Mechanical arm lifting mechanism

Abstract

The utility model relates to the technical field of teaching aids, in particular to a mechanical arm lifting mechanism which comprises a supporting bottom plate, a stand column, a pointing guide plate and a tail end mechanical arm assembly, and the distance between the tail end mechanical arm assembly and the stand column can be changed by arranging the pointing guide plate capable of being movably adjusted. According to the mechanical arm lifting mechanism, the mechanical arm lifting mechanism can lift objects at different distances, so that the operation range of the mechanical arm lifting mechanism is widened, the angle pointing to the guide plate can be adjusted by arranging the rotatable adjusting plate, and the position of the tail end mechanical arm assembly can be changed; and the pointing guide plate is matched to adjust the horizontal position of the tail end mechanical arm assembly, so that the operation range of the mechanical arm lifting mechanism is larger, and the coverage range of the mechanical arm lifting mechanism for teaching display is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching auxiliary tools, in particular to a mechanical arm lifting mechanism. Background Art

[0002] In modern education, in order to improve teaching effectiveness and attract students' attention, teachers usually display real objects or models, such as showing different parts of plants, displaying three-dimensional models, etc. By using real objects or models for display, students can observe and learn, thereby helping students to better learn related concepts and help students to better verify theories. When teachers display real objects or models, they usually use a robotic arm lifting mechanism to lift the real objects or models to be exhibited to a certain height through the robotic arm lifting mechanism, so as to facilitate students to observe.

[0003] However, the existing mechanical arm lifting mechanism has certain defects during use. The existing mechanical arm lifting mechanism has a complex structure, is inconvenient to install and maintain, and is not convenient to use in the classroom. At the same time, it cannot be folded, occupies a large space, and is inconvenient to transport and store. The existing mechanical arm lifting mechanism can realize vertical adjustment, and cannot perform lifting operations on objects at different distances. The operating range is small, and the display area is also small. The existing mechanical arm lifting mechanism cannot flexibly adjust the angle of the display object, and thus cannot display the teaching objects at multiple angles, thereby reducing the teaching effect of the displayed objects. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a mechanical arm lifting mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a mechanical arm lifting mechanism, including a supporting base plate, a column, a pointing guide plate and an end mechanical arm assembly, the column is vertically fixed on the top of the supporting base plate, and a lifting plate is provided on the column for lifting and lowering. The cross section of the lifting plate is an "L"-shaped structure, and the side of the lifting plate is rotatably matched with an adjustment plate with a "T"-shaped cross section. The pointing guide plate is movably matched on the adjustment plate, and the end mechanical arm assembly is installed at the end of the pointing guide plate. The mechanical arm lifting mechanism has a simple and compact structure, occupies a small space, is easy to install and maintain, and is convenient for teachers to use in the classroom. By setting the supporting base plate, the column is vertically fixed on the supporting base plate, which can stably support the entire lifting mechanism, improve safety and stability, and realize height adjustment through the column and the lifting plate. The lifting method is simple , convenient for control, by setting a movable and adjustable pointing guide plate, the distance between the end mechanical arm assembly and the column can be changed, so that the mechanical arm lifting mechanism can lift objects at different distances, and by setting a rotatable adjustment plate, the angle of the pointing guide plate can be adjusted. In this way, on the one hand, by adjusting the angle of the pointing guide plate, the position of the end mechanical arm assembly can be changed, and the adjustment of the horizontal position of the end mechanical arm assembly by the pointing guide plate can make the mechanical arm lifting mechanism have a wider range of operation. On the other hand, the pointing guide plate can be adjusted to a state parallel to the column, and the width of the mechanical arm lifting mechanism can be reduced, so that the mechanical arm lifting mechanism can be used in a smaller space. In addition, by rotating the adjustment plate, the pointing guide plate is adjusted to a state parallel to the column, so that the volume of the mechanical arm lifting mechanism is smaller;

