CN118143858A

CN118143858A - R angle repairing device and method for grinding wheel of grinding machine

Info

Publication number: CN118143858A
Application number: CN202410473314.7A
Authority: CN
Inventors: 叶欢春; 劳小珍; 朱永强; 罗华中; 朱涛
Original assignee: Dongfeng Auto Parts Group Co ltd Blade Measuring Tool Branch
Current assignee: Dongfeng Auto Parts Group Co ltd Blade Measuring Tool Branch
Priority date: 2024-04-19
Filing date: 2024-04-19
Publication date: 2024-06-07

Abstract

The invention relates to the technical field of grinding machines and provides an R angle repairing device and method for a grinding wheel of a grinding machine, wherein the R angle repairing device comprises a first adjusting component, a rotating shaft, a second adjusting component and a diamond pen, the first adjusting component is arranged on the grinding machine and comprises a first movable end, the first movable end can move along a primary adjusting line, and the primary adjusting line is a straight line parallel to the plane of the grinding wheel; the rotating shaft is rotatably arranged on the first movable end, the axis of the rotating shaft is mutually perpendicular to the primary adjusting line and is positioned on the plane where the grinding wheel is positioned, the first movable end is used for adjusting the middle interval, and the middle interval is the shortest interval from the axis extension line of the rotating shaft to the axis of the grinding wheel. According to the grinding wheel R angle repairing device and method for the grinding machine, the first adjusting component, the rotating shaft and the second adjusting component are arranged to adjust the circle center position and the circle center radius of the arc corresponding to the R angle, so that the accuracy of R repairing operation of the grinding wheel is guaranteed, and meanwhile, the operation efficiency is improved.

Description

R angle repairing device and method for grinding wheel of grinding machine

Technical Field

The invention relates to the technical field of grinding machines, in particular to an R angle repairing device and method for a grinding wheel of a grinding machine.

Background

The grinding wheel is a circular bonded grinding tool with a through hole in the center, which is made of abrasive materials, binding agents and the like, and is the most main type of grinding tool in grinding processing. The R angle of the grinding wheel refers to the included angle of two cutting lines on the working surface of the grinding wheel. When the grinding wheel grinds a workpiece, the angle between the cutting line and the surface of the workpiece is referred to as an R angle. The magnitude of the R angle affects the grinding effect and quality between the grinding wheel and the workpiece. Typically, the R angle of the grinding wheel should be determined based on the specific grinding requirements and workpiece materials. The smaller R angle can improve the cutting efficiency and grinding precision of the grinding wheel, and is suitable for workpieces with high requirements on surface precision; and a larger R angle is suitable for the condition of high grinding efficiency. During the use of the grinding wheel, the working surface of the grinding wheel is gradually worn due to the continuous contact and grinding with the workpiece. The R angle changes caused by abrasion, and the grinding effect and the processing quality of the grinding wheel are affected.

The grinding wheel may be affected by external impact or temperature change during operation, resulting in shape change. If the shape of the grinding wheel changes, the R angle also changes correspondingly, and the grinding precision and efficiency of the grinding wheel are affected. In addition, for some workpieces with higher requirements on grinding precision, the R angle of the grinding wheel needs to be kept in a certain range to ensure the machining quality, and the R angle of the grinding wheel can be regularly repaired to ensure that the grinding wheel can meet the precision requirements in the grinding process. Some parts need to repair R angles or R faces, the grinding wheel needs to be trimmed firstly, the end face of the grinding wheel needs to be machined to the required R angle, the product can be machined, the numerical control grinding machine can be realized through a machine tool program, and the common grinding machine usually uses an operator to hold a diamond pen to repair the grinding wheel. The accuracy of the R angle size of the grinding wheel directly influences the R angle of a product, the R angle trimming of the grinding wheel is a work with high requirements on the skill of operators, only a few of old masters with abundant experience can be qualified, and the time spent is long. Meanwhile, the grinding wheel is repaired by holding the diamond pen with hands, so that the safety risk is also presented.

