CN105921630A - Assembling process of concentric drilling tool hole reaming sleeve assembly - Google Patents

Assembling process of concentric drilling tool hole reaming sleeve assembly Download PDF

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Publication number
CN105921630A
CN105921630A CN201610494533.9A CN201610494533A CN105921630A CN 105921630 A CN105921630 A CN 105921630A CN 201610494533 A CN201610494533 A CN 201610494533A CN 105921630 A CN105921630 A CN 105921630A
Authority
CN
China
Prior art keywords
reaming
shoe
set
reaming sleeve
drilling tool
Prior art date
Application number
CN201610494533.9A
Other languages
Chinese (zh)
Inventor
高亮洪
Original Assignee
长沙天和钻具机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 长沙天和钻具机械有限公司 filed Critical 长沙天和钻具机械有限公司
Priority to CN201610494533.9A priority Critical patent/CN105921630A/en
Publication of CN105921630A publication Critical patent/CN105921630A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046Connecting tubes to tube-like fittings

Abstract

The invention provides an assembling process of a concentric drilling tool hole reaming sleeve assembly. Firstly, a pipe shoe is machined and formed, margin is reserved in an inner hole of a hole reaming sleeve, and a connection part of the hole reaming sleeve is sleeved with a connection part of the pipe shoe; and then the pipe shoe and the hole reaming sleeve are heated together to the deformation temperature of the hole reaming sleeve, the pipe shoe and the hole reaming sleeve are then put in a mold, a punch penetrates the inner hole of the hole reaming sleeve under the effect of a pressing machine, the maximum radius of the punch is larger than radius of the inner hole of the hole reaming sleeve, the difference between the maximum radius of the punch and the radius of the inner hole of the hole reaming sleeve is matched with the amount of the portion, embedded in the pipe shoe, of the hole reaming sleeve, the inner hole of the hole reaming sleeve is expanded through the punch, the connection part of the hole reaming sleeve is expanded and embedded in the connection part of the pipe shoe at the same time, and the hole reaming sleeve assembly is obtained. The assembling process is easy to operate and small in mold loss, cost is saved, and the service life of the hole reaming sleeve assembly is prolonged.

Description

A kind of assembly technology of concentric drilling tool reaming grip assembly

Technical field

The present invention relates to the assembly technology of a kind of concentric drilling tool reaming grip assembly.

Background technology

Drilling tool is generally by forming with pipe, center bit, reaming set, shoe, carbide button etc. with one heart.With pipe exists Contacting with hole wall in drilling process, bear certain impact shock, pipe-following drilling can effectively prevent boring procedure Hole subsides, and improves deslagging efficiency simultaneously;Center bit is connected with impacter, transmission impulsive force and moment of torsion, Creep into brokenly rock groundwork for completing, air discharge duct carbide button on it, is distributed;Reaming set, it is furnished with conjunction Gold tooth, carries out reaming to hole and creeps into;Shoe, is connected with pipe by welding;Carbide button, enters rock stratum Row impact grinding.Wherein reaming set forms reaming grip assembly after embedding shoe.

Using by the technique held tightly inside outward, this assembly technology of existing concentric drilling tool reaming set assembly Operation principle be: before Zhuan Pei, machine-shaping is overlapped in reaming, the inwall of shoe arranges a tapering so that Reaming set can put into shoe, and then entirety is heated to uniform temperature, puts into mould, under press effect, By middle mold, shoe is held tightly, thus obtain reaming grip assembly.The advantage of this connected mode is processing letter Single, before assembling, reaming to be harnessed an animal to a cart molding, shoe cylindrical stays a little surplus, only need to process outside shoe after assembling Circle.But this reaming grip assembly is percent defective the highest (about about 35%), Er Qie great during assembling The portioned product in use life-span is the longest, and failure mode major part is that reaming set comes off with shoe, This illustrates that in the reaming set assembly that this kind of assembly technology obtains, reaming set embeds shoe very little, is not reaching to set Meter requirement, the reason producing this result is many: be first that the control of hot extrusion deformation amount is not in place, Cause assembling during occur product stuck in mould or assembling after reaming set assembly gap the biggest; Next to that the deformation of mould, during assembling repeatedly, increasing at middle mold closing in, cause reaming set group Fit gap is increasing.

Summary of the invention

It is an object of the invention to overcome the deficiencies in the prior art and defect to provide a kind of assembly technology operation letter Single, the consume to mould is little, cost-effective, improves the concentric drilling tool reaming set in reaming grip assembly service life The assembly technology of assembly.

