A milling and grinding machine capable of chamfering and deburring workpieces

Abstract

The present application relates to the technical field of milling and drilling machine, in particular to a milling and drilling machine capable of polishing and flattening workpiece chamfer, which comprises a polishing support seat, further comprising: a supporting rod connected with the polishing support seat, and an adjusting connecting plate rotatably installed on the supporting rod; a polishing control box, wherein a polishing piece is further arranged in the polishing control box; an angle adjusting assembly connected with the polishing support seat and the adjusting connecting plate respectively; and a polishing control mechanism located in the polishing control box and connected with the polishing piece, wherein the polishing control mechanism comprises a transmission assembly, a torsion assembly and a contact monitoring assembly; the milling and drilling machine capable of polishing and flattening workpiece chamfer can ensure sufficient pressure between the polishing piece and the workpiece chamfer surface, avoid the polishing piece being too tight or too loose in contact with the workpiece chamfer surface, and is beneficial to improve the polishing effect on the workpiece chamfer.

Description

Technical Field

[0001] This invention relates to the field of milling and grinding machine technology, specifically a milling and grinding machine that can grind and smooth the chamfers of workpieces. Background Technology

[0002] Milling and drilling machines are mainly composed of a bed, spindle, worktable, electrical components, CNC system, and protective equipment. They are used for secondary processing after automatic lathes. They can be modified to perform processes such as milling flat grooves, and can also be equipped with drilling, tapping, chamfering, and other processes. They are also called composite machines and are special-purpose machine tools. At the same time, they can also be used for milling grooves in various metal materials, plastic materials, and other non-standard metal materials.

[0003] Currently, milling and grinding machines chamfer workpieces using cutting tools. However, the chamfered surfaces of some workpieces are not very smooth and require grinding. During the grinding process, the degree of contact between the grinding tool and the workpiece greatly affects the grinding effect. If the contact is not tight enough, the grinding effect is poor and the smoothness of the chamfered surface is affected. On the other hand, if the contact is too tight, it can easily cause damage to the workpiece surface and affect the life of the grinding tool. Therefore, in view of the above situation, there is an urgent need to develop a milling and grinding machine that can grind the chamfered edges of workpieces to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of this invention is to provide a milling and grinding machine that can grind and smooth the chamfer of a workpiece, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A milling and grinding machine for smoothing the chamfer of a workpiece includes a grinding support base and further includes:

[0007] A support rod is connected to the grinding support base, and an adjusting plate is rotatably mounted on the support rod;

[0008] A grinding control box, one end of which is connected to the adjusting connecting plate, and the other end of which has an opening. The grinding control box also contains a grinding component, one end of which extends through the opening to the outside of the grinding control box.

[0009] An angle adjustment assembly, wherein the angle adjustment assembly is connected to the grinding support and the adjustment connecting plate respectively; and

[0010] A grinding control mechanism is located inside the grinding control box and connected to the grinding workpiece. The grinding control mechanism includes a transmission component, a torque component, and a contact monitoring component.

[0011] The transmission assembly is connected to the grinding control box and the grinding part respectively. The transmission assembly is also connected to the torque assembly and the contact monitoring assembly respectively. The torque assembly and the contact monitoring assembly are both connected to the inner wall of the grinding control box.

[0012] As a further aspect of the present invention: the transmission assembly includes:

[0013] A support gear is rotatably connected to the inner wall of the grinding control box via a rotating shaft and meshes with the inner wall of the grinding component.

[0014] A rotating shaft is rotatably connected to the grinding control box, and the rotating shaft is also connected to the torque assembly and the contact monitoring assembly respectively;

[0015] Gear, the gear being located on the rotating shaft; and

[0016] An internal toothed belt is wound around the gear and meshes with the gear, and both ends of the internal toothed belt are detachably connected to both ends of the grinding component.

[0017] As a further aspect of the present invention, it also includes a limiting member, which is fixedly connected to the inner wall of the grinding control box, and the limiting member is also sleeved on the internal toothed belt and slidably connected to the internal toothed belt.

