A cutting tool grinding device with automatic calibration

Abstract

The present invention discloses an automatic alignment cutting tool grinding device in the field of tool processing technology, including a grinder, a movable disc, a pushing assembly, a positioning seat and an alignment drive member. A feeding trough is provided on the movable disc near the circumference, a positioning bolt is provided on the positioning seat, the pushing assembly applies pressure to the upper end face of the cutting tool, the positioning seat drives the positioning bolt to rotate under the drive of the symmetrical driving member, and when the positioning bolt rotates to face the inner hole of the cutting tool under the action of pressure, the cutting tool is pressed down and inserted on the positioning bolt, and the cutting tool is driven to rotate by the positioning seat and the positioning bolt to adjust the position of the cutting tool. In the present invention, the positioning bolt can drive the cutting tool to rotate to a specific position, and the inner hole of the cutting tool also rotates to a specific position. At this specific position, the grinder moves downward to directly align with the inner hole for grinding, thereby realizing automatic alignment and improving the accuracy and quality of inner hole grinding.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, and in particular to an automatic calibration cutting tool grinding device. Background Art

[0002] During the production process of cutting tools, the tools need to be polished. To facilitate the installation of the cutting tools, multiple inner holes are usually opened at the center of the cutting tools and near the center. The surface of the cutting tools is polished with a grinding wheel or a grinding disc. In addition to polishing the surface of the cutting tools, polishing the inner holes is also an important step. The polishing effect of the inner holes directly affects the performance and service life of the tools.

[0003] In the prior art, an automated grinding device is usually used to grind the surface of the cutting tool. However, due to the uncertainty of the position of the cutting tool, it is necessary to manually adjust the position of the cutting tool so that the inner hole is aligned with the grinding head before performing subsequent grinding work.

[0004] The existing grinding technology of cutting tools cannot guarantee the position of the cutting tool hole and requires manual alignment. The manual alignment grinding method has low grinding efficiency and low alignment accuracy. If the position is not completely aligned, the grinding head will directly impact the surface of the tool, causing impact wear on the surface of the cutting tool. Summary of the invention

[0005] To this end, the present invention provides an automatically calibrated cutting tool grinding device, which solves the problem in the prior art that the position of the cutting tool hole cannot be guaranteed and manual alignment is required. The manual alignment grinding method has low grinding efficiency and low alignment accuracy. If the position is not completely aligned, the grinding head will directly impact the surface of the tool, causing impact wear on the surface of the cutting tool.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: an automatic alignment cutting tool grinding device, comprising a grinder, a movable disc, a pushing assembly, a positioning seat and an alignment driving member;

[0007] The grinder is arranged above the movable disc, and a loading groove for placing a cutting tool is provided on the movable disc near the circumference, and the pushing assembly can be lifted and installed in the loading groove and is arranged above the edge of the cutting tool;

[0008] The positioning seat is arranged in the feeding trough, and the positioning seat is provided with positioning bolts, and the number of the positioning bolts on the positioning seat is consistent with the number of the inner holes of the cutting tool and the positions thereof correspond;

[0009] The pushing assembly applies pressure to the upper end surface of the cutting tool, and the positioning seat drives the positioning bolt to rotate under the drive of the symmetrical driving member. Under the action of pressure, when the positioning bolt rotates to face the inner hole of the cutting tool, the cutting tool is pressed down and inserted on the positioning bolt;

[0010] The cutting tool is driven to rotate by the positioning seat and the positioning bolt to adjust the position of the cutting tool.

[0011] Further,

[0012] The feeding trough comprises an inner circular groove and a straight groove arranged on the movable disc;

[0013] The straight groove is close to the edge of the movable disc, the width of the straight groove is consistent with the diameter of the cutting tool, and the width of the straight groove is consistent with the diameter of the inner circular groove.

[0014] Further,

[0015] A gear rotating ring is movably arranged on the side of the movable disc, a limit ring is arranged on the gear rotating ring, and a first transmission gear is meshedly arranged on the side of the gear rotating ring;

[0016] The first transmission gear is connected to a first drive motor, and the first drive motor drives the gear rotating ring to rotate through the first transmission gear;

[0017] A mounting slot frame is arranged on the side of the movable disc, and the limiting ring and the gear rotating ring are movably arranged in the mounting slot frame.

[0018] Further,

[0019] The limiting ring is provided with a through opening for the cutting tool to pass through, and the width of the through opening is consistent with the width of the straight groove.

