Device and method for realizing automatic halving of grinding allowance

Abstract

According to the grinding allowance automatic halving implementation device and method provided by the embodiment of the invention, in the grinding process of a superhard cutter, the position images of the center of the rotating disc and the to-be-ground blade are detected in real time through the image detection assembly mounted on the cutter rest assembly, and the grinding allowance is automatically halved through the movement and position analysis of the to-be-ground blade around the center of the rotating disc. The position of the center of the rotating disc is found firstly, the error between the center of the rotating disc and the arc center of the to-be-sharpened knife tip is automatically recognized and calculated, and the center of the rotating disc is aligned with the image detection center by controlling the first cross-shaped workbench to move. Meanwhile, the vertical distances between the arc center of the to-be-sharpened knife point and the two linear edges of the to-be-sharpened knife point are equal to the radius of the arc of the to-be-sharpened knife point, and the two linear edges are equally divided in the middle relative to the rotating center of the rotating disc, so that the arc of the to-be-sharpened knife point and the linear edge are tangent and smoothly transited, and the grinding precision of the arc of the knife point is greatly ensured.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of superhard tool grinding, and specifically to a device and method for realizing automatic centering of grinding allowance. Background Art

[0002] The machining allowance left after rough machining and semi-finishing of the blank to be removed in the grinding process is called grinding allowance. In the grinding process of superhard tools, the size of the grinding allowance greatly affects the size of the grinding wheel, thereby affecting the grinding accuracy. In order to ensure the grinding accuracy of the tool tip arc, the two straight edges and the arc of the tool tip must have sufficiently small and uniform allowances. This requires the cross table to automatically reposition the blade, and the cross table rotation center coincides with the tool tip arc center. Summary of the invention

[0003] To this end, an embodiment of the present invention provides a device and method for realizing automatic center division of grinding allowance, so as to solve the technical problem of how to ensure the grinding accuracy of the tool tip arc during the grinding process of superhard tools.

[0004] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0005] According to a first aspect of an embodiment of the present invention, an embodiment of the present application provides a device for realizing automatic center division of grinding allowance, the device comprising:

[0006] A first base, comprising a first bearing body and a second bearing body;

[0007] A grinding assembly, used for grinding the blade to be ground, and installed on the first carrying body through a first carriage;

[0008] A tool holder assembly, used for clamping the blade to be sharpened, is mounted on the second bearing body through a second carriage, a ring base and a rotating disk are provided on the second carriage, and the lower end of the rotating disk can be rotatably sleeved in the middle opening of the ring base;

[0009] An image detection component is installed on the tool holder component through a column and is used to detect the center of the rotating disk and the position image of the blade to be sharpened;

[0010] An adjustment component, using a first cross workbench to adjust the arc center of the tip of the blade to be sharpened, wherein the first cross workbench is assembled on the rotating disk, and the tool holder component is mounted on the first cross workbench;

[0011] The controller is used to control the movement of the adjustment component and the image detection component based on the image information output by the image detection component, and cooperate with the rotation of the rotating disk on the ring base to complete the grinding of the arc of the tool tip to be sharpened.

[0012] Furthermore, the upper end surfaces of the first bearing body and the second bearing body are respectively provided with a first guide rail and a second guide rail, the first guide rail and the second guide rail are arranged perpendicular to each other, and the bottoms of the first drag plate and the second drag plate are respectively clamped on the first guide rail and the second guide rail.

[0013] Furthermore, the grinding assembly includes: a box frame, a spindle and a grinding wheel, the box frame is installed on the top of the first drag plate, the box frame is provided with an arc guide rail on the side close to the tool holder assembly, the spindle is installed on the arc guide rail through a clamping plate, the outer side of the arc guide rail is provided with a first adjustment angle scale, and the grinding wheel is installed to the outer end of the spindle.

[0014] Furthermore, the first cross workbench includes: a second base, a third drag plate, and a fourth drag plate; the upper end of the rotating disk is connected to the bottom of the second base near one end, the bottom of the third drag plate is clamped on the second base, the bottom of the fourth drag plate is clamped on the third drag plate, and the third drag plate and the fourth drag plate are vertically arranged.

[0015] Furthermore, the tool holder assembly includes: a support frame and a clamping member, the bottom of the support frame is mounted on the fourth drag plate, the clamping member is assembled on the support frame, and the clamping member clamps the blade to be sharpened on a side close to the grinding wheel.

[0016] Furthermore, the second base accommodates the upper end of the rotating disk through a first assembly hole, and a second assembly hole is opened on the second base at a position corresponding to the first assembly hole. The bottom of the first assembly hole is connected to the second assembly hole through a positioning hole, and under the action of the positioning hole, the centers of the first assembly hole and the second assembly hole are coaxial.

[0017] Furthermore, the image detection component includes: an image collector, which is connected to the verticality adjustment plate through a focus adjustment plate, the verticality adjustment plate is installed to the top of the column through a verticality adjustment base, and the lower end of the column is installed to the second drag plate through a third base, and the focus adjustment plate is controlled to move on the verticality adjustment plate by a focus adjustment handwheel.

[0018] Furthermore, a light source, a protective mirror and an adjustment seat are installed in the second assembly hole, the light source is located in the adjustment seat and emits parallel light toward the image collector, the protective mirror is located above the light source and covers the upper part of the adjustment seat, and the center of the light source and the positioning hole are the same.

[0019] Furthermore, a plug-in is installed at the top end of the vertical adjustment vertical plate, and the plug-in can be rotatably inserted into the top end groove of the vertical adjustment base vertical side plate.

[0020] Furthermore, a second cross workbench is also provided at the top of the column, and the second cross workbench includes: a lateral position adjustment slide, a longitudinal position adjustment slide, and a longitudinal position adjustment substrate. The bottom plate of the verticality adjustment base is installed on the lateral position adjustment slide, and the bottom of the lateral position adjustment slide is clamped on the longitudinal position adjustment slide, and the lateral position adjustment slide is controlled to move on the longitudinal position adjustment slide by a lateral adjustment hand wheel; the bottom of the longitudinal position adjustment slide is clamped on the longitudinal position adjustment substrate, and the longitudinal position adjustment slide is controlled to move on the longitudinal position adjustment substrate by a longitudinal adjustment hand wheel. The longitudinal position adjustment substrate is installed to the top of the column, and the lateral position adjustment slide and the longitudinal position adjustment slide are vertically arranged.

[0021] Further, detecting a first adjustment parameter based on the first image includes:

[0022] Extract the first position coordinates of the image detection center from the first image respectively and the second position coordinate of the rotating disk's rotation center ;

[0023] Using the first position coordinates and the second position coordinates The first adjustment parameter is calculated, and the calculation formula of the first adjustment parameter is: ; in, is the lateral adjustment value of the first adjustment parameter, is the longitudinal adjustment value of the first adjustment parameter.

