CN105291045A - Limiting and press-fit process device and method for thin-walled tube assembly - Google Patents

Limiting and press-fit process device and method for thin-walled tube assembly Download PDF

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Publication number
CN105291045A
CN105291045A CN201510800974.2A CN201510800974A CN105291045A CN 105291045 A CN105291045 A CN 105291045A CN 201510800974 A CN201510800974 A CN 201510800974A CN 105291045 A CN105291045 A CN 105291045A
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CN
China
Prior art keywords
valve seat
spacing
spacing briquetting
armature component
press
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CN201510800974.2A
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Chinese (zh)
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CN105291045B (en
Inventor
李涛
张安伦
杨文涛
胡欣翔
田书明
朱谦
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SHANGHAI HENGTUO HYDRAULIC CONTROL TECHNOLOGY Co Ltd
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SHANGHAI HENGTUO HYDRAULIC CONTROL TECHNOLOGY Co Ltd
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Priority to CN201510800974.2A priority Critical patent/CN105291045B/en
Publication of CN105291045A publication Critical patent/CN105291045A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02Assembly jigs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention relates to a limiting and press-fit process device and method for a thin-walled tube assembly. The limiting and press-fit process device is composed of a fixing block, locking bolts, a limiting pressing block and a pressing head. A cavity with the appearance identical to that of a valve seat is formed in the upper end face of the fixing block. The two sides of the fixing block are each provided with a threaded hole, wherein the threaded holes correspond to holes of which the diameter is 6.2 mm and which are formed in the valve seat. The pose of the valve seat is limited through screw pins in the threaded holes. The directions of two planes at the top of a baffle of an armature assembly are adjusted through the screw pins, wherein the thickness of each plane is 1.5 mm. The limiting pressing block is composed of two symmetric bodies which are fastened into a whole through two screws and used for clamping the armature assembly, a stepped hole is formed in the center position of the attached faces of the two symmetric bodies of the limiting pressing block, and a press head is connected with the limiting pressing block and used for transmitting pressure to the limiting pressing block and keeping the limiting pressing block balanced. Through long-term repeated experiments and conclusions, by the adoption of the device and method, it can be guaranteed that products can meet the design requirement and the effective and reliable percent of pass is over 98%.

