A milling cutter grinding machine with integrated pneumatic chip handling

Abstract

This invention discloses an integrated pneumatic chip handling milling machine, comprising a milling base, a positioning shell, and a grinding wheel within the positioning shell. It includes: a negative pressure generating unit mounted on the upper end of the milling base; a metal frame with an integrally formed bending rod rotatably mounted within the negative pressure generating unit; a filter layer with a deformation layer fixed to the upper end of the metal frame and located below the grinding wheel; under negative pressure, the filter layer adsorbs powder, and the deformation layer deforms, then recovers to hold the powder; a transmission unit connected between the milling base and the grinding wheel, with its outer side connected to the metal frame, drives the bending rod to cooperate with the negative pressure generating unit to produce intermittent vibration. Under negative pressure, the metal powder adsorbed by the filter layer and the deformation layer concentrates as much as possible within the deformation layer, reducing the impact on the filtration effect of the filter layer. Without negative pressure, the deformation layer holds the metal powder, preventing it from flying away during subsequent operations.

Description

Technical Field

[0001] This invention relates to the field of milling cutter grinding machine technology, specifically to a milling cutter grinding machine with integrated pneumatic chip processing. Background Technology

[0002] Currently, milling cutter grinding machines are important equipment in the machining field, mainly used to repair worn or chipped milling cutters to extend tool life and reduce machining costs. However, existing milling cutter grinding machines still have significant shortcomings in terms of structural design, operating efficiency, and chip handling. Specifically, traditional equipment generates a large amount of metal chips and cemented carbide powder during the grinding process. These chips are scattered due to inadequate protective structures (such as an exposed top of the protective box), which not only pollutes the working environment but may also cause safety accidents due to accidental contact by operators. For example, when the powder concentration reaches 40g / m³, it may explode upon contact with an electric spark, the carcinogens in the powder may be inhaled, and the powder may become lodged in other equipment.

[0003] The current solution to the above-mentioned defects is to purge after shutdown or actively guide the debris out through high-pressure airflow or negative pressure devices. However, this solution still has some problems, specifically:

[0004] 1. Metal powder can adhere to the filter structure, which can reduce the filtration effect or even cause the motor to overload and burn out.

[0005] 2. Metal powder adhering to the filter structure needs to be replaced regularly to avoid affecting the filtration effect. If it is not replaced in time, the aforementioned problems of reduced filtration effect and motor overload will occur. Therefore, a timed replacement alarm device needs to be installed, which further increases the complexity of the structure. Without this device, it is difficult to control the replacement time. At the same time, when the structure is complex, metal powder can easily affect precision instruments.

[0006] 3. The metal powder collected on the filter structure is adsorbed under the action of high-pressure airflow or negative pressure device. However, when the high-pressure airflow or negative pressure device stops, the metal powder will not always adhere to the filter structure. In particular, when the metal powder reaches a certain amount, the high-pressure airflow or negative pressure device will continue to run. Although this can prevent the metal powder from changing position, the energy consumption required will be further increased. Summary of the Invention

[0007] The purpose of this invention is to provide a milling cutter grinding machine with integrated pneumatic chip handling to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a milling cutter grinding machine integrating pneumatic chip treatment, comprising a grinding base, a positioning shell, and a grinding wheel inside the positioning shell, including:

[0009] The negative pressure generating unit is installed on the upper end of the grinding base;

[0010] The metal frame has an integrated bending rod that is rotatably installed inside the negative pressure generating part;

[0011] The filter layer has a deformation layer, which is fixed to the upper end of the metal frame and located at the lower end of the grinding wheel. Under negative pressure, the filter layer adsorbs the powder and the deformation layer deforms. The deformation layer recovers and holds the powder.

[0012] The transmission unit is connected between the grinding seat and the grinding wheel, and its outer side is connected to the metal frame. It drives the bending rod to cooperate with the negative pressure generating unit to produce intermittent vibration.

