CN110026833B

CN110026833B - Milling cutter grinding machine

Info

Publication number: CN110026833B
Application number: CN201910471013.XA
Authority: CN
Inventors: 黄少杰
Original assignee: Quanzhou Jincheng Machinery Development Co ltd
Current assignee: Quanzhou Jincheng Machinery Development Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2024-05-03
Anticipated expiration: 2039-05-31
Also published as: CN110026833A

Abstract

The milling cutter grinder comprises a machine base, a first movable table and a second movable table, wherein the machine base is provided with a mounting part for assembling a grinding disc, the first movable table can be arranged on the machine base in a front-back movable manner, the second movable table can be arranged on the machine base in a up-down movable manner, and the mounting part is positioned between the first movable table and the second movable table; the first movable table is provided with a first limiting block for supporting the second movable table, and the supporting surface of the first limiting block is an inclined surface with a lower front part and a higher rear part. According to the invention, through ingenious and reasonable layout of the mounting part, the rear corner face grinding seat, the cutter holder, the cutting edge groove grinding seat and the rear clearance face grinding seat and linkage structural designs such as the first movable table, the first limiting block and the second limiting block, synchronous calibration of the cutter holder, the rear corner face grinding seat and the cutting edge groove grinding seat can be realized in a single-shaft adjustment mode, and the operation is simpler and more efficient. Meanwhile, the universal meter is matched with the ball type linear rail to improve the adjustment precision of single-axis movement and the machining precision of the whole machine.

Description

Milling cutter grinding machine

Technical Field

The invention relates to the field of grinding devices, in particular to a milling cutter grinder.

Background

The ball head cutter is a cutter with one or more cutting edges similar to a ball head, and milling of a workpiece is realized by rotating the ball head cutter when the ball head cutter is used. The existing milling cutter grinding machine generally comprises a plurality of machining seats which are different in function and adjustable, each machining seat is required to be independently adjusted before machining, the use is inconvenient, the operation is complex, and the precision is poor. The ball nose grinder disclosed in chinese patent publication No. CN 203245683U and the nose and round mill grinder disclosed in chinese patent publication No. CN 204893589U all have the above problems. Therefore, a milling cutter grinder which is convenient to operate, high in efficiency, complete in function and high in machining precision needs to be designed.

Disclosure of Invention

The invention provides a milling cutter grinder, which aims to overcome the problems in the prior art.

The technical scheme adopted by the invention is as follows:

The milling cutter grinder comprises a machine base, a first movable table and a second movable table, wherein the machine base is provided with an installation part for vertically assembling a grinding disc, the first movable table can be movably arranged on the machine base back and forth, the second movable table can be movably arranged on the machine base up and down, and the installation part is positioned between the first movable table and the second movable table; the first movable table is provided with a first limiting block for supporting the second movable table, and the supporting surface of the first limiting block is an inclined surface with a lower front part and a higher rear part.

Further, the included angle between the top holding surface of the first limiting block and the horizontal plane is 45 degrees.

Further, a second limiting block which is used for propping up with the first limiting block is fixedly arranged at the lower end of the second movable table, and the propping surfaces of the first limiting block and the second limiting block are parallel to each other.

Further, the milling cutter comprises a cutter aligning seat and a first supporting block, wherein the cutter aligning seat is arranged on the first movable table, and the first supporting block is fixedly arranged right behind the cutter aligning seat and is used for supporting the cutter point of the milling cutter.

Further, the cutter comprises a second jacking block which is arranged on the first jacking block in a left-right movable way and is used for abutting against the cutting edge groove of the milling cutter.

Further, the device further comprises a rear angle face grinding seat and a third movable table, wherein the third movable table can be arranged on the upper end face of the first movable table in a left-right movable mode, the upper end face of the third movable table is an inclined face with a lower front part and a higher rear part, and the rear angle face grinding seat is rotatably arranged on the upper end face of the third movable table and is located beside the installation part.

Furthermore, the mounting hole of the rear angle surface grinding seat is provided with a notch, the two sides of the notch of the rear angle surface grinding seat are respectively provided with a connecting part with a screw hole, and the two connecting parts are fastened by screws.

Still further, the rear-angle face grinding seat comprises a lower part and an upper part, wherein the lower part is rotatably arranged on the upper end face of the third movable table, the upper part is provided with a mounting hole for fixedly mounting the clamping seat, and the upper part is arranged on the upper end face of the lower part in a back-and-forth movable way.

The milling cutter is characterized by further comprising a clamping seat, wherein the clamping seat is provided with a clamping hole for inserting the milling cutter, and is provided with a locking screw communicated with the clamping hole; the rear corner face grinding seat is provided with a mounting hole for fixedly mounting the clamping seat, and the locking screw is in a vertical state when the clamping seat is fixedly arranged in the mounting hole and the mounting hole faces left and right.