[0024] Further, detecting a second adjustment parameter based on the second image detection image includes:

[0025] Acquire a set of sampling points from the second image based on the first preset tool tip straight line and the second preset tool tip straight line;

[0026] Using the position coordinates of each sampling point, construct the first parameter equation group, the second parameter equation group, the third parameter equation group, and the fourth parameter equation group corresponding to the first preset tool tip straight line, the first target tool tip straight line, the second preset tool tip straight line, and the second target tool tip straight line, respectively;

[0027] Solve each set of equations to obtain the coordinates of the first intersection of the first preset tool tip straight line and the second preset tool tip straight line and the coordinates of the second intersection point of the first target tool tip straight line and the second target tool tip straight line ;

[0028] Using the coordinates of the first intersection point and the coordinates of the second intersection point Calculate the second adjustment parameter. The calculation formula of the second adjustment parameter is: ; in, is the lateral adjustment value of the second adjustment parameter, is the longitudinal adjustment value of the second adjustment parameter.

[0029] According to a second aspect of an embodiment of the present invention, an embodiment of the present application provides a method for realizing automatic center division of grinding allowance, the method comprising:

[0030] Return the tool holder assembly holding the blade to be sharpened to its initial position, so that the blade rotates and drives the center into the field of view of the image detection;

[0031] Acquire a first image of the center of the blade rotation drive;

[0032] detecting a first adjustment parameter based on the first image;

[0033] Adjust the image detection center to coincide with the blade rotation driving center based on the first adjustment parameter;

[0034] Adjust the grinding assembly to align with the blade to be sharpened;

[0035] Controlling the blade to be sharpened to move relative to the grinding assembly to perform initial grinding on the first pre-adjusted blade tip straight line and the second pre-adjusted blade tip straight line of the blade to be sharpened;

[0036] Acquiring a second image of the blade to be sharpened;

[0037] detecting a second adjustment parameter based on the second image detection image;

[0038] Adjust the center of the arc of the tool tip to be sharpened to coincide with the image detection center based on the second adjustment parameter;

[0039] The blade to be sharpened is controlled to rotate, and the arc of the blade tip to be sharpened is ground.

[0040] Compared with the prior art, the embodiment of the present application provides a device and method for realizing automatic center division of grinding allowance. During the grinding process of superhard tools, the image detection component installed on the tool holder component detects the position image of the center of the rotating disk and the blade to be ground in real time, first finds the position of the center of the rotating disk, automatically identifies and calculates the error between the center of the rotating disk and the center of the arc of the tip of the tool to be ground, and aligns the center of the rotating disk with the image detection center by controlling the movement of the first cross worktable. At the same time, the vertical distance between the center of the arc of the tip of the tool to be ground and the two straight edges of the tip of the tool to be ground is equal to the radius of the arc of the tip of the tool to be ground, and the two straight edges are equidistantly divided about the rotation center of the rotating disk, so that the arc of the tip of the tool to be ground and the straight edge can be tangent and smoothly transitioned, which greatly guarantees the grinding accuracy of the tip of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0042] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0043] Figure 1 A schematic diagram of the overall structure of a device for realizing automatic center division of grinding allowance provided by an embodiment of the present invention; Figure 2 A side view of a device for realizing automatic center division of grinding allowance provided by an embodiment of the present invention; Figure 3 A schematic diagram of control logic based on a controller in a device for realizing automatic center division of grinding allowance provided by an embodiment of the present invention; Figure 4 An overall schematic diagram of a first cross workbench in a device for realizing automatic center division of grinding allowance provided by an embodiment of the present invention; Figure 5 A side view of a first cross workbench in a device for realizing automatic center division of grinding allowance provided by an embodiment of the present invention; Figure 6 A top view of a first cross workbench in a device for realizing automatic center division of grinding allowance provided by an embodiment of the present invention; Figure 7 The first cross workbench presses the first cross workbench press in the device for realizing automatic center division of grinding allowance provided by the embodiment of the present invention. Figure 6 The longitudinal section of the CC line shown in ; Figure 8 A schematic structural diagram of a tool holder assembly, an image detection assembly, and an adjustment assembly of a device for realizing automatic center division of grinding allowance provided by an embodiment of the present invention; Fig. 9 A device for realizing automatic center division of grinding allowance provided by an embodiment of the present invention Figure 8 Schematic diagram of the tip of the knife to be sharpened shown in I; Fig.10 A flow chart of a method for realizing automatic center division of grinding allowance provided by an embodiment of the present invention; Fig.11 A field of view image captured by the image collector provided by the embodiment of the present invention when the arc center of the tool tip to be sharpened does not coincide with the image detection center; Fig.12 A field of view image captured by the image collector provided by the embodiment of the present invention when the arc center of the tool tip to be sharpened coincides with the image detection center; Fig.13 A schematic diagram of the principle of detecting a second adjustment parameter based on a second image provided in an embodiment of the present invention.

[0044] Description of reference numerals: 01. First base; 02. Grinding assembly; 03. Tool holder assembly; 04. Image detection assembly; 05. Adjustment assembly; 06. Controller; 07. First bearing body; 08. Second bearing body; 09. First guide rail; 10. Second guide rail; 11. First carriage; 12. Box frame; 13. Spindle; 14. Grinding wheel; 15. Clamping plate; 16. Arc guide rail; 17. First adjustment angle scale; 18. Column; 19. Second carriage; 20. Ring base; 21. Rotating disk; 22. First cross workbench; 2 3. Second base; 24. Third carriage; 25. Fourth carriage; 26. Second motor; 27. Third motor; 28. Light source; 29. ​​Rotation center of rotating disk; 30. T-slot; 31. First assembly hole; 32. Positioning hole; 33. Second assembly hole; 34. Protective mirror; 35. Adjustment seat; 36. First lead screw; 37. First nut seat; 38. First elastic coupling; 39. First lead screw seat; 40. Second lead screw; 41. Fourth guide rail; 42. Image detection center; 43. Support frame; 44. Clamping piece; 4 5. CCD camera; 46. Industrial microscope; 47. Focus adjustment hand wheel; 48. Focus adjustment vertical plate; 49. Vertical adjustment vertical plate; 50. Vertical adjustment base; 51. Plug-in; 52. Groove; 53. Second cross table; 54. Lateral position adjustment slide; 55. Longitudinal position adjustment slide; 56. Longitudinal position adjustment base plate; 57. Lateral adjustment hand wheel; 58. Longitudinal adjustment hand wheel; 59. Third base; 60. Blade to be sharpened; 61. Arc of blade tip to be sharpened; 62. First pre-adjusted blade tip straight line; 63. The second pre-adjusted tool tip straight line; 64, the center of the arc of the tool tip to be sharpened; 65, the image detection field of view division line; 66, the image detection field of view division center; 67, the first motor; 68, the first target tool tip straight line; 69, the second target tool tip straight line; 70, the first perpendicular foot point; 71, the second perpendicular foot point; 72, the first starting point; 73, the first end point; 74, the second starting point; 75, the second end point; 76, the first intersection point; 77, the second intersection point; 78, the first perpendicular line; 79, the second perpendicular line; 80, the third perpendicular foot point; 81, the fourth perpendicular foot point. DETAILED DESCRIPTION

[0045] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The purpose of the embodiments of the present application is to solve the technical problem of how to ensure the grinding accuracy of the tool tip arc during the grinding process of superhard tools.