[0013] Furthermore, the negative pressure generating unit includes:

[0014] The support plate is fixed to the upper end of the grinding base, and its upper end is fixed to the positioning shell. It has a processing cavity formed inside, and the lower end of the processing cavity has a through adsorption port.

[0015] The adsorption layer is fixed to the lower end of the support plate, and the outside is connected to a connecting pipe that is connected to the air pump to generate negative pressure at the adsorption port.

[0016] Furthermore, the metal frame includes:

[0017] The inner and outer ring frames are fixed with retaining rings on both sides of the inner wall of the processing chamber, and the two ring frames are respectively locked onto the retaining rings on both sides;

[0018] Multiple horizontal bars are fixed between two ring frames and distributed in a circular pattern. The middle section of the horizontal bar is integrally formed with the bending bar. Under negative pressure, the horizontal bar and the bending bar extend downward into the adsorption port. When rotated, they move out of the adsorption port and produce vibration.

[0019] Furthermore, the bent rod is V-shaped, both the crossbar and the bent rod are elastic, and the upper edge of the adsorption port has a rounded transition.

[0020] Furthermore, the number of adsorption ports in the circumferential direction is the same as the number of bent rods, and their positions are opposite.

[0021] Furthermore, the filter layer is in a ring shape, and the cross-section of the deformation layer is "V" shaped, fitting against the upper end of the bent rod.

[0022] Furthermore, the portion where the deformation layer transitions to the filter layer has multiple folds, and the deformation layer is equidistant from the inner and outer diameters of the filter layer.

[0023] Furthermore, the transmission unit includes:

[0024] The outer shaft is fixed to the grinding base;

[0025] The inner shaft passes through the outer shaft and is fixed to the output end inside the grinding seat; the outer end of the inner shaft is detachably fixed to the grinding wheel.

[0026] Planetary gear sets, mounted on the outer shaft, are used to drive the inner shaft and the metal frame.

[0027] Furthermore, the planetary gear set includes:

[0028] The sun gear is fixedly sleeved with the inner shaft;

[0029] The planetary gear meshes with the sun gear and is located at the upper end of the outer shaft. A planet carrier is attached to the upper end of the planetary gear, and a connecting rod that can be detachably fixed to the metal frame is fixed to the outside of the planet carrier.

[0030] The gear ring is integrally formed on the upper end of the outer shaft, and its inner surface meshes with the planetary gears.

[0031] Furthermore, the filter layer includes an inner filter layer and an outer filter layer, and a deformation layer is integrally disposed between the inner filter layer and the outer filter layer. The outer ends of the inner filter layer and the outer filter layer are respectively fixed to the inner and outer ring frames.

[0032] The folds include inner folds, outer folds, and fold connecting parts. The inner folds and outer folds are located on the inner filter layer and outer filter layer, respectively. Both the inner folds and outer folds extend towards the deformation layer. The fold connecting parts are located on the surface of the deformation layer, and their two ends are connected to the inner folds and outer folds, respectively. When the filter layer is deformed under negative pressure, the inner folds and outer folds are in a state of compression and tension, respectively. One side of the "V" shape of the fold connecting parts is also compressed, and the other side is stretched.

[0033] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0034] 1. Under negative pressure, the metal powder adsorbed by the filter layer and deformation layer can concentrate as much as possible in the interior of the deformation layer, reducing the impact on the filtration effect of the filter layer. Without negative pressure, the deformation layer can hold the metal powder, preventing the metal powder from flying away in subsequent operations.

[0035] 2. After the metal powder is relatively concentrated in the deformation layer, the remaining parts of the filter layer can continue to filter. Even if the filtration effect is reduced, the filtration effect still exists and will not directly affect the filtration effect. There is no need to precisely control the replacement time.

[0036] 3. The rotating metal frame and filter layer vibrate, and the "V" state of the filter layer and deformation layer undergoes a dynamic change, concentrating the generated metal powder into the deformation layer for further concentration and anti-clogging.

