CN203471091U - High precision spindle extended hole internal thread machining tool - Google Patents

High precision spindle extended hole internal thread machining tool Download PDF

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Publication number
CN203471091U
CN203471091U CN201320619254.2U CN201320619254U CN203471091U CN 203471091 U CN203471091 U CN 203471091U CN 201320619254 U CN201320619254 U CN 201320619254U CN 203471091 U CN203471091 U CN 203471091U
Authority
CN
China
Prior art keywords
taper
extension bar
cylindrical
internal thread
precision
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
CN201320619254.2U
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Chinese (zh)
Inventor
程慧杰
朱继生
秦鹏
季红丽
马德勇
葛慧颖
张启义
王凤霞
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.)
SHANDONG BOTE PRECISION INDUSTRIAL Co Ltd
Original Assignee
SHANDONG BOTE PRECISION INDUSTRIAL 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 SHANDONG BOTE PRECISION INDUSTRIAL Co Ltd filed Critical SHANDONG BOTE PRECISION INDUSTRIAL Co Ltd
Priority to CN201320619254.2U priority Critical patent/CN203471091U/en
Application granted granted Critical
Publication of CN203471091U publication Critical patent/CN203471091U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a high precision spindle extended hole internal thread machining tool, and belongs to the technical field of machining. According to the technical scheme, the high precision spindle extended hole internal thread machining tool is characterized by comprising an extension bar and a taper sleeve fixedly connected with a taper hole in one end of a spindle in an embedded mode, the extension bar is cylindrical, one end of the extension bar is provided with an inner hole matched with the outer cycle of a taper handle, and the other end of extension bar is provided with an edge-shaped handle which is matched with a machine tool tailstock. The taper sleeve is provided with a taper outer circle and a straight hole communicating the two ends of the taper sleeve, the taper outer circle is in close fit with the taper hole, and the straight hole is in precision sliding fit with the outer circle of the extension bar. The high precision spindle extended hole internal thread machining tool has the advantages of being simple in structure, low in cost, easy to operate and high in machining accuracy, and improving working efficiency.

Description

A kind of high-precision main shaft elongated hole internal thread processing tool
Technical field
The utility model relates to Machining Technology field, is specifically related to a kind of high-precision main shaft elongated hole internal thread processing tool.
Background technology
" tapping " claims again " synchro-feed tapping ", and rigid tapping circulation is by electric main shaft rotation and feeding synchronization, to mate specific thread pitch needs.Because the feeding in hole is synchronized, therefore say in theory the screw tap that can not adopt with any tension force, STRESS VARIATION.
But the problem existing in actual production is that lathe cannot and can be worked into main shaft elongated hole the screw thread of certain depth with the specific screw tap pitch exact matching using.Between the screw thread of processing on lathe and screw tap actual pitch, always exist subtle difference and main shaft elongated hole internal thread to produce to beat overproof.Address this problem is at present to adopt welding to lengthen taper shank and be arranged on the general tailstock directly to bore and attack internal thread, adopt the internal thread of the method processing to beat mostly in 0.05-0.10mm, although solved machining spindle elongated hole depths screw thread, but can be seriously overproof, need repeatedly reprocess, along silk, qualification rate is extremely low, has greatly affected production efficiency and product quality.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of frock that improves main shaft elongated hole internal thread machining accuracy, the degree of depth.
Invention thought of the present invention is: a kind of high-precision main shaft elongated hole internal thread processing tool is provided, described frock comprise extension bar and with the chimeric fixing tapered sleeve of taper hole of main shaft one end, described extension bar is cylindric, its one end arranges the endoporus with taper shank cylindrical match grinding, the other end arranges the rib shape handle identical with tailstock tool, described rib shape handle is arranged on tailstock tool, keeps the direction of feed of screw tap and the axis direction of main shaft consistent; Described tapered sleeve is set to the straight hole at taper cylindrical and its two ends of UNICOM, and described taper cylindrical and taper hole closely cooperate, and described straight hole and extension bar cylindrical precision are slidably matched.When screw tap is when direction of feed operates, screw tap is close to main shaft gradually, when described screw tap reach can make tapered sleeve and taper hole chimeric fixedly time, cause main shaft one end is now arranged on scroll chuck, in the middle of it, by centre frame, embrace its cylindrical place, now main shaft, workpiece to be machined and screw tap are all relatively stable, so just complete tapping process.
A kind of high-precision main shaft elongated hole internal thread processing tool, it is characterized in that, described frock comprise extension bar and with the chimeric fixing tapered sleeve of taper hole of main shaft one end, described extension bar is cylindric, its one end arranges the endoporus coordinating with taper shank cylindrical, the rib shape handle that other end setting and tailstock tool are identical; Described tapered sleeve is set to the straight hole at taper cylindrical and its two ends of UNICOM, and described taper cylindrical and taper hole closely cooperate, and described straight hole and extension bar cylindrical precision are slidably matched.
In described extension bar, nose end is at least fixed itself and described taper shank cylindrical by three jackscrews, and its gap is 0.01-0.02mm.
The cylindrical place of described tapered sleeve bigger diameter end arranges the annular projection fixing with it, and described straight hole and described extension bar cylindrical precision are slidably matched, and its gap is 0.01-0.02mm.
Described taper shank arranges cylindric, and described jackscrew evenly arranges, and it fixes described taper shank cylindrical and described extension bar endoporus.
During the utility model work: because main shaft is arranged on scroll chuck, the running of electricity main shaft drives main shaft rotation, the screw tap direction of feed being arranged on tailstock is consistent with the axial direction of described electric main shaft, along with slowly entering workpiece to be machined, screw tap carries out tapping, the taper hole that is placed in screw tap extension bar cylindrical place's tapered sleeve and main shaft one end is chimeric fixing, tapered sleeve cylindrical annular projection and spindle hole clamping, scroll chuck, centre frame and described tapered sleeve make main shaft, workpiece to be machined and screw tap are more stable, can not beat and cause the product that processes seriously overproof because of main shaft and screw tap like this, thereby realized high accuracy process.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are: simple in structure, cost is low, easy to operate, and machining accuracy is high, has improved operating efficiency.
Accompanying drawing explanation
The structural representation of Fig. 1 the utility model embodiment tapered sleeve.
Fig. 2 the utility model embodiment tool structure schematic diagram.
Fig. 3 the utility model work piece main axle structure schematic diagram.
Wherein, Reference numeral is: 1, extension bar; 2, main shaft; 3, taper hole; 4, tapered sleeve; 5, taper shank; 6, extension bar endoporus; 7, straight hole; 8, rib shape handle; 9, jackscrew; 10, annular projection.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Certainly, specific embodiment described herein is only in order to explain the utility model, and is not used in restriction the utility model.
Embodiment 1
Referring to Fig. 1, Fig. 2, Fig. 3, the utility model is a kind of high-precision main shaft elongated hole internal thread processing tool, it is characterized in that, described frock comprise extension bar 1 and with the chimeric fixing tapered sleeve 4 of main shaft 2 one end taper hole 3, described extension bar 1 is cylindric, its one end arranges the endoporus coordinating with taper shank 5 cylindricals, the rib shape handle 8 that other end setting and tailstock tool are identical; Described tapered sleeve 4 is set to the straight hole 7 at taper cylindrical and its two ends of UNICOM, and described taper cylindrical and described taper hole 3 closely cooperate, and described straight hole 7 is slidably matched with extension bar 1 cylindrical precision.
Described extension bar endoporus 6 ends are at least fixed itself and described taper shank 5 cylindricals by three jackscrews 9, and its gap is 0.01-0.02mm.
The cylindrical place of described tapered sleeve 4 bigger diameter ends arranges the annular projection 10 fixing with its cylindrical, and described straight hole 7 is slidably matched with described extension bar 1 cylindrical precision, and its gap is 0.01-0.02mm.
Described taper shank 5 arranges cylindric, and described jackscrew 9 evenly arranges, and it is fixing by described taper shank cylindrical and described extension bar endoporus 6.
The utility model can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.