Description

The spacing press-loading process equipment of light-wall pipe assembly and method
Technical field
The present invention relates to a kind of technological equipment and method of light-wall pipe component assembling, the spacing press-loading process equipment of especially a kind of light-wall pipe assembly and method.
Background technology
At modern automation control development field, one of servo valve core product belonging to this field.The function of servo valve converts the current signal of input to mechanical signal, finally exports with the hydraulic pressure signal amplified.Torque-motor (hereinafter referred to as motor) is the main building block of servo valve, and belonging to first order switching mechanism, is also the core of servo valve.Its function converts the current signal of input to field signal, converts machinery to export by field signal, is called for short electricity---magnetic---machine transfer process.
Magnetic in motor part structure---machine transfer process is designed with a crucial piece number---valve seat armature component (hereinafter referred to as assembly one), the process of its practical function is: the longitudinal both sides of the armature in assembly secure coil block up and down and generate the magnetic line of force, the magnetic conductor up and down being simultaneously designed with high magnetic permeability and low-coercivity is positioned at up and down, and longitudinal both sides of armature have magnet steel to strengthen magnetic field intensity.When the electric current of input two groups of coils changes the magnetic field of alternation of will surviving, the lengthwise position of armature is waved with the change generation in magnetic field, unit due to the Arabic numerals of below the internal diameter 3(of bourdon tube is millimeter entirely), the minor diameter 2.5 of baffle plate, so also swing with the friction tight baffle plate of armature thereupon.The thin-walled position of bourdon tube then produces flexural deformation and produces reaction force simultaneously, and the reaction force promotion baffle plate eliminating bourdon tube when input current change recovers meta (namely armature also resets).
The part of this assembly and composition has function, the feature of following aspect:
1, valve seat armature component (hereinafter referred to as assembly one) is as Fig. 1, shown in 2, by valve seat 1 and armature component 2(hereinafter referred to as assembly two) (Fig. 3,4) are supporting assembles;
2,4.7 cylindricals of bourdon tube 4 and valve seat 1(Fig. 5 in assembly two, 6) assembly one is assembled into after axial centre 4.7 hole tight fit;
3, each component characteristics of assembly two and function thereof are respectively:
Bourdon tube 4 selects PH stainless steel, the elasticity had after solution treatment, add its longitudinally 2/3rds middle part be designed to wall thickness only 0.12, more present the elasticity speciality demand of design.
Baffle plate 3 selects precipitation strength type high elastic modulus alloy, high elastic modelling quantity, higher elasticity, and the displacement be presented on after signal of telecommunication conversion on baffle plate changes the displacement change flow output that flow produces.What armature 5 was selected is magnetically soft alloy, high magnetic conductivity and low-coercivity, improves the conversion efficiency in magnetic field;
4, the components of combination is designed with the requirement of size and dimension site error.Between the surface of the armature surface in assembly one and adjacent valve seat, dimensional tolerance is 0.2, the depth of parallelism designs is then requirement 0.02.And the axial perpendicularity in hole all requires 0.05 on two planes of the Weir Plate Thickness 1.5 in assembly two and valve seat.
The supporting process of assembly one, the implementation process of three place's shaped position error requirements, must adopt the technological equipment of very complicated technique and configuration precision, can meet the end product designing requirement in kind of assembly one.
Summary of the invention
The present invention will provide the spacing press-loading process equipment of a kind of light-wall pipe assembly and method, meets designing requirement, supporting demand with the finished product material object after satisfied assembling.
For achieving the above object, technical scheme of the present invention is: the spacing press-loading process equipment of a kind of light-wall pipe assembly, be made up of fixed block, clamping screw, spacing briquetting, pressure head, described fixed block upper surface is provided with the die cavity consistent with the profile of valve seat, the both sides of fixed block are respectively provided with a screw corresponding with the 6.2mm hole of valve seat, by the direction of baffle plate top thickness 1.5mm two plane of the attitude of the spacing valve seat of clamping screw and adjustment armature component in screw; Described spacing briquetting is made up of two symmetric bodies, two symmetric bodies are integral with two screw fastenings, for clamping armature component, the center of two symmetric body binding faces of spacing briquetting is provided with stepped hole, pressure head is connected with spacing briquetting, for spacing briquetting transmission of pressure, balance spacing briquetting maintenance level.
Stepped hole in spacing briquetting, the gap of 0.1mm is had between the thin-walled diameter of wherein aperture and armature component bourdon tube, during assembling light-wall pipe assembly, aperture is for clamping the thin-walled diameter position of armature component bourdon tube, and the step between large aperture implements on the step between bourdon tube size cylindrical.
A kind of spacing press-loading process method of light-wall pipe assembly, the steps include: the assembling first implementing valve seat armature component, valve seat is put into the die cavity of fixed block, limits the position of valve seat with clamping screw adjustment; Spacing briquetting is divided into two lobes, after the clamping wherein of the bourdon tube thin-walled position of armature component, with screw, spacing briquetting is tightened to one; Two planar ends of thick for the baffle plate of bourdon tube lower end 1.5mm are stretched in the center stepped hole of valve seat down; When the bourdon tube 4.7mm cylindrical of armature component touches valve seat 4.7mm hole, met the requirements by two in-planes of the two thick 1.5mm in clamping screw regulating fender top; Move down pressure head and adjust the backward spacing briquetting transmission of pressure of level of spacing briquetting until the lower plane of spacing briquetting is close to valve seat upper surface; Then lift pressure head, the spacing briquetting of righting, screw out two clamping screws, unclamp spacing briquetting, finally in fixed block, take out valve seat armature component, press-fit end.
Beneficial effect of the present invention:
The packaging technology of valve seat armature component is practical, effectively, reliably, the tool structure of employing is simple and direct, and the manufacturing cycle is short, and cost is low.Valve seat armature component after assembling meets designing requirement.
Servo valve belongs to the product of high, precision and frontier, and high-tech area is widely used, with high content of technology, value costliness.The function of servo valve forms primarily of two-stage, the power amplification of the conversion of the signal of the first order and the second level, and what amplification power amplification can arrange again, so that servo valve can control, and power output reaches tens, up to a hundred, the executing agency of even going up kiloton.The function of valve seat armature component " magnetic---machinery " is the important ring in motor " electricity---magnetic---machinery " transfer process, and the assembly of " magnetic---machinery " conversion links and the sensitivity of part quality to process and management are higher than other assembly and the part of servo valve, semi-finished product as magnetically soft alloy are strict especially to the requirement of management, can not collide with, clash into and implement machining.So there are 3 kinds of key items listing the work such as technique, management in 4 kinds of parts of the assembling of valve seat armature component and assembly." magnetic---machinery " translation function is stablized, for the function-stable of motor is laid a good foundation.
Assembling technique of the present invention is simple to operate, clear, convenient, easily grasp.
Accompanying drawing explanation
Fig. 1 is valve seat armature component structure sectional view;
Fig. 2 is P direction view in Fig. 1;
Fig. 3 is armature component front view;
Fig. 4 is the sectional view of bowing of Fig. 3;
Fig. 5 is valve seat construction sectional view:
Fig. 6 is the left view of Fig. 5;
Fig. 7 is valve seat armature component press-fitting tool schematic diagram;
Fig. 8 is armature component and valve seat assembling process schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 7, the spacing press-loading process equipment of a kind of light-wall pipe assembly, is made up of fixed block 6, clamping screw 7, spacing briquetting 8, pressure head 9.
Fixed block 6 is carriers of valve seat 1, and it is consistent with the profile of valve seat 1 that upper surface is designed with die cavity.The both sides of fixed block 6 are respectively designed with screw simultaneously, corresponding with the 6.2mm hole of valve seat 1, can adopt the attitude of the spacing valve seat 1 of clamping screw 7 like this, and be adjusted the direction of baffle plate 3 top thickness 1.5mm two plane of armature component 2 by clamping screw 7.Spacing briquetting 8 is made up of two symmetric bodies, integral with two screw fastenings.The function of spacing briquetting 8 has two, and one is the size during the height of its design is guaranteed to assemble between the lower plane of armature 5 and valve seat 1 upper surface, and two is clamping armature components 2.The center of present spacing briquetting 8 binding face of clamping armature menu is provided with stepped hole, wherein aperture can clamp the thin-walled diameter position of the bourdon tube 4 of armature component 2, but there is the gap of 0.1mm with thin-walled diameter, step between large aperture implements on the step between bourdon tube 4 size cylindrical, stressed place when namely combining.Pressure head 9 two functions, to spacing briquetting 8 transmission of pressure, balance spacing briquetting 8 and keep level.
As shown in Figure 2, a kind of spacing press-loading process method of light-wall pipe assembly, assembling implementation step is as follows:
Implement the assembling of valve seat armature component 2, valve seat 1 is put into the die cavity of fixed block 6, limit the position of valve seat 1 with clamping screw 7 adjustment.Spacing briquetting 8 is divided into two lobes, after the clamping wherein of the bourdon tube 4 thin-walled position of armature component 2, with screw, spacing briquetting 8 is tightened to one; Two of, baffle plate 3 top thick 1.5mm vertical with armature component 2 flats down, and holds the spacing briquetting 8 being clamped with armature component 2, two planar ends of the thick 1.5mm of baffle plate 3 is stretched into down in the center stepped hole of valve seat 1.When the 4.7mm cylindrical of the bourdon tube 4 of armature component 2 touches 4.7 hole of valve seat 1, met the requirements by two in-planes of the two clamping screw 7 regulating fender 3 thick 1.5mm in top; Move down pressure head 9 and adjust backward spacing briquetting 8 transmission of pressure of level of spacing briquetting 8 until the lower plane of spacing briquetting 8 is close to valve seat 1 upper surface; Lift pressure head 9, the spacing briquetting of righting 8, screw out two clamping screws 7, unclamp spacing briquetting 8, finally in fixed block 6, take out valve seat armature component 2, press-fit end.

