Industrial robot articulated arm with automatic lubricating function

Abstract

The utility model discloses an industrial robot articulated arm with an automatic lubricating function, and relates to the technical field of industrial robots. The mechanical arm comprises an arm base and a first joint installed in the center of the upper surface of the arm base, the end face of one side of a first connecting base is fixedly connected with a second joint, the other end of the second connecting base is movably connected with a third joint, and reciprocating assemblies are arranged behind the first joint and the first connecting base and behind the second connecting base and the third joint. A filter sucker is mounted at one end of the oil outlet pipe. Lubricating oil can be pressed out to the joint position of the joint arm of the industrial robot through the reciprocating assembly without external power driving, the lubricating effect is achieved, energy consumption is greatly saved, cost is reduced, the pressed lubricating oil can be filtered through the filter screen in the filter suction head, and the service life of the industrial robot is prolonged. Impurities in the lubricating oil are prevented from flowing into the joint of the joint arm of the industrial robot to damage the joint arm and affect use.

Description

Technical Field

[0001] This utility model belongs to the field of industrial robot technology, and in particular relates to an industrial robot articulated arm with automatic lubrication function. Background Technology

[0002] Industrial robots are multi-jointed manipulators or multi-degree-of-freedom machines designed for industrial applications. They can perform tasks automatically and rely on their own power and control capabilities to achieve various functions. They can be commanded by humans or run according to pre-programmed procedures. To protect the components at the joints of industrial robots and to ensure their efficient operation, lubricating oil is generally added to the joints of the industrial robot to guarantee their normal rotation.

[0003] A search revealed that publication number CN214025776U, with an application date of December 28, 2020, discloses a robot with an automatically lubricated joint, relating to the field of robot technology. This robot with an automatically lubricated joint includes a robot body. An oil supply pipe is fixedly installed on the front side of the robot body, and an insertion tube is fixedly connected to the oil supply pipe. The insertion tube is fixed to the robot body, and a first oil inlet pipe is fixedly connected to one side of the insertion tube. An oil storage mechanism is provided on the robot body, and a fixing plate is fixedly connected to one side of the robot body. A first bracket is fixedly installed on the top of the fixing plate.

[0004] However, it still has the following drawbacks in practical use:

[0005] The aforementioned robot with automatic lubrication joints supplies oil through an autonomous oil delivery mechanism and an oil pumping mechanism during use. However, this method requires a drive device during operation, which increases energy consumption and costs.

[0006] 2. The aforementioned robots with self-lubricating joints lack lubricant filtration during use. Therefore, impurities in the lubricant may flow into the joints of the industrial robot arm, causing wear. To address this problem, we provide an industrial robot arm with self-lubrication functionality. Utility Model Content

[0007] The purpose of this invention is to provide an industrial robot articulated arm with an automatic lubrication function. By setting a reciprocating component, lubricating oil can be pressed out to the joint of the industrial robot articulated arm without external power drive, thus playing a lubricating role, greatly saving energy consumption and reducing costs. In addition, the filter screen in the filter head can filter the pressed-out lubricating oil to prevent impurities in the lubricating oil from flowing into the joint of the industrial robot articulated arm, causing wear and damage to the joint components of the industrial robot articulated arm, and affecting its use.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0009] This utility model relates to an industrial robot articulated arm with automatic lubrication function, including an arm base and a first joint installed at the center of its upper surface. The top of the first joint is movably connected to a first connecting seat. A second joint is fixedly connected to one side of the first connecting seat. The other end of the second joint is fixedly connected to a second connecting seat. The other end of the second connecting seat is movably connected to a third joint. An oil tank is installed on one side of the outer wall of both the first joint and the third joint. An oil outlet pipe is provided inside the oil tank. Reciprocating components are provided behind the first joint, the first connecting seat, the second connecting seat, and the third joint. A filter suction head is installed at one end of the oil outlet pipe.

