Pneumatic tapping machine

Abstract

The invention belongs to the technical field of tapping machines, particularly relates to a pneumatic tapping machine, and aims to solve the problems of high energy consumption, poor positioning precision and fast equipment abrasion in the background technology, the following scheme is provided: the pneumatic tapping machine comprises a workbench, and one side of the outer wall of the top of the workbench is fixedly connected with an arm support through a bolt; the outer wall of the top of the arm frame is fixedly connected with a servo motor through a screw, and an output shaft of the servo motor is fixedly connected with a reciprocating lead screw through a coupler. Through cooperative work of the air bag and the air baffle, accurate opening and closing of the air blowing opening are achieved. When the lifting table moves upwards, the air blowing opening is tightly attached to the air baffle, the air bag is continuously inflated to accumulate pressure under the air supply of the air inlet main pipe, and when the lifting table moves downwards till the air blowing opening is separated from the air baffle, high-pressure air in the air bag is released instantly, directional high-pressure airflow is formed, and computer parts can be accurately blown into the part storage frame. According to the mechanism, high pressure only needs to be provided at the blowing moment, the air pump only needs to operate at low power at ordinary times, and energy consumption can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tapping machines, in particular to a pneumatic tapping machine. Background Art

[0002] A pneumatic tapping machine is a device that uses pneumatic power to complete thread processing. It is widely used in machinery manufacturing, electronic equipment, automotive parts and other industries. Its core function is to cut precise internal threads in the pre-drilled holes of the workpiece through a high-speed rotating tap. Compared with traditional manual tapping or electric tapping, pneumatic tapping machines have the advantages of stable power output, high processing efficiency, and convenient operation. They are especially suitable for scenarios with high requirements for precision and consistency in mass production. With the development of industrial automation, pneumatic tapping machines have gradually evolved towards intelligence and modularization, but their core structure still relies on the coordination of pneumatic systems and mechanical transmission. In the electronics industry (such as computer parts processing), pneumatic tapping machines have become one of the key production equipment due to their high precision and low vibration characteristics.

[0003] Although pneumatic tapping machines have reached a high level of maturity, there are still some defects in their unloading process. Traditional equipment usually uses continuous blowing to blow the processed parts from the workstation into the parts storage box. However, this blowing method requires the nozzle to always maintain strong wind force to ensure that the parts are completely out of the workstation, resulting in the following problems:

[0004] First, the energy consumption is high: continuous high-pressure blowing requires the air pump to run at high load for a long time, which significantly increases energy consumption and is not in line with the trend of green manufacturing.

[0005] Secondly, the positioning accuracy is poor: the air flow is difficult to control accurately, and the parts are easy to deviate from the predetermined trajectory, causing confusion in material feeding and even damage to parts.

[0006] In addition, the equipment wears out quickly: long-term high-pressure output of the air pump will accelerate the aging of pipelines and valves, and increase the maintenance frequency and cost. Summary of the invention

[0007] In view of the deficiencies of the prior art, the present invention provides a pneumatic tapping machine, which overcomes the deficiencies of the prior art and effectively solves the problems of high energy consumption, poor positioning accuracy and rapid equipment wear.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A pneumatic tapping machine comprises a workbench, one side of the top outer wall of the workbench is fixedly connected to an arm through bolts, and the top outer wall of the arm is fixedly connected to a servo motor through screws, the output shaft of the servo motor is fixedly connected to a reciprocating screw through a coupling, a slider is screwed on the outer wall of the reciprocating screw, and a connecting seat is installed on the outer wall of one side of the slider, a lifting platform is welded to the outer wall of the bottom of the connecting seat, and a three-way joint is fixedly connected to the outer wall of the top of the lifting platform through screws, a symmetrically distributed air intake hose is installed on the outer wall of one side of the three-way joint, and an air bag is fixedly connected to the outer wall of one end of the air intake hose, and a symmetrically distributed air blowing port is arranged at the bottom of the outer wall of one side of the air bag;

[0010] A connecting frame is fixedly connected to the other side of the outer wall of the top of the workbench by screws, and a material baffle plate is welded to the outer wall of the top of the connecting frame, a connecting rod is welded to the outer wall of one side of the material baffle plate, and an air baffle plate is welded to the outer wall of one end of the connecting rod, and the air baffle plate is located at one end of the blowing port.

