CN112205757A

CN112205757A - Convenient to use's drawing device for mechanical design

Info

Publication number: CN112205757A
Application number: CN202011093041.1A
Authority: CN
Inventors: 张思婉; 史艳红; 吴新佳; 王兰兰
Original assignee: Zhengzhou Railway Vocational and Technical College
Current assignee: Zhengzhou Railway Vocational and Technical College
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-01-12

Abstract

The invention discloses a convenient-to-use drawing device for mechanical design, and relates to the technical field of drawing devices for mechanical design; for placing and cutting the drawing paper; the novel desk comprises a first desk plate, wherein the outer wall of one side of the first desk plate is connected with a rotating plate in a rotating mode through a rotating shaft, the outer wall of one side of the first desk plate is fixed with a stop dog through a bolt, the outer wall of one side of the rotating plate is connected with a paper placing plate through a hinge, the outer wall of the bottom of the rotating plate is connected with a clamping plate in a rotating mode, the outer wall of the top of the paper placing plate is fixed with a fixing frame through screws, the inner wall of the fixing frame is connected with a hollow frame in a rotating mode, the inner wall of the hollow frame is connected with two. According to the invention, the rotating plate is rotatably connected to the outer wall of one side of the table plate, so that the angle of the rotating plate relative to the table plate I is matched with the angle of the drawing plate relative to the table plate I, and the paper placing plate is used as an expansion plate of the table plate I.

Description

Convenient to use's drawing device for mechanical design

Technical Field

The invention relates to the technical field of drawing devices for mechanical design, in particular to a drawing device for mechanical design, which is convenient to use.

Background

The mechanical design is a working process which conceives, analyzes and calculates the working principle, structure, movement mode, force and energy transmission mode, materials and shape dimensions of each part, a lubricating method and the like of the machine according to the use requirement and converts the working principle, the structure, the movement mode, the force and energy transmission mode, the materials and the shape dimensions of each part, the lubricating method and the like into a specific description as a manufacturing basis, the final purpose of the mechanical design is to form an electronic or paper mechanical design drawing, but in the drawing process, a large amount of paper is needed, and when the number of parts needing to be drawn is large, the part drawing cannot be completely presented by the commonly used A4 or A3 paper, so that the wound drawing paper sometimes needs to be properly cut, and the size of the drawing paper can be better adjusted according to the use requirement.

Through the retrieval, chinese patent application number is CN 201920286466.0's patent discloses a convenient to use's drawing device for mechanical design, relates to mechanical design auxiliary device technical field, including the table body and shelf, has the table on the table body top surface, has the table leg on the bottom surface, and the shelf slope is installed and is close to the position of rear side on the top surface of table, has the drawing district on the table, has standing groove and spout in the drawing district, and the standing groove is used for depositing the instrument that uses in the drawing process, and the both ends of slide rule are slidable mounting respectively in two spouts.

The drawing device for the design of the full-automatic machine in the patent has the following defects: when the size of the drawing paper of mechanical design drawing usefulness is adjusted to needs at the in-process of drawing, can't be quick cut the drawing paper, reduced the efficiency of drawing.

Disclosure of Invention

The invention aims to solve the defects that in the prior art, when the size of drawing paper for mechanical design drawing needs to be adjusted in the drawing process, the drawing paper cannot be cut quickly, and the drawing efficiency is reduced, and provides a drawing device for mechanical design, which is convenient to use.

In order to achieve the purpose, the invention adopts the following technical scheme:

a convenient-to-use drawing device for mechanical design comprises a first table plate, wherein the outer wall of one side of the first table plate is rotatably connected with a rotating plate through a rotating shaft, the outer wall of one side of the first table plate is fixedly provided with a stop block through a bolt, the outer wall of one side of the rotating plate is connected with a paper placing plate through a hinge, the outer wall of the bottom of the rotating plate is rotatably connected with a clamping plate, the outer wall of the top of the paper placing plate is fixedly provided with a fixing frame through a screw, the inner wall of the fixing frame is rotatably connected with a hollow frame, the inner wall of the hollow frame is clamped with two springs II, one ends of the two springs II, which are far away from the hollow frame, are clamped with the same blade, the outer wall of the top of the paper placing plate is fixedly provided with a mounting plate through a bolt, the inner wall of the paper placing plate, two one side outer walls of backup pad and one side outer wall of backup pad all rotate and are connected with the rotation screens dish, two it has same winding up roller to rotate screens dish one end joint.