[0018] As a further aspect of the present invention: the torque component includes:

[0019] A torque box is connected to the inner wall of the grinding control box, and a rotating shaft passes through the torque box, the rotating shaft being rotatably connected to the torque box.

[0020] A rotating sleeve is rotatably mounted inside the torque box, and the rotating sleeve is fitted with the rotating shaft and rotatably connected to the rotating shaft.

[0021] A torsion spring, wherein the torsion spring is sleeved on the rotating shaft, and one end of the torsion spring is connected to the rotating shaft, and the other end of the torsion spring is connected to the rotating sleeve; and

[0022] A torque adjustment unit is connected to the grinding control box and the rotating sleeve respectively.

[0023] As a further aspect of the present invention: the torque adjustment unit includes:

[0024] A positioning element, the positioning element being located on the inner wall of the grinding control box;

[0025] An adjustment knob shaft passes through the grinding control box and the positioning component, and is rotatably connected to the grinding control box and the positioning component; and

[0026] A transmission component, one end of which is connected to the adjusting knob shaft, and the other end of which passes through the torque box and is connected to the rotating sleeve.

[0027] As a further aspect of the present invention: the contact monitoring component includes:

[0028] A positioning control box is connected to the inner wall of the grinding control box, and the rotating shaft passes through the positioning control box, and the rotating shaft is rotatably connected to the positioning control box.

[0029] A hexagonal positioning plate, detachably installed inside the positioning control box, wherein multiple positioning teeth and detectors are distributed on the hexagonal positioning plate; and

[0030] A rotating toothed plate is connected to the rotating shaft and is detachably connected to the positioning teeth. The rotating toothed plate is also installed in conjunction with the detector.

[0031] As a further aspect of the present invention, it also includes: a dust collection filter cartridge, one end of which is detachably connected to the adjusting connecting plate, and a dust collection air pipe is installed on the other end of the dust collection filter cartridge;

[0032] A connecting pipe, which is installed inside the grinding control box, and one end of the connecting pipe is connected to the dust collection filter cartridge through an air hole in the adjusting plate; and

[0033] A cleaning component is detachably connected to the inner wall of the grinding control box and slidably connected to the grinding component.

[0034] As a further aspect of the present invention: the angle adjustment component includes:

[0035] The telescopic cylinder has its two ends hinged to the grinding support and the dust collection filter cartridge, respectively.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] When grinding the chamfer on a workpiece, the cutting tool on the milling machine can be removed, and the grinding support can be installed on the milling machine. Under the control of the CNC system on the milling machine, the grinding support can move on the X and Y axes. Alternatively, a hydraulic cylinder can be installed between the grinding support and the milling machine to control the position of the grinding support and grinding equipment, which will not be elaborated on here. After the grinding support is installed, first, start the angle adjustment component, which will drive the adjustment connecting plate and the grinding control box to rotate on the support rod. This allows the grinding part to be adjusted according to the inclination angle of the chamfer on the workpiece, so that the grinding part is completely in contact with the chamfer surface of the workpiece. The grinding control box is equipped with a cover, which allows the operator to remove the cover to perform maintenance and repair work on the equipment inside the grinding control box. When the grinding part contacts the chamfer surface of the workpiece, the workpiece will rotate on the worktable of the milling machine. During the rotation of the workpiece, friction will be generated between the workpiece and the grinding part. In this system, the grinding component can be sandpaper mounted on a toothed belt. A torque assembly, whose torque can be set according to actual needs, is used. Under the resistance of the torque assembly and the linkage of the transmission assembly, when the pressure between the end of the grinding component and the chamfered surface of the workpiece is insufficient, the friction between the grinding component and the chamfered surface is insufficient to rotate the grinding component. At this point, a CNC system or hydraulic cylinder can be used to push the grinding support seat, causing the grinding component to press firmly against the chamfered surface of the workpiece until the pressure between the grinding component and the chamfered surface reaches a preset value. The workpiece then overcomes the torque of the torque assembly and rotates the grinding component through the transmission assembly. Simultaneously, a contact monitoring component is activated, ensuring sufficient pressure between the grinding component and the chamfered surface of the workpiece. This prevents the contact from being too tight or too loose, thus improving the grinding effect on the workpiece chamfer and is worthy of promotion. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of the grinding support portion in an embodiment of the present invention.

