Fine machining device for inner wall of metal connecting rod of rotating head for perforating machine

Abstract

The invention discloses a rotary head metal connecting rod inner wall finish machining device for a perforating machine in the technical field of metal machining, which comprises a bottom plate, a slide way and a motor I are arranged above the bottom plate, and the rear end of an output shaft of the motor I is fixedly connected with a boring cutter; the sliding way is fixedly connected with the bottom plate and used for supporting a metal pipe to be machined. The sliding assembly is used for supporting the first motor and the boring cutter to slide back and forth on the bottom plate. A U-shaped rack is arranged above the first motor, and a gear is meshed with the U-shaped rack; a limiting assembly is arranged above the gear and used for limiting the gear to move along the U-shaped rack. A driving assembly is fixed above the sliding assembly, is connected with the gear and drives the gear to rotate; the U-shaped rack is connected with the feeding mechanism; when the metal pipe is machined every time, it can be guaranteed that the feeding amount of the boring cutter every time can exactly complete machining of the corresponding metal pipe, the machining time can be effectively saved, and energy consumption of equipment is reduced while it is guaranteed that machining of the metal pipe is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and particularly to a fine machining device for the inner wall of a metal connecting rod of a rotating head of a piercing machine. Background Technique

[0002] The metal connecting rod of the rotating shaft of a piercing machine is a part used to connect other parts to the rotating shaft, and its shape is usually a hollow cylindrical shape; since the requirements for the length of the metal connecting pipe used for the rotating shaft of a piercing machine are not strict, among a batch of metal pipes, there are often some metal pipes whose lengths are lower or higher than the normal standard.

[0003] When cutting the inner wall of a metal pipe, the metal pipe is usually fixed, and then the machine tool is started to drive the boring tool to rotate. By applying a certain feed amount to the boring tool, the boring tool can enter the metal pipe and pass through the metal pipe, and then the boring tool is driven to reset to complete the fine machining of the inner wall of a metal pipe; since the feed amount of the boring tool driven by the existing fine machining equipment is constant each time, in order to ensure that the boring tool can cut the inner wall of each metal pipe, it is necessary to keep a large feed amount of the boring tool so that it can pass through each metal pipe; however, when processing some shorter metal pipes, the feed amount of the boring tool will be redundant, thereby increasing the energy consumption of the overall equipment and also taking a longer processing time. Summary of the Invention

[0004] The purpose of the present invention is to provide a fine machining device for the inner wall of a metal connecting rod of a rotating head of a piercing machine to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A fine machining device for the inner wall of a metal connecting rod of a rotating head of a piercing machine, including a bottom plate, a slideway and a motor 1 are arranged above the bottom plate, and the rear end of the output shaft of the motor 1 is fixedly connected with a boring tool; the slideway is fixedly connected with the bottom plate and the slideway is used to support the metal pipe to be processed; A feeding mechanism is arranged on the slideway, and the feeding mechanism is used to push the metal pipe to be processed on the slideway to the processing position, and can also automatically detect the length of the metal pipe to be processed; A fixing mechanism is arranged on the bottom plate, and the fixing mechanism is used to fix the metal pipe to be processed on the slideway when the feeding mechanism pushes the metal pipe to be processed to the processing position; A feeding mechanism is arranged on the bottom plate, and the feeding mechanism is used to drive the motor 1 and the boring tool to feed forward and the feed amount is equal to the detected length of the metal pipe; The feeding mechanism includes a sliding assembly for supporting the first motor and the boring tool to slide back and forth on the bottom plate. Above the first motor, there is a U-shaped rack, which meshes with a gear. Above the gear, there is a limiting assembly for restricting the movement of the gear along the U-shaped rack. Above the sliding assembly, there is a driving assembly fixed thereto. The driving assembly is connected to the gear and drives the gear to rotate. The U-shaped rack is connected to the feeding mechanism.

[0006] Preferably, the sliding assembly includes a first frame fixedly connected to the first motor. The first frame is symmetrically provided with slide rails at the left and right positions, and a second frame is sleeved on the outer surface of the first frame. The first frame is slidably connected to the two slide rails in the front and rear directions and is slidably connected to the inner wall of the second frame in the left and right directions.

