CN203738578U - Valve disc conical surface grinding positioning device - Google Patents

Valve disc conical surface grinding positioning device Download PDF

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Publication number
CN203738578U
CN203738578U CN201320787907.8U CN201320787907U CN203738578U CN 203738578 U CN203738578 U CN 203738578U CN 201320787907 U CN201320787907 U CN 201320787907U CN 203738578 U CN203738578 U CN 203738578U
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CN
China
Prior art keywords
cylinder
positioning
push rod
valve
unit
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Active
Application number
CN201320787907.8U
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Chinese (zh)
Inventor
罗鹏
陈冠华
郑小原
邹邑生
植忠荣
欧坚荣
张弢
罗天友
黄立勋
廉绍玲
郭潮
植育胜
李东平
卢啟棠
莫剑少
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.)
Huaiji landing gate Co., Ltd.
Original Assignee
HUAIJI DENGYUN AUTO-PARTS (HOLDING) Co Ltd
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Priority to CN201320787907.8U priority Critical patent/CN203738578U/en
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Publication of CN203738578U publication Critical patent/CN203738578U/en
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Abstract

The utility model discloses a valve disc conical surface grinding positioning device, which comprises a base, a head frame, a power unit, a clamping unit and a positioning unit, wherein the head frame is arranged on the base; the power unit is arranged at one end of the head frame; a clamping unit is arranged at the other end of the head frame; the positioning unit is arranged outside and matched with the clamping unit so as to position a valve disc conical surface. The valve disc conical surface grinding positioning device overcomes the detect of the existing manufacture instruments that the unification of a design basis, a positioning basis and a measuring basis is not easily ensured due to error superposition, the valve disc conical surface is positioned and grinded by a disc end surface, and the consistency of the height, size and thickness of the valve disc conical surfaces is ensured.

