CN216759961U

CN216759961U - Mechanical arm

Info

Publication number: CN216759961U
Application number: CN202220526125.8U
Authority: CN
Inventors: 王杰
Original assignee: Hebi College of Vocation and Technology
Current assignee: Hebi College of Vocation and Technology
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-06-17
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses a mechanical arm, which comprises a base, wherein a motor is fixedly connected to the outer part of the base, a fixed plate is fixedly connected to the inner part of the base, an installation rod is connected to the inner part of the base and positioned above the fixed plate in a sliding manner, a mechanical arm main body is fixedly connected to the top of the installation rod, a bidirectional screw rod is rotatably connected to the inner part of the base and positioned below the fixed plate, the bidirectional screw rod is fixedly connected with the output end of the motor, a sliding block is connected to the outer part of the bidirectional screw rod in a threaded manner, a supporting rod is fixedly connected to the top of the sliding block, a limiting rod is connected to the outer part of the supporting rod in a sliding manner, a limiting block is connected to the outer part of the limiting rod in a sliding manner, and a spring is fixedly connected between the limiting block and the limiting rod; the utility model has the following beneficial effects: can fix and the unblock the arm through automatically controlled mode to the convenience is dismantled the arm, is favorable to promoting work efficiency, can prescribe a limit to the position of transmission plate, thereby conveniently fixes the arm.

Description

Mechanical arm

Technical Field

The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm.

Background

The mechanical arm is a complex system with high precision, multiple inputs and multiple outputs, high nonlinearity and strong coupling, and has been widely applied to the fields of industrial assembly, safety explosion prevention and the like due to unique operation flexibility.

Most inconvenient dismantlements of present arm, damage when the arm and need maintain or change, perhaps daily in the maintenance work to the arm again, because the operation is too loaded down with trivial details, lead to technical staff's work efficiency to receive the influence, also aggravated technical staff's working strength simultaneously, the arm can not drop into normal use in the late time and also can increase the cost of mill.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mechanical arm, which aims to solve the problem that the traditional mechanical arm proposed in the background technology is inconvenient to disassemble.

In order to achieve the purpose, the utility model provides the following technical scheme:

a mechanical arm comprises a base, wherein a motor is fixedly connected to the outer portion of the base, a fixed plate is fixedly connected to the inner portion of the base, an installation rod is slidably connected to the inner portion of the base and located above the fixed plate, a mechanical arm main body is fixedly connected to the top of the installation rod, a bidirectional lead screw is rotatably connected to the inner portion of the base and located below the fixed plate, the bidirectional lead screw is fixedly connected with an output end of the motor, a sliding block is connected to the outer portion of the bidirectional lead screw in a threaded manner, a supporting rod is fixedly connected to the top of the sliding block, a limiting rod is slidably connected to the outer portion of the supporting rod, a limiting block is slidably connected to the outer portion of the limiting rod, a spring is fixedly connected between the limiting block and the limiting rod, a limiting groove matched with the limiting block for use is formed in the inner portion of the installation rod, and a transmission plate is slidably connected to one side, located in the inner portion of the base and located on the supporting rod, the utility model discloses a bracing piece, including driving plate and gag lever post, fixedly connected with connecting rod between driving plate and the gag lever post, the transmission groove has been seted up to the inside of driving plate, the inside sliding connection in transmission groove has the transfer line, transfer line and bracing piece fixed connection.

Preferably, the top fixedly connected with baffle of bracing piece, the outside of bracing piece just is located the cover and is equipped with the extension spring between baffle and the gag lever post, the one end and the baffle fixed connection of extension spring, the other end and the gag lever post fixed connection of extension spring.

Preferably, a first guide groove is formed in the base and in one side of the transmission plate, a first guide block is connected to the inner portion of the first guide groove in a sliding mode, and the first guide block is fixedly connected with the transmission plate.

Preferably, a second guide groove is formed in the base and below the sliding block, a second guide block is connected to the inner portion of the second guide groove in a sliding mode, and the second guide block is fixedly connected with the sliding block.

Preferably, the outside fixedly connected with control switch of base, motor and control switch electric connection.