[0011] Through the above scheme, the arm is fixed to one side of the top of the workbench by bolts, and a servo motor is installed on the top of the arm. The output shaft of the servo motor drives the reciprocating screw to rotate through the coupling. The air intake hose is made of high-pressure resistant rubber material, which passes through the lifting platform and is connected to the airbag. The airbag is made of elastic silicone, and its expansion volume can reach three times of the initial state after inflation, and it has strong pressure storage capacity. The air outlet is a nozzle, and the airflow concentration is high, which can generate directional impact force.

[0012] The airbag and the air baffle work together to achieve precise opening and closing of the air port. When the lifting platform moves up, the air port fits tightly against the air baffle, and the airbag continues to inflate and store pressure under the air supply from the air intake main pipe. When the lifting platform moves down to the point where the air port is separated from the air baffle, the high-pressure gas in the airbag is released instantly, forming a directional high-pressure airflow that can accurately blow computer parts into the parts storage frame. This mechanism only needs to provide high pressure at the moment of blowing, and the air pump only needs to run at low power at other times, which can reduce energy consumption. The air baffle is rigidly connected to the baffle plate through a connecting rod to ensure the fit accuracy between the air port and the air baffle. At the same time, the boom fixes the air port to the lifting platform to avoid structural shaking caused by airflow recoil. The guide strip cooperates with the part placement slot to allow computer parts to slide along the preset trajectory during the blowing process to prevent offset or collision damage.

[0013] Preferably, the reciprocating screw is rotatably connected to the inner wall of the arm.

[0014] Preferably, a pad is provided on the top outer wall of the workbench, and a dividing plate is fixedly connected to the top outer wall of the pad by screws, and a rotating plate is fixedly connected to the top outer wall of the dividing plate by an output shaft, and the rotating plate is located below the lifting platform.

[0015] Preferably, through holes symmetrically distributed are formed on both sides of the outer wall of the top of the backing plate, and fastening knobs are penetratingly arranged on the inner walls of the through holes. The fastening knobs are screwed on the top outer wall of the top outer wall of the workbench.

[0016] Through the above solution, the indexing plate is fixed to the workbench through the backing plate, and the fastening knob passes through the through hole of the backing plate and is locked to ensure that the indexing plate has no displacement.

[0017] Preferably, workstations are fixedly connected to the top outer wall of the rotating disk through screws at equidistant intervals, and symmetrically distributed part placement grooves are formed on the top outer wall of the workstations. Computer parts are placed on the inner walls of the part placement grooves, and equidistantly distributed tapping holes are formed on the bottom inner walls of the computer parts. A tapping motor is installed on the top outer wall of the lifting table. There are three groups of the tapping motors, and each group of tapping motors includes two. The tapping motor includes a motor and a screw rod, and the screw rod is fixedly connected to the output shaft of the motor through a coupling. The size of the tapping hole is adapted to the size of the screw rod. Guide strips are arranged on both inner walls of the workstation, and the computer parts are slidably connected to the outer walls of the guide strips.

[0018] Through the above solution, six workstations are arranged on the top of the rotating disk. Guide strips are arranged in the part placement grooves of each workstation, and the computer parts can slide along the guide strips to the directly below of the tapping motors. Each group of tapping motors includes two motors, and the hole positions of two computer parts can be processed simultaneously, doubling the efficiency. The cooperation between the guide strips and the part placement grooves enables the computer parts to slide along the preset trajectory during the air blowing process, preventing deviation or collision damage.

[0019] Preferably, an air inlet main pipe for filling gas into the airbag is fixedly connected to one outer wall of the three-way joint. The air inlet main pipe is communicated with the three-way joint, the air inlet hose and the airbag, and the air inlet hose penetrates through the outer wall of the lifting table.

[0020] Through the above solution, the air inlet main pipe supplies gas to the symmetrically distributed air inlet hoses through the three-way joint.

