Machine tool for processing copper tubes

Abstract

This application relates to the field of machine tools, and in particular to a copper tube processing machine tool, comprising a machine body, a material handling assembly, at least two clamping assemblies, and at least two milling and turning assemblies. Each clamping assembly includes a clamping seat and a spindle. The machine body has sliding cavities on its opposite end faces for the clamping seat to slide. One end of the spindle is rotatably connected to the surface of the clamping seat, and the other end of the spindle can clamp the end of the copper tube and drive the copper tube to rotate. The axes of the two spindles coincide. At least two milling and turning assemblies are slidably connected to the surface of the machine body at intervals, located between the two spindles. The material handling assembly is slidably connected to the surface of the machine body, and the sliding direction of the material handling assembly is parallel to the axis of the spindle. The arrangement of the material handling assembly, clamping assembly, and milling and turning assemblies in this application enables automated processing of both ends of the copper tube along its axial direction, eliminating the need for manual tool disassembly and replacement, improving processing efficiency, shortening the processing cycle, and thus reducing processing costs.

Description

Technical Field

[0001] This application relates to the field of machine tools, and more particularly to a machine tool for processing copper tubes. Background Technology

[0002] Copper pipe is a seamless tube made of pure copper or copper alloy through processes such as pressing and drawing. Due to its excellent physical and chemical properties, it is widely used in many fields.

[0003] When different cutting tools are required for milling the two ends of a copper tube along its axial direction, the operator first inserts the end of the copper tube into the spindle of the machine tool. The spindle drives the copper tube to rotate, and the cutting tool on the machine tool mills the outer circumference of the copper tube. When one end of the copper tube is finished, the operator removes the copper tube and inserts the finished end into the spindle of the machine tool, then replaces the corresponding cutting tool and mills the unfinished end of the copper tube. This reduces the processing efficiency of the copper tube, prolongs the production cycle of the copper tube, and thus increases the production cost of the copper tube. Summary of the Invention

[0004] In order to improve the production cost of copper tubes, this application provides a processing machine tool for copper tubes.

[0005] This application provides a copper tube processing machine tool, which adopts the following technical solution: A copper tube processing machine tool includes a machine body, a material handling assembly, at least two clamping assemblies, and at least two milling and turning assemblies. Each clamping assembly includes a clamping seat and a spindle. The machine body has sliding cavities on its opposite end faces for the clamping seat to slide. One end of the spindle is rotatably connected to the surface of the clamping seat, and the other end of the spindle can clamp the end of a copper tube and rotate it. The axes of the two spindles coincide. At least two milling and turning assemblies are slidably connected to the surface of the machine body at intervals, located between the two spindles. The sliding direction of the milling and turning assemblies is perpendicular to the axis of the spindles. Each milling and turning assembly corresponds to a spindle and mills the end of the copper tube on the spindle. The material handling assembly is slidably connected to the surface of the machine body, and its sliding direction is parallel to the axis of the spindles. The material handling assembly can clamp an unprocessed end of a copper tube, embed it into the end of one spindle, and remove a processed copper tube from the other spindle.

[0006] By adopting the above technical solution, the milling and turning components correspond one-to-one with the spindles. The operator installs the cutting tools required for milling both ends of the copper tube onto the milling and turning components, and the material handling component clamps the unprocessed end of the copper tube and embeds it into one of the spindle ends. The milling and turning components slide along the machine surface towards the spindle, with the machining end on the components facing the copper tube end clamped by the spindle. The spindle drives the copper tube to rotate around its own axis, and the milling and turning components perform milling on the copper tube end. When the milling of the copper tube end is completed, the milling and turning components slide along the machine surface away from the spindle, and the two clamping seats slide along the machine surface towards each other. The two spindle clamps... The two holding ends abut against each other, and another spindle is coaxially sleeved on and clamped to the finished end of the copper tube. The two holding seats slide along the surface of the machine body in a direction away from each other, and another milling and turning assembly slides along the surface of the machine body in a direction closer to the spindle. The machining end on the milling and turning assembly performs milling and turning on the unmachined end of the copper tube. The material taking assembly clamps the unmachined copper tube and embeds it into the end of one of the spindles, and removes the finished copper tube from the other spindle. This realizes automated machining of both ends of the copper tube in the axial direction, without the need for operators to disassemble and replace the tools, improving the machining efficiency of the copper tube, shortening the machining cycle of the copper tube, and thus reducing the machining cost of the copper tube.

[0007] Optionally, the material handling assembly includes a material handling guide rail, a slider, a lifting seat, a material handling seat, a rotating seat, and a three-jaw chuck. The material handling guide rail is connected to the surface of the machine body. The slider is slidably connected to the surface of the material handling guide rail, and the sliding direction of the slider is parallel to the axis of the main shaft. The lifting seat is slidably connected to the surface of the slider, and the sliding direction of the lifting seat is perpendicular to the axis of the main shaft. The rotating seat is rotatably connected to the surface of the lifting seat facing the main shaft, and the rotation axis of the rotating seat is parallel to the sliding direction of the lifting seat. The material handling seat is connected to the surface of the material handling seat. The three-jaw chuck is rotatably connected to the surface of the material handling seat, and the rotation axis of the three-jaw chuck is perpendicular to the rotation axis of the rotating seat. The axis of the three-jaw chuck itself is perpendicular to the rotation axis, and the clamping end of the three-jaw chuck can clamp the end of the copper tube.

[0008] By adopting the above technical solution, when feeding copper tubes, the slider slides away from the main shaft along the feeding guide rail, and the slider faces the shelf where the unprocessed copper tubes are placed. The lifting seat slides closer to the shelf along the slider surface, and the three-jaw chuck approaches the shelf. The feeding seat drives the three-jaw chuck to rotate, so that the clamping end of the three-jaw chuck faces one of the unprocessed copper tubes on the shelf. The three-jaw chuck clamps the end of the unprocessed copper tube. The lifting seat slides away from the shelf along the slider surface, and the three-jaw chuck drives the unprocessed copper tube away from the shelf. The slider moves closer to one of the main shafts along the feeding guide rail. The lifting seat slides along the slider surface towards the main shaft. The axis of the copper tube end held by the three-jaw chuck coincides with the axis of one of the main shafts. The main shaft holds the copper tube end on the three-jaw chuck. The rotating seat drives the take-up seat to rotate, so that the three-jaw chuck faces the other main shaft. The clamping end of the three-jaw chuck faces the copper tube end that has been processed on the main shaft. The lifting seat slides along the slider surface away from the main shaft, realizing the unloading of processed copper tubes and the automatic loading of unprocessed copper tubes, further improving the processing efficiency of copper tubes.

