Anti-collision intelligent safety protection device for mechanical arm

Abstract

The invention relates to the technical field of mechanical arm protection equipment, in particular to a mechanical arm anti-collision intelligent safety protection device which comprises a base, a guide block is arranged on the inner side wall of the base, the inner wall of the base is fixedly connected with the bottom of a protection cover, and due to the fact that a sliding block is limited by a sliding groove, an adjusting tooth block transversely slides in the sliding groove; when a rotating plate moves out of the bottom of a limiting block, the rotating plate deflects with a fixed block as the axis under the reset acting force of a torsional spring, the rotating plate drives an abutting block to be separated from the top of a trigger block, and the abutting block is driven to abut against the trigger block under the telescopic acting force of a reset spring. The reset spring drives the connecting plate to slide in the protection bin, the connecting plate pushes the protection rod out of the protection bin, and when the mechanical arm collides with personnel or other obstacles, the buffer ball of the protection rod collides with the personnel or other obstacles in sequence, so that the mechanical arm is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical arm protection equipment, in particular to a mechanical arm anti-collision intelligent safety protection device. BACKGROUND

[0002] The mechanical arm, also known as automatic arm, mechanical hand, etc., is an automatic operation device that can imitate some action functions of human hands and arms to grab, carry objects or operate tools according to fixed programs. It can replace human labor to realize the mechanization and automation of production, and can operate in harmful environments to protect personal safety, and is widely used in automatic control fields such as mechanical manufacturing, metallurgy, surgical treatment, etc.

[0003] However, in actual application, sometimes due to the operator not paying attention to the movement of the mechanical arm or the mechanical arm being misoperated, etc., the mechanical arm collides with personnel or other obstacles, etc., which may on the one hand cause harm to personnel, and on the other hand may cause damage to the mechanical arm or the obstacle. Therefore, in order to make the automatic control equipment safer and reduce the possibility of damage to the mechanical arm itself, the mechanical arm of the automatic control equipment needs to be designed for anti-collision. SUMMARY

[0004] The purpose of the present application is to provide a mechanical arm anti-collision intelligent safety protection device to solve the problem of collision between the mechanical arm and personnel or other obstacles, etc. during use as described in the background. To achieve the above purpose, the present application provides the following technical scheme: a mechanical arm anti-collision intelligent safety protection device, comprising a base, a guide block is arranged on the inner side wall of the base, the inner wall of the base is fixedly connected with the bottom of a protection cover, the outer wall of the protection cover is fixedly connected with one side of a limiting block, a working cavity is formed in the inside of the base, the inner wall of the working cavity is engagedly connected with the outer wall of a driving assembly, the top of the driving assembly is fixedly connected with the bottom end of a reduction gear box, the top end of the reduction gear box is fixedly connected with the bottom of a rotating table, the top of the rotating table is fixedly connected with the bottom of a mechanical arm body, the outer wall of the driving assembly is meshingly connected with the outer wall of an adjusting assembly, and the outer wall of the adjusting assembly is fixedly connected with a protection assembly.

[0005] Preferably, the top of the base and the inner top wall of the protection cover are both provided with sliding grooves, and the inner wall of the sliding grooves is slidingly connected with the outer wall of the adjusting assembly.

[0006] Preferably, the inner bottom wall of the working cavity is provided with a heat dissipation hole, and the bottom of the heat dissipation hole is movably abutted with the top of the driving assembly. The airflow at the bottom of the base flows quickly, thereby cooling the driving motor through the heat dissipation hole.

[0007] Preferably, the driving assembly comprises a driving motor, a driving gear and a cleaning block, the driving motor is a double-output shaft motor, the driving motor is in engagement connection with the outer wall of the top output shaft and the inner wall of the driving gear, the outer wall of the driving gear is in engagement connection with the outer wall of the adjusting assembly, and the driving motor is in engagement connection with the outer wall of the bottom output shaft and the inner wall of the cleaning block, the top of the cleaning block is in movable abutment with the bottom of the heat dissipation hole, the driving motor is started, and the driving motor drives the driving gear and the cleaning block to rotate coaxially.

