Polishing device for metal door and window machining

Abstract

The polishing device for metal door and window machining comprises a base and a supporting frame arranged on one side of the upper end face of the base, an electrically-driven linear sliding rail is horizontally arranged at the upper end of the supporting frame, and an angle adjusting mechanism used for adjusting the polishing pressure angle is arranged on a driving piece of the linear sliding rail. An angle adjusting mechanism is arranged on the upper end face of the base, a pressure mechanism is arranged at the lower end of the angle adjusting mechanism, a polishing roller set is arranged at the lower end of the pressure mechanism and used for polishing door and window frames, a controller is further arranged on the angle adjusting mechanism, and a clamping assembly used for positioning the door and window frames is arranged on the upper end face of the base and located below the polishing roller set. The arc-shaped profile grinding device is simple in structure and reasonable in design, the effect that when an arc-shaped profile is ground, the direction of pressure applied by a grinding wheel to the profile is always perpendicular to a contact surface is achieved, the problem that the arc surface of the profile is excessively ground or is not ground sufficiently or even is ground unevenly is solved, and the grinding quality of the arc-shaped profile is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal grinding equipment, in particular to a grinding device for processing metal doors and windows. Background Art

[0002] Metal doors and windows are an important part of building envelopes and are widely used in residential and commercial buildings. They have the advantages of high strength, corrosion resistance, and easy processing. However, in the production process, the polishing of door and window frame profiles is one of the key processes, which directly affects the appearance quality and performance of doors and windows.

[0003] The traditional device has the following shortcomings: At present, when grinding the metal profiles of doors and windows, it is mainly done through a grinder. The grinder consists of a linear slide rail and a fixed-angle grinding roller group. After the profile is fixed, the grinding head is controlled to move in contact with the profile surface to achieve grinding. However, this type of grinding device still has significant defects in practical applications. First, the existing equipment is mainly designed for flat profiles and cannot effectively adapt to the grinding needs of curved door and window frames. When grinding the curved area, due to the fixed grinding angle, the pressure applied by the grinding wheel to the profile cannot always be perpendicular to the contact surface. The inclined force will cause uneven grinding of the curved area of ​​the profile, which is prone to over-grinding or under-grinding, affecting the quality of the finished product. At the same time, it will also damage the grinding wheel and affect the working life of the grinding wheel. Secondly, even if the existing equipment can adjust the grinding angle, the function is relatively simple. It usually requires manual adjustment or relies on a fixed mode. It cannot be automatically adjusted dynamically according to the curvature of the profile in real time, resulting in complicated operation and difficult to ensure accuracy. Summary of the invention

[0004] The object of the present invention is to provide a grinding device for metal door and window processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grinding device for metal door and window processing, comprising a base and a support frame arranged on one side of the upper end surface of the base, an electrically driven linear slide rail is horizontally arranged on the upper end of the support frame, an angle adjustment mechanism for adjusting the grinding pressure angle is arranged on the driving member of the linear slide rail, a pressure mechanism is arranged at the lower end of the angle adjustment mechanism, a grinding roller group is arranged at the lower end of the pressure mechanism for grinding door and window frames, a controller is also arranged on the angle adjustment mechanism, and a clamping assembly for positioning the door and window frames is arranged on the upper end surface of the base below the grinding roller group; The angle adjustment mechanism comprises: An arc-shaped slide rail, wherein the arc-shaped slide rail is arranged on a driving member of a linear slide rail, wherein the arc-shaped slide rail is an electric slide rail, wherein a positioning plate is arranged on the driving member of the arc-shaped slide rail, wherein a positioning shaft is centrally provided at the lower end of the positioning plate, wherein a swing arm is rotatably connected to the positioning shaft, and wherein the pressure mechanism is arranged at the lower end of the swing arm; A U-shaped sleeve, the U-shaped sleeve is arranged on the side wall of the positioning plate and sleeved on the upper end of the swing arm, and touch switches are arranged on the inner walls of both sides of the U-shaped sleeve; A reset component is symmetrically arranged on the side wall of the positioning plate and is used to correct the distance between the end of the swing arm and the touch switches on both sides during the grinding process.

