CN118752008A - An automatic tapping machine for copper valve processing - Google Patents

Abstract

The present invention relates to the field of valve processing technology, and specifically discloses an automatic tapping machine for copper valve processing, including a workbench, a mounting groove is provided on the upper end surface of the workbench, a clamping seat is rotatably connected to the inside of the mounting groove through a rotating shaft, a clamping mechanism and a straightening mechanism are arranged on the upper end of the clamping seat, the clamping mechanism is used to fix the valve body, the straightening mechanism is designed to correct the position of the valve body, and the clamping mechanism and the straightening mechanism are connected through a transmission mechanism. The present invention can perform tapping operations on a direct valve body through the mutual cooperation of the clamping mechanism, the straightening mechanism and the transmission mechanism; when the angled valve body is clamped and fixed, the third motor and the positioning drive mechanism need to cooperate with each other, so as to further achieve the effect of tapping the angled valve body, thereby solving the problem that the corresponding tapping equipment or fixture needs to be replaced when tapping the angled valve body, so that the replacement not only increases the equipment cost of the enterprise, but also the process of manually replacing the fixture will also reduce the production efficiency.

Description

An automatic tapping machine for copper valve processing

Technical Field

The invention belongs to the technical field of valve processing, and in particular relates to an automatic tapping machine for copper valve processing.

Background Art

In the field of industrial valve manufacturing, valves are usually composed of two parts: a valve body and a valve cover. The valve body is provided with threaded holes, while the valve cover is provided with corresponding through holes. The connection between these two parts is usually fastened by bolts and nuts. The processing of bolt holes includes multiple fine processes such as drilling, tapping and chamfering.

The tapping task is usually undertaken by a radial drilling machine, and this process requires special personnel to operate. In order to ensure the accuracy of the tapping process, the actuator end of the valve body needs to be kept perpendicular to the tap during tapping. This situation is most common in valve bodies that form a right angle between the actuator end and the connection end.

However, for valve bodies where the angle between the actuator end and the connection end is not a right angle, the corresponding tapping equipment or fixture needs to be replaced during tapping to ensure verticality. Such replacement not only increases the company's equipment cost, but the process of manually replacing the fixture will also reduce production efficiency.

Summary of the invention

The purpose of the present invention is to provide an automatic tapping machine for copper valve processing, so as to solve the problem in the prior art that when tapping an angled valve body, the corresponding tapping equipment or fixture needs to be replaced, so that the replacement not only increases the equipment cost of the enterprise, but also the process of manually replacing the fixture also reduces production efficiency.

To achieve the above object, the present invention provides the following technical solutions:

An automatic tapping machine for copper valve processing comprises a workbench, an installation groove is provided on the upper end surface of the workbench, a clamping seat is rotatably connected to the inside of the installation groove via a rotating shaft, a clamping mechanism and a straightening mechanism are arranged on the upper end of the clamping seat, the clamping mechanism is used to fix the valve body, and the straightening mechanism is designed to correct the position of the valve body, the clamping mechanism and the straightening mechanism are connected through a transmission mechanism, the transmission mechanism is arranged on the right side inside the clamping seat, a tapping mechanism is arranged directly on the clamping seat, a support frame is fixedly connected to the upper end of the workbench, the support frame is arranged in two groups and is located on both sides of the clamping seat, a positioning drive mechanism is arranged between the two groups of the support frames, and the positioning drive mechanism is used to drive the tapping mechanism to move in the horizontal direction.

Preferably: the clamping mechanism includes a bidirectional threaded rod and a clamping plate, limit grooves are provided on the left and right sides of the upper end of the clamping seat, a bidirectional threaded rod is rotatably connected inside the clamping seat, a fourth motor is fixedly connected to the left end of the clamping seat, an output shaft end of the fourth motor is fixedly connected to the left end of the bidirectional threaded rod, moving blocks are threadedly connected to the side walls on both sides of the bidirectional threaded rod, the moving blocks are located inside the limit grooves and are slidably connected thereto, and a clamping plate is fixedly connected to the upper end of the moving block.

Preferably: the straightening mechanism includes a straightening plate and a buffer component, the clamping seat is rotatably connected to a rotating shaft, the rotating shaft is provided with two groups and is located on the front and rear sides of the bidirectional threaded rod, the side wall of the rotating shaft is provided with a buffer component, the buffer component includes a buffer sleeve and a spiral spring, the side wall of the rotating shaft is rotatably connected to the buffer sleeve, the outer wall of the buffer sleeve is fixedly connected to a connecting rod, and the end of the connecting rod away from the buffer sleeve is fixedly connected to the straightening plate.

