Office furniture plate corner rounding device

Abstract

The utility model discloses an office furniture board edge corner rounding processing device, especially relates to the field of board processing, including support frame, the support frame top is equipped with support platform, the support platform top middle is equipped with the placement platform, the both sides of support platform top are equipped with the guide rail, two the guide rail top is equipped with the rounding device, two the rounding device top is equipped with the mounting bracket, two the mounting bracket in is equipped with the motor, the both sides of support frame bottom are equipped with the collecting groove, the rounding device left and right sides are equipped with rubber wheel. The utility model discloses a kind of office furniture board edge corner rounding processing device support and be equipped with guide rail, so that rounding angle can be adjusted according to different length of board, and then realize rounding angle to different board, device is set by setting limit board and mounting groove two, can effectively limit board in processing, avoid board displacement due to vibration or stress.

Description

Technical Field

[0001] This utility model relates to the field of rounding the edges and corners of office furniture panels, and in particular to a device for rounding the edges and corners of office furniture panels. Background Technology

[0002] The office furniture board edge rounding processing device is a special equipment that uses milling, grinding and other mechanical processing methods to process the right angles or sharp edges of office furniture boards (such as office desk panels, filing cabinet side panels, conference table edges, etc.) into rounded corners.

[0003] In office furniture production, the rounding of board edges is not a simple "process addition," but a core aspect that directly affects product quality and user experience: from a safety perspective, rounded corners can prevent users from being scratched or bumped by sharp edges during use; from an aesthetic perspective, rounded corners can make the furniture lines softer and enhance the overall design; from an ergonomic perspective, rounded corners are more in line with human contact habits, and are especially suitable for frequently used office scenarios.

[0004] Chinese Patent Publication No. CN206475001 U discloses a sheet metal chamfering device, including a frame, a worktable, a guide rod, a grinding wheel, a first motor, and a second motor. The worktable and guide rod are both fixed to the frame, with the guide rod positioned above the worktable. A slider that moves along the guide rod is mounted on the guide rod and is fixed to a connecting plate. Two cylinders are arranged opposite each other on the connecting plate, and the piston rods of the cylinders are connected to the first motor. The grinding wheel is mounted on the output shaft of the first motor. The second motor is fixed to the frame, and its output shaft is connected to a lead screw. The lead screw mates with a nut, which is fixed to the connecting plate. This sheet metal chamfering device simultaneously chamfers and grinds opposite sides of the sheet metal, and then chamfers and grinds the other two sides after changing direction, resulting in smooth, non-rough edges on the sheet metal.

[0005] The above-mentioned documents still have the following shortcomings in implementation:

[0006] Although the board chamfering device described in the above-mentioned literature can chamfer boards, it can only chamfer boards with a fixed length and width, and its applicable range is very small. In addition, the board chamfering device described in the above-mentioned literature does not have a fixed board structure. The board will move during the chamfering process, which will generate scrap, reduce product quality, waste board and increase costs. Utility Model Content

[0007] The main purpose of this utility model is to provide a device for rounding the edges and corners of office furniture boards, which can effectively solve the problems mentioned above.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A device for rounding the edges of office furniture boards includes a support frame. A horizontal support platform is located at the top of the support frame. A placement platform is fixedly installed at the center of the top of the support platform to support the boards. The upper surface of the placement platform is flush with the upper surface of the support platform. Guide rails are located on both sides of the top of the support platform. Rounding devices that can move along the length of the guide rails are slidably connected to the top of each guide rail. The two rounding devices are symmetrically distributed. Mounting frames are bolted to the top of each rounding device near the placement platform. A motor with a vertically downward-facing output shaft is fixedly installed inside each mounting frame. Collection grooves are located on both sides of the bottom of the support frame. Rubber wheels are connected to the left and right sides of each rounding device near the bottom via rotating shafts. The lowest point of each rubber wheel is lower than the bottom surface of the rounding device.

[0010] Preferably, the top two sides of the support platform are provided with material drop grooves inside the guide rails. The upper edge of the material drop groove is flush with the upper surface of the support platform, and the lower end is connected to the collection groove below through a pipe.

