Drill sharpener

Abstract

The utility model relates to tool grinder technical field, is a drill bit sharpening grinder, including the body, drill positioning subassembly, grinding base, grinding axle, grinding wheel, finishing mechanism and feeding subassembly, the upper side of body rear portion is equipped with the cross slide who can make the grinding base left and right, front and back movement, the upper side of grinding base front portion is equipped with the grinding axle. The utility model is reasonable and compact in structure, the drill positioning subassembly clamps the drill handle portion and rotates a certain angle, adjusts the included angle between drill center axis and grinding wheel center, grinding wheel can grind the top angle of drill according to the demand in this way, the drill positioning subassembly makes the drill bit edge swing up and down relative to grinding wheel, grinding wheel can grind the back angle of drill according to the demand in this way, the left side of grinding axle left department is fixed and installed with at least two grinding wheels, can carry out the grinding to the drill bit edge of multiple specifications, can guarantee the grinding efficiency while guaranteeing the grinding of multiple specifications drill.

Description

Technical Field

[0001] This utility model relates to the field of tool grinding technology, and is a drill bit grinding machine. Background Technology

[0002] After prolonged drilling, the cutting edge of the drill bit gradually wears down, resulting in a loss of drilling accuracy. Therefore, after multiple uses, the cutting edge of the drill bit needs to be sharpened to improve its accuracy and lifespan. The quality of drill bit sharpening directly affects the drilling quality, processing efficiency, and the lifespan of the brick. Currently, drill bit sharpening is mainly done by hand on a grinding wheel. This method poses significant safety hazards. During sharpening, the grinding wheel can easily injure fingers; furthermore, due to hand wobbling, it is difficult to control the amount and angle of sharpening, leading to large deviations in the drill bit's point and clearance angles, which in turn affects the drilling quality and the lifespan of the drill bit.

[0003] Chinese patent document CN101774137A discloses a CNC drill bit double back angle grinding machine, which has a frame, an electrical control cabinet, a hydraulic device, an operation panel, and a lubrication device. The frame is equipped with a grinding wheel device, including a grinding wheel frame fixed on the frame, a grinding wheel adjustablely connected to the grinding wheel frame, and a drive motor for driving the grinding wheel to rotate. The grinding wheel frame is equipped with a grinding wheel feeding device, which has a grinding wheel feeding cylinder for driving the grinding wheel to move. An automatic feeding device is provided on the front side of the grinding wheel frame on the frame, including a hopper for storing the workpiece, a hopper cylinder for driving the hopper, a material trough for moving the workpiece, a feeding rod, and a feeding cylinder for driving the feeding rod. A drill bit clamping device is provided on the right side of the automatic feeding device on the frame, including a chuck, a servo motor for driving the chuck to rotate, a clamping cylinder, and a braking cylinder. Below the drill bit clamping device is a chuck feeding device, which includes a guide rail for supporting and guiding the movement of the drill bit clamping device and a chuck feeding cylinder for driving the movement of the drill bit clamping device.

[0004] Chinese patent document CN219967327U discloses a drill tip stepped grinding mill, which includes a worktable. At the upper front end of the worktable are a workpiece reciprocating mechanism, a positioning mechanism, and a feeding mechanism. The workpiece reciprocating mechanism is located on the left side, and the positioning mechanism is located in the middle of the workpiece reciprocating mechanism and the feeding mechanism. At the upper rear side of the worktable are a grinding wheel reciprocating mechanism and a grinding wheel dresser. The workpiece reciprocating mechanism consists of a second X-axis servo motor, a second X-axis slide, a workpiece spindle, and an A-axis servo motor. The positioning mechanism consists of a positioning mechanism cylinder, a front cover baffle, and a guide sleeve seat. The feeding mechanism consists of a feeding slide, a top rod, a feeding servo motor, a material box, a material box cylinder, and a material box slide. The grinding wheel reciprocating mechanism consists of a Y-axis slide, a Y-axis servo motor, a spindle motor, a first X-axis slide, a first X-axis servo motor, and a grinding wheel shaft mechanism.

[0005] Chinese patent document CN220613268U discloses a drill bit swivel head grinding machine, which includes a base, a main body installed at the bottom of the base, and a feeding assembly, a swivel head reciprocating assembly, and a grinding wheel spindle assembly respectively installed at the top of the base. The swivel head reciprocating assembly includes an A-axis rotating unit and a grinding wheel dresser installed on one side of the A-axis rotating unit.

[0006] When a drill bit is being ground on a grinding machine, it must first be fixed to prevent it from shifting during grinding, which could damage the cutting edge of the drill bit. Existing tool grinding machines only have one type of grinding wheel, which means they can only grind one type of drill bit. Moreover, the grinding wheel needs to be dressed after the machine has been stopped for a period of time, resulting in low grinding efficiency. Summary of the Invention

[0007] This utility model provides a drill bit grinding machine that overcomes the shortcomings of the prior art and can effectively solve the problems that existing grinding machines can only grind one type of drill bit and have low grinding efficiency.

[0008] The technical solution of this utility model is achieved through the following measures: A drill bit grinding machine includes a bed, a drill bit positioning assembly, a grinding base, a grinding shaft, grinding wheels, a dressing mechanism, and a feeding assembly. A cross slide is provided on the upper rear side of the bed, which allows the grinding base to move left and right and back and forth. A grinding shaft is installed on the upper front side of the grinding base. At least two grinding wheels are fixedly installed at intervals on the outer left side of the grinding shaft. A grinding motor is installed on the upper rear side of the grinding base. The right end of the output shaft of the grinding motor is connected to the right end of the grinding shaft. A dressing mechanism for dressing the grinding wheels is provided on the upper front side of the bed corresponding to the left side of the grinding base. A drill bit positioning assembly is provided on the upper front side of the bed corresponding to the position in front of the dressing mechanism. The drill bit positioning assembly is used to clamp the drill bit and adjust the angle between the drill bit edge and the grinding wheel. A feeding assembly is provided on the upper front side of the bed corresponding to the position in front of the cross slide. The feeding assembly can move the shank of the drill bit into the drill bit positioning assembly.

[0009] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0010] The grinding base may be equipped with a testing assembly, which includes a grinding spindle seat, a vertical fixing plate, a horizontal fixing plate, a testing base, a positioning rod seat, a positioning pin, and a positioning cylinder. A grinding spindle seat, which is rotatably mounted on the outside of the grinding spindle, is fixedly installed on the upper side of the grinding base. A vertical fixing plate is fixedly installed on the front side of the grinding spindle seat. A horizontal fixing plate is fixedly installed on the front side of the vertical fixing plate. A testing slide rail is fixedly installed on the front side of the horizontal fixing plate. A testing base is slidably mounted on the outer side of the front part of the testing slide rail. A positioning cylinder that enables the testing base to move left and right is fixedly installed on the right side of the horizontal fixing plate. A positioning rod seat is fixedly installed on the front side of the testing base. A positioning pin is installed on the front part of the positioning rod seat.

