A grinding device for die production automatically replacing workpieces

Abstract

This invention discloses a grinding device for mold production with automatic workpiece changing, relating to the field of grinding technology. It includes a grinding component, a removal component, a recovery component, a machine base, a material changing component, and an outer casing. The material changing component, machine base, and ground are securely connected. The material changing component is located on one side of the machine base. The outer casing is securely connected to the machine base. The grinding component, removal component, and recovery component are located inside the outer casing. The grinding component, recovery component, and removal component are all securely connected to the machine base. This invention utilizes an airflow gap to cause the airflow inside the vents to move towards the airflow gap, thus expelling debris clogging the vents. Furthermore, the invention employs an arc-shaped guide surface to intermittently impact the surface of the grinding wheel layer with the airflow in the airflow gap. Combined with the outward flow of airflow within the vents, the ground abrasive undergoes greater airflow agitation, accelerating the abrasive shedding process.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, specifically to a grinding device for mold production with automatic workpiece changing capability. Background Technology

[0002] During the mold production process, the mold needs to be ground to ensure that it reaches the standard size. However, the existing mold grinding equipment has many defects in the production process and cannot meet the usage requirements.

[0003] During the grinding process of a mold, the grinding wheel layer polishes the mold. If a large protrusion appears on the surface to be polished during polishing, it may cause the grinding wheel to chip, resulting in the loss of a certain part of the grinding wheel layer. The overall mass of the grinding wheel will no longer be balanced, and the center of gravity will shift. During high-speed rotation, the grinding wheel will experience increased vibration, and the shift in the center of gravity will gradually heat up during continuous rotation, eventually leading to the failure of the grinding wheel.

[0004] Grinding wheels are generally composed of abrasive, bonding agent, and pores. During the grinding process, grinding debris easily gets trapped in the surface pores. This debris infiltration affects both the grinding effect and the lifespan of the grinding wheel. During grinding, the abrasive surface gradually becomes smooth. When the surface abrasive becomes too smooth, effective grinding is no longer possible. At this point, the abrasive needs to detach in time to replace it with a new layer to provide sufficient grinding force. However, existing grinding wheels achieve this process through natural detachment, which is not a reliable method. Summary of the Invention

[0005] The purpose of this invention is to provide a grinding device for mold production with automatic workpiece changing, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a grinding device for mold production with automatic workpiece changing, comprising a grinding component, a removal component, a recovery component, a machine base, a material changing component, and an outer casing. The material changing component, the machine base, and the ground are fastened together. The material changing component is located on one side of the machine base. The outer casing is fastened together with the machine base. The grinding component, the removal component, and the recovery component are located inside the outer casing. The grinding component is fastened together with the machine base, the recovery component is fastened together with the grinding component, and the removal component is fastened together with the machine base. One end of the grinding component extends into the removal component. The material changing component transports the workpiece to the grinding component, which grinds the workpiece. The ground workpiece is then conveyed to the removal component, which removes any remaining burrs. The recovery component recovers the grinding debris after grinding. During the burr removal process, the shot peening particles and the removed burrs are also recovered. The present invention, through the setting of an airflow gap, causes the airflow inside the vent to move towards the airflow gap, thus expelling debris clogging the vent. The present invention, through the setting of the arc-shaped guide surface, causes the airflow in the airflow gap to intermittently impact the surface of the grinding wheel layer. Combined with the outward flow of airflow inside the air hole, the ground abrasive will be subjected to greater airflow swaying, which accelerates the abrasive shedding process.

[0007] Furthermore, the grinding assembly includes a crossbeam frame, a translation module, a lifting module, a shifting module, a grinding unit, and a fixed table. The crossbeam frame, shifting module, and machine base are securely connected; the translation module and crossbeam frame are securely connected; the moving platforms of the lifting module and translation module are securely connected; the grinding unit and the displacement platform of the lifting module are securely connected; and the fixed table and the displacement platform of the shifting module are securely connected. The translation module drives the lifting module to translate, the lifting module drives the grinding unit to lift and lower, and the shifting module drives the fixed table to move, achieving omnidirectional movement of the grinding unit. After grinding is completed, the shifting module moves the fixed table to the removal component position.

