Automatic milling cutter grinding machine

Abstract

The utility model relates to milling cutter repair and grinding technical field discloses automatic milling cutter grinder, including bottom plate, be equipped with the installation module for installing milling cutter on the bottom plate, first polishing mechanism and second polishing mechanism who polish milling cutter in proper order, still be equipped with a plurality of respectively drive installation module, first polishing mechanism and second polishing mechanism linear movement's driving piece on the bottom plate, the installation module includes installation shaft and be used for driving the rotation motor of installation shaft rotation, first polishing mechanism includes the rotatable first polishing disc of inclination arrangement, second polishing mechanism includes the rotatable second polishing disc of horizontal arrangement. The utility model intends to realize the automatic repair and grinding of milling cutter.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter regrinding technology, specifically to an automatic milling cutter regrinding machine. Background Technology

[0002] Milling cutters are widely used cutting tools in the machining field, primarily for milling various metal and non-metal materials. After prolonged and intensive use, the cutting edges of milling cutters inevitably wear. This wear not only alters the geometry of the cutting edge, leading to increased cutting forces and temperatures, but also severely affects the quality and precision of the machined surface, reducing machining efficiency and increasing production costs. Especially in the precision mold manufacturing industry, if worn milling cutters are not re-sharpened promptly, the dimensional accuracy and surface roughness of the mold cavity may exceed design requirements, resulting in mold scrap and significant economic losses for the company. Therefore, to ensure that milling cutters maintain good cutting performance and guarantee machining accuracy and product quality, regular re-sharpening is an essential step.

[0003] Currently, end mill regrinding methods are mainly divided into two types: manual regrinding and traditional mechanical regrinding. Manual regrinding relies entirely on the experience and feel of skilled workers, using handheld tools on ordinary grinding wheels, making it difficult to guarantee the quality and consistency of the regrinding. Traditional mechanical regrinding uses some simple mechanical equipment to complete the end mill regrinding work. Most of these devices can only complete a single process, and the regrinding process still requires a lot of manual intervention from skilled workers, such as adjusting the installation position of the end mill, controlling the regrinding time and pressure, etc. This not only increases the labor intensity of the operators, but also makes it easy for regrinding errors to occur due to human factors, affecting the quality of the end mill regrinding.

[0004] In summary, existing end mill regrinding methods generally suffer from problems such as limited functionality, low automation, cumbersome operation, and unstable regrinding quality. These issues severely restrict the efficiency and quality of end mill regrinding, failing to meet the needs of large-scale, high-efficiency production in enterprises, and also failing to meet the high efficiency and high precision requirements of modern machining industries for end mill regrinding. Utility Model Content The present invention aims to provide an automatic milling cutter regrinding machine to achieve automatic milling cutter regrinding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic milling cutter regrinding machine includes a base plate, on which is provided a mounting module for mounting milling cutters, a first grinding mechanism and a second grinding mechanism for sequentially grinding milling cutters, and a plurality of driving components for linear movement of the mounting module, the first grinding mechanism and the second grinding mechanism respectively. The mounting module includes a mounting shaft and a rotary motor for driving the mounting shaft to rotate. The first grinding mechanism includes an inclined rotatable first grinding disc, and the second grinding mechanism includes a horizontally rotatable second grinding disc.

[0006] The principle and advantages of this scheme are: 1. The milling cutter is mounted on the mounting module. A rotary motor drives the milling cutter to rotate, and a first grinding mechanism grinds the cutting edge of the milling cutter. With the cooperation of the rotary motor and the driving components of the first grinding mechanism, the grinding of all the cutting edges of the milling cutter is completed automatically in a cyclic manner. Finally, a second grinding mechanism grinds the back of the cutting edge of the milling cutter. With the cooperation of the rotary motor and the driving components of the mounting module, the grinding of the back of all the cutting edges of the milling cutter is completed automatically in a cyclic manner. The operator only needs to complete the loading and unloading of the milling cutter, and the automatic grinding machine can complete all the grinding work of the milling cutter, which greatly reduces manual intervention and realizes the automatic grinding of the milling cutter.