[0039] Figure 2 This is a schematic diagram of the front cross-sectional structure of the grinding control box in an embodiment of the present invention.

[0040] Figure 3 This is a top sectional view of the grinding control box in an embodiment of the present invention.

[0041] Figure 4 This is a schematic diagram of the front cross-sectional structure of the torque box part in an embodiment of the present invention.

[0042] Figure 5 This is a top sectional view of the positioning control box in an embodiment of the present invention.

[0043] In the diagram: 1-Grinding support base, 2-Telescopic cylinder, 3-Suction pipe, 4-Suction filter cartridge, 5-Adjusting connecting plate, 6-Support rod, 7-Grinding control box, 8-Cap, 9-Grinding component, 10-Adjusting knob shaft, 11-Positioning component, 12-Transmission component, 13-Torque box, 14-Rotating shaft, 15-Gear, 16-Positioning control box, 17-Internal toothed belt, 18-Limiting component, 19-Rotating shaft, 20-Connecting pipe, 21-Cleaning component, 22-Support gear, 23-Port, 24-Rotating sleeve, 25-Torsion spring, 26-Hexagonal positioning plate, 27-Detector, 28-Rotating toothed plate, 29-Positioning tooth. Detailed Implementation

[0044] 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.

[0045] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0046] Please see Figures 1-5 The present invention provides a milling and grinding machine for grinding and smoothing the chamfer of a workpiece, comprising a grinding support 1, and further comprising:

[0047] Support rod 6, which is connected to the grinding support base 1, and an adjusting connecting plate 5 is rotatably mounted on the support rod 6;

[0048] A grinding control box 7 is provided. One end of the grinding control box 7 is connected to the adjusting connecting plate 5. The other end of the grinding control box 7 is provided with a through-hole 23. A grinding component 9 is also provided inside the grinding control box 7. One end of the grinding component 9 extends to the outside of the grinding control box 7 through the through-hole 23.

[0049] An angle adjustment assembly, which is connected to the grinding support 1 and the adjustment connecting plate 5 respectively; and

[0050] A grinding control mechanism is located inside the grinding control box 7 and connected to the grinding component 9. The grinding control mechanism includes a transmission component, a torque component, and a contact monitoring component.

[0051] The transmission assembly is connected to the grinding control box 7 and the grinding component 9 respectively. The transmission assembly is also connected to the torque assembly and the contact monitoring assembly respectively. The torque assembly and the contact monitoring assembly are both connected to the inner wall of the grinding control box 7.

