CN-122007999-A - Multifunctional knife grinder and grinding method

CN122007999ACN 122007999 ACN122007999 ACN 122007999ACN-122007999-A

Abstract

The invention discloses a multifunctional knife grinder and a grinding method, wherein the multifunctional knife grinder comprises a base, a lifting device, a sine fixing device, a double sine fixing device, a bidirectional grooving device, a unidirectional grooving device and a grinding wheel device, the grinding wheel device is arranged in the middle of the base, the lifting device is arranged on one side of the base, a first moving part is arranged on the other side of the base opposite to the lifting device, the bidirectional grooving device and the unidirectional grooving device are arranged on the first moving part, or one bidirectional grooving device or one unidirectional grooving device is arranged on the first moving part, a second moving part is arranged on the lifting device in parallel with the first moving part, and the sine fixing device and the double sine fixing device are arranged on the second moving part, or one sine fixing device or the double sine fixing device is arranged on the second moving part.

Inventors

JIA XIAOQIN
MA YANFENG
CHEN HAILONG
ZHOU JUNHUA
LIU MINGHAN
ZHOU WEIJUAN
LI XIANGHUI
YU WENXI
HU WENRUI

Assignees

江苏省惠山中等专业学校

Dates

Publication Date: 20260512
Application Date: 20260205
Priority Date: 20251128

Claims (20)