[0007] Preferably, the driving assembly includes a first bracket fixed above the second frame. Inside the first bracket, there is a second motor fixedly connected to the second frame. The output shaft of the second motor is fixedly connected to the gear, and the gear is rotatably connected to the first bracket.

[0008] Preferably, the limiting assembly includes a limiting rod fixed above the gear. Above the U-shaped rack, there is a U-shaped limiting frame. The limiting rod is in clearance fit with the inner wall of the U-shaped limiting frame, and the U-shaped limiting frame is fixedly connected to the U-shaped rack.

[0009] Preferably, the feeding mechanism includes a cylinder fixed on the bottom plate. The rear end of the cylinder is fixedly connected to a first push plate. The rear end of the first push plate is fixedly connected to a first spring. The rear end of the first spring is fixedly connected to a second push plate. A connecting rod is fixedly connected to a rear portion of the cylinder. The connecting rod is fixedly connected to the U-shaped rack.

[0010] Preferably, a first blocking ring is fixedly connected to the rear end of the slideway. A second blocking ring is fixedly connected to the rear end of the second push plate. The inner diameters of the first blocking ring and the second blocking ring are equal, and the sizes are between the inner diameter and the outer diameter of the metal tube.

[0011] Preferably, the fixing mechanism includes a fixing plate located above the slideway. A sliding sleeve is sleeved on the fixing plate, and second brackets are symmetrically arranged on the left and right sides of the fixing plate. The second support frames are fixedly connected to the bottom plate and the sliding sleeve. A sliding rod is slidably connected inside the sliding sleeve. The bottom end of the sliding rod is fixedly connected to the fixing plate, and a second spring is sleeved on the sliding rod. One end of the second spring is fixedly connected to the sliding sleeve, and the other end is fixedly connected to the fixing plate. Above the sliding rod, there is a pressing assembly for driving the sliding rod to slide downward relative to the sliding sleeve when the connecting rod moves backward.

[0012] Preferably, the pressing component includes a push rod fixed to the connecting rod. A first link is provided behind the push rod. The left and right ends of the first link are respectively slidably connected to the second brackets on the left and right sides. Symmetrically rotatably connected to the left and right ends of the first link are second links. One end of the bottom side of the second link is rotatably connected to the sliding rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the air cylinder is used to push the first push plate and the second push plate to move. The second push plate can push the metal pipe to be processed to the processing position. At the same time, the air cylinder can determine the position of the U-shaped rack according to the length of the metal pipe. When the metal pipe is pushed to the processing position, the distance between the frontmost part of the U-shaped rack and the gear is the length of the metal pipe at this time. The gear moves back and forth along the U-shaped rack, which can just drive the boring tool to complete a fine machining of the inner wall of the metal pipe once. Each time during processing, it can be ensured that the feed amount of the boring tool each time can just complete the processing of the corresponding metal pipe, which can effectively save processing time and reduce the energy consumption of the equipment while ensuring the completion of the metal pipe processing.

[0014] When the present invention uses the air cylinder to push the metal pipe to the processing position, the metal pipe is blocked by the first blocking ring at this time. As the air cylinder continues to operate, the first push plate begins to compress the first spring and the first push rod and continues to move backward. When the push rod continues to move, it will push the first link to move backward. When the first link moves backward, it drives the sliding rod to slide downward relative to the sliding sleeve through the two second links. When the sliding rod slides downward, it drives the fixing plate to move downward. When the fixing plate moves to a position where it fits the metal pipe, it will firmly fix the metal pipe. At this time, the air cylinder can be stopped; thus, the effect of automatically fixing the metal pipe can be achieved. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the rear structural schematic diagram of the present invention; Figure 3 is the disassembled structural schematic diagram of the present invention; Figure 4 is the structural schematic diagram of the feeding mechanism of the present invention; Figure 5 is the disassembled structural schematic diagram of the feeding mechanism of the present invention; Figure 6 is the structural schematic diagram of the loading mechanism of the present invention; Figure 7 is the disassembled structural schematic diagram of the loading mechanism of the present invention; Figure 8 is the schematic diagram of the processing process of the short metal pipe of the present invention; Figure 9 is the schematic diagram of the processing process of the long metal pipe of the present invention.