[0021] Preferably, a suspension rod is fixedly connected to the outer wall of the air blowing port, and the outer wall of one end of the suspension rod away from the air blowing port is fixedly connected to the top outer wall of the lifting table.

[0022] Through the above solution, the suspension rod fixes the air blowing port to the lifting table, avoiding structural vibration caused by air flow backwash.

[0023] Preferably, the slider member includes a guide block and an internal thread piece. Among them, the internal thread piece is welded to the inner wall of the guide block, and the reciprocating lead screw is screwed on the inner wall of the internal thread piece. Chute grooves are formed on both outer walls of the armrest, and the guide block is slidably connected to the inner walls of the chute grooves.

[0024] With the above solution, the slider is engaged with the reciprocating lead screw through the internal thread piece, and the sliding grooves on both sides of the boom are matched with the guide blocks, restricting the slider to move only in the vertical direction and ensuring the accurate movement track of the lifting platform.

[0025] Preferably, a parts storage box is placed on the other side of the outer wall of the top of the workbench, and the connecting frame is located on one side of the parts storage box.

[0026] Preferably, the PLC control cabinet is fixedly connected to the inner wall of the top of the workbench by screws, and the PLC control cabinet is connected to the servo motor, the indexing plate and the tapping motor through signal lines.

[0027] With the above solution, the PLC control cabinet has built-in programming logic and receives the station signals of the indexing plate and the completion signals of the tapping motor in real time. After the tapping is completed, the PLC sends an instruction to reverse the servo motor, driving the lifting platform to move down and triggering the blowing; at the same time, the indexing plate rotates to switch to the next station.

[0028] The PLC control cabinet coordinates the actions of the servo motor, the indexing plate and the tapping motor through signal lines. The indexing plate drives the rotating plate to index and rotate, enabling each station to be aligned with the tapping position in turn; after the tapping is completed, the lifting platform moves down to trigger the blowing, and at the same time, the indexing plate automatically switches to the next station. The whole process does not require manual intervention, improving the processing efficiency.

[0029] The beneficial effects of the present invention are as follows:

[0030] 1. For the pneumatic tapping machine of the present invention, the airbag and the air baffle work together to achieve the precise opening and closing of the blowing port. When the lifting platform moves up, the blowing port is closely attached to the air baffle, and the airbag is continuously inflated and pressurized under the supply of the main air inlet pipe. When the lifting platform moves down and the blowing port is separated from the air baffle, the high-pressure gas in the airbag is instantly released, forming a directional high-pressure air flow, which can accurately blow the computer parts into the parts storage box. This mechanism only needs to provide high pressure during the blowing moment, and the air pump only needs to run at a low power usually, which can reduce the energy consumption;

[0031] 2. For the pneumatic tapping machine of the present invention, the air baffle is rigidly connected to the material baffle through the connecting rod to ensure the fitting accuracy between the blowing port and the air baffle. At the same time, the suspension rod fixes the blowing port to the lifting platform to avoid the structural vibration caused by the air flow backwash. The guide strip is matched with the parts placement groove, so that the computer parts slide along the preset track during the blowing process, preventing deviation or collision damage;

[0032] 3. For the pneumatic tapping machine of the present invention, the PLC control cabinet coordinates the actions of the servo motor, the indexing plate and the tapping motor through signal lines. The indexing plate drives the rotating plate to index and rotate, enabling each station to be aligned with the tapping position in turn; after the tapping is completed, the lifting platform moves down to trigger the blowing, and at the same time, the indexing plate automatically switches to the next station. The whole process does not require manual intervention, improving the processing efficiency. Description of the Drawings

[0033] Figure 1 Schematic three-dimensional view of the overall structure of a pneumatic tapping machine proposed by the present invention Figure 1 ;

[0034] Figure 2 Schematic three-dimensional view of the overall structure of a pneumatic tapping machine proposed by the present invention Figure 2 ;

[0035] Figure 3 Schematic view of the structure when the boom and slider parts of a pneumatic tapping machine proposed by the present invention are separated Figure 1 ;

[0036] Figure 4 Schematic view of the structure when the boom and slider parts of a pneumatic tapping machine proposed by the present invention are separated Figure 2 ;

