Gun drill grinding device

Abstract

The utility model provides a gun drill grinding device which is used for grinding a gun drill and comprises a sleeve, a pressing block and a first locking piece. The sleeve is provided with an accommodating groove for placing the gun drill; the pressing block is arranged in the sleeve and opposite to the containing groove, and a matching part is arranged on the side, facing the containing groove, of the pressing block and used for being in abutting fit with a chip groove of the gun drill. One end of the first locking piece is connected with the pressing block, the other end of the first locking piece is connected with the sleeve, and the first locking piece is used for providing locking force so that the gun drill can be clamped between the pressing block and the containing groove. The gun drill can be stably clamped in the containing groove through abutting fit of the matching part and the chip removal groove, the gun drill is prevented from moving due to the impact force of grinding, and it is guaranteed that grinding is conducted smoothly; moreover, the matching part is matched with the chip groove in an abutting mode, the matching part and the chip groove have enough contact area, vibration generated in the grinding process can be absorbed, and the gun drill is prevented from deforming due to huge impact force of grinding.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to a gun drill grinding device. Background Art

[0002] The gun drill is a tool used for hole cutting, especially for deep hole processing. The sharpness of the gun drill blade closely affects the hole processing accuracy and efficiency. After a long period of use, the blade of the gun drill will wear and affect the hole processing, and the blade needs to be sharpened.

[0003] In the related art, in order to fix the gun drill during the grinding process, the operator usually designs a whole jacket according to the shape of the gun drill. The jacket is fitted on the outer surface of the gun drill and the whole connected by the two is locked and fixed by fasteners, which makes the assembly more complicated. Utility Model Content

[0004] The present application provides a gun drill grinding device to solve the problem of complex clamping and assembling structure required for gun drill grinding operation in the related art.

[0005] The embodiment of the present application provides a gun drill grinding device, which is used for grinding a gun drill, wherein the gun drill comprises a tool bar and a chip removal groove extending along the axial direction of the tool bar, and the gun drill grinding device comprises:

[0006] A sleeve, provided with a receiving groove for placing the gun drill;

[0007] A pressure block is disposed in the sleeve and opposite to the receiving groove, and a matching portion is provided on a side of the pressure block facing the receiving groove, and the matching portion is used to abut and match with the chip removal groove of the gun drill; and

[0008] A first locking member has one end connected to the pressing block and the other end connected to the sleeve, and the first locking member is used to provide a locking force to clamp the gun drill between the pressing block and the accommodating groove.

[0009] Optionally, the gun drill includes a first conical surface forming the chip groove, and the matching portion includes a second conical surface, and the second conical surface is used for positioning and matching with the first conical surface.

[0010] Optionally, the gun drill grinding device further comprises a grinding mechanism for grinding the gun drill;

[0011] The pressing block comprises:

[0012] a top surface connected to the first locking member; and

[0013] The first end surface is connected to one end of the top surface and faces the grinding mechanism. The distance from the first end surface to the plane where the top surface is located decreases from the end of the first end surface close to the grinding mechanism to the end of the first end surface far from the grinding mechanism.

[0014] Optionally, the pressing block further comprises:

[0015] A second end surface connected to the top surface and extending along the sleeve axis direction;

[0016] a third end surface connected to the top surface and arranged opposite to the second end surface;

[0017] A first side surface is connected between the first end surface and the second end surface, and a distance from the first side surface to the grinding mechanism decreases from an end where the first side surface is connected to the second end surface to an end away from the second end surface; and

[0018] The second side surface is connected between the first end surface and the third end surface, and the distance from the second side surface to the grinding mechanism decreases from an end of the second side surface connected to the third end surface to an end away from the third end surface.

[0019] Optionally, the pressing block includes a body and a handle connected to the body, and the handle extends to the outside of the sleeve along the axial direction of the sleeve.

[0020] Optionally, the sleeve includes a first cylinder and a support block connected to the inner wall of the first cylinder, the support block is provided with the accommodating groove, the support block includes a third conical surface forming the accommodating groove, and the third conical surface is used for positioning and cooperating with the outer peripheral wall of the gun drill.

[0021] Optionally, the support block includes:

[0022] a first portion, the first portion comprising a first surface; and

[0023] The second part is connected to the first part, the second part protrudes from the first surface, the receiving groove is arranged in the second part, and the groove bottom of the receiving groove is higher than the first surface.

[0024] Optionally, the sleeve includes a first cylinder and a second cylinder sleeved on the first cylinder, and the first cylinder can rotate relative to the second cylinder under the action of an external force;

[0025] The gun drill grinding device further includes a second locking member, which is passed through the second cylinder and is used to abut against the first cylinder, and the second locking member is used to provide a locking force to lock the second cylinder in the second cylinder.

[0026] Optionally, the gun drill grinding device further comprises:

[0027] A base having a mounting surface; and

[0028] The first rotating assembly is disposed on the base and connected to the sleeve. The first rotating assembly is used to drive the sleeve to rotate around a first axis, and the first axis is parallel to the installation surface.

[0029] Optionally, the gun drill grinding device also includes a second rotating assembly, which is disposed on the base and connected to the first rotating assembly, and the second rotating assembly is used to drive the first rotating assembly to rotate around a second axis, and the second axis is perpendicular to the mounting surface.

