A tool grinding positioning device and positioning method

Abstract

This application relates to a tool grinding positioning device and method, belonging to the field of tool processing equipment. It includes a frame and a tool mounted on the frame. The tool has several grooves arranged along its circumference, and each groove contains a grinding surface to be ground. A grinding mechanism is mounted on the frame for grinding the grinding surfaces. A rotation adjustment unit is also mounted on the frame, and the tool is mounted on the rotation adjustment unit to rotate the tool, causing each grinding surface to be positioned opposite the grinding mechanism. A horizontal moving unit is also mounted on the frame, and a positioning ball is mounted on the horizontal moving unit. The horizontal moving unit can drive the positioning ball to insert into the groove and make the positioning ball contact the grinding surface. This application simplifies the positioning process, reduces tool positioning time, and improves tool positioning efficiency.

Description

Technical Field

[0001] This application relates to the field of tool processing equipment, and in particular to a tool grinding positioning device and positioning method. Background Technology

[0002] With the rapid development of the manufacturing industry, cutting tools play an important role in industrial production. In pellet mills, the pelletizing roller cutter can cut molten raw materials into pellets. As the working time of the pellet mill increases, the cutting tool will wear down, so it is necessary to sharpen the cutting tool.

[0003] When grinding cutting tools, the tools need to be positioned first. The traditional positioning method is to first install the tool on the worktable, then turn on the grinding wheel, and move the worktable to gradually bring the tool closer to the grinding wheel. When the grinding wheel begins to contact the grinding surface of the tool, the tool positioning is completed. However, the process of the grinding wheel slowly moving to the grinding surface takes a lot of time and the positioning process is complicated, resulting in low tool positioning efficiency. Summary of the Invention

[0004] To address the issues of complex tool positioning, long positioning time, and low efficiency caused by the contact positioning between the tool and the grinding wheel, this application provides a tool grinding positioning device and method.

[0005] On the one hand, the tool grinding positioning device provided in this application adopts the following technical solution:

[0006] A tool grinding positioning device includes a frame and a tool mounted on the frame. The tool has a plurality of grooves, all of which are arranged along the circumference of the tool. Each groove contains a grinding surface to be ground. The frame is equipped with a grinding mechanism for grinding the grinding surface.

[0007] The frame is provided with a rotation adjustment unit, and the cutting tool is disposed on the rotation adjustment unit. The rotation adjustment unit is used to drive the cutting tool to rotate, so that the grinding surfaces are arranged opposite to the grinding mechanism one by one. The frame is provided with a horizontal moving unit, and the horizontal moving unit is provided with a positioning ball. The horizontal moving unit can drive the positioning ball to insert into the tool groove and make the positioning ball contact the grinding surface.

[0008] By adopting the above technical solution, when grinding the cutting tool, the tool is first installed on the rotation adjustment unit. Then, the operator moves the positioning ball through the horizontal moving unit and inserts it into the tool groove. The tool is then rotated so that the positioning ball contacts the grinding surface. At this point, the grinding surface of the tool groove at the top of the tool is positioned. The grinding mechanism then grinds the grinding surface. After grinding, the positioning ball is slid out of the tool groove through the horizontal moving unit. The tool is then rotated by the rotation adjustment unit at a certain angle. The horizontal moving unit inserts the positioning ball into the new tool groove. The tool is then rotated so that the positioning ball contacts the grinding surface, positioning the new tool groove at the top of the tool. This process is repeated continuously to complete the positioning and grinding of the grinding surface on the entire tool. Compared with the traditional tool positioning method, this solution only requires sliding the positioning ball into the tool groove and rotating the tool so that the positioning ball contacts the grinding surface to complete the tool positioning. This simplifies the positioning process, reduces tool positioning time, and improves tool positioning efficiency.

[0009] In one specific implementation, the rotation adjustment unit includes a servo motor, a push rod, and a support shaft. The support shaft passes through the cutter and is fixedly connected. The output shaft of the servo motor is detachably connected to the support shaft via a coupling. The push rod is threaded to the frame and has a pointed end facing the support shaft. The axes of the support shaft, the output shaft of the servo motor, and the push rod are collinear. The pointed end can be inserted into the axial position of the end wall of the support shaft and is rotatably configured with the support shaft.

[0010] By adopting the above technical solution, when installing the tool, the support shaft is first passed through the tool, and then one end of the support shaft is coaxially connected to the output shaft of the servo motor through a coupling. Then, the push rod is rotated, and the tip on the push rod is inserted into the other end of the support shaft, so that the servo motor can drive the tool to rotate through the support shaft, thereby improving the convenience of tool installation.

