Deburring device for high-precision elevator door plate

Abstract

The utility model discloses a high-precision deburring device for an elevator door plank, which comprises a rack, a deburring device and a deburring device, the positioning and supporting assembly comprises a supporting piece, and positioning units are arranged on the four sides of the supporting piece; the adjusting assembly comprises a steering unit, a telescopic unit and an adjusting frame, and the steering unit is in driving connection with the adjusting frame through the telescopic unit; the movable assembly is arranged on the adjusting frame, the movable assembly comprises a translation unit, a lifting unit and a first distance sensor, and the grinding assembly comprises a rotating unit and a grinding wheel detachably connected with the output end of the rotating unit. According to the deburring device for the high-precision elevator door plate, the grinding wheel is detachably connected with the output end of the rotating unit, so that the grinding wheel is conveniently and regularly detached and trimmed, the sharpness of grinding particles of the grinding wheel is maintained, the machining quality of the grinding wheel on the plate is guaranteed, the grinding wheel on the rotating unit can be regularly replaced, and the deburring precision of the plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet processing technology, and in particular to a high-precision deburring device for elevator door panels. Background Technology

[0002] Elevator door panels are key components in elevator design and safety. Their main function is to separate the elevator door from the elevator lobby, preventing accidental entry and exit, and also enhancing the overall image of the elevator. Elevator door panels are typically formed from sheet metal (especially stainless steel). During production, the pressure and impact from cutting tools or molds can easily create burrs on the edges and corners, negatively impacting the product's appearance, texture, adaptability, and safety. Therefore, deburring is necessary during the elevator door panel forming process.

[0003] In the prior art, such as the Chinese utility model patent with announcement number CN220427812U, a device for removing burrs from the edge of elevator panels is disclosed. The device uses the left and right sides of the processing base set by the vertical support arm to grind or polish the left and right sides of the panel according to the width of the panel or the width of the panel being processed. Multiple sets of fastening through holes are set to fasten the connection between the vertical support arm and the horizontal support plate, so as to prevent the angle grinder from shaking or shifting its processing position during processing.

[0004] During processing, the aforementioned device mainly relies on the high-speed rotation of the grinding wheel at the output end of the angle grinder to grind the surface of the sheet material. However, the grinding wheel is fixed to the output end of the angle grinder and is difficult to disassemble. After long-term use, due to the continuous contact and friction between the abrasive grains on the surface of the grinding wheel and the sheet material during the grinding process, the abrasive grains gradually wear and become dull, affecting the cutting ability and thus reducing the deburring effect. In addition, due to the high-speed rotation of the grinding wheel, there is a certain degree of vibration in the grinding wheel, which reduces the grinding accuracy of the sheet material.

[0005] Therefore, it is necessary to improve the deburring device for elevator door panels in the existing technology. Utility Model Content

[0006] The purpose of this invention is to overcome the defects in the existing technology and provide a high-precision deburring device for elevator door panels that facilitates the replacement and maintenance of grinding wheels and ensures processing accuracy.

[0007] To achieve the above-mentioned technical effects, the technical solution of this utility model is: a high-precision deburring device for elevator door panels, comprising:

[0008] The rack includes a base;

[0009] A positioning support assembly includes a support member disposed on the base to support the plate. At least two positioning units are disposed on each of the four sides of the support member. The positioning units on the two sides are distributed along a first direction, and the positioning units on the other two sides are distributed along a second direction. The first direction and the second direction are both horizontal and perpendicular to each other. The positioning units cooperate with each other to clamp the plate from the four sides and adjust the plate so that the length direction and the width direction are respectively the first direction and the second direction.

[0010] An adjustment component is provided, which is located directly above the positioning support component. The adjustment component includes a steering unit, a telescopic unit, and an adjustment frame. The adjustment frame is long and narrow. The steering unit is driven to connect to the adjustment frame through the telescopic unit, so as to rotate the adjustment frame sequentially to correspond to the positioning units on the four sides of the support component and to be in the same length direction as the distribution direction of the positioning units.

[0011] The system includes a movable component and a grinding component. The movable component is mounted on the adjustment frame and includes a translation unit, a lifting unit, and a first distance sensor. The movement direction of the output end of the translation unit is consistent with the length direction of the adjustment frame. The grinding component includes a rotating unit and a grinding wheel with a horizontal axis and detachably connected to the output end of the rotating unit. The rotating unit drives the grinding wheel to rotate around its own axis. The translation unit is mounted on the adjustment frame and is connected to the rotating unit via the lifting unit. The first distance sensor is used to detect the movement distance of the grinding component.

[0012] Preferably, in order to avoid the flying of debris during the grinding process and polluting the surrounding environment, the output end of the lifting unit is connected to a housing, and the grinding wheel is detachably rotatable inside the housing with its bottom end protruding from the bottom of the housing.

[0013] Preferably, in order to achieve the rotation of the grinding wheel, the rotating unit includes a rotary motor connected to the output end of the lifting unit. The rotary motor is connected to the output end of the lifting unit, and a drive wheel is coaxially connected to the output end of the rotary motor. The drive wheel is connected to a driven wheel via a synchronous belt. The driven wheel rotates around its own axis on one side of the housing. A synchronous shaft passing through the grinding wheel is detachably connected between the driven wheel and the housing. The synchronous shaft, the grinding wheel, and the driven wheel are coaxial.

[0014] Preferably, in order to ensure synchronous rotation between the grinding wheel and the driven wheel, the synchronous shaft is a round shaft, and a matching groove and a key are provided between the synchronous shaft, the driven wheel and the grinding wheel, and the groove and the key both extend along an axial direction parallel to the synchronous shaft.