[0011] Preferably, the bottom end of the output shaft of the motor is fixedly connected to a straight transmission roller via a coupling, and the bottom of the transmission roller is fixedly connected to a rounded end mill via a flange. The axis of the rounded end mill coincides with the axis of the transmission roller, and the cutting edge of the rounded end mill faces downward.

[0012] Preferably, each of the two rounding devices has a second mounting hole on its top side away from the placement platform. The second mounting hole is fitted with a pin for fixing the position of the rounding device. The pin is interference-fitted with the second mounting hole, and the bottom of the pin can abut against the top surface of the guide rail. Two limiting plates perpendicular to the placement platform are symmetrically fixed on both sides of the top center of the two rounding devices. The top of the two limiting plates near the motor side has a through mounting hole one. The middle of the two limiting plates near the motor side has a mounting groove one, which is a rectangular through groove. The four corners of the right side of the top of the rounding device have three mounting holes three, and the inner wall of the three mounting holes three is provided with internal threads.

[0013] Preferably, the diameter of the rubber wheel is wider than the width of the limiting plate, so that the rubber wheel can extend out of the limiting plate and contact the required rounded plate.

[0014] Preferably, a second mounting groove is formed between the two limiting plates, which runs horizontally through the middle. The second mounting groove is used to replace the fillet milling cutter.

[0015] Preferably, the mounting bracket has an inverted U-shaped structure, with four through mounting holes at the four corners of its upright plate. The positions of the four mounting holes correspond one-to-one with the positions of the three mounting holes at the top of the rounded device, and bolts that mate with the three mounting holes are inserted inside the four mounting holes. A mounting hole five for mounting a motor is provided at the middle of the bottom of the mounting bracket. The diameter of the mounting hole five is adapted to the diameter of the bottom of the motor, and a positioning pin for fixing the motor is provided on the inner wall of the mounting hole five.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The office furniture board edge rounding processing device of this utility model is equipped with a guide rail, which allows the rounding to be adjusted according to the board of different lengths, thereby achieving the purpose of rounding the edges of different boards.

[0018] 2. The device, by incorporating a limiting plate and mounting groove II, effectively limits the movement of the sheet metal during processing, preventing displacement due to vibration or stress. Simultaneously, the rubber wheels on both sides of the rounding device contact the sheet metal before the fillet milling cutter, aiding in smooth sheet metal transport and further enhancing positioning stability. This design significantly reduces processing deviations caused by sheet metal movement, decreases scrap rates, improves product quality, and reduces raw material waste costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the installation positions of the support platform and the material discharge chute of this utility model;

[0021] Figure 3 This is a schematic diagram of the assembly structure of the motor, transmission roller and fillet milling cutter of this utility model;

[0022] Figure 4 This is a schematic diagram from another perspective of the assembly structure of the motor, transmission roller and fillet milling cutter of this utility model;

[0023] Figure 5 This is a schematic diagram of the overall structure of the rounding device of this utility model;

[0024] Figure 6 This is a schematic diagram of the overall structure of the rounding device of this utility model from another perspective;

[0025] Figure 7 This is a schematic diagram of the overall structure of the mounting bracket of this utility model.

[0026] In the diagram: 1. Placement platform; 2. Support frame; 3. Support platform; 31. Material drop chute; 4. Collection chute; 5. Guide rail; 6. Rounding device; 61. Mounting hole one; 62. Mounting hole two; 63. Mounting slot one; 64. Mounting hole three; 65. Limiting plate; 66. Mounting slot two; 67. Pin shaft; 7. Motor; 71. Transmission roller; 72. Rounded corner milling cutter; 8. Mounting frame; 81. Mounting hole four; 82. Mounting hole five; 9. Rubber wheel. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] Example 1, as Figure 1 As shown, an office furniture board edge rounding processing device includes a support frame 2, a horizontal support platform 3 at the top of the support frame 2, a placement platform 1 fixedly installed at the top center of the support platform 3, the placement platform 1 being used to support the board, the upper surface of the placement platform 1 being flush with the upper surface of the support platform 3, guide rails 5 being provided at the center of both sides of the top of the support platform 3, and rounding devices 6 slidably connected to the top of each of the two guide rails 5, which can move along the length of the guide rails 5, the two rounding devices 6 being symmetrically distributed, and mounting frames 8 being fixedly connected to the top of each of the two rounding devices 6 near the placement platform 1 by bolts, and motors 7 with vertically downward output shafts fixedly installed in each of the two mounting frames 8, collection grooves 4 being provided on both sides of the bottom of the support frame 2, and rubber wheels 9 being connected to the left and right sides of the rounding devices 6 near the bottom by rotating shafts, the lowest point of the rubber wheels 9 being lower than the bottom surface of the rounding devices 6.