[0011] In one specific implementation, the horizontal moving unit includes a slide rail and a slider. The slide rail is arranged on the frame along a direction parallel to the axis of the support shaft. The slider is slidably arranged on the slide rail. An adjusting screw is fixedly provided on the slider. A mounting plate is provided on the adjusting screw. The adjusting screw passes through the mounting plate and is slidably arranged. A positioning ball is arranged on the mounting plate through a connector. Two sets of fixing nuts for clamping and fixing the mounting plate are threaded on the adjusting screw. The two sets of fixing nuts are located on both sides of the mounting plate.

[0012] By adopting the above technical solution, after the tool is installed, the operator pushes the slider, the slider slides along the slide rail, and drives the positioning ball to insert into the tool groove. By tightening the fixing nut, the installation position of the mounting plate on the adjusting screw can be adjusted, thereby adjusting the height of the positioning ball, so that the positioning ball can position tools of different specifications and improve the applicability of the positioning ball positioning.

[0013] In one specific implementation, the connector includes a mounting block comprising a wedge-shaped segment and a rectangular segment. The wedge-shaped segment is insertable into the tool groove. The mounting plate has a rotating through groove on the side near the tool. The rectangular segment is inserted into the rotating through groove and rotates with the mounting plate. The mounting plate has a fixing adjustment member for fixing the mounting block at different rotational positions. The positioning ball is fixedly disposed on the side of the wedge-shaped segment facing the grinding surface.

[0014] By adopting the above technical solution, when positioning grinding surfaces with different tilt angles, the operator drives the mounting block to rotate in the rotating slot, and then fixes the tilt state of the mounting block by the fixing adjustment component, so that the positioning ball can position grinding surfaces with different tilt angles, thereby improving the applicability of the positioning ball positioning.

[0015] In one specific implementation, the fixing adjustment component includes two sets of fixing plates disposed on the mounting plate. The two sets of fixing plates are respectively disposed at two openings opposite to each other in the rotating through slot. Each set of fixing plates is threaded with fixing bolts, and the two sets of fixing bolts can abut and fix the mounting block.

[0016] By adopting the above technical solution, when positioning the tilt angle of the mounting block, first install two sets of fixing plates on both sides of the mounting plate, and then tighten the fixing bolts. The two sets of fixing bolts are pressed and fixed from both sides of the mounting block, thereby achieving the fixation of the tilt state of the mounting block.

[0017] In one specific implementation, the wedge-shaped segment is provided with a pre-tightening groove extending to the side of the wedge-shaped segment away from the rectangular segment. A sliding groove is provided on the sidewall of the pre-tightening groove, parallel to the top wall of the wedge-shaped segment and inclined to the bottom wall of the pre-tightening groove. A fastening rod is provided on the wedge-shaped segment, located within the pre-tightening groove. The fastening rod has a rotating shaft for sliding within the sliding groove. A driving member is provided on the wedge-shaped segment, positioned between the rotating shaft and the rectangular segment. A first guiding surface is provided on the sidewall of the pre-tightening groove. One end of the fastening rod can slide against the first guiding surface, causing the rotating shaft to rotate and slide along the sliding groove away from the first guiding surface. The driving member drives the fastening rod to slide along the first guiding surface, causing the fastening rod to abut against the sidewall of the groove opposite the grinding surface.

[0018] By adopting the above technical solution, when the mounting block drives the positioning ball to be inserted into the tool groove, the operator drives one end of the fastening rod to slide along the first guide surface through the driving component. At this time, the rotating shaft slides towards the tool groove, and the other end of the fastening rod slides out of the pre-tightening groove and rotates towards the side wall opposite to the grinding surface in the tool groove. Then, the driving component drives the fastening rod to abut against the side wall opposite to the grinding surface in the tool groove, while the positioning ball abuts against the grinding surface. This effectively prevents the grinding mechanism from rotating the tool during grinding and improves the stability of tool grinding.

[0019] In one specific implementation, the driving component includes a driving screw and a driving block. The driving screw is vertically rotatably mounted on the bottom wall of the pre-tightening groove. The driving block has a round shaft portion. The fastening rod has a guide groove along its own length direction. The round shaft portion is inserted into the guide groove and slidably mounted. The driving screw passes through the driving block and is threadedly connected.

[0020] By adopting the above technical solution, when driving the fastening rod, the operator rotates the drive screw, which drives the drive block to move downward. At the same time, the drive block slides along the fastening rod through the cooperation between the round shaft and the guide groove, and pushes one end of the fastening rod to slide along the first guide surface. At this time, the rotating shaft slides along the strip hole, and the other end of the fastening rod slides towards the bottom of the groove while rotating towards the side of the groove opposite to the grinding surface, thereby driving the fastening rod. At the same time, stopping the rotation of the drive screw can fix the fastening rod, thereby improving the convenience of driving and fixing the fastening rod.

[0021] In one specific implementation, the drive block is provided with a telescopic spring, which is connected to the fastening rod and is used to push the fastening rod to abut against the first guide surface.