As a further scheme of the invention: the drawing board is characterized in that the outer wall of the top of the table board is connected with a drawing board through a hinge, an inclined groove is formed in the outer wall of the top of the drawing board, a limiting column is fixed on the inner wall of the inclined groove through a bolt, the outer wall of the circumference of the limiting column is connected with an L-shaped support in a sliding mode, the outer wall of the top of the L-shaped support is connected with two screw rods in a rotating mode, the outer wall of the bottom of each screw rod is connected with a pressing plate in a rotating mode through a bearing, the outer wall of the top of each pressing plate is.

As a further scheme of the invention: the inner wall of the first table plate is fixedly provided with a support frame through bolts, the inner wall of the support frame is connected with a lead screw in a rotating mode, the inner wall of the support frame is connected with a moving seat in a sliding mode, the inner wall of the moving seat is connected with a second connecting rod in a rotating mode, a slot is formed in the outer wall of one side of the second connecting rod, a first spring is connected to the outer wall of the top of the second connecting rod in a clamping mode, a clamping block is connected to one end, far away from the second.

As a further scheme of the invention: the drawing board is characterized in that the outer wall of one side of the drawing board is rotatably connected with a first connecting rod, jacks are formed in the outer wall of the top of the first connecting rod and the outer wall of the top of the second connecting rod, and a base plate is fixed on the inner wall of one side of the first table board through bolts.

As a further scheme of the invention: the outer wall of one bottom of the table plate is fixedly provided with a telescopic column through bolts, and the outer wall of the bottom of the telescopic column is rotatably connected with universal wheels.

As a further scheme of the invention: the outer wall of one side of the table plate is connected with a storage box in a sliding mode.

As a further scheme of the invention: the inner wall of one bottom of the table plate is fixedly provided with a dust collection assembly through a bolt, and the outer wall of one side of the dust collection assembly is connected with a scrap suction box through a pipeline.

As a further scheme of the invention: the inner wall of the chip suction box is rotatably connected with a rotary tool rest, and the outer wall of the top of the chip suction box is provided with a placing groove.

As a further scheme of the invention: the drawing board is characterized in that a sliding seat is fixed on the outer wall of one side of the drawing board through bolts, and an illuminating lamp is connected to the inner wall of the sliding seat and the outer wall of the top of the L-shaped support in a sliding mode.

As a further scheme of the invention: the inner wall of one side of the table plate is connected with two expansion plates in a sliding mode.

The invention has the beneficial effects that:

1. the angle of the drawing board can be adjusted by arranging the drawing board to rotate along the inner wall of one side of the table board, so that a user can flexibly carry out drawing operation, the L-shaped bracket can slide along the outer wall of the circumference of the limiting column, and the inclined groove is arranged in the inclined direction, so that when the L-shaped bracket moves, two sides of the L-shaped bracket can simultaneously approach to the central position of the drawing board in four directions, namely the upper direction, the lower direction, the left direction and the right direction, and meanwhile, the pressing plate can be driven to move downwards by rotating the screw rod, so that the pressing plate can compact and fix the surface of the drawing paper, the phenomenon that the drawing paper moves in the drawing process can be effectively prevented, the drawing accuracy is ensured, meanwhile, the movement of the L-shaped bracket can lead the drawing paper with different specifications and sizes to be fixed by the pressing plate in a pressing way, so that the drawing paper can, is convenient for the user to use.