[0009] Optionally, the milling and turning assembly includes a sliding seat, multiple limiting seats, and multiple cutting tools. The sliding seat is slidably connected to the surface of the machine body, and the multiple limiting seats are spaced apart on the surface of the sliding seat. The arrangement direction of the limiting seats is parallel to the sliding direction of the sliding seat. The end face of the limiting seat facing the spindle has a limiting cavity for the cutting tool tip to be inserted. The inner wall of the limiting cavity abuts against the surface of the cutting tool to form a limiting position, and the cutting edge of the cutting tool can abut against the end of the copper tube on the spindle and perform milling and turning.

[0010] By adopting the above technical solution, the workers can match the milling sequence of multiple tools required for milling the copper tube end with multiple limit seats and embed them into the limit cavity. The inner wall of the limit cavity abuts against the tool surface to form a limit, so that the tool edge is less likely to deviate during the milling process of the copper tube end on the spindle, thereby improving the processing accuracy of the copper tube.

[0011] Optionally, the milling assembly further includes a baffle, one end of which is connected to the surface of one of the sliding seats, the other end of which protrudes from the top surface of the limiting seat, and the baffle is located between the two sliding seats.

[0012] By adopting the above technical solution, one end of the baffle is connected to the surface of one of the sliding seats, and the other end of the baffle protrudes from the top surface of the limiting seat. The baffle is located between the two sliding seats, which prevents the fine chips generated during the machining of one milling and turning component from hitting the machining end of the other milling and turning component, reducing the wear on the machining end of the milling and turning component, thereby extending the service life of the machine tool.

[0013] Optionally, a clamping assembly is connected between the limiting seat and the cutting tool. The clamping assembly includes a clamping screw. The surface of the limiting seat has a threaded hole for threaded connection of the clamping screw. The threaded hole communicates with the limiting cavity. The end face of the cutting tool facing the threaded hole has a clamping hole for the end of the clamping screw to be inserted. When the clamping screw is threaded and fixed to the inner wall of the threaded hole, the end of the clamping screw is inserted into the clamping hole, and the end face of the clamping screw and the inner wall of the limiting cavity correspond one-to-one to clamp the two sides of the cutting tool to form a positioning.

[0014] By adopting the above technical solution, when the tool tip is embedded in the limiting cavity, the clamping hole is connected to the threaded hole, the clamping screw is screwed and fixed to the inner wall of the threaded hole, the end of the clamping screw is embedded in the clamping hole, and the end face of the clamping screw and the inner wall of the limiting cavity correspond one-to-one to clamp the two sides of the tool to form a positioning, so that the tool is not easy to deviate from the inner wall of the limiting cavity during the processing of the copper tube end face, thereby improving the processing accuracy of the copper tube.

[0015] Optionally, the clamping assembly further includes a positioning piston, a positioning plate, an elastic element one, an elastic element two, and a connecting rope. The bottom wall of the clamping hole has a positioning cavity for the positioning piston to slide in. The sliding direction of the positioning piston is parallel to the axis of the threaded hole. The surface of the cutting tool has a slide rail for the positioning plate to slide in. The sliding direction of the positioning plate is parallel to the sliding direction of the positioning piston. The inner wall of the slide rail has a connecting channel that connects the slide rail and the positioning cavity. One end of the connecting rope is connected to the surface of the positioning plate, and the other end of the connecting rope passes through the connecting channel and is connected to the surface of the positioning piston. The elastic coefficient of the elastic element one is greater than [missing value]. The elastic coefficient of the second elastic element is such that the two ends of the first elastic element in the elastic direction are connected one-to-one between the surface of the positioning piston and the inner wall of the positioning cavity. The first elastic element has the elastic force to drive the positioning piston to slide towards the clamping hole. The end of the positioning piston protrudes from the inner wall of the clamping hole. The surface of the positioning plate is flush with the end face of the tool, and the connecting rope tends to be in a taut state. The surface of the limiting seat facing the slide is provided with a groove for the end of the positioning plate to be embedded. The two ends of the second elastic element in the elastic direction are connected one-to-one between the surface of the positioning plate and the inner wall of the slide. The second elastic element has the elastic force to drive the end of the positioning plate to be embedded in the groove.

[0016] By adopting the above technical solution, when the clamping screw is tightened and fixed to the inner wall of the threaded hole, the end face of the clamping screw abuts against the end face of the positioning piston and pushes the positioning piston to slide towards the positioning cavity. When the end face of the clamping screw abuts against the bottom wall of the clamping hole, the end face of the positioning piston is flush with the bottom wall of the clamping hole. At the same time, the pressure of the positioning piston on the positioning plate through the connecting rope disappears, and the elastic force of the elastic element drives the positioning plate to slide towards the slide groove. The end of the positioning plate is embedded in the slide groove. The operator can directly judge the embedding status of the clamping screw in the clamping hole by the embedding status of the end of the positioning plate in the slide groove, avoiding excessive tightening of the clamping screw and damage to the limit seat, thereby extending the service life of the machine tool.

[0017] Optionally, the clamping assembly further includes a clamping ring, the outer ring wall of which is coaxially connected to the inner wall of the clamping hole, and the inner ring wall of which can abut against the outer circumferential surface of the clamping screw to form a limiting position.