Preferably, one end of the straightening plate away from the connecting rod is rotatably connected to a roller.

Preferably, a volute spring is fixedly connected to the inner wall of the buffer sleeve, and the inner wall of the volute spring is fixedly connected to the side wall of the rotating shaft.

Preferably: the transmission mechanism includes a rotating rod and a worm, the transmission rod is rotatably connected inside the clamping seat, the side wall of the transmission rod is fixedly connected to the first bevel gear and the worm, the worm is provided with two groups and is located on both sides of the first bevel gear, the thread at the upper end of the worm is symmetrical about the bidirectional threaded rod, the side wall of the first bevel gear is meshed with the second bevel gear, the left end of the second bevel gear is fixedly connected to the right end of the bidirectional threaded rod, the side wall of the worm is meshed with a worm wheel, and the inner wall of the worm wheel is fixedly connected to the side wall of the rotating shaft.

Preferably: the positioning drive mechanism includes a threaded rod and a limit rod, the limit rod is fixedly connected between the support frames, the side wall of the limit rod is slidably connected with a mounting block, the threaded rod is rotatably connected between the support frames, the threaded rod passes through the mounting block and is threadedly connected thereto, the right end of the support frame located on the right side of the workbench is fixedly connected with a first motor, and the output shaft end of the first motor is fixedly connected to the left end of the threaded rod.

Preferably: the tapping mechanism includes a second motor and a tap, the lower end of the mounting block is fixedly connected to a hydraulic cylinder, the output shaft end of the hydraulic cylinder is fixedly connected to the second motor, the lower end of the second motor is fixedly connected to a gear box, the lower end of the gear box is equidistantly rotatably connected to a tap, the inside of the gear box is rotatably connected to a first gear and a second gear, the second gear is equidistantly arranged in multiple groups and distributed around the first gear, the first gear and the second gear are meshed with each other, the upper end of the tap is fixedly connected to the lower end of the second gear, and the output shaft end of the second motor passes through the inside of the gear box and is fixedly connected to the upper end of the first gear.

Preferably, the side wall of the gear box is slidably connected with a positioning rod, the side wall of the gear box is provided with a cooling pipe, and the side wall of the cooling pipe is equidistantly provided with nozzles.

Preferably, a third motor is fixedly connected to the rear end of the workbench, and an output shaft end of the third motor is fixedly connected to the rear end of the rotating shaft.

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

1. The present invention can drive the end of the actuator in the valve body upward and fix it through the cooperation of the clamping mechanism, the straightening mechanism and the transmission mechanism. In this state, the tapping mechanism is started to effectively realize the tapping operation on the direct valve body.

2. The present invention can drive the clamping seat to rotate by starting the third motor. The rotating clamping seat can correct the clamped valve body, so that the end of the actuator in the angled valve body can face upward, and then cooperate with the positioning drive mechanism to drive the tap in the tapping mechanism to move the actuator end in the angled valve body to the square, and then start the tapping mechanism, so as to further achieve the effect of tapping the angled valve body.

3. The present invention provides a buffer component in the straightening mechanism, so that when the clamping mechanism is in operation, the straightening mechanism can reach its predetermined position first, and then the normal operation of the clamping mechanism is maintained by the buffer component.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic diagram of the right side cross-sectional plan structure of the workbench of the present invention;

FIG3 is a schematic diagram of the front cross-sectional structure of the clamping seat of the present invention;

FIG4 is a schematic diagram of a half-section structure of a clamping seat according to the present invention from the right side;

FIG5 is a schematic cross-sectional view of the buffer component of the present invention;

FIG6 is a schematic diagram of a cross-sectional structure of a clamping seat according to the present invention from the right side;

FIG7 is a schematic diagram of the front view of the positioning drive mechanism of the present invention;

FIG8 is a schematic diagram of the cross-sectional structure of the gearbox of the present invention.