[0008] Preferably, the adjusting assembly comprises an adjusting tooth block, a sliding block and a connecting block, the outer wall of one side of the adjusting tooth block is in engagement connection with the outer wall of the driving gear, and the other side of the adjusting tooth block is in fixed connection with one side of the sliding block, the outer wall of the sliding block is in sliding connection with the inner wall of the sliding groove, and the other side of the sliding block is in fixed connection with one side of the connecting block, the front face and the back face of the connecting block are both provided with a protection assembly, since the sliding block is limited by the sliding groove, the adjusting tooth block slides transversely in the sliding groove, the adjusting tooth block drives the connecting block to slide when sliding, and the connecting block drives the protection bin to slide at the bottom of the protection cover.

[0009] Preferably, the protection assembly comprises a protection bin, a fixed block, a rotating plate, an abutment block, a return spring, a trigger block, a connecting plate and a protection rod, the top of the protection bin is in fixed connection with the bottom of the fixed block, and the inner wall of the fixed block is in rotating connection with the rotating plate through a torsional spring, the bottom of the rotating plate is fixedly connected with the abutment block, and the inner wall of the protection bin is provided with a return cavity, the inner wall of the return cavity is in fixed connection with one end of the return spring, and the other end of the return spring is in fixed connection with one side of the connecting plate, the top of the connecting plate is in fixed connection with the bottom of the trigger block, and the other side of the connecting plate is in fixed connection with one end of the protection rod, when the rotating plate moves out from the bottom of the limiting block, the rotating plate is deflected with the fixed block as the axis under the return force of the torsional spring, the rotating plate drives the abutment block to separate from the top of the trigger block, and the return spring drives the connecting plate to slide in the protection bin under the extension and contraction force of the return spring, the connecting plate pushes the protection rod out of the protection bin, when the mechanical arm collides with personnel or other obstacles, etc., the buffer ball of the protection rod will collide with them first, so as to avoid damage to the mechanical arm.

[0010] Preferably, the shape and size of the abutment block and the trigger block are the same, and the abutment block and the trigger block are both wedge-shaped blocks, and the abutment block can drive the trigger block to slide after the abutment block and the trigger block abut due to the design of the wedge-shaped block.

[0011] Preferably, the top of the protection bin is provided with a trigger groove in communication with the return cavity, and the inner wall of the trigger groove is in sliding connection with the outer wall of the trigger block, and since the trigger groove limits the trigger block, the trigger block can only slide transversely along the trigger groove.

[0012] Preferably, the bumper rod is provided with a buffer ball at one end outside the protection bin, and the buffer ball is made of rubber, which can reduce the rigid force between structures.

[0013] Compared with the prior art, the present application has the following advantages: In the present application, the driving gear drives the adjusting tooth block to move under the meshing force, the adjusting tooth block slides transversely in the sliding groove because the sliding block is limited by the sliding groove, the adjusting tooth block drives the connecting block to slide when sliding, the connecting block drives the protection bin to slide at the bottom of the protection cover, the rotating plate is deflected around the fixed block under the restoring force of the torsional spring when the rotating plate moves out from the bottom of the limiting block, the rotating plate drives the abutting block to separate from the top of the trigger block, the connecting plate slides in the protection bin under the extension and contraction force of the reset spring, and the connecting plate pushes the bumper rod out of the protection bin.

[0014] In the present application, when the driving gear reversely rotates, the adjusting tooth block drives the connecting block to reversely move through the sliding block, at this time, the rotating plate abuts against the bottom of the limiting block, thereby extruding the torsional spring, making the rotating plate abut against the bottom of the trigger block with the abutting block, the abutting block drives the trigger block to slide in the trigger groove, the trigger block drives the connecting plate to slide in the protection bin and extrudes the reset spring when sliding, thereby making the bumper rod be stored in the protection bin, which can improve the space utilization rate and bring convenience to people while avoiding damage to the bumper rod.

[0015] In the present application, the airflow at the bottom of the base is stirred to flow rapidly when the cleaning block rotates, thereby cooling the driving motor through the heat dissipation hole, and the cleaning block abuts against the bottom of the heat dissipation hole, which can strip off the dust attached to the heat dissipation hole, and the cleaning block moves out of the range of the base under the guidance of the guide block, thereby prolonging the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a sectional view of the present application; Figure 3 It is a schematic diagram of part of the structure of the present application; Figure 4 It is a schematic diagram of the mechanical arm body structure of the present application; Figure 5 It is a schematic diagram of the driving assembly structure of the present application; Figure 6 It is a schematic diagram of the adjusting assembly structure of the present application; Figure 7 It is a schematic diagram of the protection assembly structure of the present application.