[0006] Preferably, the pressure mechanism comprises: A sleeve box, the sleeve box is arranged at the lower end of the swing arm, a screw rod is symmetrically arranged on one side inside the sleeve box, and a power unit for driving the screw rod to rotate is arranged at the upper end of the sleeve box; A pressure box, wherein the pressure box is movably arranged in the sleeve box, one side of the pressure box is connected to a sliding member on the screw rod, a telescopic frame is slidably connected in the pressure box, and the grinding roller group is arranged at the lower end of the telescopic frame; An electromagnet, wherein the electromagnet is arranged at the upper end of the inner wall of the pressure box, and a permanent magnet matching the electromagnet is arranged at the upper end of the telescopic frame; A proximity switch is arranged on the inner wall of the pressure box from top to bottom, and a triggering member for triggering the proximity switch is arranged at the end of the telescopic frame.

[0007] Preferably, the reset component includes: A mounting plate, the mounting plate being symmetrically arranged on the side wall of the positioning plate and located on both sides of the swing arm; A screw rod is threadedly connected in a threaded hole on the mounting plate, and a compression spring is rotatably connected to the end of the screw rod. One end of the compression spring away from the screw rod is pressed tightly against the side walls of the swing arm.

[0008] Preferably, the clamping assembly comprises: A slide groove, the slide groove is arranged on the upper end surface of the base, a slide seat is slidably connected in the slide groove, and positioning nuts are threadedly connected at both ends of the slide seat; A top block, which is arranged on one side of the upper end surface of the slide seat, and a positioning seat is arranged on the other side of the upper end surface of the slide seat, a sleeve is slidably connected in a sleeve at the end of the positioning seat, a push rod is threadedly connected to the end of the sleeve, a push rod is rotatably connected to the bracket at the end of the positioning seat, and a connecting piece is rotatably connected between the sliding sleeve and the pushing rod through a pin shaft.

[0009] Preferably, a counterweight is provided on one side of the casing for adjusting the overall center of gravity.

[0010] Preferably, the controller is electrically connected to the linear slide rail, the arc slide rail, the touch switch, the power unit, the electromagnet and the proximity switch respectively through wires.

[0011] Preferably, the swing angle of the swing arm around the positioning axis is plus or minus 1 degree.

[0012] Preferably, a soft anti-slip pad is provided on the adjacent end surfaces of the top block and the top rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention is provided with an angle adjustment mechanism, so that when grinding the arc-shaped profile, the pressure direction applied by the grinding wheel to the profile is always perpendicular to the contact surface, thereby avoiding the problem of over-grinding, insufficient grinding or even uneven grinding of the arc surface of the profile, and significantly improving the grinding quality of the arc-shaped profile. At the same time, the adjustment of the pressure direction also reduces the loss of the grinding wheel during the grinding process, and significantly increases the actual service life of the grinding wheel. Secondly, by utilizing the combination of the touch switches on both sides of the swing arm, the dynamic automatic adjustment of the whole process is realized, the response is rapid, and the intervention of the staff is not required, the operation process is simplified, and the grinding accuracy is also improved. The present invention realizes dynamic adjustment of the pressure value of the contact point between the grinding wheel and the profile by providing a pressure mechanism. The dynamic adjustment process can accompany the entire grinding process, ensuring that even if the thickness or curvature of the profile changes, the pressure of the grinding wheel on the profile surface can always be within the set range, and can be fully matched with the angle adjustment mechanism, thereby optimizing the problem of pressure value change on the contact surface during the pressure angle adjustment process, further improving the grinding quality, avoiding damage to the profile surface, and more in line with the actual application requirements of current metal door and window profile grinding; The present invention realizes flexible adjustment of the trigger sensitivity of the touch switch by providing a reset component, so that the starting conditions of the angle adjustment mechanism can be set more flexibly in actual application, and the adaptability of the equipment to different profiles and different grinding conditions is improved. At the same time, when the swing arm is tilted in the initial state due to aging of the compression spring or accidental contact of the screw, the angle can be quickly corrected by rotating the screw, which is convenient for maintenance and adjustment and has better practicality. The present invention realizes the rapid fixation of the profile to be processed on the base by providing a clamping assembly, the operation is simple and convenient, and profiles of different curvatures, different sizes and different thicknesses can also be adapted, which significantly improves the clamping capacity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first-view overall stereoscopic schematic diagram of the present invention; Figure 2 It is a second perspective overall stereoscopic schematic diagram of the present invention; Figure 3 It is the overall front view of the present invention; Figure 4 For the present invention Figure 3 An enlarged schematic diagram at A in FIG. Figure 5 It is a schematic front view of the internal structure of the pressure mechanism of the present invention; Figure 6 For the present invention Figure 5 The enlarged schematic diagram at B in FIG. Figure 7 It is a schematic side view of the internal structure of the pressure mechanism of the present invention; Figure 8 It is a schematic side view of the internal structure of the clamping assembly of the present invention; Fig. 9 It is a working schematic diagram of the present invention.

