Cutter grinding device for numerical control milling machine

Abstract

The utility model discloses a cutter grinding device for a numerical control milling machine, which relates to the technical field of cutter grinding and comprises a grinding frame and a grinding wheel body and further comprises a protective cover fixedly mounted on the upper surface of the grinding frame, and a half part of the grinding wheel body is positioned in the protective cover and used for collecting chippings generated during cutter grinding; and a bearing is rotationally arranged on the inner wall of the opening of the protective cover, and a connecting rod is fixedly arranged on the outer wall of the bearing. The protective cover is arranged below the grinding wheel body, the grinding assembly is arranged in the protective cover, after the grinding wheel body is abraded due to a notch, the grinding assembly is attached to the two sides of the grinding wheel body, the bearing is rotated, the bearing drives the grinding assembly through the connecting rod to grind the edge of the grinding wheel body, and the position with the notch is ground to be flat; and the polishing assembly rotates with the middle of the grinding wheel body as the center for polishing, and polishing is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cutter grinding, especially to a cutter grinding device for numerical control milling machine. BACKGROUND

[0002] In the modern mechanical processing field, the cutter grinding quality of numerical control milling machine as important processing equipment directly influences processing precision and efficiency, when the existing cutter grinds, mostly through abrasive wheel polishing, but abrasive wheel will appear gap on the abrasive wheel in the polishing process, and the uneven grinding lines on the cutter surface will be caused by continuing polishing, thereby influencing cutter cutting performance. UTILITY MODEL CONTENT

[0003] The utility model discloses a cutter grinding device for numerical control milling machine, which solves the problem of the prior art that the cutter grinding device does not have a gap in the abrasive wheel.

[0004] To solve the problems in the prior art, the utility model adopts the following technical scheme:

[0005] A cutter grinding device for numerical control milling machine, comprising a grinding frame and an abrasive wheel body, further comprising:

[0006] A protective cover is fixedly installed on the upper surface of the grinding frame, and the abrasive wheel body is located in the protective cover, which is used to collect the debris generated during cutter polishing.

[0007] A polishing assembly is used to polish the abrasive wheel body, a bearing is rotatably arranged on the inner wall of the opening of the protective cover, and a connecting rod is fixedly arranged on the outer wall of the bearing, which is used to drive the polishing assembly to rotate around the center of the middle part of the abrasive wheel body.

[0008] Preferably, the polishing assembly comprises a fixed frame, two polishing stones are symmetrically arranged in the fixed frame, two limiting rods are fixedly arranged on one side of each polishing stone, and the limiting rods pass through the fixed frame.

[0009] Preferably, two springs are fixedly arranged on one side of each polishing stone, a screw rod is threadedly arranged at each end of the fixed frame, a connecting piece is rotatably arranged at the end of each screw rod, and one end of each spring is fixedly connected with the connecting piece.

[0010] Preferably, a support is fixedly arranged on the inner wall of the protective cover, a partition plate is fixedly arranged on the upper end of the support, and a connecting block is fixedly arranged on the lower surface of each polishing stone.

[0011] Preferably, a first gear is sleeved on the outer wall of the bearing, a second gear is rotatably arranged on the inner wall of the opening of the protective cover, a handle is fixedly arranged at the center of the second gear, and the first gear and the second gear are engaged.

[0012] Preferably, the grinding frame upper surface is fixed with a support frame, the support frame upper end is fixed with a motor, and the motor output end is fixedly connected with the grinding wheel body center.

[0013] Preferably, the protective cover rectangular end opening is connected with an air suction fan.

[0014] Compared with the prior art, the grinding frame has the beneficial effects that:

[0015] 1. In the utility model, the grinding wheel body is provided below the protective cover, the polishing assembly is arranged in the protective cover, the polishing assembly is initially not in contact with the grinding wheel body, when the grinding wheel body appears notch wear, the polishing assembly is attached to the two sides of the grinding wheel body, the rotating bearing drives the polishing assembly to polish the edge of the grinding wheel body through the connecting rod, the position appearing notch is polished flat, and the polishing assembly rotates around the middle part of the grinding wheel body to polish, so that the polishing is more convenient.