Disclosure of Invention

In view of this, the invention provides a grinding wheel R angle repairing device and method for a grinding machine, which are capable of adjusting the circle center position and the circle center radius of an arc corresponding to an R angle by arranging a first adjusting component, a rotating shaft and a second adjusting component, thereby ensuring the accuracy of R repairing operation of the grinding wheel and improving the operation efficiency.

The technical scheme of the invention is realized as follows:

On one hand, the invention provides an R angle trimming device of a grinding wheel of a grinding machine, which comprises a first adjusting component, a rotating shaft, a second adjusting component and a diamond pen, wherein,

The first adjusting assembly is arranged on the grinding machine and comprises a first movable end, the first movable end can move along a primary adjusting line, and the primary adjusting line is a straight line parallel to the plane of the grinding wheel;

the rotating shaft is rotatably arranged on the first movable end, the axis of the rotating shaft is perpendicular to the primary adjusting line and is positioned on the plane of the grinding wheel, the first movable end is used for adjusting the middle interval, and the middle interval is the shortest interval from the extension line of the axis of the rotating shaft to the axis of the grinding wheel;

The second adjusting component is arranged on the rotating shaft and comprises a second movable end, the second movable end can move along a secondary adjusting line, and the secondary adjusting line is a straight line perpendicular to the axis of the rotating shaft;

The diamond pen is arranged on the second movable end, the diamond pen comprises an angle trimming end far away from the second movable end, the angle trimming end is used for trimming the grinding wheel, the axis of the diamond pen is parallel to the secondary adjusting line, an extension line of the axis of the diamond pen is intersected with the axis of the grinding wheel, the second movable end is used for adjusting the angle trimming distance, and the angle trimming distance is the shortest distance from the axis extension line of the rotating shaft to the angle trimming end of the diamond pen.

On the basis of the technical scheme, the rotary shaft is preferably further provided with a connecting component, the connecting component is arranged on the first movable end, and the rotary shaft is movably connected with the connecting component.

Further preferred, the connection assembly comprises a connection plate and a mounting seat, wherein,

The connecting plate is fixed on the first movable end, and a character opening is formed in the connecting plate;

The mounting seat is fixed on the connecting plate through the bolt and the straight port, the rotating shaft penetrates through the mounting seat and can rotate relative to the mounting seat, and the mounting seat can adjust the relative position with the connecting plate through the straight port so as to change the position of the intersection point of the extending line of the rotating shaft and the edge of the grinding wheel.

On the basis of the technical proposal, preferably, the first adjusting component comprises a first fixing seat, a first connecting piece and a first screw rod, wherein,

The first fixing seat is fixed on the grinding machine;

The first connecting piece is in sliding connection with the first fixing seat, and the first fixing seat extends to the inside of the first connecting piece;

the first screw rod is movably arranged on the first connecting piece, the first screw rod can rotate around the axis relative to the first connecting piece, and the first screw rod penetrates through the first fixing seat and is in threaded connection with the first fixing seat.

On the basis of the technical proposal, preferably, the second adjusting component comprises a second fixing seat, a second connecting piece and a second screw rod, wherein,

The second fixing seat is fixed at the end part of the rotating shaft;

the second connecting piece is in sliding connection with the second fixing seat, and the second fixing seat extends to the inside of the first connecting piece;

The second screw rod is movably arranged on the second connecting piece, the second screw rod can rotate around the axis relative to the second connecting piece, and the second screw rod penetrates through the second fixing seat and is in threaded connection with the second fixing seat.

On the basis of the technical scheme, the diamond pen grinding machine preferably further comprises a fine adjustment assembly, wherein the fine adjustment assembly is arranged on the second movable end and used for connecting the second movable end with the diamond pen, and the fine adjustment assembly is used for adjusting the relative positions of the diamond pen and the second movable end so that an axis extension line of the diamond pen intersects with the axis of the grinding wheel.

Further preferably, the trimming assembly comprises a cross arm and a pen holder, wherein,

The cross arm is fixed on the second movable end;

The pen holder is fixed relatively to the cross arm, the diamond pen is fixed on the pen holder, the diamond pen faces the axis of the grinding wheel, a waist round hole is formed in the pen holder, and the cross arm is connected with the bolt through the waist round hole, so that the pen holder can adjust the relative position of the pen holder and the cross arm through the waist round hole.