Preferably, the first guide groove and the first guide block are both in a trapezoidal structure.

The utility model has the following beneficial effects: through the base that sets up, including a motor, an end cap, a controller, and a cover plate, the fixed plate, the installation pole, two-way lead screw, the slider, the bracing piece, the gag lever post, the stopper, a spring, the spacing groove, the driving plate, the connecting rod, the driving groove, the transfer line, baffle and extension spring, can fix and the unblock to the arm through automatically controlled mode, thereby conveniently dismantle the arm, be favorable to promoting work efficiency, through the first guide way and the first guide block that set up, can prescribe a limit to the position of transfer line, thereby the convenience is fixed the arm.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the utility model at A;

fig. 4 is a schematic structural view of the first guide block of the present invention.

In the figure: 1. a base; 2. a motor; 3. a fixing plate; 4. mounting a rod; 5. a robot arm main body; 6. a bidirectional screw rod; 7. a slider; 8. a support bar; 9. a limiting rod; 10. a limiting block; 11. a spring; 12. a limiting groove; 13. a drive plate; 14. a connecting rod; 15. a transmission groove; 16. a transmission rod; 17. a baffle plate; 18. a tension spring; 19. a first guide groove; 20. a first guide block; 21. a second guide groove; 22. a second guide block; 23. and controlling the switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a mechanical arm comprises a base 1, a motor 2 is fixedly connected to the outside of the base 1, a fixed plate 3 is fixedly connected to the inside of the base 1, an installation rod 4 is slidably connected to the inside of the base 1 and positioned above the fixed plate 3, a mechanical arm main body 5 is fixedly connected to the top of the installation rod 4, a bidirectional screw 6 is rotatably connected to the inside of the base 1 and positioned below the fixed plate 3, the bidirectional screw 6 is fixedly connected with the output end of the motor 2, a slider 7 is connected to the outside of the bidirectional screw 6 through threads, a support rod 8 is fixedly connected to the top of the slider 7, a limit rod 9 is slidably connected to the outside of the support rod 8, a limit block 10 is slidably connected to the outside of the limit rod 9, a spring 11 is fixedly connected between the limit block 10 and the limit rod 9, a limit groove 12 matched with the limit block 10 for use is formed in the inside of the installation rod 4, and the installation rod 4 is limited and fixed under the action of the limit groove 12 and the limit block 10, thereby mounting the robot arm main body 5; base 1's inside and one side sliding connection who is located bracing piece 8 have drive plate 13, fixedly connected with connecting rod 14 between drive plate 13 and the gag lever post 9, drive groove 15 has been seted up to drive plate 13's inside, the inside sliding connection of drive groove 15 has transfer line 16, transfer line 16 and bracing piece 8 fixed connection make bracing piece 8 can drive stopper 10 through drive plate 13 and compress tightly installation pole 4 under drive groove 15 and transfer line 16's effect, thereby promote the fastening.

The top of the support rod 8 is fixedly connected with a baffle 17, a tension spring 18 is sleeved outside the support rod 8 and between the baffle 17 and the limiting rod 9, one end of the tension spring 18 is fixedly connected with the baffle 17, the other end of the tension spring 18 is fixedly connected with the limiting rod 9, and the limiting rod 9 is conveniently driven to return to an initial position under the action of the tension spring 18; a first guide groove 19 is formed in the base 1 and located on one side of the transmission plate 13, a first guide block 20 is connected to the inside of the first guide groove 19 in a sliding mode, the first guide block 20 is fixedly connected with the transmission plate 13, and the position of the transmission plate 13 is limited through the first guide groove 19 and the first guide block 20, so that the transmission plate 13 can only move up and down; a second guide groove 21 is formed in the base 1 and below the sliding block 7, a second guide block 22 is connected to the inside of the second guide groove 21 in a sliding mode, the second guide block 22 is fixedly connected with the sliding block 7, and the second guide groove 21 and the second guide block 22 can improve the stability of the sliding block 7 during movement; the control switch 23 is fixedly connected to the outside of the base 1, the motor 2 is electrically connected with the control switch 23, and electric equipment in the device is powered by an external power supply and is controlled by the control switch 23; the first guide groove 19 and the first guide block 20 are both of a trapezoidal structure, and the trapezoidal structure of the first guide groove 19 and the first guide block 20 can define the position of the transmission plate 13.