[0037] Figure 5 Schematic three-dimensional view of the lifting table connection structure of a pneumatic tapping machine proposed by the present invention;

[0038] Figure 6 Front view of the lifting table connection structure of a pneumatic tapping machine proposed by the present invention;

[0039] Figure 7 Schematic view of the airbag connection structure of a pneumatic tapping machine proposed by the present invention;

[0040] Figure 8 Schematic view of the air baffle connection structure of a pneumatic tapping machine proposed by the present invention;

[0041] Figure 9 Schematic view of the indexing plate installation structure of a pneumatic tapping machine proposed by the present invention;

[0042] Figure 10 Schematic view of the structure of station 20 of a pneumatic tapping machine proposed by the present invention.

[0043] In the figure: 1, workbench; 2, boom; 3, servo motor; 4, reciprocating lead screw; 5, slider part; 51, guide block; 52, internal thread piece; 6, connecting seat; 7, lifting table; 8, three-way joint; 9, intake hose; 10, airbag; 11, air blowing port; 12, connecting frame; 13, baffle plate; 14, connecting rod; 15, air baffle; 16, backing plate; 17, indexing plate; 18, rotating disk; 19, fastening knob; 20, station 20; 21, part placement groove; 22, computer part; 23, tapping hole; 24, guide strip; 25, intake main pipe; 26, suspension rod; 27, chute; 28, tapping motor; 29, part storage box; 30, PLC control cabinet. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0045] Refer to Figures 1 - 10 , Embodiment 1, A pneumatic tapping machine, including a workbench 1, one side of the outer wall of the top of the workbench 1 is fixedly connected by bolts to an armrest 2, and a servo motor 3 is fixedly connected by screws to the outer wall of the top of the armrest 2. The output shaft of the servo motor 3 is fixedly connected by a coupling to a reciprocating lead screw 4. The reciprocating lead screw 4 is rotatably connected to the inner wall of the armrest 2. A slider member 5 is screwed onto the outer wall of the reciprocating lead screw 4. A connecting seat 6 is installed on one side outer wall of the slider member 5. A lifting table 7 is welded to the bottom outer wall of the connecting seat 6. A three-way joint 8 is fixedly connected by screws to the outer wall of the top of the lifting table 7. Symmetrically distributed intake hoses 9 are installed on one side outer wall of the three-way joint 8. One end outer wall of the intake hose 9 is fixedly connected to an airbag 10. Symmetrically distributed air blowing ports 11 are provided at the bottom of one side outer wall of the airbag 10.

[0046] The armrest 2 is fixedly bolted to one side of the top of the workbench 1, and the servo motor 3 is installed on the top of the armrest 2. The output shaft of the servo motor 3 drives the reciprocating lead screw 4 to rotate through a coupling. The intake hose 9 is made of high-pressure resistant rubber and penetrates through the lifting table 7 and then is connected to the airbag 10. The airbag 10 is made of elastic silica gel. After inflation, the expanded volume can reach three times that of the initial state, and it has strong pressure storage capacity. The air blowing port 11 is a nozzle, with high air flow concentration and can generate a directional impact force.

[0047] In this embodiment, through the cooperation of the airbag 10 and the air baffle 15, the precise opening and closing of the air blowing port 11 are realized. When the lifting table 7 moves upward, the air blowing port 11 is in close contact with the air baffle 15, and the airbag 10 continuously inflates and stores pressure under the supply of the intake main pipe 25. When the lifting table 7 moves downward until the air blowing port 11 disengages from the air baffle 15, the high-pressure gas in the airbag 10 is instantly released, forming a directional high-pressure air flow, which can accurately blow the computer parts 22 into the parts storage box 29. This mechanism only needs to provide high pressure during the air blowing moment, and the air pump only needs to operate at a low power usually, which can reduce energy consumption.