[0015] Preferably, in order to drive the grinding wheel to rotate stably by means of the driven wheel and the synchronous shaft, a tube is provided on the coaxial center line of the end of the driven wheel adjacent to the synchronous shaft, the grinding wheel is annular, and the protruding key is provided on the inner wall of the tube and the inner wall of the grinding wheel.

[0016] Preferably, in order to facilitate the disassembly and connection of the grinding wheel and the synchronous shaft on the housing and the driven wheel, and to facilitate the replacement and maintenance of the grinding wheel, a threaded tube is provided on the side of the housing facing away from the insertion tube. The threaded tube is threaded with a bolt. A limit bracket is attached between the end of the threaded tube facing away from the insertion tube and the head of the bolt. The two ends of the synchronous shaft are respectively attached to the driven wheel and the limit bracket.

[0017] Preferably, in order to improve assembly accuracy, the limiting frame is provided with a first positioning tube and a second positioning tube, the circumferential inner wall of the first positioning tube and the circumferential inner wall of the second positioning tube respectively fitting against the circumferential outer edge of the synchronous shaft and the circumferential outer edge of the solenoid.

[0018] Preferably, in order to reduce axial offset and vibration during the high-speed rotation of the grinding wheel, ensure the high-speed stable rotation of the grinding wheel, improve the deburring accuracy of the plate, and thus improve the processing quality, ball bearings are provided on both sides of the shell facing each other. The ball bearings are arranged to rotate around their own center and are in contact with the end face of the grinding wheel.

[0019] Preferably, in order to facilitate the assembly of the ball bearings onto the inner wall of the housing, mounting holes are provided on the two side walls of the housing facing each other. Each mounting hole corresponds to a ball bearing. A mounting block is fixed inside the mounting hole, and the mounting block is provided with a cavity that is adapted to the ball bearing.

[0020] Preferably, in order to facilitate the connection between the ball bearing and the mounting block, the mounting block includes two opposing unit blocks, each of which has a notch on its opposing surface, and the notches of the two unit blocks are combined to form the cavity of the mounting block.

[0021] In summary, compared with the prior art, the high-precision deburring device for elevator door panels of this utility model, through the detachable connection between the grinding wheel and the output end of the rotating unit, facilitates the periodic removal and dressing of the grinding wheel to maintain the sharpness of the abrasive grains and ensure the processing quality of the plate. It also allows for the periodic replacement of the grinding wheel on the rotating unit, thereby improving the deburring precision of the plate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 yes Figure 1 The front view;

[0024] Figure 3 This is a schematic diagram of the connection structure of the frame and positioning support assembly of this utility model;

[0025] Figure 4 yes Figure 3 An explosion diagram;

[0026] Figure 5 This is a schematic diagram of the connection structure of the adjustment component, the movable component and the grinding component of this utility model;

[0027] Figure 6 yes Figure 5 An explosion diagram;

[0028] Figure 7 This is a schematic diagram of the connection structure between the movable component and the grinding component of this utility model;

[0029] Figure 8 yes Figure 7 An explosion diagram;

[0030] Figure 9 This is a schematic diagram of the connection structure between the grinding component and some of the moving components of this utility model;

[0031] Figure 10 yes Figure 9 An explosion diagram;

[0032] Figure 11 This is a schematic diagram of the connection structure between the grinding component and some of the moving components of this utility model from another perspective;

[0033] Figure 12 yes Figure 11 An explosion diagram;

[0034] Figure 13 This is a schematic diagram of the connection structure between the grinding wheel and the housing of this utility model;

[0035] Figure 14 yes Figure 13 An explosion diagram;

[0036] Figure 15 yes Figure 13 A schematic diagram of the cross-sectional structure;

[0037] Figure 16 This is a structural schematic diagram of the negative pressure component of this utility model;

[0038] Figure 17 yes Figure 16 An explosion diagram;

[0039] Figure 18 This is a cross-sectional structural diagram of the connection structure between the collection shell and the filter element of this utility model;

[0040] In the diagram: 1. Frame; 11. Base; 12. Bracket; 13. Positioning guide rod; 2. Positioning support assembly; 21. Support component; 211. Receiving notch; 22. Positioning unit; 221. Side clamp; 222. Moving unit; 223. Pallet; 224. Second distance sensor; 225. Positioning slider; 3. Adjustment assembly; 31. Steering unit; 311. Steering motor; 312. Bogie; 313. Steering bearing; 314. Steering barrel; 32. Telescopic unit; 321. Electric push rod; 322. Telescopic guide rod; 33. Adjustment frame; 34. Third distance sensor; 4. Movable assembly; 41. Translation unit; 411. Translation motor; 412. Translation screw; 413. Translation sleeve; 414. Support frame; 415. Translation frame; 416. Translation guide sleeve; 41 7. Translation guide rod; 42. Lifting unit; 421. Lifting motor; 422. Lifting screw; 423. Lifting sleeve; 424. Lifting plate; 425. Lifting guide tube; 43. First distance sensor; 44. Detection unit; 441. Detection frame; 442. Compression spring; 443. Pressure sensor; 444. Lifting guide rod; 445. Limiting ring; 5. Plate; 6. Grinding assembly; 61. Rotation unit; 611. Rotation motor; 612. Drive wheel; 613. Synchronous belt; 614. Driven wheel; 615. Synchronous shaft; 616. Groove; 617. Key; 62. Grinding wheel; 63. Housing; 631. Ball bearing; 632. Unit block; 633. Mounting hole; 634. Fixing bracket; 635. Polished bearing; 636. Suction pipe; 64. Insert pipe; 65. Screw; 66. Limiting bracket; 661. First positioning tube; 662. Second positioning tube; 67. Bolt; 7. Negative pressure assembly; 71. Collection shell; 711. Shell; 712. Shell cover; 713. Inner convex frame; 714. Vertical screw; 715. Nut; 72. Filter element; 721. Outer flange; 73. Negative pressure pump; 74. Air inlet; 75. Air outlet; 76. Hose; 77. Sealing gasket; 8. Control panel. Detailed Implementation

