Mechanical movable arm with high rotation positioning stability

Abstract

The utility model relates to the field of mechanical movable arms, discloses a mechanical movable arm with high rotating and positioning stability, and solves the problems that a motor vibrates in the rotating process to drive a bolt to vibrate along with the motor, the bolt is easy to rotate in the vibrating process, the bolt moves upwards, and the stability of the bolt is influenced. In order to solve the problem that the stability of a rotating motor is not high due to the fact that the rotating motor shakes more strongly when rotating, the mechanical movable arm with the high rotating and positioning stability comprises a base, a first groove formed in the inner side of the upper portion of the base, the rotating motor arranged on the inner side of the first groove and a rotating shaft arranged at the output end of the rotating motor; the first rotating disc fixedly connected to the upper end of the rotating shaft is provided with the rotating mechanism, the rotating mechanism can be automatically limited when loosened, the possibility that a threaded rod for controlling the rotating mechanism is loosened can be reduced, and therefore the purpose of improving stability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical booms, in particular to a mechanical boom with high rotational positioning stability. Background Technique

[0002] A mechanical boom is a mechanical device that can simulate the movement of a human arm. It usually consists of multiple joints and connectors and can move flexibly in different planes and directions.

[0003] The patent with the publication number of CN218488452U discloses a control arm of a five-axis rotating robotic arm with high automation and stability, including a connecting disc and a fixed base. The connecting disc is installed and connected to the middle position at the upper end of the fixed base. The existing connection method between the mechanical boom and the motor is the rotation of bolts, which fixes the rotating motor of the mechanical boom to the base to reduce its vibration. However, the motor itself vibrates during rotation, driving the bolts to vibrate accordingly. The bolts are prone to rotate during vibration, causing the bolts to move upward. The rotating motor will shake more strongly during rotation, resulting in low stability. Content of the Utility Model

[0004] The purpose of the utility model is to provide a mechanical boom with high rotational positioning stability. By using this device for work, the problems that the motor itself vibrates during rotation, driving the bolts to vibrate accordingly, the bolts are prone to rotate during vibration, causing the bolts to move upward, and the rotating motor will shake more strongly during rotation, resulting in low stability are solved.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A mechanical boom with high rotational positioning stability, including a base, a first groove arranged inside the upper part of the base, a rotating motor arranged inside the first groove, a rotating shaft arranged at the output end of the rotating motor, a first rotating disc fixedly connected to the upper end of the rotating shaft, a mechanical boom main body arranged above the first rotating disc, a limiting mechanism arranged outside the rotating motor, and a rotating mechanism arranged below the limiting mechanism;

[0006] A second groove is provided on the inner side below the base. The limiting mechanism includes a second rotating disk provided on the inner side of the second groove. The second rotating disk is rotatably connected to the base. A first guiding hole is provided inside the outer side of the second rotating disk. The second groove communicates with the first groove through a second guiding hole. A first guiding rod is provided inside the second guiding hole. A connecting plate is fixedly connected to the inner wall of the first groove. A third guiding hole is provided inside the connecting plate. A second guiding rod is provided inside the third guiding hole. A sliding groove is provided inside the first guiding rod. The first guiding rod is slidably connected to the base. A sliding block is provided inside the sliding groove. The front end of the second guiding rod is fixedly connected to a first limiting plate. The upper end of the first limiting plate is fixedly connected to a second limiting plate. A first limiting groove is provided inside the housing of the rotating motor.

[0007] Preferably, the first guiding holes are equidistantly distributed inside the second rotating disk, and the top view appearance structure of the first guiding holes is arc-shaped, and the cooperation mode between the first guiding holes and the first guiding rod is clearance fit.

[0008] Preferably, the top view appearance structure of the second guiding hole is horizontally linear, and the cooperation mode between the second guiding hole and the first guiding rod is clearance fit.

[0009] Preferably, the front view appearance structure of the third guiding hole is inclined linearly, and the cooperation mode between the third guiding hole and the second guiding rod is clearance fit.

[0010] Preferably, the width of the left side of the sliding groove is greater than the width of the right side of the sliding groove, and the inner side surface of the sliding groove fits with the outer side surface of the sliding block.