Further preferably, the first connecting piece is provided with a dovetail groove, and one side of the first fixing seat extends into the dovetail groove and slides in a matched manner with the first connecting piece through the dovetail groove.

Further preferably, a dovetail groove is formed in the second connecting piece, and one side of the second fixing seat extends into the dovetail groove and slides in a matched manner with the second connecting piece through the dovetail groove.

On the other hand, the invention provides a grinding machine grinding wheel R angle trimming method, which is realized based on the grinding machine grinding wheel R angle trimming device, and comprises the following steps:

S1, setting an initial position of a corner trimming end;

S2, setting R angle parameters, wherein the R angle parameters comprise the distance from the center of a circular arc edge to the axis of the grinding wheel and the radius of the circular arc edge;

S3, adjusting the position of the first movable end on a primary adjusting line to enable the middle distance to be equal to the distance from the center of the circular arc edge to the axis of the grinding wheel;

s4, obtaining feeding length according to the initial position of the corner trimming end and the R angle parameter, wherein the feeding length is the distance from the corner trimming end to the arc edge;

S5, enabling the grinding wheel to rotate, enabling the rotating shaft to rotate in a reciprocating mode, and adjusting the position of the second movable end on the secondary adjusting line step by step until the angle trimming end moves to the feeding length on the basis of the initial position.

Compared with the prior art, the grinding wheel R angle repairing device and method for the grinding machine have the following beneficial effects:

(1) The first adjusting component, the rotating shaft and the second adjusting component are arranged, the center of the axis of the rotating shaft and the circle center corresponding to the circular arc are positioned on the same straight line through the first adjusting component, the rotation of the rotating shaft can be equivalent to the circle drawing motion by the center of the circle, and the radius of the corresponding circular arc is adjusted in the trimming process through the second movable end on the second adjusting component, so that the high-precision polishing trimming operation is performed through the center position of the circular arc and the radius of the circle where the circular arc is positioned, the error of manual R trimming is avoided, and the convenience of R trimming operation is improved;

(2) The connecting component is used for adjusting the position of the intersection point of the extension line of the rotating shaft and the edge of the grinding wheel, wherein the intersection point of the shortest connecting line of the extension line of the rotating shaft and the axis of the grinding wheel is the circle center of a certain corresponding arc on the arc, and the connecting component can finely adjust the position of the circle center, namely the position of the extension line of the rotating shaft in the thickness direction of the grinding wheel, so that the R trimming requirements of different grinding wheels are met, and applicable scenes are increased;

(3) The trimming assembly is arranged, the adjusting direction of the primary adjusting wire is used as an x-axis and the adjusting direction of the primary adjusting wire is used as a y-axis, the adjusting direction of the connecting assembly is used as a z-axis, and the position of the diamond pen can be adjusted through the three-dimensional coordinate system before R trimming operation, so that trimming precision and accuracy are ensured.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of a grinding wheel R angle dressing apparatus of the grinding machine of the present invention;

FIG. 2 is a perspective view of the grinding wheel R angle trimming device of the grinding machine of the invention;

FIG. 3 is another perspective view of the grinding wheel R angle finishing apparatus of the grinding machine of the present invention;

FIG. 4 is a schematic diagram showing the steps of the R angle repairing method of the grinding wheel of the grinding machine.

Detailed Description

The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.

As shown in fig. 1-3, the grinding wheel R angle dressing device for the grinding machine, provided by the invention, is directly installed on the grinding machine and used for online R angle dressing of the grinding wheel, and specifically comprises a first adjusting component 1, a rotating shaft 2, a second adjusting component 3 and a diamond pen 4.

On the grinding wheel, the R angle is an arc surface on the edge, the arc surface rotates along the center of the grinding wheel through an arc line for one circle to form a complete R angle, the complete R angle can be protruded towards the outside of the grinding wheel or recessed towards the center of the grinding wheel, the special R angle is specifically required to be set and selected according to a processing scene, and meanwhile, the special R angle can be formed by splicing two or more arc lines and then rotating along the center of the grinding wheel for one circle.

