CN211592000U

CN211592000U - High-precision drawing instrument for mathematical modeling

Info

Publication number: CN211592000U
Application number: CN201922236870.XU
Authority: CN
Inventors: 吕宁
Original assignee: LANZHOU UNIVERSITY OF FINANCE AND ECONOMICS
Current assignee: LANZHOU UNIVERSITY OF FINANCE AND ECONOMICS
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-29
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to a high-precision drawing instrument for mathematical modeling, belonging to the technical field of drawing teaching aids; the support is fixedly connected with an air cylinder, a pushing end of the air cylinder is fixedly connected with a moving seat, fixed plates are symmetrically and fixedly connected to the moving seat left and right, a motor is fixedly connected to the left side of the fixed plate on the left side, the motor penetrates through the fixed plates and is fixedly connected with a lead screw, a bearing is embedded and fixed on the inner wall of the fixed plate on the right side, the right end of the lead screw is inserted and fixed in the bearing, a moving block penetrates through the lead screw in a rotating mode through threads, a supporting rod is fixedly connected to the moving block, a supporting block penetrates through the supporting rod, guide rods are symmetrically and fixedly connected to the front and back of the fixed; the blackboard moves by driving the chalk, so that a function curve is drawn on the blackboard, the drawing time of a teacher in the teaching process is shortened, and the teaching efficiency of the teacher is improved.

Description

High-precision drawing instrument for mathematical modeling

Technical Field

The utility model relates to a drawing teaching aid technical field, concretely relates to high accuracy plotter of mathematical modeling.

Background

The mathematical modeling is the whole process of establishing a mathematical model by explaining actual problems through results obtained by calculation and accepting actual inspection; when a practical problem needs to be analyzed and researched from a quantitative perspective, people need to use mathematical symbols and languages for expression to establish a mathematical model on the basis of the work of deep investigation and research, object information understanding, simplified assumption making, internal rule analysis and the like; at present, in order to calculate mathematical modeling, various function curves need to be involved, the drawing time in a classroom is urgent and inaccurate, coordinate points and function values are difficult to express accurately, and when the function curves are drawn, the drawing precision is low, so that the teaching quality is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a reasonable in design's mathematical modeling's high accuracy plotter, move at the blackboard through driving the chalk to draw the function curve on the blackboard, reduced the drawing time of mr at the teaching in-process, thereby improved mr's teaching efficiency.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the chalk holder comprises a chalk holder and chalk, the chalk is inserted in the chalk holder, the chalk holder further comprises a base, a support, a moving seat, a moving block and a support block, the support is fixedly connected to the base, the support is arranged on the support, an air cylinder is fixedly connected to the support, the moving seat is fixedly connected to the pushing end of the air cylinder, the bottom of the moving seat is fixedly connected with a sliding block, a sliding groove is formed in the support, the sliding block is arranged in the sliding groove in a left-right sliding mode, fixed plates are fixedly connected to the moving seat in a left-right symmetrical mode, a motor is fixedly connected to the left side of the fixed plate on the left side, the motor penetrates through the fixed plates, a lead screw is fixedly connected to the lead screw, a bearing is fixedly embedded and arranged on the inner wall of the fixed plate on the right side, the right, the moving block is arranged on the sliding rail in a left-right sliding mode through a groove body at the bottom of the moving block, a support rod is fixedly connected to the moving block, a support block penetrates through the support rod, guide rods are symmetrically and fixedly connected to a fixing plate located on the left side of the moving block in a front-back mode and penetrate through the support block, the two guide rods are symmetrically arranged on the front side and the rear side of the support rod, and the pen cap is fixed to the rear side of the support block; the cylinder is connected with an external air source, and the first motor is connected with an external power supply.

