Cutter capable of coring detection

Abstract

The utility model relates to the technical field of cutters, in particular to a cutter capable of coring detection, which comprises a rotatable drill bit body, the drill bit body can drill a workpiece in the axial direction of the drill bit body, the lower half part of the drill bit body is of a cone structure, and a machining surface is transversely formed at the bottom of the cone structure. A cutter structure is arranged on the inclined face of the cone structure along the generatrix of the cone structure and comprises a plurality of drilling blades arranged at intervals. A core hole for containing a sample core is formed in the drill bit body in the axial direction, and the bottom of the core hole communicates with the machining face. When a workpiece is drilled, the surface of the workpiece is drilled to form a groove structure, during drilling, due to the fact that the core hole for containing the sample core is formed in the drill bit body in the axial direction, one part of the workpiece cannot be cut off under the action of the core hole and is continuously matched with the core hole, the sample core capable of being detected is formed, and the part located in the workpiece can be visually and conveniently detected; and while drilling, a sample core for detection can be reserved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a cutting tool capable of core removal and detection. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling. When working, each tooth cuts off the workpiece's allowance intermittently in sequence. The milling cutter is mainly used to process planes, steps, grooves, formed surfaces and cut off workpieces on milling machines. The milling cutter disc is also a tool used to mill the plane of the workpiece during machining. Because it is larger than ordinary milling cutters and shaped like a disc, it is called a milling cutter disc. For disc milling cutters, it is very convenient to mill deep grooves and the efficiency is very high. It can be used on many large equipment. Due to the long-term use of the milling cutter disc, the milling cutter also needs to be replaced to ensure that its working efficiency will not be reduced.

[0003] In the prior art, the milling cutter often needs to be replaced during the use of the milling cutter disc, and the milling cutter replacement process usually takes a long time, affecting the normal use of the milling cutter disc and further reducing the practicality of the milling cutter disc.

[0004] Therefore, a milling cutter disc that is convenient for replacing milling cutters is needed to solve the problem in the prior art that it takes a long time to replace milling cutters with milling cutter discs.

[0005] Among them, the utility model with application number CN202323596205.4 discloses a milling cutter disc that is convenient for replacing milling cutters, belongs to the technical field of milling cutter discs, and addresses the problem that it takes a long time to replace milling cutters in milling cutter discs. It includes mounting grooves, which are all arranged on the outer wall of the milling cutter disc body and are distributed in a ring, and the middle of the inner wall of the mounting groove is provided with a socket, and the inner side of the socket is slidably connected with a connecting rod, and the end of the connecting rod away from the milling cutter disc body is fixed with a clamping block, and the clamping block is fixed with a spring on the outer periphery of the wall of the one side of the milling cutter disc body; when the blade in the milling cutter disc body needs to be replaced, the utility model first rotates the screw, and the screw moves upward inside the threaded hole during the rotation process, thereby pulling the screw out from the positioning hole, and after the fixation of the connecting rod is released, the connecting rod is pulled out from the inside of the socket under the elastic force of the spring, so that the clamping block moves outward and the milling cutter body is taken out from the inside of the positioning groove, completing the milling cutter disassembly operation, reducing the difficulty of milling cutter disassembly and improving the efficiency of milling cutter replacement.

[0006] When processing large workpieces, due to the significant difference between the surface and internal materials of the processed material, it is necessary to remove the internal material from the center of the large workpiece for inspection. Since most existing cutting tools have blades installed on the cutter head, the large workpiece will be processed into a groove-like structure during drilling and cutting. It is impossible to remove the center material of the large workpiece for inspection, and the workpiece can only be directly tested with the inspection equipment, which greatly reduces efficiency. Utility Model Content

[0007] The purpose of the utility model is to provide a tool capable of core removal and detection to address the deficiencies of the prior art.

[0008] To achieve the above purpose, the technical solution of the utility model is as follows:

[0009] A tool capable of core extraction and detection comprises a rotatable drill body capable of drilling a workpiece by moving along its axial direction, wherein the lower half of the drill body is a conical structure, characterized in that a machining surface is formed laterally on the bottom of the conical structure, a knife structure is arranged along the generatrix of the inclined surface of the conical structure, and the knife structure comprises a plurality of drilling blades arranged at intervals; a core hole for accommodating a sample core is formed along the axial direction of the drill body, and the bottom of the core hole is connected to the machining surface.

[0010] Furthermore: the knife structure also includes a mounting bar arranged along the generatrix direction of the cone structure, and the mounting bar is integrally formed and connected to the cone structure.

[0011] Furthermore: a plurality of tool grooves are formed at intervals along the length direction of the mounting bar, and the drilling blades are detachably mounted in the tool grooves.

[0012] Furthermore: the plurality of drilling blades are arranged at an angle, and the arrangement direction is parallel to the mounting bar.

