor, and two first gears mesh with two second gears through two chains respectively, and the equal fixed connection of two second gears is on the surface of first pivot. The workpiece clamping mechanism of the device is characterized in that a shaft sleeve is sleeved on a non-threaded smooth cylindrical surface at the end part of a threaded column, a third gear is coaxially fixed on the shaft sleeve, a fourth gear is coaxially fixed on a screw rod, the third gear is meshed with the fourth gear, one end of a connecting rod is connected to a nut, the other end of the connecting rod is connected to a second connecting rod, one end of the second connecting rod is connected to a supporting column, and the other end of the second connecting rod is connected to a clamping block through a fourth revolute. The invention can enable the front side of the bearing plate to rise to enable the scraps to slide off the bearing plate, thereby avoiding influencing the drilling speed of the working personnel on the parts and improving the production efficiency of the 3D printer.

Description

3D printing equipment

Technical Field

The invention relates to the technical field of 3D printing equipment, in particular to 3D printing equipment.

Background

The 3D printer, also called three-dimensional printer, is a machine of an accumulative manufacturing technique, i.e. a rapid prototyping technique, which is a machine based on a digital model file, and manufactures a three-dimensional object by printing a layer of adhesive material by using a special wax material, powdered metal or plastic and the like. State of the art three-dimensional printers are used to manufacture products. The principle of the 3D printer is that data and raw materials are put into the 3D printer, and the machine can build the product layer by layer according to the program.

In-process to 3D printer production and processing, can carry out drilling treatment to its part more, present drilling equipment to the part is many fixed settings, and the piece that produces when inconvenient to the part drilling is cleared up and is collected, frequently clears up the piece when the staff drills the part and can influence the drilling speed to the part to can lead to the production efficiency of 3D printer to reduce.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides 3D printing equipment, which solves the problems that most of the existing drilling devices for parts are fixedly arranged, the cleaning and the collection of scraps generated during the part drilling are inconvenient, and when workers drill the parts, the frequent cleaning of the scraps influences the drilling speed of the parts, so that the production efficiency of a 3D printer is reduced.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: A3D printing apparatus comprises a bottom plate

The lower surface of the plate is fixedly connected with the machine body of the double-shaft motor, the surfaces of two output shafts of the double-shaft motor are fixedly connected with first gears respectively, the two first gears are meshed with two second gears respectively through two chains, the two chains are respectively positioned in two through holes formed in the upper surface of the bottom plate, the two second gears are fixedly connected with the surface of the first rotating shaft, the surface of the first rotating shaft is sleeved with two first bearings, the two first bearings are respectively clamped on opposite surfaces of two fixed blocks, the lower surfaces of the two fixed blocks are fixedly connected with the upper surface of the bottom plate, the surface of the first rotating shaft is fixedly connected with the lower surface of the bearing plate through two first connecting blocks, the left side and the right side of the upper surface of the bearing plate are fixedly connected with first protection plates, and the back surfaces of the two first protection plates are fixedly connected with the front surface of the second protection plate, the opposite surfaces of the two first protection plates are fixedly connected with clamping mechanisms, the back surface of the second protection plate is movably connected with the back surface of the first baffle plate through two first hinges, the lower surface of the first baffle plate is lapped with the upper surface of the bearing plate, the left side surface of the left first protection plate is movably connected with the left side surface of the second baffle plate through two second hinges, the back surface of the second baffle plate is respectively lapped with the front surfaces of the two first protection plates, the upper surface of the bottom plate is fixedly connected with the lower surface of the fixing plate through two support rods, the two support rods are respectively positioned on the outer sides of the two fixing blocks, the opposite surfaces of the two support rods are respectively clamped with a second bearing, a second rotating shaft is respectively sleeved in the two second bearings, the right end of the right second rotating shaft is fixedly connected with an output shaft of the first motor, and the body of the first motor is fixedly connected with the right side surface of the first protection plate, and the relative one end of two second pivots is through screw thread post fixed connection, the surperficial threaded connection of screw thread post has a screw thread section of thick bamboo, screw thread section of thick bamboo joint is at the left surface of second connecting block, the upper surface of second connecting block and the lower fixed surface of slider are connected, slider sliding connection is in the spout that the fixed plate lower surface was seted up, the lower surface of second connecting block passes through first connecting plate and drilling equipment's top fixed connection, the equal fixedly connected with strutting arrangement in left and right sides of bottom plate lower surface.