2. The movable seat can be driven to move along the inner wall of the support frame by rotating the lead screw, a hand wheel is fixed on the outer wall of one side of the lead screw, the hand wheel can slide in the support frame to any position by rotating the hand wheel, meanwhile, the first connecting rod can be clamped by the slot, the first spring can be used for clamping the clamping block in the jack at the top of the first connecting rod and the jack at the top of the second connecting rod, thereby forming an integral body between the first connecting rod and the second connecting rod, and rapidly mounting and dismounting the first connecting rod and the second connecting rod by utilizing the elasticity of the first spring, can dismantle the drawing board fast when the drawing board surface goes wrong and need maintain, along with the motion that removes the seat can utilize connecting rod one and connecting rod two to drive the drawing board and rotate along an inner wall of table to can prescribe a limit to the drawing board for the angle between the table one.

3. Connect in the angle of a table one side outer wall through rotating the rotor plate and can make the rotor plate identical between the angle of a table for the table one and the angle of drawing board for the table one, thereby can make the paper place the expansion board of the board as the table one, utilize the paper to place the board and can be used for placing subassembly such as drawing paper, the board setting is placed to the retractable to the paper simultaneously, can further improve the usable floor area that the board was placed to the paper, simultaneously because the paper is placed the board and is improved the hinge and rotate and connect in rotor plate one side outer wall, can place the board through the screens board and support the paper, can make the paper place the board through rotating the screens board and keep rotating along the rotor plate after finishing using simultaneously, thereby can reduce the occupation space of whole device.

4. Can be used for placing the drawing paper through being provided with the mounting panel, when the drawing paper is for when rolling up the formula, can utilize two rotation screens dish to carry out the joint to the winding roller simultaneously to the drawing paper through being provided with around the winding roller and fix, can make simultaneously to rotate around the winding roller, utilize the spring three can adjust the distance between backup pad one and the backup pad two fast, thereby can install and fix around the winding roller, utilize and can be used for not passing through the drawing paper that cuts around the winding roller, can drive the blade through being provided with spring two and move down, thereby can utilize the blade to cut the drawing paper, simultaneously because hollow frame utilizes damping pivot to rotate to connect in the mount inner wall, can make the blade be the slope setting of certain angle, be convenient for cut the drawing paper better.

5. Can provide the adsorption affinity through being provided with dust absorption component to utilize and inhale bits box and absorb the residue on drawing paper surface, dust absorption component can be for equipment such as air exhauster, utilizes atmospheric pressure to make rotatory knife rest can rotate under the effect of wind power with the absorptive in-process of residue, and rotatory knife rest surface is provided with more than two blades simultaneously, can cut the breakage to absorptive residue, improves the throughput to the residue.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a drawing apparatus for mechanical design according to the present invention;

FIG. 2 is a schematic side view of a drawing apparatus for mechanical design according to the present invention;

FIG. 3 is a schematic diagram of a backside structure of a drawing device for mechanical design according to the present invention;

FIG. 4 is a schematic top view of a drawing apparatus for mechanical design according to the present invention;

FIG. 5 is a schematic structural diagram of a drawing board assembly of a drawing device for mechanical design according to the present invention;

FIG. 6 is a schematic structural diagram of an adjusting assembly of a drawing device for mechanical design according to the present invention;

FIG. 7 is a schematic diagram of a crumb rubber cleaning assembly of the present invention for a convenient mechanical drawing device;

FIG. 8 is a schematic diagram of a cutting assembly for cutting drawing paper in an easy-to-use drawing apparatus for machine design according to the present invention;

fig. 9 is a schematic structural diagram of a paper placing board assembly of a drawing device for mechanical design according to the present invention.

In the figure: 1-table plate, 2-drawing plate, 3-scrap suction box, 4-placing groove, 5-rotating plate, 6-paper placing plate, 7-backing plate, 8-storage box, 9-stop block, 10-clamping plate, 11-connecting rod I, 12-sliding seat, 13-telescopic column, 14-universal wheel, 15-dust-absorbing component, 16-supporting frame, 17-lead screw, 18-connecting rod II, 19-telescopic plate, 20-oblique groove, 21-L-shaped bracket, 22-screw rod, 23-illuminating lamp, 24-protecting plate, 25-pressing plate, 26-guide column, 27-limiting column, 28-jack, 29-clamping block, 30-spring I, 31-slot, 32-moving seat, 33-rotating tool rest, 34-a hollow frame, 35-a second spring, 36-a blade, 37-a fixed frame, 38-a winding roller, 39-a first support plate, 40-a third spring, 41-a mounting plate, 42-a second support plate and 43-a rotating clamping disc.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

