Metal drill bit convenient to assemble and disassemble

Abstract

The metal drill bit comprises a top connecting rod and a metal disc, the top connecting rod is installed and connected to the middle of the upper end of the metal disc, and a quick installation sleeve is arranged in the middle of the lower end of the metal disc. Elastic abutting mechanisms are arranged on the portions, located on the metal disc, of the two sides of the quick mounting sleeve, rotating locking sleeves are arranged at the portions, located on the circumferential side of the quick mounting sleeve, of the lower ends of the elastic abutting mechanisms, and the bottom drill bit can be quickly mounted and dismounted on the quick mounting sleeve through screwing and loosening of the rotating locking sleeves, so that mounting and dismounting are more convenient; and the metal disc achieves an elastic abutting effect through elastic abutting mechanisms on the two sides of the lower end, and the elastic abutting mechanisms elastically abut against the quick mounting sleeve, so that the rotating locking sleeve is abutted and fixed, and threaded rotation of the rotating locking sleeve under drilling shaking is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal drill bit technical field, concretely relates to a metal drill bit convenient to assemble and disassemble. BACKGROUND

[0002] Drill bit is a kind of tool with cutting ability at head end, mainly used to drill through hole or blind hole on solid material.Drill bit is usually made of carbon steel SK, high-speed steel SKH2, SKH3 and other materials, and is subjected to milling or rolling, and then quenching and tempering heat treatment, and is widely used in drilling machine, lathe, milling machine and hand drill and other machine tools.

[0003] The existing Chinese patent CN215280010U discloses a drill bit for metal processing on December 24, 2021, which comprises a drill rod, a cutting edge fixedly connected to the surface of the drill rod, a fixed head fixedly connected to the top of the drill rod, and an installation head fixedly connected to the top of the fixed head. The drill rod comprises a surface protection layer, a first base material layer and a reinforcing layer. The reinforcing layer is fixedly connected to the outside of the first base material layer, and the first base material layer is fixedly connected to the outside of the surface protection layer.

[0004] However, the above-mentioned drill bit for metal processing cannot be effectively and quickly disassembled when replaced, and lacks corresponding quick mounting structure, making it not very convenient to replace. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a metal drill bit convenient to assemble and disassemble to solve the problem that the drill bit for metal processing cannot be effectively and quickly disassembled when replaced, and lacks corresponding quick mounting structure, making it not very convenient to replace in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a metal drill bit convenient to assemble and disassemble, comprising a top connecting rod and a metal disc, the top connecting rod is installed and connected to the middle position of the upper end of the metal disc, the middle of the lower end of the metal disc is provided with a quick mounting sleeve, the two sides of the quick mounting sleeve are provided with an elastic abutting mechanism on the metal disc, the lower end of the elastic abutting mechanism is provided with a rotating locking sleeve on the side of the quick mounting sleeve, and the lower end of the quick mounting sleeve is clamped and fixed with a bottom drill bit through the rotating locking sleeve.

[0007] The quick mounting sleeve comprises an open slot hole, a sleeve shell and a positioning sleeve slot, the lower end of the sleeve shell is provided with a positioning sleeve slot inside, the two sides of the positioning sleeve slot are provided with an open slot hole at the inner wall of the sleeve shell, the upper end of the sleeve shell is connected to the metal disc, and the lower end of the sleeve shell is sleeved on the bottom drill bit through the positioning sleeve slot.

[0008] The elastic resistance mechanism comprises a welded base plate, a resistance spring, an internal rubber column, a resistance convex particle and a ball bead disc, the middle of the lower end of the welded base plate is provided with the internal rubber column, the circumferential side of the internal rubber column is provided with the resistance spring on the welded base plate, the lower end of the internal rubber column and the resistance spring is provided with the ball bead disc, the inner side of the lower end of the ball bead disc is provided with the resistance convex particle, the ball bead disc is in resistance contact with the rotating locking sleeve through the resistance convex particle, and the welded base plate is fixedly connected on the metal disc.

[0009] The rotating locking sleeve comprises an outer side rotating rod, an intermediate sleeve ring, an internal screw groove and a metal ring, the lower end of the metal ring is provided with the intermediate sleeve ring, the inner side of the metal ring and the intermediate sleeve ring is provided with the internal screw groove, the inner side of the two ends of the intermediate sleeve ring is provided with the outer side rotating rod, and the intermediate sleeve ring and the metal ring are screw threadedly and rotationally connected with the quick mounting sleeve through the internal screw groove.

