CN104889783A - Coating clamp for lathe for machining hole of eccentric valve body - Google Patents

Coating clamp for lathe for machining hole of eccentric valve body Download PDF

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Publication number
CN104889783A
CN104889783A CN201510231232.2A CN201510231232A CN104889783A CN 104889783 A CN104889783 A CN 104889783A CN 201510231232 A CN201510231232 A CN 201510231232A CN 104889783 A CN104889783 A CN 104889783A
Authority
CN
China
Prior art keywords
clamp body
valve body
eccentric valve
lathe
clamp
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.)
Pending
Application number
CN201510231232.2A
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Chinese (zh)
Inventor
胡大超
张洪宝
常华
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.)
Shanghai Institute of Technology
Original Assignee
Shanghai Institute of Technology
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 Shanghai Institute of Technology filed Critical Shanghai Institute of Technology
Priority to CN201510231232.2A priority Critical patent/CN104889783A/en
Publication of CN104889783A publication Critical patent/CN104889783A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general

Abstract

The invention relates to a coating clamp for a lathe for machining a hole of an eccentric valve body. The front end of a clamp body ring sleeve is in fastening connection with the eccentric valve body through a locking screw, and a balancing weight is arranged on the outer portion of the front end of the clamp body ring sleeve in a matched manner. The rear end of the clamp body ring sleeve is in fastening connection with a fixed flange. The clamp body ring sleeve is arranged, and the balancing weight and a clamping device are put on the clamp body ring sleeve; workpiece clamping is facilitated, the damage to workpieces is reduced, and the machining precision is improved; compared with same class clamps, through diamond-like carbon coating treatment, the clamp has the advantages of being high in wear resistance, high in working efficiency, long in service life, stable in workpiece machining quality and the like; according to the coating clamp special for the lathe for machining the hole of the eccentric valve body, lathe resources can be fully utilized, the workpieces can be conveniently clamped, a tool setting alignment working procedure is omitted, and the labor amount of an operator is reduced; and the clamp is simple in structure, few in component and low in machining cost, and large-scale production can be easily achieved.

