A special grinding machine for ultra-high hardness drill bit processing

Abstract

The invention relates to a special grinding machine for processing ultra-high hardness drill bits, comprising a base and a grinding device, a guiding device, a clamping device and a cooling device arranged on the base, the guiding device comprising a steering seat, a clamping seat being provided at one end of the steering seat, the clamping seat being composed of two folding plates, wherein a hole is provided on the surface of the folding plate located at the upper portion; the clamping device comprises a fixed sleeve, a connecting plate being welded on the outer surface of the fixed sleeve, an inserting tube being welded at one end of the connecting plate, a convex button being provided in the inner cavity of the inserting tube, one end of the convex button passing through the upper surface of the inserting tube, and a size of the lower end of the convex button being larger than that of the upper end, and being limited, a spring being provided at the bottom end of the convex button, by embedding the inserting tube into the clamping seat, the convex button is moved to the two holes under the compression action of the spring, and the inserting tube is limited, so that the fixed sleeve is fixed on one side of the steering seat, and when disassembling, only the two convex buttons need to be pressed to separate the fixed sleeve from the steering seat, the operation is simple, and the fixing effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of drill bit processing, and in particular relates to a special grinding machine for processing ultra-high hardness drill bits. Background Art

[0002] The drill bit is one of the important tools used for drilling and grinding. As we all know, the blade of the drill bit will wear out after multiple drilling processes. If it is not sharpened, it will affect the drilling accuracy of the drill bit and the service life of the drill bit. Therefore, sharpening is an important process. The drill bit is generally sharpened by a sharpener. When sharpening the blade of the drill bit, it is necessary to adjust the position of the drill bit fixing device to adapt to the grinding surface of the grinding wheel. The existing sharpener is very cumbersome to adjust the guide device, which affects the grinding efficiency. In addition, the existing drill bit fixing device cannot effectively fix the drill bit in all directions when fixing the drill bit, and the fixing effect is poor. Moreover, when the drill bit is being sharpened, it will vibrate or even move under the action of the grinding wheel, which will seriously affect the grinding quality of the drill bit. The high-speed rotation of the grinding wheel and the drill bit will generate a lot of heat, which will increase the temperature of the grinding wheel and the drill bit. If the drill bit and the grinding wheel are not cooled, this will affect the grinding accuracy of the grinding wheel and reduce the quality performance of the drill bit. Summary of the invention

[0003] In view of the above problems, the present invention discloses a special grinding machine for processing ultra-high hardness drill bits.

[0004] The specific technical solutions are as follows:

[0005] A special grinding machine for ultra-high hardness drill bit processing, comprising a base and a grinding device, a guide device, a clamping device, and a cooling device arranged on the base, wherein the guide device comprises a steering seat, one end of which is provided with a clamping seat, and the clamping seat is composed of two L-shaped folding plates arranged opposite to each other, the two folding plates are distributed up and down, and two holes are provided on the surface of the folding plate located at the upper side; the clamping device comprises a fixed sleeve, which is a hollow cylindrical structure, a connecting plate is welded to the outer surface of the fixed sleeve, an inserting tube is welded to one end of the connecting plate, and the inserting tube is a hollow rectangular parallelepiped, and two convex buttons are arranged in the inner cavity of the inserting tube, and one end of the convex button It penetrates the upper surface of the insert cylinder, and the lower end size of the convex button is larger than the upper end size, and is limited. A spring is connected to the bottom end of the convex button. The insert cylinder is adapted to the card seat, and the spacing between the two convex buttons is consistent with the spacing between the two holes on the card seat. When the insert cylinder is embedded in the card seat on the steering seat, the two convex buttons move to the two holes under the compression of the spring, and limit the insert cylinder, so that the fixed sleeve is fixed on one side of the steering seat. The inner cavity of the fixed sleeve is provided with a plurality of positioning grooves, and the plurality of positioning grooves are evenly distributed in the inner cavity of the fixed sleeve, and the positioning grooves extend from one end of the inner cavity of the fixed sleeve to the other end.

