Diamond drill bit tapper capable of positioning and automatically discharging chips

Abstract

A diamond drill bit tapper capable of positioning and automatically discharging chips comprises a drill body, a first screw and a drill bit working face, the first screw is connected to the end of the drill body in a threaded mode, the drill bit working face is fixedly installed at the front end of the drill body, a drill wall is arranged at the front end of the drill bit working face, and a second screw is connected to the inner side of the drill body in a threaded mode. The diamond drill bit tapper capable of positioning and automatically discharging chips mainly comprises a tapper body, a center drill and a spring, when the diamond drill bit tapper is used, a phi 6 alloy triangular drill bit is used for finding out the center position where a hole needs to be formed in the surface of a stone, then the triangular drill bit is used for forming a phi 6 center hole, and then the tapper is used for forming the hole in the center position; and the spring pops up residual pieces after tapping, so that the device is efficient, accurate and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to diamond drill bit trepanning device technical field especially relates to a kind of diamond drill bit trepanning device of positioning can automatic chip removal. BACKGROUND

[0002] In the field of building installation, interior decoration and stone processing, the trepanning operation of hard materials such as ceramic tiles, marbles and rock plates is a high-frequency process, and its position accuracy directly affects equipment installation, structural stability and decorative effect. With the increasing demand for customization and refinement in modern decoration (such as embedded bathroom hardware and customized furniture installation), high-precision trepanning is in great demand. However, these materials are hard and brittle, and the positioning deviation or vibration during trepanning can cause edge collapse and cracks, resulting in material waste and rework risk. In addition, the thickness and surface characteristics of different materials (such as ceramic tile glaze and stone texture) further increase the difficulty of positioning, and traditional tools cannot meet the diversified needs.

[0003] For example, a diamond drill bit trepanning device with the authorization announcement number CN222003988U integrates the functions of trepanning and reaming into one drill bit, and can trepan different sizes of holes, improving the efficiency of glass trepanning and reducing enterprise costs.

[0004] However, current diamond drill bit trepanning devices rely heavily on manual visual alignment or oblique side contact positioning, which can cause the drill bit to tilt due to hand shaking or uneven material surface, resulting in oval holes or edge cracks.

[0005] Traditional drill bits directly impact the surface of the material, lacking a buffer guide mechanism, which can easily scratch the surface of glazed ceramic tiles, affecting the aesthetic appearance.

[0006] Debris is only removed by centrifugal force of drill bit rotation or manual knocking, and residues can be stuck in the inner wall of the drill bit, requiring repeated disassembly and cleaning, increasing the complexity of operation. SUMMARY

[0007] The utility model solves the above-mentioned problems of the prior art and provides a diamond drill bit trepanning device that can be positioned and automatically chip removal, which can achieve the functions and effects of axial forced guidance, flexible contact damage prevention design and efficient active chip removal.

[0008] The utility model solves the technical problems by adopting the following technical solutions:

[0009] A diamond drill bit trepanning device that can be positioned and automatically chip removal is designed, which includes a drill body, a first screw and a drill bit working surface. The first screw is threadedly connected to the end of the drill body. The drill bit working surface is fixedly installed at the front end of the drill body. The front end of the drill bit working surface is provided with a drill wall. The inner side of the drill body is threadedly connected with a second screw.

[0010] Further improvement, the inner side of the drill body is connected with the brazing spring center positioning drill with cooling function through the second screw thread, the outer side of the brazing spring center positioning drill with cooling function is connected with the brazing spring center positioning drill matched spring with cooling function, the outer side of the brazing spring center positioning drill with cooling function is movably sleeved with the sponge, and the sponge is arranged on the inner side of the brazing spring center positioning drill matched spring with cooling function.

[0011] Further improvement, the inner side of the drill body is connected with the brazing spring center positioning drill through the second screw thread, and the outer side of the brazing spring center positioning drill is connected with the brazing spring center positioning drill matched spring.