[0006] The end mechanical arm assembly comprises a connecting frame, a force arm and a hanging plate fixed to the pointing guide plate, one end of the force arm is hinged to the connecting frame, and the other end of the force arm is hinged with a steering head, a hollow hanging rod is fixed to the bottom of the steering head, the hanging plate is rotatably fitted at the bottom end of the hanging rod, and a plurality of suction cups are installed at the bottom of the hanging plate, a suction cup is arranged in the end mechanical arm assembly in the mechanical arm lifting mechanism, and objects are adsorbed by the suction cup, and the force arm and the steering head in the end mechanical arm assembly can be rotatably adjusted, and the position and angle of the objects adsorbed by the suction cup can be adjusted, so that on the one hand, it can adapt to the adsorption requirements of objects of different shapes, sizes and weights, and improve the applicability and flexibility of the mechanical arm, and on the other hand, it can display teaching objects at multiple angles, wherein the hanging plate is rotatably fitted at the bottom end of the hanging rod and can be rotatably adjusted, thereby driving the objects adsorbed by the suction cup to be steered and adjusted, and with the adjustment of the force arm and the steering head, the angle of the displayed objects can be adjusted more flexibly.

[0007] Preferably, a first guide rail is vertically welded on one side and one end of the column, a first tooth plate is vertically welded on one side of the column, first sliders slidingly matched with the first guide rail are welded on both sides of the lifting plate close to the column, a first gear meshing with the first tooth plate is rotatably matched on one side of the lifting plate close to the first tooth plate, and a first motor driving the first gear to rotate is horizontally installed on the side of the lifting plate away from the first gear.

[0008] Preferably, a rotating shaft is provided on one side of the adjustment plate close to the lifting plate, and the adjustment plate rotates on the side of the lifting plate by the rotating shaft. A steering drive motor is horizontally installed on the side of the adjustment plate, and the output shaft of the steering drive motor is connected to the fixed rotating shaft.

[0009] Preferably, the adjustment plate of the "T"-shaped structure is composed of a vertical plate and a horizontal plate welded together, a second slider is welded to the side of the vertical plate in the adjustment plate, the top of the horizontal plate in the adjustment plate is rotatably matched with the second gear, a second motor that drives the second gear to rotate is vertically installed at the bottom of the horizontal plate in the adjustment plate, a second guide rail that slides with the second slider is horizontally welded to the side of the pointing guide plate, and a second tooth plate that meshes with the second gear is horizontally welded to the bottom of the pointing guide plate.

[0010] Preferably, a rotating shaft is provided on the connecting frame, the force arm is hinged to the connecting frame through the rotating shaft, a third motor is installed on the side of the connecting frame, and the output end of the third motor is fixedly connected to the rotating shaft.

[0011] Preferably, a guide rod is hinged at one end of the force arm close to the connecting frame, the axis of rotation of the guide rod on the force arm coincides with the axis of rotation of the force arm on the connecting frame, a fourth motor for driving the guide rod to rotate is installed on the side of the connecting frame, and the end of the guide rod away from the connecting frame is hinged to the upper part of the steering head.

[0012] Preferably, a fifth motor is installed on the top of the steering head, the fifth motor is connected to a rotating rod, the rotating rod is rotatably fitted in the suspension rod, and the bottom of the rotating rod is connected to the top of the suspension plate.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model discloses a mechanical arm lifting mechanism, which has a simple and compact structure, occupies a small space, is easy to install and maintain, and is convenient for teachers to use in the classroom. By setting a supporting base plate, the columns are vertically fixed on the supporting base plate, which can stably support the entire lifting mechanism, improve safety and stability, and achieve height adjustment through the columns and the lifting plate. The lifting method is simple and easy to control.

[0015] (2) The robot arm lifting mechanism described in the utility model can change the distance between the end robot arm assembly and the column by providing a movable and adjustable pointing guide plate, so that the robot arm lifting mechanism can lift objects at different distances, thereby improving the operation range of the robot arm lifting mechanism. By providing a rotatable adjustment plate, the angle of the pointing guide plate can be adjusted, and the position of the end robot arm assembly can be changed. The pointing guide plate can be used to adjust the horizontal position of the end robot arm assembly, so that the robot arm lifting mechanism can have a larger operation range, thereby improving the coverage of the robot arm lifting mechanism for teaching demonstrations.