[0011] The aforementioned feeding assembly may include a feeding base, a feeding cylinder, a pushing cylinder, a pushing base, a guide slope, a feeding seat, a top seat, and a top cylinder. A left-right feeding slide rail is fixedly installed on the upper front part of the bed corresponding to the position in front of the positioning pin. A feeding base is slidably installed on the upper part of the feeding slide rail. A feeding cylinder is provided behind the feeding slide rail, enabling the feeding base to move left and right. A feeding support seat is fixedly installed on the upper side of the feeding base. A feeding fixed seat is fixedly installed in front of the feeding support seat. A front-back pushing slide rail is installed on the upper side of the feeding fixed seat. A pushing slider is slidably installed on the upper part of the pushing slide rail on the lower side of the pushing base. A pushing cylinder is fixedly installed in front of the feeding fixed seat, enabling the pushing base to move back and forth. An adjustment groove, narrower at the top and wider at the bottom, is provided on the upper rear part of the pushing base. Two first feeding baffles are spaced apart on the upper left and right sides of the pushing base. A top feeding cylinder is fixedly installed on the lower rear part of each first feeding baffle. Each feed slider is slidably installed in an adjusting groove. A second feed baffle is fixedly installed on the rear side of each first feed baffle. Guide slope plates are detachably and fixedly installed on the adjacent sides of the first feed baffles. The upper side of the guide slope plate slopes downward from front to back, and there is a gap between the rear side of the guide slope plate and the front side of the second feed baffle. The rear side of the guide slope plate and the front side of the second feed baffle form a material drop hole. A feed seat is fixedly installed on the rear side of the feed fixing seat corresponding to the position below the second feed baffle. A push groove that runs through the left and right is provided on the upper side of the feed seat. A push plate is slidably installed on the lower side of the feed fixing seat along the left and right direction. A top material seat is slidably installed on the upper side of the feed seat. A connecting plate is fixedly installed between the rear side of the top material seat and the rear side of the push plate. A top material cylinder that enables the top material seat to move left and right is fixedly installed on the right side of the feed seat. When the top material seat moves to the left, it can push the drill bit in the push groove into the main shaft of the indexing machine.

[0012] The aforementioned drill bit positioning assembly may include a fixed base, a worktable, an indexing machine, a translation component, an openable / closeable pneumatic gripper, and positioning pins. A fixed base is fixedly installed on the upper left side of the bed corresponding to the left position of the grinding axis. A worktable is installed on the upper side of the fixed base. A fixed platform is installed on the upper side of the worktable. A shaft seat is fixedly installed on the upper side of the fixed platform. A geared motor is fixedly installed on the left side of the shaft seat. The right end of the output shaft of the geared motor passes through the shaft seat and is fixedly installed with a mounting plate. An indexing machine is located on the right side of the mounting plate. A translation component is located on the right side of the mounting plate, which enables the indexing machine to reciprocate along the radial direction of the output shaft of the geared motor. An openable / closeable pneumatic gripper is fixedly installed on the upper rear side of the indexing machine. Positioning claws are fixedly installed on both fingers of the openable / closeable pneumatic gripper. Positioning pins are fixedly installed on the lower sides of the two positioning claws that are close to each other. The two positioning pins are symmetrically distributed about the central axis of the indexing machine spindle.

[0013] The indexing machine spindle can be a hollow structure. Two symmetrically distributed mounting surfaces are provided on the outer side of the front end of the indexing machine spindle. A spring is fixedly installed on each mounting surface, and there is a gap between the front parts of the springs.

[0014] The aforementioned translation assembly may include a support plate, a translation slide rail, an adjusting screw, and a fixed base. The rear left side of the support plate is fixedly installed together with the right side of the mounting plate. The right side of the support plate is fixedly equipped with a translation slide rail, the cross-section of which gradually narrows from right to left. The right side of the fixed base is fixedly installed together with the left side of the indexing machine. The left side of the fixed base is provided with a translation groove that matches the slide rail. The translation slide rail is slidably installed in the translation groove. An adjusting plate is fixedly installed on the front side of the support plate. The right side of the adjusting plate is provided with a through-groove. The front side of the fixed base corresponding to the position of the rotation groove is provided with an adjusting screw hole. An adjusting screw is rotatably installed in the rotation groove. The rear part of the adjusting screw is screwed into the adjusting screw hole.

[0015] A first connecting seat can be fixedly installed on the rear left side of the indexing machine, and a guide sleeve is fixedly installed on the right side of the first connecting seat. The guide sleeve is located between the rear of the indexing machine spindle and the front of the positioning claw.

[0016] The aforementioned dressing mechanism may include a dressing frame, a dressing motor, a dressing shaft, and a dressing grinding wheel. A dressing frame is fixedly installed on the upper rear side of the machine tool. The right side of the dressing frame has a U-shaped notch with an opening facing forward. The outer left side of the grinding shaft is located inside the notch. A dressing shaft is rotatably installed in the dressing frame corresponding to the position behind the grinding shaft. A dressing grinding wheel is fixedly installed on the outer right side of the dressing shaft. A dressing motor is fixedly installed on the upper side of the dressing frame. The left end of the output shaft of the dressing motor is connected to the left end of the dressing shaft.

[0017] This utility model has a reasonable and compact structure. In use, the drill bit to be ground is placed into the feeding assembly. When the feeding assembly is working, it pushes the drill bit shank into the drill bit positioning assembly. After clamping the drill bit shank, the drill bit positioning assembly rotates a certain angle to adjust the angle between the drill bit's central axis and the center of the grinding wheel. In this way, the grinding wheel can grind the drill bit's tip angle as needed. The drill bit positioning assembly causes the drill bit's cutting edge to swing up and down relative to the grinding wheel, so that the grinding wheel can grind the drill bit's back angle as needed. The cross slide allows the grinding base to move back and forth and left and right. This allows the outer side of the grinding wheel to be dressed by the dressing mechanism, thereby extending the service life of the grinding wheel. At least two grinding wheels are fixedly installed on the outer left side of the grinding shaft at intervals, which can grind the cutting edges of various specifications of drill bits. While ensuring the grinding of various specifications of drill bits, it can also ensure grinding efficiency. Attached Figure Description

[0018] Appendix Figure 1 These are schematic diagrams of the main structural features of this utility model, numbers one to eight.

