Multi-stage telescopic mechanical arm
By setting a fixed insertion rod and a fixed spring on the connecting frame of the multi-stage telescopic robot arm, combined with the design of electric push rod and roller, the stability and load capacity of the robot arm during load is solved, and a more efficient operation of the robot arm is achieved.
Patent Information
- Application Number
- CN202421326923.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The existing multi-stage telescopic robot arms have limits when loading heavy objects. Overweight loads can easily lead to damage to the robot arms. When combined side by side, the two sets of robot arms are prone to relative sliding, affecting the load capacity.
By setting a fixed insertion rod, a fixed spring, a connecting plate and a fixed bolt on the connecting frame, the retracting and extension of the fixed insertion rod is achieved. Combined with the design of the electric push rod and the roller, the friction between the telescopic frame is reduced, and the stability and load capacity of the mechanical arms are ensured when combined side by side.
It effectively improves the stability and load capacity of the robotic arm during load, avoids the problem of relative sliding, and allows the robotic arm to operate efficiently within a wider range of motion.
Smart Images
Figure CN222596496U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical arms, in particular to a multi-stage telescopic mechanical arm. Background Art
[0002] A multi-stage telescopic robot arm is a mechanical device with multiple telescopic stages. It is usually composed of multiple telescopic joints. This design allows the robot arm to have a wider range of activities in a limited space. It is suitable for occasions that require operation in narrow spaces or precise positioning.
[0003] Existing multi-stage telescopic robotic arms have certain limitations when carrying heavy objects. Overloads can easily cause damage to the robotic arms. When two sets of robotic arms are combined side by side, the two sets of robotic arms are prone to relative sliding when subjected to loads, affecting the load capacity of the two sets of robotic arms when telescopic. Therefore, improvements are needed. Utility Model Content
[0004] In order to overcome the above-mentioned defects, the utility model provides a multi-stage telescopic robotic arm, which solves the problem that when two groups of robotic arms are combined side by side in the existing multi-stage telescopic robotic arm, the two groups of robotic arms are prone to relative sliding when subjected to load, thereby affecting the load capacity of the two groups of robotic arms when telescopic.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage telescopic robotic arm, comprising a connecting frame, wherein rectangular grooves are provided at the four corners of the top of the connecting frame, mounting grooves are provided at the four corners of the connecting frame on one side of the rectangular groove, and a limiting slide groove is provided on the side of the mounting groove away from the rectangular groove, a fixed plug rod is slidably installed inside the mounting groove, and one end of the fixed plug rod passes through the mounting groove and extends into the rectangular groove, a limiting plate is fixedly installed on the surface of the fixed plug rod located in the mounting groove close to the rectangular groove, a fixing spring is provided on the surface of the fixed plug rod located in the mounting groove, two groups of fixed plug rods on one side of the connecting frame are located in the limiting slide groove, and one end is fixedly installed with a connecting plate through the limiting slide groove, and two groups of telescopic frames are symmetrically provided at the bottom of the connecting frame.
[0006] As a further solution of the utility model: slide grooves 1 are symmetrically provided on both sides of the telescopic frame 1, a telescopic frame 2 is slidably installed inside one side of the telescopic frame 1, and rollers 1 are symmetrically fixedly installed at both ends of one side of the telescopic frame 1, and the rollers 1 are slidably connected to the slide groove 1.
[0007] As a further solution of the utility model: slide grooves 2 are symmetrically provided on both sides of the telescopic frame 2, a telescopic frame 3 is slidably installed inside one side of the telescopic frame 2, rollers 2 are symmetrically fixedly installed at both ends of one side of the telescopic frame 3 located inside the telescopic frame 2, and electric push rods are fixedly installed at the bottom of the telescopic frame 1, the telescopic frame 2 and the telescopic frame 3.
[0008] As a further solution of the utility model: a top of the telescopic frame is symmetrically fixed with fixed blocks, and a fixed plug hole is provided at the central position of the opposite side of the two sets of fixed blocks, and the fixed plug hole corresponds to the fixed plug rod.
