Grinding equipment and grinding method for metal cutting milling cutter machining

Abstract

The invention discloses grinding equipment and a grinding method for metal cutting milling cutter machining, and relates to the technical field of grinding machine tools. The grinding equipment for metal cutting milling cutter machining comprises a grinding machine base, a spindle box is fixedly connected to the top of the grinding machine base, a chuck is movably connected to the right side of the spindle box, and a movable seat is movably connected to the position, located on the right side of the spindle box, of the top of the grinding machine base. According to the grinding equipment and the grinding method for metal cutting milling cutter machining, an air supply motor drives a spiral plate to rotate, so that the spiral plate continuously feeds external air into a splash guard through an air supply pipe, and air flow is formed to be blown to a diamond grinding wheel; and cooling liquid on the surface of the diamond grinding wheel and loose abrasive particles and chippings on the surface can be blown to the right side to be away from the surface of the diamond grinding wheel, so that the to-be-ground surface of the diamond grinding wheel is kept clean, the abrasive particles and chippings are prevented from participating in grinding to influence the surface quality of the milling cutter, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding machine tools, and particularly to a grinding device and a grinding method for machining metal cutting milling cutters. Background Art

[0002] A milling cutter is a tool used for milling machining, made of cemented carbide, etc., with a sharp cutting edge, capable of precisely milling planes, contours, grooves, etc., and is widely used in machining.

[0003] The patent with the application number CN201420800238.8 discloses a milling cutter grinding device, including a machine base, on which two symmetrically arranged grinding assemblies, clamping assemblies and adjustment assemblies are provided. The grinding assembly includes a motor, a transmission belt, a gearbox and a grinding wheel. The power input end of the gearbox is connected to the power output end of the motor through the transmission belt, and the grinding wheel is installed at the power output end of the gearbox. The clamping assembly includes a connecting rod and a clamping head, and one end of the connecting rod is connected to the clamping head;

[0004] Using a diamond grinding wheel to polish tungsten steel to process a tungsten steel rod into a milling cutter. As the diamond grinding wheel continues to polish, the abrasive grains on the surface of the diamond grinding wheel will become loose and then fall off during polishing, resulting in defects on the polished surface, and further causing the milling cutter to need to be re-ground, affecting the processing efficiency. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a grinding device and a grinding method for machining metal cutting milling cutters to solve the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A grinding device for machining metal cutting milling cutters, including a grinding machine base, a spindle box is fixedly connected to the top of the grinding machine base, a chuck is movably connected to the right side of the spindle box, a moving seat is movably connected to the top of the grinding machine base on the right side of the spindle box, a grinding slider is movably connected to the top of the moving seat, a diamond grinding wheel is movably connected to the front of the grinding slider, a coolant tank is provided at the bottom of the grinding machine base, a hydraulic pump is fixedly connected to the back of the coolant tank, a spray head is fixedly connected to the left side of the grinding slider, and the spray head is fixedly connected to the hydraulic pump through a pipeline. A cooling and particle removal mechanism is fixedly connected to the outer wall of the grinding slider, and a recovery mechanism is fixedly connected to the top of the moving seat at the bottom of the diamond grinding wheel;

[0007] The cooling and particle removal mechanism includes:

[0008] A splash guard, which is fixedly connected to the top of the grinding slider outside the diamond grinding wheel;

[0009] An air supply pipe, which is fixedly connected to the outer wall of the splash guard at the top of the diamond grinding wheel;

[0010] An air supply motor, which is fixedly connected to the left side of the air supply pipe;

[0011] A spiral plate, which is arranged inside the air supply motor and fixedly connected to the output shaft of the air supply motor.

[0012] Preferably, an internal partition is fixedly connected to the inside of the splash guard outside the diamond grinding wheel, and a diversion groove is fixedly connected to the bottom of the splash guard on the right side of the diamond grinding wheel.

[0013] Preferably, several side plates are fixedly connected to both the front and back of the diamond grinding wheel, and openings corresponding to the side plates are arranged on the outer wall of the splash guard.

