A dustproof seventh-axis robot transmission mechanism

Abstract

This invention proposes a dustproof seventh-axis robot transmission mechanism, including a base, a base box, and cable trays. The base box is fixedly connected to the top of the base, and parallel cable trays are provided on the sides of the base box, with openings at the top. The advantages of this invention are: concealed tracks are installed on both sides of the base box, covered by a cover plate, and a connector is designed for matching. The connector connects the slider and the slide block, preventing dust from adhering to the slider and track. Flexible baffles are connected along the entire edge of the cover plate via connectors, which, without hindering the movement of the connector, slider, and slide block, serve as a dustproof curtain. When the connector passes, the flexible baffle lifts; after the slide block moves away, the flexible baffle returns to its original position, further protecting the rack and concealed tracks from dust. This double-barrier design significantly reduces the dust intrusion rate, prevents wear on the tracks, rack, and their accessories, ensures smooth transmission, and extends their service life.

Description

Technical Field

[0001] This utility model relates to the field of seventh-axis robot technology, and in particular to a dustproof seventh-axis robot transmission mechanism. Background Technology

[0002] Against the backdrop of rapid development in intelligent manufacturing and flexible production lines, industrial robots are widely used in fields such as automobile manufacturing, precision electronic assembly, and metal processing. To expand the robot's working range and improve the flexibility of production line layout, the seventh-axis traveling unit (robot floor rail) has become a key piece of equipment. Traditional seventh-axis transmission mechanisms typically consist of linear guides, gear and rack systems, or synchronous belt drives, but they face significant challenges when exposed to industrial environments for extended periods.

[0003] Dust pollution is a significant concern: In typical working conditions such as welding, grinding, and casting, airborne pollutants such as metal shavings, abrasive dust, and oil mist can easily penetrate the guide rail grooves and gear meshing areas. Dust accumulation can lead to: increased friction coefficient between the slider and the guide rail, accelerating wear and causing a decrease in positioning accuracy; and abrasive wear on the tooth surfaces, resulting in abnormal transmission noise, vibration, and even tooth skipping.

[0004] Limitations of existing dust control solutions:

[0005] Dustproof components are mostly fixed metal covers or rubber covers, which can block some vertical dust, but cannot effectively seal the sides of the guide rail and the rack area; the fixed structure will hinder moving parts, and clearance gaps need to be set, but contamination channels are still left. Utility Model Content

[0006] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0007] Therefore, one objective of this utility model is to propose a dustproof seventh-axis robot transmission mechanism to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0008] To achieve the above objectives, one embodiment of the present invention provides a dustproof seventh-axis robot transmission mechanism, including a base, a base box, and a cable groove. The base is fixedly connected to the top of the base, and parallel cable grooves are provided on the side of the base box. The cable grooves have an opening at the top.

[0009] The top of the ground box is detachably connected to a cover plate, which is U-shaped.

[0010] The two sides of the ground box are fixedly connected to concealed tracks, which are covered by the edge of the cover plate;

[0011] A rack is fixedly connected to the side of the ground box, a slider is movably connected to the concealed track, and a joint is fixedly connected to the side of the slider. The joint is multi-bent.

[0012] A slide is fixedly connected to the top of the connector, and a robot is mounted on the top of the slide. A drive motor is fixedly connected to the side of the connector. The output end of the drive motor has a helical gear and this helical gear is movably connected to a rack.

[0013] A closed drag chain is fixedly connected to the side of the slide block, and the closed drag chain can be retracted into the cable groove.

[0014] Several flexible baffles are fixedly connected to the edge of the cover plate by connectors. The flexible baffles are in contact with each other, and the bottom end of the flexible baffles is bent inward, thus covering the side of the rack.

[0015] Preferably, in any of the above solutions, the base is fixed by a plurality of expansion bolts, and the base box and the cover plate are connected by screws.

[0016] The above technical solution utilizes a closed cable chain for internal wiring to power the robot and drive motor. The transmission principle is as follows: the drive motor's output rotates in both directions, and the gear and rack connected to its output are movably connected, allowing the slider to move bidirectionally on a concealed track, thus achieving linear movement of the slide and the robot.

[0017] The robots in this organization are seven-axis robots.

