Multifunctional grinding machine for mold machining

Abstract

The invention relates to the technical field of grinding machine machining, in particular to a multifunctional grinding machine for mold machining, which comprises a numerical control grinding machine, a connecting assembly, a grinding wheel, a protective cover and the like, the numerical control grinding machine is connected with a protective cover; a connecting assembly is arranged in the protective cover; the connecting assembly is connected with a grinding wheel; two water flowing grooves are formed in the numerical control grinding machine; a narrow surface is arranged on the grinding wheel; and a wide surface is arranged on the grinding wheel. The grinding wheel state can be changed according to the area of the grinding face of the metal mold, the installation state of the grinding wheel does not need to be manually adjusted, and the grinding face orientation of the grinding wheel is adjusted; cooling liquid is pumped into the liquid inlet pipe through the external cooling pump, the cooling liquid enters the position between the conical plate and the grinding wheel along the liquid inlet pipe and then is sprayed out of the through hole, in the process, cooling and lubricating work is conducted through the cooling liquid flowing out from inside to outside, and it is guaranteed that the grinding wheel polishing metal mold is cooled and lubricated through the cooling liquid; the service life of the grinding wheel is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of grinder processing, in particular to a multifunctional grinder for mold processing. Background Art

[0002] A grinder is a machine tool used to fine-tune the surface of metal or other materials by removing material through the high-speed rotation of the grinding wheel to achieve the required dimensional accuracy and surface roughness.

[0003] During the grinding process, due to the different materials of the metal mold to be polished, the metal mold to be polished will be wet ground or dry ground by the grinding wheel. Wet grinding means that coolant will be sprayed on the grinding wheel and the metal mold to be polished during the grinding process, and the coolant will be used as a lubricating and cooling medium to reduce wear marks and improve smoothness, and reduce the temperature of the grinding wheel and the metal mold to be polished during grinding to increase the service life of the grinding wheel. Dry grinding does not have the above operations. When the side of the grinding wheel with a larger area is used to wet grind the metal mold to be polished, the position in the middle of the grinding wheel is difficult to contact with the coolant, which affects the cooling and grinding effects.

[0004] In addition, when dry grinding the metal mold to be polished, since no coolant is used in dry grinding, a large amount of dust and debris will be generated during the dry grinding process, and the debris will adhere to the metal mold to be polished. It is difficult to clean the debris adhering to the metal mold to be polished during the dry grinding process, resulting in the debris being ground flat on the metal mold to be polished by the grinding wheel, affecting the grinding quality of the metal mold to be polished by the grinding wheel. Summary of the invention

[0005] In order to overcome the disadvantages that when the side surface of the grinding wheel with a larger area is used for wet grinding of the metal mold to be grinded, the position in the middle of the grinding wheel is difficult to contact with the coolant, and at the same time, the debris will adhere to the metal mold to be grinded during the dry grinding process, and it is difficult to clean the debris adhered to the metal mold to be grinded during the dry grinding process, the present invention provides a multifunctional grinder for mold processing.

[0006] The technical scheme is as follows: A multifunctional grinder for mold processing includes a CNC grinder, a connecting assembly, a grinding wheel and a protective cover; the CNC grinder is connected to a protective cover; a connecting assembly is arranged inside the protective cover; a grinding wheel is connected to the connecting assembly; two water flow grooves are arranged on the CNC grinder; a narrow surface is arranged on the grinding wheel; a wide surface is arranged on the grinding wheel; a conical plate, a liquid inlet pipe, an air outlet pipe, a collecting bin, a driving part, a retaining ring and a filter screen are also included; a plurality of through holes are opened on the grinding wheel; a conical plate is connected to the connecting assembly; a through hole is arranged between the bottom surface of the conical plate and the grinding wheel The conical plate is connected with a conical plate liquid inlet pipe for providing coolant for cooling and lubrication; the conical plate is connected with an air outlet pipe for extracting toxic gases; the air outlet pipe and the liquid inlet pipe are symmetrically distributed on the conical plate; the outer side of the conical plate is detachably connected with a collecting bin for collecting metal debris; a collecting chamber is arranged in the collecting bin; two driving members are connected to the connecting assembly; a retaining ring is slidably connected to the collecting bin, and the retaining ring is used to open and close the channel; the retaining ring is detachably connected to the telescopic ends of the two driving members; a filter screen for intercepting metal debris is connected to the connecting assembly.