[0052] When grinding the chamfer on a workpiece is required, the cutting tool on the milling machine can be removed, and the grinding support 1 can be installed on the milling machine. Under the control of the CNC system on the milling machine, the grinding support 1 can move on the X and Y axes. Alternatively, a hydraulic cylinder can be installed between the grinding support 1 and the milling machine to control the position of the grinding support 1 and the grinding equipment. This will not be elaborated on here. After the grinding support 1 is installed, firstly, the angle adjustment component is activated, which drives the adjustment connecting plate 5 and the grinding control box 7 to rotate on the support rod 6. This allows the grinding part 9 to be adjusted according to the inclination angle of the chamfer on the workpiece, so that the grinding part 9 is completely in contact with the chamfer surface of the workpiece. The grinding control box 7 is equipped with a cover 8, which allows the operator to remove the cover 8 to perform maintenance and repair work on the equipment inside the grinding control box 7. When the grinding part 9 contacts the chamfer surface of the workpiece, the workpiece will rotate on the worktable of the milling machine. During the rotation of the workpiece, friction will occur between the workpiece and the grinding part 9. The grinding element 9 can be in the form of sandpaper, which is mounted on a toothed belt. A torque assembly, whose torque can be set according to actual needs, is used. Under the resistance of the torque assembly and the linkage of the transmission assembly, when the pressure between the end of the grinding element 9 and the chamfered surface of the workpiece is insufficient, the friction between the grinding element 9 and the chamfered surface is insufficient to rotate the grinding element 9. At this time, through a CNC system or hydraulic cylinder, the grinding support 1 can be pushed to press the grinding element 9 firmly against the chamfered surface of the workpiece until the pressure between the grinding element 9 and the chamfered surface of the workpiece reaches a preset value. The workpiece will then overcome the torque of the torque assembly and rotate the grinding element 9 through the transmission assembly. Simultaneously, the contact monitoring assembly will be activated, ensuring sufficient pressure between the grinding element 9 and the chamfered surface of the workpiece, preventing excessively tight or loose contact. This improves the grinding effect on the workpiece chamfer and is worthy of promotion.

[0053] In one embodiment of the present invention, please refer to Figures 1-3 The transmission assembly includes:

[0054] A support gear 22 is rotatably connected to the inner wall of the grinding control box 7 via a rotating shaft 19, and meshes with the inner wall of the grinding component 9.

[0055] A rotating shaft 14 is rotatably connected to the grinding control box 7, and the rotating shaft 14 is also connected to the torque assembly and the contact monitoring assembly respectively;

[0056] Gear 15, the gear 15 being located on the rotating shaft 14; and

[0057] An internal toothed belt 17 is wound around the gear 15 and meshes with the gear 15. Both ends of the internal toothed belt 17 are detachably connected to both ends of the grinding component 9.

[0058] Please see Figure 2 It also includes: a limiting member 18, which is fixedly connected to the inner wall of the grinding control box 7, and the limiting member 18 is also sleeved on the internal toothed belt 17 and slidably connected to the internal toothed belt 17.

[0059] When the pressure between the grinding part 9 and the chamfered surface of the workpiece is large enough, the workpiece will drive the grinding part 9 to rotate. The teeth on the grinding part 9 mesh with the support gear 22, thereby driving the support gear 22 and the rotating shaft 19 to rotate synchronously. When the grinding part 9 moves, it will pull the internal gear belt 17 to drive the gear 15 and the rotating shaft 14 to rotate. The internal gear belt 17 has a part without teeth, and the toothless part is fitted into the limiting member 18. The limiting member 18 can be in the form of a square frame, which is fitted onto the internal gear belt 17, and has a square frame on its upper and lower walls. The distance between the rubber pad and the wall of the internal toothed belt 17 can be controlled by an electromagnet. When the rubber pad contacts the toothed part, it will limit the internal toothed belt 17. Of course, the limiting member 18 can also adopt other existing structures, as long as it can play a limiting role. It will not be elaborated on here. By limiting the internal toothed belt 17 through the limiting member 18, the torque component can always be in a state of torque on the rotating shaft 14. After grinding, it can prevent the rotating shaft 14 from undergoing a large reverse rotation when returning to the initial position under the torque of the torque component.

[0060] In one embodiment of the present invention, please refer to Figure 2 and Figure 4 The torque assembly includes:

[0061] Torque box 13, the torque box 13 is connected to the inner wall of the grinding control box 7, and the rotating shaft 14 passes through the torque box 13, the rotating shaft 14 is rotatably connected to the torque box 13;

[0062] Rotating sleeve 24, the rotating sleeve 24 is rotatably installed inside the torque box 13, and the rotating shaft 14 is sleeved inside the rotating sleeve 24 and rotatably connected to the rotating shaft 14;

[0063] A torsion spring 25 is sleeved on the rotating shaft 14, with one end of the torsion spring 25 connected to the rotating shaft 14 and the other end connected to the rotating sleeve 24; and

[0064] A torque adjustment unit is connected to the grinding control box 7 and the rotating sleeve 24 respectively.