[0009] As a further solution of the utility model: a connecting end plate is provided at one end of the telescopic frame three, connecting bolts are provided at the four corners of the connecting end plate, and the connecting bolts pass through the connecting end plate to be connected to the telescopic frame three.
[0010] As a further solution of the utility model: a fixing bolt is provided on the top of the connecting plate, two groups of positioning screw holes are respectively provided on both sides of the top of the connecting frame between the two groups of limiting slide grooves, and the fixing bolt passes through the connecting plate and is connected to the positioning screw holes.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. The multi-stage telescopic mechanical arm is provided with a fixed plug rod, a fixed spring, a connecting plate and a fixing bolt. The fixing bolt is loosened, and the connecting plate is pushed to drive the fixed plug rod to retract into the installation groove. The fixing block is inserted into the rectangular groove. After the fixed socket corresponds to the fixed plug rod, the connecting plate is loosened. Under the rebound action of the fixing spring, the fixed plug rod is pushed out of the installation groove and inserted into the corresponding fixed socket. Then the fixing bolt is screwed through the connecting plate and inserted into the corresponding positioning screw hole, so that the two sets of telescopic frames are conveniently clamped and fixed side by side at the bottom of the connecting plate, so as to realize the side-by-side combination connection of the two sets of telescopic frames and improve the load capacity of the mechanical arm when telescoping.
[0013] 2. The multi-stage telescopic mechanical arm is provided with a telescopic frame 1, a telescopic frame 2, a telescopic frame 3 and an electric push rod, and the electric push rod is controlled to extend so that the telescopic frame 3 is pulled out from the inside of the telescopic frame 2. As the electric push rod continues to extend, the telescopic frame 2 is pulled out from the inside of the telescopic frame 1. When the telescopic frame 3 and the telescopic frame 2 are extended, the roller 1 and the roller 2 slide in the corresponding slide groove 1 and the slide groove 2, thereby reducing the mutual friction between the telescopic frame 1, the telescopic frame 2 and the telescopic frame 3 when they move relative to each other, so that the telescopic frame 2 and the telescopic frame 3 can be extended more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of a three-dimensional combined structure of a connecting frame and two sets of telescopic frames of the utility model;
[0015] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the telescopic frame 1, the telescopic frame 2 and the telescopic frame 3 of the utility model;
[0016] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the connecting frame and the fixed plug rod of the utility model;
[0017] Figure 4For this utility model Figure 3 A schematic diagram of the three-dimensional enlarged structure at the center A;
[0018] In the figure: 1. Telescopic frame 1; 2. Slide 1; 3. Telescopic frame 2; 4. Roller 1; 5. Slide 2; 6. Telescopic frame 3; 7. Roller 2; 8. Electric push rod; 9. Fixed block; 10. Fixed socket; 11. Connecting end plate; 12. Connecting bolt; 13. Connecting frame; 14. Rectangular groove; 15. Mounting groove; 16. Limiting slide; 17. Fixed plug rod; 18. Limiting plate; 19. Fixed spring; 20. Connecting plate; 21. Positioning screw hole; 22. Fixing bolt. DETAILED DESCRIPTION
[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0020] like Figure 1-4 As shown, the utility model provides a technical solution: a multi-stage telescopic mechanical arm, including a connecting frame 13, rectangular grooves 14 are provided at the four corners of the top of the connecting frame 13, mounting grooves 15 are provided on one side of the four corners of the connecting frame 13 located at the rectangular groove 14, and a limiting sliding groove 16 is provided on the side of the mounting groove 15 away from the rectangular groove 14, a fixed plug rod 17 is slidably installed inside the mounting groove 15, and one end of the fixed plug rod 17 passes through the mounting groove 15 and extends to the inside of the rectangular groove 14. Due to the rectangular groove 14, after the fixing block 9 is correspondingly inserted into the inside of the rectangular groove 14, it is ensured that the telescopic frame 1 will not be misaligned when it is clamped and fixed to the bottom of the connecting frame 13;
