A single-axis robot with a noise reduction device

Abstract

This utility model discloses a single-axis robot with a noise reduction device, relating to the field of single-axis robot technology. It includes a mounting frame with a cover plate fixed to its upper end. A lead screw is installed inside the mounting frame, with both ends rotatably connected to the inner wall of the mounting frame. A lead screw seat, fitted onto the lead screw, is located inside the mounting frame. A servo motor is mounted on the outer wall of the mounting frame, with its output shaft passing through the mounting frame and fixedly connected to the end of the lead screw. A noise reduction device is located outside the mounting frame and connected to the lead screw seat. This utility model effectively combines dynamic wrapping and efficient noise reduction functions, while also featuring easy installation and quick maintenance.

Description

Technical Field

[0001] This utility model relates to the field of single-axis robot technology, and in particular to a single-axis robot with a noise reduction device. Background Technology

[0002] In the field of industrial automation, single-axis robots, as important linear motion actuators, are widely used in various mechanical equipment to achieve precise material handling, positioning, and other operations. Especially in the semiconductor manufacturing industry, which has extremely high requirements for precision and production environment, single-axis robots play an indispensable role. In key processes such as semiconductor wafer transport, chip placement, and packaging testing, single-axis robots, with their high-precision linear motion control, ensure the accuracy and consistency of semiconductor product production, making them one of the key pieces of equipment for ensuring the efficient and stable operation of semiconductor manufacturing. Their core structure typically includes a lead screw and a lead screw holder. When the lead screw rotates, it drives the lead screw holder to perform linear motion, thereby driving the load to complete the corresponding actions. However, existing single-axis robots suffer from noise problems during operation. The relative motion between the lead screw and the lead screw holder, as well as the friction and vibration of mechanical parts, generate noise. This noise not only seriously interferes with the operator's working environment but also pollutes the surrounding area and interferes with the normal operation of other equipment.

[0003] Currently, the common method is to install a fixed soundproof enclosure on the outside of the equipment. However, this traditional soundproof enclosure has many limitations. On the one hand, the fixed soundproof enclosure cannot dynamically adjust according to the movement of the lead screw seat, and cannot always tightly cover the moving area of ​​the lead screw and lead screw seat. As a result, the noise source is partially exposed during the movement, failing to achieve effective noise isolation throughout the entire process, and the noise reduction effect is not ideal. On the other hand, the structural design of traditional soundproof enclosures is relatively complex, and the installation process is cumbersome, requiring a lot of time and manpower for positioning and fixing. This not only increases the workload of equipment assembly, but also makes the disassembly and reinstallation process very inconvenient during later maintenance and replacement, further increasing maintenance costs and time, and hindering the rapid maintenance and repair of the equipment. Therefore, it is necessary to design a single-axis robot with a noise reduction device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a single-axis robot with a noise reduction device.

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

[0006] A single-axis robot with a noise reduction device includes a mounting frame, a cover plate fixed to the upper end of the mounting frame, a lead screw inside the mounting frame with both ends rotatably connected to the inner wall of the mounting frame, a lead screw seat fitted onto the lead screw inside the mounting frame, a servo motor mounted on the outer wall of the mounting frame, the output shaft of the servo motor passing through the mounting frame and fixedly connected to the end of the lead screw, and a noise reduction device outside the mounting frame connected to the lead screw seat.

[0007] As a further improvement of this utility model, fixing bolts are provided through the four corners of the upper end of the cover plate, and the fixing bolts are screwed to the upper end of the mounting frame.

[0008] As a further improvement of this utility model, the silencing device includes two fixed covers, which are located on the left and right sides of the mounting frame, respectively. The fixed covers are connected to the side walls of the mounting frame. An elastic telescopic cover is fixedly connected to the side walls of both fixed covers. A connecting plate is fixedly connected to the end of each elastic telescopic cover away from the fixed cover. The two connecting plates are respectively connected to the two sides of the lead screw seat. Two limiting grooves are provided on the side wall of the lead screw seat, and the connecting plates are inserted into the limiting grooves.

[0009] As a further improvement of this utility model, four magnetic sleeves are fixedly embedded on the side wall of one of the connecting plates, and four magnetic rods are fixedly connected to the side wall of the other connecting plate, with the four magnetic rods magnetically inserted into the four magnetic sleeves.

