A suction cup type zinc block processing automatic loading and unloading rotating mechanical arm

Abstract

The invention discloses an automatic loading and unloading rotating mechanical arm for processing a suction cup type zinc block, comprising a top plate, a motor fixedly connected to the bottom of the top plate, an electric mechanical arm fixedly connected to the bottom of the motor, a connecting block fixedly connected to the bottom of the electric mechanical arm, and an adsorption mechanism arranged below the connecting block, relating to the technical field of mechanical arms. By arranging the adsorption mechanism, when the suction cup rotates, dust adhered to the inner wall of the suction cup when the suction cup is working and surrounding particles are centrifuged by rotation, and residual dust is thrown out as much as possible to keep the inner wall of the suction cup clean, so that after the threaded rod B and the threaded rod A are completely retracted into the internal threaded sleeve, when the suction cup negatively pressures the zinc block, the smoothness of the contact surface and the stability of the adsorption are guaranteed, so as to avoid the problem of air leakage and looseness caused by the presence of particles and dust during movement after the zinc block is adsorbed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical arms, in particular to an automatic loading and unloading rotating mechanical arm for processing a suction cup zinc block. Background Art

[0002] Industrial manipulators are a new technology that has emerged in the field of modern automatic control and have become an important part of modern mechanical manufacturing production systems. However, in the current sheet metal processing industry, most of the processing processes use manual loading and unloading. Manual loading and unloading has low efficiency, low precision, and high risk, and most industrial manipulators can only be used for one product specification, with a fixed height and difficult to adjust. In addition, the structure is complex, the cost is high, and the vibration and error generated are large, which cannot meet market demand. Therefore, it is particularly important to design a manipulator that is economical, practical, structurally optimized, and has high precision;

[0003] A special fixture for processing a solenoid valve body described in a patent application with reference publication number CN106808470B is specifically a suction cup type automatic loading and unloading rotary manipulator, comprising a suction cup type mechanical arm mechanism installed in a horizontal direction, a lifting mechanism for driving the manipulator to lift, a lifting motion buffer mechanism, and a rotating mechanism assembled in the lifting mechanism;

[0004] During the cutting, manufacturing, processing and transportation of zinc blocks in the workshop, the flying debris caused by the cutting process and the debris exposed in the air in the workshop will be sputtered and adsorbed on the surface of the zinc block, and in the transportation process after processing, friction and collision may occur between the zinc blocks or with other objects, which will in turn cause surface wear and produce particulate residue. Therefore, when the zinc block is adsorbed and unloaded by the suction cup, it is easy to cause negative pressure adsorption of the zinc block due to the residue on the surface of the zinc block or the surface of the suction cup, resulting in air leakage, which leads to falling off and loosening during the loading and unloading process. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a suction cup type zinc block processing automatic loading and unloading rotating mechanical arm, which achieves the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a suction cup type automatic loading and unloading rotating mechanical arm for zinc block processing, comprising a top plate, a motor is fixedly connected to the bottom of the top plate, an electric mechanical arm is fixedly connected to the bottom of the motor, a connecting block is fixedly connected to the bottom of the electric mechanical arm, and an adsorption mechanism is arranged below the connecting block;

[0007] The adsorption mechanism comprises:

[0008] An internal thread sleeve, the internal thread sleeve is a circular columnar structure, one end of the internal thread sleeve is rotatably connected to the bottom of the connecting block, the outer wall of the internal thread sleeve is fixedly connected to a fan, one end of the fan is fixedly connected to an air pipe, and the internal thread sleeve is used to connect the connecting block;

[0009] The suction cup is made of elastic rubber material, the inner wall of the suction cup is fixedly connected to the outer wall of the internal threaded sleeve, the outer wall of the suction cup is fixedly connected to one end of the air pipe, and the suction cup is used to suck up the zinc block with negative pressure.