[0010] The bottom drill bit comprises a drill rod, a drilling blade and a positioning sleeve column, the middle of the lower end of the positioning sleeve column is provided with the drill rod, the circumferential side of the drill rod is provided with the drilling blade, and the positioning sleeve column is mounted and connected on the quick mounting sleeve.

[0011] The elastic resistance mechanism is symmetrically arranged on the two sides of the lower end of the metal disc.

[0012] The center of the top connecting rod, the metal disc, the quick mounting sleeve, the rotating locking sleeve and the bottom drill bit is on the same straight line.

[0013] The quick mounting sleeve and the rotating locking sleeve are screw threadedly and rotationally connected, and the rotating locking sleeve is screw threadedly and rotationally connected on the circumferential side of the quick mounting sleeve.

[0014] Due to the adoption of the above-mentioned technology, the beneficial effects of the metal drill bit are as follows:

[0015] 1. In the metal drill bit, the bottom drill bit can be quickly mounted and dismounted on the quick mounting sleeve through the tightening and loosening of the rotating locking sleeve, so that the mounting and dismounting is more convenient.

[0016] 2. In the metal drill bit, the metal disc is elastically resisted through the elastic resistance mechanisms on the two sides of the lower end, the elastic resistance mechanisms are elastically resisted on the quick mounting sleeve, so that the rotating locking sleeve is fixedly resisted, and the threaded rotation of the rotating locking sleeve under the shaking of drilling is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the metal drill bit convenient to mount and dismount;

[0018] Figure 2 is a schematic diagram of the elastic resistance mechanism structure of the metal drill bit convenient to assemble and disassemble of the utility model;

[0019] Figure 3 is a schematic diagram of the quick mounting sleeve structure of the metal drill bit convenient to assemble and disassemble of the utility model;

[0020] Figure 4 is a schematic diagram of the rotating locking sleeve structure of the metal drill bit convenient to assemble and disassemble of the utility model;

[0021] Figure 5 is a schematic diagram of the bottom drill bit structure of the metal drill bit convenient to assemble and disassemble of the utility model.

[0022] In the figure: 1, top connecting rod; 11, metal disc; 2, elastic resistance mechanism; 21, welded bottom plate; 22, resistance spring; 23, internal rubber column; 24, resistance convex particle; 25, ball bead disc; 3, quick mounting sleeve; 31, open slot hole; 32, sleeve shell; 33, positioning sleeve groove; 4, rotating locking sleeve; 41, outer rotating rod; 42, middle sleeve ring; 43, internal thread groove; 44, metal ring; 5, bottom drill bit; 51, drill rod; 52, drill hole cutting edge; 53, positioning sleeve column. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

[0024] Embodiment one

[0025] With reference to Figure 1 , Figure 3 and Figure 4The utility model discloses a metal drill bit of convenient installation and disassembly, including top connecting rod 1 and metal disc 11, top connecting rod 1 is installed and is connected in the middle position of the upper end of metal disc 11, and metal disc 11 is connected with external drilling equipment through the top connecting rod 1 of upper end, and the lower end of metal disc 11 is fixedly connected with quick mounting sleeve 3, and the both sides of quick mounting sleeve 3 are installed with elastic resistance mechanism 2 on metal disc 11, and metal disc 11 passes through the both sides elastic resistance mechanism 2 of lower end, so that the elastic resistance effect is formed, and the lower end of elastic resistance mechanism 2 is screwly connected with rotating locking sleeve 4 on the lateral side of quick mounting sleeve 3, and elastic resistance mechanism 2 is elastically resisted on quick mounting sleeve 3, thereby the resistance fixed effect of rotating locking sleeve 4 is formed, and the threaded rotation of rotating locking sleeve 4 under the drilling shaking is avoided, and the lower end of quick mounting sleeve 3 is clamped and fixed with bottom drill bit 5 through rotating locking sleeve 4, and bottom drill bit 5 can be quickly mounted and dismounted on quick mounting sleeve 3 through the tightening and loosening of rotating locking sleeve 4, so that the installation and dismounting are more convenient.