[0010] The reciprocating assembly includes a turntable located behind the first and third joints, and a locking block located on the outer side of the turntable. A protrusion is fixedly connected to the outer wall of the turntable.

[0011] The present invention is further configured such that a drive mechanism is provided in front of the first joint and the first connecting seat, the second connecting seat and the third joint, a filler port is provided at the center of the top of the oil tank, and a first air inlet pipe is provided on the upper side of the outer wall of the oil tank.

[0012] The present invention is further configured such that the other end of the oil outlet pipe passes through the inner wall of the oil tank and is connected to the spray pipe through a pipe joint, and the other end of the spray pipe is connected to the nozzle through a pipe joint.

[0013] The present invention is further configured such that a rotating shaft is fixedly connected to the center position of the front end face of the turntable, and the other end of the rotating shaft is rotatably connected to a bearing in the rear end face of the adjacent first joint or the rear end face of the adjacent third joint, and a locking block is locked on the outside of the protrusion.

[0014] The present invention is further configured such that a connecting plate is fixedly connected to the top of the card block, one end of the connecting plate is fixed to the rear end face of the adjacent first connecting seat or the adjacent second connecting seat, and an insert rod is fixedly connected to the bottom of the front end face of the turntable, and a connecting rod is rotatably sleeved on the outer wall of the insert rod.

[0015] The present invention is further configured such that the bottom end of the linkage rod is movably connected to the piston surface via a hinge, the piston is located inside the air cylinder, the front end face of the air cylinder is mounted on the rear end face of the adjacent first joint or the rear end face of the adjacent third joint, and a second air inlet pipe is provided at the center of the bottom of the air cylinder.

[0016] The present invention is further configured such that an air outlet pipe is provided at the bottom of one side of the outer wall of the air cylinder, and a one-way valve is provided on the second air inlet pipe and the air outlet pipe respectively. The other end of the air outlet pipe is connected to the connecting pipe through a pipe joint, and the other end of the connecting pipe is connected to the first air inlet pipe through a pipe joint.

[0017] The present invention is further configured such that a double-headed limiting ring is fixedly connected to the upper part of the outer wall of the filter suction head, a counterweight is sleeved in the middle of the outer wall of the double-headed limiting ring, and a filter screen is installed at the bottom of the inner part of the filter suction head.

[0018] This utility model has the following beneficial effects:

[0019] This invention, by setting up a reciprocating component, can synchronously drive the piston to circulate during the rotation and adjustment of the industrial robot's articulated arm. This causes the gas in the air cylinder to be forced into the oil tank, and then the lubricating oil in the oil tank is forced out from the nozzle to the joint of the industrial robot's articulated arm, thus achieving a lubrication effect. No external power drive is required, which can greatly save energy consumption and reduce costs. This solves the problem that the above-mentioned robots with automatic lubrication joints rely on autonomous oil delivery and pumping mechanisms to supply oil, which requires drive equipment during operation, thus increasing energy consumption and costs.

[0020] This invention, by incorporating a filter suction head, utilizes a filter screen within the suction head to filter the pressed-out lubricating oil. This prevents impurities in the lubricating oil from flowing into the joints of the industrial robot's articulated arm, causing wear and tear on the joint components and affecting its use. It solves the problem mentioned above where robots with automatic lubrication joints lack lubricating oil filtration measures, allowing impurities in the lubricating oil to flow into the joints of the industrial robot's articulated arm and cause wear.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an industrial robot articulated arm with automatic lubrication function.

[0024] Figure 2 This is a disassembly diagram of the arm mount.

[0025] Figure 3 This is a cross-sectional view of the fuel tank.

[0026] Figure 4 This is a structural diagram of the reciprocating component.

[0027] Figure 5 This is a cross-sectional view of the turntable and the air cylinder.

