CN211916903U

CN211916903U - Big load robot arm

Info

Publication number: CN211916903U
Application number: CN202020618214.6U
Authority: CN
Inventors: 严伟利
Original assignee: Huzhou Ruichi Mechanical Equipment Co ltd
Current assignee: Huzhou Ruichi Mechanical Equipment Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-11-13
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a big load robot arm, including first arm (1) and second arm (2), rotate through axis of rotation (3) between first arm (1) and second arm (2) and connect, the inside of first arm (1) and second arm (2) is equipped with the chamber of placing of mutual intercommunication, the chamber bottom of placing of first arm (1) is equipped with automatic spooler (4), the chamber both sides of placing of second arm (2) are equipped with sideslip track (5), roll connection has drive shaft (6) on sideslip track (5), the cotton rope of automatic spooler (4) passes axis of rotation (3) and connects drive shaft (6), first arm (1) outside is connected with telescopic link (7) that are located second arm (2) top, end connection drive shaft (6) of telescopic link (7). The utility model has the characteristics of low in production cost, space utilization are high.

Description

Big load robot arm

Technical Field

The utility model relates to a robot arm, especially a big load robot arm.

Background

In the production and processing of a factory, a manipulator is often used for carrying and transferring goods; the mechanical arm generally adopts a motor or cylinder or oil cylinder driving mode to grab the goods. The motor driving mode is that the motor is utilized to directly connect or the belt pulley drives the rotating shaft to rotate, so that the corresponding mechanical arm is driven to swing, but the motor driving mode has larger requirements on the motor torque and the structural strength of the mechanical arm for the mechanical arm with large load and long force arm, so that the mechanical arm is driven by a cylinder or an oil cylinder mostly. The air cylinder or the oil cylinder is used for driving, so that a manufacturer arranges a corresponding oil pump or an air source at the periphery of the manipulator, thereby causing the complication of equipment and the increase of production cost. And the cylinder or the oil cylinder needs to be arranged at the outer positions of the two mechanical arms, and is pushed upwards at an inclined angle to realize the lifting effect, so that the driving cylinder occupies the space position between the two mechanical arms, the driving cylinder is far away from a conveying station when the driving cylinder is placed, and the space utilization rate and the universality are reduced. Therefore, the existing robot arm for large load has the problems of high production cost and low space utilization rate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a big load robot arm. It has the characteristics of low production cost and high space utilization rate.

The technical scheme of the utility model: the utility model provides a big load robot arm, including first arm and second arm, rotate the connection through the axis of rotation between first arm and the second arm, the inside of first arm and second arm is equipped with the chamber of placing of intercommunication each other, the chamber bottom of placing of first arm is equipped with automatic spooler, the chamber both sides of placing of second arm are equipped with the sideslip track, roll connection has the drive shaft on the sideslip track, the cotton rope of automatic spooler passes the axis of rotation connection drive shaft, the first arm outside is connected with the telescopic link that is located second arm top, the end connection drive shaft of telescopic link.

In the robot arm with large load, the rotating shaft is provided with a rotating wheel matched with the automatic wire rewinding device.

In the robot arm with large load, the transverse moving track is a V-shaped track, and two ends of the driving shaft are rotatably connected with rolling wheels positioned on the V-shaped track.

In the robot arm with large load, the middle of the top surface of the second mechanical arm is provided with an opening through which the telescopic rod passes, and one end, close to the top surface of the first mechanical arm, of the second mechanical arm is provided with a limiting block which is attached to the telescopic rod.

Compared with the prior art, the utility model realizes the swinging effect of the second mechanical arm through the matching of the automatic wire rewinding device and the telescopic rod, so that the equipment does not need external facilities such as an air source, an oil pump and the like during working, and is only driven by a power supply, thereby effectively reducing the production cost of the utility model; in addition, the telescopic rod can be arranged above the second mechanical arm, so that the occupation of the external space of the joint by the first mechanical arm and the second mechanical arm is avoided, and the space utilization rate of the utility model is effectively improved; the structure can also install the automatic wire-rewinding device required to be wired at the bottom of the first mechanical arm, so that the wiring and the overhauling work of installation personnel are facilitated. Therefore, the utility model has the characteristics of low in production cost, space utilization are high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention during lifting;

fig. 2 is a schematic structural diagram of the present invention when placed.