Further, the grinding device also comprises a blade groove grinding seat, wherein the blade groove grinding seat is fixedly arranged on the second movable table.

Further, the grinding device also comprises a rear clearance surface grinding seat which can be horizontally and rotatably arranged on the blade groove grinding seat.

Further, the device also comprises a dial indicator, wherein the dial indicator for measuring the front-back movement distance of the first movable table is arranged between the first movable table and the machine base.

Still further, the frame is provided with the locating piece, the rear end of first movable table is equipped with the blind hole, and the percentage table includes casing and measuring stick, the sleeve of casing inserts and locates the blind hole and pass through the screw lock solid, the measuring head of measuring stick is movably inserted and is located the blind hole, and be equipped with between measuring head and the first movable table of measuring stick and make the fender cap top of measuring stick hold in the elastic component of locating piece.

Furthermore, the positioning block can be arranged on the stand in a front-back adjustable way.

The measuring device comprises a measuring rod, a locating block, a dial indicator zero setting mechanism, a first through hole, a first blind hole, a first screw and a second screw, wherein the locating block is provided with the first through hole and the first blind hole which extend in the front-back direction; the positioning block is further provided with a groove body penetrating the first through hole and the first blind hole, a second screw is assembled in the first blind hole, and the first through hole, the first screw, the first blind hole, the second screw and the groove body form the dial indicator zeroing mechanism.

Furthermore, elastic telescopic pipes for sleeving the measuring rod are respectively connected between the shell and the positioning block and between the shell and the first movable table.

Compared with the prior art, the invention has the advantages that:

According to the invention, through ingenious and reasonable layout of the mounting part, the rear corner face grinding seat, the cutter holder, the cutting edge groove grinding seat and the rear clearance face grinding seat and through linkage structural designs such as the first movable table, the first limiting block and the second limiting block, synchronous calibration of the cutter holder, the rear corner face grinding seat and the cutting edge groove grinding seat can be realized in a single-shaft adjustment mode, and the operation is simpler and more efficient. Meanwhile, the universal meter is matched with the ball type linear rail to improve the adjustment precision of single-axis movement and the machining precision of the whole machine.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the second embodiment of the present invention.

Fig. 3 is a left side view of the present invention.

Fig. 4 is a right side view of the present invention.

Fig. 5 is an enlarged schematic view of the portion a in fig. 1.

Fig. 6 is a schematic structural view of fig. 5 with the second roof block removed.

Fig. 7 is a schematic diagram of an assembly structure of a second movable table, a machine base, a blade groove grinding base and a rear clearance surface grinding base according to the present invention.

Fig. 8 is a schematic diagram of an assembly structure of the second movable table, the base and the blade groove grinding base according to the present invention.

Fig. 9 is an assembly schematic diagram of the dial indicator, the positioning block, the first movable table and the frame in the present invention.

FIG. 10 shows another embodiment of the rear face grinder base according to the present invention.

Detailed Description

Specific embodiments of the present invention will be described below with reference to the accompanying drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent to one skilled in the art that the present invention may be practiced without these details.

Referring to fig. 1 to 4, a milling cutter grinder includes a housing 1, a first movable stage 2, a mounting portion 3, a third movable stage 4, a rear corner face grinding seat 5, a counter blade seat 6, a second movable stage 7, a blade groove grinding seat 8, a rear clearance face grinding seat 9, and a holder 100. The holder 100 is provided with a clamping hole 1001 for penetrating the milling cutter a, and the holder 100 is provided with a locking screw 1002 which is communicated with the clamping hole 1001 and is used for locking the holder 100 and the milling cutter a. The tool apron 6, the cutting edge groove grinding seat 8, the rear corner face grinding seat 5 and the rear clearance face grinding seat 9 are all provided with mounting holes 10 for mounting the clamping seat 100, and one side of the mounting holes 10 is provided with a limiting groove for directionally mounting the clamping seat 100. The counter blade holder 6, the rear corner grinding seat 5 and the rear clearance grinding seat 9 are also provided with locking screws for locking and fixing the clamping seat 100 in the mounting hole. The specific structure of the holder 100, and the directional assembly structure and manner of the holder with the mounting hole 10 and the limiting groove belong to a conventional mechanical structure of the existing grinding machine, and a person skilled in the art can understand and implement the present invention with reference to the drawings and the prior art, and detailed descriptions thereof are omitted herein. However, the structure and manner of the directional fixing mounting between the holder 100 and each processing holder are not limited thereto, and any structure and manner of the directional mounting of the holder 100 to the processing holder, which can firmly and easily be assembled and disassembled, may be applied to the milling cutter grinder.