In the figure: 1, workbench; 11, support frame; 12, mounting groove; 2, positioning drive mechanism; 21, threaded rod; 22, limit rod; 23, first motor; 24, mounting block; 3, tapping mechanism; 31, hydraulic cylinder; 32, second motor; 33, gear box; 331, first gear; 332, second gear; 34, cooling pipe; 35, positioning rod; 36, tap; 4, clamping seat; 41, third motor; 42 , limit groove; 5, clamping mechanism; 51, bidirectional threaded rod; 52, moving block; 53, clamping plate; 54, fourth motor; 6, straightening mechanism; 61, rotating shaft; 62, buffer component; 621, buffer sleeve; 622, scroll spring; 63, connecting rod; 64, straightening plate; 65, roller; 7, transmission mechanism; 71, transmission rod; 72, first bevel gear; 73, second bevel gear; 74, worm; 75, worm wheel.

DETAILED DESCRIPTION

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.

Referring to Figures 1 to 7, the present invention provides an automatic tapping machine for copper valve processing, including a workbench 1, an installation groove 12 is provided on the upper end surface of the workbench 1, a clamping seat 4 is rotatably connected to the inside of the installation groove 12 through a rotating shaft, a clamping mechanism 5 and a straightening mechanism 6 are arranged on the upper end of the clamping seat 4, the clamping mechanism 5 is used to fix the valve body, the straightening mechanism 6 is designed to correct the position of the valve body, the clamping mechanism 5 and the straightening mechanism 6 are connected through a transmission mechanism 7, the transmission mechanism 7 is arranged on the right side of the clamping seat 4, and a tapping mechanism is arranged directly on the clamping seat 4 3. A support frame 11 is fixedly connected to the upper end of the workbench 1. Two groups of support frames 11 are provided and are located on both sides of the clamping seat 4. A positioning drive mechanism 2 is provided between the two groups of support frames 11. The positioning drive mechanism 2 is used to drive the tapping mechanism 3 to move in the horizontal direction. Through the cooperation of the clamping mechanism 5, the straightening mechanism 6 and the transmission mechanism 7, the direct valve body can be tapped; when the angled valve body is clamped and fixed, the third motor 41 and the positioning drive mechanism 2 need to cooperate with each other, so as to further achieve the effect of tapping the angled valve body.

In a further embodiment, referring to Figures 1-3, the clamping mechanism 5 includes a bidirectional threaded rod 51 and a clamping plate 53. Limiting grooves 42 are provided on the left and right sides of the upper end of the clamping seat 4. The bidirectional threaded rod 51 is rotatably connected inside the clamping seat 4. A fourth motor 54 is fixedly connected to the left end of the clamping seat 4. The output shaft end of the fourth motor 54 is fixedly connected to the left end of the bidirectional threaded rod 51. Moving blocks 52 are threadedly connected to the side walls on both sides of the bidirectional threaded rod 51. The moving blocks 52 are located inside the limiting grooves 42 and are slidably connected thereto. The upper end of the moving block 52 is fixedly connected to the clamping plate 53.

In this embodiment, the fourth motor 54 is started to drive the bidirectional threaded rod 51 to rotate, and the rotating bidirectional threaded rod 51 drives the moving block 52 to move, and the movement of the moving block 52 drives the clamping plate 53 to move. Since the thread directions in the bidirectional threaded rod 51 are opposite, the clamping plate 53 moves toward the center point of the clamping seat 4, and the moving clamping plate 53 can clamp the valve body.

In a further embodiment, referring to Figures 4-5, the straightening mechanism 6 includes a straightening plate 64 and a buffer component 62, the clamping seat 4 is rotatably connected to the inside of the rotating shaft 61, the rotating shaft 61 is provided with two groups and is located on the front and rear sides of the bidirectional threaded rod 51, the side wall of the rotating shaft 61 is provided with a buffer component 62, the buffer component 62 includes a buffer sleeve 621 and a volute spring 622, the side wall of the rotating shaft 61 is rotatably connected to the buffer sleeve 621, the outer wall of the buffer sleeve 621 is fixedly connected to a connecting rod 63, the end of the connecting rod 63 away from the buffer sleeve is fixedly connected to the straightening plate 64, the end of the straightening plate 64 away from the connecting rod 63 is rotatably connected to the roller 65, the inner wall of the buffer sleeve 621 is fixedly connected to the volute spring 622, and the inner wall of the volute spring 622 is fixedly connected to the side wall of the rotating shaft 61.