[0016] In the attached drawings: 1. Base plate; 2. Slideway; 3. First motor; 4. Boring tool; 5. Metal pipe; 6. U-shaped rack; 7. Gear; 8. First frame; 9. Slide rail; 10. Second frame; 11. First support; 12. Second motor; 13. Limit rod; 14. U-shaped limit frame; 15. Cylinder; 16. First push plate; 17. First spring; 18. Second push plate; 19. Connecting rod; 20. First blocking ring; 21. Second blocking ring; 22. Fixed plate; 23. Sliding sleeve; 24. Second support; 25. Slide bar; 26. Second spring; 27. Push rod; 28. First connecting link; 29. Second connecting link. Detailed implementation mode

[0017] Please refer to Figures 1-9 , the present invention provides a technical solution: a fine machining device for the inner wall of a rotating head metal connecting rod of a perforating machine, including a base plate 1, a slideway 2 and a first motor 3 are arranged above the base plate 1, and a boring tool 4 is fixedly connected to the rear end of the output shaft of the first motor 3; the slideway 2 is fixedly connected to the base plate 1 and the slideway 2 is used to support the metal pipe 5 to be processed; A feeding mechanism is arranged on the slideway 2, and the feeding mechanism is used to push the metal pipe 5 to be processed on the slideway 2 to the processing position, and can also automatically detect the length of the metal pipe 5 to be processed; A fixing mechanism is arranged on the base plate 1, and the fixing mechanism is used to fix the metal pipe 5 to be processed on the slideway 2 when the feeding mechanism pushes the metal pipe 5 to be processed to the processing position; A feeding mechanism is arranged on the base plate 1, and the feeding mechanism is used to drive the first motor 3 and the boring tool 4 to feed forward, and the feeding amount is equal to the length of the detected metal pipe 5; The feeding mechanism includes a sliding component, and the sliding component is used to support the first motor 3 and the boring tool 4 to slide back and forth on the base plate 1; a U-shaped rack 6 is arranged above the first motor 3, and a gear 7 is engaged with the U-shaped rack 6; a limiting component is arranged above the gear 7, and the limiting component is used to limit the movement of the gear 7 along the U-shaped rack 6; a driving component is fixed above the sliding component, and the driving component is connected to the gear 7 and drives the gear 7 to rotate; the U-shaped rack 6 is connected to the feeding mechanism; During operation, when the inner wall of the metal pipe 5 needs to be cut, the metal pipe 5 to be processed is placed on the slideway 2, and then the feeding mechanism is started. Through the feeding mechanism, the metal pipe 5 can be pushed to the processing position. Since the feeding mechanism transports the metal pipe 5 by pushing, the length of the metal pipe 5 to be processed can be detected through the final position of the feeding mechanism; When the metal pipe 5 is pushed to the processing position, the fixing mechanism is started at this time. The fixing mechanism will fix the metal pipe 5 relative to the slideway 2. Then, the first motor 3 can be started, and the first motor 3 drives the boring tool 4 to start rotating. At this time, the feeding mechanism is started, and the driving component drives the gear 7 to rotate. When the gear 7 rotates, it will move forward along the U-shaped rack 6. The first motor 3 and the boring tool 4 will follow the gear 7 to move forward under the support of the sliding component. The boring tool 4 will extend into the metal pipe 5 and start cutting the inner wall of the metal pipe 5. When the gear 7 moves to the frontmost position of the U-shaped rack 6, at this time, the boring tool 4 just moves to the frontmost position inside the metal pipe 5. As the gear 7 continues to rotate, the gear 7 starts to move backward along the U-shaped rack 6, and the boring tool 4 slowly withdraws from the metal pipe 5, completing the finish machining of the metal pipe 5. Before the boring tool 4 feeds, since the feeding mechanism can detect the length of the metal pipe 5 to be processed, the feeding mechanism can adjust the position of the U-shaped rack 6 according to the length of the metal pipe 5. When the position of the U-shaped rack 6 is determined, the distance from the gear 7 to the frontmost end of the U-shaped rack 6 at this time is the length of the metal pipe 5, that is, the feed amount of the boring tool 4. Thus, it can be ensured that the feed amount of the boring tool 4 each time can just complete the processing of the corresponding metal pipe 5, which can effectively save the processing time and while ensuring the completion of the processing of the metal pipe 5, reduce the energy consumption of the equipment.

