A profile four-side R corner machine

Abstract

The present application relates to the technical field of profile edge milling and rounding, and discloses a profile four-edge R-angle machine, which comprises a machine tool and a spacing adjustment system, and mirror image left and right milling systems are arranged on the spacing adjustment system; an oil supplementing and chip storage assembly and a chip cleaning assembly are arranged between the left and right milling systems and located inside the machine tool; the left and right milling systems are composed of symmetrically arranged left and right milling systems; the left and right milling systems are each composed of a sliding seat, a milling mounting frame and an adjustable milling assembly; the profile is clamped by the left and right milling systems moving towards each other; for different sizes of profiles, the Y-axis position or the X-axis gap of the milling processing part needs to be adjusted to meet the clamping requirement, realize the four-corner positioning of the profile, and when the rotating cutter head contacts the edge of the profile and cuts it, the straight-angle edge of the profile is gradually cut into a round corner due to the shape of the cutter head and the trajectory of the movement, and multi-edge synchronous processing is realized.

Description

Technical Field

[0001] The invention relates to the technical field of profile edge milling and rounding, and more particularly to a profile four-side R-angle machine. Background Art

[0002] In the field of profile processing technology, four-sided R-angle processing equipment is the key equipment for achieving the transition of rounded corners of profile edges. Its technological development has mainly undergone an evolutionary process from manual grinding to mechanical milling. The CNC milling processing solution commonly used in the existing technology (such as the profile avoidance R-angle forming machine disclosed in CN216541042U) realizes the mechanized processing of profile R-angle to a certain extent by constructing an equipment architecture including an X / Y-axis motion platform, a clamping and flipping mechanism, and a drive cutting system. Although this technical solution improves the clamping efficiency through structural designs such as pneumatic clamping devices and flip positioning plates, it is essentially still a single-tool sequential processing mode and has the following technical defects:

[0003] (1) Insufficient stability of machining accuracy: Since a single milling cutter is used to continuously machine four edges, the tool wear increases cumulatively, resulting in a significant decrease in the consistency of the fillet size in the later stages of machining, making it difficult to meet the process requirements of high-precision profiles;

[0004] (2) Processing efficiency bottlenecks: Existing equipment is limited by the tool reversing time and the high proportion of idle stroke. When processing long profiles, the effective cutting time only accounts for 40% to 60% of the processing cycle;

[0005] In response to the above technical problems, the industry urgently needs to develop a new R-angle processing equipment with multi-tool collaborative processing capabilities and equipped with an online wear compensation system to break through the limitations of existing technologies in production efficiency, processing accuracy and process adaptability. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a four-side R-angle machine for profiles to solve the problems existing in the above-mentioned background technology of how to solve the problems of large wear influence of continuous working of tools and low efficiency of multilateral synchronous processing.

[0007] The present invention provides the following technical solution: a profile four-side R-angle machine, comprising a machine tool and a spacing adjustment system, wherein left and right milling systems are mirror-imaged on the spacing adjustment system; an oil replenishment and chip storage assembly and a chip cleaning assembly located inside the machine tool are disposed between the left and right milling systems; the left and right milling systems are composed of symmetrically arranged left and right milling systems; and both left and right milling systems are composed of a slide, a milling mounting frame, and an adjustable milling assembly;

[0008] The slide transmission is arranged on the spacing adjustment system, and the middle of the top is fixedly connected to the milling mounting frame. The front and rear sides of the milling mounting frame are provided with two sets of adjustable milling assemblies arranged in a central symmetrical manner. The adjustable milling assembly consists of a multi-directional adjustment assembly and a milling processing part, wherein the multi-directional adjustment assembly is assembled on the outside of the milling mounting frame, and the output end of the milling processing part faces inward; the four milling processing parts correspond to the four edges of the profile respectively; and the milling processing part is equipped with a lubrication supply assembly;

[0009] The milling processing part includes a box body, a cutter head and a positioning wheel. The positioning wheels are provided on the front and rear sides of the cutter head. The positioning wheel is provided with a circumferentially distributed conical protrusion on one side wall close to the box body. During the rotation of the positioning wheel, the piston rod in the lubrication supply assembly is periodically pressed.

[0010] The oil replenishment and chip storage assembly consists of a main cavity, a dynamic top cover, a guide slider, an inclined rail linkage rod and a floating piston plate, wherein the main cavity is fixedly installed inside the machine tool and a dynamic top cover is movably provided on the top of the inner cavity. The four corners of the top of the dynamic top cover are fixedly connected to the guide slider, one end of the inclined rail linkage rod is fixedly connected to the slide seat and the other end is embedded in the inclined slide rail of the guide slider, the bottom wall of the dynamic top cover is equipped with a floating piston plate through a connecting rod, and the floating piston plate and the bottom wall of the main cavity together enclose a variable liquid cavity.