[0006] Furthermore, the grinding device includes a motor fixing seat, a driving motor, a gear group, a grinding wheel, and a grinding wheel cover. The motor fixing seat is fixed to the base by bolts and nuts, the driving motor is installed on the motor fixing seat, the output end of the driving motor is connected to the gear group, the output end of the gear group is connected to the axis of the grinding wheel, and the grinding wheel cover is installed on the outer surface of the grinding wheel.

[0007] Furthermore, the cooling device is arranged on one side of the motor fixing seat, and the cooling device includes a coolant tank, a water pump, and a liquid extraction pipe. The water pump is installed and connected to the coolant tank, and the water pump is connected to the liquid extraction pipe. One end of the liquid extraction pipe is connected to a metal nozzle, and the metal nozzle vertically penetrates the top of the grinding wheel guard cover and is connected to the inner cavity of the grinding wheel guard cover. The coolant in the coolant tank is transported to the metal nozzle at one end of the liquid extraction pipe through the water pump, and the coolant is sprayed onto the grinding wheel, thereby cooling the grinding wheel and the drill bit.

[0008] Furthermore, a coolant collecting tank is provided on the base, and the coolant collecting tank is located below the grinding wheel, so as to collect the coolant thrown off the grinding wheel.

[0009] The slidable guide wheel is annularly arranged on the bottom surface of the sliding seat, and the slidable guide wheel is vertically arranged on the bottom surface of the sliding seat, and the slidable guide wheel is vertically arranged on the bottom surface of the sliding seat, and the slidable guide wheel is vertically arranged on the bottom surface of the sliding seat.

[0010] Furthermore, a limiting cavity is provided at the upper end of the fixed arm, and a rotating shaft is vertically provided on one side of the rotating seat. One end of the rotating shaft passes through the surface of the fixed arm and enters the limiting cavity, and is connected with a limiting block, thereby realizing the rotating connection between the rotating seat and the fixed arm.

[0011] Furthermore, the clamping device also includes a fixing sleeve, a positioning clamp, and a limiting sleeve; the limiting sleeve is a hollow cylindrical structure, the side wall at one end of the limiting sleeve is open, and the inner wall of the open end of the limiting sleeve is threadedly connected to the surface of one end of the fixing sleeve, and a through hole is provided in the center of the side wall at the other end, the diameter of the through hole is consistent with the inner cavity diameter of the fixing sleeve, and a plurality of limiting grooves are provided around the through hole, the limiting grooves are all arc-shaped structures, and a plurality of the limiting grooves are spirally evenly distributed around the through hole; the positioning clamp includes an extension plate, an arc clamping plate, a connecting shaft, and a limiting wheel, the extension plate is a long strip structure, and one side of the extension plate is respectively embedded The cam is inserted into the positioning groove in the inner cavity of the fixed sleeve, and the other side of the extension plate is connected to the outer wall of the arc-shaped clamping plate. The inner wall of the arc-shaped clamping plate can fit the side wall of the drill bit, and the inner wall surface of the arc-shaped clamping plate is provided with anti-slip convex patterns. One end of the connecting shaft is connected to one end of the extension plate, and the other end of the connecting shaft is connected to the limiting wheel. The rollers are respectively embedded in several limiting grooves on the limiting sleeve and are movably connected to the limiting grooves. By rotating the limiting sleeve threadedly connected to the fixed sleeve, the sliding wheel in the limiting groove rolls, and the limiting wheel drives the extension plate to move from the positioning groove to the center of the fixed sleeve through the connecting shaft, thereby enabling the arc-shaped clamping plate to clamp and fix the drill bit.

[0012] Furthermore, the limiting wheel includes a positioning block, a rotating shaft, and a roller. The roller is embedded in the limiting groove. The rotating shaft passes through the axis of the roller and is rotatably connected to the roller. One positioning block is connected to each of the two ends of the rotating shaft. The two positioning blocks are respectively located on both sides of the limiting groove and limit the roller so that the limiting wheel can roll in the limiting groove.