Referring to fig. 1 to 3, in particular, the housing 1 is mainly composed of a riser 11 and a floor 12 fixedly connected to each other in a vertical direction. The rear wall of the riser 11 is fixedly mounted with a motor 31 by screws, and an output shaft 311 of the motor 31 rotatably penetrates the riser 11 through a bearing and extends to the front of the riser 11 to form the mounting portion 3. The grinding disk 32 is vertically fixedly mounted to the mounting portion 3.

Referring to fig. 1 to 3, a first movable stage 2 is provided movably back and forth on a machine base 1 and below a mounting portion 3. Specifically, the first movable stage 2 is mounted to the bottom plate 12 of the machine base 1 by a screw sliding mechanism so as to be movable back and forth. An adjusting knob 21 for adjusting the screw rod sliding mechanism and moving the first movable table 2 is installed on the front wall of the first movable table 2, so that a user can manually adjust the table. Because the screw rod sliding mechanism with the adjusting knob is a common structure in the field of mechanical manufacturing for realizing movable connection between two parts, the specific structure of the screw rod sliding mechanism is not described herein, but the protection scope of the patent is not limited to the screw rod sliding mechanism, and any mechanical structure or adjusting mode capable of realizing similar adjusting rules in the patent is within the protection scope of the patent.

Referring to fig. 2, 3 and 9, in addition, in order to more precisely adjust the first movable stage 2, a dial 22 for measuring the forward and backward moving distance of the first movable stage 2 is fixedly installed at the left side of the rear wall of the first movable stage 2. A positioning block 121 is arranged on the bottom plate 12 of the stand 1, and the dial indicator 22 is arranged between the first movable table 2 and the positioning block 121.

Referring to fig. 2, 3 and 9, more specifically, the positioning block 121 is fixed to the bottom plate 12 of the base 1 by a screw 122 and a bar screw hole, and can be adjusted in a back-and-forth movement. The rear end of the first movable table 2 is provided with a blind hole 24. The dial indicator comprises a housing 220 and a measuring rod 222, wherein a sleeve 221 of the housing 220 is inserted into the blind hole 24 and is locked by a screw 26, so that the housing 220 is fixedly mounted on the first movable table 2. The measuring head of the measuring rod 222 is movably inserted into the blind hole 24, and an elastic member 25 is disposed between the measuring head and the first movable table 2 to enable the measuring rod to move backward and enable the blocking cap of the measuring rod 222 to be always propped against the positioning block 121. Preferably, the elastic member 25 is a compression spring. Because sleeve 221 of casing 220 inserts and locates blind hole 24 to make sleeve 221 and measuring head of measuring stick 222 be in blind hole 24, reduction that can be fine even avoid producing tiny metal chip when grinding falls to measuring head one end of measuring stick 222 and on the sleeve of casing 220, can play fine dustproof effect, guarantee the degree of accuracy and the life of percentage table.

Referring to fig. 2,3 and 9, more specifically, the positioning block 121 is provided with a first through hole 131 and a first blind hole 132 extending in the front-rear direction, and the positioning block 121 is further provided with a groove 133 penetrating the first through hole 131 and the first blind hole 132. The blocking cap of the measuring rod 222 is disposed at the front end of the first through hole 131 in a front-back adjustable manner, and the rear end of the first through hole 131 is equipped with a first screw 134 for supporting the blocking cap in a threaded connection manner, and the first blind hole 132 is equipped with a second screw 135 in a threaded connection manner. The first through hole 131, the first screw 134, the first blind hole 132, the second screw 135 and the groove 133 constitute a dial indicator zeroing mechanism. The specific using method is as follows: the blocking cap of the measuring rod 222 is adjusted back and forth by rotating the first screw 134, so that the reading of the dial indicator is zero; and then the second screw 135 is screwed, and the part of the positioning block 121 located behind the groove body 133 is slightly bent forward to deform due to the action of the second screw 135, and the rear section of the first through hole 131 is slightly bent forward to deform accordingly, so that the first screw 134 is fastened to the first through hole 131.

Referring to fig. 2, 3 and 9, in order to further improve the dustproof performance, an elastic extension tube 27 for sleeving a measuring rod 222 is connected between the housing 220 and the rear end of the first movable table 2, and between the housing 220 and the positioning block 121. Preferably, the elastic bellows 27 is a bellows. In order to fix the elastic bellows 27 and further improve the dust-proof effect, annular grooves (not shown) for connecting the elastic bellows 27 may be provided on the surfaces of the housing 220, the positioning block 121, and the first movable table 2. Of course, the dustproof mode of the dial indicator is not limited to the elastic telescopic tube and the related structure, and any suitable existing dustproof means can be used instead.