To achieve these goals, the technical solution adopted in the present invention is:

The assembly technology of a kind of concentric drilling tool reaming grip assembly, first by shoe machine-shaping, by reaming set Hole made allowance, is sleeved on the connecting portion of shoe outside the connecting portion of reaming set, then with reaming, shoe is overlapped one Play heating, be heated to the deformation temperature of reaming set, then shoe and reaming set are put in mould, make at press Under with, punching pin is passed from reaming set endoporus, punching pin maximum radius bigger than the radius of reaming set endoporus and both Residual quantity and reaming set embed the amount of shoe and match, reaming is overlapped endoporus and is swollen by punching pin, and the set of reaming simultaneously is even The portion that connects expands the connecting portion embedding shoe, obtains reaming grip assembly.

The endoporus of described reaming set is provided with chamfering at punching pin upstream end.

The lower end of described reaming set is connected with mould by pad mould, and the diameter of bore of described pad mould is more maximum than punching pin The big 0.5mm of diameter.Being provided with a locating ring on the interior platform of described pad mould, described locating ring is big with what reaming was overlapped Little match.

Described reaming set, pad mould spray or are coated with releasing agent when mutually installing with mould.

Owing to using such scheme, the material heat treatment deformation of this technology utilization swells ratio from outside to inside from inside to outside Hold the principle being easier to realization tightly, by selecting the punching pin of different-diameter, embed such that it is able to control reaming set The amount of shoe so that the connecting portion that the connecting portion of shoe overlaps with reaming is connected more tight, ensures each simultaneously Reaming grip assembly reaming set embeds the concordance of the amount of shoe, it is ensured that stablizing of product, and this technological operation is simple, Consume to mould is little, cost-effective, and in process of production, percent defective is less than 1%, and the reaming obtained Grip assembly dimensionally stable, the process-cycle also shortens about 20%.Owing to shoe is more tight with reaming set assembling, Make produce between the two to interfere less, it is ensured that the life-span improves more than twice, it is thus possible to well reach The use requirement of client.

Accompanying drawing explanation

Fig. 1 is the schematic diagram before punching pin of the present invention extruding.

Fig. 2 is the schematic diagram after punching pin of the present invention extruding.

Detailed description of the invention

Below in conjunction with the accompanying drawings, specific implementation of the patent mode is further described.

As shown in Figure 1, 2, the assembly technology of a kind of concentric drilling tool reaming grip assembly, shoe 2 assembles front processing Molding, reaming is overlapped 3 endoporus made allowances, shoe 2 is placed on reaming set 3 and is heated to uniform temperature together above (concrete heating-up temperature is determined according to selected materials, and corresponding reaming set 3 the most suitable deformation temperatures, relevant temperature can Look into metal material Technology for Heating Processing), then shoe 2 is put in mould together with reaming set 3, reaming set 3 And pad mould 4 is set between mould 5, under press effect, overlaps 3 endoporus by 1 reaming of punching pin and swell, with Time reaming set 3 connecting portion expand and embed shoe, thus obtain reaming grip assembly.

The advantage of this assembly technology is the punching pin by selecting different-diameter, such that it is able to control reaming set Embed the amount of shoe so that the connecting portion that the connecting portion of shoe overlaps with reaming is connected more closely, so we Just can well control reaming set embed shoe number, furthermore this assembly technology is simple to operate, to mould Consume little, cost-effective.

On reaming set, 2x15 ° of angle is fallen in exit, thus reduces area when reaming set just contacts with punching pin, Pad mould endoporus is put little as far as possible, such as bigger 0.5mm than punching pin maximum gauge, uses releasing agent during assembling, The most substantially the problem solving punching pin strip;Overlap between 3 plus pad mould 4 at mould 5 and reaming, prepare more Several pad moulds, assembling terminates rear workpiece and pad mould bonding, reapposes pad mould, the most not after taking out together Influence whether the speed of assembling;A locating ring is placed, after putting the workpiece in locating ring at pad Mo Neitai Take locating ring away to assemble again, the most well ensure that the concentric of workpiece and press output shaft.

By repeatedly producing in enormous quantities, in process of production, the reaming grip assembly obtained by this assembly technology, Percent defective is less than 1%, and the reaming grip assembly dimensionally stable obtained, and the process-cycle also shortens about 20%.

