A grinding machine for machining heat-resistant and wear-resistant drill bits

Abstract

This utility model discloses a grinding machine for processing heat-resistant and wear-resistant drill bits, including a bottom support plate, a grinding mechanism mounted on the bottom support plate, and a drill bit clamping and driving mechanism mounted on the bottom support plate. The drill bit clamping and driving mechanism is used to fix the drill bit with grinding and to advance and drive the drill bit to rotate. The grinding mechanism includes a first L-shaped support column, on which a first electric push rod is mounted. A motor mounting plate is mounted at the bottom end of the first electric push rod, and a motor is fixedly mounted on the motor mounting plate. The output shaft of the motor is connected to the grinding drill bit through a coupling. This relates to the field of drill bit processing technology. By driving the rotation of the rack and pinion gear, the drill bit is driven to rotate, thereby ensuring the stability of the drill bit and preventing accidental rotation, thus ensuring the stability of the drill bit during processing and guaranteeing the grinding quality of the drill bit.

Description

Technical Field

[0001] This utility model relates to the field of drill bit processing technology, specifically a grinding machine for processing heat-resistant and wear-resistant drill bits. Background Technology

[0002] Chinese utility model patent CN220312493U discloses a clamping and fixing device for drill bit processing, including a fixing mechanism with a cleaning mechanism externally. The fixing mechanism includes a clamping box, a fixing component installed inside the clamping box, a rotating block at the bottom of the fixing component, a first roller at the bottom of the rotating block, a belt external to the first roller, a second roller internal to the belt, and a motor at the bottom of the second roller. The fixing component includes a fixing base, a support plate fixedly connected to the top of the fixing base, an electric push rod fixedly connected to one end of the support plate, and a clamping head fixedly connected to one end of the electric push rod.

[0003] The above-mentioned patents have the following shortcomings:

[0004] The motor drives the fixed base to rotate. We know that even if the motor stops working, its shaft will still rotate when subjected to force. Therefore, after the motor drives the fixed base to stop rotating, the fixed base may still rotate. As a result, the stability of the fixed base cannot be guaranteed, which in turn cannot guarantee the stability of the drill bit during processing, thus affecting the processing of the drill bit. Utility Model Content

[0005] In view of the problems existing in the existing grinding machine for processing heat-resistant and wear-resistant drill bits, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a grinding machine for processing heat-resistant and wear-resistant drill bits, thus solving the problem.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A grinding machine for processing heat-resistant and wear-resistant drill bits includes a bottom support plate, a grinding mechanism mounted on the bottom support plate, and a drill bit clamping and driving mechanism mounted on the bottom support plate.

[0009] The drill bit clamping and driving mechanism is used to fix the drill bit with grinding and to advance and drive the drill bit to rotate.

[0010] As a preferred embodiment of the grinding machine for processing heat-resistant and wear-resistant drill bits according to the present invention, the grinding mechanism includes a first L-shaped support column, a first electric push rod is mounted on the first L-shaped support column, a motor mounting plate is mounted on the bottom end of the first electric push rod, a motor is fixedly mounted on the motor mounting plate, and the output shaft of the motor is connected to the grinding drill bit through a coupling.

[0011] In a preferred embodiment of the heat-resistant and wear-resistant drill bit grinding machine described in this utility model, the drill bit clamping drive mechanism includes a second L-shaped support column welded to the bottom support plate, a bearing seat fixedly installed on the second L-shaped support column, a second electric push rod rotatably connected to the bearing seat through a bearing, a drill bit retainer installed at the end of the second electric push rod, and a rotary drive assembly driven by the second electric push rod.

[0012] In a preferred embodiment of the heat-resistant and wear-resistant drill bit grinding machine described in this utility model, the rotary drive assembly includes a third electric push rod mounted on a bottom support plate, a rack mounted on the top of the third electric push rod, a gear meshing with the rack, and the gear being fixedly mounted on a second electric push rod.

[0013] In a preferred embodiment of the grinding machine for processing heat-resistant and wear-resistant drill bits according to the present invention, the drill bit retainer is configured as a sleeve, and the sleeve is installed at the end of the second electric push rod.

[0014] In a preferred embodiment of the heat-resistant and wear-resistant drill bit processing grinding machine described in this utility model, the drill bit holder includes a support plate installed at the end of the second electric push rod, a fixed arc-shaped clamp plate is welded on the support plate, and a movable arc-shaped clamp plate is provided above the fixed arc-shaped clamp plate. The fixed arc-shaped clamp plate and the movable arc-shaped clamp plate are fixed by bolts.