[0030] The gun drill grinding device of the present application is provided with a sleeve, a pressure block and a first locking member, and a matching portion is provided on the side of the pressure block facing the sleeve receiving groove, and the matching portion is abutted and matched with the chip groove of the gun drill. One end of the first locking member is connected to the pressure block, and the other end is connected to the sleeve, so that the gun drill is clamped between the pressure block and the receiving groove of the sleeve under the locking force provided by the first locking member. Through the abutment and matching of the matching portion and the chip groove, the gun drill can be firmly clamped in the receiving groove, preventing the gun drill from moving due to the impact force of grinding, and ensuring the smooth progress of the grinding process; moreover, the matching portion abuts and matches with the chip groove, so that the matching portion and the chip groove have sufficient contact area, which can absorb the vibration generated during the grinding process, protect the gun drill, and prevent the gun drill from being deformed due to the huge impact force of grinding. The embodiment of the present application only needs to adapt the pressure block according to the characteristics of the chip groove of the gun drill. Compared with the related art of designing a whole jacket specifically for the gun drill, the overall assembly structure is simple and easy to manufacture, which can reduce costs and is convenient for operators to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of the structure of a gun drill provided in an embodiment of the present application.

[0033] Figure 2 This is a schematic structural diagram of the gun drill grinding device provided in an embodiment of the present application from a first perspective.

[0034] Figure 3 A schematic structural diagram of a gun drill grinding device from a second perspective provided in an embodiment of the present application.

[0035] Figure 4 A schematic structural diagram of the clamping mechanism of the gun drill grinding device provided in an embodiment of the present application.

[0036] Figure 5 A schematic structural diagram of a pressing block of a gun drill grinding device provided in an embodiment of the present application from a first perspective.

[0037] Figure 6 A front view of the clamping mechanism provided in an embodiment of the present application.

[0038] Figure 7 A second structural schematic diagram of the pressing block of the gun drill grinding device provided in an embodiment of the present application.

[0039] Figure 8 A schematic structural diagram of a support block of a gun drill grinding device provided in an embodiment of the present application.

[0040] Fig. 9 for Figure 1 A partial enlarged view of point A in the middle.

[0041] Fig.10 A schematic diagram of a first rotating assembly driving a sleeve to rotate provided in an embodiment of the present application.

[0042] Fig.11 A side view of the end of a gun drill blade provided in an embodiment of the present application.

[0043] Fig.12 This is a schematic structural diagram of the grinding mechanism of the gun drill grinding device provided in an embodiment of the present application from a first perspective.

[0044] Fig.13 A schematic structural diagram of the grinding mechanism of the gun drill grinding device provided in an embodiment of the present application from a second perspective.

[0045] Description of Figure Numbers:

[0046] 10. Gun drill grinding device;

[0047] 100, grinding mechanism; 110, grinding block; 120, driving motor; 130, moving assembly;

[0048] 131, first linear slide rail; 1311, first slider; 132, second linear slide rail;

[0049] 1321, second slide block; 133, third linear slide rail;

[0050] 200, clamping mechanism;

[0051] 210, sleeve; 211, first cylinder; 211a, first threaded hole;

[0052] 212, second cylinder; 212a, second threaded hole;

[0053] 213, support block; 2131, first portion; 2131a, first surface;

[0054] 2132, second part; 2132a, receiving groove; 2132b, third cone surface;

[0055] 220, pressing block; 221, main body; 2211, matching portion; 2211a, second conical surface; 222, handle;

[0056] 221a, top surface; 221b, first end surface; 221c, second end surface; 221d, third end surface;

[0057] 221e, first side surface; 221f, second side surface;

[0058] 220a, first avoidance gap; 220b, second avoidance gap; 220c, third avoidance gap;

[0059] 230, first locking member; 240, second locking member;

[0060] 250, first rotating assembly; 260, second rotating assembly; 270, bracket;

[0061] 300, base; 301, mounting surface; 400, camera; 500, display;

[0062] 20. gun drill; 21. tool handle; 22. tool bar; 22a. chip groove; 22a1. groove surface; 23. blade;

[0063] 23a, first cutting edge surface; 23b, second cutting edge surface; 23c, third cutting edge surface;

[0064] 23d, fourth cutting edge surface; 23e, fifth cutting edge surface. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0066] The present application provides a gun drill grinding device.

[0067] Specifically, a gun drill is a tool used for hole cutting, especially for deep hole processing. Gun drills can be used with guide sleeves in deep hole drilling machines. Of course, gun drills can also be used in traditional machine tools. Please refer to Figure 1 , Figure 1 The schematic diagram of the structure of the gun drill provided in the embodiment of the present application. The gun drill 20 includes a shank 21 and a shank 22. A blade 23 is formed at the end of the shank 22. The gun drill 20 mainly cuts the material to be processed through the blade 23. The gun drill 20 also has a chip groove 22a. The chip groove 22a extends from the end of the shank 22 along the axial direction of the shank 22. The chip groove 22a is used to guide and discharge the chips cut by the blade 23. Undoubtedly, the sharpness of the blade 23 of the gun drill 20 closely affects the processing accuracy and efficiency of the hole. After the gun drill 20 is used for a long time, the blade 23 part will be worn and affect the hole processing, and the blade 23 needs to be sharpened. The gun drill grinding device provided in the present application is a device for grinding the gun drill 20, which is particularly suitable for grinding the blade 23 of the gun drill 20.

