CN112572031A

CN112572031A - Drawing tool for mathematical modeling

Info

Publication number: CN112572031A
Application number: CN202011584040.7A
Authority: CN
Inventors: 谢文昊; 王小燕; 刘晓莉; 郝修清; 吕伟; 郭乔
Original assignee: Xian Shiyou University
Current assignee: Xian Shiyou University
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-03-30

Abstract

The invention provides a drawing tool for mathematical modeling, and relates to the technical field of teaching equipment; the fixed column is provided with a support column in a screwed connection mode through a bearing, the upper end of the support column is connected and fixed with the bottom of the support, a gear ring is fixed at the bottom of the support, the gear ring is arranged on the periphery of the support column, teeth are fixed on the inner ring wall of the gear ring, a rotating motor is fixed on a fixed seat, the rotating motor is arranged between the fixed column and the gear ring, a rotating shaft is fixed on an output shaft of the rotating motor, a guide gear is sleeved and fixed on the rotating shaft, the guide gear is meshed with the teeth, an arc-shaped guide groove is formed in the fixed seat, the arc-shaped guide groove is arranged on the periphery of the rotating motor, a plurality of guide blocks are fixed at the bottom of the gear ring, the plurality of; the pen can be driven to move within a certain range, so that required graphs are drawn, the operation steps of searching for auxiliary tools are reduced, and the modeling speed and accuracy are improved.

Description

Drawing tool for mathematical modeling

Technical Field

The invention relates to the technical field of teaching equipment, in particular to a drawing tool for mathematical modeling.

Background

The mathematical modeling is to establish a mathematical model, can use drawing, listing and searching for equivalent relation to model, generally means to convert an actual problem into a purely mathematical problem, and a drawing tool is used in the mathematical modeling process, so that people can be helped to carry out standard mathematical modeling through the drawing tool, and the traditional hand-drawing has good practicability although a large amount of electronic drawing software exists nowadays; when carrying out manual drawing figure, need use a large amount of graphics primitive to supplementary completion drawing operation improves drawing quality, and it is loaded down with trivial details that the appurtenance need be changed among this operation process, has increased the time that mr seeks appurtenance, thereby has influenced the efficiency of modelling.

Disclosure of Invention

The invention aims to provide a drawing tool for mathematical modeling, which has a simple structure, is reasonable in design and convenient to use, can drive a pen to move within a certain range so as to draw a required graph, reduces the operation steps of searching for an auxiliary tool and improves the speed and the accuracy of modeling.

In order to achieve the purpose, the invention adopts the technical scheme that: the pen holder comprises a sucker, a fixed seat, a rotating mechanism, a support and a pen clamping mechanism, wherein the sucker is fixed at the bottom of the fixed seat, the support is arranged on the fixed seat, the rotating mechanism is arranged between the support and the fixed seat, a slot is formed in the support, and the pen clamping mechanism is arranged in the slot;

the rotating mechanism comprises a rotating motor, a fixed column, a support column and a gear ring, wherein the fixed column is fixed on a fixed seat, the support column is screwed on the fixed column through a bearing, the upper end of the support column is fixedly connected with the bottom of a support, the gear ring is fixed at the bottom of the support, the gear ring is arranged on the periphery of the support column, teeth are fixed on the inner ring wall of the gear ring, the rotating motor is fixed on the fixed seat, the rotating motor is arranged between the fixed column and the gear ring, a rotating shaft is fixed on an output shaft of the rotating motor, a guide gear is sleeved and fixed on the rotating shaft, the guide gear is meshed with the teeth, an arc-shaped guide groove is formed in the fixed seat, the arc-shaped guide groove is arranged on the periphery of the rotating motor, a plurality of guide blocks are fixed at the bottom of the gear;

