A double-sided hole milling device for door and window profiles

Abstract

The utility model discloses a door and window section bar double -sided milling hole device, including frame, section bar conveying mechanism, positioning clamping mechanism, double -sided milling hole mechanism and chip processing system. Section bar conveying mechanism conveys section bar to the processing position, and positioning clamping mechanism positions and clamps to section bar, and double -sided milling hole mechanism carries out milling hole processing to the both sides of section bar simultaneously, and chip processing system promptly collects and handles the chip and dust generated in the processing process. The device realizes the double -sided synchronous milling hole processing of door and window section bar, improves the processing efficiency and accuracy, adapts the processing demand of multiple specifications section bar, improves the working environment, and reduces the equipment cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of door and window processing equipment, specifically relating to a double-sided milling device for door and window profiles, which is suitable for double-sided milling of various door and window profiles such as aluminum alloy and plastic steel, and is especially suitable for high-precision and high-efficiency milling operations in mass production. Background Technology

[0002] In the door and window manufacturing industry, milling holes in door and window profiles is a crucial process. Traditional milling of door and window profiles typically employs a single-sided milling method, where one side of the profile is milled first, and then the profile is flipped over to mill the other side. This method has the following problems: First, it has low processing efficiency, requiring multiple clamping and positioning operations, increasing processing time and labor intensity; second, processing accuracy is difficult to guarantee, as multiple clamping and positioning operations can easily lead to cumulative errors, resulting in inconsistent hole position accuracy on both sides of the profile; third, it requires a large equipment footprint, necessitating multiple machines for single-sided milling, increasing equipment investment and production space usage.

[0003] To address the aforementioned issues, several double-sided milling devices have been proposed in the prior art. For example, Chinese Patent CN201821574789.2 discloses a double-sided milling device for door and window profiles, comprising a worktable, a profile fixing seat mounted on the worktable, milling mechanisms mounted on both sides of the profile fixing seat, and a drive mechanism for moving the milling mechanisms. While this device can achieve double-sided milling of door and window profiles, it still has some shortcomings: First, the positioning and clamping of the profiles are not precise enough, which can easily lead to displacement of the profiles during processing, affecting processing accuracy; second, the adjustment of the milling mechanism is not flexible enough, making it difficult to adapt to the processing needs of profiles of different specifications and sizes; third, it lacks an effective chip handling device, and chips easily accumulate on the worktable, affecting processing quality and the service life of the equipment.

[0004] Therefore, it is necessary to develop a new type of double-sided milling device for door and window profiles to improve processing efficiency and accuracy, reduce labor intensity, and adapt to the processing needs of profiles of different specifications and sizes. Utility Model Content

[0005] The purpose of this invention is to provide a double-sided milling device for door and window profiles to solve the problems of low processing efficiency, difficulty in guaranteeing accuracy, inflexible equipment adjustment, and inconvenient chip handling in existing technologies. Specific objectives include: achieving simultaneous double-sided milling of door and window profiles to improve processing efficiency; employing precise positioning and clamping mechanisms to ensure the stability and accuracy of the profiles during processing; designing a flexible and adjustable milling mechanism to adapt to the processing needs of profiles of different specifications and sizes; and setting up an effective chip handling device to promptly clean up chips generated during processing, ensuring processing quality and extending the equipment's lifespan.

[0006] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0007] The beneficial effects of this utility model are as follows: The double-sided milling device for door and window profiles of this utility model is mainly composed of a frame, a profile conveying mechanism, a positioning and clamping mechanism, a double-sided milling mechanism and a chip processing system, and its overall structure is shown in Figure 1.

[0008] Frame: Constructed from high-strength steel plates, providing excellent rigidity and stability. Adjustable feet are provided at the bottom of the frame to adjust the equipment's level. The upper surface of the frame is equipped with a profile conveying track and a chip collection trough. The profile conveying track supports and guides the conveying of profiles, while the chip collection trough collects chips generated during processing.

[0009] Profile conveying mechanism: includes a conveyor motor, drive sprocket, driven sprocket, chain, and conveyor rollers. The conveyor motor is connected to the drive sprocket via a coupling, and the drive sprocket and driven sprocket are connected by chain drive. The conveyor rollers are evenly distributed on the chain to support and convey the profiles. The profile conveying mechanism is also equipped with a tensioning device to adjust the chain tension and ensure the normal operation of the chain.