[0021] The fixed plug rod 17 is located inside the installation groove 15 and is fixedly installed with a limit plate 18 on one side surface close to the rectangular groove 14. A fixed spring 19 is provided on the surface of the fixed plug rod 17 located inside the installation groove 15. One end of the two groups of fixed plug rods 17 on one side of the connecting frame 13 is located in the limit slide groove 16 and is fixedly installed with a connecting plate 20 through the limit slide groove 16. By providing a fixed spring 19, the fixed plug rod 17 is pushed out of the installation groove 15 and inserted into the fixed block 9 inside the rectangular groove 14 under the rebound action of the fixed spring 19, so that the fixed block 9 is clamped and fixed inside the rectangular groove 14;
[0022] A fixing bolt 22 is provided on the top of the connecting plate 20, and two groups of positioning screw holes 21 are respectively provided on both sides of the top of the connecting frame 13 between the two groups of limiting slide grooves 16, and the fixing bolts 22 pass through the connecting plate 20 and are connected with the positioning screw holes 21. Because the fixing bolts 22 are provided, tighten the fixing bolts 22 and pass through the connecting plate 20 to insert into the corresponding positioning screw holes 21, so that the connecting plate 20 is clamped and fixed on the top of the connecting frame 13 to ensure that the connecting plate 20 will not cause the fixing rod 17 to slide at will.
[0023] Two groups of telescopic frames 1 are symmetrically arranged at the bottom of the connecting frame 13. Slide grooves 2 are symmetrically arranged on both sides of the telescopic frame 1, and a telescopic frame 2 3 is slidably installed inside one side of the telescopic frame 1. Rollers 4 are symmetrically fixedly installed at both ends of one side of the telescopic frame 2 3 located inside the telescopic frame 1, and the rollers 4 are slidably connected with the slide grooves 2. By providing rollers 4, the telescopic frame 2 3 is pulled out from the inside of the telescopic frame 1, and the rollers 4 roll inside the slide grooves 2, thereby reducing the friction between the telescopic frame 2 3 and the inner wall of the telescopic frame 1 when the telescopic frame 2 3 is pulled out from the inside of the telescopic frame 1.
[0024] Slide grooves 25 are symmetrically provided on both sides of the telescopic frame 23, a telescopic frame 3 6 is slidably installed inside one side of the telescopic frame 23, rollers 27 are symmetrically fixedly installed on both ends of one side of the telescopic frame 3, and an electric push rod 8 is fixedly installed at the bottom of the telescopic frame 1, the telescopic frame 23 and the telescopic frame 3 6. By providing the roller 27, the telescopic frame 3 6 is pulled out from the inside of the telescopic frame 23, so that the roller 27 rolls inside the slide groove 25, thereby reducing the friction between the telescopic frame 3 6 and the inner wall of the telescopic frame 23 when the telescopic frame 3 6 is pulled out from the inside of the telescopic frame 23.
[0025] The top of the telescopic frame 1 is symmetrically fixed with fixed blocks 9, and fixed sockets 10 are provided at the central positions of the opposite sides of the two groups of fixed blocks 9, and the fixed sockets 10 correspond to the fixed plug rods 17. Because the fixed blocks 9 are provided, after the fixed blocks 9 are inserted into the rectangular grooves 14 and the fixed plug rods 17 are inserted into the corresponding fixed sockets 10, the fixed blocks 9 are clamped and fixed.
[0026] A connecting end plate 11 is provided at one end of the telescopic frame three 6, and connecting bolts 12 are provided at the four corners of the connecting end plate 11, and the connecting bolts 12 pass through the connecting end plate 11 to be connected to the telescopic frame three 6. Since the connecting end plate 11 is provided, the connecting bolts 12 are tightened to fix the connecting end plate 11 to one end of the two groups of telescopic frames three 6 to ensure that the ends of the two groups of telescopic frames three 6 can be flush when they are synchronously extended and retracted.
