CN216461974U

CN216461974U - Drill bit for drilling metal workpiece with surface hardening layer

Info

Publication number: CN216461974U
Application number: CN202023096780.4U
Authority: CN
Inventors: 杨红兵; 田鹏
Original assignee: Hefei Arnold Precision Tools Co ltd
Current assignee: Hefei Arnold Precision Tools Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2022-05-10
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a drill bit for drilling a metal workpiece with a surface hardening layer, which comprises a fixed rod, wherein the bottom end of the fixed rod is fixedly provided with the drill bit, the bottom end of the drill bit is fixedly provided with an alloy head, the lower ends of the front side and the rear side of the alloy head are respectively provided with a semi-arc-shaped notch, two sides of the middle part of the outer part of the fixed rod are respectively and fixedly provided with a left installation arc block and a right installation arc block, and a protective baffle is fixedly arranged between the lower ends of the opposite sides of the left installation arc block and the right installation arc block. According to the utility model, the protective baffles on two sides are arranged on two sides of the outer part of the fixed rod through the left mounting arc block and the right mounting arc block in the process of using the drill bit, and the protective performance of workers in the drilling process is improved through the protective baffles, so that metal fragments are prevented from splashing onto the workers in the drilling process, and the problem of potential safety hazard caused by contact between the workers and the drilling position of the drill bit is also prevented.

Description

Drill bit for drilling metal workpiece with surface hardening layer

Technical Field

The utility model relates to the technical field of drill bits, in particular to a drill bit for drilling a metal workpiece with a surface hardening layer.

Background

The drill bit is a cutting tool adopted by a common drill or a drilling machine to cut a circular hole, the basic principle of the drill bit is to enable the drill bit to cut edges and rotate, cut workpieces and remove drill cuttings through a drill groove, and the commonly used drill bit mainly comprises a twist drill, a flat drill, a center drill, a deep hole drill and a trepanning drill;

a conventional drill for drilling a metal workpiece having a surface-hardened layer has the following disadvantages;

currently, many steps are required in the process of machining the existing metal, and the drill bit in the existing machining mechanism is a very common machining tool, but the existing drill bit for metal machining lacks the protection property.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a drill for drilling a metal workpiece having a surface-hardened layer.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a drill bit for being directed at metal work piece drilling processing that has the surface hardening layer, includes the dead lever, the fixed drill bit that is provided with in dead lever bottom, the fixed alloy head that is provided with in drill bit bottom, the outside middle part both sides of dead lever are equallyd divide and are do not fixed left installation arc piece and the right installation arc piece of being provided with, the fixed guard flap that is provided with between the opposite one side lower extreme of left side installation arc piece, right installation arc piece, the fixed solid fixed ring that is provided with between the lower extreme all around of left side installation arc piece and right installation arc piece outside, the dead lever outside is fixed the installation dog that is provided with of well lower extreme all around.

Preferably, the middle part of one side opposite to the right installation arc block of the left installation arc block is provided with a notch, the inside fixed spring block that is provided with of notch, the fixed spring block is in the one end of keeping away from the notch and the contact of solid fixed ring top.

Preferably, fixed spout and the inside upper end of fixed spout all are hollow structure all seted up to left side installation arc piece, right side installation arc piece front side and rear side one end, fixed ring is inside all fixedly being provided with fixed draw runner in the relative position that is located fixed spout, fixed draw runner all with the inside sliding connection of fixed spout.

Preferably, a rectangular fixing block is fixedly arranged in the middle of the bottom end of the drill bit, a rectangular fixing opening is formed in the middle of the top end of the alloy head, and the rectangular fixing block is in embedded butt joint with the inside of the rectangular fixing opening.

Preferably, rubber layers are fixedly arranged on the opposite sides of the left mounting arc block and the right mounting arc block.

