Dust protection sealing structure of industrial robot

Abstract

The utility model relates to the technical field of industrial robot dust protection, and discloses an industrial robot dust protection sealing structure which comprises an industrial robot body, a mechanical arm is arranged on the industrial robot body, a driving shaft is rotationally arranged in the mechanical arm, a mechanical gripper is fixedly arranged on the driving shaft, and the mechanical gripper is connected with the industrial robot body. Two gaps are formed between the mechanical arm and the mechanical gripper, and the inner walls of the two sides of the mechanical arm are each provided with a first mounting groove, a transmission circular cavity and a second mounting groove; according to the utility model, the plurality of cleaning scrapers on one sides of the two inner gear rings are synchronously driven to respectively rotate in the corresponding gaps, and the plurality of cleaning scrapers on one sides of the two inner gear rings respectively rotate in the corresponding gaps, so that dust impurities attached in the gaps are automatically scraped, and manual dust cleaning is avoided; and meanwhile, the problem that due to the fact that dust blocks the gap for a long time, the industrial robot body is blocked in operation or unsmooth in operation is solved.

Description

Technical Field

[0001] This utility model relates to the field of dust protection technology for industrial robots, and in particular to a dust protection sealing structure for industrial robots. Background Technology

[0002] Industrial robots are multi-jointed manipulators or multi-degree-of-freedom machines widely used in the industrial field. They have a certain degree of automation and can achieve various industrial processing and manufacturing functions by relying on their own power and control capabilities. Industrial robots are widely used in various industrial fields such as electronics, logistics, and chemicals.

[0003] An industrial robot (authorization announcement number: CN212331026U) has a structure in which there is usually a certain gap between the joints of two adjacent arms. When the industrial robot works in a dusty environment, dust will adhere to the gap between the joints of the two adjacent arms. Over time, the dust accumulated in the gap between the arm joints will increase the operating resistance, causing the industrial robot to experience problems such as running stuck or not moving smoothly. Therefore, a dust protection sealing structure for industrial robots is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dust protection and sealing structure for industrial robots, thereby solving the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dust protection sealing structure for an industrial robot includes an industrial robot body with a robotic arm mounted on it. A drive shaft is rotatably mounted inside the robotic arm, and a mechanical gripper is fixedly mounted on the drive shaft. Two gaps are provided between the robotic arm and the mechanical gripper. A first mounting groove, a transmission cavity, and a second mounting groove are respectively formed on the inner walls of both sides of the robotic arm. An external gear ring is rotatably mounted in the first mounting groove and is fixedly connected to the drive shaft. A sealing mechanism for the corresponding gap is provided on one side of the external gear ring. An internal gear ring is rotatably mounted in the second mounting groove, and multiple cleaning scrapers are fixedly mounted on one side of the internal gear ring. A transmission mechanism for the external and internal gear rings is provided in the transmission cavity.

[0007] Preferably, the sealing mechanism includes a side groove and a sealing ring. A side groove is provided on one side of the outer toothed ring, and a sealing ring is fitted inside the side groove. The sealing ring is sealed and fitted into the corresponding gap between the robotic arm and the robotic gripper. The sealing ring on the outer toothed ring provides a protective sealing effect to prevent dust from entering the drive shaft.

[0008] Preferably, the multiple cleaning scrapers on the internal toothed ring are arranged in a circumferential array, and the multiple cleaning scrapers are attached to the corresponding gaps between the robotic arm and the robotic gripper. One end of the multiple cleaning scrapers is attached to the outer surface of the sealing ring. The dust and impurities attached to the gaps are automatically scraped off by the multiple cleaning scrapers rotating in the corresponding gaps.

[0009] Preferably, the first mounting groove, the transmission cavity, and the second mounting groove on one side wall of the robotic arm are connected.

[0010] Preferably, the transmission mechanism includes a rotating shaft and a gear. The rotating shaft is rotatably mounted on the inner wall of the transmission cavity, and the gear is fixedly mounted on the rotating shaft. The gear meshes with the outer gear ring and the inner gear ring. Since the gear meshes with the outer gear ring and the inner gear ring, when the outer gear ring rotates, the gear can synchronously drive the outer gear ring to rotate.