[0010] As a further improvement of this utility model, two insert blocks integrally formed with the fixing cover are fixedly connected to the inner wall of the fixing cover, and slots that cooperate with the insert blocks are provided on the side wall of the mounting frame. A connecting bolt is provided through the insert block, and a connecting screw hole that cooperates with the connecting bolt is provided on the inner wall of the slot.

[0011] As a further improvement of this utility model, the inner wall of the elastic telescopic cover is provided with a sound-absorbing cotton padding layer.

[0012] The beneficial effects of this utility model are:

[0013] As the lead screw seat moves with the lead screw, the elastic telescopic cover can expand and contract synchronously, always tightly covering the moving area of ​​the lead screw and lead screw seat. This dynamic wrapping method ensures that the noise source is effectively isolated in a closed space throughout the process. Combined with the sound-absorbing cotton padding layer attached to the inner wall of the elastic telescopic cover to absorb and attenuate sound waves, the dual effect greatly reduces mechanical noise and vibration noise, fundamentally improving the quietness of the equipment operating environment and reducing noise pollution to operators and surrounding areas.

[0014] The entire silencing device adopts a highly modular and quick-installation structure. The fixed cover serves as the foundation of the silencing device, and its integrated plug precisely matches the slot on the side wall of the mounting frame for positioning. It can be fixed simply by screwing the connecting bolts into the pre-set connecting screw holes. This makes the installation process of the silencing device simple, quick, and accurate, greatly simplifying the workload of equipment assembly or subsequent maintenance and replacement. At the same time, it facilitates subsequent maintenance or repair operations, improves the convenience of maintenance, upkeep, and fault diagnosis, and reduces maintenance costs and time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a single-axis robot with a noise reduction device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the connecting plate, magnetic sleeve, and magnetic rod of a single-axis robot with a noise reduction device proposed in this utility model.

[0017] Figure 3 This is a structural diagram of the fixing cover, insert block, and connecting bolts of a single-axis robot with a noise reduction device proposed in this utility model.

[0018] Figure 4 This utility model provides a structural schematic diagram of a single-axis robot with a noise reduction device, including a mounting frame, cover plate, fixing bolts, lead screw, lead screw seat, servo motor, slot, and connecting screw hole.

[0019] Figure 5 This is a schematic diagram of the lead screw seat and limiting groove of a single-axis robot with a noise reduction device proposed in this utility model.

[0020] In the diagram: 1. Mounting frame, 2. Fixing cover, 3. Connecting bolt, 4. Elastic telescopic cover, 5. Connecting plate, 6. Lead screw seat, 7. Magnetic sleeve, 8. Magnetic rod, 9. Insert block, 10. Slot, 11. Connecting screw hole, 12. Servo motor, 13. Cover plate, 14. Fixing bolt, 15. Lead screw, 16. Limit groove. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-5A single-axis robot with a noise reduction device includes a mounting frame 1. A cover plate 13 is fixed to the upper end of the mounting frame 1. Fixing bolts 14 are provided through the four corners of the upper end of the cover plate 13. The fixing bolts 14 are screwed to the upper end of the mounting frame 1. Specifically, the four fixing bolts 14 are evenly distributed at the four corners of the cover plate 13, which can ensure the stability and firmness of the connection between the cover plate 13 and the mounting frame 1, and prevent the cover plate 13 from loosening or shaking during the operation of the robot.

[0023] Meanwhile, this screw connection method facilitates the disassembly and installation of the cover plate 13. When it is necessary to inspect or maintain the inside of the mounting frame 1, the cover plate 13 can be easily removed simply by unscrewing the fixing bolts 14. The mounting frame 1 is equipped with a lead screw 15, and both ends of the lead screw 15 are rotatably connected to the inner wall of the mounting frame 1. As a key transmission component of the single-axis robot, the lead screw 15 is made of high-strength alloy steel and undergoes precision machining and heat treatment processes. It has high hardness, wear resistance and fatigue resistance, and can withstand large loads and frequent reciprocating motions to ensure the long-term stable operation of the robot.