A drawing device for mechanical design convenient to use is shown in figures 1, 8 and 9 and comprises a table board I1, wherein the outer wall of one side of the table board I1 is rotatably connected with a rotating board 5 through a rotating shaft, the outer wall of one side of the table board I1 is fixedly provided with a stop block 9 through a bolt, the outer wall of one side of the rotating board 5 is connected with a paper placing board 6 through a hinge, the outer wall of the bottom of the rotating board 5 is rotatably connected with a clamping board 10, the outer wall of the top of the paper placing board 6 is fixedly provided with a fixing frame 37 through a screw, the inner wall of the fixing frame 37 is rotatably connected with a hollow frame 34, the inner wall of the hollow frame 34 is clamped with two springs II 35, one ends, far away from the hollow frame 34, of the two springs II 35 are clamped with a same blade 36, the outer wall of the top of the paper placing board 6 is fixedly provided with a mounting plate 41 through a bolt, the inner wall of the, a second supporting plate 42 is fixed on the outer wall of the top of the paper placing plate 6 through bolts, the outer wall of one side of the second supporting plate 42 and the outer wall of one side of the first supporting plate 39 are rotatably connected with rotating clamping disks 43, and one end of each of the two rotating clamping disks 43 is clamped with the same winding roller 38; the angle of the rotating plate 5 relative to the first table board 1 can be matched with the angle of the drawing board 2 relative to the first table board 1 by rotationally connecting the rotating plate 5 to the outer wall of one side of the first table board 1, so that the paper placing board 6 can be used as an expansion board of the first table board 1, the paper placing board 6 can be used for placing components such as drawing paper and the like, meanwhile, the paper placing board 6 is arranged to be telescopic, the using area of the paper placing board 6 can be further increased, meanwhile, the hinge of the paper placing board 6 is improved to be rotationally connected to the outer wall of one side of the rotating plate 5, the paper placing board 6 can be supported through the clamping board 10, meanwhile, the paper placing board 6 can be kept to rotate along the rotating plate 5 by rotating the clamping board 10 after the use is finished, the occupied space of the whole device can be reduced, and the rotating plate 5 can be used for supporting, the mounting plate 41 can be used for placing the drawing paper, when the drawing paper is wound, the drawing sheet can be wound by providing the winding roller 38 while the winding roller 38 can be snap-fitted by two rotating chuck plates 43, at the same time, the winding roller 38 can rotate, the distance between the first supporting plate 39 and the second supporting plate 42 can be quickly adjusted by the third spring 40, thereby the winding roller 38 can be installed and fixed, the winding roller 38 can be used for winding the uncut drawing paper, the blade 36 can be driven to move downwards by the spring 35, so that the drawing paper can be cut by the blade 36, and at the same time, because the hollow frame 34 is rotatably connected to the inner wall of the fixed frame 37 by the damping rotating shaft, the blade 36 may be angled to facilitate better cutting of the drawing sheet.

