Pneumatic type feeding mechanical arm

Abstract

The invention relates to the technical field of mechanical arms, and discloses a pneumatic feeding mechanical arm which comprises a base plate, a clamping mechanism is arranged on the upper surface of the base plate and comprises an air cylinder, a connecting plate, a connecting long block and a U-shaped sliding block, a U-shaped block is arranged on the upper surface of the base plate, the upper end of the air cylinder is fixedly connected with the inner wall of the U-shaped block, and the upper end of the connecting plate is fixedly connected with the inner wall of the U-shaped block; the upper surface of the connecting plate is fixedly connected with the lower end of an air cylinder, the middle of the upper surface of the connecting long block is fixedly connected with the lower surface of the connecting plate, and cross-shaped sliding grooves are formed in the two sides of the interior of the connecting long block. According to the pneumatic type feeding mechanical arm, materials can be effectively clamped, follow-up feeding of the materials is facilitated, the clamping mode can effectively prevent the materials from falling off, waste of the materials is avoided, meanwhile, reciprocating motion can be conducted under the action of the air cylinder, feeding of the materials becomes easy and convenient, reciprocating feeding can be achieved, and the working efficiency is improved. And the efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical arms, in particular to a pneumatic feeding mechanical arm. Background Art

[0002] A robotic arm is a complex system with high precision, multiple inputs and multiple outputs, high nonlinearity, and strong coupling. Due to its unique operational flexibility, it has been widely used in industrial assembly, safety and explosion-proof, and other fields. When used in industry, robotic arms are mostly used to deliver and feed materials.

[0003] The existing feeding robot arm adopts a single method to clamp the material when in use. The clamping method is relatively single. In the process of transporting materials, if there is an external force, it is easy to cause the material to fall, which is easy to cause material loss. In addition, the direction of the arm of the existing feeding robot arm is not easy to adjust, so when it is necessary to feed in different directions, it has great limitations. At the same time, the height and distance adjustment are also more troublesome, the operation is more troublesome, and it is not convenient to feed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a pneumatic feeding robot arm, which has the advantages of clamping materials in multiple ways to prevent materials from falling during the feeding process, and effectively adjusting its height, direction and distance, thereby solving the problems raised in the background technology.

[0005] The present invention provides the following technical scheme: a pneumatic feeding robot arm comprises: a base plate, the upper surface of the base plate is provided with a clamping mechanism, the clamping mechanism comprises a cylinder, a connecting plate, a connecting long block and a U-shaped sliding block, the upper surface of the base plate is provided with a U-shaped block, the upper end of the cylinder is fixedly connected to the inner wall of the U-shaped block, the upper surface of the connecting plate is fixedly connected to the lower end of the cylinder, the middle position of the upper surface of the connecting long block is fixedly connected to the lower surface of the connecting plate, the inner two sides of the connecting long block are provided with a cross-shaped sliding groove, one side of the inner wall of the cross-shaped sliding groove is fixedly connected with an elastic column, the outer surface of the elastic column is sleeved with a spring, the outer surface of the U-shaped sliding block is slidably connected to the inner wall of the cross-shaped sliding groove, the other end of the elastic column is fixedly connected to one side of the U-shaped sliding block, the lower surface of the U-shaped sliding block is fixedly connected with a clamping block, the opposite side of the clamping block is fixedly connected with a friction block, and the upper surface of the base plate is respectively provided with a rotation adjustment mechanism and a moving mechanism.

[0006] Preferably, the rotation adjustment mechanism includes a rotating rod, gear two, gear one and a disc, the outer surface of the rotating rod is rotatably connected to the inside of the substrate, the inside of the gear two is fixedly connected to the outer surface of the lower end of the rotating rod, the outer surface of the gear one is meshingly connected to the outer surface of the gear two, the inside of the gear one is fixedly connected to the output shaft of the motor, the outer surface of the disc is rotatably connected to the inside of the substrate, the upper end of the rotating rod is rotatably connected to a threaded rod, the upper surface of the disc is fixedly connected to a carrying frame, the inside of the carrying frame is rotatably connected to the outer surface of the threaded rod, the outer surface of the threaded rod is threadedly connected to a moving block, the outer surface of the moving block is fitted with the inner wall of the carrying frame, and the outer side of the moving block is fixedly connected to a side length block.