Description

The lathe coated fixture of eccentric valve body opening processing
Technical field
The present invention relates to a kind of coating turning attachment, be specifically related to a kind of lathe-use clamp processing eccentric valve body opening.
Background technology
During current industry processing eccentric valve body opening, the general method adopting four paws single action or three-jaw self-centering chuck cushion block, machining accuracy is not high, and clamp wear is serious.No matter be jobbing work, or batch production, be difficult to meet requirement on machining accuracy according to general Alignment Method, difficulty of processing is comparatively large, and cost is higher.In addition, the clamping of the many employings of other fixture single bolt or class compress arm-type clamping, and reliability is not high, and machining accuracy is poor, and abrasion resistance properties is lower, is easily shifted, and improve part rejection rate, increase production cost and labour intensity.
Summary of the invention
The present invention is the technical problem that will solve the processing of eccentric valve body opening, and provide that a kind of workpiece loading and unloading is convenient and swift, wearability is strong, the life-span is long, machining accuracy is high, and the lathe coated fixture of the eccentric valve body opening of applicable batch processing few to workpiece damage, this fixture applies diamond-like coating between clamp body and connector, solve the deficiencies such as this fixture wearability is low, precision reduces gradually, component is frequently changed, greatly strengthen clamp body hardness, friction and wear behavior, extend fixture service life, improve overall turning efficiency.
The present invention will realize above-mentioned purpose, the technical scheme taked is: a kind of lathe coated fixture of eccentric valve body opening processing, comprise alignment pin, mounting flange, clamp body annulus sleeve, lock-screw, eccentric valve body, balancing weight, be fastenedly connected eccentric valve body by lock-screw in described clamp body annulus barrel forward end, described clamp body annulus barrel forward end outside is furnished with one piece of balancing weight; Described clamp body annulus sleeve rear end and mounting flange are fastenedly connected.
Connecting hole in described alignment pin, mounting flange, the screw hole of clamp body annulus sleeve, balancing weight inner surface all apply one deck physical vapour deposition (PVD) diamond-like coating.
Evenly be provided with four bolts in same radial direction between described clamp body annulus sleeve and mounting flange, and be fixed together with hex nut and pad.
In the middle part of described clamp body annulus barrel forward end, same axial positions radial direction is evenly provided with three screw holes, and screw hole is provided with lock-screw.
Described clamp body annulus sleeve bottom center is provided with alignment pin, locating pre-hole, realizing eccentric orfice axis and lathe spindle dead in line by locating eccentric valve to be processed.
Between described clamp body annulus sleeve bottom and eccentric valve body, ring block is housed, and ring block is coaxial with clamp body annulus sleeve, surface soldered is connected, and ring block thickness is processing headspace axial distance.
The invention has the beneficial effects as follows: put by arranging clamp body annulus cover and balancing weight and clamping device being placed on clamp body annulus, facilitate clamping workpiece, reduce the damage to workpiece, improve machining accuracy; Compare similar fixture, by diamond-like coating process, fixture has the advantages such as wearability is strong, operating efficiency is high, long service life, workpiece processing quality are stable; Lathe process eccentric valve body opening special-purpose coat fixture of the present invention, can make full use of lathe resource, and clamping workpiece is convenient, saves tool setting centering operation, alleviates operating personnel's amount of labour; This fixture structure is simple, parts are less, and processing cost is low, easily realizes producing in enormous quantities.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is right view of the present invention;
Fig. 3 is the sectional view in A-A cross section in Fig. 2;
Fig. 4 is partial sectional view B of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, technical scheme of the present invention is described in detail.
As shown in Figures 1 to 4, the lathe coated fixture of eccentric valve body opening processing of the present invention, comprises alignment pin 1, bolt 2, mounting flange 3, clamp body annulus sleeve 4, lock-screw 5, eccentric valve body opening 6, eccentric valve body 7, balancing weight 8, hex nut 9, pad 10, ring block 11.
Alignment pin 1, alignment pin are positioned at clamp body annulus and overlap 4 central through hole places, closely cooperate with mounting flange 3, pre-hole is located by locating eccentric valve to be processed, make fixture annulus sleeve centerline, eccentric valve centerline hole to be processed and lathe spindle center line coaxial, mounting flange 3 and clamp body annulus sleeve 4 are fastenedly connected by bolt 2, clamp body front end arranges clamping device, and clamp body annulus cover 3 outer middle side parts are provided with balancing weight 8.
Screw hole on bolt hole on alignment pin 1, balancing weight 8 inner surface, mounting flange 3, clamp body annulus cover 4, lock-screw 5 hole inwall all adopt the process of physical vapour deposition (PVD) diamond-like coating.By arranging clamping device, in the middle part of clamp body annulus sleeve 4, same radial direction is evenly provided with three lock-screws 5, and eccentric valve body 7 is arranged on sleeve inner, regulates locking amount size, locates and fastening workpiece, ensure that eccentric valve body opening 6 to be processed is placed in clamp body center.
Valve body piece loads in clamp body, and bore the pre-hole, location of eccentric orfice in advance in the left side of valve body, make positioning action, the position shaping hole with right side heterochiral position occurs in correspondence with each other.Slightly 1 positioning by locating bottom pre-hole, the location on workpiece and clamp body, realizing eccentric orfice axis and lathe spindle dead in line.Processing eccentric valve body opening time, clamp body parts can freely be installed and removed, workpiece and clamp body 1 motionless with main shaft geo-stationary, ensure dimensional accuracy better.
Be provided with clamping device in the middle part of described clamp body sleeve 4, same position place radial direction is evenly provided with three screw holes, screw hole is provided with lock-screw 5, and soket head cap screw selected by described lock-screw 5.
Described clamp body sleeve 4 rear end is provided with positioner, and mounting flange 3 and clamp body sleeve 4 are evenly provided with four bolts 2 in same radial direction, coordinates hex nut 9 and pad 10 connection functions.
The quantity of described balancing weight 8 is one piece, is fixed by welding in the outer middle side part of clamp body annulus sleeve 4.
Described ring block 11 is placed in clamp body annulus sleeve 4 and surveys by workpiece, coaxial and surface soldered is connected with clamp body annulus sleeve 4, thickness is determined according to processing headspace axial distance, play location eccentricity flange radial direction concordant, limit the effect of eccentric flange axial freedom.
In embodiments of the invention, for ensureing processing stationarity, balance clamping is carried out according to eccentric situation and fixture deadweight clamping balancing weight 8, balancing weight 8 is placed in the outer middle side part of clamp body annulus sleeve 4, overlap 4 by lock-screw 9 and clamp body annulus to be fastenedly connected, balancing weight quantity is set to one piece, and weight can be determined according to the real data accurate Calculation of blance test.
In embodiments of the invention, alignment pin 1, bolt 2, mounting flange 3 and lock-screw 5 belong to standard component, the convenient making of this fixture also can be reduced costs, clamp body annulus sleeve 4 adopts steel to make, the process of sleeve 4 bottom dead center position through hole, diameter is determined according to alignment pin 1 and eccentric valve body opening 6 size to be processed.
In embodiments of the invention, ring block 11 is placed in clamp body annulus cover 4 and surveys by workpiece, overlap 4 coaxial and surface soldered with clamp body annulus to be connected, thickness is determined according to processing headspace axial distance, play location eccentricity valve body radial direction concordant, limit the effect of eccentric valve body 7 axial freedom.
In embodiments of the invention, alignment pin 1 is threaded connection and is positioned at clamp body annulus and overlaps 4 centers.When eccentric valve body 7 loads in clamp body, bore the pre-hole, location of eccentric orfice in advance in the left side of valve body, making positioning action, there is heterochiral position in correspondence with each other in the position shaping hole with right side.Alignment pin 1 screws out clamp body annulus and overlaps 4 inner face certain distances, locate pre-hole with the to be processed eccentric valve body of clamping to coordinate and locate, lock-screw 5 pretension fixes eccentric valve body 7, valve body left side and clamp body annulus overlap 4 inner faces and keep certain distance, it is concordant that alignment pin 1 precession to shank left side and clamp body annulus overlaps 4 outer faces, realize eccentric orfice axis and lathe spindle dead in line, bolt 2 coordinates hex nut 9 and pad 10 by mounting flange 3 and clamp body annulus cover 4 clamping, completes the location to eccentric valve body 7 to be processed and clamping.
In embodiments of the invention, for ensureing fixture eccentric valve body workpiece easy to setup, accurately to workpiece to be processed and clamp body location, described clamp body rear end is provided with fixture, mounting flange 3 and clamp body annulus overlap 4 and are evenly provided with four bolts 2 in same radial direction, make clamp body accurate positioning, convenient disassembly.