[0008] Furthermore, the grinding unit includes a drive box, a drive shaft, a drive sleeve, grinding wheels, and a guide sleeve. The drive box and the displacement platform of the lifting module are fastened together. The drive shaft, drive sleeve, and drive box are rotatably connected. The end of the drive shaft away from the drive box is fastened to the grinding wheel, and the end of the guide sleeve and drive sleeve away from the drive box is fastened together. Multiple sets of grinding wheels of different sizes are provided to meet the grinding needs of edges, corners, and holes. The drive box contains a drive unit that can switch its own angle and provide kinetic energy to each grinding wheel. The drive unit is a conventional technology in this field, and its specific structure is not described. The drive shaft and drive sleeve are driven by different drive units, enabling differential rotation. The drive sleeve drives the guide sleeve to adjust its angle, preventing contact with the mold sidewall during grinding. The drive shaft drives the grinding wheel to rotate, and the grinding wheel performs grinding processing on various parts of the mold.

[0009] Furthermore, the grinding wheel includes a grinding wheel layer, a fixed layer, and adjusting components. Multiple sets of adjusting components are provided. The grinding wheel layer and the fixed layer are tightly connected, and the fixed layer is tightly connected to the drive shaft. The adjusting components include an adjusting cavity, a counterweight, a pressure spring, and a heat transfer plate. The adjusting cavity is located inside the fixed layer, and the heat transfer plate is located inside the grinding wheel layer. A heat-conducting rod is provided between the adjusting cavity and the heat transfer plate. The counterweight and the adjusting cavity are slidably connected. The pressure spring is located inside the adjusting cavity near the drive shaft, with one end of the pressure spring tightly connected to the counterweight and the other end tightly connected to the side wall of the adjusting cavity. During grinding on the grinding wheel layer, if a large protrusion appears on the surface to be ground, it may cause chipping of the grinding wheel. When a local area of ​​the grinding wheel layer is missing, the overall mass of the grinding wheel becomes unbalanced, and the center of gravity shifts. During high-speed rotation, the grinding wheel will experience increased vibration, and the shifted center of gravity will gradually heat up during continuous rotation, ultimately leading to grinding wheel failure. The grinding wheel of this invention solves this problem. This invention incorporates multiple layers of heat transfer plates in the grinding wheel layer, evenly distributed along the axial direction of the grinding wheel layer. Each layer contains multiple heat transfer plates, which are evenly distributed circumferentially along the grinding wheel layer. Since the grinding wheel layer has poor thermal conductivity, a significant temperature rise only occurs at the friction points. This temperature rise is transferred back to the regulating cavity through the heat transfer plates. Heat transfer between adjacent heat transfer plates can be reduced by a heat insulation layer. At the missing points in the grinding wheel layer, due to the significantly reduced friction, the temperature rise is significantly lower than at other locations. When heat is transferred to the regulating cavity, the gas temperature inside the regulating cavity corresponding to the missing point is lower. The counterweight at this location is pushed outward by a pressure spring. The density of the counterweight is much greater than that of the grinding wheel layer, which can compensate for the shift in the center of gravity at this location to a certain extent. The grinding wheel of the present invention uses the thermal energy difference at the missing position of the grinding wheel as the adjustment power, which changes the distribution position of the counterweight blocks inside the fixed layer. The counterweight blocks are adjusted to adjust the center of gravity near the rotation center with a large density, which compensates for the eccentricity to a certain extent, reduces the vibration amplitude of the grinding wheel during operation, and improves the service life of the grinding wheel.

[0010] Furthermore, the guide sleeve is designed in an arc shape, fitting around the outside of the grinding wheel. A gap exists between the inner wall of the guide sleeve and the grinding wheel. The inner wall of the guide sleeve features an arc-shaped guide surface and an exhaust block, positioned in the center of the guide sleeve. Exhaust vents are located on both sides of the exhaust block, which connects to an external negative pressure pipe. Multiple sets of arc-shaped guide surfaces protrude from the grinding wheel side. Grinding wheels typically consist of abrasive, bonding agent, and pores. During operation, grinding debris easily becomes trapped in these pores. This debris ingress affects both the grinding effect and the wheel's lifespan. As the abrasive surface gradually becomes smoother, it needs to detach promptly to replace the old layer and provide sufficient grinding force. However, existing grinding wheels achieve this through natural detachment, a method that is not reliable. The present invention incorporates an airflow gap between the grinding wheel and the guide sleeve. Airflow enters the gap from both sides of the grinding wheel and exits through the exhaust block. The airflow velocity within the gap is relatively high, resulting in lower airflow pressure. This causes the gas in the grinding wheel's pores to flow towards the gap, pushing out debris clogging the pores. As the grinding wheel surface is smoothed, the airflow gap increases accordingly. The arc-shaped guide surface continuously guides the airflow to impact the grinding wheel surface. After impact, the airflow in the pores pushes the grinding wheel surface outwards. The smoothed abrasive surface area is large, the angle is flat, and the flow guidance capacity is poor. The thrust of the airflow on the abrasive surface is greater, accelerating the shaking and shedding of the smoothed abrasive. The increased airflow gap also leads to smoother airflow and increased airflow rate, resulting in a greater impact on the abrasive. The present invention, through the design of the airflow gap, causes the airflow inside the pores to move towards the gap, thus pushing out debris clogging the pores. The present invention, through the setting of the arc-shaped guide surface, causes the airflow in the airflow gap to intermittently impact the surface of the grinding wheel layer. Combined with the outward flow of airflow inside the air hole, the ground abrasive will be subjected to greater airflow swaying, which accelerates the abrasive shedding process.

