Milling cutter grinding device

Abstract

The utility model relates to the technical field of milling cutter machining, and discloses a milling cutter grinding device which comprises a protection box and a heat dissipation shell, a motor is fixedly installed on the inner wall of the heat dissipation shell, a first rotating shaft is fixedly installed at the output end of the motor and penetrates through the outer wall of the protection box through a bearing, and a grinding wheel is fixedly installed on the outer wall of the first rotating shaft. A rotating sleeve is arranged to shield the exposed part of the top of the protection box, a through hole is formed to enable a milling cutter to extend into the protection box for grinding, a groove and a convex ring are arranged to enable the rotating sleeve to rotate relative to the protection box, a sliding block capable of moving along a limiting groove is utilized to drive a rotating block to move, and a rotating block capable of rotating relative to the sliding block is utilized to drive the milling cutter to rotate. The position of the milling cutter relative to the grinding wheel can be changed according to the grinding part, different parts of the milling cutter are ground, channels communicating with the outside in the protection box are reduced, and then the probability that chippings splash to the outside is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutter processing, in particular to a milling cutter grinding device. Background Art

[0002] Milling cutters are cutting tools usually used in milling machines or processing machines to perform milling operations (sometimes in other machine tools). They remove material by their fixed feed rate in the machine. Milling cutters are produced with a rough surface, which requires grinding of the milling cutter surface;

[0003] The existing Chinese patent CN211249372U discloses a high-efficiency milling cutter grinding device, which reduces the possibility of safety accidents for operators by installing a protective box under the grinding wheel, and does not cause the debris generated by grinding to splash around, thereby improving safety. The material receiving box at the bottom of the protective box can collect the debris, thereby facilitating cleaning;

[0004] However, in order to facilitate the user to grind the milling cutter, the top of the protective box in the above-mentioned efficient milling cutter grinding device is exposed. When the milling cutter is ground, the debris generated by the grinding will fly everywhere, and a large amount of debris will fly out from the top of the protective box. Utility Model Content

[0005] The purpose of the utility model is to provide a milling cutter grinding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a milling cutter grinding device, comprising a protective box and a heat dissipation shell, a motor is fixedly installed on the inner wall of the heat dissipation shell, a rotating shaft 1 is fixedly installed on the output end of the motor, the rotating shaft 1 passes through the outer wall of the protective box through a bearing, a grinding wheel is fixedly installed on the outer wall of the rotating shaft 1, and a protective mechanism is arranged inside the protective box;

[0007] The protection mechanism includes a recycling box and a groove. The recycling box is fixedly installed at the bottom of the protection box, and the interior of the recycling box is connected to the interior of the groove. The groove is located on the inner wall of the protection box. The inner wall of the groove is slidably provided with a convex ring, and the outer wall of the convex ring is fixedly provided with a rotating sleeve. The rotating sleeve is slidably provided in the protection box, and the rotating sleeve blocks the exposed space at the top of the protection box. A limiting groove is provided on the top of the rotating sleeve, and a sliding block is slidably provided on the inner wall of the limiting groove. The inner wall of the sliding block is rotatably connected to a second rotating shaft through a bearing, and a rotating block is fixedly installed on the end of the second rotating shaft, and a through hole is provided on the top of the rotating block.

[0008] Furthermore, a cooling fan is fixedly installed on the left outer wall of the heat dissipation shell, and a hose is connected to the right inner wall of the heat dissipation shell. The right end of the hose is fixedly connected to the inner wall of the rotating sleeve, and the right end of the hose extends into the protective box.

[0009] Furthermore, a notch is provided in the lower half of the rotating sleeve, and a box door is fixedly installed on the right outer wall of the protective box.

[0010] Furthermore, blocking pieces are fixedly mounted on the left and right outer walls of the sliding block, and a gap is left between the lower surface of the blocking piece and the upper surface of the rotating sleeve.

[0011] Furthermore, the gap between the left and right outer walls of the rotating block and the inner wall of the sliding block is greater than the thickness of the rotating block.