Further, the support on be provided with the fluting, the bottom fixedly connected with of support props up a piece, a piece activity sets up in the fluting, a side fixedly connected with rack of piece, the front side fixedly connected with motor of support two, the rear side output shaft of motor two passes behind the preceding curb plate of support, set up in the fluting, fixedly connected with pivot on the output shaft, the cover is established in the pivot and is fixed with the gear, gear and rack toothing sets up, the spacing groove has all been seted up on the wall of both sides around the fluting, the equal fixedly connected with stopper in both sides around a piece, the stopper slides from top to bottom and sets up at the spacing inslot, motor two is connected with external power source.

Further, the support on the bilateral symmetry seted up the guide way, the bottom fixedly connected with of support corresponds the bracing piece that sets up with the guide way, the bracing piece activity sets up in the guide way, on the upper surface of guide way and the equal fixedly connected with boss in bottom of bracing piece, one side of boss is provided with spacing seat through the articulated shaft is articulated, the cover is established on the cylinder of two spacing seats from top to bottom and is fixed with the spring.

Furthermore, a bump is fixedly connected to the right end of the guide rod.

Furthermore, the top end of the supporting rod is fixedly connected with a bulge.

After the structure is adopted, the beneficial effects of the utility model are that: the utility model discloses in a high accuracy plotter of mathematical modeling, move at the blackboard through driving the chalk to draw the function curve on the blackboard, reduced the plotting time of mr at the teaching in-process, thereby improved mr's teaching efficiency.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a cross-sectional view of the present invention.

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

Fig. 5 is a schematic view of the connection between the middle support block and the gear of the present invention.

Description of reference numerals:

the chalk sleeve comprises a pen cap 1, chalk 2, a base 3, a support 4, a groove 4-1, a limiting groove 4-2, a guide groove 4-3, a support 5, a sliding groove 5-1, a moving seat 6, a moving block 7, a supporting block 8, an air cylinder 9, a sliding block 10, a fixing plate 11, a first motor 12, a screw rod 13, a sliding rail 14, a supporting rod 15, a guide rod 16, a supporting block 17, a rack 18, a second motor 19, a gear 20, a limiting block 21, a supporting rod 22, a boss 23, a limiting seat 24, a spring 25, a bump 26 and a protrusion 27.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the following technical solutions are adopted in the present embodiment: the chalk holder comprises a chalk holder 1 and chalk 2, the chalk 2 is inserted in the chalk holder 1, the chalk holder further comprises a base 3, a support 4, a support 5, a moving seat 6, a moving block 7 and a support block 8, the support 4 is welded and fixed on the base 3, the support 5 is arranged on the support 4, a slot 4-1 is arranged on the support 4, a support block 17 is welded and fixed at the bottom of the support 5, the support block 17 is movably arranged in the slot 4-1, a rack 18 is welded and fixed at one side of the support block 17, a second motor 19 with the model of 60KTYZ is fixed at the front side of the support 4 by screws, a rear output shaft of the second motor 19 penetrates through a front side plate of the support 4 and is arranged in the slot 4-1, a rotating shaft is welded and fixed on the output shaft, a gear 20 is sleeved and fixed on the rotating shaft, the gear 20 is meshed with the rack 18, limiting grooves 4-2 are arranged on the, the front side and the rear side of the support block 17 are respectively welded and fixed with a limiting block 21, the limiting blocks 21 are arranged in a limiting groove 4-2 in a vertical sliding manner, a second motor 19 rotates to drive a gear 20 to rotate, so that the gear meshes to drive the rack 18 to move, the support block 17 is driven to move in the vertical direction, the support 5 is driven to move, guide grooves 4-3 are symmetrically arranged on the left and right of the support 4, a support rod 22 corresponding to the guide groove 4-3 is fixedly welded at the bottom of the support 5, the support rod 22 is movably arranged in the guide groove 4-3, bosses 23 are respectively welded and fixed on the upper surface of the guide groove 4-3 and the bottom of the support rod 22, limiting seats 24 are hinged at the inner sides of the bosses 23 through hinge shafts, springs 25 are fixedly sleeved on the columns of the upper limiting seat 24 and the lower limiting seat 24, when the support block 17 drives the support 5, the support and guide operation is carried out through the support rod 22, and the damping effect is achieved through the spring 25, so that the stability of the support 5 is ensured; an air cylinder 9 with the model number of TN20 is fixed on a support 5 by screws, a moving seat 6 is fixed on the pushing end of the air cylinder 9 in a welding way, a slide block 10 is fixed on the bottom of the moving seat 6 in a welding way, a slide groove 5-1 is arranged on the support 5, the slide block 10 is arranged in the slide groove 5-1 in a left-right sliding way, a fixed plate 11 is symmetrically fixed on the moving seat 6 in a left-right welding way, a first motor 12 with the model number of 60KTYZ is fixed on the left side of the fixed plate 11 on the left side by screws, a lead screw 13 is fixed on the fixed plate 12 in a welding way after passing through the fixed plate 11, a bearing is embedded and fixed on the inner wall of the fixed plate 11 on the right side, the right end of the lead screw 13 is fixedly inserted in the bearing, a moving block 7 is arranged on the lead screw 13 in a penetrating way through screw threads in a rotating way, a slide rail 14, a supporting rod 15 is fixedly welded on the moving block 7, a supporting block 8 penetrates through the supporting rod 15, a protrusion 27 is fixedly welded at the top end of the supporting rod 15, the supporting block 8 is limited through the protrusion 27, guide rods 16 are symmetrically and fixedly welded on a fixing plate 11 on the left side of the moving block 7 in a front-back mode, the guide rods 16 penetrate through the supporting block 8, the two guide rods 16 are symmetrically arranged on the front side and the rear side of the supporting rod 15, the pen cap 1 is fixed on the rear side of the supporting block 8 through sealant in an adhesive mode, a bump 26 is fixedly welded at the right end of each guide rod 16, and the supporting block 8 is limited through the bump 26 arranged at the right end of each; the cylinder 9 is connected with an external air source through an air pipe, and the first motor 12 and the second motor 19 are connected with the external power source through power wires.