[0016] (3) The robotic arm lifting mechanism described in the utility model can adjust the angle of the pointing guide plate by providing a rotatable adjustment plate. On the other hand, the pointing guide plate can be adjusted to a state parallel to the column, thereby reducing the width of the robotic arm lifting mechanism and enabling the robotic arm lifting mechanism to be used in a smaller space, thereby improving the applicability of the robotic arm lifting mechanism to the site of use. In addition, by rotating the adjustment plate, the pointing guide plate can be adjusted to a state parallel to the column, making the volume of the robotic arm lifting mechanism smaller, thereby improving the convenience of transportation and storage of the robotic arm lifting mechanism.

[0017] (4) The utility model discloses a mechanical arm lifting mechanism, in which a suction cup is arranged in the terminal mechanical arm assembly, and objects are sucked up by the suction cup. The force arm and the steering head in the terminal mechanical arm assembly can be rotated and adjusted, and the position and angle of the object sucked up by the suction cup can be adjusted. In this way, on the one hand, it can adapt to the requirements of sucking objects of different shapes, sizes and weights, thereby improving the applicability and flexibility of the mechanical arm. On the other hand, it can display teaching objects at multiple angles, thereby improving the teaching effect. The hanging plate is rotatably matched with the bottom end of the hanging rod and can be rotated and adjusted, thereby driving the objects sucked up by the suction cup to be turned and adjusted. In combination with the adjustment of the force arm and the steering head, the angle of the displayed objects can be adjusted more flexibly, thereby further improving the teaching effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 The present invention provides a schematic overall structural diagram of a preferred embodiment of a mechanical arm lifting mechanism.

[0020] Figure 2 for Figure 1 A magnified detail of area A.

[0021] Figure 3 This is a schematic diagram of the structure of the lifting plate of the utility model.

[0022] Figure 4 It is a schematic diagram of the pointing guide plate structure of the utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the end mechanical arm assembly of the utility model.

[0024] Figure 6 This is a schematic diagram of the connection between the fifth motor and the rotating rod 611 of the utility model.

[0025] In the figure: 1. supporting base plate; 2. column; 201. first guide rail; 202. first tooth plate; 3. lifting plate; 301. first slider; 302. first gear; 303. first motor; 4. adjusting plate; 401. steering drive motor; 402. second slider; 403. second gear; 404. second motor; 5. pointing guide plate; 501. second guide rail; 502. second tooth plate; 6. end robot arm assembly; 601. connecting frame; 602. force arm; 603. third motor; 604. steering head; 605. guide rod; 606. fourth motor; 607. suspension rod; 608. suspension plate; 609. suction cup; 610. fifth motor; 611. rotating rod. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1-Figure 6As shown, a mechanical arm lifting mechanism of the utility model comprises a supporting base plate 1, a column 2, a pointing guide plate 5 and an end mechanical arm assembly 6. The column 2 is vertically fixed on the top of the supporting base plate 1. A lifting plate 3 is provided on the column 2 for lifting and lowering. The cross section of the lifting plate 3 is an "L"-shaped structure. The side of the lifting plate 3 is rotatably matched with an adjusting plate 4 with a "T"-shaped structure. The pointing guide plate 5 is movably matched on the adjusting plate 4. The end mechanical arm assembly 6 is installed at the end of the pointing guide plate 5. The mechanical arm lifting mechanism has a simple and compact structure, occupies a small space, is easy to install and maintain, and is convenient for teachers to use in the classroom. By setting the supporting base plate 1, the column 2 is vertically fixed on the supporting base plate 1, which can stably support the entire lifting mechanism, improve safety and stability, and realize height adjustment through the column 2 and the lifting plate 3. The lifting method is simple and convenient to control. By setting the movably adjustable pointing guide plate 5, the distance between the end mechanical arm assembly 6 and the column 2 can be changed, so that the mechanical arm lifting mechanism The structure can lift objects at different distances, thereby improving the operating range of the robot arm lifting mechanism. By setting a rotatable adjustment plate 4, the angle of the pointing guide plate 5 can be adjusted. In this way, on the one hand, by adjusting the angle of the pointing guide plate 5, the position of the end robot arm assembly 6 can be changed. By coordinating the adjustment of the horizontal position of the end robot arm assembly 6 by the pointing guide plate 5, the robot arm lifting mechanism can have a wider operating range, thereby improving the coverage of the robot arm lifting mechanism for teaching and demonstration. On the other hand, the pointing guide plate 5 can be adjusted to a state parallel to the column 2, reducing the width of the robot arm lifting mechanism, so that the robot arm lifting mechanism can be used in a smaller space, thereby improving the applicability of the robot arm lifting mechanism to the site of use. In addition, by rotating the adjustment plate 4, the pointing guide plate 5 is adjusted to a state parallel to the column 2, so that the volume of the robot arm lifting mechanism is smaller, thereby improving the convenience of transportation and storage of the robot arm lifting mechanism.