[0007] 2. The installation module, the first grinding mechanism, and the second grinding mechanism are all independent modules, which facilitates the maintenance, upgrading, and troubleshooting of each part; and the milling cutter can be regrinded twice in one clamping, avoiding the accuracy problems caused by multiple clamping, reducing the number of clamping processes, and improving the regrinding accuracy of the milling cutter.

[0008] 3. The grinding of the milling cutter edge is divided into edge grinding and back edge grinding, and corresponding motion trajectories are set, making the function of the grinding disc more specialized and improving the grinding effect.

[0009] Preferably, as an improvement, the mounting module is horizontally movable on the base plate via a drive component.

[0010] Technical benefits: The above-mentioned setup facilitates the automatic entry of the milling cutter into the grinding station, avoids the movement of the first and second grinding mechanisms, and gives them a fixed station, thus simplifying the structure and layout of the entire equipment.

[0011] Preferably, as an improvement, the mounting module further includes a movable seat and a mounting base. The movable seat is connected to the driving component, the mounting base is disposed on the top of the movable seat, one end of the mounting shaft is rotatably connected to the mounting base, and the rotary motor is fixed on the mounting base, with the driving end of the rotary motor fixedly connected to the end of the mounting shaft.

[0012] Technical effect: The above-mentioned configuration separates linear motion from rotary motion. The moving base is responsible for receiving the linear motion of the driving component, and the mounting base supports the rotary indexing operation, ensuring that the milling cutter has good rigidity and stability during both movement and rotation.

[0013] Preferably, as an improvement, the mounting shaft is provided with multiple keys along the circumference, the mounting shaft is fitted with an annular limiting ring on the outer side, and the end of the mounting shaft is detachably connected with a clamping end cap.

[0014] Technical benefits: The above-mentioned configuration ensures that there is no circumferential rotation between the milling cutter and the mounting shaft, thus avoiding scrap caused by tool slippage during grinding. The limiting ring and the clamping end cap form a bidirectional axial lock from both sides of the milling cutter, preventing the milling cutter from moving axially on the mounting shaft. This keeps the milling cutter in a stable position during grinding, improving grinding quality and safety.

[0015] Preferably, as an improvement, the first grinding mechanism is vertically and elliptically mounted on the base via a drive component, and a first reinforcing seat is provided on one side of the drive component.

[0016] Technical effect: The above-mentioned configuration in this solution strengthens the drive component, enhances its load-bearing capacity when driving the first grinding mechanism, and effectively suppresses possible vibration and deformation.

[0017] Preferably, as an improvement, the first polishing mechanism further includes a first polishing box, a first rotating shaft, and a first motor. The first polishing box is connected to a driving component. The first rotating shaft is horizontally inclined and one end is rotatably connected to the first polishing box. The other end of the first rotating shaft is fixedly connected to the first polishing disc. The first motor is fixed on the first polishing box, and the driving end of the first motor is fixedly connected to the end of the first rotating shaft.

[0018] Technical effect: The above-mentioned settings in this solution facilitate the side of the first grinding disc to fit against the cutting edge of the milling cutter, thereby achieving precise grinding of the milling cutter's cutting edge.

[0019] Preferably, as an improvement, the second grinding mechanism is telescopically disposed within the lifting seat, which is vertically and vertically disposed on the base via a driving component, and a second reinforcing seat is provided on one side of the driving component.

[0020] Technical effect: The above-mentioned configuration in this solution strengthens the drive component, enhancing its ability to withstand vibrations and deformations during the lifting of the lifting seat and the grinding of the second grinding mechanism.

[0021] Preferably, as an improvement, the second polishing mechanism further includes a second polishing box, a second motor, and a second rotating shaft. The second polishing box is telescopically disposed within the lifting seat. The second rotating shaft is vertically disposed, with its top end rotatably connected to the second polishing box and its bottom end fixedly connected to the second polishing disc. The second motor is fixed to the top of the first polishing box, and the drive end of the second motor is fixedly connected to the top end of the second rotating shaft.

[0022] Technical effect: The above-mentioned settings facilitate the lateral movement of the second grinding disc, adapting to the grinding of milling cutters with different radius specifications.