[0022] By adopting the above technical solution, when the fastening rod moves, the telescopic spring pushes the fastening rod to abut against the first guide surface. At the same time, when the fastening rod resets, the telescopic spring can push the fastening rod back to its original position, thereby improving the reliability of the fastening rod's operation.

[0023] In one specific implementation, a second guide surface is provided on the side wall of the pre-tightening groove, the fastening rod can slide along the first guide surface onto the second guide surface, and one end of the fastening rod can slide along the second guide surface, so that the fastening rod rotates around the rotation axis.

[0024] By adopting the above technical solution, as the fastening rod rotates, the fastening rod is horizontal. Then, one end of the fastening rod slides from the first guide surface onto the second guide surface. The fastening rod rotates around the rotation axis and abuts against the side wall opposite to the tool and the grinding surface. The stability of the fastening rod during rotation is improved by guiding the fastening rod through the second guide surface.

[0025] On the other hand, the tool grinding positioning device provided in this application adopts the following technical solution:

[0026] A tool grinding positioning method, using the aforementioned tool grinding positioning device, further includes the following steps:

[0027] S1. Installation: Install the tool onto the rotation adjustment unit;

[0028] S2. Positioning: The sliding horizontal moving unit inserts the positioning groove into the tool groove, and then rotates the tool so that the positioning ball contacts the grinding surface.

[0029] S3. Grinding: The grinding surface of a tool groove is ground by a grinding mechanism, and then the positioning ball slides out of the tool groove.

[0030] S4. Conversion: Rotate the tool by a certain angle through the rotation adjustment unit to align the new tool groove with the positioning ball;

[0031] S5. Repeat steps S2-S4;

[0032] S6. Unload.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. When positioning a tool during grinding, the tool is first installed on the rotation adjustment unit. Then, the operator moves the positioning ball through the horizontal moving unit and inserts it into the tool groove. The tool is then rotated so that the positioning ball contacts the grinding surface. At this point, the grinding surface of the tool groove at the top of the tool is positioned. The grinding mechanism then grinds the grinding surface. After grinding, the tool is rotated by the rotation adjustment unit at a certain angle, and the positioning ball is inserted into a new tool groove to position the grinding surface of the new tool groove at the top of the tool. The above operation is repeated continuously to complete the grinding of the entire tool grinding surface. This solution only requires sliding the positioning ball into the tool groove and rotating the tool so that the positioning ball contacts the grinding surface to complete the tool positioning, thereby simplifying the positioning process, reducing tool positioning time, and improving tool positioning efficiency.

[0035] 2. By tightening the fixing bolts, the mounting position of the mounting plate on the adjusting screw can be adjusted, thereby adjusting the height of the positioning ball. By rotating the mounting block, the tilt angle of the positioning ball can be adjusted. Then, the mounting block is fixed by the fixing bolts, so that the positioning ball can position tools of different specifications, improving the applicability of the positioning ball positioning. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of a tool grinding positioning device according to Embodiment 1 of this application.

[0037] Figure 2 yes Figure 1 Enlarged view of section A.

[0038] Figure 3 This is a schematic diagram illustrating the structure of the rotation adjustment unit.

[0039] Figure 4 yes Figure 3 Enlarged view of section B in the middle.

[0040] Figure 5 yes Figure 3 Enlarged view of section C.

[0041] Figure 6 This is a schematic diagram used to demonstrate the structure of a limit spring.

[0042] Figure 7 yes Figure 3 Enlarged view of section D in the middle.

[0043] Figure 8 This is a schematic diagram of the structure of a tool grinding positioning device according to Embodiment 2 of this application.

[0044] Figure 9 yes Figure 8 Enlarged view of section E in the middle.

[0045] Figure 10This is a schematic diagram used to illustrate the structure of the sliding groove.

[0046] Figure 11 It is along Figure 10 A cross-sectional view of the FF line.

[0047] Figure 12 This is a structural diagram used to illustrate the circular shaft section.

[0048] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Rotation adjustment unit; 21. Servo motor; 22. Push rod; 23. Support shaft; 24. Adjustment seat; 25. Tip; 26. Coupling; 27. Slot; 3. Grinding mechanism; 31. Three-axis moving frame; 32. Grinding wheel; 4. Cutting tool; 41. Tool groove; 42. Grinding surface; 5. Horizontal moving unit; 51. Slide rail; 52. Slider; 53. Baffle; 54. Limiter; 541. Support box; 542. Sliding rod; 543. Rotating wheel; 544. Limit spring; 55. Adjusting screw; 561. Mounting plate; 5 62. Fixing nut; 57. Connector; 571. Mounting block; 5711. Wedge-shaped section; 5712. Rectangular section; 572. Rotating through groove; 58. Fixing adjustment component; 581. Fixing plate; 582. Fixing bolt; 6. Positioning ball; 71. Pre-tightening groove; 72. Fastening rod; 73. First guide surface; 74. Second guide surface; 75. Sliding groove; 76. Rotating shaft; 77. Driving component; 771. Driving screw; 772. Driving block; 773. Driving platform; 774. Strip hole; 775. Guide groove; 776. Round shaft part; 78. Telescopic spring. Detailed Implementation

[0049] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0050] On the one hand, this application discloses a tool grinding positioning device.

