CN220838092U

CN220838092U - Drill bit with burr prevention function

Info

Publication number: CN220838092U
Application number: CN202322660019.6U
Authority: CN
Inventors: 张锦; 谭秋红; 胡瀚哲; 胡铁骨; 胡贝
Original assignee: Hi Wei One Beijing Cutter Co ltd
Current assignee: Hi Wei One Beijing Cutter Co ltd
Priority date: 2023-10-04
Filing date: 2023-10-04
Publication date: 2024-04-26
Anticipated expiration: 2033-10-04

Abstract

The utility model relates to a drill bit with a burr prevention function, which comprises a drill bit body, wherein the lower surface of the drill bit body is provided with a disassembly and assembly mechanism for fixing the drill bit body, the outer side of the disassembly and assembly mechanism is provided with a connecting plate, the lower surface of the connecting plate is fixedly provided with a drill shank, the left side and the right side of the connecting plate are respectively provided with an anti-collision mechanism for blocking collision, and the disassembly and assembly mechanism comprises two connecting blocks fixed on the lower surface of the drill bit body, and the outer sides of the connecting blocks are spliced with the connecting plates. This drill bit with burr prevention function, under the effect of dismouting mechanism through first reset spring, fixture block, connecting block, fly leaf, press briquetting, reset plate, cooperation of second reset spring and slide link together drill bit body and drill shank through the connecting plate, make things convenient for the workman to split at any time and change out the drill bit of damage or change into the drill bit of different models simultaneously, the drill bit and the drill shank that split make under the manufacturing cost will then reduce use cost.

Description

Drill bit with burr prevention function

Technical Field

The utility model relates to the technical field of drill bits, in particular to a drill bit with a burr prevention function.

Background

The rotary drill bit is a drill bit commonly used at present, and is driven by a machine to rotate so as to drive the whole drill bit to perform centripetal motion, thereby playing a role of drilling.

For example, chinese patent CN218224784U, the present utility model belongs to the technical field of drill bits, and in particular, relates to a drill bit capable of finishing a drilled hole, which includes a drill shank and a drill rod, wherein one end of the drill rod is connected with one end of the drill shank; the side surface of the drill rod is sequentially provided with a plurality of right-hand blades and a plurality of left-hand blades in a spiral manner; the right-hand knife edge is arranged at the other end of the drill rod; the rotation directions of the left-hand blade and the right-hand blade are opposite, and a first groove is formed between the right-hand blades; a second groove is formed between the left-handed blades; the width of the first groove is smaller than that of the second groove; the right-hand knife edge and the left-hand knife edge are made of high-carbon steel, when the drill is carried out, the right-hand knife edge firstly drills into a workpiece to form a rough machining hole with burrs in the workpiece, and as the left-hand knife edge discharges cutting scraps downwards when cutting, the function of restraining burrs is achieved, the left-hand knife edge drills into the rough machining hole after the right-hand knife edge, and the inner wall of the machining hole can be finished, so that the machining hole reaches the required roughness.

The above patent has a certain defect that the cutting chips are discharged downwards when the left-hand blade is used for cutting, so that burrs are restrained, but the drill bit is worn and broken in the using process, the drill bit is generally welded with the drill shank, the drill shank is good when the drill bit is damaged, and the drill bit cannot be continuously used once the drill bit is damaged until the drill shank cannot be used, so that the replacement cost and the manufacturing cost are both increased.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the drill bit with the burr prevention function, has the advantages of convenience in replacing the drill bit and the like, and solves the problem that the drill bit cannot be continuously used once being damaged until the drill handle cannot be used.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the drill bit with the burr prevention function comprises a drill bit body, wherein the lower surface of the drill bit body is provided with a disassembly and assembly mechanism for fixing the drill bit body, the outer side of the disassembly and assembly mechanism is provided with a connecting plate, the lower surface of the connecting plate is fixedly provided with a drill shank, and the left side and the right side of the connecting plate are respectively provided with an anti-collision mechanism for blocking collision;

The disassembly and assembly mechanism comprises two connecting blocks fixed on the lower surface of the drill bit body, a connecting plate is inserted in the outer side of the connecting block, two first reset springs are fixed in the inner cavity of the connecting plate, two movable plates which are connected inside the connecting plate in a sliding mode are fixed on the opposite sides of the first reset springs, a pressing block is fixed on one side, away from the first reset springs, of the movable plate, a sliding plate which is connected inside the connecting plate in a sliding mode is fixed on one side, close to the first reset springs, of the movable plate, a reset plate which is connected inside the connecting plate in a sliding mode is fixed on one side, away from the sliding plate, of the second reset springs is fixed on one side, away from the second reset springs, of the reset plate, and a clamping block located on the upper side of the sliding plate is fixed on the clamping block, and inserted in the connecting block.

