An automatic screw assembly device for new energy differentials

Abstract

This invention discloses an automatic screw assembly device for new energy differentials, relating to the field of automated screw assembly. It includes a differential conveying platform with a support bracket on its side. An assembly robot and a feeding assembly are mounted on the support bracket. The feeding assembly includes a carrier plate with a gantry platform on its upper surface. A rigid tube is vertically threaded through the top of the gantry platform, connected to a flexible tube for transmitting screws. A baffle is linearly and elastically slidably mounted at the bottom of the gantry platform via a spring, blocking the bottom opening of the rigid tube. A transfer block is linearly and slidably mounted on the surface of the carrier plate. This invention uses a flexible tube and rigid tube to arrange the transmitting screws, and a baffle to prevent the screws from falling. A linear cylinder extends and retracts, pushing the transfer block to reciprocate once, causing the transfer block to press against the baffle, opening the rigid tube and discharging the screws into the material chamber, thus completing the individual screw removal. This method offers high automated material handling efficiency, convenient operation, a small material handling component, and continuous screw supply.

Description

Technical Field

[0001] This invention relates to the field of automated screw assembly, and more particularly to an automated screw assembly device for new energy differentials. Background Technology

[0002] Differential assembly screws are an important part of its automated production process. A linear conveyor platform is used to transport the assembled differential to the assembly process, and a robotic arm is used to assemble the screws. The robotic arm needs to pick up the screws one by one from the loading point and then transfer them to the assembly point of the differential to rotate and assemble the screws.

[0003] In the automated screw assembly process, the feeding point needs to stably supply screws to the robot. The traditional screw supply is achieved by loading onto a tray. This method requires a large space for the tray and the tray needs to be replaced in time to maintain a stable supply. It is difficult to supply screws continuously and stably. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, the purpose of this invention is to provide an automatic screw assembly device for new energy differentials, which solves the problems of large space occupation, the need to replace the carrier plate in a timely manner to maintain a stable supply of materials, and the difficulty of uninterrupted and stable screw supply in the traditional method of screw supply.

[0005] To address the problems of the prior art, the technical solution of the present invention is as follows:

[0006] An automatic screw assembly device for new energy differentials includes a differential conveying platform, a bracket set on the side of the differential conveying platform, and an assembly robot and a feeding component mounted on the surface of the bracket.

[0007] The feeding assembly includes a carrier plate, a gantry platform on the upper surface of the carrier plate, a rigid tube vertically running through the top of the gantry platform, and a flexible tube connected to a conductive screw. A baffle is linearly and elastically slidably installed at the bottom of the gantry platform via a spring, and the baffle is used to block the bottom opening of the rigid tube. A transfer block is linearly and slidably installed on the surface of the carrier plate, and a material cavity is opened on the top surface of the transfer block. A linear cylinder is installed on the surface of the carrier plate. The linear cylinder extends to drive the transfer block to below the gantry platform. The transfer block presses against the baffle to open the bottom opening of the rigid tube, allowing the screw inside the rigid tube to fall into the material cavity. The linear cylinder retracts to drive the transfer block to separate and misalign with the gantry platform, and the baffle elastically resets to block the bottom opening of the rigid tube.

[0008] Preferably, the baffle is flat against the bottom surface of the portal frame, and the end of the baffle away from the transfer block is an upturned end. Guide posts are symmetrically fixed on the side of the portal frame, and the guide posts are slidably inserted into the upturned end of the baffle. A spring is provided on the outside of the guide post, and the spring applies pressure to the baffle in the direction of the portal frame.

[0009] Preferably, a clamping plate is elastically rotated on the side of the gantry platform via a torsion spring, and a notch is opened on the side of the rigid tube. The top of the clamping plate corresponds to the notch, and the bottom of the clamping plate abuts against the upturned end of the baffle. When the baffle blocks the bottom opening of the rigid tube, the upturned end presses against the bottom of the clamping plate, so that the top of the clamping plate opens the notch. When the baffle moves to the side to open the bottom opening of the rigid tube, the clamping plate elastically twists so that its top passes through the notch and presses against the second screw in the lower part of the rigid tube.

[0010] Preferably, a micro switch is provided on the side wall of the rigid tube, and the position of the micro switch corresponds to the upper part of the material clamping plate. When there is a shortage of material in the rigid tube, the excessive twisting of the material clamping plate can trigger the micro switch.