[0018] By adopting the above technical solution, when the clamping screw is tightened and fixed to the inner wall of the threaded hole, the end face of the clamping screw and the inner wall of the limiting cavity correspond one-to-one to clamp the two sides of the tool to form a positioning, and the outer peripheral surface of the clamping screw and the inner wall of the clamping hole correspond one-to-one to clamp the two sides of the clamping ring to form a limiting. When the tool is impacted and vibrated by the copper tube, the clamping ring provides a buffer space, reduces the wear between the tool and the clamping screw, and thus extends the service life of the machine tool.

[0019] Optionally, the clamping assembly further includes a sealing ring, and the inner wall of the connecting channel near the slide is provided with a sealing groove for the outer ring of the sealing ring to be embedded. The outer ring wall of the sealing ring abuts against the inner wall of the sealing groove to form a seal, and the inner ring wall of the sealing ring abuts against the outer circumferential surface of the connecting rope to form a seal. The inner wall of the connecting channel is provided with a pressure regulating channel, and the pressure regulating channel is connected to the inner cavity of the clamping ring bladder.

[0020] By adopting the above technical solution, when the elastic element drives the positioning piston to slide along the inner wall of the positioning cavity towards the clamping hole, the inner wall of the sealing ring abuts against the outer circumference of the connecting rope to form a seal, and the outer wall of the sealing ring abuts against the inner wall of the sealing groove to form a seal. The air pressure in the positioning cavity decreases, and the air in the clamping ring bladder enters the positioning cavity through the pressure regulating channel and the connecting channel. The pressure in the clamping ring bladder decreases, reducing the wear between the clamping screw and the clamping ring bladder. When the end face of the clamping screw abuts against the end face of the positioning piston and pushes the positioning piston to slide towards the positioning cavity, the air pressure in the positioning cavity increases. The air in the positioning cavity enters the inner cavity of the clamping ring bladder through the connecting channel and the pressure regulating channel. The inner wall of the clamping ring bladder is pressurized and abuts against the outer circumference of the clamping screw to form a limit, thus achieving directional pressure reduction and increase of the clamping ring bladder.

[0021] Optionally, the clamping assembly further includes an elastic element three and an opening / closing block. The inner wall of the positioning cavity has an opening / closing cavity for the opening / closing block to slide. The sliding direction of the opening / closing block is perpendicular to the sliding direction of the positioning piston. The opening / closing cavity is connected to the pressure regulating channel. The surface of the opening / closing block has an opening / closing hole. The axis of the opening / closing hole is parallel to the axis of the threaded hole, and the opening / closing hole penetrates the surface of the opening / closing block along its own axis. The two ends of the elastic element three in the elastic force direction are connected one-to-one between the inner wall of the opening / closing cavity and the surface of the opening / closing block. The elastic element three has the elastic force to drive the opening / closing block to slide towards the positioning cavity. The end of the opening / closing block protrudes from the inner wall of the positioning cavity, and the opening / closing block tends to separate the pressure regulating channel and the connecting channel. The end of the opening / closing block protruding from the positioning cavity has a guide surface. The guide surface is arc-shaped and can abut against the surface of the positioning piston and guide the opening / closing block to slide towards the pressure regulating channel. The pressure regulating channel is connected to the opening / closing hole.

[0022] By adopting the above technical solution, the elastic element drives the opening and closing block to slide towards the positioning cavity with three elastic forces. The guide surface protrudes from the inner wall of the positioning cavity, and the opening and closing hole separates the pressure regulating flow channel. When the positioning piston slides along the inner wall of the positioning cavity towards the guide surface, the guide surface abuts against the surface of the positioning piston and guides the opening and closing block to slide towards the pressure regulating flow channel. The pressure regulating flow channel connects to the opening and closing hole, thereby realizing the directional opening and closing of the pressure regulating flow channel.

[0023] Optionally, the clamping assembly further includes a spray gun, which is connected to the surface of the clamping seat, with the spray gun's outlet facing the spindle clamping end, allowing coolant to impact the copper tube to be processed surface clamped by the spindle through the spray gun's outlet.

[0024] By adopting the above technical solution, the spray gun is installed on the surface of the clamping seat, and the liquid outlet of the spray gun faces the clamping end of the spindle. The coolant impacts the copper tube to be processed surface held by the spindle through the liquid outlet of the spray gun, and carries away the fine chips adhering to the surface of the copper tube, so that the fine chips are less likely to wear the processing end of the tool, thereby extending the service life of the machine tool.

[0025] In summary, this application includes at least one of the following beneficial technical effects: The setup of the material handling assembly, clamping assembly, and milling and turning assembly enables automated processing of both ends of the copper tube along the axial direction, eliminating the need for manual tool disassembly and replacement. This improves the processing efficiency of the copper tube, shortens the processing cycle, and thus reduces the processing cost. The setup of the material handling guide rail, slider, lifting seat, material handling seat, rotating seat and three-jaw chuck allows the three-jaw chuck to clamp the processed copper tube end, and the lifting seat to slide along the slider surface in a direction away from the main shaft, thereby realizing the unloading of processed copper tubes and the automatic loading of unprocessed copper tubes, further improving the processing efficiency of copper tubes. The sliding seat, limiting seat, and cutting tool are designed so that the inner wall of the limiting cavity abuts against the surface of the cutting tool to form a limit, making it less likely for the cutting edge of the tool to deviate during the milling and turning of the copper tube end on the spindle, thereby improving the machining accuracy of the copper tube. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.

[0027] Figure 2 This is a partial structural diagram of an embodiment of this application, mainly showing the sliding cavity.

[0028] Figure 3 This is a schematic diagram of the overall structure of the material handling component in the embodiments of this application.

[0029] Figure 4 This is a schematic diagram of the overall structure of the milling and turning assembly in the embodiments of this application.

[0030] Figure 5 This is a partial cross-sectional view of the limiting seat in the embodiment of this application, mainly showing the clamping assembly.