The first adjusting component 1 is arranged on the grinding machine, and can be particularly arranged on a workbench of the grinding machine, the first adjusting component 1 comprises a first movable end, the first movable end can move along a primary adjusting line, the primary adjusting line is a straight line parallel to the plane of the grinding wheel, the explanation about the R angle shows that the arc which rotates on the grinding wheel to form an arc surface can be regarded as a section of arc on a circle, the arc has a corresponding circle center, the first adjusting component 1 can move the first movable end along the primary adjusting line, and the first movable end moving along the primary adjusting line can adjust the position of the circle center corresponding to the arc because the primary adjusting line is parallel to the plane of the grinding wheel, and the primary adjusting process is also a process of determining the circle center corresponding to the section of arc in the R angle.

The rotating shaft 2 is rotatably arranged on the first movable end, the axle center of the rotating shaft 2 is mutually perpendicular to the primary adjusting line and is positioned on the plane where the grinding wheel is positioned, the first movable end is used for adjusting the middle interval, the middle interval is the shortest interval from the extension line of the axle center of the rotating shaft 2 to the axle center of the grinding wheel, the axle center of the rotating shaft 2 and the circle center corresponding to the circular arc are positioned on the same straight line through the first adjusting component 1, and the rotation of the rotating shaft 2 can be equivalent to the circle drawing motion by using the circle center.

The second adjusting component 3 is arranged on the rotating shaft 2, the second adjusting component 3 comprises a second movable end, the second movable end can move along a secondary adjusting line, the secondary adjusting line is a straight line perpendicular to the axis of the rotating shaft 2, the radius of a corresponding circular arc is also a main parameter except that the circle center position of an arc line on an R angle is a main parameter, the second adjusting component 3 is arranged on the rotating shaft 2, and the radius of the corresponding circular arc can be adjusted through the second movable end in the trimming process, and particularly the radius of the circular arc can be adjusted through moving the second movable end in the trimming process.

It should be noted that, the secondary adjusting line does not actually exist, but is introduced for convenience of explanation in this embodiment, in the actual adjusting process, the secondary adjusting line moves along with the rotation of the rotating shaft 2, and after the rotating shaft 2 reciprocates a plurality of times, the second movable end can be moved through the second adjusting component 3, so that the radius of the arc is continuously changed, and the arc is gradually changed into the required arc.

The diamond pen 4 is arranged on the second movable end, in particular fixed on the second movable end, when finishing an R angle, the diamond pen 4 and the second movable end do not need to move relatively, the diamond pen 4 comprises an angle finishing end far away from the second movable end, the angle finishing end is used for finishing a grinding wheel, when the grinding wheel is used for finishing the R angle, the angle finishing end is directly contacted with the edge of the grinding wheel, the grinding wheel is polished and finished by the angle finishing end through continuous rotation of the grinding wheel, so as to obtain the required R angle, the axis of the diamond pen 4 is parallel to a secondary adjusting line, the axis of the diamond pen 4 is required to be ensured to be parallel to the secondary adjusting line in the R finishing or subsequent adjusting process, otherwise, the arc size error of the R angle is larger in the R finishing process, in addition, an extension line of the axis of the diamond pen 4 is required to be ensured to intersect with the axis of the grinding wheel, and the second movable end is used for adjusting the angle finishing interval, and the angle finishing interval is the shortest interval from the axis of the rotating shaft 2 to the angle finishing end of the extension line 4.

In the R trimming process, the second movable end continuously adjusts the trimming angle interval until the trimming angle interval is equal to the radius of the trimmed arc line, and the trimming action of the corresponding arc line is completed.

It should be noted that, for the R angle protruding toward the outside of the grinding wheel, the distance l ₁ by which the corner trimming end is to be adjusted is expressed as: i ₁ = d-R, where d is the length of the dressing pitch, R is the radius of the desired dressing arc, that is, when the R angle is convex towards the outside of the grinding wheel, the length of the dressing end to be moved is the difference between the dressing pitch and the radius of the arc, and for the R angle concave towards the axis of the grinding wheel, the distance l ₂ that the dressing end needs to be adjusted is expressed as: i ₂ =d+r, that is, when the R angle is recessed toward the inside of the grinding wheel, the length of the dressing end to be moved is the sum of the dressing angle interval and the arc radius.

