Manipulator with protection mechanism
By designing multi-dimensional moving components and hydraulic clamping components, the shortcomings of robotic arms in terms of flexibility and safety are solved, enabling flexible adaptation and safety protection for multi-process operations, thereby improving production efficiency and equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU LANNA ENERGY SAVING TECH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
AI Technical Summary
Existing robotic arms are insufficient in terms of flexibility and safety protection, making it difficult to adapt to complex multi-process operations. Furthermore, their safety protection mechanisms are inadequate, making them prone to collisions and workpiece damage due to the gripping components.
A robotic arm with a protective mechanism was designed. Through a multi-dimensional moving component driven by an asynchronous motor and a distance sensor, it can achieve multi-axis rotation and flexible position adjustment. It is equipped with a hydraulic clamping component to stably clamp the workpiece, thereby improving the safety of the equipment and personnel.
It improves the flexibility and adaptability of robotic arms, reduces the risk of collisions, ensures the safety of equipment and personnel, and enhances the stability and production efficiency of workpiece clamping.
Smart Images
Figure CN224544572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of robotic arm technology, specifically to a robotic arm with a protective mechanism. Background Technology
[0002] In the field of modern industrial automation, robotic arms, as core equipment for realizing functions such as material handling, workpiece assembly, and precision operation, have been applied in multiple industries, including automobile manufacturing, electronic processing, logistics warehousing, and medical devices.
[0003] As industrial production demands increasing efficiency, precision, and safety, robotic arms not only need stable motion control capabilities and reliable workpiece clamping performance, but also need to incorporate effective protection mechanisms to prevent equipment damage or safety threats to operators caused by collisions with obstacles under complex working conditions.
[0004] However, existing robotic arms have significant shortcomings in practical applications: on the one hand, most robotic arms have limited motion adjustment dimensions, only able to move and rotate in a single direction or a few directions, resulting in poor flexibility and difficulty in adapting to the operational needs of multi-process and complex paths; on the other hand, the safety protection mechanisms of existing robotic arms are imperfect. Some devices are not equipped with distance detection devices, making it impossible to detect surrounding obstacles in advance, which can easily lead to collision accidents. The few robotic arms equipped with detection devices have fixed positions and orientations of their detection components, which cannot be flexibly adjusted according to different operational scenarios, resulting in blind spots in the detection range and poor protection effects; in addition, the gripping components of some robotic arms are prone to unstable workpiece gripping or damage to the workpiece, affecting production efficiency and product quality. In view of this, we propose a robotic arm with a protection mechanism. Utility Model Content
[0005] The purpose of this invention is to provide a robotic arm with a protective mechanism to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A robotic arm with a protective mechanism includes a base, on which a movable component is disposed, the movable component comprising:
[0008] An asynchronous motor is fixedly installed on the top of the base. A movable frame is fixedly installed on the top of the output end of the asynchronous motor. A first asynchronous motor is fixedly installed on the top of the movable frame. A threaded rod is fixedly installed on the bottom of the output end of the first asynchronous motor. The two ends of the threaded rod are rotatably installed inside the movable frame through bearing components. A bracket is threadedly fitted on the threaded rod. The outer wall of the bracket is fixedly connected to the outer wall of the sliding component of the slide rail. The slide rail is fixedly connected to the inner wall of the movable frame.
[0009] The second asynchronous motor is fixedly installed at the bottom of the bracket. A rotating rod is rotatably installed inside the bracket through bearing components. A transmission component is installed between the output shaft of the second asynchronous motor and the rotating rod. One end of the auxiliary frame is fixedly installed at the bottom of the rotating rod, and a third asynchronous motor is fixedly installed at the bottom of the other end of the auxiliary frame. The bottom of the output end of the third asynchronous motor is fixedly connected to the center of the top of the rectangular plate.
[0010] A sliding groove is provided on the rectangular plate. A bolt is slidably fitted inside the sliding groove. The bolt passes through one end of the connecting rod. A nut is threaded onto the bottom end of the bolt. A distance sensor is fixedly installed inside the other end of the connecting rod.
[0011] In a further embodiment, two sets of slide rails are provided, and the two sets of slide rails are mirror images of each other at both ends of the bracket, making the bracket move more stably.