[0013] Furthermore, the number of the positioning clips is consistent with the number of the positioning slots and the limiting slots.

[0014] The beneficial effects of the present invention are:

[0015] (1) The cooling device in the present invention transports the coolant in the coolant tank to the metal nozzle at one end of the liquid extraction pipe through a water pump, and sprays the coolant onto the grinding wheel, thereby cooling the grinding wheel and the workpiece, effectively avoiding damage to the grinding tooling and workpiece due to high temperature, and improving the safety of the equipment.

[0016] (2) In the present invention, the position of the clamping seat can be quickly adjusted through the cooperation between the sliding base and the first guide rail, and the cooperation between the fixed arm and the second guide rail, so as to adapt to the grinding of different angles and positions of the drill bit cutting edge, thereby effectively improving the grinding efficiency.

[0017] (3) The present invention rotates the limiting sleeve threadedly connected to the fixed sleeve to make the sliding wheel in the limiting groove roll. The limiting wheel drives the extension plate to move from the positioning groove to the center of the fixed sleeve through the connecting shaft, so that the arc-shaped clamping plate clamps and fixes the drill bit. Compared with the traditional screw extrusion fixation, the present invention adopts the threaded connection between the limiting sleeve and the fixed sleeve for limiting. The fixing method is more stable and convenient, the structure is ingenious, and the practicability is high.

[0018] (4) The present invention adopts an arc-shaped clamping plate to fix drill bits of different sizes and can fix the drill bits in all directions. Combined with the anti-slip convex pattern on the inner wall of the arc-shaped clamping plate, the drill bit can be effectively prevented from vibrating and shifting during sharpening, thereby further ensuring the grinding quality of the drill bit.

[0019] (5) The fixed sleeve in the present invention adopts an insert sleeve with a convex button and a spring to fix it with the clamping seat on the steering seat. When disassembling, only two convex buttons need to be pressed to separate the fixed sleeve from the steering seat. The operation is simple and the fixing effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural diagram of the cooling device in the present invention.

[0022] Figure 3 It is a cross-sectional view of the fixed arm in the present invention.

[0023] Figure 4 It is a three-dimensional diagram of the steering seat in the present invention.

[0024] Figure 5 It is a structural schematic diagram of the present invention.

[0025] Figure 6 It is the front view of the present invention.

[0026] Figure 7 It is a cross-sectional view of the present invention.

[0027] Figure 8 It is a left side view of the fixing sleeve in the present invention.

[0028] Fig. 9 It is a three-dimensional diagram of the fixing clip in the present invention.

[0029] Fig.10 It is a schematic diagram of the structure of the limiting wheel in the present invention. DETAILED DESCRIPTION

[0030] In order to make the technical solution of the present invention clearer and more explicit, the present invention is further described below in conjunction with the accompanying drawings. Any equivalent replacement of the technical features of the technical solution of the present invention and any solution derived by conventional reasoning shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] Description of Reference Numerals

[0033] Base 1, grinding device 2, motor fixing seat 21, driving motor 22, gear set 23, grinding wheel 24, grinding wheel protective cover 25, cooling device 3, coolant tank 31, water pump 32, liquid extraction pipe 33, metal nozzle 34, coolant collection tank 35, guide device 4, first guide rail 41, guide rail support 42, screw 43, turntable 431, sliding base 44, second slide rail 45, fixed arm 46, limit cavity 461, knob screw 462, rotating seat 47, rotating shaft 471, limit block 47 2. Steering seat 48, clamping seat 481, folding plate 4811, hole 4812, clamping device 5, fixing sleeve 51, positioning groove 511, thread 512, connecting plate 513, inserting tube 514, convex button 5141, spring 5142, positioning clamp 52, extension plate 521, arc-shaped clamping plate 522, anti-slip convex pattern 5221, connecting shaft 523, limiting wheel 524, positioning block 5241, rotating shaft 5242, roller 5243, limiting sleeve 53, through hole 531, limiting groove 532.