[0010] Preferably, the inner wall of the internal threaded sleeve is threadedly connected to a threaded rod A, the inner wall of the threaded rod A is threadedly connected to a threaded rod B, the end of the threaded rod A away from the threaded rod B is fixedly connected to the inner wall of the internal threaded sleeve by a spring, and the end of the threaded rod B close to the threaded rod A is fixedly connected to the inner wall of the threaded rod A by a spring.

[0011] Preferably, an air groove B is provided on the outer wall of the internal threaded sleeve, a one-way valve A is fixedly connected to the inner wall of the air groove B, and the air inlet end of the one-way valve A is communicated with the inner wall of the internal threaded sleeve. An air groove A is provided on the outer wall of the internal threaded sleeve, a one-way valve B is fixedly connected to the inner wall of the air groove A, and the air inlet end of the one-way valve B is communicated with the outside of the internal threaded sleeve.

[0012] Preferably, the outer wall of the internal threaded sleeve is provided with an anti-falling mechanism, and the anti-falling mechanism includes a hinge block, the outer wall of the hinge block is fixedly connected to the outer wall of the internal threaded sleeve, the inner wall of the hinge block is hinged with a hinge rod A, one end of the hinge rod A is fixedly connected to a rotating shaft A, one end of the rotating shaft A is fixedly connected to a fixed plate A, the outer wall of the fixed plate A is fixedly connected to a torsion spring A, the outer wall of the torsion spring A is fixedly connected to a hinge rod B, one end of the hinge rod B is rotatably connected to the outer wall of the rotating shaft A, the outer wall of the hinge rod A is fixedly connected to a long spring, one end of the long spring is fixedly connected to the outer wall, so as to be connected to each other.

[0013] Preferably, one end of the hinged rod B is rotatably connected to a rotating shaft B, an outer wall of the hinged rod B is fixedly connected to a torsion spring B, one end of the torsion spring B is fixedly connected to a fixed plate B, an outer wall of the fixed plate B is fixedly connected to one end of an outer wall of the rotating shaft B, and one end of the rotating shaft B is fixedly connected to a hinged rod C.

[0014] Preferably, a scraper is fixedly connected to the bottom of the hinged rod C, and a sliding groove is provided on the inner wall of the scraper to support the scraper strip.

[0015] Preferably, the inner wall of the slide groove is slidably connected with a scraper strip, and the outer wall of the scraper strip is in contact with the outer wall of the scraper plate.

[0016] Preferably, the thread lead angle of the outer wall threads of the threaded rod B and the threaded rod A is greater than fifty-five degrees, and the inner wall of the air pipe is connected to the inner wall of the suction cup, so that the air is connected.

[0017] The present invention provides a suction cup type zinc block processing automatic loading and unloading rotating mechanical arm, which has the following beneficial effects:

[0018] 1. The present invention sets an adsorption mechanism, and when the thread starts to slide and retract, it will rotate together, so that the internal thread sleeve will start to rotate and control the suction cup to rotate synchronously. When the suction cup rotates, the dust adhered to the inner wall of the suction cup when the suction cup is working and the surrounding particles will be centrifuged to throw out the residual dust as much as possible, so as to keep the inner wall of the suction cup clean. Therefore, after the threaded rod B and the threaded rod A are completely retracted into the internal thread sleeve, when the suction cup negatively adsorbs the zinc block, the smoothness of the contact surface and the stability of the adsorption are guaranteed, so as to avoid the problem of air leakage and looseness caused by the presence of particles and dust during the movement after the zinc block is adsorbed.

[0019] 2. The present invention provides an adsorption mechanism. When the suction cup descends and the threaded rod A is retracted into the internal threaded sleeve, the air on the inner wall of the internal threaded sleeve will be squeezed, and the air in the sealed space on the inner wall of the internal threaded sleeve will be squeezed and sprayed out from the air groove B at the bottom of the internal threaded sleeve. Because the spray hole of the air groove B is small and the pressure is increased, the position where the zinc block is about to be pressed by the suction cup can be effectively blown with high pressure, and the residue, debris and dust on the surface of the zinc block can be blown away to a certain extent, so as to keep the suction cup and the zinc block clean as much as possible, and reduce the leakage of negative pressure adsorption.