[0011] Furthermore, the milling processing part also includes a servo motor, which is arranged in the middle of the box body. The output shaft of the servo motor passes through the box body and is coaxially assembled with the cutter disc. The positioning wheel is rotatably connected to the box body through a bearing.

[0012] Furthermore, a chip storage chamber is formed between the dynamic top cover and the floating piston plate, and a metal chip collection trough can be placed above the floating piston plate; and a stop valve is connected to the side wall of the variable liquid chamber.

[0013] Furthermore, the lubrication supply assembly includes a heating chamber, an oil pipe, a voltage-variable flow control pipe, a high-pressure oil pipe, an oil spray cover, a supply pipe, a piston rod and a spring, wherein the heating chamber is fixedly installed inside the box body, and its bottom end is sealedly connected to the oil pipe, and the oil pipe adopts a retractable structure and extends downward to connect to the variable liquid chamber; the voltage-variable flow control pipe is also installed inside the box body, and a partition with a through hole is provided inside the voltage-variable flow control pipe, which divides the interior of the voltage-variable flow control pipe into two chambers, a transmission chamber and a voltage-variable chamber; one end of the piston rod is inserted into the transmission chamber of the voltage-variable flow control pipe and is connected to the spring inside the same, and the other end extends through the box body to the positioning wheel and is tightly attached to the same; the voltage-variable chamber of the voltage-variable flow control pipe is connected to the high-pressure oil pipe and the supply pipe respectively through two one-way valves, wherein the high-pressure oil pipe extends to and is connected to the oil spray cover, and the supply pipe extends to the bottom position of the heating chamber cavity.

[0014] Furthermore, the cutter disc and the positioning wheel are arranged coplanarly, and a hydraulic cylinder is provided at the bottom of the servo motor.

[0015] Furthermore, the milling processing part also includes an oil baffle and an infrared detector, wherein the oil baffle is fixedly installed at the front and rear ends of the box and is arranged at an angle, and its lower end extends to the vicinity of the positioning wheel but does not interfere with the contact area between the positioning wheel and the profile; an infrared detector is provided on the inner wall of the box near the bottom edge of the positioning wheel, which is used to detect whether the profile is in place, and the output end of the infrared detector is electrically connected to the input end of the control system.

[0016] Furthermore, the lubrication supply assembly also includes an oil pump, which connects the pressure-changing chamber of the pressure-changing flow control tube with the heating chamber, and the input end of the oil pump is electrically connected to the output end of the control system.

[0017] Furthermore, the multi-directional adjustment assembly consists of a first cylinder, a feed slide and a second cylinder, wherein the first cylinder is installed on the top and bottom edges of the outside of the milling mounting frame, the telescopic end of the first cylinder is connected to the outer edge of the feed slide, the second cylinder is installed on the outer edge of the feed slide, and the telescopic end of the second cylinder is connected to the box.

[0018] Furthermore, the left and right edges of the dynamic top cover are provided with blanking ports, the top wall of the dynamic top cover adopts an inclined structure with a low outside and a high inside, and a chip cleaning assembly is provided above the dynamic top cover.

[0019] Furthermore, the chip cleaning assembly is composed of a bellows, a drainage pipe and a support frame, wherein the bellows is sealed and connected to the middle part of the dynamic top cover and communicated with it, the front and rear sides of the bellows are respectively connected to the drainage pipes, the cover plate is sealed and embedded in the blanking openings on the front and rear sides of the dynamic top cover, the drainage pipe and the cover plate are fixedly installed on the main cavity through the support frame, and the outer end of the drainage pipe is communicated with the negative pressure absorption device.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention is provided with left and right milling systems, which facilitates the clamping of the profile by moving the left and right milling systems toward each other when the profile is suspended; for profiles of different sizes, the Y-axis position or X-axis gap of the milling processing part needs to be adjusted to meet the clamping requirements, so as to achieve the positioning of the four corners of the profile, and the cutter head is driven to rotate by the servo motor. When the rotating cutter head contacts and cuts the edge of the profile, due to the shape of the cutter head and the trajectory of its movement, it will gradually cut the right-angled edges of the edge of the profile into rounded corners, thereby realizing multilateral synchronous processing.

