A female thread processing device for female thread copper pipe production

Abstract

The application relates to the technical field of thread processing, and discloses an internal thread processing device for internal thread copper pipe production, which comprises an equipment rack, a horizontally arranged first motor is installed on the equipment rack, a tapping tool bit is installed on the first motor, and the device further comprises: a horizontally arranged roller which is rotatably installed on the equipment rack; a plurality of storage grooves are circumferentially arranged on the outer wall of the roller, and the shaft end of the roller is sequentially provided with a feeding station, a tapping station and a discharging station; the tapping tool bit is located at the tapping station; a clamping assembly is arranged on the equipment rack and located at the tapping station; and a vertically arranged rectangular vertical pipe is fixedly connected to the equipment rack. Through the arrangement of the roller, the U-shaped groove and the arc-shaped plate, automatic fixing and dismounting of the copper pipe are realized, manual operation is not needed, the labor intensity of the operators is effectively reduced, and the copper chips in the copper pipe can be automatically removed.

Description

Technical Field

[0001] This invention relates to the field of thread processing technology, specifically to an internal thread processing device for producing internally threaded copper tubes. Background Technology

[0002] During the production of copper tubes, if internal threads need to be formed on their inner walls, metal cutting machine tools are typically used to perform cutting or tapping. Specifically, a machine tool with an internal threading tool can be used for single-blade cutting, or a tapping machine or a machining center with tapping function can be used to form threads on the end or inside of the copper tube using a tap. Because copper is relatively soft and easily deformed, the machining process places high demands on the machine tool's speed, feed rate, and cooling and lubrication conditions to ensure the accuracy and surface quality of the threads. Therefore, in modern machining, laser measuring instruments and calibration standard instruments are often integrated to calibrate the machine tool's status, making high-quality automated machining possible.

[0003] However, most existing machine tools still use manual methods to fix and remove copper tubes when machining internal threads. Operators need to manually clamp the copper tubes, adjust the clamping force and tighten them one by one. After the machining is completed, the workpieces are manually removed. This method of relying on manual loading and unloading increases auxiliary time, and the frequent loading and unloading operations will significantly reduce the overall processing efficiency and increase the labor intensity of the operators. Summary of the Invention

[0004] This invention provides an internal thread processing device for producing internally threaded copper tubes. By setting up rollers, U-shaped grooves, and arc-shaped plates, the device achieves automatic fixing and disassembly of copper tubes without manual operation, effectively reducing the labor intensity of operators. At the same time, it can automatically remove some copper shavings from inside the copper tubes, solving the problems of low processing efficiency and increased labor intensity mentioned in the background art.

[0005] This invention provides the following technical solution: An internal thread processing device for producing internally threaded copper tubes includes a machine frame, on which a horizontally arranged first motor is mounted, and a tapping head is mounted on the first motor. The device further includes: a horizontally arranged roller rotatably mounted on the machine frame; wherein the outer wall of the roller has multiple circumferentially distributed storage slots, and the roller's shaft end is sequentially provided with a feeding station, a tapping station, and a discharging station; the tapping head is located at the tapping station; and a clamping assembly located at the tapping station is provided on the machine frame; a longitudinally arranged rectangular vertical tube is fixedly connected to the machine frame; wherein the rectangular vertical tube is located at the feeding station, and the lower end of the rectangular vertical tube faces one of the storage slots; and a drive unit for driving the roller to rotate is provided on the machine frame.

[0006] As a preferred embodiment of the present invention, the clamping assembly includes an arc-shaped plate fixedly connected to the equipment frame, the arc-shaped plate being attached to the outer wall of the roller, and the arc-shaped plate being located between the loading station and the unloading station. The arc-shaped plate is provided with a top plate that presses against the storage slot, and the top plate is located at the tapping station.

[0007] As a preferred embodiment of the present invention, the drive unit includes a second motor fixedly mounted on the equipment frame, a rotating shaft rotatably mounted on the equipment frame, a roller fixedly mounted on the rotating shaft, and transmission gears fixedly mounted on both the rotating shaft and the output shaft of the second motor, with the two transmission gears meshing with each other.