[0007] Preferably, the moving mechanism includes a connecting shaft, gear three, a driven wheel and a driven shaft, two ends of the connecting shaft are rotatably connected to the inner wall of the side length block, the interior of gear three is fixedly connected to the outer surface of the connecting shaft, two ends of the driven shaft are rotatably connected to the inner wall of the side length block, the interior of the driven wheel is fixedly connected to the outer surface of the driven shaft, the outer surface of gear three is meshingly connected with an internal toothed belt, the outer surface of the driven wheel is fitted with the inner wall of the internal toothed belt, the lower surface of the side length block is fixedly connected to a bottom block, the interior of the bottom block is slidably connected to a slider, the upper surface of the slider is fixedly connected to the lower surface of the internal toothed belt, and the lower surface of the slider is fixedly connected to a U-shaped block.

[0008] Preferably, an air pipe 1 is fixedly connected inside the cross-shaped slide groove, and two ends of the spring are fixedly connected to one side of the cross-shaped slide groove and one side of the U-shaped sliding block respectively.

[0009] Preferably, a transition block is fixedly connected to the lower surface of the connecting long block, a suction cup is fixedly connected to the lower surface of the transition block, and a second air pipe is fixedly connected to the inside of one side of the transition block.

[0010] Preferably, the substrate is internally rotatably connected with a rotating circular block, the interior of the rotating circular block is fixedly connected to the outer surface of gear 2, the outer surface of the supporting frame is fitted with a circular block, and one side of the circular block is fixedly connected to the outer ends of the moving block.

[0011] Preferably, a mounting frame is fixedly connected to the lower surface of the substrate, and a motor is fixedly mounted inside the mounting frame.

[0012] Preferably, both ends of one side of the circular block are fixedly connected to triangular receiving blocks, and the other side of the triangular receiving block is fixedly connected to a side long block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The pneumatic feeding robot arm is provided with a clamping mechanism. When the material needs to be clamped, the cylinder is first operated to drive the structure at the lower end of the cylinder to descend until the clamping block is placed above the material. At this time, the external air source is connected to the air pipe 1, and the gas is fed into the air pipe 1 through the external air source. At this time, the gas enters the cross-shaped slide groove opened on both sides of the connecting long block through the air pipe 1. Due to the continuous filling of gas, the U-shaped slider is pushed to slide outward on the cross-shaped slide groove. While the U-shaped slider moves, the spring and the elastic column are stretched. At this time, the cylinder continues to work, so that the clamping blocks are placed on both sides of the material, and the suction cup is attached to the upper surface of the material. At this time, the external air source is connected to the air pipe 2, and the gas is discharged to the outside through the air pipe 2. Gas, at this time, the external gas source draws out the gas inside the cross-shaped slide groove through the air pipe, the U-shaped slider loses thrust, and under the reverse action of the spring and the elastic rod, the U-shaped slider slides into the inside of the cross-shaped slide groove, thereby clamping the material. At this time, the cylinder works to drive the material to rise. The setting of this structure can effectively clamp the material, which is convenient for subsequent feeding of the material. This clamping method can effectively prevent the material from falling and avoid wasting the material. At the same time, the cylinder can perform reciprocating motion, which makes the feeding of the material simple and can realize reciprocating feeding, making it more efficient. At the same time, the clamping and adsorption methods are used for feeding to improve the stability of the material during the feeding process.

[0015] 2. The pneumatic feeding robot arm is provided with a rotation adjustment mechanism. When adjusting the angle and height, first, the motor drives gear one to rotate, and gear one drives gear two meshing therewith to rotate, and the rotating rod connected to gear two rotates, and the rotating rod rotates to drive the disk connected thereto to rotate, so as to adjust its angle. When adjusting its height, the threaded rod is driven to rotate by an external driving source, and a moving block threadedly connected to the outer surface of the threaded rod moves inside the bearing frame, and at the same time, a return block connected to the moving block moves on the outer surface of the bearing frame, so as to adjust its height. The setting of this structure can effectively adjust the angle and height, so that the clamping block can be adjusted to a suitable angle and height, so as to clamp the material, facilitate the feeding operation of the material, and improve the feeding efficiency of the device. At the same time, the structure is composed of a mechanical structure to ensure its stability during feeding and avoid material spillage.

