A robotic arm

Abstract

The present invention discloses a mechanical arm of a robot, comprising a mechanical rear arm, a heat dissipation mechanism is installed at a position near the upper end of the inner side of the mechanical rear arm, a motor is installed below the inner circuit board of the mechanical rear arm, a third bevel gear is fixedly connected to the lower end of the output shaft of the motor, a maintenance mechanism is installed at a position near one side of the upper end of the third bevel gear, the third bevel gear is meshingly connected to a fourth bevel gear, a connecting shaft is fixedly connected to the inner side of the fourth bevel gear, a mechanical forearm is fixedly connected to one side of the mechanical rear arm outside the connecting shaft, a cleaning mechanism is installed at the lower end of the mechanical rear arm, the mechanical arm can gradually extract lubricating oil when it is running, and after the mechanical arm has been running for a certain period of time, the lubricating oil can be output to the outside to lubricate the connection between the mechanical rear arm and the mechanical forearm and take away heat, so that the mechanical arm can perform maintenance and lubrication by itself without human operation.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical arm devices, and in particular to a mechanical arm of a robot. Background Art

[0002] Industrial robots are multi-joint manipulators or multi-degree-of-freedom machine devices widely used in industrial fields. They have a certain degree of automation and can rely on their own power and control capabilities to achieve various industrial processing and manufacturing functions. Industrial robots are widely used in various industrial fields such as electronics, logistics, and chemicals.

[0003] Existing robots can use mechanical arms for carrying operations, and most of them use gear-driven mechanical arms based on transmission efficiency to adapt to long-term and high-frequency work. However, in this working environment, the dust generated during cargo handling affects the heat dissipation holes of the mechanical arm, causing heat accumulation in the internal space of the mechanical arm. The mechanical arm rotates and rubs for a long time, and the high temperature will cause the mechanical arm to quickly consume lubricating oil, reducing the driving effect of the mechanical arm. In addition, the debris and dust generated by the friction of the gears can easily cause damage to the circuit board, affecting the operation of the mechanical arm. The rear arm of the robot, as a connecting piece between the robot body and the mechanical forearm, is under strong pressure and needs maintenance. For this reason, we propose a mechanical arm of a robot. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a mechanical arm of a robot.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a mechanical arm of a robot, comprising a mechanical rear arm, a vent is provided at the front end of the mechanical rear arm, a heat dissipation mechanism is installed on the inner side of the mechanical rear arm near the upper end, a circuit board is installed below the inner heat dissipation mechanism of the mechanical rear arm, a motor is installed below the inner circuit board of the mechanical rear arm, a third bevel gear is fixedly connected to the lower end of the output shaft of the motor, a maintenance mechanism is installed near one side of the upper end of the third bevel gear, the third bevel gear is meshingly connected to a fourth bevel gear, a connecting shaft is fixedly connected to the inner side of the fourth bevel gear, a mechanical forearm is fixedly connected to one side of the mechanical rear arm outside the connecting shaft, and a cleaning mechanism is installed at the lower end of the mechanical rear arm.

[0006] Preferably, the cleaning mechanism includes a fifth spur gear fixedly connected to the connecting shaft, the outer side of the fifth spur gear is rotatably connected to the third transmission belt, the inner side of the third transmission belt is rotatably connected to the sixth spur gear, one end of the sixth spur gear is fixedly connected to the second rotating shaft, the outer side of the second rotating shaft is rotatably connected to the oil tank, the upper end of the oil tank is fixedly connected to the lower leakage plate, the upper end of the lower leakage plate is fixedly connected to the mechanical rear arm, one end of the second rotating shaft is fixedly connected to the L-shaped connecting rod, one end of the L-shaped connecting rod is fixedly connected to the ball, the outer side of the ball is slidably connected to an arc-shaped rotating block, the outer side of the arc-shaped rotating block is provided with an arc-shaped sliding groove, the ball slides on the inner side of the arc-shaped sliding groove, the inner side of the arc-shaped sliding groove is rotatably connected to the third rotating shaft, the outer side of the third rotating shaft is rotatably connected to the oil tank, and one side of the arc-shaped sliding groove is fixedly connected to a magnetic rod.

[0007] Preferably, a pull rope is fixedly connected to the inner side of the magnetic rod, and two groups of symmetrical second fixed blocks are slidably connected to the outer side of the pull rope, and the two groups of second fixed blocks are fixedly connected to the oil tank. The pull rope is slidably connected to an adsorption plate, and the adsorption plate is fixedly connected to the inner side of the oil tank. Both ends of the second fixed blocks are commonly fixedly connected to a sweeping rod, and the lower end of the sweeping rod is in contact with the adsorption plate. A filter hole is opened on the outer side of the adsorption plate, and the inner side of the filter hole is a conical design that is wide at the top and narrow at the bottom.

[0008] Preferably, the outer side of the fifth spur gear is meshingly connected with the seventh spur gear, one end of the seventh spur gear is fixedly connected with the fourth rotating shaft, the outer side of the fourth rotating shaft is rotatably connected to the mechanical rear arm, and the inside of the mechanical rear arm outside the fourth rotating shaft is fixedly connected with multiple groups of sweeping strips, and one end of the sweeping strip is fitted with the upper end of the lower leakage plate.