[0008] As a preferred embodiment of the present invention, a groove is provided on the arc-shaped plate, the top plate is slidably installed in the groove, and a limiting plate is fixedly connected to the upper end of the top plate, and a spring is installed between the limiting plate and the outer wall of the arc-shaped plate.

[0009] As a preferred embodiment of the present invention, a top rod is fixedly installed on the first motor, and a guide plate is fixedly connected to the limiting plate. When the first motor moves toward the storage tank, the top rod will orient the guide plate, causing the top plate to move into the storage tank.

[0010] As a preferred embodiment of the present invention, a gap is provided between the arc-shaped plate and the outer wall of the roller, and the gap is located between the tapping station and the discharge station.

[0011] As a preferred embodiment of the present invention, the width of the gap gradually increases from the tapping station to the discharge station, and in the axial direction of the roller, the width of the gap gradually increases from one end to the other. The surface of the arc plate is provided with a plurality of equally spaced protrusions at the widest point of the gap.

[0012] As a preferred embodiment of the present invention, an inclined guide trough is fixedly connected to the equipment frame, and a collection box is fixedly connected to the equipment frame, with the lower end of the guide trough extending into the collection box.

[0013] As a preferred embodiment of the present invention, an air blowing hood is fixedly installed on the equipment frame. The air blowing hood is close to the end of the roller and faces the end of one of the storage slots. The air blowing hood and the tapping head are respectively located on both sides of the tapping station.

[0014] As a preferred embodiment of the present invention, an active disc is fixedly connected to the outer wall of the tapping head, a circular vertical tube is rotatably mounted on the equipment frame, a fan blade is fixedly installed inside the circular vertical tube, a driven disc is fixedly installed on the outer wall of the circular vertical tube, and the circular vertical tube is connected to the air blowing hood through a connecting pipe. When the tapping head is reset, the active disc and the driven disc come into contact.

[0015] Compared with the prior art, the present invention provides an internal thread processing device for the production of internally threaded copper tubes, which has the following beneficial effects: 1. In this internal thread processing device for producing internally threaded copper tubes, U-shaped storage grooves are set on the rollers, and copper tubes are stacked and stored in conjunction with rectangular vertical tubes. When the storage grooves are aligned with the lower end of the vertical tubes, the copper tubes can automatically slide into the grooves to complete the feeding. After processing, the rollers continue to rotate to the discharge station, and the copper tubes fall automatically under the action of gravity, realizing automatic unloading. The whole process does not require manual assembly and disassembly, which greatly reduces auxiliary time and significantly improves the batch processing efficiency of internal threads of copper tubes.

[0016] 2. In this internal thread processing device for producing internally threaded copper tubes, a clamping assembly consisting of an arc-shaped plate, a top plate, a spring, and a guide plate is set at the tapping station. When the first motor drives the tapping head to move towards the copper tube, the top rod simultaneously pushes the guide plate, causing the top plate to automatically press the copper tube into the storage slot. After processing, the first motor moves in the opposite direction, and the spring automatically resets, causing the top plate to release the copper tube. Thus, the automatic fixing and disassembly of the copper tube is achieved without manual operation, effectively reducing the labor intensity of operators.

[0017] 3. In this internal thread processing device for producing internally threaded copper tubes, there is a gradually widening gap between the arc-shaped plate and the outer wall of the roller, and semi-circular protrusions are evenly distributed at the widest part of the gap. When the storage tank passes through the gap, one side of the copper tube enters the gap and rests against the inner wall of the arc-shaped plate. Due to the gradual change in the depth of the gap, the copper tube is tilted and rolls along the inner wall. At the same time, the protrusions cause the end of the copper tube to shake up and down, thereby loosening and sliding off the residual copper shavings inside. This achieves automatic cleaning of the inner wall of the copper tube, which is convenient for subsequent processing and use.

[0018] 4. In this internal thread processing device for producing internally threaded copper tubes, an air blowing hood and an air blowing mechanism consisting of an active disc, a driven disc, a vertical pipe, and a fan blade are set on both sides of the tapping station. After the tapping head finishes processing and resets, the active disc contacts the driven disc, and the fan blade is driven by the rotational power of the tapping head itself. Air is supplied to the air blowing hood through the connecting pipe, and the airflow is blown into the interior of the copper tube, so that the residual copper chips are blown out. At the same time, the copper tube and the tapping head are cooled. This design does not require an additional power source, and the structure is compact and energy-saving.

