Cutting industrial robot for furniture production

Abstract

The invention provides a cutting industrial robot for furniture production, and relates to the technical field of industrial robots, the cutting industrial robot for furniture production comprises a bottom foot unit, a base unit is arranged on the bottom foot unit, a vertical arm is arranged on the base unit, a horizontal arm is arranged on the vertical arm, and a cutting assembly for furniture wood cutting is arranged on the right side of the horizontal arm. The protection mechanisms are arranged on the rotating shafts among the bottom foot unit, the base unit, the vertical arm, the horizontal arm and the cutting assembly, and the protection mechanisms take the sealed circular box as a core structure to form a semi-sealed wrapping state on the joint part of the mechanical arm. When wood board cutting operation is conducted in the sealed space, the semi-sealed design can effectively prevent chippings such as wood chips generated by cutting from directly falling into joint gaps, damage to the mechanical arm caused by the situations such as foreign matter clamping stagnation and frictional wear is reduced from the physical level, and then the movement flexibility and stability of all joints in the linkage process are guaranteed; the service life of the mechanical arm is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial robots, and more specifically, relates to a cutting industrial robot for furniture production. Background Art

[0002] Industrial robots are multi-jointed manipulators or multi-degree-of-freedom machines widely used in industry. They possess a degree of autonomy and rely on their own power and control capabilities to perform various industrial processing and manufacturing functions. Industrial robots are widely used in various industries, including electronics, logistics, and chemicals, and are currently also being used in furniture production.

[0003] At present, cutting industrial robots have been found to have at least the following technical problems:

[0004] 1. When cutting and producing some wooden furniture, the cutting is often carried out in a sealed processing center to avoid the spread of wood chips. When the industrial robot continuously cuts the wood through the multi-axis linkage driven cutting assembly, the cutting process generates a large amount of wood chips and dust, which will fill the entire space. The joints (rotating axes) of existing cutting robots lack effective protective structures and only rely on simple gap sealing, which causes wood chips to easily fall into the joint gap with airflow or mechanical movement. These wood chips will cause friction and wear when the joints rotate, and even cause gears, bearings and other components to get stuck, which not only reduces the accuracy of the cutting action, but also shortens the service life of the joint components, and increases the frequency and cost of equipment maintenance.

[0005] 2. During furniture cutting operations, the robot's joint motors need to drive multi-axis linkage for a long time to complete complex cutting paths. Continuous operation of the motors generates a large amount of heat. Existing robots' joint heat dissipation mostly relies on a single heat sink or natural air cooling, which has limited heat dissipation efficiency, resulting in low heat dissipation efficiency of the joint motors.

[0006] 3. During the production process, sawdust from cutting can easily accumulate on the surface of heat dissipation components, covering the heat sink or blocking the heat dissipation channels. Under the combined influence of high temperatures and sawdust accumulation, the joint motor is prone to delayed heat dissipation and overheating, resulting in reduced motor stability and even interruption of operation due to overheating protection mechanisms, affecting the continuity and efficiency of furniture production. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a cutting industrial robot for furniture production, so as to solve the problem that the joint parts (rotating axis) of the existing cutting robots lack an effective protective structure and only rely on simple gap sealing, which causes wood chips to easily fall into the joint gap with airflow or mechanical movement. These wood chips will cause friction and wear when the joints rotate, and even cause gears, bearings and other components to get stuck, which not only reduces the accuracy of the cutting action, but also shortens the service life of the joint components and increases the frequency and cost of equipment maintenance.

[0008] A cutting industrial robot for furniture production, comprising a foot unit, a base unit provided on the foot unit, a vertical arm provided on the base unit, a horizontal arm provided on the vertical arm, a cutting assembly for furniture wood cutting provided on the right side of the horizontal arm, wherein a rotating shaft is provided between the foot unit, the base unit, the vertical arm, the horizontal arm and the cutting assembly, each of the rotating shafts is provided with a joint motor, each of the rotating shafts is provided with a protective mechanism, an air intake pipe is provided in the protective mechanism, an air pipe is connected to the air intake pipe, the end of the air pipe is connected to a high-pressure air pump, the protective mechanism is used to dissipate heat from the joint motor in the rotating shaft, and a diversion mechanism is provided in the protective mechanism, which can clean cutting debris.