[0014] Preferably, a flow channel outer plate is movably connected to the outer wall of the diversion groove, and a heat conduction plate is fixedly connected to the side of the diversion groove close to the diamond grinding wheel.

[0015] Preferably, the recycling mechanism includes a recycling box, which is fixedly connected to the top of the moving seat at the bottom of the diamond grinding wheel. A filter plate is fixedly connected to the inside of the recycling box, and the bottom of the recycling box penetrates through the moving seat and is connected to the top of the coolant tank through a pipeline.

[0016] Preferably, a separation motor is fixedly connected to the bottom of the filter plate inside the recycling box, a fan blade is fixedly connected to the top of the separation motor, and an exhaust pipe is fixedly connected to the outer wall of the recycling box.

[0017] Preferably, a sweeping plate is arranged on the top of the filter plate, and the sweeping plate is fixedly connected to the fan blade. A discharge channel is fixedly connected to the outer wall of the recycling box. A collection groove is fixedly connected to the top of the grinding machine base in front of the moving seat. A centralized pushing plate is arranged inside the collection groove on the right side of the discharge channel, and the centralized pushing plate is fixedly connected to the moving seat.

[0018] A grinding method for a grinding device for machining a metal cutting milling cutter:

[0019] S1. First, inspect the tungsten steel rod, and select qualified tungsten steel rods for step differences;

[0020] S2. Subsequently, use a chuck to clamp and fix the tungsten steel rod after step differences, and move the moving seat to a suitable position on the top of the grinding machine base. Then, the grinding slider descends to a suitable position, and the diamond grinding wheel is driven to rotate counterclockwise to grind and edge the tungsten steel plate.

[0021] S3. After the tungsten steel rod is edged, it becomes a semi-finished milling cutter. Subsequently, the semi-finished milling cutter is removed from the chuck, and the outer surface of the semi-finished milling cutter is cleaned.

[0022] S4. After the cleaning is completed, passivate the semi-finished milling cutter.

[0023] The present invention provides a grinding device and a grinding method for metal cutting milling cutters, having the following beneficial effects:

[0024] 1. For the grinding device and the grinding method for metal cutting milling cutters, the air supply motor drives the spiral plate to rotate, so that the spiral plate continuously sends the external air into the splash guard through the air supply pipe, forming an air flow to blow towards the diamond grinding wheel. The coolant on the surface of the diamond grinding wheel, as well as the loose abrasive grains and debris on the surface, will be blown to the right, blowing them off the surface of the diamond grinding wheel, keeping the surface to be polished of the diamond grinding wheel clean, avoiding the abrasive grains and debris from participating in the grinding and affecting the quality of the surface of the milling cutter, and thus improving the processing efficiency.

[0025] 2. For the grinding device and the grinding method for metal cutting milling cutters, when the fan blades rotate, the air at the top will be pushed into the bottom of the recovery box, making the coolant on top of the filter plate pass through the filter plate faster. At the same time, the air pressure at the bottom of the fan blades will increase, which will accelerate the pushing of the coolant inside the recovery box into the coolant tank, and make the abrasive grains and debris move into the collection groove through the discharge channel, and push the debris and abrasive grains to the left side of the collection groove for concentration through the centralized push plate, facilitating the later treatment, improving the utilization rate of the coolant, and avoiding frequent shutdowns to replenish the coolant to improve the processing efficiency.

[0026] 3. For the grinding device and the grinding method for metal cutting milling cutters, the flowing air will push the coolant mixed with abrasive grains and debris outside the diamond grinding wheel to the outside. At the same time, the air flowing on the side of the diamond grinding wheel will cool the diamond grinding wheel. The coolant flows downward through the diversion groove, the outer plate of the flow groove will absorb the heat of the coolant, and the air flow blowing downward along the diversion groove will dissipate the heat of the outer plate of the flow groove, enabling the outer plate of the flow groove to better absorb the heat of the coolant, thereby reducing the temperature of the recovered coolant and enabling the coolant to better dissipate heat.