The working principle of the specific embodiment is as follows: when the device is used, the chalk sleeve 1 is fixed on the supporting block 8, the supporting block 8 is moved by moving to drive the chalk 2 to draw a function curve on the blackboard, the moving seat 6 is driven by the air cylinder 9 to move in the left and right directions so as to drive the supporting block 8 to move along with the chalk, the lower position of the chalk 2 in the left and right directions is changed, the gear 20 is driven to rotate by the rotation of the second motor 19, the gear 20 is meshed with the rack 18 to move in the up and down directions so as to drive the supporting block 17 to move, the support 5 is driven to move along with the supporting block 8, the chalk 2 is driven to move, the position of the chalk 2 in the up and down directions is changed, the first motor 12 is rotated to drive the screw rod 13 to rotate, the moving block 7 is driven to move in the left and right directions, the supporting rod 15 is driven to move, and the supporting rod 15 is, the supporting block 8 is driven to move, so that the chalk 2 is driven to move, the chalk 2 is arranged on a drawing line on the blackboard, and the supporting block 8 is guided and limited through the guide rod 16 in the moving process, so that the stability of the supporting block 8 in the moving process is enhanced; when the gear 20 drives the supporting block 17 to move up and down, the supporting seat 5 is supported by the supporting rod 22, the supporting rod 22 slides in the guide groove 4-3, the supporting rod 22 is supported by the spring 25 at the bottom, and meanwhile, the damping effect is achieved, and the stability of the supporting seat 5 is guaranteed.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:

1. the first motor 12 rotates to drive the screw rod 13 to rotate and drive the moving block 7 to move, so that the supporting block 8 is driven to move, the chalk 2 moves on the blackboard to draw lines, and the supporting block 8 performs guiding and limiting operation through the guide rod 16 in the moving process;

2. the supporting block 17 is arranged at the bottom of the support 5, the gear 20 is driven to rotate through the rotation of the second motor 19, the gear 20 is meshed with the rack 18 to move up and down, so that the supporting block 17 is driven to move up and down, the support 5 is driven to move, the chalk 2 is driven to move, and the position of putting the chalk 2 is changed;