In this embodiment, still set up coupling assembling 5, coupling assembling 5 sets up on first movable end, pivot 2 and coupling assembling 5 swing joint, coupling assembling 5 are used for adjusting the position that 2 extension lines of pivot and emery wheel border intersect, the intersection point of 2 extension lines of pivot and emery wheel axle center shortest connecting line is the centre of a circle of a certain corresponding circular arc on the pitch arc, the coupling assembling 5 of setting can finely tune this centre of a circle's position, the position of 2 extension lines of pivot in the thickness direction of emery wheel promptly, for some comparatively simple application scenarios, for example when the emery wheel only need the R angle of the rotatory constitution of trimming single circular arc, then the default position of a pivot 2 of accessible coupling assembling 5 set up, need not to finely tune through coupling assembling 5.

Specifically, the connecting assembly 5 includes a connecting plate 51 and a mounting seat 52, the connecting plate 51 is fixed on the first movable end, a slot is formed in the connecting plate 51, the mounting seat 52 is fixed on the connecting plate 51 through a bolt and the slot, the rotating shaft 2 penetrates through the mounting seat 52 and can rotate relative to the mounting seat 52, the mounting seat 52 can adjust the relative position with the connecting plate 51 through the slot so as to change the position of the intersection point of the extension line of the rotating shaft 2 and the edge of the grinding wheel, the mounting seat 52 can be directly used as a bearing seat, the rotating shaft 2 is fixed in the mounting seat 52, and can rotate relative to the mounting seat 52, and the fine adjustment of the position of the rotating shaft 2 can be completed by changing the relative position of the mounting seat 52 and the connecting plate 51 due to the fact that the rotating shaft 2 is arranged on the mounting seat 52, and the slot is arranged at the same time, and offset in the process of adjusting the axis of the rotating shaft 2 is avoided.

In this embodiment, the first adjusting component 1 includes first fixing base 11, first connecting piece 12 and first lead screw 13, and first fixing base 11 is fixed on the milling machine, first connecting piece 12 and first fixing base 11 sliding connection, first fixing base 11 extends to the inside of first connecting piece 12, and first lead screw 13 activity sets up on first connecting piece 12, first lead screw 13 can rotate for first connecting piece 12 around the axle center, first lead screw 13 runs through first fixing base 11, and with first fixing base 11 threaded connection, has set up a fixed arm on the first fixing base 11, fixes the one end of fixed arm and grinding machine workstation to erect this device to the position that can carry out the processing to the emery wheel, set up a dovetail on the first fixing base 11 that sets up, correspondingly, set up a dovetail on first connecting piece 12 for first connecting piece 12 and first fixing base 11 can cooperate the slip through the dovetail, and first connecting piece 12 wholly be the cavity cuboid, first lead screw 13 has set up at first lug 13 at first connecting piece 12 and first lug through first lug 13, and first threaded connection 13 has carried out the first lug through the first lug, and first lug connection is carried out.

In addition, the first screw rod 13 can be driven by a motor to automatically repair the R of the grinding wheel of the grinding machine in cooperation with machine vision, besides the mode, a hand wheel can be installed on the first screw rod 13 for operators to manually control and adjust, and the grinding machine can be specifically set according to requirements.

In this embodiment, the second adjusting component 3 includes a second fixing seat 31, a second connecting piece 32 and a second screw rod 33, the second fixing seat 31 is fixed at the end of the rotating shaft 2, the second connecting piece 32 is slidably connected with the second fixing seat 31, the second fixing seat 31 extends to the inside of the first connecting piece 12, the second screw rod 33 is movably disposed on the second connecting piece 32, the second screw rod 33 can rotate around the axis relative to the second connecting piece 32, the second screw rod 33 penetrates through the second fixing seat 31 and is in threaded connection with the second fixing seat 31, the second adjusting component 3 is similar to the first adjusting component 1 in structure, except that the size of the second adjusting component 3 is smaller, and meanwhile, the second screw rod 33 is directly connected with a dovetail block on the second fixing seat 31, so as to reduce occupied space.