[0017] In the figure: 1, base; 2, guide block; 3, protective cover; 4, limiting block; 5, driving assembly; 501, driving motor; 502, driving gear; 503, cleaning block; 6, speed reducer gear box; 7, rotating table; 8, mechanical arm body; 9, adjusting assembly; 901, adjusting tooth block; 902, sliding block; 903, connecting block; 10, protection assembly; 1001, protection bin; 1002, fixed block; 1003, rotating plate; 1004, abutting block; 1005, reset spring; 1006, trigger block; 1007, connecting plate; 1008, protection rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figures 1 to 7 , the present application provides a kind of technical scheme: a kind of mechanical arm anti-collision intelligent safety protection device, including base 1, the inner wall of base 1 is provided with guide block 2, the inner wall of base 1 is fixedly connected with the bottom of protective cover 3, the outer wall of protective cover 3 is fixedly connected with one side of limiting block 4, the inside of base 1 is opened with working cavity, and the inner wall of working cavity is engagedly connected with the outer wall of driving assembly 5, the top of driving assembly 5 is fixedly connected with the bottom of speed reducer gear box 6, the top of speed reducer gear box 6 is fixedly connected with the bottom of rotating table 7, the top of rotating table 7 is fixedly connected with the bottom of mechanical arm body 8, the outer wall of driving assembly 5 is engagedly connected with the outer wall of adjusting assembly 9, and the outer wall of adjusting assembly 9 is fixedly connected with protection assembly 10.

[0020] In the embodiment, as shown in Figures 1 to 7 The top of base 1 and the inner top wall of protective cover 3 are both provided with sliding grooves, and the inner wall of the sliding grooves is slidingly connected with the outer wall of adjusting assembly 9.

[0021] In the embodiment, as shown in Figures 1 to 7 The inner bottom wall of working cavity is provided with a heat dissipation hole, and the bottom of the heat dissipation hole is movably abutted with the top of driving assembly 5. The airflow at the bottom of base 1 flows rapidly, thereby cooling the driving motor 501 through the heat dissipation hole.

[0022] In the embodiment, as shown in Figures 1 to 7As shown, the driving assembly 5 comprises a driving motor 501, a driving gear 502 and a cleaning block 503, the driving motor 501 is a double-output-shaft motor, the outer wall of the top output shaft of the driving motor 501 is in clamping connection with the inner wall of the driving gear 502, the outer wall of the driving gear 502 is in meshing connection with the outer wall of the adjusting assembly 9, the outer wall of the bottom output shaft of the driving motor 501 is in clamping connection with the inner wall of the cleaning block 503, the top of the cleaning block 503 is in movable abutment with the bottom of the heat dissipation hole, the driving motor 501 is started, and the driving motor 501 drives the driving gear 502 and the cleaning block 503 to rotate coaxially.

[0023] In the embodiment, as shown in Figures 1 to 7 As shown, the adjusting assembly 9 comprises an adjusting tooth block 901, a sliding block 902 and a connecting block 903, one side of the outer wall of the adjusting tooth block 901 is in meshing connection with the outer wall of the driving gear 502, the other side of the adjusting tooth block 901 is in fixed connection with one side of the sliding block 902, the outer wall of the sliding block 902 is in sliding connection with the inner wall of the sliding groove, the other side of the sliding block 902 is in fixed connection with one side of the connecting block 903, and the front face and the back face of the connecting block 903 are both provided with the protection assembly 10, since the sliding block 902 is limited by the sliding groove, the adjusting tooth block 901 slides transversely in the sliding groove, the adjusting tooth block 901 drives the connecting block 903 to slide when sliding, and the connecting block 903 drives the protection bin 1001 to slide at the bottom of the protection cover 3.