[0029] During operation, the sheet material to be processed is first placed on the placement platform 1. Based on the sheet material's dimensions, the distance between the two rounding devices 6 is adjusted via the guide rail 5, ensuring that the processing components mounted on the rounding devices 6 are accurately aligned with the edges of the sheet material requiring rounding. At this point, the rubber wheel 9 must contact the sheet material before the rounding device 6. The rubber wheel 9 is connected to the motor 7 via a belt, so that the rubber wheel 9 rotates when the motor 7 rotates. After adjusting the position of the rounding devices 6, the motor 7 is started, driving the relevant processing components to round the edges of the sheet material. During processing, waste material falls and eventually collects in the collection troughs 4 on both sides of the bottom of the support frame 2. After processing is complete, the motor 7 is turned off, and the processed sheet material is removed.

[0030] Example 2: This example optimizes the rounding device 6 based on Example 1 to achieve the purpose of rounding the corners of the board.

[0031] Specifically, to achieve the above objectives, please refer to Figure 2 - Figure 7 In this embodiment, both rounding devices 6 have mounting holes 2 62 on the top side away from the placement platform 1. The mounting holes 2 62 are fitted with pins 67 for fixing the position of the rounding devices 6. The pins 67 and the mounting holes 2 62 are interference-fitted, and the bottom of the pins 67 can abut against the top surface of the guide rail 5. Two limiting plates 65 perpendicular to the placement platform 1 are symmetrically fixed on both sides of the top of the two rounding devices 6. The top of the two limiting plates 65 near the motor 7 has mounting holes 1 61 that go through vertically. The middle of the side of the two limiting plates 65 near the motor 7 has mounting grooves 1 63. The mounting grooves 1 63 are rectangular through grooves. The four corners of the right side of the top of the rounding device 6 have mounting holes 3 64. The inner wall of the mounting holes 3 64 is provided with internal threads.

[0032] The top two sides of the support platform 3 are provided with material drop troughs 31 located inside the guide rail 5. The upper edge of the material drop trough 31 is flush with the upper surface of the support platform 3, and the lower end is connected to the collection trough 4 below through a pipe.

[0033] The support platform 3 has material drop troughs 31 on both sides of its top, and the support frame 2 has collection troughs 4 on both sides of its bottom. During the processing, the waste material generated by the rounded end mill 72 will fall into the material drop troughs 31 and be guided into the collection troughs 4 below for centralized collection, so as to avoid the waste material from scattering and polluting the environment.

[0034] A straight transmission roller 71 is fixedly connected to the bottom of the output shaft of the motor 7 via a coupling. A rounded end mill 72 is fixedly connected to the bottom of the transmission roller 71 via a flange. The axis of the rounded end mill 72 coincides with the axis of the transmission roller 71, and the cutting edge of the rounded end mill 72 faces downward.

[0035] The diameter of the rubber wheel 9 is wider than the width of the limiting plate 65, so that the rubber wheel 9 can extend out of the limiting plate 65 and contact the plate to be rounded, so that the rubber wheel 9 can drive the plate to be rounded to move forward.

[0036] The two limiting plates 65 have a horizontally penetrating mounting groove 66 between them, which is used to replace the fillet end mill 72.