[0012] Furthermore, a second box door is provided on the front of the recycling box, and a ventilation hole is provided on the side outer wall of the recycling box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. A rotating sleeve is provided to cover the exposed part of the top of the protective box, a through hole is provided for inserting the milling cutter into the protective box for grinding, a groove and a convex ring are provided so that the rotating sleeve can rotate relative to the protective box, and a sliding block that can move along the limit groove is used to drive the rotating block to move, and a rotating block that can rotate relative to the sliding block is used, so that the position of the milling cutter relative to the grinding wheel can be changed according to the grinding part, and while grinding different parts of the milling cutter, the channel connecting the inside of the protective box with the outside world is reduced, thereby reducing the probability of debris splashing to the outside world;

[0015] 2. Use the cooling fan to blow air into the protective box to dissipate heat from the motor. The airflow will also enter the protective box through the hose, blowing the debris generated during the grinding process away from the milling cutter, further reducing the probability of debris entering the limit groove and through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the heat dissipation housing of the utility model;

[0018] Figure 3 This is a schematic diagram of the right side cross-sectional view of the protective box of the utility model;

[0019] Figure 4 This is a schematic diagram of the exploded view structure of the protection mechanism of the utility model;

[0020] Figure 5It is a schematic diagram of the exploded view structure of the sliding block and the rotating block of the utility model.

[0021] In the figure: 1. protective box; 2. heat dissipation shell; 3. motor; 4. rotating shaft 1; 5. cooling fan; 6. grinding wheel; 7. protective mechanism; 701. recovery box; 702. rotating sleeve; 703. groove; 704. convex ring; 705. limiting groove; 706. sliding block; 707. rotating block; 708. rotating shaft 2; 709. through hole; 8. box door 1; 9. notch; 10. baffle; 11. hose; 12. vent; 13. box door 2. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a milling cutter grinding device, comprising a protective box 1, a heat dissipation shell 2, a motor 3 is fixedly installed on the inner wall of the heat dissipation shell 2, a rotating shaft 4 is fixedly installed on the output end of the motor 3, the rotating shaft 4 passes through the outer wall of the protective box 1 through a bearing, a grinding wheel 6 is fixedly installed on the outer wall of the rotating shaft 4, and a protective mechanism 7 is arranged inside the protective box 1;

[0024] The protection mechanism 7 includes a recycling box 701 and a groove 703. The recycling box 701 is fixedly installed at the bottom of the protection box 1, and the interior of the recycling box 701 is connected to the interior of the groove 703. The groove 703 is located on the inner wall of the protection box 1. The inner wall of the groove 703 is slidably provided with a convex ring 704. The outer wall of the convex ring 704 is fixedly provided with a rotating sleeve 702. The rotating sleeve 702 is slidably provided in the protection box 1, and the rotating sleeve 702 blocks the exposed space at the top of the protection box 1. A limiting groove 705 is provided on the top of the rotating sleeve 702. A sliding block 706 is slidably provided on the inner wall of the limiting groove 705. The inner wall of the sliding block 706 is rotatably connected to a rotating shaft 708 through a bearing. A rotating block 707 is fixedly installed at the end of the rotating shaft 708. A through hole 709 is provided on the top of 07, and a rotating sleeve 702 is provided to cover the exposed part of the top of the protective box 1. The through hole 709 is provided for inserting the milling cutter into the protective box 1 for grinding. The groove 703 and the convex ring 704 are provided so that the rotating sleeve 702 can rotate relative to the protective box 1. The sliding block 706 that can move along the limiting groove 705 drives the rotating block 707 to move, and the rotating block 707 that can rotate relative to the sliding block 706 makes it possible to change the position of the milling cutter relative to the grinding wheel 6 according to the grinding part. While grinding different parts of the milling cutter, the channel connecting the inside of the protective box 1 with the outside is reduced, thereby reducing the probability of debris splashing to the outside. The left outer wall of the heat dissipation shell 2 is fixedly installed with a heat dissipation fan 5. The heat dissipation shell 2 is connected with a hose 11, the right end of the hose 11 is fixedly connected to the inner wall of the rotating sleeve 702, and the right end of the hose 11 extends into the protective box 1, and the cooling fan 5 is used to blow air into the protective box 1 to dissipate heat for the motor 3, and the airflow will also enter the protective box 1 through the hose 11, blowing the debris generated during the grinding process away from the milling cutter, further reducing the probability of the debris entering the limiting groove 705 and the through hole 709, and the lower half of the rotating sleeve 702 is provided with a notch 9, so that the debris generated by the grinding can fall from the notch 9 into the recovery box 701, and the right outer wall of the protective box 1 is fixedly installed with a box door 8, which is used to open the protective box 1 when replacing the grinding wheel 6, and the left and right outer walls of the sliding block 706 are fixed A baffle 10 is fixedly installed, and a gap is left between the lower surface of the baffle 10 and the upper surface of the rotating sleeve 702. The baffle 10 is set to block the limiting groove 705 to prevent debris from splashing out from the limiting groove 705, and the gap between the baffle 10 and the upper surface of the rotating sleeve 702 can avoid friction between the baffle 10 and the rotating sleeve 702 without affecting the function of blocking the limiting groove 705. The gap between the left and right outer walls of the rotating block 707 and the inner wall of the sliding block 706 is greater than the thickness of the rotating block 707 to prevent the rotating block 707 from being stuck by the inner wall of the sliding block 706 when the rotating block 707 is rotated. A box door 13 is set on the front of the recycling box 701 for taking out the debris in the recycling box 701, and a vent hole 12 is opened on the side outer wall of the recycling box 701.The airflow entering the protection box 1 can be discharged from the vent hole 12, so as to achieve the purpose of using the airflow to blow the debris into the recovery box 701.