[0015] Compared with existing technologies:

[0016] By using a rack and pinion to drive the gears to rotate, which in turn drives the drill bit to rotate, the stability of the drill bit can be ensured. The drill bit will not rotate unexpectedly, thus ensuring the stability of the drill bit during processing and guaranteeing the grinding quality of the drill bit. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure provided for Embodiment 1 of the present utility model;

[0018] Figure 2 A schematic diagram of the first support connecting seat provided in Embodiment 1 of this utility model;

[0019] Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0020] Figure 4 Provided for Embodiment 2 of this utility model Figure 3 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Bottom support plate; 2. First support connecting seat; 3. Third electric push rod; 4. Second support connecting seat; 5. Bearing seat; 6. Rack; 7. Fourth support connecting seat; 8. Second L-shaped support column; 9. Third support connecting seat; 10. Guide rod; 11. Stabilizing rod; 12. Gear; 13. Second electric push rod; 14. Fifth support connecting seat; 15. Sleeve; 16. First L-shaped support column; 17. Sixth support connecting seat; 18. First electric push rod; 19. Seventh support connecting seat; 20. Motor; 21. Grinding drill bit; 23. Support plate; 24. Fixed arc-shaped clamp; 25. Movable arc-shaped clamp. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Example 1

[0023] This utility model provides a grinding machine for machining heat-resistant and wear-resistant drill bits. Please refer to [link / reference]. Figure 1-2 It includes a bottom support plate 1, a grinding mechanism mounted on the bottom support plate 1, and a drill bit clamping drive mechanism mounted on the bottom support plate 1.

[0024] The drill bit clamping drive mechanism is used to fix the drill bit with grinding and to advance and drive the drill bit to rotate.

[0025] The grinding mechanism includes a first L-shaped support column 16, on which a first electric push rod 18 is mounted. Specifically, a sixth support connecting seat 17 is welded to the first L-shaped support column 16. The top end of the first electric push rod 18 is inserted into the sixth support connecting seat 17, and the sixth support connecting seat 17 and the first electric push rod 18 are fixed together by bolts. A motor mounting plate is mounted on the bottom end of the first electric push rod 18. Specifically, a seventh support connecting seat 19 is welded to the top end of the motor mounting plate, and the bottom end of the first electric push rod 18 is inserted into the seventh support connecting seat 19, and the seventh support connecting seat 19 and the first electric push rod 18 are fixed together by bolts. A motor 20 is fixedly mounted on the motor mounting plate, and the output shaft of the motor 20 is connected to a grinding drill bit 21 via a coupling.

[0026] The drill bit clamping drive mechanism includes a second L-shaped support column 8 welded to the bottom support plate 1. A bearing seat 5 is fixedly installed on the second L-shaped support column 8. A second electric push rod 13 is rotatably connected to the bearing seat 5 via a bearing. A drill bit retainer is installed at the end of the second electric push rod 13. The drill bit retainer is configured as a sleeve 15. The sleeve 15 is installed at the end of the second electric push rod 13. Specifically, a fifth support connecting seat 14 is welded to the end of the sleeve 15. The second electric push rod 13 is inserted into the inner wall of the fifth support connecting seat 14, and the second electric push rod 13 and the fifth support connecting seat 14 are fixed together by bolts. The second electric push rod 13 is driven by a rotary drive assembly.

[0027] The rotary drive assembly includes a third electric push rod 3 mounted on a bottom support plate 1. Specifically, a first support connecting seat 2 is welded to the bottom support plate 1. The bottom end of the third electric push rod 3 is inserted into the first support connecting seat 2, and the first support connecting seat 2 and the third electric push rod 3 are fixed together by bolts. A rack 6 is mounted on the top end of the third electric push rod 3. Specifically, a second support connecting seat 4 is welded to the bottom end of the rack 6, and the top end of the third electric push rod 3 is inserted into the second support connecting seat 4, and the second support connecting seat 4 and the third electric push rod 3 are fixed together by bolts. A gear 12 is meshed with the rack 6, and the gear 12 is fixedly mounted on the second electric push rod 13. The rack 6 drives the gear to rotate, thereby driving the second electric push rod 13 and the sleeve 15 to rotate. When the rack 6 stops moving, the third electric push rod 3 remains stable and will not rotate unexpectedly.

