Mechanical arm
By setting a torch box on the main shaft of the robot and using a cable fixing mechanism, the problems of torch box position affecting operation accuracy and cable entanglement are solved, achieving high-precision and safe operation of the robot.
Patent Information
- Application Number
- CN202520280013.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing technologies, the placement of the torch box of a robotic arm affects the robotic arm's operational accuracy and can easily lead to cable tangling, reducing operational flexibility.
The torch box is positioned on the spindle away from the workpiece and secured by a cable fixing mechanism, including a support rod, a limit block, and an adapter assembly, to prevent tangling and pulling of the cable.
It improves the operational accuracy and safety of robotic arms, reduces cable tangling and pulling, and extends cable lifespan.
Smart Images
Figure CN223834525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical automation technology, specifically to a robotic arm. Background Technology
[0002] In existing technologies, especially in industrial fields requiring precision drilling, cutting, or machining tasks, the design and functionality of robotic arms are crucial. Robotic arms typically comprise complex motion mechanisms, drive systems, and cabling to support the efficient operation of drilled parts, torches, or other tools. However, as the complexity and flexibility requirements of robotic arms increase, the weight of the torch housing controlling the drilled parts also increases with its functionality, affecting the operational accuracy of the robotic arm, and cable and harness management becomes a challenge.
[0003] In existing technologies, to prevent safety hazards caused by the tangling or pulling of the robot's cables, the torch box is usually placed at the end of the robot closer to the workpiece, thus reducing the difficulty of cable management. However, when a heavy torch box is placed close to the workpiece on the moving axis used to control the robot's operation, it often affects the workpiece's operational flexibility. Furthermore, placing the torch box further away from the workpiece increases the cable length, which often leads to cable tangling or pulling. Utility Model Content
[0004] One objective of this invention is to provide a robotic arm that solves the technical problem in the prior art where the location of the torch box affects the accuracy of the robotic arm's operation and easily leads to cable entanglement.
[0005] Another objective of this invention is to improve the dexterity of the robotic arm.
[0006] According to the purpose of this utility model, this utility model provides a robotic arm, comprising:
[0007] A moving mechanism includes a rotating shaft and a drilling component. The rotating shaft includes a main shaft and a telescopic shaft, with the two ends of the telescopic shaft connected to the main shaft and the drilling component, respectively.
[0008] A torch box is mounted on the spindle. The torch box has a cable that extends from the bottom of the torch box and the other end of the cable is connected to the drill bit.
[0009] A cable fixing mechanism is fixed to one side of the telescopic shaft. The cable fixing mechanism includes a fixing component, which is spaced at a preset distance from the drilling part. The fixing component includes a support rod and at least one limiting block. Each limiting block has a first limiting hole and a second limiting hole arranged in parallel. The support rod is configured to pass through the first limiting hole of all the limiting blocks. The cable passes through the second limiting hole of all the limiting blocks and is then connected to the drilling part.
[0010] Optionally, the cable fixing mechanism further includes:
[0011] An adapter assembly is located at one end of the fixing assembly near the drilling component. The adapter assembly includes a snap-fit component and a limiting component. The snap-fit component is sleeved on the periphery of the support rod. The limiting component is connected to the snap-fit component and has a third limiting hole for fixing the cable. A preset angle is formed between the third limiting hole and the second limiting hole so that the cable passing through the third limiting hole is located above the electrical connection end of the drilling component.
[0012] Optionally, the preset angle is any value within the range of 120°-150°.
[0013] Optionally, the snap-fit element is configured to move along the extension direction of the support rod toward one end away from or toward the drill bit.
[0014] Optionally, the connection between the limiting member and the snap-fit member is a clamping connection.
[0015] Optionally, the fixing component further includes:
[0016] A positioning block is located at the end of the support rod away from the drilling part. The positioning block includes a base plate and a clamping member. One end of the top surface of the base plate is used to fix the telescopic shaft, and the other end is used to fix the clamping member. The clamping member is used to clamp the support rod.
[0017] Optionally, the limiting block includes:
[0018] The first pipe clamp forms the first limiting hole;
[0019] The second pipe clamp forms the second limiting hole with the first pipe clamp.
[0020] Optionally, there are multiple limiting blocks, and the multiple limiting blocks are evenly spaced along the extension direction of the support rod.
[0021] This utility model's robotic arm reduces the load on the telescopic shaft and improves the robotic arm's operating accuracy by placing the torch box on the main shaft away from the cutting workpiece. At the same time, by setting up a cable fixing mechanism, it avoids the situation where excessively long cables become tangled, which could increase safety hazards. Thus, it improves the robotic arm's operating accuracy and safety.