[0068] It should be understood that the gun drill grinding device provided in the present application can also be used to grind other cutting tools.

[0069] Please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic structural diagram of a gun drill grinding device from a first perspective provided in an embodiment of the present application. Figure 3 The schematic diagram of the structure of the gun drill grinding device provided in the embodiment of the present application from a second perspective is as follows: The gun drill grinding device 10 comprises a grinding mechanism 100 and a clamping mechanism 200 .

[0070] Among them, the grinding mechanism 100 is the main actuator of the gun drill grinding device 10, and the grinding mechanism 100 may include a grinding block (also called a grinder or a grindstone). The grinding mechanism 100 can grind the blade 23 of the gun drill 20 through the high-speed rotation of the grinding block, thereby realizing the grinding of the blade 23 of the gun drill 20.

[0071] The clamping mechanism 200 is disposed on one side of the grinding mechanism 100 . The clamping mechanism 200 is used to clamp and fix the gun drill 20 to ensure that the gun drill 20 is always firmly clamped in the gun drill grinding device 10 during the grinding process of the grinding block on the gun drill 20 , thereby ensuring the smooth progress of the grinding process and protecting the gun drill 20 .

[0072] Please combine Figure 2 And refer to Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the structure of the clamping mechanism of the gun drill grinding device provided in an embodiment of the present application. Figure 5A schematic diagram of the structure of a pressure block of a gun drill grinding device provided in an embodiment of the present application from a first perspective. The clamping mechanism 200 includes a sleeve 210, a pressure block 220, and a first locking member 230. In the description of the present application, it should be understood that terms such as "first" and "second" are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0073] The sleeve 210 is provided with a receiving groove 2132a for placing the gun drill 20. It can be understood that the receiving groove 2132a can be designed to be compatible with the shape of the gun drill 20, so that the gun drill 20 can be stably placed in the receiving groove 2132a.

[0074] The pressing block 220 is disposed in the sleeve 210 and is disposed opposite to the receiving groove 2132a. A matching portion 2211 is disposed on the side of the pressing block 220 facing the receiving groove 2132a. The matching portion 2211 is used to abut and match with the chip removal groove 22a of the gun drill 20. One end of the first locking member 230 is connected to the pressing block 220, and the other end is connected to the sleeve 210. The first locking member 230 is used to provide a locking force to clamp the gun drill 20 between the pressing block 220 and the receiving groove 2132a.

[0075] The matching portion 2211 can be designed to match the shape of the chip groove 22a, so that the matching portion 2211 can be firmly abutted with the chip groove 22a under the action of the locking force, preventing the gun drill 20 from moving due to the impact force caused by the high-speed rotation of the grinding block during the grinding process. In addition, by designing the matching portion 2211 to abut against the chip groove 22a, the matching portion 2211 of the pressure block 220 is fully in contact with the chip groove 22a of the gun drill 20, which can absorb the vibration generated during the grinding process, and can protect the gun drill 20, preventing the end of the gun drill 20 from being deformed by the huge impact of the grinding block.

[0076] The first locking member 230 may be some structures capable of providing a pre-tightening force, for example, the first locking member 230 may be a screw, a quick clamp, a spring member, and the like.

[0077] For example, in one embodiment, the first locking member 230 is configured as a locking screw. Figure 4 And refer to Figure 6 , Figure 6 The front view of the clamping mechanism provided by the embodiment of the present application is as follows: The sleeve 210 is provided with a first threaded hole 211a penetrating through its side wall, and the first locking member 230 is penetrated through the first threaded hole 211a and threadedly engaged with the first threaded hole 211a.

[0078] Specifically, when the gun drill 20 is clamped and fixed, the pressing block 220 is placed on the gun drill 20, and the end of the first locking piece 230 extending into the sleeve 210 abuts against the side of the pressing block 220 facing away from the gun drill 20. The first locking piece 230 is moved into the sleeve 210 by twisting the first locking piece 230. Since the threaded cooperation between the first locking piece 230 and the first threaded hole 211a has a self-locking effect, that is, a locking force is provided, at this time, the pressing block 220 is tightly attached to the gun drill 20 under the abutment of the first locking piece 230, and the first locking piece 230 is continuously twisted until it is difficult to continue to twist, so that the gun drill 20 is firmly clamped between the pressing block 220 and the accommodating groove 2132a.

[0079] Then, the gun drill grinding device 10 provided in the embodiment of the present application is provided with a sleeve 210, a pressure block 220 and a first locking member 230. A matching portion 2211 is provided on the side of the pressure block 220 facing the receiving groove 2132a of the sleeve 210. The matching portion 2211 abuts and cooperates with the chip groove 22a of the gun drill 20. One end of the first locking member 230 is connected to the pressure block 220, and the other end is connected to the sleeve 210, so that the gun drill 20 is clamped between the pressure block 220 and the receiving groove 2132a of the sleeve 210 under the locking force provided by the first locking member 230. Through the abutment and cooperation between the matching portion 2211 and the chip groove 22a, the gun drill 20 can be firmly clamped in the receiving groove 2132a, preventing the gun drill 20 from moving due to the impact force of grinding, and ensuring the smooth progress of the grinding process; moreover, the matching portion 2211 abuts and cooperates with the chip groove 22a, so that the matching portion 2211 and the chip groove 22a have sufficient contact area, which can absorb the vibration generated during the grinding process, protect the gun drill 20, and prevent the gun drill 20 from being deformed due to the huge impact force of grinding. The embodiment of the present application only needs to adapt the pressure block 220 according to the characteristics of the chip groove 22a of the gun drill 20. Compared with the related art that designs a whole jacket (covered outside the gun drill) specifically for the gun drill, the overall assembly structure is simple, and the manufacturing is convenient and easy, which can reduce the cost and is convenient for the operator to use.