[0015] In the figure: 1, base; 2, support frame; 3, linear slide; 4, angle adjustment mechanism; 401, arc slide; 402, positioning plate; 403, positioning shaft; 404, swing arm; 405, U-shaped sleeve; 406, touch switch; 407, reset assembly; 4071, mounting plate; 4072, screw; 4073, compression spring; 5, pressure mechanism; 501, sleeve box; 502, screw; 503, power unit; 504, pressure box; 505, telescopic frame; 506, electromagnet; 507, permanent magnet; 508, proximity switch; 509, trigger; 6, grinding roller group; 7, controller; 8, clamping assembly; 801, slide groove; 802, slide seat; 803, positioning nut; 804, top block; 805, positioning seat; 806, sliding sleeve; 807, push rod; 808, push rod; 809, connecting piece; 9, counterweight. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] It should be noted that when an element is referred to as being "fixed", "mounted", "connected" or "disposed" with another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation in the specification, and therefore cannot be understood as limiting the present invention.

[0018] As a further improvement of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0019] See also Figure 1-9 As shown, the present invention provides a technical solution for a grinding device for processing metal doors and windows: a grinding device for processing metal doors and windows, comprising a base 1 and a support frame 2 installed on one side of the upper end surface of the base 1, an electrically driven linear slide 3 is horizontally installed on the upper end of the support frame 2, an angle adjustment mechanism 4 for adjusting the grinding pressure angle is installed on the driving member of the linear slide 3, a pressure mechanism 5 for adjusting the grinding contact pressure is installed at the lower end of the angle adjustment mechanism 4, a grinding roller group 6 for door and window frame grinding operation is installed at the lower end of the pressure mechanism 5, the grinding roller group 6 includes a grinding wheel and a motor, a controller 7 is also fixedly installed on the angle adjustment mechanism 4, and a clamping assembly 8 for positioning the door and window frame is installed on the upper end surface of the base 1 below the grinding roller group 6.

