Rotary mechanical arm for production of cross-flow fan blades

By introducing limiting reinforcement and stabilization protection mechanisms into the rotating robotic arm, the problem of robotic arm displacement in the production of cross-flow fan blades was solved, thereby improving structural rigidity and equipment stability.

CN224334454UActive Publication Date: 2026-06-09ZHENGZHOU CENTURY JINGXIN MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU CENTURY JINGXIN MASCH MFG CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-09

Smart Images

  • Figure CN224334454U_ABST
    Figure CN224334454U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of rotary robotic arm technology, and discloses a rotary robotic arm for the production of cross-flow fan blades. It includes a mounting frame, with a hydraulic push rod extending inwards fixed to one side of the mounting frame. One end of the output shaft of the hydraulic push rod is fixed to the main body of the rotary robotic arm, and a limit and reinforcement mechanism is provided on the outer side of the main body of the rotary robotic arm. This utility model, by setting a limit and reinforcement mechanism, uses a guide mounting sleeve to guide and limit movement, dispersing the dynamic load during the movement of the main body of the rotary robotic arm, reducing vibration caused by inertia or external impact, and achieving the purpose of enhancing structural rigidity and anti-interference ability, which is beneficial to the production of cross-flow fan blades. The stabilizing protection mechanism facilitates the installation and fixing of the connecting protective sleeve, and provides stable shielding and reinforcement to the outer side of the rotating connecting shaft connection, improving the stability of equipment operation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of rotary robotic arm technology, and in particular to a rotary robotic arm for producing cross-flow fan blades. Background Technology

[0002] A cross-flow fan blade is a special type of fan blade designed to achieve efficient and low-noise airflow. When the impeller rotates, the airflow enters through the blade openings and forms a complex flow path inside: the airflow is accelerated by centrifugal force as it passes through the gaps between the blades, and at the same time, an unstable velocity field and vortex effect are generated inside the impeller. The center of the vortex is usually located near the volute tongue. This flow characteristic causes the airflow to circulate at the output end, and the outer circumferential velocity exhibits a gradient distribution. A robotic arm is required during the production and processing of cross-flow fan blades.

[0003] However, existing rotary robotic arms are prone to small horizontal displacements during operation, affecting stability and resulting in weak structural rigidity and interference resistance. Therefore, those skilled in the art have provided a rotary robotic arm for the production of cross-flow fan blades to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rotary robotic arm for the production of cross-flow fan blades.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rotary robotic arm for producing cross-flow fan blades, comprising a mounting frame, a hydraulic push rod extending into the interior fixed on one side of the mounting frame, a rotary robotic arm body fixed at one end of the output shaft of the hydraulic push rod, a limit reinforcement mechanism provided on the outer side of the rotary robotic arm body, a rotating connecting shaft fitted on one side of the mounting frame, and a stabilization protection mechanism provided on the inner wall of one side of the mounting frame.

[0006] The limiting and reinforcing mechanism includes a guide fixing rod, one end of which is fixed with a guide fixing seat, and the other end of which is installed with a guide connecting seat. A guide mounting sleeve is movably sleeved on the outer side of the guide fixing rod. A mounting pad is fixed at the bottom of the guide fixing seat and the guide connecting seat. A limiting baffle is fixed on the outer side of the guide fixing seat and the guide connecting seat. A positioning threaded rod is fixed on the outer side of the limiting baffle. A positioning nut is threaded onto the outer side of the positioning threaded rod. A limiting connecting sleeve is fixed on the outer side of the mounting frame.

[0007] As a further description of the above technical solution: the inside of the limiting connecting sleeve is provided with a groove, the size of which is adapted to the size of the positioning threaded rod.

[0008] By adopting the above technical solution, the positioning threaded rod can be movably inserted into the groove of the limiting connecting sleeve.

[0009] As a further description of the above technical solution: one side of the positioning nut is fitted with the outer side of the limiting connecting sleeve, and the outer side of the positioning nut is provided with anti-slip texture.

[0010] By adopting the above technical solution, it is convenient for users to rotate the positioning nut.