[0026] Quick mounting sleeve 3 includes opening slot hole 31, sleeve shell 32 and positioning sleeve slot 33, and the lower end of sleeve shell 32 is provided with positioning sleeve slot 33 in the inside, and the lower end of sleeve shell 32 is clamped on bottom drill bit 5 through positioning sleeve slot 33, so that bottom drill bit 5 can be positioned and mounted quickly, and the both sides of positioning sleeve slot 33 are provided with opening slot hole 31 at the inner wall of sleeve shell 32, and bottom drill bit 5 can extrude sleeve shell 32 to expand outward after being sleeved due to the region of opening slot hole 31, and rotating locking sleeve 4 can effectively tighten sleeve shell 32 when being moved under rotation, so that sleeve shell 32 can effectively fix bottom drill bit 5, and the upper end of sleeve shell 32 is fixedly connected on metal disc 11, and sleeve shell 32 can be stably placed.

[0027] In the utility model, rotating locking sleeve 4 includes outside rotary lever 41, middle sleeve ring 42, internal thread groove 43 and metal ring 44, the lower end of metal ring 44 is fixedly connected with middle sleeve ring 42, and the inside of metal ring 44 and middle sleeve ring 42 is provided with internal thread groove 43, and middle sleeve ring 42 and metal ring 44 are screwly and rotationally connected with quick mounting sleeve 3 through internal thread groove 43, so that middle sleeve ring 42 and metal ring 44 can screw and rotate and lift, and the both ends of middle sleeve ring 42 are fixedly connected with outside rotary lever 41, so that personnel operation and rotation use are facilitated when rotating.

[0028] In the utility model, the center of top connecting rod 1, metal disc 11, quick mounting sleeve 3, rotating locking sleeve 4 and bottom drill bit 5 is on the same straight line, so that it is more stable when rotating.

[0029] The utility model discloses, quick -witted installation sleeve 3 and rotating locking sleeve 4 are connected through the thread rotation, thereby convenient for thread rotation and go up and down, and rotating locking sleeve 4 is connected on the circumferential side of quick -witted installation sleeve 3 with thread rotation, so this can position rotation and use.

[0030] Embodiment two

[0031] With reference to Figure 1 And Figure 2 , a metal drill bit is convenient to assemble and disassemble, compared with embodiment one, the elastic resisting mechanism 2 includes the welding base plate 21, the resisting spring 22, the internal rubber column 23, the resisting convex grain 24 and the ball bead disc 25, the welding base plate 21 is fixedly connected on the metal disc 11, so that it can be placed correspondingly, the lower end of the welding base plate 21 is provided with the internal rubber column 23, the internal rubber column 23 has elastic stretchability, can change length, the circumferential side of the internal rubber column 23 is provided with the resisting spring 22 on the welding base plate 21, the resisting spring 22 and the internal rubber column 23 can correspond to elastic resistance, the lower end of the internal rubber column 23 and the resisting spring 22 is fixedly connected with the ball bead disc 25, the lower end of the ball bead disc 25 is provided with the resisting convex grain 24 on the inside, the ball bead disc 25 is contacted with the rotating locking sleeve 4 through the resisting convex grain 24, so that it can be effectively resisted and fixed.

[0032] In the utility model, the elastic resisting mechanism 2 is installed with two, and the elastic resisting mechanism 2 is symmetrically installed on the lower end of the metal disc 11, so that the elastic resisting mechanism 2 can resist on the lower end of the metal disc 11.

[0033] Embodiment three

[0034] With reference to Figure 1 , Figure 3 And Figure 5 , a metal drill bit is convenient to assemble and disassemble, compared with embodiment two, the bottom drill bit 5 includes the drill rod 51, the drill bit 52 and the positioning sleeve column 53, the positioning sleeve column 53 is installed and is connected on the quick -witted installation sleeve 3, so that it can be connected correspondingly, the lower end of the positioning sleeve column 53 is fixedly connected with the drill rod 51, the circumferential side of the drill rod 51 is integrally connected with the drill bit 52, so that it is convenient to rotate and drill.

