Milling equipment for building model machining

Abstract

The invention belongs to the technical field of milling equipment, and particularly relates to milling equipment for building model machining, which comprises a rack, a lifting assembly is mounted at the top end of the rack, a milling cutter driving box is mounted on the lifting assembly, a translation assembly and a clamping assembly are mounted at the bottom end of the rack, and an execution mechanism is arranged below the milling cutter driving box. The executing mechanism comprises an air injection plate, an air inlet of the air injection plate is connected with a hose, the hose is connected with an air pump, and the button is electrically connected with the air pump and connected with a triggering structure; according to the milling machine, generated chippings can be blown and swept in time in the milling process through the executing mechanism. When the milling cutter descends to mill a wood plate, the trigger structure presses the button, the air pump works to convey air to the air injection plate, and scraps are blown away from a machining area in time, when the milling cutter is far away from the wood plate, the trigger structure cancels pressing on the button, the blowing action is stopped, the influence of scrap accumulation on the milling precision is effectively avoided, and the machining quality of a building model is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of milling equipment, and in particular to a milling equipment for processing building models. Background Art

[0002] In the field of building model processing, if the model needs to display fine three-dimensional structures (such as complex decorative components, mechanical parts or miniature landscapes), milling (CNC machining) can achieve sub-millimeter accuracy and is suitable for hard materials such as metals, hardwoods or engineering plastics. Milling equipment is a commonly used tool for fine processing of these materials.

[0003] Taking a hard wooden board as an example, during the working process of traditional milling equipment, the chips generated by milling often accumulate in the processing area. On the one hand, the accumulation of chips will affect the normal cutting of the milling cutter, reduce the milling accuracy, and make it difficult to guarantee the processing quality of the building model. For example, the chips may be embedded between the milling cutter and the wooden board, interfering with the rotation trajectory of the milling cutter, resulting in defects or dimensional deviations at the edges of the model. On the other hand, a large amount of accumulated chips may also affect the heat dissipation of the equipment, shorten the service life of the equipment, and increase the equipment maintenance cost. Traditional equipment usually does not have an effective chip blowing mechanism, or even if there is a blowing device, it cannot be adjusted according to the actual processing conditions, resulting in high energy consumption. For example, some blowing devices work continuously throughout the operation of the equipment, causing unnecessary energy waste. Summary of the Invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a milling equipment for processing building models.

[0005] A milling equipment for processing building models proposed by the present invention includes a frame. An elevating assembly is installed at the top of the frame, and a milling cutter drive box is installed on the elevating assembly. A translation assembly and a clamping assembly are installed at the bottom of the frame. An actuating mechanism is arranged below the milling cutter drive box. The actuating mechanism includes a jet plate. The air inlet of the jet plate is connected to a hose, and the hose is connected to an air pump. The air pump is fixed on the side of the frame. It also includes a button electrically connected to the air pump, and the button is connected to a triggering structure. When the hard wooden board to be milled is installed on the clamping assembly, the elevating assembly, the translation assembly and the milling cutter drive box will mill the wooden board according to the program set by the system. When the milling cutter descends with the elevating assembly to mill the wooden board, the triggering structure will continuously press the button, and then the air pump will be powered on and send air to the jet plate through the hose, and the air will be blown towards the direction of the milling cutter, so as to timely blow the chips generated during the milling process. When the milling cutter moves away from the wooden board with the elevating assembly, the triggering structure will cancel the pressing of the button, and at this time the blowing action will stop, thereby reducing energy consumption.

[0006] Preferably, the lifting assembly includes a first slide rail fixedly connected to the frame. A first motor is fixedly connected to the top end of the first slide rail. The output shaft of the first motor is connected to a first screw rod. A first slider that is threadedly connected to the first screw rod and slidably connected to the first slide rail through a pair of guide columns is fixedly connected to the milling cutter drive box. By driving the first screw rod to rotate through the output shaft of the first motor, the first slider can be driven to move up and down by the first screw rod, so as to drive the milling cutter to move in the up and down direction.