[0027] 4. For the grinding device and the grinding method for metal cutting milling cutters, when the coolant flows from the heat conduction plate into the recovery box, the cooling will quickly flow towards the filter plate under the push of the air flow, making the coolant have a downward speed. The coolant will pass through the filter of the filter plate inside the recovery box, allowing the clean coolant to pass through the filter plate. The quickly flowing coolant can be filtered faster through the filter plate. At the same time, the blocked substances on the filter plate will be flushed away to the surroundings to reduce the blockage and enhance the recovery efficiency of the coolant, thereby indirectly improving the processing efficiency from the side. Description of the Drawings

[0028] Figure 1Schematic diagram of the front view three-dimensional structure of the present invention;

[0029] Figure 2 is Figure 1 Schematic diagram of the enlarged structure of part A in

[0030] Figure 3 is Figure 1 Schematic diagram of the enlarged structure of part B in

[0031] Figure 4 Schematic diagram of the dorsal three-dimensional structure of the present invention;

[0032] Figure 5 is Figure 4 Schematic diagram of the enlarged structure of part C in

[0033] Figure 6 Schematic diagram of the sectional structure of the splash guard of the present invention;

[0034] Figure 7 Schematic diagram of the bottom view three-dimensional structure of the present invention;

[0035] Figure 8 Schematic diagram of the top view three-dimensional structure of the present invention;

[0036] Figure 9 is Figure 8 Schematic diagram of the enlarged structure of part D in

[0037] Figure 10 Schematic diagram of the sectional structure of the recovery box of the present invention.

[0038] In the figure: 1. Grinder base; 2. Headstock; 3. Chuck; 4. Moving seat; 5. Grinding slider; 6. Diamond grinding wheel; 71. Coolant tank; 72. Hydraulic pump; 73. Spray head; 8. Cooling and particle removal mechanism; 801. Splash guard; 802. Air supply pipe; 803. Air supply motor; 804. Spiral plate; 805. Internal partition; 806. Side plate; 807. Flow guide groove; 808. Heat conduction plate; 809. Outer plate of the flow groove; 9. Recovery mechanism; 901. Recovery box; 902. Filter plate; 903. Separation motor; 904. Fan blade; 905. Discharge channel; 906. Sweeping plate; 907. Exhaust pipe; 908. Collection tank; 909. Central pushing plate. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0040] Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0041] Embodiment 1: Please refer to Figures 1-6 , the present invention provides a technical solution: a grinding device for machining a metal cutting milling cutter, including a grinding machine base 1, a spindle box 2 is fixedly connected to the top of the grinding machine base 1, a chuck 3 is movably connected to the right side of the spindle box 2, a driving device for driving the spindle to rotate is arranged inside the spindle box 2, and the chuck 3 is rotated by driving the spindle to rotate. A moving seat 4 is movably connected to the top of the grinding machine base 1 on the right side of the spindle box 2, a grinding slider 5 is movably connected to the top of the moving seat 4, a motor for driving the grinding slider 5 to rotate is arranged inside the moving seat 4, a diamond grinding wheel 6 is movably connected to the front of the grinding slider 5, a coolant tank 71 is arranged at the bottom of the grinding machine base 1, a hydraulic pump 72 is fixedly connected to the back of the coolant tank 71, a spray head 73 is fixedly connected to the left side of the grinding slider 5, and the spray head 73 is fixedly connected to the hydraulic pump 72 through a pipeline. A cooling and particle removal mechanism 8 is fixedly connected to the outer wall of the grinding slider 5, and a recovery mechanism 9 is fixedly connected to the top of the moving seat 4 below the diamond grinding wheel 6;

[0042] The cooling and particle removal mechanism 8 includes:

[0043] A splash guard 801, the splash guard 801 is fixedly connected to the top of the grinding slider 5 outside the diamond grinding wheel 6;

[0044] An air supply pipe 802, the air supply pipe 802 is fixedly connected to the outer wall of the splash guard 801 above the diamond grinding wheel 6;

[0045] An air supply motor 803, the air supply motor 803 is fixedly connected to the left side of the air supply pipe 802;

[0046] A spiral plate 804, the spiral plate 804 is arranged inside the air supply motor 803, and the spiral plate 804 is fixedly connected to the output shaft of the air supply motor 803.