[0037] 4. The outer side of the pleated connection within the deformation layer is stretched and the inner side is squeezed. The squeezed part of the pleats will deform into depressions or protrusions. Some of the metal powder accumulated in the deformation layer will be trapped by the pleated connection. During the rotation of the filter layer, the metal powder located in the deformation layer can be restricted, preventing it from moving under the action of inertia, reducing the dispersion effect of the metal powder, and further concentrating the metal powder. Attached Figure Description

[0038] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the negative pressure generating part of the present invention;

[0041] Figure 3 This is a half-sectional structural diagram of the negative pressure generating part of the present invention;

[0042] Figure 4 This is a schematic diagram of the metal frame and filter layer structure of the present invention;

[0043] Figure 5 This is a schematic diagram of the separation structure of the negative pressure generating part, metal frame and filter layer of the present invention;

[0044] Figure 6 This is a schematic diagram of the position and structure of the crossbar and bending bar when no negative pressure is generated in this invention;

[0045] Figure 7 This is a schematic diagram of the position and structure of the crossbar and bending bar under negative pressure conditions according to the present invention;

[0046] Figure 8 This is the present invention. Figure 3 A magnified schematic diagram of part A in the diagram.

[0047] Figure 9 This is a partial top view of the filter layer of the present invention.

[0048] In the diagram: 1. Grinding base; 2. Positioning shell; 3. Grinding wheel; 4. Support plate; 41. Processing chamber; 42. Snap ring; 43. Adsorption port; 5. Adsorption layer; 51. Connecting pipe; 6. Metal frame; 61. Ring frame; 62. Crossbar; 63. Bending rod; 64. Connecting rod; 7. Filter layer; 701. Inner filter layer; 702. Outer filter layer; 703. Inner pleat; 704. Outer pleat; 705. Pleat connection; 71. Deformation layer; 8. Transmission unit; 81. Outer shaft; 82. Inner shaft; 83. Sun gear; 84. Gear ring; 85. Planet gears; 86. Planet carrier. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Please see Figures 1-9 This invention provides a technical solution: Current milling cutter grinding machines employ a method of purging after shutdown or actively guiding debris discharge via high-pressure airflow or negative pressure devices. This method has several problems, including metal powder adhering to the filter structure, which can reduce filtration efficiency or even cause motor overload and burnout. To prevent this, the metal powder adhering to the filter structure needs to be replaced periodically. Failure to replace it in time results in the aforementioned reduced filtration efficiency and motor overload problems, necessitating the installation of a timed replacement alarm device. Furthermore, when the high-pressure airflow or negative pressure device stops, the metal powder does not remain adhered to the filter structure and can easily disperse into the environment. Based on these issues, a milling cutter grinding machine integrating pneumatic debris handling is proposed. Figures 1-3 As shown, it includes a grinding base 1, a positioning shell 2, and a grinding wheel 3 inside the positioning shell 2, and includes a negative pressure generating part, a metal frame 6, a filter layer 7, and a transmission part 8.

[0051] The negative pressure generating unit is installed on the upper end of the grinding base 1. The negative pressure generating unit generates negative pressure by an external air pump.

[0052] The metal frame 6 has an integral bending rod 63, which is rotatably installed in the negative pressure generating part. The "V" opening of the bending rod 63 faces upward and is in contact with the deformation layer 71 of the filter layer 7. The shape of the deformation layer 71 remains stable.