[0048] Embodiment 2, On the other side of the outer wall of the top of the workbench 1, a connecting frame 12 is fixedly connected by screws. A baffle plate 13 is welded to the outer wall of the top of the connecting frame 12. A connecting rod 14 is welded to one side outer wall of the baffle plate 13. A connecting rod 14 is welded to one end outer wall of the connecting rod 14. The air baffle 15 is located at one end of the air blowing port 11. A parts storage box 29 is placed on the other side of the outer wall of the top of the workbench 1. The connecting frame 12 is located on one side of the parts storage box 29.

[0049] The contact surface of the air baffle 15 is flush with the air blowing port 11 to ensure no gas leakage during fitting. When the lifting table 7 rises to the upper limit position of the reciprocating lead screw 4, the airbag 10 is continuously inflated; when the lifting table 7 moves downward, the gap between the air blowing port 11 and the air baffle 15 gradually increases, and the air pressure in the airbag 10 is instantaneously released through the air blowing port 11, which can effectively blow off the parts.

[0050] In this embodiment, the air baffle 15 is rigidly connected to the material baffle 13 through the connecting rod 14 to ensure the fitting accuracy between the air blowing port 11 and the air baffle 15. The guiding strip 24 cooperates with the part placement groove 21 to enable the computer part 22 to slide along a preset trajectory during the air blowing process, preventing deviation or collision damage.

[0051] Embodiment 3: A backing plate 16 is provided on the outer wall of the top of the workbench 1, and a dividing plate 17 is fixedly connected to the outer wall of the top of the backing plate 16 by screws. A rotating disk 18 is fixedly connected to the outer wall of the top of the dividing plate 17 through an output shaft, and the rotating disk 18 is located below the lifting table 7. A plurality of workstations 20 are fixedly connected to the outer wall of the top of the rotating disk 18 at equal distances, and symmetrically distributed part placement grooves 21 are provided on the outer wall of the top of the workstations 20. A computer part 22 is placed on the inner wall of the part placement groove 21, and equally spaced tapping holes 23 are provided on the inner wall of the bottom of the computer part 22. A tapping motor 28 is installed on the outer wall of the top of the lifting table 7. There are three groups of tapping motors 28, and each group of tapping motors 28 includes two. The tapping motor 28 includes a motor and a screw rod, and the screw rod is fixedly connected to the output shaft of the motor through a coupling. The size of the tapping hole 23 is adapted to the size of the screw rod. Guide strips 24 are provided on both inner walls of the workstation 20, and the computer part 22 is slidably connected to the outer wall of the guide strip 24.

[0052] Six workstations 20 are provided on the top of the rotating disk 18, and guide strips 24 are provided in the part placement grooves 21 of each workstation 20. The computer part 22 can slide along the guide strip 24 to directly below the tapping motor 28. Each group of tapping motors 28 contains two motors, which can simultaneously process the hole positions of two computer parts 22, doubling the efficiency.

[0053] In this embodiment, the PLC control cabinet 30 coordinates the actions of the servo motor 3, the dividing plate 17, and the tapping motor 28 through signal lines. The dividing plate 17 drives the rotating disk 18 to index and rotate, enabling each workstation 20 to be aligned with the tapping position in sequence; after tapping is completed, the lifting table 7 moves downward to trigger air blowing, and at the same time, the dividing plate 17 automatically switches to the next workstation 20. The entire process requires no manual intervention, improving the processing efficiency.

[0054] Through holes are symmetrically distributed on both sides of the outer wall of the top of the backing plate 16, and fastening knobs 19 are penetrated through the inner walls of the through holes and screwed onto the outer wall of the top of the workbench 1.

[0055] Through the above solution, the indexing plate 17 is fixed to the workbench 1 through the backing plate 16, and the fastening knob 19 passes through the through hole of the backing plate 16 and is locked to ensure that the indexing plate 17 has no displacement.

[0056] On one outer wall of the tee joint 8, an intake main pipe 25 for filling gas into the airbag 10 is fixedly connected. The intake main pipe 25 is interconnected with the tee joint 8, the intake hose 9, and the airbag 10, and the intake hose 9 is disposed through the outer wall of the lifting table 7.

[0057] Through the above solution, the intake main pipe 25 supplies gas to the symmetrically distributed intake hoses 9 through the tee joint 8.