[0041] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0042] like Figures 1-18 As shown, the high-precision elevator door panel deburring device of this utility model includes:

[0043] Frame 1, which includes a base 11;

[0044] The positioning support assembly 2 includes a support member 21 disposed on the base 11 to horizontally support the plate 5. At least two positioning units 22 are disposed on each of the four sides of the support member 21. The positioning units 22 on the two sides are distributed along the first direction, and the positioning units 22 on the other two sides are distributed along the second direction. The first direction and the second direction are both horizontal and perpendicular to each other. The positioning units 22 cooperate with each other to clamp the plate 5 from the four sides and adjust the plate 5 so that the length direction and the width direction are respectively the first direction and the second direction.

[0045] Adjustment component 3 is located directly above positioning support component 2. Adjustment component 3 includes steering unit 31, telescopic unit 32 and adjustment frame 33. Adjustment frame 33 is long and narrow. Steering unit 31 is driven to adjust frame 33 through telescopic unit 32 so as to rotate adjustment frame 33 sequentially to correspond to positioning units 22 on the four sides of support component 21 and to be in the same length direction as the distribution direction of positioning units 22.

[0046] The movable component 4 and the grinding component 6 are mounted on the adjusting frame 33. The movable component 4 includes a translation unit 41, a lifting unit 42 and a first distance sensor 43. The moving direction of the output end of the translation unit 41 is consistent with the length direction of the adjusting frame 33. The grinding component 6 includes a rotating unit 61 and a grinding wheel 62 with a horizontal axis. The rotating unit 61 drives the grinding wheel 62 to rotate around its own axis. The translation unit 41 is mounted on the adjusting frame 33 and is connected to the rotating unit 61 through the lifting unit 42. The first distance sensor 43 is used to detect the moving distance of the grinding component 6.

[0047] In use, the device of this invention places the plate 5 to be deburred on the support member 21. After the support member 21 horizontally supports the plate 5, the positioning units 22 on the four sides of the support member 21 act on the four side walls of the plate 5 from the four sides, so that the plate 5 is centered directly above the support member 21. Then, the adjustment component 3 is activated, and the direction and position of the adjustment frame 33 are adjusted by the steering unit 31, so that the adjustment frame 33 is parallel to one side of the plate 5 and close to the top of that side wall. Then, the telescopic unit 32 is activated, adjusting the adjustment frame 33 relative to the side wall. The position of the vertical surface is determined by the first distance sensor 43, which detects the horizontal movement distance and position of the grinding assembly 6. This ensures that the axis of the grinding wheel 62 in the grinding assembly 6 is perpendicular to the vertical surface where the side wall is located, and that the vertical surface where the side wall is located passes through the circumferential outer edge of the grinding wheel 62. Then, the lifting unit 42 in the movable assembly 4 drives the grinding wheel 62 to descend, so that the grinding wheel 62 contacts the plane where the top surface of the plate 5 is located. At the same time, the translation unit 41 is activated, and the rotation unit 61 drives the grinding wheel 62 to rotate at high speed, so that the grinding wheel 62 passes over the side wall and removes the burrs on the side wall.

[0048] After removing the burrs from one sidewall of the plate 5, the steering unit 31 operates, causing the adjusting frame 33 to rotate horizontally by 90°. Then, the telescopic unit 32 adjusts the horizontal position of the adjusting frame 33, thereby adjusting the horizontal position of the grinding assembly 6 below. This causes the outer circumferential edge of the grinding wheel 62 in the grinding assembly 6 to intersect with the plane of the sidewall of the plate 5 that is perpendicular to the aforementioned sidewall. Then, the rotating unit 61 drives the grinding wheel 62 to rotate, while the translation unit 41 drives the grinding assembly 6 below to move, so that the grinding wheel 62 acts on the other sidewall of the plate 5 to remove the burrs on that sidewall.

[0049] Then, following the above method, the angle and orientation of the adjustment frame 33 are adjusted by the steering unit 31. After each adjustment, the length direction of the adjustment frame 33 is perpendicular to the length direction of the adjustment frame 33 before adjustment. Then, the grinding component 6 is moved on the side wall by the translation unit 41 to remove the burrs on the side wall. In this way, the device can remove all the burrs on the four side walls of one side of the plate 5, expanding the scope of operation. Moreover, when positioning the plate 5, the middle of the plate 5 is first supported by the support member 21 to keep the plate 5 horizontal. Then, a total of eight positioning units 22 clamp the plate 5 from the four sides to achieve horizontal positioning of the plate 5. Compared with positioning by drawing air to form negative pressure through a negative pressure device, the mechanical clamping positioning method from the outside is more energy-efficient.

[0050] In this invention, two positioning units 22 are provided on each side of the plate 5. The length direction of the two positioning units 22 is consistent with that of the corresponding side wall of the plate 5. This is mainly based on the fact that when the grinding component 6 is grinding the side wall of the plate 5, the first distance sensor 43 detects the moving distance of the grinding component 6 to determine its position. When the grinding component 6 is about to touch one of the positioning units 22, the positioning unit 22 removes its positioning operation on the plate 5, leaving space for the grinding component 6 and avoiding contact and wear between the positioning unit 22 and the grinding component 6. After the grinding component 6 passes through the range of motion of the positioning unit 22, the positioning unit 22 resumes its clamping and positioning of the side wall of the plate 5. During the process of the positioning unit 22 removing its clamping and positioning of the plate 5, at least one positioning unit 22 is still acting on the side wall of the plate 5 corresponding to the positioning unit 22, thereby ensuring the positioning and clamping effect of the plate 5 and preventing the plate 5 from shifting during the grinding process, which would affect the deburring effect.