[0023] Preferably, as an improvement, the lifting base is provided with a telescopic motor, a gear and a rack. One end of the lifting base has a cavity for the second grinding box to move. The gear is rotatably provided in the cavity. Both sides of the gear are meshed with racks. The racks are slidably connected to a sliding groove at the bottom of the cavity. One end of the racks is fixedly connected to the second grinding box. The telescopic motor is fixed to the top of the lifting base, and the drive end of the telescopic motor drives the gear to rotate.

[0024] Technical benefits: The above-mentioned configuration facilitates precise control of the feed rate of the second grinding disc, and the racks on both sides balance the torque during transmission, preventing jamming and ensuring smooth, wobbly movement of the second grinding box during horizontal extension and retraction. Attached Figure Description Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0025] Figure 2 This is a side view of an embodiment of the present utility model.

[0026] Figure 3 This is an internal sectional view of the lifting seat of this utility model.

[0027] The reference numerals in the accompanying drawings include: base plate 1, drive component 2, mounting module 3, moving seat 31, mounting seat 32, rotary motor 33, mounting shaft 34, limit ring 341, key 342, clamping end cover 343, first grinding mechanism 4, first grinding box 41, first rotating shaft 42, first grinding disc 43, first motor 44, first reinforcing seat 5, second grinding mechanism 6, second grinding box 61, second motor 62, second rotating shaft 63, second grinding disc 64, lifting seat 7, telescopic motor 71, gear 72, rack 73, slide groove 74, and second reinforcing seat 8. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method: Example The basics are as follows: Figure 1-3 As shown: An automatic milling cutter regrinding machine includes a base plate 1, on which a mounting module 3 for mounting milling cutters, a first grinding mechanism 4 and a second grinding mechanism 6 for sequentially grinding the milling cutters, are provided. The first grinding mechanism 4 grinds the cutting edge of the milling cutter, and the second grinding mechanism 6 grinds the back side of the cutting edge of the milling cutter. The base plate 1 is also provided with multiple driving components 2 that drive the mounting module 3, the first grinding mechanism 4 and the second grinding mechanism 6 to move linearly. In this embodiment, the driving component 2 used is an existing lead screw sliding mechanism, that is, a motor drives the lead screw to rotate, the rotation of the lead screw drives the slider to move linearly, and the slider then drives the above-mentioned components to move linearly.

[0029] like Figure 1 As shown, the mounting module 3 is horizontally movable on the base plate 1 via the driving component 2. The mounting module 3 includes a movable base 31, a mounting base 32, a mounting shaft 34, and a rotary motor 33 for driving the mounting shaft 34 to rotate. The movable base 31 is fixedly connected to the slider of the driving component 2. The mounting base 32 is located on top of the movable base 31. One end of the mounting shaft 34 is rotatably connected to the mounting base 32. The rotary motor 33 is fixed on the mounting base 32, and its driving end is fixedly connected to the end of the mounting shaft 34. The rotary motor 33 drives the mounting shaft 34 to rotate, thereby rotating the milling cutter on the mounting shaft 34. In this embodiment, the rotary motor 33 is a brushless servo motor, which can drive the milling cutter to rotate at a fixed angle, allowing the first grinding mechanism 4 and the second grinding mechanism 6 to grind the cutting edge of the milling cutter sequentially.

[0030] Furthermore, the mounting shaft 34 is provided with multiple keys 342 along the circumference. The position and number of keys 342 match the keyway on the side wall of the inner shaft hole of the milling cutter, which is used to restrict the circumferential movement between the milling cutter and the mounting shaft 34. An annular limiting ring 341 is sleeved on the outer side of the mounting shaft 34. A clamping end cap 343 is detachably connected to the end of the mounting shaft 34. Here, a threaded connection is used. The limiting ring 341 and the clamping end cap 343 are located on both sides of the milling cutter, which serves to fix the milling cutter and prevent axial movement between the milling cutter and the mounting shaft 34.