Preferably, the upper surface of bottom plate and the lower fixed surface of two stoppers are connected, and the upper surface of two stoppers all overlaps with the lower surface of loading board, and two stoppers all are located the front side of loading board lower surface.

Preferably, a handle is arranged at a position, close to the right side face, of the front face of the second baffle, and the handle is in a semicircular ring shape.

Preferably, the right side surface of the first protection plate is fixedly connected with the lower surface of the storage battery through the second support block, a switch is arranged on the upper surface of the storage battery, the output end of the storage battery is electrically connected with the input end of the switch, and the output end of the switch is electrically connected with the input ends of the double-shaft motor, the clamping mechanism, the first motor and the drilling device respectively.

Preferably, the clamping mechanism comprises a shaft sleeve, a third gear, a fourth gear, a screw-nut pair, a first connecting rod, a second connecting rod, a clamping block, a supporting column and a pin, the shaft sleeve is sleeved on the unthreaded smooth cylindrical surface at the end part of the threaded column, the shaft sleeve is provided with a through hole, the end part of the threaded column is also provided with a pin hole matched with the through hole of the shaft sleeve, the pin is movably arranged in the through hole and the pin hole, the third gear is coaxially fixed on the shaft sleeve, the fourth gear is coaxially fixed on the screw rod, the third gear is meshed with the fourth gear, the screw rod is installed on the frame through a bearing, one end of the first connecting rod is connected to the nut through the first revolute pair, the other end of the first connecting rod is connected to the second connecting rod through the second revolute pair, one end of the second connecting rod is connected to the supporting column through the third revolute pair, the supporting column is fixed on the frame, the other end of the second connecting rod is connected to the clamping block through the fourth revolute pair, and the screw rod and nut pair is.

Preferably, drilling equipment includes second electric putter, the top of second electric putter is connected with the lower fixed surface of first connecting plate, the fuselage fixed connection of second electric putter's output through second connecting plate and second motor, the fixed surface of second motor output shaft is connected with the cutter mount pad, the lower surface of cutter mount pad is provided with the drill bit, the input of second electric putter and second motor all is connected with the output electricity of switch.

Preferably, the supporting device comprises a supporting plate, the upper surface of the supporting plate is fixedly connected with the lower surface of the bottom plate, and supporting legs are fixedly connected to the front side and the rear side of the lower surface of the supporting plate.

(III) advantageous effects

The invention provides 3D printing equipment, which has the following beneficial effects:

(1) this 3D printing apparatus, through setting up double-shaft motor, first gear, second gear, first pivot, loading board, first motor, screw thread post and screw thread section of thick bamboo, two output shafts of double-shaft motor during operation can make first gear revolve, can make two second gears drive first pivot through two chains and rotate when two first gear revolve, and can make two first gears rotate

First connecting block drives the loading board and rotates, thereby can make the antecedent of loading board upwards rise, the output shaft of first motor during operation can make the screw thread post rotate, thereby can make a screw thread section of thick bamboo remove on the surface of screw thread post, thereby can control the moving direction of a screw thread section of thick bamboo through the control to first motor output shaft direction of rotation, thereby can be better carry out drilling treatment to the part, thereby can control the work of double-shaft motor when needs clear up the piece on the loading board, can make loading board front side to rise and make the piece from the loading board landing, thereby can avoid influencing the drilling speed of staff to the part, thereby improved the production efficiency to the 3D printer.

(2) This 3D printing apparatus, through setting up first electric putter, pressing from both sides tight pole, second electric putter, second motor, cutter mount pad and drill bit, can control the contact or the separation of pressing from both sides tight pole and part when first electric putter shortens or extends to can be better to the part drill or take out the part, can control drill bit and zero when second electric putter extends or shortens

The parts are contacted and separated, so that the parts can be better drilled, and the output shaft of the second motor is installed through a cutter

The seat can make the drill bit rotate, can be better when contacting with the part to the part processing of driling, utilize the cutter mount pad can

The drill bit can be better replaced, and parts can be better machined.