Description

A kind of valve retainer conical surface grinding positioner
Technical field
The utility model relates to a kind of positioner of the valve retainer conical surface, especially a kind of dish end face location grinding valve retainer conical surface grinding positioner.
Background technology
Engine is a kind of mechanical device that produces power, and it can become mechanical energy by other forms of power conversion, conventionally has petrol engine, Diesel engine and aero-engine etc.The valve mechanism of engine is the important component part of whole engine air distribution system.Its effect is in engine working process, ensures that engine, at charging stage energy inspiration fuel gas mixture or air how as far as possible, seals in engine compresses and acting stage simultaneously reliably.
Refer to Fig. 1, it is the structural representation of engine valve.Conventionally valve is formed by connecting by valve disc 1 and valve stem 4.Wherein, the end of valve disc is positive is dish end face 2, and the side of the end of valve disc is the dish conical surface 3.The front, end of valve stem is small end face 5.The effect of temperature when being subject to engine combustion, valve stem 4 can be because being directly subject to gas heating to cause thermal expansion.In order to make valve under any circumstance, even in the time of engine overheat, can ensure to seal reliably, must be at valve stem 4 to reserved certain gap between near valve rocker valve stem top or push rod.If this gap is too small, when engine is heated, may be not closed completely, form gas leakage to cause engine power to decline and performance deterioration.If excesssive gap, can make to produce and clash between the part of power train, accelerated wear test, the opening time of valve reduces simultaneously, causes aeration quantity deficiency, causes engine power to decline.In addition, along with the wearing and tearing in using, valve can be slowly sinking, the amount of sinking is called valve deflection, valve deflection has determined the size of valve stem to the gap between valve rocker, and valve retainer height of conical surface (being that gauge diameter is to coiling end surface thickness) is to affect one of valve deflection critical size.So valve retainer height of conical surface directly affects the size of valve clearance, thereby affect the quality of valve quality, so that affect the performance of engine.
Traditional grinding to the dish conical surface is to make positioning datum with valve small end face 5, ensures valve retainer height of conical surface (valve retainer height of conical surface=valve overall length H-gauge diameter is to the length L of small end face) by controlling gauge diameter to length L and the valve overall length H of small end face.Because the accuracy of manufacture requirement of valve is more and more higher, especially the tolerance of valve retainer height of conical surface is more and more stricter, from original ± taper to ± 0.10mm of 0.20mm.The method of this small end face location grinding disc conical surface, makes valve retainer height of conical surface not only be subject to the impact of valve overall length but also be subject to the impact of gauge diameter to the length of small end face.The easy like this error that causes superposes, and is difficult to ensure the unification of design basis, positioning datum, measuring basis three benchmark, causes valve retainer conical surface thickness to differ, affect valve deflection, thereby cause the reserved excesssive gap of valve head or too small, cause valve sealing not tight, affect engine performance.
Utility model content
The purpose of this utility model is to overcome the deficiency that causes being difficult to ensure design basis, positioning datum, measuring basis three unifying datums in existing processing instrument in the time that the valve retainer conical surface is located due to error stack, a kind of mechanical device that is applicable to coil the end face location grinding valve retainer conical surface of the unification of guaranteeing process design basis, positioning datum, measuring basis three benchmark is provided, guarantees that the height dimension thickness of the valve retainer conical surface is consistent.
A kind of valve retainer conical surface grinding positioner, comprises support, the headstock, power unit, clamping unit and positioning unit; The described headstock is arranged on support, and this headstock one side is provided with described power unit, and another corresponding side is provided with described clamping unit, and described positioning unit is arranged on clamping unit outside, and coordinates with clamping device, to locate the valve retainer conical surface.
Described power unit comprises push rod, ejects push rod cylinder and clamping cylinder, wherein said clamping cylinder is arranged on the headstock one side and is connected with the headstock, the described push rod cylinder that ejects is arranged on the outside side of clamping cylinder, described push rod runs through and ejects push rod cylinder and clamping cylinder, and this push rod one end and valve small end face contact.Eject push rod cylinder and realize pushing ahead of push rod and return original position backward, the thrust that push rod is subject to ejecting push rod cylinder heads on valve small end face valve is pushed ahead, and valve retainer end face is contacted completely with positioning head.
Described clamping unit comprises front tapered sleeve, the sandwich and rear tapered sleeve of spring; Wherein, described inner cone is set on the headstock of the corresponding side of power unit, and described rear tapered sleeve is arranged in the headstock; Described spring is sandwich to be arranged between front tapered sleeve and rear tapered sleeve, and is clamped by the pressure between front tapered sleeve and rear tapered sleeve.It is sandwich that the valve stem of processed valve runs through described spring, and clamp valve by sandwich self elastic force of spring.Clamping cylinder is realized the compression to rear tapered sleeve and is unclamped; The pressure that rear tapered sleeve is subject to clamping cylinder makes the sandwich pressurized of spring that engine valve stem is clamped, and the pulling force that after the grinding disc conical surface, rear tapered sleeve is subject to clamping cylinder unclamps, meanwhile, and the sandwich valve that also unclamps of spring.
Described positioning unit comprises positioning cylinder support, positioning cylinder, positioning head, push rod, spacer and adjusting nut; Wherein, described positioning cylinder is horizontally installed on positioning cylinder support, and described push rod laterally runs through positioning cylinder, and putter face is provided with positioning head to clamping unit one end; Positioning cylinder end is provided with spacer and adjusting nut.At positioning cylinder end, spacer and adjusting nut are installed, the length that makes push rod stretch out positioning cylinder by adjustment spacer and adjusting nut just makes positioning head contact with valve retainer end face, in grinding valve retainer conical surface position.Realize pushing ahead of push rod and return original position backward with positioning cylinder; Positioning head is fixed on push rod, realizes positioning head and pushes ahead with valve retainer end face and contact along with moving forward and backward of push rod, plays positioning action, returns original position when the grinding disc conical surface.