[0065] Please see Figure 1 , Figure 2 and Figure 4 The torque adjustment unit includes:

[0066] Positioning element 11, which is located on the inner wall of the grinding control box 7;

[0067] An adjustment knob shaft 10 passes through the grinding control box 7 and the positioning member 11, and is rotatably connected to the grinding control box 7 and the positioning member 11; and

[0068] The transmission component 12 has one end connected to the adjustment knob shaft 10, and the other end of the transmission component 12 passes through the torque box 13 and is connected to the rotating sleeve 24.

[0069] Please see Figure 2 and Figure 5 The contact monitoring component includes:

[0070] A positioning control box 16 is connected to the inner wall of the grinding control box 7, and the rotating shaft 14 passes through the positioning control box 16, and the rotating shaft 14 is rotatably connected to the positioning control box 16.

[0071] A hexagonal positioning plate 26, detachably installed within the positioning control box 16, is provided with multiple positioning teeth 29 and detectors 27.

[0072] The rotating toothed plate 28 is connected to the rotating shaft 14 and can be detachably connected to the positioning tooth 29. The rotating toothed plate 28 is also installed in conjunction with the detector 27.

[0073] When the rotating shaft 14 rotates, it drives the torsion spring 25 to rotate. The torsion spring 25 can also be in the form of a spring. Under the torque of the torsion spring 25, the rotating shaft 14 will only rotate when the grinding part 9 and the chamfered surface of the workpiece reach a certain pressure. Through the setting of the adjustment knob shaft 10 and the positioning part 11, when a larger pressure is required between the grinding part 9 and the chamfered surface of the workpiece, the adjustment knob shaft 10 and the positioning part 11 can be disengaged, and the adjustment knob shaft 10 can be manually rotated. The positioning part 11 can be a structure in which an electromagnet and a toothed plate cooperate to position the adjustment knob shaft 10. Of course, the positioning part 11 can also be other types. The positioning structure ensures that the adjusting knob shaft 10 remains stationary during operation. When the adjusting knob shaft 10 rotates, it drives the transmission component 12 to rotate. The transmission component 12 can employ a gear and internal gear belt combination structure, thereby driving the rotating sleeve 24 to rotate within the torque box 13. When the rotating sleeve 24 rotates, it drives the torsion spring 25 to twist in the opposite direction. Under the limiting action of the limiting component 18, the rotation of the rotating shaft 14 is prevented, thus raising the lower limit of the rotation of the rotating shaft 14. That is, the rotating shaft 14 can only rotate when the pressure between the grinding part 9 and the chamfered surface of the workpiece is greater. 4. When rotating, it can drive the rotating toothed plate 28 inside the positioning control box 16 to rotate. The rotating toothed plate 28 has two pairs of teeth of different lengths. When the rotating toothed plate 28 rotates a certain angle around the center of the hexagonal positioning plate 26, it will gradually contact the positioning teeth 29, with the shorter teeth contacting first. Thus, under the limiting action of the positioning teeth 29, the rotating shaft 14 stops rotating. When the rotating shaft 14 stops rotating, the grinding part 9 also stops rotating at the same time, and the grinding state begins. As the grinding progresses, the distance between the grinding part 9 and the chamfered surface of the workpiece will increase, and the pressure will decrease accordingly. To ensure the grinding quality, this... During operation, multiple detectors 27 are set up, which can be in the form of sensors and connected to the CNC system. When the pressure between the grinding part 9 and the chamfered surface of the workpiece decreases, the rotating shaft 14 will reverse under the drive of the torsion spring 25, and the rotating tooth plate 28 will rotate to the position of the detector 27. The detector 27 can be in the form of sensors. The angle of reversal of the rotating shaft 14 can be known through the corresponding detector 27. The larger the angle of reversal, the greater the thrust that needs to be applied to the grinding part 9, so that the pressure between the grinding part 9 and the chamfered surface of the workpiece can be replenished in time to ensure the quality of grinding.