[0053] The filter layer 7 has a ring of deformation layer 71, which is fixed to the upper end of the metal frame 6 and located at the lower end of the grinding wheel 3. The metal powder generated by the grinding wheel 3 moves downward under the action of negative pressure and adheres to the filter layer 7, preventing the metal powder from moving outward from the positioning shell 2. The filter layer 7 adsorbs the powder under the action of negative pressure and the deformation layer 71 deforms. The deformation layer 71 recovers and holds the powder. When the filter layer 7 is affected by negative pressure, the deformation layer 71 pushes the metal frame 6 downward, and the bending rod 63 opens. While the deformation layer 71 moves downward, it is also opened by the deformation action of the bending rod 63. At the same time, the filter layers 7 located on both sides of the deformation layer 71 will tilt and face the deformation layer 71. When the deformation layer 71 moves downward and opens, the metal powder is concentrated in the deformation layer 71 due to the negative pressure and the influence of the inclined plane, so that the rest of the filter layer 7 can maintain the filtering capacity and avoid affecting the air pump. When the deformation layer 71 is not under the negative pressure, the metal frame 6 will recover. The metal powder inside the deformation layer 71 is clamped by the recovery action of the deformation layer 71. The clamped metal powder is squeezed against each other to minimize the amount of flying.

[0054] The transmission unit 8 is connected between the grinding base 1 and the grinding wheel 3, and is connected to the metal frame 6 on the outside. The drive bending rod 63 cooperates with the negative pressure generating unit to produce intermittent vibration. The planetary gear set inside the transmission unit 8 drives the metal frame 6 and the filter layer 7 to rotate. When the milling cutter is grinding, the position of the milling cutter is kept still, and the generated metal powder moves downward. The rotating filter layer 7 can make the metal powder circumferentially distributed on its upper end, avoiding the metal powder from being too concentrated and clogging the filter layer 7 in some places.

[0055] Specifically, the positioning shell 2 is located at the upper end of the grinding base 1. The grinding base 1 has a motor inside, which is used to drive the rotation of the grinding wheel 3 inside the positioning shell 2. The positioning shell 2 is a combination of a chuck and a collet. Its function is to achieve precise correction and fixation of the milling cutter by cooperating with the grinding base 1. The driving force generated by the motor drives the grinding wheel 3 to rotate and also drives the transmission part 8. The transmission part 8 realizes the rotation of the metal frame 6 and the filter layer 7.

[0056] It should be noted that filter layer 7 uses paper, non-woven fabric, or other fibrous materials as a flexible substrate, with a surface coated with a 3-200μm micron-scale structure formed by nanomaterial clusters such as titanium dioxide (TiO2) and zinc oxide (ZnO). The nanomaterials are fixed by organic long-chain polymers, forming a flexible and foldable composite layer. The flexible fibrous substrate, such as non-woven fabric, is inherently elastic; after being superimposed with the porous structure of nanoclusters, it can undergo localized deformation under pressure or airflow, dynamically adjusting the pore distribution and enhancing the metal powder capture efficiency. It should also be noted that after filter layer 7 adsorbs metal powder, some metal powder is captured by filter layer 7, but when metal powder accumulates on filter layer 7, it becomes difficult to capture. Therefore, the uncaptured metal powder can move into the deformation layer 71. Furthermore, under negative pressure, the positioning shell 2 always faces inwards, making it difficult for even locally dispersed metal powder to move outwards from the positioning shell 2, ensuring metal powder collection and preventing environmental impact.

[0057] like Figure 3 and Figure 4 The negative pressure generating part includes a support disk 4 and an adsorption layer 5;

[0058] The support plate 4 is fixed on the upper end of the grinding base 1, and its upper end is fixed to the positioning shell 2. A processing cavity 41 is formed inside. A chamber is formed between the support plate 4 and the positioning shell 2. The lower inner wall of the processing cavity 41 has a through suction port 43.

[0059] The adsorption layer 5 is fixed to the lower end of the support plate 4, and a connecting pipe 51 connected to the air pump is connected to the outside to generate negative pressure on the adsorption port 43.

