Mechanical arm joint protection structure
Patent Information
- Application Number
- CN202522235765.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-22
AI Technical Summary
[0003]现有的一些机械臂在运动作业时,机械臂之间连接的关节处裸露在外部,使得对于在较恶劣环境工作的机械臂关节内时常进入灰尘,长此以往会影响机械臂的运行精度,甚至可能无法正常运行
(1)在本实用新型中,机械臂本体的关节处通过橡胶防护套的设置,起到保护机械臂本体的关节处的作用,达到防尘的作用,且橡胶防护套侧壁设有加强杆,加强杆为现有技术中的韧性材料组成,有利于增加橡胶防护套的坚韧度,有利于降低橡胶防护套因弯折而产生的损坏度,有利于保持橡胶防护套的弯折效果。
Smart Images

Figure CN224751369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of robotic arm technology, and more specifically, to a joint protection structure for a robotic arm. Background Technology
[0002] Robotic arms are the most widely used automated mechanical devices in the field of robotics, found in industrial manufacturing, medical treatment, entertainment services, military, semiconductor manufacturing, and space exploration. Although they vary in form, they all share a common characteristic: they can receive commands and precisely position themselves at a point in three-dimensional or two-dimensional space to perform tasks.
[0003] In some existing robotic arms, the joints connecting the arms are exposed during operation, allowing dust to easily enter the joints, especially in harsh environments. Over time, this can affect the robotic arm's operational accuracy and may even prevent it from functioning properly. To address this, we propose a robotic arm joint protection structure. Utility Model Content
[0004] To solve the above problems, this utility model provides a protective structure for a robotic arm joint, adopting the following technical solution: A protective structure for a robotic arm joint includes a robotic arm body. Each side wall of the robotic arm body is fitted with a collar, and an assembly ring is provided on the opposite side of each collar. A rubber protective sleeve is fixedly connected between two assembly rings. The collars and assembly rings are all fixed to the robotic arm body by bolts. A positioning component is provided between the assembly rings and collars on the same side.
[0005] By adopting the above technical solution, when using the product, the operator places the rubber protective sleeve between two collars and fixes the same-side assembly ring and collar with the positioning component, which can fix the rubber protective sleeve. The positioning component makes it easy to replace the rubber protective sleeve when it is damaged. The rubber protective sleeve and assembly ring are fixed by heat fusion and further secured by existing fasteners, which helps to maintain the stability of the rubber protective sleeve installation. Afterwards, only the damaged rubber protective sleeve needs to be replaced, reducing material waste. After the rubber protective sleeve is assembled, the operator puts the collar and assembly ring on the side wall of the robot arm body, so that the rubber protective sleeve is located at the joint of the robot arm body. The collar and assembly ring are fixed to the robot arm body with bolts. The rubber protective sleeve can protect the joint of the robot arm body and help prevent dust and other factors from affecting the subsequent operation of the robot arm body.
[0006] Furthermore, the positioning component includes multiple inserts fixedly installed on opposite sides of the two assembly rings. The opposite side of the two collars has a slot that matches the insert on the same side. Movable grooves are provided on the inner walls of both sides of the slot. Limiting components are provided between the insert and the slot on the same side.
[0007] By adopting the above technical solution, after the worker places the assembly ring between the two collars, the insert block installed on one side of the assembly ring engages with the slot opened on the side wall of the collar on the same side, which serves to position the collar and the assembly ring. In addition, the slot is equipped with a limiting component, which restricts the positioning insert block, which helps to maintain the stability of the collar and the assembly ring and facilitates subsequent fixing.
[0008] Furthermore, the limiting component includes a limiting rod that is slidably installed in the movable groove, a spring that is fixedly installed between the limiting rod and the inner wall of the movable groove on the opposite side, and a limiting groove that matches the limiting rod on the same side is opened on the side wall of the insert block.
[0009] By adopting the above technical solution, when the insert block moves into the slot on the same side, the insert block pushes the limiting rod on the same side to slide into the movable groove on the same side. When the insert block and the slot are engaged, the limiting rod moves outward of the movable groove under the push of the spring on the same side, and engages with the limiting groove opened on the side wall of the insert block on the same side, so as to achieve the function of positioning the insert block.
[0010] Furthermore, the sidewall of the rubber protective sleeve is provided with multiple reinforcing rods arranged in a ring array.
[0011] By adopting the above technical solution, the sidewall of the rubber protective sleeve is reinforced with a reinforcing rod. The reinforcing rod is made of a tough material, which is available in the prior art. This helps to increase the toughness of the rubber protective sleeve and maintain its performance.
