Drill bit coping device

Abstract

The utility model relates to the technical field of drill bit grinding, in particular to a drill bit grinding device which comprises a workbench, an air cylinder is fixedly connected to the top end of the workbench, a connecting block is fixedly connected to the output end of the air cylinder, an installation clamp is installed on the side, away from the air cylinder, of the connecting block, and a drill bit to be ground is arranged on the installation clamp in a sleeved mode. A fixing plate is fixedly connected to the top end of the workbench, a rotating shaft is rotationally connected to the side, close to the drill bit, of the fixing plate, a rotating disc is fixedly connected to the end of the rotating shaft, and the three coping rollers can be simultaneously driven to rotate synchronously through a first servo motor, so that the surface of the drill bit is ground. A second servo motor drives a driving gear on the outer side of a connecting shaft to rotate, so that a transmission gear fixedly connected with the end of a rotating shaft rotates synchronously, the rotating direction of the second servo motor is opposite to that of a first servo motor, the three grinding rollers rotate around the surface of the drill bit while rotating, and all-dimensional uniform grinding of the surface of the drill bit is achieved.

Description

Technical Field

[0001] This utility model relates to the field of drill bit regrinding technology, and in particular to a drill bit regrinding device. Background Technology

[0002] Drill bits, as a commonly used drilling component, are applied in oil well operations. Because drilling operations require frequent use of drill bits, they wear out too quickly, thus reducing their service life. Repairing worn drill bits typically involves welding followed by grinding.

[0003] For example, Chinese utility model patent CN220592511 U discloses a drill bit grinding and processing device, which includes a support plate and a processing mechanism. A box is fixedly installed on the top of the support plate, and the processing mechanism is set on the box. It includes a first motor, a threaded rod, a threaded block, a first electric push rod, a mounting box, a grinding roller, and a second motor, which is used to drive the threaded block to move laterally by controlling the first motor to start.

[0004] In the above solution, although the second motor can drive the grinding roller to rotate and grind the drill bit, the grinding roller can only grind the top horizontal surface of the drill bit at a time. When other parts of the drill bit surface need to be ground, the operator must first rotate the drill bit to make the surface to be ground parallel to the grinding roller. If there are many surfaces of the drill bit that need to be ground, the operator's back-and-forth flipping will directly affect the grinding efficiency of the grinding roller. Utility Model Content

[0005] To address the technical problem that the grinding roller can only grind the top horizontal surface of the drill bit at a time, and when other parts of the drill bit need to be ground, the operator must first rotate the drill bit to make the surface to be ground parallel to the grinding roller. If there are many surfaces to be ground on the drill bit, the operator's back-and-forth flipping will directly affect the grinding efficiency of the grinding roller. This utility model provides a drill bit grinding device.

[0006] This utility model employs the following technical solution to realize a drill bit regrinding device, including a worktable, a cylinder fixedly connected to the top of the worktable, a connecting block fixedly connected to the output end of the cylinder, an installation clamp installed on the side of the connecting block away from the cylinder, a drill bit to be regrinded being sleeved on the installation clamp, a fixing plate fixedly connected to the top of the worktable, a rotating shaft rotatably connected to the side of the fixing plate near the drill bit, a rotating disk fixedly connected to the end of the rotating shaft, and three regrinding rollers for regrinding the surface of the drill bit provided on the side of the rotating disk away from the fixing plate.

[0007] Through the above technical solution, the cylinder pushes the drill bit held inside the mounting clamp to move towards the inside of the three grinding rollers, so that the surface of the drill bit is uniformly ground.

[0008] As a further improvement to the above scheme, the shafts of the three grinding rollers extend to the other side of the rotating disk and are fixedly connected to sprockets. The sprockets are connected to each other by chain drive. A first servo motor is fixedly connected to the side of the rotating disk near the fixed plate. The first servo motor is coaxially connected to the shaft of one of the grinding rollers.

[0009] Through the above technical solution, the first servo motor drives one of the grinding rollers to rotate. Since the three grinding rollers are driven by sprockets and chains, the first servo motor can drive the three grinding rollers to rotate synchronously.

[0010] As a further improvement to the above solution, one end of the rotating shaft extends to the outside of the fixed plate and is fixedly connected to a transmission gear. A second servo motor is fixedly connected to the outside of the fixed plate. The output end of the second servo motor is fixedly connected to a connecting shaft, which is rotatably connected to the outside of the fixed plate. A drive gear that meshes with the transmission gear is fixedly connected to the outside of the connecting shaft.

[0011] Through the above technical solution, the second servo motor drives the drive gear on the outside of the connecting shaft to rotate, so that the transmission gear fixed at the end of the rotating shaft rotates synchronously, and the direction of the second servo motor is opposite to that of the first servo motor, so that the surface of the drill bit can be polished evenly in all directions.

[0012] As a further improvement to the above solution, an opening is provided in the middle of the rotating shaft for a long drill bit to pass through.