[0019] Appendix Figure 2 This is a schematic diagram of the right-side structure of utility models one to eight.

[0020] Appendix Figure 3 This is a schematic diagram of the left-side structure of the present invention, numbers one to eight.

[0021] Appendix Figure 4 This is a top view of the structure of the present invention, numbers one to eight.

[0022] Appendix Figure 5 For the appendix Figure 4 A magnified structural diagram of point A in the middle.

[0023] Appendix Figure 6 This is a three-dimensional structural diagram of the present invention, numbers one to eight.

[0024] Appendix Figure 7 This is a three-dimensional structural diagram of the present invention with the feeding components removed (see diagrams 1 to 8).

[0025] Appendix Figure 8 This is a schematic diagram of the main structure of the test components in sections two to eight of this utility model.

[0026] Appendix Figure 9 This is a top view of the test components in sections two to eight of this utility model.

[0027] Appendix Figure 10 This is a three-dimensional structural diagram of the test components in sections two to eight of this utility model.

[0028] Appendix Figure 11 This is a three-dimensional structural diagram of the feeding components in sections three to eight of this utility model. Figure 1 .

[0029] Appendix Figure 12 This is a three-dimensional structural diagram of the feeding components in sections three to eight of this utility model. Figure 2 .

[0030] Appendix Figure 13 This is a schematic diagram of the left-side cross-sectional structure of the feeding components in sections three to eight of this utility model.

[0031] Appendix Figure 14 This is a cross-sectional structural diagram of the guide sleeves in sections four to eight of this utility model.

[0032] Appendix Figure 15 This is a top view of the positioning pins in parts four to eight of this utility model.

[0033] Appendix Figure 16 For the appendix Figure 6 A magnified structural diagram at point B in the middle.

[0034] The codes in the attached diagram are as follows: 1 for bed, 2 for grinding base, 3 for cross slide, 4 for grinding axis, 5 for grinding wheel, 6 for grinding motor, 7 for grinding axis seat, 8 for vertical fixing plate, 9 for horizontal fixing plate, 10 for test base, 11 for positioning rod seat, 12 for positioning pin, 13 for positioning cylinder, 14 for test slide rail, 15 for feeding base, 16 for feeding cylinder, 17 for pushing cylinder, 18 for first feeding baffle, 19 for second feeding baffle, 20 for guide ramp, 21 for feeding seat, 22 for ejector seat, 23 for ejector cylinder, 24 for feeding slide rail, 25 for feeding support seat, 26 for feeding fixed seat, 27 for pushing slide rail, and 28 for pushing. 29 is the feed slider, 30 is the discharge hole, 31 is the pusher groove, 32 is the pusher plate, 33 is the connecting plate, 34 is the fixed base, 35 is the work turntable, 36 is the indexing machine, 37 is the opening and closing type pneumatic gripper, 38 is the positioning pin, 39 is the shaft seat, 40 is the geared motor, 41 is the mounting plate, 42 is the positioning claw, 43 is the spring, 44 is the chuck, 45 is the support plate, 46 is the adjusting screw, 47 is the fixed seat, 48 is the translation slide rail, 49 is the adjusting plate, 50 is the rotating groove, 51 is the first connecting seat, 52 is the guide sleeve, 53 is the second connecting seat, 54 is the dressing frame, 55 is the dressing motor, 56 is the dressing shaft, 57 is the dressing grinding wheel, and 58 is the pusher base. Detailed Implementation

[0035] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0036] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0037] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0038] Example 1: As shown in the attached document Figures 1 to 7 As shown, the drill bit grinding machine includes a bed 1, a drill bit positioning assembly, a grinding base 2, a grinding spindle 4, grinding wheels 5, a dressing mechanism, and a feeding assembly. A cross slide 3 is provided on the upper rear side of the bed 1, allowing the grinding base 2 to move left and right, and back and forth. A grinding spindle 4 is mounted on the upper front side of the grinding base 2. At least two grinding wheels 5 are fixedly mounted at intervals on the outer left side of the grinding spindle 4. A grinding motor 6 is mounted on the upper rear side of the grinding base 2. The right end of the output shaft of the grinding motor 6 is connected to the grinding wheel... The right end of shaft 4 is connected to the drive. The upper side of the bed 1, corresponding to the left position of the grinding base 2, is provided with a dressing mechanism that can dress the grinding wheel 5. The upper front part of the bed 1, corresponding to the position in front of the dressing mechanism, is provided with a drill bit positioning assembly. The drill bit positioning assembly is used to clamp the drill bit and adjust the angle between the drill bit cutting edge and the grinding wheel 5. The upper front part of the bed 1, corresponding to the position in front of the cross slide 3, is provided with a feeding assembly. The feeding assembly can move the shank of the drill bit into the drill bit positioning assembly.

[0039] According to the requirements, the right end of the output shaft of the grinding motor 6 is connected to the right end of the grinding shaft 4 through a pulley and belt drive. The feeding component can be the existing known technology, such as the feeding mechanism in a drill tip stepped mill disclosed in Chinese patent document CN219967327U, or the automatic feeding device in a fully automatic CNC drill bit grinding machine disclosed in Chinese patent document CN202894901U. Two grinding wheels 5 are fixedly installed on the outer left side of the grinding shaft 4 at left and right intervals.

[0040] In use, the drill bit to be ground is placed into the feeding assembly. When the feeding assembly is working, it pushes the drill bit shank into the drill bit positioning assembly. After the drill bit positioning assembly clamps the drill bit shank, it rotates a certain angle to adjust the angle between the drill bit's central axis and the center of the grinding wheel 5. In this way, the grinding wheel 5 can grind the drill bit's tip angle as needed. The drill bit positioning assembly causes the drill bit's cutting edge to swing up and down relative to the grinding wheel 5, so that the grinding wheel 5 can grind the drill bit's back angle as needed. The cross slide 3 allows the grinding base 2 to move back and forth and left and right. This allows the dressing mechanism to dress the outer side of the grinding wheel 5, thereby extending the service life of the grinding wheel 5. At least two grinding wheels 5 are fixedly installed on the left outer side of the grinding shaft 4 at intervals, which can grind the cutting edges of various specifications of drill bits. While ensuring the grinding of various specifications of drill bits, it can also ensure grinding efficiency.