[0018] The core structure of this mechanism consists of: a cover plate, concealed tracks, a slider, a connector, a slide block, connecting parts, and flexible baffles. This mechanism boasts excellent dustproof performance. Concealed tracks are installed on both sides of the base box, covered by the cover plate. Connectors are designed to match these tracks, linking the slider and slide block to prevent dust from adhering to them. Flexible baffles are connected along the entire edge of the cover plate via connectors. These baffles do not obstruct the movement of the connector, slider, and slide block while acting as a dust curtain. When the connector passes, the flexible baffle lifts; after the slide block moves away, the flexible baffle returns to its original position, further protecting the rack and concealed tracks from dust. This double-barrier design significantly reduces dust intrusion, prevents wear on the tracks, rack, and their components, ensures smooth transmission, and extends their service life.

[0019] The flexible baffle is the perfect length to cover the side of the rack without contacting the output end of the drive motor or getting caught in it.

[0020] Preferably, the cover plate is made of stainless steel, and a gap is left between the top of the cover plate and the bottom of the slide block.

[0021] The above technical solution comprises the following components: The base is fixed to the ground with expansion bolts, and the top is connected to a ground box. Cable trays are symmetrically arranged on both sides of the ground box, with an open top design for easy cable routing.

[0022] Dustproof covering system: A U-shaped cover (made of stainless steel) is installed on the top of the base box and is detachably connected to the base box with screws. The edge of the cover extends to cover the concealed tracks on both sides of the base box, making the tracks completely sealed.

[0023] Transmission and actuation components: A rack is fixed to the inner wall of the chassis, with a concealed track arranged parallel to it directly above. A slider slides within the concealed track, and a U-shaped connector connects to the outside of the slider. A slide block is secured to the top of the connector with countersunk screws, and the robot is mounted on the slide block. A drive motor is mounted on the side of one connector, and its output helical gear meshes with the rack.

[0024] Dynamic dustproof assembly: Multiple flexible rubber strips (4-5mm thick) are fixed to the entire edge of the cover plate with rivets / screws. The flexible strips fit together to form a continuous dustproof curtain, with the bottom bending inward and extending 2-3cm below the toothed rack.

[0025] Cable protection system: A closed cable chain is connected to the side of the slide, and the cable chain can be retracted into the cable groove as the slide moves. The cable chain has a built-in power supply cable to power the robot and drive motor.

[0026] Preferably, in any of the above embodiments, the concealed track is located above the rack, and the joint is U-shaped.

[0027] The working principle is as follows: Transmission process: The drive motor drives the helical gear to rotate, which pushes the slider to move linearly along the hidden track through meshing with the rack. The slider drives the slide block to move synchronously via the U-shaped joint, realizing the robot's precise movement in the seventh axis direction.

[0028] Dynamic dustproof mechanism: Level 1 protection: A U-shaped cover completely covers the concealed track, preventing vertical dust intrusion. Level 2 protection: Flexible baffles tightly cover the rack and track side gaps. When the joint moves, its bent part pushes open the flexible baffles; after removal, the baffles automatically reset and close due to rubber elasticity, forming a dynamic sealing barrier. Level 3 protection: The enclosed cable chain is always constrained within the cable tray during extension and retraction, preventing cables from contacting dust.

[0029] Clearance control: A safe clearance (usually 0.5-1mm) is reserved between the cover plate and the bottom of the slide to ensure that the slide moves without interference.

[0030] Preferably, in any of the above solutions, the connector and the slider, and the connector and the slide block are assembled using a number of countersunk screws.

[0031] Preferably, in any of the above solutions, the connecting member is a rivet or screw, the bottom end of the flexible stop bar is located 2-3 cm below the rack, the flexible stop bar is made of rubber, the thickness of the flexible stop bar is 4-5 mm, and the flexible stop bar is movably connected to the joint when the slider is running.

[0032] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0033] This dustproof seventh-axis robot transmission mechanism utilizes a combination of cover plates, concealed tracks, sliders, joints, slides, connectors, and flexible baffles. The mechanism offers excellent dustproof performance. Concealed tracks are installed on both sides of the base box, covered by cover plates. Joints are designed for matching, connecting the slider and slide to prevent dust from adhering to them. Flexible baffles are connected along the entire edge of the cover plate, acting as a dust curtain without hindering the movement of the joints, sliders, and slides. When the joint passes, the flexible baffles lift; after the slide moves away, they return to their original position, further protecting the rack and concealed tracks from dust. This double-barrier design significantly reduces dust intrusion, prevents wear on the tracks, rack, and their components, ensures smooth transmission, and extends their service life.

[0034] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0036] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0037] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0038] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0039] Figure 4 This is a partial structural schematic diagram of the present invention.

