Tungsten steel drill bit coating treatment device
By designing a coating treatment device for tungsten carbide drill bits, which utilizes a rotating ring and a strip nozzle moving along the spiral groove of the drill bit, the problem of incomplete coating on the inner side of the thread groove on the surface of the tungsten carbide drill bit was solved, achieving a better coating effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-10
AI Technical Summary
The inner groove of the existing tungsten carbide drill bit cannot be fully coated, resulting in poor coating effect.
A coating treatment device for tungsten carbide drill bits was designed, including a base, a protective sleeve, a clamping part, a collar, and a rotating ring. The rotating ring drives the strip nozzle to move along the spiral groove of the tungsten carbide drill bit. The strip nozzle corresponds to the spiral groove, so as to achieve effective spraying of the grouting groove inside the spiral groove.
It improves the surface coating effect of tungsten carbide drill bits, ensuring that the inner side of the spiral groove can also be completely coated.
Smart Images

Figure CN223980624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of drill bit processing equipment, specifically a tungsten carbide drill bit coating treatment device. Background Technology
[0002] Tungsten carbide, also known as cemented carbide, is a sintered composite material containing at least one type of metal carbide. Tungsten carbide products are widely used, and drill bits made from tungsten carbide possess high strength.
[0003] During the manufacturing process of tungsten carbide drill bits, a wear-resistant coating needs to be applied to the surface of the drill bit. However, existing tungsten carbide drill bits have threaded grooves on their surface. The current spraying method uses a spray gun with a large nozzle, which cannot completely coat the inner grooves, resulting in poor coating quality. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a tungsten carbide drill bit coating treatment device, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a tungsten carbide drill bit coating treatment device, which sprays a tungsten carbide drill bit. The surface of the tungsten carbide drill bit has multiple spiral grooves and includes a base. A protective shell is provided above the base. The top of the protective shell is provided with symmetrical clamping parts. The tungsten carbide drill bit is placed inside the protective shell. A collar is slidably fitted inside the protective shell. A rotating ring is pivotally connected to the center of the collar. The tungsten carbide drill bit vertically passes through the rotating ring.
[0008] The inner side of the rotating ring is provided with strip-shaped nozzles, which are inclined. Multiple strip nozzles correspond one-to-one with multiple spiral grooves. The strip nozzles are located in the spiral grooves. The bottom of the rotating ring is connected to a material conveying hose.
[0009] The strip nozzle has small holes at both the top and bottom, and a discharge hole is provided on the inner wall of the rotating ring.
[0010] Preferably, the clamping part includes a protrusion, a crossbar, a spring, and a clamping block. The protrusion is located on the top of the protective shell, and the side of the protrusion facing the center of the protective shell is connected to the crossbar. The crossbar and the clamping block are slidably engaged. One end of the spring is connected to the protrusion, and the other end of the spring is connected to the clamping block.
[0011] Preferably, a slider is connected to the top of the clamping block, and a crossbar passes through the slider.
[0012] Preferably, the inner wall of the protective sleeve is connected to a vertical rod with its bottom pointing vertically downward and connected to the base. A sliding rod is connected to the outer side of the sleeve, and the end of the sliding rod away from the sleeve slides in cooperation with the vertical rod.
[0013] (III) Beneficial Effects
[0014] This utility model provides a coating treatment device for tungsten carbide drill bits. It has the following beneficial effects:
[0015] 1. This tungsten carbide drill bit coating treatment device includes a base, a protective sleeve, a clamping part, a collar, and a rotating ring. A strip-shaped nozzle is located inside the rotating ring. The tungsten carbide drill bit is passed through the rotating ring, so that the strip-shaped nozzle is positioned within the drill bit's spiral groove. During the spraying process, the collar drives the rotating ring to slowly descend, and the strip-shaped nozzle moves along the drill bit's spiral groove, achieving the purpose of grouting spraying within the spiral groove. This improves the spraying effect. Attached Figure Description
[0016] Figure 1 This is a three-dimensional view of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of a partial structure of the present invention.
[0018] Figure 3 This is a partial structural diagram of the present invention;
[0019] Figure 4 This is a schematic diagram of the clamping part of this utility model.
[0020] In the diagram: 1. Base, 2. Protective sleeve, 21. Vertical rod, 3. Clamping part, 31. Protrusion, 32. Horizontal bar, 33. Spring, 34. Clamping block, 35. Sliding block, 4. Ring, 41. Sliding rod, 5. Rotating ring, 51. Strip nozzle, 52. Material conveying hose. Detailed Implementation
[0021] This utility model provides a tungsten carbide drill bit coating treatment device, such as... Figure 1-4 As shown, a tungsten carbide drill bit is sprayed with a coating. The surface of the tungsten carbide drill bit has multiple spiral grooves, including a base 1. A protective sleeve 2 is provided above the base 1. The top of the protective sleeve 2 is provided with symmetrical clamping parts 3. The tungsten carbide drill bit is placed inside the protective sleeve 2. A collar 4 is slidably fitted inside the protective sleeve 2. The collar 4 can move up and down.