[0011] Preferably, a limiting groove is formed on one side wall of the second mounting groove, and a limiting ring is rotatably installed in the limiting groove. The limiting ring is fixedly connected to the internal gear ring. The limiting ring can provide limiting support for the internal gear ring during rotation.

[0012] The beneficial effects of this utility model are as follows: When the mechanical gripper of the industrial robot is working, it will drive the two external toothed rings at both ends of the drive shaft on the mechanical gripper to rotate. Under the transmission action of the transmission mechanism, it will synchronously drive multiple cleaning scrapers on one side of the two internal toothed rings to rotate in the corresponding gaps. By having multiple cleaning scrapers on one side of the two internal toothed rings rotate in the corresponding gaps, the dust and impurities attached to the gaps can be automatically scraped off, avoiding the need for manual dust cleaning. It also reduces the problem of the industrial robot body running stuck or not running smoothly due to dust clogging the gaps for a long time, thus ensuring the normal operation of the industrial robot body. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a partial cross-sectional view of the robotic arm of this utility model.

[0015] Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A;

[0016] Figure 4 This is a structural schematic diagram of the present invention from a first explosion perspective;

[0017] Figure 5 This is a structural schematic diagram of the present invention from a second explosion perspective.

[0018] In the diagram: 1. Industrial robot body; 2. Robotic arm; 3. Drive shaft; 4. Mechanical gripper; 5. Clearance; 6. First mounting slot; 7. Transmission cavity; 8. Second mounting slot; 9. External gear ring; 10. Side groove; 11. Sealing ring; 12. Internal gear ring; 13. Cleaning scraper; 14. Rotating shaft; 15. Gear; 16. Limiting groove; 17. Limiting ring. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1-5 A dust protection sealing structure for an industrial robot includes an industrial robot body 1, a robotic arm 2 mounted on the robot body 1, a drive shaft 3 rotatably mounted inside the robotic arm 2, a mechanical gripper 4 fixedly mounted on the drive shaft 3, two gaps 5 between the robotic arm 2 and the mechanical gripper 4, and a first mounting groove 6, a transmission cavity 7, and a second mounting groove 8 respectively opened on the inner walls of both sides of the robotic arm 2, an external gear ring 9 rotatably mounted in the first mounting groove 6, the external gear ring 9 being fixedly connected to the drive shaft 3, a sealing mechanism for the corresponding gap 5 being provided on one side of the external gear ring 9, an internal gear ring 12 rotatably mounted in the second mounting groove 8, a plurality of cleaning scrapers 13 being fixedly mounted on one side of the internal gear ring 12, and a transmission mechanism for the external gear ring 9 and the internal gear ring 12 being provided in the transmission cavity 7.

[0021] Furthermore, the sealing mechanism includes a side groove 10 and a sealing ring 11. A side groove 10 is provided on one side of the outer toothed ring 9, and a sealing ring 11 is fitted inside the side groove 10. The sealing ring 11 is sealed and fitted in the corresponding gap 5 between the robotic arm 2 and the robotic gripper 4. The sealing ring 11 on the outer toothed ring 9 plays a protective sealing role to prevent dust from entering the drive shaft 3.

[0022] Specifically, multiple cleaning scrapers 13 on the inner toothed ring 12 are arranged in a circumferential array. The multiple cleaning scrapers 13 are attached to the corresponding gaps 5 between the robotic arm 2 and the robotic gripper 4. One end of the multiple cleaning scrapers 13 is attached to the outer surface of the sealing ring 11. The dust and impurities attached to the gaps 5 are automatically scraped off by the multiple cleaning scrapers 13 rotating in the corresponding gaps 5.

[0023] Furthermore, the first mounting groove 6, the transmission cavity 7, and the second mounting groove 8 on one side wall of the robotic arm 2 are connected.

[0024] Specifically, the transmission mechanism includes a rotating shaft 14 and a gear 15. The rotating shaft 14 is rotatably mounted on the inner wall of the transmission cavity 7, and the gear 15 is fixedly mounted on the rotating shaft 14. The gear 15 meshes with the outer gear ring 9 and the inner gear ring 12. Since the gear 15 meshes with the outer gear ring 9 and the inner gear ring 12, when the outer gear ring 9 rotates, the gear 15 can synchronously drive the outer gear ring 9 to rotate.