[0013] Further: the bottom of the drilling blade located at the bottom of the mounting bar is parallel to the processing surface.

[0014] Furthermore: there are two mounting bars, and the angle between the two mounting bars is 180°.

[0015] Furthermore: the knife structure also includes an inner mounting hole opened in the knife groove, the drilling blade is formed with an outer mounting hole matching the inner mounting hole, and a locking screw is connected between the knife groove and the drilling blade through the inner mounting hole and the outer mounting hole.

[0016] Furthermore: a clamping handle is connected to the top of the drill body.

[0017] The beneficial effects of the present invention are as follows: when drilling a workpiece, the drill body rotates, and the tool continuously approaches the workpiece along its axial direction. The knife structure located at the lower half of the drill body contacts the workpiece, and a groove structure will be drilled on the surface of the workpiece. During drilling, since the drill body is formed with a core hole for accommodating the sample core along the axial direction, a part of the workpiece will not be cut off under the action of the core hole, and will continuously cooperate with the core hole to form a sample core that can be detected. The part located inside the workpiece can be intuitively and conveniently detected, and the sample core for detection can be retained while drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the tool structure.

[0019] Figure 2 This is a schematic diagram of the tool structure, with one of the drilling inserts hidden.

[0020] Reference numerals include:

[0021] 1-Drill body,

[0022] 11-cone structure, 12-processing surface, 13-clamping handle, 14-core hole,

[0023] 2-knife structure, 21-drilling blade, 22-mounting bar, 23-knife groove, 24-inner mounting hole,

[0024] 25-External mounting hole, 26-Locking screw. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-2 As shown, a tool capable of coring inspection includes a drill body 1 capable of drilling a workpiece while moving axially. The lower half of the drill body 1 comprises a conical structure 11, with a machining surface 12 formed transversely at the bottom of the conical structure 11. A cutter structure 2 is arranged along the generatrix of the conical structure 11's inclined surface. The cutter structure 2 comprises a plurality of spaced-apart drilling blades 21. A core hole 14 is formed axially in the drill body 1 to accommodate a sample core. The bottom of the core hole 14 communicates with the machining surface 12. During drilling, the drill body 1 rotates, and the tool continuously approaches the workpiece axially. The cutter structure 2 located in the lower half of the drill body 1 contacts the workpiece, drilling a groove structure on the workpiece surface. During drilling, because the core hole 14 is formed axially in the drill body 1 to accommodate the sample core, a portion of the workpiece is not cut off by the core hole 14 and continuously engages with the core hole 14, thereby forming a detectable sample core. The portion located within the workpiece is visually accessible for inspection, and the sample core for inspection is retained during drilling.

[0027] In addition, in one embodiment, when the material inside the workpiece does not need to be inspected, a cylindrical bar of corresponding size can be inserted into the core hole 14 so that the hole at the bottom of the machining surface 12 is blocked to form a complete machining surface 12, and no sample core will be retained when drilling the workpiece.

[0028] Specific blade structure 2: The blade structure 2 also includes a mounting bar 22 arranged along the generatrix of the pyramidal structure 11. The mounting bar 22 is integrally connected to the pyramidal structure 11. Multiple slots 23 are formed at intervals along the length of the mounting bar 22, and the drilling blade 21 is removably mounted in the slots 23. In this embodiment, the drilling blade 21 is fixed by the slots 23 located in the mounting bar 22. When the drill body 1 rotates, the mounting bar 22 arranged along the generatrix cooperates with the drilling blade 21 to drill the workpiece, thereby improving processing stability.

[0029] Multiple drilling blades 21 are arranged at an angle, parallel to the mounting bar 22. After being mounted on the mounting bar 22 via the tool slots 23, the multiple drilling blades 21 cooperate with the mounting bar 22 to drill a frustoconical groove into the workpiece. This also reduces cutting force: The tilted drilling blades 21 alter the contact pattern between the cutting edge and the workpiece, making the cutting process smoother and effectively reducing cutting force. Lower cutting force reduces the load on the drill bit and machine tool, extending the drill bit's service life and improving machining accuracy. This advantage is particularly pronounced when machining harder materials.

[0030] Furthermore, the drilling process generates a large amount of chips. The tilted arrangement of the drilling insert 21 facilitates the discharge of chips from the hole in a specific direction. Effective chip removal prevents chip accumulation within the hole, reduces scratches on the machined surface, and improves the surface quality of the hole. Furthermore, smooth chip removal reduces overheating of the drill bit caused by chip blockage, reduces wear and damage to the drill bit, and ensures continuous machining.

[0031] Improved drill bit stability: The tilted drilling insert 21 enhances the overall stability of the drill bit. During the drilling process, the drill bit is subject to various forces, including cutting, axial, and radial forces. The tilted arrangement of the drilling insert 21 better distributes and balances these forces, reducing drill bit vibration and deflection, thereby improving drilled hole straightness and positional accuracy. Drill bit stability is particularly important in deep hole drilling or other drilling operations requiring high precision.