[0051] In this utility model, such as Figures 1-4As shown, the frame 1 includes a horizontal base 11 and a support 12 fixed above the base 11. The base 11 is horizontally fixed to the ground, and the support 12 has an inverted U-shaped structure. Both ends of the support 12 are fixed to the base 11. In the adjustment assembly 3, the steering unit 31 is located below the inner top wall of the support 12. The length direction and width direction of the base 11 are the first direction and the second direction, respectively. A control panel 8 is provided on one of the outer side walls of the support 12. The control panel 8 facilitates the operation of the positioning support assembly 2, the adjustment assembly 3, the movable assembly 4, and the grinding assembly 6, making the deburring of the sheet metal 5 more convenient and faster.

[0052] A further improvement is that the positioning unit 22 includes a side clamping plate 221 and a moving unit 222. The width direction of the side clamping plate 221 is vertical, and the moving unit 222 drives the side clamping plate 221 to move in the horizontal direction. A support plate 223 is fixed on the side clamping plate 221, and the top surface of the support plate 223 and the top surface of the support member 21 are located on the same plane. The side clamping plate 221 slides on the base 11 and the sliding direction is consistent with the direction of the output end of the moving unit 222. The positioning unit 22 also includes a second distance sensor 224 for detecting the moving distance of the side clamping plate 221.

[0053] Specifically, such as Figures 1-4 As shown, in this utility model, the support member 21 is a support platform integrally formed above the center of the base 11. The support platform is a flat cuboid shape, and its length dimension is smaller than the length dimension of the plate 5, and its width dimension is smaller than the width dimension of the plate 5.

[0054] To achieve a more compact structure, each of the four side walls of the support member 21 has two symmetrically arranged receiving recesses 211 distributed along the length of the side wall. Each of the two receiving recesses 211 corresponds to a positioning unit 22 on one side of the support member 21. Specifically, the moving unit 222 is a moving cylinder, with its cylinder barrel fixed inside the receiving recess 211. The piston rod extends outwards and its axis is perpendicular to the side wall where the corresponding receiving recess 211 is located. A horizontal positioning slider 225 is fixedly connected to the piston rod. The positioning slider 225 is elongated and extends along the length of the side wall where the corresponding receiving recess 211 is located. Positioning guide rods 13, which are L-shaped, pass through both ends of the positioning slider 225, with one end fixed to the edge of the base 11. Above, the other end is fixedly connected to the side wall where the receiving notch 211 is located; a side clamp 221 is fixed on the side of the positioning slider 225 facing away from the moving unit 222. The side clamp 221 and the positioning slider 225 are in the same length direction. The horizontal plane where the top surface of the side clamp 221 is located is on the horizontal plane where the top surface of the support member 21 is located. The distance between the two is the thickness of the plate 5. A horizontal support plate 223 is provided directly above the positioning slider 225 and is integrally connected to the side clamp 221. The top surface of the support plate 223 and the top surface of the support member 21 are on the same plane; a second distance sensor 224 is fixed on the side of the side clamp 221 adjacent to the support member 21 and facing the support member 21. The second distance sensor 224 is located between the positioning slider 225 and the support plate 223.

[0055] With the above structure, the sliding cooperation of the positioning slider 225 and the positioning guide rod 13 ensures that the side clamp 221 moves smoothly in the horizontal direction when the moving unit 222 is running. In the positioning state, the support plate 223 can support the edge of the plate 5 and prevent the edge of the plate 5 from being squeezed and deformed. The second distance sensor 224 can detect the distance between the side clamp 221 and the support member 21, so that when positioning the plate 5, the plate 5 is centered directly above the support member 21, avoiding displacement and ensuring the deburring accuracy.

[0056] A further improvement is that the steering unit 31 includes a steering motor 311 and a bogie 312. The steering motor 311 is fixed directly above the base 11. The output end of the steering motor 311 extends downward and is connected to the bogie 312. The telescopic unit 32 is disposed on the bogie 312 and its output end is connected to the adjustment frame 33. The adjustment assembly 3 is also provided with a third distance sensor 34 for detecting the telescopic amount of the telescopic unit 32. The steering motor 311 is a stepper motor with a step angle of 90°.

[0057] Specifically, such as Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the steering unit 31 also includes a steering bearing 313 and a top-opening steering bucket 314. The outer rings of the steering motor 311 and the steering bearing 313 are both fixed to the bottom of the top wall of the bracket 12. The outer ring of the steering bearing 313 is fixedly connected to the steering bucket 314. The output end of the steering motor 311 is sealed through the bottom wall of the steering bucket 314 and fixedly connected to a horizontal bogie 312. With this structure, the steering motor 311 is surrounded and protected by the steering bucket 314, the steering bearing 313, and the top wall of the bracket 12. The steering motor 311 is a stepper motor with a step angle of 90°. In conjunction with the steering bearing 313, the bogie 312 and the adjusting frame 33 rotate 90° every time the steering motor 311 runs, and both are aligned with the length or width direction of the plate 5 in the positioning state.