[0013] As a further improvement to the above solution, a fixing block is fixedly connected to the bottom end of the connecting block, a sliding groove is provided at the top of the workbench, a slider is slidably connected inside the sliding groove, and the fixing block is fixedly connected to the top of the slider.

[0014] With the above technical solution, the fixed block at the bottom of the connecting block slides synchronously inside the groove as the cylinder pushes, which can provide support for the connecting block.

[0015] As a further improvement to the above solution, a support leg is fixedly connected to the bottom of the workbench, and a pulley is installed at the bottom of the support leg. A push rod is fixedly connected to the top side of the workbench, and the outer side of the push rod is textured.

[0016] The above technical solution improves the flexibility of the drill bit regrinding device by using a push rod fixed to the top of the worktable and a pulley installed at the bottom support.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention uses a first servo motor to simultaneously drive three grinding rollers to rotate synchronously, thereby grinding the surface of the drill bit; a second servo motor drives the drive gear on the outside of the connecting shaft to rotate, causing the transmission gear fixed to the end of the rotating shaft to rotate synchronously, and the direction of the second servo motor is opposite to that of the first servo motor, so that the three grinding rollers rotate on their own axis and also revolve around the surface of the drill bit, achieving all-round uniform grinding of the drill bit surface. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the outer structure of the fixing plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the side structure of the rotating disk of this utility model.

[0022] Explanation of key symbols:

[0023] 1. Workbench; 2. Cylinder; 3. Connecting block; 4. Mounting clamp; 5. Drill bit; 6. Fixing plate; 7. Rotating shaft; 8. Rotating disk; 9. Grinding roller; 10. Sprocket; 11. Chain; 12. First servo motor; 13. Transmission gear; 14. Second servo motor; 15. Connecting shaft; 16. Drive gear; 17. Opening; 18. Fixing block; 19. Slide groove; 20. Slider; 21. Support leg; 22. Pulley. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Please combine Figures 1-3 This embodiment of a drill bit 5 grinding device includes a worktable 1, a cylinder 2 fixedly connected to the top of the worktable 1, a connecting block 3 fixedly connected to the output end of the cylinder 2, a mounting clamp 4 installed on the side of the connecting block 3 away from the cylinder 2, a drill bit 5 to be ground being sleeved on the mounting clamp 4, a fixing plate 6 fixedly connected to the top of the worktable 1, a rotating shaft 7 rotatably connected to the side of the fixing plate 6 near the drill bit 5, a rotating disk 8 fixedly connected to the end of the rotating shaft 7, and three grinding rollers 9 for grinding the surface of the drill bit 5 provided on the side of the rotating disk 8 away from the fixing plate 6.

[0026] Combination Figure 2 and Figure 3The rotating shafts of the three grinding rollers 9 extend to the other side of the rotating disk 8 and are fixedly connected to sprockets 10. The sprockets 10 are connected to each other by a chain 11. A first servo motor 12 is fixedly connected to the side of the rotating disk 8 near the fixed plate 6. The first servo motor 12 is coaxially connected to the rotating shaft of one of the grinding rollers 9. One end of the rotating shaft 7 extends to the outside of the fixed plate 6 and is fixedly connected to a transmission gear 13. A second servo motor 14 is fixedly connected to the outside of the fixed plate 6. The output end of the second servo motor 14 is fixedly connected to a connecting shaft 15, which is rotatably connected to the outer side of the fixed plate 6. A drive gear 16, meshing with the transmission gear 13, is fixedly connected to the outer side of the connecting shaft 15. An opening 17 for a long drill bit 5 to pass through is provided in the middle of the rotating shaft 7. The first servo motor 12, fixed to the side of the rotating disk 8 near the fixed plate 6, drives the rotating shaft of one of the grinding rollers 9 to rotate. Since the rotating shafts of the three grinding rollers 9 are connected by a sprocket 10 and a chain 11, the rotation of the first servo motor 12 can drive the three grinding rollers 9 to rotate synchronously. The device can grind the surface of the drill bit 5. At the same time, the second servo motor 14, which is fixed to the outside of the fixed plate 6, drives the connecting shaft 15, which is rotatably connected to the outside of the fixed plate 6, to rotate. Since the drive gear 16 fixed to the outside of the connecting shaft 15 meshes with the transmission gear 13 fixed to the end of the rotating shaft 7, the second servo motor 14 can drive the rotating shaft 7 to rotate. This causes the three grinding rollers 9 to rotate on their own axis and revolve around the surface of the drill bit 5, thus achieving uniform grinding of the surface of the drill bit 5 in all directions. Meanwhile, the opening 17 in the middle of the rotating shaft 7 can be used to grind drill bits 5 of different lengths, thereby improving the practicality of the device.

[0027] Combination Figure 1 The bottom end of the connecting block 3 is fixedly connected to a fixing block 18, and the top end of the worktable 1 is provided with a sliding groove 19. A slider 20 is slidably connected inside the sliding groove 19, and the fixing block 18 is fixedly connected to the top end of the slider 20. The cylinder 2 drives the connecting block 3, the mounting clamp 4 and the drill rod to move synchronously towards the grinding roller 9. At the same time as the movement, the fixing block 18 fixed at the bottom end of the connecting block 3 can synchronously drive the slider 20 to slide inside the sliding groove 19, which can provide support for the connecting block 3.