[0041] The above-mentioned drill bit grinding machine can be further optimized and / or improved according to actual needs:

[0042] Example 2: As an optimization of the above examples, as shown in the appendix. Figures 1 to 4 As shown in Figures 6, 8 to 10, a test assembly is provided on the upper side of the grinding base 2. The test assembly includes a grinding shaft seat 7, a vertical fixing plate 8, a horizontal fixing plate 9, a test base 10, a positioning rod seat 11, a positioning pin 12, and a positioning cylinder 13. The grinding shaft seat 7, which is rotatably mounted on the outside of the grinding shaft 4, is fixedly installed on the upper side of the grinding base 2. The vertical fixing plate 8 is fixedly installed on the front side of the grinding shaft seat 7. The horizontal fixing plate 9 is fixedly installed on the front side of the vertical fixing plate 8. The test slide rail 14 is fixedly installed on the front side of the horizontal fixing plate 9. The test base 10 is slidably mounted on the outer side of the front part of the test slide rail 14. The positioning cylinder 13, which enables the test base 10 to move left and right, is fixedly installed on the right side of the horizontal fixing plate 9. The positioning rod seat 11 is fixedly installed on the front side of the test base 10. The positioning pin 12 is installed on the front part of the positioning rod seat 11.

[0043] According to the requirements, the front side of the vertical fixing plate 8 has 2*2 oblong through holes in a matrix. The front side of the horizontal fixing plate 9 has fixing holes corresponding to the oblong through holes. The fixing holes have fixing screws with fixing nuts screwed into them after passing through the oblong through holes. The oblong through holes can be used to adjust the vertical position of the horizontal fixing plate 9 so that the center of the drill bit is aligned with the left end of the positioning pin 12.

[0044] During use, the feeding assembly pushes the drill bit shank to be ground into the spindle of the indexing machine 36. Then, the piston rod of the positioning cylinder 13 extends, driving the test base 10 to move to the left. This causes the left end of the positioning pin 12 to move to the left and align with the center of the drill bit cutting edge. The spindle of the indexing machine 36 then clamps the drill bit shank, thus fixing drill bit shanks of different lengths and ensuring that the center of the drill bit cutting edge is in the same position. This allows for rapid grinding of drill bit cutting edges of different lengths. To monitor whether the piston rod of the positioning cylinder 13 has retracted into place, a proximity switch can be fixedly installed on the left side of the positioning cylinder 13. A sensing nut corresponding to the proximity switch is fixed to the right end of the positioning pin 12. After the positioning pin 12 has finished testing, the piston rod of the positioning cylinder 13 retracts. When the sensing nut approaches the proximity switch, the positioning cylinder 13 stops moving. This allows the positioning pin 12 to move to the right, providing space for the drill bit positioning assembly and preventing accidents caused by interference between the drill bit positioning assembly and the positioning pin 12 during operation.

[0045] Example 3: As an optimization of the above examples, as shown in the appendix. Figures 1 to 4As shown in 6, 11 to 13, the feeding assembly includes a feeding base 15, a feeding cylinder 16, a pushing cylinder 17, a pushing base 58, a guide slope 20, a feeding seat 21, a top seat 22, and a top cylinder 23. A left-right feeding slide rail 24 is fixedly installed on the upper front part of the bed 1, corresponding to the position in front of the positioning pin 12. The feeding base 15 is slidably installed on the upper part of the feeding slide rail 24. Behind the feeding slide rail 24, there is a structure that allows the feeding base 15 to move left-right. The feeding cylinder 16 moves to the right. A feeding support 25 is fixedly installed on the upper side of the feeding base 15. A feeding fixed seat 26 is fixedly installed on the front side of the feeding support 25. A front-to-back pushing slide rail 27 is installed on the upper side of the feeding fixed seat 26. A pushing slider 28 is fixedly installed on the lower side of the pushing base 58 and slidably installed on the upper part of the pushing slide rail 27. A pushing cylinder 17 that enables the pushing base 58 to move back and forth is fixedly installed on the front side of the feeding fixed seat 26.

[0046] The upper rear side of the pusher base 58 is provided with an adjustment groove that is narrower at the top and wider at the bottom. Two first feed baffles 18 are provided on the upper side of the pusher base 58 at intervals. Each first feed baffle 18 is fixedly installed with a feed slider 29 on the lower rear side. Each feed slider 29 is slidably installed in the adjustment groove. A second feed baffle 19 is fixedly installed on the rear side of each first feed baffle 18. Guide slope plates 20 can be detachably and fixedly installed on the sides of the first feed baffles 18 that are close to each other. The upper side of the guide slope plate 20 is inclined downward from front to back, and there is a gap between the rear side of the guide slope plate 20 and the front side of the second feed baffle 19. The rear side of the guide slope plate 20 and the front side of the second feed baffle 19 form a drop hole 30.

[0047] A feeding seat 21 is fixedly installed on the rear side of the feeding fixed seat 26 corresponding to the position below the second feeding baffle 19. The upper side of the feeding seat 21 is provided with a pusher groove 31 that runs through the left and right. A pusher plate 32 is slidably installed on the lower side of the feeding fixed seat 26 in the left and right direction. A top material seat 22 is slidably installed on the upper side of the feeding seat 21. A connecting plate 33 is fixedly installed between the rear side of the top material seat 22 and the rear side of the pusher plate 32. A top material cylinder 23 that enables the top material seat 22 to move left and right is fixedly installed on the right side of the feeding seat 21. When the top material seat 22 moves to the left, it can push the drill bit in the pusher groove 31 into the main shaft of the indexing machine 36.

[0048] The guide slope 20, the first feed baffle 18, and the second feed baffle 19 form a material box. In use, a drill bit with a grinding attachment is placed into the material box. After the piston rod of the pusher cylinder 17 extends, it drives the pusher base 58 to move backward along the front-to-back pusher slide rail 27. When the material box's drop hole 30 aligns with the pusher groove 31, the drill bit in the material box falls into the pusher groove 31. Then, the piston rod of the pusher cylinder 17 retracts, driving the pusher base 58 to move forward along the front-to-back pusher slide rail 27 to its initial position. Then, the ejector cylinder... The piston rod of cylinder 23 extends to push the drill bit in the pusher groove 31 into the main spindle of the indexing machine 36. When the length of the drill bit is small (less than the distance between the right end of the main spindle of the indexing machine 36 and the left side of the feed seat when the spindle is in a left-right direction), the piston rod of the feed cylinder 16 extends, causing the feed base 15 to move to the left, so that the left side of the feed base 21 and the main spindle of the indexing machine 36 move closer to each other, preventing the drill bit in the pusher groove 31 from falling onto the bed 1 after being pushed out by the piston rod of the pusher cylinder 23. This can meet the grinding operations of drill bits of various specifications.