[0016] 3. The pneumatic feeding robot arm is provided with a moving mechanism. When the position of the clamping block is adjusted, first, the connecting shaft is driven to rotate by an external driving source, and the connecting shaft drives gear three to rotate. Since gear three is meshed with the internal toothed belt, and the driven wheel is in contact with the inner wall of the internal toothed belt, the internal toothed belt rotates synchronously while gear three rotates, driving the clamping block to move. The internal toothed belt reciprocates through the forward and reverse rotation of gear three, and the clamping block reciprocates synchronously so that the material can be fed back and forth. The setting of this structure can effectively drive the clamping block to move, and can enable the clamping block to move to the top of the material while feeding the material back and forth, thereby improving the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the rotation adjustment mechanism of the present invention;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the side long block of the present invention;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the clamping mechanism of the present invention;

[0021] Figure 5 It is a partial structural schematic diagram of the clamping mechanism of the present invention.

[0022] In the figure: 1, substrate; 2, rotation adjustment mechanism; 3, moving mechanism; 4, clamping mechanism; 5, bearing frame; 6, triangular receiving block; 7, motor; 8, mounting frame; 9, gear one; 10, gear two; 11, rotating rod; 12, rotating round block; 13, threaded rod; 14, disc; 15, return block; 16, moving block; 17, side long block; 18, inner tooth return belt; 19, gear three; 20, driven wheel; 21, connecting shaft; 22, slider; 23, driven shaft; 24, bottom block; 25, U-shaped block; 26, cylinder; 27, connecting plate; 28, connecting long block; 29, U-shaped sliding block; 30, cross-shaped slide; 31, spring; 32, elastic column; 33, clamping block; 34, friction block; 35, air pipe one; 36, transition block; 37, air pipe two; 38, suction cup. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-5 A pneumatic feeding robot arm comprises: a base plate 1, a clamping mechanism 4 is arranged on the upper surface of the base plate 1, the clamping mechanism 4 comprises a cylinder 26, a connecting plate 27, a connecting long block 28 and a U-shaped sliding block 29, a U-shaped block 25 is arranged on the upper surface of the base plate 1, the upper end of the cylinder 26 is fixedly connected to the inner wall of the U-shaped block 25, the upper surface of the connecting plate 27 is fixedly connected to the lower end of the cylinder 26, the middle position of the upper surface of the connecting long block 28 is fixedly connected to the lower surface of the connecting plate 27, a cross-shaped slide groove 30 is provided on both sides of the interior of the connecting long block 28, an elastic column 32 is fixedly connected to one side of the inner wall of the cross-shaped slide groove 30, a spring 31 is sleeved on the outer surface of the elastic column 32, and the U-shaped sliding block 29 is fixedly connected to the inner wall of the cross-shaped slide groove 30. The outer surface is slidably connected to the inner wall of the cross-shaped slide groove 30, the other end of the elastic column 32 is fixedly connected to one side of the U-shaped sliding block 29, the lower surface of the U-shaped sliding block 29 is fixedly connected with a clamping block 33, and the opposite side of the clamping block 33 is fixedly connected with a friction block 34. The upper surface of the substrate 1 is respectively provided with a rotation adjustment mechanism 2 and a moving mechanism 3, and the interior of the cross-shaped slide groove 30 is fixedly connected with an air pipe 1 35, and the two ends of the spring 31 are respectively fixedly connected to one side of the cross-shaped slide groove 30 and one side of the U-shaped sliding block 29, and the lower surface of the connecting long block 28 is fixedly connected with a transition block 36, and the lower surface of the transition block 36 is fixedly connected with a suction cup 38, and one side of the transition block 36 is fixedly connected to the interior of the air pipe 2 3 7. When clamping the material, the air cylinder 26 is first operated to drive the structure at the lower end of the air cylinder 26 to descend until the clamping block 33 is placed above the material. At this time, the external air source is connected to the air pipe 35, and the air is fed into the air pipe 35 through the external air source. At this time, the air passes through the air pipe 35 and enters the cross-shaped chute 30 opened on both sides of the connecting long block 28. Due to the continuous filling of the gas, the U-shaped slider 22 is pushed to slide outward on the cross-shaped chute 30. When the U-shaped slider 22 moves, the spring 31 and the elastic column 32 are stretched. At this time, the air cylinder 26 continues to work, so that the clamping blocks 33 are placed on both sides of the material, and the suction cup 38 is attached to the upper surface of the material. At this time, the external air source Connect air pipe 2 37 and exhaust to the outside through air pipe 2 37. At this time, the external air source draws out the gas inside the cross-shaped slide groove 30 through air pipe 1 35, and the U-shaped slider 22 loses thrust. Under the reverse action of the spring 31 and the elastic rod, the U-shaped slider 22 slides toward the inside of the cross-shaped slide groove 30, thereby clamping the material. At this time, the cylinder 26 works to drive the material to rise, which can effectively clamp the material and facilitate the subsequent feeding of the material. This clamping method can effectively prevent the material from falling and avoid wasting the material. At the same time, the cylinder 26 can perform reciprocating motion, which makes the feeding of the material simple and can realize reciprocating feeding, making the efficiency higher.