[0060] Specifically, there are several adsorption ports 43 distributed along the circumference of the support disk 4. The lower ends of all adsorption ports 43 are connected to the adsorption layer 5. When a negative pressure is generated, the fluid is dispersed into finer streams as it passes through, avoiding excessively high local flow velocities or turbulence. The adsorption ports 43 disperse the concentrated suction force over a larger area, preventing excessive local stress from causing deformation or damage to the filter layer 7. The negative pressure, through suction, forces the airflow containing metal powder through the filter layer 7, where the metal powder is trapped due to inertia or diffusion effects. The higher the negative pressure, the higher the adsorption efficiency. It is necessary to balance energy consumption and the resistance of the filter layer 7. The negative pressure generated by the air pump on the filter layer 7 is typically between -10 kPa and -60 kPa, which can be adjusted by those skilled in the art according to the specific equipment type and application scenario.

[0061] like Figures 5-7 As shown, Figure 6 To restore the bent rod 63 to its original state. Figure 7 The dashed line represents the bent rod 63 extending downwards and into the adsorption port 43. The metal frame 6 includes two inner and outer ring frames 61 and multiple crossbars 62.

[0062] Both sides of the processing chamber 41 are fixed with retaining rings 42, and two ring holders 61 are respectively attached to the retaining rings 42 on both sides.

[0063] Multiple crossbars 62 are fixed between two ring frames 61 and are distributed in a circular pattern. The middle section of the crossbars 62 is integrally formed with the bent bar 63. Under negative pressure, the crossbars 62 and the bent bar 63 extend downward into the adsorption port 43. When rotated, they move out of the adsorption port 43 and produce vibration.

[0064] Specifically, the retaining rings 42 on the inner walls of both sides of the processing cavity 41 support the two ring frames 61. The two ring frames 61 are inner and outer sleeves connected by multiple crossbars 62, which form the metal frame 6. It should be noted that the two ring frames 61 are secured on the inner and outer retaining rings 42. The outer side of the outer ring frame 61 is constrained, and the inner side of the inner ring frame 61 is constrained, which significantly improves the resistance to deformation. The material of the two ring frames 61 is steel.

[0065] The bent rod 63 is V-shaped. Both the crossbar 62 and the bent rod 63 are elastic. The upper edge of the suction port 43 is rounded. Under negative pressure, only the crossbar 62 and the bent rod 63 deform. The crossbar 62 and the bent rod 63 are made of spring steel. It should also be noted that the lower end of the V-shaped bent rod 63 will move downward under negative pressure and squeeze against the lower inner wall of the processing chamber 41. Furthermore, during rotation, it will pass through the suction port 43, causing the bent rod 63 to... The lower end of the "V" shape extends into the adsorption port 43, changing the deformation state of the crossbar 62 and the bending bar 63, and also changing the state of the filter layer 7 and the deformation layer 71. When the bending bar 63 passes through the adsorption port 43, it vibrates. The above two situations cause the metal powder on the filter layer 7 to concentrate in the deformation layer 71. It should be noted that the circular adsorption port 43 has a rounded edge transition, so the bending bar 63 will not produce abrupt vibration when it passes through, making the movement smoother and preventing the metal powder from being thrown up.

[0066] The number of adsorption ports 43 in the circumferential direction is the same as the number of bending rods 63, and their positions are opposite, so that each bending rod 63 can move to the corresponding adsorption port 43 at the same time during rotation, causing the overall filter layer 7 and deformation layer 71 to deform and shake, thus accelerating the concentration of metal powder.

[0067] The filter layer 7 is in the shape of rings, and the cross-section of the deformation layer 71 is "V" shaped, which is attached to the upper end of the bending rod 63. The inner and outer edges of the filter layer 7 are fixed to the two ring frames 61 respectively to prevent the filter layer 7 from moving as a whole.