(3) The 3D printing equipment has the advantages that the sliding block and the limiting block are arranged, the sliding block can be used for fixing the second connecting block, so that the threaded cylinder can better drive the second connecting block to move, the limiting block can better support the bearing plate, the bearing plate can be better kept horizontal, and the three-dimensional printing equipment is compact in structure, reasonable in design and high in practicability.

Drawings

FIG. 1 is a schematic cross-sectional view of the front view of the present invention;

FIG. 2 is a rear view of a second fender according to the present invention;

FIG. 3 is a left side view of the first protective plate according to the present invention;

FIG. 4 is a schematic cross-sectional side view of the chute of the present invention;

fig. 5 is a front view of the first protection plate of the present invention.

In the figure: the drilling machine comprises a base plate 1, a double-shaft motor 2, a first gear 3, a chain 4, a second gear 5, a through hole 6, a first rotating shaft 7, a first bearing 8, a fixed block 9, a first connecting block 10, a bearing plate 11, a first protection plate 12, a second protection plate 13, a clamping mechanism 15, a first hinge 16, a first baffle 17, a second hinge 18, a second baffle 19, a supporting rod 20, a fixed plate 21, a second bearing 22, a second rotating shaft 23, a first motor 23, a first supporting block 24, a threaded column 25, a threaded cylinder 26, a second connecting block 27, a sliding block 28, a sliding chute 29, a first connecting plate 30, a drilling device 31, a second electric push rod 311, a second connecting plate 312, a second motor 313, a cutter mounting seat 314, a drilling bit 315, a 32 supporting device, a supporting plate 321, a supporting 322, a limiting block 33, a handle 34, a second supporting block 35, a storage battery 36 and a switch 37.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that: A3D printing device comprises a bottom plate 1, wherein the lower surface of the bottom plate 1 is fixedly connected with a machine body of a double-shaft motor 2, the double-shaft motor 2 is arranged, when the double-shaft motor 2 works, two output shafts of the double-shaft motor 2 enable first gears 3 to rotate, when the two first gears 3 rotate, two second gears 5 drive a first rotating shaft 7 to rotate through two chains 4, the surfaces of the two output shafts of the double-shaft motor 2 are fixedly connected with the first gears 3, the two first gears 3 are respectively meshed with the two second gears 5 through the two chains 4, the two chains 4 are respectively positioned in two through holes 6 formed in the upper surface of the bottom plate 1, the two second gears 5 are respectively and fixedly connected with the surface of the first rotating shaft 7, two first bearings 8 are sleeved on the surface of the first rotating shaft 7, and through the arrangement of the first rotating shaft 7 and the first bearings 8, the first bearings 8 can fixedly support the first rotating shaft 7, thereby, the bearing plate 11 can be fixedly supported, when the second gear 5 drives the first rotating shaft 7 to rotate, the first rotating shaft 7 can drive the bearing plate 11 to rotate through the two first connecting blocks 10, thereby better enabling the front side of the bearing plate 11 to ascend, the two first bearings 8 are respectively clamped on the opposite surfaces of the two fixing blocks 9, the lower surfaces of the two fixing blocks 9 are fixedly connected with the upper surface of the base plate 1, the surface of the first rotating shaft 7 is fixedly connected with the lower surface of the bearing plate 11 through the two first connecting blocks 10, the upper surface of the base plate 1 is fixedly connected with the lower surfaces of the two limit blocks 33, the upper surfaces of the two limit blocks 33 are respectively lapped with the lower surface of the bearing plate 11, the two limit blocks 33 are both positioned on the front side of the lower surface of the bearing plate 11, by arranging the bearing plate 11, parts can be placed, thereby enabling the clamping mechanism to clamp and fix the parts, make drilling equipment 31 carry out drilling treatment to the part, the first guard plate 12 of the equal fixedly connected with in both sides about 11 upper surfaces of loading board, and the back of two first guard plates 12 all with the front fixed connection of second guard plate 13, through setting up first guard plate 12 and second guard plate 13, can make and prevent the piece from splashing drilling the part to can clear up the piece, and the equal fixedly connected with clamping mechanism of opposite face of two first guard plates 12.