[0011] Preferably, a first hole is provided in the middle inside of the second rotating disk. The rotating mechanism includes a first rotating rod provided inside the first hole. The lower end of the first rotating rod is fixedly connected to a threaded rod. The lower end of the threaded rod is fixedly connected to a second rotating rod. A threaded hole communicates with the lower wall of the second groove. The threaded rod is threadedly connected inside the threaded hole. A second hole is provided inside the second rotating rod. A limiting rod is provided inside the second hole. A rubber pad is provided between the limiting rod and the threaded rod. The limiting rod is slidably connected to the threaded rod. A second limiting groove communicates with the inner wall of the threaded hole.

[0012] Preferably, the inner side surface of the first hole fits with the outer side surface of the first rotating rod, and the width of the first hole is greater than the width of the threaded rod, and the appearance structure of the first rotating rod is a cuboid.

[0013] Preferably, the cooperation mode between the limiting rod and the second limiting groove is clearance fit, and two second limiting grooves are symmetrically arranged about the central axis of the threaded rod.

[0014] 1. A mechanical boom with high rotational positioning stability proposed by the present utility model, by providing a limiting mechanism, the rotational limiting mechanism can make multiple limiting plates move towards the middle simultaneously with the same force to fix the rotating motor. Compared with the prior art, when using multiple bolts to fix the rotating motor, the stability may be poor due to inconsistent forces of each bolt. With the same force, the stability will be better, thus achieving the purpose of improving stability.

[0015] 2. A mechanical boom with high rotational positioning stability proposed by the present utility model, by providing a rotating mechanism, the rotating mechanism can be automatically limited when released, which can reduce the possibility of loosening of the threaded rod for controlling the rotating mechanism, thus achieving the purpose of improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 is the front view sectional structure schematic diagram of the base of the present utility model;

[0018] Figure 3 is the top view sectional structure schematic diagram of the base of the present utility model;

[0019] Figure 4 is of the present utility model Figure 2 structural schematic diagram at position A;

[0020] Figure 5 is of the present utility model Figure 2 structural schematic diagram at position B.

[0021] In the figure: 1. Base; 8. First groove; 2. Rotating motor; 3. Rotating shaft; 4. First rotating disk; 5. Main body of the mechanical boom; 6. Limiting mechanism; 7. Rotating mechanism; 9. Second groove; 601. Second rotating disk; 602. First guiding hole; 603. Second guiding hole; 604. First guiding rod; 605. Connecting plate; 606. Third guiding hole; 607. Second guiding rod; 608. Chute; 609. Slide block; 610. First limiting plate; 611. Second limiting plate; 612. First limiting groove; 10. First hole; 701. First rotating rod; 702. Threaded rod; 703. Second rotating rod; 704. Threaded hole; 705. Second hole; 706. Limiting rod; 707. Rubber pad; 708. Second limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0023] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a mechanical boom with high rotational positioning stability, including a base 1, a first groove 8 provided inside the upper part of the base 1, a rotating motor 2 provided inside the first groove 8, a rotating shaft 3 provided at the output end of the rotating motor 2, a first rotating disk 4 fixedly connected to the upper end of the rotating shaft 3, a mechanical boom main body 5 provided above the first rotating disk 4, a limiting mechanism 6 provided outside the rotating motor 2, and a rotating mechanism 7 provided below the limiting mechanism 6;