[0068] The transition between the deformation layer 71 and the filter layer 7 has multiple folds. The deformation layer 71 is equidistant from the inner and outer diameters of the filter layer 7. Under negative pressure, the deformation layer 71 moves downward, and the filter layer 7 is stretched. The folds cause the filter layer 7 to tilt downward, which can generate deformation and prevent the filter layer 7 from being torn. The equidistant distance between the deformation layer 71 and the inner and outer diameters of the filter layer 7 is to ensure that the parts of the filter layer 7 located on both the inner and outer sides of the deformation layer 71 are tilted to collect metal powder. After the filter layer 7 is deformed under negative pressure, metal powder will also be present in the folded parts, but the accumulation can be minimized under shaking, so it will not affect the restoration of the folds.

[0069] like Figure 8 As shown, the transmission unit 8 includes an outer shaft 81, an inner shaft 82, and a planetary gear set;

[0070] The outer shaft 81 is fixed to the grinding seat 1;

[0071] The inner shaft 82 passes through the outer shaft 81 and is fixed to the output end inside the grinding seat 1. The outer end of the inner shaft 82 is detachably fixed to the grinding wheel 3.

[0072] The planetary gear set is mounted on the outer shaft 81 and is used to drive the inner shaft 82 and the metal frame 6.

[0073] It should be noted that the inner shaft 82 is connected to the output end of the motor to drive the grinding wheel 3 to rotate. The outer side of the inner shaft 82 drives the metal frame 6 to rotate through the planetary gear set. The planetary gear set achieves the effect of speed reduction to prevent the metal frame 6 from rotating too fast and affecting the adsorption of metal powder on the filter layer 7.

[0074] The planetary gear set includes: a sun gear 83, planet gears 85, and a ring gear 84;

[0075] The sun gear 83 is fixedly sleeved with the inner shaft 82;

[0076] Planetary gear 85 meshes with sun gear 83 and is located on the upper end of outer shaft 81. Planet carrier 86 is mounted on the upper end of planetary gear 85. A connecting rod 64 that is detachably fixed to metal frame 6 is fixed on the outside of planet carrier 86. The function of connecting rod 64 is to fix inner and outer ring frame 61 to prevent ring frame 61 from deforming, and at the same time drive ring frame 61 to rotate.

[0077] The gear ring 84 is integrally formed on the upper end of the outer shaft 81, and its inner side meshes with the planetary gear 85.

[0078] The grinding wheel speed of a milling cutter grinding machine varies depending on the specific model and application. However, the grinding wheel speed of a common milling cutter grinding machine is concentrated in the range of 4400~6000 rpm. Therefore, the speed of the metal frame 6 and filter layer 7 is too high. The speed of the metal frame 6 and filter layer 7 can be greatly reduced by using a planetary gear set to prevent the concentrated metal powder from being dispersed outward. It should be noted that the speed can be adjusted according to the required speed by using a planetary gear set, and a multi-stage planetary gear set can be configured to reduce the speed.

[0079] It should also be noted that during the high-speed rotation of grinding wheel 3, the generated metal powder will not move inward to the planetary gear set due to centrifugal force.

[0080] like Figure 9 The diagram shows a partial top view of the filter layer 7. The filter layer 7 includes an inner filter layer 701 and an outer filter layer 702. A deformation layer 71 is integrally disposed between the inner filter layer 701 and the outer filter layer 702. The outer ends of the inner filter layer 701 and the outer filter layer 702 are respectively fixed to the inner and outer ring frames 61. The filter layer 7 is divided into inner and outer layers, which are connected in the middle by the deformation layer 71, so that the filter layer 7 forms a complete circle. The deformation layer 71 is equidistant from the edges of the inner filter layer 701 and the outer filter layer 702. When the filter layer 7 is deformed by negative pressure, the deformation layer 71 is located at the bottom. The inner filter layer 701 and the outer filter layer 702 on the inner and outer sides are inclined toward the deformation layer 71, and the inclination is similar. The metal powder accumulated on the inner filter layer 701 and the outer filter layer 702 moves along the inclined surface into the deformation layer 71.