[0022] Furthermore, the adapter component of this utility model is located at the end of the support rod near the cutting part. The limiting member is configured to protrude upward from the top of the snap-fit member and form a preset angle with the snap-fit member. The limiting member has a third limiting hole for fixing the cable. That is, the cable is configured to pass through the second limiting hole and the third limiting hole in sequence and connect to the cutting part. The limiting member and the cutting part are spaced at a preset distance, so that the cable between the limiting member and the cutting part forms a certain bending radius. This ensures that the cable can closely follow the positional change of the cutting part caused by the extension and retraction of the telescopic shaft, reduces the tension and torque on the cable end, extends the cable service life, and prevents the cable from scratching the surrounding environment.
[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0024] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
[0025] Figure 1 This is a schematic structural diagram of a robotic arm according to an embodiment of the present invention;
[0026] Figure 2 This is a schematic structural diagram of a cable fixing mechanism according to an embodiment of the present utility model;
[0027] Figure 3 This is a schematic installation diagram of a cable according to an embodiment of the present invention.
[0028] Figure label:
[0029] 100-Robotic arm, 10-Moving mechanism, 11-Rotating axis, 12-Drilling component, 121-Electrical connection terminal, 111-Spindle, 112-Telescopic axis, 113-Connecting axis, 20-Torch box, 21-Cable, 30-Cable fixing mechanism, 31-Fixing component, 311-Support rod, 312-Limiting block, 313-First limiting hole, 314-Second limiting hole, 32-Adapter component, 321-Snap-fit component, 322-Limiting component, 323-Third limiting hole, 315-Positioning block, 316-Base plate, 317-Clamping component, 318-First pipe clamp, 319-Second pipe clamp. Detailed Implementation
[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.
[0032] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.
[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0034] Figure 1 This is a schematic structural diagram of a robotic arm according to an embodiment of the present invention. Figure 2 This is a schematic structural diagram of a cable fixing mechanism according to an embodiment of the present invention. Figure 3 This is a schematic installation diagram of a cable according to an embodiment of the present invention.
[0035] like Figure 1 As shown, this utility model provides a robotic arm 100, which includes a moving mechanism 10, a torch box 20, and a cable fixing mechanism 30. The moving mechanism 10 includes a rotating shaft 11 and a drilling component 12. The rotating shaft 11 includes a main shaft 111 and a telescopic shaft 112. The two ends of the telescopic shaft 112 are respectively connected to the main shaft 111 and the drilling component 12. The torch box 20 is mounted on the main shaft 111 and has a cable 21 (see reference). Figure 3 The cable 21 is configured to protrude from the bottom of the self-cutting torch box 20, and the other end of the cable 21 is connected to the drilling component 12. The cable fixing mechanism 30 is fixed to one side of the telescopic shaft 112. The cable fixing mechanism 30 includes a fixing component 31, which is spaced at a preset distance from the drilling component 12. The fixing component 31 includes a support rod 311 and at least one limiting block 312. Each limiting block 312 has a first limiting hole 313 and a second limiting hole 314 arranged in parallel (see reference). Figure 2 The support rod 311 is configured to pass through the first limiting hole 313 of all the limiting blocks 312. The cable 21 passes through the second limiting hole 314 of the limiting block 312 and is connected to the drilling part 12, so that the support rod 311 fixes the cable 21 passing through the second limiting hole 314. Here, the spindle 111 is a multi-degree-of-freedom robotic arm, and the extension length of the spindle 111 can be adjusted according to actual needs. All the first limiting holes 313 are aligned, all the second limiting holes are aligned, and a connecting shaft 113 is also provided between the spindle 111 and the telescopic shaft 112. The two ends of the connecting shaft 113 are connected to the end of the spindle 111 and the end of the telescopic shaft 112, respectively.
[0036] In this embodiment, the robotic arm 100 includes a torch box 20 and a cable fixing mechanism 30. The torch box 20 is mounted on the main shaft 111 away from the cutting part 12, making the installation of the torch box 20 more stable, while reducing the load on the telescopic shaft 112 and improving the flexibility of the telescopic shaft 112 in controlling the cutting part 12, thereby improving the working accuracy of the cutting part 12. The cable fixing mechanism 30 is fixedly connected to one side of the telescopic shaft 112, and the limiting block 312 in the cable fixing mechanism 30 includes a second limiting hole 314 for fixing the cable 21 and a first limiting hole 313 for fixing the support rod 311, so that the cable 21 of the torch box 20 located on the main shaft 111 passes through the second limiting hole 314 and connects to the cutting part 12. The support rod 311 supports and fixes the cable 21 passing through the cable fixing mechanism 30, so that the cable 21 can be fixedly connected to the telescopic shaft 112 through the cable fixing mechanism 30, preventing the cable 21 from becoming too long and getting tangled, pulled or accidentally broken when the telescopic arm and the cutting part 12 move. In other words, by setting the torch box 20 on the spindle 111 away from the cutting workpiece 12, this embodiment can reduce the load on the telescopic shaft 112 and improve the working accuracy of the robotic arm 100. At the same time, by setting the cable fixing mechanism 30, the situation where the cable 21 is too long and gets tangled, which would increase the safety hazard, is avoided, thereby improving the working accuracy and working safety of the robotic arm 100.