The clamping mechanism comprises a shaft sleeve 52, a third gear 51, a fourth gear 53, a screw-nut pair, a first connecting rod 56, a second connecting rod 65, a clamping block 60, a supporting column 55 and a pin 64, wherein the shaft sleeve 52 is sleeved on a thread-free smooth cylindrical surface at the end part of the threaded column 25, a through hole is formed in the shaft sleeve 52, a pin hole matched with the through hole of the shaft sleeve 52 is also formed in the end part of the threaded column 25, the pin 64 is movably arranged in the through hole and the pin hole, the third gear 51 is coaxially fixed on the shaft sleeve 52, the fourth gear 53 is coaxially fixed on the screw 63, the third gear 51 is meshed with the fourth gear 53, the screw 63 is arranged on a rack 66 through a bearing 54, one end of the first connecting rod 56 is connected to the nut 61 through a first rotating pair 62, the other end of the first connecting rod 56 is connected to the second connecting rod 65 through a second rotating pair 58, one, the other end of the second connecting rod 65 is connected to the clamping block 60 through a fourth rotating pair 59, and a nut locking mechanism is arranged on the screw rod nut pair.

The back of the second protection plate 13 is movably connected with the back of the first baffle plate 16 through two first hinges 15, the lower surface of the first baffle plate 16 is in lap joint with the upper surface of the bearing plate 11, and the left side surface of the left first protection plate 12 is connected with the left side surface of the bearing plate 11 through two second hinges

The page 17 is movably connected with the left side surface of the second baffle plate 18, the first baffle plate 16 and the second baffle plate 18 are arranged, so that scraps can be better prevented from splashing, when the front side of the bearing plate 11 is lifted, the first baffle plate 16 can be separated from the bearing plate 11 under the action of the first hinge 15, so that the scraps on the bearing plate 11 can better slide off the bearing plate 11, the back surface of the second baffle plate 18 is respectively overlapped with the front surfaces of the two first baffle plates 12, the position, close to the right side surface, of the front surface of the second baffle plate 18 is provided with the handle 34, the handle 34 is in a semicircular ring shape, the second baffle plate 18 can be controlled by the operation of the handle 34 through the arrangement of the handle 34, so that parts can be better placed on the bearing plate 11 or taken down from the bearing plate 11, the upper surface of the bottom plate 1 is fixedly connected with the lower surface of the fixing plate 20 through the two support rods 19, and the two support, and the opposite surfaces of the two support rods 19 are respectively clamped with a second bearing 21, and the two second bearings 21 are respectively sleeved with a second rotating shaft 22, and the right end of the right second rotating shaft 22 is fixedly connected with the output shaft of the first motor 23, by arranging the first motor 23, the output shaft of the first motor 23 rotates the threaded column 25 when the first motor 23 works, so that the threaded cylinder 26 moves on the surface of the threaded column 25, the rotating direction of the output shaft of the first motor 23 is controlled, so that the moving direction of the threaded cylinder 26 on the surface of the threaded column 25 can be controlled, so that the position of the drilling device 31 can be adjusted, the body of the first motor 23 is fixedly connected with the right side surface of the first protection plate 12 through the first support block 24, and the opposite ends of the two second rotating shafts 22 are fixedly connected through the threaded column 25, the threaded cylinder 26 is in threaded connection with the surface of the threaded column 25, the threaded cylinder 26 is clamped on the left side surface of the second connection block 27, the upper surface of the second connecting block 27 is fixedly connected with the lower surface of the sliding block 28, the sliding block 28 is slidably connected in a sliding groove 29 formed in the lower surface of the fixing plate 20, by arranging the sliding block 28, the shapes of the sliding block 28 and the sliding groove 29 are both T-shaped, the sliding block 28 can be used for fixing the second connecting block 27, so that the threaded cylinder 26 can better drive the second connecting block 27 to move, the lower surface of the second connecting block 27 is fixedly connected with the top end of a drilling device 31 through a first connecting plate 30, the drilling device 31 comprises a second electric push rod 311, the top end of the second electric push rod 311 is fixedly connected with the lower surface of the first connecting plate 30, by arranging the second electric push rod 311, the contact and separation of the drill bit 315 and a part can be controlled when the second electric push rod 311 extends or shortens, so that the part can be drilled, the output end of the second electric push rod 311 is fixedly connected with the body of the second, the surface of the output shaft of the second motor 313 is fixedly connected with a cutter mounting seat 314, through the arrangement of the second motor 313, the output shaft of the second motor 313 enables a drill 315 to rotate through the cutter mounting seat 314, the part can be drilled when in contact with the part, the drill 315 is arranged on the lower surface of the cutter mounting seat 314, the input ends of a second electric push rod 311 and a second motor 313 are electrically connected with the output end of a switch 37, the left side and the right side of the lower surface of the bottom plate 1 are fixedly connected with supporting devices 32, each supporting device 32 comprises a supporting plate 321, the upper surface of the supporting plate 321 is fixedly connected with the lower surface of the bottom plate 1, the front side and the rear side of the lower surface of the supporting plate 321 are fixedly connected with supporting legs 322, through the arrangement of the supporting plates 321 and the supporting legs 322, the bottom plate 1 can be supported, the part can be drilled by a worker, the right side surface of, through setting up battery 36, make biax motor 2, first motor 23, the more convenient electricity of second electric putter 311 and second motor 313 works, the upper surface of battery 36 is provided with switch 37, the output of battery 36 is connected with switch 37's input electricity, switch 37's output respectively with biax motor 2, clamping mechanism, first motor 23 is connected with drilling equipment 31's input electricity, through setting up switch 37, switch 37's model is LW26-20 omnipotent change over switch, control biax motor 2 that can be better, first motor 23, the work of second electric putter 311 and second motor 313, thereby can carry out drilling treatment to the part, thereby can clear up the piece.