[0016] 2. In the utility model, the air suction fan is installed at the end of the protective cover, the suction force generated by the air suction fan is used to suck the chippings generated during polishing into the protective cover, so that the chippings are collected, and the grinding frame hygiene is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the application. The illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0018] Figure 1 It is the overall structure schematic view of the utility model;

[0019] Figure 2 It is the internal structure schematic view of the protective cover of the utility model;

[0020] Figure 3 It is the first gear and second gear structure schematic view of the utility model;

[0021] Figure 4 It is the polishing assembly structure schematic view of the utility model;

[0022] Figure 5 It is the connecting block and baffle connecting structure schematic view of the utility model.

[0023] In the drawing, serial number: 1, grinding frame; 11, grinding wheel body; 12, protective cover; 13, bearing; 14, connecting rod; 2, polishing assembly; 21, fixed frame; 22, polishing stone; 23, limiting rod; 3, spring; 31, screw rod; 32, connecting sheet; 4, connecting block; 41, support; 42, baffle; 5, first gear; 51, second gear; 52, handle; 6, support frame; 61, motor; 7, air suction fan. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0025] Embodiment: the embodiment provides a tool grinding device for numerical control milling machine, see Figures 1-5 , specifically, including grinding frame 1 and grinding wheel body 11, further including: the protective cover 12 fixedly installed on the upper surface of the grinding frame 1, half of the grinding wheel body 11 is located in the protective cover 12, for collecting the debris generated when grinding the tool;Polishing assembly 2 is used for polishing the grinding wheel body 11, the inner wall of the opening of the protective cover 12 is rotatably provided with a bearing 13, and the outer wall of the bearing 13 is fixedly provided with a connecting rod 14, for driving the polishing assembly 2 to rotate with the middle part of the grinding wheel body 11 as the center;

[0026] The opening of the protective cover 12 faces upwards, and half of the grinding wheel body 11 is located in the protective cover 12, the grinding wheel body 11 is placed below the tool when grinding the tool, the debris generated during polishing falls into the protective cover 12 for collection, and the polishing assembly 2 is located in the protective cover 12 and does not contact the grinding wheel body 11, when the grinding wheel body 11 appears gap wear, the polishing assembly 2 is attached to both sides of the grinding wheel body 11, the bearing 13 is driven by the connecting rod 14 to polish the edge of the grinding wheel body 11, and the position with gap is polished flat, and the polishing assembly 2 rotates with the middle part of the grinding wheel body 11 as the center to polish, so that polishing is more convenient.

[0027] In the specific implementation process, as shown in Figure 2 and Figure 5 , the polishing assembly 2 includes a fixed frame 21, two polishing stones 22 are symmetrically arranged in the fixed frame 21, two limiting rods 23 are fixedly arranged on one side of each polishing stone 22, and the limiting rods 23 pass through the fixed frame 21.

[0028] During polishing, the two polishing stones 22 are attached to both sides of the grinding wheel body 11, the bearing 13 drives the fixed frame 21 to rotate through the connecting rod 14, the fixed frame 21 drives the two polishing stones 22 inside to move, and the edge of the grinding wheel body 11 is polished through the polishing stone 22, the polishing stone 22 moves back and forth at the gap of the grinding wheel body 11 during polishing, so that the precision of the grinding wheel body 11 is improved.

[0029] In the specific implementation process, as shown in Figure 3 and Figure 4As shown, the polishing stone 22 is fixed with two springs 3 on one side, and the fixed frame 21 is threadedly provided with a screw rod 31 at both ends, and the screw rod 31 is rotatably provided with a connecting plate 32 at the end, and one end of the spring 3 is fixedly connected with the connecting plate 32.

[0030] The two polishing stones 22 are attached to the grinding wheel body 11 by the pushing force of the spring 3, and the screw rod 31 is moved along the fixed frame 21 by rotating the screw rod 31, and the connecting plate 32 is pushed to move at the end of the screw rod 31, and the connecting plate 32 pushes the spring 3 to move, changes the distance between the connecting plate 32 and the polishing stone 22, controls the pushing force of the spring 3, and adjusts the force of the polishing stone 22 contacting the grinding wheel body 11 according to the condition of the grinding wheel body 11.

[0031] In the specific implementation process, as shown in Figure 2 and Figure 5 , the inner wall of the protective cover 12 is fixedly provided with a support 41, and the upper end of the support 41 is fixedly provided with a partition plate 42, and the lower surface of the polishing stone 22 is fixedly provided with a connecting block 4.

