Polishing device for door and window frame machining
By combining electric actuators and worm gear mechanisms, flexible clamping and automatic flipping and grinding of door and window frames are achieved, solving the problems of frame damage caused by excessive clamping force and cumbersome flipping operations in existing technologies, and improving grinding efficiency and convenience.
Patent Information
- Application Number
- CN202520333725.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing door and window frame grinding devices are prone to damage to the frame due to excessive clamping force during fixing, and it is not easy to flip the frame for grinding. The operation is cumbersome and inefficient.
An electric actuator drives a suction cup for fixation and spring buffer clamping, combined with a worm gear mechanism to achieve frame flipping and grinding. A motor drives a bidirectional lead screw and an electric guide rail for flipping and grinding.
It achieves flexible clamping of door and window frames, avoiding damage to the frames due to excessive clamping force, and improves grinding efficiency and ease of operation through automatic flipping.
Smart Images

Figure CN223834275U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window processing technology, specifically a grinding device for processing door and window frames. Background Technology
[0002] A door and window frame is a structural frame used to support and fix doors and windows. It connects the glass, door leaf, and other components of doors and windows, giving them stability, durability, and safety. The selection and design of door and window frames have a significant impact on the performance and appearance of doors and windows. During the processing of door and window frames, grinding equipment is required for polishing.
[0003] In existing technologies, door and window frame grinding devices often use rigid clamping methods when fixing door and window frames, lacking necessary buffering mechanisms. This can easily lead to damage to the door and window frames due to excessive clamping force, affecting the grinding quality and frame integrity. In addition, existing grinding devices can usually only grind one side of the door and window frame. For frames that need to be ground on both sides, manual flipping is required, which is cumbersome and inefficient, increasing labor intensity and production costs, and is not conducive to achieving efficient grinding operations.
[0004] Therefore, a grinding device for processing door and window frames is needed to solve the problems of existing grinding devices that easily damage door and window frames due to excessive clamping force when fixing them, and that it is not easy to flip the door and window frames for grinding. Utility Model Content
[0005] The purpose of this utility model is to provide a grinding device for processing door and window frames, so as to solve the problems of existing grinding devices that easily damage door and window frames due to excessive clamping force when fixing them, and that it is not easy to flip the door and window frames for grinding.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for processing door and window frames, comprising a U-shaped frame, wherein clamping mechanisms are provided on both outer walls of the U-shaped frame;
[0007] Each clamping mechanism includes an electric actuator, which is mounted on one outer wall of the U-shaped frame. The output end of the electric actuator slides through one inner wall of the U-shaped frame and is coaxially fixedly connected to a mounting box. A fixing plate is provided on the outer wall of the mounting box away from the electric actuator. Three evenly distributed clamping columns are fixedly connected to the outer wall of the fixing plate away from the mounting box. Each clamping column has a buffer cavity inside. A sliding plate is slidably connected inside the buffer cavity. A spring is fixedly connected between one outer wall of the sliding plate and one inner wall of the buffer cavity. A sliding rod is coaxially fixedly connected to the other outer wall of the sliding plate. The sliding rod slides through one outer wall of the clamping column away from the sliding plate and is coaxially mounted with a suction cup. A rotating component is provided inside the mounting box of each clamping mechanism.
[0008] It should be noted in the scheme that each set of rotating components includes a rotating shaft, a worm gear, and a motor. The rotating shaft is rotatably connected between the centers of the inner walls on both sides of the mounting box. A worm wheel is fastened to the outer surface of the rotating shaft. The worm gear is rotatably connected between the inner walls of the top and bottom surfaces of the mounting box. The motor is installed on the top surface of the mounting box.
[0009] It is worth noting that the inner wall of the bottom surface of the U-shaped frame is provided with a movable groove, and a bidirectional lead screw is rotatably connected between the two inner side walls of the movable groove. Two symmetrically distributed T-shaped blocks are threaded to the outer surface of the bidirectional lead screw. Two parallel connecting rods are rotatably connected to the top surface of each of the two T-shaped blocks. The top ends of the four connecting rods are rotatably connected to the same placement platform. A second motor is installed at the bottom of the right outer wall of the U-shaped frame.
