PCD (Poly Crystal Diamond) guide mirror countersink

Abstract

The utility model belongs to the technical field of countersink cutters, and particularly relates to a PCD (Poly Crystal Diamond) guide mirror countersink cutter which comprises a cutter body, a cutter handle, a plurality of cutter blades, a guide head, a cooling assembly and a plurality of limiting assemblies, the cutter handle is axially connected to the cutter body, a mounting groove is formed in the end, away from the cutter handle, of the cutter body, a plurality of guide strips arranged in a radial shape are fixedly mounted in the mounting groove, the blades are movably mounted between every two adjacent guide strips respectively, and the limiting assemblies are arranged on the corresponding blades respectively. The multiple limiting assemblies are all connected with the knife body, and the guide head is detachably installed at the end, away from the knife handle, of the knife body. The PCD guide mirror face countersink is reasonable in design, simple in structure and good in applicability, meanwhile, the guide head and the blade can be disassembled, assembled and replaced according to needs, the PCD guide mirror face countersink has a good cooling function, the service life of the PCD guide mirror face countersink is greatly prolonged, and use convenience of the PCD guide mirror face countersink is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of countersinking cutters, in particular to a PCD guiding mirror surface countersinking cutter. Background Art

[0002] With the continuous development and progress of manufacturing technologies, the requirements for cutting tools are getting higher and higher. Especially in the field of high-precision machining, traditional cutting tools are difficult to meet the needs of modern manufacturing. Due to its excellent properties such as high hardness, high wear resistance and low thermal expansion coefficient, PCD materials are widely used in the field of high-precision cutting.

[0003] The traditional PCD guiding mirror surface countersinking cutter has an integrally formed structure. The service life of the blade is different from that of the tool shank, the tool body and the guiding head. However, after excessive wear occurs in any component, the whole needs to be replaced, which will cause waste of resources. At the same time, since the guiding head is not easy to replace, it is necessary to replace different PCD guiding mirror surface countersinking cutters according to the actual situation for operation, and the temperature will inevitably rise during the drilling process.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages mentioned in the above background art and propose a PCD guiding mirror surface countersinking cutter.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A PCD guiding mirror surface countersinking cutter, comprising a tool body, a tool shank, a plurality of blades, a guiding head, a cooling component and a plurality of limiting components;

[0007] The tool shank is axially connected to the tool body. An installation groove is opened at one end of the tool body away from the tool shank. A plurality of guiding strips arranged radially are fixedly installed in the installation groove. A plurality of blades are respectively movably installed between two adjacent guiding strips. A plurality of limiting components are respectively arranged on the corresponding blades, and a plurality of limiting components are all connected to the tool body. The guiding head is detachably installed at one end of the tool body away from the tool shank. A guiding hole is opened on the tool shank, the tool body and the guiding head. The cooling component is arranged on the tool shank and is adapted to the guiding hole. A plurality of connection holes communicating with the guiding hole are opened in the installation groove, and a plurality of connection holes are respectively located between two adjacent guiding strips. An installation screw hole is opened at one end of the tool shank away from the tool body.

[0008] Preferably, the limiting component includes a limiting block, a limiting pin and a spring. A plurality of mounting holes are radially formed in the tool body. A plurality of insertion holes are formed in one inner wall of the mounting groove. A limiting pin is fixedly mounted on the blade, and the limiting pin is inserted into the corresponding insertion hole. A limiting hole is radially formed in the limiting pin. A spring is fixedly mounted at a position of the mounting hole close to the axis of the tool body. A limiting block is fixedly mounted on the spring, and the limiting block is inserted into the limiting hole.

[0009] Preferably, the side of the limiting block away from the axis of the tool body is provided with a chamfer.

[0010] Preferably, the longitudinal section of the mounting hole is convex.

[0011] Preferably, the cooling component includes a rotating sleeve, a liquid inlet pipe and a plurality of communication holes. A plurality of communication holes are formed in the tool handle centered on the guiding hole, and the plurality of communication holes are all communicated with the guiding hole. The tool handle is rotatably and sealingly mounted. The plurality of communication holes are all communicated with the rotating sleeve, and a liquid inlet pipe is fixedly mounted on the rotating sleeve.

[0012] Preferably, the number of the guiding strips is six, and the numbers of the connecting holes, the mounting holes, the insertion holes, the blades, the limiting pins, the springs and the limiting blocks are the same as that of the guiding strips.

[0013] Preferably, a groove is formed in the guiding strip.