[0020] 3. The present invention provides an adsorption mechanism. After the suction cup negatively adsorbs the zinc block, when the suction cup is moved for transfer and loading, once the suction cup leaks and loosens when adsorbing the zinc block, air intake between the suction cup and the zinc block will cause the suction cup to start to become higher from a flat shape. Once the distance between the center of the suction cup and the zinc block increases, the threaded rod B will be affected by the elastic force of the spring on the inner wall of the threaded rod A, and the threaded rod B will be ejected. Once the threaded rod B is ejected, air will be taken in through the air groove A on the outer wall of the internal threaded sleeve, and a whistle will be emitted, thereby realizing an automatic sound alarm for surrounding staff. The staff can judge the adsorption and looseness status between the suction cup and the zinc block by the whistle and the duration of the whistle, and give early warning, which can reduce the occurrence of accidents to a certain extent.

[0021] 4. The present invention is provided with an anti-falling mechanism. As the internal threaded sleeve continues to descend, the articulated rod A and the articulated rod B will begin to slide outward in the articulated state, and the angle between the articulated rod C and the articulated rod B will begin to decrease, ensuring that when the suction cup is completely in contact with the zinc block, the articulated block will be completely pushed out from under the suction cup to the outside, which will not affect the suction cup's adsorption of the zinc block, and as the internal threaded sleeve rotates, the articulated block and the articulated rod B and the articulated rod C on the outer wall will be driven to rotate. The articulated rod C is attached to the zinc block through the scraper and rotates to scrape away all the remaining dust and particulate residue on the smooth surface of the zinc block, and is thrown out by the centrifugal force of the rotation, and is further blown away in real time with the jet of the air slot B, so that the residue with strong adhesion on the surface of the zinc block can also be removed, thereby improving the stability of the negative pressure adsorption of the suction cup.

[0022] 5. The present invention is provided with an anti-falling mechanism. When the hinged rod C and the scraper rotate, the scraper strip in the chute provided on the inner wall of the scraper is thrown outward by centrifugal force. Because the scraper strip was originally on the side of the inner wall of the chute away from the hinged rod B, the rotation will now throw it outward along the centrifugal direction, so that the scraper strip slides along the inner wall of the chute against the outer wall of the scraper to scrape the scraper, thereby completing the self-cleaning of the scraper itself. Keeping the scraper clean also effectively ensures the effect of cleaning the zinc block. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 The structure of the adsorption mechanism of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0026] Figure 4 The structure of the adsorption mechanism of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 5 For the present invention Figure 3 A magnified view of point B;

[0028] Figure 6 The motion state of the adsorption mechanism of the present invention is Figure 1 ;

[0029] Figure 7 The motion state of the adsorption mechanism of the present invention is Figure 2 ;

[0030] Figure 8 It is a schematic diagram of the disassembled structure of the anti-falling mechanism of the present invention;

[0031] Fig. 9It is a structural schematic diagram of the anti-falling mechanism of the present invention;

[0032] Fig.10 For the present invention Figure 2 Enlarged view of point C;

[0033] Fig.11 For the present invention Figure 2 The enlarged view of point D;

[0034] Fig.12 It is a structural schematic diagram of the anti-falling mechanism of the present invention;

[0035] Fig.13 It is a motion state diagram of the anti-falling mechanism of the present invention.