[0007] Preferably, the connecting assembly includes a moving unit, a servo motor, a connecting frame, a protective bin, a stepper motor, a fixed cylinder and a rotating shaft; the moving unit is arranged in the protective cover; the servo motor is connected to the moving unit; the moving unit is used to drive the servo motor to move up and down; the connecting frame is fixedly connected to the output end of the servo motor; the protective bin is fixedly connected to the connecting frame; the stepper motor is fixedly connected in the protective bin; the rotating shaft is fixedly connected to the output end of the stepper motor; the fixed cylinder is fixedly connected to the front side of the protective bin; the fixed cylinder is fixedly connected to the conical plate; the fixed cylinder is located on the outside of the rotating shaft; the lower side of the rotating shaft is fixedly connected to the grinding wheel; the rotating shaft is fixedly connected to the filter screen, and the filter screen is in contact with the conical plate.

[0008] Preferably, a baffle is also included; the fixed cylinder is fixedly connected to the baffle via a connecting plate; the baffle is located at the front side of the grinding wheel.

[0009] Preferably, a transparent observation window is provided on the protective cover.

[0010] Preferably, the filter screen is configured to be conical.

[0011] Preferably, the upper side of each through hole is expanded.

[0012] Preferably, the lower edge of each through hole is provided with an arc chamfer.

[0013] Preferably, each water flow trough is arranged to be inclined downward on the left side.

[0014] Preferably, a side of the lower side of the collecting chamber close to the conical plate is arranged as a downwardly inclined slope.

[0015] Preferably, it also includes a water inlet pipe, a rotating ring and a water outlet pipe; a heat dissipation chamber is opened in the grinding wheel; a rotating ring is rotatably connected to the upper side of the grinding wheel; a water inlet pipe is fixedly connected to the rotating ring; the water inlet pipe passes through the collecting bin; the water inlet pipe is connected to the heat dissipation chamber; the rotating ring is fixedly connected to the water outlet pipe, and the water outlet pipe and the water inlet pipe are symmetrically distributed on the rotating ring; the water outlet pipe passes through the collecting bin; the other end of the water outlet pipe is connected to a water pump; and the water outlet pipe is connected to the heat dissipation chamber.

[0016] The beneficial effects of the present invention are as follows: the present invention can change the state of the grinding wheel according to the area of ​​the grinding surface of the metal mold, and there is no need to manually adjust the installation state of the grinding wheel and the direction of the grinding surface of the grinding wheel; The coolant is pumped into the liquid inlet pipe through an external cooling pump, so that the coolant flows along the liquid inlet pipe into the space between the conical plate and the grinding wheel, and then sprayed out from the through hole. In this process, the coolant flowing out from the inside to the outside is used for cooling and lubricating, ensuring that the coolant has a cooling and lubricating effect on the metal mold being polished by the grinding wheel, which is beneficial to prolonging the service life of the grinding wheel; The toxic gas generated during the dry grinding process is sucked out through the air outlet pipe to avoid the workers inhaling toxic gas and damaging their health when they open the protective door on the protective cover after grinding. During the dry grinding process, the air outlet pipe generates a suction force from the outside to the inside in the through hole, so as to extract the metal debris adhered to the metal mold to be polished and the grinding wheel during the grinding process, so as to prevent the debris from being ground flat on the metal mold to be polished by the grinding wheel, thereby affecting the grinding quality of the metal mold to be polished by the grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the multifunctional grinder for mold processing of the present invention; Figure 2 It is a schematic diagram of the internal three-dimensional structure of the protective cover of the present invention, wherein the protective cover is treated as a cross-section; Figure 3 It is a schematic diagram of the three-dimensional structure of the connection assembly, the moving unit, the grinding wheel and the baffle assembly of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the grinding wheel of the present invention in a state where the wide surface of the grinding wheel is rotating downward; Figure 5 It is a schematic diagram of the three-dimensional structure of the grinding wheel, the fixed cylinder and the rotating shaft combination of the present invention, wherein the grinding wheel and the fixed cylinder are cross-sectionally processed; Figure 6 It is a schematic diagram of the three-dimensional structure of the front view of the grinding wheel, conical plate, collection bin and retaining ring combination of the present invention, wherein the grinding wheel, conical plate, collection bin and retaining ring are processed in cross-section; Figure 7 It is a top view of the grinding wheel of the present invention, wherein the grinding wheel is treated as a cross-section.