[0049] According to the requirements, the upper part of the pusher groove 31 is rectangular and the lower part is V-shaped with the opening facing upward. The left end of the piston rod of the top cylinder 23 is fixedly installed together with the feed seat 21. A pusher head is fixedly installed on the lower left side of the feed seat 21. The upper left side of the pusher head is an inclined surface with the right side inclined upward relative to the left side. An arc-shaped (or trapezoidal with a wider top and narrower bottom or U-shaped with an upward opening) pressure rod is fixedly installed on the lower side of the pusher head, which facilitates the pushing of drill bits of various specifications.

[0050] To ensure the straightness of the pusher head when it moves left and right, a pusher guide rail is fixedly installed on the lower side of the feed seat 21, and at least one slider is provided on the upper side of the pusher plate 32 at intervals on the left and right sides, which is slidably installed on the outside of the pusher guide rail. In order to reduce the weight of the pusher plate 32, the pusher plate 32 is a frame structure or a hollow structure.

[0051] In order to make the piston rod of the top material cylinder 23 extend to a greater range, a base is fixedly installed on the lower side of the top material cylinder 23. The base is provided with several strip-shaped through holes. The base is fixedly installed together with the upper right side of the feed seat 21 by screws passing through the strip-shaped through holes. In order to facilitate the adjustment of the position of the base, the upper right side of the feed seat 21 is provided with scale markings.

[0052] The upper side of the pusher base 58 has several positioning through holes evenly spaced on the left and right. The first feed baffle 18 on the left is fixed to the upper side of the pusher base 58 by bolts installed in the positioning through holes on the left. The first feed baffle 18 on the right can be adjusted left and right and is fixed to the upper side of the pusher base 58 by bolts installed in one of the positioning through holes. This can change the distance between the first feed baffle 18 and the second feed baffle 19, thereby adjusting the width of the material box to accommodate drill bits of different lengths.

[0053] To facilitate adjustment of the width of the discharge hole 30, a base plate is fixed to the front side of each of the two first feed baffles 18. The inclination of the upper side of the base plate is the same as the inclination of the upper side of the guide slope plate 20. The guide slope plate 20 is detachably and fixedly installed on the rear side of the first feed baffle 18. This allows the length of the guide slope plate 20 to be adjusted according to different diameter drill bits, i.e., the distance between the rear side of the guide slope plate 20 and the front side of the second feed baffle 19 is adjusted, i.e., the width of the discharge hole 30 is adjusted, thereby satisfying the feeding of drill bits of different diameters.

[0054] The upper front side of the feed support 25 has 2*2 oblong holes arranged in a matrix. The lower front side of the feed fixing seat 26 has a fixing through hole corresponding to the oblong holes. The feed support 25 and the feed fixing seat 26 are fixed together by screws installed in the fixing through hole and the oblong hole. The oblong hole can adjust the height of the feed fixing seat 26, so that the height of the pusher groove 31 can be adjusted so that the height of the pusher groove 31 corresponds to the center line height of the main shaft of the indexing machine 36. In order to facilitate the adjustment of the height of the pusher groove 31, the upper left side of the feed support 25 is provided with scale markings.

[0055] The upper side of the feeding base 26 is provided with two back-to-back embedding slots spaced apart on the left and right. Each embedding slot is fixedly installed with a pusher slide rail 27. The pusher slider 28 is slidably installed on the upper part of the pusher slide rail 27. The lower side of the pusher base 58 is fixedly installed together with the upper side of the pusher slider 27. There is a gap between the lower side of the pusher base 58 and the upper side of the feeding base 26. This gap is smaller than the diameter of the drill bit. This can prevent the drill bit from falling into the gap from the drop hole when the pusher base 58 moves back and forth. The upper side of the feeding seat 21 is flush with the upper side of the feeding base 26. When the pusher base 58 moves backward and the drop hole aligns with the pusher groove 31, the drill bit enters the pusher groove 31 from the drop hole.

[0056] Example 4: As an optimization of the above examples, as shown in the appendix. Figures 1 to 7As shown in Figures 14, 15, and 16, the drill bit positioning assembly includes a fixed base 34, a worktable 35, an indexing machine 36, a translation component, an opening / closing pneumatic gripper 37, and a positioning pin 38. A fixed base 34 is fixedly installed on the upper left side of the bed 1, corresponding to the left position of the grinding axis 4. A worktable 35 is installed on the upper side of the fixed base 34. A fixed platform is installed on the upper side of the worktable 35. A bearing seat 39 is fixedly installed on the upper side of the fixed platform. A geared motor 40 is fixedly installed on the left side of the bearing seat 39. The right end of the output shaft of the geared motor 40 passes through the bearing seat 39. A mounting plate 41 is fixedly installed at the rear. An indexing machine 36 is provided on the right side of the mounting plate 41. A translation component is provided on the right side of the mounting plate 41, which enables the indexing machine 36 to reciprocate along the radial direction of the output shaft of the reduction motor 40. An opening and closing type pneumatic gripper 37 is fixedly installed on the upper rear side of the indexing machine 36. A positioning claw 42 is fixedly installed on each of the two fingers of the opening and closing type pneumatic gripper 37. A positioning pin 38 is fixedly installed on the lower side of the two positioning claws 42 that are close to each other. The two positioning pins 38 are symmetrically distributed about the central axis of the main shaft of the indexing machine 36.

[0057] As required, both locating pins 38 have guide heads at their close ends, with the outer surface of the guide heads being spherical crown surfaces. The rear end of the front locating pin 38 has a spherical crown-shaped guide head, and the rear part of the front guide head transitions to the front part of the front locating pin 38 through a conical surface that is larger at the front and smaller at the rear. Similarly, the front end of the rear locating pin 38 has a spherical crown-shaped guide head, and the front part of the rear guide head transitions to the rear part of the rear locating pin 38 through a conical surface that is smaller at the front and larger at the rear. This allows the guide heads to fit better against the inner wall of the drill bit's spiral groove, and when the guide heads are close together, they can clamp the drill bit, preventing the drill bit from loosening during grinding. The right side of the output shaft of the reduction motor 40 is rotatably mounted inside the bearing seat 39.