[0007] Preferably, the triggering structure includes a pressing piece, a spring and a collar that are sleeved on one of the guide columns and located below the first slider. The two ends of the spring are respectively fixedly connected to the pressing piece and the collar. The pressing piece is slidably connected to the guide column and presses on the button. The button is fixedly connected to the first slide rail. When the bottom end of the milling cutter just touches the surface of the wooden board, the first slider just touches the collar. At different milling depths, the collar will continuously be squeezed by the first slider, and then the collar squeezes the pressing piece through the spring, and the pressing piece presses down the button, so as to ensure that the button can be pressed down at different milling depths.

[0008] Preferably, a fixed seat is fixedly connected to the bottom of the first slide rail. The air jet plate is rotatably connected to the fixed seat through a torsion spring. A push bar is fixedly connected to the side of the first slider. A plurality of flanges that are distributed up and down and can contact the air jet plate are arranged on the front end surface of the push bar. As the first slider moves up and down, the push bar will be driven to move synchronously. The push bar will push the air jet plate through the upper flanges, so that the air jet plate rotates, so that the air jet range is enlarged, so as to improve the purging effect on the debris.

[0009] Preferably, the translation assembly includes a second slide rail fixedly connected to the frame. A second motor is fixedly connected to one end of the second slide rail. The output shaft of the second motor is connected to a second screw rod. A second slider that is threadedly connected to the second screw rod and slidably connected to the second slide rail is installed on the second slider. The clamping assembly is installed on the second slider. By driving the second screw rod to rotate through the output shaft of the second motor, and then the second screw rod drives the second slider to move, the clamping assembly and the wooden board can be synchronously driven to translate by the second slider.

[0010] Preferably, the clamping assembly includes a third slide rail fixedly connected to the top of the second slider. A third motor is fixedly connected to one end of the third slide rail. The output shaft of the third motor is connected to a third screw rod. A third slider that is threadedly connected to the third screw rod and slidably connected to the third slide rail is fixedly connected to the other end of the third slide rail away from the third motor. A backing plate is fixedly connected to the top of the third slide rail. The wooden board is placed between the third slider and the backing plate, and then the output shaft of the third motor drives the third screw rod to rotate. The third screw rod will drive the third slider to approach the backing plate, so as to clamp the wooden board by the third slider and the backing plate.

[0011] Preferably, it further includes a debris accumulation amount acquisition module, an air flow velocity acquisition module, and a control module. The debris accumulation amount acquisition module is used to acquire the debris density parameter in real time, and the air flow velocity acquisition module is used to acquire the air flow efficiency parameter in real time. The control module receives the data acquired by the debris accumulation amount acquisition module and the air flow velocity acquisition module in real time, conducts comprehensive analysis, then generates an evaluation coefficient, compares the evaluation coefficient with a preset evaluation coefficient reference threshold, determines whether the amount of debris on the wooden board surface is within a reasonable range, and controls the working state of the actuator according to the comparison result. If the amount of debris on the wooden board surface is not within a reasonable range, the actuator will automatically adjust the purging state.

[0012] Preferably, the control module is installed on the first slide rail. The debris accumulation amount acquisition module is installed at the bottom of the milling cutter drive box and on the side of the milling cutter. The air flow velocity acquisition module is installed on the air jet plate and kept parallel to the air duct. In this way, it is possible to better acquire the debris density parameter in real time through the debris accumulation amount acquisition module and better acquire the air flow efficiency parameter in real time through the air flow velocity acquisition module.

[0013] Preferably, the control logic of the control module for the working state of the actuator is as follows:

[0014] Data acquisition: Acquire the debris density parameter S through the debris accumulation amount acquisition module and acquire the air flow efficiency parameter V through the air flow velocity acquisition module.

[0015] Evaluation coefficient calculation: Generate an evaluation coefficient for quantifying the purging requirement.

[0016] Action decision: Dynamically adjust the air pressure intensity P of the air jet plate according to the threshold range of K.

[0017] Feedback optimization: Monitor the purging effect in real time and correct the parameter weights α and β through the PID algorithm.