Further, the upper surface of connecting plate has offered the spread groove that supplies the connecting block to peg graft, two the draw-in groove that supplies the fixture block to peg graft has all been seted up to the opposite one side of connecting block.

Further, the inside of connecting plate has been seted up and has been supplied fly leaf sliding connection's movable groove, the inside of connecting plate has been seted up and has been supplied to press the pressing hole that the piece runs through, and presses the piece through pressing hole and connecting plate clearance fit.

Further, a reset groove for sliding connection of the reset plate is formed in the connecting plate, and a sliding groove for sliding connection of the sliding plate is formed in the movable plate.

Further, anticollision institution is including fixing two fixed blocks in the connecting plate left and right sides respectively, the outside sliding connection of fixed block has the anticollision case, the inside of fixed block is fixed with two spacing springs, and adjacent two spacing spring is all fixed with the stopper of grafting in the inside of anticollision case on one side of being on the back mutually.

Further, the shape of crashproof case is inside cavity and is close to the cuboid that one side of connecting plate lacks, the shape of fixed block is inside cavity and the cuboid that both sides all were missed about.

Further, limiting grooves for inserting limiting blocks are formed in the top wall and the bottom wall of the inner cavity of the anti-collision box, and the shape of the opposite side of the limiting blocks on the upper side and the lower side is semicircular.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. This drill bit with burr prevention function, through first reset spring, fixture block, connecting block, fly leaf under the effect of dismouting mechanism, press briquetting, reset plate, cooperation of second reset spring and slide is in the same place drill bit body and drill shank through the connecting plate, make things convenient for the workman to break its split at any time and change the drill bit of damage or change into the drill bit of different models simultaneously, the drill bit and the drill shank that break apart make under the manufacturing cost will then reduce use cost, the drill bit of different models of change that can be more convenient and fast simultaneously.

2. This drill bit with burr prevention function presses the briquetting through the protection of crashproof case under crashproof mechanism's effect and does not receive the striking of other objects when not using, avoids it to receive the striking to filter and violently leads to the connection of drill bit body not hard up break away even, restricts the crashproof case in the outside of fixed block through the cooperation of spacing spring and stopper simultaneously for crashproof case can't remove at will.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a disassembly and assembly mechanism according to the present utility model;

FIG. 3 is a schematic view of an anti-collision mechanism according to the present utility model.

In the figure: 1a dismounting mechanism, a first return spring 101, a clamping block 102, a connecting block 103, a movable plate 104, a pressing block 105, a reset plate 106, a second return spring 107, a sliding plate 108, a 2 anti-collision mechanism, a limiting spring 201, a 202 anti-collision box, a 203 fixed block, a 204 limiting block, a 3-bit body, a 4-connecting plate and a 5-bit drill shank.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a drill bit with a burr prevention function in the present embodiment includes a drill bit body 3, the drill bit body 3 is a common drill bit with a burr prevention function on the market, a dismounting mechanism 1 for fixing the drill bit body 3 is disposed on the lower surface of the drill bit body 3, a connecting plate 4 is disposed on the outer side of the dismounting mechanism 1, a drill shank 5 is fixed on the lower surface of the connecting plate 4, and anti-collision mechanisms 2 for blocking collision are disposed on the left and right sides of the connecting plate 4.

Referring to fig. 2, in order to facilitate dismounting of a damaged drill bit, the dismounting mechanism 1 in this embodiment includes two connection blocks 103 fixed on the lower surface of the drill bit body 3, and the connection plate 4 is inserted in the outer side of the connection block 103, two first return springs 101 are fixed in the inner cavity of the connection plate 4, movable plates 104 slidably connected in the connection plate 4 are fixed on opposite sides of the first return springs 101, a pressing block 105 is fixed on one side of the movable plates 104 away from the first return springs 101, a sliding plate 108 slidably connected in the connection plate 4 is fixed on one side of the movable plates 104 close to the first return springs 101, a reset plate 106 slidably connected in the connection plate 4 is fixed on one side of the sliding plate 108 away from the movable plates 104, a second return spring 107 is fixed on one side of the reset plate 106 away from the second return springs 107, the second return springs 107 are fixed in the inner side of the reset plate 106, clamping blocks 102 are inserted in the connection block 103, the pressing block 105 drives the movable plates 104 to move together and compress the first return springs 101 through the movable plates 104, and at the moment, and the second return springs 106 are driven by the movable plates 104 to be compressed by the second return springs 107 and cannot be compressed by the first return springs 107.

