CN111451850A

CN111451850A - Drill bit grinding machine

Info

Publication number: CN111451850A
Application number: CN202010418290.7A
Authority: CN
Inventors: 颜宁宁; 颜敏当
Original assignee: Zhejiang Taixing Intelligent Equipment Co ltd
Current assignee: Zhejiang Taixing Intelligent Equipment Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-07-28

Abstract

The invention belongs to the technical field of grinding machines, and provides a drill bit grinding machine which comprises a machine base, a spindle box arranged at the rear end part of the upper surface of the machine base and a grinding wheel arranged on the spindle box and driven by a motor, wherein a large bottom plate arranged at the front end part of the upper surface of the machine base is fixedly provided with a lower dragging plate, the lower dragging plate is provided with an upper cover plate which slides along the longitudinal direction of the lower dragging plate, the upper cover plate is provided with a rotating mechanism and a grinding seat which is arranged on the rotating mechanism and has an adjustable angle, the spindle box corresponding to the grinding seat is provided with a first lens and a second lens, the first lens and the second lens are respectively used for capturing the position of a tip angle of a drill bit on the grinding seat and the position of a. The invention has the advantages that: the automatic program controls the drill to grind, manually adjusts various front and back angles of the drill, greatly reduces the regrinding requirement and stability of the drill, reduces program hardening, and increases random operation angles.

Description

Drill bit grinding machine

Technical Field

The invention belongs to the technical field of grinding machines, and particularly relates to a drill bit grinding machine.

Background

The small drill bit grinding machine grinds a new drill bit after being worn, so that the drill bit can be repeatedly ground and used, and the service life of the drill bit is prolonged. The grinding machine on the market at present is because the complete machine is with high costs, also be a use cost not small to current little enterprise, consequently the purchase rate of utilization of weakening consumer, fall over and become the hindrance of selling, ordinary grinding machine only provides a position angle that can grind, when needing to grind different position angles, must establish the angle of drill bit again, and grind again according to the position adjustment of difference, need to regrind again when the user constantly changes the drill bit core thickness, cause the waste of time, it is inconvenient to use, it is low to grind the precision.

Disclosure of Invention

The invention aims to provide a drill bit grinding machine with better grinding effect.

The purpose of the invention is realized as follows:

a drill bit grinder comprises a base, a main shaft box arranged at the rear end part of the upper surface of the base and a grinding wheel arranged on the main shaft box and driven by a motor, the main spindle box can be driven by a motor to transversely move along the rear end part of the upper surface of the machine base, a large bottom plate arranged at the front end part of the upper surface of the machine base is fixedly provided with a lower dragging plate, the lower dragging plate is provided with an upper cover plate which slides along the longitudinal direction of the lower dragging plate, the upper cover plate is provided with a rotating mechanism and a grinding seat which is arranged on the rotating mechanism and has adjustable angle, the grinding seat is provided with a clamping cylinder for clamping a drill bit, a first lens and a second lens are arranged on the spindle box corresponding to the grinding seat, the first lens and the second lens are respectively used for capturing the position of the tip angle of the drill bit and the cutting edge of the drill bit on the grinding seat, the base is provided with a display screen matched with the first lens and the second lens, and the rear end part of the base, which is positioned on one side of the grinding wheel, is provided with a grinding wheel dressing mechanism.

Through adopting above-mentioned technical scheme, set up the clear demonstration drill bit grinding accuracy of twin-lens camera, ensure the quality of grinding, show through P L C program control multiaxis linkage twin-lens, including cross guide rail slip table, accomplish the drill bit efficiency of grinding once more, and lateral shifting through the headstock, the longitudinal sliding of upper cover plate with, the rotation of rotary mechanism and the angularly adjustable realization multi-azimuth of many drill bits of grinding seat, the adjustment of multi-angle, make the angle of adjustment more accurate, the grinding precision is higher, the grinding effect is better.

The invention is further provided that the rotating mechanism comprises a rotating block which is rotatably arranged on the upper cover plate, a gland which is fixed on the rotating block and a vertical plate which is arranged on the gland, positioning holes with axes on the same straight line are respectively arranged on the upper cover plate, the rotating block and the gland, a positioning shaft is arranged in the positioning holes, the rotating block and the gland can rotate on the upper cover plate around the positioning shaft, and a first spanner which locks the rotating block and the gland on the upper cover plate is arranged at one end of the positioning shaft.

Through adopting above-mentioned technical scheme, realize the rotation of rotatory piece on the upper cover plate, be convenient for turn to the adjustment, improve the adjustment accuracy of whole machine of grinding.