Claims (6)

1. the lathe coated fixture of an eccentric valve body opening processing, comprise alignment pin (1), mounting flange (3), clamp body annulus sleeve (4), lock-screw (5), eccentric valve body (7), balancing weight (8), it is characterized in that: be fastenedly connected eccentric valve body (7) by lock-screw (5) in described clamp body annulus sleeve (4) front end, described clamp body annulus sleeve (4) outside, front end is furnished with one piece of balancing weight; Described clamp body annulus sleeve (4) rear end and mounting flange (3) are fastenedly connected.
2. the lathe coated fixture of eccentric valve body opening processing according to claim 1, is characterized in that: the connecting hole in described alignment pin (1), mounting flange (3), the screw hole of clamp body annulus sleeve (4), balancing weight inner surface all apply one deck physical vapour deposition (PVD) diamond-like coating.
3. the lathe coated fixture of eccentric valve body opening processing according to claim 1, it is characterized in that: between described clamp body annulus sleeve (4) and mounting flange (3), be evenly provided with four bolts (2) in same radial direction, and be fixed together with hex nut (9) and pad (10).
4. the lathe coated fixture of eccentric valve body opening processing according to claim 1, it is characterized in that: the same axial positions radial direction of described clamp body annulus sleeve (4) front center is evenly provided with three screw holes, screw hole is provided with lock-screw (1).
5. the lathe coated fixture of eccentric valve body opening processing according to claim 1, it is characterized in that: place of described clamp body annulus sleeve (4) bottom centre is provided with alignment pin (1), locating pre-hole by locating eccentric valve to be processed, realizing eccentric orfice axis and lathe spindle dead in line.
6. the lathe coated fixture of eccentric valve body opening processing according to claim 1, it is characterized in that: between described clamp body annulus sleeve (4) bottom and eccentric valve body (7), ring block (11) is housed, and ring block (11) is coaxial with clamp body annulus sleeve (4), surface soldered is connected, and ring block (11) thickness is processing headspace axial distance.
CN201510231232.2A 2015-05-08 2015-05-08 Coating clamp for lathe for machining hole of eccentric valve body Pending CN104889783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510231232.2A CN104889783A (en) 2015-05-08 2015-05-08 Coating clamp for lathe for machining hole of eccentric valve body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510231232.2A CN104889783A (en) 2015-05-08 2015-05-08 Coating clamp for lathe for machining hole of eccentric valve body