[0080] like Figure 1 As shown, the chip groove 22a of the gun drill 20 is V-shaped, and the gun drill 20 includes a first conical surface (ie, a groove wall surface of the chip groove 22a) forming the chip groove 22a, and the angle formed by the first conical surface is a first angle.

[0081] Please continue to refer to Figure 5 The matching portion 2211 includes a second conical surface 2211a, and the second conical surface 2211a is used for positioning and matching with the first conical surface. The angle formed by the second conical surface 2211a is the second angle.

[0082] It can be understood that in order to firmly clamp the gun drill 20 in the sleeve 210, in one embodiment, the second angle is the same as the first angle, so that the second conical surface 2211a is fully adapted to the first conical surface, and the matching portion 2211 and the chip groove 22a have a larger contact area, so that the matching portion 2211 can be firmly abutted against the chip groove 22a under the locking force of the first locking member 230, and the clamping force can be better applied to the gun drill 20 to prevent the gun drill 20 from being moved due to the huge impact and vibration of the grinding block 110 during the grinding process.

[0083] Please combine Figure 4 And refer to Figure 7 , Figure 7 The second structural schematic diagram of the pressing block of the gun drill grinding device provided in the embodiment of the present application. The pressing block 220 includes a top surface 221a, and the top surface 221a is connected to the first locking member 230. It can be understood that the top surface 221a is the side of the pressing block 220 facing away from the gun drill 20.

[0084] For example, in order to make the first locking member 230 better apply the locking force to the pressing block 220, the top surface 221a is designed to be a plane. The top surface 221a is designed to be a plane so that the contact surface between the first locking member 230 and the pressing block 220 is a plane, so that the first locking member 230 and the top surface 221a can be better contacted to avoid slipping, and at the same time, the locking force applied by the first locking member 230 acts perpendicularly on the top surface 221a, which can prevent the first locking member 230 from bending and deforming.

[0085] It can be understood that, in order to reduce the vibration caused by the high-speed impact of the grinding block 110 during the grinding process of the gun drill 20, the pressing block 220 is mainly placed so that its matching portion 2211 is located in the chip groove 22a close to the cutting edge 23 of the gun drill 20, and the grinding block 110 of the grinding mechanism 100 is generally disc-shaped. In order to prevent the edge of the grinding block 110 from interfering with the pressing block 220 during the grinding process, sufficient avoidance space must be provided at the end of the pressing block 220 so that when the high-speed rotating grinding block 110 grinds the cutting edge 23 of the gun drill 20, the grinding block 110 will not hit the pressing block 220.

[0086] For example, please combine Figure 3 And continue to refer to Figure 7 The pressing block 220 also includes a first end surface 221b, which is connected to one end of the top surface 221a and faces the grinding mechanism 100. The distance from the first end surface 221b to the plane where the top surface 221a is located decreases from the end of the first end surface 221b close to the grinding mechanism 100 to the end far from the grinding mechanism 100.

[0087] The first end face 221b is the end face of the pressing block 220 facing the grinding mechanism 100. The first end face 221b is set to a distance from the first end face 221b to the plane where the top face 221a is located, which decreases from the end of the first end face 221b close to the grinding mechanism 100 to the end away from the grinding mechanism 100, that is, the first end face 221b is an inclined surface inclined upward, so a first avoidance notch 220a is formed on the side of the end of the pressing block 220 facing the grinding mechanism 100, that is, an avoidance space is formed at the end of the pressing block 220, which can avoid the grinding block 110 and prevent the grinding block 110 from interfering with the pressing block 220 during rotation, thereby ensuring smooth grinding of the gun drill 20.

[0088] Optional, please refer again Figure 7 The pressing block 220 further includes a second end face 221c, a third end face 221d, a first side face 221e and a second side face 221f. The second end face 221c is connected to the top face 221a and extends along the axial direction of the sleeve 210, and the third end face 221d is connected to the top face 221a and is arranged opposite to the second end face 221c. The first side face 221e is connected between the first end face 221b and the second end face 221c, and the distance from the first side face 221e to the grinding mechanism 100 decreases from the end where the first side face 221e is connected to the second end face 221c to the end away from the second end face 221c; the second side face 221f is connected between the first end face 221b and the third end face 221d, and the distance from the second side face 221f to the grinding mechanism 100 decreases from the end where the second side face 221f is connected to the third end face 221d to the end away from the third end face 221d.

[0089] Through the above arrangement, in this embodiment, the first end face 221b is close to the end of the second end face 221c, and the first side face 221e is connected to the second end face 221c, instead of directly connecting the first end face 221b and the second end face 221c, and the distance from the second side face 221f to the grinding mechanism 100 decreases from the end where the first side face 221e and the second end face 221c are connected to the end away from the second end face 221c, so that a second avoidance gap 220b is also formed on the side of the first avoidance gap 220a close to the second end face 221c. Similarly, a second side surface 221f is connected to the third end surface 221d at one end of the first end surface 221b close to the third end surface 221d, instead of directly connecting the third end surface 221d to the first end surface 221b, and the distance from the second side surface 221f to the grinding mechanism 100 decreases from the end where the second side surface 221f is connected to the third end surface 221d to the end away from the third end surface 221d, so that a third avoidance gap 220c is also formed on the side of the first avoidance gap 220a close to the third end surface 221d.