[0028] A third support connector 9 is welded onto the second L-shaped support column 8. A stabilizing rod 11 is inserted into the inner wall of the third support connector 9, and the third support connector 9 and the stabilizing rod 11 are fixed together by bolts. A guide sleeve is fixedly installed on the stabilizing rod 11, and a guide rod 10 is slidably connected to the inner wall of the guide sleeve. A fourth support connector 7 is welded to the top of the rack 6, and the bottom end of the guide rod 10 is inserted into the fourth support connector 7, and the fourth support connector 7 and the guide rod 10 are fixed together by bolts. The stabilizing rod 11 and the guide rod 10 can ensure the stability of the rack 6 in raising and lowering.

[0029] In practical use, the drill bit shank is inserted into the sleeve 15, and the drill bit is driven to approach the grinding drill bit 21 by the extension and retraction of the second electric push rod 13. The motor 20 drives the grinding drill bit 21 to rotate, and at the same time the first electric push rod 18 extends to drive the grinding drill bit 21 to contact the drill bit.

[0030] The extension and retraction of the third electric push rod 3 drives the rack 6 to rise and fall, thereby driving the second electric push rod 13 to rotate, thus realizing the rotation of the drill bit; thus the drill bit is pushed forward and rotated, thereby realizing all-round grinding of the drill bit. Example 2

[0031] See attached document Figure 3-4Unlike Embodiment 1, the drill bit holder includes a support plate 23 installed at the end of the second electric push rod 13. A fixed arc-shaped clamping plate 24 is welded on the support plate 23. A movable arc-shaped clamping plate 25 is located above the fixed arc-shaped clamping plate 24. The fixed arc-shaped clamping plate 24 and the movable arc-shaped clamping plate 25 are fixed by bolts. At this time, by tightening the bolts that fix the fixed arc-shaped clamping plate 24 and the movable arc-shaped clamping plate 25, the drill bit shank is clamped by the fixed arc-shaped clamping plate 24 and the movable arc-shaped clamping plate 25, and it can clamp drill bits of any diameter.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A grinding machine for processing heat-resistant and wear-resistant drill bits, comprising a bottom support plate (1), on which a grinding mechanism is mounted, characterized in that: It also includes a drill bit clamping drive mechanism mounted on the bottom support plate (1); The drill bit clamping and driving mechanism is used to fix the drill bit with grinding and to advance and drive the drill bit to rotate.

2. The grinding machine for processing heat-resistant and wear-resistant drill bits according to claim 1, characterized in that, The grinding mechanism includes a first L-shaped support column (16), on which a first electric push rod (18) is mounted. A motor mounting plate is mounted at the bottom end of the first electric push rod (18), and a motor (20) is fixedly mounted on the motor mounting plate. The output shaft of the motor (20) is connected to a grinding drill bit (21) via a coupling.

3. A grinding machine for machining heat-resistant and wear-resistant drill bits according to claim 1, characterized in that, The drill bit clamping drive mechanism includes a second L-shaped support column (8) welded to the bottom support plate (1), a bearing seat (5) fixedly installed on the second L-shaped support column (8), a second electric push rod (13) rotatably connected to the bearing seat (5) through the bearing, a drill bit retainer installed at the end of the second electric push rod (13), and a rotary drive assembly connected to the second electric push rod (13).

4. A grinding machine for processing heat-resistant and wear-resistant drill bits according to claim 3, characterized in that, The rotary drive assembly includes a third electric push rod (3) mounted on a bottom support plate (1), a rack (6) mounted on the top of the third electric push rod (3), a gear (12) meshing with the rack (6), and the gear (12) fixedly mounted on a second electric push rod (13).

5. A grinding machine for machining heat-resistant and wear-resistant drill bits according to claim 3 or 4, characterized in that, The drill bit retainer is configured as a sleeve (15), which is installed at the end of the second electric push rod (13).

6. A grinding machine for machining heat-resistant and wear-resistant drill bits according to claim 3 or 4, characterized in that, The drill bit holder includes a support plate (23) installed at the end of the second electric push rod (13), a fixed arc-shaped clamp (24) welded on the support plate (23), and a movable arc-shaped clamp (25) above the fixed arc-shaped clamp (24). The fixed arc-shaped clamp (24) and the movable arc-shaped clamp (25) are fixed by bolts.

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