The driving method of the second screw 33 may be selected to be the same as that of the first screw 13.

In this embodiment, a fine adjustment assembly 6 is further provided, the fine adjustment assembly 6 is disposed on the second movable end, the fine adjustment assembly 6 is used for connecting the second movable end with the diamond pen 4, the fine adjustment assembly 6 is used for adjusting the relative positions of the diamond pen 4 and the second movable end, so that the axis extension line of the diamond pen 4 intersects with the axis of the grinding wheel, for convenience of explanation, the adjustment direction of the primary adjustment line is taken as the x axis, the adjustment direction of the fine adjustment assembly 6 perpendicular to the adjustment direction can be taken as the y axis, the fine adjustment direction of the connection assembly 5 can be taken as the z axis, and before the R trimming operation, the position adjustment of the diamond pen 4 can be performed through the three-dimensional coordinate system, so as to ensure trimming precision and accuracy.

Specifically, the fine adjustment assembly 6 includes a cross arm 61 and a pen holder 62, the cross arm 61 is fixed on the second movable end, the pen holder 62 is fixed relative to the cross arm 61, the diamond pen 4 is fixed on the pen holder 62, the diamond pen 4 faces the axis of the grinding wheel, a waist hole is formed in the pen holder 62, and the cross arm 61 is connected with the pen holder 62 through the waist hole and the bolt, so that the pen holder 62 can adjust the relative position with the cross arm 61 through the waist hole.

The junction of xarm 61 and pen holder 62 has all set up the cooperation groove, and xarm 61 and pen holder 62 are connected through the cooperation groove and the relative adjustment of position are provided with the slot on pen holder 62, and buddha's warrior attendant pen 4 inserts the inside of pen holder 62 through the slot, is provided with the screw in the outside of pen holder 62, and the screw extends to the slot in with buddha's warrior attendant pen 4 fixed, and pen holder 62 can be through waist round hole and the y-axis position of bolt adjustment buddha's warrior attendant pen 4.

As shown in fig. 1 to 4, the grinding machine grinding wheel R angle trimming method of the present invention is realized based on the grinding machine grinding wheel R angle trimming device, specifically, the grinding machine grinding wheel R angle trimming device is used to trim the grinding wheel R angle so as to adapt to a workpiece to be processed, and the method includes steps S1 to S5.

Step S1: setting the initial position of the corner trimming end.

Before repairing R, the specific position of the corner repairing end needs to be determined so as to provide reference for the subsequent adjustment of the position of the corner repairing end and the feeding length during R repairing operation, in the process of manual adjustment, a technician needs to use a measuring tool to determine parameters such as the relative distance between the corner repairing end and a grinding wheel, and for mechanized automatic R repairing, the three-dimensional coordinates of the corner repairing end can be calibrated directly through a camera.

Step S2: setting an R angle parameter, wherein the R angle parameter comprises the distance from the center of the circular arc edge to the axis of the grinding wheel and the radius of the circular arc edge.

The R angle is an arc surface on the edge, the arc surface rotates along the center of the grinding wheel through an arc line to form a complete R angle, the complete R angle can be raised towards the outside of the grinding wheel or recessed towards the center of the grinding wheel, the special R angle is specifically required to be set and selected according to a processing scene, meanwhile, the special R angle also exists, the special R angle can be formed by splicing two or more arc lines and then rotating along the center of the grinding wheel, the arc mentioned above is an arc on an arc line forming the outer arc surface of the grinding wheel, the distance from the center of the arc edge to the center of the grinding wheel is the radius of a circle drawn by the center around the center of the grinding wheel, the radius of the arc edge is the radius of a circle corresponding to the arc edge, the R angle parameter is determined by a technician according to actual requirements before processing, after the determination, the corner trimming end can be adjusted according to the R angle parameter and moves in the R trimming process, in addition, the R angle parameter can comprise an arc with parameters, if the arc is formed by a plurality of arcs, the arc is required to be split, and related parameters of each arc are acquired, and the arc is specifically comprises the coordinates of the center of the arc and the corresponding radius.