[0018] Explanation of the accompanying drawings: 1-CNC grinder, 1001-water flow trough, 2-grinding wheel, 2001-through hole, 2002-heat dissipation chamber, 2003-narrow surface, 2004-wide surface, 3-conical plate, 3001-channel, 4-liquid inlet pipe, 5-air outlet pipe, 6-collecting bin, 6001-collecting chamber, 7-driving member, 8-blocking ring, 9-filter, 10-protective cover, 10001-transparent observation window, 101-slide rail, 102-electric slider, 103-servo motor, 104-connecting frame, 105-protective bin, 106-stepping motor, 107-fixed cylinder, 108-rotating shaft, 109-baffle, 201-water inlet pipe, 202-rotating ring, 203-water outlet pipe. DETAILED DESCRIPTION

[0019] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0020] Example 1 like Figure 1-Figure 7 As shown, a multifunctional grinder for mold processing includes a CNC grinder 1, a connecting assembly, a grinding wheel 2 and a protective cover 10; the CNC grinder 1 is connected to the protective cover 10; the protective cover 10 is provided with a connecting assembly; the connecting assembly is connected to the grinding wheel 2; the CNC grinder 1 is provided with two front-to-back symmetrical water flow grooves 1001; the grinding wheel 2 is provided with a narrow surface 2003; the grinding wheel 2 is provided with a wide surface 2004; It also includes a conical plate 3, a liquid inlet pipe 4, an air outlet pipe 5, a collecting bin 6, a driving member 7, a retaining ring 8 and a filter screen 9; a plurality of through holes 2001 are opened on the grinding wheel 2; the conical plate 3 is connected to the connecting assembly; a channel 3001 is arranged between the bottom surface of the conical plate 3 and the grinding wheel 2; the conical plate 3 is connected to the liquid inlet pipe 4, and the liquid inlet pipe 4 is made of rubber material; the conical plate 3 is connected to the air outlet pipe 5, and the air outlet pipe 5 is made of rubber material; the air outlet pipe 5 and the liquid inlet pipe 4 are symmetrically distributed on the conical plate 3; the collecting bin 6 is detachably connected to the outer side of the conical plate 3; a collecting chamber 6001 is arranged in the collecting bin 6; two driving members 7 are connected to the connecting assembly, and the driving member 7 is an electric push rod; a retaining ring 8 is slidably connected to the collecting bin 6; the retaining ring 8 is bolted to the telescopic ends of the two driving members 7; the filter screen 9 is connected to the connecting assembly.

[0021] The connecting component includes a moving unit, a servo motor 103, a connecting frame 104, a protective chamber 105, a stepper motor 106, a fixed cylinder 107 and a rotating shaft 108; a moving unit is arranged in the protective cover 10; the servo motor 103 is connected to the moving unit; the connecting frame 104 is fixedly connected to the output end of the servo motor 103; the protective chamber 105 is fixedly connected to the connecting frame 104; the stepper motor 106 is fixedly connected in the protective chamber 105; the rotating shaft 108 is fixedly connected to the output end of the stepper motor 106; the fixed cylinder 107 is fixedly connected to the front side of the protective chamber 105; the fixed cylinder 107 is fixedly connected to the conical plate 3; the fixed cylinder 107 is located on the outside of the rotating shaft 108; the lower side of the rotating shaft 108 is fixedly connected to the grinding wheel 2; the rotating shaft 108 is fixedly connected to the filter screen 9, and the filter screen 9 is in contact with the conical plate 3.