According to the invention, the shell of the dial indicator is fixed on the movable first movable table in an anti-conventional manner, and the elastic piece is used for supporting the measuring head of the measuring rod, so that the reading of the dial indicator is gradually increased when the first movable table moves rightwards relative to the front end of the grinding disc, and normal display can be performed. Meanwhile, the two ends of the measuring rod of the dial indicator are shielded through the blind holes, the elastic telescopic pipes and the like, so that fine metal scraps or other dust is reduced or even prevented from falling to the measuring rod of the dial indicator, and the accuracy and the service life of the dial indicator are ensured.

Referring to fig. 1 to 3, the third movable table 4 is provided on the upper end surface of the first movable table 2 so as to be movable left and right by a ball type linear guide, and the upper end surface of the third movable table 4 is a slope with a low front and a high rear. Specifically, the included angle between the inclined surface and the horizontal surface is 10 °, and of course, the inclination angle of the upper end surface of the third movable table 4 is not limited to 10 °, and the design parameters can be adjusted according to the type of the milling cutter to be machined. Because ball formula linear guide is the common structure in the field of the mechanical manufacturing that realizes movable connection between two parts, consequently the concrete structure to ball formula linear guide is not repeated here, but the protection scope of this patent is not limited to ball formula linear guide, and any mechanical structure or the regulation mode that can realize similar regulation rule in this patent all are within the protection scope of this patent. A spring for moving the third movable table 4 to the left is provided between the third movable table 4 and the first movable table 2 in a hidden manner (due to the shielding by other parts, which cannot be shown in the drawing, but a spring is provided between two parts which can move each other, so that one part can automatically move and return to a certain fixed position of the other part, which is a common structure in the existing machinery manufacturing field, and a person skilled in the art can design and implement the locking knob 23 for overcoming the force of the spring and locking the two parts according to the need of the prior art according to the function to be realized by the spring, in combination with the prior art), and the third movable table 4 and the first movable table 2 are provided therebetween.

Referring to fig. 1 to 3, the rear polishing pad 5 is rotatably disposed on the upper end surface of the third movable table 4 and beside the mounting portion 3, i.e., the polishing disc 32, and the mounting hole of the rear polishing pad 5 is oriented laterally. Specifically, the rear face grinding seat 5 is rotatably disposed on the upper end face of the third movable table 4 through a pin 41 in combination with a bearing, and a spring for enabling the rear face grinding seat 5 to rotate clockwise is disposed between the rear wall of the rear face grinding seat 5 and the third movable table 4 (due to shielding by other parts such as the rear face grinding seat, the spring cannot be shown in the drawings, but is disposed between two parts capable of rotating mutually, so that one part can automatically move and return to a certain fixed position of the other part, which belongs to a common structure in the existing machinery manufacturing field, and a person skilled in the art can design and implement according to functions to be achieved by the spring and combining with the prior art as required). In order to control and display the rotation angle, the rear face grinding seat 5 is marked with graduation marks of the rotation angle around the pin 41. In order to limit the rotation angle of the rear angle surface grinding seat 5, the rear angle surface grinding seat 5 is provided with a limiting convex point 51, and a limiting concave part 42 which is mutually matched with the limiting convex point 51 is arranged on the upper end surface of the third movable table 4, so that the rear angle surface grinding seat 5 can rotate approximately 90 degrees. A lever (not shown) may be provided on the left wall or other suitable position of the third movable table 4 for facilitating the movement of the third movable table 4, and likewise, a lever (not shown) may be provided on the left wall or other suitable position of the rear face grinding base 5 for facilitating the rotation.

Referring to fig. 1 to 3, specifically, the mounting hole 10 of the rear face grinding seat 5 is provided with a notch, and the rear face grinding seat 5 is provided with connection portions 53 with screw holes at both sides of the notch, and the two connection portions 53 are connected by a second locking screw 52. Compared with the conventional locking manner, the above structure clamps the holder 100 by locking the second locking screw 52 to deform and shrink the mounting hole 10. In the shrinking process, most of the orientations of the mounting holes 10 are shrunk at the same time, so that the deviation of the axial lead of the clamping holes 1001 relative to the axial lead of the mounting holes 10 can be reduced or even avoided, and the machining precision is improved.