[0058] The lower part of the front positioning claw 42 is provided with a front connecting hole that runs through the front. The rear part of the front connecting hole has a front limiting step. The front outer side of the front positioning pin 38 has a front outer ring platform. The rear end of the front outer ring platform is in contact with the front limiting step. A front compression spring can also be installed between the rear end of the front outer ring platform and the front limiting step. The front end of the front outer ring platform is provided with a front set screw that is screwed into the inner side of the front part of the front connecting hole. Similarly, the lower part of the rear positioning claw 42 is provided with a rear connecting hole that runs through the front. The front part of the rear connecting hole has a rear limiting step. The rear outer side of the rear positioning pin 38 has a rear outer ring platform. The front end of the rear outer ring platform is in contact with the rear limiting step. A rear compression spring can also be installed between the front end of the rear outer ring platform and the rear limiting step. The rear end of the rear outer ring platform is provided with a rear set screw that is screwed into the inner side of the rear part of the rear connecting hole. This facilitates the installation and removal of the positioning pin 38 and also facilitates the adjustment of the distance between the two positioning pins 38.

[0059] The opening and closing type pneumatic gripper 37 is a known prior art, such as a 180-degree opening and closing pneumatic finger cylinder disclosed in Chinese patent document CN204300017U, or a parallel opening and closing type finger cylinder, or a compound Y-type pneumatic finger. In this embodiment, the opening and closing type pneumatic gripper 37 is a 180-degree gear-type finger cylinder-MHW2. The worktable 35 is a known prior art, such as an S08-AM8 servo motor and an HC90HP hydraulic turntable connected together. The output shaft of the S08-AM8 servo motor is connected to the input shaft of the HC90HP hydraulic turntable. The geared motor 40 is a known prior art, such as an S08-AM6 servo motor and a JDLB worm gear reducer connected together. The output shaft of the S08-AM6 servo motor and the input shaft of the JDLB worm gear reducer are connected together via a coupling. The indexing machine 36 is a known electric indexing head. The main shaft of the electric indexing head has an ER chuck for clamping drill bits.

[0060] In use, the shank of the drill bit is fixed inside the spindle of the indexing machine 36. The positioning pins 38, under the action of the opening and closing pneumatic grippers 37, respectively abut against the two helical grooves of the drill bit. The angle between the drill bit axis and the grinding wheel 5 in the horizontal plane can be adjusted by the working turntable 35, thereby adjusting the tip angle of the drill bit after grinding. The drill bit edge can be swung up and down by the reduction motor 40 and the working turntable 35, thereby adjusting the back angle of the drill bit after grinding. After the positioning pins 38 approach each other under the action of the opening and closing pneumatic grippers 37, they are located in the helical grooves of the drill bit and clamp the drill bit. This can achieve a positioning effect for drill bits with helical grooves, thus preventing the drill bit edge from rotating during the grinding process, which can improve the efficiency and grinding accuracy of the drill bit edge.

[0061] Example 5: As an optimization of the above examples, as shown in the appendix. Figures 1 to 4 As shown in Figures 6, 7, 14, and 16, the main spindle of the indexing machine 36 has a hollow structure. Two symmetrically distributed mounting surfaces are provided on the outer side of the front end of the main spindle of the indexing machine 36. A spring piece 43 is fixedly installed on each mounting surface, and there is a gap between the front parts of the spring pieces 43.

[0062] According to requirements, a chuck 44 is fixedly installed on the outer side of the front end of the indexing machine 36 spindle. Two mounting surfaces are symmetrically arranged on the outer side of the front end of the chuck 44. The lower part of the upper spring plate 43 is bent forward and upward, and the upper part of the lower spring plate 43 is bent forward and downward. The two spring plates 43 form a V-shape with openings facing away from each other (the two sides of the spring plate 43 are rounded). Each mounting surface is provided with a screw hole, and each spring plate 43 is provided with an oblong adjustment through hole. The adjusting screw piece of the spring plate 43 is screwed into the screw hole after passing through the adjustment through hole and is fixedly installed on the mounting surface. The adjustment through hole is oblong, so the distance between the front bends of the spring plates 43 can be adjusted. The distance between the front bends of the spring plates 43 is smaller than that of the indexing machine 36. When the length of the drill bit being ground is short (less than the length of the indexing machine 36 spindle), after the drill bit is clamped on the inner rear side of the indexing machine 36 spindle, the clamped drill bit cannot push the previously ground drill bit out of the indexing machine 36 spindle. In this way, during the rotation of the indexing machine 36 spindle, the drill bit left inside the indexing machine 36 spindle is prone to falling to other positions on the bed 1 and causing malfunction. The setting of the spring 43 can prevent the drill bit inside the indexing machine 36 spindle from accidentally falling out. After the drill bit is ground, the indexing machine 36 spindle is in the left-right position. Then, when a new drill bit is clamped, it can push the drill bit inside the indexing machine 36 spindle out of the gap between the two springs 43, so that the ground drill bit is collected in a concentrated manner.

[0063] To facilitate the centralized collection of drill bits, when the spindle of the indexing machine 36 rotates to the left-right position under the action of the worktable 35, a receiving box is fixedly installed on the upper left side of the bed 1, and a collecting plate is fixedly installed on the upper left side of the receiving box. The upper part of the collecting plate is tilted to the left relative to the lower part. In this way, the drill bits inside the spindle of the indexing machine 36 are pushed out and fall onto the collecting plate. Then the drill bits roll down along the collecting plate into the receiving box, which can concentrate and collect the ground drill bits.

[0064] Example 6: As an optimization of the above examples, as shown in the appendix Figures 1 to 4 As shown in Figures 6, 7, and 16, the translation assembly includes a support plate 45, a translation slide rail 48, an adjusting screw 46, and a fixed base 47. The rear left side of the support plate 45 is fixedly installed together with the right side of the mounting plate 41. The translation slide rail 48 is fixedly installed on the right side of the support plate 45. The cross-section of the translation slide rail 48 gradually narrows from right to left. The right side of the fixed base 47 is fixedly installed together with the left side of the indexing machine 36. The left side of the fixed base 47 is provided with a translation groove that matches the slide rail. The translation slide rail 48 is slidably installed in the translation groove. An adjusting plate 49 is fixedly installed on the front side of the support plate 45. The right side of the adjusting plate 49 is provided with a rotating groove 50 that runs through the front and back. The front side of the fixed base 47 corresponding to the position of the rotating groove 50 is provided with an adjusting screw hole. The adjusting screw 46 is rotatably installed in the rotating groove 50. The rear part of the adjusting screw 46 is screwed into the adjusting screw hole.

[0065] According to the requirements, the cross-section of the slide rail and the slide groove is a trapezoid with a narrow left and a wide right. A limiting ring is fixed on the outside of the adjusting screw 46 at the rear position of the adjusting plate 49. The right end of the head of the adjusting screw 46 is in contact with the front side of the adjusting plate 49. The rotating groove 50 is U-shaped with the opening to the right, which facilitates the disassembly and assembly of the adjusting screw 46. After rotating the adjusting screw 46, the fixed seat 47 can move back and forth.

