CN105382688A - Valve grinding clamp - Google Patents

Valve grinding clamp Download PDF

Info

Publication number
CN105382688A
CN105382688A CN201510774695.3A CN201510774695A CN105382688A CN 105382688 A CN105382688 A CN 105382688A CN 201510774695 A CN201510774695 A CN 201510774695A CN 105382688 A CN105382688 A CN 105382688A
Authority
CN
China
Prior art keywords
elastic collet
collet chuck
valve
bolt
locating
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
CN201510774695.3A
Other languages
Chinese (zh)
Inventor
包俊
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.)
CHONGQING TENGTIAN TECHNOLOGICAL DEVELOP Co Ltd
Original Assignee
CHONGQING TENGTIAN TECHNOLOGICAL DEVELOP 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 CHONGQING TENGTIAN TECHNOLOGICAL DEVELOP Co Ltd filed Critical CHONGQING TENGTIAN TECHNOLOGICAL DEVELOP Co Ltd
Priority to CN201510774695.3A priority Critical patent/CN105382688A/en
Publication of CN105382688A publication Critical patent/CN105382688A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • B24B41/061Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
    • B24B41/062Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs

Abstract

The invention discloses a valve grinding clamp in the field of valve machining devices. The valve grinding clamp comprises a cylindrical locating base with the horizontally-arranged axis and a centre. The right end of the locating base is fixedly connected with an elastic collet, the left end of the elastic collet is in a solid cylinder shape, and the right end of the elastic collet is in a hollow cylinder shape. An inner cone face inclined towards the center of the elastic collet by 45 degrees is arranged on the right end face of the elastic collet. A locating bolt is arranged in the center of the left end of the elastic collet, the right end of the locating bolt stretches into the right end of the elastic collet, and the right end face of the locating bolt is located at the left side of the right end face of the elastic collet. The elastic collet, the locating bolt, the locating base and the centre are located on the same axis. According to the scheme, the elastic collet and the locating bolt are arranged, so that during valve grinding, the locating precision of the clamp on a valve is higher, locating is more accurate, the size precision of the machined valve is higher, quality is better, the reject rate in the machining process is low, and the production cost is reduced.