[0011] Furthermore, the removal assembly includes a cover box, a storage chamber, a shot peening device, and an electrode plate. The cover box is securely connected to the machine base. An opening is provided on one side of the cover box, through which the shifting module extends. The storage chamber is located on the upper side of the inner wall of the cover box. The shot peening device and the storage chamber are securely connected. The electrode plate is securely connected to the machine base. A negative ion generator is provided at the connection between the storage chamber and the shot peening device. This invention uses metal pellet shot. During the process of the shot being transported from the storage chamber to the shot peening device, the negative ion generator inputs a negative charge into the shot. When the workpiece moves to the removal assembly, it will come into contact with the electrode plate. The electrode plate is connected to an external positive electrode plate, which inputs a positive charge into the workpiece. The shot is ejected by the shot peening device and impacts the mold surface, removing burrs from the mold surface. Pointed charges will accumulate at the burr locations. Under the guidance of positive and negative charges, the shot will concentrate towards the burr locations, improving the shot peening effect. This invention guides the shot peening process by applying dissimilar charges to the shot peening and the workpiece, thereby improving the burr removal effect and reducing damage to the workpiece surface, thus greatly enhancing the processing effect of the grinding device.

[0012] Furthermore, the recycling assembly includes a clamping plate, a collection hole, an air outlet plate, and a pusher cylinder. The clamping plate and the fixed table are slidably connected, and the pusher cylinder and the fixed table are fastened together. The output shaft of the pusher cylinder is also fastened to the clamping plate. Multiple collection holes are evenly distributed along the clamping plate, with their upper ends horizontally positioned. Two sets of clamping plates and air outlet plates are provided, each set positioned on one side of the fixed table. The sides of the fixed table without clamping plates are fastened to the air outlet plates. An air outlet is located at the upper end of the air outlet plate, tilted towards the center of the fixed table. The clamping plate clamps the workpiece under the pusher cylinder's pressure. After grinding, airflow is drawn in through the collection hole and output through the air outlet plate. The airflow from the air outlet plate impacts the workpiece surface, raising debris and preventing it from accumulating in the corners of the mold. The collection hole collects the raised debris and connects to a recycling chamber located inside the machine tool via an airflow pipe. During the shot peening process, shot peening and recovery are carried out alternately to avoid affecting the shot peening trajectory and to prevent shot accumulation.

[0013] Furthermore, the material changing assembly includes a feeding line, a discharging line, and an auxiliary robotic arm. The feeding line, discharging line, and auxiliary robotic arm are securely connected to the ground. An automatic door is installed on the outer casing. The feeding line and discharging line are located on the side of the outer casing with the automatic door. The auxiliary robotic arm is positioned between the feeding line and the discharging line, and it is equipped with a material-grabbing suction cup. The feeding line transports the workpiece to the auxiliary robotic arm, where the material-grabbing suction cup picks up the mold and moves it to a fixed platform. After the work is completed, the auxiliary robotic arm then moves the mold to the discharging line for output.

[0014] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention achieves fully automated settings for the loading and unloading process and the grinding process, avoiding manual intervention and greatly improving the overall working efficiency and processing accuracy of the device. The grinding wheel of this invention uses the thermal energy difference at the missing position of the grinding wheel as the adjustment power, changing the distribution position of the counterweights inside the fixed layer. The counterweights are adjusted at a higher density near the rotation center to compensate for the eccentricity to a certain extent, reducing the vibration amplitude of the grinding wheel during operation and extending its service life. This invention, through the setting of the airflow gap, causes the airflow inside the pores to move towards the airflow gap, allowing debris clogging the pores to be pushed out by the airflow. This invention, through the setting of the arc-shaped guide surface, causes the airflow in the airflow gap to intermittently impact the surface of the grinding wheel layer. Combined with the outward flow of airflow inside the pores, the ground abrasive is subjected to greater airflow agitation, accelerating the abrasive shedding process. This invention guides the shot peening process by applying dissimilar charges to the shot peening and the workpiece, thereby improving the burr removal effect and reducing damage to the workpiece surface, thus greatly enhancing the processing effect of the grinding device. Attached Figure Description

