Numerical control tool sharpener and tool sharpening method

Abstract

The invention discloses a numerical control tool sharpener and a tool sharpening method. The numerical control tool sharpener comprises a mounting base and a clamping mechanism. The first lead screw module driving mechanism is arranged on the mounting base and used for driving the first grinding mechanism to move in the Y-axis direction, the second lead screw module driving mechanism is used for driving the second grinding mechanism to move in the Y-axis direction, and the first grinding mechanism and the second grinding mechanism are the same in structure; the first grinding mechanism comprises a first base driven by the first lead screw module, a first linear guide rail arranged on the first base in the Z-axis direction, and a grinding assembly arranged on the first linear guide rail in a sliding mode. The first worm and gear is connected with the grinding assembly and the first base and used for driving the grinding assembly to ascend and descend; and the first hand wheel is arranged on the first base and used for driving the first worm and gear to conduct transmission. The polishing device has the advantages that polishing can be conducted through one or two of the first polishing mechanism and the second polishing mechanism at the same time, and the working efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the field of machine tools, in particular to a numerically controlled knife sharpening machine and a knife sharpening method. Background Art

[0002] CNC knife grinder is a CNC machine tool used for grinding knife shafts. Traditional CNC knife grinders are only equipped with one grinding mechanism, which makes the grinding efficiency limited during the grinding of the knife shaft, prolongs the grinding time and increases the work intensity.

[0003] In view of this, it is necessary to provide a numerical control knife sharpening machine and a knife sharpening method. Summary of the invention

[0004] The invention provides a numerically controlled knife sharpening machine and a knife sharpening method, which effectively solve the problem of low efficiency of the existing knife sharpening machines.

[0005] The technical solution adopted by the present invention is:

[0006] A CNC tool grinder comprises a mounting seat and a clamping mechanism arranged on the mounting seat, and also comprises a No. 1 grinding mechanism, a No. 2 grinding mechanism, a No. 1 screw module driving mechanism arranged on the mounting seat for driving the No. 1 grinding mechanism to move along the Y-axis direction, and a No. 2 screw module driving mechanism for driving the No. 2 grinding mechanism to move along the Y-axis direction. The No. 1 grinding mechanism and the No. 2 grinding mechanism have the same structure. The No. 1 grinding mechanism comprises a No. 1 seat driven by the No. 1 screw module, a No. 1 linear guide rail arranged on the No. 1 seat along the Z-axis direction, a grinding assembly slidably arranged on the No. 1 linear guide rail, a No. 1 worm gear connecting the grinding assembly and the No. 1 seat for driving the grinding assembly to rise and fall, and a No. 1 handwheel arranged on the No. 1 seat for driving the No. 1 worm gear transmission.

[0007] Furthermore, the grinding assembly includes an installation frame slidably connected to a No. 1 linear guide rail, a rotating shaft rotatably arranged on the installation frame along the Y-axis direction, a grinding wheel coaxially fixedly arranged at one end of the rotating shaft, a No. 1 driven pulley coaxially fixedly arranged at the other end of the rotating shaft, a No. 1 motor fixedly arranged on the installation frame, a No. 1 driving pulley coaxially fixedly arranged on the rotating shaft of the No. 1 motor, and a No. 1 synchronous belt transmission-connected to the No. 1 driving pulley and the No. 1 driven pulley.

[0008] Furthermore, the clamping mechanism includes a left positioning assembly arranged at one end of the side of the mounting seat and a right positioning assembly arranged at the other end of the side of the mounting seat, the left positioning assembly includes a No. 2 motor arranged on the mounting seat, a No. 2 driving pulley coaxially fixed on the output shaft of the No. 2 motor, a left clamping seat fixed on the mounting seat, a left positioning column rotatably arranged on the left clamping seat, a disc coaxially arranged on the left positioning column and a No. 2 driven pulley, a screw arranged on the disc, and a No. 2 synchronous belt transmission-connected to the No. 2 driving pulley and the No. 2 driven pulley.

[0009] Furthermore, the right positioning assembly includes a right clamping seat slidably arranged on the mounting seat along the Y-axis direction, a right positioning column rotatably arranged on the right clamping seat, a second worm gear connecting the mounting seat and the right clamping seat, and a second handwheel arranged on the mounting seat for driving the second worm gear transmission.