Publications (1)

Publication Number Publication Date
CN104889783A true CN104889783A (en) 2015-09-09

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107649907A (en) * 2017-10-30 2018-02-02 中国航发成都发动机有限公司 A kind of clamping device for processing small eccentricity ladder circular hole part
CN108778580A (en) * 2016-04-16 2018-11-09 J.G.魏瑟尔泽内有限责任两合公司 Method for turnery processing lathe to be arranged and turnery processing lathe
CN109489926A (en) * 2018-11-15 2019-03-19 北京航空航天大学 A kind of guided missile segmented vibration test fixture and system
CN110653647A (en) * 2018-06-29 2020-01-07 兄弟工业株式会社 Clamping arm of tool changing device and machine tool

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892419A (en) * 1974-06-19 1975-07-01 Gen Motors Corp Balanced floating machine tool chuck
CN2053957U (en) * 1989-08-05 1990-03-07 樊启先 Fast centre-regulating chuck
CN201073694Y (en) * 2007-09-06 2008-06-18 江西铜业集团公司 Eccentric hole processing fixture for lathe
CN201907009U (en) * 2010-12-20 2011-07-27 天津市中海上达机械制造有限公司 Fixture for planet carrier lathe
CN202097424U (en) * 2011-05-03 2012-01-04 天津天海同步科技股份有限公司 Eccentric fixture
CN104029037A (en) * 2014-06-05 2014-09-10 上海应用技术学院 Drill press coating clamp for processing upper valve body hole

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892419A (en) * 1974-06-19 1975-07-01 Gen Motors Corp Balanced floating machine tool chuck
CN2053957U (en) * 1989-08-05 1990-03-07 樊启先 Fast centre-regulating chuck
CN201073694Y (en) * 2007-09-06 2008-06-18 江西铜业集团公司 Eccentric hole processing fixture for lathe
CN201907009U (en) * 2010-12-20 2011-07-27 天津市中海上达机械制造有限公司 Fixture for planet carrier lathe
CN202097424U (en) * 2011-05-03 2012-01-04 天津天海同步科技股份有限公司 Eccentric fixture
CN104029037A (en) * 2014-06-05 2014-09-10 上海应用技术学院 Drill press coating clamp for processing upper valve body hole

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108778580A (en) * 2016-04-16 2018-11-09 J.G.魏瑟尔泽内有限责任两合公司 Method for turnery processing lathe to be arranged and turnery processing lathe
CN107649907A (en) * 2017-10-30 2018-02-02 中国航发成都发动机有限公司 A kind of clamping device for processing small eccentricity ladder circular hole part
CN110653647A (en) * 2018-06-29 2020-01-07 兄弟工业株式会社 Clamping arm of tool changing device and machine tool
CN110653647B (en) * 2018-06-29 2022-07-15 兄弟工业株式会社 Clamping arm of tool changing device and machine tool
CN109489926A (en) * 2018-11-15 2019-03-19 北京航空航天大学 A kind of guided missile segmented vibration test fixture and system

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Application publication date: 20150909

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