[0058] A suspension rod 26 is fixedly connected to the outer wall of the air outlet 11, and one end outer wall of the suspension rod 26 away from the air outlet 11 is fixedly connected to the top outer wall of the lifting table 7.

[0059] Through the above solution, the suspension rod 26 fixes the air outlet 11 to the lifting table 7 to prevent the structure from shaking due to the backflow of air.

[0060] The slider member 5 includes a guide block 51 and an internal thread piece 52. Among them, the internal thread piece 52 is welded to the inner wall of the guide block 51, and the reciprocating lead screw 4 is screwed to the inner wall of the internal thread piece 52. Chute grooves 27 are provided on both outer walls of the boom 2, and the guide block 51 is slidably connected to the inner wall of the chute groove 27.

[0061] Through the above solution, the slider member 5 meshes with the reciprocating lead screw 4 through the internal thread piece 52, and the chute grooves 27 on both sides of the boom 2 cooperate with the guide block 51 to limit the slider member 5 to move only in the vertical direction, ensuring the accurate movement track of the lifting table 7.

[0062] The inner wall of the top of the workbench 1 is fixedly connected with a PLC control cabinet 30 through screws, and the PLC control cabinet 30 is connected to the servo motor 3, the indexing plate 17, and the tapping motor 28 through signal lines.

[0063] Through the above solution, the PLC control cabinet 30 has a built-in programming logic to receive the station 20 signal of the indexing plate 17 and the completion signal of the tapping motor 28 in real time. When the tapping is completed, the PLC sends an instruction to reverse the servo motor 3, driving the lifting table 7 to move down and trigger the blowing; at the same time, the indexing plate 17 rotates to switch to the next station 20.

[0064] Working principle:

[0065] The working process of this pneumatic tapping machine can be divided into the following four stages:

[0066] 1. Tapping preparation stage:

[0067] The operator places the computer part 22 into the part placement groove 21 of the work station 20, and the PLC control cabinet 30 starts the indexing plate 17 to rotate, aligning the first work station 20 under the tapping motor 28. The servo motor 3 rotates forward, driving the reciprocating lead screw 4 to drive the lifting table 7 to move downward until the screw of the tapping motor 28 aligns with the tapping hole 23.

[0068] 2. Tapping execution stage:

[0069] The tapping motor 28 starts, and the screw is screwed into the tapping hole 23 to complete the thread processing. At the same time, the three-way joint 8 slowly inflates the airbag 10 through the intake main pipe 25, increasing the internal air pressure of the airbag 10.

[0070] 3. Blowing and blanking stage:

[0071] After tapping is completed, the servo motor 3 rotates in reverse, and the lifting table 7 moves upward so that the air blowing port 11 fits tightly with the air baffle 15, and the airbag 10 continues to inflate and store pressure. When the lifting table 7 rises to the upper limit position, the lifting table 7 moves downward again, driving the lifting table 7 to move downward quickly, the air blowing port 11 disengages from the air baffle 15, and the high-pressure gas in the airbag 10 is instantly released, blowing the computer part 22 into the part storage box 29.

[0072] 4. Work station 20 switching and cycle:

[0073] After blowing is completed, the PLC control cabinet 30 sends a signal, and the indexing plate 17 drives the rotating disk 18 to rotate, aligning the next work station 20 with the tapping position. At the same time, the air pump switches to the low-power mode to prepare for inflating in the next cycle. The above process is cycled until all work stations 20 are processed.

[0074] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A pneumatic tapping machine, comprising a workbench (1), characterized in that, On one side of the outer wall of the top of the workbench (1), a boom (2) is fixedly connected by bolts, and a servo motor (3) is fixedly connected to the outer wall of the top of the boom (2) by screws. The output shaft of the servo motor (3) is fixedly connected to a reciprocating lead screw (4) through a coupling. A slider member (5) is screwed on the outer wall of the reciprocating lead screw (4), and a connecting seat (6) is installed on one side outer wall of the slider member (5). A lifting platform (7) is welded to the bottom outer wall of the connecting seat (6), and a three-way joint (8) is fixedly connected to the outer wall of the top of the lifting platform (7) by screws. Symmetrically distributed air inlet hoses (9) are installed on one side outer wall of the three-way joint (8), and one end outer wall of the air inlet hose (9) is fixedly connected to an air bag (10). Symmetrically distributed air blowing ports (11) are arranged at the bottom of one side outer wall of the air bag (10); On the other side of the outer wall of the top of the workbench (1), a connecting frame (12) is fixedly connected by screws, and a baffle plate (13) is welded to the outer wall of the top of the connecting frame (12). A connecting rod (14) is welded to one side outer wall of the baffle plate (13), and a gas baffle (15) is welded to one end outer wall of the connecting rod (14), and the gas baffle (15) is located at one end of the air blowing port (11).