[0020] Further,

[0021] The pushing assembly includes a mounting groove arranged in the inner wall of the inner circular groove, and an arc-shaped pressing plate arranged in the mounting groove;

[0022] The lower end of the arc-shaped pressure plate is connected to a first hydraulic cylinder, which drives the arc-shaped pressure plate to perform lifting motion so that the arc-shaped pressure plate applies pressure to the cutting tool. A second hydraulic cylinder is arranged in the mounting groove.

[0023] Further,

[0024] The second hydraulic cylinder is connected with a push rod, and the end of the push rod is facing the side of the cutting tool.

[0025] Further,

[0026] A placement groove is provided in the inner circular groove, a rotating shaft is rotatably arranged in the placement groove, and the positioning seat is arranged at the upper end of the rotating shaft.

[0027] Further,

[0028] The alignment driving member includes a rotating gear arranged on the rotating shaft, a second transmission gear meshed with a side of the rotating gear, and a driving gear meshed with the second transmission gear, the driving gear is connected to a second driving motor, and the second driving motor drives the rotating gear to rotate through the driving gear and the second transmission gear;

[0029] A vertical groove is provided on the inner wall of the inner circular groove, a lift cabin is slidably arranged in the vertical groove, the upper and lower outer walls of the lift cabin are connected to the upper and lower inner walls of the vertical groove through connecting springs, and the second drive motor and the drive gear are both arranged in the lift cabin.

[0030] Further,

[0031] The lower end of the rotating shaft is connected to a rotating chassis, a built-in groove is arranged in the inner circular groove, the rotating chassis is rotatably arranged in the built-in groove, a torsion spring is arranged on the rotating shaft, and is connected to the inner wall of the built-in groove through the torsion spring.

[0032] Further,

[0033] The grinding machine comprises a mounting frame arranged on the movable disc, a lifting seat arranged on the mounting frame, and a plurality of grinding heads installed at the lower end of the lifting seat;

[0034] The grinding head corresponds to the inner hole of the cutting tool one by one.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] In the present invention, a positioning bolt is arranged on the positioning seat. After the cutting tool is placed in the feeding trough, pressure is applied to the upper end surface of the cutting tool through the pushing assembly. The positioning seat can drive the positioning bolt to rotate and gradually align with the inner hole of the cutting tool. When the positioning bolt rotates to face the inner hole of the cutting tool, the cutting tool is pressed down and inserted into the positioning bolt. At this time, the positioning bolt can drive the cutting tool to rotate to a specific position, and the inner hole of the cutting tool also rotates to a specific position. In this specific position, the grinder can move downward to directly align with the inner hole for grinding, thereby realizing automatic alignment and improving the accuracy and quality of inner hole grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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.

[0038] Figure 1 A schematic structural diagram of an automatic calibration cutting tool grinding device provided by an embodiment of the present invention;

[0039] Figure 2 It is a schematic structural diagram of a gear rotating ring and a first transmission gear in an embodiment of the present invention;

[0040] Figure 3 for Figure 1 An enlarged structural diagram of the middle upper trough;

[0041] Figure 4 Schematic diagram of the internal structure of the feeding trough in the embodiment of the present invention;

[0042] Figure 5 is a schematic structural diagram of a grinding machine in an embodiment of the present invention;

[0043] Figure 6 Schematic diagram of the structure of the arc pressure plate in an embodiment of the present invention.

[0044] The numbers in the figure represent the following:

[0045] 1- movable disc; 5- grinder; 6- cutting tool;

[0046] 32-loading chute; 33-pushing assembly;

[0047] 42-alignment drive member;

[0048] 51-mounting frame;

[0049] 311-gear rotating ring; 312-limiting ring; 313-first transmission gear; 314-through hole; 315-first driving motor; 316-mounting slot frame;

[0050] 321-inner circular groove; 322-straight groove;

[0051] 331-mounting slot; 332-arc-shaped pressing plate; 333-first hydraulic cylinder; 334-second hydraulic cylinder; 335-push rod;

[0052] 411-receiving groove; 412-rotating shaft; 413-positioning seat; 414-positioning bolt;

[0053] 421-rotating gear; 422-second transmission gear; 423-driving gear; 424-second driving motor; 425-vertical slot; 426-lifting cabin; 427-connecting spring; 428-rotating chassis; 429-built-in slot; 4210-torsion spring;

[0054] 522-lifting seat; 523-grinding head. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0056] like Figure 1 As shown, the present invention provides an automatic alignment cutting tool grinding device, including a grinder 5, a movable disc 1, a pushing assembly 33, a positioning seat 413 and an alignment driving member 42 and other structures.