[0011] Preferably, the transfer block has a movable cavity on the side near the baffle, which crosses the material cavity. Two clamping arms are rotatably arranged in a cross shape inside the movable cavity. Two positioning wheels are rotatably arranged at the inner end of the clamping arms, and the outer end of the clamping arms protrudes from the surface of the transfer block. A spring applies a closing force between the two clamping arms, so that the four positioning wheels can abut against the screw in the center of the material cavity. The end of the baffle near the transfer block is a recessed end. When the transfer block presses against the baffle, the outer end of the clamping arms abuts against the recessed end of the baffle, causing the two clamping arms to drive the positioning wheels to expand.

[0012] Preferably, the material cavity is cylindrical, and the top opening of the material cavity is flared.

[0013] Preferably, the transfer block has a detection hole that passes through the material cavity on its side, and a first infrared sensor is installed on the surface of the gantry. When the linear cylinder retracts and drives the transfer block to separate and misalign with the gantry, the first infrared sensor is facing the detection hole.

[0014] Preferably, the assembly robot includes an X-axis screw actuator, which is disposed on the surface of the support. The moving unit of the X-axis screw actuator is connected to a Y-axis screw actuator, and the moving unit of the Y-axis screw actuator is connected to a vertical plate. A screw fastening mechanism and a vertical cylinder are vertically slidably mounted on the surface of the vertical plate. The vertical cylinder is used to drive the screw fastening mechanism to move up and down.

[0015] Preferably, the screw fastening mechanism includes a torsion motor and a housing mounted on the surface of the vertical plate. The output shaft of the torsion motor is connected to a shaft tube, which rotates downwards and passes through the housing. A hexagonal slot is provided at the bottom of the shaft tube. A sealing ring is provided inside the housing, and a sealed annular air cavity is formed between the sealing ring and the shaft tube. An air nozzle is installed on the side of the housing and is connected to an external air source. Air holes are provided on the surfaces of the shaft tube and the sealing ring so that the shaft tube can pass through the air nozzle during rotation.

[0016] Preferably, a second infrared sensor is mounted on the surface of the bracket, and the second infrared sensor points to the bottom end of the shaft tube.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. This invention uses flexible hoses and rigid tubes to arrange and transmit screws, and uses baffles to prevent the screws from falling. A linear cylinder extends and retracts to push the transfer block to move back and forth once, so that the baffles on the side of the transfer block open the rigid tubes to discharge the screws into the material chamber, thus completing the removal of the screws one by one. The automated material handling is highly efficient, easy to operate, and the material handling components are small in size, enabling continuous and uninterrupted supply of screws.

[0019] 2. In the process of material handling by the side pressure baffle of the transfer block, the present invention automatically releases the twisting of the clamping plate, so that the clamping plate abuts against the second screw at the bottom. Only the bottom screw falls into the material cavity, and the second screw at the bottom cannot fall at the same time, which effectively prevents the second screw from falling below the bottom opening of the rigid tube and blocking the transfer block from moving to the left and resetting.

[0020] 3. When the lateral transfer block picks up material, the outer end of the clamping arm abuts against the lower end of the baffle, causing the positioning wheel to move to the material discharge area, making it easier for the subsequent screws to fall into the material cavity. After the material is picked up, the transfer block moves to the left, so that the clamping arm does not contact the lower end of the baffle. The elastic force makes the clamping arm close together, and the four positioning wheels abut against the screws, which are centrally distributed in the material cavity, making it easy for the assembly robot to pick up material accurately. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the assembly robot structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the feeding assembly structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the misaligned separation structure of the transfer block and the portal frame of the present invention.

[0025] Figure 5 This is a schematic diagram of the material receiving structure of the material cavity of the present invention.

[0026] Figure 6 This is a schematic diagram of the clamp arm mounting structure of the present invention.

[0027] Figure 7 This is a schematic diagram of the screw fastening mechanism of the present invention.

