Robot joint braking assembly
By engaging the side protrusions with the frosted plate and engaging the locking blocks with the slots, combined with the discharge of lubricating oil, precise braking and lubrication of the robot's bottom joints are achieved. This solves the problem of the bottom joints not being able to brake precisely in existing technologies, improves the robot's grasping accuracy, and avoids jamming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WU XI QUAN ZHI BO KE JI YOU XIAN GONG SI
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-15
AI Technical Summary
Existing technology cannot brake the bottom joints according to the robot's deflection angle, resulting in reduced robot grasping accuracy.
By employing the interlocking mechanism of side protrusions and frosted plates, and the interlocking mechanism of locking blocks and slots, combined with the lubrication mechanism's oil discharge, precise braking and lubrication of the robot's bottom joints are achieved, improving gripping accuracy and preventing jamming.
By precisely braking and lubricating the robot's bottom joints, the robot's grasping accuracy is improved, and the jamming phenomenon during braking is avoided.
Smart Images

Figure CN224239622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of robot joint braking technology, and in particular to a robot joint braking component. Background Technology
[0002] Robot joint braking refers to a special device installed at the joints of a robot. It is mainly used to lock the joints in specific situations (such as when work stops, power is cut off, or in an emergency) to prevent accidental movement, thereby maintaining positional stability and ensuring safety.
[0003] In existing technologies, the top joints of a robot are usually braked, but the bottom joints cannot be braked according to the robot's deflection angle, which reduces the accuracy of the robot's grasping. Utility Model Content
[0004] This utility model mainly provides a robot joint braking component that can brake and position the bottom joint.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a robot joint braking assembly, comprising: a base, a lubrication mechanism and a braking mechanism, wherein the base comprises a side protrusion, a frosted plate, a locking block and a locking groove, and by the engagement of the side protrusion with the frosted plate and the engagement of the locking block with the locking groove, the bottom joint of the robot can be braked according to the deflection angle of the robot, thereby improving the accuracy of the robot's grasping.
[0006] A braking mechanism is fixedly connected to the right side of the lubrication mechanism. The lubrication mechanism includes a cone hopper, an oil storage cotton rod, and a hinge ring. The cone hopper passes through the hinge ring to discharge lubricating oil, which is then absorbed by the oil storage cotton rod to lubricate the joints at the top of the robot and prevent jamming when the robot joints brake.
[0007] Preferably, a motor is fixedly connected inside the base, and a rotating rod is fixedly connected to the output end of the motor. A connecting column is fixedly connected to the end of the rotating rod away from the motor, and the connecting column is connected through the top of the base. A connecting ring is fixedly connected to the side surface of the rotating rod, and a connecting rod is fixedly connected to the side surface of the connecting ring. A side protrusion is fixedly connected to the end of the connecting rod away from the connecting ring. When the motor is started, it drives the rotating rod to rotate, thereby causing the connecting ring to drive the connecting rod to rotate, which in turn causes the side protrusion to make a circular motion inside the fixed ring.
[0008] Preferably, a fixing ring is fixedly connected inside the base, and a frosted plate is evenly distributed inside the fixing ring. The frosted plate is in contact with the upper and lower surfaces of the side protrusion. A ring plate is fixedly connected inside the base and is located above the fixing ring. The surface of the ring plate is evenly distributed with slots. The rough sand surface of the frosted plate allows the robot to stop quickly when the power supply is interrupted, thus braking the bottom joint of the robot.
[0009] Preferably, a positioning circular plate is fixedly connected to the side surface of the rotating rod, and the positioning circular plate is located between the ring plates. The surface of the positioning circular plate is provided with a connecting groove, and a circular block is fixedly connected inside the connecting groove. A spring is fixedly connected to the upper and lower surfaces of the circular block, and a locking block is fixedly connected to the end of the spring away from the circular block. The locking block engages with the locking groove. The rebound of the spring causes the locking block to move outward of the connecting groove and engage with the locking groove, thereby positioning the deflection angle of the connecting column and improving the accuracy of the robot's grasping.