[0020] The angle adjustment mechanism 4 includes an arc-shaped slide rail 401, a U-shaped sleeve 405 and a reset assembly 407. The arc-shaped slide rail 401 is fixedly mounted on the driving member of the linear slide rail 3. The arc-shaped slide rail 401 is an electric slide rail. A positioning plate 402 is fixedly mounted on the driving member of the arc-shaped slide rail 401. A positioning shaft 403 is centrally provided at the lower end of the positioning plate 402. A swing arm 404 is rotatably connected to the positioning shaft 403. The swing arm 404 can rotate with the positioning shaft 403 as the axis. The pressure mechanism 5 is mounted at the lower end of the swing arm 404. The U-shaped sleeve 405 is installed on the side wall of the positioning plate 402 and sleeved on the upper end of the swing arm 404. Touch switches 406 are installed on the inner walls on both sides of the U-shaped sleeve 405. When the swing arm 404 rotates and contacts the touch switches 406 on both sides, it is triggered and sends an electrical signal to the controller 7. The touch switches 406 are elastically installed on the inner walls on both sides of the U-shaped sleeve 405 to ensure buffering after contact. When the swing arm 404 is in a naturally drooping state, the shorter the distance between the touch switch 406 and the swing arm 404, the more sensitive the triggering. The reset component 407 is symmetrically and movably installed on the side wall of the positioning plate 402 to correct the distance between the end of the swing arm 404 and the touch switches 406 on both sides during the grinding process. Before starting the equipment, the reset component 407 should be adjusted to fit the two sides of the swing arm 404 to ensure that the upper end of the swing arm 404 should be in the middle of the U-shaped sleeve 405 when it naturally droops.

[0021] When it is necessary to grind the curved door and window frame, fix the frame of the curved door and window on the base 1, then start the motor on the grinding roller group 6, the grinding wheel starts to rotate, and the feed is controlled by the pressure mechanism 5 until the grinding roller group 6 fits the surface of the profile to be processed, and then the driving part on the linear slide rail 3 is started, driving the grinding wheel to move horizontally to start grinding.

[0022] When grinding to the curved surface, such as Fig. 9 As shown, the grinding wheel of the grinding roller group 6 is first subjected to a reaction force perpendicular to the contact surface of the profile, that is, an inclined reaction force. This force drives the swing arm 404 to overcome the limit of the reset component 407 and rotate with the positioning shaft 403 as the axis. The upper end of the swing arm 404 is then contacted and triggered by the touch switch 406. After receiving the signal from the touch switch 406, the controller 7 synchronously controls the driving member on the arc slide rail 401 to start moving a certain distance, and actively adjusts the angle between the swing arm 404 and the contact surface between the grinding wheel and the profile, until the swing arm 404 is reset and separated from the touch switch 406 under the thrust of the reset component 407. At this time, the swing arm 404 is perpendicular to the contact surface between the profile and the grinding wheel, and the pressure applied by the grinding wheel of the grinding roller group 6 on the profile is also perpendicular to the contact surface between the profile and the grinding wheel. The controller 7 determines the moving direction of the driving member on the arc-shaped slide rail 401 by distinguishing the signals sent by the touch switches 406 on the left and right sides. As long as the touch switch 406 is in contact with the swing arm 404, the driving member on the arc-shaped slide rail 401 keeps moving until the swing arm 404 separates from the touch switch 406.

[0023] Through the angle adjustment mechanism 4, it is achieved that when grinding the curved profile, the direction of the pressure applied by the grinding wheel on the profile is always perpendicular to the contact surface, thereby avoiding the problem of over-grinding, insufficient grinding or even uneven grinding of the curved surface of the profile, and significantly improving the grinding quality of the curved profile. At the same time, the adjustment of the pressure direction also reduces the loss of the grinding wheel during the grinding process, and significantly increases the actual service life of the grinding wheel. Secondly, by utilizing the combination of the touch switches 406 on both sides of the swing arm 404, dynamic automatic adjustment of the entire process is achieved, with rapid response, no need for staff intervention, simplified operation process, and improved grinding accuracy.