[0015] 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:

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the outer casing of the present invention;

[0018] Figure 3 This is a schematic diagram of the overall structure of the grinding unit of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the grinding wheel of the present invention;

[0020] Figure 5 This is a partial cross-sectional view of the guide sleeve of the present invention;

[0021] Figure 6 yes Figure 5 Enlarged view of a portion at point A;

[0022] Figure 7 This is a schematic diagram illustrating the working principle of the removal component of the present invention;

[0023] Figure 8 This is a schematic diagram of the working principle of the recycling component of the present invention;

[0024] In the diagram: 1-Grinding assembly, 11-Crossbeam frame, 12-Translation module, 13-Lifting module, 14-Positioning module, 15-Grinding unit, 151-Drive box, 152-Drive shaft, 153-Drive sleeve, 154-Grinding wheel, 1541-Grinding wheel layer, 1542-Fixing layer, 1543-Adjusting cavity, 1544-Counterweight, 1545-Pressure spring, 1546-Heat transfer plate, 155-Guide 1551-Arc-shaped guide surface, 1552-Exhaust block, 16-Fixed platform, 2-Removal component, 21-Cover box, 22-Storage bin, 23-Shot peening device, 24-Electrode sheet, 3-Recovery component, 31-Clamping plate, 32-Collection hole, 33-Exhaust plate, 34-Pushing cylinder, 4-Machine base, 5-Material changing component, 51-Feeding line, 52-Discharge line, 53-Auxiliary robotic arm, 6-Outer casing. Detailed Implementation

[0025] 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.

[0026] like Figure 1 , Figure 7 As shown, a grinding device for mold production with automatic workpiece changing includes a grinding component 1, a removal component 2, a recovery component 3, a machine base 4, a material changing component 5, and an outer casing 6. The material changing component 5 and the machine base 4 are fixedly connected to the ground. The material changing component 5 is located on one side of the machine base 4. The outer casing 6 is fixedly connected to the machine base 4. The grinding component 1, removal component 2, and recovery component 3 are located inside the outer casing 6. The grinding component 1 is fixedly connected to the machine base 4, the recovery component 3 is fixedly connected to the grinding component 1, and the removal component 2 is fixedly connected to the machine base 4. One end of the grinding component 1 extends into the removal component 2. The material changing component 5 transports the workpiece onto the grinding component 1, where the grinding component 1 grinds the workpiece. The ground workpiece is then conveyed to the removal component 2, where the removal component 2 removes the burrs remaining after grinding. The recovery component 3 recovers the grinding debris after grinding and also recovers the shot peening particles and removed burrs during the burr removal process. This invention, through the design of the airflow gap, causes the airflow inside the pores to move towards the airflow gap, thus expelling debris clogging the pores. The invention also utilizes the arc-shaped guide surface 1551 to intermittently impact the surface of the grinding wheel layer 1541 with the airflow within the airflow gap. Combined with the outward flow of airflow within the pores, the ground abrasive undergoes greater airflow agitation, accelerating the abrasive shedding process.

[0027] like Figure 1 , Figure 2As shown, the grinding assembly 1 includes a crossbeam frame 11, a translation module 12, a lifting module 13, a shifting module 14, a grinding unit 15, and a fixed table 16. The crossbeam frame 11, the shifting module 14, and the machine base 4 are securely connected. The translation module 12 is securely connected to the crossbeam frame 11. The lifting module 13 and the movable platform of the translation module 12 are securely connected. The grinding unit 15 and the displacement platform of the lifting module 13 are securely connected. The fixed table 16 and the displacement platform of the shifting module 14 are securely connected. The translation module 12 drives the lifting module 13 to translate, the lifting module 13 drives the grinding unit 15 to rise and fall, and the shifting module 14 drives the fixed table 16 to move, realizing omnidirectional movement of the grinding unit 15. After grinding is completed, the shifting module 14 drives the fixed table 16 to move towards the removal assembly 2.