[0031] Explanation of reference numerals in the attached drawings: 1. Machine body; 11. Mounting cavity; 12. Sliding cavity; 13. Clearance cavity; 2. Material handling assembly; 21. Material handling guide rail; 22. Slider; 23. Lifting seat; 24. Material handling seat; 25. Rotary seat; 26. Three-jaw chuck; 3. Clamping assembly; 31. Clamping seat; 32. Spindle; 33. Spray gun; 4. Turning and milling assembly; 41. Sliding seat; 411. Adjustment groove; 42. Baffle; 43. Limit seat; 431. Threaded groove; 432. Limiting cavity; 433. Threaded hole; 434. Slide groove; 4 4. Cutting tool; 441. Clamping hole; 442. Positioning cavity; 443. Slide rail; 444. Connecting flow channel; 445. Sealing groove; 446. Opening and closing cavity; 447. Pressure regulating flow channel; 45. Limiting screw; 5. Door body; 6. Clamping assembly; 61. Clamping screw; 62. Positioning piston; 63. Positioning plate; 64. Elastic component one; 65. Elastic component two; 66. Connecting rope; 67. Clamping ring; 68. Sealing ring; 69. Elastic component three; 610. Opening and closing block; 6101. Opening and closing hole; 6102. Guide surface. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] This application discloses a machine tool for processing copper tubes. (Refer to...) Figure 1 and Figure 2The copper tube processing machine tool includes a machine body 1, a material handling assembly 2, two clamping assemblies 3, and two turning and milling assemblies 4. The machine body 1 has an installation cavity 11 for processing copper tubes. A door 5 is slidably connected to the surface of the machine body 1 to close the installation cavity 11. The sliding direction of the door 5 is parallel to the length direction of the machine body 1. The two clamping assemblies 3 are slidably connected one-to-one to the inner walls of the installation cavity 11, and their sliding directions are parallel to the length direction of the machine body 1. The clamping assemblies 3 can clamp the ends of the copper tubes and drive them to rotate. The two turning and milling assemblies 4 are slidably connected at intervals to the inner walls of the installation cavity 11. The sliding direction of the turning and milling assemblies 4 is parallel to the width direction of the machine body 1. 4 is located between two clamping components 3. The milling and turning component 4 corresponds one-to-one with the clamping components 3. The milling and turning component 4 can perform milling and turning on the end of the copper tube clamped by the clamping components 3. The material taking component 2 is slidably connected to the surface of the machine body 1. The sliding direction of the material taking component 2 is parallel to the length direction of the machine body 1. The material taking component 2 can clamp the unprocessed end of the copper tube and embed it into the clamping end of one of the clamping components 3, and remove the copper tube clamped by the clamping end of the other clamping component 3. This realizes the automated milling and turning of both ends of the copper tube in the axial direction without the need for the operator to disassemble and replace the tool 44, thereby improving the processing efficiency of the copper tube, shortening the processing cycle of the copper tube, and reducing the processing cost of the copper tube.

[0034] Reference Figure 1 and Figure 2 The clamping assembly 3 includes a clamping seat 31, a main shaft 32, and a spray gun 33. The inner walls of the mounting cavities 11 facing each other are provided with sliding cavities 12 for the clamping seat 31 to slide. The sliding direction of the clamping seat 31 is parallel to the length direction of the machine body 1. One end of the main shaft 32 is rotatably connected to the end face of the clamping seat 31 facing the other clamping seat 31. The other end of the main shaft 32 can clamp the end of the copper tube and drive the copper tube to rotate. The axis of the main shaft 32 is parallel to the length direction of the machine body 1, and the axes of the two main shafts 32 coincide.

[0035] Reference Figure 1 and Figure 2 When the milling and turning assembly 4 finishes machining the end of the copper tube on the corresponding spindle 32, the two clamping seats 31 slide along the inner wall of the sliding cavity 12 toward each other, and the clamping ends of the two spindles 32 abut against each other. One spindle 32 clamping end is fitted onto the finished end of the copper tube and clamps it, while the other spindle 32 releases the unmachined end of the copper tube. The two clamping seats 31 slide along the inner wall of the sliding cavity 12 toward each other, realizing the automatic replacement of the copper tube on the two spindles 32 without the need for operators to disassemble and clamp the copper tube, thereby further improving the machining efficiency of the copper tube.

[0036] Reference Figure 1 and Figure 2The spray gun 33 is fixed to the surface of the clamping seat 31 by bolts. The liquid outlet end of the spray gun 33 faces the clamping end of the spindle 32. The coolant impacts the copper tube to be processed surface held by the spindle 32 through the liquid outlet end of the spray gun 33. While cooling the copper tube to be processed surface, it also drives the fine chips adhering to the copper tube to be processed surface, reducing the wear of the milling and turning assembly 4 on the processing end of the fine chips, thereby extending the service life of the machine tool.

[0037] Reference Figure 2 and Figure 3 The material handling assembly 2 includes a material handling guide rail 21, a slider 22, a lifting seat 23, a material handling seat 24, a rotating seat 25, and a three-jaw chuck 26. A clearance cavity 13 is provided on the top surface of the machine body 1 for the material handling assembly 2 to pass through. The clearance cavity 13 is connected to the mounting cavity 11. The material handling guide rail 21 is fixed to the top surface of the machine body 1 by bolts. The slider 22 is slidably connected to the surface of the material handling guide rail 21 facing the clearance cavity 13. The sliding direction of the slider 22 is parallel to the length direction of the machine body 1. The lifting seat 23 is slidably connected to the surface of the slider 22. The sliding direction of the lifting seat 23 is parallel to the height direction of the machine body 1. The rotating seat 25 is rotatably connected to the surface of the lifting seat 23 facing the clearance cavity 13. The rotation axis of the rotating seat 25 is parallel to the height direction of the machine body 1. In this embodiment, the picking seat 24 is a rotary cylinder. The picking seat 24 is fixed to the surface of the rotating seat 25 by bolts. The three-jaw chuck 26 is rotatably connected to the driving end of the picking seat 24. The rotation axis of the three-jaw chuck 26 is perpendicular to the rotation axis of the rotating seat 25. The rotation axis of the three-jaw chuck 26 is perpendicular to its own axis. The clamping end of the three-jaw chuck 26 can clamp the end of the copper tube.