[0019] 5. In this internal thread processing device for producing internally threaded copper tubes, an inclined baffle plate is set at the tapping station, with its inclined surface facing the processing area. This effectively blocks copper shavings that splash during processing, preventing them from falling into gaps or guide grooves and affecting equipment operation. The blocked copper shavings slide down the inner wall of the baffle plate into the waste box, realizing automatic collection of copper shavings, facilitating centralized cleaning, and maintaining a clean working environment.

[0020] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention achieves automatic fixing and disassembly of copper tubes through the setting of rollers, U-shaped grooves and arc plates, without the need for manual operation, effectively reducing the labor intensity of operators, and can automatically remove some copper shavings inside the copper tubes. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a partial structural diagram of the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the right-side structure of the drum of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the roller of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the tapping head of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the arc-shaped plate of the present invention.

[0023] In the diagram: 1. Equipment frame; 2. First motor; 3. Tapping head; 4. Rotating shaft; 5. Roller; 6. Storage tank; 7. Loading station; 8. Tapping station; 9. Discharging station; 10. Second motor; 11. Transmission gear; 12. Rectangular vertical tube; 13. Slide groove; 14. Top plate; 15. Limiting plate; 16. Spring; 17. Arc plate; 18. Guide plate; 19. Top rod; 20. Gap; 21. Protrusion; 22. Air blowing hood; 23. Circular vertical tube; 24. Driven disc; 25. Driving disc; 26. C-shaped plate; 27. Connecting pipe; 28. Guide chute; 29. ​​Collection box; 30. Baffle plate; 31. Scrap box. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Reference Figures 1-8 As shown, an internal thread processing device for producing internally threaded copper tubes includes a machine frame 1 for supporting the entire device. The machine frame 1 is a metal cutting machine tool used for cutting internal threads or tapping. The machine frame 1 integrates a laser measuring instrument, a calibration standard instrument, and a coolant nozzle for spraying coolant. A horizontally arranged first motor 2 is mounted on the machine frame 1, capable of horizontal movement under the action of a slide rail and a traveling mechanism. A tapping head 3 for cutting internal threads on the inner wall of the copper tube is mounted on the first motor 2. The device also includes a horizontally arranged roller 5, rotatably mounted on the machine frame 1. The roller 5 is cylindrical in shape. The outer wall of the roller 5 has multiple circumferentially distributed storage slots 6, the number of which is 3-12. In this application, the preferred number of storage slots 6 is 6. The axial cross-sectional shape of the storage slots 6 is... The drum 5 is U-shaped and is used for temporary storage of copper tubes that need to be machined with internal threads. The shaft end of the drum 5 is provided with a feeding station 7 for feeding, a tapping station 8 for cutting internal threads, and a discharging station 9 for discharging materials. The feeding station 7 and the discharging station 9 are located on the upper and lower sides, respectively. The tapping head 3 is located at the tapping station 8. The equipment frame 1 is provided with a clamping assembly located at the tapping station 8. The clamping assembly is used to fix the copper tube in the storage tank 6. A rectangular vertical tube 12 is arranged longitudinally and fixedly connected to the equipment frame 1. The rectangular vertical tube 12 is used to stack and store multiple copper tubes. The internal width is basically the same as the diameter of the copper tube, and the internal length is basically the same as the length of the copper tube. The rectangular vertical tube 12 is located at the feeding station 7, and the lower end of the rectangular vertical tube 12 faces one of the storage tanks 6. The equipment frame 1 is provided with a drive unit to drive the drum 5 to rotate.