[0025] Specifically, a limiting groove 16 is provided on one side wall of the second mounting groove 8, and a limiting ring 17 is rotatably installed in the limiting groove 16. The limiting ring 17 is fixedly connected to the internal gear ring 12. The limiting ring 17 can provide limiting support for the internal gear ring 12 during rotation.

[0026] In use: When the mechanical gripper 4 of the industrial robot body 1 is working, it will drive the two external gear rings 9 at both ends of the drive shaft 3 on the mechanical gripper 4 to rotate. Under the transmission action of the two sets of rotating shafts 14 and gears 15, the two internal gear rings 12 will be driven to rotate in the corresponding second mounting grooves 8, and then the multiple cleaning scrapers 13 on one side of the two internal gear rings 12 will be driven to rotate in the corresponding gaps 5. By the multiple cleaning scrapers 13 on one side of the two internal gear rings 12 rotating in the corresponding gaps 5, the dust and impurities attached to the gaps 5 can be automatically scraped off, avoiding the need for manual dust cleaning. It also reduces the problem of the industrial robot body 1 running stuck or not running smoothly due to dust clogging in the gaps 5 for a long time, ensuring the normal operation of the industrial robot body 1. The sealing rings 11 on the external gear rings 9 play a protective sealing role to prevent dust from entering the drive shaft 3.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A dust protection sealing structure for an industrial robot, comprising an industrial robot body (1), characterized in that, The industrial robot body (1) is provided with a robotic arm (2), and a drive shaft (3) is rotatably provided inside the robotic arm (2). A mechanical gripper (4) is fixedly provided on the drive shaft (3). Two gaps (5) are provided between the robotic arm (2) and the mechanical gripper (4). A first mounting groove (6), a transmission cavity (7), and a second mounting groove (8) are respectively provided on the inner walls of both sides of the robotic arm (2). An external gear ring (9) is rotatably installed in the first mounting groove (6). The external gear ring (9) is fixedly connected to the drive shaft (3). A sealing mechanism for the corresponding gap (5) is provided on one side of the external gear ring (9). An internal gear ring (12) is rotatably installed in the second mounting groove (8). Multiple cleaning scrapers (13) are fixedly installed on one side of the internal gear ring (12). A transmission mechanism for the external gear ring (9) and the internal gear ring (12) is provided in the transmission cavity (7).

2. The dust protection sealing structure for an industrial robot according to claim 1, characterized in that, The sealing mechanism includes a side groove (10) and a sealing ring (11). The side groove (10) is provided on one side of the external toothed ring (9). The sealing ring (11) is fitted inside the side groove (10). The sealing ring (11) is sealed and fitted in the corresponding gap (5) between the robotic arm (2) and the robotic gripper (4).

3. The dust protection sealing structure for an industrial robot according to claim 2, characterized in that, The multiple cleaning scrapers (13) on the internal toothed ring (12) are arranged in a circumferential array. The multiple cleaning scrapers (13) are attached to the corresponding gap (5) between the robotic arm (2) and the robotic gripper (4). One end of the multiple cleaning scrapers (13) is attached to the outer surface of the sealing ring (11).

4. The dust protection sealing structure for an industrial robot according to claim 1, characterized in that, The first mounting groove (6), the transmission cavity (7), and the second mounting groove (8) on one side wall of the robotic arm (2) are connected.

5. The dust protection sealing structure for an industrial robot according to claim 4, characterized in that, The transmission mechanism includes a rotating shaft (14) and a gear (15). The rotating shaft (14) is rotatably mounted on the inner wall of the transmission cavity (7). The gear (15) is fixedly mounted on the rotating shaft (14). The gear (15) meshes with the outer gear ring (9) and the inner gear ring (12).

6. The dust protection sealing structure for an industrial robot according to claim 5, characterized in that, A limiting groove (16) is provided on one side wall of the second mounting groove (8), and a limiting ring (17) is rotatably installed in the limiting groove (16). The limiting ring (17) is fixedly connected to the internal toothed ring (12).

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