[0024] A second groove 9 is provided on the inner side below the base 1. The limiting mechanism 6 includes a second rotating disk 601 provided on the inner side of the second groove 9. The second rotating disk 601 is rotatably connected to the base 1. A first guiding hole 602 is provided inside the outer side of the second rotating disk 601. The second groove 9 and the first groove 8 are communicated through a second guiding hole 603. A first guiding rod 604 is provided inside the second guiding hole 603. The first guiding holes 602 are equidistantly distributed inside the second rotating disk 601, and the top view appearance structure of the first guiding hole 602 is arc-shaped. The first guiding hole 602 and the first guiding rod 604 are in clearance fit. The top view appearance structure of the second guiding hole 603 is horizontally linear, and the second guiding hole 603 and the first guiding rod 604 are in clearance fit. When the second rotating disk 601 rotates, it can push the first guiding rod 604 to move towards the middle along the track of the second guiding hole 603. A connecting plate 605 is fixedly connected to the inner wall of the first groove 8. A third guiding hole 606 is provided inside the connecting plate 605. A second guiding rod 607 is provided inside the third guiding hole 606. A sliding groove 608 is provided inside the first guiding rod 604. The first guiding rod 604 is slidably connected to the base 1. A sliding block 609 is provided inside the sliding groove 608. The front end of the second guiding rod 607 is fixedly connected to a first limiting plate 610. The front view appearance structure of the third guiding hole 606 is inclined linear, and the third guiding hole 606 and the second guiding rod 607 are in clearance fit. The second guiding rod 607 moves up and down along the track of the sliding groove 608 under the push of the third guiding hole 606. The upper end of the first limiting plate 610 is fixedly connected to a second limiting plate 611. A first limiting groove 612 is provided inside the outer shell of the rotating motor 2. The width of the left side of the sliding groove 608 is greater than the width of the right side of the sliding groove 608, and the inner side surface of the sliding groove 608 is attached to the outer side surface of the sliding block 609, so that the sliding block 609 can move inside the sliding groove 608 but will not move to the inside of the sliding groove 608.

[0025] A first hole 10 is provided in the middle inside of the second rotating disk 601. The rotating mechanism 7 includes a first rotating rod 701 provided inside the first hole 10. A threaded rod 702 is fixedly connected to the lower end of the first rotating rod 701. The inner side surface of the first hole 10 fits with the outer side surface of the first rotating rod 701, and the width of the first hole 10 is greater than the width of the threaded rod 702. Moreover, the outer appearance structure of the first rotating rod 701 is a cuboid, so that the first rotating rod 701 can drive the second rotating disk 601 to rotate, and the first rotating rod 701 and the threaded rod 702 can move up and down inside the first hole 10. A second rotating rod 703 is fixedly connected to the lower end of the threaded rod 702. A threaded hole 704 is communicated with the lower wall of the second groove 9. The threaded rod 702 is threadedly connected inside the threaded hole 704. A second hole 705 is provided inside the second rotating rod 703. A limiting rod 706 is provided inside the second hole 705. A rubber pad 707 is provided between the limiting rod 706 and the threaded rod 702. The connection mode between the limiting rod 706 and the threaded rod 702 is a sliding connection. A second limiting groove 708 is communicated with the inner wall of the threaded hole 704. The matching mode between the limiting rod 706 and the second limiting groove 708 is a clearance fit. Moreover, two second limiting grooves 708 are symmetrically arranged about the central axis of the threaded rod 702, so that the limiting rod 706 can move left and right inside the second limiting groove 708, and the threaded rod 702 can rotate only when the two limiting rods 706 move out of the second limiting groove 708 at the same time.