the pen clamping mechanism comprises a driving motor, a screw rod, a sleeve, a support, a supporting block and a clamping block, wherein the driving motor is fixed on the inner wall of one side of a groove, the screw rod is fixed on an output shaft of the driving motor, the sleeve is screwed on the screw rod through threads, the other end of the sleeve is fixed with the support, the support is arranged in a U-shaped structure, the supporting block is fixed on the front horizontal end and the rear horizontal end in the support, a sliding block is fixed on one side of the supporting block, sliding grooves are formed in the inner walls of supports positioned on the front side and the rear side of the groove in a penetrating manner, the sliding block is arranged in the sliding grooves in a left-right sliding manner, a fixing sleeve is fixed on the other side of the supporting block, movable rods are symmetrically inserted in the fixing sleeve in the left-right direction, a plurality of first positioning holes are formed in the movable rods, a plurality of second positioning holes are formed, the exposed end is screwed with a nut through threads, a connecting block is fixed between the outer sides of the front movable rod and the rear movable rod on the same side, a clamping block is fixed on the inner wall of the connecting block, and the inner wall of the clamping block is in an arc-shaped structure;

the rotating motor and the driving motor are both connected with an external power supply.

Furthermore, the support is provided with a scale mark layer, so that the moving distance of the pen can be known, and the drawing size can be controlled.

Furthermore, an anti-friction layer is fixed on the inner wall of each clamping block, and the pen is arranged between the left clamping block and the right clamping block, so that the pen is protected through the anti-friction layer.

Further, the outer rampart of fixed column on seted up annular slot, the bottom of support is fixed with several and inserts the frame, insert the frame and set up between pillar and ring gear, it sets up for "L" shape structure to insert the frame, and the several is the fillet distribution setting such as between inserting the frame, vertical end in inserting the frame is fixed on the support, horizontal end in inserting the frame connects soon and inserts and establish in annular slot, the pillar is when rotating around the junction soon of its bottom, drive the support and rotate, then drive and insert the frame and rotate, insert the frame and carry out the direction support through annular slot.

Furthermore, the fixing base on connect soon through the bearing and be provided with the axis of rotation, the axis of rotation sets up between fixed column and ring gear, overlap on the axis of rotation and establish and be fixed with rotating gear, rotating gear sets up with the tooth meshing, the ring gear is rotating the in-process, with rotating gear meshing, rotating gear leads the ring gear.

Furthermore, the fixed base comprises a fixed base and a movable support, the fixed base is fixed on the sucker, a groove body is formed in the fixed base, a plurality of lifting cylinders are fixed in the groove body, the movable support is fixed on the pushing end at the upper end of each lifting cylinder, and the fixed column and the rotating motor are fixed on the movable support; the lifting cylinder is connected with an external power supply; the lifting cylinder drives the movable support to move up and down, so that the pen is driven to adjust up and down, and the pen point is in contact with the paper.

The working principle of the invention is as follows: firstly, placing a pen between a left clamping block and a right clamping block, limiting and fixing the pen through the clamping blocks, manually driving a movable rod to move in a fixed sleeve, penetrating a positioning stud into a first positioning hole and a second positioning hole after the clamping blocks are contacted with the pen, and screwing and limiting through nuts, so that the clamping blocks are fixed, and limiting and clamping the pen; according to the size of the graph to be drawn, the movable support is driven to move in the up-and-down direction by the starting of the driving motor, the sleeve is driven to push through the threads, so that the support moves, then the pen is driven to draw the graph on paper, when the pen moves to draw the graph, the sliding fit of the sliding block and the sliding groove is used for guiding, the rotating motor is started to drive the guide gear on the output end of the movable support to rotate, the guide gear is meshed with the teeth to drive the gear ring to rotate, so that the support drives the support to rotate around the rotary joint between the support and the fixed column, so that the pen rotates, the graph with an arc shape is drawn, when the support rotates, the support drives the inserting frame at the bottom of the support to rotate, the annular slot guides and supports the inserting frame, the movable support is driven to move in the up-and-down direction by the lifting cylinder, so that, until the nib makes contact with the paper.

After adopting the structure, the invention has the beneficial effects that:

1. the pen is clamped by the left arc-shaped clamping block and the right arc-shaped clamping block, so that the pen is fixed and cannot fall off;

2. the pen is driven to move by driving the support to move within a certain range, so that the graph is drawn;

3. the support is driven to rotate, so that the pen rotates, and the pen draws an arc-shaped graph;

4. the movable support is driven to move within a certain range, so that the pen point can be in contact with the paper.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a sectional view taken along line a-a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 3.