[0026] When it is necessary to complete the internal thread processing of copper tubes, multiple copper tubes are stacked in sequence and placed into the rectangular vertical tube 12. Then, the drive unit drives the roller 5 to rotate. When one of the storage slots 6 is aligned with the lower end of the rectangular vertical tube 12, the copper tube at the bottom of the rectangular vertical tube 12 will slide into the current storage slot 6, which realizes the automatic feeding of copper tubes and facilitates the efficiency of subsequent internal thread processing of copper tubes. At this time, the roller 5 continues to rotate. When the storage slot 6 containing copper tubes moves to the tapping station 8, that is, when the axis of the tapping head 3 is collinear with the axis of the current copper tube, the drive unit stops driving the roller 5 to rotate. Then, the first motor 2 drives the tapping head 3 to rotate continuously and moves the first motor 2 and the tapping head 3 towards the copper tube at a uniform speed until the tapping head 3 is inserted into the copper tube, thus realizing the automatic processing of the internal thread of the copper tube. During the initial translation of the first motor 2 and the tapping head 3, the clamping assembly fixes the copper tube in the current storage slot 6, thereby achieving automatic fixing of the copper tube. After the internal thread processing is completed, the first motor 2 and the tapping head 3 are reversed and reset, and the clamping assembly no longer fixes the copper tube. Then the above steps are repeated. When the storage slot 6 moves to the discharge station 9, the processed copper tube can automatically fall down from the storage slot 6. This completes the automatic feeding, fixing, disassembly, internal thread processing, and automatic unloading of multiple copper tubes, significantly improving the processing efficiency of the copper tube internal thread and significantly improving the degree of automation.

[0027] Of course, in other implementations, refer to Figures 3-6 as well as Figure 8 As shown, the clamping assembly includes an arc-shaped plate 17 fixedly connected to the equipment frame 1. The axis of the arc-shaped plate 17 is collinear with the axis of the roller 5. The inner wall of the arc-shaped plate 17 is attached to the outer wall of the roller 5, and the arc-shaped plate 17 is located between the loading station 7 and the unloading station 9. The arc-shaped plate 17 is provided with a top plate 14 that presses into the storage tank 6. The top plate 14 is located at the tapping station 8. The arc-shaped plate 17 is provided with a sliding groove 13, and the top plate 14 is slidably mounted on the sliding groove 13. Inside the slot 13, a limiting plate 15 is fixedly connected to the upper end of the top plate 14. A spring 16 is installed between the limiting plate 15 and the outer wall of the arc plate 17. A top rod 19 is fixedly installed on the first motor 2. A guide plate 18 is fixedly connected to the limiting plate 15. The cross-sectional shape of the guide plate 18 is trapezoidal, and the inclined surface faces the top rod 19. When the first motor 2 moves towards the storage slot 6, the top rod 19 will orient the guide plate 18, causing the top plate 14 to move into the storage slot 6.

[0028] When the first motor 2 moves laterally towards the copper tube, it simultaneously drives the push rod 19 to move synchronously. The push rod 19 will orient the guide plate 18, and under the action of the inclined surface of the guide plate 18, the guide plate 18 will drive the top plate 14 to press into the storage slot 6, pressing the copper tube tightly into the storage slot 6 and compressing the spring 16, thus automatically achieving the fixing of the copper tube. After the internal thread processing of the copper tube is completed, the first motor 2 needs to drive the tapping head 3 to move in the opposite direction to reset, and at the same time, it will also drive the push rod 19 to move in the opposite direction away from the guide plate 18. The guide plate 18 and the spring 16 are no longer under the pressure, so the spring 16 will elastically reset and drive the top plate 14 to be pulled out from the storage slot 6, thus automatically stopping the fixing of the copper tube. Therefore, the fixing and disassembly of the copper tube can be automatically achieved, and the degree of automation is significantly improved.

[0029] Of course, in other implementations, refer to Figure 4 As shown, the drive unit includes a second motor 10 fixedly mounted on the equipment frame 1. A rotating shaft 4 is rotatably mounted on the equipment frame 1. A roller 5 is fixedly mounted on the rotating shaft 4. Transmission gears 11 are fixedly mounted on both the rotating shaft 4 and the output shaft of the second motor 10. The two transmission gears 11 are meshed and connected to each other.

[0030] When it is necessary to rotate the drum 5, start the second motor 10. The second motor 10 can drive the rotating shaft 4 to rotate through two meshing transmission gears 11. The rotating shaft 4 will drive the drum 5 to rotate synchronously. The drum 5 can then drive the storage tank 6 and the copper tube to revolve around its axis, thus realizing the automatic conveying of the copper tube.

