A CNC milling automatic deburring device

Abstract

The utility model relates to a kind of CNC milling automatic deburring device, and the feeding box and the receiving box are respectively arranged on the both sides of workbench, and the left side of feeding box is equipped with pusher assembly, workpiece is lifted to predetermined position by lifting assembly one by one, it is pushed into processing groove by pusher assembly, clamping mechanism automatically locks workpiece and carries out deburring operation, after processing is completed, the next workpiece is fed by push mechanism, and the workpiece processed is pushed to the side of receiving box simultaneously, and is inclined and slides into discharge port, with the continuous entry of subsequent workpiece, receiving assembly gradually drops, so that workpiece is stacked on receiving assembly one by one, to avoid damage caused by workpiece directly falling.This further, the chip collecting frame is communicated with the chip removal hole below processing groove, negative pressure is formed in chip collecting frame by air extractor, so that the chip generated in deburring process is sucked into chip collecting frame through chip removal hole, effectively prevent dust accumulation from affecting machining accuracy.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, and in particular to an automatic deburring device for CNC milling. Background Technology

[0002] With the continuous development of the machining industry, CNC milling, as an important machining method, is widely used in the machining of various parts. However, after milling, burrs often remain on the surface of the workpiece. These burrs not only affect the appearance quality of the workpiece, but may also have adverse effects on subsequent assembly and use. Therefore, how to effectively remove burrs from the surface of the workpiece after milling has become an urgent problem to be solved.

[0003] In the prior art, the authorized publication number is CN215547385U, entitled "A Quick Deburring Device for CNC Machining," which includes a cover and a base. The base is fixedly connected to the top of the cover. A first sleeve is fixedly connected inside the top of the cover. A second sleeve is sleeved outside the first sleeve. A tension spring is fixedly connected between the bottom of the second sleeve and the inner wall of the top of the first sleeve. A fixing ring is fixedly connected to the bottom of the second sleeve, and a housing is fixedly connected to the bottom of the fixing ring. A circular through hole is opened at the bottom of the housing, and a motor is fixedly connected to the inner wall of the top of the housing. This invention, by setting a rotating rod, allows the part to be placed in a fixed groove during deburring. The motor is started to drive the grinding column to rotate. Then, pressing the first handle deflects the rotating rod, causing the housing to move downwards via the fixing ring. This allows the rotating grinding column to contact the burrs on the part, thereby removing the burrs.

[0004] However, this patent requires manual loading and unloading of materials one by one, and the box door needs to be opened during the loading and unloading process, which is cumbersome and inefficient, making it difficult to achieve continuous operation. At the same time, manual intervention increases the risk of operation errors and affects the consistency of processing. In addition, frequent opening and closing of the box door can easily lead to dust leakage, which is detrimental to the cleanliness of the working environment and the health of the operators. Utility Model Content

[0005] Therefore, it is necessary to provide an automatic deburring device for CNC milling.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A CNC milling automatic deburring device includes: a worktable, the upper surface of which is provided with a machining groove, and the two sides of the machining groove are respectively provided with connecting holes. A clamping mechanism for fixing the workpiece is provided on the side wall of the machining groove adjacent to the connecting holes; a deburring device is provided above the machining groove, and the deburring device is correspondingly arranged with the machining groove; a loading box and a receiving box are respectively provided on the two sides of the worktable, the loading box is provided with a first lifting component; the receiving box is provided with a receiving component; the upper end of the loading box is provided with a through hole connected to the connecting holes, and the end of the through hole away from the worktable is provided with a pushing component to push the workpiece into the machining groove; the upper end of the receiving box is provided with a discharge port connected to the connecting holes, and the workpiece enters the receiving box through the discharge port.

[0007] In one embodiment, the lifting assembly includes a first cylinder disposed inside the feeding box and a lifting plate fixed to the end of the first cylinder; the receiving assembly has the same structure as the lifting assembly.

[0008] In one embodiment, the pushing assembly includes a pushing cylinder and a push plate disposed outside the loading box, the push plate being at the same height as the through hole, and the push plate moving closer to or away from the worktable within the through hole.

[0009] In one embodiment, the clamping mechanism includes clamping components symmetrically arranged inside the worktable. The clamping components include clamping cylinders and abutment plates, and the abutment plates are provided with anti-slip pads on the side near the center of the machining groove.

[0010] In one embodiment, the end of the processing groove away from the feeding box is further provided with a blocking part. The blocking part includes an installation groove disposed in the processing groove and a baffle disposed in the installation groove. The bottom of the baffle is connected to the installation groove by a compression spring, and the height of the upper end of the baffle is greater than the height of the bottom surface of the processing groove.