[0010] The positioning and clamping mechanism includes a fixed positioning seat, a movable positioning seat, a clamping cylinder, and a clamping block. The fixed positioning seat is fixedly mounted on the machine frame, and the movable positioning seat is slidably connected to the machine frame via guide rails and a slider. The clamping cylinder is fixedly mounted on the movable positioning seat, and the clamping block is connected to the piston rod of the clamping cylinder. The positioning and clamping mechanism is also equipped with a positioning sensor to detect the position of the profile and ensure accurate positioning of the profile. In this embodiment, the positioning and clamping mechanism adopts a double-sided synchronous clamping method, which can effectively prevent the profile from shifting during processing and improve processing accuracy.

[0011] The double-sided milling mechanism includes a left milling unit and a right milling unit, respectively located on both sides of the profile. Each milling unit includes a column, a lifting slide, a transverse slide, a milling motor, and a milling cutter head. The column is fixedly mounted on the frame. The lifting slide is slidably connected to the column via guide rails and sliders, and the transverse slide is slidably connected to the lifting slide via guide rails and sliders. The milling motor is fixedly mounted on the transverse slide, and the milling cutter head is connected to the output shaft of the milling motor. The double-sided milling mechanism also includes a servo drive system to control the movement of the lifting slide and the transverse slide, enabling precise position adjustment of the milling cutter head in three-dimensional space. In this embodiment, the left and right milling units can move independently or synchronously, allowing for flexible adjustment according to different processing requirements.

[0012] The chip handling system includes a chip collection trough, a chip conveyor, and a chip collection box. The chip collection trough is located on the upper surface of the frame, below the profile conveyor track, and is used to collect chips generated during processing. The chip conveyor is located inside the chip collection trough and is used to transport the chips to the chip collection box. The chip collection box is located on one side of the frame and is used to store the collected chips. The chip handling system also includes a dust extraction device to absorb dust generated during processing and improve the working environment.

[0013] The working principle of this utility model is as follows: First, the profile is conveyed to the processing position by the profile conveying mechanism. The positioning and clamping mechanism positions and clamps the profile to ensure its stability during processing. Then, the double-sided milling mechanism mills holes on both sides of the profile simultaneously according to preset processing parameters. During processing, the chip handling system collects and processes the chips and dust generated during processing in a timely manner, ensuring a clean processing environment. After processing is completed, the positioning and clamping mechanism releases the profile, and the profile conveying mechanism transports the processed profile to the next process.

[0014] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0015] Figure 1 A schematic diagram of a drilling machine for processing thermally broken aluminum alloy doors and windows;

[0016] Figure 2 for Figure 1 A top view of the drilling machine used for processing thermally broken aluminum alloy doors and windows. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-2 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0018] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] like Figure 1 As shown, this utility model provides a double-sided milling device for door and window profiles, mainly composed of a frame, a profile conveying mechanism, a positioning and clamping mechanism, a double-sided milling mechanism, and a chip handling system. The frame, serving as the basic framework of the device, is welded from high-strength steel and has leveling feet at the bottom to ensure stable operation. The profile conveying mechanism is arranged along the length of the frame to smoothly convey door and window profiles to the processing area; the positioning and clamping mechanism is located in the middle of the conveying path, enabling precise positioning and secure clamping of the profiles; the double-sided milling mechanisms are symmetrically distributed on both sides of the profiles to achieve synchronous milling operations; and the chip handling system is responsible for collecting and processing the chips and dust generated during the processing.

[0021] The double-sided milling device for door and window profiles provided in the above embodiments can improve processing efficiency by more than 50% compared with traditional single-sided processing equipment, and the hole position accuracy is controlled within ±0.05mm, effectively solving the problems of low efficiency and poor accuracy of existing equipment.

[0022] Preferably, in one embodiment of this utility model, such as Figure 1 As shown, the profile conveying mechanism includes a servo motor, a synchronous belt drive assembly, and multiple equidistant V-shaped idlers. The servo motor drives the V-shaped idlers to rotate via the synchronous belt. The surface of the V-shaped idlers is made of polyurethane material, which increases friction to prevent the profiles from slipping and avoids scratching the profile surface. The conveying speed can be steplessly adjusted within the range of 0-10m / min to meet the needs of different processing rhythms.

[0023] Specifically, such as Figure 1As shown, the positioning and clamping mechanism consists of a fixed positioning seat, a movable positioning seat, and a clamping cylinder. The fixed positioning seat is fixedly mounted on the machine frame, and its positioning surface is precision ground with a flatness error of less than 0.02mm. The movable positioning seat is slidably connected to the machine frame via a linear guide rail and can move closer to or further away from the fixed positioning seat under the drive of the clamping cylinder. The movable positioning seat is equipped with an adjustable positioning baffle, which can move horizontally via a threaded pair to accommodate profiles of different widths. The clamping cylinder is a double-acting cylinder with a maximum clamping force of 12kN, ensuring the stability of the profile during processing.