[0031] Of course, in other implementations, refer to Figure 5 , Figure 6 as well as Figure 8 As shown, a gap 20 is provided between the arc plate 17 and the outer wall of the roller 5. The gap 20 is located between the tapping station 8 and the discharge station 9. The width of the gap 20 gradually increases from the tapping station 8 to the discharge station 9. In the axial direction of the roller 5, the width of the gap 20 gradually increases from one end to the other. The surface of the arc plate 17 has a plurality of equally spaced protrusions 21 at the widest part of the gap 20. The number of protrusions 21 is 3 to 10. In this application, the preferred number is 6. The protrusions 21 are semi-circular in shape.

[0032] During the rotation of the roller 5, and when the storage tank 6 passes through the gap 20, one side of the copper tube in the storage tank 6 will enter the gap 20 and lean against the inner wall of the arc plate 17. Since the depth of the gap 20 is larger at one end and smaller at the other, and the depth gradually increases, the copper tube will lean against the inner wall of the arc plate 17 at an angle, and the end with the internal thread will tilt downwards and roll along the inner wall of the arc plate 17. During the rolling, some copper shavings remaining inside the copper tube will loosen and slide out. Under the action of multiple protrusions 21, the end of the copper tube will also shake up and down, which makes it easier to shake off the copper shavings on the inner wall of the copper tube, so that the inner wall of the copper tube is cleaned well, which is conducive to the subsequent processing and use of the copper tube.

[0033] Of course, in other implementations, refer to Figures 3-4 As shown, an inclined guide trough 28 is fixedly connected to the equipment frame 1. The axial cross-sectional shape of the guide trough 28 is U-shaped. A collection box 29 for collecting copper tubes is fixedly connected to the equipment frame 1. The lower end of the guide trough 28 extends into the collection box 29.

[0034] When the storage tank 6 is set downwards, that is, when it moves to the discharge station 9, the copper tube in the storage tank 6 will fall into the guide chute 28, and then slide down along the inclined guide chute 28, eventually falling into the collection box 29, thus automatically collecting the copper tube.

[0035] Of course, in other implementations, refer to Figures 3-7 As shown, an air blowing hood 22 for blowing air into the copper tube is fixedly installed on the frame 1 of the above-mentioned equipment. The air blowing hood 22 is close to the end of the roller 5 and faces the end of one of the storage slots 6. The air blowing hood 22 and the tapping head 3 are located on both sides of the tapping station 8. The outer wall of the tapping head 3 is fixedly connected to the drive plate 25. A circular vertical tube 23 is rotatably installed on the frame 1. A fan blade is fixedly installed inside the circular vertical tube 23. The fan blade is not shown in the figure. A driven plate 24 is fixedly installed on the outer wall of the circular vertical tube 23. The drive plate 25 and the driven plate 24 are equivalent to two clutch components that cooperate with each other. The circular vertical tube 23 is connected to the air blowing hood 22 through the connecting pipe 27. When the tapping head 3 is reset, the drive plate 25 and the driven plate 24 come into contact. The end of the circular vertical tube 23 is also fixedly connected to a C-shaped plate 26 surrounding the outer wall of the tapping head 3.

[0036] After the internal thread of the copper tube is processed, the first motor 2 will move the tapping head 3 away from the copper tube. The tapping head 3 will drive the drive plate 25 to move synchronously. When it is completely away, the tapping head 3 will cause the drive plate 25 to press against the driven plate 24. The tapping head 3, which continues to rotate, will drive the driven plate 24 to rotate through the drive plate 25. The driven plate 24 will then drive the circular vertical tube 23 and the internal fan blades to rotate. The circular vertical tube 23 will blow air to the air blowing hood 22 through the connecting pipe 27. The air blowing hood 22 will blow the airflow to the other end of the copper tube, causing the copper tube to generate airflow towards the end with the internal thread, thus blowing out some copper chips inside the copper tube and reducing the impact of copper chips on subsequent copper tube processing. At the same time, it can also provide heat dissipation for the copper tube and the tapping head 3.