[0090] Then, by designing the above-mentioned first end face 221b, first side face 221e and second side face 221f, a first avoidance notch 220a, a second avoidance notch 220b and a third avoidance notch 220c can be formed on the side of the pressing block 220 close to the grinding mechanism 100, so that the end of the pressing block 220 and the two side areas close to the end of the pressing block 220 have avoidance space, which can further enhance the avoidance effect of the grinding block 110, especially when the grinding mechanism 100 drives the grinding block 110 to move and feed, further prevent the grinding block 110 from interfering with the pressing block 220 during rotation, and further ensure the smooth progress of the grinding process of the gun drill 20.

[0091] Optional, please combine Figure 2 And refer to Figure 5 The pressing block 220 includes a body 221 and a handle 222 connected to the body 221, and the handle 222 extends to the outside of the sleeve 210 along the axial direction of the sleeve 210. By setting the handle 222 connected to the main body of the pressing block 220, when the gun drill 20 is clamped, it is convenient to put the pressing block 220 into the sleeve 210, and the position of the main body of the pressing block 220 in the sleeve 210 can be manually adjusted by the handle 222, so that the main body is placed at a suitable position on the chip groove 22a, which is convenient for the operator to use.

[0092] Illustratively, the handle 222 may be configured to be cylindrical.

[0093] Optional, please refer to Figure 4 and Figure 6 The sleeve 210 includes a first cylinder 211 and a support block 213 connected to the inner wall of the first cylinder 211, and the support block 213 is provided with the above-mentioned receiving groove 2132a.

[0094] The support block 213 is used to form a receiving groove 2132a to support the gun drill 20 or other cutting tools. On the one hand, by supporting the gun drill 20 or other cutting tools through the support block 213, there is no need to machine the corresponding receiving groove 2132a in the first cylinder 211, which can simplify the processing of the first cylinder 211 and facilitate production. On the other hand, a plurality of support blocks 213 can be prefabricated, and the support blocks 213 can be differentially designed according to different types / specifications of cutting tools. When grinding different cutting tools, it is only necessary to replace the corresponding support block 213 and install it in the first cylinder 211, without replacing the entire sleeve 210, which is convenient for operation. At the same time, the sleeve 210 can clamp a variety of cutting tools not limited to the gun drill 20, which can improve the versatility of the clamping mechanism 200.

[0095] The first cylinder 211 is provided with a mounting groove extending along the axial direction of the first cylinder 211, and the support block 213 is installed in the mounting groove. Exemplarily, the support block 213 can be fixed in the mounting groove of the first cylinder 211 by fastening screws.

[0096] Optionally, in some embodiments, the support block 213 can also be slidably disposed in the mounting groove, so that the support block 213 can slide along the mounting groove and move relative to the first cylinder 211, so as to adjust the position of the gun drill 20 as a whole. When this method is adopted, when the gun drill 20 is subjected to grinding, the support block 213 can be clamped and fixed in the mounting groove under the locking force of the pressure block 220 and the first locking member 230 as a whole.

[0097] Please refer to Figure 8 , Figure 8 A schematic diagram of the structure of the support block 213 of the gun drill grinding device 10 provided in the embodiment of the present application. The receiving groove 2132a is a V-shaped groove, and the support block 213 includes a third conical surface 2132b forming the receiving groove 2132a, and the third conical surface 2132b is used to position and cooperate with the outer peripheral wall of the gun drill 20. By designing the receiving groove 2132a as a V-shaped conical surface, the gun drill 20 can be completely positioned under the abutment cooperation of the pressure block 220 to ensure that the gun drill 20 is firmly clamped on the support block 213 to prevent the gun drill 20 from moving. At the same time, the V-shaped conical surface is more easily adapted to gun drills 20 of different specifications and sizes, and only one support block 213 is required to clamp gun drills 20 of different sizes. Among them, the third conical surface 2132b forms a third angle, and the angle of the third angle can be the same as the angle of the second angle.

[0098] Optionally, in some embodiments, the angle of the third angle may be different from the angle of the second angle.

[0099] Please continue to refer to Figure 8 The support block 213 includes a first portion 2131 and a second portion 2132 connected to the first portion 2131. The first portion 2131 includes a first surface 2131a, the second portion 2132 protrudes from the first surface 2131a, and the receiving groove 2132a is disposed in the second portion 2132, and the bottom of the receiving groove 2132a is higher than the first surface 2131a.

[0100] The support block 213 is configured to have a first portion 2131 and a second portion 2132, wherein the second portion 2132 protrudes from the first surface 2131a, that is, the second portion 2132 is higher than the first portion 2131, and the bottom of the receiving groove 2132a is also higher than the first surface 2131a. When the gun drill 20 is placed in the receiving groove 2132a, the shank 22 is located in the receiving groove 2132a, and the shank 21 of the gun drill 20 is located in the first portion 2131, and the diameter of the shank 21 is often larger than the diameter of the shank 22. By adopting the above configuration of the support block 213, the shank 21 of the gun drill 20 can be avoided, ensuring that the shank 22 is in close contact with the third conical surface 2132b of the receiving groove 2132a formed by the support block 213.