[0022] 2. The present application is provided with positioning wheels, lubrication supply assembly and oil supplement and scrap storage assembly, which is beneficial to the left and right milling systems when they are close to each other, the inclined rail linkage rod is pressed down through the inclined sliding groove of the guide block, driving the guide block, dynamic top cover, floating piston plate and metal scrap collecting groove to sink, compressing the variable liquid cavity, and the lubricating oil is lifted after preheating in the heating cabin to improve the lubricity; the profile traction makes the positioning wheel rotate, and the back convex periodically presses the piston rod, and the spring makes the variable pressure control flow pipe produce pressure pulsation, the oil in the heating cabin is sprayed to the surface of the positioning wheel through the supply pipe and high-pressure oil pipe, and the cutting efficiency of the cutter head is improved and the wear is reduced, realizing the effective utilization of resources.

[0023] 3. The present application is provided with oil supplement and scrap storage assembly and scrap removal assembly, which is beneficial to the equipment reset, the bidirectional screw rod drives the left and right milling systems to separate, the inclined rail linkage rod drives the guide block, dynamic top cover, floating piston plate and metal scrap collecting groove to move up through the inclined sliding groove of the guide block, the cover plate closes the material falling port to form a closed metal scrap collecting groove storage cavity, and the negative pressure absorption device sucks the metal scrap collecting groove scrap through the drainage pipe and recycles through the corrugated pipe, realizing the centralized treatment of waste materials. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0025] Figure 2 It is a schematic diagram of the overall structure and its partial section of the present application.

[0026] Figure 3 It is a schematic diagram of the Figure 2 remaining structure of the peeling machine and the spacing adjustment assembly after part of the components.

[0027] Figure 4 It is a schematic diagram of the connection structure of the slide, milling mounting frame, multidirectional adjustment assembly, milling processing part and lubrication supply assembly of the present application.

[0028] Figure 5 It is a schematic diagram of the Figure 4 structure in A of the present application.

[0029] Figure 6 It is a schematic diagram of the Figure 4 right side view of the structure of the present application.

[0030] Figure 7 It is a schematic diagram of the left side view of the structure of the present application. Figure 4

[0031] Figure 8 It is a schematic diagram of the connection structure of the slide, oil supplement and scrap storage assembly and scrap removal assembly of the present application.

[0032] Figure 9 ​It is a schematic diagram of the connection structure of the oil replenishment and chip storage assembly and the chip cleaning assembly of the present invention.

[0033] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at point B in the middle.

[0034] The accompanying drawings are marked as follows: 1. machine tool; 2. spacing adjustment assembly; 201. bidirectional screw; 202. reducer; 203. reversible motor; 3. slide; 4. milling mounting frame; 5. multidirectional adjustment assembly; 501. first cylinder; 502. feed slide; 503. second cylinder; 6. milling processing part; 601. box; 602. servo motor; 603. cutter head; 604. positioning wheel; 605. oil baffle; 606. infrared detector; 7. lubrication supply assembly; 701. heating chamber; 7 02. Oil pipeline; 703. Voltage-changing flow control tube; 704. High-pressure oil pipe; 705. Oil spray cover; 706. Supply pipe; 707. Piston rod; 708. Spring; 709. Oil pump; 8. Oil supply and chip storage assembly; 801. Main cavity; 802. Dynamic top cover; 803. Guide slider; 804. Inclined rail linkage rod; 805. Floating piston plate; 806. Metal chip collection trough; 9. Chip cleaning assembly; 901. Bellows; 902. Drainage pipe; 903. Support frame; 904. Cover plate. DETAILED DESCRIPTION

[0035] The technical solutions of the present invention will be described clearly and completely below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The four-sided R-angle machine for profiles involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] Reference Figure 1-10 The present invention provides a profile four-side R angle machine, comprising a machine tool 1 and a spacing adjustment system, wherein the spacing adjustment system is provided with left and right milling systems in mirror image; an oil supply and chip storage assembly 8 and a chip cleaning assembly 9 located inside the machine tool 1 are provided between the left and right milling systems;

[0037] The left and right milling systems are composed of symmetrically arranged left and right milling systems; both left and right milling systems are composed of a slide 3, a milling mounting frame 4 and an adjustable milling assembly;

[0038] The transmission of the slide 3 is set on the spacing adjustment system, and the middle of its top is fixedly connected to the milling mounting frame 4. Two sets of adjustable milling assemblies arranged in a central symmetrical manner are set on the front and rear sides of the milling mounting frame 4. The adjustable milling assembly consists of a multi-directional adjustment assembly 5 and a milling processing part 6, wherein the multi-directional adjustment assembly 5 is assembled on the outer side of the milling mounting frame 4, and the output end of the milling processing part 6 faces the inside; the four milling processing parts 6 correspond to the four edges of the profile respectively to realize synchronous rounding processing; the milling processing part 6 is equipped with a lubrication supply assembly 7.