[0051] Example 1

[0052] Reference Figure 1 , Figure 2A tool grinding and positioning device includes a frame 1, on which a rotation adjustment unit 2, a grinding mechanism 3, a tool 4, and a horizontal moving unit 5 are provided. The grinding mechanism 3 includes a three-axis moving frame 31 and a grinding wheel 32 driven by a motor. The tool 4 is detachably mounted on the rotation adjustment unit 2. In this embodiment, the tool 4 is a pelletizing roller. The tool 4 has an even number of grooves 41. In this embodiment, the number of grooves 41 is twelve. The twelve grooves 41 are arranged along the circumference of the tool 4, and each groove 41 extends along the axial direction of the tool 4. Each cutting surface of the groove 41 is set as a grinding surface 42. The horizontal moving unit 5 is provided with a positioning ball 6. The horizontal moving unit 5 slides along the axial direction of the tool 4 in a horizontal plane. The horizontal moving unit 5 can drive the positioning ball 6 to slide into or out of the groove 41. The positioning ball 6 is arranged opposite to the grinding surface 42.

[0053] When grinding the cutting tool 4, the tool 4 is first installed on the rotation adjustment unit 2. Then, the operator moves the positioning ball 6 through the horizontal movement unit 5 and inserts it into the tool groove 41. The tool 4 is then rotated so that the positioning ball 6 contacts the grinding surface 42. At this point, the grinding surface 42 of the tool groove 41 at the top of the tool 4 is positioned. The grinding mechanism 3 then grinds the grinding surface 42. After grinding, the positioning ball 6 is slid out of the tool groove 41 through the horizontal movement unit 5. Then, the tool 4 is rotated at a certain angle through the rotation adjustment unit 2 and then moved horizontally... The moving unit 5 inserts the positioning ball 6 into the new tool groove 41, and then rotates the tool 4 so that the positioning ball 6 abuts against the grinding surface 42, thereby positioning the new tool groove 41 on the top of the tool 4. The above process is repeated continuously to complete the positioning and grinding of the grinding surface 42 on the entire tool 4. Compared with the traditional tool 4 positioning method, this solution only requires sliding the positioning ball 6 into the tool groove 41 and rotating the tool 4 so that the positioning ball 6 abuts against the grinding surface 42, thereby completing the positioning of the tool 4. This simplifies the positioning process, reduces the positioning time of the tool 4, and improves the positioning efficiency of the tool 4.

[0054] Reference Figure 3 , Figure 4In this embodiment, the rotation adjustment unit 2 includes a servo motor 21, a push rod 22, and a support shaft 23. The servo motor 21 is fixedly mounted on the frame 1. An adjustment seat 24 is fixedly mounted on the frame 1 at a position opposite to the servo motor 21. A space is left between the adjustment seat 24 and the output shaft of the servo motor 21 for the installation of the tool 4. The push rod 22 passes through the adjustment seat 24 and is threadedly connected to the adjustment seat 24. The push rod 22 is coaxially arranged with the output shaft of the servo motor 21. Both the push rod 22 and the output shaft of the servo motor 21 have pointed tips 25 on their opposite ends. The support shaft 23 passes through the tool. The support shaft 23 is fixed to the cutter 4, so that the support shaft 23 can drive the cutter 4 to rotate. The output shaft of the servo motor 21 is detachably connected to one end of the support shaft 23 through the coupling 26. Both ends of the support shaft 23 are provided with slots 27 for the tip 25 to be inserted. The axis of the slot 27 is collinear with the axis of the support shaft 23. When the tip 25 is inserted into the slot 27, the support shaft 23 is rotatably connected to the push rod 22. When the support shaft 23 is installed between the servo motor 21 and the adjusting seat 24, the axes of the support shaft 23, the output shaft of the servo motor 21, and the push rod 22 are collinear.

[0055] When installing the tool 4, first pass the support shaft 23 through the tool 4, then connect one end of the support shaft 23 coaxially with the output shaft of the servo motor 21 through the coupling 26, and then rotate the push rod 22. The tip 25 on the push rod 22 is inserted into the other end of the support shaft 23, so that the servo motor 21 can drive the tool 4 to rotate through the support shaft 23, thereby improving the ease of installation of the tool 4.

[0056] Reference Figure 3 In this embodiment, the horizontal moving unit 5 includes a slide rail 51 and a slider 52. The slide rail 51 is fixedly mounted on the frame 1 along the axial direction of the top rod 22. The frame 1 is fixedly provided with baffles 53 at both ends of the slide rail 51. The slider 52 is slidably mounted on the slide rail 51. The baffles 53 restrict the sliding limit position of the slider 52, effectively preventing the slider 52 from separating from the slide rail 51.