[0018] Preferably, the calculation formula of the evaluation coefficient is:

[0019] K = α·S + β·(1 - V)

[0020] In the formula, α, β: weight coefficients, 1 - V: a reverse index reflecting insufficient air flow.

[0021] Compared with the prior art, the present invention provides a milling device for building model processing, having the following beneficial effects:

[0022] 1. A milling device for building model processing can timely blow away the generated debris during the milling process through an actuator. When the milling cutter descends to mill the wooden board, the triggering structure presses the button, and the air pump works to supply air to the jet plate, blowing the debris away from the processing area in time. When the milling cutter moves away from the wooden board, the triggering structure cancels the pressing of the button, and the blowing action stops, effectively avoiding the influence of debris accumulation on the milling accuracy and ensuring the processing quality of the building model.

[0023] 2. A milling device for building model processing. The design of the pressing piece, spring and collar in the triggering structure can ensure that the button is always pressed down according to different milling depths, enabling the air pump to work properly at different milling depths and achieving good adaptability to different processing requirements.

[0024] 3. A milling device for building model processing. The cooperative design of the push bar and the jet plate. As the slider one moves, the push bar squeezes the jet plate through the flange to make it rotate, expanding the jet range, further improving the blowing effect on the debris and ensuring the cleanliness of the processing area.

[0025] 4. A milling device for building model processing. The device is equipped with a debris accumulation amount acquisition module, an air flow velocity acquisition module and a control module, which can collect data in real time and conduct comprehensive analysis, and automatically adjust the blowing state of the actuator according to the actual situation of the debris amount on the wooden board surface, realizing intelligent and precise blowing control, and improving the overall performance and processing efficiency of the device. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of a milling device for building model processing proposed by the present invention;

[0027] Figure 2 It is a schematic diagram of the installation structure of the milling cutter drive box of a milling device for building model processing proposed by the present invention;

[0028] Figure 3 It is a schematic diagram of the side structure of the slide rail one of a milling device for building model processing proposed by the present invention;

[0029] Figure 4 It is a schematic diagram of the disassembly of the pressing piece and the guide post of a milling device for building model processing proposed by the present invention;

[0030] Figure 5 It is a schematic diagram of the installation structure between the translation component and the clamping component of a milling device for building model processing proposed by the present invention;

[0031] Figure 6 It is a schematic diagram of the principle of a milling device for building model processing proposed by the present invention.

[0032] In the figure: 1, frame; 2, milling cutter drive box; 3, chip accumulation amount acquisition module; 4, air pump; 5, hose; 6, jet plate; 7, slide rail 1; 8, slider 1; 9, screw 1; 10, motor 1; 11, button; 12, guide post; 13, pressing piece; 14, spring; 15, collar; 16, fixed seat; 17, push bar; 18, slide rail 2; 19, slider 2; 20, screw 2; 21, motor 2; 22, slide rail 3; 23, slider 3; 24, backing plate; 25, screw 3; 26, motor 3; 27, air flow velocity acquisition module; 28, control module. Specific implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0035] Refer to Figures 1 - 6 , a milling device for building model processing, including a frame 1, an elevating assembly is installed at the top of the frame 1, a milling cutter drive box 2 is installed on the elevating assembly, a translation assembly and a clamping assembly are installed at the bottom of the frame 1, an actuator is arranged below the milling cutter drive box 2, the actuator includes a jet plate 6, an air inlet of the jet plate 6 is connected to a hose 5, the hose 5 is connected to an air pump 4, the air pump 4 is fixed on the side of the frame 1, and it also includes a button 11 electrically connected to the air pump 4, and the button 11 is connected to a triggering structure;

[0036] During use, the hard wooden board to be milled is installed on the clamping assembly, and the elevating assembly, the translation assembly and the milling cutter drive box 2 will mill the wooden board according to the program set by the system. When the milling cutter descends with the elevating assembly to mill the wooden board, the triggering structure will always press the button 11, and then the air pump 4 will be powered on and send air to the jet plate 6 through the hose 5, and the gas will be blown towards the direction of the milling cutter, so as to timely blow the generated chips during the milling process. When the milling cutter moves away from the wooden board with the elevating assembly, the triggering structure will cancel the pressing of the button 11, and at this time the blowing action will stop, thereby reducing energy consumption.