[0009] Preferably, the heat dissipation mechanism includes a first spur gear fixedly connected to the fifth spur gear, the outer side of the first spur gear is rotatably connected to the first transmission belt, the outer side of the first transmission belt is rotatably connected to the second spur gear, one end of the second spur gear is fixedly connected to the first rotating shaft, the outer side of the first rotating shaft is rotatably connected to the inside of the mechanical rear arm, the outer side of the first rotating shaft is fixedly connected to the first bevel gear, the outer side of the first bevel gear is meshingly connected to the second bevel gear, the lower end of the second bevel gear is fixedly connected to the first sleeve, the outer side of the first sleeve is fixedly connected to a pressure rod, the front end of the pressure rod is arc-shaped, four groups of blades are fixedly connected below the pressure rod on the outer side of the first sleeve, the inner side of the first sleeve is rotatably connected to a T-shaped round rod, and the symmetrical ends of the T-shaped round rod are fixedly connected to the mechanical rear arm.

[0010] Preferably, the front end of the pressure rod is movably connected to a slide plate, the front end of the slide plate is fixedly connected to multiple groups of sweeping rods, the upper and lower ends of the sweeping rods fit with the vents, and the inner side of the slide plate is fixedly connected to two groups of symmetrical C-shaped sliding rods, and the front ends of the two groups of C-shaped sliding rods are fixedly connected to the rear arm of the machine.

[0011] Preferably, first springs are symmetrically arranged on both sides of the outer slide plate of the C-shaped slide bar, one end of the first spring is fixedly connected to the pressure rod, and the other end of the first spring is fixedly connected to the slide plate.

[0012] Preferably, the maintenance mechanism includes two groups of first fixed blocks fixedly connected to the mechanical rear arm, the adjacent ends of the two groups of first fixed blocks are commonly fixedly connected to a second sleeve, the inner side of the second sleeve is slidably connected to the output shaft of the motor, two groups of symmetrical rollers are arranged on the outer side of the output shaft of the motor, the outer side of the rollers is fixedly connected to a rubber ring, an oil delivery hose is arranged on the inner side of the second sleeve near the inner wall, the outer side of the rubber ring is fitted with the oil delivery hose, one end of the oil delivery hose is fixedly connected to the oil tank, the other end of the oil delivery hose is fixedly connected to a rubber piston head, the other end of the rubber piston head is fixedly connected to a buffer tube, and the rear end of the buffer tube is fixedly connected to a spray head.

[0013] Preferably, the maintenance mechanism also includes an outer gear ring fixedly connected to the outer side of the motor output shaft, the outer side of the outer gear ring is rotatably connected to the second transmission belt, the inner side of the second transmission belt is rotatably connected to the third spur gear, the third spur gear is rotatably connected to an L-shaped mounting plate via a rotating shaft, one end of the L-shaped mounting plate is fixedly connected to the second sleeve, the other end of the L-shaped mounting plate is fixedly connected to the buffer tube, a partition is fixedly connected to the outer side of the third spur gear near the middle, a fourth spur gear is meshedly connected below the outer partition of the third spur gear, the rear end of the fourth spur gear is rotatably connected to the L-shaped mounting plate via a rotating shaft, and the front end of the fourth spur gear is fixedly connected to a semi-spur gear.

[0014] Preferably, the outer side of the semi-spur gear is meshingly connected with a rack, the rack is slidably connected to the inner side of the buffer tube, the lower end of the rack is in contact with the inner wall of the buffer tube, one end of the rack is fixedly connected to the inner side of the buffer tube with a pressure plate, the outer side of the pressure plate is in contact with the inner wall of the buffer tube, a second spring is provided on the outer side of the rack, one end of the second spring is fixedly connected to the buffer tube, and the other end of the second spring is fixedly connected to the pressure plate.

[0015] The beneficial effects of the present invention are embodied in:

[0016] 1. Through the cooperation between the roller and the oil hose, the mechanical arm can gradually extract the lubricating oil when it is running, and after the mechanical arm has been running for a certain period of time, the lubricating oil can be output to the outside to lubricate the connection between the mechanical rear arm and the mechanical front arm, and take away some heat, so that the mechanical arm can perform maintenance and lubrication by itself without human operation. Through the cooperation between the outer gear ring and the third spur gear, the mechanical arm uses its kinetic energy when driving to squeeze the pressure plate in the buffer tube, so that the lubricating oil is sprayed outward through the spray head, so that the joints of the mechanical arm can be fully lubricated. The rubber ring can increase the contact area with the oil hose, thereby ensuring the air pressure, so that the lubricating oil can be continuously extracted upward, and the friction of the roller on the oil hose is reduced, thereby extending the service life of the device. The device as a whole does not require additional power systems and human intervention. The maintenance and maintenance operations can be performed by itself when the mechanical arm is running, reducing labor costs and improving the working efficiency of the mechanical arm.