Claims (4)

1. a high-precision main shaft elongated hole internal thread processing tool, it is characterized in that, described frock comprise extension bar and with the chimeric fixing tapered sleeve of taper hole of main shaft one end, described extension bar is cylindric, its one end arranges the endoporus coordinating with taper shank cylindrical, the rib shape handle that other end setting and tailstock tool are identical; Described tapered sleeve is set to the straight hole at taper cylindrical and its two ends of UNICOM, and described taper cylindrical and described taper hole closely cooperate, and described straight hole and extension bar cylindrical precision are slidably matched.
2. a kind of high-precision main shaft elongated hole internal thread processing tool according to claim 1, is characterized in that, in described extension bar, nose end is at least fixed itself and described taper shank cylindrical by three jackscrews, and its gap is 0.01-0.02mm.
3. a kind of high-precision main shaft elongated hole internal thread processing tool according to claim 1 and 2, it is characterized in that, the cylindrical place of described tapered sleeve bigger diameter end arranges the annular projection fixing with it, and described straight hole and described extension bar cylindrical precision are slidably matched, and its gap is 0.01-0.02mm.
4. a kind of high-precision main shaft elongated hole internal thread processing tool according to claim 2, is characterized in that, described taper shank arranges cylindric, and described jackscrew evenly arranges, and it fixes described taper shank cylindrical and described extension bar endoporus.
CN201320619254.2U 2013-10-09 2013-10-09 High precision spindle extended hole internal thread machining tool Expired - Fee Related CN203471091U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320619254.2U CN203471091U (en) 2013-10-09 2013-10-09 High precision spindle extended hole internal thread machining tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320619254.2U CN203471091U (en) 2013-10-09 2013-10-09 High precision spindle extended hole internal thread machining tool

Publications (1)

Publication Number Publication Date
CN203471091U true CN203471091U (en) 2014-03-12

Family

ID=50219501

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320619254.2U Expired - Fee Related CN203471091U (en) 2013-10-09 2013-10-09 High precision spindle extended hole internal thread machining tool

Country Status (1)

Country Link
CN (1) CN203471091U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106141336A (en) * 2016-08-05 2016-11-23 山东钢铁股份有限公司 Screw tap extension bar sheathing tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106141336A (en) * 2016-08-05 2016-11-23 山东钢铁股份有限公司 Screw tap extension bar sheathing tool
CN106141336B (en) * 2016-08-05 2018-05-11 山东钢铁股份有限公司 Screw tap extension bar sheathing tool

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140312

Termination date: 20191009

CF01 Termination of patent right due to non-payment of annual fee