[0074] In one embodiment of the present invention, please refer to Figure 1 and Figure 3 It also includes: a dust collection filter cartridge 4, one end of which is detachably connected to the adjusting connecting plate 5, and a dust collection air pipe 3 is installed on the other end of the dust collection filter cartridge 4;

[0075] A connecting pipe 20 is installed inside the grinding control box 7, and one end of the connecting pipe 20 is connected to the dust collection filter cartridge 4 through an air hole on the adjusting connecting plate 5; and

[0076] The cleaning component 21 is detachably connected to the inner wall of the polishing control box 7 and slidably connected to the polishing component 9.

[0077] Please see Figure 1 The angle adjustment component includes:

[0078] Telescopic cylinder 2, the two ends of which are respectively hinged to the grinding support seat 1 and the dust suction filter cartridge 4.

[0079] During the polishing process, the suction pipe 3 is connected to an external ventilation device. Through the suction filter 4, air holes, and connecting pipe 20, the cleaning part 21 can be in a negative pressure state. The cleaning part 21 can be in the form of a brush plate with soft brushes and multiple small holes connected to the connecting pipe 20. This allows for the cleaning and adsorption of debris adhering to the polishing part 9 during its movement, and the dust to be concentrated in the suction filter 4 for regular cleaning by staff. The telescopic cylinder 2 can also be used to adjust the angle of the polishing part 9 so that it is parallel and tightly attached to the chamfered surface of the workpiece.

[0080] In summary, when grinding the chamfer on a workpiece, the cutting tool on the milling machine can be removed, and the grinding support 1 can be installed on the milling machine. Under the control of the CNC system on the milling machine, the grinding support 1 can move on the X and Y axes. Alternatively, a hydraulic cylinder can be installed between the grinding support 1 and the milling machine to control the position of the grinding support 1 and the grinding equipment, which will not be elaborated further here. After the grinding support 1 is installed, firstly, the angle adjustment component is activated, which drives the adjustment connecting plate 5 and the grinding control box 7 to rotate on the support rod 6. This allows the grinding part 9 to be adjusted according to the inclination angle of the chamfer on the workpiece, so that the grinding part 9 is completely in contact with the chamfer surface of the workpiece. The grinding control box 7 is equipped with a cover 8, which allows the operator to remove the cover 8 to perform maintenance and repair work on the equipment inside the grinding control box 7. When the grinding part 9 contacts the chamfer surface of the workpiece, the workpiece will rotate on the worktable of the milling machine. During the rotation of the workpiece, it will interact with the grinding part. 9 generates friction. The grinding part 9 can be in the form of sandpaper, which is mounted on a toothed belt. A torque component is used, the torque of which can be set according to actual needs. Under the resistance of the torque component and the linkage of the transmission component, when the pressure between the end of the grinding part 9 and the chamfered surface of the workpiece is insufficient, the friction between the grinding part 9 and the chamfered surface is insufficient to drive the grinding part 9 to rotate. At this time, the grinding support 1 can be pushed by the CNC system or hydraulic cylinder to press the grinding part 9 against the chamfered surface of the workpiece until the pressure between the grinding part 9 and the chamfered surface of the workpiece reaches the preset value. The workpiece will overcome the torque of the torque component and drive the grinding part 9 to rotate through the transmission component. At the same time, the contact monitoring component will be activated to ensure sufficient pressure between the grinding part 9 and the chamfered surface of the workpiece, avoiding excessively tight or loose contact between the grinding part 9 and the chamfered surface of the workpiece, thereby improving the grinding effect of the chamfered surface of the workpiece.