[0037] Among them, the lifting component includes a first slide rail 7 fixedly connected to the frame 1. A first motor 10 is fixedly connected to the top end of the first slide rail 7. The output shaft of the first motor 10 is connected to a first screw rod 9. A first slider 8 that is threadedly connected to the first screw rod 9 and slidably connected to the first slide rail 7 through a pair of guide columns 12 is fixedly connected to the milling cutter drive box 2;

[0038] During use, the output shaft of the first motor 10 drives the first screw rod 9 to rotate, and then the first screw rod 9 can drive the first slider 8 to move up and down, so as to drive the milling cutter to move in the up and down directions.

[0039] Among them, the triggering structure includes a pressing piece 13, a spring 14 and a collar 15 that are sleeved on one of the guide columns 12 and located below the first slider 8. The two ends of the spring 14 are respectively fixedly connected to the pressing piece 13 and the collar 15. The pressing piece 13 is slidably connected to the guide column 12 and presses on the button 11, and the button 11 is fixedly connected to the first slide rail 7;

[0040] During use, when the bottom end of the milling cutter just touches the surface of the wooden board, the first slider 8 just touches the collar 15. At different milling depths, the collar 15 will continuously be squeezed by the first slider 8, and then the collar 15 squeezes the pressing piece 13 through the spring 14, and the pressing piece 13 presses down the button 11, so as to ensure that the button 11 can be pressed down at different milling depths.

[0041] Furthermore, a fixed seat 16 is fixedly connected to the bottom of the first slide rail 7. The air jet plate 6 is rotatably connected to the fixed seat 16 through a torsion spring. A push bar 17 is fixedly connected to the side of the first slider 8. Multiple flanges that are distributed up and down and can contact the air jet plate 6 are provided on the front end surface of the push bar 17;

[0042] During use, as the first slider 8 moves up and down, it will synchronously drive the push bar 17 to move. The push bar 17 will push and squeeze the air jet plate 6 through the flanges above, so that the air jet plate 6 rotates, so that the air jet range is expanded, thereby improving the purging effect on the debris.

[0043] Among them, the translation component includes a second slide rail 18 fixedly connected to the frame 1. A second motor 21 is fixedly connected to one end of the second slide rail 18. The output shaft of the second motor 21 is connected to a second screw rod 20. A second slider 19 that is threadedly connected to the second screw rod 20 and slidably connected to the second slide rail 18 is fixedly connected to the clamping component;

[0044] During use, the output shaft of the second motor 21 drives the second screw rod 20 to rotate, and then the second screw rod 20 drives the second slider 19 to move, so that the clamping component and the wooden board can be synchronously driven by the second slider 19 to translate.

[0045] Among them, the clamping assembly includes a third slide rail 22 fixedly connected to the top of the second slider 19. One end of the third slide rail 22 is fixedly connected to a third motor 26. The output shaft of the third motor 26 is connected to a third screw 25. A third slider 23 that is slidably connected to the third slide rail 22 is threadedly connected to the third screw 25. One end of the top of the third slide rail 22 away from the third motor 26 is fixedly connected to a backing plate 24;

[0046] During use, place the wooden board between the third slider 23 and the backing plate 24, and then the output shaft of the third motor 26 drives the third screw 25 to rotate. The third screw 25 will drive the third slider 23 to approach the backing plate 24, thereby clamping the wooden board through the third slider 23 and the backing plate 24.