[0011] As a further description of the above technical solution: the mounting pad has a threaded hole inside, and the mounting pad is fixedly connected to the mounting frame by bolts.

[0012] By adopting the above technical solution, the mounting pad and the mounting frame can be fixed with bolts.

[0013] As a further description of the above technical solution: the guide mounting sleeve has a through hole inside, the size of which is adapted to the size of the guide fixing rod.

[0014] As a further description of the above technical solution: the stabilization protection mechanism includes a connecting protective sleeve, a connecting fixing pad fixed on one side of the connecting protective sleeve, a limit reinforcement sleeve fixed on the top of the mounting frame, an assembly fixing column installed on the top of the mounting frame, a limit pad fixed on the outer side of the assembly fixing column, a rotating connecting plate connected to the outer side of the assembly fixing column via a bearing, and a movable semi-threaded column fixed on the top of the rotating connecting plate.

[0015] As a further description of the above technical solution: a fixed semi-threaded post is installed on the top of the connecting fixing pad, and a metal nut is threadedly connected to the outer side of the movable semi-threaded post and the fixed semi-threaded post.

[0016] As a further description of the above technical solution: the connecting protective sleeve is movably sleeved on the outside of the rotating connecting shaft, and the bottom surface of the connecting fixing pad is in contact with the mounting frame.

[0017] This utility model has the following beneficial effects:

[0018] 1. Compared with the existing technology, the rotary robotic arm for producing cross-flow fan blades, by setting a limit and reinforcement mechanism and using a guide mounting sleeve to play a guiding and limiting role, can disperse the dynamic load during the movement of the main body of the rotary robotic arm, reduce the vibration caused by inertia or external force impact, and achieve the purpose of enhancing structural rigidity and anti-interference ability, which is conducive to the production of cross-flow fan blades.

[0019] 2. Compared with the existing technology, the rotary robotic arm for producing cross-flow fan blades is equipped with a stabilizing protection mechanism, which facilitates the installation and fixing of the connecting protective sleeve. The connecting protective sleeve provides stable shielding and reinforcement to the outside of the rotating connecting shaft connection part, thereby improving the stability of equipment operation. Attached Figure Description

[0020] Figure 1 A perspective view of a rotary robotic arm for producing cross-flow fan blades according to this utility model;

[0021] Figure 2 This is a schematic diagram of the limiting and reinforcing mechanism of a rotary robotic arm for producing cross-flow fan blades, as proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the outer structure of the limiting baffle plate of a rotary robotic arm for producing cross-flow fan blades, as proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the stabilization and protection mechanism of a rotary robotic arm for producing cross-flow fan blades, as proposed in this utility model.

[0024] Legend:

[0025] 1. Mounting frame; 2. Hydraulic push rod; 3. Rotary robotic arm body; 4. Limiting and reinforcing mechanism; 41. Guide fixing rod; 42. Guide fixing seat; 43. Guide connecting seat; 44. Guide mounting sleeve; 45. Mounting pad; 46. Limiting baffle plate; 47. Positioning threaded rod; 48. Positioning nut; 49. Limiting connecting sleeve; 5. Rotating connecting shaft; 6. Stabilizing protection mechanism; 61. Connecting protective sleeve; 62. Connecting fixing pad; 63. Limiting and reinforcing sleeve; 64. Assembly fixing column; 65. Limiting pad; 66. Rotating connecting plate; 67. Movable semi-threaded column; 68. Fixed semi-threaded column; 69. Metal nut. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1-4The present invention provides a rotary robotic arm for producing cross-flow fan blades, including a mounting frame 1, a hydraulic push rod 2 extending into the interior fixed on one side of the mounting frame 1, a rotary robotic arm body 3 fixed at one end of the output shaft of the hydraulic push rod 2, a limit reinforcement mechanism 4 provided on the outer side of the rotary robotic arm body 3, a rotating connecting shaft 5 installed on one side of the mounting frame 1, and a stabilization protection mechanism 6 provided on the inner wall of one side of the mounting frame 1.