[0010] Preferably, a lubrication mechanism is fixedly connected to the end of the connecting column away from the base. A connecting seat is fixedly connected to the inner wall of the lubrication mechanism. A conical hopper is fixedly connected to the left side of the lubrication mechanism and communicates with the connecting seat. An oil storage cotton rod is connected through the interior of the connecting seat. A second spring is fixedly connected to the left side of the lubrication mechanism and is located on both sides of the conical hopper. An internal threaded seat is fixedly connected to the end of the second spring away from the lubrication mechanism. A hinge ring is provided on the right side of the internal threaded seat. An oil cylinder is provided on the side surface of the internal threaded seat. A threaded tube is fixedly connected to the right side of the oil cylinder and is threadedly connected to the internal threaded seat. The conical hopper passes through the hinge ring and enters the interior of the threaded tube to export the lubricating oil inside the oil cylinder. The exported lubricating oil is absorbed by the oil storage cotton rod to lubricate the joints at the top of the robot and prevent jamming when the robot joints brake.
[0011] Preferably, the output end of the braking mechanism is fixedly connected to a rotating rod two, and the end of the rotating rod two away from the braking mechanism is rotatably connected to the connecting seat. A shaft is fixedly connected to the side surface of the rotating rod two, and the end of the shaft away from the rotating rod two extends out of the interior of the lubrication mechanism. A robot arm is fixedly connected to the end of the shaft away from the rotating rod two. Activating the braking mechanism drives the rotating rod two to rotate, thereby causing the shaft to drive the robot arm to swing, thus driving the robot.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, the side protrusion moves along the inner wall of the fixing ring and is embedded between the frosted plates. The rough sand surface of the frosted plate makes the robot stop quickly when the power supply is interrupted, braking the bottom joint of the robot. At the same time, the rotation of the rotating rod causes the positioning plate to rotate, thereby squeezing the locking block and moving it into the interior of the connecting groove to squeeze the spring. When the side protrusion is embedded between the frosted plates, the rebound of the spring causes the locking block to move outward of the connecting groove and engage with the locking groove, positioning the deflection angle of the connecting column and improving the accuracy of the robot's grasping.
[0014] 2. In this utility model, by pressing the oil cylinder, the inner screw seat is pushed to the right to compress the second spring, so that the cone hopper passes through the hinge ring and enters the inside of the threaded tube, and the lubricating oil inside the oil cylinder is discharged. The discharged lubricating oil is absorbed by the oil storage cotton rod to lubricate the joint at the top of the robot and prevent jamming when the robot joint brakes. Attached Figure Description
[0015] Figure 1 A perspective view of a robot joint braking assembly is provided for this utility model;
[0016] Figure 2 This utility model provides a schematic diagram of the internal cross-sectional structure of the base of a robot joint braking assembly.
[0017] Figure 3 This utility model provides a schematic diagram of the internal disassembled structure of the positioning circular plate of a robot joint braking assembly.
[0018] Figure 4 This utility model provides a partial structural diagram of the braking mechanism of a robot joint braking assembly;
[0019] Figure 5 This utility model provides a schematic diagram of the disassembled structure of the lubrication mechanism of a robot joint braking assembly.