[0081] It should be noted that, in this invention, unless otherwise explicitly specified and limited, the terms "sliding," "rotating," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to welded connections, bolted connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0082] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A milling and grinding machine for smoothing the chamfer of a workpiece, comprising a grinding support base, characterized in that, Also includes: A support rod is connected to the grinding support base, and an adjusting plate is rotatably mounted on the support rod; A grinding control box, one end of which is connected to the adjusting connecting plate, and the other end of which has an opening. The grinding control box also contains a grinding component, one end of which extends through the opening to the outside of the grinding control box. An angle adjustment assembly, wherein the angle adjustment assembly is connected to the grinding support and the adjustment connecting plate respectively; and A grinding control mechanism is located inside the grinding control box and connected to the grinding workpiece. The grinding control mechanism includes a transmission component, a torque component, and a contact monitoring component. The transmission assembly is connected to the grinding control box and the grinding part respectively. The transmission assembly is also connected to the torque assembly and the contact monitoring assembly respectively. The torque assembly and the contact monitoring assembly are both connected to the inner wall of the grinding control box. The transmission assembly includes a rotating shaft, which is rotatably connected to the grinding control box, and is also connected to the torque assembly and the contact monitoring assembly respectively. The torque assembly includes: a torque box, which is connected to the inner wall of the grinding control box, and the rotating shaft passes through the torque box, which is rotatably connected to the torque box; A rotating sleeve is rotatably mounted inside the torque box, and the rotating sleeve is fitted with the rotating shaft and rotatably connected to the rotating shaft. A torsion spring, wherein the torsion spring is sleeved on the rotating shaft, and one end of the torsion spring is connected to the rotating shaft, and the other end of the torsion spring is connected to the rotating sleeve; and A torque adjustment unit is connected to the grinding control box and the rotating sleeve respectively; The torque adjustment unit includes a positioning element located on the inner wall of the grinding control box; An adjustment knob shaft passes through the grinding control box and the positioning component, and is rotatably connected to the grinding control box and the positioning component; and A transmission component, one end of which is connected to the adjusting knob shaft, and the other end of which passes through the torque box and is connected to the rotating sleeve.

2. The milling and grinding machine for smoothing chamfers on workpieces according to claim 1, characterized in that, The transmission assembly also includes: A support gear is rotatably connected to the inner wall of the grinding control box via a rotating shaft and meshes with the inner wall of the grinding part. Gear, the gear being located on the rotating shaft; and An internal toothed belt is wound around the gear and meshes with the gear, and both ends of the internal toothed belt are detachably connected to both ends of the grinding component.

3. The milling and grinding machine for smoothing chamfers on workpieces according to claim 2, characterized in that, It also includes: a limiting member, which is fixedly connected to the inner wall of the grinding control box, and the limiting member is also sleeved on the internal toothed belt and slidably connected to the internal toothed belt.

4. The milling and grinding machine for smoothing chamfers on workpieces according to claim 2, characterized in that, The contact monitoring component includes: A positioning control box is connected to the inner wall of the grinding control box, and the rotating shaft passes through the positioning control box, and the rotating shaft is rotatably connected to the positioning control box. A hexagonal positioning plate, detachably installed inside the positioning control box, wherein multiple positioning teeth and detectors are distributed on the hexagonal positioning plate; and A rotating toothed plate is connected to the rotating shaft and is detachably connected to the positioning teeth. The rotating toothed plate is also installed in conjunction with the detector.

5. The milling and grinding machine for smoothing chamfers on workpieces according to any one of claims 1-3, characterized in that, Also includes: A dust collection filter cartridge, one end of which is detachably connected to the adjusting connecting plate, and a dust collection air pipe is installed on the other end of the dust collection filter cartridge; A connecting pipe, which is installed inside the grinding control box, and one end of the connecting pipe is connected to the dust collection filter cartridge through an air hole in the adjusting plate; and A cleaning component is detachably connected to the inner wall of the grinding control box and slidably connected to the grinding component.

6. The milling and grinding machine for smoothing chamfers on a workpiece according to claim 5, characterized in that, The angle adjustment component includes: The telescopic cylinder has its two ends hinged to the grinding support and the dust collection filter cartridge, respectively.

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