[0047] First, inspect the tungsten carbide rod, select the qualified tungsten carbide rod for step difference, and then use the chuck 3 to clamp and fix the tungsten carbide rod after step difference. Then, move the moving seat 4 to a suitable position on the top of the grinding machine base 1. Subsequently, the grinding slider 5 descends to a suitable position, and drives the diamond grinding wheel 6 to rotate counterclockwise to grind and edge the tungsten carbide plate. During the grinding process, the hydraulic pump 72 continuously pumps out the coolant in the coolant tank 71 and sprays it out from the spray head 73 to cool the grinding position. At the same time, the air supply motor 803 drives the spiral plate 804 to rotate, and the spiral plate 804 continuously sends the external air into the splash guard 801 through the air supply pipe 802 to form an air flow that blows towards the diamond grinding wheel 6. It will blow the coolant, loose abrasive grains and debris on the surface of the diamond grinding wheel 6 to the right, blowing them off the surface of the diamond grinding wheel 6, keeping the surface of the diamond grinding wheel 6 to be ground clean. At the same time, the blowing air flow passes through the surface of the diamond grinding wheel 6, which can play a role in cooling the diamond grinding wheel 6.

[0048] The tungsten carbide rod after edge grinding is a semi-finished milling cutter. Then, remove the semi-finished milling cutter from the chuck 3 and clean the outer surface of the semi-finished milling cutter.

[0049] After cleaning, passivate the semi-finished milling cutter.

[0050] An internal partition 805 is fixedly connected to the outside of the diamond grinding wheel 6 inside the splash guard 801, and a diversion groove 807 is fixedly connected to the bottom of the splash guard 801 on the right side of the diamond grinding wheel 6.

[0051] When the diamond grinding wheel 6 rotates, part of the coolant mixed with abrasive grains and debris on its surface will be separated from the surface of the diamond grinding wheel 6 under the action of centrifugal force. The internal partition 805 will play a role in blocking its splash, and the internal partition 805 will also play a role as a compressed air flow channel, making the air flow faster from the top of the internal partition 805. Under the guidance of the splash guard 801, the air flow moves downward along the diversion groove 807. At the same time, the diversion groove 807 will also block the coolant thrown out when the diamond grinding wheel 6 works, preventing the splash of the coolant.

[0052] A plurality of side plates 806 are fixedly connected to both the front and back of the diamond grinding wheel 6, and the outer wall of the splash guard 801 is provided with openings corresponding to the side plates 806.

[0053] When the diamond grinding wheel 6 rotates, it will drive the side plates 806 on its outer wall to rotate together. The side plates 806 will play a role in pushing the air outward, allowing the air to flow into the splash guard 801 through the openings. The flowing air will play a role in pushing the coolant mixed with abrasive grains and debris outside the diamond grinding wheel 6 outward. At the same time, the air flowing on the side of the diamond grinding wheel 6 will play a role in cooling the diamond grinding wheel 6.

[0054] The outer wall of the diversion channel 807 is movably connected to the outer plate 809 of the flow channel, and a heat conducting plate 808 is fixedly connected to one side of the diversion channel 807 close to the diamond grinding wheel 6.

[0055] The coolant will flow downward through the diversion channel 807, and then pass through the heat conducting plate 808. The outer plate 809 of the flow channel will absorb the heat of the coolant, and the air flow blowing downward along the diversion channel 807 will dissipate the heat of the outer plate 809 of the flow channel, enabling the outer plate 809 of the flow channel to better absorb the heat of the coolant.

[0056] Embodiment 2: Please refer to Figures 1-10 , based on Embodiment 1, the present invention provides a technical solution:

[0057] The recycling mechanism 9 includes a recycling box 901, which is fixedly connected to the top of the moving seat 4 and located at the bottom of the diamond grinding wheel 6. A filter plate 902 is fixedly connected inside the recycling box 901, and the bottom of the recycling box 901 penetrates through the moving seat 4 and is connected to the top of the coolant tank 71 through a pipeline.