Fig. 5 is an enlarged view of the portion C in fig. 2.

Description of reference numerals:

the pen holder comprises a sucker 1, a fixed seat 2, a rotating mechanism 3, a rotating motor 3-1, a fixed column 3-2, an annular slot 3-2-1, a support 3-3, a gear ring 3-4, teeth 3-5, a guide gear 3-6, an arc guide groove 3-7, a guide block 3-8, a support 4, a slot 4-1, a sliding groove 4-2, a pen clamping mechanism 5, a driving motor 5-1, a screw rod 5-2, a sleeve 5-3, a support 5-4, a support block 5-5, a clamping block 5-6, a sliding block 5-7, a fixed sleeve 5-8, a movable rod 5-9, a first positioning hole 5-10, a second positioning hole 5-11, a positioning stud 5-12, a connecting block 5-13, a scale line layer 6, an anti-friction layer 7, an inserting frame 8, a first positioning hole, a, A rotating shaft 9, a rotating gear 10, a fixed base 11, a groove body 11-1, a movable support 12 and a lifting cylinder 13.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, the technical solution adopted by the present embodiment is: the pen holder comprises a sucker 1, a fixed seat 2, a rotating mechanism 3, a support 4 and a pen clamping mechanism 5, wherein the sucker 1 is fixedly adhered to the bottom of the fixed seat 2 by using an adhesive, the fixed seat 2 comprises a fixed base 11 and a movable support 12, the fixed base 11 is fixed on the sucker 1, a groove body 11-1 is formed in the fixed base 11, a plurality of lifting cylinders 13 are fixed in the groove body 11-1, the movable support 12 is fixed on the upper end pushing end of each lifting cylinder 13, the support 4 is arranged on the movable support 12, a scale mark layer 6 is arranged on the support 4, the rotating mechanism 3 is arranged between the support 4 and the fixed seat 2, a groove 4-1 is formed in the support 4, and the pen clamping mechanism 5 is arranged in the groove 4-;

the rotating mechanism 3 comprises a rotating motor 3-1, a fixed column 3-2, a strut 3-3 and a gear ring 3-4, the fixed column 3-2 is fixedly welded on a movable support 12, the strut 3-2 is rotatably connected with the fixed column 3-3 through a bearing, the bearing is embedded and fixedly welded on the fixed column 3-2, the strut 3-3 is inserted and fixed in the bearing, the upper end of the strut 3-3 is fixedly welded with the bottom of the support 4, the bottom of the support 4 is fixedly welded with the gear ring 3-4, the gear ring 3-4 is arranged on the periphery of the strut 3-3, the inner ring wall of the gear ring 3-4 is fixedly welded with a tooth 3-5, the rotating motor 3-1 with the model of 60KTYZ is fixed on the movable support 12 by utilizing a screw, the rotating motor 3-1 is arranged between the fixed column 3-2 and the gear ring 3-4, a rotating shaft is welded and fixed on an output shaft of a rotating motor 3-1, a guide gear 3-6 is sleeved and welded and fixed on the rotating shaft, the guide gear 3-6 is meshed with teeth 3-5, an arc guide groove 3-7 is arranged on a movable support 12, the arc guide groove 3-7 is arranged at the periphery of the rotating motor 3-1, a plurality of guide blocks 3-8 are welded and fixed at the bottom of a gear ring 3-4, the guide blocks 3-8 are distributed and arranged in an equal round angle, the guide blocks 3-8 are screwed and inserted in the arc guide groove 3-7, an annular slot 3-2-1 is arranged on the outer ring wall of a fixed column 3-2, a plurality of inserting frames 8 are welded and fixed at the bottom of the support 4, the inserting frames 8 are arranged between a support 3-3 and the gear ring 3-4, the inserting frames 8 are arranged in an L-shaped structure, the plurality of inserting frames 8 are distributed in an equi-fillet manner, the vertical ends of the inserting frames 8 are welded and fixed on the support 4, the horizontal ends of the inserting frames 8 are screwed and inserted in the annular slot 3-2-1, the movable support 12 is provided with a rotating shaft 9 through a bearing, the bearing is embedded and welded and fixed in the fixed seat 2, the rotating shaft 9 is inserted and welded and fixed in the bearing, the rotating shaft 9 is arranged between the fixed column 3-2 and the gear ring 3-4, the rotating shaft 9 is sleeved and welded and fixed with a rotating gear 10, and the rotating gear 10 is meshed with the teeth 3-5;