[0009] Preferably, the protection mechanism comprises a sealed circular box, a heat sink is slidably mounted through the sealed circular box, each heat sink is cross-mounted, and adjacent ends of each heat sink are fitted on the housing of the joint motor.

[0010] Preferably, the diversion mechanism includes a ventilation pipe, which is installed through the sealed circular box, a silicone duckbill valve is fixedly installed inside the ventilation pipe, a U-shaped bracket is fixedly installed on the ventilation pipe, a bearing mounting groove is provided on the U-shaped bracket, and a mounting bearing is rotatably installed in the bearing mounting groove provided on the U-shaped bracket, and a connecting rod is fixedly installed at the lower end of the mounting bearing.

[0011] Preferably, four arc-shaped guide plates are fixedly mounted on the connecting rod, and an arc umbrella cover is fixedly mounted on the connecting rod. The arc umbrella cover is located above the four arc-shaped guide plates. The four arc-shaped guide plates are all located in the ventilation pipe. A protective plate is provided on the sealed circular box, and the protective plate is fixedly mounted on the upper end of the U-shaped bracket in each group of guide mechanisms.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, protective mechanisms are installed on the rotating shafts between the foot unit, base unit, vertical arm, horizontal arm, and cutting assembly. These protective mechanisms, with a sealed circular box as their core structure, create a semi-sealed enclosure around the joints of the robotic arm. When cutting wood within the sealed space, this semi-sealed design effectively prevents wood chips and other debris from falling directly into the joint gaps. This physically reduces damage to the robotic arm caused by foreign matter jamming, friction, and wear. This ensures the flexibility and stability of each joint during the linkage process, extending the robotic arm's service life.

[0014] In the present invention, an air intake duct is connected to a high-pressure air pump via an air pipe, which continuously introduces a strong airflow into the sealed circular box. As the airflow flows through the sealed circular box, even if a small amount of wood chips or other foreign matter accidentally enters the box, it is promptly entrained and expelled by the strong airflow, thereby maintaining a clean environment within the sealed circular box at all times. This prevents the accumulation of foreign matter from adversely affecting the operation of the joint motor and the thermal conductivity of the heat sink, ensuring that the protective mechanism and internal components are always in stable working condition.

[0015] In the present invention, a plurality of cross-arranged heat sinks are slidably installed on a sealed circular box, and the adjacent ends of each heat sink are affixed to the outer shell of the joint motor, so that the heat sink can efficiently absorb the heat generated by the joint motor when it is working. At the same time, the airflow input by the high-pressure air pump flows in the S-shaped channel formed by the intersection of the heat sinks. The airflow can directly take away the heat on the heat sink during the flow process, realizing the synergistic effect of the airflow and the heat sink. This dual heat dissipation method significantly improves the heat dissipation efficiency and can effectively prevent the joint motor from working for a long time due to excessive temperature, which affects its operating performance, and even causes damage due to overheating.

[0016] In the present invention, four 90-degree curved deflectors are installed within the ventilation tube. These deflectors are connected to mounting bearings via connecting rods and can rotate with the airflow. When the airflow is discharged from the sealed circular box through the ventilation tube, it drives the deflectors to rotate, causing the airflow to diffuse in all directions under the action of the deflectors, forming a rotating airflow. This rotating airflow forms an airflow barrier around the sealed circular box and the heat sink, effectively blocking flying sawdust from the cutting process and landing on the surface of the sealed circular box or the heat sink, preventing sawdust from accumulating and covering the heat sink components, and avoiding a decrease in heat dissipation efficiency due to blocked heat dissipation area, thereby ensuring the long-term stable operation of the heat dissipation system.