[0024] The pressure mechanism 5 includes a sleeve box 501, a pressure box 504, an electromagnet 506 and a proximity switch 508. The sleeve box 501 is installed at the lower end of the swing arm 404, and a screw rod 502 is symmetrically connected to one side of the sleeve box 501 for rotation. The upper end of the sleeve box 501 is installed with a power unit 503 for driving the screw rod 502 to rotate. Figure 7As shown, the power unit 503 includes a motor and a gear set, which drive the two screw rods 502 to rotate synchronously. The gear set can be composed of several gears for adjusting the gear ratio and the direction of the screw rod 502. The pressure box 504 is slidably connected in the sleeve box 501. One side of the pressure box 504 is connected to the sliding member on the screw rod 502. The pressure box 504 is driven to move up and down in the sleeve box 501 by the rotation of the screw rod 502. A telescopic frame 505 is slidably connected in the pressure box 504, and the grinding roller group 6 is installed at the lower end of the telescopic frame 505. The electromagnet 506 is installed at the upper end of the inner wall of the pressure box 504, and a permanent magnet 507 matching the electromagnet 506 is installed at the upper end of the telescopic frame 505. The proximity switch 508 is embedded and installed on the inner wall of the pressure box 504 from top to bottom, and a trigger 509 for triggering the proximity switch 508 is installed at the end of the telescopic frame 505.

[0025] Before grinding, the pressure box 504 should be located at the top of the sleeve box 501, and the grinding roller set 6 is suspended at the highest point. At the same time, the controller 7 energizes the electromagnet 506 according to the set grinding pressure, and the electromagnet 506 generates a constant repulsive force or friction force on the permanent magnet 507 by adjusting the current size and direction.

[0026] The magnitude and direction of the current of the electromagnet 506 should be determined according to the magnitude of the pressure that the grinding wheel needs to apply to the profile. When the screw rod 502 controls the pressure box 504 to descend until the grinding wheel fits the profile surface, and the trigger 509 is located between the upper and lower proximity switches 508, the pressure applied by the grinding wheel on the profile surface is obtained by combining the attraction or repulsion of the electromagnet 506 on the permanent magnet 507. The pressure can be adjusted by controlling the magnitude and direction of the current on the electromagnet 506.

[0027] After the profile is fixed on the base 1 by the clamping assembly 8, the grinding roller group 6 is started, and the grinding wheel begins to rotate at high speed. Then the power unit 503 is started to control the screw rod 502 to rotate and drive the pressure box 504, the telescopic frame 505 and the grinding roller group 6 to fall until the trigger member 509 is located between the upper and lower proximity switches 508. At this time, since the electromagnet 506 outputs the set attraction or repulsion force on the permanent magnet 507 and the telescopic frame 505, the pressure applied by the grinding wheel to the profile surface reaches the set pressure range.

[0028] If the grinding wheel of the grinding roller group 6 moves to the curved surface of the profile during horizontal movement, the grinding wheel will be subjected to the tilting reaction force. As the reaction force of the grinding wheel increases, the force balance is broken. Under the effect of the tilting reaction force, the telescopic frame 505 will overcome the magnetic force of the electromagnet 506 and shrink into the pressure box 504 until the trigger 509 contacts the proximity switch 508 on one side and is triggered. After receiving the signal, the controller 7 starts the power unit 503 to rotate the screw rod 502, driving the pressure box 504 to move upward a certain distance, so that the trigger 509 returns to the position between the two proximity switches 508. During the grinding process, when the current of the electromagnet 506 remains unchanged, as long as the trigger 509 is located between the two proximity switches 508, it means that the pressure applied by the grinding wheel to the profile surface is within the set range. This control principle is used regardless of whether it is processing a concave curved surface or a convex curved surface.

[0029] Through the pressure mechanism 5, dynamic adjustment of the pressure value at the contact point between the grinding wheel and the profile is achieved. The dynamic adjustment process can accompany the entire grinding process to ensure that even if the thickness or curvature of the profile changes, the pressure of the grinding wheel on the profile surface can always be within the set range, and can be fully matched with the angle adjustment mechanism 4, thereby optimizing the problem of pressure value changes on the contact surface during the pressure angle adjustment process, further improving the grinding quality, avoiding damage to the profile surface, and more in line with the current actual application needs of metal door and window profile grinding.