Preferably, the alloy head is of an inverted cone structure, and the protective baffle is made of transparent materials.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, in the process of using the drill bit, the protective baffles at two sides are arranged at two sides of the outer part of the fixed rod through the left mounting arc block and the right mounting arc block, the protection performance of workers in the process of punching is improved through the protective baffles, metal fragments are prevented from splashing on the workers during punching, the problem of potential safety hazard caused by contact between the workers and the punching position of the drill bit is also prevented, punching is carried out through contact between the alloy head and the outer part of a machine during punching, and the strength in the punching process is increased conveniently through the material of the alloy head;

2. when the protective baffle is arranged in the middle of the outer part of the fixed rod, the left installation arc block and the right installation arc block are in contact with the outer part of the fixed rod, the fixed ring is pressed to move downwards and is arranged between the outer parts of the left installation arc block and the right installation arc block to be fixed, the fixed spring block is pressed to move towards the inner part of the notch when the fixed ring moves downwards, and after the fixed ring moves to the lower ends of the outer parts of the left installation arc block and the right installation arc block, the fixed spring block is loosened to enable the bottom end of the fixed spring block to be in contact with the upper end of the fixed ring to be fixed.

Drawings

FIG. 1 is a schematic view of the overall structure of a drill for drilling a metal workpiece having a surface-hardened layer according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 of a drill for drilling a metal workpiece having a surface-hardened layer according to the present invention;

FIG. 3 is a block diagram of a retaining ring and retaining slide in a drill bit for use in drilling a metal workpiece having a hardfacing layer in accordance with the present invention;

fig. 4 is an enlarged structural view at B in fig. 1 of a drill for drilling a metal workpiece having a surface-hardened layer according to the present invention.

In the figure: 1. a half-arc notch; 2. an alloy head; 3. a drill bit; 4. fixing the rod; 5. mounting a stop block; 6. A protective baffle; 7. a fixing ring; 8. the right side is provided with an arc block; 9. a rectangular fixing port; 10. a rectangular fixed block; 11. installing an arc block on the left; 12. fixing a slide bar; 13. fixing the spring block; 14. a recess.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a drill bit for being directed at metal work piece drilling processing that has a surface hardening layer, including

dead lever

4, 4 bottom mounting of dead lever are provided with

drill bit

3, 3 bottom mounting of drill bit are provided with

alloy head

2, 4 outside middle part both sides of dead lever are equallyd divide and are do not fixed left installation arc piece 11 and right installation arc piece 8 of being provided with, left side installation arc piece 11, right side installation arc piece 8 is fixed between the opposite one side lower extreme and is provided with guard flap 6, left side installation arc piece 11 and right installation arc piece 8 outside are fixed all around between the lower extreme and are provided with solid fixed

ring

7, 4 outside fixed installation dog 5 that is provided with of well lower extreme all around of dead lever.

A notch 14 is formed in the middle of one side, opposite to the right mounting arc block 8, of the left mounting arc block 11, a fixed spring block 13 is fixedly arranged in the notch 14, one end, far away from the notch 14, of the fixed spring block 13 is in contact with the top end of a fixed ring 7, therefore, when the protective baffle 6 is mounted in the middle of the outer portion of a fixed rod 4, the left mounting arc block 11, the right mounting arc block 8 and the fixed rod 4 are in external contact, then the fixed ring 7 is pressed to move downwards, the fixed ring 7 is mounted between the outer portions of the left mounting arc block 11 and the right mounting arc block 8 to be fixed, when the fixed ring 7 moves downwards, the fixed spring block 13 is pressed to move towards the inner portion of the notch 14, and after the fixed ring 7 moves to the lower ends of the outer portions of the left mounting arc block 11 and the right mounting arc block 8, the fixed spring block 13 is loosened to enable the bottom end of the fixed spring block 13 to be in contact with the upper end of the fixed ring 7 to be fixed; fixed sliding grooves are formed in one end of the front side and one end of the rear side of each of the left installation arc block 11 and the right installation arc block 8, the upper ends of the inner parts of the fixed sliding grooves are of hollow structures, fixed sliding strips 12 are fixedly arranged in the fixed ring 7 at the opposite positions of the fixed sliding grooves, and the fixed sliding strips 12 are slidably connected with the inner parts of the fixed sliding grooves, so that when the fixed ring 7 is installed between the outer parts of the left installation arc block 11 and the right installation arc block 8 from top to bottom, the fixed sliding strips 12 are in sliding butt joint with the inner parts of the installation sliding grooves to be preliminarily fixed, and the firmness during installation is improved; a rectangular fixing block 10 is fixedly arranged in the middle of the bottom end of the drill 3, a rectangular fixing port 9 is formed in the middle of the top end of the alloy head 2, the rectangular fixing block 10 is in embedded butt joint with the inside of the rectangular fixing port 9 when the alloy head 2 is welded and installed, then the alloy head 2 is fixedly installed through welding, and the transverse strength of the alloy head 2 during rotation is improved through the embedded butt joint matching of the rectangular fixing port 9 and the rectangular fixing block 10; rubber layers are fixedly arranged on the opposite sides of the left mounting arc block 11 and the right mounting arc block 8, so that the friction force generated when the left mounting arc block 11 and the right mounting arc block 8 are mounted is increased through the rubber layers; alloy head 2 is the inverted cone structure, and protective baffle 6 all adopts transparent material to make, and the position of punching is convenient for observe to such material, prevents to appear beating the inclined to one side condition when punching.