[0047] In another embodiment, it further includes a debris accumulation amount acquisition module 3, an air flow velocity acquisition module 27, and a control module 28. The debris accumulation amount acquisition module 3 is used to acquire the debris density parameter in real time. The air flow velocity acquisition module 27 is used to acquire the air flow efficiency parameter in real time. The control module 28 receives the data acquired by the debris accumulation amount acquisition module 3 and the air flow velocity acquisition module 27 and generates an evaluation coefficient, compares it with a preset reference threshold, and controls the working state of the actuator according to the comparison result;

[0048] It should be noted that the debris accumulation amount acquisition module 3 can be a debris density sensor or other devices that can acquire the debris density parameter in real time. The air flow velocity acquisition module 27 can be an air flow velocity sensor or other devices that can acquire the air flow efficiency parameter in real time. The control module 28 is an embedded controller (such as the STM32 series) integrating a data fusion algorithm. Therefore, the debris accumulation amount acquisition module 3, the air flow velocity acquisition module 27, and the control module 28 are not specifically limited here and can be selected according to actual needs;

[0049] During use, the control module 28 receives the data acquired by the debris accumulation amount acquisition module 3 and the air flow velocity acquisition module 27 in real time, conducts comprehensive analysis, and then generates an evaluation coefficient. By comparing the evaluation coefficient with a preset evaluation coefficient reference threshold, it determines whether the amount of debris on the surface of the wooden board is within a reasonable range, and controls the working state of the actuator according to the comparison result. If the amount of debris on the surface of the wooden board is not within a reasonable range, the actuator will automatically adjust the purging state.

[0050] Among them, the control module 28 is installed on the first slide rail 7. The debris accumulation amount acquisition module 3 is installed at the bottom of the milling cutter drive box 2 and on the side of the milling cutter. The air flow velocity acquisition module 27 is installed on the jet plate 6 and is kept parallel to the air duct;

[0051] During use, in this way, it is possible to better acquire the debris density parameter in real time through the debris accumulation amount acquisition module 3 and better acquire the air flow efficiency parameter in real time through the air flow velocity acquisition module 27.

[0052] In another embodiment, through the cooperation among the chip accumulation amount acquisition module 3, the air flow velocity acquisition module 27, the control module 28 and the actuator, the control logic for the chips generated during intelligent purging milling is specifically as follows:

[0053] Data acquisition: The chip density parameter S is acquired through the chip accumulation amount acquisition module 3, and the air flow efficiency parameter V is acquired through the air flow velocity acquisition module 27;

[0054] Evaluation coefficient calculation: An evaluation coefficient is generated to quantify the purging requirement;

[0055] Action decision: According to the threshold range of K, the air pressure intensity P of the jet plate 6 is dynamically adjusted;

[0056] Feedback optimization: The purging effect is monitored in real time, and the parameter weights α and β are corrected through the PID algorithm.

[0057] In the above, the calculation formula of the evaluation coefficient is:

[0058] K = α·S + β·(1 - V)

[0059] In the formula, α, β: weight coefficients, 1 - V: reverse index reflecting insufficient air flow;

[0060] In the above, the calculation formula of the chip density parameter S is:

[0061]

[0062] In the formula, A debris : chip coverage area (mm 2 ), A total : total milling area (mm 2 ).

[0063] In the above, the calculation formula of the air flow efficiency parameter V is:

[0064]

[0065] In the formula, v actual : measured wind speed at the jet orifice (m / s), v max : rated maximum wind speed of the jet plate 6 (m / s).

[0066] In the above, the calculation formula of the air pressure intensity P is:

[0067] P = P max ·tanh(K)

[0068] In the formula, tanh: hyperbolic tangent function, which limits the air pressure within the safe range.

[0069] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A milling device for processing building models, comprising a frame (1), characterized in that, A lifting component is installed at the top of the frame (1), a milling cutter drive box (2) is installed on the lifting component, a translation component and a clamping component are installed at the bottom of the frame (1), an actuator is arranged below the milling cutter drive box (2), the actuator includes an air jet plate (6), an air inlet of the air jet plate (6) is connected with a hose (5), the hose (5) is connected with an air pump (4), the air pump (4) is fixed on the side of the frame (1), and further includes a button (11) electrically connected with the air pump (4), and the button (11) is connected with a triggering structure.