[0101] The shape of the end of the blade 23 is complex. The end of the blade 13 usually has multiple cutting edges at different angles. In one embodiment, please refer to Fig. 9 , Fig. 9 for Figure 1 In the partial enlarged view at point A, the end of the blade 13 has a first cutting edge surface 23a, a second cutting edge surface 23b, a third cutting edge surface 23c, a fourth cutting edge surface 23d and a fifth cutting edge surface 23e. Each of the above-mentioned cutting edges of the blade 23 of the gun drill 20 is designed according to the processing requirements. The angle of each cutting edge surface is different. The wear condition of each cutting edge surface will affect the final processing effect of the hole. Therefore, each cutting edge surface needs to be sharpened after long-term use.

[0102] Therefore, the shape of the blade 23 is relatively complex, and the cutting edge surface on the blade 23 requires the gun drill 20 to be at a specific clamping angle in order to be ground by the grinding block 110, which requires that the clamping angle of the gun drill 20 can be adjusted. Figure 4 In one embodiment, in order to facilitate the adjustment of the clamping angle of the gun drill 20 relative to the grinding block 110, the sleeve 210 includes a first cylinder 211 and a second cylinder 212 sleeved on the first cylinder 211, and the first cylinder 211 can rotate relative to the second cylinder 212 under the action of external force.

[0103] It can be understood that the first cylinder 211 is disposed in the second cylinder 212 , and the first cylinder 211 rotates relative to the second cylinder 212 , which means that the first cylinder 211 rotates around the axis of the second cylinder 212 .

[0104] Specifically, when the blade 23 is required to be at a certain angle required for grinding during the grinding process, the sleeve 210 can be manually adjusted, and the first cylinder 211 can be manually driven to rotate around the axis of the second cylinder 212 to rotate the gun drill 20 to the required clamping angle.

[0105] It should be noted that the axial length of the second cylinder 212 is smaller than the axial length of the first cylinder 211 , so as to leave an escape space at at least one end of the second cylinder 212 for the first locking member 230 to be installed on the first cylinder 211 .

[0106] After the first cylinder 211 rotates relative to the second cylinder 212, in order to ensure that the gun drill 20 is maintained at a certain clamping angle during the grinding process, please continue to refer to Figure 4 The sleeve 210 further includes a second locking member 240 , which is penetrated through the second cylinder 212 and is used to abut against the first cylinder 211 . The second locking member 240 is used to provide a locking force to lock the second cylinder 212 in the second cylinder 212 .

[0107] Exemplarily, the second locking member 240 may be a locking screw. The outer peripheral wall of the second barrel 212 is provided with a second threaded hole 212a penetrating the wall thereof, and the second locking member 240 is penetrated through the second threaded hole 212a and threadedly engaged with the second threaded hole 212a. When the first barrel 211 is rotated to the clamping angle required by the gun drill 20, the second locking member 240 can be screwed to move the second locking member 240 inwardly to abut against the outer peripheral wall of the first barrel 211, and under the self-locking effect of the thread, the first barrel 211 is locked to prevent the first barrel 211 from rotating.

[0108] Optionally, to enhance the locking degree of the first cylinder 211 , a plurality of second locking members 240 may be provided. The plurality of second locking members 240 may be arranged at intervals along the axial direction of the second cylinder 212 , or may be arranged at intervals around the outer peripheral wall of the second cylinder 212 .

[0109] However, the first cylinder 211 is rotated to drive the gun drill 20 to rotate around its own axis, which can only change the angle of one direction of the cutting edge surface. Since the angles of the cutting edges are different, the above adjustment cannot meet the grinding requirements of multiple cutting edges. In order to further adjust the gun drill 20 to a suitable clamping angle so that the grinding block 110 can better grind multiple cutting edges, optionally, in one embodiment, please refer to Figure 2 and Figure 4 The gun drill grinding device 10 further includes a base 300 and a first rotating assembly 250. The base 300 is used as a bearing component of the gun drill grinding device 10. The base 300 is provided with a mounting surface 301 for supporting and connecting the grinding mechanism 100 and the clamping mechanism 200 to be mounted and fixed on the base 300.

[0110] The first rotating assembly 250 is disposed on the base 300 and connected to the sleeve 210 . The first rotating assembly 250 is used to drive the sleeve 210 to rotate around a first axis. The first axis α1 is parallel to the mounting surface 301 .

[0111] Please refer to Fig.10 , Fig.10 A schematic diagram of the first rotating assembly driving the sleeve to rotate provided in an embodiment of the present application. The first rotating assembly 250 drives the sleeve 210 to rotate around the first axis α1 parallel to the mounting surface 301, so that the sleeve 210 can achieve pitch rotation relative to the base 300, that is, the sleeve 210 can achieve pitch rotation relative to the grinding mechanism 100, and the clamping angle of the gun drill 20 can be further adjusted.

[0112] Optionally, the first rotating assembly 250 may include a first damping structure, and the first damping structure is used to provide a damping force, so that the first rotating assembly 250 can be maintained at a certain angle after rotation.

