CN204869141U

CN204869141U - Drilling specific drill bit

Info

Publication number: CN204869141U
Application number: CN201520370353.0U
Authority: CN
Inventors: 彭包军
Original assignee: Qidong Lvsi Technology Innovation Center Co Ltd
Current assignee: Qidong Lvsi Technology Innovation Center Co Ltd
Priority date: 2015-06-02
Filing date: 2015-06-02
Publication date: 2015-12-16
Anticipated expiration: 2025-06-02

Abstract

The utility model discloses a drilling specific drill bit, including drill bit and drillstock, drill bit and drillstock fixed connection, drill bit include degree of depth stop device and set up the drill tip in degree of depth stop device, be equipped with spiral chip groove on the drill tip, the drillstock is whole to be set up to cylinder type drillstock, and this cylinder type drillstock begins to steadily decrease in proper order to drillstock tail end diameter from the other end of keeping away from the drill bit, wholly forms round platform type drillstock, degree of depth stop device overall structure does: degree of depth stop device mainly is rugosity limit structure, and the drill tip uses degree of depth stop device center pin as the axis, runs through whole drill bit. Its advantage lies in: the utility model discloses a drilling specific drill bit, including degree of depth stop device with set up the drill tip in degree of depth stop device, be equipped with spiral chip groove on the drill tip, the helical angle of chip groove be 15-30, effective chip removal reduces the probability that the product was submitted an expense account, and degree of depth stop device's setting, can effectively confirm required drilling depth, can not wear the improvement labor efficiency and the work degree of accuracy with timber is thorough.

Description

A kind of boring target drill

Technical field

The utility model relates to a kind of boring target drill, belongs to machining tool field.

Background technology

Drill bit (Drills) goes out through hole or blind hole in order to drilling on solid material, and can to the cutter of existing hole reaming.Conventional drill bit mainly contains fluted drill, chit drill, centre drill, depth drill and cylindrical drill.

In architectural engineering, electric drill is a kind of common tool, and user can be operated by electric power motor, impels drill bit fast rotational, punches, and carries out other operations so that follow-up.In this process, hole depth is an important parameter, specifically need regulate according to real needs.

Drill bit is the cutter that boring is commonly used, drill bit is when holing, mainly through cutter head top, workpiece is cut, by chip area, chip is discharged, if chip can not be discharged very smoothly, the hole inwall bored then can be caused to occur cut, workpiece is even caused to become waste product, during drill bit design, the helical angle of chip area directly affects the speed of its chip removal, the larger chip removal of helical angle is more smooth and easy, but, chip also can be larger to the wearing and tearing of drill bit, helical angle is less, chip removal can be slow, relatively little to bit wear, existing drill bit normally arranges three chip areas, chip area is narrow, so helical angle is usually smaller, chip removal is slow, there is cut in easy causing hole inwall.

What just need some to fix sometimes during timber boring drills through the degree of depth, therefore needs a kind of structure simple, drills through degree of depth convenience and wield instrument, meets the demand in contemporary work.

Utility model content

The purpose of this utility model is to provide a kind of boring target drill, can accomplish effective chip removal, reduce the probability of product reimbursement, and the setting of depth limiting device, can effectively determine required drilling depth, can not wear thorough for timber, raise labour efficiency and the work degree of accuracy.

The technical solution adopted in the utility model is: a kind of boring target drill, comprise drill bit and drillstock, drill bit is fixedly connected with drillstock, described drill bit comprises depth limiting device and is arranged at the apex point in depth limiting device, described apex point is provided with helical form chip area, and the helical angle of described chip area is 15 ° ~ 30 °;

Described drillstock whole installation is column type drillstock, and this column type drillstock successively decreases successively to drillstock tail end diameter from the other end away from drill bit, overall formation circular platform type drillstock, described depth limiting device overall structure is: its innovative point is: described depth limiting device is mainly degree of depth position limiting structure, apex point for axis, runs through whole drill bit with depth limiting device central shaft.

On this basis, described degree of depth position limiting structure is: comprise the limited mouth being provided with fixed thickness, the length 8 ~ 10cm less of the length of apex point of this limited mouth.

On this basis, the opening part of described limited mouth is also provided with postive stop baffle, and this postive stop baffle perpendicular to apex point, and is fixedly connected on the position of the opening part 2 ~ 5cm of distance limited mouth.

On this basis, described depth limiting device is also provided with deep spiral shape chip area, the helical angle of described deep spiral shape chip area is 30 ~ 45 °.