[0040] In the diagram: 1-base, 2-base box, 3-cable trough, 4-cover plate, 5-concealed track, 6-rack, 7-slider, 8-connector, 9-slide seat, 10-robot, 11-drive motor, 12-enclosed cable chain, 13-connector, 14-flexible baffle. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] like Figure 1-4 As shown, the transmission mechanism of this dustproof seventh-axis robot includes a base 1, a base box 2, and a cable trough 3. The base 1 is fixedly connected to the top of the base box 2, and the side of the base box 2 is provided with parallel cable troughs 3. The top of the cable trough 3 is open.

[0044] The top of the ground box 2 is detachably connected to a cover plate 4, which is U-shaped;

[0045] Hidden tracks 5 are fixedly connected to both sides of the base box 2, and the hidden tracks 5 are covered by the edge of the cover plate 4;

[0046] A rack 6 is fixedly connected to the side of the ground box 2, and a slider 7 is movably connected to the concealed track 5. A connector 8 is fixedly connected to the side of the slider 7, and the connector 8 is multi-bent.

[0047] A slide 9 is fixedly connected to the top of the connector 8, and a robot 10 is mounted on the top of the slide 9. A drive motor 11 is fixedly connected to the side of the connector 8. The output end of the drive motor 11 has a helical gear and this helical gear is movably connected to the rack 6.

[0048] A closed drag chain 12 is fixedly connected to the side of the slide 9, and the closed drag chain 12 can be retracted into the cable groove 3;

[0049] Several flexible baffles 14 are fixedly connected to the edge of the cover plate 4 by the connector 13. The flexible baffles 14 are in contact with each other, and the bottom end of the flexible baffles 14 is bent inward, thus covering the side of the rack 6.

[0050] Example 1: The base 1 is fixed with multiple expansion bolts, and the base box 2 and cover plate 4 are connected by screws. The cover plate 4 is made of stainless steel, and there is a gap between the top of the cover plate 4 and the bottom of the slide 9. The concealed track 5 is located above the rack 6, and the joint 8 is U-shaped. The joint 8 is assembled with the slider 7 and the slide 9 using several countersunk screws. The connecting parts 13 are rivets or screws. The bottom end of the flexible stop 14 is located 2-3 cm below the rack 6. The flexible stop 14 is made of rubber and has a thickness of 4-5 mm. The flexible stop 14 is movably connected to the joint 8 when the slider 7 is running.

[0051] Example 2: In this mechanism, the internal wiring of the enclosed cable chain supplies power to the robot 10 and the drive motor 11. Transmission principle: The output end of the drive motor 11 rotates in both directions. The gear connected to its output end is movably connected to the rack 6, thereby allowing the slider 7 to move bidirectionally on the hidden track 5, thus achieving linear movement of the slide block 9 and the robot 10. The flexible stop bar 14 is the perfect length to cover the side of the rack 6 without contacting the output end of the drive motor 11 and thus preventing it from getting caught.

[0052] Mechanism Composition: Foundation Fixing Components: The base 1 is fixed to the ground with expansion bolts, and the top is connected to the ground box 2. Cable trays 3 are symmetrically arranged on both sides of the ground box 2, and the open design of the top of the cable trays 3 facilitates cable laying.

[0053] Dustproof covering system: A U-shaped cover plate 4 (made of stainless steel) is installed on the top of the base box 2, which is detachably connected to the base box 2 by screws. The edge of the cover plate 4 extends to cover the hidden tracks 5 on both sides of the base box 2, so that the tracks 5 are completely sealed.

[0054] Transmission actuator: A rack 6 is fixed to the inner wall of the base box 2, and a hidden track 5 is arranged parallel to the rack 6. A slider 7 slides within the hidden track 5, and a U-shaped connector 8 is connected to the outside of the slider 7. A slide block 9 is fixed to the top of the connector 8 by a countersunk screw, and the robot 10 is mounted on the slide block 9. A drive motor 11 is mounted on the side of one connector 8, and its output helical gear meshes with the rack 6.

[0055] Dynamic dustproof assembly: Multiple flexible rubber baffles 14 (4-5mm thick) are fixed along the entire edge of the cover plate 4 by rivets / screws 13. The flexible baffles 14 fit together to form a continuous dustproof curtain, with their bottoms bent inwards and extending 2-3cm below the rack 6.

[0056] Cable protection system: A closed cable chain 12 is connected to the side of the slide 9. The cable chain 12 can be retracted into the cable tray 3 when it moves with the slide 9. The cable chain 12 has a built-in power supply cable to power the robot 10 and the drive motor 11.

[0057] The robots in this organization are seven-axis robots.