[0014] Preferably, an external thread sleeve is fixedly mounted at one end of the guiding head close to the tool body, and a limiting screw hole is formed at one end of the guiding hole away from the tool handle. The external thread sleeve is threadedly mounted in the limiting screw hole.

[0015] Preferably, the outer diameter of the rotating sleeve is the same as the diameter of the tool body.

[0016] The beneficial effects of the utility model are as follows:

[0017] The design of the PCD guiding mirror spot-facing tool is optimized and innovated in many aspects, significantly improving its performance and efficiency in practical applications. First of all, the layout of the guiding strips and blades arranged radially not only ensures the stability and accuracy of the cutting process, but also makes the replacement of the blades more convenient, greatly improving the working efficiency. In addition, the unique design of the limiting component, through the cooperation of the spring and the limiting block, ensures that the blade can still maintain stable cutting performance during high-speed rotation, further extending the service life of the blade.

[0018] Furthermore, the addition of the cooling component is another highlight of the design. By delivering coolant into the guide hole, the PCD guide mirror countersinking cutter can maintain a low operating temperature during long-term, high-intensity cutting, thereby avoiding blade damage or spring performance degradation due to overheating. This design not only improves the service life of the tool, but also ensures processing quality and efficiency.

[0019] In addition, the guide head is installed by thread, which is not only easy to replace, but also can flexibly select the appropriate guide head according to different processing requirements, which improves the applicability and flexibility of the PCD guide mirror countersinking cutter. At the same time, the groove design on the guide strip also provides convenience for the operator during the blade disassembly process, reducing the blade damage caused by improper disassembly.

[0020] In summary, the PCD guided mirror countersinking cutter has reached a high level in terms of structural design, function realization and user experience, and has high practical value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the PCD guided mirror countersinking cutter proposed by the utility model;

[0023] Figure 2 This is a schematic cross-sectional structure diagram of the PCD guided mirror countersinking cutter proposed in the utility model;

[0024] Figure 3 It is a partial three-dimensional structural schematic diagram of the PCD guided mirror countersinking cutter proposed by the utility model;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the blade and the limiting component part of the PCD guided mirror countersinking cutter proposed by the utility model;

[0026] Figure 5 This is a three-dimensional structural schematic diagram of the guide head and the outer thread sleeve part proposed by the utility model.

[0027] In the figure: 1. blade; 11. guide strip; 111. groove; 12. connecting hole; 13. plug-in hole; 14. mounting hole; 2. handle; 3. blade; 4. guide hole; 41. connecting hole; 42. rotating sleeve; 43. liquid inlet pipe; 5. limit pin; 51. limit block; 52. spring; 6. guide head; 61. external thread sleeve. Detailed implementation manners

[0028] The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0029] Refer to Figures 1-5, the PCD-guided mirror-facing countersinking tool includes a tool body 1, a tool handle 2, multiple cutting blades 3, and a guide head 6. The tool handle 2 is axially connected to the tool body 1. An installation groove is provided at one end of the tool body 1 away from the tool handle 2. Multiple guide bars 11 are fixedly installed in the installation groove. The multiple guide bars 11 are arranged radially around the axis of the tool body 1. The multiple cutting blades 3 are respectively movably installed between two adjacent guide bars 11. To ensure the stability of the cutting blade 3 when it rotates rapidly with the tool body 1, both sides of the cutting blade 3 are kept in contact with the corresponding guide bars 11. Multiple installation holes 14 are radially provided on the tool body 1. Multiple insertion holes 13 are provided on one inner wall of the installation groove. A limit pin 5 is fixedly installed on the cutting blade 3. The limit pin 5 is inserted into the corresponding insertion hole 13. A limit hole is radially provided on the limit pin 5. A spring 52 is fixedly installed at a position of the installation hole 14 close to the axis of the tool body 1. A limit block 51 is fixedly installed on the spring 52. The limit block 51 is inserted into the limit hole, which can limit and fix the cutting blade 3, thereby ensuring the stability of the cutting blade 3 during the working process. At the same time, to facilitate controlling the compression of the spring 52 by the limit block 51 when the limit pin 5 is inserted into the insertion hole 13 and quickly limiting and fixing the limit pin 5 under the pushing force of the reaction force of the spring 52 when the limit hole and the limit block 51 are on the same axis, the side of the limit block 51 away from the axis of the tool body 1 is provided with a chamfer. The guide head 6 is detachably installed at one end of the tool body 1 away from the tool handle 2. A guide hole 4 is provided on the tool handle 2, the tool body 1, and the guide head 6. Multiple connection holes 12 communicating with the guide hole 4 are provided in the installation groove. The multiple connection holes 12 are respectively located between two adjacent guide bars 11. Multiple communication holes 41 are provided on the tool handle 2 centered on the guide hole 4. The multiple communication holes 41 are all communicated with the guide hole 4. A rotating sleeve 42 is rotatably and sealedly installed on the tool handle 2. The multiple communication holes 41 are all communicated with the rotating sleeve 42. A liquid inlet pipe 43 is fixedly installed on the rotating sleeve 42, which is convenient for delivering coolant into the guide hole 4. Under the cooperation of the guide hole 4 and the connection holes 12, the coolant cools the multiple cutting blades 3 and the tool body 1, thereby improving the service life of the cutting blade 3 and avoiding the overheating of the spring 52 from affecting its elastic performance. At the same time, to ensure that the coolant can better cool the cutting blade 3, multiple diversion grooves (not shown in the figure) for guiding the coolant can be provided on the side of the cutting blade 3. The number of guide bars 11 is six, and the numbers of the connection holes 12, installation holes 14, insertion holes 13, cutting blades 3, limit pins 5, springs 52, and limit blocks 51 are the same as the number of guide bars 11. An installation screw hole is provided at one end of the tool handle 2 away from the tool body 1.