[0031] The first grinding mechanism 4 is vertically and flexibly mounted on the base via a drive component 2, and a first reinforcing seat 5 is provided on one side of the drive component 2. The first grinding mechanism 4 includes a first grinding disc 43, a first grinding box 41, a first rotating shaft 42, and a first motor 44. The first grinding box 41 is fixedly connected to the slider of the drive component 2. The first rotating shaft 42 is horizontally inclined, with one end rotatably connected to the first grinding box 41 and the other end fixedly connected to the first grinding disc 43, so that the first grinding disc 43 is inclined relative to the tangent of the milling cutter, matching the inclined cutting edge of the milling cutter. The first motor 44 is fixed on the first grinding box 41, and the drive end of the first motor 44 is fixedly connected to the end of the first rotating shaft 42, driving the first rotating shaft 42 to rotate, thereby driving the first grinding disc 43 to rotate for grinding operation. The thickness of the first grinding disc 43 is greater than the width of the cutting edge. Because the first rotating shaft 42 is tilted, a trapezoidal pad is provided between the first motor 44 and the first grinding box 41, so that the axis of the motor drive shaft coincides with the axis of the first rotating shaft 42.

[0032] The second grinding mechanism 6 is retractably mounted within the lifting seat 7. The lifting seat 7 is vertically mounted on the base via a drive component 2, and a second reinforcing seat 8 is provided on one side of the drive component 2. The lifting seat 7 is equipped with a telescopic motor 71, a gear 72, and a rack 73. One end of the lifting seat 7 has a cavity for the second grinding box 61 to extend and retract. Figure 3 As shown, a gear 72 is rotatably installed inside the cavity. A rack 73 meshes with both sides of the gear 72. The rack 73 is slidably connected to a groove 74 opened at the bottom of the cavity. One end of the rack 73 is fixedly connected to the second grinding box 61. A telescopic motor 71 is fixed to the top of the lifting seat 7. The drive end of the telescopic motor 71 passes through the top of the movable seat 31 and is fixedly connected to the gear 72. The drive gear 72 rotates, and the rotation of the gear 72 causes the gears 72 on both sides to move in the groove 74, thereby causing the second grinding box 61 to extend and retract within the cavity of the lifting seat 7.

[0033] The second polishing mechanism 6 includes a second polishing disc 64, a second polishing box 61, a second motor 62, and a second rotating shaft 63. The second polishing box 61 is telescopically mounted in the cavity of the lifting seat 7. The second rotating shaft 63 is vertically mounted, with its top end rotatably connected to the second polishing box 61 and its bottom end fixedly connected to the second polishing disc 64. The second motor 62 is fixed to the top of the first polishing box 41, and its drive end is fixedly connected to the top end of the second rotating shaft 63, driving the second rotating shaft 63 to rotate, thereby causing the second polishing disc 64 to rotate for polishing operations.

[0034] In actual use, the milling cutter to be ground needs to be installed on the mounting shaft 34 first. During installation, first unscrew the clamping end cap 343 from the mounting shaft 34, and then pass the mounting shaft 34 through the shaft hole of the milling cutter. At this time, the multiple keys 342 on the mounting shaft 34 are aligned with the keyway in the shaft hole of the milling cutter. The milling cutter moves axially along the mounting shaft 34 and is installed in place when it abuts against the limiting ring 341. Then, the clamping end cap 343 is installed at the shaft end of the mounting shaft 34, so that the limiting ring 341 and the clamping end cap 343 fix the milling cutter from the left and right sides. The drive unit 2 first moves the milling cutter linearly to the first grinding mechanism 4. The first motor 44 drives the first grinding disc 43 to rotate. The drive unit 2 moves the first grinding disc 43 down to grind the milling cutter cutting edge. After grinding the first cutting edge, the drive unit 2 moves the first grinding disc 43 up. The rotary motor 33 moves the milling cutter to rotate at a certain angle so that the next cutting edge is in the grinding position. Then the drive unit 2 moves the first grinding disc 43 down again to grind the next cutting edge of the milling cutter. This process is repeated until each cutting edge of the milling cutter is ground. Then, the drive unit 2 moves the milling cutter linearly to the second grinding mechanism 6. The second belt motor drives the second grinding disc 64 to rotate, and the drive unit 2 lowers the second grinding disc 64 to a suitable grinding position, that is, at the same height as the axis of the milling cutter. The telescopic motor 71 drives the second grinding disc 64 to move towards the milling cutter to grind the back of the milling cutter's cutting edge. After grinding the first surface, the drive unit 2 moves the milling cutter to a position offset from the second grinding disc 64. Then, the rotary motor 33 drives the milling cutter to rotate a certain angle so that the back of the next cutting edge is in the grinding position. Then, the drive unit 2 drives the milling cutter past the second grinding disc 64 to complete the grinding of the second surface. The rotary motor 33 then drives the milling cutter to rotate a certain angle again, and the drive unit 2 then drives the milling cutter past the second grinding disc 64 to complete the grinding of the third surface. This cycle continues until the back of each cutting edge of the milling cutter is ground. That is, the grinding of the milling cutter is complete.