The beneficial effects of the utility model are as follows:

(1) boring target drill of the present utility model, comprise depth limiting device and be arranged at the apex point in depth limiting device, apex point is provided with helical form chip area, the helical angle of chip area is 15 ~ 30 °, can accomplish effective chip removal, reduces the probability of product reimbursement, and the setting of depth limiting device, can effectively determine required drilling depth, can not wear thorough for timber, raise labour efficiency and the work degree of accuracy;

(2) boring target drill of the present utility model, degree of depth position limiting structure is: comprise the limited mouth being provided with fixed thickness, length 8 ~ the 10cm less of the length of apex point of this limited mouth, the opening part of limited mouth is also provided with postive stop baffle, the wood chip produced when effectively can isolate boring that arranges of baffle plate enters on drill body, this postive stop baffle is perpendicular to apex point, and be fixedly connected on the position of the opening part 2 ~ 5cm of distance limited mouth, can both ensure to drill through the required degree of depth, can ensure that again the threaded bore of apex point drills through completely, structure is simple, easy to use.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.

Fig. 1 is the utility model boring target drill overall structure schematic diagram.

Detailed description of the invention

The utility model relates to a kind of boring target drill, as shown in Figure 1: comprise drill bit 1 and drillstock 2, drill bit 1 is fixedly connected with drillstock 2, drill bit 1 comprises depth limiting device and is arranged at the apex point 3 in depth limiting device, apex point 3 is provided with helical form chip area 31, and the helical angle of chip area 31 is 15 ° ~ 30 °; Drillstock 2 whole installation is column type drillstock, and this column type drillstock successively decreases successively to drillstock 2 tail end diameter from the other end away from drill bit 1, overall formation circular platform type drillstock, as shown in Figure 1: depth limiting device overall structure is: depth limiting device is mainly degree of depth position limiting structure 13, apex point 3 for axis, runs through whole drill bit 1 with depth limiting device central shaft.

Degree of depth position limiting structure is: comprise the limited mouth 11 being provided with fixed thickness, length 8 ~ the 10cm less of the length of apex point 3 of this limited mouth 11, the opening part of limited mouth 11 is also provided with postive stop baffle 12, this postive stop baffle 12 is perpendicular to apex point 3, and be fixedly connected on the position of the opening part 2 ~ 5cm of distance limited mouth 11, degree of depth position limiting structure 13 is also provided with deep spiral shape chip area 14, the helical angle of deep spiral shape chip area 14 is 30 ° ~ 45 °.The boring target drill of utility model can accomplish effective chip removal, reduces the probability of product reimbursement, and the setting of depth limiting device, can effectively determine required drilling depth, can not wear thorough for timber, raise labour efficiency and the work degree of accuracy.The wood chip produced when effectively can isolate boring that arranges of baffle plate enters on drill body, this postive stop baffle is perpendicular to apex point, and be fixedly connected on the position of the opening part 2 ~ 5cm of distance limited mouth, can both ensure to drill through the required degree of depth, can ensure that again the threaded bore of apex point drills through completely, structure is simple, easy to use.

The above is preferred embodiment of the present utility model, can not limit the interest field of the utility model with this.It should be pointed out that for those skilled in the art, the technical solution of the utility model is modified or equivalent replacement, do not depart from protection domain of the present utility model.

Claims

1. a boring target drill, comprise drill bit and drillstock, drill bit is fixedly connected with drillstock, it is characterized in that: described drill bit comprises depth limiting device and is arranged at the apex point in depth limiting device, described apex point is provided with helical form chip area, and the helical angle of described chip area is 15 ° ~ 30 °;

Described drillstock whole installation is column type drillstock, and this column type drillstock successively decreases successively to drillstock tail end diameter from the other end away from drill bit, overall formation circular platform type drillstock, described depth limiting device overall structure is: it is characterized in that: described depth limiting device is mainly rugosity position limiting structure, apex point for axis, runs through whole drill bit with depth limiting device central shaft.

2. boring target drill according to claim 1, is characterized in that: described rugosity position limiting structure is: comprise the limited mouth being provided with fixed thickness, the length 8 ~ 10cm less of the length of apex point of this limited mouth.

3. boring target drill according to claim 2, is characterized in that: the opening part of described limited mouth is also provided with postive stop baffle, and this postive stop baffle perpendicular to apex point, and is fixedly connected on the position of the opening part 2 ~ 5cm of distance limited mouth.

4. boring target drill according to claim 1, is characterized in that: described depth limiting device is also provided with deep spiral shape chip area, and the helical angle of described deep spiral shape chip area is 30 ° ~ 45 °.