Referring to fig. 1,2 and 10, another embodiment of the relief surface grinding seat 5 is shown in fig. 10: the rear-angle surface grinding seat can be divided into a lower part 501 and an upper part 502, wherein the lower part 501 is rotatably arranged on the upper end surface of the third movable table 4, the upper part 502 is provided with a mounting hole 10, and the upper part 502 is arranged on the upper end surface of the lower part 501 in a manner of tilting back and forth through a linear sliding rail mechanism 503 and is provided with a locking screw 504. In addition, graduations are provided between the lower part 501 and the upper part 502, so that the moving distance of the upper part 502 can be conveniently adjusted and displayed. The linear slide mechanism 503 is a common structure in the field of mechanical manufacturing for realizing the mutual movable adjustment between two components, and the specific structure is not repeated, but the sliding connection manner between the lower portion 501 and the upper portion 502 is not limited thereto, and any other existing mechanical structure or adjustment manner capable of realizing the similar adjustment rule in the present patent may be adopted. The relief grinding seat shown in fig. 10 is assembled in the milling cutter grinder, and can process the relief of other types of milling cutters, such as a round nose cutter, in addition to the ball nose cutter. The specific method comprises the following steps: adjusting the upper portion 502 to zero scale between the upper portion 502 and the lower portion 501 may be used for relief surface machining of the ball nose cutter. Taking the radius of the bar as 5mm and the radius of the rear corner surface as 1mm as an example, when the rear corner surface of the circular nose knife is processed, firstly, the rotary adjusting knob 21 is rotated to enable the reading of the dial indicator 22 to be approximately equal to 4 mm= (5 mm-1 mm); then, the upper part 502 is moved, so that the side wall of the circular nose knife is propped against the front end surface of the grinding disc 32 when the rear angle surface grinding seat 5 faces left and right, and then the upper part 502 is fixed; and finally, fixedly mounting the clamping seat carrying the circular nose knife in a mounting hole of the rear angle face grinding seat 5, and rotating the rear angle face grinding seat 5 to grind the rear angle face.

Referring to fig. 1 to 4, when the holder 100 is fixedly installed in the mounting hole of the rear angle grinding seat 5 and the mounting hole is oriented left and right, the locking screw 1002 is in a vertical state. When the clamping seat 100 is fixedly installed on the milling cutter a through the clamping hole 1001 and the locking screw 1002, the diameter of the clamping hole 1001 is always larger than that of the milling cutter a. Therefore, when the locking screw 1002 locks the clamping hole 1001, the milling cutter a will shift along the length direction of the locking screw 1002 (i.e. the axial lead of the milling cutter a translates a distance along the length direction of the locking screw relative to the axial lead of the clamping hole 1001), so when the clamping seat 100 is fixedly installed in the installation hole of the rear face grinding seat 5, the axial lead of the milling cutter a will also shift with the axial lead of the installation hole of the clamping seat 100. When the holder 100 is fixedly disposed in the mounting hole of the relief surface grinding seat 5, if the locking screw 1002 is not in a vertical state, the milling cutter a will deviate from the axis line of the mounting hole in a non-vertical direction due to the supporting of the locking screw 1002, so that the distance between the milling cutter a and the front end surface of the grinding disc 32 will vary due to the deviation, and thus, the relief surface grinding will generate an error. Because the upper end surface of the third movable table 4 is an inclined surface, and the milling cutter a is required to rotate 180 degrees to grind the other rear corner surface after finishing processing one rear corner surface, the offset of the milling cutter a in the non-vertical direction can lead the grinding of the two rear corner surfaces to be in a deep-shallow condition, and the quality of the milling cutter a is affected. When the holder 100 is fixedly arranged in the mounting hole of the rear-angle grinding seat 5, the locking screw 1002 is in a vertical state, and the milling cutter a is offset in a vertical direction relative to the axis of the mounting hole due to the supporting of the locking screw 1002, but the distance between the milling cutter a and the front end surface of the grinding disc 32 is not changed due to the vertical offset, so that the grinding of the rear-angle surface is not affected.

Referring to fig. 1 to 6, the right wall of the first movable table 2 is integrally provided with a counter blade 6, and the mounting hole of the counter blade 6 is oriented front and rear. When the first movable table 2 is adjusted back and forth, the tool post 6 and the rear angle surface grinding seat 5 can be adjusted back and forth at the same time. The bottom plate 12 of the machine base 1 is fixedly provided with a first supporting block 122 right behind the counter knife seat 6 for supporting the knife tip of the milling cutter a. The first holding block 122 is provided with a second holding block 123 for abutting the blade groove a1 of the milling cutter a so as to be movable left and right. Specifically, a chute 1221 is provided between the first holding block 122 and the riser 11, the second holding block 123 is mounted to the chute 1221 so as to be movable left and right, and the right side of the second holding block 123 is equipped with a lever 1231.