[0017] In this invention, a silicone duckbill valve is fixedly installed inside the vent tube. Utilizing the flattened one-way valve structure at its upper end, the valve allows gas to be discharged only from within the sealed circular box through the vent tube to the outside world, preventing it from flowing back into the sealed circular box through the vent tube. This one-way flow design blocks the possibility of external gas or debris containing wood chips from entering the sealed circular box through the vent tube, further strengthening the protection of the sealed circular box's internal environment, ensuring that the cleanliness of the box is not affected by external contamination, and providing a more reliable working environment for components such as the joint motor and heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0019] Figure 2 It is a structural schematic diagram of the vertical arm of the present invention;

[0020] Figure 3 It is a schematic structural diagram of the protective plate of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the sealed circular box of the present invention;

[0022] Figure 5 It is a schematic structural diagram of the vent pipe of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the arc-shaped guide plate of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the joint motor of the present invention;

[0025] Figure 8 This invention Figure 3 A magnified schematic diagram of the structure at point A.

[0026] In the figure, the correspondence between the component names and the drawing numbers is: 1. Ventilation pipe; 2. Silicone duckbill valve; 3. Arc guide plate; 4. Arc umbrella cover; 5. U-shaped bracket; 6. Connecting rod; 7. Bearing mounting groove; 8. Mounting bearing; 10. Protective plate; 11. Sealed circular box; 12. Air intake duct; 13. Joint motor; 14. Vertical arm; 15. Heat sink; 16. Horizontal arm; 17. Base unit; 18. Cutting assembly; 19. Base unit. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0028] See also Figure 1 - Figure 8The present invention provides a cutting industrial robot for furniture production, including a foot unit 17, a base unit 19 is provided on the foot unit 17, a vertical arm 14 is provided on the base unit 19, a horizontal arm 16 is provided on the vertical arm 14, and a cutting assembly 18 for furniture wood cutting is provided on the right side of the horizontal arm 16, wherein a rotating shaft is provided between the foot unit 17, the base unit 19, the vertical arm 14, the horizontal arm 16 and the cutting assembly 18, one axis is connected between the foot unit 17 and the base unit 19, two axes are connected between the base unit 19 and the vertical arm 14, three axes are connected between the vertical arm 14 and the horizontal arm 16, and four axes, five axes and six axes are provided between the horizontal arm 16 and the cutting assembly 18. When cutting furniture, multiple axes can be linked through programming, so that the raw materials for producing furniture can be cut through the cutting assembly 18, and when cutting wood, the entire cutting environment is in a relatively sealed processing center.

[0029] Among them, each rotating shaft is provided with a joint motor 13, and each rotating shaft is provided with a protective mechanism. An air intake pipe 12 is provided in the protective mechanism, and an air pipe is connected to the air intake pipe 12. The end of the air pipe is connected to a high-pressure air pump. The high-pressure air pump is placed outside the machining center and is not affected by internal debris. The protective mechanism is used to prevent dust from the rotating shaft. At the same time, the protective mechanism is used to dissipate heat for the joint motor 13 in the rotating shaft. There are multiple diversion mechanisms in the protective mechanism, which can clean the cutting debris.

[0030] like Figure 2 、 Figure 3 、 Figure 4 and Figure 7 As shown, in this embodiment, the protective mechanism includes a sealed circular box 11, and a heat sink 15 is slidably installed on the sealed circular box 11. The number of heat sinks 15 is large, and they are equidistantly arranged around the circumference of the sealed circular box 11. Each heat sink 15 is installed crosswise, and the adjacent ends of each heat sink 15 are attached to the outer shell of the joint motor 13. Since each heat sink 15 is installed crosswise, and the upper and lower ends of the heat sink 15 are respectively attached to the outer shell of the joint motor 13 and the sealed circular box 11, each heat sink 15 separates the sealed space between the sealed circular box 11 and the outer shell of the joint motor 13 to form an S-shaped flow direction. When the external high-pressure air pump ventilates the air intake pipe 12 through the air pipe, the gas will enter between the sealed circular box 11 and the outer shell of the joint motor 13, and flow through the flow direction separated by the heat sink 15. When the gas flows, it can dissipate heat for each heat sink 15. Since the heat sink 15 is made of heat-conducting material, it can absorb the heat generated by the joint motor 13 during operation through the outer shell of the joint motor 13, and then dissipate it.