Step S3: and adjusting the position of the first movable end on the primary adjusting line to ensure that the middle distance is equal to the distance from the center of the circular arc edge to the axis of the grinding wheel.

The device can know that the primary adjusting line is parallel to the plane where the grinding wheel is located, the position of the first movable end is adjusted on the primary adjusting line to be equal to the relative position of the rotating shaft 2 and the grinding wheel, and the intersection point of the extending line of the axis of the rotating shaft 2 and the perpendicular line of the axis of the grinding wheel is the circle center of the circular arc, that is, the step can determine the circle center of the circular arc to be trimmed by adjusting the first movable end and the distance between the center of the circular arc edge and the axis of the grinding wheel, and position the rotating shaft 2 to the required position.

Step S4: and obtaining the feeding length according to the initial position of the corner trimming end and the R angle parameter, wherein the feeding length is the distance from the corner trimming end to the arc edge.

For the R angle protruding towards the outside of the grinding wheel, the distance l ₁ that the corner trimming end needs to be adjusted is expressed as: i ₁ = d-R, where d is the length of the dressing pitch, R is the radius of the desired dressing arc, that is, when the R angle is convex towards the outside of the grinding wheel, the length of the dressing end to be moved is the difference between the dressing pitch and the radius of the arc, and for the R angle concave towards the axis of the grinding wheel, the distance l ₂ that the dressing end needs to be adjusted is expressed as: i ₂ =d+r, that is, when the R angle is recessed toward the inside of the grinding wheel, the length of the corner trimming end to be moved is the sum of the corner trimming distance and the radius of the arc, and the feeding length is the distance of the corner trimming end to be adjusted.

Step S5: the grinding wheel is rotated, the rotating shaft 2 is reciprocally rotated, and meanwhile, the position of the second movable end is gradually adjusted on the secondary adjusting line until the angle trimming end moves to the feeding length on the basis of the initial position.

In a specific R trimming operation process, the grinding wheel is required to rotate, the rotating shaft 2 reciprocally rotates according to the angle corresponding to the arc to be trimmed, in the reciprocating motion process of the rotating shaft 2, the corner trimming end is adjusted to feed towards the grinding wheel and then contact with the grinding wheel, the grinding wheel is gradually polished, after the corner trimming end moves to the feeding length, the corresponding arc is polished on the grinding wheel, the R corner trimming processing of the R corner can be directly completed only by one section of arc, and the R corner formed by multiple sections of arcs is required to return to the step S3 until finishing the complete arc forming the R corner.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. The R angle trimming device for the grinding wheel of the grinding machine is characterized by comprising a first adjusting component (1), a rotating shaft (2), a second adjusting component (3) and a diamond pen (4), wherein,

The first adjusting assembly (1) is arranged on the grinding machine, the first adjusting assembly (1) comprises a first movable end, the first movable end can move along a primary adjusting line, and the primary adjusting line is a straight line parallel to the plane of the grinding wheel;

The rotating shaft (2) is rotatably arranged on the first movable end, the axis of the rotating shaft (2) is mutually perpendicular to the primary adjusting line and is positioned on the plane of the grinding wheel, the first movable end is used for adjusting the middle interval, and the middle interval is the shortest interval from the axis extension line of the rotating shaft (2) to the axis of the grinding wheel;

The second adjusting component (3) is arranged on the rotating shaft (2), the second adjusting component (3) comprises a second movable end, the second movable end can move along a secondary adjusting line, and the secondary adjusting line is a straight line perpendicular to the axis of the rotating shaft (2);

The diamond pen (4) is arranged on the second movable end, the diamond pen (4) comprises an angle trimming end far away from the second movable end, the angle trimming end is used for trimming a grinding wheel, the axis of the diamond pen (4) is parallel to the secondary adjusting line, an extension line of the axis of the diamond pen (4) is intersected with the axis of the grinding wheel, the second movable end is used for adjusting the angle trimming distance, and the angle trimming distance is the shortest distance from the axis extension line of the rotating shaft (2) to the angle trimming end of the diamond pen (4).

2. The grinding machine grinding wheel R angle repairing device according to claim 1, further comprising a connecting component (5), wherein the connecting component (5) is arranged on the first movable end, and the rotating shaft (2) is movably connected with the connecting component (5).