[0028] Figure 6 This is a structural diagram of the filter head.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1-Arm base, 101-First joint, 102-Second joint, 102a-First connecting seat, 102b-Second connecting seat, 103-Third joint, 104-Drive mechanism, 105-Oil tank, 105a-Filling port, 105b-First air inlet pipe, 105c-Oil outlet pipe, 105d-Nozzle, 105e-Nozzle head, 2-Reciprocating assembly, 201-Turntable, 201a-Rotating shaft, 201b-Protrusion, 201c-Insertion rod, 202-Clamping block, 202a-Connecting plate, 203-Connecting rod, 203a-Piston, 204-Air cylinder, 204a-Second air inlet pipe, 204b-Air outlet pipe, 204c-Connecting pipe, 3-Filter suction head, 301-Double-head limiting ring, 302-Counterweight block, 303-Filter screen. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1, please refer to Figures 1 to 5 This utility model is an industrial robot articulated arm with automatic lubrication function, including an arm base 1 and a first joint 101 installed at the center of its upper surface. The top end of the first joint 101 is movably connected to a first connecting seat 102a. A second joint 102 is fixedly connected to one side end face of the first connecting seat 102a. The other end of the second joint 102 is fixedly connected to a second connecting seat 102b. The other end of the second connecting seat 102b is movably connected to a third joint 103. An oil tank 105 is installed on one side outer wall of both the first joint 101 and the third joint 103. An oil outlet pipe 105c is provided inside the oil tank 105. A reciprocating assembly 2 is provided behind the first joint 101, the first connecting seat 102a, the second connecting seat 102b, and the third joint 103. The reciprocating assembly 2 includes a turntable 201 located behind the first joint 101 and the third joint 103, and a locking block 202 located on the outside of the turntable 201. A protrusion 201b is fixedly connected to the outer wall of the turntable 201.

[0033] Specifically, a drive mechanism 104 is provided in front of the first joint 101 and the first connecting seat 102a, the second connecting seat 102b and the third joint 103. A filler port 105a is provided at the center of the top of the oil tank 105, and a first air inlet pipe 105b is provided above the outer wall of one side of the oil tank 105. The other end of the oil outlet pipe 105c passes through the inner wall of the oil tank 105 and is connected to the nozzle 105d through a pipe joint. The other end of the nozzle 105d is connected to the nozzle 105e through a pipe joint. A rotating shaft 201a is fixedly connected to the center of the front end face of the turntable 201. The other end of the rotating shaft 201a is rotatably connected to the bearing in the rear end face of the adjacent first joint 101 or the rear end face of the adjacent third joint 103. A locking block 202 is locked on the outside of the protrusion 201b. A connecting plate 202a is fixedly connected to the top of the locking block 202. One end of the connecting plate 202a is fixed to the corresponding... On the rear end face of the adjacent first connecting seat 102a or adjacent second connecting seat 102b, a plug rod 201c is fixedly connected to the bottom of the front end face of the turntable 201. A connecting rod 203 is rotatably sleeved on the outer wall of the plug rod 201c. The bottom end of the connecting rod 203 is movably connected to the surface of the piston 203a through a hinge. The piston 203a is located inside the air cylinder 204. The front end face of the air cylinder 204 is installed on the rear end face of the adjacent first joint 101 or the rear end face of the adjacent third joint 103. A second air inlet pipe 204a is provided at the center of the bottom of the air cylinder 204. An air outlet pipe 204b is provided at the bottom of one side of the outer wall of the air cylinder 204. A one-way valve is provided on the second air inlet pipe 204a and the air outlet pipe 204b respectively. The other end of the air outlet pipe 204b is connected to the connecting pipe 204c through a pipe joint. The other end of the connecting pipe 204c is connected to the first air inlet pipe 105b through a pipe joint.