[0024] Specifically, such as Figure 1 As shown, the double-sided milling mechanism comprises two symmetrical milling units. Each milling unit is equipped with a column, a lifting slide, a transverse slide, and a spindle box. The column is rigidly connected to the frame. The lifting and transverse slides utilize linear guide rail-ball screw drives, powered by servo motors, achieving a positioning accuracy of ±0.01mm. The spindle box houses a high-speed electric spindle with a maximum speed of 12000 r / min, capable of mounting various milling cutters and enabling rapid tool changes via a BT40 tool holder.

[0025] Specifically, such as Figure 2 As shown, the chip handling system consists of a chip collection trough, a spiral chip conveyor, and a chip collection box. The chip collection trough, located at the bottom of the frame, is funnel-shaped to facilitate chip sliding. The spiral chip conveyor, installed inside the collection trough, is driven by a motor to transport the chips to the chip collection box. The chip collection box has a drawer-type structure on its side for easy chip cleaning. In addition, the system is equipped with a dust extraction duct and a pulse-jet dust collector to effectively collect dust generated during processing and maintain a clean working environment.

[0026] Preferably, in one embodiment of this utility model, such as Figure 1 As shown, the upper surface of the frame is equipped with a profile guide groove. The side walls of the guide groove are made of wear-resistant polytetrafluoroethylene (PTFE) material, which reduces frictional resistance during profile conveying and prevents profile deviation. The width of the guide groove can be finely adjusted using adjusting bolts to accommodate profiles of different sizes.

[0027] Preferably, in one embodiment of this utility model, such as Figure 1 As shown, the positioning and clamping mechanism is also equipped with a laser positioning sensor. This sensor is mounted on a fixed positioning seat and can emit a laser beam to illuminate the surface of the profile. By receiving the reflected light signal, it can accurately detect the position and angle of the profile. When a deviation is detected, the system automatically controls the movable positioning seat to make fine adjustments to ensure the positioning accuracy of the profile.

[0028] Preferably, in one embodiment of this utility model, such as Figure 1As shown, the spindle box of the double-sided milling mechanism is equipped with a circulating cooling system. This system consists of a cooling pump, a radiator, and piping. The cooling pump delivers coolant to heat-generating components such as the spindle bearings and motor windings, removing heat before the coolant is cooled by the radiator and then recycled. The coolant used is a water-based cutting fluid, which effectively reduces the spindle operating temperature and extends the equipment's service life.

[0029] Preferably, in one embodiment of this utility model, such as Figure 2 As shown, a level sensor is installed at the bottom of the chip collection tank to monitor the coolant level. When the level falls below a set value, the sensor sends a signal, and the control system automatically starts the replenishment pump to add coolant from the backup tank. The backup tank has a capacity of 200L, which can meet the needs of long-term continuous operation of the equipment.

[0030] Preferred, such as Figure 1 and Figure 2 As shown, the device is equipped with a human-machine interface touchscreen, allowing operators to set profile specifications, processing parameters (such as milling hole diameter, depth, and spacing), conveying speed, clamping force, and other parameters via the touchscreen. The system also features processing data recording and statistical functions, displaying real-time information such as the quantity of processed profiles and the processing pass rate, facilitating production management.

[0031] The specific working principle and usage method of this utility model are as follows: First, the operator inputs the specifications and processing parameters of the door and window profile to be processed on the human-machine interactive touch screen, such as the profile width being 60mm, the hole diameter being 8mm, the depth being 15mm, and the hole spacing being 100mm, etc. Then, the profile is placed on the V-shaped roller of the profile conveying mechanism, the servo motor is started, and the profile is conveyed to the positioning and clamping mechanism at a speed of 5m / min.

[0032] When the laser positioning sensor is triggered at the front end of the profile, the profile conveying mechanism stops operating. At this time, the clamping cylinder pushes the movable positioning seat towards the fixed positioning seat, and the positioning baffle contacts the side of the profile, completing the precise positioning of the profile. Simultaneously, the clamping cylinder continuously applies a clamping force of 10kN to firmly fix the profile.