The grinding device is further provided with an arc-shaped sliding groove arranged on the vertical plate, a sliding block matched with the arc-shaped sliding groove to slide is arranged on the grinding seat, and a second spanner used for locking the arc-shaped sliding block in the arc-shaped sliding groove is arranged on the other side of the vertical plate.

Through adopting above-mentioned technical scheme for grind the seat and can slide from top to bottom in the circular arc inslot in certain angle, be convenient for grind the position adjustment of seat, improve the adjustment accuracy of whole machine of grinding.

The invention is further provided with a machine base upper surface limiting assembly on one side surface of the rotating block, wherein the limiting assembly comprises a base plate and a pushing handle.

Through adopting above-mentioned technical scheme, spacing subassembly plays the limiting displacement to rotatory piece, prevents that rotatory piece from excessively rotating.

The grinding device is further provided with a rotating disc arranged on the grinding seat, one side of the rotating disc is provided with an extension rod, the clamping cylinder is arranged at the end of the extension rod, and the other side of the rotating disc is provided with a closed-loop motor and is driven to rotate by the closed-loop motor.

The invention is further arranged in such a way that a cross guide rail is arranged on the lower carriage, an upper cover plate is arranged on the lower carriage in a sliding way through the cross guide rail, a supporting block is arranged on the side edge of the upper cover plate, an adjusting rod is arranged in the supporting block in a penetrating way and is in threaded connection with the supporting block, a hand wheel is arranged at one end of the adjusting rod, a fine adjusting rod which is arranged in the supporting block in a penetrating way and is in threaded connection with the supporting block is arranged at the other end of the supporting block, and one end of the fine adjusting rod is connected with.

By adopting the technical scheme, the upper cover plate can longitudinally move on the lower carriage, so that the position of the grinding seat can be conveniently adjusted, and the adjustment accuracy of the whole grinding machine is improved.

The grinding wheel dressing mechanism further comprises a fixing assembly arranged on the spindle box and a sliding table arranged on the fixing assembly, wherein the sliding table is provided with a stand column which slides back and forth along the sliding table, the upper part of the stand column is provided with a clamping element used for clamping a sand stone strip, and one side of the sliding table is respectively provided with a second fine adjustment rod used for adjusting the sliding table to slide back and forth and a limiting block used for limiting the position of the sliding table.

Through adopting above-mentioned technical scheme, the emery wheel is maintained the mechanism and is set up the convenience and restoreed the emery wheel, improves the life of grinding machine.

The invention is further provided that the fixing assembly comprises a fixing plate, a side plate and a supporting plate, the fixing plate is fixedly arranged on the spindle box, the fixing plate, the side plate and the supporting plate are respectively and vertically arranged, and the sliding table is arranged on the supporting plate.

The invention is further provided that the first lens is arranged in the spindle box, the second lens is arranged on the base through the vertical rod, and the first lens and the second lens are arranged vertically.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

1. the invention controls the drill bit to grind by a grinder provided with a stepping, closed-loop and variable-frequency motor with three shafts moving simultaneously and an automatic program, manually adjusts various front and back angles of the drill bit, greatly reduces the regrinding requirement and stability of the drill bit, reduces program hardening and increases random operation angles.

2. According to the invention, the grinding accuracy of the drill bit is clearly displayed by arranging the double-lens camera, the grinding quality is ensured, the multi-axis linkage double-lens display is controlled by a P L C program, and the secondary grinding efficiency of the drill bit is completed by adding the cross guide rail sliding table.

3. According to the invention, the grinding wheel dressing mechanism is arranged, so that the flatness of the surface of the grinding wheel is convenient to repair, the grinding precision of the grinding wheel is improved, the service life of the grinding wheel is prolonged, the service life of the whole grinding machine is prolonged, and the production cost is reduced.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a partial schematic view of the present invention.

Fig. 3 is a partial schematic view of the present invention.