[0028] Among them, the end mechanical arm assembly 6 includes a connecting frame 601 fixed to the pointing guide plate 5, a force arm 602 and a hanging plate 608, one end of the force arm 602 is hinged to the connecting frame 601, and the other end of the force arm 602 is hinged to cooperate with a steering head 604, a hollow suspension rod 607 is fixed at the bottom of the steering head 604, and the hanging plate 608 is rotatably matched at the bottom of the suspension rod 607, and a plurality of suction cups 609 are installed at the bottom of the hanging plate 608. The suction cup 609 can adopt an existing electric vacuum suction cup, which makes it faster to take and put objects. The end mechanical arm assembly 6 in the mechanical arm lifting mechanism is provided with a suction cup 609, and the objects are adsorbed by the suction cup 609. Both the arm 602 and the steering head 604 can be rotated and adjusted, and the position and angle of the object adsorbed by the suction cup 609 can be adjusted. In this way, on the one hand, it can adapt to the adsorption requirements of objects of different shapes, sizes and weights, thereby improving the applicability and flexibility of the robotic arm. On the other hand, it can display teaching objects at multiple angles, thereby improving the teaching effect. The hanging plate 608 is rotatably matched with the bottom end of the hanging rod 607 and can be rotated and adjusted, thereby driving the object adsorbed by the suction cup 609 to be turned and adjusted. In combination with the adjustment of the force arm 602 and the steering head 604, the angle of the displayed object can be more flexibly adjusted, thereby further improving the teaching effect.

[0029] A further improvement of this embodiment is that a first guide rail 201 is vertically welded to one side and one end of the column 2, a first tooth plate 202 is vertically welded to one side of the column 2, and first sliders 301 slidably matched with the first guide rail 201 are welded to the two side portions of the lifting plate 3 close to the column 2, a first gear 302 meshing with the first gear plate 202 is rotatably matched to the side of the lifting plate 3 close to the first gear plate 202, and a first motor 303 driving the first gear 302 to rotate is horizontally installed on the side of the lifting plate 3 away from the first gear 302. By setting the first guide rail 201 and the first slider 301 to slide in cooperation, the lifting plate 3 can be moved up and down in the vertical direction, thereby realizing the function of vertically lifting or lowering an object. In addition, a first tooth plate 202 is welded to one side of the column 2, and the lifting plate 3 can be rotated in the horizontal direction by the first gear 302 meshing with the first tooth plate 202, thereby realizing the function of moving and positioning the lifting plate 3 in the horizontal direction, and the sliding cooperation design can also reduce friction and wear, thereby improving the reliability and service life of the system.

[0030] A further improvement of this embodiment is that a rotating shaft is provided on the side of the adjustment plate 4 close to the lifting plate 3, and the adjustment plate 4 rotates on the side of the lifting plate 3 by means of the rotating shaft, and a steering drive motor 401 is horizontally installed on the side of the adjustment plate 4, and the output shaft of the steering drive motor 401 is connected to the fixed rotating shaft, and the steering adjustment of the adjustment plate 4 is realized by being driven by the steering drive motor 401.