In order to fix drawing papers of different specifications conveniently, as shown in fig. 1 and 5, the outer wall of the top of a table board 1 is connected with a drawing board 2 through a hinge, the outer wall of the top of the drawing board 2 is provided with an oblique groove 20, the inner wall of the oblique groove 20 is fixed with a limit column 27 through a bolt, the outer wall of the circumference of the limit column 27 is connected with an L-shaped bracket 21 in a sliding manner, the outer wall of the top of the L-shaped bracket 21 is rotatably connected with two screw rods 22, the outer walls of the bottoms of the two screw rods 22 are both rotatably connected with a pressing plate 25 through bearings, the outer walls of the tops of the two pressing plates 25 are both fixed with two guide columns 26 through bolts, and; the angle of the drawing board 2 can be adjusted by arranging the drawing board 2 to rotate along the inner wall of one side of the table board 1, so that a user can flexibly perform drawing operation, the L-shaped bracket 21 can slide along the outer wall of the circumference of the limit column 27, and the inclined groove 20 is arranged in an inclined direction, so that when the L-shaped bracket 21 moves, two sides of the L-shaped bracket 21 can simultaneously approach to the central position of the drawing board 2 in four directions, namely, the upper direction, the lower direction, the left direction and the right direction, and meanwhile, the pressing plate 25 can be driven to move downwards by rotating the screw rod 22, so that the pressing plate 25 can compact and fix the surface of the drawing paper, the phenomenon that the drawing paper moves in the drawing process can be effectively prevented, the accuracy of drawing is ensured, meanwhile, the movement of the L-shaped bracket 21 can enable the drawing paper with different specifications and sizes to be pressed and fixed by, make the drawing paper can be in the central point of drawing board 2 and put, convenient to use person uses, and the in-process that can carry out the support to the drawing paper through being provided with protection shield 24 simultaneously avoids the drawing paper phenomenon damaged to appear at the drawing in-process, can improve frictional force simultaneously, and protection shield 24 bottom is provided with the baffle and can is used for placing drawing tools such as compasses, ruler, and the baffle is L type structure, can avoid appearing the phenomenon that drawing tool dropped along with the rotation of drawing board 2.

In order to define the angle of rotation of the drawing board 2; as shown in fig. 3, 4 and 6, a support frame 16 is fixed on the inner wall of the first table board 1 through bolts, a lead screw 17 is connected on the inner wall of the support frame 16 in a rotating manner, a moving seat 32 is connected on the inner wall of the support frame 16 in a sliding manner, a second connecting rod 18 is connected on the inner wall of the moving seat 32 in a rotating manner, a slot 31 is formed in the outer wall of one side of the second connecting rod 18, a first spring 30 is clamped on the outer wall of the top of the second connecting rod 18, a clamping block 29 is clamped on one end, away from the second connecting rod 18, of the first spring 30, the circumferential outer wall of the clamping block 29 is connected on the inner wall of the inclined groove 20 in a sliding manner, a first connecting rod 11 is connected on the outer wall of one side of the drawing board; the movable base 32 can be driven to move along the inner wall of the support frame 16 by rotating the lead screw 17, a hand wheel is fixed on the outer wall of one side of the lead screw 17, the hand wheel can slide to any position in the support frame 16 by rotating the hand wheel, meanwhile, the slot 31 can be used for clamping the first connecting rod 11, meanwhile, the first spring 30 can be used for clamping the clamping block 29 in the insertion hole 28 at the top of the first connecting rod 11 and the insertion hole 28 at the top of the second connecting rod 18, so that the first connecting rod 11 and the second connecting rod 18 form a whole, the first connecting rod 11 and the second connecting rod 18 can be quickly installed and detached by utilizing the elastic force of the first spring 30, when the surface of the drawing board 2 has problems and needs to be maintained, the drawing board 2 can be quickly detached, along with the movement of the movable base 32, the first connecting rod 11 and the second connecting rod 18 can be used for driving the drawing board 2 to rotate along the inner wall of the, can make 2 bottom outer walls of drawing board place in backing plate 7 upper surface through breaking away from between connecting rod 11 and the two 18 connecting rods after finishing using to can utilize backing plate 7 to support drawing board 2, make 2 surfaces of drawing board imbed 1 inner wall of table, accomplish accomodating of drawing board 2, improve the convenience of using.

To facilitate movement of the entire device; as shown in fig. 3, the outer wall of the bottom of the first table board 1 is fixed by bolts, and the outer walls of the bottoms of the telescopic columns 13 are rotatably connected with universal wheels 14; can adjust the height of table 1 between for the horizontal plane through being provided with flexible post 13, the user of the different heights of being convenient for carries out the operation of drawing, is provided with four reinforcing plates between the flexible post 13 inner wall simultaneously, can utilize the foot to exert pressure to the reinforcing plate to be convenient for lift flexible post 13 wholly, utilize the use of the whole device of being convenient for of universal wheel 14.