[0038] Reference Figure 2 and Figure 3When the material handling assembly 2 is running, as the slider 22 slides along the material handling guide 21 toward the shelf containing the unprocessed copper tubes, the lifting seat 23 faces the shelf containing the unprocessed copper tubes. The lifting seat 23 slides along the surface of the slider 22 toward the shelf, and the material handling seat 24 drives the three-jaw chuck 26 to rotate. The clamping end of the three-jaw chuck 26 faces one of the ends of the unprocessed copper tubes on the shelf, and the clamping end of the three-jaw chuck 26 clamps the end of the unprocessed copper tube. The lifting seat 23 slides along the surface of the slider 22 away from the shelf. The jaw chuck 26 clamps the unprocessed copper tube end away from the shelf. The slider 22 slides along the pick-up guide 21 towards the clearance cavity 13. The lifting seat 23 is located between the two main shafts 32. The lifting seat 23 slides along the surface of the slider 22 towards the main shaft 32. The rotating seat 25 faces the main shaft 32. The rotating seat 25 rotates and drives the three-jaw chuck 26 towards one of the main shafts 32. The pick-up seat 24 drives the three-jaw chuck 26 to rotate. The axis of the copper tube clamped by the three-jaw chuck 26 coincides with the axis of the main shaft 32. The clamping seat 31 slides along the sliding cavity 13. 2. The inner wall of the sliding cavity 12 slides towards the three-jaw chuck 26. The clamping end of the spindle 32 clamps the end of the copper tube on the three-jaw chuck 26. The three-jaw chuck 26 is released, and at the same time, the rotating seat 25 rotates, causing the three-jaw chuck 26 to move towards another spindle 32. The axis of the copper tube machined on the other spindle 32 coincides with the axis of the three-jaw chuck 26. The clamping seat 31 slides along the inner wall of the sliding cavity 12 towards the three-jaw chuck 26. The three-jaw chuck 26 clamps the end of the copper tube machined on the spindle 32. The spindle 32 is released, and the clamping seat 31 slides along the inner wall of the sliding cavity 12 towards the three-jaw chuck 26. The inner wall of cavity 12 slides away from the three-jaw chuck 26, the lifting seat 23 slides away from the main shaft 32 along the surface of slider 22, the three-jaw chuck 26 clamps the processed copper tube end protruding from the top surface of the machine body 1, the slider 22 slides along the material picking guide 21 towards the shelf, the lifting seat 23 slides along the surface of slider 22 towards the shelf, the three-jaw chuck 26 places the processed copper tube on the shelf, and repeats the above actions to realize the automatic unloading of processed copper tubes and the automatic loading of unprocessed copper tubes.

[0039] Reference Figure 2 and Figure 4The milling and turning assembly 4 includes a sliding seat 41, a baffle 42, multiple limit seats 43, multiple cutters 44, and multiple limit screws 45. The sliding seat 41 is slidably connected to the bottom wall of the mounting cavity 11. The sliding direction of the sliding seat 41 is parallel to the width direction of the machine body 1. Two sliding seats 41 are located between two spindles 32. The surface of the limit seats 43 is provided with multiple threaded grooves 431 for tightening the limit screws 45. The surface of the sliding seat 43 is also provided with multiple adjusting grooves 411 for the ends of the limit screws 45 to be embedded. The adjusting grooves 411 correspond one-to-one with the threaded grooves 431. The length of the adjusting groove 411 is... The length direction of the sliding seat 41 is parallel to the width direction of the body 1, and the arrangement direction of the adjustment groove 411 is parallel to the length direction of the body 1. Multiple limit seats 43 are placed on the surface of the sliding seat 41 in sequence at intervals. The arrangement direction of the limit seats 43 is parallel to the width direction of the body 1. When the limit screw 45 is screwed and fixed in the inner wall of the threaded groove 431, the end of the limit screw 45 is embedded in the adjustment groove 411 and abuts against it. The end face of the nut of the limit screw 45 and the surface of the sliding seat 41 correspond one-to-one to clamp the two ends of the limit seat 43 in the height direction, so as to realize the precise adjustment of the distance between the multiple limit seats 43 on the surface of the sliding seat 41.

[0040] Reference Figure 2 and Figure 4 The limiting seat 43 has a limiting cavity 432 on its surface facing the spindle 32 for the end of the tool 44 to be inserted. The inner wall of the limiting cavity 432 abuts against the surface of the tool 44 to form a limit. The cutting edge of the tool 44 protrudes from the surface of the limiting seat 43 and abuts against the end of the copper tube on the spindle 32 for milling. One end of the baffle 42 is fixed to the surface of one of the sliding seats 41 by bolts, and the other end of the baffle 42 protrudes from the top surface of the limiting seat 43. The baffle 42 is located between the two sliding seats 41 to prevent the fine chips generated by the tool 44 in the milling of the copper tube from impacting the cutting edge of the tool 44 on the other milling assembly 4, thereby reducing the wear on the tool 44 and extending the service life of the machine tool.

[0041] Reference Figure 4 and Figure 5A clamping assembly 6 is installed between the limiting seat 43 and the cutting tool 44. The clamping assembly 6 includes a clamping screw 61, a positioning piston 62, a positioning plate 63, an elastic element 64, an elastic element 65, a connecting rope 66, a clamping ring 67, a sealing ring 68, an elastic element 69, and an opening and closing block 610. The number of clamping screws 61 can be one, two, or more. In this embodiment, the number of clamping screws 61 is more than one. The surface of the limiting seat 43 is provided with a plurality of threaded holes 433 for threaded connection of the clamping screws 61. The arrangement of the threaded holes 433 is as follows: The threaded hole 433 is parallel to the width direction of the machine body 1 and connects to the limiting cavity 432. The end face of the tool 44 facing the threaded hole 433 is provided with a clamping hole 441 for the end of the clamping screw 61 to be inserted. When the clamping screw 61 is screwed and fixed to the inner wall of the threaded hole 433, the end of the clamping screw 61 is inserted into the clamping hole 441, and the end face of the clamping screw 61 and the inner wall of the limiting cavity 432 correspond one-to-one to clamp the two sides of the tool 44 to form a positioning, so that the tool 44 is not easy to deviate during the processing of the copper tube end, thereby improving the processing quality of the copper tube.