[0030] The reset assembly 407 includes a mounting plate 4071 and a screw rod 4072. The mounting plate 4071 is symmetrically fixed on the side wall of the positioning plate 402 and located on both sides of the swing arm 404. The screw rod 4072 is threadedly connected in the threaded hole on the mounting plate 4071, and the end of the screw rod 4072 is rotatably connected to a compression spring 4073, and the end of the compression spring 4073 away from the screw rod 4072 is pressed against the side walls of the swing arm 404.

[0031] The compression amount of the compression spring 4073 can be adjusted by rotating the screw 4072. The greater the compression amount, the greater the force required for the swing arm 404 to overcome the elastic force of the compression spring 4073, that is, the greater the reaction force required when the profile arc surface contacts the grinding wheel. In other words, the greater the deformation of the compression spring 4073, the more difficult it is to trigger the touch switch 406, and the lower the sensitivity of the angle adjustment mechanism 4. Before starting to grind, the staff should first check whether the swing arm 404 is in a vertical state and the upper end is located in the middle of the U-shaped sleeve 405. If it is tilted, it can also be adjusted by rotating the screws 4072 on both sides to adjust the thrust on both sides of the swing arm 404.

[0032] Through the reset component 407, flexible adjustment of the trigger sensitivity of the touch switch 406 is achieved, so that the starting conditions of the angle adjustment mechanism 4 can be set more flexibly during actual application, thereby improving the adaptability of the equipment to different profiles and different grinding conditions. At the same time, when the swing arm 404 is tilted in the initial state due to aging of the compression spring 4073 or accidental contact of the screw 4072, the angle can be quickly corrected by rotating the screw 4072, which is convenient for maintenance and adjustment and has better practicality.

[0033] The clamping assembly 8 includes a slide groove 801 and a top block 804. The slide groove 801 is provided through the upper end surface of the base 1, and a slide seat 802 is slidably connected in the slide groove 801. Positioning nuts 803 are threadedly connected at both ends of the slide seat 802. Generally, two slide seats 802 are required. The top block 804 is provided on one side of the upper end surface of the slide seat 802, and a positioning seat 805 is integrally formed on the other side of the upper end surface of the slide seat 802. A sleeve 806 is slidably connected in the sleeve at the end of the positioning seat 805, and a top rod 807 is threadedly connected at the end of the sleeve 806. A push rod 808 is rotatably connected to the bracket at the end of the positioning seat 805, and a connecting piece 809 is rotatably connected between the bending point of the sleeve 806 and the push rod 808 through a pin.

[0034] When it is necessary to fix the profile, such as Fig. 9 As shown, the profile is first placed horizontally on the slide 801, at which point there are at least two contact points between the profile and the slide 801, then the slide 802 is moved horizontally to the contact point between the profile and the slide 801, and the profile is placed above the slide 802, then the push rod 807 is rotated, and the distance between the push rod 807 and the sliding sleeve 806 is adjusted, and then the handle of the push rod 808 is pushed forward, and the push rod 808 pushes the sliding sleeve 806 and the push rod 807 horizontally until both sides of the profile are supported by the push block 804 and the push rod 807. The positioning of the profile is completed.

[0035] The clamping assembly 8 can be used to quickly fix the profile to be processed on the base 1. The operation is simple and convenient. Profiles with different curvatures, sizes and thicknesses can also be adapted, which significantly improves the clamping capacity of the equipment.

[0036] A counterweight 9 is installed on one side of the sleeve 501 for adjusting the overall center of gravity. Because the screw rod 502 and the power unit 503 are installed on one side of the sleeve 501, it is not a bilaterally symmetrical structure. Therefore, if there is no interference, the overall center of gravity of the swing arm 404 will not be on the axis of the positioning shaft 403, which will increase the difficulty of adjusting the swing arm 404 and affect the triggering accuracy of the touch switch 406.