[0058] The telescopic unit 32 includes an electric push rod 321 and a telescopic guide rod 322. The electric push rod 321 is fixed on the bogie 312, and its output end is fixedly connected to the adjustment frame 33. The telescopic guide rod 322 is fixedly connected to the adjustment frame 33 and slides through the adjustment frame 33 to ensure that the adjustment frame 33 can move smoothly along the axial direction of the telescopic guide rod 322 when the electric push rod 321 moves. A third distance sensor 34 facing the adjustment frame 33 is also fixed on the bogie 312. The third distance sensor 34 detects the moving distance of the adjustment frame 33 to facilitate the determination of the position of the grinding assembly 6, so that the grinding wheel 62 in the grinding assembly 6 is located directly above one of the side walls of the plate 5.

[0059] In the active component 4, the translation unit 41 and the lifting unit 42 are used to drive the grinding component 6 to move horizontally and vertically, respectively.

[0060] like Figure 7 and Figure 8 As shown, the translation unit 41 includes a translation motor 411. A translation screw 412, with the same length direction as the adjusting frame 33, is fixed coaxially to the output end of the translation motor 411. Translation guide rods 417, parallel to the length direction of the translation screw 412, are provided on both sides of the translation screw 412. Support frames 414 are fixed below both ends of the adjusting frame 33. The two ends of the translation guide rods 417 are fixedly connected to the two support frames 414. The translation screw 412 rotates around its own axis between the two support frames 414. The rod 412 is threadedly connected to a translation sleeve 413, which is fixed to the translation frame 415. The translation frame 415 is also fixed with a translation guide sleeve 416 that slides in correspondence with the two translation guide rods 417. The translation frame 415 is connected to the grinding assembly 6 through the lifting unit 42. A first distance sensor 43 facing the translation frame 415 is also fixed on one of the support frames 414 to detect the distance position of the translation frame 415 and thus determine the position of the grinding assembly 6 below.

[0061] After the translation motor 411 is started, it drives the translation screw 412 to rotate under the support of the two support frames 414. It acts on the translation screw sleeve 413. Through the sliding cooperation of the translation guide rod 417 and the translation guide sleeve 416, the translation frame 415 drives the lifting unit 42 and the grinding assembly 6 to move stably along the length direction parallel to the adjustment frame 33.

[0062] A further improvement is that a detection unit 44 is provided between the output end of the lifting unit 42 and the rotating unit 61. The detection unit 44 is used to detect the pressure between the grinding wheel 62 and the plate 5.

[0063] The pressure between the grinding wheel 62 and the plate 5 is detected by the detection unit 44. The height of the rotating unit 61 is adjusted by the lifting unit 42, thereby changing the height position of the grinding wheel 62 and realizing the pressure adjustment between the grinding wheel 62 and the plate 5. This ensures the appropriate pressure between the grinding wheel 62 and the plate 5 during the grinding process, thereby improving the grinding accuracy.

[0064] A further improvement is that the detection unit 44 includes a horizontal detection frame 441, a rotating unit 61 is disposed on the detection frame 441, the detection frame 441 slides vertically on the output end of the lifting unit 42, and the detection frame 441 and the output end of the detection unit 44 are connected by a compression spring 442 and a pressure sensor 443; the lifting unit 42 includes a downwardly fixed lifting motor 421, a lifting screw 422 coaxially connected to the lifting motor 421, and a lifting sleeve 423 threadedly connected to the lifting screw 422, the lifting sleeve 423 is fixedly connected to a lifting plate 424, and the detection frame 441 slides on the lifting plate 424.

[0065] Specifically, such as Figures 9-12 As shown, in the lifting unit 42, the lifting motor 421 is fixed below the translation frame 415, the detection frame 441 is horizontally set, and the upper ends of both ends are fixed with lifting guide rods 444 extending in the vertical direction and slidingly cooperating with the lifting plate 424. The lifting guide rods 444 are provided with limiting protrusions 445 located above the lifting plate 424. The lower end of the translation frame 415 is also fixed with lifting guide tubes 425 that slide and cooperate one-to-one with the lifting guide rods 444. In the detection unit 44, the bottom end of the compression spring 442 is connected to the detection frame 441, and the top end is connected to the lifting plate 424 through the pressure sensor 443.

[0066] With the above structure, the lifting motor 421 starts, driving the lifting screw 422 to rotate and act on the lifting screw sleeve 423. Under the sliding cooperation of the lifting guide rod 444, the lifting guide tube 425 and the lifting plate 424, the lifting plate 424 and the lifting screw sleeve 423 move smoothly in the vertical direction. When the grinding wheel 62 contacts the plate 5, the lifting plate 424 continues to descend, which increases the pressure data received by the pressure sensor 443. By controlling the operation of the lifting unit 42, the grinding component 6 acts on the plate 5 with appropriate pressure, avoiding the adverse effects on the plate 5 caused by excessive or insufficient pressure.

[0067] In this invention, the output end of the rotating unit 61 is detachably connected to the grinding wheel 62. This allows the grinding wheel 62 to be disassembled and dressed after long-term use, maintaining the sharpness of the abrasive grains in the grinding wheel 62, extending the service life of the grinding wheel 62, improving the deburring effect, ensuring processing accuracy, and also facilitating the replacement of the grinding wheel 62.

[0068] A further improvement is that the output end of the lifting unit 42 is connected to a housing 63, and the grinding wheel 62 is detachably rotatable inside the housing 63 with its bottom end protruding from the bottom of the housing 63.

[0069] Specifically, the housing 63 is located on the horizontal plane of the bottom of the grinding wheel 62. This allows the debris generated by the grinding wheel 62 during operation to be concentrated inside the housing 63, preventing debris from splashing to the sides and facilitating the collection and processing of debris particles.

