CN214290999U

CN214290999U - Alloy step drill with straight groove

Info

Publication number: CN214290999U
Application number: CN202022792622.6U
Authority: CN
Inventors: 蒋明明
Original assignee: Changzhou Chuangjin Tool Co ltd
Current assignee: Changzhou Chuangjin Tool Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-28
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses an alloy step bores with straight flute, including installation head, spliced pole, connecting plate, U type frame, fixed block, spring one, flexible outer pole, flexible interior pole, spring two, drillstock, fastening bolt one, fastening bolt two, drill bit, cutting edge, straight flute and support the clamp plate. The utility model has the advantages that: the drill bit, the alloy material that cutting edge and drillstock all adopted makes, be convenient for improve the hardness that this alloy bored, thereby improve life, the both sides of drillstock are provided with a fastening bolt matched with recess, and be provided with the slipmat in the recess, be convenient for carry on spacingly to the drillstock, improve the compactness that drillstock and U type frame are connected, the downside that supports the clamp plate is provided with the rubber pad, be convenient for protect the drillstock, the straight flute is provided with two, be convenient for clear up the sweeps, prevent that the sweeps from piling up and causing drilling error grow, the mounting groove has been seted up to the inside of installation head, and be provided with the internal thread in the mounting groove, be convenient for install this drill bit on the lathe.

Description

Alloy step drill with straight groove

Technical Field

The utility model relates to an alloy step bores specifically to an alloy step bores with straight flute belongs to drill bit technical field.

Background

The step drill is also called a step drill or a pagoda drill and is mainly used for drilling and processing thin steel plates within 3mm, one drill can replace a plurality of drills to be used, holes with different diameters can be processed according to needs, large holes can be processed at one time, the drill does not need to be replaced, positioning holes do not need to be drilled, and the like, and the step drill can be divided into a straight groove, a spiral groove and an arc groove according to the groove shape of a product; the drill can be divided into single-edge, double-edge, three-edge, four-edge and multi-edge step drills according to the number of edges of the product; the step drill is normally in national standard, most of the step drill is in daily industrial use and is customized to be non-standard, and the step drill can be produced by drawing provided by a manufacturer for producing the step drill.

Step that sells on the existing market bores manifold, however it still has some problems in the in-service use process, and one of them, current step bore the straight flute that does not have the UNICOM mostly, the piece that can't timely clear out the production in carrying out drilling work can influence the working progress, and its two, current step bore mostly do not have the fixed structure of centre gripping, in the clamping device is advanced to the unable timely stable centre gripping of installation when fixed, the problem of landing easily takes place.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an alloy step bores with straight flute for solving above-mentioned problem just.

The utility model discloses a following technical scheme realizes above-mentioned purpose: an alloy step drill with a straight groove comprises an installing head, a connecting column, a connecting plate, a U-shaped frame, a fixing block, a first spring, a telescopic outer rod, a telescopic inner rod, a second spring, a drill handle, a first fastening bolt, a second fastening bolt, a drill bit, a cutting edge, a straight groove and a pressing plate; the device comprises a main structure of the device, wherein the mounting head, a drill handle and a drill bit form the main structure of the device, a connecting column is fixedly connected to the lower side of the mounting head, a connecting plate is fixedly connected to the lower end of the connecting column, a U-shaped frame is fixedly mounted to the lower side of the connecting plate, a fixing block is fixedly connected to the inner top surface of the U-shaped frame, a telescopic inner rod fixedly connected to the inner top surface of the U-shaped frame is mounted to each of two sides of the fixing block, a telescopic outer rod is arranged at the lower end of the telescopic inner rod, a through groove is formed in the telescopic outer rod, a spring II is fixedly connected to the inside of the through groove, a pressing plate is fixedly connected to the lower sides of the two telescopic outer rods, a spring I is arranged between the pressing plate and the fixing block, threaded holes are formed in two side walls of the U-shaped frame, a fastening bolt I is connected to the threaded holes in a matched mode, the U-shaped frame is fixedly connected with the drill handle through the fastening bolt I, the lower end of the drill handle is fixedly connected with the drill bit, and a plurality of trapezoidal cutting edges are arranged on the drill bit, and a straight groove is arranged on the drill bit, and the connecting plate is fixedly connected with the drill bit through a second fastening bolt.