[0037] The controller 7 is electrically connected to the linear slide 3, the arc slide 401, the touch switch 406, the power unit 503, the electromagnet 506 and the proximity switch 508 through wires. The controller 7 receives the electrical signals of each sensor through the wires and sends out a control signal. The signal transmitted through the wires is stable and has no delay.

[0038] The swing angle of the swing arm 404 around the positioning shaft 403 is plus or minus 1 degree, which is determined by the width of the inner wall of the U-shaped sleeve 405 and the distance from the touch switch 406 to the swing arm 404 .

[0039] Soft anti-skid pads are installed on the adjacent end surfaces of the top block 804 and the top rod 807. The soft anti-skid pads can protect the side walls of the profile from being damaged during clamping, and can also increase the friction of clamping.

[0040] Working principle: before starting to polish, the pressure box 504 should be located at the top of the sleeve box 501, and the controller 7 energizes the electromagnet 506 according to the set polishing pressure to generate a constant repulsive force or friction force on the permanent magnet 507. When it is necessary to polish the curved door and window frame, first place the profile horizontally on the slide 801, then move the slide seat 802 horizontally, place the profile above the slide seat 802, and then push the handle of the push rod 808 forward until both sides of the profile are supported by the top block 804 and the top rod 807, and the profile positioning is completed. Then the grinding roller set 6 is started, and the grinding wheel starts to rotate at high speed. Then the power unit 503 controls the screw rod 502 to rotate and drive the pressure box 504, the telescopic frame 505 and the grinding roller set 6 to fall until the trigger member 509 is located between the upper and lower proximity switches 508. At this time, since the electromagnet 506 outputs the set attraction or repulsion force to the permanent magnet 507 and the telescopic frame 505, the pressure applied by the grinding wheel to the surface of the profile reaches the set pressure range.

[0041] Then the controller 7 controls the driving member on the linear guide rail 3 to start, driving the grinding wheel to move horizontally to start grinding. Fig. 9As shown, when grinding to the curved surface of the profile, the grinding wheel of the grinding roller set 6 is first subjected to the reaction force of the tilt, driving the swing arm 404 to overcome the limit of the compression spring 4073 and rotate around the positioning shaft 403, and the upper end of the swing arm 404 triggers the touch switch 406. After receiving the signal of the touch switch 406, the controller 7 synchronously controls the driving member on the arc slide rail 401 to start moving a certain distance until the swing arm 404 is separated from the touch switch 406. At this time, the pressure applied by the grinding wheel of the grinding roller set 6 to the profile is perpendicular to the contact surface between the profile and the grinding wheel. During the above angle adjustment process, the telescopic frame 505 will also retract into the pressure box 504 under the effect of the tilt reaction force until the trigger member 509 contacts the proximity switch 508 on one side and is triggered. After receiving the signal, the controller 7 starts the power unit 503 to rotate the screw rod 502, driving the pressure box 504 to move upward a certain distance, so that the trigger member 509 returns to the position between the two proximity switches 508 and is dynamically adjusted throughout the process until the grinding is completed.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for metal door and window processing, comprising a base (1) and a support frame (2) arranged on one side of the upper end surface of the base (1), characterized in that: An electrically driven linear slide rail (3) is horizontally arranged at the upper end of the support frame (2); an angle adjustment mechanism (4) for adjusting the grinding pressure angle is arranged on the driving member of the linear slide rail (3); a pressure mechanism (5) is arranged at the lower end of the angle adjustment mechanism (4); a grinding roller group (6) for grinding door and window frames is arranged at the lower end of the pressure mechanism (5); a controller (7) is also arranged on the angle adjustment mechanism (4); and a clamping assembly (8) for positioning the door and window frames is arranged on the upper end surface of the base (1) below the grinding roller group (6); The angle adjustment mechanism (4) comprises: An arc-shaped slide rail (401), wherein the arc-shaped slide rail (401) is arranged on a driving member of a linear slide rail (3), wherein the arc-shaped slide rail (401) is an electric slide rail, wherein a positioning plate (402) is arranged on the driving member of the arc-shaped slide rail (401), wherein a positioning shaft (403) is provided at the center of the lower end of the positioning plate (402), wherein a swing arm (404) is rotatably connected to the positioning shaft (403), and wherein the pressure mechanism (5) is arranged at the lower end of the swing arm (404); A U-shaped sleeve (405), the U-shaped sleeve (405) being arranged on the side wall of the positioning plate (402) and sleeved on the upper end of the swing arm (404), and touch switches (406) being arranged on the inner walls on both sides of the U-shaped sleeve (405); A reset component (407) is symmetrically arranged on the side wall of the positioning plate (402) and is used to correct the distance between the end of the swing arm (404) and the touch switches (406) on both sides during the grinding process.