[0035] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An automatic milling cutter shaving machine, including a base plate, characterized in that: The base plate is provided with a mounting module for mounting milling cutters, a first grinding mechanism and a second grinding mechanism for sequentially grinding milling cutters, and a plurality of driving components for linear movement of the mounting module, the first grinding mechanism and the second grinding mechanism respectively. The mounting module includes a mounting shaft and a rotary motor for driving the mounting shaft to rotate. The first grinding mechanism includes an inclined rotatable first grinding disc, and the second grinding mechanism includes a horizontally rotatable second grinding disc.

2. The automatic milling cutter regrinding machine according to claim 1, characterized in that: The mounting module is horizontally movable on the base plate via a driving component.

3. The automatic milling cutter regrinding machine according to claim 2, characterized in that: The installation module also includes a movable base and a mounting base. The movable base is connected to the drive component, the mounting base is disposed on the top of the movable base, one end of the mounting shaft is rotatably connected to the mounting base, and the rotary motor is fixed on the mounting base, with the drive end of the rotary motor fixedly connected to the end of the mounting shaft.

4. The automatic milling cutter regrinding machine according to claim 3, characterized in that: The mounting shaft has multiple keys along its circumference, and an annular limiting ring is fitted on the outer side of the mounting shaft. A clamping end cap is detachably connected to the end of the mounting shaft.

5. The automatic milling cutter regrinding machine according to claim 1, characterized in that: The first grinding mechanism is vertically mounted on the base via a drive component, and a first reinforcing seat is provided on one side of the drive component.

6. The automatic milling cutter regrinding machine according to claim 5, characterized in that: The first polishing mechanism further includes a first polishing box, a first rotating shaft, and a first motor. The first polishing box is connected to a driving component. The first rotating shaft is horizontally inclined and one end is rotatably connected to the first polishing box. The other end of the first rotating shaft is fixedly connected to the first polishing disc. The first motor is fixed on the first polishing box, and the driving end of the first motor is fixedly connected to the end of the first rotating shaft.

7. The automatic milling cutter regrinding machine according to claim 1, characterized in that: The second grinding mechanism is telescopically mounted inside the lifting seat, which is mounted on the base via a drive component, and a second reinforcing seat is provided on one side of the drive component.

8. The automatic milling cutter regrinding machine according to claim 7, characterized in that: The second polishing mechanism also includes a second polishing box, a second motor, and a second rotating shaft. The second polishing box is telescopically mounted inside the lifting seat. The second rotating shaft is vertically mounted. The top end of the second rotating shaft is rotatably connected to the second polishing box. The bottom end of the second rotating shaft is fixedly connected to the second polishing disc. The second motor is fixed to the top of the first polishing box, and the drive end of the second motor is fixedly connected to the top end of the second rotating shaft.

9. The automatic milling cutter regrinding machine according to claim 8, characterized in that: The lifting base is equipped with a telescopic motor, a gear, and a rack. One end of the lifting base has a cavity for the second grinding box to move. The gear is rotatably installed in the cavity. Both sides of the gear are meshed with racks. The racks are slidably connected to a sliding groove at the bottom of the cavity. One end of the racks is fixedly connected to the second grinding box. The telescopic motor is fixed to the top of the lifting base, and the drive end of the telescopic motor drives the gear to rotate.

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