[0020] Legend: 1. Base; 101. Motor; 102. Rotating rod one; 103. Connecting ring; 104. Connecting rod; 105. Side protrusion; 106. Fixing ring; 107. Frosted plate; 108. Positioning round plate; 109. Connecting groove; 110. Round block; 111. Spring one; 112. Locking block; 113. Ring plate; 114. Locking groove; 115. Connecting column; 2. Lubrication mechanism; 201. Connecting seat; 202. Conical hopper; 203. Oil storage cotton rod; 204. Spring two; 205. Internal thread seat; 206. Hinge ring; 207. Oil cylinder; 208. Threaded tube; 3. Braking mechanism; 301. Rotating rod two; 302. Shaft; 303. Robot arm. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Please see Figures 1-5 This utility model provides a technical solution: a robot joint braking assembly, including: a base 1, a lubrication mechanism 2, and a braking mechanism 3. The base 1 includes a side protrusion 105, a frosted plate 107, a locking block 112, and a locking groove 114. Through the engagement of the side protrusion 105 with the frosted plate 107 and the engagement of the locking block 112 with the locking groove 114, the bottom joint of the robot can be braked according to the robot's deflection angle, improving the robot's grasping accuracy. The braking mechanism 3 is fixedly connected to the right side of the lubrication mechanism 2. The lubrication mechanism 2 includes a conical hopper 202, an oil storage cotton rod 203, and a hinge ring 206. The braking mechanism 3 is fixedly connected to the right side of the lubrication mechanism 2. The lubrication mechanism 2 includes a conical hopper 202, an oil storage cotton rod 203, and a hinge ring 206. The hinge ring 206 guides the lubricating oil to be absorbed by the oil storage cotton rod 203, lubricating the joints at the top of the robot and preventing jamming when the robot joints are braked. During robot use, the engagement of the side protrusion 105 with the frosted plate 107 and the engagement of the locking block 112 with the locking groove 114 allows the robot's bottom joints to be braked according to the robot's deflection angle, improving the robot's grasping accuracy. At the same time, the cone hopper 202 passes through the hinge ring 206 to guide the lubricating oil to be absorbed by the oil storage cotton rod 203, lubricating the joints at the top of the robot and preventing jamming when the robot joints are braked.
[0024] like Figure 2 As shown, a motor 101 is fixedly connected inside the base 1. A rotating rod 102 is fixedly connected to the output end of the motor 101. A connecting post 115 is fixedly connected to the end of the rotating rod 102 away from the motor 101, and the connecting post 115 is connected through to the top of the base 1. A connecting ring 103 is fixedly connected to the side surface of the rotating rod 102. A connecting rod 104 is fixedly connected to the side surface of the connecting ring 103. A side protrusion 105 is fixedly connected to the end of the connecting rod 104 away from the connecting ring 103. During the use of the robot, the motor 101 is started to drive the rotating rod 102 to rotate, thereby causing the connecting ring 103 to drive the connecting rod 104 to rotate, which in turn causes the side protrusion 105 to make a circular motion inside the fixed ring 106.
[0025] like Figure 2 and Figure 3As shown, a fixing ring 106 is fixedly connected inside the base 1. Frosted plates 107 are evenly distributed inside the fixing ring 106, and the frosted plates 107 are in contact with the upper and lower surfaces of the side protrusions 105. A ring plate 113 is fixedly connected inside the base 1, and the ring plate 113 is located above the fixing ring 106. The surface of the ring plate 113 is evenly distributed with slots 114. The side protrusions 105 move along the inner wall of the fixing ring 106 and are embedded between the frosted plates 107. The rough sand surface of the frosted plates 107 allows the robot to stop quickly when the power supply is interrupted, thus braking the bottom joints of the robot.
[0026] like Figure 2 and Figure 3 As shown, a positioning circular plate 108 is fixedly connected to the side surface of the rotating rod 102, and the positioning circular plate 108 is located between the ring plates 113. The surface of the positioning circular plate 108 is provided with a connecting groove 109. A circular block 110 is fixedly connected inside the connecting groove 109. A spring 111 is fixedly connected to the upper and lower surfaces of the circular block 110. A locking block 112 is fixedly connected to the end of the spring 111 away from the circular block 110, and the locking block 112 is engaged with the locking groove 114. The rotation of the rotating rod 102 causes the positioning circular plate 108 to rotate, thereby squeezing the locking block 112 and moving it into the interior of the connecting groove 109 to squeeze the spring 111. When the side protrusion 105 is embedded between the frosted plates 107, the rebound of the spring 111 causes the locking block 112 to move outward from the connecting groove 109 and engage with the locking groove 114, thereby positioning the deflection angle of the connecting column 115 and improving the accuracy of the robot's grasping.