[0037] In this embodiment, by setting the torch box 20 on the spindle 111 and allowing the cable 21 to extend directly from the bottom of the torch box 20 to the drilling component 12, the energy loss and signal interference during the transmission of the cable 21 are reduced, thereby improving the accuracy and efficiency of the robotic arm 100 when performing cutting, drilling and other tasks.
[0038] like Figure 2As shown, in a further embodiment, the cable fixing mechanism 30 further includes an adapter component 32, which is located at one end of the fixing component 31 near the drilling member 12. The adapter component 32 includes a snap-fit member 321 and a limiting member 322. The snap-fit member 321 is sleeved on the periphery of the support rod 311. The limiting member 322 is connected to the snap-fit member 321 and has a third limiting hole 323 for fixing the cable 21. A preset angle is formed between the third limiting hole 323 and the second limiting hole 314 so that the cable 21 passing through the third limiting hole 323 is located above the electrical connection end 121 of the drilling member 12. In this embodiment, the adapter component 32 is disposed at one end of the support rod 311 near the cutting member 12. The limiting member 322 is connected to the snap-fit member 321, and the limiting member 322 has a third limiting hole 323 for fixing the cable 21. That is, the cable 21 is configured to pass through the second limiting hole 314 and the third limiting hole 323 in sequence to connect with the cutting member 12, and the limiting member 322 and the cutting member 12 are spaced at a preset distance, so that the cable 21 between the limiting member 322 and the cutting member 12 forms a certain bending radius. This ensures that the cable 21 can closely follow the positional changes of the cutting member 12 caused by the extension and retraction of the telescopic shaft 112. This not only simplifies the layout of the cable 21, reduces the tension and torque on the end of the cable 21, and extends the service life of the cable 21, but also prevents the cable 21 from scratching the surrounding environment. At the same time, the setting of the limiting member 322 and the snap-fit member 321 gives the cable 21 between the cutting member 12 and the limiting member 322 a certain degree of mobility, improving the mobility of the cutting member 12 of the robotic arm 100. Here, the limiting component 322 can be a clamp or a pipe clamp.
[0039] like Figure 1 As shown, in a further embodiment, the preset angle is any value between 120° and 150°. In this embodiment, the preset angle formed between the limiting member 322 and the snap-fit member 321 can be 120°, 125°, 130°, 135°, 140°, 145°, or 150°, or any value between 120° and 150°. That is, when the preset angle formed between the limiting member 322 and the snap-fit member 321 is any value between 120° and 150°, it can be ensured that the cable 21 between the limiting member 322 and the cutting member 12 has a certain bending radius. By reasonably controlling the bending radius between the limiting member 322 and the cutting member 12, the safety of the cable 21 can be ensured, the space utilization rate can be optimized, and the fit and movement flexibility of the cable 21 and the cutting member 12 can be improved.
[0040] In a further embodiment, the snap-fit member 321 is configured to move along the extension direction of the support rod 311 toward one end away from or near the drill piece 12. In this embodiment, the snap-fit member 321 in the adapter assembly 32 is configured to move along the extension direction of the support rod 311 toward one end away from or near the drill piece 12, so that the adapter assembly 32 can cooperate with the positional movement of the cutting piece 12 caused by the extension and retraction of the telescopic shaft 112. That is, when the cutting piece 12 is controlled to move toward the spindle 111, the snap-fit member 321 of the adapter assembly 32 is configured to move toward the spindle 111, and when the cutting piece 12 is controlled to move toward the spindle 111, the snap-fit member 321 of the adapter assembly 32 is configured to move toward the spindle 111. This ensures that the bending radius of the cable 21 between the limiting member 322 and the cutting piece 12 is controlled within a reasonable range, thereby preventing the cable 21 from being too long and causing entanglement or too short and causing breakage.
[0041] like Figure 2 As shown, in a further embodiment, the connection between the limiting member 322 and the snap-fit member 321 is a clamping connection. In this embodiment, the clamping connection tightly fixes the limiting member 322 and the snap-fit member 321 together through physical clamping force. This connection method has high strength and rigidity, effectively resisting external impacts and vibrations, and ensuring the stability and reliability of the connection. Clamping connections are generally characterized by simple structure and convenient operation, and can be adjusted and optimized according to different connection requirements and working conditions. For example, the clamping force can be adjusted to adapt to the connection requirements of different materials, or the design of the clamping mechanism can be changed to adapt to the connection of components of different shapes and sizes. In this embodiment, the snap-fit member 321 includes a third pipe clamp and a fourth pipe clamp. The third pipe clamp forms a positioning hole that cooperates with the support rod 311. The positioning hole cooperates with the support rod 311 to connect the snap-fit member 321 and the support rod 311. The fourth pipe clamp is configured to fix the limiting member 322 to the third pipe clamp.