2. The grinding device for metal doors and windows according to claim 1, characterized in that: The pressure mechanism (5) comprises: A sleeve box (501), the sleeve box (501) being arranged at the lower end of the swing arm (404), a screw rod (502) being symmetrically arranged on one side inside the sleeve box (501), and a power unit (503) for driving the screw rod (502) to rotate being arranged at the upper end of the sleeve box (501); A pressure box (504), the pressure box (504) being movably arranged in the sleeve box (501), one side of the pressure box (504) being connected to a sliding member on the screw rod (502), a telescopic frame (505) being slidably connected in the pressure box (504), and the grinding roller group (6) being arranged at the lower end of the telescopic frame (505); An electromagnet (506), wherein the electromagnet (506) is arranged at the upper end of the inner wall of the pressure box (504), and a permanent magnet (507) matching the electromagnet (506) is arranged at the upper end of the telescopic frame (505); A proximity switch (508) is disposed vertically on the inner wall of the pressure box (504); a trigger member (509) for triggering the proximity switch (508) is disposed at the end of the telescopic frame (505).

3. The grinding device for metal doors and windows according to claim 1, characterized in that: The reset component (407) comprises: A mounting plate (4071), wherein the mounting plate (4071) is symmetrically arranged on the side wall of the positioning plate (402) and located on both sides of the swing arm (404); A screw rod (4072) is threadedly connected to a threaded hole on the mounting plate (4071); an end of the screw rod (4072) is rotatably connected to a compression spring (4073); an end of the compression spring (4073) away from the screw rod (4072) is pressed against the side walls of the swing arm (404).

4. The grinding device for metal doors and windows according to claim 1, characterized in that: The clamping assembly (8) comprises: A slide groove (801), wherein the slide groove (801) is provided on the upper end surface of the base (1), a slide seat (802) is slidably connected in the slide groove (801), and positioning nuts (803) are threadedly connected at both ends of the slide seat (802); A top block (804) is arranged on one side of the upper end surface of the slide seat (802); a positioning seat (805) is arranged on the other side of the upper end surface of the slide seat (802); a sleeve (806) is slidably connected in a sleeve at the end of the positioning seat (805); a top rod (807) is threadedly connected to the end of the sleeve (806); a push rod (808) is rotatably connected to the bracket at the end of the positioning seat (805); a connecting piece (809) is rotatably connected between the bending point of the sleeve (806) and the push rod (808) via a pin shaft.

5. The grinding device for metal doors and windows according to claim 2, characterized in that: A counterweight (9) is provided on one side of the casing (501) for adjusting the overall center of gravity.

6. The grinding device for metal doors and windows according to claim 2, characterized in that: The controller (7) is electrically connected to the linear slide rail (3), the arc-shaped slide rail (401), the touch switch (406), the power unit (503), the electromagnet (506) and the proximity switch (508) respectively through wires.

7. The grinding device for metal doors and windows according to claim 1, characterized in that: The swing angle of the swing arm (404) around the positioning axis (403) is plus or minus 1 degree.

8. The grinding device for metal doors and windows according to claim 4, characterized in that: A soft anti-slip pad is provided on the adjacent end surfaces of the top block (804) and the top rod (807).

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