The labels in the figures are: the automatic winding device comprises a first mechanical arm 1, a second mechanical arm 2, a rotating shaft 3, an automatic winding device 4, a transverse moving track 5, a driving shaft 6, a telescopic rod 7 and a limiting block 8.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A large-load robot arm is composed of a first mechanical arm 1 and a second mechanical arm 2, the first mechanical arm 1 and the second mechanical arm 2 are rotatably connected through a rotating shaft 3, the bottom of the first mechanical arm 1 is installed on a robot base, the end of the second mechanical arm 2 is connected with a conventional grabbing hand, placing chambers which are mutually communicated are arranged inside the first mechanical arm 1 and the second mechanical arm 2, an automatic wire rewinding device 4 is arranged at the bottom of the placing chamber of the first mechanical arm 1, transverse moving rails 5 are arranged on two sides of the placing chamber of the second mechanical arm 2, a driving shaft 6 is connected to each transverse moving rail 5 in a rolling mode, a wire rope of the automatic wire rewinding device 4 penetrates through the rotating shaft 3 to be connected with the driving shaft 6, the automatic wire rewinding device 4 is a commercially available motor-driven wire rewinding device, an expansion rod 7 located above the second mechanical arm 2 is connected to the outer side of the first mechanical arm 1, and the expansion rod 7 can select a gas spring and other limiting rods which do, the end of the telescopic rod 7 is connected with the driving shaft 6.

And a rotating wheel matched with the automatic wire rewinding device 4 is arranged on the rotating shaft 3.

The transverse moving track 5 is a V-shaped track, and two ends of the driving shaft 6 are rotatably connected with rolling wheels positioned on the V-shaped track.

An opening for the telescopic rod 7 to penetrate through is formed in the middle of the top surface of the second mechanical arm 2, and a limiting block 8 which is attached to the telescopic rod 7 is arranged at one end, close to the top surface of the first mechanical arm 1, of the second mechanical arm 2; when the second mechanical arm 2 is lifted up, the angle of the telescopic rod 7 is limited by one end of the opening, and when the second mechanical arm 2 is put down, the angle of the telescopic rod 7 is limited by the limiting block 8.

The utility model discloses a theory of operation, the utility model discloses when using, snatch the hand by 2 tip of second arm and grab the goods, then automatic spooler 4 is received the line and is driven drive shaft 6 and remove to 1 direction of first arm along sideslip track 5. At the moment, the telescopic rod 7 is in an extending state, and the second mechanical arm 2 is in a low position; drive when the drive shaft 6 moves and provide an inward contractile force to telescopic link 7 for telescopic link 7 is at the internal contraction under the atress effect, thereby drives second arm 2 and snatchs the hand and upwards swings, realizes the promotion effect to the goods. After the telescopic rod 7 is completely contracted, the automatic wire-rewinding device 4 plays a role in limiting the second mechanical arm 2 through tensioning, so that the second mechanical arm 2 keeps in a high position; when placing the goods, by the outside unwrapping wire of automatic spooler 4, make telescopic link 7 outwards stretch out under the action of gravity to keep the steady decline of second arm 2, realize placing the effect.

Claims

1. The utility model provides a big load robot arm which characterized in that: including first arm (1) and second arm (2), rotate through axis of rotation (3) between first arm (1) and the second arm (2) and connect, the inside of first arm (1) and second arm (2) is equipped with the chamber of placing of intercommunication each other, the chamber bottom of placing of first arm (1) is equipped with automatic spooler (4), the chamber both sides of placing of second arm (2) are equipped with sideslip track (5), roll connection has drive shaft (6) on sideslip track (5), the cotton rope of automatic spooler (4) passes axis of rotation (3) and connects drive shaft (6), first arm (1) outside is connected with telescopic link (7) that are located second arm (2) top, the end connection drive shaft (6) of telescopic link (7).

2. A heavy duty robot arm as claimed in claim 1, wherein: and a rotating wheel matched with the automatic wire rewinding device (4) is arranged on the rotating shaft (3).

3. A heavy duty robot arm as claimed in claim 1, wherein: the transverse moving track (5) is a V-shaped track, and two ends of the driving shaft (6) are rotatably connected with rolling wheels positioned on the V-shaped track.

4. A heavy duty robot arm as claimed in claim 1, wherein: the top surface middle part of second arm (2) is equipped with the opening that supplies telescopic link (7) to pass, and second arm (2) are equipped with stopper (8) of laminating each other with telescopic link (7) in the top surface one end that is close to first arm (1).