[0028] The limiting and reinforcing mechanism 4 includes a guide fixing rod 41, a guide fixing seat 42 fixed to one end of the guide fixing rod 41, a guide connecting seat 43 installed at the other end of the guide fixing rod 41, a guide mounting sleeve 44 movably sleeved on the outer side of the guide fixing rod 41, a mounting pad 45 fixed to the bottom of the guide fixing seat 42 and the guide connecting seat 43, a limiting baffle plate 46 fixed to the outer side of the guide fixing seat 42 and the guide connecting seat 43, a positioning threaded rod 47 fixed to the outer side of the limiting baffle plate 46, a positioning nut 48 threadedly connected to the outer side of the positioning threaded rod 47, a limiting connecting sleeve 49 fixed to the outer side of the mounting frame 1, and a limiting connecting sleeve 49. The inside of the 9 has a groove, the size of which is adapted to the size of the positioning threaded rod 47, allowing the positioning threaded rod 47 to be movably inserted into the groove of the limiting connecting sleeve 49. One side of the positioning nut 48 fits against the outer side of the limiting connecting sleeve 49, and the outer side of the positioning nut 48 is provided with anti-slip texture, making it easy for the user to rotate the positioning nut 48. The inside of the mounting pad 45 has a threaded hole, and the mounting pad 45 is fixedly connected to the mounting frame 1 by bolts. The mounting pad 45 and the mounting frame 1 can be fixed by bolts. The inside of the guide mounting sleeve 44 has a through hole, the size of which is adapted to the size of the guide fixing rod 41.

[0029] The stabilization protection mechanism 6 includes a connecting protective sleeve 61, a connecting fixing pad 62 fixed on one side of the connecting protective sleeve 61, a limit reinforcement sleeve 63 fixed on the top of the mounting frame 1, an assembly fixing post 64 installed on the top of the mounting frame 1, a limit pad 65 fixed on the outer side of the assembly fixing post 64, a rotating connecting plate 66 connected to the outer side of the assembly fixing post 64 via a bearing, a movable semi-threaded post 67 fixed on the top of the rotating connecting plate 66, a fixed semi-threaded post 68 installed on the top of the connecting fixing pad 62, and a metal nut 69 threadedly connected to the outer side of the movable semi-threaded post 67 and the fixed semi-threaded post 68. The connecting protective sleeve 61 is movably sleeved on the outer side of the rotating connecting shaft 5, and the lower bottom surface of the connecting fixing pad 62 is in contact with the mounting frame 1.