[0039] In this embodiment, it should be specifically explained that the spacing adjustment system is a spacing adjustment assembly 2, which includes a bidirectional screw 201, a reducer 202 and a reversible motor 203, wherein the bidirectional screw 201 is rotatably mounted in the middle of the machine tool 1 and extends along the length direction, and either end of the bidirectional screw 201 is equipped with a reducer 202 connected thereto, and a reversible motor 203 is installed next to the reducer 202; the reversible motor 203 can transmit the driving torque to the reducer 202, and drive the bidirectional screw 201 to perform forward and reverse spinning motion through the reducer 202; wherein the forward and reverse spinning motions are respectively rotations in the clockwise and counterclockwise directions along the axis; other forms of spacing adjustment systems can be used as an alternative, as long as the requirements for the opposite or reverse displacement of the left and right milling systems are met;

[0040] The top wall of the machine tool 1 is provided with a track extending along its length. The front and rear ends of the slide 3 are slidably engaged with the track. The bottom of the slide 3 is threadedly engaged with the bidirectional screw 201. The surface of the bidirectional screw 201 is provided with a mirror-image thread, which drives the left and right milling systems to achieve opposite or opposite displacement when the bidirectional screw 201 rotates.

[0041] In this article, all the positional relationships we discuss about front, back, left, and right are based on Figure 1-2 These directions are defined by the perspective presented. They have no actual geographical or physical meaning. They are merely a reference framework to help readers understand the content of the article more intuitively. In this way, we can more clearly show the relative position relationship between the various parts, making the entire discussion process easier to understand and follow. Please note that this custom direction identification is only for internal use in this article and does not represent any absolute direction or position in the real world.

[0042] Reference Figure 2-7 The multi-directional adjustment assembly 5 consists of a first cylinder 501, a feed slide 502, and a second cylinder 503. The first cylinder 501 is mounted on the top and bottom edges of the outer side of the milling mounting frame 4. The telescopic end of the first cylinder 501 is connected to the outer edge of the feed slide 502. The second cylinder 503 is mounted on the outer edge of the feed slide 502, and the telescopic end of the second cylinder 503 is connected to the box 601.

[0043] The milling section 6 includes a housing 601, a servo motor 602, a cutter head 603, and a positioning wheel 604. The servo motor 602 is disposed in the middle of the housing 601. The output shaft of the servo motor 602 passes through the housing 601 and is coaxially assembled with the cutter head 603. Positioning wheels 604 are provided on the front and rear sides of the cutter head 603 and are rotatably connected to the housing 601 via bearings.

[0044] The oil replenishing and chip storage assembly 8 consists of a main cavity 801, a dynamic top cover 802, a guide slider 803, an inclined rail linkage rod 804 and a floating piston plate 805, wherein the main cavity 801 is fixedly installed inside the machine tool 1 and a dynamic top cover 802 is movably provided on the top of its inner cavity. The four corners of the top of the dynamic top cover 802 are fixedly connected to the guide slider 803, one end of the inclined rail linkage rod 804 is fixedly connected to the slide 3 and the other end is embedded in the inclined slide rail of the guide slider 803, and the bottom wall of the dynamic top cover 802 is equipped with a floating piston plate 805 through a connecting rod. The floating piston plate 805 and the bottom wall of the main cavity 801 together enclose a variable liquid cavity; in addition, a chip storage cavity is formed between the dynamic top cover 802 and the floating piston plate 805, and a metal chip collection trough 806 can be placed above the floating piston plate 805; the side wall of the variable liquid cavity is connected to a stop valve, and oil can be replenished in time when the lubricating oil in the variable liquid cavity is insufficient.

[0045] The lubrication supply assembly 7 includes a heating chamber 701, an oil delivery pipe 702, a variable pressure flow control pipe 703, a high pressure oil pipe 704, an oil spray cover 705, a supply pipe 706, a piston rod 707 and a spring 708. The heating chamber 701 is fixedly installed inside the box body 601, and its bottom end is sealed with the oil delivery pipe 702. The oil delivery pipe 702 adopts a retractable structure and extends downward to connect to the variable liquid chamber; the variable pressure flow control pipe 703 is also installed inside the box body 601, and a diaphragm with a through hole is provided inside the diaphragm to connect the variable pressure flow control pipe 703. The interior of the tube 703 is divided into two chambers: a transmission chamber and a pressure-changing chamber; one end of the piston rod 707 is inserted into the transmission chamber of the pressure-changing flow control tube 703 and connected to the spring 708 inside it, and the other end passes through the box body 601 and extends to the positioning wheel 604 and is tightly attached to it; the pressure-changing chamber of the pressure-changing flow control tube 703 is connected to the high-pressure oil pipe 704 and the supply pipe 706 through two one-way valves respectively, wherein the high-pressure oil pipe 704 extends to the oil spray cover 705 and is connected to it, and the supply pipe 706 extends to the bottom position of the inner cavity of the heating chamber 701.