[0011] In one embodiment, the side of the baffle away from the receiving box is an inclined guide angle.

[0012] In one embodiment, the workbench is provided with a chip collection frame, which is located below the processing tank, and the bottom of the processing tank is provided with a plurality of chip discharge holes communicating with the chip collection frame.

[0013] In one embodiment, an exhaust fan is also provided below the workbench. The air inlet of the exhaust fan is provided with an air duct that is connected to the rear end of the debris collection frame. A filter screen is provided at the end of the air duct away from the exhaust fan.

[0014] In one embodiment, the bottom of the connecting hole near the receiving box is a downward-sloping surface facing the discharge port, and the discharge port is provided corresponding to the slope.

[0015] In one embodiment, the upper end of the workbench is also provided with a dust cover, and the front end of the dust cover is provided with an openable and closable door.

[0016] The beneficial effects of this utility model are as follows: This utility model provides an automatic deburring device for CNC milling. A loading box and a receiving box are respectively set on both sides of the worktable. A pushing component is provided on the left side of the loading box. The lifting component lifts the workpieces one by one to a predetermined position, and the pushing component pushes them into the processing slot. The clamping mechanism automatically locks the workpiece for deburring. After processing, the pushing mechanism loads the next workpiece and simultaneously pushes the processed workpiece to one side of the receiving box, where it slides into the unloading port at an angle. As subsequent workpieces continuously enter, the receiving component gradually descends, stacking the workpieces one by one on the receiving component, preventing direct drop and damage. Furthermore, a chip discharge hole connected to a chip collection frame is provided below the processing slot. A blower creates negative pressure inside the chip collection frame, causing the chips generated during deburring to be sucked into the chip collection frame through the chip discharge hole, effectively preventing dust accumulation from affecting processing accuracy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a plan view of an automatic deburring device for CNC milling according to one embodiment;

[0019] Figure 2 This is a schematic diagram of an automatic deburring device for CNC milling according to one embodiment;

[0020] Figure 3 A cross-sectional structural schematic diagram of an automatic deburring device for CNC milling according to one embodiment;

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle.

[0022] In the attached diagram, 100 is the workbench; 110 is the processing groove; 111 is the connecting hole; 112 is the chip removal hole; 120 is the mounting groove; 121 is the baffle; 122 is the compression spring; 123 is the guide angle; 130 is the chip collection frame; 200 is the clamping component; 300 is the deburring device; 400 is the feeding box; 410 is the through hole; 420 is the first cylinder; 421 is the lifting plate; 430 is the pushing cylinder; 431 is the push plate; 500 is the receiving box; 510 is the discharge port; 520 is the receiving component; 600 is the exhaust fan; 610 is the air duct; 620 is the filter screen; 700 is the dust cover; and 710 is the box door. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0024] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] In one embodiment, such as Figure 1 and Figure 2As shown, an automatic deburring device 300 for CNC milling includes a worktable 100. A loading box 400 is provided on the left side of the worktable 100, and a receiving box 500 is provided on the right side. A processing groove 110 is provided at the upper end of the worktable 100. Clamping mechanisms are provided on the front and rear side walls of the processing groove 110 for fixing the workpiece to be processed. A deburring device 300 is provided above the worktable 100. The deburring device 300 is located directly above the processing groove 110 and is used to clean the burrs generated after the workpiece is processed. A connecting hole 111 is provided on the side wall of the processing groove 110 near the loading box 400 and the receiving box 500. The left connecting hole 111 communicates with the through hole 410 provided at the upper end of the loading box 400 to form a loading channel for the workpiece to be processed to enter. The right connecting hole 111 corresponds to the unloading port 510 on the receiving box 500 to form an unloading channel for the processed workpiece to be discharged. A pushing component is provided on the side wall of the feeding box 400 away from the worktable 100. The feeding box 400 and the receiving box 500 are respectively provided with a lifting component and a receiving component 520. The lifting component lifts the workpieces one by one to the same height as the through hole 410, and the pushing component pushes the uppermost workpiece into the processing groove 110 for deburring. After deburring, the workpiece enters the receiving box 500 from the unloading channel. The receiving component 520 descends to the same height as the workpiece thickness as the workpiece enters, so that the workpieces are stacked layer by layer in the receiving box 500 to avoid collision damage.