[0058] The coolant flows into the interior of the recycling box 901 through the heat conducting plate 808, and will quickly flow towards the filter plate 902 under the push of the cooling air flow, enabling the coolant to have a downward velocity. The coolant will pass through the filtration of the filter plate 902 inside the recycling box 901, allowing the clean coolant to pass through the filter plate 902. The quickly flowing coolant can be filtered faster through the filter plate 902, and at the same time, the blocked substances on the filter plate 902 will be flushed away in all directions to reduce blockage. Then the coolant will flow back into the interior of the coolant tank 71 through the pipeline at the bottom of the recycling box 901, and then be pumped out again by the hydraulic pump 72, enabling the coolant to be reused.

[0059] A separation motor 903 is fixedly connected to the bottom of the filter plate 902 inside the recycling box 901, a fan blade 904 is fixedly connected to the top of the separation motor 903, and an exhaust pipe 907 is fixedly connected to the outer wall of the recycling box 901.

[0060] When grinding and edge-opening are carried out, the separation motor 903 is synchronously rotated with the fan blade 904. The rotation of the fan blade 904 will push the air at the top into the bottom of the recycling box 901, enabling the coolant at the top of the filter plate 902 to pass through the filter plate 902 faster, and allowing the air at the bottom of the fan blade 904 to be discharged through the exhaust pipe 907. And because the fan blade 904 pushes the air at the top to the bottom, the air pressure at the bottom of the fan blade 904 will increase, and this increased air pressure will also play a role in accelerating the pushing of the coolant inside the recycling box 901 towards the interior of the coolant tank 71.

[0061] A sweeping plate 906 is provided at the top of the filter plate 902, and the sweeping plate 906 is fixedly connected to the fan blade 904. A discharge channel 905 is fixedly connected to the outer wall of the recycling box 901. A collection trough 908 is fixedly connected to the top of the grinder base 1 in front of the moving seat 4. A centralized pushing plate 909 is provided on the right side of the discharge channel 905 inside the collection trough 908, and the centralized pushing plate 909 is fixedly connected to the moving seat 4.

[0062] The debris and abrasive grains filtered on the top of the filter plate 902 will be pushed by the sweeping plate 906 driven by the fan blade 904, and under the action of centrifugal force, the abrasive grains and debris will move outward, and the abrasive grains and debris will move through the discharge channel 905 into the collection trough 908. As the moving seat 4 moves on the top of the grinder base 1, the moving seat 4 will push the debris and abrasive grains to the left side of the collection trough 908 through the centralized pushing plate 909 for concentration, which is convenient for later processing.

[0063] Embodiment 3: Please refer to Figures 1-10 , based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution:

[0064] A grinding method for a grinding device for machining a metal cutting milling cutter:

[0065] S1. First, inspect the tungsten steel rod, and select qualified tungsten steel rods for step difference.

[0066] S2. Subsequently, use the chuck 3 to clamp and fix the tungsten steel rod with step difference, and move the moving seat 4 to a suitable position on the top of the grinder base 1. Subsequently, the grinding slider 5 descends to a suitable position, and the diamond grinding wheel 6 is driven to rotate counterclockwise to grind and edge the tungsten steel plate.

[0067] S3. After the tungsten steel rod is edged, it is a semi-finished milling cutter. Subsequently, take the semi-finished milling cutter off the chuck 3 and clean the outer surface of the semi-finished milling cutter.

[0068] S4. After cleaning, passivate the semi-finished milling cutter.