[0024] In the embodiment, as shown in Figures 1 to 7As shown, the protection assembly 10 includes a protection bin 1001, a fixed block 1002, a rotating plate 1003, an abutment block 1004, a reset spring 1005, a trigger block 1006, a connecting plate 1007 and a protection rod 1008, the top of the protection bin 1001 is fixedly connected with the bottom of the fixed block 1002, and the inner wall of the fixed block 1002 is rotationally connected with the rotating plate 1003 through a torsion spring, the bottom of the rotating plate 1003 is fixedly connected with the abutment block 1004, and the inner wall of the protection bin 1001 is provided with a reset cavity, the inner wall of the reset cavity is fixedly connected with one end of the reset spring 1005, and the other end of the reset spring 1005 is fixedly connected with one side of the connecting plate 1007, the top of the connecting plate 1007 is fixedly connected with the bottom of the trigger block 1006, and the other side of the connecting plate 1007 is fixedly connected with one end of the protection rod 1008, when the rotating plate 1003 moves out from the bottom of the limiting block 4, the rotating plate 1003 is deflected with the fixed block 1002 as the axis under the reset force of the torsion spring, the rotating plate 1003 drives the abutment block 1004 to separate from the top of the trigger block 1006, and under the extension and contraction force of the reset spring 1005, the reset spring 1005 drives the connecting plate 1007 to slide in the protection bin 1001, and the connecting plate 1007 pushes the protection rod 1008 out of the protection bin 1001, when the mechanical arm collides with personnel or other obstacles, the buffer ball of the protection rod 1008 collides with the mechanical arm first, so that the mechanical arm is prevented from being damaged.

[0025] In the embodiment, as shown in the figure, Figures 1 to 7 The abutment block 1004 and the trigger block 1006 are the same in shape and size, and are both wedge-shaped blocks.

[0026] In the embodiment, as shown in the figure, Figures 1 to 7 The top of the protection bin 1001 is provided with a trigger groove in communication with the reset cavity, and the inner wall of the trigger groove is slidably connected with the outer wall of the trigger block 1006.

[0027] In the embodiment, as shown in the figure, Figures 1 to 7 The end of the protection rod 1008 located outside the protection bin 1001 is provided with a buffer ball made of rubber.

[0028] The use method and advantages of the present application are as follows: As shown in the figure, Figures 1 to 7 Start the driving motor 501, and the driving motor 501 drives the driving gear 502 and the cleaning block 503 to rotate coaxially. The driving gear 502 drives the adjusting tooth block 901 to move under the meshing force, and the adjusting tooth block 901 slides transversely in the sliding groove, because the sliding block 902 is limited by the sliding groove, the adjusting tooth block 901 drives the connecting block 903 to slide, the connecting block 903 drives the protection bin 1001 to slide at the bottom of the protection cover 3, when the rotating plate 1003 moves out from the bottom of the limiting block 4, the rotating plate 1003 is deflected with the fixed block 1002 as the axis under the reset action force of the torsional spring, the rotating plate 1003 drives the abutting block 1004 to separate from the top of the trigger block 1006, the reset spring 1005 drives the connecting plate 1007 to slide in the protection bin 1001 under the extension and contraction action force of the reset spring 1005, the connecting plate 1007 pushes the protection rod 1008 out of the protection bin 1001, when the mechanical arm collides with personnel or other obstacles, the buffer ball of the protection rod 1008 collides with the obstacles first, so that the mechanical arm is prevented from being damaged; When the driving gear 502 reversely rotates, the adjusting tooth block 901 drives the connecting block 903 to reversely move through the sliding block 902, at this time, the rotating plate 1003 abuts against the bottom of the limiting block 4, so that the torsional spring is extruded, the rotating plate 1003 drives the abutting block 1004 to abut against the bottom of the trigger block 1006, the abutting block 1004 drives the trigger block 1006 to slide in the trigger groove, the trigger block 1006 drives the connecting plate 1007 to slide in the protection bin 1001 and extrudes the reset spring 1005 when sliding, so that the protection rod 1008 is stored in the protection bin 1001. The cleaning block 503 stirs the airflow at the bottom of the base 1 to flow rapidly when rotating, so that the driving motor 501 is cooled through the heat dissipation hole, meanwhile, the cleaning block 503 abuts against the bottom of the heat dissipation hole, and the cleaning block 503 can peel off the dust attached on the heat dissipation hole, and is guided out of the range of the base 1 under the guidance of the guide block 2.