[0031] The further improvement of this embodiment is that the "T"-shaped adjustment plate 4 is welded by a vertical plate and a horizontal plate, the side of the vertical plate in the adjustment plate 4 is welded with a second slider 402, the top of the horizontal plate in the adjustment plate 4 is rotatably matched with a second gear 403, the bottom of the horizontal plate in the adjustment plate 4 is vertically installed with a second motor 404 that drives the second gear 403 to rotate, the side of the pointing guide plate 5 is horizontally welded with a second guide rail 501 that slides with the second slider 402, and the bottom of the pointing guide plate 5 is horizontally welded with a second toothed plate 502 that meshes with the second gear 403. By controlling the second motor 404 to drive the rotation of the second gear 403, the sliding match between the second slider 402 and the second guide rail 501 can realize the adjustment of the position of the pointing guide plate 5, so that the position of the pointing guide plate 5 can be accurately adjusted as needed to meet different application requirements, and the sliding match between the second slider 402 and the second guide rail 501 has high reliability and durability. They can withstand certain loads and friction, while maintaining good sliding performance, reducing the wear and failure of components.

[0032] A further improvement of this embodiment is that a rotating shaft is provided on the connecting frame 601, the force arm 602 is hinged to the connecting frame 601 through the rotating shaft, a third motor 603 is installed on the side of the connecting frame 601, and the output end of the third motor 603 is fixedly connected to the rotating shaft.

[0033] A further improvement of this embodiment is that a guide rod 605 is hinged at one end of the force arm 602 close to the connecting frame 601, the axis of rotation of the guide rod 605 on the force arm 602 coincides with the axis of rotation of the force arm 602 on the connecting frame 601, a fourth motor 606 for driving the guide rod 605 to rotate is installed on the side of the connecting frame 601, and the end of the guide rod 605 away from the connecting frame 601 is hinged to the upper part of the steering head 604.

[0034] A further improvement of this embodiment is that a fifth motor 610 is installed on the top of the steering head 604, and the fifth motor 610 is connected to a rotating rod 611. The rotating rod 611 rotatably fits in the suspension rod 607, and the bottom of the rotating rod 611 is connected to the top of the suspension plate 608. The rotating rod 611 is driven to rotate by the fifth motor 610 to rotate and adjust the suspension plate 608.

[0035] When in use, first, the first motor 303 drives the first gear 302 to rotate, and the first gear 302 drives the lifting plate 3 to move by meshing with the first tooth plate 202, so as to realize the up and down movement operation of the lifting plate 3, and the steering drive motor 401 drives the adjustment plate 4 to rotate, so as to realize the rotation operation of the adjustment plate 4, and the second motor 404 drives the second gear 403 to rotate, and the second gear 403 drives the pointing guide plate 5 to move by meshing with the second tooth plate 502, so as to realize the left and right movement of the guide plate 5, and the third motor 603 drives the power arm 602 to rotate, so as to realize the rotation adjustment of the force arm 602, and the fourth motor 606 drives the guide rod 605 to rotate, and the guide rod 605 drives the steering head 604 to realize the steering operation of the steering head 604, and the fifth motor 606 drives the guide rod 605 to rotate. 10 drives the rotating rod 611, and the rotating rod 611 drives the hanging plate 609 to rotate, so as to realize the steering adjustment of the hanging plate 609, and then, the lifting plate 3 is moved downward, and at the same time, the left and right positions of the pointing guide plate 5 are moved, so that the teaching items that need to be lifted and displayed are within the operating range of the end robot arm assembly 6, and the suction cup 609 is moved to the teaching items that need to be lifted and displayed by rotating the power arm 602 and the steering head 604, and the teaching items that need to be lifted and displayed are adsorbed by the suction cup 609, and finally, the lifting plate 3 is moved upward to lift the teaching items that need to be lifted and displayed to a height that is convenient for viewing, and the angle of the teaching items to be lifted and displayed is changed by moving the pointing guide plate 5, rotating the power arm 602, rotating the steering head 604 and rotating the hanging plate 608.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A robot arm lifting mechanism, comprising a supporting base plate (1), a column (2), a pointing guide plate (5) and an end robot arm assembly (6), characterized in that: The column (2) is vertically fixed on the top of the supporting base plate (1); a lifting plate (3) is provided on the column (2) for lifting and lowering; the cross section of the lifting plate (3) is an "L"-shaped structure; the side of the lifting plate (3) is rotatably provided with an adjustment plate (4) with a "T"-shaped structure; the directional guide plate (5) is movably provided on the adjustment plate (4); and the end mechanical arm assembly (6) is installed at the end of the directional guide plate (5); The end robot arm assembly (6) comprises a connecting frame (601) fixed to the pointing guide plate (5), a force arm (602) and a hanging plate (608), one end of the force arm (602) is hinged to the connecting frame (601), the other end of the force arm (602) is hinged to a steering head (604), a hollow hanging rod (607) is fixed to the bottom of the steering head (604), the hanging plate (608) is rotatably fitted to the bottom end of the hanging rod (607), and a plurality of suction cups (609) are installed at the bottom of the hanging plate (608).