In this embodiment, the rotation of the rotating shaft 61 drives the volute spring 622 to rotate, the rotation of the volute spring 622 drives the buffer sleeve 621 to rotate, the rotation of the buffer sleeve 621 drives the connecting rod 63 to move, the movement of the connecting rod 63 drives the straightening plate 64 to move, and the moving straightening plate 64 can drive the actuator end of the valve body to move, so that the actuator end of the valve body can face upward, thereby achieving the effect of straightening the valve body; because the straightening operation is performed before the clamping and fixing operation, the roller 65 is set, so that when the connecting end on one side of the valve body contacts the clamping plate 53 in advance, the valve body can be pushed smoothly, so that the clamping plates 53 on both sides can act on the connecting end of the valve body.

In a further embodiment, referring to Figure 6, the transmission mechanism 7 includes a rotating rod and a worm 74, the clamping seat 4 is internally rotatably connected to the transmission rod 71, the side wall of the transmission rod 71 is fixedly connected to the first bevel gear 72 and the worm 74, the worm 74 is provided with two groups and is located on both sides of the first bevel gear 72, the thread at the upper end of the worm 74 is symmetrical about the bidirectional threaded rod 51, the side wall of the first bevel gear 72 is meshed with the second bevel gear 73, the left end of the second bevel gear 73 is fixedly connected to the right end of the bidirectional threaded rod 51, the side wall of the worm 74 is meshed with a worm wheel 75, and the inner wall of the worm wheel 75 is fixedly connected to the side wall of the rotating shaft 61.

In this embodiment, the second bevel gear 73 is driven to rotate by the rotation of the bidirectional threaded rod 51, the second bevel gear 73 is driven to rotate by the rotation of the first bevel gear 72, the first bevel gear 72 is driven to rotate the transmission rod 71, the transmission rod 71 is driven to rotate by the rotation of the worm 74, the worm 74 is driven to rotate by the rotation of the worm wheel 75, the worm wheel 75 is driven to rotate the rotating shaft 61, thereby providing power for the rotation of the rotating shaft 61.

In a further embodiment, referring to Figure 7, the positioning drive mechanism 2 includes a threaded rod 21 and a limit rod 22, the limit rod 22 is fixedly connected between the support frames 11, the side wall of the limit rod 22 is slidably connected with a mounting block 24, the threaded rod 21 is rotatably connected between the support frames 11, the threaded rod 21 penetrates the mounting block 24 and is threadedly connected thereto, the right end of the support frame 11 located on the right side of the workbench 1 is fixedly connected with a first motor 23, and the output shaft end of the first motor 23 is fixedly connected to the left end of the threaded rod 21.

In this embodiment, the first motor 23 is started to drive the threaded rod 21 to rotate, and the rotation of the threaded rod 21 drives the mounting block 24 to move, thereby providing power for the movement of the mounting block 24.

In a further embodiment, referring to Figures 7-8, the tapping mechanism 3 includes a second motor 32 and a tap 36, the lower end of the mounting block 24 is fixedly connected to the hydraulic cylinder 31, the output shaft end of the hydraulic cylinder 31 is fixedly connected to the second motor 32, the lower end of the second motor 32 is fixedly connected to the gear box 33, the lower end of the gear box 33 is equidistantly rotatably connected to the tap 36, the inside of the gear box 33 is rotatably connected to the first gear 331 and the second gear 332, the second gear 332 is equidistantly arranged in multiple groups and distributed around the first gear 331, the first gear 331 and the second gear 332 are meshed with each other, the upper end of the tap 36 is fixedly connected to the lower end of the second gear 332, the output shaft end of the second motor 32 passes through the inside of the gear box 33 and is fixedly connected to the upper end of the first gear 331.

In this embodiment, the hydraulic cylinder 31 is started to drive the second motor 32 to move downward, so that the tap 36 is close to the valve body, and then the second motor 32 is started to drive the first gear 331 inside the gear box 33 to rotate. The rotation of the first gear 331 drives the second gear 332 to rotate, and the rotation of the second gear 332 drives the tap 36 to rotate. Rotating the tap 36 can tap the valve body.

In a further embodiment, referring to FIG. 7-FIG 8 , a positioning rod 35 is slidably connected to the side wall of the gear box 33 , a cooling pipe 34 is provided on the side wall of the gear box 33 , and nozzles are equidistantly provided on the side wall of the cooling pipe 34 .