[0042] Reference Figure 4 and Figure 5 The positioning piston 62 can be made of rubber or silicone. In this embodiment, the positioning piston 62 is made of rubber, which has a certain deformation capability. The bottom wall of the clamping hole 441 has a positioning cavity 442 for the positioning piston 62 to slide. The sliding direction of the positioning piston 62 is parallel to the height direction of the machine body 1. The surface of the cutter 44 facing the opening of the limiting cavity 432 has a slide rail 443 for the positioning plate 63 to slide. The sliding direction of the positioning plate 63 is parallel to the height direction of the machine body 1. The inner wall of the slide rail 443 has a connecting flow channel 444. The connecting channel 444 connects the slide 443 and the positioning cavity 442. One end of the connecting rope 66 is connected to the surface of the positioning plate 63 facing the connecting channel 444, and the other end of the connecting rope 66 passes through the connecting channel 444 and is connected to the surface of the positioning piston 62. The elastic element 1 64, elastic element 2 65 and elastic element 3 69 can be compression springs or tension springs. In the embodiment of this application, elastic element 1 64, elastic element 2 65 and elastic element 3 69 are all compression springs, which have a certain deformation capacity, and the elastic coefficient of elastic element 1 64 is greater than the elastic coefficient of elastic element 2 65.

[0043] Reference Figure 4 and Figure 5 One end of the elastic element 64 in the elastic direction is connected to the surface of the positioning piston 62, and the other end of the elastic element 64 in the elastic direction is connected to the inner wall of the positioning cavity 442. The elastic element 64 has the elastic force to drive the positioning piston 62 to slide towards the clamping hole 441. The end of the positioning piston 62 protrudes from the inner wall of the clamping hole 441. The surface of the positioning plate 63 is flush with the end face of the cutter 44, and the connecting rope 66 tends to be in a taut state.

[0044] Reference Figure 4 and Figure 5 The limiting seat 43 has a groove 434 on its surface facing the slide rail 443 for the end of the positioning plate 63 to be inserted. One end of the elastic element 65 in the elastic direction is connected to the surface of the positioning plate 63, and the other end of the elastic element 65 in the elastic direction is connected to the inner wall of the slide rail 443. The elastic element 65 has the tendency to drive the end of the positioning plate 63 to be inserted into the groove 434. When the clamping screw 61 is screwed into the inner wall of the threaded hole 433, the end face of the clamping screw 61 abuts against the end face of the positioning piston 62 and pushes the positioning piston 62 toward the positioning cavity 442. As the positioning piston 62 slides, the pressure on the positioning plate 63 via the connecting rope 66 disappears. The elastic element 65 then drives the positioning plate 63 to slide along the inner wall of the slide rail 443 towards the positioning groove. The end of the positioning plate 63 is embedded in the positioning groove and abuts against the bottom wall of the positioning groove. The operator can directly judge the embedding status of the end of the clamping screw 61 in the clamping hole 441 based on the embedding status of the end of the positioning plate 63 in the positioning groove, thus avoiding the operator from excessively tightening the clamping screw 61 and damaging the limit seat 43, thereby further improving the service life of the machine tool.

[0045] Reference Figure 4 and Figure 5 The clamping ring 67 can be made of rubber or silicone. In this embodiment, the clamping ring 67 is made of rubber, which has a certain deformation capability. The outer ring wall of the clamping ring 67 is coaxially fixed to the inner wall of the clamping hole 441. The inner ring wall of the clamping ring 67 can abut against the outer circumferential surface of the clamping screw 61 to form a limit. When the tool 44 is impacted and swings by the copper tube, the clamping ring 67 provides a buffer, reducing the wear between the tool 44 and the clamping screw 61, thereby extending the service life of the machine tool.

[0046] Reference Figure 4 and Figure 5 The sealing ring 68 can be made of rubber or silicone. In this embodiment, the sealing ring 68 is made of rubber, which has a certain deformation capability. The inner wall of the connecting channel 444 near the slide 443 is provided with a sealing groove 445 for the outer ring of the sealing ring 68 to be embedded. The outer ring wall of the sealing ring 68 abuts against the inner wall of the sealing groove 445 to form a seal, and the inner ring wall of the sealing ring 68 abuts against the outer circumferential surface of the connecting rope 66 to form a seal, thereby achieving a seal on the connecting channel 444. The inner wall of the connecting channel 444 is provided with a pressure regulating channel 447, which is located between the positioning cavity 442 and the slide 443. The pressure regulating channel 447 is connected to the inner cavity of the clamping ring 67.

[0047] Reference Figure 4 and Figure 5The inner wall of the positioning cavity 442 is provided with an opening and closing cavity 446 for the opening and closing block 610 to slide. The sliding direction of the opening and closing block 610 is parallel to the width direction of the body 1. The opening and closing cavity 446 is connected to the pressure regulating channel 447. The surface of the opening and closing block 610 is provided with an opening and closing hole 6101. The axis of the opening and closing hole 6101 is parallel to the height direction of the body 1. The opening and closing hole 6101 passes through both sides of the opening and closing block 610 along its own axis. One end of the elastic element 69 in the elastic direction is connected to the bottom wall of the opening and closing cavity 446, and the other end of the elastic element 69 in the elastic direction is connected to the end face of the opening and closing block 610. The elastic element 69 has the elasticity to drive the opening and closing block 610 to slide towards the positioning cavity 442. The end of the opening and closing block 610 protrudes from the inner wall of the positioning cavity 442. The opening and closing block 610 tends to separate the pressure regulating channel 447 and the connecting channel 444.