[0028] like Figure 2 , Figure 3 As shown, the grinding unit 15 includes a drive box 151, a drive shaft 152, a drive sleeve 153, grinding wheels 154, and a guide sleeve 155. The drive box 151 is fastened to the displacement platform of the lifting module 13. The drive shaft 152, the drive sleeve 153, and the drive box 151 are rotatably connected. The end of the drive shaft 152 away from the drive box 151 is fastened to the grinding wheel 154. The guide sleeve 155 and the end of the drive sleeve 153 away from the drive box 151 are fastened to each other. The grinding wheels 154 are provided in multiple sets of different sizes to meet the grinding needs of edges, corners, and holes. The drive box 151 contains a drive unit that can switch its own angle and provide kinetic energy to each grinding wheel 154. The drive unit is a conventional technology in this field, and its specific structure is not described. The drive shaft 152 and the drive sleeve 153 are driven by different drive units, enabling differential rotation. The drive sleeve 153 drives the guide sleeve 155 to adjust its angle, preventing contact with the mold sidewall during grinding. The drive shaft 152 drives the grinding wheel 154 to rotate, and the grinding wheel 154 performs grinding on various parts of the mold.

[0029] like Figure 4 , Figure 5As shown, the grinding wheel 154 includes a grinding wheel layer 1541, a fixed layer 1542, and an adjusting component. Multiple sets of adjusting components are provided. The grinding wheel layer 1541 and the fixed layer 1542 are fastened together, and the fixed layer 1542 is fastened together with the drive shaft 152. The adjusting component includes an adjusting cavity 1543, a counterweight 1544, a pressure spring 1545, and a heat transfer plate 1546. The adjusting cavity 1543 is located inside the fixed layer 1542, and the heat transfer plate 1546 is located inside the grinding wheel layer 1541. A heat-conducting rod is provided between the adjusting cavity 1543 and the heat transfer plate 1546. The counterweight 1544 and the adjusting cavity 1543 are slidably connected. The pressure spring 1545 is located inside the adjusting cavity 1543 on the side near the drive shaft 152. One end of the pressure spring 1545 is fastened together with the counterweight 1544, and the other end of the pressure spring 1545 is fastened together with the side wall of the adjusting cavity 1543. When grinding on the grinding wheel layer 1541, if a large protrusion appears on the surface to be ground, it may cause chipping of the grinding wheel. When a certain part of the grinding wheel layer is missing, the overall mass of the grinding wheel is no longer balanced, and the center of gravity shifts. During high-speed rotation, the grinding wheel will experience increased vibration, and the shift in the center of gravity will gradually heat up during continuous rotation, eventually leading to grinding wheel failure. The grinding wheel 154 of the present invention can solve this problem. The present invention provides multiple layers of heat transfer plates 1546 on the grinding wheel layer 1541. The multiple layers of heat transfer plates 1546 are evenly distributed along the axial direction of the grinding wheel layer 1541, and each layer of heat transfer plates 1546 has multiple plates. The multiple heat transfer plates 1546 are evenly distributed along the circumference of the grinding wheel layer 1541. Since the thermal conductivity of the grinding wheel layer 1541 is poor, there will only be a significant temperature rise at the friction position. The temperature rise at this position is transferred back to the adjustment cavity 1543 through the heat transfer plates 1546. The heat transfer between adjacent heat transfer plates 1546 can be reduced by a heat insulation layer. The temperature rise at the missing location of the grinding wheel layer 1541 is significantly lower than at other locations due to the substantial reduction in friction. When heat is transferred to the adjustment chamber, the gas temperature inside the adjustment chamber 1543 corresponding to the missing location is lower. The counterweight 1544 at this location is pushed outward by the pressure spring 1545. The density of the counterweight 1544 is much greater than that of the grinding wheel layer 1541, which can compensate for the center of gravity shift at this location to a certain extent. The grinding wheel 154 of this invention uses the thermal energy difference at the missing location of the grinding wheel as the adjustment power to change the distribution position of the counterweights inside the fixed layer 1542. The counterweight 1544, with a higher density, adjusts the center of gravity near the rotation center, compensating for the eccentricity to a certain extent, reducing the vibration amplitude of the grinding wheel 154 during operation, and improving the service life of the grinding wheel 154.

