Three-edge lifting opening tapping drill bit

Abstract

The utility model discloses a three-edge mouth-lifting tapping drill bit, which relates to the technical field of water pipe processing, and comprises a fixed column and a tapping part, a clamping groove is arranged on the outer side of the upper part of the fixed column, a cutting edge is arranged at the bottom of the fixed column, a tapping part is arranged on the lower part of the cutting edge, and a reaming part is arranged in the middle of the cutting edge. The tapping part is arranged on the outer sides of the upper portions of the cutting edges, and chip grooves are formed between the cutting edges. According to the three-blade opening-lifting tapping drill bit, the tapping parts are integrated on the cutting blades, so that when driving equipment drives the fixing column to rotate, the tapping parts and the reaming parts of the cutting blades can be used for tapping a water pipe directly after the water pipe is perforated and flared, and the drill bit does not need to be replaced additionally; by means of the structure, convenience in the water pipe machining process can be improved, the efficiency and precision of drilling, reaming and tapping can be improved through the arrangement of the three cutting edges, and meanwhile waste chips can be conveniently discharged out of the chip grooves.

Description

Technical Field

[0001] This utility model relates to the field of water pipe processing technology, specifically a three-bladed lifting and opening drill bit. Background Technology

[0002] PPR, commonly known as Type III polypropylene, is a replacement product for UPVC water pipes, aluminum-plastic pipes, PE pipes, PE-X pipes, and PE-RT pipes. Due to its use of random copolymerization technology, the strength and high-temperature resistance of polypropylene are well guaranteed, making it the main material for water pipes. When processing PPR water pipes, a drill bit is needed to open and enlarge the holes.

[0003] Existing tapping drill bits can mostly only perform hole opening and enlarging operations when processing PPR water pipes. However, if tapping is required after opening the hole, an additional tapping drill bit needs to be replaced, which affects the overall processing efficiency of the water pipe due to the replacement operation steps.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a three-bladed thread-opening drill bit. Utility Model Content

[0005] The purpose of this invention is to provide a three-bladed, lifting-mouth thread-opening drill bit to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-blade lifting-mouth thread-opening drill bit, comprising a fixing post and a tapping part, wherein a locking groove is provided on the upper outer side of the fixing post, and a cutting edge is provided at the bottom of the fixing post, an opening part is provided at the lower part of the cutting edge, and an enlarging part is provided in the middle part of the cutting edge, the tapping part is provided on the upper outer side of the cutting edge, and a chip removal groove is provided between the cutting edges.

[0007] Furthermore, a rotating shaft is provided on the lower side of the cutting edge, and the end of the rotating shaft is rotatably connected to the blade.

[0008] Furthermore, a protruding strip is fixed on one side of the blade, and a stop is provided at the lower part of the blade, and the stop is fixedly connected to the cutting edge.

[0009] Furthermore, an adjustment component is provided on the lower outer side of the fixed column. The adjustment component includes a sliding sleeve and a stop bar. The sliding sleeve is slidably connected to the lower outer side of the fixed column, and the stop bar is fixed at the bottom of the sliding sleeve.

[0010] Furthermore, the stop rods are equidistantly distributed around the bottom of the sliding sleeve, and the stop rods are slidably connected to the cutting edge.

[0011] Furthermore, the adjusting assembly also includes a threaded hole and a screw. A threaded hole is provided on one side of the sliding sleeve, and a screw is threadedly connected to the inside of the threaded hole.

[0012] Furthermore, the adjustment assembly also includes an anti-slip knob and an anti-slip pad. One end of the screw is fixed with an anti-slip knob, and the other end of the screw is connected to an anti-slip pad.

[0013] Furthermore, the fixing post is hexagonal prism-shaped and fits tightly against the anti-slip pad.

[0014] This utility model provides a three-flute lifting thread-opening drill bit, which has the following beneficial effects:

[0015] 1. This utility model integrates the tapping part on the cutting edge. Therefore, when the drive device drives the fixed column to rotate, the opening part and the reaming part of the cutting edge can be used to open and ream the water pipe. Then, the tapping part can be used directly to tap the water pipe. Therefore, there is no need to replace the drill bit. This is beneficial to improve the convenience of the water pipe processing process. In addition, the setting of three cutting edges can improve the efficiency and accuracy of drilling, reaming and tapping. At the same time, the waste chips are also easy to be discharged from the chip removal groove.