[0034] A special grinding machine for ultra-high hardness drill bit processing, comprising a base and a grinding device, a guide device, a clamping device, and a cooling device arranged on the base, wherein the guide device comprises a steering seat, one end of which is provided with a clamping seat, and the clamping seat is composed of two L-shaped folding plates arranged opposite to each other, the two folding plates are distributed up and down, and two holes are provided on the surface of the folding plate located at the upper side; the clamping device comprises a fixed sleeve, which is a hollow cylindrical structure, a connecting plate is welded to the outer surface of the fixed sleeve, an inserting tube is welded to one end of the connecting plate, and the inserting tube is a hollow rectangular parallelepiped, and two convex buttons are arranged in the inner cavity of the inserting tube, and one end of the convex button It penetrates the upper surface of the insert cylinder, and the lower end size of the convex button is larger than the upper end size, and is limited. A spring is connected to the bottom end of the convex button. The insert cylinder is adapted to the card seat, and the spacing between the two convex buttons is consistent with the spacing between the two holes on the card seat. When the insert cylinder is embedded in the card seat on the steering seat, the two convex buttons move to the two holes under the compression of the spring, and limit the insert cylinder, so that the fixed sleeve is fixed on one side of the steering seat. The inner cavity of the fixed sleeve is provided with a plurality of positioning grooves, and the plurality of positioning grooves are evenly distributed in the inner cavity of the fixed sleeve, and the positioning grooves extend from one end of the inner cavity of the fixed sleeve to the other end.

[0035] Furthermore, the grinding device includes a motor fixing seat, a driving motor, a gear group, a grinding wheel, and a grinding wheel cover. The motor fixing seat is fixed to the base by bolts and nuts, the driving motor is installed on the motor fixing seat, the output end of the driving motor is connected to the gear group, the output end of the gear group is connected to the axis of the grinding wheel, and the grinding wheel cover is installed on the outer surface of the grinding wheel.

[0036] Furthermore, the cooling device is arranged on one side of the motor fixing seat, and the cooling device includes a coolant tank, a water pump, and a liquid extraction pipe. The water pump is installed and connected to the coolant tank, and the water pump is connected to the liquid extraction pipe. One end of the liquid extraction pipe is connected to a metal nozzle, and the metal nozzle vertically penetrates the top of the grinding wheel guard cover and is connected to the inner cavity of the grinding wheel guard cover. The coolant in the coolant tank is transported to the metal nozzle at one end of the liquid extraction pipe through the water pump, and the coolant is sprayed onto the grinding wheel, thereby cooling the grinding wheel and the drill bit.

[0037] Furthermore, a coolant collecting tank is provided on the base, and the coolant collecting tank is located below the grinding wheel, so as to collect the coolant thrown off the grinding wheel.

[0038] The slidable guide wheel is annularly arranged on the bottom surface of the sliding seat, and the slidable guide wheel is vertically arranged on the bottom surface of the sliding seat, and the slidable guide wheel is vertically arranged on the bottom surface of the sliding seat, and the slidable guide wheel is vertically arranged on the bottom surface of the sliding seat.

[0039] Furthermore, one end of the rotating seat is provided with.

[0040] Furthermore, the clamping device also includes a fixing sleeve, a positioning clamp, and a limiting sleeve; the limiting sleeve is a hollow cylindrical structure, the side wall at one end of the limiting sleeve is open, and the inner wall of the open end of the limiting sleeve is threadedly connected to the surface of one end of the fixing sleeve, and a through hole is provided in the center of the side wall at the other end, the diameter of the through hole is consistent with the inner cavity diameter of the fixing sleeve, and a plurality of limiting grooves are provided around the through hole, the limiting grooves are all arc-shaped structures, and a plurality of the limiting grooves are spirally evenly distributed around the through hole; the positioning clamp includes an extension plate, an arc clamping plate, a connecting shaft, and a limiting wheel, the extension plate is a long strip structure, and one side of the extension plate is respectively embedded The cam is inserted into the positioning groove in the inner cavity of the fixed sleeve, and the other side of the extension plate is connected to the outer wall of the arc-shaped clamping plate. The inner wall of the arc-shaped clamping plate can fit the side wall of the drill bit, and the inner wall surface of the arc-shaped clamping plate is provided with anti-slip convex patterns. One end of the connecting shaft is connected to one end of the extension plate, and the other end of the connecting shaft is connected to the limiting wheel. The rollers are respectively embedded in several limiting grooves on the limiting sleeve and are movably connected to the limiting grooves. By rotating the limiting sleeve threadedly connected to the fixed sleeve, the sliding wheel in the limiting groove rolls, and the limiting wheel drives the extension plate to move from the positioning groove to the center of the fixed sleeve through the connecting shaft, thereby enabling the arc-shaped clamping plate to clamp and fix the drill bit.