[0081] The pleats include inner pleats 703, outer pleats 704, and pleat connecting portions 705. The inner pleats 703 and outer pleats 704 are located on the inner filter layer 701 and outer filter layer 702, respectively. Both inner pleats 703 and outer pleats 704 extend towards the deformation layer 71. The pleat connecting portion 705 is located on the surface of the deformation layer 71, with its two ends connected to the inner pleats 703 and outer pleats 704, respectively. When the filter layer 704 is deformed under negative pressure, the inner pleats 703 and outer pleats 704 are in a state of compression and tension, respectively. One side of the "V" shape of the pleat connecting portion 705 is also compressed, while the other side... When the filter layer 7 is stretched, it should be noted that when the filter layer 7 deforms, the inner folds 703 are squeezed and the outer folds 704 are stretched. The fold connection part 705 located in the deformation layer 71 is stretched on the outside and squeezed on the inside. The folds that are squeezed on the inside will undergo concave or convex deformation. During the rotation of the filter layer 7, the deformation position of the fold connection part 705 will move to the metal powder jamming in the deformation layer 71. Even if metal powder accumulates in the deformation layer 71, it will not cause a large displacement during the rotation of the filter layer 7, thus reducing the dispersion of metal powder.

[0082] The working principle of this invention is as follows: When the milling cutter is ground by the milling cutter grinder, it needs to contact the grinding wheel 3 and generate metal powder. Based on this, the metal powder needs to be processed. With the operation of the external air pump, a negative pressure is generated inside the adsorption layer 5, and multiple adsorption ports 43 generate an adsorption airflow. The outer side of the processing chamber 41 is blocked by the adsorption layer 5. The overall airflow enters from the positioning shell 2 and then moves out from the connecting pipe 51. The metal powder moves with the airflow and is filtered by the adsorption layer 5.

[0083] Based on the above description, the generated negative pressure stretches the filter layer 7 downward. Due to the elasticity of the metal frame 6 and the presence of the bending rod 63, the filter layer 7 has pleats and a deformation layer 71, causing the deformation layer 71 of the filter layer 7 to move downward and expand. This causes the portions of the filter layer 7 located on both sides of the deformation layer 71 to tilt towards the deformation layer 71. The metal powder adsorbed by the filter layer 7 and the deformation layer 71 can concentrate as much as possible inside the deformation layer 71, reducing the impact on the filtration effect of the filter layer 7. Afterward, without the negative pressure, the filter layer 7 and the deformation layer 71 are restored by the resetting action of the metal frame 6. The deformation layer 71 clamps the metal powder, preventing the metal powder from flying away in subsequent operations.

[0084] In addition, even after the metal powder is relatively concentrated, the remaining positions of the filter layer 7 can still maintain filtration. Even if the filtration effect is reduced, it still has a filtration function and will not directly affect the filtration effect. There is no need to precisely control the replacement time.

[0085] Through the transmission unit 8, while the grinding wheel 3 is rotating and grinding, the metal frame 6 and the filter layer 7 are driven to rotate. Under the action of negative pressure, the bending rod 63 moves downward and deforms. The end of the bending rod 63 passes through the adsorption port 43 and can extend into the adsorption port 43. Therefore, during rotation, the metal frame 6 continuously moves into and out of the adsorption port 43, realizing intermittent shaking. The filter layer 7 also realizes intermittent shaking, and the "V" state of the filter layer 7 and the deformation layer 71 undergoes a dynamic change, which can continuously concentrate the generated metal powder into the deformation layer 71 for further concentration. It should be noted that the shaking generated under the action of negative pressure does not cause the metal powder to fly away.

[0086] The planetary gear set provides a speed change function, stabilizing the rotation speed of the metal frame 6 and the filter layer 7, and preventing the metal powder from flying outward due to excessive rotation.