[0047] In order to solve the above technical problems, Figure 1 and Figure 2 As shown, an embodiment of the present application provides a device for realizing automatic center division of grinding allowance, which specifically includes: a first base 01, a grinding assembly 02, a tool holder assembly 03, an image detection assembly 04 and an adjustment assembly 05.

[0048] Furthermore, the first base 01 includes a first bearing body 07 and a second bearing body 08 which are integrally arranged. The first bearing body 07 and the second bearing body 08 are integrally arranged. The first bearing body 07 and the second bearing body 08 are perpendicular to each other. The second bearing body 08 intersects with the middle of the first bearing body 07 to form a T-shape. The upper end surfaces of the first bearing body 07 and the second bearing body 08 are respectively provided with a first guide rail 09 and a second guide rail 10, and the first guide rail 09 and the second guide rail 10 are perpendicular to each other.

[0049] The grinding assembly 02 is used to grind the blade 60 to be sharpened, and is mounted on the first carrier body 07 through the first carriage 11, and the bottom of the first carriage 11 is clamped on the first guide rail 09. In the embodiment of the present application, the first guide rail 09 is set in the direction of the X axis, and the grinding assembly 02 moves along the first guide rail 09 driven by the first carriage 11.

[0050] Specifically, the grinding assembly 02 includes: a box frame 12, a spindle 13 and a grinding wheel 14. The box frame 12 is installed on the first carriage 11, and an arc guide rail 15 is provided on the side of the box frame 12 close to the tool holder assembly 03. The spindle 13 is installed on the arc guide rail 15 through a clamping plate 16. The clamping plate 16 moves along the arc guide rail 15 under the action of an external force, so as to continuously adjust the pitch angle of the spindle 13 and the grinding wheel 14 during the grinding process, so as to grind the arc 61 of the tool tip to be ground to form a blade. The outer side surface of the arc guide rail 15 is provided with a first adjustment angle scale for indicating the pitch angle adjustment value of the spindle 13 and the grinding wheel 14, and the grinding wheel 14 is installed to the outer end of the spindle 13.

[0051] The tool holder assembly 03 is used to clamp the blade 60 to be sharpened, and is installed on the second carrier body 08 through the second carriage 19, and the bottom of the second carriage 19 is clamped on the second guide rail 10. In the embodiment of the present application, the second guide rail 10 is set in the Y-axis direction, and the tool holder assembly 03 moves along the second guide rail 10 driven by the second carriage 19.

[0052] The second carriage 19 is provided with a ring base 20 and a rotating disk 21. The ring base 20 is mounted on the second carriage 19. The lower end of the rotating disk 21 can be rotatably sleeved in the middle opening of the ring base 20. In the embodiment of the present application, the rotating disk 21 can be driven by a first motor 67. The first motor 67 is Figure 1The specific installation position is not shown in the figure. The first motor 67 can be installed below the upper end surface of the second carrier body 08, and the lower end of the rotating disk 21 passes through the upper end surface of the second carrier body 08 and is connected to the output shaft of the first motor 67. In this way, during the grinding process, the rotating disk 21 is driven by the first motor 67 to rotate in the ring base 20, thereby driving the spindle 13 and the grinding wheel 14 to rotate, and the arc 61 of the tool tip to be sharpened is formed by grinding. In the embodiment of the present application, the rotation center 29 of the rotating disk can be called the B axis, and a second adjustment angle scale is provided on the ring base 20 to indicate the rotation angle of the spindle 13 and the grinding wheel 14.

[0053] The adjustment component 05 uses the first cross worktable 22 to adjust the position of the arc center 64 of the blade tip to be sharpened of the blade 60 to be sharpened. The first cross worktable 22 is assembled to the rotating disk 21 , and the tool holder component 03 is installed on the first cross worktable 22 .

[0054] refer to Figures 4 to 6 The first cross workbench 22 includes: a second base 23, a third carriage 24, and a fourth carriage 25; Figure 1 and Figure 2 , the upper end of the rotating disk 21 is connected to the lower side of the second base 23 near one end, the bottom of the third carriage 24 is clamped on the second base 23, and the third carriage 24 is driven by the second motor 26 through the first transmission assembly to move on the second base 23. The bottom of the fourth carriage 25 is clamped on the third carriage 24, and the fourth carriage 25 is driven by the third motor 27 through the second transmission assembly to move on the third carriage 24; the third carriage 24 and the fourth carriage 25 are arranged vertically. In the embodiment of the present application, the moving direction of the third carriage 24 on the second base 23 is called the U-axis direction, and the moving direction of the fourth carriage 25 on the third carriage 24 is called the V-axis direction.

[0055] In the embodiment of the present application, similarly to the first and second guide rails 09 and 10 respectively provided on the upper end surfaces of the first and second bearing bodies 07 and 08, the third guide rail ( Figures 4 to 6 (not shown), the bottom of the third carriage 24 is clamped on the third guide rail, and the second motor 26 drives the third carriage 24 to move on the third guide rail through the first transmission assembly.

[0056] Similarly, refer to Figure 7 The third carriage 24 is provided with a fourth guide rail 41, the bottom of the fourth carriage 25 is clamped on the fourth guide rail 41, and the third motor 27 drives the fourth carriage 25 to move on the fourth guide rail 41 through the second transmission assembly. The third guide rail and the fourth guide rail 41 are vertically arranged, and the third guide rail and the fourth guide rail 41 are parallel to the second guide rail 10 and the first guide rail 09 respectively.

[0057] refer to Figure 7The first transmission assembly includes: a first lead screw 36, a first nut seat 37, a first elastic coupling 38, and a first lead screw seat 39. One end of the first lead screw 36 is connected to the output end of the second motor 26. The first end of the first lead screw 36 close to the second motor 26 is sleeved with the first elastic coupling 38. The first lead screw seat 39 is sleeved with the first lead screw seat near the first elastic coupling 38. Bearings are arranged at both ends of the first lead screw seat 39. The first end of the first lead screw 36 away from the second motor 26 is sleeved with the first nut seat 37. The inner side of the first nut seat 37 is provided with a female thread engaged with the lead screw thread on the first lead screw 36. The upper part of the first nut seat 37 is connected to the bottom of the third carriage 24. In this way, the second motor 26 drives the first lead screw 36 to rotate on the first nut seat 37. Through the engagement of the lead screw thread and the female thread, the third carriage 24 can be driven to move on the third guide rail.