In this embodiment, the upper surface of connecting plate 4 has been seted up and has been supplied the spread groove of connecting block 103 grafting, the draw-in groove that supplies fixture block 102 grafting has all been seted up to one side that two connecting blocks 103 are relative, the inside of connecting plate 4 has been seted up and has been supplied fly leaf 104 sliding connection's movable groove, the inside of connecting plate 4 has been seted up and has been supplied the pressing hole that presses the piece 105 to run through, and press the piece 105 through pressing hole and connecting plate 4 clearance fit, the inside of connecting plate 4 has been seted up and has been supplied reset plate 106 sliding connection's reset groove, the spout that supplies slide 108 sliding connection has been seted up to the inside of fly leaf 104, can loosen the external force of pressing the piece 105 and release the pressing spring after connecting block 103 gets into connecting plate 4 completely, make first reset spring 101 and second reset spring 107 all accessible elastic potential energy push back each part to normal position.

It should be noted that, the dismounting mechanism 1 connects the drill bit body 3 and the drill shank 5 together through the connection plate 4 by the cooperation of the first reset spring 101, the clamping block 102, the connection block 103, the movable plate 104, the pressing block 105, the reset plate 106, the second reset spring 107 and the sliding plate 108, and meanwhile, a worker can conveniently detach the drill bit body and replace damaged drill bits or replace the drill bits with different types at any time.

Referring to fig. 3, in order to prevent the pressing block 105 from being impacted to cause unstable connection of the drill bit, the anti-collision mechanism 2 in the embodiment includes two fixing blocks 203 fixed on the left and right sides of the connecting plate 4 respectively, the outer sides of the fixing blocks 203 are slidably connected with an anti-collision box 202, two limiting springs 201 are fixed in the fixing blocks 203, and limiting blocks 204 inserted into the anti-collision box 202 are fixed on opposite sides of the two adjacent limiting springs 201.

In this embodiment, the shape of the crash box 202 is a cuboid with a hollow interior and a missing side close to the connecting plate 4, the shape of the fixing block 203 is a cuboid with a hollow interior and missing left and right sides, the top wall and the bottom wall of the inner cavity of the crash box 202 are provided with limiting grooves for the limiting block 204 to be inserted, the shape of the opposite sides of the limiting block 204 on the upper side and the lower side is semicircular, and the crash box 202 moves while pushing the limiting block 204 to the inside of the fixing block 203 along the arc surface of the limiting block 204, and meanwhile, the limiting spring 201 is compressed through the limiting block 204.

It should be noted that, the anti-collision mechanism 2 is protected by the anti-collision box 202, so that the pressing block 105 is not impacted by other objects when not in use, and the impact filtering and the connection loosening or even the disconnection of the drill bit body 3 caused by the severe impact are avoided.

The working principle of the embodiment is as follows:

(1) When the drill bit body 3 is damaged and needs to be replaced, firstly, the anti-collision mechanism 2 is taken out to expose the pressing blocks 105 on the outer side, then, the pressing blocks 105 are pressed towards the middle simultaneously, the pressing blocks 105 drive the movable plate 104 to move together and compress the first reset spring 101 through the movable plate 104, the sliding plate 108 drives the movable plate 104 to move and simultaneously drives the reset plate 106 to compress the second reset spring 107, meanwhile, the clamping block 102 moves together along with the reset plate 106 and is gradually separated from the connecting block 103, when the clamping block 102 is completely separated from the connecting block 103, the connecting block 103 can be separated from the connecting plate 4 by pulling the drill bit body 3 upwards, the new connecting block 103 on the drill bit body 3 can be replaced after the pressing blocks 105 are loosened after the new connecting block 103 is inserted into the connecting plate 4, and the dismounting mechanism 1 connects the drill bit body 3 with the drill bit handle 5 through the cooperation of the first reset spring 101, the clamping block 102, the connecting block 103, the movable plate 104, the pressing blocks 105, the reset plate 106, the second reset spring 107 and the sliding plate 108, and simultaneously, workers can conveniently detach the damaged drill bits from the workers at any time to replace the damaged drill bits or replace the damaged drill bits with different types of drill bits.