[0016] 2. By adjusting the component settings, this utility model can address the issue of numerous burrs appearing at the upper part of the water pipe opening after drilling and tapping. At this point, the anti-slip knob can be used to rotate the screw, separating the anti-slip pad from the fixed post. Then, the sliding sleeve is applied, and the stop bar no longer obstructs the blade, allowing the blade to unfold via the protrusion. The stop bar then presses the blade firmly against the stop block. Rotating the anti-slip knob locks the height of the sliding sleeve, preventing the blade from rotating. When the external drive device rotates the fixed post, the blade can scrape away the excess burrs, further expanding the drill bit's usability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a three-bladed lifting-mouth wire-opening drill bit according to the present invention;

[0018] Figure 2 This is a schematic diagram of the unfolded blade structure of a three-blade lifting and opening drill bit according to the present invention;

[0019] Figure 3 This is an exploded structural diagram of the adjustment component of a three-bladed lifting and opening drill bit according to the present invention.

[0020] In the diagram: 1. Fixed post; 2. Snap-fit ​​groove; 3. Cutting edge; 4. Opening part; 5. Enlarging part; 6. Tapping part; 7. Chip removal groove; 8. Rotating shaft; 9. Blade; 10. Raised bar; 11. Stop block; 12. Adjustment component; 1201. Sliding sleeve; 1202. Stop bar; 1203. Threaded hole; 1204. Screw; 1205. Anti-slip knob; 1206. Anti-slip pad. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1 As shown, a three-blade tapping drill bit includes a fixed post 1 and a tapping part 6. The upper outer side of the fixed post 1 is provided with a retaining groove 2, and the bottom of the fixed post 1 is provided with a cutting edge 3. The setting of three cutting edges 3 can improve the efficiency and accuracy of drilling and tapping. The lower part of the cutting edge 3 is provided with an opening part 4, and the middle part of the cutting edge 3 is provided with an enlarging part 5. The tapping part 6 is located on the upper outer side of the cutting edge 3. When the electric drill head drives the fixed post 1 to rotate, the opening part 4 and the enlarging part 5 of the cutting edge 3 can be used to open and enlarge the water pipe, and the tapping part 6 can be used directly to tap the water pipe. A chip removal groove 7 is provided between the cutting edges 3, and the waste chips can be discharged from the chip removal groove 7.

[0023] like Figure 2 and Figure 3As shown, a rotating shaft 8 is mounted on one side of the lower part of the cutting edge 3, and a blade 9 is rotatably connected to the end of the rotating shaft 8. After the blade 9 is unfolded, when the external drive device drives the fixed column 1 to rotate, the blade 9 can scrape off excess burrs. A protrusion 10 is fixed on one side of the blade 9, and a stop 11 is provided at the lower part of the blade 9. The stop 11 is fixedly connected to the cutting edge 3 and restricts the rotation position of the blade 9. An adjustment assembly 12 is provided on the lower outer side of the fixed column 1. The adjustment assembly 12 includes a sliding sleeve 1201 and a stop rod 1202. The sliding sleeve 1201 is slidably connected to the lower outer side of the fixed column 1, and the stop rod 1202 is fixed to the bottom of the sliding sleeve 1201. The stop rod 1202 is equidistantly distributed circumferentially about the bottom of the sliding sleeve 1201, and the stop rod 1202 is slidably connected to the cutting edge 3. The adjustment assembly 12 also includes a threaded hole 1203 and a screw 1204. A threaded hole 1203 is provided on the side, and a screw 1204 is connected to the internal thread of the threaded hole 1203. The adjusting assembly 12 also includes an anti-slip knob 1205 and an anti-slip pad 1206. One end of the screw 1204 is fixed with the anti-slip knob 1205, and the other end of the screw 1204 is connected with the anti-slip pad 1206. The anti-slip knob 1205 drives the screw 1204 to rotate, causing the anti-slip pad 1206 to separate from the fixed post 1, and then the sliding sleeve is applied. 1201, the stop lever 1202 no longer obstructs the blade 9, so that the blade 9 can be unfolded through the protrusion 10. The fixing post 1 is hexagonal prism, and the fixing post 1 and the anti-slip pad 1206 are tightly attached. After the control stop lever 1202 presses the blade 9 onto the stop block 11, the anti-slip knob 1205 is rotated to make the anti-slip pad 1206 and the fixing post 1 stick tightly. The greater friction force can be used to lock the height of the sliding sleeve 1201 to prevent the blade 9 from rotating.