[0036] In the figure: 1 top plate, 2 connecting block, 3 adsorption mechanism, 301 internal threaded sleeve, 302 fan, 303 air pipe, 304 suction cup, 305 threaded rod A, 306 threaded rod B, 307 air groove A, 308 air groove B, 4 anti-falling mechanism, 401 hinge block, 402 hinged rod A, 403 rotating shaft A, 404 fixed plate A, 405 torsion spring A, 406 hinged rod B, 407 rotating shaft B, 408 fixed plate B, 409 torsion spring B, 410 hinged rod C, 412 scraper, 413 slide groove, 414 scraper strip, 415 long spring, 5 motor, 6 electric mechanical arm. DETAILED DESCRIPTION Embodiment 1:

[0037] See also Figure 1-7 The present invention provides a technical solution: a suction cup type automatic loading and unloading rotary robot arm for zinc block processing, comprising a top plate 1, a motor 5 is fixedly connected to the bottom of the top plate 1, an electric robot arm 6 is fixedly connected to the bottom of the motor 5, a connecting block 2 is fixedly connected to the bottom of the electric robot arm 6, and an adsorption mechanism 3 is arranged below the connecting block 2;

[0038] The adsorption mechanism 3 comprises:

[0039] Internal thread sleeve 301, the internal thread sleeve 301 is a circular columnar structure, one end of the internal thread sleeve 301 is rotatably connected to the bottom of the connecting block 2, the outer wall of the internal thread sleeve 301 is fixedly connected to the fan 302, one end of the fan 302 is fixedly connected to the air pipe 303, and the internal thread sleeve 301 is used to connect the connecting block 2;

[0040] Suction cup 304, which is made of elastic rubber material, has an inner wall of suction cup 304 fixedly connected to an outer wall of internal thread sleeve 301, and an outer wall of suction cup 304 fixedly connected to one end of air pipe 303, and suction cup 304 is used to suck up the zinc block under negative pressure;

[0041] The top plate 1 is fixed on the steel frame, and then the motor 5 is started to control the electric mechanical arm 6 to extend and retract, and the connecting block 2 is controlled to maintain a vertical state and descend, driving the suction cup 304 below to rise and fall vertically, and negatively adsorb the zinc block to be adsorbed below, and then move, so as to realize the transportation and loading and unloading of the zinc block; Embodiment 2:

[0042] See also Figure 1-7 On the basis of the first embodiment, the present invention provides a technical solution: the inner wall of the internal threaded sleeve 301 is threadedly connected with a threaded rod A305, the inner wall of the threaded rod A305 is threadedly connected with a threaded rod B306, the end of the threaded rod A305 away from the threaded rod B306 is fixedly connected to the inner wall of the internal threaded sleeve 301 by a spring, and the end of the threaded rod B306 close to the threaded rod A305 is fixedly connected to the inner wall of the threaded rod A305 by a spring.

[0043] An air groove B308 is provided on the outer wall of the internal threaded sleeve 301, a one-way valve A is fixedly connected to the inner wall of the air groove B308, an air inlet end of the one-way valve A is communicated with the inner wall of the internal threaded sleeve 301, an air groove A307 is provided on the outer wall of the internal threaded sleeve 301, a one-way valve B is fixedly connected to the inner wall of the air groove A307, an air inlet end of the one-way valve B is communicated with the outside of the internal threaded sleeve 301;

[0044] When the suction cup 304 is driven to descend vertically, before the suction cup 304 contacts the zinc block, the arc surface at the bottom of the threaded rod B306 contacts the zinc block first, and is squeezed to slide toward the inner wall of the threaded rod A305 through the threads of the outer wall, and one end of the threaded rod B306 is connected to the inner wall of the threaded rod A305 through a spring, and one end of the threaded rod A305 is also connected to the inner wall of the internal threaded sleeve 301 through a spring, so when the threaded rod B306 is squeezed, the elastic forces of the two springs are equal, and the threaded rod B306 slides into the threaded rod A305, and the threaded rod A305 will slide toward the inner wall of the internal threaded sleeve 301 in real time and start to rotate through the threads, and the top of the internal threaded sleeve 301 is also connected to the bottom of the connecting block 2 by rotation, so when the connecting block 2 pushes the internal threaded sleeve 301, the threaded rod A305, and the threaded rod B306 to descend synchronously and start to slide and retract through the threads, they will rotate together;