Preferably, in order to improve the hardness of the alloy drill and further prolong the service life of the alloy drill, the drill bit, the cutting edge and the drill handle are made of alloy materials, so that the hardness of the alloy drill is improved.

Preferably, in order to facilitate the limiting of the drill handle and improve the connection tightness of the drill handle and the U-shaped frame, grooves matched with the fastening bolts are arranged on two sides of the drill handle, and anti-slip pads are arranged in the grooves.

Preferably, in order to facilitate the cleaning of the scraps, the scraps are prevented from being accumulated to cause the drilling error to become large, and the straight grooves are provided with two straight grooves.

Preferably, in order to protect the drill shank, a rubber pad is arranged on the lower side of the pressing plate.

Preferably, in order to facilitate the installation of the drill bit on the machine tool, a mounting groove is formed in the mounting head, and an internal thread is arranged in the mounting groove.

The utility model has the advantages that: this alloy step bores with straight flute design is reasonable, the drill bit, the alloy material that cutting edge and drillstock all adopted makes, be convenient for improve the hardness that this alloy bored, thereby improve life, the both sides of drillstock are provided with the recess with a fastening bolt matched with, and be provided with the slipmat in the recess, be convenient for carry on spacingly to the drillstock, improve the compactness that drillstock and U type frame are connected, the downside that supports the clamp plate is provided with the rubber pad, be convenient for protect the drillstock, the straight flute is provided with two, be convenient for clear up the sweeps, prevent that the sweeps from piling up and causing drilling error grow, the mounting groove has been seted up to the inside of installation head, and be provided with the internal thread in the mounting groove, be convenient for install this drill bit on the lathe.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the step drill of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1. the device comprises a mounting head, 2, connecting columns, 3, a connecting plate, 4, a U-shaped frame, 5, a fixing block, 6, first springs, 7, a telescopic outer rod, 8, a telescopic inner rod, 9, second springs, 10, a drill handle, 11, first fastening bolts, 12, second fastening bolts, 13, a drill bit, 14, a cutting edge, 15, straight grooves, 16 and a pressing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, an alloy step drill with a straight flute includes an installation head 1, a connection column 2, a connection plate 3, a U-shaped frame 4, a fixing block 5, a first spring 6, a telescopic outer rod 7, a telescopic inner rod 8, a second spring 9, a drill handle 10, a first fastening bolt 11, a second fastening bolt 12, a drill bit 13, a cutting edge 14, a straight flute 15 and a pressing plate 16; the device comprises a main body structure of the device, wherein the mounting head 1, a drill handle 10 and a drill bit 13 form the main body structure of the device, a connecting column 2 is fixedly connected to the lower side of the mounting head 1, a connecting plate 3 is fixedly connected to the lower end of the connecting column 2, a U-shaped frame 4 is fixedly mounted to the lower side of the connecting plate 3, a fixing block 5 is fixedly connected to the inner top surface of the U-shaped frame 4, telescopic inner rods 8 fixedly connected to the inner top surface of the U-shaped frame 4 are mounted to two sides of the fixing block 5, telescopic outer rods 7 are arranged at the lower end of the telescopic inner rods 8, through grooves are formed in the telescopic outer rods 7, springs 9 are fixedly connected to the inside of the through grooves, pressing plates 16 are fixedly connected to the lower sides of the two telescopic outer rods 7, springs 6 are arranged between the pressing plates 16 and the fixing block 5, threaded holes are formed in two side walls of the U-shaped frame 4, fastening bolts 11 are cooperatively connected to the threaded holes, and the drill handle 10 is fixedly connected to the U-shaped frame 4 through the fastening bolts 11, the drill bit 13 is fixedly connected to the lower end of the drill shank 10, a plurality of trapezoidal cutting edges 14 are arranged on the drill bit 13, a straight groove 15 is formed in the drill bit 13, and the connecting plate 3 is fixedly connected with the drill bit 13 through a second fastening bolt 12.