[0024] In summary, when using this three-flute thread-opening drill bit, firstly according to... Figure 1 , Figure 2 and Figure 3The structure shown first involves inserting the fixing post 1 into the head of the electric drill. Then, the drill bit is secured using the head's locking mechanism and locking groove 2. Next, when the drive unit rotates the fixing post 1, the opening portion 4 and the reaming portion 5 of the cutting edge 3 open and enlarge the water pipe. The tapping portion 6 can then be used to directly tap the water pipe, while simultaneously facilitating the discharge of chips from the chip removal groove 7. After drilling and tapping all designated locations on the water pipe, the drill bit is removed, and the screw 1 is driven by the anti-slip knob 1205. Rotating 204 separates the anti-slip pad 1206 from the fixed post 1. Then, the sliding sleeve 1201 is installed, and the stop bar 1202 no longer blocks the blade 9, allowing the blade 9 to be unfolded through the protrusion 10. At this time, the stop bar 1202 can also press the blade 9 tightly onto the stop block 11. Then, rotating the anti-slip knob 1205 locks the height of the sliding sleeve 1201, which can prevent the blade 9 from rotating. Finally, controlling the electric drill head to drive the fixed post 1 to rotate allows the blade 9 to scrape off the excess burrs at the upper end of the water pipe hole.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A three-lip pilot point tap comprising a fixed shank (1) and a tapping portion (6), characterized in that, The fixing column (1) upper outer side is provided with clamping groove (2), and the bottom of fixing column (1) is provided with cutting edge (3), the lower part of cutting edge (3) is provided with opening part (4), and the middle part of cutting edge (3) is provided with reaming part (5), the tapping part (6) is arranged on the upper outer side of cutting edge (3), and the cutting edge (3) is provided with chip removal groove (7).

2. A three-lip, lip-and-flash drill bit according to claim 1, wherein, The lower part of cutting edge (3) is provided with rotating shaft (8), and the end of rotating shaft (8) is rotatably connected with blade (9).

3. A three-lip, lip-and-flash drill bit according to claim 2, wherein, The side of blade (9) is fixed with convex strip (10), the lower part of blade (9) is provided with stop block (11), and stop block (11) is fixedly connected with cutting edge (3).

4. The three-lip, lead-in, open-silk bit of claim 1 wherein, The lower outer side of fixing column (1) is provided with adjusting assembly (12), the adjusting assembly (12) includes sliding sleeve (1201) and stop rod (1202), the lower end outer side of fixing column (1) is slidably connected with sliding sleeve (1201), and the bottom of sliding sleeve (1201) is fixed with stop rod (1202).

5. A three-lip, lead-up, parting, and flaking drill bit according to claim 4, wherein, The stop rod (1202) is equidistantly circumferentially distributed about the bottom of sliding sleeve (1201), and the stop rod (1202) is slidably connected with cutting edge (3).

6. A three-lip, lead-up, parting, and flaking drill bit according to claim 4, wherein, The adjusting assembly (12) further includes threaded hole (1203) and screw rod (1204), one side of sliding sleeve (1201) is provided with threaded hole (1203), and the inside of threaded hole (1203) is threadedly connected with screw rod (1204).

7. A three-lip, lead-up, parting, and flaking drill bit according to claim 6, wherein, The adjusting assembly (12) further includes anti-skid knob (1205) and anti-skid pad (1206), one end of screw rod (1204) is fixed with anti-skid knob (1205), and the other end of screw rod (1204) is connected with anti-skid pad (1206).

8. A three-lip, lead-up, parting, and flaking drill bit according to claim 7, wherein, The fixing column (1) is hexagonal, and the fixing column (1) is closely attached to the anti-skid pad (1206).

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