[0070] A further improvement is that the rotating unit 61 includes a rotary motor 611 connected to the output end of the lifting unit 42. The rotary motor 611 is connected to the output end of the lifting unit 42. The output end of the rotary motor 611 is coaxially connected to a drive wheel 612. The drive wheel 612 is connected to a driven wheel 614 via a synchronous belt 613. The driven wheel 614 rotates around its own axis on one side of the housing 63. A synchronous shaft 615 passing through the grinding wheel 62 is detachably connected between the driven wheel 614 and the housing 63. The synchronous shaft 615, the grinding wheel 62, and the driven wheel 614 are coaxial.

[0071] Specifically, such as Figures 9-12 As shown, the rotary motor 611 is fixed below the testing frame 441. After the rotary motor 611 is started, it drives the driving wheel 612 to rotate. The driving wheel 612 acts on the driven wheel 614 through the synchronous belt 613, so that the driven wheel 614 drives the grinding wheel 62 to rotate through the synchronous shaft 615.

[0072] A further improvement is that the synchronous shaft 615 is a round shaft, and a matching groove 616 and a protruding key 617 are provided between the synchronous shaft 615, the driven wheel 614, and the grinding wheel 62. Both the groove 616 and the protruding key 617 extend along the axial direction parallel to the synchronous shaft 615. A tube 64 is provided on the coaxial center line of the driven wheel 614 and the synchronous shaft 615. The grinding wheel 62 is annular, and the protruding key 617 is provided on the inner wall of the tube 64 and the inner wall of the grinding wheel 62. A threaded tube 65 is provided on the side of the housing 63 opposite to the tube 64. The threaded tube 65 is threaded with a bolt 67. A limit frame 66 is attached between the end of the threaded tube 65 opposite to the tube 64 and the cap of the bolt 67. The two ends of the synchronous shaft 615 are attached to the driven wheel 614 and the limit frame 66, respectively.

[0073] Specifically, a grinding bearing 635 is provided between the driven wheel 614 and the housing 63. The outer ring of the grinding bearing 635 is fixedly connected to the housing 63, and the inner ring is fixedly connected to the circumferential outer edge of the insertion tube 64, so as to ensure that the insertion tube 64 and the driven wheel 614 can rotate stably around their own axis relative to the housing 63. The housing 63 is fixedly connected to the detection frame 441 through the fixing bracket 634. Four protruding keys 617 are arranged in a ring array on the circumferential inner wall of the insertion tube 64 and the circumferential inner wall of the grinding wheel 62. The circumferential outer edge of the synchronous shaft 615 is provided with grooves 616 that correspond one-to-one with and fit the four protruding keys 617. In this way, the driven wheel 614 can be synchronously rotated with the grinding wheel 62 through the synchronous shaft 615, and the assembly of the grinding wheel 62 on the housing 63 is convenient.

[0074] During disassembly, after unscrewing bolt 67, remove the limiting bracket 66, and then remove the synchronous shaft 615 from the inside of the grinding wheel 62 and the housing 63. Then, remove the grinding wheel 62 from the inside of the housing 63. When installing the grinding wheel 62, insert the grinding wheel 62 into the housing 63, aligning the protruding key 617 on the grinding wheel 62 with the protruding key 617 on the insertion tube 64. Then, insert the synchronous shaft 615 into the inside of the grinding wheel 62, so that the groove 616 of the synchronous shaft 615 fits onto the protruding key 617. After one end of the synchronous shaft 615 reaches the bottom of the insertion tube 64, place the limiting bracket 66 against the other end of the synchronous shaft 615. Then, insert bolt 67 into the end of the limiting bracket 66 and screw the bolt 67 into the threaded tube 65 to complete the installation of the grinding wheel 62.

[0075] A further improvement is that the limiting bracket 66 is provided with a first positioning tube 661 and a second positioning tube 662. The circumferential inner wall of the first positioning tube 661 and the circumferential inner wall of the second positioning tube 662 respectively fit against the circumferential outer edge of the synchronous shaft 615 and the circumferential outer edge of the threaded tube 65. This design facilitates the installation of the grinding wheel 62 by simultaneously placing the first positioning tube 661 on the end of the synchronous shaft 615 and the second positioning tube 662 on the outside of the threaded tube 65, ensuring assembly accuracy.

[0076] A further improvement is that ball bearings 631 are provided on both sides of the shell 63, which are rotated around their own center and fit against the end face of the grinding wheel 62.

[0077] Specifically, such as Figures 13-15 As shown, mounting holes 633 are provided on the two side walls of the housing 63 facing each other. The mounting holes 633 correspond one-to-one with the balls 631. A mounting block is fixed inside the mounting hole 633. The mounting block is provided with a cavity that is adapted to the balls 631. The mounting block includes two unit blocks 632 facing each other. A notch is provided on the facing surface of the two unit blocks 632. The notches of the two unit blocks 632 are combined to form the cavity of the mounting block.

[0078] The mounting block is formed by fixing two unit blocks 632 together (which can be done by welding). The corresponding recesses of the two unit blocks 632 are connected to form a cavity that matches the ball 631. The mounting block is then fixed to the inner wall of the mounting hole 633. Welding is also preferred as the fixing method. This allows the ball 631 on the mounting block to contact the end face of the grinding wheel 62, limiting the grinding wheel 62 and reducing the axial offset and vibration of the grinding wheel 62 during high-speed rotation. Furthermore, the rotation of the ball 631 around its own axis reduces the friction between it and the grinding wheel 62, ensuring the processing accuracy of the grinding wheel 62 on the plate 5.

[0079] A further improvement is that the present invention also includes a negative pressure component 7, which is used to continuously extract air from the housing 63 when the grinding wheel 62 rotates.