[0025] The rotation adjustment mechanism 2 includes a rotating rod 11, a gear 10, a gear 19 and a disc 14. The outer surface of the rotating rod 11 is rotatably connected to the inside of the substrate 1, the inside of the gear 10 is fixedly connected to the outer surface of the lower end of the rotating rod 11, the outer surface of the gear 19 is meshed with the outer surface of the gear 10, the inside of the gear 19 is fixedly connected to the output shaft of the motor 7, the outer surface of the disc 14 is rotatably connected to the inside of the substrate 1, the upper end of the rotating rod 11 is rotatably connected to the threaded rod 13, and the upper surface of the disc 14 is fixed. The carrier frame 5 is connected, the interior of the carrier frame 5 is rotatably connected to the outer surface of the threaded rod 13, the outer surface of the threaded rod 13 is threadedly connected to a moving block 16, the outer surface of the moving block 16 is fitted with the inner wall of the carrier frame 5, the outer side of the moving block 16 is fixedly connected with a side length block 17, the interior of the substrate 1 is rotatably connected to a rotating circular block 12, the interior of the rotating circular block 12 is fixedly connected to the outer surface of the gear 2 10, the outer surface of the carrier frame 5 is fitted with a return block 15, one side of the return block 15 is fixedly connected to the outer ends of the moving block 16 The lower surface of the substrate 1 is fixedly connected with a mounting frame 8, and a motor 7 is fixedly installed inside the mounting frame 8. When adjusting the angle and height, the motor 7 drives the gear 1 9 to rotate, and the gear 1 9 drives the gear 2 10 meshing therewith to rotate, and the rotating rod 11 connected to the gear 2 10 rotates, and the rotating rod 11 rotates to drive the disk 14 connected thereto to rotate, so as to adjust to a suitable angle. When adjusting the height, the threaded rod 13 is driven to rotate by an external driving source, and the moving block 16 threadedly connected to the outer surface of the threaded rod 13 moves inside the bearing frame 5, and the return block 15 connected to the moving block 16 moves on the outer surface of the bearing frame 5, so as to adjust to a suitable height, which can effectively adjust the angle and height, so that the clamping block 33 can be adjusted to a suitable angle and height, so as to clamp the material, facilitate the feeding operation of the material, and improve the feeding efficiency of the device. At the same time, the structure is composed of a mechanical structure to ensure its stability during feeding and avoid the situation of material spilling.