[0037] Of course, in other implementations, refer to Figure 3 and Figure 7 As shown, the above-mentioned equipment frame 1 is provided with a waste box 31 for storing copper shavings. A baffle plate 30 that is inclined toward the waste box 31 is fixedly connected to the equipment frame 1. The upper inclined surface of the baffle plate 30 faces the tapping station 8. More preferably, the baffle plate 30 is located between the tapping station 8 and the discharge station 9.

[0038] During the internal threading process of the tapping head 3, copper shavings will be generated. At this time, the baffle plate 30 can block some of the splashed copper shavings, making it difficult for them to fall into the gap 20 and the guide groove 28. The copper shavings that fall onto the baffle plate 30 will also fall along its inner wall into the waste box 31, thus realizing the automatic collection of copper shavings.

[0039] In this invention, when it is necessary to complete the internal thread processing of copper tubes, the operator first stacks multiple copper tubes into the rectangular vertical tube 12 in sequence, and then starts the second motor 10. The second motor 10 drives the rotating shaft 4 to rotate through two meshing transmission gears 11. The rotating shaft 4 drives the drum 5 to rotate synchronously. The outer wall of the drum 5 is provided with U-shaped storage slots 6 distributed in a circle. When one of the storage slots 6 rotates to be aligned with the lower end of the rectangular vertical tube 12, the copper tube at the bottom of the rectangular vertical tube 12 automatically slides into the current storage slot 6 under the action of gravity, thereby realizing the automatic feeding of copper tubes.

[0040] Subsequently, the drum 5 continues to rotate. When the storage slot 6 containing the copper tube moves to the tapping station 8, that is, when the axis of the tapping head 3 is collinear with the axis of the current copper tube, the second motor 10 stops driving the drum 5 to rotate. At this time, the horizontally set first motor 2 starts, driving the tapping head 3 to rotate continuously and move at a constant speed towards the copper tube under the action of the slide rail and the traveling mechanism. In the initial stage of the first motor 2 moving laterally towards the copper tube, the first motor 2 drives the top rod 19 to push against the guide plate 18. The cross-sectional shape of the guide plate 18 is trapezoidal and the inclined surface faces the top rod 19. Under the action of the inclined surface, the guide plate 18 drives the top plate 14 to move into the storage slot 6, pressing the copper tube into the storage slot 6, and compressing the spring 16 at the same time, thereby automatically fixing the copper tube. Then the tapping head 3 is inserted into the copper tube to complete the automatic cutting of the internal thread of the copper tube.

[0041] After the internal thread processing is completed, the first motor 2 drives the tapping head 3 to move in the opposite direction and reset, and at the same time drives the push rod 19 to move in the opposite direction away from the guide plate 18. The guide plate 18 and the spring 16 are no longer subjected to the top pressure. The spring 16 elastically resets and drives the top plate 14 to be pulled out from the storage slot 6. The clamping assembly automatically stops fixing the copper tube. Then the drive unit starts again and the roller 5 continues to rotate.

[0042] During the rotation of the roller 5, when the storage tank 6 passes through the gap 20 between the arc plate 17 and the outer wall of the roller 5, one side of the copper tube in the storage tank 6 will enter the gap 20 and lean against the inner wall of the arc plate 17. Since the depth of the gap 20 is larger at one end and smaller at the other and gradually deepens, the copper tube leans against the inner wall of the arc plate 17 in an inclined state. The end with the internal thread is inclined downward and rolls along the inner wall of the arc plate 17. During the rolling process, the copper shavings remaining inside the copper tube loosen and slide off. When it passes through the semi-circular protrusions 21 that are evenly distributed at the widest part of the gap 20, the protrusions 21 cause the end of the copper tube to vibrate up and down, further shaking off the copper shavings on the inner wall of the copper tube, thus achieving automatic cleaning of the inner wall of the copper tube.