[0045] Therefore, the internal thread sleeve 301 will start to rotate and control the suction cup 304 to rotate synchronously. When the suction cup 304 rotates, the dust adhered to the inner wall of the suction cup 304 and the surrounding particles when the suction cup 304 is working will be thrown out as much as possible through the centrifugal force of rotation, so as to keep the inner wall of the suction cup 304 clean. Therefore, after the threaded rod B306 and the threaded rod A305 are completely retracted into the internal thread sleeve 301, when the suction cup 304 negatively adsorbs the zinc block, the smoothness of the contact surface and the stability of the adsorption are guaranteed, so as to avoid the problem of air leakage and looseness caused by the presence of particles and dust during the movement after the zinc block is adsorbed.

[0046] When the sucker 304 descends and the threaded rod A305 retracts into the internal threaded sleeve 301, the air on the inner wall of the internal threaded sleeve 301 will be squeezed, and the air in the sealed space on the inner wall of the internal threaded sleeve 301 will be squeezed and ejected from the air groove B308 at the bottom of the internal threaded sleeve 301. Because the spray hole of the air groove B308 is small and the pressure is increased, the position where the zinc block is about to be pressed by the sucker 304 can be effectively blown with high pressure, and the residue, debris and dust on the surface of the zinc block can be blown away to a certain extent, so as to keep the space between the sucker 304 and the zinc block clean as much as possible, and reduce the leakage of negative pressure adsorption;

[0047] After the suction cup 304 negatively adsorbs the zinc block, when the mobile transportation is used for transferring and loading and unloading, once the suction cup 304 leaks and loosens when adsorbing the zinc block, air intake between the suction cup 304 and the zinc block will cause the suction cup 304 to start to become higher from a flat shape. Once the distance between the center of the suction cup 304 and the zinc block increases, the threaded rod B306 will be subject to the elastic force of the spring on the inner wall of the threaded rod A305, and the threaded rod B306 will be ejected. Once the threaded rod B306 is ejected, air will be taken in through the air groove A307 on the outer wall of the internal threaded sleeve 301, and a whistle will be emitted, realizing an automatic sound alarm for the surrounding staff. The staff can judge the adsorption and looseness status between the suction cup 304 and the zinc block through this whistle and the duration of the whistle, and give early warning, which can reduce the occurrence of accidents to a certain extent. Embodiment three:

[0048] See also Figure 1-7 On the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution: an anti-falling mechanism 4 is arranged on the outer wall of the internal threaded sleeve 301, and the anti-falling mechanism 4 comprises a hinge block 401, and the outer wall of the hinge block 401 is fixedly connected to the outer wall of the internal threaded sleeve 301, and the inner wall of the hinge block 401 is hinged with a hinge rod A402, and one end of the hinge rod A402 is fixedly connected to a rotating shaft A403, and one end of the rotating shaft A403 is fixedly connected to a fixed plate A404, and the outer wall of the fixed plate A404 is fixedly connected to a torsion spring A405, and the outer wall of the torsion spring A405 is fixedly connected to a hinge rod B406, and one end of the hinge rod B406 is rotatably connected to the outer wall of the rotating shaft A403, and the outer wall of the hinge rod A402 is fixedly connected to a long spring 415, and one end of the long spring 415 is fixedly connected to the outer wall of 301.

[0049] One end of the hinged rod B406 is rotatably connected to a rotating shaft B407, a torsion spring B409 is fixedly connected to the outer wall of the hinged rod B406, one end of the torsion spring B409 is fixedly connected to a fixed plate B408, an outer wall of the fixed plate B408 is fixedly connected to one end of the outer wall of the rotating shaft B407, and one end of the rotating shaft B407 is fixedly connected to a hinged rod C410.

[0050] A scraper plate 412 is fixedly connected to the bottom of the hinge rod C410 , and a sliding groove 413 is provided on the inner wall of the scraper plate 412 .