[0012] Further improvement, the inner side of the drill body is connected with the brazing spring center positioning drill through the second screw thread, and the outer side of the brazing spring center positioning drill is connected with the brazing spring center positioning drill matched spring.

[0013] Further improvement, the rear side of the drill body is fixedly connected with the connecting shaft, and the other end of the connecting shaft is fixedly connected with the drill rig equipment output shaft.

[0014] Further improvement, the edge of the drill wall is fixedly provided with a plurality of knife edges, and the plurality of knife edges are uniformly distributed at equal distances.

[0015] The utility model have beneficial effect is: the utility model discloses, mainly by the trepanning device, the center drill, spring three parts constitute, use first φ6 alloy triangle drill bit in stone material surface finds out the center position that wants to trepan, then uses triangle drill bit first to open φ6 center hole, subsequently trepanning device will have center position and carry out trepanning, and the spring will pop out the residual piece after trepanning, high efficiency is accurate, and practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the front view cross section schematic diagram of brazing spring center positioning drill with cooling function;

[0018] Figure 3 It is the cross section schematic diagram of brazing spring center positioning drill with cooling function;

[0019] Figure 4 It is the front view cross section schematic diagram of brazing spring center positioning drill;

[0020] Figure 5 It is the cross section schematic diagram of brazing spring center positioning drill.

[0021] Explanation of reference signs: In the figure: 1, drill body, 2, first screw, 3, second screw, 4, brazing spring centering drill with cooling function, 5, brazing spring centering drill matching spring with cooling function, 6, cutting edge, 7, drill wall, 8, drill working surface, 9, sponge, 10, brazing spring centering drill, 11, brazing spring centering drill matching spring, 12, support ring, 13, connecting shaft, 14, through hole. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings: EMBODIMENT

[0023] Refer to the drawings Figures 1-5 In this embodiment, a diamond drill bit hole opener capable of positioning and automatically removing chips comprises a drill body 1, a first screw 2 and a drill working surface 8. The first screw 2 is threadedly connected to the end of the drill body 1. The drill body 1 is the core main body structure of the diamond drill bit hole opener. The drill working surface 8 mainly realizes specific working functions by attaching diamond sand to the outer layer. The drill working surface 8 is fixedly installed at the front end of the drill body 1. The front end of the drill working surface 8 is provided with a drill wall 7. The inner side of the drill body 1 is threadedly connected with a second screw 3. The first screw 2 and the second screw 3 are two pieces in total, which are used to connect or fix related components of the diamond drill bit hole opener. The edge of the drill wall 7 is fixedly provided with a plurality of cutting edges 6. The overall structural wall thickness of the drill wall 7 is 2 mm. The drill wall 7 is convenient for digging a plurality of cutting edges 6 with a size specification of 2 mm x 3 mm. The plurality of cutting edges 6 are uniformly distributed at equal distances from each other.

[0024] The inner side of the drill body 1 is threadedly connected with the brazing spring centering drill 4 with cooling function through the second screw 3, the brazing spring centering drill 4 and the brazing spring centering drill 10 are both made of hard alloy material, the outer side of the brazing spring centering drill 4 is connected with the brazing spring centering drill matching spring 5 with cooling function, the outer side of the brazing spring centering drill 4 is movably sleeved with the sponge 9, the sponge 9 is made of artificial water-absorbing sponge, the cold water stored in the sponge 9 is used to realize the cooling function in the working process of the drill bit, the sponge 9 is arranged on the inner side of the brazing spring centering drill matching spring 5, the inner side of the drill body 1 is threadedly connected with the brazing spring centering drill 10 through the second screw 3, the outer side of the brazing spring centering drill 10 is connected with the brazing spring centering drill matching spring 11, the brazing spring centering drill 4 and the brazing spring centering drill 10 can be fixed on the inner side of the drill body 1 by the second screw 3, so that the brazing spring centering drill 4 and the brazing spring centering drill 10 are convenient to replace, the brazing spring centering drill 4 with cooling function has a center drill blade length specification of 7mm*60mm, the brazing spring centering drill 10 has a center drill blade length of 6mm*53mm, the brazing spring centering drill matching spring 5 with cooling function has a length of 35mm and a wire diameter of 2.5mm, and the brazing spring centering drill matching spring 11 is a taper spring with a length of 35mm and a wire diameter of 1mm.