[0058] The working principle of this utility model is as follows:

[0059] The working principle is as follows: Transmission process: The drive motor 11 drives the helical gear to rotate, which pushes the slider 7 to move linearly along the hidden track 5 through meshing with the rack 6. The slider 7 drives the slide block 9 to move synchronously through the U-shaped joint 8, realizing the precise walking of the robot 10 in the seventh axis direction.

[0060] Dynamic dustproof mechanism: Level 1 protection: The U-shaped cover plate 4 completely covers the concealed track 5, blocking vertical dust intrusion. Level 2 protection: The flexible baffle 14 tightly covers the rack 6 and the track side gaps. When the connector 8 moves, its bent part pushes open the flexible baffle 14; after being removed, the baffle 14 automatically resets and closes due to its rubber elasticity, forming a dynamic sealing barrier. Level 3 protection: The enclosed cable chain 12 is always constrained within the cable tray 3 during extension and retraction, preventing the cable from contacting dust.

[0061] Gap control: A safety gap (usually 0.5-1mm) is reserved between the cover plate 4 and the bottom of the slide 9 to ensure that the slide 9 moves without interference.

[0062] Compared with the prior art, the present invention has the following advantages:

[0063] This dustproof seventh-axis robot transmission mechanism is designed with a cover plate 4, a concealed track 5, a slider 7, a connector 8, a slide block 9, a connector 13, and a flexible baffle 14. This mechanism offers excellent dustproof performance. Concealed tracks 5 are installed on both sides of the base box 2 and covered by the cover plate 4. A connector 8 is designed for this purpose, connecting the slider 7 and the slide block 9 to prevent dust from adhering to them. Flexible baffles 14 are connected to the edges of the cover plate 4 via connectors 13. This design does not obstruct the movement of the connector 8, slider 7, and slide block 10 while acting as a dust curtain. When the connector 8 passes, the flexible baffle 14 lifts up; after the slide block 10 moves away, the flexible baffle 14 resets to cover the track, further protecting the rack 6 and concealed track 5 from dust. This double-barrier design significantly reduces dust intrusion, prevents wear on the track, rack 6, and their components, ensures smooth transmission, and extends their service life.

Claims

1. A dustproof seventh-axis robot transmission mechanism characterized by comprising: Includes a base (1), a base box (2), and a cable trough (3). The base (1) is fixedly connected to the top of the base box (2). The side of the base box (2) is provided with parallel cable troughs (3). The cable troughs (3) are open at the top. The top of the ground box (2) is detachably connected to a cover plate (4), which is U-shaped; The two sides of the ground box (2) are fixedly connected to a hidden track (5), which is covered by the edge of the cover plate (4); A rack (6) is fixedly connected to the side of the ground box (2), a slider (7) is movably connected to the hidden track (5), and a joint (8) is fixedly connected to the side of the slider (7). The joint (8) is multi-bent. The top of the connector (8) is fixedly connected to a slide (9), and a robot (10) is mounted on the top of the slide (9). A drive motor (11) is fixedly connected to the side of the connector (8). The output end of the drive motor (11) has a helical gear and this helical gear is movably connected to the rack (6). The side of the slide (9) is fixedly connected to a closed drag chain (12), which can be retracted into the cable groove (3); Several flexible baffles (14) are fixedly connected to the edge of the cover plate (4) by a connector (13). The flexible baffles (14) are in contact with each other, and the bottom end of the flexible baffles (14) is bent inward. The flexible baffles (14) cover the side of the rack (6).

2. The dustproof seventh axis robot transmission mechanism according to claim 1, characterized in that: The base (1) is fixed by multiple expansion bolts, and the ground box (2) and the cover plate (4) are connected by screws.

3. The dustproof seventh axis robot transmission mechanism according to claim 2, characterized in that: The cover plate (4) is made of stainless steel, and there is a gap between the top of the cover plate (4) and the bottom of the slide (9).

4. The dustproof seventh axis robot transmission mechanism according to claim 3, characterized in that: The concealed track (5) is located above the rack (6), and the joint (8) is U-shaped.

5. A dust protected seventh axis robot drive mechanism as claimed in claim 4, characterized in that The connector (8) and the slider (7), and the connector (8) and the slide (9) are assembled by a number of countersunk screws.

6. A dust protected seventh axis robot drive mechanism as claimed in claim 5, characterized in that The connector (13) is a rivet or screw. The bottom end of the flexible baffle (14) is located 2-3 cm below the rack (6). The flexible baffle (14) is made of rubber and has a thickness of 4-5 mm. The flexible baffle (14) is movably connected to the connector (8) when the slider (7) is running.

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