[0048] Reference Figure 4 and Figure 5 The end of the opening / closing block 610 protruding from the positioning cavity 442 is provided with a guide surface 6102, which is arc-shaped. When the positioning piston 62 slides along the inner wall of the positioning cavity 442 away from the clamping hole 441, the guide surface 6102 abuts against the end face of the positioning piston 62 and guides the opening / closing block 610 to slide towards the connecting flow channel 444. The opening / closing hole 6101 connects to the pressure regulating flow channel 447, and the air pressure in the positioning cavity 442 increases. The air in the positioning cavity 442 passes through the connecting flow channel 444, the opening / closing hole 6101 and the pressure regulating flow channel 447 and enters the inner cavity of the clamping ring 67. The inner ring wall of the clamping ring 67 is pressurized and abuts against the outer circumferential surface of the clamping screw 61 to form a limit. When the elastic element 64 elastically drives... When the positioning piston 62 slides along the inner wall of the positioning cavity 442 toward the clamping hole 441, the air pressure in the positioning cavity 442 decreases. The air in the clamping ring 67 enters the positioning cavity 442 through the pressure regulating channel 447, the opening and closing hole 6101, and the connecting channel 444. The pressure in the clamping ring 67 decreases, reducing the wear between the clamping screw 61 and the clamping ring 67. The pressure of the positioning piston 62 on the guide surface 6102 disappears. The elastic force of the elastic element 69 drives the opening and closing block 610 to slide toward the positioning cavity 442. The guide surface 6102 protrudes from the inner wall of the positioning cavity 442, and the opening and closing block 610 separates the pressure regulating channel 447 and the connecting channel 444, realizing the directional pressure reduction and increase of the clamping ring 67.

[0049] The implementation principle of a copper tube processing machine tool according to an embodiment of this application is as follows: the milling assembly 4 corresponds one-to-one with the spindle 32. The operator installs the milling tools 44 required for milling both ends of the copper tube and the limiting seats 43 accordingly. The material handling assembly 2 clamps the unprocessed end of the copper tube and embeds it into the end of one of the spindles 32. The sliding seat 41 slides along the bottom wall of the mounting cavity 11 towards the spindle 32. The cutting edge of the tool 44 faces the end of the copper tube clamped by the spindle 32. The spindle 32 drives the copper tube to rotate around its own axis. The tool 44 performs milling processing on the end of the copper tube. When the milling processing of the end of the copper tube is completed, the sliding seat 41 slides along the bottom wall of the mounting cavity 11 away from the spindle 32. The two clamping seats 31 move towards each other along the surface of the machine body 1. The two spindles 32 slide in the direction of the machine body 1, and the clamping ends of the two spindles 32 abut against each other. The other spindle 32 is coaxially sleeved on the processed end of the copper tube and clamped. The two clamping seats 31 slide along the surface of the machine body 1 in a direction away from each other. The other sliding seat 41 slides along the surface of the machine body 1 in a direction closer to the spindle 32. The tool 44 performs milling and turning on the unprocessed end of the copper tube. The material taking component 2 clamps the unprocessed copper tube and embeds it into the end of one of the spindles 32, and removes the processed copper tube from the other spindle 32. This realizes automated processing of both ends of the copper tube in the axial direction, without the need for the operator to disassemble and replace the tool 44, thereby improving the processing efficiency of the copper tube, shortening the processing cycle of the copper tube, and reducing the processing cost of the copper tube.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A machine tool for processing copper tubes, characterized in that: The machine includes a body (1), a material handling assembly (2), at least two clamping assemblies (3), and at least two milling and turning assemblies (4). Each clamping assembly (3) includes a clamping seat (31) and a spindle (32). The machine body (1) has sliding cavities (12) on its opposite end faces for the clamping seat (31) to slide. One end of the spindle (32) is rotatably connected to the surface of the clamping seat (31), and the other end of the spindle (32) can clamp the end of a copper tube and drive the copper tube to rotate. The axes of the two spindles (32) coincide. At least two milling and turning assemblies (4) are slidably connected to the surface of the machine body (1) at intervals. The milling and turning assembly (4) is located between two spindles (32). The sliding direction of the milling and turning assembly (4) is perpendicular to the axis of the spindle (32). The milling and turning assembly (4) corresponds one-to-one with the spindle (32) and mills the ends of the copper tubes on the spindle (32). The material taking assembly (2) is slidably connected to the surface of the machine body (1). The sliding direction of the material taking assembly (2) is parallel to the axis of the spindle (32). The material taking assembly (2) can clamp the unprocessed ends of the copper tubes and embed them into the ends of one of the spindles (32), and remove the processed copper tubes from the other spindle (32).

2. The copper tube processing machine tool according to claim 1, characterized in that: The material handling assembly (2) includes a material handling guide rail (21), a slider (22), a lifting seat (23), a material handling seat (24), a rotating seat (25), and a three-jaw chuck (26). The material handling guide rail (21) is connected to the surface of the machine body (1). The slider (22) is slidably connected to the surface of the material handling guide rail (21). The sliding direction of the slider (22) is parallel to the axis of the main shaft (32). The lifting seat (23) is slidably connected to the surface of the slider (22). The sliding direction of the lifting seat (23) is perpendicular to the axis of the main shaft (32). The rotating seat... (25) Rotatably connected to the surface of the lifting seat (23) facing the main shaft (32), the rotation axis of the rotating seat (25) and the sliding direction of the lifting seat (23) are parallel to each other, the picking seat (24) is connected to the surface of the picking seat (24), the three-jaw chuck (26) is rotatably connected to the surface of the picking seat (24), the rotation axis of the three-jaw chuck (26) and the rotation axis of the rotating seat (25) are perpendicular to each other, the self-axis of the three-jaw chuck (26) and the rotation axis are perpendicular to each other, and the clamping end of the three-jaw chuck (26) can clamp the end of the copper tube.

3. The copper tube processing machine tool according to claim 1, characterized in that: The milling and turning assembly (4) includes a sliding seat (41), multiple limiting seats (43) and multiple cutting tools (44). The sliding seat (41) is slidably connected to the surface of the machine body (1). The multiple limiting seats (43) are spaced apart on the surface of the sliding seat (41). The arrangement direction of the limiting seats (43) is parallel to the sliding direction of the sliding seat (41). The end face of the limiting seat (43) facing the spindle (32) is provided with a limiting cavity (432) for the end of the cutting tool (44) to be inserted. The inner wall of the limiting cavity (432) abuts against the surface of the cutting tool (44) to form a limit. The cutting edge of the cutting tool (44) can abut against the end of the copper tube on the spindle (32) and perform milling and turning.