[0017] 2. Through the cooperation of the fifth spur gear and the seventh spur gear, the sweeping bar cleans the lower leakage plate and the connecting shaft to avoid the accumulation of impurities on the top, which affects the rotation of the connecting shaft, and can recover the lubricating oil on the top downward, so that the oil hose can circulate and extract the lubricating oil. Through the cooperation of the ball and the arc chute, the arc chute is rotated at an angle, so that the magnetic rod moves back and forth in the lubricating oil to adsorb and collect metal debris, avoid clogging the oil hose, and prevent the lubricating oil from settling. Compared with rotating and stirring, shaking back and forth can reduce bubbles in the lubricating oil, facilitate the circulation of the lubricating oil, and improve the maintenance efficiency of the device. Through the cooperation of the magnetic rod and the pull rope, the sweeping rod can move on the upper end of the adsorption plate, and the moving angle of the pull rope is limited by the second fixed block, so that the adsorption plate cleans the adsorption plate evenly, and impurities are adsorbed by the filter holes. The lubricating oil can speed up the filtration speed and improve the circulation efficiency.

[0018] 3. The blades rotate to generate airflow through the cooperation between the first bevel gear and the second bevel gear, thereby exchanging heat inside the mechanical rear arm to avoid internal heat accumulation. The airflow can also be used to clean the dust outside the circuit board to avoid affecting the operation of the circuit board and reduce manual intervention. Through the cooperation between the pressure rod and the slide plate, the sweep rod can clean the vents and reset itself, so that the interior of the mechanical rear arm remains well ventilated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 A schematic diagram of the overall structure of a robot arm proposed by the present invention;

[0021] Figure 2 A schematic cross-sectional view of the mechanical arm structure of a robot proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of a robot arm cleaning mechanism proposed by the present invention;

[0023] Figure 4 A schematic cross-sectional view of the overall structure of a robot arm cleaning mechanism proposed by the present invention;

[0024] Figure 5 A robot arm of the present invention Figure 4 A schematic diagram of the structure enlargement of part A;

[0025] Figure 6 This is a schematic cross-sectional view of the overall structure of an adsorption plate in a robot arm proposed by the present invention;

[0026] Figure 7 A schematic diagram of the partial structure of the heat dissipation mechanism of the robot arm proposed by the present invention Figure 1 ;

[0027] Figure 8 A schematic diagram of the partial structure of the heat dissipation mechanism of the robot arm proposed by the present invention Figure 2 ;

[0028] Fig. 9 This is a schematic cross-sectional view of a partial structure of a heat dissipation mechanism of a robot arm proposed by the present invention;

[0029] Fig.10 This is a schematic diagram of the overall structure of a robot arm maintenance mechanism proposed by the present invention;

[0030] Fig.11 A schematic cross-sectional view of the overall structure of a robot arm maintenance mechanism proposed by the present invention;

[0031] Fig.12 A robot arm of the present invention Fig.11 A schematic diagram of the structure of part B in the middle is enlarged;

[0032] Fig.13 A schematic diagram of a sectional bottom view of the overall structure of a robot arm maintenance mechanism proposed by the present invention;

[0033] Fig.14 This is a schematic diagram of the overall structure of a partial structure of a robot arm maintenance mechanism proposed by the present invention.

[0034] In the attached drawings, 1, mechanical rear arm; 2, vent; 3, heat dissipation mechanism; 31, first spur gear; 32, first transmission belt; 33, second spur gear; 34, first rotating shaft; 35, first bevel gear; 36, second bevel gear; 37, first sleeve; 38, blade; 39, T-shaped round rod; 310, pressure rod; 311, slide plate; 312, sweep rod; 313, C-shaped slide bar; 314, first spring; 4, maintenance mechanism; 41, first fixed block; 42, second sleeve; 43, oil delivery hose; 44, roller; 45, rubber ring; 46, outer gear ring; 47, second transmission belt; 48, third spur gear; 49, partition; 410, rubber piston head; 411, L-shaped mounting plate; 412, fourth spur gear; 413, semi-spur gear ;414, rack;415, buffer tube;416, sprinkler head;417, pressure plate;418, second spring;5, cleaning mechanism;51, fifth spur gear;52, third transmission belt;53, sixth spur gear;54, second rotating shaft;55, L-shaped connecting rod;56, ball bearing;57, arc-shaped rotating block;58, arc-shaped slide groove;59, third rotating shaft;510, magnetic rod;511, pull rope;512, second fixed block;513, sweeping rod;514, adsorption plate;515, filter hole;516, oil tank;517, lower leakage plate;518, fourth rotating shaft;519, sweeping strip;520, seventh spur gear;6, circuit board;7, motor;8, third bevel gear;9, fourth bevel gear;10, connecting shaft;11, mechanical forearm. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0036] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the invention belongs.

[0037] As shown Figure 1-Figure 14 As shown, a mechanical arm of a robot comprises a mechanical rear arm 1, a vent 2 is provided at the front end of the mechanical rear arm 1, a heat dissipation mechanism 3 is installed on the inner side of the mechanical rear arm 1 near the upper end, a circuit board 6 is installed below the inner heat dissipation mechanism 3 of the mechanical rear arm 1, a motor 7 is installed below the inner circuit board 6 of the mechanical rear arm 1, a third bevel gear 8 is fixedly connected to the lower end of the output shaft of the motor 7, a maintenance mechanism 4 is installed near one side of the upper end of the third bevel gear 8, the third bevel gear 8 is meshingly connected to the fourth bevel gear 9, a connecting shaft 10 is fixedly connected to the inner side of the fourth bevel gear 9, a mechanical forearm 11 is fixedly connected to one side of the outer mechanical rear arm 1 of the connecting shaft 10, and a cleaning mechanism 5 is installed at the lower end of the mechanical rear arm 1.

