CN202555861U - Drill hole limiting device - Google Patents

Drill hole limiting device Download PDF

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Publication number
CN202555861U
CN202555861U CN2012201857634U CN201220185763U CN202555861U CN 202555861 U CN202555861 U CN 202555861U CN 2012201857634 U CN2012201857634 U CN 2012201857634U CN 201220185763 U CN201220185763 U CN 201220185763U CN 202555861 U CN202555861 U CN 202555861U
Authority
CN
China
Prior art keywords
limiting device
drill hole
head body
clamping head
drill
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN2012201857634U
Other languages
Chinese (zh)
Inventor
史玉锋
靳国芳
刘英丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xixia Intake & Exhaust Manifolds Co Ltd
Original Assignee
Xixia Intake & Exhaust Manifolds Co Ltd
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 Xixia Intake & Exhaust Manifolds Co Ltd filed Critical Xixia Intake & Exhaust Manifolds Co Ltd
Priority to CN2012201857634U priority Critical patent/CN202555861U/en
Application granted granted Critical
Publication of CN202555861U publication Critical patent/CN202555861U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a drill hole limiting device. The drill hole limiting device is provided with a clamping head body with a center through hole. An adjusting screw is arranged on the upper portion of the clamping head body, a limiting sleeve is arranged on the lower portion of the clamping head body, wherein the limiting sleeve is connected with the clamping head body through bearings in sleeved mode, and locking screws are arranged around the clamping head body. In the process of adjusting and cutting of a workpiece, transmission torque of a machine tool is stable and reliable, the drill hole limiting device rotates evenly, vibration of a cutter is totally avoided, and rigidity and intensity of the machine tool and the drill hole limiting device can totally meet requirements of processing process of the workpiece. By means of the drill hole limiting device, an expanding drill is fast to cut, swarf is smooth to discharge, processing depth and surface roughness of a hole can meet requirements, in the process of using, quality of products is stable, and a qualified rate and production efficiency of the products can be improved more than 20 percent. The drill hole limiting device can be utilized by matching with a common drill carriage and applies to processing of drilling, expanding a counter bore and tapping of the workpiece which is high in demands of depth dimensional tolerance of a bore.

Description

A kind of boring stopping means
Technical field
The utility model relates to the clamping tool for machine work technical field, relates in particular to a kind of boring stopping means.
Background technology
Discharge manifold is one of strength member of production domesticization; Output is wide in variety greatly; Connecting hole on the oblique flange face of this Engine Series blast pipe is connected with booster; Mostly connecting hole is counterbore, and size tolerance requirements is than higher, and especially the degree of depth 20 ± 0.07 is all very big with φ 11+0.15+0.05 difficulty of processing.In process, depth dimensions is overproof often, can not satisfy drawing and technological requirement; On drill carriage, utilize quick chuck to change cutter, accomplish boring, reaming and tapping processing successively.On the reaming depth dimensions, submit to product that 20% in various degree overproof all arranged at every turn, have a strong impact on satisfying of main engine plants' installation demand, this working procedure processing becomes the bottleneck of accomplishing production task.Cause the reason of the problems referred to above to be that there is drawback in the cornish bit chuck that uses: a, cornish bit length size can not be adjusted, and all will proofread the length size again after each tool sharpening, use inconvenient; B, operation inadvertent will cause the scuffing machined surface, make converted products not meet technological requirement; C, the location inaccurate, make processing dimension overproof.In process, can't utilize the blast pipe flange face to control working depth as the fine positioning benchmark in addition, have machining benchmark and measuring basis error, make processing depth size unstable, production efficiency is low, can not satisfy the requirement of main engine plants.Can spacing hole drilling and reaming device, efficiently solve the bottleneck problem of counterbore processing, can be applicable to the control of drilling depth simultaneously, and be used widely.
The utility model content
The purpose of the utility model is to overcome defective of the prior art, and a kind of machining accuracy that can guarantee connecting hole on the oblique flange face of the exhaust pipe of engine reliably is provided, and production efficiency is high, uses boring stopping means easy to adjust.
The technical scheme of taking for the purpose that realizes the utility model is: a kind of boring stopping means; Collet body with a band central through hole; The top of this collet body is provided with adjustment screw; The bottom is provided with stop collar, and said stop collar is connected with the collet body suit through bearing, and all sides of collet body are provided with lock-screw.
Said bearing comprises upper bearing (metal) and lower bearing.
Said upper bearing (metal) adopts single thrust bearing.
Said lower bearing adopts ball bearing.
Said adjustment screw adopts sunk screw.
The upper and lower position of said upper bearing (metal) is provided with circlip.
The quantity of said lock-screw is 4~8, along collet body double laying up and down, is symmetrical set along all sides of collet body.
Said stop collar adopts the brass product.
The boring stopping means of the utility model; In the debugging cutting of workpiece, it is steadily reliable that lathe transmits moment of torsion, and this installs balance rotating; The vibrations of cutter be can avoid fully, rigidity and the processing technology requirement that intensity satisfies workpiece fully of lathe and boring stopping means made.The reamer cutting is brisk, and smear metal is discharged smooth, and the working depth in hole and surface roughness all can reach requirement, and constant product quality in using, and product percent of pass and production efficiency all improve more than 20%.This device can with the supporting use of common drill carriage, be applicable to the higher Workpiece boring of hole depth size tolerance requirements, expand counterbore, the processing of tapping.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further explanation:
Fig. 1 is the structural representation of the utility model.
The specific embodiment
As shown in Figure 1; The boring stopping means of the utility model has a collet body 1 of being with central through hole, and adjustment screw 2 is equipped with through screw thread in the central through hole top of this collet body 1; Be used for the adjustment of straight shank drill 7 upper-lower positions; This adjustment screw 2 adopts sunk screw, and adjustment screw 2 is sunk in the said central through hole, avoids the interference with drill press spindle quick chuck centre bore.The bottom of said collet body 1 is provided with stop collar 6, is used for the spacing of drilling depth, and this stop collar adopts the brass product, can avoid the friction of surface of the work to scratch effectively.Said stop collar 6 is connected with collet body 1 suit through bearing, and stop collar 6 and collet body 1 can be rotated relatively freely.Said bearing comprises upper bearing (metal) 9 and lower bearing 8, and wherein upper bearing (metal) 9 adopts single thrust bearing, can prevent that stop collar 6 from axially moving up.Said lower bearing 8 adopts ball bearing, is used for setting upright of stop collar 6.The upper and lower position of said upper bearing (metal) 9 is provided with circlip 4,5, is used for the fixing of upper bearing (metal) 9 axial locations.Collet body 1 all sides are provided with lock-screw 3, are used for being fixedly clamped of straight shank drill 7, and the quantity of this lock-screw 3 is 4~8, along collet body double laying about in the of 1, are symmetrical set along collet body 1 all sides, so that guarantee the axiality of drill bit 7 and said collet body 1.
The boring stopping means of the utility model in its radial drill main shaft quick chuck accessory of packing into, transmits moment of torsion by radial drill in use.Straight shank drill 7 reaches set depth at the entering thread Pilot hole, and the lower surface of then said stop collar 6 contacts with the processing datum of workpiece, and straight shank drill 7 receives the restriction of stop collar 6 no longer to carry out axial feed, reaches the purpose of control working depth size.The frictional force that this moment, stop collar 6 end faces received the workpiece machined surface stops operating, and can play pinpoint effect.Upper bearing (metal) 9, lower bearing 8 begin rotation when receiving axial thrust, and stop collar 6 transfixions, and stop collar 6 is the brass product, thereby can never scratch the workpiece flange surface, can guarantee the working depth dimensional accuracy, can enhance productivity again.This device can with the supporting use of common drill carriage, be applicable to the higher Workpiece boring of hole depth size tolerance requirements, expand counterbore, the processing of tapping.