(2) When the anti-collision mechanism 2 is taken out, the two anti-collision boxes 202 are pulled to the left and the right sides respectively, the anti-collision boxes 202 are gradually separated from the fixed block 203 in the moving process, the anti-collision boxes are pushed to the inside of the fixed block 203 along the arc-shaped surface of the limiting block 204, meanwhile, the limiting spring 201 is compressed through the limiting block 204, when the anti-collision boxes 202 are completely separated from the fixed block 203, the limiting block 204 is pushed back to the original position by the limiting spring 201, and the anti-collision mechanism 2 is prevented from being impacted by other objects when the anti-collision box 202 is not used by the pressing block 105, so that the anti-collision mechanism is prevented from being impacted, filtered and violently caused to loosen or even separate the connection of the drill bit body 3.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model 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 therein 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. Drill bit with burr prevention function, including drill bit body (3), its characterized in that: the anti-collision device comprises a drill bit body (3), and is characterized in that a dismounting mechanism (1) for fixing the drill bit body (3) is arranged on the lower surface of the drill bit body (3), a connecting plate (4) is arranged on the outer side of the dismounting mechanism (1), a drill shank (5) is fixed on the lower surface of the connecting plate (4), and anti-collision mechanisms (2) for blocking collision are arranged on the left side and the right side of the connecting plate (4);

The utility model provides a dismouting mechanism (1) is including fixing two connecting blocks (103) of drill bit body (3) lower surface and connecting block (103) the outside grafting has connecting plate (4), the inside of connecting plate (4) inner chamber is fixed with two first reset spring (101), left and right sides one side that first reset spring (101) carried on the back all is fixed with fly leaf (104) of sliding connection in connecting plate (4) inside, one side that first reset spring (101) was kept away from to fly leaf (104) is fixed with presses briquetting (105), one side that fly leaf (104) is close to first reset spring (101) is fixed with sliding connection in connecting plate (4) inside slide (108), one side that fly leaf (108) was kept away from is fixed with sliding connection in connecting plate (4) inside reset plate (106), one side that fly leaf (106) were kept away from to reset plate (108) is fixed with second reset spring (107) and second reset spring (107) is fixed with the inside of reset plate (106), reset plate (106) are kept away from one side that second reset spring (103) is fixed with the inside fixture block (102) of being located in the inside grafting of slide (102).

2. The drill bit with anti-burring function of claim 1, wherein: the upper surface of the connecting plate (4) is provided with a connecting groove for the connection of the connecting blocks (103), and two opposite sides of the connecting blocks (103) are provided with clamping grooves for the connection of the clamping blocks (102).

3. The drill bit with anti-burring function of claim 1, wherein: the inside of connecting plate (4) has been seted up and has been supplied fly leaf (104) sliding connection's movable groove, the inside of connecting plate (4) has been seted up and has been supplied pressing block (105) to run through the pressing hole, and pressing block (105) pass through pressing hole and connecting plate (4) clearance fit.

4. The drill bit with anti-burring function of claim 1, wherein: the inside of connecting plate (4) is offered and is supplied reset board (106) sliding connection's reset groove, the spout that supplies slide (108) sliding connection is offered to the inside of fly leaf (104).

5. The drill bit with anti-burring function of claim 1, wherein: the anti-collision mechanism (2) comprises two fixing blocks (203) which are respectively fixed on the left side and the right side of the connecting plate (4), an anti-collision box (202) is connected to the outer sides of the fixing blocks (203) in a sliding mode, two limiting springs (201) are fixed inside the fixing blocks (203), and limiting blocks (204) inserted into the anti-collision box (202) are fixed on the sides, opposite to each other, of the two adjacent limiting springs (201).

6. The drill bit with anti-burring function of claim 5, wherein: the anti-collision box (202) is in a cuboid shape with hollow inside and missing one side close to the connecting plate (4), and the fixing block (203) is in a cuboid shape with hollow inside and missing left and right sides.

7. The drill bit with anti-burring function of claim 5, wherein: limiting grooves for inserting limiting blocks (204) are formed in the top wall and the bottom wall of the inner cavity of the anti-collision box (202), and the shape of the opposite side of the limiting blocks (204) on the upper side and the lower side is semicircular.