Referring to fig. 1,2,3, 7 and 8, the second movable stage 7 is provided to the housing 1 to be movable up and down and is positioned obliquely above the mounting portion 3 such that the mounting portion 3 is positioned between the first movable stage 2 and the second movable stage 7. Specifically, the second movable table 7 is disposed on the front wall of the riser 11 of the base 1 by a ball type linear slide rail in a vertically movable manner, and a spring 111 for moving the second movable table 7 upward is disposed between the second movable table 7 and the riser 11. The blade groove grinding seat 8 is fixedly arranged at the upper end of the second movable table 7, and the mounting hole of the blade groove grinding seat 8 faces up and down. The rear clearance surface grinding seat 9 is horizontally rotatably arranged on the blade groove grinding seat 8, and the mounting hole of the rear clearance surface grinding seat 9 faces horizontally. Preferably, a bearing 91 for facilitating rotation of the rear clearance surface grinding seat 9 is arranged between the rear clearance surface grinding seat 9 and the blade groove grinding seat 8. The blade groove grinding seat 8 is provided with a limit groove 81, and the rear clearance surface grinding seat 9 is provided with a limit protrusion 92 matched with the limit groove 81, so that the rear clearance surface grinding seat 9 can be arranged on the blade groove grinding seat 8 in a way of rotating anticlockwise by 90 degrees.

Referring to fig. 1,5 and 6, in order to achieve the purpose of adjusting the stroke bottom dead center (i.e., the lowest position where the second movable table 7 can move downward) of the second movable table 7 while adjusting the first movable table 2 back and forth (i.e., adjusting the counter holder 6 and the rear angle surface grinding seat 5), a first limiting block 24 is provided on the right wall of the first movable table 2, and a second limiting block 71 for supporting the first limiting block 24 is provided at the lower end of the second movable table 7. The upper end surface of the first limiting block 24 is a supporting surface and is an inclined surface with a lower front part and a higher rear part; the lower end surface of the second limiting block 71 is a supporting surface and is parallel to the supporting surface of the first limiting block 24. In order to make the amount of change in the front-rear displacement of the first movable table 2 the same as the amount of change in the stroke bottom dead center of the second movable table 7, the angle between the inclined surface of the first stopper 24 and the horizontal surface is 45 °. Preferably, the first stopper 24 is integrally formed with the first movable table 2; the second limiting block 71 is fixedly arranged at the lower end of the second movable table 7 through a screw.

In order to improve the safety, the base of the milling cutter grinder may be provided with a protection plate (not shown) at a proper position. The addition of a shield is a common measure in mechanical devices and is not described in detail here.

Table one: the milling cutter grinder processing reference table (the numerical values in the table I are only used as reference, and the milling cutters with different sizes and specifications can be correspondingly adjusted according to the needs of the person skilled in the art)

Radius of milling cutter (mm)	Cutting edge parameter (mm)	Rear wall air parameters (mm)
			0.5	0.49	Greater than 1.42
0.75	0.74	Greater than 2.13
			1.0	0.98	Greater than 2.80
1.5	1.48	Greater than 4.09
			2.0	1.97	Greater than 5.29
2.5	2.46	Greater than 6.41
			3.0	2.95	Greater than 7.48
4.0	3.94	Greater than 9.48
			5.0	4.92	Greater than 11.25
6.0	5.91	Greater than 12.96

Referring to fig. 1 to 9, the specific operation steps and working principle of the milling cutter a according to the present invention are as follows:

1. Tool setting

(1.1) Measuring the radius of the milling cutter a, referring to the above table one, the adjustment knob 21 is rotated so that the reading of the dial indicator 22 is equal to the corresponding cutting edge parameter (for example, when the radius of the milling cutter a is 1.0mm, the adjustment knob 21 is rotated so that the reading of the dial indicator 22 is 0.98 mm).

(1.2) Placing the jig 100 in the mounting hole of the counter blade holder 6, and bringing one end surface of the jig 100 into close contact with the end surface of the counter blade holder 6; the lock screw 61 is rotated toward the mounting hole until the clamp 100 is locked to the tool holder 6.

(1.3) Inserting the milling cutter a into the clamping hole 1001 of the clamping apparatus 100, if a completely new milling cutter a is manufactured by using a bar, only one end of the milling cutter a needs to be propped against the first propping block 122; in addition to the end of the cutting edge of the milling cutter a being supported by the first supporting block 122, the milling cutter a is properly rotated and adjusted, and the second supporting block 123 is moved to the left so that the second supporting block 123 is inserted into one of the cutting edge grooves a1 of the milling cutter a.

(1.4) Locking the locking screw 1002 from the through hole 62 of the tool holder 6 into the screw hole 1003 of the jig 100 with a screwdriver until the milling cutter a is locked with the jig 100; the locking screw 61 is then loosened and the clamp 100 is removed from the counter holder 6.