[0012] Furthermore, the sidewall of the rubber protective sleeve has multiple sets of heat dissipation holes arranged in a linear array. The heat dissipation holes in the same set are arranged in a ring array on the sidewall of the rubber protective sleeve, and each heat dissipation hole is provided with filter cloth.
[0013] By adopting the above technical solution, the side wall of the rubber protective sleeve is provided with heat dissipation holes to facilitate heat dissipation and achieve the effect of heat dissipation. In addition, filter cloths are provided in the heat dissipation holes to filter dust, so that the rubber protective sleeve has the effect of dust prevention and heat dissipation.
[0014] Furthermore, sealing gaskets are fixedly installed on the inner sides of both the collar and the assembly ring.
[0015] By adopting the above technical solution, sealing gaskets are provided on the inner walls of both the collar and the assembly ring. The sealing gaskets contact the side wall of the robotic arm body, which helps to reduce the wear between the collar, the assembly ring and the robotic arm body, and also helps to increase the sealing performance of the collar, the assembly ring and the robotic arm body, thereby protecting the robotic arm body and increasing the stability of the rubber protective sleeve installation.
[0016] In summary, this utility model has the following beneficial technical effects: (1) In this utility model, the joints of the robotic arm body are protected by rubber protective sleeves, which can protect the joints of the robotic arm body and achieve dust prevention. The side wall of the rubber protective sleeve is provided with reinforcing rods, which are made of tough materials in the prior art. This helps to increase the toughness of the rubber protective sleeve, reduce the damage caused by bending, and maintain the bending effect of the rubber protective sleeve.
[0017] (2) In this utility model, the positioning component and the limiting component are set between the same side collar and the assembly ring to play a positioning role, which helps to maintain the accuracy of the fit between the collar and the assembly ring and facilitates subsequent fixing. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the joint protection structure of the robotic arm according to this utility model; Figure 2 This is a diagram illustrating the collar, assembly ring, and rubber protective sleeve in the robotic arm joint protective structure of this utility model. Figure 3 This is a cross-sectional view of the collar in the robotic arm joint protection structure of this utility model; Figure 4 This utility model relates to a protective structure for the joints of a robotic arm. Figure 3 A magnified view of A in the middle.
[0019] Explanation of the labels in the diagram: 1. Robotic arm body; 2. Collar; 3. Assembly ring; 4. Rubber protective sleeve; 5. Reinforcing rod; 6. Slot; 7. Insert block; 8. Movable groove; 9. Spring; 10. Limiting rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.
[0024] Please see Figure 1-4 A protective structure for a robotic arm joint includes a robotic arm body 1. Each side wall of the robotic arm body 1 is fitted with a collar 2. Each side of the collar 2 is provided with an assembly ring 3. A rubber protective sleeve 4 is fixedly connected between the two assembly rings 3. The collar 2 and the assembly ring 3 are all fixed to the robotic arm body 1 by bolts.
[0025] Positioning components are provided between the same-side assembly ring 3 and collar 2. The positioning components include multiple insert blocks 7 fixedly installed on opposite sides of the two assembly rings 3. The opposite side of the two collars 2 is provided with slots 6 that match the insert blocks 7 on the same side. Movable grooves 8 are provided on both sides of the inner wall of the slot 6. Limiting components are provided between the insert block 7 and the same-side slot 6. The limiting components include a limiting rod 10 that is slidably installed in the movable groove 8. A spring 9 is fixedly installed between the limiting rod 10 and the inner wall of the opposite side of the movable groove 8 on the same side. The side wall of the insert block 7 is provided with a limiting groove that matches the limiting rod 10 on the same side.
[0026] When using the product, the worker places the rubber protective sleeve 4 between the two collars 2. The worker assembles the ring 3, and the insert 7 installed on one side engages with the slot 6 opened on the side wall of the collar 2 on the same side, which serves to position the collar 2 and the assembly ring 3. When the insert 7 moves into the slot 6 on the same side, the insert 7 pushes the limit rod 10 on the same side to slide into the movable groove 8 on the same side. After the insert 7 and the slot 6 are engaged, the limit rod 10 moves outward of the movable groove 8 under the push of the spring 9 on the same side, and the limit rod 10 engages with the slot 6 opened on the side wall of the insert 7 on the same side. The limiting groove engages, achieving the function of positioning insert 7, which helps maintain the stability of the fit between collar 2 and assembly ring 3, facilitating subsequent fixing. After the rubber protective sleeve 4 is assembled, the worker puts collar 2 and assembly ring 3 on the side wall of the robotic arm body 1, so that the rubber protective sleeve 4 is located at the joint of the robotic arm body 1. Both collar 2 and assembly ring 3 are fixed to the robotic arm body 1 by bolts. The rubber protective sleeve 4 can protect the joint of the robotic arm body 1, helping to avoid dust and other factors from affecting the subsequent operation of the robotic arm body 1.