[0028] Reference numerals: 1. Differential transmission platform; 2. Support frame; 3. Assembly robot; 31. X-axis screw actuator; 32. Y-axis screw actuator; 33. Vertical plate; 34. Vertical cylinder; 4. Feeding assembly; 41. Carrier plate; 42. Gantry platform; 43. Rigid tube; 431. Bayonet; 44. Transfer block; 441. Material chamber; 442. Detection hole; 443. First infrared sensor; 444. Clamping arm; 445. Movable chamber; 446. Positioning wheel; 45. Linear cylinder; 46. Hose; 47. Baffle; 471. Guide post; 48. Material clamping plate; 49. Micro switch; 5. Screw fastening mechanism; 51. Torsion motor; 52. Encapsulation shell; 53. Shaft tube; 54. Hexagonal slot; 55. Sealing ring; 56. Air hole; 57. Air nozzle; 58. Annular air chamber; 6. Second infrared sensor. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Automatic assembly screw equipment for new energy differentials, such as Figure 1 As shown, it includes a differential conveyor platform 1, a bracket 2, an assembly robot 3, and a feeding assembly 4.

[0031] The differential conveying platform 1 has a support frame with two rows of linear slide rails mounted on the surface of the support frame. A lead screw is rotatably mounted on the surface of the support frame, and a servo motor is connected to the end of the lead screw. The support base slides with the slide rails via a slider and is threaded through by the lead screw, positioning the assembled differential on the surface of the support base. The lead screw is driven to rotate by the servo motor, which drives the support base to linearly convey the differential to the screw assembly station.

[0032] The bracket 2 is installed on the side of the middle part of the differential conveying platform 1. Two sets of assembly robots 3 are installed on the top of the bracket 2. The two sets of assembly robots 3 are distributed on both sides of the differential conveying platform 1 to realize the dual-station synchronous assembly of screws.

[0033] like Figure 2 As shown, the assembly robot 3 includes an X-axis screw actuator 31 and a Y-axis screw actuator 32. The X-axis screw actuator 31 and the Y-axis screw actuator 32 have the same structure. They both have a slide rail and a screw set on the surface of the base plate. The moving unit slides linearly with the slide rail and is threadedly connected to the screw. The screw is driven by a servo motor to drive the moving unit to move linearly.

[0034] X-axis screw actuator 31 is mounted on the surface of bracket 2. The moving unit of X-axis screw actuator 31 is connected to Y-axis screw actuator 32. The moving unit of Y-axis screw actuator 32 is connected to vertical plate 33. Vertical screw fastening mechanism 5 and vertical cylinder 34 are vertically slidably mounted on the surface of vertical plate 33. Vertical cylinder 34 is used to drive screw fastening mechanism 5 to move up and down. Through the linear movement of X-axis screw actuator 31 and Y-axis screw actuator 32, and in conjunction with the vertical push of vertical cylinder 34, screw fastening mechanism 5 can move arbitrarily in the forward, backward, left, right, up and down directions.

[0035] like Figure 7 As shown, the screw fastening mechanism 5 includes a torsion motor 51 and a housing 52 mounted on the surface of the vertical plate 33. The output shaft of the torsion motor 51 is connected to a shaft tube 53. The shaft tube 53 rotates downward and passes through the housing 52. The top of the shaft tube 53 is sealed and the bottom is provided with a hexagonal slot 54. A sealing ring 55 is installed inside the housing 52. A sealed annular air cavity 58 is formed between the sealing ring 55 and the shaft tube 53. An air nozzle 57 is installed on the side of the housing 52. The air nozzle 57 is connected to an external air source. Air holes 56 are opened on the surfaces of the shaft tube 53 and the sealing ring 55 so that the shaft tube 53 can pass through the air nozzle 57 during rotation.

[0036] When picking up the screw, the drive screw fastening mechanism 5 descends so that the hexagonal slot 54 fits and locks into the hexagonal end of the screw. Then, the external air source draws air through the air nozzle 57 to create a negative pressure inside the shaft tube 53. The screw is fixed by the negative pressure adsorption. The assembly robot 3 transfers the screw to the assembly point. The shaft tube 53 is driven to rotate by the torsion motor 51. The vertical cylinder 34 drives the vertical plate 33 to descend slowly, so that the shaft tube 53 torsion screws are assembled.

[0037] like Figure 2 , Figure 3 As shown, the feeding assembly 4 includes a carrier plate 41, which is fixedly connected to the bracket 2. A gantry platform 42 is fixedly installed on the upper surface of the carrier plate 41. A rigid tube 43 is vertically fixed through the top of the gantry platform 42. The top of the rigid tube 43 extends upward to connect to a flexible hose 46. The flexible hose 46 is connected to a vibratory feeder or other screw supply mechanism, so that the screws are arranged downward through the flexible hose and transmitted into the rigid tube 43.

