Adjustable pdc bit clamp structure

Abstract

This utility model relates to the field of PDC drill bit processing technology and discloses an adjustable PDC drill bit clamping structure, including a main body plate, a clamping frame, and an adjustment component. The adjustment component is located inside the main body plate, and the clamping frame is also located inside the main body plate. A circular frame is rotatably connected inside the clamping frame, and a second optical axis is fixedly connected inside the circular frame. A third optical axis is fixedly connected inside the clamping frame, and a movable bracket is rotatably connected to the outside of the third optical axis. The second optical axis moves within the movable bracket. The circular frame rotates within the clamping frame, limiting the movable bracket via the second optical axis, causing the movable bracket to rotate around the third optical axis. By rotating the circular frame, the movable bracket can rotate around the third optical axis via the second optical axis, allowing it to fit and clamp drill bits of different diameters, improving clamping stability, increasing processing efficiency, and thus improving the stability of the clamping structure.

Description

Technical Field

[0001] This utility model relates to the field of PDC drill bit processing, and in particular to an adjustable PDC drill bit clamping structure. Background Technology

[0002] PDC drill bits are short for polycrystalline diamond composite drill bits. They are drill bits made by embedding or sintering small cutting blocks of polycrystalline diamond onto the drill bit body. They are widely used in drilling for mineral resources such as oil, natural gas, and coal, especially in deep well exploration drilling and horizontal well sidetracking. During the manufacturing process of PDC drill bits, a clamping structure is required to fix their position.

[0003] In existing technologies, drill bits are clamped and fixed using clamping blocks. However, due to the different specifications and diameters of drill bits, the clamping blocks may fail to fit the drill bits properly or the contact area may be too small, resulting in insufficient friction and thus failing to clamp and fix the drill bits. This reduces clamping stability and drilling efficiency. Therefore, it is necessary to improve the adjustable PDC drill bit clamping structure to solve the above problems. Utility Model Content

[0004] To overcome the problem that when clamping drill bits of different diameters, the clamping block may fail to fit the drill bit properly or the small contact area may result in insufficient friction, thus failing to clamp and fix the drill bit.

[0005] The technical solution of this utility model is as follows: an adjustable PDC drill bit clamping structure, including a main body plate, a clamping frame, and an adjustment component. The adjustment component is provided inside the main body plate, and the clamping frame is provided inside the main body plate. A circular frame is rotatably connected inside the clamping frame. A second optical axis is fixedly connected inside the circular frame. A third optical axis is fixedly connected inside the clamping frame. A movable bracket is rotatably connected outside the third optical axis. The second optical axis moves inside the movable bracket. The circular frame rotates inside the clamping frame, so that it limits the movable bracket through the second optical axis, causing the movable bracket to rotate around the third optical axis.

[0006] Preferably, the clamping frame has a slot at the corresponding position of the circular frame, and the circular frame rotates within the slot.

[0007] Preferably, the movable bracket has a groove at the corresponding position of the second optical axis, and the second optical axis moves within the groove.

[0008] Preferably, the circular frame has a groove at the corresponding position of the movable bracket, and the movable bracket moves within the groove.

[0009] Preferably, the clamping frame is rotatably connected to a first optical axis, the top of the first optical axis is fixedly connected to a fixed frame, the fixed frame is fixedly connected to an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected to a rotating block, the outside of the circular frame is fixedly connected to a first semicircular block, the inside of the first semicircular block is fixedly connected to a limit shaft, the rotating block rotates inside the limit shaft, and the movable bracket is rotatably connected to a roller.

[0010] Preferably, three movable supports are provided, which are symmetrically distributed inside the circular frame.

[0011] Preferably, the adjustment assembly includes a limiting rod, which is fixed inside the main body plate. The clamping frame slides outside the limiting rod. A threaded rod is rotatably connected inside the main body plate. A turntable is fixedly connected to the outside of the threaded rod. A crank is fixedly connected to the front end of the turntable. A second semicircular block is fixedly connected to the inside of the clamping frame. The second semicircular block is threadedly connected to the outside of the threaded rod.