[0029] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by the technical personnel in the industry that the present application is not limited by the above examples, the above examples and the description in the specification are only preferred examples of the present application, and are not used to limit the present application, various changes and improvements of the present application fall within the scope of the present application without departing from the spirit and scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A mechanical arm anti-collision intelligent safety protection device, comprising a base (1), characterized in that: The inner wall of the base (1) is provided with a guide block (2), the bottom of the protective cover (3) is fixedly connected with the inner wall of the base (1), one side of the outer wall of the protective cover (3) is fixedly connected with the limiting block (4), the inner wall of the working cavity is clampedly connected with the outer wall of the driving assembly (5), the top of the driving assembly (5) is fixedly connected with the bottom of the speed reducer (6), the top of the speed reducer (6) is fixedly connected with the bottom of the rotating table (7), the top of the rotating table (7) is fixedly connected with the bottom of the mechanical arm body (8), the outer wall of the driving assembly (5) is engagedly connected with the outer wall of the adjusting assembly (9), and the outer wall of the adjusting assembly (9) is fixedly connected with the protective assembly (10).

2. The intelligent safety guard for collision avoidance of a robotic arm of claim 1, wherein: The top of the base (1) and the inner top wall of the protective cover (3) are provided with sliding grooves, and the inner wall of the sliding groove is slidably connected with the outer wall of the adjusting assembly (9).

3. The intelligent safety guard for collision avoidance of a robotic arm of claim 1, wherein: The inner bottom wall of the working cavity is provided with a heat dissipation hole, and the bottom of the heat dissipation hole is movably abutted with the top of the driving assembly (5).

4. The intelligent safety guard of claim 3, wherein: The driving assembly (5) comprises a driving motor (501), a driving gear (502) and a cleaning block (503), the driving motor (501) is a double-output shaft motor, the outer wall of the top output shaft of the driving motor (501) is clampedly connected with the inner wall of the driving gear (502), the outer wall of the driving gear (502) is engagedly connected with the outer wall of the adjusting assembly (9), the outer wall of the bottom output shaft of the driving motor (501) is clampedly connected with the inner wall of the cleaning block (503), and the top of the cleaning block (503) is movably abutted with the bottom of the heat dissipation hole.

5. The intelligent safety shield for collision avoidance of a robotic arm of claim 4, wherein: The adjusting assembly (9) comprises an adjusting tooth block (901), a sliding block (902) and a connecting block (903), the outer wall of one side of the adjusting tooth block (901) is engagedly connected with the outer wall of the driving gear (502), the other side of the adjusting tooth block (901) is fixedly connected with one side of the sliding block (902), the outer wall of the sliding block (902) is slidably connected with the inner wall of the sliding groove, the other side of the sliding block (902) is fixedly connected with one side of the connecting block (903), and the front face and the back face of the connecting block (903) are provided with the protective assembly (10).

6. The intelligent safety guard for collision avoidance of a robotic arm of claim 5, wherein: The protection assembly (10) comprises a protection bin (1001), a fixed block (1002), a rotating plate (1003), an abutting block (1004), a reset spring (1005), a trigger block (1006), a connecting plate (1007) and a protection rod (1008), the top of the protection bin (1001) is fixedly connected with the bottom of the fixed block (1002), the inner wall of the fixed block (1002) is rotationally connected with the rotating plate (1003) through a torsional spring, the bottom of the rotating plate (1003) is fixedly connected with the abutting block (1004), a reset cavity is formed in the inner wall of the protection bin (1001), the inner wall of the reset cavity is fixedly connected with one end of the reset spring (1005), the other end of the reset spring (1005) is fixedly connected with one side of the connecting plate (1007), the top of the connecting plate (1007) is fixedly connected with the bottom of the trigger block (1006), and the other side of the connecting plate (1007) is fixedly connected with one end of the protection rod (1008).

7. The intelligent safety guard for collision avoidance of a robotic arm of claim 6, wherein: The abutting block (1004) and the trigger block (1006) are the same in shape and size, and both are wedge-shaped blocks.

8. The intelligent safety guard for collision avoidance of a robotic arm of claim 6, wherein: A trigger groove in communication with the reset cavity is formed in the top of the protection bin (1001), and the inner wall of the trigger groove is slidably connected with the outer wall of the trigger block (1006).

9. The intelligent safety shield for robotic arms of claim 6, wherein: The end of the protection rod (1008) located outside the protection bin (1001) is provided with a buffer ball, and the buffer ball is made of rubber.

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