[0057] The grinder 5 is arranged above the movable disc 1 , and the grinder 5 can be raised and lowered to grind the cutting tool 6 directly below.

[0058] A loading groove 32 for placing the cutting tool 6 is provided near the circumference of the movable disc 1 . The pushing assembly 33 can be lifted and lowered in the loading groove 32 and is arranged above the edge of the cutting tool 6 .

[0059] The positioning seat 413 is disposed in the loading trough 32 , and a positioning bolt 414 is disposed on the positioning seat 413 . The number of the positioning bolts 414 on the positioning seat 413 is consistent with the number of the inner holes of the cutting tool 6 , and the positions thereof correspond.

[0060] The pushing assembly 33 applies pressure to the upper end surface of the cutting tool 6, and the positioning seat 413 drives the positioning bolt 414 to rotate under the driving of the symmetrical driving member 42. When the positioning bolt 414 rotates to face the inner hole of the cutting tool 6 under the pressure, the cutting tool 6 is pressed down and inserted into the positioning bolt 414.

[0061] The cutting tool 6 is driven to rotate by the positioning seat 413 and the positioning bolt 414 to adjust the position of the cutting tool 6 .

[0062] In the present invention, a positioning bolt 414 is provided on the positioning seat 413. After the cutting tool 6 is placed in the feeding trough 32, pressure is applied to the upper end surface of the cutting tool 6 through the pushing assembly 33. The positioning seat 413 can drive the positioning bolt 414 to rotate and gradually align with the inner hole of the cutting tool 6. When the positioning bolt 414 rotates to face the inner hole of the cutting tool 6, the cutting tool 6 is pressed down and inserted into the positioning bolt 414. At this time, the positioning bolt 414 can drive the cutting tool 6 to rotate to a specific position, and the inner hole of the cutting tool 6 also rotates to a specific position. At this specific position, the grinder 5 can move downward to directly align with the inner hole for grinding, thereby realizing automatic alignment and improving the accuracy and quality of inner hole grinding.

[0063] The present invention temporarily stores the cutting tool 6 through the feeding trough 32, and realizes the correction of the inner hole position of the cutting tool 6 in the feeding trough 32. The feeding trough 32 of the present invention mainly adopts the following preferred embodiments, the feeding trough 32 includes an inner circular groove 321 and a straight groove 322 arranged on the movable disc 1;

[0064] The straight groove 322 is close to the edge of the movable disc 1 , and the width of the straight groove 322 is consistent with the diameter of the cutting tool 6 , and the width of the straight groove 322 is consistent with the diameter of the inner circular groove 321 .

[0065] During the process of the loading trough 32 receiving the cutting tool 6, the cutting tool 6 slides from the outer edge of the loading trough 32 to the straight groove 322 and then to the inner circular groove 321. The side size of the inner circular groove 321 is consistent with the size of the cutting tool 6, so that the cutting tool 6 just enters the inner circular groove 321 and fits on the inner wall of the inner circular groove 321.

[0066] To realize automatic feeding, an automatic feeding structure may be provided on the outer edge of the feeding trough 32 .

[0067] Since the cutting tool 6 cannot always fit on the inner wall of the inner circular groove 321 without external force, and in the present invention, the cutting tool 6 needs to fit on the inner wall of the inner circular groove 321 to achieve the subsequent correction action, the present invention makes the following design, such as Figure 2 As shown, a gear rotating ring 311 is movably provided on the side of the movable disc 1, a limit ring 312 is provided on the gear rotating ring 311, and a first transmission gear 313 is meshedly provided on the side of the gear rotating ring 311;

[0068] The first transmission gear 313 is connected to a first driving motor 315, and the first driving motor 315 drives the gear rotating ring 311 to rotate through the first transmission gear 313;

[0069] A mounting slot frame 316 is arranged on the side of the movable disc 1 , and the limiting ring 312 and the gear rotating ring 311 are movably arranged in the mounting slot frame 316 .

[0070] The limiting ring 312 is provided with a through opening 314 for the cutting tool 6 to pass through, and the width of the through opening 314 is consistent with the width of the straight groove 322 .