[0012] In a further embodiment, the transmission component includes two pulleys and a transmission belt outside both of them.
[0013] In a further embodiment, four sets of slides, bolts, connecting rods, nuts, and distance sensors are provided, and the four sets of slides, bolts, connecting rods, nuts, and distance sensors are located at the four corners of the rectangular plate to better protect the robot arm.
[0014] In a further embodiment, a clamping assembly is provided on the rectangular plate. The clamping assembly includes a connecting frame. The connecting frame is fixedly installed at the center of the end of the rectangular plate away from the third asynchronous motor. A hydraulic rod is fixedly installed inside the connecting frame. The piston end of the hydraulic rod is fixedly connected to the center of the outer wall of the wedge block.
[0015] In a further embodiment, a movable block is slidably installed inside the connecting frame, and a wedge-shaped groove is provided on the movable block. The wedge-shaped block slides and fits inside the wedge-shaped groove, and a clamping block is fixedly installed at the bottom of the movable block.
[0016] In a further embodiment, two sets of the moving block, wedge groove, and clamping block are provided, and the two sets of the moving block, wedge groove, and clamping block are mirror images of each other at both ends of the connecting frame to better clamp the workpiece.
[0017] Compared with the prior art, this utility model provides a robotic arm with a protective mechanism, which has the following beneficial effects:
[0018] 1. This robotic arm with a protection mechanism, in order to better protect equipment and personnel, is equipped with a moving component. When the asynchronous motor on the base is started, the moving frame can rotate horizontally. When the first asynchronous motor is started, the threaded rod rotates, which, together with the slide rail, allows the support to move up and down. When the second asynchronous motor is started, the transmission component drives the rotating rod to rotate the auxiliary frame. When the third asynchronous motor on the auxiliary frame is started, the rectangular plate can rotate on multiple axes, improving flexibility. By moving the bolts inside the slide groove and tightening the nuts, the connecting rod can be fixed, thereby adjusting the position and orientation of the distance sensor, improving adaptability. Thus, when the robotic arm is about to contact an obstacle, it can stop, better protecting equipment and personnel.
[0019] 2. In order to improve the practicality of the robot arm with a protection mechanism, a clamping assembly is set up. When the hydraulic rod on the connecting frame is activated, the wedge block can move up and down, thereby cooperating with the wedge groove to allow the two moving blocks to move towards each other. When the wedge block moves upward, the two moving blocks move closer to each other, thereby allowing the two clamping blocks to move closer to each other to clamp the workpiece, thus improving the practicality of the robot arm. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;
[0022] Figure 3 This is a schematic diagram of the structure of this utility model;
[0023] Figure 4 This utility model Figure 3 Enlarged structural diagram of region A in the middle;
[0024] Figure 5 This is a schematic diagram of the structure of this utility model.
[0025] Explanation of icon numbers:
[0026] 1. Base;
[0027] 2. Moving component; 21. Asynchronous motor; 22. Moving frame; 23. First asynchronous motor; 24. Threaded rod; 25. Bracket; 26. Slide rail; 27. Second asynchronous motor; 28. Rotating rod; 29. Transmission component; 210. Auxiliary frame; 211. Third asynchronous motor; 212. Rectangular plate; 213. Slide groove; 214. Bolt; 215. Connecting rod; 216. Nut; 217. Distance sensor;
[0028] 3. Clamping assembly; 31. Connecting frame; 32. Hydraulic rod; 33. Wedge block; 34. Moving block; 35. Wedge groove; 36. Clamping block. Detailed Implementation
[0029] 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.
[0030] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.
[0031] Please see Figures 1-5 This utility model provides a technical solution:
[0032] A robotic arm with a protective mechanism includes a base 1.