2. Grinding blade groove

(2.1) Starting the motor 31 to rotate the grinding disk 32 at a high speed.

(2.2) Placing the jig 100 into the mounting hole of the blade groove grinding seat 8 with the tool bit facing downward, making the end surface of the jig 100 closely contact with the upper end surface of the blade groove grinding seat 8, and screwing a locking screw (not shown) into the screw hole 82 until the jig 100 is locked to the blade groove grinding seat 8.

(2.3) Slowly pressing down the second movable table 7 by external force, polishing the milling cutter a by the joint of the front end surface and the circular arc surface of the grinding disc 32 after the milling cutter a descends along with the second movable table 7 until the second limiting block 71 contacts with the first limiting block 24 (and stays for a period of time), and removing the external force; the second movable stage 7 is then raised to the initial position by the spring 111. The grinding disk 32 grinds a blade groove a1 on the milling cutter a; the locking screw at the screw hole 82 is loosened again, and the jig 100 is taken out. It should be noted that: in the mechanical design of the machine, it is necessary to provide the center axis of the mounting hole of the blade groove polishing seat 5 and the front end surface of the polishing disk 32 with the same face milling cutter a. The blade groove a1 includes a flat surface a11 and a curved surface a12, the flat surface a11 is formed by polishing the front end surface of the polishing disk 32, and the curved surface a12 is formed by polishing the circular arc surface of the polishing disk 32. In the mechanical design of the machine, one end of the intersection line between the flat surface a11 and the curved surface a12 is located at the position of the axis line of the milling cutter a, among the blade grooves formed when the second stopper 71 contacts the first stopper 24.

(2.4) Repeating the steps (2.2) and (2.3) after horizontally rotating the jig 100 by 180 deg., thereby grinding another blade groove a1 on the milling cutter a.

3. Grinding relief surface

(3.1) Placing the jig 100 into the mounting hole of the rear angle grinding seat 5 with the tool bit facing right, bringing the end face of the jig 100 into close contact with the left end face of the rear angle grinding seat 5, and then tightening the locking screw 52 until the jig 100 is locked to the rear angle grinding seat 5.

(3.2) Pushing the third movable table 4 to move to the right by external force to complete the feeding action; the third movable stage 4 is locked to the first movable stage 2 by tightening the locking screw 23.

(3.3) Rotating the rear angle surface grinding seat 5 counterclockwise by an external force by an angle of approximately 90 °, and grinding the rear angle surface a 2by the front end surface of the grinding disc 32 after the rotary cutting of one of the planes a 11; the external force is removed, and the rear angle surface grinding seat 5 is rotated clockwise to the initial position by means of a spring (not shown in the figure) between the rear angle surface grinding seat 5 and the third movable table 4.

(3.4) Releasing the locking screw 23, and moving the third movable table 4 to the left to the initial position by means of a spring (not shown) between the third movable table 4 and the first movable table 2, thereby completing the retracting operation; the locking screw 52 is then loosened and the clamp 100 is removed.

(3.5) The jig 100 is turned 180 ° and then reinserted into the rear face grinding holder 5, and the locking screw 52 is tightened to fix the two.

(3.6) Repeating the steps (3.2) to (3.4) to grind the relief surface a2 after the rotary cutting of the other plane a11 of the milling cutter a.

4. Grinding the hollow surface of the rear wall

(4.1) Rotating the adjustment knob 21 and referring to the above table one, so that the reading of the dial indicator 22 satisfies the corresponding back wall space parameter (for example, when the radius of the milling cutter a is 1.0mm, rotating the adjustment knob 21, so that the reading of the dial indicator 22 is a certain value which is greater than 2.80mm and is close to 2.80mm, such as 3.00mm. Because the smaller the reading of the dial indicator 22 is, the lower the stroke bottom dead center of the second movable table 7 is, the deeper the depth of the back wall space formed by grinding is, the larger the area is, the smaller the area reserved on the back corner is, and when the reading of the dial indicator 22 is less than 2.80mm, the back wall space parameter is completely wiped off, so that the reading of the dial indicator 22 satisfies the corresponding back wall space parameter when the milling cutter a is required to be ensured.

(4.2) The rear clearance surface grinding seat 9 is rotated counterclockwise to the right, the clamp 100 is placed into the mounting hole of the rear clearance surface grinding seat 9 in a manner that the tool bit faces left, the end face of the clamp 100 is tightly attached to the right end face of the rear corner surface grinding seat 5, and then a locking screw (not shown in the figure) is screwed into the screw hole 93 until the clamp 100 is locked to the rear clearance surface grinding seat 9.

(4.3) Pressing the second movable stage 7 by an external force to bring the second stopper 71 into contact with the first stopper 24 and to keep the second movable stage 7 stationary.