[0057] Reference Figure 5 , Figure 6 A limiter 54 is provided on the frame 1. A distance of one slider 52 is left between the limiter 54 and the baffle 53 near the tool 4. The limiter 54 includes a support box 541, a sliding rod 542, and a rotating wheel 543. The support box 541 is fixedly installed on the frame 1 and located below the slide rail 51. The support box 541 has a cavity. The sliding rod 542 is inserted into the cavity and slidably connected to the support box 541. A limit spring 544 is provided between the sliding rod 542 and the bottom wall of the cavity of the support box 541. One end of the limit spring 544 is fixedly connected to the sliding rod 542, and the other end is fixedly connected to the support box 541. The rotating wheel 543 is rotatably installed on the top of the sliding rod 542 through a shaft. The upper part of the rotating wheel 543 is located on the sliding track of the slider 52.

[0058] When slider 52 slides on slide rail 51, slider 52 presses against rotating wheel 543, causing sliding rod 542 to move downward and limiting spring 544 to contract. When positioning ball 6 slides to the designated position in tool groove 41, slider 52 moves to one end of slide rail 51, slider 52 disengages from rotating wheel 543, limiting spring 544 pushes sliding rod 542 upward, and rotating wheel 543 limits slider 52, effectively preventing the sliding of positioning ball 6 from affecting the positioning of tool 4.

[0059] Reference Figure 2 , Figure 3 and Figure 7 An adjusting screw 55 is fixedly provided on the slider 52. The adjusting screw 55 is set in the vertical direction. A mounting plate 561 is provided on the adjusting screw 55. The adjusting screw 55 passes through the mounting plate 561 and is slidably connected to the mounting plate 561. Fixing nuts 562 are provided on both the upper and lower sides of the mounting plate 561. The fixing nuts 562 are screwed onto the adjusting screw 55. The fixing nuts 562 can clamp and fix the mounting plate 561. The positioning ball 6 is set on the mounting plate 561 through the connector 57.

[0060] Reference Figure 3 , Figure 7 In this embodiment, the connector 57 includes a mounting block 571, which includes a wedge-shaped segment 5711 and a rectangular segment 5712. The mounting plate 561 has a rotating groove 572 on one end relative to the tool 4. The rotating groove 572 extends through the top and bottom walls of the mounting plate 561. The rectangular segment 5712 of the mounting block 571 is inserted into the rotating groove 572 and is rotatably connected to the mounting block 571 via a rotating shaft. The thickness of the rectangular segment 5712 in the vertical direction is less than the depth of the rotating groove 572 in the vertical direction, so the mounting block 571 can rotate within the rotating groove 572. The mounting plate 561 is provided with a fixing adjustment member 58, which is used to fix the mounting block 571. The positioning ball 6 is located on the side of the wedge-shaped segment 5711 facing the grinding surface 42.

[0061] Reference Figure 3 , Figure 7 In this embodiment, the fixing adjustment component 58 includes two sets of fixing plates 581, with one fixing plate 581 in each set. The two fixing plates 581 are respectively set on the top and bottom walls of the mounting plate 561. Each fixing plate 581 is horizontally placed on the rotating through groove 572. At this time, the rotating shaft is located between the fixing plate 581 and the adjusting screw 55. Both ends of the fixing plate 581 are connected to the mounting plate 561 by bolts. Each fixing plate 581 is provided with a fixing bolt 582. The fixing bolt 582 passes through the fixing plate 581 toward the rectangular section 5712 of the mounting block 571 and is threadedly connected to the fixing plate 581. The two fixing bolts 582 can abut and fix the rectangular section 5712.

[0062] When positioning the cutting tool 4, the operator pushes the slider 52 to slide on the slide rail 51. At this time, the slider 52, through the adjusting screw 55, mounting plate 561, and mounting block 571, drives the positioning ball 6 to insert into the tool groove 41. The wedge-shaped section 5711 of the mounting block 571 is set into a wedge shape to facilitate the insertion of the positioning ball 6 into the tool groove 41. At this time, the positioning ball 6 faces the grinding surface 42. When positioning cutting tools 4 of different specifications, the operator adjusts the position of the mounting plate 561 on the adjusting screw 55 by tightening the fixing nut 562, thereby adjusting the position of the positioning ball 6 to adapt to the different positions of the tool groove 41 on the cutting tool 4. By rotating the two fixing bolts 582, the lengths of the two fixing bolts 582 extending into the rotating through groove 572 are different, thereby adjusting the different inclination angles of the positioning ball 6 with the horizontal plane to adapt to the different inclination angles of the grinding surface 42 of the cutting tool 4. Thus, the positioning ball 6 can position cutting tools 4 of different specifications, improving the applicability of the positioning ball 6.