[0010] Furthermore, a No. 2 linear guide rail extending along the Y-axis direction is also provided on the mounting seat, and the No. 1 grinding mechanism and the No. 2 grinding mechanism are both slidably connected to the No. 2 linear guide rail.

[0011] The CNC tool sharpening method adopts the CNC tool sharpening machine, clamps the tool shaft to be sharpened by a clamping mechanism, then drives the No. 1 grinding mechanism to move to a predetermined position by a No. 1 screw drive module, drives the No. 2 grinding mechanism to move to a predetermined position by a No. 2 screw drive module, selects the No. 1 grinding mechanism and the No. 2 grinding mechanism to work at the same time or one of them, drives the No. 1 worm gear transmission by a No. 1 handwheel, so that the No. 1 worm gear drives the grinding assembly to rise and fall to the predetermined position for grinding.

[0012] The beneficial effect of the invention is that grinding can be performed simultaneously by one or both of the first grinding mechanism and the second grinding mechanism, which can effectively improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A front view of a CNC knife sharpening machine provided in an embodiment of the present application.

[0014] Figure 2 A top view of a CNC knife sharpener provided in an embodiment of the present application.

[0015] Figure 3 A schematic diagram of a grinding mechanism No. 1 of a CNC knife sharpener provided in an embodiment of the present application.

[0016] Figure 4 A schematic diagram of the left positioning assembly of a CNC knife sharpener provided in an embodiment of the present application.

[0017] Figure 5 A schematic diagram of the right positioning assembly of a CNC knife sharpener provided in an embodiment of the present application.

[0018] Markings in the figure are: 1. Grinding mechanism No. 1; 2. Grinding mechanism No. 2; 3. Screw module drive mechanism No. 1; 4. Screw module drive mechanism No. 2; 11. Seat No. 1; 12. Linear guide No. 1; 13. Grinding assembly; 14. Handwheel No. 1; 131. Mounting frame; 132. Rotating shaft; 133. Grinding wheel; 134. Synchronous belt No. 1; 135. Motor No. 1; 51. Left positioning assembly; 52. Right positioning assembly; 511. Motor No. 2; 512. Left clamping seat; 513. Left positioning column; 514. Screw; 515. Synchronous belt No. 2; 521. Right clamping seat; 522. Right positioning column; 523. Handwheel No. 2; 7. Linear guide No. 2; 8. Mounting seat. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, the CNC knife sharpener provided in the embodiment of the present application includes a mounting seat 8 and a clamping mechanism disposed on the mounting seat 8, and also includes a first grinding mechanism 1, a second grinding mechanism 2, a first screw module driving mechanism 3 disposed on the mounting seat 8 for driving the first grinding mechanism 1 to move along the Y-axis direction, and a second screw module driving mechanism 4 for driving the second grinding mechanism 2 to move along the Y-axis direction, wherein the first grinding mechanism 1 and the second grinding mechanism 2 have the same structure. Figure 3 As shown, the No. 1 grinding mechanism 1 includes a No. 1 seat 11 driven by a No. 1 screw module, a No. 1 linear guide 12 arranged on the No. 1 seat 11 along the Z-axis direction, a grinding assembly 13 slidably arranged on the No. 1 linear guide 12, a No. 1 worm gear connecting the grinding assembly 13 and the No. 1 seat 11 for driving the grinding assembly 13 to rise and fall, and a No. 1 handwheel 14 arranged on the No. 1 seat 11 for driving the No. 1 worm gear transmission.

[0021] In actual use, the shaft to be sharpened is clamped by the clamping mechanism, and then the first screw drive module drives the first grinding mechanism 1 to move to a predetermined position, and the second screw drive module drives the second grinding mechanism 2 to move to a predetermined position, and the first grinding mechanism 1 and the second grinding mechanism 2 are selected to work at the same time or one of them. The working principles of the first grinding mechanism 1 and the second grinding mechanism 2 are the same. When the first grinding mechanism 1 is working, the first handwheel 14 drives the first worm gear transmission, so that the first worm gear drives the grinding assembly 13 to rise and fall to the predetermined position for grinding.

[0022] In the above design, grinding can be performed simultaneously by one or both of the first grinding mechanism 1 and the second grinding mechanism 2, which can effectively improve work efficiency.