[0071] In the above embodiment, when it is necessary to limit the cutting tool 6 in the inner circular groove 321, the first driving motor 315 is driven to drive the first transmission gear 313 to rotate, thereby driving the gear rotating ring 311 to rotate, and the gear rotating ring 311 rotates to drive the limiting ring 312 to rotate, thereby driving the through-hole 314 to rotate to a state that is fully connected with the straight groove 322 and facing the feeding structure. At this time, the feeding structure pushes the cutting tool 6 into the inner circular groove 321, and then the first driving motor 315 drives the limiting ring 312 to rotate through the first transmission gear 313 and the gear rotating ring 311. Under the extrusion action of the limiting ring 312, the cutting tool 6 is completely pushed into the inner circular groove 321, and the opening of the straight groove 322 is in a closed state, so that the cutting tool 6 is limited in the inner circular groove 321. At this time, the outer wall of the cutting tool 6 is supported on the inner wall of the limiting ring 312, and part of the outer wall is in contact with the groove wall of the inner circular groove 321.

[0072] In order to support the gear rotating ring 311 and the limiting ring 312 during their rotation, a mounting groove frame 316 is provided on the side of the movable disc 1 , and the limiting ring 312 and the gear rotating ring 311 are partially arranged in the mounting groove frame 316 .

[0073] Assuming that a material unloading structure is provided at a position opposite to the material loading structure, in order to enable the cutting tool 6 to be smoothly transmitted out at the material unloading position, the following design is required: the first drive motor 315 can drive the gear rotating ring 311 to perform a speed change motion, and the gear rotating ring 311 drives the limit ring 312 to rotate together, and the movable disc 1 itself can rotate after completing the calibration, and the through-hole 314 is in a fully connected state with the straight groove 322 when facing the material loading structure. That is to say, after completing the material loading, the first drive motor 315 is connected to the material loading structure through the first transmission gear 313 and the gear rotating ring 311. The movable ring 311 drives the limiting ring 312 to rotate, so that the straight groove 322 changes from the initial connected state to the closed state (the through-hole 314 is not directly opposite the straight groove 322). Before unloading, the straight groove 322 needs to change from the closed state to the connected state. Therefore, at the beginning, the first drive motor 315 drives faster, so that the limiting ring 312 is faster than the movable disc 1. Finally, the first drive motor 315 gradually slows down so that the through-hole 314 on the limiting ring 312 gradually overlaps with the straight groove 322, so that the cutting tool 6 can unload from the straight groove 322.

[0074] During the transportation of the cutting tool 6, the pushing assembly 33 positions it. During the unloading process of the cutting tool 6, as shown in FIG. Figure 3 and Figure 4As shown, the pushing assembly 33 pushes it to unload the material. The pushing assembly 33 of the present invention adopts the following preferred embodiment. The pushing assembly 33 includes a mounting groove 331 arranged in the inner wall of the inner circular groove 321, and an arc-shaped pressure plate 332 arranged in the mounting groove 331; the lower end of the arc-shaped pressure plate 332 is connected to a first hydraulic cylinder 333, and the first hydraulic cylinder 333 drives the arc-shaped pressure plate 332 to perform lifting and lowering movements so that the arc-shaped pressure plate 332 applies pressure to the cutting tool 6, and a second hydraulic cylinder 334 is arranged in the mounting groove 331.

[0075] A push rod 335 is connected to the second hydraulic cylinder 334 , and the end of the push rod 335 faces the side of the cutting tool 6 .

[0076] The first hydraulic cylinder 33 drives the arc pressure plate 332 to press down the cutting tool 6, so as to position the cutting tool 6 in the inner circular groove 321. The second hydraulic cylinder 334 drives the push rod 335 to move toward the direction close to the straight groove 322, so as to push the cutting tool 6 out of the straight groove 322 and the inner circular groove 321 during the material cutting process, so as to cut the cutting tool 6.

[0077] In order to further realize the correction of the cutting tool 6, the present invention also makes the following design, such as Figure 4 As shown, a placement groove 411 is defined in the inner circular groove 321 , a rotating shaft 412 is rotatably disposed in the placement groove 411 , and a positioning seat 413 is disposed at the upper end of the rotating shaft 412 .

[0078] In the initial state, the cutting tool 6 enters the inner circular groove 321, and the positioning bolt 414 is not aligned with the inner hole of the cutting tool 6. The positioning bolt 414 supports the cutting tool 6. When the positioning bolt 414 rotates a certain angle and aligns with the positioning bolt 414, the cutting tool 6 moves down, and the positioning bolt 414 is stuck in the inner hole of the cutting tool 6. At this time, the positioning bolt 414 drives the cutting tool 6 to rotate to the initial position of the positioning bolt 414 to realize the calibration process.