[0012] The beneficial effects of this utility model are as follows: Compared with clamping by clamping blocks, by rotating the circular frame so that it drives the movable bracket to rotate around the third optical axis through the second optical axis, it can fit and clamp drill bits of different diameters, thereby improving the stability of clamping, improving processing efficiency, and thus improving the stability of the clamping structure. This avoids the problem that when clamping blocks clamp drill bits of different diameters, they may fail to fit the drill bits or the small fitting surface may result in insufficient friction, thus failing to clamp and fix the drill bits. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the adjustable PDC drill bit clamping structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the circular frame structure of the adjustable PDC drill bit clamping structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the clamping frame of the adjustable PDC drill bit clamping structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the adjustable PDC drill bit clamping structure electric telescopic rod of this utility model;

[0017] Figure 5 This is a schematic diagram of the adjustable PDC drill bit clamping structure adjustment component of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Main body plate; 21. Clamping frame; 22. First optical axis; 23. Fixed frame; 24. Electric telescopic rod; 25. Rotating block; 26. Circular frame; 27. First semicircular block; 28. Limiting shaft; 29. ​​Second optical axis; 210. Third optical axis; 211. Movable bracket; 212. Roller; 31. Limiting rod; 32. Threaded rod; 33. Turntable; 34. Crank handle; 35. Second semicircular block. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figure 1 - Figure 5 This utility model provides an embodiment of an adjustable PDC drill bit clamping structure, including a main body plate 1, a clamping frame 21, and an adjustment component. The adjustment component is located inside the main body plate 1, and the clamping frame 21 is also located inside the main body plate 1. A circular frame 26 is rotatably connected inside the clamping frame 21. A second optical axis 29 is fixedly connected inside the circular frame 26, and a third optical axis 210 is fixedly connected inside the clamping frame 21. A movable bracket 211 is rotatably connected to the outside of the third optical axis 210. The second optical axis 29 moves within the movable bracket 211. The rotation of the circular frame 26 within the clamping frame 21 limits the movement of the movable bracket 211 via the second optical axis 29, causing the movable bracket 211 to rotate around the third optical axis 210. This rotation causes the circular frame 26 to rotate within the clamping frame 21, and the second optical axis 29 fixedly connected inside the circular frame 26 moves within the corresponding groove of the movable bracket 211. The rotation of the circular frame 26 drives the third optical axis 210. The movable support 211 rotates around the third optical axis 210, allowing it to clamp PDC drill bits of different diameters. The adjustment component adjusts the position of the clamping frame 21 by rotating the rocker handle 34, adjusting the position of the clamping PDC drill bits according to the processing environment. The clamping frame 21 has a slot at the corresponding position of the circular frame 26, and the circular frame 26 rotates within the slot. The slot limits the circular frame 26, improving the stability of the device. The movable support 211 has a slot at the corresponding position of the second optical axis 29, and the second optical axis 29 moves within the slot. The slot allows the angle of the movable support 211 to be adjusted by rotating the circular frame 26, enabling it to clamp bricks of different diameters and improving the practicality of the clamping structure. The circular frame 26 has a slot at the corresponding position of the movable support 211, and the movable support 211 moves within the slot. The slot ensures that the rotation of the movable support 211 is not affected by the circular frame 26, improving stability and enhancing the practicality of the device.

[0021] Please see Figure 1 - Figure 4In this embodiment, a first optical axis 22 is rotatably connected inside the clamping frame 21. A fixed frame 23 is fixedly connected to the top of the first optical axis 22. An electric telescopic rod 24 is fixedly connected inside the fixed frame 23. A rotating block 25 is fixedly connected to the telescopic end of the electric telescopic rod 24. A first semicircular block 27 is fixedly connected to the outside of the circular frame 26. A limiting shaft 28 is fixedly connected inside the first semicircular block 27. The rotating block 25 rotates inside the limiting shaft 28. A roller 212 is rotatably connected inside the movable bracket 211. The roller rotates within the clamping frame 21 via the first optical axis 22. The device uses an electric telescopic rod 24 to rotate the circular frame 26, thereby clamping drill bits of different diameters. Rollers 212 further clamp and fix PDC drill bits of different diameters, reducing wear and improving the device's practicality and clamping stability. Three movable supports 211 are symmetrically distributed inside the circular frame 26, allowing for the clamping of drill bits of different diameters, improving clamping stability and preventing the drill bits from shaking during processing.

[0022] Please see Figure 5 In this embodiment, the adjustment component includes a limiting rod 31, which is fixed inside the main body plate 1. The clamping frame 21 slides outside the limiting rod 31. A threaded rod 32 is rotatably connected inside the main body plate 1. A turntable 33 is fixedly connected to the outside of the threaded rod 32. A crank handle 34 is fixedly connected to the front end of the turntable 33. A second semicircular block 35 is fixedly connected to the inner side of the clamping frame 21. The second semicircular block 35 is threadedly connected to the outside of the threaded rod 32. By rotating the crank handle 34, the position of the clamping frame 21 can be adjusted. The position of the PDC drill bit can be adjusted according to the processing environment, thereby improving its practicality.