[0023] Specifically: Figure 3 As shown, the grinding assembly 13 includes a mounting frame 131 slidably connected to the No. 1 linear guide rail 12, a rotating shaft 132 rotatably arranged on the mounting frame 131 along the Y-axis direction, a grinding wheel 133 coaxially fixedly arranged at one end of the rotating shaft 132, a No. 1 driven pulley coaxially fixedly arranged at the other end of the rotating shaft 132, a No. 1 motor 135 fixedly arranged on the mounting frame 131, a No. 1 driving pulley coaxially fixedly arranged on the rotating shaft of the No. 1 motor 135, and a No. 1 synchronous belt 134 transmission-connected to the No. 1 driving pulley and the No. 1 driven pulley.

[0024] In actual use, the first hand wheel 14 is rotated to drive the first worm gear to make the installation frame 131 rise and fall. The first motor 135 drives the first driving pulley to rotate, and the first synchronous belt 134 drives the first driven pulley and the rotating shaft 132 to rotate, thereby realizing the rotation of the grinding wheel 133.

[0025] In the above design, the structural design and specific implementation method of the grinding assembly 13 facilitate rapid and stable grinding.

[0026] Specifically: Figure 1 , Figure 2 and Figure 4 As shown, the clamping mechanism includes a left positioning component 51 arranged at one end of the side of the mounting seat 8 and a right positioning component 52 arranged at the other end of the side of the mounting seat 8, the left positioning component 51 includes a No. 2 motor 511 arranged on the mounting seat 8, a No. 2 driving pulley coaxially fixed on the output shaft of the No. 2 motor 511, a left clamping seat 512 fixedly arranged on the mounting seat 8, a left positioning column 513 rotatably arranged on the left clamping seat 512, a disc coaxially arranged on the left positioning column 513 and a No. 2 driven pulley, a screw 514 arranged on the disc, and a No. 2 synchronous belt 515 drivingly connected to the No. 2 driving pulley and the No. 2 driven pulley.

[0027] It should be noted that a clamp is provided on one side of the bottom cutter shaft to be ground, and the clamp can move synchronously with the screw 514 after contacting.

[0028] In actual use, the bottom cutter shaft to be ground is clamped and positioned from both ends by the left positioning assembly 51 and the right positioning assembly 52, and then rotated and fed. The working principle of the left positioning assembly 51 is as follows: the positioning hole at the left end of the bottom cutter shaft to be ground is positioned by the left positioning column 513, and the second driving pulley is driven to rotate by the second motor 511, and the second driven pulley is driven to rotate synchronously under the transmission action of the second synchronous belt 515. When rotating, the disc drives the screw 514 to contact the angle on the outer wall of the bottom cutter shaft to be ground, and then drives the entire bottom cutter shaft to be ground to rotate.

[0029] In the above design, the structural design of the clamping mechanism facilitates the rotation of the bottom cutter shaft to be ground.

[0030] Specifically: Figure 1 , Figure 2 and Figure 5 As shown, the right positioning assembly 52 includes a right clamping seat 521 slidably set on the mounting seat 8 along the Y-axis direction, a right positioning column 522 rotatably set on the right clamping seat 521, a second worm gear connecting the mounting seat 8 and the right clamping seat 521, and a second handwheel 523 set on the mounting seat 8 for driving the second worm gear transmission.

[0031] In actual use, by rotating the No. 2 handwheel 523, the No. 2 worm gear is driven to drive the No. 2 worm gear to drive the right clamping seat 521 to move in the Y-axis direction, thereby realizing the change of the distance between the left positioning component 51 and the right positioning component 52, which is convenient for the discharge and removal of the polished workpiece or the clamping of the polished workpiece.

[0032] In the above design, the structural design and specific implementation method of the right positioning component 52 can effectively realize the discharge and collection of the polished workpiece or the clamping of the polished workpiece.

[0033] Specifically: Figure 2 As shown, the mounting seat 8 is also provided with a No. 2 linear guide rail 7 extending along the Y-axis direction, and the No. 1 grinding mechanism 1 and the No. 2 grinding mechanism 2 are both slidably connected to the No. 2 linear guide rail 7 .

[0034] In the above design, the design of the No. 2 linear guide rail 7 facilitates the No. 1 grinding mechanism 1 and the No. 2 grinding mechanism 2 to move more smoothly in the Y-axis direction.