Description

Valve grinding clamp
Technical field
The present invention relates to valve processing unit (plant) field, be specifically related to a kind of valve grinding clamp.
Background technology
Automobile engine is entered, and exhaust valve is the door of engine chamber, works in high temperature, high pressure, corrosive environment, bears strong impact and violent friction.The quality of valve quality directly has influence on the important service behaviour of the moment of torsion, oil consumption, life-span etc. of automobile, is one of most important part in automobile.
At present, automotive engine valves generally adopts heat-resisting high-alloy steel manufacture, by more than 60 procedures such as forging, welding, rough turn, finish turning, carburizing, polishing, inspections, is a product having compared with high technology content.In the processing and manufacturing of valve, carry out polishing to the surface of valve be absolutely necessary, when polishing to valve root circular arc and valve stem need can axially, radial location, the fixture that valve carries out processing can be clamped again.Usually adopt in prior art fixing center sleeve and movable top come clamping to valve, the top of center sleeve is provided with the inner conical drogue of 60 °, inner conical drogue and valve disk terminal surface chamfer place locate, the precision of this location structure location is subject to the impact of valve retainer diameter, chamfering angle size, locate not accurate enough, easily cause the crooked of valve root circular arc and valve stem after processing, valve cannot normally be used, and permanent use significantly can increase production cost.
Summary of the invention
The invention is intended to provide a kind of valve grinding clamp, to improve the positioning precision of valve polishing processing.
For achieving the above object, basic technology scheme of the present invention is as follows: valve grinding clamp, comprising axis is horizontally disposed columniform positioning seat, top, the right-hand member of described positioning seat is fixedly connected with elastic collet chuck, the left end of described elastic collet chuck is solid cylinder, and the right-hand member of elastic collet chuck is hollow cylindrical; The right side of described elastic collet chuck is the inner conical surface to the centroclinal 45° angle of elastic collet chuck; The left end center of described elastic collet chuck is provided with bolt, and the right-hand member of described bolt stretches into the right-hand member of described elastic collet chuck, and the right side of described bolt is positioned at the left side of the right side of elastic collet chuck; Described elastic collet chuck, bolt, positioning seat, to be toply positioned on same axis.
Principle and the advantage of this programme are: during operation, be placed on positioning seat by needing the valve of processing and top between, top stylotrachealis one end of withstanding valve, the chamfering place of the inner conical surface clamping valve retainer end face of elastic collet chuck right-hand member.The cylindrical portion of elastic collet chuck can make radial enlargement and contraction, and top promotion valve can be moved axially, and carries out radial location to valve simultaneously.Bolt in elastic collet chuck accurately can control the axial displacement of valve, complete the axial location to valve, simultaneously different by the radial clamping force of cylindrical portion in axially different position of elastic collet chuck, have adjusted the size of radial clamping force when bolt adjusts the axial displacement of valve simultaneously.When this programme makes valve polish by arranging elastic collet chuck and bolt, the positioning precision of fixture to valve is higher, and location is more accurate, and the valve dimensional accuracy processed is higher, better quality, and the percent defective of process is low, reduces production cost.
Preferred version one, based on the one of scheme improve, the sidewall of the cylindrical portion of described elastic collet chuck is circumferentially with multiple points of cracks, axial arranged along elastic collet chuck of described point of crack.Such setting makes the sidewall of the cylindrical portion of elastic collet chuck be divided into many flaps, more convenient when enlargement and contraction, more accurate to the radial location of valve.
Preferred version two, preferably the one of is improved, and the outside of described elastic collet chuck is fixedly connected with cylindric protective sleeve, and the internal diameter of described protective sleeve is equal with the external diameter of described elastic collet chuck.。The sidewall arranging protective sleeve protection elastic collet chuck can not be damaged by the high temperature iron sand splashed in process, ensures that many flaps sidewall of elastic collet chuck can not be out of shape after long-term use, still has the valve retainer that elasticity can clamp valve.
Preferred version three, preferably the one of two is improved, and is fixedly connected with between described protective sleeve with described elastic collet chuck by screw.Adopt screw to connect protective sleeve and elastic collet chuck, make the connection between protective sleeve and elastic collet chuck more firm, ensure that protective sleeve can not get loose.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: positioning seat 1, top 2, elastic collet chuck 3, bolt 4, protective sleeve 5, screw 6, valve 7.
Embodiment is substantially as shown in Figure 1: valve grinding clamp, comprising axis is horizontally disposed columniform positioning seat 1 and top 2, the right-hand member of described positioning seat 1 is fixedly connected with elastic collet chuck 3, and the left end of described elastic collet chuck 3 is solid cylinder, right-hand member is hollow cylindrical; The right side of described elastic collet chuck 3 is the inner conical surface to the centroclinal 45° angle of elastic collet chuck 3; The left end center of described elastic collet chuck 3 is provided with bolt 4, and the right-hand member of described bolt 4 stretches into the right-hand member of described elastic collet chuck 3, and the right side of described bolt 4 is positioned at the left side of the right side of elastic collet chuck 3; Described elastic collet chuck 3, bolt 4, positioning seat 1, top 2 are positioned on same axis.The sidewall of the cylindrical portion of described elastic collet chuck 3 is circumferentially with multiple points of cracks, axial arranged along elastic collet chuck 3 of described point of crack.The outside screw 6 of described elastic collet chuck 3 is connected with cylindric protective sleeve 5, and the internal diameter of described protective sleeve 5 is equal with the external diameter of described elastic collet chuck 3.Protective sleeve 5 protects the sidewall of elastic collet chuck 3 can not to be damaged by the high temperature iron sand splashed in process, ensures that many flaps sidewall of elastic collet chuck 3 can not be out of shape after long-term use, still has the valve retainer that elasticity can clamp valve 7.Adopt screw 6 to connect protective sleeve 5 and elastic collet chuck 3, make the connection between protective sleeve 5 and elastic collet chuck 3 more firm, ensure that protective sleeve 5 can not get loose.
In the present embodiment, during operation, the valve 7 of processing will be needed to be placed between positioning seat 1 and top 2, top 2 stylotrachealis one end of withstanding valve 7, the chamfering place of the inner conical surface clamping valve retainer end face of elastic collet chuck 3 right-hand member.Many flaps sidewall of the cylindrical portion of elastic collet chuck 3 can make radial enlargement and contraction, and making top 2 to promote valve 7 can move axially, and carries out radial location to valve 7 simultaneously.The sidewall of the cylindrical portion of elastic collet chuck 3 is made to be divided into many flaps, more convenient when enlargement and contraction, more accurate to the radial location of valve 7.Bolt 4 in elastic collet chuck 3 accurately can control the axial displacement of valve 7, complete the axial location to valve 7, simultaneously different by the radial clamping force of cylindrical portion in axially different position of elastic collet chuck 3, have adjusted the size of radial clamping force when bolt 4 adjusts the axial displacement of valve 7 simultaneously.When this programme makes valve 7 polish by arranging elastic collet chuck 3 and bolt 4, the positioning precision of fixture to valve 7 is higher, and location is more accurate, and valve 7 dimensional accuracy processed is higher, and better quality, the percent defective of process is low, reduces production cost.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and/or characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.