[0025] Before the opening operation, the brazing spring centering drill 4 with cooling function and the brazing spring centering drill 10 first contact the material surface, the sharp head (diameter 6-8mm) thereof is pre-pressed into the material to form a vertical guide hole, and the feeding direction of the main cutter head is forcedly constrained, and the cutting is carried out in stages: through the stage cutting of "micro-hole pre-drilling→main cutter expansion", the direct impact of the main cutter head on the material surface is avoided, and the risk of cracking of hard and brittle materials (such as ceramic tiles and rock plates) is reduced, the front end of the center drill of the hard alloy cutter head is a two-blade hard alloy cutter head, the rear end is gap-fitted with the inner cavity of the main cutter head (0.1-0.3mm), the coaxiality error is ensured to be ≤0.05mm, the material is selected as hard alloy (such as YG6X) which has high hardness and impact resistance and is suitable for high-frequency impact operation.

[0026] The reverse displacement of the drill bit when it exits the material triggers the spring to release energy, the residual debris in the inner cavity is instantly ejected, the blockage is avoided, the pure mechanical structure design does not need external energy (electricity / gas source), is suitable for the complex environment of the construction site, the spring stiffness coefficient of the brazing spring centering drill matching spring 5 and the brazing spring centering drill matching spring 11 is 5-8N / mm, the channel in the drill body 1 has an inclination angle of 30°-45°, and the inner wall is polished to reduce the adhesion of debris.

[0027] Working principle:

[0028] The product is mainly composed of a hole opener, a center drill and a spring. When in use, a φ6 alloy triangular drill bit is used to find the center position of the hole to be opened on the surface of the stone, then a triangular drill bit is used to open a φ6 center hole, and then the hole opener is used to open a hole with the center position. In this way, the specific position of the hole to be drilled on the stone is determined by rotating the hole opener first, and then the hole opener is used to cut the surface of the stone. The spring can pop out the residual pieces after the hole is opened. It is efficient, accurate and practical.

[0029] Before the hole opening operation, the brazed spring center positioning drill 4 and the brazed spring center positioning drill 10 will first contact the surface of the material, and the sharp head (diameter 6-8 mm) thereof is pre-pressed into the material to form a vertical guide hole, thereby forcibly restricting the feeding direction of the main cutter head. The cutting is carried out in stages through "micro-hole pre-drilling → main cutter expansion", so as to avoid the direct impact of the main cutter head on the surface of the material and reduce the risk of cracking of hard and brittle materials (such as ceramic tiles and rock plates). The front end of the center drill of the hard alloy cutter head is a two-blade hard alloy cutter head, and the rear end is in clearance fit (0.1-0.3 mm) with the inner cavity of the main cutter head, so as to ensure that the coaxiality error is less than or equal to 0.05 mm. The material is selected to be hard alloy (such as YG6X), which has high hardness and impact resistance, and is suitable for high-frequency impact operation.

[0030] Through the independent center positioning drill + hard alloy cutter head design, the following functions are realized:

[0031] Pre-guide hole physical limiting: the center drill cuts into the material before the main cutter head, forming a vertical guide reference, and eliminating the risk of manual force inclination; staged cutting and pressure reduction: the center drill micro-tip (diameter 6-8 mm) pre-punches with low pressure, and the main cutter head then expands the hole diameter, avoiding material cracking caused by instantaneous impact; chip removal efficiency defect (structural root cause).

[0032] The reverse displacement of the drill bit when exiting the material triggers the spring to release energy, which instantly ejects the residual debris in the inner cavity, avoiding blockage. The spring stiffness coefficient of the brazed spring center positioning drill supporting spring 5 and the brazed spring center positioning drill supporting spring 11 is 5-8 N / mm, and the inclination angle of the channel inside the drill body 1 is 30°-45°. The inner wall is polished to reduce the adhesion of debris.