Claims (8)

1. boring stopping means; It is characterized in that: it has the collet body of a band central through hole, and the top of this collet body is provided with adjustment screw, and the bottom is provided with stop collar; Said stop collar is connected with the collet body suit through bearing, and all sides of collet body are provided with lock-screw.
2. boring stopping means as claimed in claim 1 is characterized in that: said bearing comprises upper bearing (metal) and lower bearing.
3. boring stopping means as claimed in claim 2 is characterized in that: said upper bearing (metal) adopts single thrust bearing.
4. boring stopping means as claimed in claim 2 is characterized in that: said lower bearing adopts ball bearing.
5. boring stopping means as claimed in claim 1 is characterized in that: said adjustment screw adopts sunk screw.
6. boring stopping means as claimed in claim 2 is characterized in that: the upper and lower position of said upper bearing (metal) is provided with circlip.
7. boring stopping means as claimed in claim 1 is characterized in that: the quantity of said lock-screw is 4~8, along collet body double laying up and down, is symmetrical set along all sides of collet body.
8. boring stopping means as claimed in claim 1 is characterized in that: said stop collar adopts the brass product.
CN2012201857634U 2012-04-27 2012-04-27 Drill hole limiting device Expired - Fee Related CN202555861U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201857634U CN202555861U (en) 2012-04-27 2012-04-27 Drill hole limiting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201857634U CN202555861U (en) 2012-04-27 2012-04-27 Drill hole limiting device

Publications (1)

Publication Number Publication Date
CN202555861U true CN202555861U (en) 2012-11-28

Family

ID=47205563

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201857634U Expired - Fee Related CN202555861U (en) 2012-04-27 2012-04-27 Drill hole limiting device

Country Status (1)

Country Link
CN (1) CN202555861U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128514A (en) * 2013-03-01 2013-06-05 吴敬 Machining method and tool for large-modulus large-diameter small-width gears
CN103317164A (en) * 2013-06-04 2013-09-25 西峡县内燃机进排气管有限责任公司 Non-machined plane drilling chamfering machine for numerical control machine tool
CN108247780A (en) * 2017-12-28 2018-07-06 浙江浪潮精密机械有限公司 A kind of drilling depth positions adjustable counter bore bit and drilling depth adjusting method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128514A (en) * 2013-03-01 2013-06-05 吴敬 Machining method and tool for large-modulus large-diameter small-width gears
CN103128514B (en) * 2013-03-01 2015-12-09 沈阳工学院 The processing method of the little width gear of large modulus major diameter and machining tool
CN103317164A (en) * 2013-06-04 2013-09-25 西峡县内燃机进排气管有限责任公司 Non-machined plane drilling chamfering machine for numerical control machine tool
CN108247780A (en) * 2017-12-28 2018-07-06 浙江浪潮精密机械有限公司 A kind of drilling depth positions adjustable counter bore bit and drilling depth adjusting method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121128

Termination date: 20150427

EXPY Termination of patent right or utility model