[0032] Increased service life of the drilling insert 21: Due to reduced cutting forces and improved chip removal, the wear of the drilling insert 21 is reduced, thus extending its service life. In addition, the inclined drilling insert 21 applies force more evenly to the cutting edge during cutting, thus avoiding localized excessive wear. This not only reduces the frequency of replacement of the drilling insert 21, lowering processing costs, but also improves production efficiency.

[0033] Reduced power consumption: The tilted drilling insert 21 cuts into the workpiece more efficiently, reducing energy waste and thus lowering the machine's power consumption. This is crucial for lower-power machines or those with strict energy requirements, allowing machining tasks to be completed without increasing equipment investment.

[0034] The bottom of the drilling blade 21 at the bottom of the mounting bar 22 is parallel to the processing surface 12. In this embodiment, the horizontal arrangement of the drilling blade 21 at the bottom ensures that the bottom of the groove formed is flat and smooth when drilling the workpiece, thereby improving the forming quality.

[0035] Furthermore, during the drilling process, the transverse arrangement of the drilling inserts 21 allows for a more even distribution of cutting forces in the circumferential direction. As the drilling inserts 21 laterally penetrate the workpiece, the radial components of the cutting forces balance each other, reducing radial deviation of the drill bit. For example, when drilling large-diameter holes, this even distribution of cutting forces helps maintain drill bit stability, resulting in a more rounded hole and reducing aperture errors.

[0036] The transverse arrangement of the drilling inserts 21 also stabilizes the axial cutting force. This is because the cutting edge can remove material more steadily when cutting laterally, avoiding drill bit runout caused by sudden changes in axial cutting force. This is very important for improving the straightness and surface quality of the drilled hole. In deep hole drilling, in particular, stable axial cutting force can reduce drill hole deflection.

[0037] There are two mounting bars 22, and the angle between the two mounting bars 22 is 180°. The double mounting bars 22 form an axisymmetrically arranged tool structure 2, which further improves the efficiency and the chip removal during drilling.

[0038] Preferably, the knife structure 2 also includes an inner mounting hole 24 formed in the knife groove 23, and the drilling blade 21 is formed with an outer mounting hole 25 that matches the inner mounting hole 24. The knife groove 23 and the drilling blade 21 are connected by a locking screw 26 through the inner mounting hole 24 and the outer mounting hole 25; when installing the drilling blade 21, the outer mounting hole 25 of the drilling blade 21 and the inner mounting hole 24 of the knife groove 23 are fitted together and coaxially aligned, and then the locking screw 26 is inserted into the outer mounting hole 25 and the inner mounting hole 24 to achieve a locking connection; when the drilling blade 21 is severely worn or fails, the drilling blade 21 can be quickly removed and replaced.

[0039] A clamping handle 13 is connected to the top of the drill body 1, and the drill body 1 can be mounted on a corresponding drilling device through the clamping handle 13 to control the movement of the tool.

[0040] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance its performance unprecedented in the past and become a product with great practical value.

[0041] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A tool capable of coring inspection, comprising a rotatable drill body capable of drilling a workpiece by moving along its axial direction, wherein the lower half of the drill body is a cone-shaped structure, and characterized in that: A processing surface is formed laterally at the bottom of the cone structure, and a knife structure is arranged along the main line of the inclined surface of the cone structure, which includes a plurality of drilling blades arranged at intervals; a core hole for accommodating the sample core is formed axially on the drill body, and the bottom of the core hole is connected to the processing surface.

2. A core-detectable tool according to claim 1, characterized in that: The knife structure further comprises a mounting bar arranged along the generatrix direction of the cone structure, and the mounting bar is integrally formed and connected to the cone structure.

3. The core-detectable tool according to claim 2, characterized in that: The mounting bar is formed with a plurality of tool grooves at intervals along the length direction, and the drilling blades are detachably mounted in the tool grooves.

4. The core-detectable tool according to claim 3, characterized in that: The plurality of drilling inserts are arranged at an angle, and the arrangement direction is parallel to the mounting bar.

5. The core-detectable tool according to claim 3, characterized in that: The bottom of the drilling blade located at the bottom of the mounting bar is parallel to the processing surface.

6. The core-detectable tool according to claim 3, characterized in that: There are two mounting bars, and the angle between the two mounting bars is 180°.

7. The core-detectable tool according to claim 6, characterized in that: The knife structure also includes an inner mounting hole opened in the knife groove, the drilling blade is formed with an outer mounting hole matching the inner mounting hole, and a locking screw is connected between the knife groove and the drilling blade through the inner mounting hole and the outer mounting hole.

8. A core-detectable tool according to any one of claims 1 to 7, characterized in that: The top of the drill body is connected with a clamping handle.

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