[0026] Furthermore, the lifting assembly includes a first cylinder 420 located at the bottom of the loading box 400 and a lifting plate 421 fixed on the piston rod of the first cylinder 420. The first cylinder 420 drives the lifting plate 421 to reciprocate vertically, lifting the workpieces in the loading box 400 one by one to the same height as the through hole 410, facilitating the pushing assembly to push them into the processing slot 110. The receiving assembly 520 is located at the bottom of the receiving box 500 and has the same structure as the lifting assembly. The initial height of the receiving assembly 520 is slightly lower than the height of the receiving box's inlet, and it gradually descends as workpieces are continuously entered, allowing the workpieces to be stably stacked layer by layer in the receiving box 500, effectively avoiding surface damage caused by collisions.

[0027] To facilitate the pushing of workpieces from the loading box 400 into the processing tank 110, a pushing assembly is provided on the left side of the loading box 400. The pushing assembly includes a pushing cylinder 430 and a push plate 431 fixed to the end of the pushing cylinder 430. The height of the push plate 431 is the same as the height of the through hole 410. The extension and retraction movement of the pushing cylinder 430 drives the push plate 431 to move horizontally within the through hole 410, smoothly pushing the workpiece located at the top of the loading box 400 into the processing tank 110. One workpiece is pushed at a time, realizing the sequential loading of workpieces.

[0028] To prevent displacement of the workpiece during deburring, clamping components 200 are symmetrically provided on the front and rear side walls of the machining groove 110. Each clamping component 200 includes a clamping cylinder and a backing plate. The clamping cylinder is fixed inside the worktable 100, and its output end extends into the machining groove 110 and is fixedly connected to the backing plate. An anti-slip pad is also provided on the side of the backing plate away from the clamping cylinder. The anti-slip pad increases the friction with the workpiece surface, effectively preventing the workpiece from sliding during clamping and improving the stability of the clamped workpiece.

[0029] To prevent workpieces from passing directly through the processing groove 110 due to excessive speed during loading, a blocking part is provided at the end of the processing groove 110 away from the loading box 400. The blocking part includes a mounting groove 120, a baffle 121, and a compression spring 122. The bottom of the compression spring 122 is connected to the bottom of the mounting groove 120, and the top of the compression spring 122 is fixedly connected to the bottom of the baffle 121. The upper end of the baffle 121 extends into the processing groove 110, providing a certain resistance and buffering the workpiece, allowing it to stop smoothly in the processing groove 110. The baffle 121 has an upwardly inclined guide angle 123 on the side near the center of the processing groove 110. When deburring is completed and the next workpiece is pushed into the processing groove 110, the previous workpiece is pushed by the force and, guided by the guide angle 123, pushes the baffle 121 downward to retract. The compression spring 122 deforms accordingly, allowing the previous deburred workpiece to smoothly move out of the processing groove 110 and into the unloading channel.

[0030] Furthermore, to prevent chips generated during processing from flying everywhere, multiple chip removal holes 112 are arranged at the bottom of the processing tank 110. A chip collection frame 130 is provided below the chip removal holes 112. The chip collection pipe is slidably connected to the worktable 100. The processing tank 110 and the chip collection frame 130 are connected through the chip removal holes 112, so that the cutting chips fall into the collection frame automatically under the action of gravity. In order to improve the chip collection effect, an exhaust fan 600 is also provided below the worktable 100. The air inlet of the exhaust fan 600 is connected to one end of the air duct 610. The other end of the air duct 610 extends into the worktable 100 and connects to the through hole at the rear end of the chip collection frame 130. A filter screen 620 is provided at the end of the air duct 610 near the chip collection frame 130 to prevent chips from being sucked into the exhaust fan 600 and causing blockage or damage. The duct 610 and the debris collection frame 130 are equipped with a flexible sealing strip and an interference fit with the through hole, allowing the duct 610 and the debris collection frame 130 to be detached when the debris collection pipe needs to be removed for cleaning. The operation of the exhaust fan 600 generates negative pressure, drawing fine debris suspended in the processing tank 110 into the debris collection frame 130 through the chip discharge hole 112. This effectively prevents debris accumulation from affecting processing accuracy, while maintaining a clean working environment and reducing safety hazards.

[0031] To improve the workpiece unloading efficiency, an inclined surface is provided at the bottom of the connecting hole 111 near the receiving box 500. The inclined surface is inclined downward towards the receiving box 500, and the unloading port 510 of the receiving box 500 corresponds to the inclined surface with the same inclination angle. This allows the workpiece that moves into the connecting hole 111 to automatically slide into the receiving box 500 along the inclined surface under the action of gravity, thus achieving continuous and efficient automated unloading.