Specifically, when the utility model is used, firstly, the installation rod 4 is installed inside the base 1, the motor 2 is started through the control switch 23 to drive the bidirectional screw rod 6 to rotate forwards, so that the limiting rod 9 and the limiting block 10 are driven to move towards the direction close to the installation rod 4 through the slide block 7 and the support rod 8 until the limiting block 10 is abutted against and combined with the limiting groove 12 on the installation rod 4, meanwhile, under the action of the transmission groove 15 and the transmission rod 16, the transmission plate 13 drives the limiting rod 9 and the limiting block 10 to move downwards through the connecting rod 14, so that the installation rod 4 is compressed, the purpose of improving the stability is achieved, the installation work of the mechanical arm main body 5 is finally completed, when the mechanical arm main body 5 needs to be disassembled, only the motor 2 needs to be controlled to drive the bidirectional screw rod 6 to rotate backwards, so that the slide block 7 and the support rod 8 drive the limiting rod 9 and the limiting block 10 to be separated from the limiting groove 12, and under the matching of the

transmission grooves

15 and 16, the driving plate 13 drives the limiting rod 9 and the limiting block 10 to move upwards through the connecting rod 14, so that the installation rod 4 is not pressed, the unlocking of the installation rod 4 is completed, the mechanical arm main body 5 is taken down on the base 1 through the installation rod 4, the disassembly can be completed, the operation is convenient and fast, and the time and the labor are saved.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mechanical arm, includes base (1), its characterized in that: the motor (2) is fixedly connected to the outer portion of the base (1), the fixing plate (3) is fixedly connected to the inner portion of the base (1), the mounting rod (4) is connected to the inner portion of the base (1) and located above the fixing plate (3) in a sliding mode, the mechanical arm main body (5) is fixedly connected to the top portion of the mounting rod (4), the bidirectional lead screw (6) is rotatably connected to the inner portion of the base (1) and located below the fixing plate (3), the bidirectional lead screw (6) is fixedly connected with the output end of the motor (2), the slider (7) is connected to the outer thread of the bidirectional lead screw (6), the supporting rod (8) is fixedly connected to the top portion of the slider (7), the limiting rod (9) is connected to the outer portion of the supporting rod (8) in a sliding mode, the limiting block (10) is connected to the outer portion of the limiting rod (9) in a sliding mode, and the spring (11) is fixedly connected between the limiting block (10) and the limiting rod (9), spacing groove (12) that use with stopper (10) cooperation are seted up to the inside of installation pole (4), one side sliding connection that the inside of base (1) just is located bracing piece (8) has driving plate (13), fixedly connected with connecting rod (14) between driving plate (13) and spacing rod (9), driving groove (15) have been seted up to the inside of driving plate (13), the inside sliding connection of driving groove (15) has transfer line (16), transfer line (16) and bracing piece (8) fixed connection.

2. A robot arm according to claim 1, wherein: the top fixedly connected with baffle (17) of bracing piece (8), the outside of bracing piece (8) just is located and is equipped with extension spring (18) between baffle (17) and gag lever post (9), the one end and baffle (17) fixed connection of extension spring (18), the other end and gag lever post (9) fixed connection of extension spring (18).

3. A robot arm according to claim 1, wherein: first guide way (19) have been seted up to the inside of base (1) and the one side that is located driving plate (13), the inside sliding connection of first guide way (19) has first guide block (20), first guide block (20) and driving plate (13) fixed connection.

4. A robot arm according to claim 1, wherein: the inside of base (1) just is located the below of slider (7) and has seted up second guide way (21), the inside sliding connection of second guide way (21) has second guide block (22), second guide block (22) and slider (7) fixed connection.

5. A robot arm according to claim 1, wherein: the outside fixedly connected with control switch (23) of base (1), motor (2) and control switch (23) electric connection.

6. A robot arm according to claim 3, wherein: the first guide groove (19) and the first guide block (20) are both in a trapezoidal structure.