[0030] like Figure 5 , Figure 6As shown, the guide sleeve 155 is arc-shaped and fits around the outside of the grinding wheel 154. A gap exists between the inner wall of the guide sleeve 155 and the grinding wheel 154. The inner wall of the guide sleeve 155 has an arc-shaped guide surface 1551 and an exhaust block 1552. The exhaust block 1552 is positioned in the middle of the guide sleeve 155, with exhaust ports on both sides. The exhaust block 1552 is connected to an external negative pressure pipe. The arc-shaped guide surface 1551 is located on both sides of the exhaust block 1552 and protrudes towards one side of the grinding wheel 154. Multiple sets of arc-shaped guide surfaces 1551 are connected end-to-end. Grinding wheels generally consist of abrasive, bonding agent, and pores. During the operation of the grinding wheel 154, grinding debris easily gets trapped in the surface pores. This debris ingress affects the grinding effect and reduces the service life of the grinding wheel. During the grinding process, the surface of the abrasive gradually becomes smooth. When the surface abrasive becomes too smooth, the abrasive needs to be able to fall off in time to replace the new abrasive layer in order to provide sufficient grinding force. However, existing grinding wheels achieve this process through natural shedding during operation, which is not stable. An airflow gap is provided between the grinding wheel 154 and the guide sleeve 155 of this invention. Airflow enters the airflow gap from both sides of the grinding wheel 154 and is then discharged from the exhaust block 1552. The airflow velocity in the airflow gap is relatively high, and the airflow pressure is reduced. As a result, the gas in the air holes of the grinding wheel flows towards the airflow gap, and the debris blocking the air holes is pushed out by the airflow. As the surface of the grinding wheel 154 is ground flat, the airflow gap will increase accordingly. The arc-shaped guide surface 1551 guides the airflow to continuously impact the surface of the grinding wheel layer. After the impact, the airflow in the air holes pushes the surface of the grinding wheel layer outward. The surface area of ​​the ground abrasive is large, the angle is flat, and the flow guidance capacity is poor. The thrust of the airflow on the surface of the abrasive is greater, which will accelerate the shaking and falling off of the ground abrasive. The increase in the airflow gap will also lead to smoother airflow and increased airflow rate, which will increase the airflow rate that impacts the abrasive. This invention, through the setting of the airflow gap, causes the airflow inside the air holes to move towards the airflow gap, so that the debris blocking the air holes will be pushed out by the airflow. The present invention, through the setting of the arc-shaped guide surface 1551, allows the airflow in the airflow gap to intermittently impact the surface of the grinding wheel layer 1541. Combined with the outward flow of airflow inside the air hole, the ground abrasive will be subjected to greater airflow swaying, accelerating the abrasive shedding process.

[0031] like Figure 7As shown, the removal component 2 includes a cover box 21, a storage chamber 22, a shot peening device 23, and an electrode plate 24. The cover box 21 and the machine base 4 are fastened together. An opening is provided on one side of the cover box 21, and the shifting module 14 extends into the cover box 21. The storage chamber 22 is located on the upper side of the inner wall of the cover box 21. The shot peening device 23 and the storage chamber 22 are fastened together. The electrode plate 24 and the machine base 4 are fastened together. A negative ion generator is provided at the connection between the storage chamber 22 and the shot peening device 23. This invention uses metal shot pellets. During the process of the shot pellets being transported from the storage chamber 22 to the shot peening device 23, a negative ion generator inputs a negative charge into the shot pellets. When the workpiece moves to the removal component 2, it comes into contact with the electrode plate 24. The electrode plate 24 is connected to an external positive electrode plate, inputting a positive charge into the workpiece. The shot pellets are then ejected by the shot peening device 23, impacting the mold surface and removing burrs. At the burr locations, sharp charges accumulate. Guided by the positive and negative charges, the shot pellets concentrate towards the burr locations, improving the shot peening effect. This invention guides the shot peening process by applying opposite charges to the shot peening and the workpiece, improving burr removal efficiency while reducing damage to the workpiece surface, thus significantly enhancing the processing effect of the grinding device.

[0032] like Figure 8 As shown, the recycling component 3 includes a clamping plate 31, a collection hole 32, an air outlet plate 33, and a pushing electric cylinder 34. The clamping plate 31 and the fixed platform 16 are slidably connected, and the pushing electric cylinder 34 and the fixed platform 16 are fastened together. The output shaft of the pushing electric cylinder 34 is fastened together with the clamping plate 31. The upper side of the clamping plate 31 is provided with a collection hole 32. Multiple collection holes 32 are provided and are evenly arranged along the clamping plate 31. The upper end of the collection hole 32 is horizontally set. There are two sets of clamping plates 31 and air outlet plates 33. The two sets of clamping plates 31 are respectively set on both sides of the fixed platform 16. The two sides of the fixed platform 16 without clamping plates 31 are fastened together with the air outlet plates 33. The upper end of the air outlet plate 33 is provided with an air outlet, which is inclined towards the middle of the fixed platform 16. The clamping plate 31 clamps the workpiece under the push of the electric cylinder 34. After grinding, airflow is drawn in through the collection hole 32 and output through the exhaust plate 33. The airflow from the exhaust plate 33 impacts the workpiece surface, raising debris and preventing it from accumulating in the corners of the mold. The collection hole 32 collects the raised debris, which is connected to a recovery chamber located inside the machine tool via an airflow pipe. During shot peening, shot peening and recovery are performed alternately to avoid affecting the shot peening trajectory and to prevent shot accumulation.