[0023] During operation, the first optical axis 22 rotates inside the clamping frame 21, causing it to extend and retract via the actuation of the electric telescopic rod 24. The first semi-circular block 27, fixedly connected to the outside of the circular frame 26, rotates inside the limiting shaft 28 via the rotating block 25, thereby causing the circular frame 26 to rotate inside the clamping frame 21. The second optical axis 29, fixedly connected inside the circular frame 26, moves within the corresponding grooves of the movable bracket 211. The rotation of the circular frame 26 causes the three movable brackets 211 to rotate around the third optical axis 210, allowing PDC drill bits of different diameters to be inserted. The clamping mechanism uses rollers 212 to hold PDC drill bits of different diameters, reducing wear on the drill bits during fixation. Rotating the crank 34 causes the turntable 33 to rotate, which in turn causes the threaded rod 32 to rotate inside the main body plate 1. The second semicircular block 35 is threaded to the outside of the threaded rod 32, causing the clamping frame 21 to slide inside the main body plate 1. The clamping frame 21 is limited by the limiting rod 31, allowing the position of the clamping frame 21 to be adjusted according to the processing environment.

[0024] Through the above steps, by rotating the circular frame 26, it drives the movable bracket 211 to rotate around the third optical axis 210 via the second optical axis 29, so that it can fit with drill bits of different diameters and clamp and fix them. This solves the problem that when the clamping block clamps drill bits of different diameters, it may not be able to fit the drill bit or the small fitting surface may result in less friction, thus making it impossible to clamp and fix the drill bit.

Claims

1. An adjustable PDC drill bit clamping structure, comprising a main body plate (1), characterized in that: It also includes a clamping frame (21) and an adjustment component. The adjustment component is provided inside the main body plate (1). The clamping frame (21) is provided inside the main body plate (1). A circular frame (26) is rotatably connected inside the clamping frame (21). A second optical axis (29) is fixedly connected inside the circular frame (26). A third optical axis (210) is fixedly connected inside the clamping frame (21). A movable bracket (211) is rotatably connected outside the third optical axis (210). The second optical axis (29) moves inside the movable bracket (211). It rotates inside the clamping frame (21) through the circular frame (26) so that it limits the movable bracket (211) through the second optical axis (29) so that it drives the movable bracket (211) to rotate around the third optical axis (210).

2. The adjustable PDC drill bit clamping structure according to claim 1, characterized in that: The clamping frame (21) has a slot at the corresponding position of the circular frame (26), and the circular frame (26) rotates in the slot.

3. The adjustable PDC drill bit clamping structure according to claim 1, characterized in that: The movable bracket (211) has a groove at the corresponding position of the second optical axis (29), and the second optical axis (29) moves within the groove.

4. The adjustable PDC drill bit clamping structure according to claim 1, characterized in that: The circular frame (26) has a groove at the corresponding position of the movable bracket (211), and the movable bracket (211) moves within the groove.

5. The adjustable PDC drill bit clamping structure according to claim 1, characterized in that: The clamping frame (21) is rotatably connected to the first optical axis (22), the top of the first optical axis (22) is fixedly connected to the fixed frame (23), the fixed frame (23) is fixedly connected to the electric telescopic rod (24), the telescopic end of the electric telescopic rod (24) is fixedly connected to the rotating block (25), the outside of the circular frame (26) is fixedly connected to the first semicircular block (27), the inside of the first semicircular block (27) is fixedly connected to the limit shaft (28), the rotating block (25) rotates inside the limit shaft (28), and the movable bracket (211) is rotatably connected to the roller (212).

6. The adjustable PDC drill bit clamping structure according to claim 5, characterized in that: There are three movable supports (211), which are symmetrically distributed inside the circular frame (26).

7. The adjustable PDC drill bit clamping structure according to claim 1, characterized in that: The adjustment assembly includes a limit rod (31), which is fixed inside the main body plate (1). The clamping frame (21) slides outside the limit rod (31). A threaded rod (32) is rotatably connected inside the main body plate (1). A turntable (33) is fixedly connected to the outside of the threaded rod (32). A rocker arm (34) is fixedly connected to the front end of the turntable (33). A second semicircular block (35) is fixedly connected to the inside of the clamping frame (21). The second semicircular block (35) is threadedly connected to the outside of the threaded rod (32).

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