[0043] When the storage tank 6 moves to the discharge station 9, the storage tank 6 is set downwards. The processed copper tubes automatically fall from the storage tank 6 to the inclined guide trough 28 under the action of gravity, slide down along the guide trough 28, and finally slide into the collection box 29, realizing the automatic collection of copper tubes.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An internal thread processing device for producing internally threaded copper tubes, comprising a machine frame (1), wherein a first motor (2) is horizontally mounted on the machine frame (1), and a tapping head (3) is mounted on the first motor (2), characterized in that, Also includes: A horizontally arranged roller (5) is rotatably mounted on the equipment frame (1); The outer wall of the roller (5) is provided with a plurality of storage slots (6) distributed in a circle, and the shaft end of the roller (5) is provided with a feeding station (7), a tapping station (8) and a discharging station (9) in sequence. The tapping head (3) is located at the tapping station (8), and the equipment frame (1) is provided with a clamping assembly located at the tapping station (8). A longitudinally arranged rectangular vertical tube (12) is fixedly connected to the equipment frame (1); The rectangular vertical tube (12) is located at the loading station (7), and the lower end of the rectangular vertical tube (12) faces one of the storage slots (6). The equipment frame (1) is provided with a drive unit for rotating the drive roller (5).

2. The internal thread processing device for producing internally threaded copper tubes according to claim 1, characterized in that, The clamping assembly includes an arc plate (17) fixedly connected to the equipment frame (1). The arc plate (17) is attached to the outer wall of the roller (5) and is located between the loading station (7) and the unloading station (9). The arc plate (17) is provided with a top plate (14) that presses into the storage slot (6). The top plate (14) is located at the tapping station (8).

3. The internal thread processing device for producing internally threaded copper tubes according to claim 1, characterized in that, The drive unit includes a second motor (10) fixedly mounted on the equipment frame (1). A rotating shaft (4) is rotatably mounted on the equipment frame (1). A roller (5) is fixedly mounted on the rotating shaft (4). Transmission gears (11) are fixedly mounted on both the rotating shaft (4) and the output shaft of the second motor (10). The two transmission gears (11) mesh with each other.

4. The internal thread processing device for producing internally threaded copper tubes according to claim 2, characterized in that, The arc plate (17) is provided with a sliding groove (13), the top plate (14) is slidably installed in the sliding groove (13), and the upper end of the top plate (14) is fixedly connected to a limiting plate (15). A spring (16) is installed between the limiting plate (15) and the outer wall of the arc plate (17).

5. The internal thread processing device for producing internally threaded copper tubes according to claim 4, characterized in that, A top rod (19) is fixedly installed on the first motor (2), and a guide plate (18) is fixedly connected to the limiting plate (15). When the first motor (2) moves toward the storage tank (6), the top rod (19) will orient the guide plate (18), causing the top plate (14) to move into the storage tank (6).

6. The internal thread processing device for producing internally threaded copper tubes according to claim 2, characterized in that, A gap (20) is provided between the outer wall of the arc plate (17) and the roller (5), and the gap (20) is located between the tapping station (8) and the discharge station (9).

7. The internal thread processing device for producing internally threaded copper tubes according to claim 6, characterized in that, The width of the gap (20) gradually increases from the tapping station (8) to the discharge station (9), and in the axial direction of the roller (5), the width of the gap (20) gradually increases from one end to the other. The surface of the arc plate (17) is provided with a plurality of equally spaced protrusions (21) at the widest point of the gap (20).

8. The internal thread processing device for producing internally threaded copper tubes according to claim 1, characterized in that, An inclined guide trough (28) is fixedly connected to the equipment frame (1), and a collection box (29) is fixedly connected to the equipment frame (1). The lower end of the guide trough (28) extends into the collection box (29).

9. The internal thread processing device for producing internally threaded copper tubes according to claim 1, characterized in that, An air blowing hood (22) is fixedly installed on the equipment frame (1). The air blowing hood (22) is close to the end of the roller (5) and faces the end of one of the storage slots (6). The air blowing hood (22) and the tapping head (3) are located on both sides of the tapping station (8).

10. An internal thread processing device for producing internally threaded copper tubes according to claim 9, characterized in that, The outer wall of the tapping head (3) is fixedly connected to the active disk (25). A circular vertical tube (23) is rotatably installed on the equipment frame (1). A fan blade is fixedly installed inside the circular vertical tube (23). A driven disk (24) is fixedly installed on the outer wall of the circular vertical tube (23). The circular vertical tube (23) is connected to the air blowing hood (22) through the connecting pipe (27). When the tapping head (3) is reset, the active disk (25) and the driven disk (24) come into contact.

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