The names of the parts corresponding to the reference numbers in the drawings are as follows: 1. a machine base; 2. a main spindle box; 3. a grinding wheel; 4. a large bottom plate; 5. a lower carriage; 6. an upper cover plate; 7. a grinding seat; 8. a clamping cylinder; 9. a first lens; 10. a second lens; 11. a display screen; 12. rotating the block; 13. a gland; 14. a vertical plate; 15. positioning holes; 16. positioning the shaft; 17. a first wrench; 18. a circular arc chute; 19. a slider; 20. a second wrench; 21. a base plate; 22. a pushing handle; 23. rotating the disc; 24. an extension pole; 25. a closed-loop motor; 26. a support block; 27. an adjusting lever; 28. a hand wheel; 29. a first fine adjustment lever; 30. a fixed block; 31. a sliding table; 32. a column; 33. a clamping member; 34. a second fine adjustment lever; 35. a limiting block; 36. a fixing plate; 37. a side plate; 38. and (7) a supporting plate.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 3:

the utility model provides a drill bit grinds machine, includes frame 1, sets up headstock 2 at 1 upper surface rear end of the frame and sets up emery wheel 3 by motor drive on headstock 2, above-mentioned headstock 2 can be by motor drive along 1 upper surface rear end lateral shifting of frame, fixedly on the big bottom plate 4 that the tip was equipped with before 1 upper surface of the frame was provided with lower planker 5, be equipped with on the above-mentioned lower planker 5 along the upper cover plate 6 of 5 longitudinal sliding of planker down, concrete structure is: the lower dragging plate 5 is provided with a cross guide rail, the upper cover plate 6 is arranged on the lower dragging plate 5 in a sliding manner through the cross guide rail, the side edge of the upper cover plate 6 is provided with a supporting block 26, an adjusting rod 27 is arranged in the supporting block 26 in a penetrating manner and is in threaded connection with the supporting block 26, one end of the adjusting rod 27 is provided with a hand wheel 28, the other side of the supporting block 26 is provided with a fine adjustment rod which is arranged in the supporting block 26 in a penetrating manner and is in threaded connection with the supporting block 26, and one end of the fine adjustment rod is connected with a fixing block. The upper cover plate 6 is provided with a rotating mechanism and a grinding seat 7 which is arranged on the rotating mechanism and has an adjustable angle, and the grinding seat 7 is provided with a clamping cylinder 8 for clamping a drill bit; preferably, the grinding seat 7 is provided with a rotating disc 23, one side of the rotating disc 23 is provided with an extension rod 24, the clamping cylinder 8 is arranged at the end of the extension rod 24, and the other side of the rotating disc 23 is provided with a closed-loop motor 25 and driven to rotate by the closed-loop motor 25. The spindle box 2 corresponding to the grinding seat 7 is provided with a first lens 9 and a second lens 10, the first lens 9 and the second lens 10 are respectively used for capturing the position of the front end angle of a drill bit and the cutting edge of the drill bit on the grinding seat 7, the base 1 is provided with a display screen 11 matched with the first lens 9 and the second lens 10, preferably, the first lens 9 is arranged in the spindle box 2, the second lens 10 is arranged on the base 1 through a vertical rod, and the first lens 9 and the second lens 10 are arranged perpendicular to each other.

The rotating mechanism comprises a rotating block 12 rotatably arranged on the upper cover plate 6, a gland 13 fixed on the rotating block 12 and a vertical plate 14 arranged on the gland 13, wherein the upper cover plate 6, the rotating block 12 and the gland 13 are respectively provided with a positioning hole 15 with axes on the same straight line, a positioning shaft 16 is arranged in the positioning hole 15, the rotating block 12 and the gland 13 can rotate on the upper cover plate 6 around the positioning shaft 16, and one end of the positioning shaft 16 is provided with a first wrench 17 for locking the rotating block 12 and the gland 13 on the upper cover plate 6.

The vertical plate 14 is provided with an arc-shaped sliding groove 18, the grinding seat 7 is provided with a slide block 19 which is matched with the arc-shaped sliding groove 18 to slide, and the other side of the vertical plate 14 is provided with a second wrench 20 which is used for locking the arc-shaped slide block 19 in the arc-shaped sliding groove 18.

And the limiting component is arranged on the upper surface of the machine base 1 on one side surface of the rotating block 12 and comprises a backing plate 21 and a push handle 22.

The invention is provided with the grinding wheel 3 and maintained the organization on the back end of the bed frame 1 of one side of grinding wheel 3, the above-mentioned grinding wheel 3 maintained the organization and included setting up on headstock 2 fixed assembly and setting up the slip table 31 on the fixed assembly, there are pillars 32 sliding back and forth along the slip table 31 on the above-mentioned slip table 31, the upper portion of the pillar 32 has clamping pieces 33 used for clamping the sand stone strip, there are second fine adjustment levers 34 used for adjusting the slip table 31 to slide back and forth and limited blocks 35 limiting the position of the slip table 31 separately on one side of the above-mentioned slip table 31; the fixing assembly comprises a fixing plate 36, a side plate 37 and a supporting plate, the fixing plate 36 is fixedly arranged on the spindle box 2, the fixing plate 36, the side plate 37 and the supporting plate are respectively and vertically arranged, and the sliding table 31 is arranged on the supporting plate.