[0022] The moving unit includes a slide rail 101 and an electric slider 102 . The slide rail 101 is fixedly connected inside the protective cover 10 . The electric slider 102 is slidably connected to the slide rail 101 . The electric slider 102 is fixedly connected to the servo motor 103 .

[0023] The baffle plate 109 is also included; the fixed cylinder 107 is fixedly connected to the baffle plate 109 via a connecting plate; the baffle plate 109 is located at the front side of the grinding wheel 2.

[0024] A transparent observation window 10001 is provided on the protective cover 10 , which is convenient for the staff to observe the grinding condition inside the protective cover 10 .

[0025] The filter screen 9 is arranged in a cone shape.

[0026] First, the staff opens the protective door on the protective cover 10, places the metal mold to be polished in the CNC grinder 1, and fixes the metal mold to be polished on the CNC grinder 1 by electromagnetic force, then closes the protective door on the protective cover 10, sets the program, and prepares to polish the metal mold to be polished.

[0027] In the process of grinding the metal mold to be polished, if the surface of the metal mold to be polished is small, the stepper motor 106 is controlled to directly drive the rotating shaft 108 to rotate counterclockwise, thereby driving the grinding wheel 2 to rotate counterclockwise, such as Figure 3 As shown, the metal mold to be polished is polished by the rotating narrow surface 2003 of the grinding wheel 2. If the metal mold to be polished has a large polishing surface, in order to ensure the polishing efficiency, the electric slider 102 is first controlled to move upward along the slide rail 101, so that the electric slider 102 drives the grinding wheel 2 and other parts to move upward to avoid interference between the grinding wheel 2 and the metal mold to be polished when the grinding surface is subsequently rotated to adjust. Subsequently, based on the view from the front to the back, the servo motor 103 is controlled to drive the connecting frame 104 to rotate counterclockwise by ninety degrees, thereby driving the protection chamber 105, the stepper motor 106, the fixed cylinder 107, the rotating shaft 108 and the grinding wheel 2 to rotate counterclockwise by ninety degrees, so that the grinding wheel 2 rotates to the position shown in FIG. Figure 4In the state shown, at this time, based on the view from bottom to top, the stepper motor 106 is controlled to drive the rotating shaft 108 and the grinding wheel 2 to rotate clockwise, thereby driving the wide surface 2004 to rotate clockwise, and then the metal mold to be polished is polished by the rotating wide surface 2004. In this way, the present invention can change the state of the grinding wheel 2 according to the area of ​​the polishing surface of the metal mold, without manually adjusting the installation state of the grinding wheel 2 and adjusting the direction of the polishing surface of the grinding wheel 2.

[0028] In the following description, Figure 4 As a visual angle reference, when the wide surface 2004 is used to wet-grind the metal mold to be polished, the prior art will simultaneously spray coolant on the grinding wheel 2 and the metal mold to be polished during the polishing process, so as to cool and lubricate the grinding wheel 2 and the metal mold to be polished during the polishing process. However, due to the large area of ​​the wide surface 2004, the coolant can only be sprayed on the position where the edge of the wide surface 2004 contacts the metal mold to be polished, but it is difficult to spray it on the position where the middle of the wide surface 2004 contacts the metal mold to be polished, resulting in the middle of the wide surface 2004 being difficult to cool down by the coolant. Therefore, in the process of polishing the metal mold to be polished by the wide surface 2004, the coolant is pumped into the liquid inlet pipe 4 through an external cooling pump, so that the coolant enters between the conical plate 3 and the grinding wheel 2 along the liquid inlet pipe 4, and then is sprayed out from the through hole 2001. In this process, the coolant flowing from the inside to the outside is used for cooling and lubrication, ensuring that the coolant can cool the grinding wheel 2 The cooling and lubricating effects of grinding the metal mold are beneficial to improving the service life of the grinding wheel 2. At the same time, the centrifugal force generated by the high-speed rotation of the grinding wheel 2 will cause the coolant to splash toward the inner wall of the protective cover 10, causing the coolant mixed with debris to splash on the transparent observation window 10001 and block the staff's line of sight when the staff observes the grinding condition of the metal mold to be polished through the transparent observation window 10001 on the protective cover 10. Therefore, during the grinding process, the baffle 109 is used to block the coolant splashing toward the transparent observation window 10001, so that the staff can observe the grinding condition of the metal mold to be polished through the transparent observation window 10001. At the same time, the splashed coolant will gradually gather in the water trough 1001 to collect the coolant and debris. After the grinding of the metal mold to be polished is completed, the staff pulls open the protective door on the protective cover 10, takes out the polished metal mold, and then performs subsequent grinding work on the metal mold to be polished.