[0027] The sidewall of the rubber protective sleeve 4 is provided with multiple reinforcing rods 5 arranged in a ring array. The rubber protective sleeve 4 is tough, which facilitates the joint bending of the robotic arm body 1. The sidewall of the rubber protective sleeve 4 is provided with reinforcing rods 5, which are made of tough materials in the prior art, which helps to increase the toughness of the rubber protective sleeve 4 and help maintain the performance of the rubber protective sleeve 4.
[0028] The side wall of the rubber protective sleeve 4 has multiple sets of heat dissipation holes arranged in a straight line array. The heat dissipation holes in the same set are arranged in a ring array on the side wall of the rubber protective sleeve 4. Each heat dissipation hole is equipped with a filter cloth. The heat dissipation holes on the side wall of the rubber protective sleeve 4 facilitate the conduction of heat and achieve the heat dissipation effect. In addition, the filter cloth in each heat dissipation hole is equipped with a filter cloth to filter dust, so that the rubber protective sleeve 4 has a dustproof effect and a heat dissipation function.
[0029] Sealing gaskets are fixedly installed on the inner sides of both collar 2 and assembly ring 3. Sealing gaskets are provided on the inner walls of collar 2 and assembly ring 3. The sealing gaskets are in contact with the side wall of the robotic arm body 1, which helps to reduce the wear between collar 2, assembly ring 3 and robotic arm body 1, and also helps to increase the sealing performance of collar 2, assembly ring 3 and robotic arm body 1, thereby protecting the robotic arm body 1 and increasing the stability of the rubber protective sleeve 4 installation.
[0030] The implementation principle of this utility model embodiment is as follows: When using the product, the operator places the rubber protective sleeve 4 between two collars 2, and fixes the same-side assembly ring 3 and collar 2 through the positioning component, which can fix the rubber protective sleeve 4. The positioning component makes it easy to replace the rubber protective sleeve 4 when it is damaged. The rubber protective sleeve 4 and the assembly ring 3 are fixed by heat fusion and further fixed by existing fasteners, which helps to maintain the stability of the installation of the rubber protective sleeve 4. Afterwards, only the damaged rubber protective sleeve 4 needs to be replaced, which reduces material waste. After the rubber protective sleeve 4 is assembled, the operator puts the collar 2 and the assembly ring 3 on the side wall of the robotic arm body 1, so that the rubber protective sleeve 4 is located at the joint of the robotic arm body 1. The collar 2 and the assembly ring 3 are fixed to the robotic arm body 1 by bolts. The rubber protective sleeve 4 can protect the joint of the robotic arm body 1 and help to avoid dust and other factors from affecting the subsequent operation of the robotic arm body 1.
[0031] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A protective structure for a robotic arm joint, characterized in that: The system includes a robotic arm body (1), with collars (2) fitted on the side walls of the robotic arm body (1). On the opposite side of each collar (2), there is an assembly ring (3). A rubber protective sleeve (4) is fixedly connected between the two assembly rings (3). The collars (2) and the assembly rings (3) are fixed to the robotic arm body (1) by bolts. A positioning component is provided between the assembly rings (3) and the collars (2) on the same side.
2. The robotic arm joint protection structure according to claim 1, characterized in that: The positioning component includes multiple inserts (7) fixedly installed on opposite sides of the two assembly rings (3). The two collars (2) have slots (6) on opposite sides that match the inserts (7) on the same side. The inner walls of both sides of the slots (6) are provided with movable grooves (8). Limiting components are provided between the inserts (7) and the slots (6) on the same side.
3. The robotic arm joint protection structure according to claim 2, characterized in that: The limiting component includes a limiting rod (10) that is slidably installed in the movable groove (8). A spring (9) is fixedly installed between the limiting rod (10) and the inner wall of the movable groove (8) on the same side. The side wall of the insert (7) is provided with a limiting groove that matches the limiting rod (10) on the same side.
4. The robotic arm joint protection structure according to claim 1, characterized in that: The sidewall of the rubber protective sleeve (4) is provided with multiple reinforcing rods (5) arranged in a ring array.
5. The robotic arm joint protection structure according to claim 1, characterized in that: The side wall of the rubber protective sleeve (4) has multiple sets of heat dissipation holes arranged in a straight array. The heat dissipation holes in the same set are arranged in a ring array on the side wall of the rubber protective sleeve (4), and each heat dissipation hole is provided with a filter cloth.
6. The robotic arm joint protection structure according to claim 1, characterized in that: Both the collar (2) and the assembly ring (3) have sealing gaskets fixedly installed on their inner sides.