[0058] Similarly, the second transmission assembly includes: a second lead screw 40, a second nut seat, a second elastic coupling, and a second lead screw seat. Figure 7 Only the second lead screw 40 is shown, but the installation relationship between the above-mentioned components of the second transmission assembly is the same as that between the above-mentioned components of the first transmission assembly. One end of the second lead screw 40 is connected to the output end of the third motor 27. The end of the second lead screw 40 close to the third motor 27 is sleeved with a second elastic coupling. The part of the second lead screw 40 close to the second elastic coupling is sleeved with a second lead screw seat. Bearings are arranged at both ends of the second lead screw seat. The end of the second lead screw 40 away from the third motor 27 is sleeved with a second nut seat. The inner side of the second nut seat is provided with a female thread engaged with the lead screw thread on the second lead screw 40. The upper part of the second nut seat is connected to the bottom of the fourth carriage 25. In this way, the third motor 27 drives the second lead screw 40 to rotate on the second nut seat, and the fourth carriage 25 can be driven to move on the fourth guide rail 41 through the engagement of the lead screw thread and the female thread.

[0059] refer to Figure 8 The tool holder assembly 03 includes: a support frame 43 and a clamping member 44. The bottom of the support frame 43 is installed on the fourth carriage 25. The clamping member 44 is assembled on the support frame 43. The clamping member 44 clamps the blade 60 to be sharpened on the side close to the grinding wheel 14.

[0060] Specifically, a T-slot 30 is provided on the fourth carriage 25, a screw hole is opened at the bottom of the T-slot 30, the bottom of the support frame 43 is installed to the fourth carriage 25 by screws, and the screws at the bottom of the support frame 43 pass through the screw holes and are fixed by nuts.

[0061] refer to Figure 8The second base 23 has a first assembly hole 31 and a second assembly hole 33 at one end. The first assembly hole 31 is located below the second base 23. The second base 23 accommodates the upper end of the rotating disk 21 through the first assembly hole 31. The second base 23 has a second assembly hole 33 at a position corresponding to the first assembly hole 31. The bottom of the first assembly hole 31 is connected to the second assembly hole 33 through a positioning hole 32. Under the action of the positioning hole 32, the centers of the first assembly hole 31 and the second assembly hole 33 are coaxial. The upper end of the rotating disk 21 is inserted into the first assembly hole 31 and the positioning hole 32, and the rotating disk 21 drives the first cross table 22 to rotate on the ring base 20.

[0062] Furthermore, a light source 28, a protective mirror 34 and an adjustment seat 35 are installed in the second assembly hole 33. The light source 28 is located in the adjustment seat 35 and emits parallel light toward the image collector. The protective mirror 34 is located above the light source 28 and covers the upper part of the adjustment seat 35. The center of the light source 28 and the positioning hole 32 are the same.

[0063] refer to Figure 8 The image detection component 04 is installed on the tool holder component 03 through the column 18, and is used to detect the center of the rotating disk 21 and the position image of the blade 60 to be sharpened.

[0064] Furthermore, the image detection component 04 includes: an image collector, which is clamped on the verticality adjustment plate 49 through the focus adjustment plate 48, the verticality adjustment plate 49 is installed to the top of the column 18 through the verticality adjustment base 50, and the lower end of the column 18 is installed to the second drag plate 19 through the third base 59, and the focus adjustment plate 48 is controlled to move on the verticality adjustment plate 49 through the focus adjustment hand wheel 47.

[0065] Similarly, the image collector is mounted on the focus adjustment plate 48, which is clamped on the fifth guide rail (not shown in the figure) of the verticality adjustment plate 49, and the focus adjustment plate 48 is controlled to move on the fifth guide rail by the focus adjustment hand wheel 47.

[0066] The image collector specifically includes: a CCD camera 45 and an industrial microscope 46 . The industrial microscope 46 is integrated with the CCD camera 45 and is placed below the CCD camera 45 .

[0067] A plug-in 51 is installed at the top of the vertical adjustment vertical plate 49 , and the plug-in 51 can be rotatably inserted into the top groove 52 of the vertical adjustment base 50 vertical side plate.

[0068] Furthermore, a second cross workbench 53 is also provided at the top of the column 18, and the second cross workbench 53 includes: a lateral position adjustment slide 54, a longitudinal position adjustment slide 55, and a longitudinal position adjustment substrate 56. The bottom plate of the verticality adjustment base 50 is installed on the lateral position adjustment slide 54, and the bottom of the lateral position adjustment slide 54 is clamped on the longitudinal position adjustment slide 55. The lateral position adjustment slide 54 is controlled to move on the longitudinal position adjustment slide 55 by a lateral adjustment hand wheel 57; the bottom of the longitudinal position adjustment slide 55 is clamped on the longitudinal position adjustment substrate 56, and the longitudinal position adjustment slide 55 is controlled to move on the longitudinal position adjustment substrate 56 by a longitudinal adjustment hand wheel 58. The longitudinal position adjustment substrate 56 is installed to the top of the column 18, and the lateral position adjustment slide 54 and the longitudinal position adjustment slide 55 are vertically arranged.

[0069] Similarly, a sixth guide rail is provided on the longitudinal position adjustment carriage 55, and the bottom of the transverse position adjustment carriage 54 is clamped on the sixth guide rail (not shown in the figure), and the transverse position adjustment carriage 54 is controlled to move on the sixth guide rail by the transverse adjustment hand wheel 57. A seventh guide rail (not shown in the figure) is also provided on the longitudinal position adjustment base plate 56, and the bottom of the longitudinal position adjustment carriage 55 is clamped on the seventh guide rail, and the longitudinal position adjustment carriage 55 is controlled to move on the seventh guide rail by the longitudinal adjustment hand wheel 58.

[0070] refer to Fig.11 and Fig.12 In the embodiment of the present application, since the detection accuracy requirement is very high, the optical magnification of the industrial microscope is also high, resulting in a smaller image detection field of view. At the same time, because the optical distortion of the center of the field of view is the smallest, it is necessary to adjust the hand wheel horizontally and vertically to make the image detection field division center 66 coincide with the rotating disk rotation center 29 (B-axis rotation center). The function of the vertical adjustment plate 49 is to make the target surface of the CCD camera parallel to the B-axis rotation plane to eliminate the image change caused by the rotation, and at the same time make the movement trajectory of the focus adjustment plate parallel to the center of the optical path; the optical path of the telecentric parallel light source should also be adjusted to be parallel to the optical path of the image detection to eliminate the influence of the light source. The ultimate goal is to maximize the accuracy and stability of the image detection system.