[0037] The mounting bracket 8 has an inverted U-shaped structure. Each of its four corners has a through mounting hole 81. The position of the mounting hole 81 corresponds to the position of the mounting hole 64 on the top of the rounded device 6. The mounting hole 81 is fitted with a bolt that matches the mounting hole 64. The bottom of the mounting bracket 8 has a mounting hole 82 for mounting the motor 7. The diameter of the mounting hole 82 matches the diameter of the bottom of the motor 7. The inner wall of the mounting hole 82 is provided with a positioning pin for fixing the motor 7.

[0038] During operation, the distance between the two rounding devices 6 is adjusted via the guide rail 5 according to the width of the material to be processed: loosen the fasteners in the mounting holes 62, push the rounding device 6 along the guide rail 5 until the distance between the two fillet milling cutters 72 matches the width of the material, and then re-tighten the fasteners to fix the position. The rubber wheel 9 moves synchronously with the rounding device 6 to reduce friction and vibration during movement and ensure a smooth adjustment process.

[0039] The fillet cutters used for rounding are generally high-speed steel saw blade cutters, typically ranging from YG8 to YG15. The number after YG indicates the cobalt content (e.g., YG8 contains 8% cobalt, and YG15 contains 15% cobalt). In woodworking, different cobalt contents are selected based on the required hardness and wear resistance: YG8: lower cobalt content, strong impact resistance, suitable for softer woods; YG15: higher cobalt content, higher bending strength, suitable for hardwoods or high-strength boards.

[0040] High-speed steel saw blade end mills are commonly made of materials including HSS-CO cobalt-containing high-speed steel and W6Mo5Cr4V2 (commonly known as 6542), which are processed by forging, vacuum heat treatment and titanium plating, and have high hardness and wear resistance.

[0041] Both rounding devices 6 are equipped with mounting brackets 8 at their top. Each mounting bracket 8 has mounting holes 81 at its four corners and mounting holes 82 at its bottom. By engaging the mounting holes 81 with the mounting holes 64 at the four right corners of the top of the rounding device 6, the mounting bracket 8 can be securely installed on the rounding device 6. Each mounting bracket 8 contains a motor 7. The bottom of each motor 7 has a drive roller 71, and the bottom of the drive roller 71 has a rounding cutter 72. The motor 7 drives the drive roller 71 to rotate, which in turn drives the rounding cutter 72 to rotate at high speed, thus achieving the rounding of the edges and corners of the sheet metal.

[0042] Both the top of the rubber wheel 9 and the bottom of the transmission roller 71 are equipped with pulleys. The two pulleys are connected by a belt, and both the belt and the pulleys have protective shells to prevent wear of the pulleys and belts due to dust and debris, which could lead to failure of the transmission structure.

[0043] Furthermore, the diameter of the shaft of the rubber wheel 9 is larger than that of the transmission roller 71, thereby making the rotation speed of the rubber wheel 9 slower than that of the transmission roller 71.

[0044] By engaging mounting hole 81 with mounting hole 64 on top of rounding device 6, mounting bracket 8 is fixed with fasteners to ensure that motor 7 runs without shaking; at the same time, transmission roller 71 at the bottom of motor 7 and rounded end mill 72 must be precisely aligned to avoid deviation during processing.

[0045] The motor 7 is started, driving the transmission roller 71 to rotate at high speed, which in turn drives the rounded end mill 72 to rotate, pushing the plate along the limiting plate 65 towards the rounded end mill 72. The rounded end mill 72 mills the edges and corners of the plate, cutting right angles or sharp edges and corners into rounded corners of a preset radius. During the processing, the limiting plate 65 continuously restricts the displacement of the plate to ensure a stable milling trajectory.

[0046] The rounding device 6 has rubber wheels 9 on both sides. The rubber wheels 9 must contact the plate first before the rounding cutter 72. Only then will the rubber wheels 9 drive the plate to move forward and the plate will move smoothly.

[0047] The rubber wheel 9 is connected by a rotating shaft, and the top and bottom of the rotating shaft are connected to the mounting hole 61 by bearings to ensure that the rotating shaft can rotate stably.