[0030] In this embodiment, to prevent the spring 52 from being damaged when the centrifugal force on the limit block 51 is too large during the rapid rotation of the tool body 1, the longitudinal section of the installation hole 14 is convex.

[0031] In this embodiment, in order to facilitate the operator to use tools such as pliers to assist in disassembling the blade 3 when the disassembly process of the blade 3 is blocked, and at the same time to avoid damage to the blade 3 caused by the tools used, a groove 111 is provided on the guide strip 11.

[0032] In this embodiment, in order to facilitate the disassembly, installation and replacement of the guide head 6, an external thread sleeve 61 is fixedly installed at one end of the guide head 6 close to the tool body 1. A limit screw hole is provided at one end of the tool body 1 away from the tool handle 2 where the guide hole 4 is located. The external thread sleeve 61 is threadedly installed in the limit screw hole.

[0033] In this embodiment, in order to avoid the rotating sleeve 42 affecting the drilling depth of the PCD guide mirror countersinking tool, the outer diameter of the rotating sleeve 42 is kept the same as the diameter of the tool body 1.

[0034] In this embodiment, in order to ensure that the guide 6 will not have a wire withdrawal phenomenon when the tool body 1 rotates rapidly, the screwing direction of the external thread sleeve 61 and the limit screw hole is the same as the rotation direction of the tool body 1.

[0035] Working principle:

[0036] During the use process, the operator first inserts the blade 3 between two adjacent guide strips 11, aligns the limit pin 5 on the blade 3 with the insertion hole 13 on the tool body 1, and then gently pushes the blade 3 to insert the limit pin 5 into the insertion hole 13. During the insertion of the limit pin 5, the limit pin 5 meets the limit block 51 in the installation hole 14. Since the side of the limit block 51 away from the axis of the tool body 1 is provided with a chamfer, the limit block 51 will slide along the rounded part of the limit pin 5 and at the same time compress the spring 52. When the limit hole and the limit block 51 are on the same axis, under the pushing force of the reaction force of the spring 52, the limit block 51 will quickly insert into the limit hole to complete the quick limit fixation of the blade 3. At this time, the blade 3 is stably fixed between two adjacent guide strips 11, and the limit block 51 can be completely inserted into the limit hole under the action of centrifugal force in the working state, thereby ensuring the stability of the blade 3 during the working process.

[0037] When the blade 3 needs to be disassembled, the operator can use tools such as pliers to assist in disassembling the blade 3 through the groove 111 provided on the guide strip 11. The design of the groove 111 not only provides convenience for the operator, but also avoids damage to the blade 3 caused by the tools used.

[0038] When it is necessary to convey the coolant into the guiding hole 4, the operator can convey the coolant into the rotating sleeve 42 through the liquid inlet pipe 43. Since the plurality of communication holes 41 are all communicated with the rotating sleeve 42, the coolant will enter the guiding hole 4 through the communication holes 41. With the cooperation of the guiding hole 4 and the connecting hole 12, the coolant will provide a cooling effect on the plurality of blades 3 and the tool body 1. This can not only improve the service life of the blades 3, but also prevent the spring 52 from overheating and affecting its elastic performance.