[0071] refer to Figure 3 In an embodiment of the present application, a device for realizing automatic center division of grinding allowance further includes: a controller 06, wherein the input end of the controller 06 is connected to the output end of the image detection component 04, and the output end of the controller 06 is connected to the input ends of the first motor 67, the second motor 26, and the third motor 27. The controller 06 is used to control the movement of the adjustment component 05 and the image detection component 04 based on the image information output by the image detection component 04, and cooperate with the rotation movement of the rotating disk 21 on the ring base 20 to complete the grinding of the arc 61 of the tool tip to be sharpened.

[0072] refer to Fig. 9 In the embodiment of the present application, the image detection center 42 is first aligned with the rotating disk rotation center 29 (B-axis rotation center) by manually adjusting the vertical adjustment plate 49, the lateral position adjustment slide plate 54, and the longitudinal position adjustment slide plate 55. The blade tip arc 61 to be ground is ground based on the first pre-adjusted blade tip straight line 62 and the second pre-adjusted blade tip straight line 63 of the blade to be ground. Due to the wear of the grinding wheel, there will be a deviation in the vertical distance between the first pre-adjusted tool tip straight line 62 and the second pre-adjusted tool tip straight line 63 and the rotation center 29 of the rotating disk. The image detection component 04 detects the deviation in the vertical distance between the first pre-adjusted tool tip straight line 62 and the second pre-adjusted tool tip straight line 63 of the blade to be sharpened and the image detection center. The controller 06 drives the two axes (U axis and V axis) of the first cross workbench to move the corresponding distance according to the deviation obtained by the detection, so that the center 64 of the arc of the tool tip to be sharpened coincides with the image detection center, that is, the center 64 of the arc of the tool tip to be sharpened coincides with the rotation center of the B axis, and at the same time, the vertical distances between the first pre-adjusted tool tip straight line 62 and the second pre-adjusted tool tip straight line 63 of the blade to be sharpened and the center 64 of the arc of the tool tip to be sharpened are equal and equal to the radius of the arc 61 of the tool tip to be sharpened, and the B axis is rotated to grind the arc 61 of the tool tip to be sharpened, so as to ensure the size of the arc 61 of the tool tip to be sharpened, and the arc 61 of the tool tip to be sharpened is tangent to the first pre-adjusted tool tip straight line 62 and the second pre-adjusted tool tip straight line 63 and the tangent point is smooth.

[0073] Compared with the prior art, the embodiment of the present application provides a device for realizing automatic center division of grinding allowance. During the grinding process of superhard tools, the image detection component installed on the tool holder component detects the position image of the center of the rotating disk and the blade to be sharpened in real time, first finds the position of the center of the rotating disk, automatically identifies and calculates the error between the center of the rotating disk and the center of the arc of the tip of the tool to be sharpened, and aligns the center of the rotating disk with the image detection center by controlling the movement of the first cross worktable. At the same time, the vertical distance between the center of the arc of the tip of the tool to be sharpened and the two straight edges of the tip of the tool to be sharpened is equal to the radius of the arc of the tip of the tool to be sharpened, and the two straight edges are equidistantly divided about the rotation center of the rotating disk, so that the arc of the tip of the tool to be sharpened and the straight edge can be tangent and smoothly transitioned, which greatly guarantees the grinding accuracy of the tip of the tool.

[0074] Corresponding to the above-disclosed device for realizing automatic center division of grinding allowance, the embodiment of the present application further discloses a method for realizing automatic center division of grinding allowance. The following describes in detail a method for realizing automatic center division of grinding allowance disclosed in the embodiment of the present application in combination with the above-described device for realizing automatic center division of grinding allowance.

[0075] The specific steps of a method for realizing automatic center division of grinding allowance provided in an embodiment of the present application are described in detail below.

[0076] A method for realizing automatic center division of grinding allowance provided in an embodiment of the present application is applied to a device for realizing automatic center division of grinding allowance as described in any one of the above items.

[0077] refer to Fig.10 , a first base 01 is formed by a first carrier body 07 and a second carrier body 08; a blade 60 to be sharpened is ground by a grinding assembly 02, and the grinding assembly 02 is mounted on the first carrier body 07 through a first carriage 11; the blade 60 to be sharpened is clamped by a tool holder assembly 03, and the tool holder assembly 03 is mounted on the second carrier body 08 through a second carriage 19, a ring base and a rotating disk are provided on the second carriage 19, the ring base 20 is mounted on the second carriage 19, and the lower end of the rotating disk 21 can be rotatably sleeved in the middle opening of the ring base 20; the adjustment assembly 05 uses the first cross worktable 22 to adjust the position of the center 64 of the arc of the tip of the blade 60 to be sharpened, the first cross worktable 22 is assembled to the rotating disk 21, and the tool holder assembly 03 is mounted on the first cross worktable 22.

[0078] The controller 06 controls the movement of the rotating disk 21 and the adjusting assembly 05 to return the tool holder assembly 03 holding the blade 60 to be sharpened to the initial position, so that the center of the blade is driven by the rotation to enter the image detection field of view.

[0079] Specifically, in the embodiment of the present application, when the above-mentioned grinding allowance automatic centering realization device is shipped, the rotation position of the rotating disk 21 and the positions of the third carriage 24 and the fourth carriage 25 of the adjustment component 05 are all set with corresponding initial positions. The controller 06 controls the movement of the rotating disk 21 and the adjustment component 05 to return the tool holder component 03 holding the blade 60 to be sharpened to the initial position. As described above, the controller 06 controls the rotating disk 21 to rotate so that the second base 23 of the first cross workbench 22 is parallel to the second carriage 19. At this time, the rotating disk 21 rotates to the corresponding initial position. At this time, the controller 06 controls the second motor 26 and the third motor 27 to drive the third carriage 24 and the fourth carriage 25 to return to their respective corresponding initial positions. At this time, the rotating disk rotation center 29 enters the image detection field of view of the image detection component 04, and the rotating disk rotation center 29 is the blade rotation driving center.

[0080] The image detection component 04 collects a first image of the center of the blade rotation.

[0081] Specifically, the image detection component 04 is controlled by the controller 06 to collect the first image of the rotation center 29 of the rotating disk. As mentioned above, a second assembly hole 33 is opened on the second base 23 at a position corresponding to the first assembly hole 31, and a light source 28 is installed in the second assembly hole 33. At this time, the light source 28 is turned on, and the light source 28 emits parallel light toward the image collector. At this time, the image detection component 04 is aimed at the rotating disk 21 to collect the first image, and the first image will display the light spot of the parallel light emitted by the light source 28, and the center of the light spot is the rotation center 29 of the rotating disk.

[0082] The image detection component 04 detects a first adjustment parameter based on the first image.