[0032] The partition plate 42 is located in the protective cover 12 below the grinding wheel body 11, and is aligned with the grinding wheel body 11, and when the polishing stone 22 is rotated to the lower side, the connecting block 4 of the polishing stone 22 is in contact with the inclined surface of the partition plate 42, and the connecting block 4 will move to both sides of the partition plate 42, and the connecting block 4 will drive the polishing stone 22 to move along the fixed frame 21 to both ends, and the polishing stone 22 is separated from the grinding wheel body 11, and the polishing stone 22 is stopped at the position of the partition plate 42, facilitating the grinding wheel body 11 to grind the tool.

[0033] In the specific implementation process, as shown in Figure 3 and Figure 4 , the outer wall of the bearing 13 is sleeved with a first gear 5, and the inner wall of the opening of the protective cover 12 is rotatably provided with a second gear 51, and the center of the second gear 51 is fixedly provided with a handle 52, and the first gear 5 and the second gear 51 are engaged.

[0034] The second gear 51 is driven to rotate by the handle 52, the first gear 5 is driven to rotate by the second gear 51, the bearing 13 is driven to rotate by the first gear 5, the fixed frame 21 is driven to move by the connecting rod 14, and the polishing stone 22 in the fixed frame 21 grinds the grinding wheel body 11.

[0035] In the specific implementation process, as shown in Figure 1 , the upper surface of the grinding frame 1 is fixedly provided with a support frame 6, and the upper end of the support frame 6 is fixedly provided with a motor 61, and the output end of the motor 61 is fixedly connected with the center of the grinding wheel body 11; the grinding wheel body 11 is driven to rotate by the motor 61, and the grinding wheel body 11 is driven.

[0036] In the specific implementation process, as shown in Figure 1As shown, the dust cover 12 rectangular end opening is connected with the suction fan 7; through the suction fan 7 generates suction, the chippings generated during polishing are absorbed into the dust cover 12, the chippings are collected, and the health condition of the grinding frame 1 is improved.

[0037] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art within the technical range disclosed by the present application, according to the technical scheme and the utility model concept of the present application, equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A tool grinding device for a CNC milling machine, comprising a grinding frame (1) and a grinding wheel body (11), characterized in that: Also includes: A protective cover (12) is fixedly mounted on the upper surface of the grinding frame (1), wherein half of the grinding wheel body (11) is located within the protective cover (12) and is used to collect debris generated when the tool is ground; A grinding assembly (2) is used for grinding a grinding wheel body (11); a bearing (13) is rotatably provided on the inner wall of the opening of the protective cover (12); a connecting rod (14) is fixedly provided on the outer wall of the bearing (13) for driving the grinding assembly (2) to rotate around the middle of the grinding wheel body (11).

2. The tool grinding device for a CNC milling machine according to claim 1, characterized in that: The grinding assembly (2) comprises a fixed frame (21), two grinding stones (22) are symmetrically slidably arranged in the fixed frame (21), two limiting rods (23) are fixedly arranged on one side of the two grinding stones (22), and the limiting rods (23) pass through the fixed frame (21).

3. The tool grinding device for a CNC milling machine according to claim 2, characterized in that: Two springs (3) are fixedly provided on one side of the grinding stone (22); screw rods (31) are threadedly provided at both ends of the fixing frame (21); connecting pieces (32) are rotatably provided at the ends of the screw rods (31); and one end of the spring (3) is fixedly connected to the connecting piece (32).

4. The tool grinding device for a CNC milling machine according to claim 2, characterized in that: A bracket (41) is fixedly provided on the inner wall of the protective cover (12), a partition (42) is fixedly provided on the upper end of the bracket (41), and a connecting block (4) is fixedly provided on the lower surface of the grinding stone (22).

5. The tool grinding device for a CNC milling machine according to claim 1, characterized in that: The outer wall of the bearing (13) is sleeved with a first gear (5), the inner wall of the opening of the protective cover (12) is rotatably provided with a second gear (51), the center of the second gear (51) is fixedly provided with a turning handle (52), and the first gear (5) and the second gear (51) are meshed.

6. The tool grinding device for a CNC milling machine according to claim 1, characterized in that: A support frame (6) is fixedly provided on the upper surface of the grinding frame (1), a motor (61) is fixedly provided on the upper end of the support frame (6), and an output end of the motor (61) is fixedly connected to the center of the grinding wheel body (11).

7. The tool grinding device for a CNC milling machine according to claim 1, characterized in that: The rectangular end opening of the protective cover (12) is connected to a suction fan (7).

Images