[0038] In this embodiment, the cleaning mechanism 5 includes a fifth spur gear 51 fixedly connected to the connecting shaft 10, the outer side of the fifth spur gear 51 is rotatably connected to the third transmission belt 52, the inner side of the third transmission belt 52 is rotatably connected to the sixth spur gear 53, one end of the sixth spur gear 53 is fixedly connected to the second rotating shaft 54, the outer side of the second rotating shaft 54 ​​is rotatably connected to the oil tank 516, the upper end of the oil tank 516 is fixedly connected to the lower leakage plate 517, and the upper end of the lower leakage plate 517 is fixedly connected to the mechanical rear arm 1 One end of the second rotating shaft 54 ​​is fixedly connected to an L-shaped connecting rod 55, one end of the L-shaped connecting rod 55 is fixedly connected to a ball 56, the outer side of the ball 56 is slidably connected to an arc-shaped rotating block 57, the outer side of the arc-shaped rotating block 57 is provided with an arc-shaped slide groove 58, the ball 56 slides on the inner side of the arc-shaped slide groove 58, the inner side of the arc-shaped slide groove 58 is rotatably connected to a third rotating shaft 59, the outer side of the third rotating shaft 59 is rotatably connected to the oil tank 516, and one side of the arc-shaped slide groove 58 is fixedly connected to a magnetic rod 510.

[0039] Specifically, when the mechanical front arm 11 adjusts its angle, it drives the connecting shaft 10 to rotate, and the connecting shaft 10 drives the fifth spur gear 51 to rotate. The fifth spur gear 51 drives the sixth spur gear 53 to rotate through the third transmission belt 52, and the sixth spur gear 53 drives the second rotating shaft 54 ​​to rotate. The second rotating shaft 54 ​​drives the L-shaped connecting rod 55 to rotate. The L-shaped connecting rod 55 slides inside the arc-shaped slide groove 58 through the ball 56 to make the arc-shaped rotating block 57 rotate using the third rotating shaft 59. When the arc-shaped slide groove 58 moves back and forth, it drives the magnetic rod 510 to move at the bottom of the oil tank 516, so that the lubricating oil filtered from the top can absorb metal impurities, avoid clogging of the oil delivery hose 43, prevent lubricating oil from depositing, and reduce the generation of bubbles compared to stirring. The lower leakage plate 517 allows the dust and lubricating oil in the mechanical rear arm 1 to fall into the oil tank 516 for treatment.

[0040] In this embodiment, a pull rope 511 is fixedly connected to the inner side of the magnetic rod 510, and two groups of symmetrical second fixed blocks 512 are slidably connected to the outer side of the pull rope 511. The two groups of second fixed blocks 512 are fixedly connected to the oil tank 516. The pull rope 511 is slidably connected to the adsorption plate 514, and the adsorption plate 514 is fixedly connected to the inner side of the oil tank 516. The two ends of the second fixed blocks 512 are commonly fixedly connected to a sweeping rod 513, and the lower end of the sweeping rod 513 is in contact with the adsorption plate 514. A filter hole 515 is opened on the outer side of the adsorption plate 514, and the inner side of the filter hole 515 is a conical design that is wide at the top and narrow at the bottom.

[0041] Specifically, when the magnetic rod 510 is shaken, the sweeping rod 513 is pulled by the pull rope 511 to slide on the upper end of the adsorption plate 514, thereby avoiding accumulation on the upper end of the adsorption plate 514, allowing the lubricating oil to quickly seep down and impurities to be quickly adsorbed. The second fixed block 512 allows the pull rope 511 to maintain a certain angle for sliding, thereby allowing the sweeping rod 513 to maintain a horizontal angle for sliding.

[0042] In this embodiment, the outer side of the fifth spur gear 51 is meshingly connected with the seventh spur gear 520, one end of the seventh spur gear 520 is fixedly connected with the fourth rotating shaft 518, the outer side of the fourth rotating shaft 518 is rotatably connected to the mechanical rear arm 1, and the inner side of the mechanical rear arm 1 outside the fourth rotating shaft 518 is fixedly connected with multiple groups of sweeping bars 519, and one end of the sweeping bar 519 is in contact with the upper end of the lower leakage plate 517.

[0043] Specifically, the fifth spur gear 51 engages to drive the seventh spur gear 520 to rotate, so that the seventh spur gear 520 drives the fourth rotating shaft 518 to rotate, and the fourth rotating shaft 518 cleans the lower leakage plate 517 and the connecting shaft 10 through the sweeping bar 519, so that impurities sticking to the outside of the connecting shaft 10 can fall off and are concentrated downward through the lower leakage plate 517 to avoid dust or impurities accumulating on the upper end of the lower leakage plate 517.