[0027] like Figure 4 and Figure 5 As shown, a lubrication mechanism 2 is fixedly connected to the end of the connecting column 115 away from the base 1. A connecting seat 201 is fixedly connected to the inner wall of the lubrication mechanism 2. A conical hopper 202 is fixedly connected to the left side of the lubrication mechanism 2, and the conical hopper 202 communicates with the connecting seat 201. An oil storage cotton rod 203 is passed through the interior of the connecting seat 201. A second spring 204 is fixedly connected to the left side of the lubrication mechanism 2, and the second spring 204 is located on both sides of the conical hopper 202. An internal thread seat 205 is fixedly connected to the end of the second spring 204 away from the lubrication mechanism 2. A hinge ring 206 is provided on the right side of the internal thread seat 205. An oil cylinder 207 is provided on the side surface of the inner screw seat 205. A threaded tube 208 is fixedly connected to the right side of the oil cylinder 207, and the threaded tube 208 is screwed into the inner screw seat 205. During the use of the robot, pressing the oil cylinder 207 pushes the inner screw seat 205 to the right, which compresses the spring 204, causing the cone hopper 202 to pass through the hinge ring 206 and enter the interior of the threaded tube 208, thus exporting the lubricating oil inside the oil cylinder 207. The exported lubricating oil is absorbed by the oil storage cotton rod 203 to lubricate the joints at the top of the robot and prevent jamming when the robot joints are braked.
[0028] like Figure 4 As shown, the output end of the braking mechanism 3 is fixedly connected to a rotating rod 301, and the end of the rotating rod 301 away from the braking mechanism 3 is rotatably connected to the connecting seat 201. A shaft 302 is fixedly connected to the side surface of the rotating rod 301, and the end of the shaft 302 away from the rotating rod 301 extends out of the interior of the lubrication mechanism 2. A robot arm 303 is fixedly connected to the end of the shaft 302 away from the rotating rod 301. During the use of the robot, the braking mechanism 3 is activated to drive the rotating rod 301 to rotate, thereby causing the shaft 302 to drive the robot arm 303 to swing, thus driving the robot.
[0029] The usage and working principle of this device are as follows: During robot operation, the motor 101 is started to drive the rotating rod 102 to rotate, thereby causing the connecting ring 103 to drive the connecting rod 104 to rotate. This, in turn, causes the side protrusion 105 to move in a circular motion inside the fixed ring 106. The side protrusion 105 moves along the inner wall of the fixed ring 106 and embeds itself between the frosted plates 107. The rough surface of the frosted plates 107 causes the robot to stop quickly when the power supply is interrupted, braking the bottom joints of the robot. The rotation of the rotating rod 102 causes the positioning plate 108 to rotate, thereby pressing the locking block 112 and moving it into the connecting groove 109 to press the spring 111. When the side protrusion 105 is embedded... When the abrasive plates 107 are in contact, the rebound of spring 111 causes the locking block 112 to move outward of the connecting groove 109 and engage with the locking groove 114, thus positioning the deflection angle of the connecting column 115. During the use of the robot, pressing the oil cylinder 207 pushes the inner screw seat 205 to the right, squeezing the spring 204, causing the cone hopper 202 to pass through the hinge ring 206 and enter the interior of the threaded tube 208, thus exporting the lubricating oil inside the oil cylinder 207. The exported lubricating oil is absorbed by the oil storage cotton rod 203, lubricating the joints at the top of the robot. During the use of the robot, the braking mechanism 3 is activated to drive the rotating rod 301 to rotate, thereby causing the shaft 302 to drive the robot arm 303 to swing, thus driving the robot.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A robot joint braking assembly, characterized in that, include: The base (1), lubrication mechanism (2) and braking mechanism (3) are provided. The base (1) includes a side protrusion (105), a frosted plate (107), a locking block (112) and a locking groove (114). By the engagement of the side protrusion (105) with the frosted plate (107) and the locking block (112) with the locking groove (114), the bottom joint of the robot can be braked according to the deflection angle of the robot, thereby improving the accuracy of the robot's grasping. The lubrication mechanism (2) is fixedly connected to the right side of the braking mechanism (3). The lubrication mechanism (2) includes a cone hopper (202), an oil storage cotton rod (203), and a hinge ring (206). The cone hopper (202) passes through the hinge ring (206) to deliver lubricating oil, which is then absorbed by the oil storage cotton rod (203) to lubricate the joints at the top of the robot and prevent jamming when the robot joints brake.