3. The grinding wheel R-angle dressing device according to claim 2, wherein the connection assembly (5) comprises a connection plate (51) and a mounting seat (52), wherein,

The connecting plate (51) is fixed on the first movable end, and a straight port is formed in the connecting plate (51);

The mounting seat (52) is fixed on the connecting plate (51) through the bolt and the straight line port, the rotating shaft (2) penetrates through the mounting seat (52) and can rotate relative to the mounting seat (52), and the relative position of the mounting seat (52) and the connecting plate (51) can be adjusted through the straight line port so as to change the intersection point position of the extension line of the rotating shaft (2) and the edge of the grinding wheel.

4. The grinding wheel R-angle dressing device according to claim 1, wherein the first adjusting assembly (1) comprises a first fixing base (11), a first connecting piece (12) and a first screw (13), wherein,

The first fixing seat (11) is fixed on the grinding machine;

The first connecting piece (12) is in sliding connection with the first fixing seat (11), and the first fixing seat (11) extends to the inside of the first connecting piece (12);

The first screw rod (13) is movably arranged on the first connecting piece (12), the first screw rod (13) can rotate around the axis relative to the first connecting piece (12), and the first screw rod (13) penetrates through the first fixing seat (11) and is in threaded connection with the first fixing seat (11).

5. The grinding wheel R-angle dressing device according to claim 1, wherein the second adjusting assembly (3) comprises a second fixing base (31), a second connecting piece (32) and a second screw (33), wherein,

The second fixing seat (31) is fixed at the end part of the rotating shaft (2);

The second connecting piece (32) is in sliding connection with the second fixing seat (31), and the second fixing seat (31) extends to the inside of the first connecting piece (12);

The second screw rod (33) is movably arranged on the second connecting piece (32), the second screw rod (33) can rotate around the axis relative to the second connecting piece (32), and the second screw rod (33) penetrates through the second fixing seat (31) and is in threaded connection with the second fixing seat (31).

6. The grinding machine grinding wheel R angle trimming device according to claim 1, further comprising a fine tuning assembly (6), wherein the fine tuning assembly (6) is arranged on the second movable end, the fine tuning assembly (6) is used for connecting the second movable end and the diamond pen (4), and the fine tuning assembly (6) is used for adjusting the relative position of the diamond pen (4) and the second movable end so that an axis extension line of the diamond pen (4) intersects with the axis of the grinding wheel.

7. The grinding wheel R angle trimming device for a grinding machine according to claim 6, wherein the fine adjustment assembly (6) comprises a cross arm (61) and a pen holder (62), wherein,

The cross arm (61) is fixed on the second movable end;

The pen holder (62) is fixed with the cross arm (61) relatively, the diamond pen (4) is fixed on the pen holder (62), the diamond pen (4) faces towards the axis of the grinding wheel, a waist round hole is formed in the pen holder (62), and the cross arm (61) is connected with the bolt through the waist round hole, so that the pen holder (62) can adjust the relative position of the cross arm (61) through the waist round hole.

8. The grinding wheel R angle trimming device of the grinding machine according to claim 4, wherein the first connecting piece (12) is provided with a dovetail groove, and one side of the first fixing seat (11) extends into the dovetail groove and slides in a matched manner with the first connecting piece (12) through the dovetail groove.

9. The grinding wheel R angle trimming device of the grinding machine according to claim 5, wherein the second connecting piece (32) is provided with a dovetail groove, and one side of the second fixing seat (31) extends into the dovetail groove and slides in a matched manner with the second connecting piece (32) through the dovetail groove.

10. A method for repairing R-angle of grinding wheel of grinding machine, characterized in that it is realized based on the grinding wheel repairing R-angle device of grinding machine according to any one of claims 1-9, said method comprising the following steps:

S1, setting an initial position of a corner trimming end;

s5, enabling the grinding wheel to rotate, enabling the rotating shaft (2) to rotate in a reciprocating mode, and adjusting the position of the second movable end on the secondary adjusting line step by step until the angle trimming end moves to the feeding length on the basis of the initial position.