[0063] The implementation principle of Example 1 is as follows: When grinding the tool 4, first, the support shaft 23 is passed through the tool 4, and then one end of the support shaft 23 is connected to the output shaft of the servo motor 21 through the coupling 26. The push rod 22 is rotated, and the tip 25 on the push rod 22 is inserted into the slot 27 of the support shaft 23 to complete the installation of the tool 4. Then, the operator pushes the slider 52 to drive the positioning ball 6 to be inserted into the tool groove 41. Then, the tool 4 is rotated so that the positioning ball 6 abuts against the grinding surface 42. At this time, the tool 4 is positioned. Then, the grinding wheel 32 is moved to the grinding surface 42 in the tool groove 41 at the top of the tool 4 by the three-axis moving frame 31 for grinding. After grinding, the positioning ball 6 is slid out of the tool groove 41 by pulling the slider 52. Then, the servo motor 21 drives the tool 4 to rotate at a certain angle. Then, the slider 52 is pushed again to insert the positioning ball 6 into the new tool groove 41. Then, the tool 4 is rotated so that the positioning ball 6 contacts the grinding surface 42, positioning the new tool groove 41 at the top of the tool 4. The three-axis moving frame 31 drives the grinding wheel 32 to move to the grinding surface 42 in the new tool groove 41 at the top of the tool 4 for grinding. The above process is repeated continuously to complete the positioning and grinding of the grinding surface 42 on the entire tool 4, thereby simplifying the positioning process, reducing the positioning time of the tool 4, and improving the positioning efficiency of the tool 4.

[0064] Example 2

[0065] Reference Figure 8 , Figure 9 The difference between this embodiment and embodiment 1 is that a pre-tightening groove 71 is provided on the top wall of the wedge segment 5711. The pre-tightening groove 71 extends toward the bottom wall of the wedge segment 5711 and penetrates to the side of the wedge segment 5711 away from the rectangular segment 5712.

[0066] Reference Figure 10 , Figure 11 The pre-tightening groove 71 has a first guide surface 73 and a second guide surface 74 on the side wall near the rectangular section 5712. The first guide surface 73 is located above the second guide surface 74. Sliding grooves 75 are provided on the opposite side walls of the pre-tightening groove 71. The sliding grooves 75 are set along the direction parallel to the top wall of the wedge-shaped section 5711 and are inclined to the horizontal plane. A fastening rod 72 is provided on the wedge-shaped section 5711. The fastening rod 72 is set in the pre-tightening groove 71. A rotating shaft 76 is provided on the fastening rod 72. The rotating shaft 76 corresponds one-to-one with the sliding groove 75. The rotating shaft 76 is inserted into the sliding groove 75 and slidably connected. Initially, the fastening rod 72 is set along the direction parallel to the top wall of the wedge-shaped section 5711. One end of the fastening rod 72 contacts the first guide surface 73, and the other end extends to the lateral opening of the pre-tightening groove 71. A drive member 77 is provided on the wedge-shaped section 5711. The drive member 77 is located between the rotating shaft 76 and the rectangular section 5712. The drive member 77 is used to drive the fastening rod 72 to slide out of the pre-tightening groove 71 and rotate, so that the fastening rod 72 abuts against the side wall of the grinding surface 42 of the tool groove 41.

[0067] Reference Figure 10 , Figure 11 In this embodiment, the driving component 77 includes a driving screw 771 and a driving block 772. A driving platform 773 is fixedly provided on the top wall of the wedge-shaped segment 5711. The driving screw 771 passes through the driving platform 773 and is inserted into the bottom wall of the pre-tightening groove 71. The driving screw 771 is rotatably connected to the driving platform 773 and the bottom wall of the pre-tightening groove 71. The fastening rod 72 has a strip hole 774 at one end near the first guide surface 73. The strip hole 774 is arranged along the length direction of the fastening rod 72. Guide grooves 775 are provided on the opposite side walls of the strip hole 774. The guide grooves 775 are arranged along the length direction of the strip hole 774. The driving block 772 is inserted into the strip hole 774 and slides along the strip hole 774.

[0068] Reference Figure 12 The drive block 772 is provided with a round shaft 776, which corresponds one-to-one with the guide groove 775. The round shaft 776 is inserted into the guide groove 775 and is slidably connected with the guide groove 775. The drive screw 771 passes through the drive block 772 and is threadedly connected.

[0069] Reference Figure 10 , Figure 11The drive block 772 is equipped with a telescopic spring 78. One end of the telescopic spring 78 is fixedly connected to the drive block 772, and the other end is fixedly connected to the side wall of the fastening rod 72 near the first guide surface 73. Initially, the telescopic spring 78 applies a pushing force to the fastening rod 72 toward the first guide surface 73. The second guide surface 74 is an arc surface. When the drive block 772 pushes the fastening rod 72 to a horizontal position, the rotating shaft 76 slides to the end of the sliding groove 75. At this time, the arc center of the second guide surface 74 is collinear with the axis of the rotating shaft 76.