[0066] During use, the shank of the drill bit is fixed inside the spindle of the indexing machine 36. By rotating the adjusting screw 46, the fixed seat 47 and the indexing machine 36 move back and forth along the slide rail. This allows the distance between the drill bit edge and the grinding wheel 5 to be adjusted according to different lengths of drill bits, enabling rapid grinding of drill bit edges of different specifications in batches, thus improving grinding efficiency.

[0067] Example 7: As an optimization of the above examples, as shown in the appendix. Figures 1 to 4 As shown in Figures 6, 7, 14, and 16, a first connecting seat 51 is fixedly installed on the rear left side of the indexing machine 36, and a guide sleeve 52 is fixedly installed on the right side of the first connecting seat 51. The guide sleeve 52 is located between the rear of the main shaft of the indexing machine 36 and the front of the positioning claw 42.

[0068] According to the requirements, the front left side of the first connecting seat 51 is provided with a through hole that runs through the left and right sides. The front outer side of the guide sleeve 52 is fitted into the through hole. The rear of the first connecting seat 51 is provided with a fixing screw hole that communicates with the through hole. A fixing bolt with its front end abutting against the outer side of the guide sleeve 52 is screwed into the fixing screw hole. Tightening the fixing bolt makes the central axis of the guide sleeve 52 collinear with the central axis of the spindle of the indexing machine 36. In this way, a matching guide sleeve 52 can be selected according to different specifications of drill bits. When it is not possible to use the locating pin 38 for positioning deep hole drills or other drill bits, such as tapered hole drill bits, the guide sleeve 52 can be used for positioning. This allows the drill bit to be positioned during the grinding process of various drill bit edges, which can increase the range of applications.

[0069] A second connecting seat 53 is fixedly installed on the upper rear side of the indexing machine 36. The upper side of the second connecting seat 53 has two guide grooves that are open to the left and right and have upward openings. The guide grooves are inverted T-shaped, narrow at the top and wide at the bottom. The upper side of the opening and closing type pneumatic gripper 37 corresponding to each guide groove position has a connecting hole that is open to the top and bottom. Each guide groove has a connecting screw with a nut screwed on after the upper end passes through the corresponding connecting hole. The connecting screw can be a hexagonal head bolt or a slot bolt, which facilitates the disassembly and assembly of the opening and closing type pneumatic gripper 37.

[0070] Example 8: As an optimization of the above examples, as shown in the appendix Figures 1 to 4As shown in Figure 6, the dressing mechanism includes a dressing frame 54, a dressing motor 55, a dressing shaft 56, and a dressing grinding wheel 57. The dressing frame 54 is fixedly installed on the upper rear side of the bed 1. The right side of the dressing frame 54 has a U-shaped notch with an opening facing forward. The outer left side of the grinding shaft 4 is located in the notch. The dressing shaft 56 is rotatably installed in the dressing frame 54 corresponding to the position behind the grinding shaft 4. The dressing grinding wheel 57 is fixedly installed on the outer right side of the dressing shaft 56. The dressing motor 55 is fixedly installed on the upper side of the dressing frame 54. The left end of the output shaft of the dressing motor 55 is connected to the left end of the dressing shaft 56.

[0071] During use, by setting a U-shaped notch with the opening facing forward, the cross slide 3 can drive the grinding shaft 4 to move back and forth and left and right, so that each grinding wheel 5 on the outer left side of the grinding shaft 4 can correspond to the dressing wheel 57. In this way, the dressing wheel 57 can dress the outer circle of the grinding wheel 5, thereby extending the service life of the grinding wheel 5. As needed, the left end of the output shaft of the dressing motor 55 is connected to the left end of the dressing shaft 56 through a pulley and belt drive.

[0072] The above technical features constitute various embodiments of this utility model, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A drill bit grinding machine, characterized in that... The machine includes a bed, a drill bit positioning assembly, a grinding base, a grinding spindle, grinding wheels, a dressing mechanism, and a feeding assembly. A cross slide is located on the upper rear side of the bed, allowing the grinding base to move left and right, and forward and backward. A grinding spindle is mounted on the upper front side of the grinding base. At least two grinding wheels are fixedly mounted at intervals on the outer left side of the grinding spindle. A grinding motor is mounted on the upper rear side of the grinding base, with the right end of the grinding motor's output shaft connected to the right end of the grinding spindle. A dressing mechanism for dressing the grinding wheels is located on the upper front side of the bed corresponding to the left side of the grinding base. A drill bit positioning assembly is located on the upper front side of the bed corresponding to the dressing mechanism, used to clamp the drill bit and adjust the angle between the drill bit cutting edge and the grinding wheel. A feeding assembly is located on the upper front side of the bed corresponding to the cross slide, capable of moving the shank of the drill bit into the drill bit positioning assembly.

2. The drill bit grinding machine according to claim 1, characterized in that... A testing assembly is provided on the upper side of the grinding base. The testing assembly includes a grinding spindle seat, a vertical fixing plate, a horizontal fixing plate, a testing base, a positioning rod seat, a positioning pin, and a positioning cylinder. A grinding spindle seat, which is rotatably mounted on the outside of the grinding spindle, is fixedly installed on the upper side of the grinding base. A vertical fixing plate is fixedly installed on the front side of the grinding spindle seat. A horizontal fixing plate is fixedly installed on the front side of the vertical fixing plate. A testing slide rail is fixedly installed on the front side of the horizontal fixing plate. The testing base is slidably mounted on the outer side of the front part of the testing slide rail. A positioning cylinder that enables the testing base to move left and right is fixedly installed on the right side of the horizontal fixing plate. A positioning rod seat is fixedly installed on the front side of the testing base. A positioning pin is installed on the front part of the positioning rod seat.