the pen clamping mechanism 5 comprises a driving motor 5-1, a screw rod 5-2, a sleeve 5-3, a bracket 5-4, a support block 5-5 and a clamping block 5-6, wherein the driving motor 5-1 with the model number of 60KTYZ is fixed on the inner wall of one side of a slot 4-1 by a screw, the screw rod 5-2 is fixedly welded on an output shaft of the driving motor 5-1, the sleeve 5-3 is spirally connected on the screw rod 5-2 through threads, the bracket 5-4 is fixedly welded at the other end of the sleeve 5-3, the bracket 5-4 is arranged in a U-shaped structure, the support block 5-5 is fixedly welded on the front horizontal end and the rear horizontal end in the bracket 5-4, a sliding block 5-7 is fixedly welded on one side of the support block 5-5, sliding grooves 4-2 are formed on the inner walls of support seats 4 positioned on the front side and the rear side of the slot 4-1, the sliding block 5-7 is arranged in the sliding groove 4-2 in a left-right sliding mode, the other side of the supporting block 5-5 is fixedly welded with a fixing sleeve 5-8, movable rods 5-9 are symmetrically inserted in the fixing sleeve 5-8 in a left-right mode, a plurality of first positioning holes 5-10 are formed in the movable rods 5-9, a plurality of second positioning holes 5-11 are formed in the fixing sleeve 5-8, positioning studs 5-12 penetrate through the second positioning holes 5-11 and the first positioning holes 5-10, the upper end and the lower end of each positioning stud 5-12 are exposed out of the fixing sleeve 5-8, nuts are screwed on the exposed ends through threads, a connecting block 5-13 is fixedly welded between the outer sides of the front movable rod 5-9 and the rear movable rod 5-9 on the same side, and a clamping block 5-6 is fixedly welded on the inner wall of the connecting, the inner walls of the clamping blocks 5-6 are arranged in an arc structure, and the inner walls of the clamping blocks 5-6 are fixedly adhered with an anti-friction layer 7 made of rubber materials by using an adhesive;

the rotating motor 3-1 and the driving motor 5-1 are both connected with an external power supply through power lines, and the lifting cylinder 13 is connected with an external air source through an air pipe.

The working principle of the specific embodiment is as follows: firstly, placing a pen between a left clamping block and a right clamping block 5-6, limiting and fixing the pen through the clamping blocks 5-6, manually driving a movable rod 5-9 to move in a fixed sleeve 5-8 until the clamping blocks 5-6 are contacted with the pen, penetrating positioning studs 5-12 into a first positioning hole 5-10 and a second positioning hole 5-11, and screwing and limiting through nuts, so that the clamping blocks 5-6 are fixed, and limiting and clamping the pen; according to the different sizes of the graphs to be drawn, the driving motor 5-1 is started to drive the screw rod 5-2 to rotate, the sleeve 5-3 is driven to push through the screw thread, so that the support 5-4 moves, and then the pen is driven to draw the graphs on the paper, when the pen moves to draw the graphs, the guide is carried out through the sliding fit of the slide block 5-7 and the chute 4-2, the rotating motor 3-1 is started to drive the guide gear 3-6 on the output end of the rotating motor to rotate, the guide gear 3-6 is meshed with the teeth 3-5 to drive the gear ring 3-4 to rotate, so that the support 4 drives the support 3-3 to rotate around the rotary joint between the support 3-3 and the fixed column 3-2, the pen is rotated to draw the graphs with arc shapes, when the support 4 rotates, the support drives the inserting frame 8 at the bottom of the support to rotate, the annular slot 3-2-1 guides and supports the inserting frame 8, and the lifting cylinder 13 is started to drive the movable support 12 to move up and down, so that the pen is driven to adjust up and down until the pen point is in contact with paper