[0026] Wherein: the moving mechanism 3 includes a connecting shaft 21, a gear three 19, a driven wheel 20 and a driven shaft 23, the two ends of the connecting shaft 21 are rotatably connected to the inner wall of the side long block 17, the interior of the gear three 19 is fixedly connected to the outer surface of the connecting shaft 21, the two ends of the driven shaft 23 are rotatably connected to the inner wall of the side long block 17, the interior of the driven wheel 20 is fixedly connected to the outer surface of the driven shaft 23, the outer surface of the gear three 19 is meshedly connected with the inner toothed belt 18, the outer surface of the driven wheel 20 is fitted with the inner wall of the inner toothed belt 18, the lower surface of the side long block 17 is fixedly connected with the bottom block 24, the interior of the bottom block 24 is slidably connected with a slider 22, the upper surface of the slider 22 is fixedly connected to the lower surface of the inner toothed belt 18, and the lower surface of the slider 22 is fixedly connected with the U-shaped block 2 5. Both ends of one side of the return block 15 are fixedly connected with a triangular receiving block 6, and the other side of the triangular receiving block 6 is fixedly connected to the side long block 17. When adjusting the position of the clamping block 33, first, the connecting shaft 21 is driven to rotate by an external driving source, and the connecting shaft 21 drives the gear three 19 to rotate. Since the gear three 19 is meshed with the internal tooth return belt 18, and the driven wheel 20 is in contact with the inner wall of the internal tooth return belt 18, the internal tooth return belt 18 rotates synchronously with the rotation of the gear three 19, driving the clamping block 33 to move, so that the clamping block 33 moves to the top of the material, which can effectively drive the clamping block 33 to move, and can make the clamping block 33 move to the top of the material while feeding the material back and forth, thereby improving the feeding efficiency.

[0027] Working principle: when in use, first, when adjusting its angle and height, the motor 7 is used to drive the gear 1 9 to rotate, and the gear 1 9 drives the gear 2 10 meshing with it to rotate, and the rotating rod 11 connected to the gear 2 10 rotates, and the rotation of the rotating rod 11 drives the disc 14 connected to it to rotate, so as to adjust to a suitable angle. When adjusting its height, the threaded rod 13 is driven to rotate by an external driving source, and the moving block 16 threadedly connected to the outer surface of the threaded rod 13 moves inside the supporting frame 5, and at the same time, the return block 15 connected to the moving block 16 moves on the outer surface of the supporting frame 5, so as to adjust to a suitable height.

[0028] When adjusting the position of the clamping block 33, first, the connecting shaft 21 is driven to rotate by an external driving source, and the connecting shaft 21 drives the gear three 19 to rotate. Since the gear three 19 is meshed with the internal toothed belt 18, and the driven wheel 20 is in contact with the inner wall of the internal toothed belt 18, the internal toothed belt 18 rotates synchronously with the rotation of the gear three 19, driving the clamping block 33 to move, so that the clamping block 33 moves to the top of the material.

[0029] When the material is clamped at this time, the cylinder 26 is first operated to drive the structure at the lower end of the cylinder 26 to descend until the clamping block 33 is placed above the material. At this time, the external air source is connected to the air pipe 1 35, and gas is fed into the air pipe 1 35 through the external air source. At this time, the gas enters the cross-shaped slide 30 opened on both sides of the connecting long block 28 through the air pipe 1 35. Due to the continuous filling of gas, the U-shaped slider 22 is pushed to slide outward on the cross-shaped slide 30. When the U-shaped slider 22 moves, the spring 31 and the elastic column 32 are stretched. At this time, the cylinder 26 continues to work, so that the clamping block 33 Placed on both sides of the material, while the suction cup 38 is attached to the upper surface of the material, at this time, the external air source is connected to the air pipe 2 37, and the air is exhausted to the outside through the air pipe 2 37. At this time, the external air source draws out the gas inside the cross-shaped slide groove 30 through the air pipe 1 35, and the U-shaped slider 22 loses thrust. Under the reverse action of the spring 31 and the elastic rod, the U-shaped slider 22 slides toward the inside of the cross-shaped slide groove 30, thereby clamping the material. At this time, the cylinder 26 works to drive the material to rise, and the material is sent to the desired position by adjusting the angle and position of the clamping block 33. This reciprocating operation can continuously feed the material.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic feeding robot arm, characterized in that: include: A base plate (1), wherein a clamping mechanism (4) is arranged on the upper surface of the base plate (1), wherein the clamping mechanism (4) comprises a cylinder (26), a connecting plate (27), a connecting long block (28) and a U-shaped sliding block (29), wherein a U-shaped block (25) is arranged on the upper surface of the base plate (1), wherein the upper end of the cylinder (26) is fixedly connected to the inner wall of the U-shaped block (25), the upper surface of the connecting plate (27) is fixedly connected to the lower end of the cylinder (26), the middle part of the upper surface of the connecting long block (28) is fixedly connected to the lower surface of the connecting plate (27), and the inner sides of the connecting long block (28) are provided with cross-shaped sliding blocks. A cross-shaped sliding groove (30) is provided, one side of the inner wall of the cross-shaped sliding groove (30) is fixedly connected with an elastic column (32), the outer surface of the elastic column (32) is sleeved with a spring (31), the outer surface of the U-shaped sliding block (29) is slidably connected to the inner wall of the cross-shaped sliding groove (30), the other end of the elastic column (32) is fixedly connected to one side of the U-shaped sliding block (29), the lower surface of the U-shaped sliding block (29) is fixedly connected with a clamping block (33), the opposite side of the clamping block (33) is fixedly connected with a friction block (34), and the upper surface of the base plate (1) is respectively provided with a rotation adjustment mechanism (2) and a moving mechanism (3).