In this embodiment, a slidable positioning rod 35 is provided on the side wall of the gear box 33 so that the lower end of the positioning rod 35 can contact the side wall of the valve body during the horizontal movement of the second motor 32. At this time, the tap 36 moves to the top of the actuator end of the valve body, thereby achieving the positioning effect. The cooling pipe 34 and the nozzle are provided so that the cooling water sprayed from the nozzle can cool the tap 36 in operation, thereby extending the service life of the tap 36.

In a further embodiment, referring to FIG. 8 , a third motor 41 is fixedly connected to the rear end of the workbench 1 , and an output shaft end of the third motor 41 is fixedly connected to the rear end of the rotating shaft.

In this embodiment, the third motor 41 is started to drive the clamping seat 4 to rotate, and the rotating clamping seat 4 can adjust the fixedly clamped valve body, thereby achieving the effect of adjusting the direction of the end of the valve body actuator.

The working principle of the present invention is as follows: by placing the valve body on the clamping plate, and then inputting the bevel angle data of the valve body into the external controller, the controller can control the fourth motor 54 to start, thereby driving the bidirectional threaded rod 51 to rotate, thereby driving the clamping plate 53 to move toward the valve body, and at the same time, through the transmission rod 71, the first bevel gear 72, the second bevel gear 73, the worm 74 and the worm wheel 75, the shaft 61 is driven to rotate, the rotation of the shaft 61 drives the vortex spring 622 to rotate, and the rotation of the vortex spring 622 drives the buffer sleeve 621 to rotate, and the buffer The rotation of sleeve 621 drives connecting rod 63 to move, and the movement of connecting rod 63 drives straightening plate 64 to move. The moving straightening plate 64 can drive the actuator end of the valve body to move, so that the actuator end of the valve body can face upward, thereby achieving the effect of straightening the valve body. Since straightening plate 64 reaches the predetermined position before clamping plate 53, the bidirectional threaded rod 51 continues to rotate at this time, so that it can drive volute spring 622 to contract inward, thereby achieving a buffering effect, ensuring that clamping plate 53 can continue to move, thereby achieving the effect of clamping and fixing the valve body.

Then the controller controls the third motor 41 to rotate, driving the clamping seat 4 to rotate, so that the rotation angle of the clamping seat 4 moves with the bevel angle of the valve body, ensuring that the actuator end of the clamped valve body can face upward, facilitating subsequent tapping operations.

Then the controller controls the first motor 23 to drive the threaded rod 21 to rotate, and the rotation of the threaded rod 21 drives the mounting block 24 to move, and the movable mounting block 24 drives the positioning rod 35 to move, so that the positioning rod 35 contacts the side wall of the valve body, so that the tap 36 moves to the top of the actuator end of the valve body, and then starts the hydraulic cylinder 31 and the second motor 32 through the controller, so that the valve body can be automatically tapped, thereby solving the problem of needing to replace the corresponding tapping equipment or fixture when tapping the angled valve body, so that the replacement not only increases the equipment cost of the enterprise, but also the process of manually replacing the fixture will also reduce the production efficiency.

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 (10)

1. The utility model provides a copper valve processing is with automatic tapping machine, includes workstation (1), its characterized in that, mounting groove (12) have been seted up to workstation (1) up end, mounting groove (12) are inside to be connected with grip slipper (4) through the axis of rotation, grip slipper (4) upper end is provided with fixture (5) and righting mechanism (6), fixture (5) are used for fixed valve body, righting mechanism (6) design is used for correcting the position of valve body, be connected through drive mechanism (7) between fixture (5) and righting mechanism (6), drive mechanism (7) set up on the inside right side of grip slipper (4), be provided with tapping mechanism (3) on grip slipper (4) directly over, workstation (1) upper end fixedly connected with support frame (11), support frame (11) are provided with two sets of and are located grip slipper (4) both sides, two sets of be provided with location actuating mechanism (2) between support frame (11), location actuating mechanism (2) are used for actuating mechanism (3) to move along the horizontal direction.

2. The automatic tapping machine for copper valve machining according to claim 1, wherein: clamping mechanism (5) are including two-way threaded rod (51) and splint (53), spacing groove (42) have all been seted up to the left and right sides of grip slipper (4) upper end, grip slipper (4) inside rotation is connected with two-way threaded rod (51), grip slipper (4) left end fixedly connected with fourth motor (54), fourth motor (54) output shaft end and two-way threaded rod (51) left end fixed connection, lateral wall threaded connection of two sides of two-way threaded rod (51) has movable block (52), movable block (52) are located spacing groove (42) inside and sliding connection with it, movable block (52) upper end fixedly connected with splint (53).