[0039] In addition, when the guiding head 6 needs to be replaced due to wear or other reasons, the operator only needs to screw the guiding head 6 off the tool body 1 and then install a new guiding head 6. Since an external thread sleeve 61 is fixedly installed at one end of the guiding head 6 close to the tool body 1, and a limit screw hole is provided at one end of the tool body 1 away from the tool handle 2, and the external thread sleeve 61 is threadedly installed in the limit screw hole, the disassembly and assembly process of the guiding head 6 is very convenient.

[0040] In summary, the PCD guiding mirror spot-facing tool proposed by the present utility model not only has a reasonable structural design, but also has complete functions and is convenient to use. It shows high practicality and flexibility in aspects such as the fixing and disassembly of the blades and the conveyance of the coolant.

[0041] The above has introduced the PCD guiding mirror spot-facing tool provided by the present utility model in detail. Specific embodiments are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. PCD guided mirror countersink, characterized by: It comprises a blade body (1), a blade handle (2), a plurality of blades (3), a guide head (6), a cooling component and a plurality of limit components; The handle (2) is axially connected to the blade (1); an installation groove is provided at one end of the blade (1) away from the handle (2); a plurality of radially arranged guide strips (11) are fixedly installed in the installation groove; a plurality of blades (3) are movably installed between two adjacent guide strips (11); a plurality of limit assemblies are respectively arranged on corresponding blades (3); the plurality of limit assemblies are connected to the blade (1); the guide head (6) is detachably installed at one end of the blade (1) away from the handle (2); a same guide hole (4) is provided on the handle (2), the blade (1) and the guide head (6); the cooling assembly is provided on the handle (2) and is adapted to the guide hole (4); a plurality of connection holes (12) connected to the guide hole (4) are provided in the installation groove; the plurality of connection holes (12) are respectively located between two adjacent guide strips (11); and a mounting screw hole is provided at one end of the handle (2) away from the blade (1).

2. The PCD guided mirror countersink according to claim 1, characterized in that: The limiting assembly comprises a limiting block (51), a limiting pin (5) and a spring (52); a plurality of mounting holes (14) are radially provided on the blade (1); a plurality of plug holes (13) are provided on an inner wall of one side of the mounting groove; a limiting pin (5) is fixedly provided on the blade (3); the limiting pin (5) is plugged into the corresponding plug hole (13); a limiting hole is radially provided on the limiting pin (5); a spring (52) is fixedly provided at a position of the mounting hole (14) close to the axis of the blade (1); a limiting block (51) is fixedly provided on the spring (52); and the limiting block (51) is plugged into the limiting hole.

3. The PCD guided mirror countersink according to claim 2, characterized in that: The side of the limiting block (51) away from the axis of the blade body (1) is arranged with a rounded corner.

4. The PCD guided mirror countersink according to claim 2, characterized in that: The longitudinal section of the mounting hole (14) is convex.

5. The PCD guided mirror countersink according to claim 1, characterized in that: The cooling component comprises a rotating sleeve (42), a liquid inlet pipe (43) and a plurality of connecting holes (41); the tool handle (2) is provided with a plurality of connecting holes (41) based on the guide hole (4) as the center; the plurality of connecting holes (41) are all connected to the guide hole (4); the tool handle (2) is sealed and rotatably mounted; the plurality of connecting holes (41) are all connected to the rotating sleeve (42); and the liquid inlet pipe (43) is fixedly mounted on the rotating sleeve (42).

6. The PCD guided mirror countersink according to claim 2, characterized in that: The number of the guide bars (11) is six, and the number of the connecting holes (12), the mounting holes (14), the plug holes (13), the blades (3), the limit pins (5), the springs (52) and the limit blocks (51) are the same as the number of the guide bars (11).

7. The PCD guided mirror countersink according to claim 1, characterized in that: The guide strip (11) is provided with a groove (111).

8. The PCD guided mirror countersink according to claim 1, characterized in that: An outer thread sleeve (61) is fixedly mounted on one end of the guide head (6) close to the blade body (1), and a limiting screw hole is provided on the end of the blade body (1) away from the handle (2), and the outer thread sleeve (61) is threadedly mounted in the limiting screw hole.

9. The PCD guided mirror countersink according to claim 5, characterized in that: The outer diameter of the rotating sleeve (42) is consistent with the diameter of the blade body (1).

Images