[0041] Furthermore, the limiting wheel includes a positioning block, a rotating shaft, and a roller. The roller is embedded in the limiting groove. The rotating shaft passes through the axis of the roller and is rotatably connected to the roller. One positioning block is connected to each of the two ends of the rotating shaft. The two positioning blocks are respectively located on both sides of the limiting groove and limit the roller so that the limiting wheel can roll in the limiting groove.

[0042] Furthermore, the number of the positioning clips is consistent with the number of the positioning slots and the limiting slots.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A special grinding machine for ultra-high hardness drill bit processing, characterized in that: It comprises a base and a grinding device, a guiding device, a clamping device and a cooling device arranged on the base, wherein the guiding device comprises a steering seat, a clamping seat is arranged at one end of the steering seat, and the clamping seat is composed of two L-shaped folding plates arranged opposite to each other, and the two folding plates are distributed up and down, and two holes are provided on the surface of the folding plate located at the upper part; the clamping device comprises a fixing sleeve, and the fixing sleeve is a hollow cylindrical structure, a connecting plate is welded on the outer surface of the fixing sleeve, an inserting tube is welded on one end of the connecting plate, and the inserting tube is a hollow rectangular parallelepiped, and two convex buttons are arranged in the inner cavity of the inserting tube, and one end of the convex button penetrates the upper surface of the inserting tube , and the size of the lower end of the convex button is larger than the size of the upper end, and it is limited. A spring is connected to the bottom end of the convex button. The inserting tube is adapted to the card seat, and the spacing between the two convex buttons is consistent with the spacing between the two holes on the card seat. When the inserting tube is embedded in the card seat on the steering seat, the two convex buttons move to the two holes under the compression of the spring, and the inserting tube is limited, so that the fixed sleeve is fixed on one side of the steering seat. The inner cavity of the fixed sleeve is provided with a plurality of positioning grooves, and the plurality of positioning grooves are evenly distributed in the inner cavity of the fixed sleeve, and the positioning grooves extend from one end of the inner cavity of the fixed sleeve to the other end; The clamping device also includes a fixing sleeve, a positioning clamp, and a limiting sleeve; the limiting sleeve is a hollow cylindrical structure, the side wall of one end of the limiting sleeve is opened, and the inner wall of the open end of the limiting sleeve is threadedly connected to the surface of one end of the fixing sleeve, and a through hole is provided at the center of the side wall of the other end, the diameter of the through hole is consistent with the inner cavity diameter of the fixing sleeve, a plurality of limiting grooves are provided around the through hole, the limiting grooves are all arc-shaped structures, and a plurality of limiting grooves are spirally evenly distributed around the through hole; the positioning clamp includes an extension plate, an arc-shaped clamping plate, a connecting shaft, and a limiting wheel, the extension plate is a long strip structure, one side of the extension plate is respectively embedded in the positioning groove in the inner cavity of the fixing sleeve, and the other side of the extension plate is connected to the outer wall of the arc-shaped clamping plate, the inner wall of the arc-shaped clamping plate can fit the side wall of the drill bit, and the inner wall surface of the arc-shaped clamping plate is provided with anti-slip convex patterns, one end of the connecting shaft is connected to one end of the extension plate, and the other end of the connecting shaft is connected to the limiting wheel; The limiting wheel comprises a positioning block, a rotating shaft and a roller, the roller is embedded in the limiting groove, the rotating shaft passes through the axis of the roller and is rotatably connected to the roller, and one positioning block is connected to each of the two ends of the rotating shaft, and the two positioning blocks are respectively located on both sides of the limiting groove and limit the roller so that the limiting wheel can roll in the limiting groove; The rollers are respectively embedded in several of the limiting grooves on the limiting sleeve and are movably connected to the limiting grooves; by rotating the limiting sleeve threadedly connected to the fixed sleeve, the rollers in the limiting grooves roll, and the limiting wheel drives the extension plate to move from the positioning groove to the center of the fixed sleeve through the connecting shaft, thereby enabling the arc-shaped clamping plate to clamp and fix the drill bit.