[0083] Furthermore, the above steps specifically include: extracting the first position coordinates of the image detection center 42 from the first image respectively and the second position coordinate of the rotating disk rotation center 29 ; Using the first position coordinates and the second position coordinates The first adjustment parameter is calculated. The calculation formula of the first adjustment parameter is: ; in, is the lateral adjustment value of the first adjustment parameter, is the longitudinal adjustment value of the first adjustment parameter.

[0084] The image detection center 42 is adjusted to coincide with the blade rotation driving center based on the first adjustment parameter.

[0085] The above steps specifically include: controlling the lateral position adjustment carriage 54 to move the lateral adjustment value of the first adjustment parameter on the sixth guide rail by the lateral adjustment hand wheel 57; , and controlling the longitudinal position adjustment carriage 55 to move the longitudinal adjustment value of the first adjustment parameter on the seventh guide rail by the longitudinal adjustment hand wheel 58 In this way, the image detection center 42 can be adjusted to coincide with the blade rotation driving center.

[0086] Furthermore, after the image detection center 42 and the blade rotation driving center are adjusted to coincide, a method for realizing automatic center division of grinding allowance disclosed in an embodiment of the present application also includes: adjusting the grinding assembly 02 to align with the blade to be sharpened 60; and controlling the blade to be sharpened 60 to move relative to the grinding assembly 02 by the controller 06, and performing initial grinding on the first pre-adjusted tool tip straight line 62 and the second pre-adjusted tool tip straight line 63 of the blade to be sharpened 60.

[0087] In the embodiment of the present application, as described above, the grinding assembly 02 is mounted on the first carrier body 07 via the first carriage 11, and the bottom of the first carriage 11 is clamped on the first guide rail 09. In this way, the grinding assembly 02 can be aligned with the blade to be sharpened 60 by adjusting the position of the first carriage 11 on the first carrier body 07; further, the grinding assembly 02 can be aligned with the blade to be sharpened 60 by adjusting the first carriage 11 to move along the first guide rail 09.

[0088] Before grinding, the blade 60 to be sharpened may have uneven edges on both sides of the blade tip and may not be straight lines. Therefore, the blade tip needs to be ground into regular straight lines through the above-mentioned initial grinding, namely, the first pre-adjusted blade tip straight line 62 and the second pre-adjusted blade tip straight line 63. In the embodiment of the present application, the controller 06 is mainly used to control the movement of the rotating disk 21 and the adjustment component 05, driving the tool holder component 03 to move relative to the grinding component 02, and performing the initial grinding on the first pre-adjusted blade tip straight line 62 and the second pre-adjusted blade tip straight line 63 of the blade 60 to be sharpened.

[0089] The image detection component 04 collects the second image of the blade to be sharpened 60. In the embodiment of the present application, the controller 06 controls the image detection component 04 to directly collect the second image of the blade to be sharpened 60.

[0090] The image detection component 04 detects the second adjustment parameter based on the second image detection image.

[0091] refer to Fig.13 In the embodiment of the present application, the above steps specifically include: obtaining a set of sampling points based on the first preset tool tip straight line 62 and the second preset tool tip straight line 63 from the second image; constructing the first parameter equation group, the second parameter equation group, the third parameter equation group, and the fourth parameter equation group corresponding to the first preset tool tip straight line 62, the first target tool tip straight line 68, the second preset tool tip straight line 63, and the second target tool tip straight line 69 respectively using the position coordinates of each sampling point; solving each equation group to obtain the position coordinates of the first intersection of the first preset tool tip straight line 62 and the second preset tool tip straight line 63 and the second intersection position coordinates of the first target tool tip straight line 68 and the second target tool tip straight line 69 ; Using the coordinates of the first intersection point and the coordinates of the second intersection point Calculate the second adjustment parameter. The calculation formula of the second adjustment parameter is: ; in, is the lateral adjustment value of the second adjustment parameter, is the longitudinal adjustment value of the second adjustment parameter.

[0092] Further, the sampling point set includes: a first perpendicular foot point 70 from the image detection center 42 to the first pre-adjusted tool tip straight line 62, a second perpendicular foot point 71 from the image detection center 42 to the second pre-adjusted tool tip straight line 63, a first starting point 72 and a first end point 73 at a preset distance on both sides of the first perpendicular foot point 70 on the first pre-adjusted tool tip straight line 62, and a second starting point 74 and a second end point 75 at a preset distance on both sides of the second perpendicular foot point 71 on the second pre-adjusted tool tip straight line 63. The position coordinates corresponding to the first perpendicular foot point 70, the second perpendicular foot point 71, the first starting point 72, the first end point 73, the second starting point 74 and the second end point 75 are respectively: the first perpendicular foot point position coordinates , the coordinates of the second perpendicular point , first starting point position coordinates , first end point position coordinates , the second starting point position coordinates and the second end point position coordinates .

[0093] like Fig.13 As shown in the figure, the vertical line from the image detection center 42 to the first pre-adjusted tool tip straight line 62 and the first target tool tip straight line 68 is the first vertical line 78, and the vertical line from the image detection center 42 to the second pre-adjusted tool tip straight line 63 and the second target tool tip straight line 69 is the second vertical line 79. The intersection of the first vertical line 78 and the first pre-adjusted tool tip straight line 62 is the first vertical foot point 70, the intersection of the first vertical line 78 and the first target tool tip straight line 68 is the third vertical foot point 80, the intersection of the second vertical line 79 and the second pre-adjusted tool tip straight line 63 is the second vertical foot point 71, and the intersection of the second vertical line 79 and the second target tool tip straight line 69 is the third vertical foot point 80. The intersection of the sharp straight line 69 is the fourth perpendicular foot point 81, the third distance S1 between the image detection center 42 and the third perpendicular foot point 80 is equal to the sixth distance S2 between the image detection center 42 and the fourth perpendicular foot point 81, and the third distance S1 and the sixth distance S2 are both equal to the radius of the arc 61 of the blade tip to be sharpened, the first pre-adjusted blade tip straight line 62 and the second pre-adjusted blade tip straight line 63 are two straight lines of the blade tip to be sharpened before adjustment using the second adjustment parameters, and the first target blade tip straight line 68 and the second target blade tip straight line 69 are two straight lines of the blade tip to be sharpened after adjustment using the second adjustment parameters.

[0094] In the embodiment of the present application, based on the first starting point position coordinates , first end point position coordinates , the first perpendicular point position coordinates A first parameter equation group for the first preset tool tip straight line 68 and a second parameter equation group corresponding to the first target tool tip straight line 69 are established. The first parameter equation group is:

[0095]

[0096]

[0097] Wherein, t1 is the first parameter, X1 and Y1 are the horizontal coordinate and the vertical coordinate of the point on the first preset tool tip straight line 68, respectively, L1 is the first distance between the first starting point 72 and the first end point 73, .