3. The automatic tapping machine for copper valve machining according to claim 1, wherein: the centering mechanism (6) comprises a centering plate (64) and a buffering component (62), a rotating shaft (61) is connected to the inside rotation of the clamping seat (4), two groups of rotating shafts (61) are arranged on the front side and the rear side of the bidirectional threaded rod (51), the buffering component (62) is arranged on the side wall of the rotating shaft (61), the buffering component (62) comprises a buffering sleeve (621) and a spiral spring (622), the buffering sleeve (621) is connected to the side wall of the rotating shaft (61) in a rotating mode, a connecting rod (63) is fixedly connected to the outer wall of the buffering sleeve (621), and one end of the connecting rod (63) away from the sleeve buffering sleeve is fixedly connected with the centering plate (64).

4. A machine for automatically tapping copper valves according to claim 3, wherein: one end of the righting plate (64) far away from the connecting rod (63) is rotatably connected with a roller (65).

5. A machine for automatically tapping copper valves according to claim 3, wherein: the inner wall of the buffer sleeve (621) is fixedly connected with a scroll spring (622), and the inner wall of the scroll spring (622) is fixedly connected with the side wall of the rotating shaft (61).

6. The automatic tapping machine for copper valve machining according to claim 1, wherein: the transmission mechanism (7) comprises a rotating rod and a worm (74), the inside of the clamping seat (4) is rotationally connected with the transmission rod (71), a first bevel gear (72) and the worm (74) are fixedly connected to the side wall of the transmission rod (71), the worm (74) is provided with two groups of threads which are positioned on two sides of the first bevel gear (72), threads at the upper end of the worm (74) are symmetrical about the bidirectional threaded rod (51), a second bevel gear (73) is meshed with the side wall of the first bevel gear (72), the left end of the second bevel gear (73) is fixedly connected with the right end of the bidirectional threaded rod (51), a worm wheel (75) is meshed with the side wall of the worm wheel (74), and the inner wall of the worm wheel (75) is fixedly connected with the side wall of the rotating shaft (61).

7. The automatic tapping machine for copper valve machining according to claim 1, wherein: the positioning driving mechanism (2) comprises a threaded rod (21) and a limiting rod (22), the limiting rod (22) is fixedly connected between the supporting frames (11), the side wall of the limiting rod (22) is slidably connected with a mounting block (24), the threaded rod (21) is rotatably connected between the supporting frames (11), the threaded rod (21) penetrates through the mounting block (24) and is in threaded connection with the mounting block, the right end of the supporting frame (11) on the right side of the workbench (1) is fixedly connected with a first motor (23), and the output shaft end of the first motor (23) is fixedly connected with the left end of the threaded rod (21).

8. The automatic tapping machine for copper valve machining according to claim 7, wherein: the tapping mechanism (3) comprises a second motor (32) and a screw tap (36), the lower end of the mounting block (24) is fixedly connected with a hydraulic cylinder (31), the output shaft end of the hydraulic cylinder (31) is fixedly connected with a second motor (32), the lower end of the second motor (32) is fixedly connected with a gear box (33), the lower end of the gear box (33) is rotationally connected with the screw tap (36) at equal intervals, a first gear (331) and a second gear (332) are rotationally connected inside the gear box (33), the second gears (332) are equidistantly provided with a plurality of groups and are distributed around the first gear (331), the first gear (331) and the second gear (332) are meshed with each other, the upper end of the screw tap (36) is fixedly connected with the lower end of the second gear (332), and the output shaft end of the second motor (32) penetrates through the gear box (33) and is fixedly connected with the upper end of the first gear (331).

9. The automatic tapping machine for copper valve machining according to claim 8, wherein: the side wall of the gear box (33) is slidably connected with a positioning rod (35), the side wall of the gear box (33) is provided with a cooling pipe (34), and spray heads are arranged on the side wall of the cooling pipe (34) at equal intervals.

10. The automatic tapping machine for copper valve machining according to claim 8, wherein: the workbench (1) is fixedly connected with a third motor (41), and the output shaft end of the third motor (41) is fixedly connected with the rear end of the rotating shaft.