2. The milling equipment for building model processing according to claim 1, characterized in that The lifting component includes a first slide rail (7) fixedly connected to the frame (1), a first motor (10) is fixedly connected to the top of the first slide rail (7), a first screw rod (9) is connected to the output shaft of the first motor (10), a first slider (8) threadedly connected to the first screw rod (9) and slidably connected to the first slide rail (7) through a pair of guide columns (12) is provided, and the milling cutter drive box (2) is fixedly connected to the first slider (8).

3. The milling equipment for building model processing according to claim 2, characterized in that, The triggering structure includes a pressing piece (13), a spring (14) and a collar (15) which are sleeved on one of the guide columns (12) and located below the first slider (8), two ends of the spring (14) are respectively fixedly connected with the pressing piece (13) and the collar (15), the pressing piece (13) is slidably connected to the guide column (12) and presses on the button (11), and the button (11) is fixedly connected to the first slide rail (7).

4. A milling device for building model processing according to claim 2, characterized in that, A fixed seat (16) is fixedly connected to the bottom of the first slide rail (7), the air jet plate (6) is rotatably connected to the fixed seat (16) through a torsion spring, a push bar (17) is fixedly connected to the side of the first slider (8), and a plurality of flanges which are distributed up and down and can contact the air jet plate (6) are arranged on the front end surface of the push bar (17).

5. A milling device for building model processing according to claim 1, characterized in that, The translation component includes a second slide rail (18) fixedly connected to the frame (1), a second motor (21) is fixedly connected to one end of the second slide rail (18), a second screw rod (20) is connected to the output shaft of the second motor (21), a second slider (19) threadedly connected to the second screw rod (20) and slidably connected to the second slide rail (18) is provided, and the clamping component is installed on the second slider (19).

6. The milling equipment for building model processing according to claim 5, characterized in that, The clamping component includes a third slide rail (22) fixedly connected to the top of the second slider (19), a third motor (26) is fixedly connected to one end of the third slide rail (22), a third screw rod (25) is connected to the output shaft of the third motor (26), a third slider (23) threadedly connected to the third screw rod (25) and slidably connected to the third slide rail (22) is provided, and a backing plate (24) is fixedly connected to one end of the top of the third slide rail (22) far away from the third motor (26).

7. A milling device for building model processing according to claim 1, characterized in that It further includes a debris accumulation amount acquisition module (3), an air flow velocity acquisition module (27) and a control module (28). The debris accumulation amount acquisition module (3) is used for acquiring debris density parameters in real time, the air flow velocity acquisition module (27) is used for acquiring air flow efficiency parameters in real time, the control module (28) receives the data acquired by the debris accumulation amount acquisition module (3) and the air flow velocity acquisition module (27) and generates an evaluation coefficient, compares it with a preset reference threshold, and controls the working state of the actuator according to the comparison result.

8. A milling device for building model processing according to claim 7, characterized in that, The control module (28) is installed on the first slide rail (7), the debris accumulation amount acquisition module (3) is installed at the bottom of the milling cutter drive box (2) and is located on the side of the milling cutter, and the air flow velocity acquisition module (27) is installed on the air jet plate (6) and kept parallel to the air duct.

9. A milling device for building model processing according to claim 7, characterized in that, The control logic of the control module (28) for the working state of the actuator is as follows: Data acquisition: The debris density parameter S is acquired through the debris accumulation amount acquisition module (3), and the air flow efficiency parameter V is acquired through the air flow velocity acquisition module (27); Evaluation coefficient calculation: Generate an evaluation coefficient for quantifying the purging requirement; Action decision: Dynamically adjust the air pressure intensity P of the air jet plate 6 according to the threshold range of K; Feedback optimization: Monitor the purging effect in real time and correct the parameter weights α and β through the PID algorithm.

10. A milling device for building model processing according to claim 9, characterized in that, The formula for calculating the evaluation coefficient is: K = α·S + β·(1 - V) In the formula, α, β: weight coefficients, 1 - V: a reverse index reflecting insufficient air flow.

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