[0010] Furthermore, it should be noted that an L-shaped frame is fixedly connected to the right side of the top surface of the U-shaped frame, and an electric push rod 2 is installed on the top surface of the horizontal section of the L-shaped frame. The output end of the electric push rod 2 slides through the bottom surface of the horizontal section of the L-shaped frame and is equipped with an electric guide rail. A grinder is installed on the bottom surface of the electric guide rail.
[0011] In a preferred embodiment, one side of the outer wall of each shaft rotatably passes through one side of the outer wall of the corresponding mounting box and is coaxially and fixedly connected to one side of the outer wall of the corresponding fixing plate, and each worm gear is meshed with the corresponding worm.
[0012] In one preferred embodiment, the output end of each of the first motors rotates through the inner wall of the top surface of the corresponding mounting box and is coaxially and fixedly connected to the top of the corresponding worm gear; the output end of the second motor rotates through one side wall of the movable slot and is coaxially and fixedly connected to one side outer wall of the bidirectional lead screw.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The suction cup is moved by the electric push rod to adsorb and fix the door and window frame. During this process, the slide rod pushes the slide plate to squeeze the spring. The spring deforms under force to buffer the squeezing force, thereby achieving the clamping and buffering of the door and window frame and preventing the door and window frame from being damaged due to excessive clamping force. This effectively avoids the problem of frame damage caused by excessive clamping force when the grinding device fixes the door and window frame.
[0015] 2. The motor drives the worm gear to rotate, which in turn drives the worm wheel to rotate. This causes the worm wheel to rotate the fixed plate via the shaft, enabling the flipping operation of the door and window frame. This saves time and effort and effectively avoids the problem of the grinding device not being able to flip and grind the door and window frame. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a front view cross-sectional structural diagram of the U-shaped frame of this utility model;
[0018] Figure 3 This is a front view cross-sectional structural diagram of one of the clamping columns of this utility model;
[0019] Figure 4 This is a side view sectional structural diagram of one of the mounting boxes of this utility model.
[0020] The following are the labels in the diagram: 1. U-shaped frame; 2. Clamping mechanism; 21. Electric actuator one; 22. Mounting box; 23. Fixing plate; 24. Clamping column; 25. Buffer chamber; 26. Slide plate; 27. Spring; 28. Slide rod; 29. Suction cup; 3. Rotating assembly; 31. Rotating shaft; 32. Worm gear; 33. Worm; 34. Motor one; 4. Movable groove; 5. Two-way lead screw; 6. T-block; 7. Connecting rod; 8. Placement platform; 9. Motor two; 10. L-shaped frame; 11. Electric actuator two; 12. Electric guide rail; 13. Grinding machine. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example: Figures 1-4 As shown, this utility model provides a technical solution, including a U-shaped frame 1, with clamping mechanisms 2 provided on both outer walls of the U-shaped frame 1;
[0023] Each clamping mechanism 2 includes an electric push rod 21, which is installed on the outer wall of one side of the U-shaped frame 1. The output end of the electric push rod 21 slides through the inner wall of one side of the U-shaped frame 1 and is coaxially fixedly connected to a mounting box 22. A fixing plate 23 is provided on the outer wall of the mounting box 22 away from the electric push rod 21. Three clamping posts 24 are fixedly connected on the outer wall of the fixing plate 23 away from the mounting box 22. Each clamping post 24 has a buffer cavity 25 inside. A sliding plate 26 is slidably connected inside the buffer cavity 25. A spring 27 is fixedly connected between the outer wall of one side of the sliding plate 26 and the inner wall of the buffer cavity 25. A sliding rod 28 is coaxially fixedly connected to the outer wall of the other side of the sliding plate 26. The sliding rod 28 slides through the outer wall of one side of the clamping post 24 and is coaxially installed with a suction cup 29. Each clamping mechanism 2 has a rotating assembly 3 inside the mounting box 22.