[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0088] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A milling cutter grinding machine with integrated pneumatic chip treatment, comprising a grinding base, a positioning shell, and a grinding wheel inside the positioning shell, characterized in that, include: The negative pressure generating unit is installed on the upper end of the grinding base; The negative pressure generating part includes: a support plate, fixed to the upper end of the grinding seat, with its upper end fixed to the positioning shell, and a processing cavity formed inside, with a through adsorption port on the lower inner wall of the processing cavity; and an adsorption layer, fixed to the lower end of the support plate, with a connecting pipe connected to an air pump on its outer side, used to generate negative pressure on the adsorption port. The metal frame has an integrated bending rod that is rotatably installed inside the negative pressure generating part; The metal frame includes: inner and outer ring frames, with retaining rings fixed on the inner walls of both sides of the processing chamber, and the two ring frames respectively secured to the retaining rings on both sides; multiple horizontal bars, fixed between the two ring frames and distributed in a circular pattern, the middle section of the horizontal bars and the bending rod are integrally formed, the horizontal bars and the bending rod extend downward into the adsorption port under negative pressure, and move out of the adsorption port to generate vibration when rotated; the bending rod is V-shaped, the horizontal bars and the bending rod are both elastic, and the upper edge of the adsorption port is rounded; The filter layer has a ring of deformation layer, which is fixed to the upper end of the metal frame and located at the lower end of the grinding wheel. Under negative pressure, the filter layer adsorbs the powder and the deformation layer deforms. The deformation layer recovers and clamps the powder. The filter layer is ring-shaped and the cross-section of the deformation layer is "V" shaped, which is attached to the upper end of the bending rod. The transmission unit is connected between the grinding seat and the grinding wheel, and its outer side is connected to the metal frame. It drives the bending rod to cooperate with the negative pressure generating unit to produce intermittent vibration.

2. The milling cutter grinding machine with integrated pneumatic chip processing according to claim 1, characterized in that: The number of suction ports in the circumferential direction is the same as the number of bent rods, and their positions are opposite.

3. The milling cutter grinding machine with integrated pneumatic chip processing according to claim 1, characterized in that: The transition between the deformation layer and the filter layer has multiple folds, and the deformation layer is equidistant from the inner and outer diameters of the filter layer.

4. The milling cutter grinding machine with integrated pneumatic chip processing according to claim 1, characterized in that: The transmission unit includes: The outer shaft is fixed to the grinding base; The inner shaft passes through the outer shaft and is fixed to the output end inside the grinding seat; the outer end of the inner shaft is detachably fixed to the grinding wheel. Planetary gear sets, mounted on the outer shaft, are used to drive the connection between the inner shaft and the metal frame.

5. The milling cutter grinding machine with integrated pneumatic chip processing according to claim 4, characterized in that: The planetary gear set includes: The sun gear is fixedly sleeved with the inner shaft; The planetary gear meshes with the sun gear and is located at the upper end of the outer shaft. A planet carrier is attached to the upper end of the planetary gear, and a connecting rod that can be detachably fixed to the metal frame is fixed to the outside of the planet carrier. The gear ring is integrally formed on the upper end of the outer shaft, and its inner surface meshes with the planetary gears.

6. The milling cutter grinding machine with integrated pneumatic chip processing according to claim 3, characterized in that: The filter layer includes an inner filter layer and an outer filter layer. A deformation layer is integrally disposed between the inner filter layer and the outer filter layer. The outer ends of the inner filter layer and the outer filter layer are respectively fixed to the inner and outer ring frames. The folds include inner folds, outer folds, and fold connecting parts. The inner folds and outer folds are located on the inner filter layer and outer filter layer, respectively. Both the inner folds and outer folds extend towards the deformation layer. The fold connecting parts are located on the surface of the deformation layer, and their two ends are connected to the inner folds and outer folds, respectively. When the filter layer is deformed under negative pressure, the inner folds and outer folds are in a state of compression and tension, respectively. One side of the "V" shape of the fold connecting parts is also compressed, and the other side is stretched.

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