2. The pneumatic tapping machine according to claim 1, characterized in that, The reciprocating lead screw (4) is rotatably connected to the inner wall of the boom (2).

3. The pneumatic tapping machine according to claim 1, wherein A backing plate (16) is arranged on the outer wall of the top of the workbench (1), and an indexing plate (17) is fixedly connected to the outer wall of the top of the backing plate (16) by screws. A rotating disk (18) is fixedly connected to the outer wall of the top of the indexing plate (17) through an output shaft, and the rotating disk (18) is located below the lifting platform (7).

4. The pneumatic tapping machine according to claim 3, characterized in that, Symmetrically distributed through holes are formed on both sides of the outer wall of the top of the backing plate (16), and fastening knobs (19) are arranged through the inner walls of the through holes, and the fastening knobs (19) are screwed on the outer wall of the top of the outer wall of the top of the workbench (1).

5. The pneumatic tapping machine according to claim 3, characterized in that Equidistantly distributed workstations 20 (20) are fixedly connected to the outer wall of the top of the rotating disk (18), and symmetrically distributed part placement grooves (21) are formed on the outer wall of the top of the workstations 20 (20). Computer parts (22) are placed on the inner walls of the part placement grooves (21), and equidistantly distributed tapping holes (23) are formed on the inner wall of the bottom of the computer parts (22). A tapping motor (28) is installed on the outer wall of the top of the lifting platform (7). There are three groups of the tapping motors (28), and each group of the tapping motors (28) includes two. The tapping motor (28) includes a motor and a screw rod, and the screw rod is fixedly connected to the output shaft of the motor through a coupling. The size of the tapping hole (23) is adapted to the size of the screw rod. Guide strips (24) are arranged on both inner walls of the workstations 20 (20), and the computer parts (22) are slidably connected to the outer walls of the guide strips (24).

6. The pneumatic tapping machine according to claim 1, characterized in that, An air inlet main pipe (25) for filling gas into the air bag (10) is fixedly connected to one side outer wall of the three-way joint (8). The air inlet main pipe (25) is communicated with the three-way joint (8), the air inlet hose (9) and the air bag (10), and the air inlet hose (9) is arranged through the outer wall of the lifting platform (7).

7. A pneumatic tapping machine according to claim 1, characterized in that, A suspension rod (26) is fixedly connected to the outer wall of the air blowing port (11), and one end of the suspension rod (26) far from the air blowing port (11) is fixedly connected to the top outer wall of the lifting platform (7).

8. A pneumatic tapping machine according to claim 1, wherein, The slider member (5) includes a guiding block (51) and an internally threaded piece (52). Among them, the internally threaded piece (52) is welded to the inner wall of the guiding block (51), and the reciprocating lead screw (4) is screwed to the inner wall of the internally threaded piece (52). Sliding grooves (27) are formed on the outer walls on both sides of the boom (2), and the guiding block (51) is slidably connected to the inner wall of the sliding groove (27).

9. The pneumatic tapping machine according to claim 1, wherein A parts storage box (29) is placed on the other side of the top outer wall of the workbench (1), and the connecting frame (12) is located on one side of the parts storage box (29).

10. The pneumatic tapping machine according to claim 1, characterized in that, A PLC control cabinet (30) is fixedly connected to the top inner wall of the workbench (1) by screws, and the PLC control cabinet (30) is connected to the servo motor (3), the indexing plate (17) and the tapping motor (28) through signal lines respectively.

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