2. A mechanical arm lifting mechanism according to claim 1, characterized in that: A first guide rail (201) is vertically welded to one side and one end of the column (2); a first tooth plate (202) is vertically welded to one side of the column (2); first sliders (301) slidably matched with the first guide rail (201) are welded to two side portions of the lifting plate (3) close to the column (2); a first gear (302) meshing with the first gear plate (202) is rotatably matched to the side of the lifting plate (3) close to the first tooth plate (202); and a first motor (303) for driving the first gear (302) to rotate is horizontally installed on the side of the lifting plate (3) away from the first gear (302).

3. A mechanical arm lifting mechanism according to claim 1, characterized in that: A rotating shaft is arranged on one side of the adjusting plate (4) close to the lifting plate (3), and the adjusting plate (4) is rotatably matched with the side of the lifting plate (3) by means of the rotating shaft. A steering drive motor (401) is horizontally installed on the side of the adjusting plate (4), and the output shaft of the steering drive motor (401) is connected to the fixed rotating shaft.

4. The mechanical arm lifting mechanism according to claim 1, characterized in that: The "T"-shaped adjustment plate (4) is composed of a vertical plate and a horizontal plate welded together, a second slider (402) is welded to the side of the vertical plate in the adjustment plate (4), a second gear (403) is rotatably matched at the top of the horizontal plate in the adjustment plate (4), a second motor (404) for driving the second gear (403) to rotate is vertically installed at the bottom of the horizontal plate in the adjustment plate (4), a second guide rail (501) slidably matched with the second slider (402) is horizontally welded to the side of the pointing guide plate (5), and a second toothed plate (502) meshing with the second gear (403) is horizontally welded to the bottom of the pointing guide plate (5).

5. The mechanical arm lifting mechanism according to claim 1, characterized in that: A rotating shaft is arranged on the connecting frame (601), the force arm (602) is hinged to the connecting frame (601) via the rotating shaft, a third motor (603) is installed on the side of the connecting frame (601), and the output end of the third motor (603) is fixedly connected to the rotating shaft.

6. The mechanical arm lifting mechanism according to claim 1, characterized in that: A guide rod (605) is hingedly connected to one end of the lever arm (602) close to the connecting frame (601); the axis of rotation of the guide rod (605) on the lever arm (602) coincides with the axis of rotation of the lever arm (602) on the connecting frame (601); a fourth motor (606) for driving the guide rod (605) to rotate is installed on the side of the connecting frame (601); and one end of the guide rod (605) away from the connecting frame (601) is hingedly connected to the upper part of the steering head (604).

7. The mechanical arm lifting mechanism according to claim 1, characterized in that: A fifth motor (610) is installed on the top of the steering head (604), and the fifth motor (610) is connected to a rotating rod (611). The rotating rod (611) is rotatably fitted in the suspension rod (607), and the bottom of the rotating rod (611) is connected to the top of the suspension plate (608).

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