[0046] In this embodiment, it should be specifically explained that the feed slide 502 is slidably connected to the longitudinal guide rail of the milling mounting frame 4, and the box body 601 is slidably connected to the transverse guide rail of the feed slide 502; this facilitates precise adjustment of the longitudinal position (Y-axis direction) of the milling processing portion 6 or the transverse gap (X-axis direction) between the milling processing portion 6 and the profile, and can be adaptively adjusted according to the geometric characteristics of profiles of different specifications, and the spatial position stability of the profile during the processing process is ensured through multi-dimensional positioning;

[0047] The cutter head 603 and the positioning wheel 604 are arranged coplanarly. A hydraulic cylinder may be provided at the bottom of the servo motor 602 for fine-tuning the longitudinal position of the cutter head 603 connected to the servo motor 602 and its output shaft. After the positioning wheel 604 has completed the positioning of the profile, the radius of the corner of the profile edge can be adjusted by adjusting the longitudinal offset of the cutter head 603.

[0048] The positioning wheel 604 is provided with circumferentially distributed conical protrusions on one side of the housing 601. During its rotation, the positioning wheel periodically presses the piston rod 707, causing it to reciprocate along the transmission cavity of the voltage-variable flow control tube 703 under the elastic return action of the spring 708. This alternating action generates pressure pulsations in the pressure-variable cavity of the voltage-variable flow control tube 703.

[0049] The milling section 6 also includes an oil baffle 605 and an infrared detector 606. The oil baffle 605 is fixedly mounted at the front and rear ends of the housing 601 and arranged at an angle. Its lower end extends to the vicinity of the positioning wheel 604 but does not interfere with the contact area between the positioning wheel 604 and the profile. An infrared detector 606 is provided on the inner wall of the housing 601, near the bottom edge of the positioning wheel 604, to detect whether the profile is in place. The output end of the infrared detector 606 is electrically connected to the input end of the control system. When the profile enters the detection range of the infrared detector 606, the infrared detector 606 immediately sends a shutdown signal to the control system, triggering the oil pump 709 to execute the valve closing action, thereby ensuring the unidirectional flow characteristics of the fluid in the variable pressure flow control tube 703.

[0050] The lubrication supply assembly 7 also includes an oil pump 709, which connects the variable pressure chamber of the variable pressure flow control tube 703 with the heating chamber 701 to form a communication circuit. The input end of the oil pump 709 is electrically connected to the output end of the control system. When the milling process is completed and there is no need to lubricate the edge of the profile, the oil pump 709 is turned on to transfer the residual lubricating oil in the transmission chamber of the variable pressure flow control tube 703 through the heating chamber 701 and finally return it to the variable liquid chamber, completing a fully closed-loop recovery of the system's lubricating medium.

[0051] The lubrication supply assembly 7 is assembled in the same milling unit 6 near the front positioning wheel 604. The positioning wheel 604 is provided with a coating layer, and the oil spray end of the oil spray cover 705 is closely attached to the surface of the positioning wheel 604. For the positioning wheel 604 with an upper edge treatment, its bottom wall conforms to the profile, so the corresponding oil spray cover 705 is arranged above the positioning wheel 604. For the positioning wheel 604 with a lower edge treatment, its top wall conforms to the profile, so the corresponding oil spray cover 705 is arranged below the positioning wheel 604. The layout of other components of the lubrication supply assembly 7 can be flexibly adjusted by those skilled in the art according to actual needs, but the overall working mechanism remains unchanged.

[0052] The pressure-changing chamber of the pressure-changing flow control tube 703 forms a directional flow path with the high-pressure oil pipe 704 and the supply pipe 706 through two one-way valves. When the oil pump 709 is in the off state, the liquid flow path is limited to entering only through the supply pipe 706 and being discharged through the high-pressure oil pipe 704.

[0053] The top height of the guide slider 803 is always no higher than the plane where the bottom wall of the slide 3 is located, thereby ensuring that the guide slider 803 and the slide 3 do not interfere with each other during movement.