[0029] During the dry grinding of the metal mold to be grinded, the external cooling pump stops pumping the coolant into the liquid inlet pipe 4. At this time, the external exhaust fan connected to the air outlet pipe 5 is controlled to start, so as to exhaust air through the exhaust fan, so that the toxic gas generated during the dry grinding of the grinding wheel 2 (the gas contains metal dust and particles and the gas contains oxide smoke, etc.) enters the conical plate 3 along the through hole 2001, and then enters the air outlet pipe 5 upward, and enters the subsequent purification step along the air outlet pipe 5, so as to realize the treatment of the toxic gas and avoid the staff from inhaling toxic gas and damaging their health when opening the protective door on the protective cover 10 after the grinding is completed.

[0030] Furthermore, during the dry grinding of the metal mold to be polished, the suction force from the outside to the inside is generated through the through hole 2001, which can remove the metal debris adhered to the metal mold to be polished and the grinding wheel 2 during the grinding process, thereby preventing the debris from being ground flat on the metal mold to be polished by the grinding wheel 2 and affecting the grinding quality of the metal mold to be polished by the grinding wheel 2.

[0031] However, it is considered that when the airflow drives the metal debris to enter the conical plate 3 along the through hole 2001, the metal debris will enter the air outlet pipe 5. Since the liquid inlet pipe 4 and the air outlet pipe 5 are both made of rubber, the air outlet pipe 5 is easily scratched by the metal debris, which affects the service life. In addition, the metal debris is easily accumulated in the conical plate 3. After each grinding, the staff needs to deal with the debris in the conical plate 3. Therefore, after the metal debris enters the conical plate 3 with the airflow, the metal debris is intercepted by the filter 9 to prevent the metal debris from damaging the air outlet pipe 5, so as to protect the air outlet pipe 5. At the same time, the control driving member 7 drives the retaining ring 8 to move upward, thereby exposing the channel 3001, so that the conical plate 3 and the collection bin 6 are connected through the channel 3001 ( During wet grinding, the retaining ring 8 blocks the channel 3001, and the conical plate 3 and the collecting bin 6 are not connected to prevent the coolant from entering the collecting bin 6), so that the metal debris intercepted by the filter screen 9 moves to the channel 3001 under the action of the centrifugal force generated by the rotation of the grinding wheel 2, and passes through the channel 3001 to enter the collecting chamber 6001 in the collecting bin 6, thereby collecting the metal debris through the collecting chamber 6001, avoiding the debris from clogging the filter screen 9, affecting the circulation of toxic gases, and affecting the treatment of toxic gases. After multiple grinding work is completed, the staff can remove the collecting bin 6 and clean the metal debris collected in the collecting chamber 6001. There is no need for the staff to frequently handle the debris of the conical plate 3, thereby extending the cleaning cycle of the debris in the conical plate 3.

[0032] Furthermore, when the conical plate 3 is wet-grinding the metal mold to be polished, the coolant sprayed from the liquid inlet pipe 4 backwashes the debris remaining on the filter screen 9, causing the debris remaining on the filter screen 9 to fall off, and then the debris is discharged from the inside to the outside through the through hole 2001 along with the coolant. In this way, the filter screen 9 is automatically backwashed during the switching process between dry grinding and wet grinding, further extending the cleaning cycle of the debris in the conical plate 3.