3. The drill bit grinding machine according to claim 2, characterized in that... The feeding assembly includes a feeding base, a feeding cylinder, a pushing cylinder, a pushing base, a guide slope, a feeding seat, a top feeding seat, and a top feeding cylinder. A left-right feeding slide rail is fixedly installed on the upper front part of the bed corresponding to the position in front of the positioning pin. A feeding base is slidably installed on the upper part of the feeding slide rail. A feeding cylinder is located behind the feeding slide rail, enabling the feeding base to move left and right. A feeding support seat is fixedly installed on the upper side of the feeding base. A feeding fixed seat is fixedly installed in front of the feeding support seat. A front-back pushing slide rail is installed on the upper side of the feeding fixed seat. A pushing slider is slidably installed on the upper part of the pushing slide rail on the lower side of the pushing base. A pushing cylinder is fixedly installed in front of the feeding fixed seat, enabling the pushing base to move back and forth. An adjustment groove, narrower at the top and wider at the bottom, is located on the upper rear part of the pushing base. Two first feeding baffles are spaced apart on the left and right sides of the upper side of the pushing base. A feeding cylinder is fixedly installed on the lower rear side of each first feeding baffle. The feeding slide block is slidably installed in the adjustment groove. A second feeding baffle is fixedly installed on the rear side of each first feeding baffle. Guide slope plates are detachably and fixedly installed on the adjacent sides of the first feeding baffles. The upper side of the guide slope plate slopes downward from front to back, and there is a gap between the rear side of the guide slope plate and the front side of the second feeding baffle. The rear side of the guide slope plate and the front side of the second feeding baffle form a material drop hole. A feeding seat is fixedly installed on the rear side of the feeding fixed seat corresponding to the position below the second feeding baffle. A push groove that runs through the left and right is provided on the upper side of the feeding seat. A push plate is slidably installed on the lower side of the feeding fixed seat along the left and right direction. A top material seat is slidably installed on the upper side of the feeding seat. A connecting plate is fixedly installed between the rear side of the top material seat and the rear side of the push plate. A top material cylinder that enables the top material seat to move left and right is fixedly installed on the right side of the feeding seat. When the top material seat moves to the left, it can push the drill bit in the push groove into the main shaft of the indexing machine.

4. The drill bit grinding machine according to claim 1, 2, or 3, characterized in that... The drill bit positioning assembly includes a fixed base, a worktable, an indexing machine, a translation component, an openable / closeable pneumatic gripper, and positioning pins. A fixed base is fixedly installed on the upper left side of the bed, corresponding to the left side of the grinding axis. A worktable is installed on the upper side of the fixed base. A fixed platform is installed on the upper side of the worktable. A shaft seat is fixedly installed on the upper side of the fixed platform. A geared motor is fixedly installed on the left side of the shaft seat. The right end of the geared motor's output shaft passes through the shaft seat and is fixedly mounted on a mounting plate. An indexing machine is located to the right of the mounting plate. A translation component is located on the right side of the mounting plate, enabling the indexing machine to reciprocate along the radial direction of the geared motor's output shaft. An openable / closeable pneumatic gripper is fixedly installed on the upper rear side of the indexing machine. Positioning claws are fixedly installed on both fingers of the openable / closeable pneumatic gripper. Positioning pins are fixedly installed on the lower, adjacent sides of the two positioning claws. The two positioning pins are symmetrically distributed about the central axis of the indexing machine spindle.

5. The drill bit grinding machine according to claim 4, characterized in that... The indexing machine spindle has a hollow structure. There are two symmetrically distributed mounting surfaces on the outer side of the front end of the indexing machine spindle. Each mounting surface is fixedly mounted with a spring, and there is a gap between the front parts of the springs.

6. The drill bit grinding machine according to claim 4, characterized in that... The translation assembly includes a support plate, a translation slide rail, an adjusting screw, and a fixed base. The rear left side of the support plate is fixedly installed together with the right side of the mounting plate. The right side of the support plate is fixed with the translation slide rail, the cross-section of which gradually narrows from right to left. The right side of the fixed base is fixedly installed together with the left side of the indexing machine. The left side of the fixed base is provided with a translation groove that matches the slide rail. The translation slide rail is slidably installed in the translation groove. An adjusting plate is fixedly installed on the front side of the support plate. The right side of the adjusting plate is provided with a rotating groove that runs through the front and back. The front side of the fixed base corresponding to the position of the rotating groove is provided with an adjusting screw hole. An adjusting screw is rotatably installed in the rotating groove. The rear part of the adjusting screw is screwed into the adjusting screw hole. Or / and, a first connecting seat is fixedly installed on the rear left side of the indexing machine, and a guide sleeve is fixedly installed on the right side of the first connecting seat. The guide sleeve is located between the rear of the indexing machine spindle and the front of the positioning claw.

7. The drill bit grinding machine according to claim 5, characterized in that... The translation assembly includes a support plate, a translation slide rail, an adjusting screw, and a fixed base. The rear left side of the support plate is fixedly installed together with the right side of the mounting plate. The right side of the support plate is fixed with the translation slide rail, the cross-section of which gradually narrows from right to left. The right side of the fixed base is fixedly installed together with the left side of the indexing machine. The left side of the fixed base is provided with a translation groove that matches the slide rail. The translation slide rail is slidably installed in the translation groove. An adjusting plate is fixedly installed on the front side of the support plate. The right side of the adjusting plate is provided with a rotating groove that runs through the front and back. The front side of the fixed base corresponding to the position of the rotating groove is provided with an adjusting screw hole. An adjusting screw is rotatably installed in the rotating groove. The rear part of the adjusting screw is screwed into the adjusting screw hole. Or / and, a first connecting seat is fixedly installed on the rear left side of the indexing machine, and a guide sleeve is fixedly installed on the right side of the first connecting seat. The guide sleeve is located between the rear of the indexing machine spindle and the front of the positioning claw.

8. The drill bit grinding machine according to claim 1, 2, 3, 5, 6, or 7, characterized in that... The dressing mechanism includes a dressing frame, a dressing motor, a dressing shaft, and a dressing grinding wheel. The dressing frame is fixedly installed on the upper rear side of the machine tool. The right side of the dressing frame has a U-shaped notch with an opening facing forward. The outer left side of the grinding shaft is located inside the notch. The dressing shaft is rotatably installed in the dressing frame corresponding to the position behind the grinding shaft. The dressing grinding wheel is fixedly installed on the outer right side of the dressing shaft. The dressing motor is fixedly installed on the upper side of the dressing frame. The left end of the output shaft of the dressing motor is connected to the left end of the dressing shaft.

9. The drill bit grinding machine according to claim 4, characterized in that... The dressing mechanism includes a dressing frame, a dressing motor, a dressing shaft, and a dressing grinding wheel. The dressing frame is fixedly installed on the upper rear side of the machine tool. The right side of the dressing frame has a U-shaped notch with an opening facing forward. The outer left side of the grinding shaft is located inside the notch. The dressing shaft is rotatably installed in the dressing frame corresponding to the position behind the grinding shaft. The dressing grinding wheel is fixedly installed on the outer right side of the dressing shaft. The dressing motor is fixedly installed on the upper side of the dressing frame. The left end of the output shaft of the dressing motor is connected to the left end of the dressing shaft.

Images