[0051] The inner wall of the slide groove 413 is slidably connected with a scraper strip 414 , and the outer wall of the scraper strip 414 contacts the outer wall of the scraper plate 412 .

[0052] The thread lead angle of the threaded rod B306 and the threaded rod A305 on the outer wall is greater than fifty-five degrees, and the inner wall of the air pipe 303 is connected to the inner wall of the suction cup 304.

[0053] And when the suction cup 304 descends vertically, the hinged rod C410 below the suction cup 304 will first contact the surface of the zinc block, and the hinged rod C410 is subjected to the elastic force of the torsion spring B409 in the hinge of the hinged rod B406, so that the hinged rod C410 keeps the end away from the hinged rod B406 and tilts downward, and the state of the hinged rod C410 is not in a horizontal state. When the downward tilted end of the hinged rod C410 first contacts the zinc block, the scraper strip 414 in the inner wall of the scraper 412 slides on the inner wall of the slide groove 413 away from the end 416 due to gravity. As the internal threaded sleeve 301 continues to descend, one end of the hinged rod C410 contacts the zinc block, and then it begins to change from an inclined state to a horizontal state that is completely in contact with the zinc block. Then the bottom of the scraper 412 at the bottom of the hinged rod C410 is completely in contact with the zinc block. As the internal threaded sleeve 301 continues to descend, the hinged rod A40 2. The hinged rod B406 will begin to slide outwards as it is in the hinged state, and the angle between the hinged rod C410 and the hinged rod B406 will begin to decrease, ensuring that when the suction cup 304 is completely in contact with the zinc block, the hinged block 401 will be completely pushed out from the bottom of the suction cup 304 to the outside, which will not affect the suction of the zinc block by the suction cup 304, and the rotation of the internal threaded sleeve 301 will drive the hinged block 401 and the hinged rod B406 and the hinged rod C410 of the outer wall to rotate, and the hinged rod C410 will scrape away all the remaining dust and particle residues on the smooth surface of the zinc block through the scraper 412 and the zinc block, and throw them outwards with the centrifugal force of the rotation, and with the jet of the air slot B308, the residue is further blown away in real time, so that the residue with strong adhesion on the surface of the zinc block can also be removed, thereby improving the stability of the negative pressure adsorption of the suction cup 304;

[0054] When the hinged rod C410 and the scraper 412 rotate, the scraper strip 414 in the chute 413 on the inner wall of the scraper 412 is thrown outward by centrifugal force. Because the scraper strip 414 was originally on the side of the inner wall of the chute 413 away from the hinged rod B406, the rotation now throws it outward along the centrifugal direction, so that the inner wall of the chute 413 slides against the outer wall of the scraper 412 to scrape the scraper 412, completing the self-cleaning of the scraper 412. Keeping the scraper 412 clean also effectively ensures the cleaning effect of the zinc block.