[0024] Meanwhile, the rotational connection between the lead screw 15 and the inner wall of the mounting frame 1 uses a high-precision bearing. This bearing features low friction, high speed, and long life, which can reduce energy loss and wear of the lead screw 15 during rotation and improve transmission efficiency. The mounting frame 1 has a lead screw seat 6 that fits onto the lead screw 15. The lead screw seat 6 is usually made of wear-resistant engineering plastic or metal material to achieve precise linear motion. The surface of the lead screw seat 6 has also undergone special treatment processes, such as surface hardening or hard chrome plating, to further improve its wear resistance and corrosion resistance and extend its service life. A servo motor 12 is installed on the outer wall of the mounting frame 1. The output shaft of the servo motor 12 passes through the mounting frame 1 and is fixedly connected to the end of the lead screw 15. As the power source of the single-axis robot, the servo motor 12 has high precision, high response speed, and good speed regulation performance. It can accurately control the speed and direction of the output shaft according to the instructions of the control system, thereby driving the lead screw 15 to rotate and achieving precise linear motion of the lead screw seat 6. The mounting frame 1 is equipped with a noise reduction device, which is connected to the lead screw seat 6.

[0025] The silencing device includes two fixed covers 2, located on the left and right sides of the mounting frame 1 respectively. The fixed covers 2 are connected to the side walls of the mounting frame 1. The material of the fixed covers 2 is generally selected to have certain strength and sound insulation properties, such as aluminum alloy or engineering plastic. Their shape is designed to match the side walls of the mounting frame 1, allowing them to fit tightly and reduce sound leakage. Elastic telescopic covers 4 are fixedly connected to the side walls of both fixed covers 2. These elastic telescopic covers 4 provide sound insulation and dust protection. The inner wall of the elastic telescopic covers 4 is lined with a sound-absorbing cotton pad, which further enhances the sound-absorbing effect. The sound-absorbing cotton pad is generally made of porous sound-absorbing material, such as polyester fiber cotton. These materials have numerous tiny pores; when sound enters the pores, it is absorbed and absorbed. Through repeated reflection and friction, sound energy is converted into heat energy, thereby achieving the purpose of absorbing and reducing sound. The thickness and density of the sound-absorbing cotton pad layer will be designed and adjusted according to the actual sound absorption requirements to ensure the best sound absorption effect. The ends of the two elastic telescopic covers 4 away from the fixed cover 2 are fixedly connected to the connecting plates 5. The two connecting plates 5 are respectively connected to the two sides of the lead screw seat 6. The side wall of the lead screw seat 6 is provided with two limiting grooves 16. The connecting plates 5 are inserted into the limiting grooves 16. By inserting the connecting plates 5 into the limiting grooves 16, the connecting plates 5 can be stably limited on the lead screw seat 6.

[0026] Four magnetic sleeves 7 are fixedly embedded on the side wall of one of the connecting plates 5, and four magnetic rods 8 are fixedly connected to the side wall of the other connecting plate 5. The four magnetic rods 8 are magnetically inserted into the four magnetic sleeves 7. By inserting the magnetic rods 8 into the magnetic sleeves 7, the two connecting plates 5 can be connected and fixed, and the two connecting plates 5 can be quickly fixed to both sides of the lead screw seat 6. The magnetic sleeves 7 and magnetic rods 8 are generally made of strong magnetic materials, such as neodymium iron boron magnets. This material has strong magnetism, which can ensure that they can be accurately aligned during insertion and that the attraction force is evenly distributed, avoiding local stress concentration that could lead to unstable connection.

[0027] Two integrally formed inserts 9 are fixedly connected to the inner wall of the fixed cover 2. The side wall of the mounting frame 1 has slots 10 that mate with the inserts 9. Connecting bolts 3 pass through the inserts 9. The inner wall of the slots 10 has connecting screw holes 11 that mate with the connecting bolts 3. By inserting the inserts 9 into the slots 10 and then screwing the connecting bolts 3 into the connecting screw holes 11, the fixed cover 2 can be installed onto the mounting frame 1. Installation is convenient. The design of the inserts 9 and slots 10 uses precise dimensional matching to ensure accurate positioning of the fixed cover 2 during installation, reducing installation errors. The connecting bolts 3 are generally high-strength bolts, and their material and specifications are selected according to actual usage requirements to ensure they can withstand greater tensile and shear forces, ensuring a firm and reliable connection between the fixed cover 2 and the mounting frame 1. When installing the connecting bolts 3, a torque wrench can be used to tighten them to the specified torque to ensure consistent preload on each bolt, further improving connection stability.