[0080] With the above design, the negative pressure component 7 continuously draws air from the housing 63 as the grinding wheel 62 rotates, causing air to continuously enter the housing 63 and be drawn away, carrying away the heat from the surface of the plate 5 and the grinding wheel 62. This has a certain cooling effect on the plate 5 and the grinding wheel 62, thereby extending the service life of the grinding wheel 62 and reducing the thermal stress deformation of the grinding wheel 62 and the plate 5. At the same time, the continuously flowing air can also carry away the splashed particles inside the housing 63, making it easier to collect and handle them, thereby reducing the workload of workers.

[0081] Further improvements include, for example Figures 16-18 As shown, the negative pressure assembly 7 includes a collection shell 71, a filter element 72, and a negative pressure pump 73. The filter element 72 is detachably installed inside the collection shell 71 and divides the inner cavity of the collection shell 71 into an air inlet chamber and an air outlet chamber. The collection shell 71 is provided with an air inlet 74 and an air outlet 75. The air inlet 74 is connected between the air inlet chamber and the inner cavity of the shell 63, and the air outlet 75 is connected between the air outlet chamber and the input end of the negative pressure pump 73.

[0082] With the above design, while deburring the plate 5, the negative pressure pump 73 is started, which generates a concentrated negative pressure in the collection shell 71. The air inlet chamber in the inner cavity of the collection shell 71 is connected to the inner cavity of the shell cover 63 through the air inlet 74, which generates a negative pressure inside the shell cover 63. The air in the shell cover 63 enters the collection shell 71 through the air inlet 74 and flows out from the air outlet 75. It is then discharged to the outside by the negative pressure pump 73. During the air flow, the heat on the surface of the grinding wheel 62 and the plate 5 is carried away, thereby cooling the plate 5 and the grinding wheel 62. At the same time, the air flow carries the debris generated during grinding into the collection shell 71. The debris is isolated by the filter element 72 to prevent it from entering the air outlet chamber and then entering the negative pressure pump 73. In this way, the stable operation of the negative pressure pump 73 is ensured.

[0083] A further improvement is that the filter element 72 has a barrel-shaped structure with an open top, the air inlet 74 is located on the top of the filter element 72, and the air outlet 75 is located on the outside or below the filter element 72.

[0084] The barrel-shaped structure of the filter element 72 facilitates the centralized collection of debris particles while isolating them. After the equipment has been running for a period of time, the collection shell 71 can be opened to remove the filter element 72 and the collected debris particles. After the debris particles are poured out, the filter element 72 can be installed back into the collection shell 71, which greatly reduces the workload of the workers.

[0085] A further improvement is that the collection shell 71 includes a shell 711 with an open top and a shell cover 712 that can be detachably placed on the shell 711. An inner protruding frame 713 is provided on the inner circumferential wall of the shell 711, and an outer flange 721 is provided on the outer circumferential edge of the top of the filter element 72. The outer circumferential edge of the filter element 72 is sealed and fitted with the inner circumferential wall of the inner protruding frame 713, and the top surface of the inner protruding frame 713 is fitted with the bottom surface of the outer flange 721.

[0086] By sealing the outer edge of the filter element 72 with the inner wall of the inner convex frame 713, the horizontal position of the filter element 72 installed in the housing 711 can be limited, preventing it from shifting in the horizontal direction. The inner convex frame 713 on the inner side of the housing 711 can support the outward flange 721, thereby supporting the filter element 72.

[0087] A further improvement is that the outer flange 721 is sealed between the inner convex frame 713 and the cover 712.

[0088] Specifically, the top surface of the outward flange 721 is provided with a closed-loop, elastic sealing gasket 77, which is a rubber or silicone gasket. Using this structure, the outer flange 721 is erected in the height direction through the cooperation of the cover 712, the sealing gasket 77, and the inner convex frame 713. The height position of the outer flange 721 is limited, thereby fixing the height position of the filter element 72 and preventing displacement of the filter element 72 in the height direction, ensuring that the filter element 72 is firmly installed inside the housing 711. Alternatively, the sealing gasket 77 can be sandwiched between the outer flange 721 and the inner convex frame 713 for a similar effect.

[0089] A further improvement is that the cover 712 and the housing 711 are detachably and fixedly connected by a threaded vertical screw 714 and a nut 715.

[0090] Specifically, each of the four corners of the top of the housing 711 is integrally connected with an axially vertical screw 714, and the vertical screw 714 is threadedly connected with a nut 715. The cover 712 is sandwiched between the nut 715 and the top of the housing 711. In this way, the cover 712 and the housing 711 are detachably connected, which facilitates the assembly of the filter element 72.

[0091] A further improvement is that the collection shell 71 is fixed on the adjustment frame 33, and the air inlet 74 and the shell cover 63 are connected by a hose 76.

[0092] Specifically, the housing 711 is fixed to the upper center of the adjusting frame 33, the negative pressure pump 73 is fixed to one side of the housing 711, and the hose 76 has a certain degree of elasticity, allowing the housing 63 to deform during lifting and lowering. The hose 76 maintains communication between the housing 63 and the air intake chamber. To ensure the amount of deformation of the hose 76, a corrugated hose is preferred. After the housing 711 is fixed to the adjusting frame 33, it is not affected by the translation unit 41, reducing the load on the translation unit 41.

[0093] A further improvement is that the top of the housing 63 is provided with an air extraction port that communicates with its own inner cavity, and the air extraction port is connected to the hose 76; the air inlet 74 is a through hole provided on the housing cover 712, and the air outlet 75 is a through hole provided at the bottom of the housing 711.

[0094] Specifically, the air extraction port is located at the top of the housing 63, and the air extraction port is equipped with an air extraction pipe 636, which is connected to the hose 76; the air inlet 74 and the air outlet 75 are coaxial, and their axis passes through the bottom of the filter element 72.