[0113] Optionally, in one embodiment, please continue to refer to Figure 2 and Figure 4 The gun drill grinding device 10 further includes a second rotating assembly 260 , which is disposed on the base 300 and connected to the first rotating assembly 250 . The second rotating assembly 260 is used to drive the first rotating assembly 250 to rotate around a second axis α2 , and the second axis α2 is perpendicular to the mounting surface 301 .

[0114] Specifically, the second rotating assembly 260 can be connected to the first rotating assembly 250 through the bracket 270. Exemplarily, the bracket 270 includes a supporting portion (indicated by a mark) and a connecting portion (indicated by a mark) connected to the supporting portion, the supporting portion extends in the vertical direction and is connected to the first rotating assembly 250 to support the entirety of the first rotating assembly 250 connected to the sleeve 210, and supports the entirety of the first rotating assembly 250 connected to the sleeve 210 at a position with a certain height relative to the base 300, so as to facilitate the pitch rotation of the sleeve 210. The connecting portion is used to play a connecting role, so that the entirety of the bracket 270, the first rotating assembly 250 and the sleeve 210 is connected to the second rotating assembly 260 through the connecting portion.

[0115] Then, by setting the second rotating assembly 260, the second rotating assembly 260 can drive the whole body connected with the first rotating assembly 250 and the sleeve 210 to rotate around the second axis α2, so that the sleeve 210 can also realize horizontal rotation relative to the base 300, thereby further adjusting the clamping angle of the gun drill 20. It can be understood that in this embodiment, by setting the first barrel 211 and the second barrel 212 to be rotatably connected, the first rotating assembly 250 to be connected with the sleeve 210, and the second rotating assembly 260 to be connected with the first rotating assembly 250, the first barrel 211 can be rotated along three axis directions, thereby flexibly adjusting the clamping angle of the gun drill 20 relative to the grinding block 110, so that the blade 23 of the gun drill 20 can be easily adjusted to the position required for grinding processing, and the grinding operation is convenient.

[0116] Optionally, the second rotating component 260 may include a second damping structure, and the second damping structure is used to provide a damping force, so that the second rotating component 260 can be maintained at a certain angle after rotation.

[0117] Specifically, in one embodiment, please refer to Fig.11 , Fig.11 This is a side view of the end of the gun drill blade provided in an embodiment of the present application. Taking the second cutting edge surface 23b at the end of the blade 23 as an example, when the second cutting edge surface 23b needs to be ground, the clamping angle of the gun drill 20 can be adjusted according to the following three steps to move the second cutting edge surface 23b to a suitable grinding position:

[0118] (1) Manually adjust the second rotating assembly 260, and drive the sleeve 210 to rotate horizontally 30° to the left around the second axis α2 through the second rotating assembly 260 (the left and right directions are referenced to the directions marked in the figure);

[0119] (2) Manually adjust the first rotating assembly 250, and drive the sleeve 210 to rotate upward by 20° around the first axis α1 through the first rotating assembly 250 (the up and down directions are based on the directions marked in the figure);

[0120] (3) Manually adjust the first cylinder 211 to drive the gun drill 20 to rotate around the axis of the first cylinder 211 through the first cylinder 211, so that the groove surface 22a1 of the chip groove 22a of the gun drill 20 close to the second cutting edge surface 23b rotates to form an angle of 2° with the horizontal plane.

[0121] Therefore, by adjusting according to the above steps, the second cutting edge surface 23b can be adjusted to be opposite to the end surface of the grinding block 110, which can facilitate the grinding block 110 to better grind the second cutting edge surface 23b.

[0122] For example, please refer to Figure 2 The grinding mechanism 100 includes a grinding block 110 , a driving motor 120 and a moving assembly 130 .

[0123] The drive motor 120 is connected to the grinding block 110 to drive the grinding block 110 to rotate. For example, the output shaft of the drive motor 120 is connected to the grinding block 110 to directly drive the grinding block 110 to rotate. Of course, in some optional embodiments, the output shaft of the drive motor 120 can also be connected to the grinding block 110 through a transmission member and / or a transmission.

[0124] The moving assembly 130 is connected to the driving motor 120 , and is used to drive the driving motor 120 to move, thereby driving the grinding block 110 to move, so that the grinding block 110 moves to a position close to the blade 23 of the gun drill 20 and realizes the grinding feed of the blade 23 of the gun drill 20 .

[0125] Please refer to Fig.12 and Fig.13 , Fig.12 A schematic structural diagram of a grinding mechanism of a gun drill grinding device provided in an embodiment of the present application from a first perspective, Fig.13 The moving assembly 130 may include a first linear slide rail 131 , a second linear slide rail 132 and a third linear slide rail 133 .

[0126] like Fig.13As shown, the first slider 1311 on the first linear slide 131 is connected to the drive motor 120. The first linear slide 131 is used to drive the drive motor 120 to move in a direction perpendicular to the mounting surface 301, that is, in a vertical direction, through the first slider 1311. This direction is defined as the Z-axis direction to adjust the height of the drive motor 120 (grinding block 110) relative to the mounting surface 301.

[0127] The second linear slide 132 is provided with a second slider 1321, and the first linear slide 131 is installed on the second slider 1321. The second linear slide 132 is used to drive the entirety of the first linear slide 131 connected to the drive motor 120 to move horizontally along a first direction parallel to the mounting surface 301 through the second slider 1321. The first direction is defined herein as the Y-axis direction, so that the drive motor 120 (grinding block 110) is close to or away from the gun drill 20 clamped on the clamping mechanism 200.