[0048] To replace the fillet end mill 72, first turn off the motor 7. After the fillet end mill 72 has completely stopped rotating, remove the original tool and take it out of the mounting slot 66. Remove the fillet end mill 72 that is fixed by the flange, replace it with a new fillet end mill 72, and then reinstall it.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for rounding the edges and corners of office furniture boards, comprising a support frame (2), characterized in that: The support frame (2) has a horizontal support platform (3) on top. A placement platform (1) is fixedly installed in the middle of the top of the support platform (3). The placement platform (1) is used to support the plate. The upper surface of the placement platform (1) is flush with the upper surface of the support platform (3). The support platform (3) has guide rails (5) in the middle of the top two sides. The top of the two guide rails (5) is slidably connected to rounding devices (6) that can move along the length of the guide rails (5). The two rounding devices (6) are symmetrically distributed. The top of the two rounding devices (6) near the placement platform (1) is fixedly connected to mounting brackets (8) by bolts. The two mounting brackets (8) are fixedly installed with motors (7) with vertically downward output shafts. The support frame (2) has collection grooves (4) on both sides of the bottom. The rounding devices (6) are connected to rubber wheels (9) near the bottom on the left and right sides by rotating shafts. The lowest point of the rubber wheels (9) is lower than the bottom surface of the rounding devices (6).

2. The office furniture board edge rounding processing device according to claim 1, characterized in that: The support platform (3) has material drop troughs (31) on both sides of the top, inside the guide rail (5). The upper edge of the material drop trough (31) is flush with the upper surface of the support platform (3), and the lower end is connected to the collection trough (4) below through a pipe.

3. The office furniture board edge rounding processing device according to claim 1, characterized in that: The bottom of the output shaft of the motor (7) is fixedly connected to a straight transmission roller (71) via a coupling. The bottom of the transmission roller (71) is fixedly connected to a rounded end mill (72) via a flange. The axis of the rounded end mill (72) coincides with the axis of the transmission roller (71), and the cutting edge of the rounded end mill (72) faces downward.

4. The office furniture board edge rounding processing device according to claim 1, characterized in that: The top of each of the two rounding devices (6) away from the placement platform (1) has a second mounting hole (62). The second mounting hole (62) is fitted with a pin (67) for fixing the position of the rounding device (6). The pin (67) and the second mounting hole (62) are interference fit, and the bottom of the pin (67) can abut against the top surface of the guide rail (5). The top of the two rounding devices (6) is symmetrically fixed with two limiting plates (65) perpendicular to the placement platform (1) on both sides. The top of the two limiting plates (65) near the motor (7) has a through mounting hole (61) that runs vertically through. The middle of the side of the two limiting plates (65) near the motor (7) has a mounting groove (63) that is rectangular through groove. The top right corner of the rounding device (6) has a third mounting hole (64) that is threaded inside.

5. The office furniture board edge rounding processing device according to claim 4, characterized in that: The diameter of the rubber wheel (9) is wider than the width of the limiting plate (65) so that the rubber wheel (9) can extend out of the limiting plate (65) and contact the required rounded plate.

6. The office furniture board edge rounding processing device according to claim 4, characterized in that: A horizontally penetrating mounting groove (66) is provided between the two limiting plates (65), and the mounting groove (66) is used to replace the fillet milling cutter (72).

7. The office furniture board edge rounding processing device according to claim 1, characterized in that: The mounting bracket (8) has an inverted U-shaped structure. The four corners of its vertical part are provided with mounting holes four (81) that run vertically through the top and bottom. The position of the mounting holes four (81) corresponds one-to-one with the position of the mounting holes three (64) on the top of the rounded device (6). The mounting holes four (81) are provided with bolts that cooperate with the mounting holes three (64). The mounting bracket (8) has a mounting hole five (82) for mounting the motor (7) in the middle of the bottom. The diameter of the mounting hole five (82) is adapted to the diameter of the bottom of the motor (7). The inner wall of the mounting hole five (82) is provided with a positioning pin for fixing the motor (7).

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