The working principle is as follows:

when it is desired to drill a part, the second prevention plate 18 is separated from the first prevention plate 12 using the handle 34, and then the part is placed on the loading plate 11.

The working principle of the clamping mechanism is that connection and separation between the shaft sleeve and the threaded column are controlled by inserting and taking out pins, when a workpiece is clamped by the clamping mechanism, the pins are simultaneously inserted into the pin holes and the through holes, the shaft sleeve is fixed with the threaded column, the first motor is started, the threaded column is driven to rotate by the first motor, the threaded column drives the third gear to rotate, the third gear drives the fourth gear to rotate, the fourth gear drives the lead screw to rotate, the lead screw drives the nut to move, the nut moves to push the second connecting rod down through the first connecting rod, the second connecting rod pushes the clamping block to clamp the workpiece, then the lead screw nut pair is locked by the locking mechanism of the lead screw nut pair, the nut cannot move, and the workpiece is always clamped in the machining process. And then the pin is taken out from the through hole I and the pin hole, the shaft sleeve is separated from the threaded column, and the motion of the separated threaded column is irrelevant to the clamping mechanism. When the workpiece is machined, the nut locking mechanism is loosened, the clamping mechanism is loosened, and the workpiece can be taken out.

The second baffle 18 is in contact with the first protection plate 12 by using the handle 34, the first motor 23 is controlled to work by the switch 37, the output shaft of the first motor 23 drives the threaded column 25 to rotate in the positive direction by the second rotating shaft 22, so that the threaded cylinder 26 drives the second connecting block 27 to move in the right direction, the drilling device 31 is moved in the right direction, the output shaft of the first motor 23 is controlled to rotate in the negative direction, the threaded cylinder 26 drives the second connecting block 27 to move in the left direction, the position of the drilling device 31 can be adjusted, then the second electric push rod 311 and the second motor 313 are controlled to work by the switch 37, the second electric push rod 311 drives the drill 315 by the second motor 313 to move downwards, the output shaft of the second motor 313 drives the drill 315 to rotate by the cutter mounting seat 314, and therefore, parts can be drilled in the state that the second electric push rod 311 extends.

After drilling, the second electric push rod 311 is controlled to shorten and the second motor 313 is controlled to stop working by the switch 37, when the second electric push rod 311 returns to the original position, the second electric push rod 311 is controlled to stop working by the switch 37, then the clamping mechanism is controlled to release by the switch 37, and when the part can be taken out, the part is taken out by rotating the second baffle plate 18.