After adopting above-mentioned structure, this embodiment beneficial effect does:

1. the pen is clamped by the left and right arc-shaped clamping blocks 5-6, so that the pen is fixed and does not fall off;

2. the support 5-4 is driven to move within a certain range, so that the pen is driven to move, and the graph is drawn;

3. the pen is rotated by driving the support 4 to rotate, so that the pen draws an arc-shaped graph;

4. the nib can contact the paper by driving the movable support 12 to move within a certain range.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A drawing tool for mathematical modeling, comprising: the pen holder comprises a sucker (1), a fixed seat (2), a rotating mechanism (3), a support (4) and a pen clamping mechanism (5), wherein the sucker (1) is fixed at the bottom of the fixed seat (2), the support (4) is arranged on the fixed seat (2), the rotating mechanism (3) is arranged between the support (4) and the fixed seat (2), a slot (4-1) is formed in the support (4), and the pen clamping mechanism (5) is arranged in the slot (4-1);

the rotating mechanism (3) comprises a rotating motor (3-1), a fixed column (3-2), a support column (3-3) and a gear ring (3-4), the fixed column (3-2) is fixed on the fixed seat (2), the support column (3-3) is arranged on the fixed column (3-2) in a screwed connection mode through a bearing, the upper end of the support column (3-3) is fixedly connected with the bottom of the support seat (4), the gear ring (3-4) is fixed at the bottom of the support seat (4), the gear ring (3-4) is arranged on the periphery of the support column (3-3), teeth (3-5) are fixed on the inner ring wall of the gear ring (3-4), the rotating motor (3-1) is fixed on the fixed seat (2), and the rotating motor (3-1) is arranged between the fixed column (3-2) and the gear ring (3-4, a rotating shaft is fixed on an output shaft of the rotating motor (3-1), a guide gear (3-6) is sleeved and fixed on the rotating shaft, the guide gear (3-6) is meshed with teeth (3-5), an arc-shaped guide groove (3-7) is formed in the fixed seat (2), the arc-shaped guide groove (3-7) is arranged on the periphery of the rotating motor (3-1), a plurality of guide blocks (3-8) are fixed at the bottom of the gear ring (3-4), the plurality of guide blocks (3-8) are distributed in an equal-fillet manner, and the guide blocks (3-8) are inserted in the arc-shaped guide groove (3-7) in a rotating manner;

the pen clamping mechanism (5) comprises a driving motor (5-1), a screw rod (5-2), a sleeve (5-3), a support (5-4), a support block (5-5) and a clamping block (5-6), wherein the driving motor (5-1) is fixed on the inner wall of one side of the open slot (4-1), the screw rod (5-2) is fixed on the output shaft of the driving motor (5-1), the sleeve (5-3) is screwed on the screw rod (5-2) through threads, the support (5-4) is fixed at the other end of the sleeve (5-3), the support (5-4) is arranged in a U-shaped structure, the support block (5-5) is fixed on each of the front horizontal end and the rear horizontal end in the support (5-4), and a sliding block (5-7) is fixed on one side of the support block (5-5), the inner walls of the supports (4) positioned at the front side and the rear side of the slot (4-1) are provided with sliding grooves (4-2) in a penetrating way, the sliding blocks (5-7) are arranged in the sliding grooves (4-2) in a left-right sliding way, the other side of the supporting blocks (5-5) is fixed with a fixed sleeve (5-8), movable rods (5-9) are symmetrically inserted in the fixed sleeve (5-8) in a left-right way, a plurality of first positioning holes (5-10) are arranged on the movable rods (5-9), a plurality of second positioning holes (5-11) are arranged in the fixed sleeve (5-8), positioning studs (5-12) are arranged in the second positioning holes (5-11) and the first positioning holes (5-10) in a penetrating way, and the upper and lower ends of the positioning studs (5-12) are exposed at the outer sides, the exposed end is screwed with a nut through threads, a connecting block (5-13) is fixed between the outer sides of the front movable rod (5) and the rear movable rod (9) on the same side, a clamping block (5-6) is fixed on the inner wall of the connecting block (5-13), and the inner wall of the clamping block (5-6) is arranged in an arc structure;

the rotating motor (3-1) and the driving motor (5-1) are connected with an external power supply.