[0033] In one embodiment of this utility model, a movable component 2 is provided on the base 1. The movable component 2 includes an asynchronous motor 21. The asynchronous motor 21 is fixedly installed on the top of the base 1. A movable frame 22 is fixedly installed on the top of the output end of the asynchronous motor 21. A first asynchronous motor 23 is fixedly installed on the top of the movable frame 22. A threaded rod 24 is fixedly installed on the bottom of the output end of the first asynchronous motor 23. The two ends of the threaded rod 24 are rotatably installed inside the movable frame 22 through bearing components. A bracket 25 is threadedly fitted on the threaded rod 24. The outer wall of the bracket 25 is fixedly connected to the outer wall of the sliding component of the slide rail 26. The slide rail 26 is fixedly connected to the inner wall of the movable frame 22. In addition, two sets of slide rails 26 are provided, and the two sets of slide rails 26 are mirror images of each other at both ends of the bracket 25, making the movement of the bracket 25 more stable. A second asynchronous motor 27 is fixedly installed on the bottom of the bracket 25. A rotating rod 28 is rotatably installed inside the bracket 25 through bearing components. The output shaft of the second asynchronous motor 27 and the rotating rod 28 are connected... The transmission mechanism is equipped with a transmission component 29. The transmission component 29 includes two transmission pulleys and transmission belts on their exteriors. One end of an auxiliary frame 210 is fixedly installed at the bottom of the rotating rod 28. A third asynchronous motor 211 is fixedly installed at the bottom of the other end of the auxiliary frame 210. The bottom of the output end of the third asynchronous motor 211 is fixedly connected to the top center of the rectangular plate 212. A through groove 213 is provided on the rectangular plate 212. A bolt 214 is slidably fitted inside the groove 213. The bolt 214 passes through one end of the connecting rod 215. A nut 216 is threaded onto the bottom of the bolt 214. A distance sensor 217 is fixedly installed inside the other end of the connecting rod 215. In addition, there are four sets of grooves 213, bolts 214, connecting rods 215, nuts 216 and distance sensors 217. The four sets of grooves 213, bolts 214, connecting rods 215, nuts 216 and distance sensors 217 are located at the four corners of the rectangular plate 212 to better protect the robot.
[0034] In this embodiment, to protect equipment and personnel, multi-dimensional adjustment and safety protection are achieved through the moving component 2. The asynchronous motor 21 on the base 1 is activated, causing the moving frame 22 to rotate horizontally. The first asynchronous motor 23 is activated, causing the threaded rod 24 to rotate. During this rotation, the threaded rod 24, guided by the slide rail 26, causes the support 25 to move vertically along the slide rail 26. The second asynchronous motor 27 is activated, and through the transmission component 29, it causes the rotating rod 28 to rotate. The rotation of 28 causes the auxiliary frame 210 to rotate accordingly; the third asynchronous motor 211 on the auxiliary frame 210 is started, and the operation of the third asynchronous motor 211 drives the rectangular plate 212 to achieve multi-axis rotation, thereby improving the manipulator's mobility. By moving the bolt 214 inside the slide 213 and adjusting it to a suitable position, the nut 216 can be tightened to fix the connecting rod 215, thereby realizing the adjustment of the position and orientation of the distance sensor 217, improving its ability to adapt to different working conditions. When the distance sensor 217 detects that the manipulator is about to contact an obstacle, it can trigger the manipulator to stop, thereby better protecting the equipment and personnel.
[0035] In one embodiment of this utility model, a clamping assembly 3 is provided on a rectangular plate 212. The clamping assembly 3 includes a connecting frame 31. The connecting frame 31 is fixedly installed at the center of one end of the rectangular plate 212 away from the third asynchronous motor 211. A hydraulic rod 32 is fixedly installed inside the connecting frame 31. The piston end of the hydraulic rod 32 is fixedly connected to the center of the outer wall of the wedge block 33. In addition, a moving block 34 is slidably installed inside the connecting frame 31. A wedge groove 35 is opened on the moving block 34. The wedge block 33 slides and fits inside the wedge groove 35. A clamping block 36 is fixedly installed at the bottom of the moving block 34. In addition, there are two sets of moving blocks 34, wedge grooves 35 and clamping blocks 36, and the two sets of moving blocks 34, wedge grooves 35 and clamping blocks 36 are mirror images of each other at both ends of the connecting frame 31 to better clamp the workpiece.