[0024] Further as Figure 3 and Figure 4 As shown, it is worth noting that each set of rotating components 3 includes a rotating shaft 31, a worm gear 33, and a motor 34. The rotating shaft 31 is rotatably connected between the centers of the inner walls on both sides of the mounting box 22. A worm wheel 32 is fastened to the outer surface of the rotating shaft 31. The worm gear 33 is rotatably connected between the inner walls of the top and bottom surfaces of the mounting box 22. The motor 34 is installed on the top surface of the mounting box 22.
[0025] Further as Figure 1 and Figure 2 As shown, it is worth noting that the inner wall of the bottom surface of the U-shaped frame 1 has a movable groove 4. A two-way screw 5 is rotatably connected between the two inner side walls of the movable groove 4. Two symmetrically distributed T-shaped blocks 6 are threaded to the outer surface of the two-way screw 5. Two parallel connecting rods 7 are rotatably connected to the top surface of each of the two T-shaped blocks 6. The top of the four connecting rods 7 is rotatably connected to the same placement platform 8. A motor 2 9 is installed at the bottom of the right outer wall of the U-shaped frame 1.
[0026] Further as Figure 1 As shown, it is worth noting that an L-shaped frame 10 is fixedly connected to the right side of the top surface of the U-shaped frame 1. An electric push rod 11 is installed on the top surface of the horizontal section of the L-shaped frame 10. The output end of the electric push rod 11 slides through the bottom surface of the horizontal section of the L-shaped frame 10 and is equipped with an electric guide rail 12. A grinder 13 is installed on the bottom surface of the electric guide rail 12.
[0027] Further as Figure 3 and Figure 4 As shown, it is worth noting that one side of the outer wall of each rotating shaft 31 rotatably passes through one side of the outer wall of the corresponding mounting box 22 and is coaxially and fixedly connected to one side of the outer wall of the corresponding fixing plate 23. Each worm gear 32 is meshed with the corresponding worm 33. Through the cooperation between the worm gear 32 and the worm 33, the worm gear 32 drives the rotating shaft 31 to rotate, thereby driving the fixing plate 23 to rotate.
[0028] Further as Figure 2 and Figure 4 As shown, it is worth noting that the output end of each motor 34 rotates through the inner wall of the top surface of the corresponding mounting box 22 and is coaxially and fixedly connected to the top of the corresponding worm 33, providing a power source for the rotation of the worm 33. The output end of the motor 9 rotates through one side wall of the movable groove 4 and is coaxially and fixedly connected to one side outer wall of the bidirectional lead screw 5. The motor 9 drives the bidirectional lead screw 5 to rotate, thereby driving the two T-blocks 6 to move and causing the placement platform 8 to move up and down.
[0029] In summary: When using this grinding device, first place the door and window frame to be ground on the top surface of the placement platform 8. Then, simultaneously activate both electric push rods 21. The electric push rods 21 push the fixing plate 23, moving the clamping column 24 towards one side of the door and window frame. When the suction cup 29 on the clamping column 24 contacts the outside of the door and window frame, it adsorbs and fixes the door and window frame. At the same time, push the slide rod 28 to slide inside the buffer cavity 25. The slide rod 28 pushes the sliding plate 26 to compress the spring 27, which in turn compresses the spring. The deformation of 27 buffers the compressive force, thereby achieving the clamping buffer of the electric push rod 21 on the door and window frame, preventing excessive clamping force from damaging the door and window frame, and effectively avoiding the problem of frame damage caused by excessive clamping force when the grinding device fixes the door and window frame. Then, the electric push rod 21, electric guide rail 12 and grinding machine 13 are turned on. The electric push rod 211 pushes the grinding machine 13 to contact the top surface of the door and window frame, and the electric guide rail 12 drives the grinding machine 13 to move, so as to perform comprehensive grinding on the top surface of the door and window frame.
[0030] When the other side of the door and window frame needs to be sanded, the electric actuator 11 is turned on to pull the sander 13 upward. At the same time, the motor 9 is turned on to drive the double-acting screw 5 to rotate. The double-acting screw 5 drives the two T-blocks 6 to move away from each other. The connecting rod 7 pulls the placement platform 8 downward. Then, the two motors 34 are turned on at the same time. The motors 34 drive the worm gear 33 to rotate, which drives the worm wheel 32 to rotate. The rotating shaft 31 drives the fixed plate 23 to rotate, thereby flipping the door and window frame. Then, the motor 9 and the electric actuator 11 are turned on again to raise the placement platform 8 to support the door and window frame. The sander 13 descends to sand the flipped door and window frame. This saves time and effort and effectively avoids the problem that the sanding device is not easy to flip and sand the door and window frame.