[0034] Furthermore, the first connecting seat 102a and the second connecting seat 102b are located at the first joint 101 and the second joint 102, and the second joint 102 and the third joint 103, respectively, and play the role of rotating and adjusting the angle. The locking block 202 is shaped like a "U" and is locked on the outside of the protrusion 201b, playing the role of limiting and synchronizing movement. The drive mechanism 104 is existing technology, so it will not be described in detail here. The nozzle 105e is located above the joint. The pipe joint plays the role of pipe connection. The insertion rod 201c is located below the turntable 201 and is rotatably inserted into one end of the connecting rod 203. When the turntable 201 rotates, it drives the connecting rod 203 to move up and down reciprocally through eccentric movement, and drives the piston 203a to move in the air cylinder 204 through the hinge, and squeezes the gas in the air cylinder 204. The one-way valve on the second air inlet pipe 204a can only allow air to enter, and the one-way valve on the air outlet pipe 204b can only allow air to exit.

[0035] The operation process of this embodiment is as follows: When the articulated arm of the industrial robot is in use, the drive mechanism 104 can drive the second joint 102 and the third joint 103 to rotate respectively. When the second joint 102 and the third joint 103 rotate, the first connecting seat 102a will rotate, and the second connecting seat 102b will rotate relative to it. This will drive the locking block 202 to move synchronously through the connecting plate 202a. Since the locking block 202 is locked on the outside of the protrusion 201b on the outer wall of the turntable 201, when the locking block 202 moves, it will drive the turntable 201 to rotate with the assistance of the rotating shaft 201a through the protrusion 201b. The insertion rod 201c on the surface of the turntable 201 is rotatably inserted into the connecting rod 203. Therefore, when the turntable 201 rotates, it will drive the connecting rod 203 to move up and down, and push the piston 203a to move up and down in the air cylinder 204 and squeeze its interior. Air is supplied through a cylinder 204 equipped with a second inlet pipe 204a and an outlet pipe 204b. Each inlet pipe 204a and outlet pipe 204b is equipped with a one-way valve. The one-way valve on the inlet pipe 204a allows air to enter, while the one-way valve on the outlet pipe 204b allows air to exit. Therefore, when the piston 203a reciprocates, it forces the gas from the cylinder 204 through the outlet pipe 204b. The gas then passes through the connecting pipe 204c and the first inlet pipe 105b, causing the gas to be forced into the oil tank 105. As the air pressure in the oil tank 105 increases, the lubricating oil inside is sprayed through the filter suction head 3, the oil outlet pipe 105c, the spray pipe 105d, and the spray nozzle 105e to the joints of the industrial robot, providing lubrication to the joints of the robot's articulated arm. This process requires no external power, significantly saving energy and reducing costs.

[0036] Example 2, please refer to Figure 3 and Figure 6 Based on Embodiment 1, the difference from the first embodiment is that a filter suction head 3 is provided, which solves the problem that existing robots with automatic lubrication joints lack filtration measures for lubricating oil during use, so impurities in the lubricating oil may flow into the joints of the industrial robot joint arm and cause wear to the industrial robot joint arm.

[0037] Specifically, a double-headed limiting ring 301 is fixedly connected to the upper part of the outer wall of the filter head 3, a counterweight 302 is sleeved in the middle of the outer wall of the double-headed limiting ring 301, and a filter screen 303 is installed at the bottom of the inside of the filter head 3.

[0038] Furthermore, the double-headed limiting ring 301 plays a limiting role for the counterweight 302, which ensures that the oil suction port is always below the lubricating oil level in the oil tank 105, and the filter screen 303 can filter the lubricating oil.