3. when the support 5 is driven to move by the movement of the support block 17 in the up-down direction, the support 5 is supported and guided by the support rod 22, and the spring 25 at the bottom of the support rod 22 supports the support rod 22 and has a damping effect.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a high accuracy plotter of mathematical modeling, it contains pen socket (1), chalk (2), and pen socket (1) interpolation is equipped with chalk (2), its characterized in that: the device also comprises a base (3), a support (4), a support (5), a moving seat (6), a moving block (7) and a support block (8), wherein the support (4) is fixedly connected on the base (3), the support (5) is arranged on the support (4), an air cylinder (9) is fixedly connected on the support (5), the moving seat (6) is fixedly connected on the pushing end of the air cylinder (9), a sliding block (10) is fixedly connected at the bottom of the moving seat (6), a sliding groove (5-1) is arranged on the support (5), the sliding block (10) is arranged in the sliding groove (5-1) in a left-right sliding manner, a fixed plate (11) is fixedly connected on the moving seat (6) in a left-right symmetrical manner, a first motor (12) is fixedly connected on the left side of the fixed plate (11) on the left side, a lead screw (13) is fixedly connected after the first motor (12) passes through the fixed plate, the right end of a lead screw (13) is fixedly inserted into the bearing, a moving block (7) penetrates through the lead screw (13) through thread rotation, a sliding rail (14) is fixedly connected onto a moving seat (6), the sliding rail (14) is arranged between a left fixing plate and a right fixing plate (11), the moving block (7) is arranged on the sliding rail (14) through a groove body at the bottom of the moving block in a left-right sliding mode, a supporting rod (15) is fixedly connected onto the moving block (7), a supporting block (8) penetrates through the supporting rod (15), guide rods (16) are symmetrically and fixedly connected onto the fixing plate (11) on the left side of the moving block (7) in the front-back mode, the guide rods (16) penetrate through the supporting block (8), the two guide rods (16) are symmetrically arranged on the front side and the back side of the supporting rod (; the cylinder (9) is connected with an external air source, and the first motor (12) is connected with an external power supply.

2. A mathematically modeled high accuracy plotter as claimed in claim 1, wherein: the support (4) is provided with a slot (4-1), the bottom of the support (5) is fixedly connected with a support block (17), the support block (17) is movably arranged in the slot (4-1), one side of the support block (17) is fixedly connected with a rack (18), the front side of the support (4) is fixedly connected with a second motor (19), the rear output shaft of the second motor (19) penetrates through the front side plate of the support (4) and is arranged in the slot (4-1), the output shaft is fixedly connected with a rotating shaft, a gear (20) is fixedly sleeved on the rotating shaft, the gear (20) is meshed with the rack (18), the front side wall and the rear side wall of the slot (4-1) are respectively provided with a limit slot (4-2), the front side and the rear side of the support block (17) are respectively and fixedly connected with a limit block (21), the limit block (21) is arranged in the limit slot (4-, the second motor (19) is connected with an external power supply.

3. A mathematically modeled high accuracy plotter as claimed in claim 1, wherein: the support (4) on the bilateral symmetry seted up guide way (4-3), the bottom fixedly connected with of support (5) corresponds bracing piece (22) that sets up with guide way (4-3), bracing piece (22) activity sets up in guide way (4-3), equal fixedly connected with boss (23) in the bottom of the upper surface of guide way (4-3) and bracing piece (22), one side of boss (23) is provided with spacing seat (24) through the articulated shaft is articulated, the cover is established and is fixed with spring (25) on the cylinder of two spacing seats (24) from top to bottom.

4. A mathematically modeled high accuracy plotter as claimed in claim 1, wherein: the right end of the guide rod (16) is fixedly connected with a lug (26).

5. A mathematically modeled high accuracy plotter as claimed in claim 1, wherein: the top end of the supporting rod (15) is fixedly connected with a bulge (27).