When the scraps need to be cleaned, the operation of the dual-shaft motor 2 is controlled by the switch 37, so that two output shafts of the dual-shaft motor 2 drive the two first gears 3 to rotate, the two first gears 3 enable the two second gears 5 to rotate through the two chains 4, the first rotating shaft 7 enables the bearing plate 11 to rotate through the first connecting block 10, so that the front side of the bearing plate 11 is lifted, when the bearing plate 11 is lifted for a certain angle, the dual-shaft motor 2 is controlled by the switch 37 to stop operating, so that the first baffle 16 is separated from the bearing plate 11 to form an opening, so that the scraps on the bearing plate 11 slide down from the opening, after the scraps are completely slid down, the output shafts of the dual-shaft motor 2 are controlled by the switch 37 to rotate in the opposite direction, so that the front side of the bearing plate 11 moves downwards, when the lower surface of the bearing plate 11 is contacted with the, while the first apron 16 overlaps the carrier plate 11.

To sum up, the 3D printing apparatus is provided with a dual-axis motor 2, a first gear 3, a second gear 5, a first rotating shaft 7, a bearing plate 11, a first motor 23, a threaded post 25 and a threaded cylinder 26, wherein the dual-axis motor 2 rotates the first gear 3 through two output shafts of the dual-axis motor 2 when in operation, the two second gears 5 drive the first rotating shaft 7 to rotate through two chains 4 when the two first gears 3 rotate, so that the first connecting block 10 drives the bearing plate 11 to rotate, thereby the bearing plate 11 is lifted upwards, the threaded post 25 rotates through the output shaft of the first motor 23 when the first motor 23 is in operation, thereby the threaded cylinder 26 moves on the surface of the threaded post 25, thereby the moving direction of the threaded cylinder 26 can be controlled through controlling the rotating direction of the output shaft of the first motor 23, thereby the drilling treatment can be performed on the part, thereby can control the work of biax motor 2 when needs clear up the piece on loading board 11, make loading board 11 front side rise and make the piece from loading board 11 landing to can avoid influencing the drilling speed of staff to the part, thereby improve the production efficiency to the 3D printer.

Meanwhile, the 3D printing equipment comprises a second electric push rod 311, a second motor 313, a cutter mounting seat 314 and a drill bit 315, wherein the clamping mechanism controls the contact or separation of a clamping block and a part, so that the part can be drilled or taken out, the second electric push rod 311 can control the contact and separation of the drill bit 315 and the part when being extended or shortened, so that the part can be drilled, an output shaft of the second motor 313 enables the drill bit 315 to rotate through the cutter mounting seat 314, the part can be drilled when being in contact with the part, the drill bit 315 can be replaced by the cutter mounting seat 314, and the part can be machined.

Claims

1. A3D printing apparatus, comprising a base plate (1), characterized in that: the lower surface of the bottom plate (1) is fixedly connected with the machine body of the double-shaft motor (2), the surfaces of two output shafts of the double-shaft motor (2) are fixedly connected with first gears (3), the two first gears (3) are respectively meshed with two second gears (5) through two chains (4), the two chains (4) are respectively positioned in two through holes (6) formed in the upper surface of the bottom plate (1), the two second gears (5) are respectively fixedly connected with the surface of a first rotating shaft (7), the surface of the first rotating shaft (7) is sleeved with two first bearings (8), the two first bearings (8) are respectively clamped on opposite surfaces of two fixed blocks (9), the lower surfaces of the two fixed blocks (9) are fixedly connected with the upper surface of the bottom plate (1), the surface of the first rotating shaft (7) is fixedly connected with the lower surface of a bearing plate (11) through two first connecting blocks (10), the left side and the right side of the upper surface of the bearing plate (11) are fixedly connected with first protection plates (12), the back surfaces of the two first protection plates (12) are fixedly connected with the front surface of a second protection plate (13), the opposite surfaces of the two first protection plates (12) are fixedly connected with clamping mechanisms, the back surface of the second protection plate (13) is movably connected with the back surface of a first baffle plate (16) through two first hinges (15), the lower surface of the first baffle plate (16) is overlapped with the upper surface of the bearing plate (11), the left side surface of the left first protection plate (12) is movably connected with the left side surface of a second baffle plate (18) through two second hinges (17), the back surface of the second baffle plate (18) is respectively overlapped with the front surfaces of the two first protection plates (12), and the upper surface of the bottom plate (1) is fixedly connected with the lower surface of a fixing plate (20) through two support rods (19), the two support rods (19) are respectively positioned at the outer sides of the two fixed blocks (9), the opposite surfaces of the two support rods (19) are respectively clamped with a second bearing (21), a second rotating shaft (22) is sleeved in the two second bearings (21), the right end of the right second rotating shaft (22) is fixedly connected with an output shaft of a first motor (23), the machine body of the first motor (23) is fixedly connected with the right side surface of the first protection plate (12) through a first support block (24), the opposite ends of the two second rotating shafts (22) are fixedly connected through threaded columns (25), the surface threads of the threaded columns (25) are connected with threaded cylinders (26), the threaded cylinders (26) are clamped on the left side surface of a second connecting block (27), the upper surface of the second connecting block (27) is fixedly connected with the lower surface of a sliding block (28), and the sliding block (28) is slidably connected in sliding grooves (29) formed in the lower surface of the fixed plate (20), the lower surface of the second connecting block (27) is fixedly connected with the top end of a drilling device (31) through a first connecting plate (30), and the left side and the right side of the lower surface of the bottom plate (1) are fixedly connected with supporting devices (32);