The invention relates to a using method for grinding a drill bit, which comprises the following steps:

the drill machine mainly grinds a front end angle, a back angle and a cutting edge of a drill, and comprises the following grinding steps: before tool setting, a key cylinder is started by pressing, then the first lens 9 and the second lens 10 are made to respectively display the states of the drill bits, and then the tool setting is carried out.

Tool setting in the first step: the drill bit is clamped on the extension rod 24 by the corresponding clamping cylinder 8, the outside is exposed by about 8-13 mm, the second wrench 20 is loosened, and the grinding seat 7 slides downwards to an arc groove with an angle of 3-5 degrees and is locked. The first wrench 17 is loosened, the position of the rotating block 12 is stopped at 120 degrees, and the first wrench 17 is locked.

And secondly, the drill bit displayed on the display screen 11 of the first lens 9 and the red tool setting limit of the display screen 11 screen are checked, the wrench is loosened, the closed-loop motor 25 is adjusted to stretch back and forth to be level with the red line, and then the wrench is locked.

And thirdly, judging whether the drill bit cutting edge displayed on the display screen 11 of the second lens 10 is relatively parallel to the red line or not, if not, pressing a touch screen and a manual key, pressing an A < + > button to enable the drill bit cutting edge to be lifted to be parallel to the red line, resetting for three seconds by long pressing a coordinate, pressing an automatic key again after displaying zero, starting the grinding wheel 3 to automatically grind the included angle of the end angle of 120 degrees, repeatedly grinding the single edge twice, then automatically rotating for 180 degrees to repair for a second time, and automatically stopping.

And fourthly, loosening the second wrench 20 to enable the grinding seat 7 to slide downwards to the arc groove to be locked between 10 degrees and 15 degrees, pressing a start key to start moving the grinding rear angle, grinding the grinding wheel 3 to automatically shift twice by single-side repeated grinding, automatically rotating the closed-loop motor 25 by 180 degrees to grind the rear angle of the other edge, and grinding the two rear angles until the two rear angles are stopped.

And fifthly, loosening the second wrench 20 to enable the grinding seat 7 to slide down to the position where the arc groove is marked to be 25-30 degrees for locking, and starting by pressing the central key. The grinding wheel 3 is stopped at the position of the drill bit central groove, the upper cover plate 6 moves forwards to the position of the fine adjustment rod for limiting and abutting by manually rotating the hand wheel 28, the center of the drill bit is grooved on the edge of the grinding wheel 3, and the depth of the groove can be adjusted to reach the desired depth through the first fine adjustment rod 29. Then the center key is pressed again to withdraw, the closed-loop motor 25 automatically rotates 180 degrees, and the hand wheel 28 is manually rotated to enable the upper cover plate 6 to move forward to grind the center of the slot. After the grinding of the two central grooves is stopped, the screen displays the grinding surface of the drill bit, if the central groove is shallow, the grinding trial amount of the first fine adjusting rod 29 can be finely adjusted to be increased, the step is repeated according to the central key, and the grinding is stopped.

Secondly, the use method of the grinding wheel 3 comprises the following steps:

the first step is as follows: before the grinding wheel 3 is dressed, the grinding wheel 3 dressing mechanism is fixed on the machine base 1 and locked, and the grinding wheel 3 cover and the gear cover screw are fastened. Then the distance between the cross section of the grinding wheel 3 and the space 1 m-2 m of the oilstone strip is observed, the side face is locked, and the distance between the grinding wheels 3 is finely adjusted on the left side of the oilstone strip.

The second step is that: lightly pressing a key of a grinding wheel 3 of the touch screen, moving a motor of the grinding wheel 3 left and right under program control, simultaneously manually finely adjusting the grinding amount of the grinding wheel 3, feeding the cutter for each time within 0.05-0.1, and after the cutter is repaired within a set time, finely grinding the grinding wheel 3 to 0.02m until the cutter stops. It is then observed whether the corner points of the grinding wheel 3 have also been repaired. If not, the section is repeatedly trimmed by the same steps.