[0033] After positioning and clamping, the left and right milling units of the double-sided milling mechanism begin operation. Servo motors drive the lifting and transverse slides, adjusting the high-speed electric spindle to its initial machining position. The electric spindle starts, rotating the milling cutter at 8000 rpm. Subsequently, the slides move along a preset path, and the milling cutter simultaneously mills holes on both sides of the profile. During processing, the circulating cooling system continuously operates, spraying coolant onto the milling cutter to reduce the cutting temperature.

[0034] The chips and dust generated during processing are distributed as follows: some fall into the chip collection trough at the bottom of the frame and are conveyed to the chip collection box by the spiral chip conveyor; the other part is collected by the dust extraction pipe and filtered by the pulse dust collector. After all the holes of a profile have been processed, the clamping cylinder is released, and the profile conveying mechanism sends the processed profile out, while the next profile to be processed is conveyed to the processing position, and the above processing process is repeated.

[0035] During processing, the system continuously monitors the operating status of each component. If the level sensor detects that the coolant level is too low, it automatically starts the coolant replenishment pump to add coolant; if the laser positioning sensor detects that the profile positioning deviation exceeds the set threshold, the system will immediately stop processing, issue an alarm, and prompt the operator to make adjustments.

[0036] This utility model provides a double-sided milling device for door and window profiles. Through the coordinated operation of various mechanisms, it realizes efficient and precise double-sided milling of door and window profiles, effectively improving production efficiency and processing quality, reducing the labor intensity of workers, and has good practicality and promotion value.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A device for double-sided milling of holes in a door and window profile, characterized in that, The machine includes a frame, a profile conveying mechanism, a positioning and clamping mechanism, a double-sided milling mechanism, and a chip handling system. The profile conveying mechanism is mounted on the frame and is used to convey profiles. The positioning and clamping mechanism is mounted on the frame and is used to position and clamp the profiles. The double-sided milling mechanism is mounted on the frame and located on both sides of the profiles, and is used to mill holes on both sides of the profiles. The chip handling system is mounted on the frame and is used to collect and handle the chips and dust generated during the processing.

2. The double-sided milling device for door and window profiles according to claim 1, characterized in that, The positioning and clamping mechanism includes a fixed positioning seat, a movable positioning seat, a clamping cylinder, and a clamping block. The fixed positioning seat is fixedly installed on the machine frame. The movable positioning seat is slidably connected to the machine frame through a guide rail and a slider. The clamping cylinder is fixedly installed on the movable positioning seat. The clamping block is connected to the piston rod of the clamping cylinder.

3. The device for double-sided milling of holes in a door and window profile according to claim 1, characterized in that, The double-sided milling mechanism includes a left milling unit and a right milling unit. Each milling unit includes a column, a lifting slide, a transverse slide, a milling motor, and a milling cutter head. The column is fixedly installed on the frame. The lifting slide is slidably connected to the column through guide rails and sliders. The transverse slide is slidably connected to the lifting slide through guide rails and sliders. The milling motor is fixedly installed on the transverse slide. The milling cutter head is connected to the output shaft of the milling motor.

4. A dual-sided milling device for a door and window profile according to claim 3, characterized in that The double-sided milling mechanism is also equipped with a servo drive system for controlling the movement of the lifting slide and the transverse slide.

5. The device for double-sided milling of holes in a door and window profile according to claim 1, characterized in that, The chip handling system includes a chip collection trough, a chip conveyor, and a chip collection box. The chip collection trough is located on the upper surface of the frame, below the profile conveying track. The chip conveyor is located inside the chip collection trough, and the chip collection box is located on one side of the frame.

6. A dual-sided milling device for a door and window profile according to claim 5, characterized in that The chip handling system is also equipped with a dust extraction device to absorb the dust generated during the processing.

7. The dual-sided milling device for door and window profiles according to claim 1, characterized in that, The profile conveying mechanism includes a conveying motor, a driving sprocket, a driven sprocket, a chain, and conveying rollers. The conveying motor is connected to the driving sprocket via a coupling. The driving sprocket and the driven sprocket are connected by chain drive. The conveying rollers are evenly distributed on the chain.

8. The double-sided milling device for door and window profiles according to claim 7, characterized in that, The profile conveying mechanism is also equipped with a tensioning device for adjusting the tension of the chain.

9. The double-sided milling device for door and window profiles according to claim 1, characterized in that, The positioning and clamping mechanism is also equipped with a positioning sensor for detecting the position of the profile.

10. The double-sided milling device for door and window profiles according to claim 1, characterized in that, The bottom of the frame is equipped with adjustable feet to adjust the level of the equipment.

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