[0069] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A grinding device for machining a metal cutting milling cutter, comprising a grinding machine base (1), characterized in that: At the top of the grinding machine base (1), a spindle box (2) is fixedly connected. On the right side of the spindle box (2), a chuck (3) is movably connected. On the top of the grinding machine base (1) and on the right side of the spindle box (2), a moving seat (4) is movably connected. On the top of the moving seat (4), a grinding slider (5) is movably connected. On the front of the grinding slider (5), a diamond grinding wheel (6) is movably connected. At the bottom of the grinding machine base (1), a coolant tank (71) is provided. On the back of the coolant tank (71), a hydraulic pump (72) is fixedly connected. On the left side of the grinding slider (5), a spray head (73) is fixedly connected, and the spray head (73) is fixedly connected to the hydraulic pump (72) through a pipeline. On the outer wall of the grinding slider (5), a cooling and particle removing mechanism (8) is fixedly connected. On the top of the moving seat (4) and at the bottom of the diamond grinding wheel (6), a recovery mechanism (9) is fixedly connected; The cooling and particle removing mechanism (8) includes: A splash guard (801), which is fixedly connected to the top of the grinding slider (5) outside the diamond grinding wheel (6); An air supply pipe (802), which is fixedly connected to the outer wall of the splash guard (801) on the top of the diamond grinding wheel (6); An air supply motor (803), which is fixedly connected to the left side of the air supply pipe (802); A spiral plate (804), which is arranged inside the air supply motor (803), and the spiral plate (804) is fixedly connected to the output shaft of the air supply motor (803).

2. The grinding equipment for machining a metal cutting milling cutter according to claim 1, wherein: Inside the splash guard (801) and outside the diamond grinding wheel (6), an internal partition plate (805) is fixedly connected. At the bottom of the splash guard (801) and on the right side of the diamond grinding wheel (6), a diversion groove (807) is fixedly connected.

3. The grinding equipment for machining a metal cutting milling cutter according to claim 2, characterized in that: On both the front and back of the diamond grinding wheel (6), several side plates (806) are fixedly connected, and openings corresponding to the side plates (806) are provided on the outer wall of the splash guard (801).

4. A grinding device for machining a metal cutting milling cutter according to claim 3, characterized in that: On the outer wall of the diversion groove (807), a flow groove outer plate (809) is movably connected. On the side of the diversion groove (807) close to the diamond grinding wheel (6), a heat conducting plate (808) is fixedly connected.

5. The grinding equipment for machining a metal cutting milling cutter according to claim 4, characterized in that: The recovery mechanism (9) includes a recovery box (901), which is fixedly connected to the top of the moving seat (4) at the bottom of the diamond grinding wheel (6). Inside the recovery box (901), a filter plate (902) is fixedly connected, and the bottom of the recovery box (901) penetrates through the moving seat (4) and is connected to the top of the coolant tank (71) through a pipeline.

6. The grinding equipment for machining a metal cutting milling cutter according to claim 5, characterized in that: Inside the recovery box (901) and at the bottom of the filter plate (902), a separation motor (903) is fixedly connected. On the top of the separation motor (903), a fan blade (904) is fixedly connected. On the outer wall of the recovery box (901), an exhaust pipe (907) is fixedly connected.

7. A grinding device for machining a metal cutting milling cutter according to claim 6, characterized in that: A sweeping plate (906) is provided at the top of the filter plate (902), and the sweeping plate (906) is fixedly connected to the fan blade (904). A discharge channel (905) is fixedly connected to the outer wall of the recycling box (901). A collection trough (908) is fixedly connected to the top of the grinder base (1) in front of the moving seat (4). A centralized pushing plate (909) is arranged inside the collection trough (908) on the right side of the discharge channel (905). The centralized pushing plate (909) is fixedly connected to the moving seat (4).

8. A grinding method for a grinding device using a metal cutting milling cutter according to claim 7, characterized in that: S1. First, inspect the tungsten steel rods, and select qualified tungsten steel rods for step differences; S2. Subsequently, use the chuck (3) to clamp and fix the tungsten steel rods with step differences, and move the moving seat (4) to a suitable position on the top of the grinder base (1). Then, lower the grinding slider (5) to a suitable position, and drive the diamond grinding wheel (6) to rotate counterclockwise to grind and edge the tungsten steel plate; S3. After the tungsten steel rods are edged, they are semi-finished milling cutters. Then, remove the semi-finished milling cutters from the chuck (3) and clean the outer surfaces of the semi-finished milling cutters; S4. After cleaning, passivate the semi-finished milling cutters.

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