[0028] When using this utility model, the fixing cover 2 is inserted into the slot 10 of the mounting frame 1 through its insert 9 and screwed to the connecting screw hole 11 with the connecting bolt 3 to achieve fixation. The connecting plate 5 is inserted into the limiting groove 16 to stably limit the connecting plate 5 on the lead screw seat 6. Then, the magnetic suction rod 8 is inserted into the magnetic suction sleeve 7 to connect and fix the two connecting plates 5, thereby quickly fixing the two connecting plates 5 on both sides of the lead screw seat 6.

[0029] When using this single-axis robot, the servo motor 12 is started. The output shaft of the servo motor 12 drives the lead screw 15 to rotate inside the mounting frame 1. When the lead screw 15 rotates, the lead screw seat 6, which is fitted on the lead screw 15, moves linearly along the axis of the lead screw 15. When the lead screw seat 6 moves, it drives the connecting plate 5, which is inserted into its limiting groove 16, to move synchronously. When the lead screw seat 6 moves, the elastic telescopic cover 4 expands and contracts to cover the movement area of ​​the lead screw 15. The sound-absorbing cotton pad inside the elastic telescopic cover 4 absorbs the operating noise generated by the lead screw 15 and the lead screw seat 6, thus playing a highly efficient noise reduction role.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A single-axis robot with a sound dampening device, comprising a mounting frame (1), characterized in that, The upper end of the mounting frame (1) is fixed with a cover plate (13). The inside of the mounting frame (1) is provided with a lead screw (15). Both ends of the lead screw (15) are rotatably connected to the inner wall of the mounting frame (1). The inside of the mounting frame (1) is provided with a lead screw seat (6) fitted on the lead screw (15). A servo motor (12) is installed on the outer wall of the mounting frame (1). The output shaft of the servo motor (12) passes through the mounting frame (1) and is fixedly connected to the end of the lead screw (15). The outside of the mounting frame (1) is provided with a noise reduction device, which is connected to the lead screw seat (6).

2. The single-axis robot with a sound damping device according to claim 1, characterized in that Fixing bolts (14) are provided at the four corners of the upper end of the cover plate (13), and the fixing bolts (14) are screwed to the upper end of the mounting frame (1).

3. The single-axis robot with a sound damping device according to claim 1, characterized in that The noise reduction device includes two fixed covers (2), which are located on the left and right sides of the mounting frame (1) respectively. The fixed covers (2) are connected to the side wall of the mounting frame (1). An elastic telescopic cover (4) is fixedly connected to the side wall of each of the two fixed covers (2). A connecting plate (5) is fixedly connected to the end of each of the two elastic telescopic covers (4) away from the fixed cover (2). The two connecting plates (5) are respectively connected to the two sides of the lead screw seat (6). Two limiting grooves (16) are provided on the side wall of the lead screw seat (6). The connecting plate (5) is inserted into the limiting groove (16).

4. The single-axis robot with a sound damping device according to claim 3, characterized in that Four magnetic sleeves (7) are fixedly embedded on the side wall of one of the connecting plates (5), and four magnetic rods (8) are fixedly connected to the side wall of the other connecting plate (5). The four magnetic rods (8) are magnetically inserted into the four magnetic sleeves (7).

5. The single-axis robot with a sound damping device according to claim 3, characterized in that Two inserts (9) integrally formed with the fixing cover (2) are fixedly connected to the inner wall of the fixing cover (2). The side wall of the mounting frame (1) is provided with a slot (10) that cooperates with the inserts (9). A connecting bolt (3) is provided through the insert (9). The inner wall of the slot (10) is provided with a connecting screw hole (11) that cooperates with the connecting bolt (3).

6. The single-axis robot with a sound damping device according to claim 3, characterized in that The inner wall of the elastic telescopic cover (4) is provided with a sound-absorbing cotton pad.

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