[0095] With the above design, the air inside the housing 63 is discharged from the top air extraction port, passes through the air extraction pipe 636 and the hose 76, and then enters the air intake chamber downwards from the air inlet 74 on the housing cover 712. The air inlet 74 is directly opposite the bottom of the filter element 72, allowing the air-carried debris to enter the filter element 72. After accumulating inside the filter element 72, the air is discharged from the four sides of the filter element 72, flows downwards, and then is discharged from the air outlet 75. Because the debris particles accumulate at the bottom of the filter element 72, the four sides of the filter element 72 can still maintain the connection between the air intake chamber and the air outlet chamber. In this way, it is convenient for the air to carry debris particles into the housing 711. While the debris particles accumulate inside the filter element 72, the air can be discharged from the collection housing 71.

[0096] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-precision deburring device for elevator door panels, characterized in that, include: The frame (1) includes a base (11); The positioning support assembly (2) includes a support member (21) disposed on the base (11) to support the plate (5). At least two positioning units (22) are provided on each of the four sides of the support member (21). The positioning units (22) on the two sides are distributed along the first direction, and the positioning units (22) on the other two sides are distributed along the second direction. The first direction and the second direction are both horizontal and perpendicular to each other. The positioning units (22) cooperate with each other to clamp the plate (5) from the four sides and adjust the plate (5) to the first direction and the second direction in the length direction and the second direction in the width direction, respectively. Adjustment component (3), the adjustment component (3) is located directly above the positioning support component (2), the adjustment component (3) includes a steering unit (31), a telescopic unit (32) and an adjustment frame (33), the adjustment frame (33) is long and narrow, the steering unit (31) is driven to connect with the adjustment frame (33) through the telescopic unit (32) so as to rotate the adjustment frame (33) sequentially to correspond to the positioning units (22) on the four sides of the support (21) and to be in the same length direction as the distribution direction of the positioning units (22); The movable component (4) and the grinding component (6) are mounted on the adjustment frame (33). The movable component (4) includes a translation unit (41), a lifting unit (42) and a first distance sensor (43). The moving direction of the output end of the translation unit (41) is consistent with the length direction of the adjustment frame (33). The grinding component (6) includes a rotating unit (61) and a grinding wheel (62) with a horizontal axis and detachably connected to the output end of the rotating unit (61). The rotating unit (61) drives the grinding wheel (62) to rotate around its own axis. The translation unit (41) is mounted on the adjustment frame (33) and is connected to the rotating unit (61) through the lifting unit (42). The first distance sensor (43) is used to detect the moving distance of the grinding component (6).

2. The high-precision elevator door panel deburring device according to claim 1, characterized in that: The output end of the lifting unit (42) is connected to a housing (63), and the grinding wheel (62) is detachably rotatable inside the housing (63) with its bottom end protruding from the bottom of the housing (63).

3. The high-precision elevator door panel deburring device according to claim 2, characterized in that: The rotating unit (61) includes a rotary motor (611) connected to the output end of the lifting unit (42). The rotary motor (611) is connected to the output end of the lifting unit (42). The output end of the rotary motor (611) is coaxially connected to a drive wheel (612). The drive wheel (612) is connected to a driven wheel (614) via a synchronous belt (613). The driven wheel (614) rotates around its own axis on one side of the housing (63). A synchronous shaft (615) passing through the grinding wheel (62) is detachably connected between the driven wheel (614) and the housing (63). The synchronous shaft (615), the grinding wheel (62), and the driven wheel (614) are coaxial.

4. The deburring device for high-precision elevator door panels according to claim 3, characterized in that: The synchronous shaft (615) is a round shaft. The synchronous shaft (615) is provided with a matching groove (616) and a convex key (617) between it, the driven wheel (614), and the grinding wheel (62). The groove (616) and the convex key (617) both extend along an axial direction parallel to the synchronous shaft (615).

5. The high-precision elevator door panel deburring device according to claim 4, characterized in that: The driven wheel (614) is coaxially arranged with a tube (64) at one end adjacent to the synchronous shaft (615). The grinding wheel (62) is annular, and the protruding key (617) is disposed on the inner wall of the tube (64) and the inner wall of the grinding wheel (62).

6. The deburring device for high-precision elevator door panels according to claim 5, characterized in that: The housing (63) has a screw tube (65) on the side opposite to the insertion tube (64). The screw tube (65) is threaded with a bolt (67). A limit bracket (66) is attached between the end of the screw tube (65) opposite to the insertion tube (64) and the cap of the bolt (67). The two ends of the synchronous shaft (615) are attached to the driven wheel (614) and the limit bracket (66) respectively.

7. The deburring device for high-precision elevator door panels according to claim 6, characterized in that: The limiting frame (66) is provided with a first positioning tube (661) and a second positioning tube (662). The circumferential inner wall of the first positioning tube (661) and the circumferential inner wall of the second positioning tube (662) are respectively attached to the circumferential outer edge of the synchronous shaft (615) and the circumferential outer edge of the solenoid (65).

8. The deburring device for high-precision elevator door panels according to claim 2, characterized in that: Ball bearings (631) are provided on both sides of the shell (63) facing each other. The ball bearings (631) are arranged to rotate around their own center and are in contact with the end face of the grinding wheel (62).

9. The high-precision elevator door panel deburring device according to claim 8, characterized in that: Mounting holes (633) are provided on the two side walls facing the housing (63). The mounting holes (633) correspond one-to-one with the ball (631). A mounting block is fixed inside the mounting hole (633). A cavity adapted to the ball (631) is provided on the mounting block.

10. The deburring device for high-precision elevator door panels according to claim 9, characterized in that: The mounting block includes two opposing unit blocks (632), each of which has a notch on its opposite surface. The notches of the two unit blocks (632) are combined to form the cavity of the mounting block.

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