Further, described power unit also comprises impeller-hub, and this impeller-hub one end penetrates clamping cylinder, and the other end surrounds the rear tapered sleeve of clamping unit.Clamping cylinder passes to rear tapered sleeve by impeller-hub by pressure, makes rear tapered sleeve fastening spring sandwich.
Further, the cylinder diameter of described positioning cylinder is larger than the cylinder diameter that ejects push rod cylinder.The cylinder diameter that ejects push rod cylinder is less than the cylinder diameter of positioning cylinder, make the thrust of push rod less than the thrust of push rod, after push rod heads on valve small end face and valve is pushed ahead and made coil end face and contact with positioning head, valve stops and does not continue to push ahead, and has realized the dish end face location grinding disc conical surface.
Further, the sandwich and push rod of described positioning head, push rod, spring is arranged in same level.
In order to understand more clearly the present invention, set forth the specific embodiment of the present invention below with reference to brief description of the drawings.
Brief description of the drawings
Fig. 1 is air valve structure schematic diagram.
Fig. 2 is positioner when location view of the utility model valve retainer conical surface.
Fig. 3 is positioner power unit and the clamping unit internal structure schematic diagram of the utility model valve retainer conical surface.
Fig. 4 is the positioner positioning unit structural representation of the utility model valve retainer conical surface.
Detailed description of the invention
Please refer to Fig. 2, it is positioner when location view of the utility model valve retainer conical surface.This one valve retainer conical surface grinding positioner, comprises support 10, the headstock 20, power unit 30, clamping unit 40 and positioning unit 50; The described headstock 20 is arranged on support 10, one side of the headstock 20 arranges described power unit 30, and another side of the headstock 20 arranges described clamping unit 40, and described positioning unit 50 is arranged on the outside of clamping unit 40 1 sides, positioning unit 50 coordinates with clamping unit 40, accurately to locate valve 6.
Refer to Fig. 3, it is positioner power unit and the clamping unit internal structure schematic diagram of the utility model valve retainer conical surface.Described power unit 30 comprises clamping cylinder 31, push rod 32, ejects push rod cylinder 33 and impeller-hub 34.Wherein, described clamping cylinder 31 is arranged on the headstock 20 1 sides and is connected with the headstock 20, described in eject push rod cylinder 33 and be arranged on clamping cylinder 31 outsides, described push rod 32 laterally runs through and ejects push rod cylinder 33 and clamping cylinder 31, and contacts with the small end face of valve 6.Described impeller-hub 34 one end penetrate clamping cylinder 31, and are controlled the motion of impeller-hub 34 by clamping cylinder 31.
Described clamping unit 40 comprises rear tapered sleeve 41, spring sandwich 42 and front tapered sleeve 43; Wherein, described rear cone, 41 are arranged on the headstock 5 inside, and its one end is pushed axle 34 and surrounds, and described front tapered sleeve 43 is arranged on the headstock 20 1 sides; Described spring sandwich 42 is arranged between front tapered sleeve 43 and rear tapered sleeve 41, and is clamped by the pressure between front tapered sleeve 41 and rear tapered sleeve 43.
Refer to Fig. 4, it is the positioner positioning unit structural representation of the utility model valve retainer conical surface.Described positioning unit 50 comprises positioning head 51, push rod 52, positioning cylinder 53, spacer 54, adjusting nut 55 and positioning cylinder support 56; Wherein, described positioning cylinder 53 is horizontally installed on positioning cylinder support 56, and described push rod 52 laterally runs through positioning cylinder 53, and push rod 52 regards to clamping unit 40 one end and is provided with positioning head 51, and the other end is provided with spacer 54 and adjusting nut 55.
Below will introduce in detail operation principle of the present utility model:
By successively sandwich to rear tapered sleeve 41, spring 42, front tapered sleeve 43 being put into 20 li of the headstocks.Spring sandwich 42 accurately locate by front tapered sleeve 43, the pressure clamping of the generation by rear tapered sleeve 41.Valve 6 is put in sandwich 42 holes of spring, chosen spacer 54 and make positioning head 51 touch the dish end face of valve 6 by adjusting spacer 54 and adjusting nut 55 according to the length of valve 6, the thrust that push rod 32 is subject to ejecting push rod cylinder 33 heads on the small end face of valve 6 valve 6 is pushed ahead, after the dish end face of valve 6 contacts completely with positioning head 51, less than the cylinder diameter of positioning cylinder 53 owing to ejecting the cylinder diameter of push rod cylinder 33, make the thrust of push rod 32 less than the thrust of push rod 52, now valve 6 stops and does not continue to push ahead, the thrust that then tapered sleeve 41 is subject to the impeller-hub 34 on clamping cylinder 31 makes sandwich 42 pressurizeds of spring that the bar portion of valve 6 is clamped, meanwhile, the pulling force that push rod 32 and positioning head 51 are subject to respectively ejecting push rod cylinder 33 and positioning cylinder 53 returns to original position, realize the dish end face location grinding disc conical surface.
With respect to prior art, the direct positioning disk end face of positioning head of the present utility model, directly by the design data location of valve retainer height of conical surface, reduce error in transmission valve small end face locate mode overlapping, overcome the deficiency that traditional location is difficult to ensure design basis, positioning datum, measuring basis three unifying datums, realize the unification of process design basis, positioning datum, measuring basis three benchmark, guarantee that valve retainer height of conical surface size thickness is consistent.
The present invention is not limited to above-mentioned embodiment, if various changes of the present invention or distortion are not departed to the spirit and scope of the present invention, if within these changes and distortion belong to claim of the present invention and equivalent technologies scope, the present invention is also intended to comprise these changes and distortion.