[0070] The implementation principle of Example 2 is as follows: When the mounting block 571 drives the positioning ball 6 to be inserted into the tool groove 41, the operator rotates the drive screw 771. The drive screw 771 drives the drive block 772 to move downward. At the same time, the drive block 772 slides along the fastening rod 72 through the cooperation of the round shaft part 776 and the guide groove 775, and pushes one end of the fastening rod 72 to slide along the first guide surface 73. At this time, the rotating shaft 76 slides along the sliding groove 75, and the other end of the fastening rod 72 slides towards the bottom of the tool groove 41 while moving towards the tool groove 41. The fastening rod 72 rotates relative to the grinding surface 42. When the fastening rod 72 rotates to the horizontal position, the end of the fastening rod 72 slides from the first guide surface 73 onto the second guide surface 74. The rotating shaft 76 slides to the end of the sliding groove 75. Then, as the driving block 772 continues to drive, the fastening rod 72 only rotates. The fastening rod 72 abuts against the side of the tool groove 41 opposite to the grinding surface 42. At the same time, the positioning ball 6 abuts against the grinding surface 42. This can effectively prevent the rotation of the tool 4 when the grinding mechanism 3 grinds the tool 4, and improve the stability of the tool 4 grinding.

[0071] During the movement of the fastening rod 72, the fastening rod 72 contacts the first guide surface 73 or the second guide surface 74 under the push of the telescopic spring 78, which improves the stability and positional accuracy of the fastening rod 72 during the movement. At the same time, when the fastening rod 72 returns to its original position, it can move back into the pre-tightening groove 71 under the push of the telescopic spring 78, which improves the reliability of the fastening rod 72 in repeated operation.

[0072] On the other hand, this application also discloses a tool grinding positioning method.

[0073] A tool grinding positioning method, using the above-mentioned tool grinding positioning device, further includes the following steps:

[0074] S1. Installation: Install the tool 4 onto the rotation adjustment unit 2;

[0075] S2. Positioning: The sliding horizontal moving unit 5 inserts the positioning groove into the tool groove 41, and then rotates the tool 4 so that the positioning ball 6 abuts against the grinding surface 42.

[0076] S3, Grinding: The grinding mechanism 3 grinds the grinding surface 42 of a tool groove 41, and then the positioning ball 6 slides out of the tool groove 41.

[0077] S4. Conversion: Rotate the tool 4 by rotating the adjustment unit 2 to a certain angle and align the new tool groove 41 with the positioning ball 6.

[0078] S5. Repeat steps S2-S4;

[0079] S6. Unload.

[0080] In step S1, the support shaft 23 is inserted into the tool 4, and then the support shaft 23 is placed between the servo motor 21 and the push rod 22. One end of the support shaft 23 is connected to the output shaft of the servo motor 21 through the coupling 26. The push rod 22 is rotated and moves toward the support shaft 23, so that the tip 25 is inserted into the slot 27 on the support rod, thus completing the installation of the tool 4.

[0081] In step S2, when the operator rotates the tool 4 until it can no longer be rotated, it can be determined that the positioning ball 6 is in contact with the grinding surface 42.

[0082] In step S3, the three-axis moving frame 31 then drives the grinding wheel 32 to the top of the tool 4 to grind the grinding surface 42 on the top of the tool 4. During grinding, the grinding wheel 32 is tilted at an angle of 12° to the vertical direction.

[0083] In step S4, the angle at which the servo motor 21 drives the tool 4 to rotate is determined by the number of tool grooves 41 on the tool 4.