[0039] The operation process of this embodiment is as follows: After the lubricating oil inside the oil tank 105 is subjected to pressure, the lubricating oil will be forced into the filter suction head 3 under the action of the filter screen 303. The filter screen 303 can filter the lubricating oil to prevent impurities in the lubricating oil from flowing into the joint of the industrial robot arm, causing wear on the joint components of the industrial robot arm, resulting in damage and affecting its use.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An industrial robot articulated arm with automatic lubrication function, comprising an arm base (1) and a first joint (101) mounted at the center of its upper surface, wherein a first connecting seat (102a) is movably connected to the top end of the first joint (101), a second joint (102) is fixedly connected to one side end face of the first connecting seat (102a), a second connecting seat (102b) is fixedly connected to the other end of the second joint (102), and a third joint (103) is movably connected to the other end of the second connecting seat (102b), wherein an oil tank (105) is installed on one side outer wall of both the first joint (101) and the third joint (103), and an oil outlet pipe (105c) is provided inside the oil tank (105), characterized in that: A reciprocating assembly (2) is provided behind the first joint (101) and the first connecting seat (102a), and the second connecting seat (102b) and the third joint (103). A filter suction head (3) is installed at one end of the oil outlet pipe (105c). The reciprocating assembly (2) includes a turntable (201) disposed behind the first joint (101) and the third joint (103), and a locking block (202) disposed on the outside of the turntable (201). A protrusion (201b) is fixedly connected to the outer wall of the turntable (201).

2. The industrial robot articulated arm with automatic lubrication function according to claim 1, characterized in that, A drive mechanism (104) is provided in front of the first joint (101), the first connecting seat (102a), the second connecting seat (102b), and the third joint (103). A filler port (105a) is provided at the top center of the oil tank (105), and a first air inlet pipe (105b) is provided on the upper side of the outer wall of the oil tank (105).

3. An industrial robot articulated arm with automatic lubrication function according to claim 2, characterized in that, The other end of the oil outlet pipe (105c) passes through the inner wall of the oil tank (105) and is connected to the nozzle (105d) through a pipe joint. The other end of the nozzle (105d) is connected to the nozzle (105e) through a pipe joint.

4. An industrial robot articulated arm with automatic lubrication function according to claim 2, characterized in that, A rotating shaft (201a) is fixedly connected to the center of the front end face of the turntable (201). The other end of the rotating shaft (201a) is rotatably connected to a bearing in the rear end face of the adjacent first joint (101) or the rear end face of the adjacent third joint (103). The locking block (202) is locked on the outside of the protrusion (201b).

5. An industrial robot articulated arm with automatic lubrication function according to claim 4, characterized in that, A connecting plate (202a) is fixedly connected to the top of the card block (202). One end of the connecting plate (202a) is fixed to the rear end face of the adjacent first connecting seat (102a) or the adjacent second connecting seat (102b). A plug rod (201c) is fixedly connected to the bottom of the front end face of the turntable (201). A connecting rod (203) is rotatably sleeved on the outer wall of the plug rod (201c).

6. An industrial robot articulated arm with automatic lubrication function according to claim 5, characterized in that, The bottom end of the linkage rod (203) is movably connected to the surface of the piston (203a) via a hinge. The piston (203a) is located inside the air cylinder (204). The front end face of the air cylinder (204) is mounted on the rear end face of the adjacent first joint (101) or the rear end face of the adjacent third joint (103). A second air inlet pipe (204a) is provided at the center of the bottom of the air cylinder (204).

7. An industrial robot articulated arm with automatic lubrication function according to claim 6, characterized in that, An air outlet pipe (204b) is provided at the bottom of one side of the outer wall of the air cylinder (204). A one-way valve is provided on the second air inlet pipe (204a) and the air outlet pipe (204b). The other end of the air outlet pipe (204b) is connected to the connecting pipe (204c) through a pipe joint. The other end of the connecting pipe (204c) is connected to the first air inlet pipe (105b) through a pipe joint.

8. An industrial robot articulated arm with automatic lubrication function according to claim 1, characterized in that, A double-headed limiting ring (301) is fixedly connected to the upper part of the outer wall of the filter suction head (3). A counterweight (302) is sleeved in the middle of the outer wall of the double-headed limiting ring (301). A filter screen (303) is installed at the bottom of the inside of the filter suction head (3).

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