[0018] As a further solution of the present invention, the sliding component includes a frame one 8 fixedly connected to the first motor 3. Slide rails 9 are symmetrically arranged at the left and right positions of the frame one 8, and a frame two 10 is sleeved on the outer surface of the frame one 8. The frame one 8 is slidably connected to the two slide rails 9 in the front and rear directions, and the frame one 8 is slidably connected to the inner wall of the frame two 10 in the left and right directions. The driving component includes a support one 11 fixed above the frame two 10. A second motor 12 fixedly connected to the frame two 10 is arranged inside the support one 11. The output shaft of the second motor 12 is fixedly connected to the gear 7, and the gear 7 is rotatably connected to the support one 11. The limiting component includes a limiting rod 13 fixed above the gear 7. A U-shaped limiting frame 14 is arranged above the U-shaped rack 6. The limiting rod 13 is in clearance fit with the inner wall of the U-shaped limiting frame 14, and the U-shaped limiting frame 14 is fixedly connected to the U-shaped rack 6. During operation, refer to Figures 4-5 , starting the second motor 12 will drive the gear 7 to rotate. When the gear 7 rotates, it moves forward along the U-shaped rack 6. At this time, the gear 7 will drive the frame one 8 to move forward through the support one 11 and the frame two 10. The frame one 8 will drive the first motor 3 and the boring tool 4 to slide forward along the two slide rails 9. When the gear 7 moves to the frontmost part of the U-shaped rack 6, the gear 7 will gradually move closer to the middle part of the U-shaped rack 6 at this time. The frame two 10 will slide horizontally relative to the frame one 8. At the same time, under the limitation of the U-shaped limiting frame 14, the gear 7 can always maintain the meshing state with the U-shaped rack 6, so as to ensure that the gear 7 moves normally along the U-shaped rack 6.

[0019] As a further solution of the present invention, the feeding mechanism includes a cylinder 15 fixed on the bottom plate 1. A first push plate 16 is fixedly connected to the rear end of the cylinder 15. A first spring 17 is fixedly connected to the rear end of the first push plate 16. A second push plate 18 is fixedly connected to the rear end of the first spring 17. A connecting rod 19 is fixedly connected to a rear portion of the cylinder 15. The connecting rod 19 is fixedly connected to the U-shaped rack 6. A first blocking ring 20 is fixedly connected to the rear end of the slideway 2. A second blocking ring 21 is fixedly connected to the rear end of the second push plate 18. The inner diameters of the first blocking ring 20 and the second blocking ring 21 are equal and their sizes are between the inner diameter and the outer diameter of the metal tube 5. During operation, refer to Figures 6-7 , when feeding is required, first start the cylinder 15 to drive the first push plate 16 and the second push plate 18 to move backward. When the first push plate 16 and the second push plate 18 move to the rearmost position, at this time, place the metal tube 5 to be processed on the slideway 2, and then start the cylinder 15 to drive the first push plate 16 and the second push plate 18 to move backward. The first push plate 16 pushes the second push plate 18 through the first spring 17, and the second push plate 18 pushes the metal tube 5 to move backward through the second blocking ring 21. When the rear end of the metal tube 5 moves to a position where it fits with the first blocking ring 20, at this time, the metal tube 5 is in the processing position. While the cylinder 15 drives the first push plate 16 and the second push plate 18 to move backward, it will also drive the connecting rod 19 to move backward. The connecting rod 19 drives the U-shaped rack 6 to move backward. When the metal tube 5 is in the processing position, at this time, the connecting rod 19 will drive the U-shaped rack 6 to be in the corresponding position.