the clamping mechanism comprises a shaft sleeve (52), a third gear (51), a fourth gear (53), a screw-nut pair, a first connecting rod (56), a second connecting rod (65), a clamping block (60), a supporting column (55) and a pin (64), wherein the shaft sleeve (52) is sleeved on a thread-free smooth cylindrical surface at the end part of a thread column (25), a through hole is formed in the shaft sleeve (52), a pin hole matched with the through hole of the shaft sleeve (52) is also formed in the end part of the thread column (25), the pin (64) is movably arranged in the through hole and the pin hole, the third gear (51) is coaxially fixed on the shaft sleeve (52), the fourth gear (53) is coaxially fixed on a screw rod (63), the third gear (51) is meshed with the fourth gear (53), the screw rod (63) is arranged on a rack (66) through a bearing (54), one end of the first connecting rod (56) is connected to the nut (61) through a first, the other end of the first connecting rod (56) is connected to the second connecting rod (65) through a second revolute pair (58), one end of the second connecting rod (65) is connected to the supporting column (55) through a third revolute pair (57), the supporting column (55) is fixed to the rack (66), the other end of the second connecting rod (65) is connected to the clamping block (60) through a fourth revolute pair (59), and the screw rod and nut pair is provided with a nut locking mechanism.

2. 3D printing device according to claim 1, characterized in that: the upper surface of bottom plate (1) and the lower fixed connection of two stopper (33), and the upper surface of two stopper (33) all with the lower surface overlap joint of loading board (11), and two stopper (33) all are located the front side of loading board (11) lower surface.

3. 3D printing device according to claim 1, characterized in that: the handle (34) is arranged at the position, close to the right side face, of the front face of the second baffle plate (18), and the handle (34) is in a semicircular ring shape.

4. 3D printing device according to claim 1, characterized in that: the right side face of the first protection plate (12) is fixedly connected with the lower surface of a storage battery (36) through a second support block (35), a switch (37) is arranged on the upper surface of the storage battery (36), the output end of the storage battery (36) is electrically connected with the input end of the switch (37), and the output end of the switch (37) is electrically connected with the input ends of the double-shaft motor (2), the clamping mechanism, the first motor (23) and the drilling device (31) respectively.

5. 3D printing device according to claim 1, characterized in that: drilling equipment (31) include second electric putter (311), the top of second electric putter (311) and the lower fixed surface of first connecting plate (30) are connected, the output of second electric putter (311) passes through second connecting plate (312) and the fuselage fixed connection of second motor (313), the fixed surface of second motor (313) output shaft is connected with cutter mount pad (314), the lower surface of cutter mount pad (314) is provided with drill bit (315), the input of second electric putter (311) and second motor (313) all is connected with the output electricity of switch (37).

6. 3D printing device according to claim 1, characterized in that: the supporting device (32) comprises a supporting plate (321), the upper surface of the supporting plate (321) is fixedly connected with the lower surface of the bottom plate (1), and supporting legs (322) are fixedly connected to the front side and the rear side of the lower surface of the supporting plate (321).