For storage of drawing papers; as shown in fig. 2, a storage box 8 is connected to the outer wall of one side of the first table board 1 in a sliding manner; through being provided with storage box 8 and can be used for placing the graphics primitive, also can carry out interim depositing with the drawing after the drawing finishes simultaneously.

In order to collect the eraser crumbs; as shown in fig. 4 and 7, a dust collection assembly 15 is fixed on the inner wall of the bottom of the first table board 1 through a bolt, a chip collection box 3 is connected to the outer wall of one side of the dust collection assembly 15 through a pipeline, a rotary tool rest 33 is rotatably connected to the inner wall of the chip collection box 3, and a placement groove 4 is formed in the outer wall of the top 02; because the mistake can appear in the in-process of drawing, consequently need erase with the rubber, can provide the adsorption affinity through being provided with dust absorption assembly 15 to utilize and inhale bits box 4 and absorb the residue on drawing paper surface, dust absorption assembly 15 can be for equipment such as air exhauster, utilize atmospheric pressure to make rotary knife rest 33 rotate under the effect of wind power with the in-process that the residue was absorbed, rotary knife rest 33 surface is provided with more than two blades simultaneously, can cut the breakage to absorbent residue, improves the throughput to the residue.

For illumination purposes; as shown in fig. 3 and 5, a sliding seat 12 is fixed on the outer wall of one side of the drawing board 2 through bolts, the inner wall of the sliding seat 12 and the outer wall of the top of the L-shaped bracket 21 are both connected with an illuminating lamp 23 in a sliding manner, and two expansion boards 19 are connected on the inner wall of one side of the first table board 1 in a sliding manner; can be used for illuminating the upper surface of

drawing board

2 and 1 top outer wall of table through being provided with two light 23, can improve the accuracy when drawing, set up light 23 simultaneously to can the portable illumination zone that can freely adjust light 23, light 23 sets up to the pattern of can buckling wantonly, the target nature of illumination has further been improved, utilize expansion plate 19 simultaneously can seal the space of 1 inside of table when using, can make drawing board 2 make 1 surface of table can temporarily form a complete plane after rotating certain angle, make the user can utilize 1 surface of table to draw, can effectively avoid debris to drop to 1 inside of table simultaneously.

When the device is used, firstly, the device is moved to a drawing place by using the universal wheel 14, then the height of the first table board 1 is adjusted by using the telescopic column 13, then the drawing board 2 is rotated along the first table board 1 through the hinge, then the first connecting rod 11 and the second connecting rod 18 are clamped and fixed by using the clamping block 29 and the first spring 30, then the rotating screw 17 drives the moving seat 32 to slide along the inner wall of the supporting frame 16, so that the angle between the drawing board 2 and the first table board 1 is adjusted and limited, then the rotating plate 5 is rotated according to the rotating angle of the drawing board 2, the paper placing plate 6 is rotated to a certain angle, when the drawing paper needs to be cut, the drawing paper is separated from the circumferential outer wall of the winding roller 38, then the drawing paper is cut by using the blade 36, then the cut drawing paper is placed on the surface of the protection plate 24, then through rotating L type support 21 along spacing post 27 circumference outer wall, make two clamp plates 25 move drawing paper upper portion, it is fixed to rotate two screw rods 22 and make clamp plate 25 carry out the crimping to the drawing paper surface after that, utilize drawing instrument to carry out the drawing operation after that, the drawing in-process, after meetting the mistake, utilize dust absorption assembly 15 and inhale bits box 4 to collect the residue on drawing paper surface, thereby can effectively handle the incomplete bits after wiping the rubber, can utilize bin 8 to deposit the drawing paper after the drawing finishes.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The drawing device for the mechanical design is convenient to use, comprises a first table plate (1) and is characterized in that the outer wall of one side of the first table plate (1) is rotatably connected with a rotating plate (5) through a rotating shaft, a stop block (9) is fixed on the outer wall of one side of the first table plate (1) through a bolt, a paper placing plate (6) is connected on the outer wall of one side of the rotating plate (5) through a hinge, a clamping plate (10) is rotatably connected on the outer wall of the bottom of the rotating plate (5), a fixing frame (37) is fixed on the outer wall of the top of the paper placing plate (6) through a screw, a hollow frame (34) is rotatably connected on the inner wall of the fixing frame (37), two springs (35) are clamped on the inner wall of the hollow frame (34), one end, far away from the hollow frame (34), of the two springs (35) is clamped with the same blade (36), and, the paper is placed board (6) inner wall joint and is had spring three (40), the one end joint that board (6) was placed to the paper was kept away from in spring three (40) has backup pad one (39), the paper is placed board (6) top outer wall and is had backup pad two (42) through the bolt fastening, backup pad two (42) one side outer wall and backup pad one (39) one side outer wall all rotate and are connected with rotation screens dish (43), two rotation screens dish (43) one end joint has same winding roller (38).