[0054] Reference Figure 8-10 , the left and right edges of the dynamic top cover 802 are provided with blanking ports, the top wall of the dynamic top cover 802 adopts an inclined structure with a low outside and a high inside, and a chip cleaning assembly 9 is provided above the dynamic top cover 802;

[0055] The chip cleaning assembly 9 consists of a bellows 901, a drainage pipe 902 and a support frame 903, wherein the bellows 901 is sealed and connected to the middle of the dynamic top cover 802 and communicates with it, the front and rear sides of the bellows 901 are respectively connected to the drainage pipe 902, and the cover plate 904 is sealed and embedded in the blanking openings on the front and rear sides of the dynamic top cover 802. The drainage pipe 902 and the cover plate 904 are fixedly installed on the main cavity 801 through the support frame 903, and the outer end of the drainage pipe 902 is communicated with the negative pressure absorption device.

[0056] In this embodiment, it should be specifically noted that the highest point of the chip cleaning assembly 9 is not higher than the plane of the bottom wall of the slide 3, so as to avoid interfering with the movement of the slide 3. Except for the bellows 901, which will adaptively expand and contract as the dynamic top cover 802 rises and falls, the remaining components of the entire chip cleaning assembly 9 remain stationary relative to the dynamic top cover 802.

[0057] Working principle of the present invention:

[0058] When the profile is suspended between the left and right milling systems, after the equipment is started, the reversible motor 203 transmits the driving torque to the reducer 202, and the reducer 202 drives the bidirectional screw 201 to perform a forward rotational motion; this rotational action causes the left and right milling systems, which are threadedly connected to the surface of the bidirectional screw 201 and are symmetrically distributed, to move towards each other, gradually moving towards the profile at the center position, and finally achieving the clamping and positioning of the profile; however, due to the differences in thickness and width of different profiles, relying solely on the spacing adjustment of the left and right milling systems is difficult to meet the diverse clamping requirements; therefore, the system needs to further precisely adjust the longitudinal position (Y-axis direction) of the milling processing part 6 or the transverse gap (X-axis direction) between it and the profile:

[0059] Upper / lower edge positioning: By controlling the first cylinder 501 on the corresponding side, its telescopic end drives the feed slide 502, the second cylinder 503, the milling processing part 6 and the lubrication supply assembly 7 to move in the vertical direction until the positioning wheel 604 on that side is completely in contact with the upper / lower edge of the profile;

[0060] Side limit working condition: by driving the second cylinder 503 on the corresponding side, its telescopic end drives the milling processing part 6 and the lubrication supply assembly 7 to move horizontally until the box 601 on this side is in close contact with the left / right edge of the profile;

[0061] This dynamic adjustment mechanism can be adaptively adjusted according to the geometric characteristics of profiles of different specifications. Through multi-dimensional positioning, it ensures the spatial position stability of the profile during processing and effectively prevents the occurrence of processing offset.

[0062] When the left and right milling systems move synchronously toward the center position, the inclined rail linkage rod 804 rigidly connected to the slide 3 will produce a linkage displacement. The component is guided by the inclined slide groove of the guide slider 803, and simultaneously produces a downward pressure action during the horizontal displacement process, thereby driving the guide slider 803, dynamic top cover 802, floating piston plate 805 and metal chip collection trough 806 connected in series to sink as a whole; this movement process applies pressure to the variable liquid cavity formed between the main cavity 801 and the floating piston plate 805, forcing the lubricating oil in the cavity to be transported to the heating chamber 701 through the oil pipe 702. After moderate heating treatment of the non-high temperature lubricating oil, its metal surface permeability is significantly improved, which is conducive to forming a uniform lubricating film, effectively reducing the friction coefficient and optimizing the finish of the machined surface; in the milling of the edge of the profile During the cutting process, the uniform speed of pulling the profile causes the positioning wheel 604 to rotate relative to the profile surface in contact. Since the back of the positioning wheel 604 is provided with circumferentially uniformly distributed conical protrusions, it will periodically press the piston rod 707 during its rotation, causing it to reciprocate along the transmission cavity of the voltage-changing control flow tube 703 under the elastic reset action of the spring 708. This alternating action causes pressure pulsation in the voltage-changing cavity of the voltage-changing control flow tube 703, pushing the preheated lubricating oil in the heating chamber 701 through the supply pipe 706, the high-pressure oil pipe 704 and the oil spray cover 705 in sequence, ultimately forming a directional oil curtain covering the working surface of the rotating positioning wheel 604. This lubrication mechanism can achieve continuous oil film replenishment during the rolling and positioning of the profile edge, which not only enhances the cutting efficiency of the milling tool of the cutter head 603, but also reduces its wear rate.