[0036] In this embodiment, to improve the practicality of the robot, the clamping assembly 3 achieves stable clamping of the workpiece. The hydraulic rod 32 on the connecting frame 31 is activated, causing the wedge block 33 to move vertically. During this movement, the wedge block 33 cooperates with the wedge groove 35, prompting the two moving blocks 34 to move in opposite directions. When the wedge block 33 moves upward, the two moving blocks 34 move closer together under the combined action of the wedge block 33 and the wedge groove 35, thereby causing the two clamping blocks 36 to move closer together, achieving workpiece clamping and thus improving the practicality of the robot.
[0037] In this application, all electrical components are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the asynchronous motor 21, the first asynchronous motor 23, the second asynchronous motor 27, the third asynchronous motor 211, the distance sensor 217, and the hydraulic rod 32. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. In addition, the standard parts are all conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art.
[0038] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.
[0039] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A robotic arm with a protective mechanism, comprising a base (1), characterized in that: A movable component (2) is provided on the base (1), the movable component (2) comprising: An asynchronous motor (21) is fixedly installed on the top of the base (1). A movable frame (22) is fixedly installed on the top of the output end of the asynchronous motor (21). A first asynchronous motor (23) is fixedly installed on the top of the movable frame (22). A threaded rod (24) is fixedly installed at the bottom of the output end of the first asynchronous motor (23). The two ends of the threaded rod (24) are rotatably installed inside the movable frame (22) through bearing components. A bracket (25) is threadedly fitted on the threaded rod (24). The outer wall of the bracket (25) is fixedly connected to the outer wall of the sliding component of the slide rail (26). The slide rail (26) is fixedly connected to the inner wall of the movable frame (22). The second asynchronous motor (27) is fixedly installed at the bottom of the bracket (25). A rotating rod (28) is rotatably installed inside the bracket (25) through a bearing. A transmission component (29) is installed between the output shaft of the second asynchronous motor (27) and the rotating rod (28). One end of an auxiliary frame (210) is fixedly installed at the bottom of the rotating rod (28). A third asynchronous motor (211) is fixedly installed at the bottom of the other end of the auxiliary frame (210). The bottom of the output end of the third asynchronous motor (211) is fixedly connected to the top center of the rectangular plate (212). A sliding groove (213) is provided on the rectangular plate (212). A bolt (214) is slidably fitted inside the sliding groove (213). The bolt (214) passes through one end of the connecting rod (215). A nut (216) is threaded on the bottom end of the bolt (214). A distance sensor (217) is fixedly installed inside the other end of the connecting rod (215).
2. The robotic arm with a protection mechanism according to claim 1, characterized in that: The slide rail (26) is provided in two sets, and the two sets of slide rail (26) are mirror images of each other at both ends of the bracket (25).
3. The robotic arm with a protection mechanism according to claim 1, characterized in that: The transmission component (29) includes two transmission pulleys and a transmission belt outside both of them.
4. The robotic arm with a protection mechanism according to claim 1, characterized in that: The slide (213), bolt (214), connecting rod (215), nut (216) and distance sensor (217) are provided in four sets, and the four sets of slide (213), bolt (214), connecting rod (215), nut (216) and distance sensor (217) are respectively located at the four corners of the rectangular plate (212).
5. The robotic arm with a protection mechanism according to claim 1, characterized in that: A clamping assembly (3) is provided on the rectangular plate (212). The clamping assembly (3) includes a connecting frame (31). The connecting frame (31) is fixedly installed at the center of one end of the rectangular plate (212) away from the third asynchronous motor (211). A hydraulic rod (32) is fixedly installed inside the connecting frame (31). The piston end of the hydraulic rod (32) is fixedly connected to the center of the outer wall of the wedge block (33).
6. The robotic arm with a protection mechanism according to claim 5, characterized in that: A movable block (34) is slidably installed inside the connecting frame (31). A wedge-shaped groove (35) is provided on the movable block (34). The wedge-shaped block (33) slides and fits inside the wedge-shaped groove (35). A clamping block (36) is fixedly installed at the bottom of the movable block (34).
7. The robotic arm with a protection mechanism according to claim 6, characterized in that: The movable block (34), wedge groove (35) and clamping block (36) are provided in two sets, and the two sets of movable blocks (34), wedge grooves (35) and clamping blocks (36) are mirror images of each other at both ends of the connecting frame (31).