[0038] like Figure 3 , Figure 4 , Figure 5As shown, a baffle 47 is flatly installed at the bottom of the gantry 42. The right end of the baffle 47 is bent upward to form an upturned end. Guide posts 471 are symmetrically fixed on the right side of the gantry 42. The guide posts 471 are slidably inserted into the upturned end of the baffle 47, so that the baffle 47 can slide linearly left and right along the guide posts 471. A spring is installed on the outside of the guide posts 471. A threaded nut is connected to the tail end of the guide posts 471 to block the spring. The spring applies pressure to the baffle 47 in the direction of the gantry 42. Under normal conditions, the baffle 47 is positioned below the gantry 42 by the elastic force, so that the baffle 47 seals the bottom opening of the rigid tube 43 to prevent the screw from being exposed.

[0039] A transfer block 44 is linearly slidably installed on the surface of the carrier plate 41 via a slide rail. The transfer block 44 is located on the left side of the gantry platform 42. A linear cylinder 45 is installed on the left end of the carrier plate 41. The telescopic end of the linear cylinder 45 is connected to the transfer block 44. A material cavity 441 is opened on the top surface of the transfer block 44. The material cavity 441 is cylindrical and the top opening of the material cavity 441 is flared.

[0040] The principle of screw supply one by one is as follows:

[0041] The linear cylinder 45 extends and pushes the transfer block 44 to the right, moving it below the gantry 42. During this process, the transfer block 44 pushes the baffle 47 away from the spring force, aligning the material cavity 441 with the bottom opening of the rigid tube 43. The screw at the bottom of the rigid tube 43 falls into the material cavity 441. Then, the linear cylinder 45 retracts and drives the transfer block 44 to move to the left and reset, causing the transfer block 44 to be misaligned and separated from the gantry 42. During this process, the baffle 47 simultaneously resets to the left and re-seals the bottom opening of the rigid tube 43. The assembly robot 3 removes the screw from the material cavity 441 for assembly and fixation. Then, the above process is repeated to remove one screw, waiting for the assembly robot 3 to remove it again.

[0042] like Figure 4 , Figure 5 As shown, a clamping plate 48 is installed on the right side of the gantry 42 by a torsion spring. A slot 431 is opened on the side of the rigid tube 43. The position of the slot 431 corresponds to the top of the clamping plate 48 and the second screw in the lower part of the rigid tube 43. The bottom end of the clamping plate 48 abuts against the upturned end of the baffle 47.

[0043] With the baffle 47 blocking the bottom opening of the rigid tube 43, the upturned end of the baffle 47 presses against the bottom end of the clamping plate 48, allowing the top of the clamping plate 48 to open the clamping slot 431, so that the screws inside the rigid tube 43 can be freely arranged. When the transfer block 44 pushes the baffle 47 to the right to remove the screws, the upturned end that moves to the right gradually disengages from the bottom end of the clamping plate 48. The clamping plate 48 is twisted by the elastic force. Before the baffle 47 opens the bottom opening of the rigid tube 43, the top of the clamping plate 48 passes through the clamping slot 431 and presses against the second screw at the bottom of the rigid tube 43, ensuring that when the bottom opening of the rigid tube 43 is opened, only the bottommost screw falls into the material cavity 441, and the second screw at the bottom cannot fall simultaneously, effectively preventing the second screw from falling below the bottom opening of the rigid tube 43 and blocking the transfer block 44 from moving to the left to reset.

[0044] When the transfer block 44 moves to the left and resets, the baffle 47 simultaneously resets and blocks the bottom opening of the rigid tube 43. The baffle plate 47 presses against the bottom of the clamping plate 48 through its upturned end, causing the top of the clamping plate 48 to re-open the clamping opening 431, and the screws inside the rigid tube 43 fall freely and rearrange themselves.