[0063] At the same time, as the guide slider 803, dynamic top cover 802, floating piston plate 805 and metal chip collection trough 806 sink as a whole, the blanking openings on both sides of the top wall of the dynamic top cover 802 gradually break away from the closed state of the cover plate 904. At this time, the metal chips generated by milling first accumulate on the inclined top wall of the dynamic top cover 802. The top wall adopts a sloped design with a low outer surface and a high inner surface. Under the action of gravity, the chips slide along the slope and eventually enter the metal chip collection trough 806 through the open blanking opening, realizing automatic collection.

[0064] When the milling process is completed and the equipment is reset, the bidirectional screw 201 performs reverse rotation drive, and the left and right milling systems perform back-to-back separation movement. This movement is transmitted through the linkage of the inclined rail linkage rod 804, and the horizontal displacement is converted into a vertical lifting force through the guidance conversion of the inclined slide groove of the guide slider 803, driving the guide slider 803, the dynamic top cover 802, the floating piston plate 805 and the metal chip collection trough 806 to move upward and reset as a whole; at this time, the cover plate 904 re-closes the blanking port to form a sealed metal chip collection trough 806 chip storage chamber; then the negative pressure absorption device connected to the drainage pipe 902 is started, and the metal chips accumulated in the metal chip collection trough 806 are recovered and processed through the bellows 901 and the drainage pipe 902 by negative pressure suction;

[0065] The reset process triggers three linkage mechanisms synchronously:

[0066] The lifting action of the floating piston plate 805 expands the variable liquid chamber volume between the main cavity 801 and the floating piston plate 805, generates a negative pressure siphon effect, and promotes the lubricating oil in the preheater of the heating cabin 701 to flow back to the liquid chamber. At this time, the heating cabin 701 stops working, the heating function is cut off, and energy saving is achieved.

[0067] When the profile is separated from the detection area of the infrared detector 606, the infrared detector 606 immediately sends a start signal to the control system to trigger the oil pump 709 opening instruction.

[0068] The opening of the oil pump 709 makes the residual lubricating oil in the transmission cavity of the variable pressure control flow pipe 703 finally flow back to the variable liquid chamber after being transferred in the heating cabin 701, completing the full closed loop recovery of the system lubricating medium.

[0069] The above is only one preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art within the technical scope disclosed by the present application; according to the technical plan and improvement idea of the present application, equivalent substitution or modification is carried out, which should be included in the protection of the present application.

Claims

1. A profile four-side R-angle machine, comprising a machine tool (1) and a spacing adjustment system, wherein the spacing adjustment system is mirror-imaged with left and right milling systems; characterized in that: An oil supply and chip storage assembly (8) and a chip cleaning assembly (9) located inside the machine tool (1) are provided between the left and right milling systems; the left and right milling systems are composed of symmetrically arranged left and right milling systems; both the left and right milling systems are composed of a slide (3), a milling mounting frame (4) and an adjustable milling assembly; The slide (3) is transmission-mounted on the spacing adjustment system, and the middle of the top thereof is fixedly connected to a milling mounting frame (4). Two sets of adjustable milling assemblies arranged in a central symmetrical manner are arranged on the front and rear sides of the milling mounting frame (4). The adjustable milling assembly consists of a multi-directional adjustment assembly (5) and a milling processing part (6), wherein the multi-directional adjustment assembly (5) is mounted on the outside of the milling mounting frame (4), and the output end of the milling processing part (6) faces inward; the four milling processing parts (6) correspond to the four edges of the profile respectively; and a lubrication supply assembly (7) is mounted on the milling processing part (6); The milling processing part (6) includes a box body (601), a cutter disc (603) and a positioning wheel (604). The positioning wheels (604) are provided on both the front and rear sides of the cutter disc (603). The positioning wheel (604) is provided with circumferentially distributed conical protrusions on a side wall close to the box body (601). During the rotation of the positioning wheel (604), the positioning wheel periodically presses the piston rod (707) in the lubrication supply assembly (7). The oil replenishing and chip storage assembly (8) consists of a main cavity (801), a dynamic top cover (802), a guide slider (803), an inclined rail linkage rod (804) and a floating piston plate (805), wherein the main cavity (801) is fixedly installed inside the machine tool (1) and the dynamic top cover (802) is movably sleeved on the top of its inner cavity, the four corners of the top of the dynamic top cover (802) are fixedly connected to the guide slider (803), one end of the inclined rail linkage rod (804) is fixedly connected to the slide seat (3) and the other end is embedded in the inclined slide rail of the guide slider (803), the bottom wall of the dynamic top cover (802) is equipped with a floating piston plate (805) through a connecting rod, and the floating piston plate (805) and the bottom wall of the main cavity (801) together enclose a variable liquid cavity.