Claims (6)

1. a valve retainer conical surface grinding positioner, is characterized in that: comprise support, the headstock, power unit, clamping unit and positioning unit; The described headstock is arranged on support, and this headstock one side is provided with described power unit, and another corresponding side is provided with described clamping unit, and described positioning unit is arranged on clamping unit outside, and coordinates with clamping unit, to locate the valve retainer conical surface.
2. valve retainer conical surface grinding positioner according to claim 1, is characterized in that: described power unit comprises push rod, ejects push rod cylinder, clamping cylinder and impeller-hub; Wherein said clamping cylinder is arranged on the headstock one side and is connected with the headstock; The described push rod cylinder that ejects is arranged on the outside side of clamping cylinder; Described push rod laterally runs through and ejects push rod cylinder and clamping cylinder; Described impeller-hub is arranged in the headstock, and this impeller-hub one end penetrates clamping cylinder.
3. valve retainer conical surface grinding positioner according to claim 1, is characterized in that: described clamping unit comprises front tapered sleeve, the sandwich and rear tapered sleeve of spring; Wherein, described inner cone is set on the headstock of the corresponding side of power unit, and described rear tapered sleeve is arranged in the headstock; Described spring is sandwich to be arranged between front tapered sleeve and rear tapered sleeve, and is clamped by the pressure between front tapered sleeve and rear tapered sleeve.
4. valve retainer conical surface grinding positioner according to claim 1, is characterized in that: described positioning unit comprises positioning cylinder support, positioning cylinder, positioning head, push rod, spacer and adjusting nut; Wherein, described positioning cylinder is horizontally installed on positioning cylinder support, and this positioning cylinder end is provided with spacer and adjusting nut; Described push rod one end laterally penetrates positioning cylinder, and putter face is provided with positioning head to clamping unit one end.
5. according to the valve retainer conical surface grinding positioner described in the arbitrary claim of claim 1 to 4, it is characterized in that: the cylinder diameter of described positioning cylinder is larger than the cylinder diameter that ejects push rod cylinder.
6. valve retainer conical surface grinding positioner according to claim 5, is characterized in that: the sandwich and push rod of described positioning head, push rod, spring is arranged in same level.
CN201320787907.8U 2013-12-03 2013-12-03 Valve disc conical surface grinding positioning device Active CN203738578U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320787907.8U CN203738578U (en) 2013-12-03 2013-12-03 Valve disc conical surface grinding positioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320787907.8U CN203738578U (en) 2013-12-03 2013-12-03 Valve disc conical surface grinding positioning device

Publications (1)

Publication Number Publication Date
CN203738578U true CN203738578U (en) 2014-07-30

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ID=51338441

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320787907.8U Active CN203738578U (en) 2013-12-03 2013-12-03 Valve disc conical surface grinding positioning device

Country Status (1)

Country Link
CN (1) CN203738578U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493666A (en) * 2014-11-26 2015-04-08 镇江维纳特气门有限公司 Valve-retainer portion high-precision one-time formation grinding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493666A (en) * 2014-11-26 2015-04-08 镇江维纳特气门有限公司 Valve-retainer portion high-precision one-time formation grinding device
CN104493666B (en) * 2014-11-26 2017-03-08 镇江维纳特气门有限公司 A kind of Valve Disc high accuracy one-shot forming grinding attachment

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190530

Address after: 526499 Huaiji Dengyun Automobile Parts Co., Ltd. Factory Building 1-4, Hengdong Industrial Zone, Huaicheng Town, Huaiji County, Zhaoqing City, Guangdong Province

Patentee after: Huaiji landing gate Co., Ltd.

Address before: 526400 Dengyun Pavilion, Huaiji County, Zhaoqing City, Guangdong Province

Patentee before: HUAIJI DENGYUN AUTO-PARTS (HOLDING) CO., LTD.