Claims (4)

1. valve grinding clamp, comprising axis is horizontally disposed columniform positioning seat, top, and it is characterized in that, the right-hand member of described positioning seat is fixedly connected with elastic collet chuck, and the left end of described elastic collet chuck is solid cylinder, and the right-hand member of elastic collet chuck is hollow cylindrical; The right side of described elastic collet chuck is the inner conical surface to the centroclinal 45° angle of elastic collet chuck; The left end center of described elastic collet chuck is provided with bolt, and the right-hand member of described bolt stretches into the right-hand member of described elastic collet chuck, and the right side of described bolt is positioned at the left side of the right side of elastic collet chuck; Described elastic collet chuck, bolt, positioning seat, to be toply positioned on same axis.
2. valve grinding clamp according to claim 1, is characterized in that: the sidewall of the cylindrical portion of described elastic collet chuck is circumferentially with multiple points of cracks, axial arranged along elastic collet chuck of described point of crack.
3. valve grinding clamp according to claim 2, is characterized in that: the outside of described elastic collet chuck is fixedly connected with cylindric protective sleeve, and the internal diameter of described protective sleeve is equal with the external diameter of described elastic collet chuck.
4. valve grinding clamp according to claim 3, be is characterized in that: be fixedly connected with by screw between described protective sleeve with described elastic collet chuck.
CN201510774695.3A 2015-11-13 2015-11-13 Valve grinding clamp Pending CN105382688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510774695.3A CN105382688A (en) 2015-11-13 2015-11-13 Valve grinding clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510774695.3A CN105382688A (en) 2015-11-13 2015-11-13 Valve grinding clamp

Publications (1)

Publication Number Publication Date
CN105382688A true CN105382688A (en) 2016-03-09

Family

ID=55415805

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510774695.3A Pending CN105382688A (en) 2015-11-13 2015-11-13 Valve grinding clamp

Country Status (1)

Country Link
CN (1) CN105382688A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106514375A (en) * 2016-11-30 2017-03-22 重庆代发铸造有限公司 Engine valve clamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106514375A (en) * 2016-11-30 2017-03-22 重庆代发铸造有限公司 Engine valve clamp
CN106514375B (en) * 2016-11-30 2018-07-06 重庆代发铸造有限公司 Engine valve fixture

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WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160309