2. The robot joint braking assembly according to claim 1, characterized in that: A motor (101) is fixedly connected inside the base (1). A rotating rod (102) is fixedly connected to the output end of the motor (101). A connecting column (115) is fixedly connected to the end of the rotating rod (102) away from the motor (101), and the connecting column (115) is connected through the top of the base (1). A connecting ring (103) is fixedly connected to the side surface of the rotating rod (102). A connecting rod (104) is fixedly connected to the side surface of the connecting ring (103). A side protrusion (105) is fixedly connected to the end of the connecting rod (104) away from the connecting ring (103).
3. A robot joint braking assembly according to claim 2, characterized in that: The base (1) is fixedly connected to a fixing ring (106), and the fixing ring (106) is evenly distributed with frosted plates (107). The frosted plates (107) are in contact with the upper and lower surfaces of the side protrusions (105). The base (1) is fixedly connected to a ring plate (113), and the ring plate (113) is located above the fixing ring (106). The surface of the ring plate (113) is evenly distributed with slots (114).
4. A robot joint braking assembly according to claim 2, characterized in that: A positioning circular plate (108) is fixedly connected to the side surface of the rotating rod (102), and the positioning circular plate (108) is located between the ring plates (113). The surface of the positioning circular plate (108) is provided with a connecting groove (109). A circular block (110) is fixedly connected inside the connecting groove (109). A spring (111) is fixedly connected to the upper and lower surfaces of the circular block (110). A locking block (112) is fixedly connected to the end of the spring (111) away from the circular block (110), and the locking block (112) is engaged with the locking groove (114).
5. A robot joint braking assembly according to claim 2, characterized in that: A lubrication mechanism (2) is fixedly connected to the end of the connecting column (115) away from the base (1). A connecting seat (201) is fixedly connected to the inner side wall of the lubrication mechanism (2). A conical hopper (202) is fixedly connected to the left side of the lubrication mechanism (2), and the conical hopper (202) is connected to the connecting seat (201). An oil storage cotton rod (203) is connected through the inside of the connecting seat (201). A spring (204) is fixedly connected to the left side of the lubrication mechanism (2). The second spring (204) is located on both sides of the cone (202). The end of the second spring (204) away from the lubrication mechanism (2) is fixedly connected to the inner thread seat (205). The right side of the inner thread seat (205) is provided with a hinge ring (206). The side surface of the inner thread seat (205) is provided with an oil cylinder (207). The right side of the oil cylinder (207) is fixedly connected with a threaded tube (208), and the threaded tube (208) is screwed into the inner thread seat (205).
6. A robot joint braking assembly according to claim 1, characterized in that: The output end of the braking mechanism (3) is fixedly connected to a rotating rod (301), and the end of the rotating rod (301) away from the braking mechanism (3) is rotatably connected to the connecting seat (201). The side surface of the rotating rod (301) is fixedly connected to a shaft (302), and the end of the shaft (302) away from the rotating rod (301) extends out of the interior of the lubrication mechanism (2). The end of the shaft (302) away from the rotating rod (301) is fixedly connected to a robot (303).