[0031] Electric actuator 21, motor 34, motor 9, electric actuator 11, electric guide rail 12, and grinding machine 13 can all be purchased from the market. These are mature technologies in this field and have been fully disclosed. Therefore, they will not be repeated in the specification.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A grinding device for processing door and window frames, comprising a U-shaped frame (1), characterized in that: The U-shaped frame (1) is provided with clamping mechanisms (2) on both outer walls; Each clamping mechanism (2) includes an electric actuator (21), which is mounted on the outer wall of one side of the U-shaped frame (1). The output end of the electric actuator (21) slides through the inner wall of one side of the U-shaped frame (1) and is coaxially fixedly connected to a mounting box (22). A fixing plate (23) is provided on the outer wall of the mounting box (22) away from the electric actuator (21). Three evenly distributed clamping columns (24) are fixedly connected on the outer wall of the fixing plate (23) away from the mounting box (22). Each clamping column (24) has a... A buffer cavity (25) is provided, and a slide plate (26) is slidably connected inside the buffer cavity (25). A spring (27) is fixedly connected between the outer wall of one side of the slide plate (26) and the inner side wall of the buffer cavity (25). A slide rod (28) is coaxially fixedly connected to the outer wall of the other side of the slide plate (26). The slide rod (28) slides through the outer wall of the clamping column (24) away from the slide plate (26) and is coaxially mounted with a suction cup (29). A rotating component (3) is provided inside the mounting box (22) of each clamping mechanism (2).
2. The grinding device for processing door and window frames according to claim 1, characterized in that: Each set of rotating components (3) includes a rotating shaft (31), a worm gear (33), and a motor (34). The rotating shaft (31) is rotatably connected between the centers of the inner walls on both sides of the mounting box (22). A worm wheel (32) is fastened to the outer surface of the rotating shaft (31). The worm gear (33) is rotatably connected between the inner wall of the top surface and the inner wall of the bottom surface of the mounting box (22). The motor (34) is installed on the top surface of the mounting box (22).
3. The grinding device for processing door and window frames according to claim 2, characterized in that: The U-shaped frame (1) has an movable groove (4) on its inner bottom wall. A two-way screw rod (5) is rotatably connected between the two inner side walls of the movable groove (4). Two symmetrically distributed T-shaped blocks (6) are threaded to the outer surface of the two-way screw rod (5). Two parallel connecting rods (7) are rotatably connected to the top surface of each of the two T-shaped blocks (6). The top of the four connecting rods (7) is rotatably connected to the same placement platform (8). A motor (9) is installed at the bottom of the right outer wall of the U-shaped frame (1).
4. The grinding device for processing door and window frames according to claim 3, characterized in that: An L-shaped frame (10) is fixedly connected to the right side of the top surface of the U-shaped frame (1). An electric push rod (11) is installed on the top surface of the horizontal section of the L-shaped frame (10). The output end of the electric push rod (11) slides through the bottom surface of the horizontal section of the L-shaped frame (10) and is equipped with an electric guide rail (12). A grinder (13) is installed on the bottom surface of the electric guide rail (12).
5. A grinding device for processing door and window frames according to claim 4, characterized in that: One side of the outer wall of each of the shafts (31) rotates through the outer side of the corresponding mounting box (22) and is coaxially fixedly connected to the outer side of the corresponding fixing plate (23). Each worm gear (32) is meshed with the corresponding worm (33).
6. A grinding device for processing door and window frames according to claim 5, characterized in that: The output end of each of the first motors (34) rotates through the inner wall of the top surface of the corresponding mounting box (22) and is coaxially fixedly connected to the top of the corresponding worm (33). The output end of the second motor (9) rotates through one side wall of the movable slot (4) and is coaxially fixedly connected to one side outer wall of the bidirectional lead screw (5).