[0027] The working principle of the utility model is:
[0028] Loosen the fixing bolts 22, push and squeeze the two groups of connecting plates 20 to move closer to each other, so that the fixed plug rod 17 is retracted into the corresponding mounting groove 15, and the fixing blocks 9 on the top of the two groups of telescopic frames 1 are inserted into the bottom of the rectangular groove 14 accordingly, so that the fixed sockets 10 correspond to the fixed plug rods 17, loosen the connecting plates 20, and under the rebound action of the fixing springs 19, the fixed plug rods 17 are pushed out of the mounting groove 15 and inserted into the corresponding fixed sockets 10, tighten the fixing bolts 22 to clamp and fix the connecting plates 20 on the top of the connecting frame 13, and then tighten the connecting bolts 12 to fix the connecting end plate 11 to one end of the two groups of telescopic frames three 6, control the two groups of electric push rods 8 to synchronously extend and retract the telescopic frame three 6 to push the telescopic frame two 3, and when the electric push rods 8 continue to extend, the telescopic frame two 3 is gradually pulled out from the inside of the telescopic frame one 1.
[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0030] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.
Claims
1. A multi-stage telescopic mechanical arm, comprising a connecting frame (13), characterized in that: Rectangular grooves (14) are provided at the four corners of the top of the connecting frame (13); mounting grooves (15) are provided at the four corners of the connecting frame (13) on one side of the rectangular groove (14); and a limiting sliding groove (16) is provided on the side of the mounting groove (15) away from the rectangular groove (14); a fixed plug rod (17) is slidably installed inside the mounting groove (15); and one end of the fixed plug rod (17) passes through the mounting groove (15) and extends into the rectangular groove (14); a limiting plate (18) is fixedly installed on the surface of the fixed plug rod (17) located in the mounting groove (15) and close to the rectangular groove (14); a fixing spring (19) is provided on the surface of the fixed plug rod (17) located in the mounting groove (15); one end of two groups of fixed plug rods (17) on one side of the connecting frame (13) located in the limiting sliding groove (16) passes through the limiting sliding groove (16) and is fixedly installed with a connecting plate (20); and two groups of telescopic frames (1) are symmetrically provided at the bottom of the connecting frame (13).
2. A multi-stage telescopic mechanical arm according to claim 1, characterized in that: The telescopic frame one (1) is symmetrically provided with a slide groove one (2) on both sides, and a telescopic frame two (3) is slidably installed inside one side of the telescopic frame one (1). The telescopic frame two (3) is located on one side of the telescopic frame one (1) and has rollers one (4) symmetrically fixedly installed at both ends thereof, and the rollers one (4) are slidably connected to the slide groove one (2).
3. A multi-stage telescopic mechanical arm according to claim 2, characterized in that: The two sides of the telescopic frame 2 (3) are symmetrically provided with sliding grooves 2 (5); a telescopic frame 3 (6) is slidably installed inside one side of the telescopic frame 2 (3); rollers 2 (7) are symmetrically fixedly installed at both ends of one side of the telescopic frame 3 (6) located inside the telescopic frame 2 (3); and electric push rods (8) are fixedly installed at the bottom of the telescopic frame 1 (1), the telescopic frame 2 (3) and the telescopic frame 3 (6).
4. A multi-stage telescopic mechanical arm according to claim 3, characterized in that: The top of the telescopic frame (1) is symmetrically fixed with fixed blocks (9), and fixed insertion holes (10) are provided at the central positions of the opposite sides of the two sets of fixed blocks (9), and the fixed insertion holes (10) correspond to the fixed insertion rods (17).
5. The multi-stage telescopic mechanical arm according to claim 3, characterized in that: A connecting end plate (11) is provided at one end of the telescopic frame three (6), and connecting bolts (12) are provided at the four corners of the connecting end plate (11), and the connecting bolts (12) pass through the connecting end plate (11) to be connected to the telescopic frame three (6).
6. The multi-stage telescopic mechanical arm according to claim 1, characterized in that: The top of the connecting plate (20) is provided with a fixing bolt (22), and two groups of positioning screw holes (21) are respectively provided on both sides of the top of the connecting frame (13) and located between the two groups of limiting sliding grooves (16), and the fixing bolt (22) passes through the connecting plate (20) and is connected to the positioning screw holes (21).