[0128] The third linear slide 133 is connected to the second linear slide 132. The third linear slide 133 is used to drive the second linear slide 132, the first linear slide 131 and the entire connected drive motor 120 to move horizontally along a second direction parallel to the mounting surface 301. The second direction is perpendicular to the first direction. The second direction is defined herein as the X-axis direction, so that the drive motor 120 (grinding block 110) can achieve grinding feed relative to the gun drill 20 on the clamping mechanism 200.

[0129] The first linear guide rail 131, the second linear guide rail 132 and the third linear guide rail 133 may be screw guide rails. It is understandable that since the grinding amount of different gun drills 20 needs to be determined according to the specific wear conditions of the respective blades 23, the first linear guide rail 131, the second linear guide rail 132 and the third linear guide rail 133 may be manually driven for the convenience of the operator.

[0130] Optional, please refer to Fig.12 The gun drill grinding device 10 may further include a camera 400 and a display 500 connected to the camera 400. The camera 400 is used to photograph the blade 23 of the gun drill 20 and transmit the photographs to the display 500. The display 500 may enlarge and display the image data (picture or video) photographed by the camera 400, so that the operator can clearly see the grinding condition of the blade 23, thereby facilitating the operation of the grinding mechanism 100. For example, the camera 400 and the display 500 may be mounted and fixed on the grinding mechanism 100.

[0131] The gun drill grinding device provided in the embodiment of the present application is introduced in detail above. The principle and implementation method of the present application are described in detail using specific examples herein. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A gun drill grinding device, characterized in that: The gun drill grinding device is used for grinding a gun drill, wherein the gun drill comprises a tool bar and a chip removal groove extending along the axial direction of the tool bar, and the gun drill grinding device comprises: A sleeve, provided with a receiving groove for placing the gun drill; A pressure block is disposed in the sleeve and opposite to the receiving groove, and a matching portion is provided on a side of the pressure block facing the receiving groove, and the matching portion is used to abut and match with the chip removal groove of the gun drill; and A first locking member has one end connected to the pressing block and the other end connected to the sleeve, and the first locking member is used to provide a locking force to clamp the gun drill between the pressing block and the accommodating groove.

2. The gun drill grinding device according to claim 1, characterized in that: The gun drill includes a first conical surface forming the chip removal groove, and the matching portion includes a second conical surface, and the second conical surface is used for positioning and matching with the first conical surface.

3. The gun drill grinding device according to claim 1, characterized in that: The gun drill grinding device also includes a grinding mechanism for grinding the gun drill; The pressing block comprises: a top surface connected to the first locking member; and The first end surface is connected to one end of the top surface and faces the grinding mechanism. The distance from the first end surface to the plane where the top surface is located decreases from the end of the first end surface close to the grinding mechanism to the end of the first end surface far from the grinding mechanism.

4. The gun drill grinding device according to claim 3, characterized in that: The pressing block also includes: A second end surface connected to the top surface and extending along the sleeve axis direction; a third end surface connected to the top surface and arranged opposite to the second end surface; A first side surface is connected between the first end surface and the second end surface, and a distance from the first side surface to the grinding mechanism decreases from an end where the first side surface is connected to the second end surface to an end away from the second end surface; and The second side surface is connected between the first end surface and the third end surface, and the distance from the second side surface to the grinding mechanism decreases from an end of the second side surface connected to the third end surface to an end away from the third end surface.

5. The gun drill grinding device according to any one of claims 1 to 4, characterized in that: The pressing block comprises a body and a handle connected to the body, and the handle extends to the outside of the sleeve along the axial direction of the sleeve.

6. The gun drill grinding device according to any one of claims 1 to 4, characterized in that: The sleeve includes a first cylinder and a support block connected to the inner wall of the first cylinder, the support block is provided with the accommodating groove, the support block includes a third conical surface forming the accommodating groove, and the third conical surface is used for positioning and matching with the outer peripheral wall of the gun drill.

7. The gun drill grinding device according to claim 6, characterized in that: The support block comprises: a first portion, the first portion comprising a first surface; and The second part is connected to the first part, the second part protrudes from the first surface, the receiving groove is arranged in the second part, and the groove bottom of the receiving groove is higher than the first surface.

8. The gun drill grinding device according to any one of claims 1 to 4, characterized in that: The sleeve comprises a first cylinder and a second cylinder sleeved on the first cylinder, and the first cylinder can rotate relative to the second cylinder under the action of external force; The gun drill grinding device further includes a second locking member, which is passed through the second cylinder and is used to abut against the first cylinder, and the second locking member is used to provide a locking force to lock the second cylinder in the second cylinder.

9. The gun drill grinding device according to any one of claims 1 to 4, characterized in that: The gun drill grinding device also includes: A base having a mounting surface; and The first rotating assembly is disposed on the base and connected to the sleeve. The first rotating assembly is used to drive the sleeve to rotate around a first axis, and the first axis is parallel to the installation surface.

10. The gun drill grinding device according to claim 9, characterized in that: The gun drill grinding device also includes a second rotating assembly, which is arranged on the base and connected to the first rotating assembly, and is used to drive the first rotating assembly to rotate around a second axis, and the second axis is perpendicular to the mounting surface.

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