[0033] The upper side of each through hole 2001 is flared; when the coolant flows downward along the through hole 2001, the flow rate of the coolant is accelerated, increasing the impact force of the coolant on the metal mold to be polished, washing away the metal debris on the metal mold to be polished, and improving the cleaning effect of the metal debris adhering to the metal mold to be polished.

[0034] The lower edge of each through hole 2001 is provided with an arc chamfer, so as to prevent the lower edge of the through hole 2001 from scratching the metal mold to be polished, thereby improving the protection effect of the metal mold to be polished.

[0035] Each water flow trough 1001 is arranged to be tilted downward on the left side, so that the coolant and metal chips flow to the left along the water flow trough 1001 , so that the coolant and metal chips flow out of the outside of the protective cover 10 .

[0036] The lower side of the collecting chamber 6001 close to the conical plate 3 is set as a downward inclined surface, which facilitates the entry of debris into the collecting chamber 6001 and improves the collection effect of the collecting chamber 6001 on the debris.

[0037] Example 2 On the basis of Example 1, Figure 4-Figure 7 As shown, it also includes a water inlet pipe 201, a rotating ring 202 and a water outlet pipe 203; a heat dissipation chamber 2002 is opened in the grinding wheel 2; a rotating ring 202 is rotatably connected to the upper side of the grinding wheel 2; the rotating ring 202 is fixedly connected to the water inlet pipe 201; the water inlet pipe 201 passes through the collecting bin 6; the water inlet pipe 201 is communicated with the heat dissipation chamber 2002; the rotating ring 202 is fixedly connected to the water outlet pipe 203, and the water outlet pipe 203 and the water inlet pipe 201 are symmetrically distributed on the rotating ring 202; the water outlet pipe 203 passes through the collecting bin 6; the other end of the water outlet pipe 203 is connected to a water pump; the water outlet pipe 203 is communicated with the heat dissipation chamber 2002.

[0038] During the dry grinding process of the grinding wheel 2, the coolant is pumped into the water inlet pipe 201 through another external cooling pump, so that the coolant enters the heat dissipation chamber 2002 along the water inlet pipe 201, and then the pump connected to the water outlet pipe 203 is controlled to perform the pumping work. It should be noted that the water outlet pipe 203 is connected to the output end of the pump and the input end of the cooling pump connected to the water inlet pipe 201, so that the coolant in the heat dissipation chamber 2002 flows to the water outlet pipe 203, and after entering the water outlet pipe 203 and the water pump, the coolant flows along the pump. The water output end flows into the cooling pump connected to the water inlet pipe 201 to realize the circulation of the coolant, so that the coolant can dissipate heat to the grinding wheel 2 during the flow in the heat dissipation chamber 2002, thereby avoiding the accumulation of large amounts of heat during the dry grinding of the grinding wheel 2, which affects the service life of the grinding wheel 2. In addition, during the wet grinding process, the water inlet pipe 201 and the water outlet pipe 203 can cooperate with the corresponding cooling pump and water pump to realize the flow of the coolant in the heat dissipation chamber 2002, thereby improving the heat dissipation effect of the grinding wheel 2 during the wet grinding process.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multifunctional grinder for mold processing, comprising a numerically controlled grinder (1), a connecting assembly, a grinding wheel (2) and a protective cover (10); the numerically controlled grinder (1) is connected to the protective cover (10); the connecting assembly is arranged inside the protective cover (10); the grinding wheel (2) is connected to the connecting assembly; the numerically controlled grinder (1) is provided with two water flow grooves (1001); the grinding wheel (2) is provided with a narrow surface (2003); the grinding wheel (2) is provided with a wide surface (2004); the characteristic is that: The invention also comprises a conical plate (3), a liquid inlet pipe (4), an air outlet pipe (5), a collecting bin (6), a driving member (7), a retaining ring (8) and a filter screen (9); a plurality of through holes (2001) are provided on the grinding wheel (2); the conical plate (3) is connected to the connecting assembly; a channel (3001) is provided between the bottom surface of the conical plate (3) and the grinding wheel (2); the conical plate (3) is connected to a liquid inlet pipe (4) for providing cooling liquid for cooling and lubrication of the conical plate (3); the conical plate (3) is connected to an air outlet pipe (5) for extracting toxic gases; and the air outlet pipe (6) is provided to the conical plate (3). The tube (5) and the liquid inlet tube (4) are symmetrically distributed on the conical plate (3); a collecting bin (6) for collecting metal debris is detachably connected to the outer side of the conical plate (3); a collecting chamber (6001) is provided in the collecting bin (6); two driving members (7) are connected to the connecting assembly; a retaining ring (8) is slidably connected to the collecting bin (6), and the retaining ring (8) is used to open and close the channel (3001); the retaining ring (8) is detachably connected to the telescopic ends of the two driving members (7); and a filter screen (9) for intercepting metal debris is connected to the connecting assembly.