The third step: after the grinding wheel 3 is repaired, the distance between the grinding amount limiting line (red line of the display screen 11) and the plane of the grinding wheel 3 is adjusted properly. Firstly, the fine adjustment hand wheel 28 is fed forwards, so that the red line of the display screen 11 is on the plane of the grinding wheel 3, and the grinding amount is between the end face of the grinding wheel 3 and the parallel line.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. Drill grinder, including frame (1), set up headstock (2) and the emery wheel (3) of setting by motor drive on headstock (2) at frame (1) upper surface rear end portion, its characterized in that: the spindle box (2) can be driven by a motor to transversely move along the rear end part of the upper surface of the machine base (1), a large bottom plate (4) arranged at the front end part of the upper surface of the machine base (1) is fixedly provided with a lower carriage (5), an upper cover plate (6) which longitudinally slides along the lower carriage (5) is arranged on the lower carriage (5), the upper cover plate (6) is provided with a rotating mechanism and a grinding seat (7) which is arranged on the rotating mechanism and has an adjustable angle, a clamping cylinder (8) used for clamping a drill bit is arranged on the grinding seat (7), the spindle box (2) corresponding to the grinding seat (7) is provided with a first lens (9) and a second lens (10), the first lens (9) and the second lens (10) are respectively used for capturing the position of the tip angle of the drill bit on the grinding seat (7) and the cutting edge of the drill bit, the machine base (1) is provided with a display screen (11) which is matched with, and a grinding wheel (3) trimming mechanism is arranged on the rear end part of the machine base (1) on one side of the grinding wheel (3).

2. The drill grinder of claim 1, wherein: the rotating mechanism comprises a rotating block (12) rotatably arranged on an upper cover plate (6), a gland (13) fixed on the rotating block (12) and a vertical plate (14) arranged on the gland (13), positioning holes (15) with axes on the same straight line are respectively formed in the upper cover plate (6), the rotating block (12) and the gland (13), a positioning shaft (16) is arranged in the positioning holes (15), the rotating block (12) and the gland (13) can rotate on the upper cover plate (6) around the positioning shaft (16), and a first locking piece for locking the rotating block (12) and the gland (13) on the upper cover plate (6) is arranged at one end of the positioning shaft (16).

3. The drill grinder of claim 2, wherein: the grinding device is characterized in that an arc-shaped sliding groove (18) is formed in the vertical plate (14), a sliding block (19) matched with the arc-shaped sliding groove (18) to slide is arranged on the grinding seat (7), and a second locking piece used for locking the arc-shaped sliding block (19) in the arc-shaped sliding groove (18) is arranged on the other side of the vertical plate (14).

4. The drill grinder of claim 2, wherein: the upper surface limiting assembly of the machine base (1) on one side surface of the rotating block (12) comprises a base plate (21) and a pushing handle (22).

5. The drill grinder of claim 1, wherein: the grinding machine is characterized in that a rotating disc (23) is arranged on the grinding seat (7), an extension rod (24) is arranged on one side of the rotating disc (23), the clamping cylinder (8) is arranged at the end of the extension rod (24), and a closed-loop motor (25) is arranged on the other side of the rotating disc (23) and driven to rotate by the closed-loop motor (25).

6. The drill grinder of claim 1, wherein: the improved automatic trimming device is characterized in that cross guide rails are arranged on the lower carriage (5), the upper cover plate (6) is arranged on the lower carriage (5) in a sliding mode through the cross guide rails, supporting blocks (26) are arranged on the side edges of the upper cover plate (6), adjusting rods (27) penetrate through the supporting blocks (26) and are in threaded connection with the supporting blocks (26), hand wheels (28) are arranged at one ends of the adjusting rods (27), trimming rods penetrating through the supporting blocks (26) and in threaded connection with the supporting blocks (26) are arranged on the other sides of the supporting blocks (26), and one ends of the trimming rods are connected with fixing blocks (30) fixedly arranged on the large bottom plate (4).

7. The drill grinder of claim 1, wherein: mechanism is maintained including setting up fixed subassembly and slip table (31) of setting on fixed subassembly on headstock (2) to emery wheel (3), be equipped with on slip table (31) along slip table (31) gliding stand (32) from beginning to end, stand (32) upper portion is equipped with clamping piece (33) that are used for centre gripping gravel and sand strip, one side of slip table (31) is equipped with stopper (35) that are used for adjusting slip table (31) gliding second fine-tuning pole (34) and injecing slip table (31) position around respectively.

8. The drill bit grinder of claim 7, wherein: the fixed subassembly includes fixed plate (36), curb plate (37) and layer board, fixed plate (36) are fixed to be set up on headstock (2), and fixed plate (36), curb plate (37) and layer board mutually perpendicular set up respectively, slip table (31) set up on the layer board.

9. The drill grinder of claim 1, wherein: the first lens (9) is arranged in the spindle box (2), the second lens (10) is arranged on the base (1) through an upright rod, and the first lens (9) and the second lens (10) are perpendicular to each other.