[0022] A rotating ring 5 is pivotally connected at the center of the ring 4, and a tungsten carbide drill bit vertically penetrates the rotating ring 5.
[0023] A strip-shaped nozzle 51 is fixedly installed inside the rotating ring 5. The strip-shaped nozzle 51 is inclined, and multiple strip-shaped nozzles 51 correspond one-to-one with multiple spiral grooves. The strip-shaped nozzles 51 are located inside the spiral grooves. A material conveying hose 52 is fixedly installed at the bottom of the rotating ring 5. The aforementioned plastic hose 52 will not get tangled in the tungsten carbide drill bit.
[0024] The strip nozzle 51 has small holes at both its upper and lower ends, and the rotating ring 5 has a discharge hole on its inner wall. The small holes allow the strip nozzle 51 to spray coating onto the grout lines within the spiral groove. There is a certain distance between the inner wall of the rotating ring 5 and the tungsten carbide drill bit. The discharge hole can also spray coating onto the protruding parts of the tungsten carbide drill bit.
[0025] During operation, the rotating ring 4 descends slowly, and the strip nozzle 51 contacts the inner wall of the spiral groove, causing the rotating ring 5 to slowly rotate during its descent. The grouting inside the spiral groove of the tungsten carbide drill bit is then sprayed.
[0026] The clamping part 3 includes a protrusion 31, a crossbar 32, a spring 33, and a clamping block 34. The protrusion 31 is fixedly installed on the top of the protective shell 2. The side of the protrusion 31 facing the center of the protective shell 2 is welded to the crossbar 32. The crossbar 32 and the clamping block 34 are slidably engaged. One end of the spring 33 is welded to the protrusion 31, and the other end of the spring 33 is welded to the clamping block 34.
[0027] The spring 33 elastically pushes the two clamping blocks 34 closer to each other, thereby achieving the purpose of clamping the top of the tungsten carbide drill bit.
[0028] A slider 35 is welded to the top of the clamping block 34, and a crossbar 32 passes through the slider 35.
[0029] A vertical rod 21 is welded to the inner wall of the protective casing 2. The bottom of the vertical rod 21 is vertically downward and is fixedly installed together with the base 1. A sliding rod 41 is welded to the outer side of the collar 4. The end of the sliding rod 41 away from the collar 4 slides in cooperation with the vertical rod 21.
[0030] In summary, this tungsten carbide drill bit coating treatment device comprises a base 1, a protective sleeve 2, a clamping part 3, a collar 4, and a rotating ring 5. A strip-shaped nozzle 51 is located inside the rotating ring 5. The tungsten carbide drill bit is passed through the rotating ring 5, so that the strip-shaped nozzle 51 is positioned within the drill bit's spiral groove. During the spraying process, the collar 4 drives the rotating ring 6 to slowly descend, and the strip-shaped nozzle 51 moves along the drill bit's spiral groove, achieving the purpose of grouting spraying within the spiral groove. This improves the spraying effect.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A coating treatment device for tungsten carbide drill bits, wherein the tungsten carbide drill bit has multiple spiral grooves on its surface, characterized in that: Including base (1), the base (1) is established above protective sleeve shell (2), the protective sleeve shell (2) top is equipped with the clamping part (3) of symmetry, tungsten steel drill bit is settled in protective sleeve shell (2), the sleeve ring (4) is slidably fitted in the protective sleeve shell (2), the sleeve ring (4) centricity is pivoted with rotating ring (5), tungsten steel drill bit vertically penetrates rotating ring (5); The inside of the rotating ring (5) is provided with a strip-shaped nozzle (51), which is inclined, and a plurality of strip-shaped nozzles (51) correspond to a plurality of spiral grooves one by one, the strip-shaped nozzle (51) is in the spiral groove, the bottom of the rotating ring (5) is connected with the material conveying hose (52). The strip-shaped nozzle (51) is provided with a small hole at both ends, and the inner wall of the rotating ring (5) is provided with a discharging hole.
2. A tungsten steel drill bit coating treatment apparatus as defined in claim 1, wherein: The clamping part (3) includes a protrusion (31), a cross bar (32), a spring (33), and a clamping block (34), the protrusion (31) is arranged on the top of the protective sleeve shell (2), the protrusion (31) is connected with the cross bar (32) on the side of the center of the protective sleeve shell (2), the cross bar (32) is slidably connected with the clamping block (34), one end of the spring (33) is connected with the protrusion (31), and the other end of the spring (33) is connected with the clamping block (34).
3. A tungsten steel drill bit coating treatment apparatus as defined in claim 2, wherein: The clamping block (34) is connected with a sliding block (35), and the cross bar (32) penetrates the sliding block (35).
4. A tungsten steel drill bit coating treatment apparatus as defined in claim 3, wherein: The inner wall of the protective sleeve shell (2) is connected with a vertical rod (21), the bottom of the vertical rod (21) is vertically downward, and is connected with the base (1), the outer side of the sleeve ring (4) is connected with a sliding rod (41), and the end of the sliding rod (41) away from the sleeve ring (4) is slidably connected with the vertical rod (21).