The alloy material that drill bit 13, cutting edge 14 and drillstock 10 all adopted makes, is convenient for improve the hardness that this alloy bored to improve life, the both sides of drillstock 10 are provided with a fastening bolt 11 matched with recess, and are provided with the slipmat in the recess, are convenient for carry on spacingly to drillstock 10, improve the compactness that drillstock 10 and U type frame 4 are connected, the downside that supports clamp plate 16 is provided with the rubber pad, is convenient for protect drillstock 10, straight flute 15 is provided with two, is convenient for clear up the sweeps, prevents that the sweeps from piling up and causing the drilling error grow, the mounting groove has been seted up to the inside of installation head 1, and is provided with the internal thread in the mounting groove, is convenient for install this drill bit on the lathe.

The working principle is as follows: when using this alloy step with straight flute to bore, at first with this step brill equipment, at first slowly put into U type frame 4 with drillstock 10, at the in-process of placing, through the mutual cooperation between spring 6, flexible outer pole 7, flexible inner pole 8, the spring two 9, play certain buffering guard action to drillstock 10, then be in the same place drillstock 10 and U type frame 4 rigid coupling through fastening bolt 11, after fixed, reuse fastening bolt two 12 is fixed connecting plate 3 and drill bit 13, thereby guarantee the fastening nature of connection, prevent that the drill bit from droing and taking place danger in the use, it is safer to use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an alloy step bores with straight flute which characterized in that: the device comprises an installing head (1), a connecting column (2), a connecting plate (3), a U-shaped frame (4), a fixing block (5), a first spring (6), a telescopic outer rod (7), a telescopic inner rod (8), a second spring (9), a drill handle (10), a first fastening bolt (11), a second fastening bolt (12), a drill bit (13), a cutting edge (14), a straight groove (15) and a pressing plate (16); the alloy step drill is characterized in that the mounting head (1), the drill handle (10) and the drill bit (13) form a main structure of the alloy step drill, a connecting column (2) is fixedly connected to the lower side of the mounting head (1), a connecting plate (3) is fixedly connected to the lower end of the connecting column (2), a U-shaped frame (4) is fixedly mounted to the lower side of the connecting plate (3), a fixed block (5) is fixedly connected to the inner top surface of the U-shaped frame (4), a telescopic inner rod (8) fixedly connected to the inner top surface of the U-shaped frame (4) is mounted to the two sides of the fixed block (5), a telescopic outer rod (7) is arranged at the lower end of the telescopic inner rod (8), a through groove is formed in the telescopic outer rod (7), a spring II (9) is fixedly connected to the inside of the through groove, a pressing plate (16) is fixedly connected to the lower side of the telescopic outer rod (7), a spring I (6) is arranged between the pressing plate (16) and the fixed block (5), be provided with the screw hole on the both sides wall of U type frame (4), threaded hole fit in is connected with fastening bolt (11), U type frame (4) have drillstock (10) through fastening bolt (11) rigid coupling, the lower extreme rigid coupling of drillstock (10) has drill bit (13), be provided with a plurality of trapezoidal cutting edges (14) on drill bit (13), and be provided with straight flute (15) on drill bit (13), connecting plate (3) are through fastening bolt two (12) and drill bit (13) fixed connection.

2. The alloy step drill with the straight groove of claim 1, wherein: the drill bit (13), the cutting edge (14) and the drill handle (10) are all made of alloy materials.

3. The alloy step drill with the straight groove of claim 1, wherein: grooves matched with the fastening bolts I (11) are formed in the two sides of the drill handle (10), and anti-slip pads are arranged in the grooves.

4. The alloy step drill with the straight groove of claim 1, wherein: and a rubber pad is arranged on the lower side of the pressing plate (16).

5. The alloy step drill with the straight groove of claim 1, wherein: two straight grooves (15) are arranged.

6. The alloy step drill with the straight groove of claim 1, wherein: the mounting head (1) is internally provided with a mounting groove, and an internal thread is arranged in the mounting groove.