[0025] Working principle: When in use, the milling cutter is inserted from the through hole 709 so that the end of the milling cutter to be ground contacts the grinding wheel 6. The cooling fan 5 is turned on at the same time as the motor 3, so that the cooling fan 5 dissipates heat for the motor 3. The motor 3 drives the rotating shaft 4 to rotate, and then drives the grinding wheel 6 to rotate to grind the end of the milling cutter. When the grinding position needs to be changed, the rotating block 707 can be pushed to rotate around the axis of the rotating shaft 2 708, or the sliding block 706 can be pulled to move along the limiting groove 705, or the rotating sleeve 702 can be pushed to rotate, thereby changing the position and angle of the milling cutter relative to the grinding wheel 6 to ensure the grinding effect. At the same time, the airflow blown into the protective box 1 by the cooling fan 5 enters the protective box 1 from the hose 11, and blows the debris generated by grinding into the recovery box 701. The debris can be taken out by opening the box door 2 13.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A milling cutter grinding device, comprising a protective box (1) and a heat dissipation housing (2), characterized in that: A motor (3) is fixedly mounted on the inner wall of the heat dissipation housing (2); a rotating shaft (4) is fixedly mounted on the output end of the motor (3); the rotating shaft (4) passes through the outer wall of the protection box (1) via a bearing; a grinding wheel (6) is fixedly mounted on the outer wall of the rotating shaft (4); and a protection mechanism (7) is provided inside the protection box (1); The protection mechanism (7) comprises a recovery box (701) and a groove (703); the recovery box (701) is fixedly mounted at the bottom of the protection box (1), and the interior of the recovery box (701) is connected to the interior of the groove (703); the groove (703) is located on the inner wall of the protection box (1); a convex ring (704) is slidably arranged on the inner wall of the groove (703); a rotating sleeve (702) is fixedly mounted on the outer wall of the convex ring (704); and the rotating sleeve (702) is slidably arranged on the protection box (1). The protective box (1) is inside the protective box, and the rotating sleeve (702) covers the exposed space on the top of the protective box (1). The top of the rotating sleeve (702) is provided with a limit groove (705), and the inner wall of the limit groove (705) is slidably provided with a sliding block (706). The inner wall of the sliding block (706) is rotatably connected to a second rotating shaft (708) through a bearing. A rotating block (707) is fixedly installed at the end of the second rotating shaft (708), and a through hole (709) is provided on the top of the rotating block (707).

2. A milling cutter grinding device according to claim 1, characterized in that: A cooling fan (5) is fixedly mounted on the left outer wall of the heat dissipation housing (2), and a hose (11) is connected to the right inner wall of the heat dissipation housing (2). The right end of the hose (11) is fixedly connected to the inner wall of the rotating sleeve (702), and the right end of the hose (11) extends into the protective box (1).

3. A milling cutter grinding device according to claim 1, characterized in that: A notch (9) is provided in the lower half of the rotating sleeve (702), and a box door (8) is fixedly mounted on the right outer wall of the protection box (1).

4. A milling cutter grinding device according to claim 1, characterized in that: Blocking plates (10) are fixedly mounted on the left and right outer walls of the sliding block (706), and a gap is left between the lower surface of the blocking plate (10) and the upper surface of the rotating sleeve (702).

5. A milling cutter grinding device according to claim 1, characterized in that: The gap between the left and right outer walls of the rotating block (707) and the inner wall of the sliding block (706) is greater than the thickness of the rotating block (707).

6. A milling cutter grinding device according to claim 1, characterized in that: The front of the recovery box (701) is provided with a second box door (13), and the side outer wall of the recovery box (701) is provided with a ventilation hole (12).

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