[0030] Working Principle: When the rotary robotic arm body 3 is in use, it can perform operations such as clamping and placing during the production of cross-flow fan blades. After the hydraulic push rod 2 is activated, it can drive the rotary robotic arm body 3 to move horizontally. At this time, the guide mounting sleeve 44 on the outside of the rotary robotic arm body 3 moves outside the guide fixing rod 41. At the same time, the guide fixing seats 42 and guide connecting seats 43 at both ends of the guide fixing rod 41 are fixedly connected to the mounting frame 1 by bolts. The guide fixing seats 42 and guide connecting seats 43 are also fixed to the outside of the guide fixing seats 42 and guide connecting seats 43. The limit blocking plates 46 pass through the corresponding limit connecting sleeves 49, and the positioning threaded rod 47 on the outside of the limit blocking plate 46 is movably inserted into the groove of the limit connecting sleeve 49. The positioning threaded rod 47 is also threadedly connected to the outside of the positioning nut 48. The corresponding surface of the positioning nut 48 fits against the limit connecting sleeve 49, ensuring that the connection between the guide fixing seats 42 and guide connecting seats 43 and the mounting frame 1 is stable. The guide mounting sleeve 44 plays a guiding role. The limiting function can disperse the dynamic load during the movement of the main body 3 of the rotating robotic arm, reduce vibration caused by inertia or external impact, and achieve the purpose of enhancing structural rigidity and anti-interference ability, which is conducive to the production of cross-flow fan blades. This device is equipped with a stabilizing protection mechanism 6. When the outer side of the mounting frame 1 is connected to the corresponding rotating mechanism through the rotating connecting shaft 5, the rotation function can be realized. During rotation, the connecting protective sleeve 61 serves to reinforce the connection part. The connecting fixing pad 62 on the outer side of the connecting protective sleeve 61 is in contact with the corresponding surface of the mounting frame 1. The rotating connecting plate 66 is rotated to make the corresponding surfaces of the movable half-threaded column 67 and the fixed half-threaded column 68 fit together. Finally, the metal nut 69 is used to thread the movable half-threaded column 67 and the fixed half-threaded column 68, which conveniently completes the installation and fixing of the connecting protective sleeve 61. The connecting protective sleeve 61 provides stable shielding and reinforcement to the outer side of the connection part of the rotating connecting shaft 5, improving the stability of equipment operation.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary robotic arm for producing cross-flow fan blades, comprising a mounting frame (1), characterized in that: A hydraulic push rod (2) extending into the interior is fixed on one side of the mounting frame (1). A rotating mechanical arm body (3) is fixed at one end of the output shaft of the hydraulic push rod (2). A limit reinforcement mechanism (4) is provided on the outer side of the rotating mechanical arm body (3). A rotating connecting shaft (5) is installed on one side of the mounting frame (1). A stabilizing protection mechanism (6) is provided on the inner wall of one side of the mounting frame (1). The limiting and reinforcing mechanism (4) includes a guide fixing rod (41), one end of which is fixed with a guide fixing seat (42), and one end of which is installed with a guide connecting seat (43). A guide mounting sleeve (44) is movably sleeved on the outside of the guide fixing rod (41). A mounting pad (45) is fixed at the bottom of the guide fixing seat (42) and the guide connecting seat (43). A limiting baffle plate (46) is fixed on the outside of the guide fixing seat (42) and the guide connecting seat (43). A positioning threaded rod (47) is fixed on the outside of the limiting baffle plate (46). A positioning nut (48) is threaded onto the outside of the positioning threaded rod (47). A limiting connecting sleeve (49) is fixed on the outside of the mounting frame (1).

2. The rotary robotic arm for producing cross-flow fan blades according to claim 1, characterized in that: The limiting connecting sleeve (49) has a groove inside, the size of which is adapted to the size of the positioning threaded rod (47).

3. The rotary robotic arm for producing cross-flow fan blades according to claim 1, characterized in that: One side of the positioning nut (48) is fitted with the outer side of the limiting connecting sleeve (49), and the outer side of the positioning nut (48) is provided with anti-slip texture.

4. The rotary robotic arm for producing cross-flow fan blades according to claim 1, characterized in that: The mounting pad (45) has a threaded hole inside, and the mounting pad (45) is fixedly connected to the mounting frame (1) by bolts.

5. A rotary robotic arm for producing cross-flow fan blades according to claim 1, characterized in that: The guide mounting sleeve (44) has a through hole inside, the size of which is adapted to the size of the guide fixing rod (41).

6. The rotary robotic arm for producing cross-flow fan blades according to claim 1, characterized in that: The stabilizing protection mechanism (6) includes a connecting protective sleeve (61), a connecting fixing pad (62) is fixed on one side of the connecting protective sleeve (61), a limiting reinforcement sleeve (63) is fixed on the top of the mounting frame (1), an assembly fixing column (64) is installed on the top of the mounting frame (1), a limiting pad (65) is fixed on the outside of the assembly fixing column (64), a rotating connecting plate (66) is connected to the outside of the assembly fixing column (64) through a bearing, and a movable semi-threaded column (67) is fixed on the top of the rotating connecting plate (66).

7. A rotary robotic arm for producing cross-flow fan blades according to claim 6, characterized in that: The top of the connecting fixing pad (62) is equipped with a fixed half-threaded post (68), and the outer sides of the movable half-threaded post (67) and the fixed half-threaded post (68) are threaded with metal nuts (69).

8. A rotary robotic arm for producing cross-flow fan blades according to claim 7, characterized in that: The connecting protective sleeve (61) is movably sleeved on the outside of the rotating connecting shaft (5), and the bottom surface of the connecting fixing pad (62) is in contact with the mounting frame (1).