[0020] As a further solution of the present invention, the fixing mechanism includes a fixing plate 22 located above the slideway 2. A sliding sleeve 23 is sleeved on the fixing plate 22, and support brackets 24 are symmetrically arranged on the left and right sides of the fixing plate 22. The second support brackets are fixedly connected to the bottom plate 1 and the sliding sleeve 23. A sliding rod 25 is slidably connected inside the sliding sleeve 23. The bottom end of the sliding rod 25 is fixedly connected to the fixing plate 22, and a second spring 26 is sleeved on the sliding rod 25. One end of the second spring 26 is fixedly connected to the sliding sleeve 23 and the other end is fixedly connected to the fixing plate 22. A pressing component is arranged above the sliding rod 25, and the pressing component is used to drive the sliding rod 25 to slide downward relative to the sliding sleeve 23 when the connecting rod 19 moves backward. The pressing component includes a push rod 27 fixed to the connecting rod 19. A first connecting rod 28 is arranged behind the push rod 27. The left and right ends of the first connecting rod 28 are respectively slidably connected to the support brackets 24 on the left and right sides. Symmetrically rotatable second connecting rods 29 are connected to the left and right ends of the first connecting rod 28. The bottom end of the second connecting rod 29 is rotatably connected to the sliding rod 25. During operation, refer to Figures 6-7, when the cylinder 15 drives the push plate 16 and the push plate 2 18 to move backward, the cylinder 15 drives the push rod 27 to move backward through the connecting rod 19 at the same time; when the metal tube 5 is in the processing position, the push rod 27 just fits with the connecting rod 1 28; as the cylinder 15 continues to operate, the push plate 16 begins to compress the spring 17 and the push rod 27 and continue to move backward. When the push rod 27 continues to move, it will push the connecting rod 1 28 to move backward. When the connecting rod 1 28 moves backward, it drives the slide bar 25 to slide downward relative to the sliding sleeve 23 through the two connecting rods 29. When the slide bar 25 slides downward, it drives the fixed plate 22 to move downward. When the fixed plate 22 moves to the position that fits the metal tube 5, it will firmly fix the metal tube 5. At this time, the cylinder 15 can be stopped; When the metal tube 5 needs to be returned after processing, the cylinder 15 is started to drive the push plate 16 and the push rod 27 to move forward first. When the push rod 27 moves forward, the thrust on the connecting rod 28 is gradually withdrawn. At this time, under the action of the spring 26, the fixed plate 22 will gradually move upward and separate from the metal tube 5; as the cylinder 15 continues to operate, the push plate 16 drives the push plate 2 18 to move forward through the spring 17 and separate from the metal tube 5. At this time, the processed metal tube 5 can be taken out and the metal tube 5 to be processed can be placed.

Claims

1. A device for finishing the inner wall of a metal connecting rod of a rotating head for a punching machine, comprising a bottom plate (1), characterized in that: A slideway (2) and a motor 1 (3) are provided above the base plate (1), and a boring cutter (4) is fixedly connected to the rear end of the output shaft of the motor 1 (3); the slideway (2) is fixedly connected to the base plate (1) and is used to support the metal pipe (5) to be processed; The slideway (2) is provided with a loading mechanism, which is used to push the metal tube (5) to be processed on the slideway (2) to a processing position, and can also automatically detect the length of the metal tube (5) to be processed; The bottom plate (1) is provided with a fixing mechanism, and the fixing mechanism is used to fix the metal tube (5) to be processed on the slideway (2) when the feeding mechanism pushes the metal tube (5) to be processed to the processing position; A feeding mechanism is provided on the bottom plate (1), and the feeding mechanism is used to drive the motor 1 (3) and the boring tool (4) to feed forward, and the feeding amount is equal to the detected length of the metal tube (5); The feeding mechanism comprises a sliding assembly, the sliding assembly is used to support the motor 1 (3) and the boring tool (4) to slide back and forth on the bottom plate (1); a U-shaped rack (6) is provided above the motor 1 (3), and a gear (7) is meshed on the U-shaped rack (6); a limit assembly is provided above the gear (7), and the limit assembly is used to limit the gear (7) from moving along the U-shaped rack (6); a driving assembly is fixed above the sliding assembly, and the driving assembly is connected to the gear (7) and drives the gear (7) to rotate; the U-shaped rack (6) is connected to the feeding mechanism.