[0033] like Figure 1As shown, the material changing assembly 5 includes a feeding line 51, a discharging line 52, and an auxiliary robotic arm 53. The feeding line 51, discharging line 52, and auxiliary robotic arm 53 are securely connected to the ground. An automatic door is installed on the outer casing 6. The feeding line 51 and discharging line 52 are located on the side of the outer casing 6 where the automatic door is located. The auxiliary robotic arm 53 is located in the middle of the feeding line 51 and discharging line 52, and it is equipped with a material-grabbing suction cup. The feeding line 51 transports the workpiece to the auxiliary robotic arm 53. The material-grabbing suction cup on the auxiliary robotic arm 53 picks up the mold and moves it to the fixed platform 16. After the work is completed, the auxiliary robotic arm 53 moves the mold back to the discharging line 52 for output.

[0034] The working principle of this invention is as follows: The feeding line 51 transports the workpiece to the auxiliary robotic arm 53. The suction cup on the auxiliary robotic arm 53 picks up the mold and transports it to the fixed platform 16. The translation module 12 drives the lifting module 13 to translate, the lifting module 13 drives the grinding unit 15 to rise and fall, and the switching module 14 drives the fixed platform 16 to move, realizing the omnidirectional movement of the grinding unit 15. The grinding wheel grinds the mold, and during the grinding process, the adjusting component adjusts the center of gravity of the grinding wheel. An airflow gap is provided between the grinding wheel 154 and the guide sleeve 155. Airflow enters the airflow gap from both sides of the grinding wheel 154 and is then discharged from the exhaust block 1552. The airflow velocity in the airflow gap is relatively fast, and the airflow pressure is reduced. As a result, the gas in the air holes of the grinding wheel will flow towards the airflow gap, and the debris blocking the air holes will be pushed out by the airflow. When the surface of the grinding wheel 154 is ground flat, the airflow gap will increase accordingly. The arc-shaped guide surface 1551 guides the airflow to continuously impact the surface of the grinding wheel layer. After the impact, the airflow in the air holes pushes the surface of the grinding wheel layer outward. The surface area of ​​the ground abrasive is large, the angle is flat, and the flow guiding ability is poor. The thrust of the airflow on the surface of the abrasive is greater, which will accelerate the shaking and falling off of the ground abrasive. The increase in the airflow gap will also lead to smoother airflow and increased airflow rate, which will increase the airflow rate that impacts the abrasive. After grinding, airflow is drawn in through the collection hole 32 and output through the exhaust plate 33. The airflow from the exhaust plate 33 impacts the workpiece surface, raising debris and preventing it from accumulating in the corners of the mold. The collection hole 32 collects the raised debris. The mold moves to the removal assembly, where the shot peening device sprays shot that impacts the mold surface, removing burrs. During the burr removal process, shot peening and recovery are performed alternately.

[0035] 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.

[0036] The above description is merely a preferred embodiment of the present invention and is 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 grinding device for mold production with automatic workpiece changing, characterized in that... The grinding device includes a grinding component (1), a removal component (2), a recycling component (3), a machine base (4), a material changing component (5), and an outer casing (6). The material changing component (5) and the machine base (4) are fixedly connected to the ground. The material changing component (5) is located on one side of the machine base (4). The outer casing (6) is fixedly connected to the machine base (4). The grinding component (1), the removal component (2), and the recycling component (3) are located inside the outer casing (6). The grinding component (1) is fixedly connected to the machine base (4). The recycling component (3) is fixedly connected to the grinding component (1). The removal component (2) is fixedly connected to the machine base (4). One end of the grinding component (1) extends into the removal component (2). The grinding assembly (1) includes a crossbeam frame (11), a translation module (12), a lifting module (13), a shifting module (14), a grinding unit (15), and a fixed table (16); The grinding unit (15) includes a drive box (151), a drive shaft (152), a drive sleeve (153), a grinding wheel (154), and a guide sleeve (155). The drive box (151) is fastened to the displacement platform of the lifting module (13). The drive shaft (152), the drive sleeve (153), and the drive box (151) are rotatably connected. The drive shaft (152) and the drive sleeve (153) are rotatably connected. The end of the drive shaft (152) away from the drive box (151) is fastened to the grinding wheel (154). The guide sleeve (155) and the end of the drive sleeve (153) away from the drive box (151) are fastened together. The grinding wheel (154) includes a grinding wheel layer (1541), a fixed layer (1542), and an adjusting component. Multiple sets of the adjusting component are provided. The grinding wheel layer (1541) and the fixed layer (1542) are fastened together. The fixed layer (1542) and the drive shaft (152) are fastened together. The adjusting component includes an adjusting cavity (1543), a counterweight (1544), a pressure spring (1545), and a heat transfer plate (1546). The adjusting cavity (1543) is located inside the fixed layer (1542). A heat exchange plate (1546) is disposed inside the grinding wheel layer (1541). A heat-conducting rod is disposed between the adjustment cavity (1543) and the heat exchange plate (1546). The counterweight (1544) is slidably connected to the adjustment cavity (1543). The pressure spring (1545) is disposed inside the adjustment cavity (1543) on the side near the drive shaft (152). One end of the pressure spring (1545) is fastened to the counterweight (1544), and the other end of the pressure spring (1545) is fastened to the side wall of the adjustment cavity (1543).