2. The profile four-side R-angle machine according to claim 1, characterized in that: The milling processing part (6) further comprises a servo motor (602). The servo motor (602) is arranged in the middle of the box (601). The output shaft of the servo motor (602) passes through the box (601) and is coaxially assembled with the cutter head (603). The positioning wheel (604) is rotatably connected to the box (601) via a bearing.

3. The profile four-side R-angle machine according to claim 1, characterized in that: A chip storage chamber is formed between the dynamic top cover (802) and the floating piston plate (805), and a metal chip collecting trough (806) can be placed above the floating piston plate (805); a stop valve is connected to the side wall of the variable liquid chamber.

4. The profile four-side R-angle machine according to claim 1 or 2, characterized in that: The lubrication supply assembly (7) comprises a heating chamber (701), an oil delivery pipe (702), a variable pressure flow control pipe (703), a high pressure oil pipe (704), an oil spray cover (705), a supply pipe (706), a piston rod (707) and a spring (708), wherein the heating chamber (701) is fixedly mounted inside the housing (601), and its bottom end is sealedly connected to the oil delivery pipe (702), and the oil delivery pipe (702) adopts a telescopic structure and extends downward to communicate with the variable liquid chamber; the variable pressure flow control pipe (703) is also mounted inside the housing (601), and a spacer with a through hole is provided inside the spacer, which changes the pressure. The interior of the pressure control flow tube (703) is divided into two chambers: a transmission chamber and a pressure conversion chamber. One end of the piston rod (707) is inserted into the transmission chamber of the pressure control flow tube (703) and connected to the spring (708) therein, and the other end passes through the box (601) and extends to the positioning wheel (604) and is closely attached thereto. The pressure conversion chamber of the pressure control flow tube (703) is communicated with the high-pressure oil pipe (704) and the supply pipe (706) respectively through two one-way valves. The high-pressure oil pipe (704) extends to and is communicated with the oil spray cover (705), and the supply pipe (706) extends to the bottom position of the inner chamber of the heating chamber (701).

5. The profile four-side R-angle machine according to claim 2, characterized in that: The cutter disc (603) and the positioning wheel (604) are arranged in the same plane, and a hydraulic cylinder is provided at the bottom of the servo motor (602).

6. The profile four-side R-angle machine according to claim 1, characterized in that: The milling processing part (6) further comprises an oil baffle (605) and an infrared detector (606), wherein the oil baffle (605) is fixedly mounted at the front and rear ends of the box body (601) and arranged in an inclined manner, and its lower end extends to the vicinity of the positioning wheel (604) but does not interfere with the contact area between the positioning wheel (604) and the profile; an infrared detector (606) is provided on the inner side wall of the box body (601) near the bottom edge of the positioning wheel (604) for detecting whether the profile is in place, and the output end of the infrared detector (606) is electrically connected to the input end of the control system.

7. The profile four-side R-angle machine according to claim 6, characterized in that: The lubrication supply assembly (7) further includes an oil pump (709), which connects the pressure-changing chamber of the pressure-changing flow control tube (703) with the heating chamber (701), and the input end of the oil pump (709) is electrically connected to the output end of the control system.

8. The profile four-side R-angle machine according to claim 1, characterized in that: The multi-directional adjustment assembly (5) is composed of a first cylinder (501), a feed slide (502) and a second cylinder (503), wherein the first cylinder (501) is mounted on the top and bottom edges of the outer side of the milling mounting frame (4), the telescopic end of the first cylinder (501) is connected to the outer edge of the feed slide (502), the second cylinder (503) is mounted on the outer edge of the feed slide (502), and the telescopic end of the second cylinder (503) is connected to the box (601).

9. The profile four-side R-angle machine according to claim 1, characterized in that: The left and right edges of the dynamic top cover (802) are provided with blanking openings, the top wall of the dynamic top cover (802) adopts an inclined structure with a lower outside and a higher inside, and a chip cleaning assembly (9) is provided above the dynamic top cover (802).

10. The profile four-side R-angle machine according to claim 1 or 9, characterized in that: The chip cleaning assembly (9) is composed of a bellows (901), a drainage pipe (902) and a support frame (903), wherein the bellows (901) is sealed and connected to the middle of the dynamic top cover (802) and communicates therewith, the front and rear sides of the bellows (901) are respectively connected to the drainage pipe (902), the cover plate (904) is sealed and embedded in the blanking openings on the front and rear sides of the dynamic top cover (802), the drainage pipe (902) and the cover plate (904) are fixedly installed on the main cavity (801) through the support frame (903), and the outer end of the drainage pipe (902) is communicated with the negative pressure absorption device.

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