(4.4) Rotating the rear clearance surface grinding seat 9 clockwise by external force, and grinding a rear wall clearance surface a3 behind the rotary cutting of one of the rear angle surfaces a2 by utilizing the arc surface of the grinding disc 32; and then the rear clearance surface grinding seat 9 is rotated to the rightmost side anticlockwise. The rotation angle of the rear clearance surface grinding seat 9 is approximately 90 ° due to the restriction action of the restriction groove 81 and the restriction protrusion 92. Furthermore, it should be noted that: when the rear clearance surface polishing pad 9 is required to be rotated to the right side in the mechanical design of the machine, the center axis of the rear clearance surface polishing pad 9 is disposed approximately opposite to the center of the circular arc surface of the polishing disk 32.

(4.5) Removing the external force applied to the second movable stage 7, and raising the second movable stage 7 to the initial position.

(4.6) Releasing the locking screw of the screw hole 93, and taking out the jig 100.

(4.7) The clamp 100 is turned 180 degrees and then is reloaded into the rear wall blank grinding seat 9, and the screw holes 93 are tightened to lock the clamp 100.

(4.8) Repeating the steps (4.3) to (4.6), and polishing a rear wall hollow surface a3 by using the circular arc surface of the polishing disc 32 after the rotary cutting of the other rear angle surface a 2.

The external force mentioned in each step can be generated manually by manpower or automatically by a hydraulic or electric driving device. If the automatic generation is performed by the driving device, the driving device is added at the corresponding position of the machine according to the operation requirement, and the device is automated by the driving device, which belongs to the conventional means in the mechanical field and is not described herein.

In summary, the installation part (i.e. the grinding disc), the rear corner face grinding seat, the counter knife seat, the knife edge groove grinding seat and the rear clearance face grinding seat are skillfully and reasonably distributed, and the counter knife seat, the rear corner face grinding seat and the knife edge groove grinding seat can be synchronously calibrated in a single-shaft adjusting mode through the linkage structural design of the first movable table, the first limiting block, the second limiting block and the like, so that the operation is simpler and more efficient. Meanwhile, the universal meter is matched with the ball type linear rail to improve the adjustment precision of single-axis movement and the machining precision of the whole machine.

In the description of the present invention, it should be understood that the terms "vertical," "front," "rear," "left," "right," "clockwise," "high," "low," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly attached or connected via an intermediate introduction, as well as communicating between two components or interactions between two components. The meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.

Claims

1. The utility model provides a milling cutter grinds machine, includes frame, first movable table and second movable table, the frame is equipped with the installation department that is used for vertical assembly abrasive disc, its characterized in that: the first movable table can be arranged on the machine base in a back-and-forth movable way, the second movable table can be arranged on the machine base in a up-and-down movable way, and the installation part is positioned between the first movable table and the second movable table; the first movable table is provided with a first limiting block for supporting the second movable table, and the supporting surface of the first limiting block is an inclined surface with a lower front part and a higher rear part; the cutter seat is arranged on the first movable table, and the first jacking block is fixedly arranged right behind the cutter seat and is used for jacking the cutter point of the milling cutter; the rear angle surface grinding seat is rotatably arranged on the upper end surface of the third movable table and is positioned beside the mounting part; the device also comprises a blade groove grinding seat, wherein the blade groove grinding seat is fixedly arranged on the second movable table; the rear clearance surface grinding seat can be horizontally and rotatably arranged on the blade groove grinding seat.

2. The milling cutter grinder of claim 1, wherein: the included angle between the top holding surface of the first limiting block and the horizontal plane is 45 degrees.

3. A milling cutter grinder according to claim 1 or 2, characterized in that: the lower end of the second movable table is fixedly provided with a second limiting block which is used for propping against the first limiting block, and the propping surfaces of the first limiting block and the second limiting block are parallel to each other.

4. The milling cutter grinder of claim 1, wherein: the cutter is characterized by further comprising a second jacking block which is arranged on the first jacking block in a left-right movable manner and is used for abutting against a cutting edge groove of the milling cutter.

5. The milling cutter grinder of claim 1, wherein: the milling cutter is characterized by further comprising a clamping seat, wherein the clamping seat is provided with a clamping hole for inserting the milling cutter and is provided with a locking screw; the rear corner face grinding seat is provided with a mounting hole for fixedly mounting the clamping seat, and the locking screw is in a vertical state when the clamping seat is fixedly arranged in the mounting hole and the mounting hole faces left and right.

6. The milling cutter grinder of claim 1, wherein: the movable table is characterized by further comprising a dial indicator, wherein the dial indicator for measuring the front-back movement distance of the first movable table is arranged between the first movable table and the machine base.