[0035] Working principle: when using, the metal disc 11 is connected with the external drilling equipment rotation through the top connecting rod 1 of upper end, the metal disc 11 passes through the elastic resisting mechanism 2 on the lower end of both sides, so that the elastic resisting effect is played, the elastic resisting mechanism 2 is elastically resisted on the quick -witted installation sleeve 3, so that the rotating locking sleeve 4 is resisted and fixed, avoids the thread rotation of rotating locking sleeve 4 under the drilling shaking, through the tightening and loosening of rotating locking sleeve 4, the bottom drill bit 5 can be quickly assembled and disassembled on the quick -witted installation sleeve 3, so that it is more convenient when assembling.

[0036] The above merely provides the preferred embodiment of the present application, and the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, should be covered within the protection scope of the present application.

[0037] It should be noted that, in this text, relational terms such as first and second and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

Claims

1. A metal drill bit which is easy to assemble and disassemble, comprising a top connecting rod (1) and a metal disc (11), said top connecting rod (1) being mounted and connected to the metal disc (11) at the middle of the upper end of the metal disc (11), characterized in that: The lower end of the metal disc (11) is provided with a quick mounting sleeve (3), the two sides of the quick mounting sleeve (3) are provided with an elastic abutting mechanism (2) on the metal disc (11), the lower end of the elastic abutting mechanism (2) is provided with a rotating locking sleeve (4) on the side of the quick mounting sleeve (3), and the lower end of the quick mounting sleeve (3) is clamped and fixed with a bottom drill bit (5) through the rotating locking sleeve (4). The quick mounting sleeve (3) comprises an open slot hole (31), a sleeve shell (32) and a positioning sleeve slot (33), the lower end of the sleeve shell (32) is internally provided with the positioning sleeve slot (33), the two sides of the positioning sleeve slot (33) are provided with the open slot hole (31) at the inner wall of the sleeve shell (32), the upper end of the sleeve shell (32) is connected to the metal disc (11), and the lower end of the sleeve shell (32) is sleeved on the bottom drill bit (5) through the positioning sleeve slot (33).

2. The metal drill bit of claim 1, wherein: The elastic abutting mechanism (2) comprises a welded bottom plate (21), an abutting spring (22), an internal rubber column (23), an abutting convex particle (24) and a ball bead disc (25), the lower end of the welded bottom plate (21) is provided with the internal rubber column (23), the side of the internal rubber column (23) is provided with the abutting spring (22) on the welded bottom plate (21), the lower end of the internal rubber column (23) and the abutting spring (22) is provided with the ball bead disc (25), the lower end of the ball bead disc (25) is provided with the abutting convex particle (24), the ball bead disc (25) is in abutting contact with the rotating locking sleeve (4) through the abutting convex particle (24), and the welded bottom plate (21) is fixedly connected to the metal disc (11).

3. The quick detachable metal drill bit of claim 2, wherein: The rotating locking sleeve (4) comprises an outer side rotating rod (41), a middle sleeve ring (42), an internal screw groove (43) and a metal ring (44), the lower end of the metal ring (44) is provided with the middle sleeve ring (42), the inner side of the metal ring (44) and the middle sleeve ring (42) is provided with the internal screw groove (43), the inner side of the two ends of the middle sleeve ring (42) is provided with the outer side rotating rod (41), and the middle sleeve ring (42) and the metal ring (44) are threadedly and rotationally connected with the quick mounting sleeve (3) through the internal screw groove (43).

4. The quick detachable metal drill bit of claim 1, wherein: The bottom drill bit (5) comprises a drill rod (51), a drilling blade (52) and a positioning sleeve column (53), the lower end of the positioning sleeve column (53) is provided with the drill rod (51), the side of the drill rod (51) is provided with the drilling blade (52), and the positioning sleeve column (53) is mounted and connected to the quick mounting sleeve (3).

5. The quick detachable metal drill bit of claim 2, wherein: The two elastic abutting mechanisms (2) are symmetrically arranged on the two sides of the lower end of the metal disc (11).

6. The quick detachable metal drill bit of claim 1, wherein: The centers of the top connecting rod (1), the metal disc (11), the quick mounting sleeve (3), the rotating locking sleeve (4) and the bottom drill bit (5) are on the same straight line.

7. The quick detachable metal drill bit of claim 1, wherein: The quick mounting sleeve (3) and the rotation locking sleeve (4) are connected through thread rotation, and the rotation locking sleeve (4) is connected on the circumferential side of the quick mounting sleeve (3) through thread rotation.

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