[0098] The second parametric equation system is:

[0099]

[0100]

[0101] Among them, t11 is the second parameter, X2 and Y2 are the horizontal coordinate and vertical coordinate of the point on the first target tool tip straight line 69, respectively. and is the position coordinate of the third perpendicular point 80 corresponding to the third perpendicular point from the image detection center 42 to the first target tool tip straight line 69, L1 is the first distance between the first starting point 72 and the first end point 73, ;

[0102]

[0103]

[0104] Wherein, F1 is the first unit vector direction indication value. When F1 satisfies the first preset condition, F1 takes 1, and when F1 satisfies the second preset condition, F1 takes -1. The first preset condition is that the third parameter K1 is greater than 0, and the second preset condition is that the third parameter K1 is less than 0. , Lt1 is the second distance between the image detection center 42 and the first perpendicular foot point 70, , S1 is the third distance between the image detection center 42 and the third perpendicular foot point 80.

[0105] Based on the coordinates of the second starting point , the second end point position coordinates , the coordinates of the second perpendicular point A third parameter equation group of the second preset tool tip straight line 69 and a fourth parameter equation group corresponding to the second target tool tip straight line 71 are established. The third parameter equation group is:

[0106]

[0107]

[0108] Wherein, t2 is a fourth parameter, X3 and Y3 are respectively the horizontal coordinate and the vertical coordinate of the point on the second preset tool tip straight line 63, L2 is a fourth distance between the second starting point 74 and the second end point 75, .

[0109] The fourth parametric equation system is:

[0110]

[0111]

[0112] Among them, t22 is the fifth parameter, X4 and Y4 are the horizontal coordinate and vertical coordinate of the point on the second target tool tip straight line 69, respectively. and is the fourth foot point position coordinate corresponding to the fourth foot point 81 of the image detection center 42 to the second target tool tip straight line 69, L2 is the fourth distance between the second starting point 74 and the second end point 75, ;

[0113]

[0114]

[0115] Wherein, F2 is the second unit vector direction indication value. When F2 satisfies the third preset condition, F2 takes 1. When F2 satisfies the fourth preset condition, F2 takes -1. The third preset condition is that the sixth parameter K2 is greater than 0. The fourth preset condition is that the sixth parameter K2 is less than 0. , is the fifth distance between the image detection center 42 and the second perpendicular foot point 71, , S2 is the sixth distance between the image detection center 42 and the fourth perpendicular foot point 81.

[0116] A first simultaneous equation system is obtained using the first parametric equation system and the third parametric equation system, and a second simultaneous equation system is obtained using the second parametric equation system and the fourth parametric equation system.

[0117] Specifically, the first pre-adjusted tool tip straight line 62 and the second pre-adjusted tool tip straight line 63 have a first intersection 76, and the first intersection position coordinates corresponding to the first intersection 76 are As a condition, the first set of simultaneous equations is:

[0118]

[0119]

[0120] Similarly, the first target tool tip straight line 68 and the second target tool tip straight line 69 have a second intersection point 77. The second intersection point position coordinates corresponding to the second intersection point 77 are As a condition, the second set of simultaneous equations is:

[0121]

[0122]

[0123] The values ​​of the first parameter and the fourth parameter are obtained by solving the first set of simultaneous equations, and the values ​​of the second parameter and the fifth parameter are respectively obtained by solving the second set of simultaneous equations.

[0124] Substituting the value of the first parameter into the first parameter equation group, the first intersection position coordinates of the first preset tool tip straight line 62 and the second preset tool tip straight line 63 are obtained. Alternatively, the value of the fourth parameter is substituted into the third parameter equation group to obtain the first intersection position coordinates of the first preset tool tip straight line 62 and the second preset tool tip straight line 63: .

[0125] Similarly, the value of the second parameter is substituted into the second parameter equation group to obtain the second intersection position coordinates of the first target tool tip straight line 68 and the second target tool tip straight line 69: Alternatively, the value of the fifth parameter is substituted into the fourth parameter equation group to obtain the second intersection position coordinates of the first target tool tip straight line 68 and the second target tool tip straight line 69. .

[0126] Using the coordinates of the first intersection point and the coordinates of the second intersection point Calculate the second adjustment parameter. The calculation formula of the second adjustment parameter is:

[0127]

[0128]

[0129] in, is the lateral adjustment value of the second adjustment parameter, is the longitudinal adjustment value of the second adjustment parameter.

[0130] The controller 06 controls the adjustment component 05 based on the second adjustment parameter, and uses the first cross workbench 22 to adjust the arc center 64 of the tip of the blade 60 to be sharpened to coincide with the image detection center 42 .

[0131] As described above, the above steps specifically include: the controller 06 drives the second motor 26, and the third carriage 24 is driven by the second motor 26 through the first transmission assembly to move on the second base 23 according to the lateral adjustment value of the second adjustment parameter. Similarly, the controller 06 drives the third motor 27, and the fourth carriage 25 is driven by the third motor 27 through the second transmission assembly to move on the third carriage 24 according to the longitudinal adjustment value of the second adjustment parameter. Move so that the arc center 64 of the tool tip to be sharpened can be adjusted to coincide with the image detection center 42.

[0132] The blade 60 to be sharpened is controlled to rotate, and the arc 61 of the blade tip to be sharpened is sharpened. Specifically, the controller 06 controls the rotating disk 21 to drive the tool holder assembly 03 and the blade 60 to be sharpened to rotate, and the arc 61 of the blade tip to be sharpened is sharpened.

[0133] Compared with the prior art, the embodiment of the present application provides a method for realizing automatic center division of grinding allowance. During the grinding process of superhard tools, the image detection component installed on the tool holder component is used to detect the position image of the rotating disk center and the blade to be ground in real time. The position of the rotating disk center is first found, and the error between the rotating disk center and the arc center of the tool tip to be ground is automatically identified and calculated. The rotation of the rotating disk center and the image detection center are aligned by controlling the movement of the first cross worktable. At the same time, the vertical distance between the arc center of the tool tip to be ground and the two straight edges of the tool tip to be ground is equal to the radius of the arc of the tool tip to be ground, and the two straight edges are equidistantly divided about the rotation center of the rotating disk. This ensures that the arc of the tool tip to be ground and the straight edge are tangent and smoothly transitioned, which greatly ensures the grinding accuracy of the tool tip arc.