2. The drawing device for mechanical design convenient to use according to claim 1, wherein the top outer wall of the first table board (1) is connected with the drawing board (2) through a hinge, the top outer wall of the drawing board (2) is provided with an oblique groove (20), the inner wall of the oblique groove (20) is fixed with a limiting column (27) through a bolt, the circumference outer wall of the limiting column (27) is slidably connected with an L-shaped bracket (21), the top outer wall of the L-shaped bracket (21) is rotatably connected with two screw rods (22), the bottom outer walls of the two screw rods (22) are rotatably connected with a pressing plate (25) through a bearing, the top outer walls of the two pressing plates (25) are respectively fixed with two guide columns (26) through bolts, and the top outer wall of the drawing board (2) is fixed with a protection plate (24) through.

3. The drawing device convenient to use and used for mechanical design as claimed in claim 2, wherein a support frame (16) is fixed to the inner wall of the first table board (1) through bolts, a lead screw (17) is connected to the inner wall of the support frame (16) in a rotating mode, a moving seat (32) is connected to the inner wall of the support frame (16) in a sliding mode, a second connecting rod (18) is connected to the inner wall of the moving seat (32) in a rotating mode, a slot (31) is formed in the outer wall of one side of the second connecting rod (18), a first spring (30) is connected to the outer wall of the top of the second connecting rod (18) in a clamping mode, a clamping block (29) is connected to one end, far away from the second connecting rod (18), of the first spring (.

4. The drawing device convenient to use and used for mechanical design as claimed in claim 2, wherein a first connecting rod (11) is rotatably connected to the outer wall of one side of the drawing board (2), inserting holes (28) are formed in the outer wall of the top of the first connecting rod (11) and the outer wall of the top of the second connecting rod (18), and a base plate (7) is fixed to the inner wall of one side of the first table board (1) through bolts.

5. The drawing device for mechanical design convenient to use according to claim 1, wherein the outer wall of the bottom of the first table board (1) is fixed with a telescopic column (13) through bolts, and the outer wall of the bottom of the telescopic column (13) is rotatably connected with universal wheels (14).

6. A user-friendly mechanical design drawing device as claimed in claim 5, wherein the outer wall of the first table board (1) is slidably connected with a storage box (8).

7. The drawing device for mechanical design convenient to use according to claim 1, wherein a dust suction assembly (15) is fixed on the inner wall of the bottom of the first table board (1) through bolts, and a dust suction box (3) is connected to the outer wall of one side of the dust suction assembly (15) through a pipeline.

8. A convenient-to-use drawing device for mechanical design according to claim 7, characterized in that the inner wall of the chip suction box (3) is rotatably connected with a rotary tool holder (33), and the outer wall of the top 02 is provided with a placing groove (4).

9. The drawing device for mechanical design of claim 2, wherein the outer wall of one side of the drawing board (2) is fixed with a sliding seat (12) through a bolt, and the inner wall of the sliding seat (12) and the outer wall of the top of the L-shaped bracket (21) are both connected with an illuminating lamp (23) in a sliding way.

10. A user-friendly drawing device for mechanical design as claimed in claim 1 wherein said first table board (1) has two telescoping boards (19) slidably attached to the inner wall of one side.