[0079] In this process, the alignment driving member 42 drives the positioning bolt 414 to rotate and drives the positioning bolt 414 to reset. The alignment driving member 42 of the present invention mainly adopts the following preferred embodiments, such as Figure 4 As shown, the alignment driving member 42 includes a rotating gear 421 arranged on the rotating shaft 412, a second transmission gear 422 meshed with the side of the rotating gear 421, and a driving gear 423 meshed with the second transmission gear 422, and the driving gear 423 is connected to a second driving motor 424, and the second driving motor 424 drives the rotating gear 421 to rotate through the driving gear 423 and the second transmission gear 422;

[0080] A vertical groove 425 is opened on the inner wall of the inner circular groove 321, and a lifting cabin 426 is slidably arranged in the vertical groove 425. The upper and lower outer walls of the lifting cabin 426 are connected to the upper and lower inner walls of the vertical groove 425 through connecting springs 427, and the second driving motor 424 and the driving gear 423 are both arranged in the lifting cabin 426.

[0081] The second driving motor 4242 drives the driving gear 423 to rotate, thereby driving the second transmission gear 422 to rotate. The second transmission gear 422 drives the rotating gear 421 to rotate, thereby driving the positioning seat 413 and the positioning bolt 414 to rotate through the rotating shaft 412, until the positioning bolt 414 and the inner hole of the cutting tool 6 correspond to each other up and down, and then drives the cutting tool 6 to rotate to the initial position of the positioning bolt 414 through the positioning bolt 414.

[0082] In order to enable the positioning bolt 414 to drive the cutting tool 6 to rotate to the initial position of the positioning bolt 414, the present invention also makes the following design: the lower end of the rotating shaft 412 is connected to a rotating chassis 428, a built-in groove 429 is provided in the inner circular groove 321, the rotating chassis 428 is rotatably set in the built-in groove 429, and a torsion spring 4210 is provided on the rotating shaft 412, and is connected to the inner wall of the built-in groove 429 through the torsion spring 4210.

[0083] In this embodiment, the calibration process of the cutting tool 6 is as follows:

[0084] When the cutting tool 6 enters the inner circular groove 321, the arc-shaped pressing plate 332 presses it downward, and the second driving motor 424 drives the driving gear 423 to rotate, thereby driving the second transmission gear 422 to rotate, and the second transmission gear 422 drives the rotating gear 421 to rotate, thereby driving the positioning seat 413 and the positioning bolt 414 to rotate through the rotating shaft 412 (the torsion spring 4210 gradually generates an extrusion elastic force during the rotation of the positioning seat 413), until the positioning bolt 414 and the inner hole of the cutting tool 6 are rotated to correspond to each other up and down, and under the pressure of the arc-shaped pressing plate 332, the cutting tool 6 moves down until the positioning bolt 414 is completely stuck in the inner hole of the cutting tool 6;

[0085] During the downward movement of the cutting tool 6, the cutting tool 6 drives the lifting cabin 426 to move downward, thereby driving the second driving motor 424 and the driving gear 423 to move downward. At this time, the driving gear 423 is not engaged with the second transmission gear 422, the second transmission gear 422 is not driven and stops rotating, the positioning bolt 414 also stops rotating, and the driving gear 423 will no longer restrict the rotation of the second transmission gear 422 and the rotating gear 421. Under the action of the torsion spring 4210, the rotating shaft 412 is driven to reset to the initial position, thereby driving the cutting tool 6 to a specific angle. At this time, the correction of the cutting tool 6 is completed.

[0086] Assuming that the rotation angle during the initial rotation is a°, when the driving action of the driving gear 423 is disengaged, the cutting tool 6 can be driven to rotate a° and reset to the initial position under the action of the torsion spring 4210. Therefore, no matter where the inner hole of the cutting tool 6 is at the beginning, it can be reset to a specific position during the resetting process to achieve the correction of the inner hole. The corrected inner hole moves to the bottom of the grinder 5 and can face the grinding head 523. Then, the pressure of the arc pressure plate 332 is released. Under the elastic force of the connecting spring 427, the lifting cabin 426 lifts the cutting tool 6 away from the positioning bolt 414, and the grinding head 523 descends to enter the inner hole for grinding.