[0055] After the adsorption work is completed, the air is injected into the suction cup 304 through the air pipe 303 by starting the fan 302, and the negative pressure between the suction cup 304 and the zinc block disappears. When the internal threaded sleeve 301 begins to rise synchronously with the electric mechanical arm 6, the articulated rod C410 will return to the initial inclined state under the restriction of gravity and the elastic force of the torsion spring B409, and the scraper 414 on the inner wall of the slide groove 413 will slide back to its original position under the gravity, so that each time the adsorption is performed, it will be completely reset and a complete cleaning and scraping work will be performed again.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A suction cup type automatic loading and unloading rotary robot arm for zinc block processing, comprising a top plate (1), a motor (5) fixedly connected to the bottom of the top plate (1), and an electric robot arm (6) fixedly connected to the bottom of the motor (5), characterized in that: A connecting block (2) is fixedly connected to the bottom of the electric mechanical arm (6), and an adsorption mechanism (3) is provided below the connecting block (2); The adsorption mechanism (3) comprises: An internal threaded sleeve (301), the internal threaded sleeve (301) being a circular columnar structure, one end of the internal threaded sleeve (301) being rotatably connected to the bottom of the connection block (2), a fan (302) being fixedly connected to the outer wall of the internal threaded sleeve (301), one end of the fan (302) being fixedly connected to an air pipe (303), and the internal threaded sleeve (301) being used to connect the connection block (2); A suction cup (304), wherein the suction cup (304) is made of elastic rubber material, the inner wall of the suction cup (304) is fixedly connected to the outer wall of the internal threaded sleeve (301), the outer wall of the suction cup (304) is fixedly connected to one end of the air pipe (303), and the suction cup (304) is used to suck up the zinc block under negative pressure; The inner wall of the internal threaded sleeve (301) is threadedly connected to a threaded rod A (305), the inner wall of the threaded rod A (305) is threadedly connected to a threaded rod B (306), one end of the threaded rod A (305) away from the threaded rod B (306) is fixedly connected to the inner wall of the internal threaded sleeve (301) via a spring, and one end of the threaded rod B (306) close to the threaded rod A (305) is fixedly connected to the inner wall of the threaded rod A (305) via a spring; An air groove B (308) is formed on the outer wall of the internal threaded sleeve (301), a one-way valve A is fixedly connected to the inner wall of the air groove B (308), an air inlet end of the one-way valve A is communicated with the inner wall of the internal threaded sleeve (301), an air groove A (307) is formed on the outer wall of the internal threaded sleeve (301), a one-way valve B is fixedly connected to the inner wall of the air groove A (307), an air inlet end of the one-way valve B is communicated with the outside of the internal threaded sleeve (301); The outer wall of the internal threaded sleeve (301) is provided with an anti-falling mechanism (4), the anti-falling mechanism (4) comprises a hinge block (401), the outer wall of the hinge block (401) is fixedly connected to the outer wall of the internal threaded sleeve (301), the inner wall of the hinge block (401) is hinged with a hinge rod A (402), one end of the hinge rod A (402) is fixedly connected to a rotating shaft A (403), one end of the rotating shaft A (403) is fixedly connected to a fixed plate A (404), the outer wall of the fixed plate A (404) is fixedly connected to a torsion spring A (405), the outer wall of the torsion spring A (405) is fixedly connected to a hinge rod B (406), one end of the hinge rod B (406) is rotatably connected to the outer wall of the rotating shaft A (403), the outer wall of the hinge rod A (402) is fixedly connected to a long spring (415), one end of the long spring (415) is fixedly connected to the outer wall of 301; One end of the hinged rod B (406) is rotatably connected to a rotating shaft B (407); an outer wall of the hinged rod B (406) is fixedly connected to a torsion spring B (409); one end of the torsion spring B (409) is fixedly connected to a fixed plate B (408); an outer wall of the fixed plate B (408) is fixedly connected to one end of an outer wall of the rotating shaft B (407); and one end of the rotating shaft B (407) is fixedly connected to a hinged rod C (410).

2. The automatic loading and unloading rotary robot arm for processing a suction cup zinc block according to claim 1 is characterized in that: A scraper (412) is fixedly connected to the bottom of the hinged rod C (410), and a sliding groove (413) is provided on the inner wall of the scraper (412).

3. The automatic loading and unloading rotary robot arm for processing a suction cup zinc block according to claim 2 is characterized in that: The inner wall of the sliding groove (413) is slidably connected with a scraper strip (414), and the outer wall of the scraper strip (414) is in contact with the outer wall of the scraper plate (412).

4. The automatic loading and unloading rotary robot arm for processing a suction cup zinc block according to claim 3 is characterized in that: The thread lead angle of the threads on the outer walls of the threaded rod B (306) and the threaded rod A (305) is greater than fifty-five degrees, and the inner wall of the air pipe (303) is connected to the inner wall of the suction cup (304).

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