1. The multifunctional knife grinder is characterized by comprising a base, a lifting device, a sine fixing device, a double sine fixing device, a bidirectional slotting device, a unidirectional slotting device and a grinding wheel device; The grinding wheel device is arranged in the middle of the base, a lifting device is arranged on one side of the base, a first moving part is arranged on the other side of the base opposite to the lifting device, and a bidirectional grooving device and a unidirectional grooving device are arranged on the first moving part; Or alternatively, a bidirectional grooving device or a unidirectional grooving device is arranged on the first moving part; The lifting device is provided with a second moving part which is parallel to the first moving part; The second moving part is provided with a sine fixing device and a double sine fixing device; Or alternatively, a sine fixing device or a double sine fixing device is arranged on the second moving part.
2. The multifunctional knife grinder according to claim 1, wherein the sinusoidal fixing device comprises a first mounting seat, a first cutter fixing component, a first rotating component and a first sinusoidal adjusting component, wherein the bottom of the first mounting seat is connected with the second moving part, the first sinusoidal adjusting component is arranged at the top of the first mounting seat, the first rotating component is arranged at the top of the first sinusoidal adjusting component, and the first cutter fixing component is detachably fixed in the first rotating component; The first rotating assembly adjusts the polishing angle of the rear cutter face of the cutter, and the first sinusoidal adjusting assembly adjusts the polishing angle of the cutter angle.
3. The multifunctional knife grinder of claim 2, wherein the first sinusoidal regulation component comprises a first mounting bracket, a first rotating shaft, a first connecting block, a first contact block, a first mounting platform and a first gauge block, wherein the bottom of the first mounting bracket is fixedly connected with a first mounting seat, two ends of the first rotating shaft are placed in the first mounting bracket, one end of the first connecting block is fixedly connected with the first rotating shaft, the other end of the first connecting block is fixedly connected with the first contact block, the first mounting platform is arranged in the middle of the first rotating shaft, the first rotation component is arranged on the first mounting platform, the first gauge block is provided with a plurality of first gauge blocks, and the single gauge block or a plurality of first gauge blocks are placed at the bottom of the first contact block in a combined mode to regulate the angle of the first mounting platform.
4. The multifunctional knife grinder of claim 3, wherein the first mounting bracket is provided with two ends for fixing the first rotating shaft respectively, a first mounting hole is formed in the center of the first mounting bracket, the end part of the first rotating shaft is placed in the first mounting hole, and the first mounting bracket is divided into an upper part and a lower part and is tightly held to fix the first rotating shaft through bolt connection.
5. The multifunctional knife grinder of claim 4, wherein a first spring is disposed between the first connecting block and the first mounting seat, the first screw passes through the first connecting block and the first mounting seat, the first spring is disposed between the first screw and the top of the first connecting block, and the first spring presses the first contact block toward the first mounting seat.
6. The multifunctional knife grinder of claim 5, wherein the first rotating assembly comprises a first rotating block and a first limiting groove, wherein the bottom of the first rotating block is connected with the first mounting platform and can rotate on the surface of the first mounting platform, and the first limiting groove is used for fixing the first rotating block with the first mounting platform through bolts; At least two first limit grooves are formed; The first limit groove is an arc-shaped groove; The first rotary block is provided with a second mounting hole in the middle, the first cutter fixing assembly is inserted into the second mounting hole, the section of the second mounting hole is consistent with that of the first cutter fixing assembly, and the bolt extends into the second mounting Kong Dizhu from the outside of the first rotary block.
7. The tool sharpener of claim 6, wherein the first tool fixing assembly comprises a tool pressing block, a first fixing groove, a first limiting inclined block and a first fixing part, wherein the center of the tool pressing block is provided with a first fixing groove which is communicated, the tool An Chajin is arranged in the first fixing groove, the front end of the tool extends out of the tool pressing block, the first limiting inclined block is arranged in the first fixing groove and is contacted with the tool, and the first fixing part extends from the outer side of the tool pressing block to the position of the first fixing groove, where the tool is limited by the tool in a collision manner; The cutter pressing block comprises a first positioning surface and a second positioning surface which are symmetrically arranged; the first positioning surface or the second positioning surface is used as a reference surface of the first cutter fixing assembly; the first positioning surface and the second positioning surface are V-shaped surfaces.
8. The multifunctional knife grinder of claim 7, wherein the cross section of the first fixed slot is a right trapezoid formed by surrounding a first reference surface, a second reference surface, a first inclined surface and a first top surface, the first reference surface is opposite to the first inclined surface, the second reference surface is opposite to the first top surface, and the first reference surface and the second reference surface are vertically arranged; The first limiting inclined block is contacted with the first inclined surface to prop against the cutter to press the first reference surface.
9. The tool sharpener of claim 8, wherein the first fixing portion includes a first threaded hole, a first bolt, a second threaded hole and a second bolt, the first threaded hole being correspondingly disposed above the second reference surface, the first bolt being connected to the first threaded hole, the first bolt passing through the first threaded hole to abut the tool from the top surface and press the tool against the second reference surface; the second threaded hole is correspondingly arranged above the first limiting inclined block, the second bolt is connected with the second threaded hole, the second bolt passes through the second threaded hole to prop against the first limiting inclined block from the top surface and press the first limiting inclined block to the second reference surface, and the first limiting inclined block extrudes the cutter to move towards the first reference surface; The first threaded hole and the first bolt are provided with at least two groups, and the second threaded hole and the second bolt are provided with at least two groups.
10. The multifunctional knife grinder according to claim 1, wherein the double-sine fixing device comprises a second mounting seat, a cutter sine mounting assembly, a second rotating assembly and a second sine adjusting assembly, wherein the bottom of the second mounting seat is connected with a second moving part, the top of the second mounting seat is provided with the second sine adjusting assembly, the top of the second sine adjusting assembly is provided with the second rotating assembly, and the cutter sine mounting assembly is detachably fixed on the second rotating assembly; the second sinusoidal adjusting component adjusts the polishing angle of the cutter type angle, and the cutter sinusoidal installation component controls the polishing angles of two auxiliary rear cutter surfaces of the cutter.