[0087] When the cutting tool 6 needs to be unloaded, the second hydraulic cylinder 334 drives the push rod 335 to push the cutting tool 6 out of the inner circular groove 321 .

[0088] In the above embodiment, only one side of the cutting tool 6 can be lifted by the lifting cabin 426, which may not completely lift the cutting tool 6 and separate it from the positioning bolt 414. Figure 6 As shown, the present invention can set the arc-shaped pressure plate 332 to a slotted arc-shaped structure, and the push rod 335 can pass through the arc-shaped structure.

[0089] The grinding machine 5 of the present invention adopts the following preferred embodiments, as Figure 5 As shown, the grinding machine 5 includes a mounting frame 51 disposed on the movable disc 1, a lifting seat 522 disposed on the mounting frame 51, and a plurality of grinding heads 523 mounted at the lower end of the lifting seat 522;

[0090] The grinding head 523 corresponds to the inner hole of the cutting tool 6 one by one.

[0091] The lifting seat 522 can be raised and lowered to drive the grinding head 523 to descend and gradually penetrate into the inner hole of the cutting tool 6 to perform grinding work.

[0092] In summary, the main implementation process of the present invention is:

[0093] The movable disc 1 rotates to face the feeding structure, the first driving motor 315 drives the first transmission gear 313 to rotate, thereby driving the gear rotating ring 311 to rotate, the gear rotating ring 311 rotates to drive the limit ring 312 to rotate, thereby driving the through hole 314 to rotate to a state of being fully connected with the straight groove 322, and the feeding structure feeds the cutting tool 6 (or is fed);

[0094] The first driving motor 315 drives the limiting ring 312 to rotate through the first transmission gear 313 and the gear rotating ring 311, so that the cutting tool 6 is completely pushed into the inner circular groove 321 under the pressure of the limiting ring 312, and the cutting tool 6 is limited in the inner circular groove 321;

[0095] The arc-shaped pressing plate 332 presses down the cutting tool 6, and at the same time, the second driving motor 424 drives the positioning seat 413 and the positioning bolt 414 to rotate until the positioning bolt 414 and the inner hole of the cutting tool 6 correspond to each other up and down. Under the pressure of the arc-shaped pressing plate 332, the cutting tool 6 moves down until the positioning bolt 414 is completely stuck in the inner hole of the cutting tool 6. During the downward movement of the cutting tool 6, the lifting cabin 426 moves down, and the rotating gear 421 is no longer limited. Under the action of the torsion spring 4210, the rotating shaft 412 is driven to return to the initial position, thereby driving the inner hole on the cutting tool 6 to move to a specific position to complete the calibration.

[0096] The movable disc 1 drives the cutting tool 6 to move to the bottom of the grinder 5, driving the arc-shaped pressure plate 332 to reset. Under the elastic force of the connecting spring 427, the lifting cabin 426 applies a supporting force to the cutting tool 6 on one side, and drives the cutting tool 6 to move away from the positioning bolt 414 through the arc-shaped pressure plate 332 and the lifting cabin 426.

[0097] The lifting seat 522 drives the grinding head 523 to descend to grind the inner hole;

[0098] The movable disc 1 drives the cutting tool 6 to the unloading position. At this time, the through opening 314 rotates to be fully connected with the straight groove 322, and the second hydraulic cylinder 334 drives the push rod 335 to push the cutting tool 6 outward to complete the unloading.

[0099] In the present invention, a structure for grinding the surface of the cutting tool 6 can also be provided at the grinder 5. Before grinding the inner hole, the surface of the cutting tool is ground. In this case, it is necessary to ensure that the top of the positioning bolt 414 does not exceed the surface of the cutting tool 6 to avoid blocking the grinding process. The positioning bolt can also play a fixing role.