[0044] In this embodiment, the heat dissipation mechanism 3 includes a first spur gear 31 fixedly connected to the fifth spur gear 51, the outer side of the first spur gear 31 is rotatably connected to the first transmission belt 32, the outer side of the first transmission belt 32 is rotatably connected to the second spur gear 33, one end of the second spur gear 33 is fixedly connected to the first rotating shaft 34, the outer side of the first rotating shaft 34 is rotatably connected to the inside of the mechanical rear arm 1, the outer side of the first rotating shaft 34 is fixedly connected to the first bevel gear 35, the outer side of the first bevel gear 35 is meshingly connected to the second bevel gear 36, the lower end of the second bevel gear 36 is fixedly connected to the first sleeve 37, the outer side of the first sleeve 37 is fixedly connected to the pressure rod 310, the front end of the pressure rod 310 is arc-shaped, and four groups of blades 38 are fixedly connected to the outer side of the first sleeve 37 below the pressure rod 310, the inner side of the first sleeve 37 is rotatably connected to the T-shaped round rod 39, and the symmetrical two ends of the T-shaped round rod 39 are fixedly connected to the mechanical rear arm 1.

[0045] Specifically, when the fifth spur gear 51 rotates, it drives the first spur gear 31 to rotate, the first spur gear 31 drives the second spur gear 33 to rotate through the first transmission belt 32, the second spur gear 33 drives the first rotating shaft 34 to rotate, the first rotating shaft 34 drives the first bevel gear 35 to rotate, the first bevel gear 35 drives the second bevel gear 36 to rotate, the second bevel gear 36 rotates while maintaining its position through the T-shaped round rod 39, the second bevel gear 36 rotates the blade 38 through the first sleeve 37 to generate airflow, so that the internal heat of the mechanical rear arm 1 is exchanged and the dust on the front and rear ends of the circuit board 6 is cleaned.

[0046] In this embodiment, the front end of the pressure rod 310 is movably connected to a slide plate 311, and the front end of the slide plate 311 is fixedly connected to multiple groups of sweeping rods 312. The upper and lower ends of the sweeping rods 312 fit with the vents 2. The inner side of the slide plate 311 is fixedly connected to two groups of symmetrical C-shaped sliding rods 313, and the front ends of the two groups of C-shaped sliding rods 313 are fixedly connected to the mechanical rear arm 1.

[0047] Specifically, when the first sleeve 37 rotates, it drives the pressure rod 310 to rotate. When the pressure rod 310 rotates, it touches the slide plate 311 due to the arc design, so that the slide plate 311 slides outside the C-shaped slide bar 313. The slide plate 311 drives the sweeping rod 312 to slide in the vent 2 to clean the dust.

[0048] In this embodiment, first springs 314 are symmetrically arranged on both sides of the outer slide plate 311 of the C-shaped slide bar 313 , one end of the first spring 314 is fixedly connected to the pressure rod 310 , and the other end of the first spring 314 is fixedly connected to the slide plate 311 .

[0049] Specifically, when the slide plate 311 is pushed to slide, the first spring 314 is compressed. After the pressure rod 310 and the slide plate 311 are offset, the first spring 314 is opened to reset the slide plate 311 to keep the ventilation of the vent 2.

[0050] In this embodiment, the maintenance mechanism 4 includes two groups of first fixed blocks 41 fixedly connected to the mechanical rear arm 1, and the adjacent ends of the two groups of first fixed blocks 41 are commonly fixedly connected to the second sleeve 42. The inner side of the second sleeve 42 is slidably connected to the output shaft of the motor 7. Two groups of symmetrical rollers 44 are arranged on the outer side of the output shaft of the motor 7. The outer side of the roller 44 is fixedly connected to a rubber ring 45. An oil delivery hose 43 is arranged on the inner side of the second sleeve 42 near the inner wall. The outer side of the rubber ring 45 is fitted with the oil delivery hose 43. One end of the oil delivery hose 43 is fixedly connected to the oil tank 516, and the other end of the oil delivery hose 43 is fixedly connected to a rubber piston head 410. The other end of the rubber piston head 410 is fixedly connected to a buffer tube 415, and the rear end of the buffer tube 415 is fixedly connected to a spray head 416.

[0051] Specifically, when the motor 7 is started, the kinetic energy is used to make the roller 44 rotate in the second sleeve 42 and roll over the oil hose 43 for multiple times. Then the roller 44 pushes the air in the oil hose 43, and the air pressure is used to make the oil hose 43 extract the lubricating oil at the bottom of the oil tank 516, which is then gradually accumulated and output. In this way, the robot arm will output the lubricating oil for maintenance only after a certain working time. The rubber piston head 410 acts as a one-way valve to prevent the extracted lubricating oil from flowing back to the oil hose 43. The spray head 416 allows the lubricating oil to be sprayed evenly outward, making the lubrication more comprehensive.

[0052] In this embodiment, the maintenance mechanism 4 also includes an outer gear ring 46 fixedly connected to the outer side of the output shaft of the motor 7, the outer side of the outer gear ring 46 is rotatably connected to the second transmission belt 47, the inner side of the second transmission belt 47 is rotatably connected to the third spur gear 48, the third spur gear 48 is rotatably connected to the L-shaped mounting plate 411 through a rotating shaft, one end of the L-shaped mounting plate 411 is fixedly connected to the second sleeve 42, and the other end of the L-shaped mounting plate 411 is fixedly connected to the buffer tube 415, and a partition plate 49 is fixedly connected to the outer side of the third spur gear 48 near the middle position, and a fourth spur gear 412 is meshedly connected below the outer partition plate 49 of the third spur gear 48, the rear end of the fourth spur gear 412 is rotatably connected to the L-shaped mounting plate 411 through a rotating shaft, and the front end of the fourth spur gear 412 is fixedly connected to a semi-spur gear 413.