11. The multifunctional knife grinder of claim 10, wherein the second sinusoidal regulation component comprises a second mounting bracket, a second rotating shaft, a second connecting block, a second contact block, a second mounting platform and a second gauge block, wherein the bottom of the second mounting bracket is fixedly connected with a second mounting seat, two ends of the second rotating shaft are placed in the second mounting bracket, one end of the second connecting block is fixedly connected with the second rotating shaft, the other end of the second connecting block is fixedly connected with the second contact block, the second mounting platform is arranged in the middle of the second rotating shaft, the second rotation component is arranged on the second mounting platform, the second gauge block is provided with a plurality of second gauge blocks, and the single or a plurality of second gauge blocks are placed at the bottom of the second contact block in a combined mode to regulate the angle of the second mounting platform.
12. The multifunctional knife grinder according to claim 11, wherein the second mounting bracket is provided with two ends for fixing the second rotating shaft respectively, a third mounting hole is formed in the center of the second mounting bracket, the end part of the second rotating shaft is placed in the third mounting hole, and the second mounting bracket is divided into an upper part and a lower part and is tightly held and fixed with the second rotating shaft through bolt connection; The spring is arranged between the second connecting block and the second mounting seat, the screw rod penetrates through the second connecting block and the second mounting seat, the spring is arranged between the screw rod and the top of the second connecting block, and the spring presses the second contact block to the direction of the second mounting seat.
13. The multifunctional knife grinder of claim 12, wherein the second rotating assembly comprises a second rotating block and a second limiting groove, wherein the bottom of the second rotating block is connected with the second mounting platform and can rotate on the surface of the second mounting platform, and the second limiting groove is used for fixing the second rotating block with the second mounting platform through bolts; At least two second limit grooves are formed; The second limit groove is an arc-shaped groove.
14. The multifunctional knife grinder of claim 13, wherein the sinusoidal tool mounting assembly comprises a third mounting bracket, a third rotating shaft, a sinusoidal driving block, a third gauge block and a second tool fixing part, a fourth mounting hole is formed in the center of the third mounting bracket, the third rotating shaft is arranged in the fourth mounting hole, the second tool fixing part is arranged in the middle of the third rotating shaft, one end of the sinusoidal driving block is fixedly connected with the end of the third rotating shaft, a third limit groove is formed in the other end of the sinusoidal driving block, a plurality of third gauge blocks are arranged at the bottom of one end, close to the third limit groove, of the sinusoidal driving block, the third limit groove is an arc-shaped groove, the third limit groove is fixed with the third mounting bracket through bolts, and the third limit groove limits the rotation angle of the third rotating shaft.
15. The multifunctional knife grinder of claim 14, wherein the second knife fixing portion comprises a second fixing groove, a second limiting inclined block and a fixing portion, the center of the third rotating shaft is provided with a through second fixing groove, the knife An Chajin is arranged in the second fixing groove, the front end of the knife extends out of the third rotating shaft, the second limiting inclined block is arranged in the second fixing groove to be in contact with the knife, and the fixing portion extends from the outer side of the knife pressing block to the position where the knife is abutted against the knife in the second fixing groove; the section of the second fixing groove is a right trapezoid formed by encircling a third reference surface, a fourth reference surface, a second inclined surface and a second top surface, the third reference surface is opposite to the second inclined surface, the fourth reference surface is opposite to the second top surface, and the third reference surface and the fourth reference surface are vertically arranged.
16. The multifunctional knife grinder according to claim 15, wherein the fixing portion comprises a third threaded hole and a third bolt, the third threaded hole is correspondingly arranged above the second limiting inclined block, the third bolt is connected with the third threaded hole, the third bolt passes through the third threaded hole to prop against the second limiting inclined block from the second top surface and press the second limiting inclined block to the fourth reference surface, and the second limiting inclined block presses the cutter to move towards the third reference surface; The third threaded hole and the third bolt are provided with at least two groups.
17. The multifunctional knife sharpener of claim 1, wherein the bi-directional slotting device comprises a third mounting base, a first knife holder, a first moving assembly, a first limiting assembly and a second limiting assembly, wherein the third mounting base is mounted on the first moving portion at the bottom, the first limiting assembly is mounted on the base and limits the moving position of the third mounting base on the first moving portion, the first moving assembly is vertically arranged on the third mounting base, the first knife holder is arranged at the bottom of the first moving assembly, the second limiting assembly is mounted on the first moving assembly, and the second limiting assembly limits the rotating angle of the first knife holder.
18. The multifunctional knife grinder of claim 17, wherein the first moving assembly comprises a first wire rail, a first sliding block, a first manual rotating wheel, a first screw rod, a nut seat and a sliding plate, wherein the first wire rail is arranged on the third mounting seat, the first sliding block is sleeved on the first wire rail, the first screw rod is arranged in parallel with the first wire rail, the top of the first screw rod is connected with the first manual rotating wheel, the nut seat is sleeved on the first screw rod, the sliding plate is connected with the nut seat and the first sliding block, and the first manual rotating wheel drives the sliding plate to reciprocate up and down on the first wire rail.
19. The multifunctional knife grinder of claim 18, wherein the first knife holder is mounted in the middle of the slide plate; the first cutter fixing seat comprises a third rotating block and a first cutter rest, wherein one side of the third rotating block is fixedly connected with the sliding plate, the first cutter rest is arranged on the other side of the third rotating block, and the third rotating block drives the first cutter rest to rotate; The first knife rest is axially provided with a first mounting groove, a first limiting block is arranged at the bottom of the first mounting groove, and a processing groove is formed above the first limiting block.
20. The multifunction knife grinder of claim 19, wherein the second limit assembly is mounted on the slide plate and defines a third rotation block rotation and defines a rotation angle of the first knife block; the second limiting assembly comprises a second limiting block, a third limiting block, a fourth limiting block and a fifth limiting block; the second limiting block and the third limiting block are symmetrically arranged at two sides of the third rotating block, and the second limiting block and the third limiting block relatively move to clamp the third rotating block; The fourth limiting block and the fifth limiting block are symmetrically arranged on the sliding plate and abut against the first tool rest to limit the rotation position of the first tool rest.