[0026] When installing the rotating motor 2, place the rotating motor 2 inside the first groove 8. Use a movable wrench to put it on the outside of the second rotating rod 703 and rotate the movable wrench to push the limiting rods 706 on both sides, so that the upper limiting rod 706 moves out of the inside of the second limiting groove 708. Rotate the second rotating rod 703 to drive the threaded rod 702 and the first rotating rod 701 to rotate. Since the outer structure of the first rotating rod 701 is a cuboid, it then drives the second rotating disc 601 to rotate, drives the first guiding hole 602 to rotate, and pushes the first guiding rod 604 to move towards the middle along the track of the second guiding hole 603. Then it drives the first limiting plate 610 to move towards the middle, drives the second guiding rod 607 to move towards the middle, and makes the second guiding rod 607 be pushed by the third guiding hole 606 to move downward along the track of the sliding groove 608, so that the first limiting plate 610 and the second limiting plate 611 move towards the middle and downward, and makes the first limiting plate 610 move into the corresponding first limiting groove 612, realizing the fixation of the rotating motor 2. Loosen the second rotating rod 703 to make the limiting rod 706 move back to the inside of the second limiting groove 708. Since the first limiting plate 610 and the second limiting plate 611 apply force to the rotating motor 2 at the same time and the force is the same, compared with the poor stability caused by the inconsistent force of each bolt when using multiple bolts to fix the rotating motor 2, the stability is better. Moreover, the limiting rods 706 on both sides are relatively independent. When shaking occurs, it is very difficult for the limiting rods 706 on both sides to leave the inside of the second limiting groove 708 at the same time. When moving towards one side of the limiting rod 706, the other one will enter the corresponding second limiting groove 708 more deeply, making it very difficult for the threaded rod 702 to vibrate under vibration, improving its stability.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical boom with high rotational positioning stability, comprising a base (1), a first groove (8) arranged inside the upper part of the base (1), a rotating motor (2) arranged inside the first groove (8), a rotating shaft (3) arranged at the output end of the rotating motor (2), a first rotating disk (4) fixedly connected to the upper end of the rotating shaft (3), and a mechanical boom main body (5) arranged above the first rotating disk (4), characterized in that: A limiting mechanism (6) is provided on the outer side of the rotating motor (2), and a rotating mechanism (7) is provided below the limiting mechanism (6). A second groove (9) is provided on the inner side below the base (1). The limiting mechanism (6) includes a second rotating disk (601) provided on the inner side of the second groove (9). The second rotating disk (601) is rotatably connected to the base (1). A first guiding hole (602) is provided inside the outer side of the second rotating disk (601). The second groove (9) and the first groove (8) are communicated through a second guiding hole (603). A first guiding rod (604) is provided inside the second guiding hole (603). A connecting plate (605) is fixedly connected to the inner wall of the first groove (8). A third guiding hole (606) is provided inside the connecting plate (605). A second guiding rod (607) is provided inside the third guiding hole (606). A sliding groove (608) is provided inside the first guiding rod (604). The first guiding rod (604) is slidably connected to the base (1). A sliding block (609) is provided inside the sliding groove (608). The front end of the second guiding rod (607) is fixedly connected to a first limiting plate (610). The upper end of the first limiting plate (610) is fixedly connected to a second limiting plate (611). A first limiting groove (612) is provided inside the outer shell of the rotating motor (2).

2. The mechanical boom with high rotational positioning stability according to claim 1, characterized in that: The first guiding holes (602) are equidistantly distributed inside the second rotating disk (601). The top view external structure of the first guiding holes (602) is arc-shaped. The cooperation mode between the first guiding holes (602) and the first guiding rod (604) is clearance fit.

3. A mechanical boom with high rotational positioning stability according to claim 1, characterized in that: The top view external structure of the second guiding hole (603) is horizontally linear. The cooperation mode between the second guiding hole (603) and the first guiding rod (604) is clearance fit.

4. A mechanical boom with high rotational positioning stability according to claim 1, characterized in that: The front view external structure of the third guiding hole (606) is inclined linear. The cooperation mode between the third guiding hole (606) and the second guiding rod (607) is clearance fit.

5. A mechanical boom with high rotational positioning stability according to claim 1, characterized in that: The width of the left side of the sliding groove (608) is greater than the width of the right side of the sliding groove (608). The inner side surface of the sliding groove (608) is in contact with the outer side surface of the sliding block (609).

6. The mechanical boom with high rotational positioning stability according to claim 1, characterized in that: A first hole (10) is provided in the middle inside of the second rotating disk (601). The rotating mechanism (7) includes a first rotating rod (701) provided inside the first hole (10). A threaded rod (702) is fixedly connected to the lower end of the first rotating rod (701). A second rotating rod (703) is fixedly connected to the lower end of the threaded rod (702). A threaded hole (704) communicates with the lower wall of the second groove (9). The threaded rod (702) is threadedly connected inside the threaded hole (704). A second hole (705) is provided inside the second rotating rod (703). A limiting rod (706) is provided inside the second hole (705). A rubber pad (707) is provided between the limiting rod (706) and the threaded rod (702). The limiting rod (706) is slidably connected to the threaded rod (702). A second limiting groove (708) communicates with the inner wall of the threaded hole (704).

7. A mechanical boom with high rotational positioning stability according to claim 6, characterized in that: The inner side surface of the first hole (10) fits with the outer side surface of the first rotating rod (701). The width of the first hole (10) is greater than the width of the threaded rod (702). The outer appearance structure of the first rotating rod (701) is a cuboid.

8. A mechanical boom with high rotational positioning stability according to claim 6, characterized in that: The limiting rod (706) and the second limiting groove (708) are in clearance fit. Two second limiting grooves (708) are symmetrically arranged about the central axis of the threaded rod (702).

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