[0028] Combination Figure 1 The workbench 1 is fixedly connected to a support leg 21 at its bottom end, and a pulley 22 is installed at the bottom end of the support leg 21. A push rod is fixedly connected to the top side of the workbench 1, and the outer side of the push rod is textured. Through the push rod fixedly connected to the top of the workbench 1 and the pulley 22 installed on the bottom support leg, the operator can push the workbench 1 to a suitable location to grind the drill bit 5, thereby improving the flexibility of the drill bit 5 grinding device. At the same time, the textured surface of the push rod can improve the friction.

[0029] The implementation principle of a drill bit 5 grinding device in this application embodiment is as follows:

[0030] Before grinding, the staff first use the textured push rod to push the pulley 22 on the bottom support leg 21 of the worktable 1 to move it until the worktable 1 is moved to the appropriate grinding position. Then the drill bit 5 to be ground is mounted on the mounting clamp 4.

[0031] At this time, cylinder 2, first servo motor 12 and second servo motor 14 are activated simultaneously.

[0032] The opening of cylinder 2 can drive connecting block 3, mounting clamp 4 and drill rod to move synchronously towards grinding roller 9. At the same time, the fixing block 18 fixed to the bottom of connecting block 3 can synchronously drive slider 20 to slide inside the slide groove 19 opened at the top of worktable 1, so as to play a supporting role.

[0033] The activation of the first servo motor 12 can drive the shaft of one of the grinding rollers 9 to rotate. Since the shafts of the three grinding rollers 9 are driven by the sprocket 10 and the chain 11, the rotation of the first servo motor 12 can drive the three grinding rollers 9 to rotate synchronously, so that the surface of the drill bit 5 can be ground.

[0034] The second servo motor 14 is turned on, which drives the connecting shaft 15, which is rotatably connected to the outside of the fixed plate 6, to rotate. Because the drive gear 16 fixed to the outside of the connecting shaft 15 meshes with the transmission gear 13 fixed to the end of the rotating shaft 7, the second servo motor 14 can drive the rotating shaft 7 to rotate, so that the three grinding rollers 9 rotate on their own axis and revolve around the surface of the drill bit 5, realizing all-round uniform grinding of the surface of the drill bit 5. At the same time, the opening 17 in the middle of the rotating shaft 7 can be used to grind drill bits 5 of different lengths, thereby improving the practicality of the device.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A drill bit regrinding device, characterized in that, Includes a workbench (1), a cylinder (2) is fixedly connected to the top of the workbench (1), a connecting block (3) is fixedly connected to the output end of the cylinder (2), a mounting clip (4) is installed on the side of the connecting block (3) away from the cylinder (2), and a drill bit (5) to be ground is sleeved on the mounting clip (4). The top of the workbench (1) is fixedly connected to a fixed plate (6), and a rotating shaft (7) is rotatably connected to the side of the fixed plate (6) near the drill bit (5). A rotating disk (8) is fixedly connected to the end of the rotating shaft (7), and three grinding rollers (9) for grinding the surface of the drill bit (5) are provided on the side of the rotating disk (8) away from the fixed plate (6).

2. The drill bit regrinding device as described in claim 1, characterized in that, The shafts of the three grinding rollers (9) extend to the other side of the rotating disk (8) and are fixedly connected to sprockets (10), which are connected to each other by a chain (11). The rotating disk (8) is fixedly connected to a first servo motor (12) on the side near the fixed plate (6), and the first servo motor (12) is coaxially connected to the shaft of one of the grinding rollers (9).

3. The drill bit regrinding device as described in claim 1, characterized in that, One end of the rotating shaft (7) extends to the outside of the fixed plate (6) and is fixedly connected to a transmission gear (13); A second servo motor (14) is fixedly connected to the outside of the fixed plate (6). A connecting shaft (15) is fixedly connected to the output end of the second servo motor (14). The connecting shaft (15) is rotatably connected to the outside of the fixed plate (6), and a drive gear (16) that meshes with the transmission gear (13) is fixedly connected to the outside of the connecting shaft (15).

4. The drill bit regrinding device as described in claim 3, characterized in that, The rotating shaft (7) has an opening (17) in the middle for a long drill bit (5) to pass through.

5. The drill bit regrinding device as described in claim 1, characterized in that, The bottom end of the connecting block (3) is fixedly connected to a fixing block (18); The workbench (1) has a groove (19) at the top, and a slider (20) is slidably connected inside the groove (19). The fixing block (18) is fixed to the top of the slider (20).

6. The drill bit regrinding device as described in claim 1, characterized in that, The bottom end of the workbench (1) is fixedly connected to a support leg (21), and a pulley (22) is installed at the bottom end of the support leg (21); A push rod is fixed to the top edge of the workbench (1), and the outer side of the push rod is textured.

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