Description

Multifunctional knife grinder and grinding method Technical Field The invention relates to the technical field of machining, in particular to a multifunctional knife grinder and a grinding method. Background In modern machining processes, various machining tools are indispensable. Such as a router bit, worm bit, screw bit, etc. The current situation of the cutter used for the grooving processing is that 1, the cutter type is mainly a mechanically clamped hard alloy cutter and a high-speed steel sharpening cutter at present, 2, the requirement on the cutter is that a plurality of cutters participating in the cutting processing are under the same installation and positioning standard, the cutter angles are consistent, and the cutter point is aligned to a line, so that the cutting processing of a plurality of cutter cutting edges on a straight line can be ensured. The existing grooving machine tool has the following defects: 1. The hard alloy machine clamp cutter mainly comprises a 90-degree groove which is machined by planing, wherein the cutting process of the cutter is generally a negative rake angle, and the cutting force is increased, so that vibration and cutter abrasion are increased, and the cutting chip is difficult to discharge, the cutting resistance is increased, the cutting temperature is high, and the workpiece is easy to deform; 2. the high-speed steel sharpening tool is mainly manually sharpened at present, the sharpening angle of the tool is difficult to ensure high consistency (consistent angle and consistent distance between the tool nose and the assembly positioning surface) under the influence of the level of manual technology, and particularly, the sharpening is more difficult and has large loss when the sharpening is not at an angle of 90 degrees. Fig. 1 is a schematic view of clamping a tool by a router in the prior art, wherein the inner side of the clamp and the bottom of the tool are used as reference surfaces. The cutter polishing is performed by manually polishing a white steel cutter, and the gaps of each polishing section inserted into the module are compared, as shown in fig. 2, and the cutter tip is ensured to be in the middle position by polishing after contacting with the template. However, the defect of the cutter is that the deformation of the cutter body is ignored, the cutter body is taken as an absolute straight basis, the actual situation is that the bending deformation of the cutter body of the white steel cutter is common, the condition shown in figure 3 can occur after the cutter body is taken as a reference for clamping, the condition of A or B in the figure can occur when the cutter point heights are the same or different, and two grooves or even a plurality of grooves are dug. In order to solve the above problems, a method of polishing the thickness of the cutter body or padding copper sheets between the cutter and the clamp is generally adopted to counteract the bending of the cutter body, so that the efficiency is low and trial and error is required. Meanwhile, when the machining amount is large and the tool is required to be replaced frequently, the tool is required to be installed, tested and adjusted each time, and the method is time-consuming, labor-consuming and low in precision. In addition, the tool of the grooving machine has the advantages of high manual sharpening difficulty, poor precision and low efficiency. The defect is caused by that the cutter polishing is performed by manually polishing a white steel cutter, and the cutting edges are contacted with the template and polished again after each polishing section of the notch inserted into the module, so that the shape of the cutter point is consistent with that of the module as much as possible, and the angle of the cutter is inaccurate. Especially, the cutter needs to have a rake angle and a cutting edge angle, the cutting edge angle is required to be consistent in some working occasions, the cutting edges on two sides are required to be kept at different angles in some use occasions, and the accuracy is difficult to grasp in the manual grinding process. Therefore, the tool of the grooving machine shown in fig. 4 has the defects of large manual sharpening difficulty, poor precision and low efficiency. In particular, the knife tip position requires two symmetrical grooves on the front knife surface in order to reduce the contact resistance with the plate material and improve the processing efficiency. The front tool surface position slotting is realized without existing equipment, the manual slotting loss is large, and the slot asymmetry or slot penetration can be caused by no attention. On the other hand, as shown in fig. 5, the two grooving machine tools have higher difficulty in grooving based on the previous reason, but the cutting edge is required to be reduced in contact with the plate material to improve the processing efficiency, so that the arc groove is obliquely formed at the tool nose to