[0031] like Figure 3 、 Figure 4 、 Figure 5 and Figure 8 As shown, in this embodiment, the diversion mechanism includes a vent pipe 1, which is installed on a sealed circular box 11, and a silicone duckbill valve 2 is fixedly installed inside the vent pipe 1. The upper end of the silicone duckbill valve 2 is flat, and a U-shaped bracket 5 is fixedly installed on the vent pipe 1. A bearing mounting groove 7 is provided on the U-shaped bracket 5. A mounting bearing 8 is rotatably installed in the bearing mounting groove 7 provided on the U-shaped bracket 5. A connecting rod 6 is fixedly installed on the lower end of the mounting bearing 8, and an arc umbrella cover 4 is fixedly installed on the connecting rod 6. Four arc-shaped guide plates 3 are fixedly installed on the connecting rod 6. The arc umbrella cover 4 is located at the bottom of the vent pipe 1. Above the arc guide plate 3, each of the four arc guide plates 3 is bent at ninety degrees, and the four arc guide plates 3 are all located in the ventilation pipe 1. When the airflow flows from the inside of the sealed circular box 11 into the ventilation pipe 1, the gas in the internal space of the sealed circular box 11 can be blown out to the outside world. In the process of blowing, not only can the four arc guide plates 3 be driven to rotate, but also under the action of the ninety-degree bending of the four arc guide plates 3, the airflow can be diffused to the surroundings, thereby avoiding debris falling on the sealed circular box 11 or the heat sink 15 during cutting, affecting heat dissipation.

[0032] A protective plate 10 is provided on the sealed circular box 11. The protective plate 10 is fixedly mounted on the upper end of the U-shaped bracket 5 in each set of guide mechanism. The protective plate 10 can provide preliminary protection for the sealed circular box 11. Its main function is to prevent some mechanisms in the protective mechanism from being collided, such as Figure 1 The protective mechanism shown is installed on the three axes between the vertical arm 14 and the horizontal arm 16. Since the side end of the horizontal arm 16 protrudes, the protective mechanism completely wraps the three axes. The remaining rotating axes can be installed with protective mechanisms of different sizes according to their shapes and positions.

[0033] Working principle:

[0034] In the first step, after the equipment is started, the multi-axis (one to six axes) linkage between the foot unit 17, the base unit 19, the vertical arm 14, the horizontal arm 16 and the cutting assembly 18 is controlled by pre-programming, so that the cutting assembly 18 is accurately moved to the corresponding position of the furniture wood to be cut in the sealed machining center, ready to perform the cutting operation.

[0035] In the second step, during the cutting process, the joint motor 13 in each rotating shaft drives the corresponding shaft to rotate, driving the vertical arm 14, horizontal arm 16 and cutting assembly 18 to complete the preset cutting action, thereby achieving precise cutting of the wood; at the same time, the external high-pressure air pump continuously introduces high-pressure gas into the air intake pipe 12 of the protective mechanism on each rotating shaft through the air pipe.

[0036] In the third step, the high-pressure gas enters the space between the sealed circular box 11 and the outer shell of the joint motor 13. Since the heat sinks 15 on the sealed circular box 11 are cross-installed and fit the outer shell of the joint motor 13, the gas flows along the S-shaped channel formed by the heat sink 15. During the flow process, the heat sink 15 made of heat-conductive material absorbs the heat generated by the joint motor 13, and the airflow takes away the heat on the heat sink 15, thereby achieving efficient heat dissipation of the joint motor 13 and preventing it from being affected by overheating.

[0037] In the fourth step, the gas in the sealed circular box 11 enters the ventilation pipe 1 of the guide mechanism under the push of the airflow. The silicone duckbill valve 2 in the ventilation pipe 1 opens due to the airflow pressure, allowing the gas to be discharged outward; when the gas flows, it drives the four arc-shaped guide plates 3 in the ventilation pipe 1 (rotated by installing bearings 8 and connecting rods 6) to rotate. The 90-degree curved structure of the arc-shaped guide plates 3 diffuses the airflow to the surroundings, forming a rotating airflow.