2. A pneumatic feeding robot arm according to claim 1, characterized in that: The rotation adjustment mechanism (2) comprises a rotation rod (11), a second gear (10), a first gear (9) and a disk (14); the outer surface of the rotation rod (11) is rotationally connected to the inside of the base plate (1); the inside of the second gear (10) is fixedly connected to the outer surface of the lower end of the rotation rod (11); the outer surface of the first gear (9) is meshingly connected to the outer surface of the second gear (10); the inside of the first gear (9) is fixedly connected to the output shaft of the motor (7); the outer surface of the disk (14) is meshingly connected to the base plate (1); The plate (1) is internally rotatably connected, the upper end of the rotating rod (11) is internally rotatably connected with a threaded rod (13), the upper surface of the disc (14) is fixedly connected with a supporting frame (5), the interior of the supporting frame (5) is rotatably connected with the outer surface of the threaded rod (13), the outer surface of the threaded rod (13) is threadedly connected with a moving block (16), the outer surface of the moving block (16) is in contact with the inner wall of the supporting frame (5), and the outer side of the moving block (16) is fixedly connected with a side length block (17).

3. The pneumatic feeding robot arm according to claim 1, characterized in that: The moving mechanism (3) comprises a connecting shaft (21), a gear three (19), a driven wheel (20) and a driven shaft (23); the two ends of the connecting shaft (21) are rotatably connected to the inner wall of the side long block (17); the interior of the gear three (19) is fixedly connected to the outer surface of the connecting shaft (21); the two ends of the driven shaft (23) are rotatably connected to the inner wall of the side long block (17); the interior of the driven wheel (20) is fixedly connected to the outer surface of the driven shaft (23); The outer surface of the gear three (19) is meshingly connected with an inner toothed belt (18), the outer surface of the driven wheel (20) is in contact with the inner wall of the inner toothed belt (18), the lower surface of the side length block (17) is fixedly connected with a bottom block (24), the interior of the bottom block (24) is slidably connected with a slider (22), the upper surface of the slider (22) is fixedly connected with the lower surface of the inner toothed belt (18), and the lower surface of the slider (22) is fixedly connected with a U-shaped block (25).

4. The pneumatic feeding robot arm according to claim 1, characterized in that: An air pipe (35) is fixedly connected inside the cross-shaped slide groove (30), and two ends of the spring (31) are fixedly connected to one side of the cross-shaped slide groove (30) and one side of the U-shaped sliding block (29), respectively.

5. The pneumatic feeding robot arm according to claim 1, characterized in that: The lower surface of the connecting long block (28) is fixedly connected to a transition block (36), the lower surface of the transition block (36) is fixedly connected to a suction cup (38), and one side of the transition block (36) is fixedly connected to an air pipe 2 (37).

6. The pneumatic feeding robot arm according to claim 2, characterized in that: The base plate (1) is internally rotatably connected to a rotating circular block (12), the interior of the rotating circular block (12) is fixedly connected to the outer surface of the second gear (10), the outer surface of the supporting frame (5) is fitted with a return block (15), one side of the return block (15) is fixedly connected to the outer ends of the moving block (16).

7. The pneumatic feeding robot arm according to claim 1, characterized in that: The lower surface of the base plate (1) is fixedly connected to a mounting frame (8), and a motor (7) is fixedly mounted inside the mounting frame (8).

8. The pneumatic feeding robot arm according to claim 6, characterized in that: Both ends of one side of the circular block (15) are fixedly connected to a triangular receiving block (6), and the other side of the triangular receiving block (6) is fixedly connected to a side long block (17).

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