[0032] Furthermore, in order to prevent dust in the air from falling into the deburring device 300 and the processing tank 110, a dust cover 700 is provided on the upper surface of the workbench 100. The front end of the dust cover 700 is provided with a door 710, which facilitates opening the door 710 to inspect and maintain the internal mechanism. Air inlets are also provided on both sides of the dust cover 700, and dust filters are installed at the air inlets, which can effectively block external dust from entering the processing area and improve the cleanliness of the processing environment.

[0033] It is worth noting that the deburring device 300 is an existing design and will not be elaborated upon here.

[0034] The general workflow of this utility model is as follows: Milled workpieces are placed into the upper feed box 400. The lifting component raises the uppermost workpiece to the same height as the through hole 410. The pushing component slowly pushes the workpiece into the processing groove 110. After the workpiece is fixed by the clamping mechanism, the deburring device 300 grinds and deburrs the workpiece. After processing, the pushing component pushes the next workpiece into the processing groove 110. The deburred workpiece moves to the right under the pushing force, and under the guidance of the guide angle 123, the baffle 121 is pressed down, and then it slides along the inclined surface into the receiving box 500. The receiving component 520 in the receiving box descends to the same height as the workpieces continuously enter, ensuring stable stacking and avoiding impact damage. During processing, the exhaust fan 600 runs continuously, creating negative pressure in the chip collection frame 130, drawing fine chips generated during processing into the chip collection frame 130 through the chip discharge hole 112, preventing chips from flying and polluting the environment or adhering to the workpiece surface and affecting processing quality. Meanwhile, the dust cover 700 effectively isolates external dust, ensuring deburring accuracy and equipment operation stability, and achieving an efficient and clean deburring process.

[0035] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic deburring device for CNC milling, characterized in that, include: The workbench has a machining groove on its upper surface, with connecting holes on both sides of the machining groove. A clamping mechanism for fixing workpieces is provided on the sidewall of the machining groove adjacent to the connecting holes. A deburring device is provided above the machining groove, corresponding to the machining groove. A loading box and a receiving box are provided on both sides of the workbench. The loading box contains a lifting component, and the receiving box contains a receiving component. The upper end of the loading box has a through hole connected to the connecting holes, and a pushing component is provided at the end of the through hole away from the workbench to push the workpiece into the machining groove. The upper end of the receiving box has a discharge port connected to the connecting holes, through which the workpiece enters the receiving box.

2. The automatic deburring device for CNC milling according to claim 1, characterized in that, The lifting assembly includes a first cylinder disposed inside the feeding box and a lifting plate fixed to the end of the first cylinder; the receiving assembly has the same structure as the lifting assembly.

3. The automatic deburring device for CNC milling according to claim 1, characterized in that, The pushing assembly includes a pushing cylinder and a push plate disposed outside the feeding box. The push plate is at the same height as the through hole, and the push plate moves closer to or away from the worktable within the through hole.

4. The automatic deburring device for CNC milling according to claim 1, characterized in that, The clamping mechanism includes clamping components symmetrically arranged inside the worktable. The clamping components include clamping cylinders and abutment plates. The abutment plates are provided with anti-slip pads on the side near the center of the machining groove.

5. The automatic deburring device for CNC milling according to claim 1, characterized in that, The processing tank is also provided with a blocking part at the end away from the feeding box. The blocking part includes an installation groove and a baffle in the installation groove. The bottom of the baffle is connected to the installation groove by a compression spring. The height of the upper end of the baffle is greater than the height of the bottom surface of the processing tank.

6. The automatic deburring device for CNC milling according to claim 5, characterized in that, The side of the baffle away from the receiving box is set at an inclined guide angle.

7. The automatic deburring device for CNC milling according to claim 6, characterized in that, The workbench is equipped with a chip collection frame, which is located below the processing tank. The bottom of the processing tank has multiple chip discharge holes that communicate with the chip collection frame.

8. The automatic deburring device for CNC milling according to claim 7, characterized in that, A blower is also provided below the workbench. The air inlet of the blower is connected to the rear end of the debris collection frame by an air duct. A filter screen is provided at the end of the air duct away from the blower.

9. The automatic deburring device for CNC milling according to claim 1, characterized in that, The bottom of the connecting hole near the receiving box is a downward sloping surface facing the discharge port, and the discharge port is set correspondingly to the sloping surface.

10. An automatic deburring device for CNC milling according to any one of claims 1-9, characterized in that, The workbench is also equipped with a dust cover at its upper end, and the front end of the dust cover has an openable and closable door.

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