[0053] Specifically, the motor 7 drives the outer gear ring 46 to rotate, and the outer gear ring 46 drives the third spur gear 48 to rotate through the second transmission belt 47. The partition 49 limits the position of the second transmission belt 47 to be staggered with the fourth spur gear 412. The third spur gear 48 drives the fourth spur gear 412 to rotate, and the fourth spur gear 412 drives the semi-spur gear 413 to rotate. The L-shaped mounting plate 411 provides installation space for the third spur gear 48 and the partition 49. The second sleeve 42 is connected to the buffer tube 415 through the L-shaped mounting plate 411 to ensure the position of the buffer tube 415. The first fixed block 41 ensures the position of the second sleeve 42.

[0054] In this embodiment, the outer side of the semi-spur gear 413 is meshingly connected with a rack 414, and the rack 414 is slidably connected to the inner side of the buffer tube 415. The lower end of the rack 414 is in contact with the inner wall of the buffer tube 415. A pressure plate 417 is fixedly connected to the inner side of the buffer tube 415 at one end of the rack 414, and the outer side of the pressure plate 417 is in contact with the inner wall of the buffer tube 415. A second spring 418 is provided on the outer side of the rack 414, and one end of the second spring 418 is fixedly connected to the buffer tube 415, and the other end of the second spring 418 is fixedly connected to the pressure plate 417.

[0055] Specifically, the semi-spur gear 413 drives the rack 414 to slide in the buffer tube 415, and the buffer tube 415 drives the pressure plate 417 to slide. When the pressure plate 417 slides, it presses the second spring 418. When the semi-spur gear 413 and the rack 414 are offset, the rack 414 is reset when the second spring 418 opens, and the pressure plate 417 squeezes the lubricating oil in the buffer tube 415, so that the lubricating oil is sprayed downward through the spray head 416.

[0056] Working principle: when in use, start the motor 7 inside the mechanical rear arm 1, so that the motor 7 drives the third bevel gear 8 to rotate, the third bevel gear 8 drives the fourth bevel gear 9 to rotate, the fourth bevel gear 9 drives the mechanical front arm 11 to adjust the angle through the connecting shaft 10, when the connecting shaft 10 rotates, it drives the fifth spur gear 51 to rotate, the fifth spur gear 51 drives the sixth spur gear 53 to rotate through the third transmission belt 52, the sixth spur gear 53 drives the second rotating shaft 54 ​​to rotate, the second rotating shaft 54 ​​drives the L-shaped connecting rod 55 to rotate, the L-shaped connecting rod 55 slides in the arc-shaped slide groove 58 through the ball 56 to make the arc-shaped rotating block 57 rotate using the third rotating shaft 59, when the arc-shaped slide groove 58 moves back and forth, it drives the magnetic rod 510 to move at the bottom of the oil tank 516, so that the lubricating oil filtered above can absorb metal impurities to avoid the oil delivery hose 43 The magnetic rod 510 pulls the sweeping rod 513 back and forth through the pull rope 511, so that the sweeping rod 513 sweeps the upper end of the adsorption plate 514, so that dust and other impurities can be adsorbed by the filter hole 515, and the refluxed lubricating oil can quickly penetrate downward. The second fixed block 512 limits the moving range of the pull rope 511, so that the pull rope 511 moves in a direction of ninety degrees, so that the sweeping rod 513 can maintain parallel movement, and the fifth spur gear 51 is engaged to drive the seventh spur gear 520 to rotate, so that the seventh spur gear 520 drives the fourth rotating shaft 518 to rotate, and the fourth rotating shaft 518 cleans the lower leakage plate 517 and the connecting shaft 10 through the sweeping strip 519, so that the impurities on the outer side of the connecting shaft 10 can fall off, and are concentrated downward through the lower leakage plate 517 to avoid accumulation at the upper end of the lower leakage plate 517;

[0057] When the motor 7 rotates, it drives the roller 44 to rotate on the inner wall of the second sleeve 42 and rolls the oil hose 43 several times, so that the compressed position of the oil hose 43 drives the rear air pressure to rise upward, so that the oil hose 43 draws the lubricating oil at the bottom of the oil tank 516, and the rubber ring 45 can increase the contact area with the oil hose 43, making the air pressure more dense, reducing the friction of the roller 44, and the extracted lubricating oil is output to the buffer tube 415 through the oil hose 43, and then discharged downward through the spray head 416 to lubricate the third bevel gear 8 and the fourth bevel gear 9. After lubrication, the excess lubricating oil drips downward and returns to the oil tank 516 for multiple cycles. The motor 7 drives the outer gear ring 46 to rotate, and the outer gear ring 46 drives the third spur gear 48 to rotate through the second transmission belt 47. The partition plate 49 limits the position of the second transmission belt 47 to be staggered with the fourth spur gear 412, and the third spur gear 4 8 drives the fourth spur gear 412 to rotate, the fourth spur gear 412 drives the semi-spur gear 413 to rotate, the semi-spur gear 413 drives the rack 414 to slide in the buffer tube 415, the buffer tube 415 drives the pressure plate 417 to slide, the pressure plate 417 presses the second spring 418 when sliding, when the semi-spur gear 413 and the rack 414 are staggered, the rack 414 is reset when the second spring 418 is opened, the pressure plate 417 squeezes the lubricating oil in the buffer tube 415, so that the lubricating oil is sprayed downward through the spray head 416, and the rubber piston head 410 prevents the high pressure from causing the lubricating oil to flow back into the oil delivery hose 43, so that the lubrication effect is better and more comprehensive, the L-shaped mounting plate 411 provides mounting space for the third spur gear 48 and the partition plate 49, the second sleeve 42 is connected to the buffer tube 415 through the L-shaped mounting plate 411 to ensure the position of the buffer tube 415, and the first fixing block 41 ensures the position of the second sleeve 42;