Claims (6)

1. the assembly technology of a concentric drilling tool reaming grip assembly, it is characterised in that: first shoe is processed into Type, overlaps endoporus made allowance by reaming, and the connecting portion of shoe is sleeved on outside the connecting portion of reaming set, then will Shoe heats together with overlapping with reaming, is heated to the deformation temperature of reaming set, then shoe and reaming set are put into mould In tool, under press effect, being passed from reaming set endoporus by punching pin, punching pin maximum radius overlaps endoporus than reaming Radius big and both residual quantity match with the amount of reaming set embedding shoe, reaming is overlapped endoporus and is swollen by punching pin, The set connecting portion of reaming simultaneously expands the connecting portion embedding shoe, obtains reaming grip assembly.
The assembly technology of concentric drilling tool reaming grip assembly the most according to claim 1, it is characterised in that: The endoporus of described reaming set is provided with chamfering at punching pin upstream end.
The assembly technology of concentric drilling tool reaming grip assembly the most according to claim 2, it is characterised in that: The lower end of described reaming set is connected with mould by being provided with the pad mould of endoporus.
The assembly technology of concentric drilling tool reaming grip assembly the most according to claim 3, it is characterised in that: The diameter of bore 0.5mm bigger than punching pin maximum gauge of described pad mould.
The assembly technology of concentric drilling tool reaming grip assembly the most according to claim 3, it is characterised in that: Being provided with a locating ring on the interior platform of described pad mould, the size that described locating ring overlaps with reaming matches.
The assembly technology of concentric drilling tool reaming grip assembly the most according to claim 3, it is characterised in that: Described reaming set, pad mould spray or are coated with releasing agent when mutually installing with mould.
CN201610494533.9A 2016-06-29 2016-06-29 Assembling process of concentric drilling tool hole reaming sleeve assembly CN105921630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610494533.9A CN105921630A (en) 2016-06-29 2016-06-29 Assembling process of concentric drilling tool hole reaming sleeve assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610494533.9A CN105921630A (en) 2016-06-29 2016-06-29 Assembling process of concentric drilling tool hole reaming sleeve assembly

Publications (1)

Publication Number Publication Date
CN105921630A true CN105921630A (en) 2016-09-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610494533.9A CN105921630A (en) 2016-06-29 2016-06-29 Assembling process of concentric drilling tool hole reaming sleeve assembly

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CN (1) CN105921630A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6380930A (en) * 1986-09-22 1988-04-11 Kawasaki Steel Corp Pipe joint
JPS63318363A (en) * 1987-05-25 1988-12-27 Interatom Hollow shaft, transmission element of which is fixed by expanding working
CN1745928A (en) * 2005-10-15 2006-03-15 新兴铸管股份有限公司 Mechanical internal-expanding installation of steel plastic composite pressure pipe
CN1956809A (en) * 2004-03-24 2007-05-02 快速法兰公司 Method and apparatus for cold joining flanges and couplings elements to pipes
CN103170542A (en) * 2013-04-12 2013-06-26 柳州力通车用空调有限公司 Method for expanding pipe joint
CN103433395A (en) * 2013-09-03 2013-12-11 西安胜智航空科技有限公司 Expanding device for shape memory alloy pipe joint

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6380930A (en) * 1986-09-22 1988-04-11 Kawasaki Steel Corp Pipe joint
JPS63318363A (en) * 1987-05-25 1988-12-27 Interatom Hollow shaft, transmission element of which is fixed by expanding working
CN1956809A (en) * 2004-03-24 2007-05-02 快速法兰公司 Method and apparatus for cold joining flanges and couplings elements to pipes
US20110109082A1 (en) * 2004-03-24 2011-05-12 Quickflange, As Method and apparatus for cold joining flanges and coupling elements to pipes
CN1745928A (en) * 2005-10-15 2006-03-15 新兴铸管股份有限公司 Mechanical internal-expanding installation of steel plastic composite pressure pipe
CN103170542A (en) * 2013-04-12 2013-06-26 柳州力通车用空调有限公司 Method for expanding pipe joint
CN103433395A (en) * 2013-09-03 2013-12-11 西安胜智航空科技有限公司 Expanding device for shape memory alloy pipe joint

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李集仁: "《高级冲压、锻压模具工技术与实例》", 31 January 2005 *
肖龙: "《机械制造基础》", 31 August 2012 *

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Application publication date: 20160907

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