2. A drawing tool for mathematical modeling according to claim 1, wherein: the support (4) on be provided with scale mark layer (6), can know the distance that the pen removed, control drawing size.

3. A drawing tool for mathematical modeling according to claim 1, wherein: an anti-friction layer (7) is fixed on the inner wall of each clamping block (5-6), and the pen is arranged between the left clamping block and the right clamping block (5-6), so that the pen is protected by the anti-friction layer (7).

4. A drawing tool for mathematical modeling according to claim 1, wherein: the outer annular wall of the fixed column (3-2) is provided with an annular slot (3-2-1), the bottom of the support (4) is fixedly provided with a plurality of inserting frames (8), the inserting frames (8) are arranged between the support column (3-3) and the gear ring (3-4), the inserting frames (8) are arranged in an L-shaped structure, the inserting frames (8) are distributed and arranged in an equiangular manner, the vertical end of each inserting frame (8) is fixed on the support (4), the horizontal end of each inserting frame (8) is rotatably inserted into the annular slot (3-2-1), when the support column (3-3) rotates around the rotary connection point at the bottom of the support column, the support column (4) is driven to rotate, the inserting frames (8) are driven to rotate, and the inserting frames (8) are guided and supported through the annular slot (3-2-1).

5. A drawing tool for mathematical modeling according to claim 1, wherein: the fixed seat (2) is provided with a rotating shaft (9) in a screwed connection mode through a bearing, the rotating shaft (9) is arranged between the fixed column (3-2) and the gear ring (3-4), the rotating shaft (9) is sleeved and fixed with a rotating gear (10), the rotating gear (10) is meshed with the teeth (3-5), the gear ring (3-4) is meshed with the rotating gear (10) in the rotating process, and the rotating gear (10) guides the gear ring (3-4).

6. A drawing tool for mathematical modeling according to claim 1, wherein: the fixing seat (2) comprises a fixing base (11) and a movable support (12), the fixing base (11) is fixed on the sucker (1), a groove body (11-1) is formed in the fixing base (11), a plurality of lifting cylinders (13) are fixed in the groove body (11-1), the movable support (12) is fixed on the upper end pushing end of each lifting cylinder (13), and the fixing column (3-2) and the rotating motor (3-1) are fixed on the movable support (12); the lifting cylinder (13) is connected with an external power supply; the lifting cylinder (13) drives the movable support (12) to move up and down, so that the pen is driven to adjust up and down, and the pen point is in contact with paper.

7. A drawing tool for mathematical modeling according to claim 1, wherein: the working principle is as follows: firstly, placing a pen between a left clamping block and a right clamping block (5-6), limiting and fixing the pen through the clamping blocks (5-6), manually driving a movable rod (5-9) to move in a fixed sleeve (5-8), penetrating a positioning stud (5-12) into a first positioning hole (5-10) and a second positioning hole (5-11) after the clamping blocks (5-6) are contacted with the pen, screwing and limiting through a nut, so that the clamping blocks (5-6) are fixed, and limiting and clamping the pen; according to different sizes of the patterns to be drawn, the screw rod (5-2) is driven to rotate by starting the driving motor (5-1), the sleeve (5-3) is driven to push by the screw thread, so that the support (5-4) moves, then the pen is driven to draw the patterns on the paper, when the pen moves to draw the patterns, the guide is carried out by the sliding fit of the sliding block (5-7) and the sliding groove (4-2), the guide gear (3-6) on the output end of the pen is driven to rotate by starting the rotating motor (3-1), the guide gear (3-6) is meshed with the teeth (3-5) to drive the gear ring (3-4) to rotate, so that the support (4) drives the support (3-3) to rotate around the rotary joint point between the support (3-3) and the fixed column (3-2), thereby rotating the pen to draw the figure with the arc shape.