[0134] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A device for realizing automatic center division of grinding allowance, characterized in that: The device comprises: The first base comprises: a first bearing body and a second bearing body; A grinding assembly, used for grinding the blade to be ground, and installed on the first carrying body through a first carriage; A tool holder assembly, used for clamping the blade to be sharpened, is mounted on the second bearing body through a second carriage, a ring base and a rotating disk are provided on the second carriage, and the lower end of the rotating disk can be rotatably sleeved in the middle opening of the ring base; An adjustment component, using a first cross workbench to adjust the arc center of the tip of the blade to be sharpened, wherein the first cross workbench is assembled on the rotating disk, and the tool holder component is mounted on the first cross workbench; A controller is used to control the movement of the rotating disk and the adjustment assembly, return the tool holder assembly holding the blade to be sharpened to the initial position, and allow the blade to rotate and drive the center to enter the field of view of the image detection; An image detection component is used to capture a first image of the blade rotation driving center; detect a first adjustment parameter based on the first image; adjust the image detection center to coincide with the blade rotation driving center based on the first adjustment parameter; capture a second image of the blade to be sharpened; and detect a second adjustment parameter based on the second image; The controller controls the adjustment component based on the second adjustment parameter, and uses the first cross workbench to adjust the center of the arc of the blade tip to be sharpened to coincide with the image detection center; and controls the rotating disk to drive the tool holder component and the blade to be sharpened to rotate, so as to grind the arc of the blade tip to be sharpened.

2. The device for realizing automatic center division of grinding allowance according to claim 1, characterized in that: The upper end surfaces of the first bearing body and the second bearing body are respectively provided with a first guide rail and a second guide rail, the first guide rail and the second guide rail are arranged perpendicular to each other, and the bottoms of the first drag plate and the second drag plate are respectively clamped on the first guide rail and the second guide rail.

3. The device for realizing automatic center division of grinding allowance according to claim 2, characterized in that: The first cross workbench includes: a second base, a third carriage, and a fourth carriage; the upper end of the rotating disk is connected to the lower side of the second base near one end, the bottom of the third carriage is clamped on the second base, the bottom of the fourth carriage is clamped on the third carriage, and the third carriage and the fourth carriage are vertically arranged.

4. The device for realizing automatic center division of grinding allowance according to claim 3, characterized in that: The second base accommodates the upper end of the rotating disk through a first assembly hole, and a second assembly hole is opened on the second base at a position corresponding to the first assembly hole. The bottom of the first assembly hole is connected to the second assembly hole through a positioning hole. Under the action of the positioning hole, the centers of the first assembly hole and the second assembly hole are coaxial.

5. The device for realizing automatic center division of grinding allowance according to claim 4, characterized in that: The image detection component includes: an image collector, which is connected to the verticality adjustment plate through a focus adjustment plate, the verticality adjustment plate is installed to the top of the column through a verticality adjustment base, and the lower end of the column is installed to the second drag plate through a third base, and the focus adjustment plate is controlled to move on the verticality adjustment plate through a focus adjustment hand wheel.

6. The device for realizing automatic center division of grinding allowance according to claim 5, characterized in that: A light source, a protective mirror and an adjustment seat are installed in the second assembly hole. The light source is located in the adjustment seat and emits parallel light toward the image collector. The protective mirror is located above the light source and covers the upper part of the adjustment seat. The center of the light source and the positioning hole are the same.

7. The device for realizing automatic center division of grinding allowance according to claim 6, characterized in that: A second cross workbench is also provided at the top of the column, and the second cross workbench includes: a lateral position adjustment slide, a longitudinal position adjustment slide, and a longitudinal position adjustment substrate. The bottom plate of the verticality adjustment base is installed on the lateral position adjustment slide, and the bottom of the lateral position adjustment slide is clamped on the longitudinal position adjustment slide, and the lateral position adjustment slide is controlled to move on the longitudinal position adjustment slide by a lateral adjustment hand wheel; the bottom of the longitudinal position adjustment slide is clamped on the longitudinal position adjustment substrate, and the longitudinal position adjustment slide is controlled to move on the longitudinal position adjustment substrate by a longitudinal adjustment hand wheel. The longitudinal position adjustment substrate is installed on the top of the column, and the lateral position adjustment slide and the longitudinal position adjustment slide are vertically arranged.

8. The device for realizing automatic center division of grinding allowance according to claim 7, characterized in that: Detecting a first adjustment parameter based on the first image includes: Extract the first position coordinates of the image detection center from the first image respectively and the second position coordinate of the rotating disk's rotation center ; Using the first position coordinates and the second position coordinates The first adjustment parameter is calculated, and the calculation formula of the first adjustment parameter is: ； in, is the lateral adjustment value of the first adjustment parameter, is the longitudinal adjustment value of the first adjustment parameter.

9. The device for realizing automatic center division of grinding allowance according to claim 8, characterized in that: Detecting a second adjustment parameter based on the second image includes: Acquire a set of sampling points from the second image based on the first preset tool tip straight line and the second preset tool tip straight line; Using the position coordinates of each sampling point, construct the first parameter equation group, the second parameter equation group, the third parameter equation group, and the fourth parameter equation group corresponding to the first preset tool tip straight line, the first target tool tip straight line, the second preset tool tip straight line, and the second target tool tip straight line, respectively; Solve each set of equations to obtain the coordinates of the first intersection of the first preset tool tip straight line and the second preset tool tip straight line and the coordinates of the second intersection point of the first target tool tip straight line and the second target tool tip straight line ; Using the coordinates of the first intersection point and the coordinates of the second intersection point Calculate the second adjustment parameter. The calculation formula of the second adjustment parameter is: ； in, is the lateral adjustment value of the second adjustment parameter, is the longitudinal adjustment value of the second adjustment parameter.

10. A method for realizing automatic center division of grinding allowance, characterized in that: The method comprises: A first base is formed by the first carrying body and the second carrying body; The blade to be ground is ground by a grinding assembly, wherein the grinding assembly is mounted on the first carrying body through a first carriage; The blade to be sharpened is clamped by a tool holder assembly, and the tool holder assembly is installed on the second carrying body through a second carriage, and a ring base and a rotating disk are provided on the second carriage, and the lower end of the rotating disk can be rotatably sleeved in the middle opening of the ring base; The adjusting assembly uses a first cross worktable to adjust the arc center of the tip of the blade to be sharpened, wherein the first cross worktable is assembled on the rotating disk, and the tool holder assembly is mounted on the first cross worktable; The controller controls the movement of the rotating disk and the adjustment assembly to return the tool holder assembly holding the blade to be sharpened to the initial position, so that the blade rotates and drives the center into the field of view of the image detection; The image detection component collects a first image of the center of the blade rotation drive, and detects a first adjustment parameter based on the first image; Adjust the image detection center to coincide with the blade rotation driving center based on the first adjustment parameter; The image detection component collects a second image of the blade to be sharpened, and detects a second adjustment parameter based on the second image detection image; The following steps are performed by the controller: Based on the second adjustment parameter, the adjustment component is controlled to use the first cross workbench to adjust the arc center of the tip of the blade to be sharpened to coincide with the image detection center; The rotating disk is controlled to drive the tool holder assembly and the blade to be sharpened to rotate, so as to grind the arc of the blade tip to be sharpened.

Images