2. A multifunctional grinder for mold processing according to claim 1, characterized in that: The connecting assembly comprises a moving unit, a servo motor (103), a connecting frame (104), a protective chamber (105), a stepping motor (106), a fixing cylinder (107) and a rotating shaft (108); the moving unit is arranged in the protective cover (10); the servo motor (103) is connected to the moving unit; the moving unit is used to drive the servo motor (103) to move up and down; the output end of the servo motor (103) is fixedly connected to the connecting frame (104); the protective chamber (105) is fixedly connected to the connecting frame (104); the fixing cylinder (107) and the rotating shaft (108) are provided in the protective cover (10). The protective chamber (105) comprises a stepping motor (106) fixedly connected inside the protective chamber (105); a rotating shaft (108) fixedly connected to the output end of the stepping motor (106); a fixed cylinder (107) fixedly connected to the front side of the protective chamber (105); the fixed cylinder (107) is fixedly connected to the conical plate (3); the fixed cylinder (107) is located outside the rotating shaft (108); the lower side of the rotating shaft (108) is fixedly connected to the grinding wheel (2); the rotating shaft (108) is fixedly connected to the filter screen (9), and the filter screen (9) is in contact with the conical plate (3).

3. A multifunctional grinder for mold processing according to claim 2, characterized in that: It also includes a baffle (109); the fixed cylinder (107) is fixedly connected to the baffle (109) via a connecting plate; the baffle (109) is located at the front side of the grinding wheel (2).

4. The multifunctional grinder for mold processing according to claim 1, characterized in that: A transparent observation window (10001) is provided on the protective cover (10).

5. The multifunctional grinder for mold processing according to claim 1, characterized in that: The filter screen (9) is configured to be conical.

6. The multifunctional grinder for mold processing according to claim 1, characterized in that: The upper side of each through hole (2001) is expanded.

7. A multifunctional grinder for mold processing according to claim 6, characterized in that: The lower edge of each through hole (2001) is provided with an arc chamfer.

8. The multifunctional grinder for mold processing according to claim 1, characterized in that: Each water flow trough (1001) is arranged to be inclined downward on the left side.

9. The multifunctional grinder for mold processing according to claim 1, characterized in that: The side of the lower side of the collecting chamber (6001) close to the conical plate (3) is configured as a downwardly inclined slope.

10. The multifunctional grinder for mold processing according to claim 1, characterized in that: The invention also comprises a water inlet pipe (201), a rotating ring (202) and a water outlet pipe (203); a heat dissipation chamber (2002) is provided in the grinding wheel (2); the upper side of the grinding wheel (2) is rotatably connected to the rotating ring (202); the water inlet pipe (201) is fixedly connected to the rotating ring (202); the water inlet pipe (201) passes through the collecting bin (6); the water inlet pipe (201) is communicated with the heat dissipation chamber (2002); the rotating ring (202) is fixedly connected to the water outlet pipe (203), and the water outlet pipe (203) and the water inlet pipe (201) are symmetrically distributed on the rotating ring (202); the water outlet pipe (203) passes through the collecting bin (6); the other end of the water outlet pipe (203) is connected to a water pump; and the water outlet pipe (203) is communicated with the heat dissipation chamber (2002).

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