2. A grinding machine for ultra-high hardness drill bit processing as claimed in claim 1, characterized in that: The grinding device includes a motor fixing seat, a driving motor, a gear set, a grinding wheel, and a grinding wheel cover. The motor fixing seat is fixed to the base by bolts and nuts, the driving motor is installed on the motor fixing seat, the output end of the driving motor is connected to the gear set, the output end of the gear set is connected to the axis of the grinding wheel, and the grinding wheel cover is installed on the outer surface of the grinding wheel.

3. A special grinding machine for ultra-high hardness drill bit processing as claimed in claim 1, characterized in that: The cooling device is arranged on one side of the motor fixing seat, and the cooling device includes a coolant tank, a water pump, and a liquid extraction pipe. The water pump is installed on and connected to the coolant tank, and the water pump is connected to the liquid extraction pipe. One end of the liquid extraction pipe is connected to a metal nozzle, and the metal nozzle vertically penetrates the top of the grinding wheel guard and is connected to the inner cavity of the grinding wheel guard. The coolant in the coolant tank is transported to the metal nozzle at one end of the liquid extraction pipe through the water pump, and the coolant is sprayed onto the grinding wheel, thereby cooling the grinding wheel and the drill bit.

4. A grinding machine for ultra-high hardness drill bit processing as claimed in claim 3, characterized in that: The base is also provided with a coolant collecting tank, which is located below the grinding wheel, so as to collect the coolant thrown off the grinding wheel.

5. A grinding machine for ultra-high hardness drill bit processing as claimed in claim 2, characterized in that: The guide rail is fixedly mounted on the base and is located at the other end of the motor fixing base, and guide rail supports are connected at both ends of the guide rail. A screw rod is passed through the guide rail, and the screw rod is located above the first guide rail. A turntable is connected to the screw rod at one end outside the guide rail support. The screw rod is located between the guide rail supports and is threadedly connected to the sliding base. The bottom of the sliding base is slidably connected to the guide rail through the turntable to drive the screw rod to rotate so that the sliding base slides on the first guide rail. The second guide rail is fixedly mounted on the sliding base, and the direction of the second guide rail is perpendicular to the direction of the first guide rail. A fixed arm is slidably provided on the second guide rail, and a knob screw is passed through one side of the lower end of the fixed arm, and the knob screw is threadedly connected to the fixed arm, and the knob screw is rotated so that one end of the knob screw contacts the second guide rail and fixes the fixed arm on the second guide rail. One side of the upper end of the fixed arm is rotatably connected with a rotating seat, and one end of the rotating seat is hinged to the steering seat.

6. A grinding machine for ultra-high hardness drill bit processing as claimed in claim 5, characterized in that: A limiting cavity is provided at the upper end of the fixed arm, and a rotating shaft is vertically provided on one side of the rotating seat. One end of the rotating shaft passes through the surface of the fixed arm, enters the limiting cavity, and is connected with a limiting block, thereby realizing the rotating connection between the rotating seat and the fixed arm.

7. A grinding machine for ultra-high hardness drill bit processing as claimed in claim 1, characterized in that: The number of the positioning clips is consistent with the number of the positioning slots and the limiting slots.

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