[0058] When the fifth spur gear 51 rotates, it drives the first spur gear 31 to rotate. The first spur gear 31 drives the second spur gear 33 to rotate through the first transmission belt 32. The second spur gear 33 drives the first rotating shaft 34 to rotate. The first rotating shaft 34 drives the first bevel gear 35 to rotate. The first bevel gear 35 drives the second bevel gear 36 to rotate. The second bevel gear 36 rotates while being held in position by the T-shaped round rod 39. The second bevel gear 36 rotates the blade 38 through the first sleeve 37 to generate airflow, so that the interior of the mechanical rear arm 1 is heat exchanged and cleaned. To clean the dust at the front and rear ends of the circuit board 6, the first sleeve 37 rotates to drive the pressure rod 310 to rotate. When the pressure rod 310 rotates, it will touch the slide plate 311 due to the arc design, so that the slide plate 311 slides on the outside of the C-shaped slide bar 313, and then pushes the slide plate 311 to press the first spring 314, so that the slide plate 311 drives the sweeping rod 312 to slide in the vent 2 to clean the dust. After the pressure rod 310 and the slide plate 311 are staggered, the first spring 314 opens to reset the slide plate 311 to keep the vent 2 ventilated.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A robot arm, comprising a rear arm (1), characterized in that: The front end of the mechanical rear arm (1) is provided with a vent (2); a heat dissipation mechanism (3) is installed at a position near the upper end of the inner side of the mechanical rear arm (1); a circuit board (6) is installed below the heat dissipation mechanism (3) inside the mechanical rear arm (1); a motor (7) is installed below the circuit board (6) inside the mechanical rear arm (1); a third bevel gear (8) is fixedly connected to the lower end of the output shaft of the motor (7); a maintenance mechanism (4) is installed near one side of the upper end of the third bevel gear (8); the third bevel gear (8) is meshedly connected to a fourth bevel gear (9); a connecting shaft (10) is fixedly connected to the inner side of the fourth bevel gear (9); a mechanical forearm (11) is fixedly connected to the outer side of the connecting shaft (10) on one side of the mechanical rear arm (1); and a cleaning mechanism (5) is installed at the lower end of the mechanical rear arm (1).

2. The robot arm according to claim 1, characterized in that: The cleaning mechanism (5) comprises a fifth spur gear (51) fixedly connected to the connecting shaft (10); the outer side of the fifth spur gear (51) is rotatably connected to a third transmission belt (52); the inner side of the third transmission belt (52) is rotatably connected to a sixth spur gear (53); one end of the sixth spur gear (53) is fixedly connected to a second rotating shaft (54); the outer side of the second rotating shaft (54) is rotatably connected to an oil tank (516); the upper end of the oil tank (516) is fixedly connected to a lower leakage plate (517); the upper end of the lower leakage plate (517) is fixedly connected to the mechanical rear arm (1); and the second One end of the rotating shaft (54) is fixedly connected to an L-shaped connecting rod (55), one end of the L-shaped connecting rod (55) is fixedly connected to a ball (56), the outer side of the ball (56) is slidably connected to an arc-shaped rotating block (57), the outer side of the arc-shaped rotating block (57) is provided with an arc-shaped sliding groove (58), the ball (56) slides on the inner side of the arc-shaped sliding groove (58), the inner side of the arc-shaped sliding groove (58) is rotatably connected to a third rotating shaft (59), the outer side of the third rotating shaft (59) is rotatably connected to an oil tank (516), and one side of the arc-shaped sliding groove (58) is fixedly connected to a magnetic rod (510).

3. The robot arm according to claim 2, characterized in that: A pull rope (511) is fixedly connected to the inner side of the magnetic rod (510), and two groups of symmetrical second fixed blocks (512) are slidably connected to the outer side of the pull rope (511), and the two groups of second fixed blocks (512) are fixedly connected to the oil tank (516). The pull rope (511) is slidably connected to an adsorption plate (514), and the adsorption plate (514) is fixedly connected to the inner side of the oil tank (516). Both ends of the second fixed blocks (512) are fixedly connected to a sweeping rod (513), and the lower end of the sweeping rod (513) is in contact with the adsorption plate (514). A filter hole (515) is provided on the outer side of the adsorption plate (514), and the inner side of the filter hole (515) is of a conical design that is wide at the top and narrow at the bottom.