2. The grinding device for mold production with automatic workpiece changing according to claim 1, characterized in that... The crossbeam frame (11), the shifting module (14) and the machine base (4) are fastened together; the translation module (12) and the crossbeam frame (11) are fastened together; the lifting module (13) and the movable platform of the translation module (12) are fastened together; the grinding unit (15) and the displacement platform of the lifting module (13) are fastened together; and the fixed platform (16) and the displacement platform of the shifting module (14) are fastened together.

3. The grinding device for mold production with automatic workpiece changing according to claim 2, characterized in that... The guide sleeve (155) is arc-shaped and fits around the outside of the grinding wheel (154). There is a gap between the inner wall of the guide sleeve (155) and the grinding wheel (154). The inner wall of the guide sleeve (155) is provided with an arc-shaped guide surface (1551) and a suction block (1552). The suction block (1552) is located in the middle of the guide sleeve (155). There are suction ports on both sides of the suction block (1552). The suction block (1552) is connected to an external negative pressure pipe. The arc-shaped guide surface (1551) is located on both sides of the suction block (1552). The arc-shaped guide surface (1551) protrudes towards the grinding wheel (154). There are multiple sets of arc-shaped guide surfaces (1551), and the multiple sets of arc-shaped guide surfaces (1551) are connected end to end.

4. A grinding device for mold production with automatic workpiece changing according to claim 3, characterized in that... The removal component (2) includes a cover box (21), a storage chamber (22), a shot peening device (23), and an electrode plate (24). The cover box (21) and the machine base (4) are fastened together. An opening is provided on one side of the cover box (21). The shifting module (14) extends into the cover box (21). The storage chamber (22) is located on the upper side of the inner wall of the cover box (21). The shot peening device (23) and the storage chamber (22) are fastened together. The electrode plate (24) and the machine base (4) are fastened together. A negative ion generator is provided at the connection between the storage chamber (22) and the shot peening device (23).

5. A grinding device for mold production with automatic workpiece changing according to claim 4, characterized in that... The recycling component (3) includes a clamping plate (31), a collection hole (32), an exhaust plate (33), and a push cylinder (34). The clamping plate (31) and the fixed platform (16) are slidably connected. The push cylinder (34) and the fixed platform (16) are fastened together. The output shaft of the push cylinder (34) is fastened together with the clamping plate (31). The upper side of the clamping plate (31) is provided with a collection hole (32). Multiple collection holes (32) are provided. Holes (32) are evenly arranged along the clamping plate (31). The upper end of the collection hole (32) is horizontally set. There are two sets of clamping plates (31) and air outlet plates (33). The two sets of clamping plates (31) are respectively set on both sides of the fixed platform (16). The two sides of the fixed platform (16) without clamping plates (31) are tightly connected to the air outlet plates (33). The upper end of the air outlet plate (33) is provided with an air outlet hole. The air outlet hole is inclined towards the middle of the fixed platform (16).

6. A grinding device for mold production with automatic workpiece changing according to claim 5, characterized in that... The material changing assembly (5) includes a feeding line (51), a discharging line (52), and an auxiliary robotic arm (53). The feeding line (51), the discharging line (52), and the auxiliary robotic arm (53) are fixedly connected to the ground. An automatic door is provided on the outer casing (6). The feeding line (51) and the discharging line (52) are located on the side of the outer casing (6) where the automatic door is located. The auxiliary robotic arm (53) is located in the middle of the feeding line (51) and the discharging line (52). A material-picking suction cup is provided on the auxiliary robotic arm (53).

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