[0100] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. An automatic calibration cutting tool grinding device, characterized in that: It comprises a grinder (5), a movable disc (1), a pushing assembly (33), a positioning seat (413) and an alignment driving member (42); The grinder (5) is arranged above the movable disc (1); a loading groove (32) for placing the cutting tool (6) is provided on the movable disc (1) near the circumference; the pushing assembly (33) can be lifted and installed in the loading groove (32) and is arranged above the edge of the cutting tool (6); The positioning seat (413) is arranged in the feeding trough (32), and a positioning bolt (414) is arranged on the positioning seat (413), and the number of the positioning bolts (414) on the positioning seat (413) is consistent with the number of the inner holes of the cutting tool (6) and the positions thereof correspond; The pushing assembly (33) applies pressure to the upper end surface of the cutting tool (6), and the positioning seat (413) drives the positioning bolt (414) to rotate under the drive of the alignment driving member (42), and when the positioning bolt (414) rotates to face the inner hole of the cutting tool (6) under the action of pressure, the cutting tool (6) is pressed downward and inserted into the positioning bolt (414); The cutting tool (6) is driven to rotate by the positioning seat (413) and the positioning bolt (414) to adjust the position of the cutting tool (6); The loading trough (32) comprises an inner circular groove (321) and a straight groove (322) arranged on the movable disc (1); The straight groove (322) is close to the edge of the movable disc (1), the width of the straight groove (322) is consistent with the diameter of the cutting tool (6), and the width of the straight groove (322) is consistent with the diameter of the inner circular groove (321); A gear rotating ring (311) is movably provided on the side of the movable disc (1), a limit ring (312) is provided on the gear rotating ring (311), and a first transmission gear (313) is meshedly provided on the side of the gear rotating ring (311); The first transmission gear (313) is connected to a first drive motor (315), and the first drive motor (315) drives the gear rotating ring (311) to rotate via the first transmission gear (313); A mounting slot frame (316) is provided on the side of the movable disc (1), and the limiting ring (312) and the gear rotating ring (311) are movably arranged in the mounting slot frame (316).

2. The automatic calibration cutting tool grinding device according to claim 1, characterized in that: The limiting ring (312) is provided with a through opening (314) for the cutting tool (6) to pass through, and the width of the through opening (314) is consistent with the width of the straight groove (322).

3. The automatic calibration cutting tool grinding device according to claim 2, characterized in that: The pushing assembly (33) comprises a mounting groove (331) arranged in the inner wall of the inner circular groove (321), and an arc-shaped pressing plate (332) arranged in the mounting groove (331); The lower end of the arc-shaped pressing plate (332) is connected to a first hydraulic cylinder (333), and the first hydraulic cylinder (333) drives the arc-shaped pressing plate (332) to perform lifting movement so that the arc-shaped pressing plate (332) applies pressure to the cutting tool (6). A second hydraulic cylinder (334) is arranged in the installation groove (331).

4. The automatic calibration cutting tool grinding device according to claim 3, characterized in that: The second hydraulic cylinder (334) is connected to a push rod (335), and the end of the push rod (335) faces the side of the cutting tool (6).

5. The automatic alignment cutting tool grinding device according to claim 4, characterized in that: A placement groove (411) is provided in the inner circular groove (321), a rotating shaft (412) is rotatably arranged in the placement groove (411), and the positioning seat (413) is arranged at the upper end of the rotating shaft (412).

6. The automatic alignment cutting tool grinding device according to claim 5, characterized in that: The alignment driving member (42) comprises a rotating gear (421) arranged on the rotating shaft (412), a second transmission gear (422) meshed with a side of the rotating gear (421), and a driving gear (423) meshed with the second transmission gear (422), the driving gear (423) being connected to a second driving motor (424), and the second driving motor (424) drives the rotating gear (421) to rotate via the driving gear (423) and the second transmission gear (422); A vertical groove (425) is provided on the inner wall of the inner circular groove (321), a lift cabin (426) is slidably arranged in the vertical groove (425), upper and lower outer walls of the lift cabin (426) are connected to upper and lower inner walls of the vertical groove (425) via connecting springs (427), and the second drive motor (424) and the drive gear (423) are both arranged in the lift cabin (426).

7. The automatic alignment cutting tool grinding device according to claim 6, characterized in that: The lower end of the rotating shaft (412) is connected to a rotating chassis (428), a built-in groove (429) is provided in the inner circular groove (321), the rotating chassis (428) is rotatably disposed in the built-in groove (429), and a torsion spring (4210) is provided on the rotating shaft (412) and is connected to the inner wall of the built-in groove (429) via the torsion spring (4210).

8. The automatic alignment cutting tool grinding device according to claim 7, characterized in that: The grinding machine (5) comprises a mounting frame (51) arranged on the movable disc (1), a lifting seat (522) arranged on the mounting frame (51), and a plurality of grinding heads (523) mounted at the lower end of the lifting seat (522); The grinding head (523) corresponds one-to-one to the inner hole of the cutting tool (6).

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