[0042] like Figure 2As shown, in a further embodiment, the fixing component 31 further includes a positioning block 315, which is located at the end of the support rod 311 away from the drilling part 12. The positioning block 315 includes a base plate 316 and a clamping member 317. One end of the top surface of the base plate 316 is used to fix the telescopic shaft 112, and the other end is used to fix the pipe clamp. The clamping member 317 is used to clamp the support rod 311. In this embodiment, the clamping member 317 is fixedly installed on the positioning block 315, and the clamping member 317 is used to clamp the support rod 311. The positioning block 315 is configured to install the telescopic shaft 112. That is, the fixing component 31 is fixedly connected to the telescopic shaft 112 through the positioning block 315, so that the fixing component 31 can move with the movement of the telescopic shaft 112. At the same time, the adapter component 32 is connected to the fixing component 31 through the snap-fit member 321, so that the limiting member 322 in the adapter component 32 adjusts the distance between itself and the cutting part 12 as the snap-fit member 321 moves, thereby adjusting the length of the cable 21 and avoiding the cable 21 being too long or too short, which would affect the working efficiency of the cutting part 12.
[0043] like Figure 2 As shown, in a further embodiment, the limiting block 312 includes a first clamp 318 and a second clamp 319. The first clamp 318 forms a first limiting hole 313, and the second clamp 319 and the first clamp 318 form a second limiting hole 314. In this embodiment, the first clamp 318 forms a first limiting hole 313 for fixing the support rod 311, and the second clamp 319 and the first clamp 318 form a second limiting hole 314 for fixing the cable 21. The extending direction of the first limiting hole 313 is parallel to the extending direction of the second limiting hole 314, so that when the cable 21 passes through the second limiting hole 314, it is parallel to the support rod 311, so that the support rod 311 supports and fixes the cable 21 passing through the second limiting hole 314, preventing the cable 21 from getting tangled or pulled during the operation of the robotic arm 100.
[0044] In a further embodiment, there are multiple limiting blocks 312, which are evenly spaced along the extension direction of the support rod 311. This allows the support rod 311 to support the cable 21 when it passes through the second positioning hole of the multiple limiting blocks 312, while preventing the cable 21 from sagging and improving the safety of the cable 21.
[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A robotic arm, characterized in that, include: A moving mechanism includes a rotating shaft and a drilling component. The rotating shaft includes a main shaft and a telescopic shaft, with the two ends of the telescopic shaft connected to the main shaft and the drilling component, respectively. A torch box is mounted on the spindle. The torch box has a cable that extends from the bottom of the torch box and the other end of the cable is connected to the drill bit. A cable fixing mechanism is fixed to one side of the telescopic shaft. The cable fixing mechanism includes a fixing component, which is spaced at a preset distance from the drilling part. The fixing component includes a support rod and at least one limiting block. Each limiting block has a first limiting hole and a second limiting hole arranged in parallel. The support rod is configured to pass through the first limiting hole of all the limiting blocks. The cable passes through the second limiting hole of all the limiting blocks and is then connected to the drilling part.
2. The robotic arm according to claim 1, characterized in that, The cable fixing mechanism also includes: An adapter assembly is located at one end of the fixing assembly near the drilling component. The adapter assembly includes a snap-fit component and a limiting component. The snap-fit component is sleeved on the periphery of the support rod. The limiting component is connected to the snap-fit component and has a third limiting hole for fixing the cable. A preset angle is formed between the third limiting hole and the second limiting hole so that the cable passing through the third limiting hole is located above the electrical connection end of the drilling component.
3. The robotic arm according to claim 2, characterized in that, The preset angle is any value within the range of 120°-150°.
4. The robotic arm according to claim 3, characterized in that, The snap-fit element is configured to move along the extension direction of the support rod toward one end away from or toward the drill bit.
5. The robotic arm according to claim 4, characterized in that, The connection between the limiting member and the snap-fit member is a clamping connection.
6. The robotic arm according to claim 5, characterized in that, The fixing component also includes: A positioning block is located at the end of the support rod away from the drilling part. The positioning block includes a base plate and a clamping member. One end of the top surface of the base plate is used to fix the telescopic shaft, and the other end is used to fix the clamping member. The clamping member is used to clamp the support rod.
7. The robotic arm according to claim 6, characterized in that, The limiting block includes: The first pipe clamp forms the first limiting hole; The second pipe clamp forms the second limiting hole with the first pipe clamp.
8. The robotic arm according to any one of claims 1-7, characterized in that, The number of limiting blocks is multiple, and the multiple limiting blocks are evenly spaced along the extension direction of the support rod.