[0035] The second embodiment provided by the present application is a CNC tool sharpening method, which adopts a CNC tool sharpening machine, clamps the tool shaft to be sharpened by a clamping mechanism, and then drives the No. 1 grinding mechanism 1 to move to a predetermined position through a No. 1 screw drive module, drives the No. 2 grinding mechanism 2 to move to a predetermined position through a No. 2 screw drive module, selects the No. 1 grinding mechanism 1 and the No. 2 grinding mechanism 2 to work at the same time or one of them, and drives the No. 1 worm gear transmission through the No. 1 handwheel 14, so that the No. 1 worm gear drives the grinding assembly 13 to rise and fall to the predetermined position for grinding.

[0036] In the above design, the grinding efficiency of the tool shaft can be improved.

[0037] To further explain in detail, it should be understood that the above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A numerically controlled knife sharpening machine, comprising a mounting seat (8) and a clamping mechanism arranged on the mounting seat (8), characterized in that: The invention also comprises a first grinding mechanism (1), a second grinding mechanism (2), a first screw module driving mechanism (3) arranged on a mounting seat (8) for driving the first grinding mechanism (1) to move along the Y-axis direction, and a second screw module driving mechanism (4) for driving the second grinding mechanism (2) to move along the Y-axis direction. The first grinding mechanism (1) and the second grinding mechanism (2) have the same structure. The first grinding mechanism (1) comprises a first seat (11) driven by the first screw module, a first linear guide rail (12) arranged on the first seat (11) along the Z-axis direction, a grinding assembly (13) slidably arranged on the first linear guide rail (12), a first worm gear connecting the grinding assembly (13) and the first seat (11) for driving the grinding assembly (13) to move up and down, and a first hand wheel (14) arranged on the first seat (11) for driving the first worm gear transmission.

2. The CNC knife sharpening machine according to claim 1, characterized in that: The grinding assembly (13) comprises a mounting frame (131) slidably connected to a No. 1 linear guide rail (12), a rotating shaft (132) rotatably arranged on the mounting frame (131) along the Y-axis direction, a grinding wheel (133) coaxially fixedly arranged at one end of the rotating shaft (132), a No. 1 driven pulley coaxially fixedly arranged at the other end of the rotating shaft (132), a No. 1 motor (135) fixedly arranged on the mounting frame (131), a No. 1 driving pulley coaxially fixedly arranged on the rotating shaft of the No. 1 motor (135), and a No. 1 synchronous belt (134) drivingly connected to the No. 1 driving pulley and the No. 1 driven pulley.

3. The CNC knife sharpening machine according to claim 1, characterized in that: The clamping mechanism comprises a left positioning assembly (51) arranged at one end of the side of the mounting seat (8) and a right positioning assembly (52) arranged at the other end of the side of the mounting seat (8), the left positioning assembly (51) comprising a No. 2 motor (511) arranged on the mounting seat (8), a No. 2 driving pulley coaxially fixedly arranged on the output shaft of the No. 2 motor (511), a left clamping seat (512) fixedly arranged on the mounting seat (8), a left positioning column (513) rotatably arranged on the left clamping seat (512), a disc coaxially arranged on the left positioning column (513) and a No. 2 driven pulley, a screw (514) arranged on the disc, and a No. 2 synchronous belt (515) drivingly connected to the No. 2 driving pulley and the No. 2 driven pulley.

4. The CNC knife sharpening machine according to claim 1, characterized in that: The right positioning assembly (52) comprises a right clamping seat (521) slidably arranged on the mounting seat (8) along the Y-axis direction, a right positioning column (522) rotatably arranged on the right clamping seat (521), a second worm gear connecting the mounting seat (8) and the right clamping seat (521), and a second hand wheel (523) arranged on the mounting seat (8) for driving the second worm gear transmission.

5. The CNC knife sharpening machine according to claim 1, characterized in that: The mounting seat (8) is also provided with a No. 2 linear guide rail (7) extending along the Y-axis direction, and the No. 1 grinding mechanism (1) and the No. 2 grinding mechanism (2) are both slidably connected to the No. 2 linear guide rail (7).

6. A CNC knife sharpening method, using a CNC knife sharpening machine according to any one of claims 1 to 5, characterized in that: The tool shaft to be sharpened is clamped by a clamping mechanism, and then the first screw drive module drives the first grinding mechanism (1) to move to a predetermined position, and the second screw drive module drives the second grinding mechanism (2) to move to a predetermined position, and the first grinding mechanism (1) and the second grinding mechanism (2) are selected to work simultaneously or one of them, and the first hand wheel (14) drives the first worm gear transmission, so that the first worm gear drives the grinding assembly (13) to rise and fall to the predetermined position for grinding.

Images