[0084] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tool grinding positioning device, comprising a frame (1) and a tool (4) disposed on the frame (1), wherein the tool (4) is provided with a plurality of tool grooves (41), the plurality of tool grooves (41) are all arranged along the circumference of the tool (4), and each tool groove (41) is provided with a grinding surface (42) to be ground, characterized in that: The frame (1) is provided with a grinding mechanism (3), which is used to grind the grinding surface (42); The frame (1) is provided with a rotation adjustment unit (2), and the cutting tool (4) is disposed on the rotation adjustment unit (2). The rotation adjustment unit (2) is used to drive the cutting tool (4) to rotate, so that the grinding surface (42) is arranged opposite to the grinding mechanism (3) one by one. The frame (1) is provided with a horizontal moving unit (5), and the horizontal moving unit (5) is provided with a positioning ball (6). The horizontal moving unit (5) can drive the positioning ball (6) to insert into the tool groove (41) and make the positioning ball (6) contact the grinding surface (42). The rotation adjustment unit (2) includes a servo motor (21), a push rod (22), and a support shaft (23). The support shaft (23) passes through the cutter (4) and is fixedly connected. The output shaft of the servo motor (21) and the support shaft (23) are detachably connected through a coupling (26). The push rod (22) is threaded to the frame (1) and has a tip (25) at one end facing the support shaft (23). The axes of the support shaft (23), the output shaft of the servo motor (21), and the push rod (22) are collinear. The tip (25) can be inserted into the axial position of the end wall of the support shaft (23) and rotate with the support shaft (23). The horizontal moving unit (5) includes a slide rail (51) and a slider (52). The slide rail (51) is arranged on the frame (1) in a direction parallel to the axis of the support shaft (23). The slider (52) is slidably arranged on the slide rail (51). An adjusting screw (55) is fixedly provided on the slider (52). An mounting plate (561) is provided on the adjusting screw (55). The adjusting screw (55) passes through the mounting plate (561) and is slidably arranged. The positioning ball (6) is arranged on the mounting plate (561) through a connector (57). Two sets of fixing nuts (562) for clamping and fixing the mounting plate (561) are threaded on the adjusting screw (55). The two sets of fixing nuts (562) are located on both sides of the mounting plate (561). The connector (57) includes a mounting block (571), which includes a wedge-shaped segment (5711) and a rectangular segment (5712). The wedge-shaped segment (5711) can be inserted into the tool groove (41). The mounting plate (561) has a rotating through groove (572) on the side near the tool (4). The rectangular segment (5712) is inserted into the rotating through groove (572) and rotates with the mounting plate (561). The mounting plate (561) is provided with a fixing adjustment member (58) for fixing the mounting block (571) in different rotation positions. The positioning ball (6) is fixedly disposed on the side of the wedge-shaped segment (5711) facing the grinding surface (42). The fixing adjustment component (58) includes two sets of fixing plates (581) disposed on the mounting plate (561). The two sets of fixing plates (581) are respectively disposed at two openings opposite to each other in the rotating through groove (572). Each set of fixing plates (581) is threaded with fixing bolts (582). The two sets of fixing bolts (582) can abut and fix the mounting block (571). The wedge-shaped segment (5711) is provided with a pre-tightening groove (71), which extends to the side of the wedge-shaped segment (5711) away from the rectangular segment (5712). A sliding groove (75) is provided on the side wall of the pre-tightening groove (71), which is parallel to the top wall of the wedge-shaped segment (5711) and inclined to the bottom wall of the pre-tightening groove (71). A fastening rod (72) is provided on the wedge-shaped segment (5711), located within the pre-tightening groove (71). The fastening rod (72) is provided with a rotating shaft (76) for sliding within the sliding groove (75). The wedge-shaped segment (5711) is provided with... A driving member (77) is provided, which is disposed between the rotating shaft (76) and the rectangular segment (5712). A first guide surface (73) is provided on the side wall of the pre-tightening groove (71). One end of the fastening rod (72) can slide against the first guide surface (73), so that the rotating shaft (76) rotates and slides along the sliding groove (75) away from the first guide surface (73). The driving member (77) is used to drive the fastening rod (72) to slide along the first guide surface (73), so that the fastening rod (72) abuts against the side wall of the tool groove (41) opposite to the grinding surface (42).

2. The tool grinding positioning device according to claim 1, characterized in that: The driving component (77) includes a driving screw (771) and a driving block (772). The driving screw (771) is vertically rotatably mounted on the bottom wall of the pre-tightening groove (71). The driving block (772) is provided with a round shaft portion (776). The fastening rod (72) is provided with a guide groove (775) along its own length direction. The round shaft portion (776) is inserted into the guide groove (775) and slidably mounted. The driving screw (771) passes through the driving block (772) and is threadedly connected.

3. The tool grinding positioning device according to claim 2, characterized in that: The drive block (772) is provided with a telescopic spring (78), which is connected to the fastening rod (72) and is used to push the fastening rod (72) to abut against the first guide surface (73).

4. The tool grinding positioning device according to claim 1, characterized in that: The pre-tightening groove (71) has a second guide surface (74) on its side wall. The fastening rod (72) can slide along the first guide surface (73) onto the second guide surface (74). One end of the fastening rod (72) can slide along the second guide surface (74), so that the fastening rod (72) can rotate around the rotating shaft (76).

5. A tool grinding positioning method, characterized in that: The tool grinding positioning device according to any one of claims 1-4 further includes the following steps: S1. Installation: Install the cutting tool (4) on the rotation adjustment unit (2); S2. Positioning: The sliding horizontal moving unit (5) inserts the positioning groove into the tool groove (41), and then rotates the tool (4) so ​​that the positioning ball (6) abuts against the grinding surface (42); S3. Grinding: The grinding surface (42) of a tool groove (41) is ground by the grinding mechanism (3), and then the positioning ball (6) slides out of the tool groove (41). S4. Conversion: Rotate the tool (4) by a certain angle through the rotating adjustment unit (2) and align the new tool groove (41) with the positioning ball (6); S5. Repeat steps S2-S4; S6. Unload.

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