2. According to claim 1, a device for finishing the inner wall of a metal connecting rod of a rotary head for a punching machine is characterized in that: The sliding assembly comprises a frame one (8) fixedly connected to a motor one (3); the frame one (8) is symmetrically provided with slide rails (9) at left and right positions, and a frame two (10) is sleeved on the outer surface of the frame one (8); the frame one (8) is slidably connected to the two slide rails (9) in the front-to-back direction, and the frame one (8) is slidably connected to the inner wall of the frame two (10) in the left-to-right direction.

3. According to claim 2, a device for finishing the inner wall of a metal connecting rod of a rotary head for a punching machine is characterized in that: The driving assembly comprises a bracket one (11) fixed above the frame two (10), a motor two (12) fixedly connected to the frame two (10) is arranged inside the bracket one (11), an output shaft of the motor two (12) is fixedly connected to a gear (7), and the gear (7) is rotationally connected to the bracket one (11).

4. According to claim 1, a device for finishing the inner wall of a metal connecting rod of a rotary head for a punching machine is characterized in that: The limiting assembly comprises a limiting rod (13) fixed above the gear (7); a U-shaped limiting frame (14) is provided above the U-shaped rack (6); the limiting rod (13) and the inner wall of the U-shaped limiting frame (14) are clearance-matched, and the U-shaped limiting frame (14) is fixedly connected to the U-shaped rack (6).

5. According to claim 1, a device for finishing the inner wall of a metal connecting rod with a rotating head for a punching machine is characterized in that: The feeding mechanism comprises a cylinder (15) fixed on the bottom plate (1), the rear end of the cylinder (15) being fixedly connected to a push plate 1 (16), the rear end of the push plate 1 (16) being fixedly connected to a spring 1 (17), and the rear end of the spring 1 (17) being fixedly connected to a push plate 2 (18); the rear side portion of the cylinder (15) being fixedly connected to a connecting rod (19), and the connecting rod (19) being fixedly connected to the U-shaped rack (6).

6. According to claim 5, a device for finishing the inner wall of a metal connecting rod of a rotary head for a punching machine is characterized in that: The rear end of the slideway (2) is fixedly connected to a blocking ring 1 (20); the rear end of the push plate 2 (18) is fixedly connected to a blocking ring 2 (21); the inner diameters of the blocking ring 1 (20) and the blocking ring 2 (21) are equal and their sizes are between the inner diameter and the outer diameter of the metal tube (5).

7. According to claim 5, a device for finishing the inner wall of a metal connecting rod of a rotary head for a punching machine is characterized in that: The fixing mechanism comprises a fixing plate (22) located above the slideway (2), a sliding sleeve (23) being sleeved on the fixing plate (22), and two brackets (24) being symmetrically provided on the left and right sides of the fixing plate (22), and the two brackets being fixedly connected to the bottom plate (1) and the sliding sleeve (23); a sliding rod (25) being slidably connected inside the sliding sleeve (23), the bottom end of the sliding rod (25) being fixedly connected to the fixing plate (22), and a second spring (26) being sleeved on the sliding rod (25), one end of the second spring (26) being fixedly connected to the sliding sleeve (23) and the other end being fixedly connected to the fixing plate (22); a pressing assembly being provided above the sliding rod (25), and the pressing assembly being used for driving the sliding rod (25) to slide downward relative to the sliding sleeve (23) when the connecting rod (19) moves backward.

8. The inner wall finishing device of a metal connecting rod with a rotating head for a punching machine according to claim 7, characterized in that: The pressing assembly comprises a push rod (27) fixed to a connecting rod (19); a connecting rod 1 (28) is arranged at the rear of the push rod (27); the left and right ends of the connecting rod 1 (28) are respectively slidably connected to the left and right brackets 2 (24); the left and right ends of the connecting rod 1 (28) are symmetrically rotatably connected to the connecting rod 2 (29); one end of the bottom side of the connecting rod 2 (29) is rotatably connected to the sliding rod (25).

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