4. The robot arm according to claim 2, characterized in that: The outer side of the fifth spur gear (51) is meshingly connected with a seventh spur gear (520), one end of the seventh spur gear (520) is fixedly connected with a fourth rotating shaft (518), the outer side of the fourth rotating shaft (518) is rotationally connected to the mechanical rear arm (1), and the inner side of the mechanical rear arm (1) outside the fourth rotating shaft (518) is fixedly connected with a plurality of sweeping strips (519), and one end of the sweeping strips (519) is in contact with the upper end of the lower leakage plate (517).

5. The robot arm according to claim 1, characterized in that: The heat dissipation mechanism (3) comprises a first spur gear (31) fixedly connected to a fifth spur gear (51); the outer side of the first spur gear (31) is rotatably connected to a first transmission belt (32); the outer side of the first transmission belt (32) is rotatably connected to a second spur gear (33); one end of the second spur gear (33) is fixedly connected to a first rotating shaft (34); the outer side of the first rotating shaft (34) is rotatably connected to the inside of the mechanical rear arm (1); the outer side of the first rotating shaft (34) is fixedly connected to a first bevel gear (35); the first bevel gear (35) is 5) is meshingly connected to the outer side of a second bevel gear (36), the lower end of the second bevel gear (36) is fixedly connected to a first sleeve (37), the outer side of the first sleeve (37) is fixedly connected to a pressure rod (310), the front end of the pressure rod (310) is designed to be arc-shaped, and four groups of blades (38) are fixedly connected below the pressure rod (310) on the outer side of the first sleeve (37), and the inner side of the first sleeve (37) is rotatably connected to a T-shaped round rod (39), and the two symmetrical ends of the T-shaped round rod (39) are fixedly connected to the mechanical rear arm (1).

6. The mechanical arm of a robot according to claim 5, characterized in that: The front end of the pressure rod (310) is movably connected to a slide plate (311), and the front end of the slide plate (311) is fixedly connected to a plurality of sweeping rods (312), and the upper and lower ends of the sweeping rods (312) fit in with the vents (2). The inner side of the slide plate (311) is fixedly connected to two groups of symmetrical C-shaped sliding rods (313), and the front ends of the two groups of C-shaped sliding rods (313) are fixedly connected to the mechanical rear arm (1).

7. The robot arm according to claim 6, characterized in that: First springs (314) are symmetrically arranged on both sides of the outer slide plate (311) of the C-shaped slide bar (313); one end of the first spring (314) is fixedly connected to the pressure rod (310); and the other end of the first spring (314) is fixedly connected to the slide plate (311).

8. The robot arm according to claim 1, characterized in that: The maintenance mechanism (4) comprises two groups of first fixing blocks (41) fixedly connected to the mechanical rear arm (1); the adjacent ends of the two groups of first fixing blocks (41) are commonly fixedly connected to a second sleeve (42); the inner side of the second sleeve (42) is slidably connected to the output shaft of the motor (7); two groups of symmetrical rollers (44) are arranged on the outer side of the output shaft of the motor (7); the outer side of the rollers (44) is fixedly connected to a rubber ring (45); an oil delivery hose (43) is arranged on the inner side of the second sleeve (42) near the inner wall; the outer side of the rubber ring (45) is fitted with the oil delivery hose (43); one end of the oil delivery hose (43) is fixedly connected to an oil tank (516); the other end of the oil delivery hose (43) is fixedly connected to a rubber piston head (410); the other end of the rubber piston head (410) is fixedly connected to a buffer tube (415); the rear end of the buffer tube (415) is fixedly connected to a spray head (416).

9. The robot arm according to claim 8, characterized in that: The maintenance mechanism (4) further comprises an outer gear ring (46) fixedly connected to the outer side of the output shaft of the motor (7); the outer side of the outer gear ring (46) is rotatably connected to a second transmission belt (47); the inner side of the second transmission belt (47) is rotatably connected to a third spur gear (48); the third spur gear (48) is rotatably connected to an L-shaped mounting plate (411) via a rotating shaft; one end of the L-shaped mounting plate (411) is fixedly connected to the second sleeve (42); the other end of the L-shaped mounting plate (411) is fixedly connected to a buffer tube (415); a partition plate (49) is fixedly connected to the outer side of the third spur gear (48) near the middle; a fourth spur gear (412) is meshingly connected below the outer partition plate (49) of the third spur gear (48); the rear end of the fourth spur gear (412) is rotatably connected to the L-shaped mounting plate (411) via a rotating shaft; and the front end of the fourth spur gear (412) is fixedly connected to a semi-spur gear (413).

10. The robot arm according to claim 9, characterized in that: The outer side of the semi-spur gear (413) is meshingly connected with a rack (414), the rack (414) is slidably connected to the inner side of the buffer tube (415), the lower end of the rack (414) is in contact with the inner wall of the buffer tube (415), one end of the rack (414) is fixedly connected to the inner side of the buffer tube (415) with a pressure plate (417), the outer side of the pressure plate (417) is in contact with the inner wall of the buffer tube (415), a second spring (418) is provided on the outer side of the rack (414), one end of the second spring (418) is fixedly connected to the buffer tube (415), and the other end of the second spring (418) is fixedly connected to the pressure plate (417).

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