4. The copper tube processing machine tool according to claim 3, characterized in that: The milling and turning assembly (4) also includes a baffle (42), one end of which is connected to the surface of one of the sliding seats (41), the other end of which protrudes from the top surface of the limiting seat (43), and the baffle (42) is located between the two sliding seats (41).

5. The copper tube processing machine tool according to claim 3, characterized in that: A clamping assembly (6) is connected between the limiting seat (43) and the cutting tool (44). The clamping assembly (6) includes a clamping screw (61). The surface of the limiting seat (43) is provided with a threaded hole (433) for the clamping screw (61) to be threadedly connected. The threaded hole (433) is connected to the limiting cavity (432). The end face of the cutting tool (44) facing the threaded hole (433) is provided with a clamping hole (441) for the end of the clamping screw (61) to be inserted. When the clamping screw (61) is threaded and fixed to the inner wall of the threaded hole (433), the end of the clamping screw (61) is inserted into the clamping hole (441), and the end face of the clamping screw (61) and the inner wall of the limiting cavity (432) are respectively clamped to form a positioning on both sides of the cutting tool (44).

6. The copper tube processing machine tool according to claim 5, characterized in that: The clamping assembly (6) further includes a positioning piston (62), a positioning plate (63), an elastic element one (64), an elastic element two (65), and a connecting rope (66). The bottom wall of the clamping hole (441) has a positioning cavity (442) for the positioning piston (62) to slide. The sliding direction of the positioning piston (62) is parallel to the axis of the threaded hole (433). The surface of the cutting tool (44) has a slide rail (443) for the positioning plate (63) to slide. The sliding direction of the positioning plate (63) and the sliding direction of the positioning piston (62) are parallel to each other. The inner wall of the slide (443) is provided with a connecting channel (444), which connects the slide (443) and the positioning cavity (442). One end of the connecting rope (66) is connected to the surface of the positioning plate (63), and the other end of the connecting rope (66) passes through the connecting channel (444) and is connected to the surface of the positioning piston (62). The elastic element (6) The elastic coefficient of the first elastic element (64) is greater than that of the second elastic element (65). The two ends of the first elastic element (64) in the elastic force direction are connected one-to-one between the surface of the positioning piston (62) and the inner wall of the positioning cavity (442). The first elastic element (64) has the elastic force to drive the positioning piston (62) to slide towards the clamping hole (441). The end of the positioning piston (62) protrudes from the inner wall of the clamping hole (441). The surface of the positioning plate (63) is flush with the tool (44). The end faces are flush, and the connecting rope (66) tends to be in a taut state. The limiting seat (43) has a groove (434) on the surface facing the slide (443) for the end of the positioning plate (63) to be embedded. The two ends of the elastic element (65) in the elastic direction are connected one-to-one between the plate surface of the positioning plate (63) and the inner wall of the slide (443). The elastic element (65) has the tendency to elastically drive the end of the positioning plate (63) to be embedded in the groove (434).

7. The copper tube processing machine tool according to claim 6, characterized in that: The clamping assembly (6) further includes a clamping ring (67), the outer ring wall of which is coaxially connected to the inner wall of the clamping hole (441), and the inner ring wall of the clamping ring (67) can abut against the outer peripheral surface of the clamping screw (61) to form a limit.

8. The copper tube processing machine tool according to claim 7, characterized in that: The clamping assembly (6) also includes a sealing ring (68). The inner wall of the connecting channel (444) near the slide (443) is provided with a sealing groove (445) for the outer ring of the sealing ring (68) to be embedded. The outer ring wall of the sealing ring (68) abuts against the inner wall of the sealing groove (445) to form a seal. The inner ring wall of the sealing ring (68) abuts against the outer circumference of the connecting rope (66) to form a seal. The inner wall of the connecting channel (444) is provided with a pressure regulating channel (447), which connects to the inner cavity of the clamping ring bladder (67).

9. The copper tube processing machine tool according to claim 8, characterized in that: The clamping assembly (6) further includes an elastic element three (69) and an opening and closing block (610). The inner wall of the positioning cavity (442) is provided with an opening and closing cavity (446) for the opening and closing block (610) to slide. The sliding direction of the opening and closing block (610) is perpendicular to the sliding direction of the positioning piston (62). The opening and closing cavity (446) is connected to the pressure regulating channel (447). The surface of the opening and closing block (610) is provided with an opening and closing hole (6101). The axis of the opening and closing hole (6101) is parallel to the axis of the threaded hole (433), and the opening and closing hole (6101) penetrates the surface of the opening and closing block (610) along its own axis. The two ends of the elastic element three (69) in the elastic direction are connected one-to-one to the inner wall of the opening and closing cavity (446) and the opening and closing block (610). Between the surfaces of the block (610), the elastic element three (69) has an elastic force that drives the opening and closing block (610) to slide toward the positioning cavity (442). The end of the opening and closing block (610) protrudes from the inner wall of the positioning cavity (442), and the opening and closing block (610) tends to separate the pressure regulating channel (447) and the connecting channel (444). The end of the opening and closing block (610) protruding from the positioning cavity (442) is provided with a guide surface (6102). The guide surface (6102) is in the shape of a circular arc protrusion. The guide surface (6102) can abut against the surface of the positioning piston (62) and guide the opening and closing block (610) to slide toward the pressure regulating channel (447), and the pressure regulating channel (447) connects to the opening and closing hole (6101).

10. The copper tube processing machine tool according to claim 1, characterized in that: The clamping assembly (3) also includes a spray gun (33), which is connected to the surface of the clamping seat (31) and the liquid outlet of the spray gun (33) faces the clamping end of the spindle (32). The coolant can impact the copper tube to be processed surface clamped by the spindle (32) through the liquid outlet of the spray gun (33).

Images