[0045] like Figure 5 As shown, a micro switch 49 is installed on the side wall of the rigid tube 43. The position of the micro switch 49 corresponds to the upper part of the clamping plate 48. The micro switch 49 is connected to the control host of the equipment through the controller. When only one screw is removed from the rigid tube 43 and there is a shortage of material, the clamping plate 48 cannot contact the screw after passing through the clamping slot 431 and is over-twisted, causing the clamping plate 48 to touch the micro switch 49. The micro switch 49 transmits a signal to the control host to promptly remind that there is a shortage of material.

[0046] like Figure 4 , Figure 5 , Figure 6 As shown, a movable cavity 445 is opened on the right side of the transfer block 44. The movable cavity 445 is transversely cut off from the material cavity 441. Two clamping arms 444 are installed in the movable cavity 445 in a cross shape. Two positioning wheels 446 are rotatably set at the inner end of the clamping arms 444. The outer end of the clamping arms 444 protrudes from the surface of the transfer block 44. The two clamping arms 444 are connected by a spring and a closing force is applied between them. The end of the baffle 47 near the transfer block 44 is bent downward to form a sunken end.

[0047] When the transfer block 44 presses against the baffle 47 to pick up the material, the outer end of the clamping arm 444 abuts against the lower end of the baffle 47, causing the two clamping arms 444 to drive the positioning wheel 446 to expand, so that the positioning wheel 446 moves to the area of ​​the discharge chamber 441, making it easier for the screw to fall into the material chamber 441. After the material is picked up, the transfer block 44 moves to the left, so that the clamping arm 444 does not contact the lower end of the baffle 47. The elastic force makes the clamping arm 444 close together, and the four positioning wheels 446 can abut against the screws that are centrally distributed in the material chamber 441, which facilitates the precise picking up of materials by the assembly robot 3.

[0048] like Figure 3As shown, a detection hole 442 is opened on the side of the transfer block 44, which passes through the material cavity 441. A first infrared sensor 443 is installed on the surface of the gantry table 42. After the material is picked up, the linear cylinder 45 retracts and drives the transfer block 44 to reset to the left. The first infrared sensor 443 is facing the detection hole 442. The first infrared sensor 443 monitors whether there is a screw in the material cavity 441. If no screw is detected, it sends a feeding operation abnormality signal to the host.

[0049] like Figure 2 As shown, a second infrared sensor 6 is suspended on the surface of the bracket 2. After the assembly robot 3 finishes picking up the material, it moves up to the monitoring height and uses the second infrared sensor 6 to monitor whether there is a screw at the bottom of the shaft tube 53. If no screw is detected, a signal of abnormal material picking operation is sent back to the host.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A new energy differential automatic screw assembly device, comprising a differential conveying platform (1), a support (2) is arranged on the side of the differential conveying platform (1), and an assembly manipulator (3) and a feeding assembly (4) are mounted on the surface of the support (2); characterized in that The feeding assembly (4) comprises a carrier plate (41), a gate-shaped table (42) is arranged on the upper surface of the carrier plate (41), a hard tube (43) is vertically and penetratingly arranged on the top of the gate-shaped table (42), and a soft tube (46) for conducting screws is connected to the hard tube (43); a baffle (47) is linearly and elastically slidably arranged at the bottom of the gate-shaped table (42) by a spring, and the baffle (47) is used for plugging the bottom opening of the hard tube (43); a transfer block (44) is linearly slidably arranged on the surface of the carrier plate (41), a material cavity (441) is formed in the top surface of the transfer block (44), a linear cylinder (45) is mounted on the surface of the carrier plate (41), the linear cylinder (45) is elongated to drive the transfer block (44) to be below the gate-shaped table (42), the baffle (47) is pressed on one side of the transfer block (44) to open the bottom opening of the hard tube (43), so that the screws in the hard tube (43) fall into the material cavity (441), the linear cylinder (45) is retracted to drive the transfer block (44) to be separated from the gate-shaped table (42) and dislocated, and the baffle (47) is elastically reset to plug the bottom opening of the hard tube (43).

2. The new energy differential automatic screw assembling device according to claim 1, characterized in that, The baffle (47) is flatly attached to the bottom surface of the gate-shaped table (42), one end of the baffle (47) away from the transfer block (44) is an upwardly curved end, guide columns (471) are symmetrically and fixedly arranged on the side edges of the gate-shaped table (42), the upwardly curved end of the baffle (47) is slidably inserted into the guide columns (471), springs are arranged outside the guide columns (471), and the springs apply pressure to the baffle (47) in the direction of the gate-shaped table (42).