The working principle is as follows: in the utility model, the protective baffles 6 at two sides are arranged at two sides of the outer part of the fixed rod 4 through the left mounting arc block 11 and the right mounting arc block 8 in the process of using the drill bit 3, the protective performance of workers in the punching process is improved through the protective baffles 6, metal scraps are prevented from splashing on the workers during punching, the problem of potential safety hazard caused by the contact of the workers and the punching position of the drill bit 3 is also prevented, punching is carried out through the contact of the alloy head 2 and the outer part of a machine during punching, the strength in the punching process is convenient to increase through the material of the alloy head 2, meanwhile, when the protective baffles 6 are arranged at the middle part of the outer part of the fixed rod 4, the left mounting arc block 11 and the right mounting arc block 8 are contacted with the outer part of the fixed rod 4, then the fixed ring 7 is pressed to move downwards and the fixed ring 7 is arranged between the left mounting arc block 11 and the right mounting arc block 8 for fixing, and fixed ring 7 all presses fixed spring piece 13 and moves toward notch 14 inside when moving down, after fixed ring 7 moved the outside lower extreme of left side installation arc piece 11 and right side installation arc piece 8, all loosen fixed spring piece 13 again and make fixed spring piece 13 bottom and fixed ring 7 upper end contact fixed can, such structure is convenient for install fixedly and dismantle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A drill for drilling a metal workpiece having a surface-hardened layer, comprising a fixing rod (4), characterized in that: dead lever (4) bottom mounting is provided with drill bit (3), drill bit (3) bottom mounting is provided with alloy head (2), dead lever (4) outside middle part both sides are equallyd divide and do not fixedly be provided with left side installation arc piece (11) and right side installation arc piece (8), it is fixed between the opposite one side lower extreme of left side installation arc piece (11), right side installation arc piece (8) to be provided with guard flap (6), it is fixed solid fixed ring (7) to be provided with between the outside lower extreme all around of left side installation arc piece (11) and right side installation arc piece (8), dead lever (4) outside is fixed all around well lower extreme and is provided with installation dog (5).

2. A drill for drilling a metal workpiece having a hardfacing layer according to claim 1, wherein: notch (14) have all been seted up with right side installation arc piece (8) opposite side middle part in left side installation arc piece (11), notch (14) inside all is fixed and is provided with fixed spring piece (13), fixed spring piece (13) are in the one end of keeping away from notch (14) and fixed ring (7) top contact.

3. A drill for drilling a metal workpiece having a hardfacing layer according to claim 1, wherein: fixed spout and the inside upper end of fixed spout all are hollow structure all seted up with rear side one end to left side installation arc piece (11), right side installation arc piece (8) front side, fixed ring (7) are inside all fixed being provided with fixed draw runner (12) in the relative position that is located fixed spout, fixed draw runner (12) all with the inside sliding connection of fixed spout.

4. A drill for drilling a metal workpiece having a hardfacing layer according to claim 1, wherein: the bottom middle part of the drill bit (3) is fixedly provided with a rectangular fixing block (10), the middle part of the top end of the alloy head (2) is provided with a rectangular fixing port (9), and the rectangular fixing block (10) is in embedded butt joint with the inside of the rectangular fixing port (9).

5. A drill for drilling a metal workpiece having a hardfacing layer according to claim 1, wherein: and rubber layers are fixedly arranged on the opposite sides of the left mounting arc block (11) and the right mounting arc block (8).

6. A drill for drilling a metal workpiece having a hardfacing layer according to claim 1, wherein: the alloy head (2) is of an inverted cone structure, and the protective baffle (6) is made of transparent materials.