[0038] In the fifth step, the rotating airflow forms a barrier around the sealed circular box 11 and the heat sink 15, blocking the flying wood chips produced by cutting from falling on the surface of the sealed circular box 11 or the heat sink 15, preventing the accumulation of debris from affecting the heat dissipation efficiency; at the same time, the strong airflow can discharge a small amount of fine debris that accidentally enters the sealed circular box 11 along with the airflow, keeping the box clean.

[0039] In the sixth step, the silicone duckbill valve 2 automatically closes when the airflow stops or the reverse pressure acts, forming a one-way seal to prevent the external gas containing wood chips from flowing back into the sealed circular box 11 from the ventilation pipe 1; in addition, the protective plate 10 on the sealed circular box 11 forms a physical protection for the internal components of the protective mechanism to avoid damage due to collision, thereby ensuring the continuous and stable operation of the equipment.

[0040] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A cutting industrial robot for furniture production, comprising a foot unit (17), characterized in that: The foot unit (17) is provided with a base unit (19), the base unit (19) is provided with a vertical arm (14), the vertical arm (14) is provided with a horizontal arm (16), and a cutting assembly (18) for cutting furniture wood is provided on the right side of the horizontal arm (16), wherein a rotation axis is provided among the foot unit (17), the base unit (19), the vertical arm (14), the horizontal arm (16) and the cutting assembly (18); Each rotating shaft is provided with a joint motor (13), each rotating shaft is provided with a protective mechanism, an air intake pipe (12) is provided in the protective mechanism, an air pipe is connected to the air intake pipe (12), and an end of the air pipe is connected to a high-pressure air pump, the protective mechanism is used to dissipate heat from the joint motor (13) in the rotating shaft, and a flow guide mechanism is provided in the protective mechanism, and the flow guide mechanism is used to clean cutting debris.

2. A cutting industrial robot for furniture production as claimed in claim 1, characterized in that: The protective mechanism comprises a sealed circular box (11), and a heat sink (15) is slidably mounted through the sealed circular box (11).

3. A cutting industrial robot for furniture production as claimed in claim 2, characterized in that: Each of the heat sinks (15) is installed crosswise.

4. A cutting industrial robot for furniture production as claimed in claim 3, characterized in that: The adjacent ends of each heat sink (15) are fitted on the outer shell of the joint motor (13).

5. A cutting industrial robot for furniture production as claimed in claim 4, characterized in that: The flow guiding mechanism comprises a vent pipe (1), and the vent pipe (1) is installed through the sealed circular box (11).

6. A cutting industrial robot for furniture production as claimed in claim 5, characterized in that: A silicone duckbill valve (2) is fixedly installed inside the ventilation pipe (1), and a U-shaped bracket (5) is fixedly installed on the ventilation pipe (1).

7. A cutting industrial robot for furniture production as claimed in claim 6, characterized in that: A bearing mounting groove (7) is provided on the U-shaped bracket (5), and a mounting bearing (8) is rotatably mounted in the bearing mounting groove (7) provided on the U-shaped bracket (5).

8. A cutting industrial robot for furniture production as claimed in claim 7, characterized in that: A connecting rod (6) is fixedly mounted on the lower end of the mounting bearing (8), and four arc-shaped guide plates (3) are fixedly mounted on the connecting rod (6).

9. A cutting industrial robot for furniture production as claimed in claim 8, characterized in that: A circular arc umbrella cover (4) is fixedly mounted on the connecting rod (6), and the circular arc umbrella cover (4) is located above four arc-shaped guide plates (3), and the four arc-shaped guide plates (3) are all located in the ventilation pipe (1).

10. The cutting industrial robot for furniture production according to claim 9, characterized in that: The sealed circular box (11) is provided with a protective plate (10), and the protective plate (10) is fixedly mounted on the upper end of the U-shaped bracket (5) in each group of the guide mechanism.

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