3. The new energy differential automatic screw assembling device according to claim 2, characterized in that, The gate-shaped table (42) is elastically and rotatably arranged with a material clamping plate (48) through a torsion spring, a side edge of the hard tube (43) is provided with a clamping opening (431), a top end of the material clamping plate (48) corresponds to the clamping opening (431), and a bottom end of the material clamping plate (48) abuts against the upwardly curved end of the baffle (47); when the baffle (47) plugs the bottom opening of the hard tube (43), the upwardly curved end abuts against the bottom end of the material clamping plate (48) to leave the clamping opening (431) on the top of the material clamping plate (48); when the baffle (47) is laterally displaced to open the bottom opening of the hard tube (43), the material clamping plate (48) is elastically twisted to make the top end thereof pass through the clamping opening (431) and abut against the second screw in the lower part of the hard tube (43).

4. The new energy differential automatic screw assembling device according to claim 3, characterized in that, A micro switch (49) is arranged on the side wall of the hard tube (43), the micro switch (49) is located at the upper part of the material clamping plate (48), and when the hard tube (43) is short of materials, the material clamping plate (48) can be excessively twisted to touch the micro switch (49).

5. The new energy differential automatic screw assembling device according to claim 1, characterized in that, The movable cavity (445) is arranged on one side of the transfer block (44) close to the baffle (47), crosses the material cavity (441), and two clamping arms (444) are arranged in the movable cavity (445) and rotate in a cross shape, the inner end of the clamping arm (444) is arranged with two positioning wheels (446), the outer end of the clamping arm (444) protrudes from the surface of the transfer block (44), the two clamping arms (444) are close to each other through the spring, and the four positioning wheels (446) can abut against the screws in the central material cavity (441), one end of the baffle (47) close to the transfer block (44) is a sunken end, when the transfer block (44) presses the baffle (47), the outer end of the clamping arm (444) abuts against the sunken end of the baffle (47), so that the two clamping arms (444) drive the positioning wheels (446) to expand.

6. The new energy differential mechanism automatic screw assembling device according to claim 1, characterized in that, The material cavity (441) is in a cylindrical shape, and the top opening of the material cavity (441) is in an expanding shape.

7. The new energy differential mechanism automatic screw assembling device according to claim 1, characterized in that, The side surface of the transfer block (44) is provided with a detection hole (442) penetrating the material cavity (441), the surface of the gate type table (42) is provided with a first infrared sensor (443), and when the linear cylinder (45) is retracted to drive the transfer block (44) to be separated from the gate type table (42) and to be misaligned, the first infrared sensor (443) directly faces the detection hole (442).

8. The new energy differential mechanism automatic screw assembling device according to claim 1, characterized in that, The assembly robot (3) comprises an X-direction screw actuator (31) arranged on the surface of the support (2), a Y-direction screw actuator (32) connected to the moving unit of the X-direction screw actuator (31), a vertical plate (33) connected to the moving unit of the Y-direction screw actuator (32), a screw fastening mechanism (5) and a vertical cylinder (34) vertically and slidingly arranged on the surface of the vertical plate (33), and the vertical cylinder (34) is used to drive the screw fastening mechanism (5) to move up and down.

9. The new energy differential automatic screw equipment according to claim 8, characterized in that, The screw fastening mechanism (5) comprises a torsion motor (51) and an encapsulation shell (52) arranged on the surface of the vertical plate (33), an output shaft of the torsion motor (51) is connected with a shaft tube (53), the shaft tube (53) downwardly penetrates the encapsulation shell (52), a hexagonal clamping groove (54) is arranged at the bottom opening of the shaft tube (53), a sealing ring (55) is arranged in the encapsulation shell (52), a closed annular air cavity (58) is formed between the sealing ring (55) and the shaft tube (53), an air nozzle (57) is arranged on the side surface of the encapsulation shell (52), the air nozzle (57) is connected with an external air source, and air holes (56) are arranged on the surfaces of the shaft tube (53) and the sealing ring (55), so that the shaft tube (53) can penetrate the air nozzle (57) during rotation.

10. The new energy differential automatic screw equipment of claim 9, wherein, A second infrared sensor (6) is arranged on the surface of the support (2) and points to the bottom end of the shaft tube (53).

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