[0033] Through the spring ejection channel structure, the following functions are realized:

[0034] Reverse displacement trigger chip removal: when the drill bit exits the material, the spring is compressed and stores energy, and the reset instant releases the thrust force, forcibly ejecting more than 90% of the residual debris. The process of spring contraction and release due to elastic force achieves the purpose of automatic chip removal. The inertial force guides the debris to be directed away, avoiding secondary retention. Embodiment

[0035] Refer to the attached drawings Figures 1-5 : In this embodiment, a diamond drill bit opener capable of positioning and automatic chip removal includes a support ring 12 fixedly installed on the inner rear side of the drill body 1, the support ring 12 is made of metal stainless steel material and is made into a circular sheet with a through hole 14 hollowed in the inside, the support ring 12 is inserted into the inner bottom surface of the drill body 1, the support ring 12 can play a role of supporting the drill bit working surface 8 on the outer side of the drill body 1 outward, thereby improving the compression resistance of the drill body 1, the inner side of the support ring 12 is fixedly provided with the through hole 14, the rear side of the drill body 1 is fixedly connected with a connecting shaft 13, the connecting shaft 13 is used for installing the drill body 1 on an externally arranged drilling machine, and the diamond drill bit opener is driven to rotate by the driving force of the drilling machine, and the other end of the connecting shaft 13 is fixedly connected with the output shaft of the drilling machine.

[0036] Working principle:

[0037] The support ring 12 is made of metal stainless steel material and is made into a circular sheet with a through hole 14 hollowed in the inside, the support ring 12 is inserted into the inner bottom surface of the drill body 1, the support ring 12 can play a role of supporting the drill bit working surface 8 on the outer side of the drill body 1 outward, thereby improving the compression resistance of the drill body 1, the connecting shaft 13 is used for installing the drill body 1 on an externally arranged drilling machine, and the diamond drill bit opener is driven to rotate by the driving force of the drilling machine.

[0038] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of the claims.

Claims

1. A diamond drill bit reamer which can be positioned and automatically chip-removing, comprising a drill body (1), a first screw (2) and a drill bit working surface (8), characterized in that: The first screw (2) is threadedly connected at the end of the drill body (1), the drill bit working surface (8) is fixedly installed at the front end of the drill body (1), the front end of the drill bit working surface (8) is provided with a drill wall (7), the inner side of the drill body (1) is threadedly connected with a second screw (3), the inner side of the drill body (1) is threadedly connected with a brazing spring centering drill with cooling function (4) through the second screw (3), the outer side of the brazing spring centering drill with cooling function (4) is connected with a brazing spring centering drill matching spring with cooling function (5), the outer side of the brazing spring centering drill with cooling function (4) movably sleeves a sponge (9), the sponge (9) is arranged at the inner side of the brazing spring centering drill matching spring with cooling function (5), the inner side of the drill body (1) is threadedly connected with a brazing spring centering drill (10) through the second screw (3), and the outer side of the brazing spring centering drill (10) is connected with a brazing spring centering drill matching spring (11).

2. The positionable self-feeding diamond drill bit pilot according to claim 1, wherein: The inner rear side of the drill body (1) is fixedly installed with a supporting ring (12), and the inner side of the supporting ring (12) is fixedly provided with a through hole (14).

3. The positionable self-feeding diamond pilot hole drill of claim 1 wherein: The rear side of the drill body (1) is fixedly connected with a connecting shaft (13), and the other end of the connecting shaft (13) is fixedly connected with a drill rig equipment output shaft.

4. The positionable self-feeding diamond drill bit pilot according to claim 1, wherein: A plurality of cutting edges (6) are fixedly arranged at the edge of the drill wall (7), and the plurality of cutting edges (6) are uniformly distributed at equal intervals.

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