Claims (3)

1. the spacing press-loading process equipment of light-wall pipe assembly, be made up of fixed block (6), clamping screw (7), spacing briquetting (8), pressure head (9), it is characterized in that: described fixed block (6) upper surface is provided with the die cavity consistent with the profile of valve seat (1), the both sides of fixed block (6) are respectively provided with a screw corresponding with the 6.2mm hole of valve seat, by the direction of baffle plate (3) top thickness 1.5mm two plane of the attitude of clamping screw (7) spacing valve seat (1) and adjustment armature component (2) in screw; Described spacing briquetting (8) is made up of two symmetric bodies, two symmetric bodies (8) are integral with two screw fastenings, for clamping armature component (2), the center of two symmetric body binding faces of spacing briquetting (8) is provided with stepped hole, pressure head (9) is connected with spacing briquetting (8), for spacing briquetting (8) transmission of pressure, balance spacing briquetting (8) keep level.
2. the spacing press-loading process equipment of light-wall pipe assembly according to claim 1, it is characterized in that: the stepped hole in described spacing briquetting (8), the gap of 0.1mm is had between the thin-walled diameter of the wherein bourdon tube (4) of aperture and armature component, during assembling light-wall pipe assembly, aperture for clamping the thin-walled diameter position of the bourdon tube (4) of armature component, on the step between the size cylindrical that the step between large aperture implements to bourdon tube (4).
3. the spacing press-loading process method of light-wall pipe assembly, it is characterized in that, the steps include: the assembling first implementing valve seat armature component (2), valve seat (1) is put into the die cavity of fixed block (6), limit the position of valve seat (1) with clamping screw (7) adjustment; Spacing briquetting (8) is divided into two lobes, after the clamping wherein of bourdon tube (4) the thin-walled position of armature component (2), with screw, spacing briquetting (8) is tightened to one; Two planar ends of baffle plate (3) the thick 1.5mm of bourdon tube (4) lower end are stretched in the center stepped hole of valve seat (1) down; When the 4.7mm cylindrical of the bourdon tube (4) of armature component (2) touches the 4.7mm hole of valve seat (1), met the requirements by two in-planes of the thick 1.5mm in two clamping screws (7) regulating fender (3) top; Move down pressure head (9) and adjust backward spacing briquetting (8) transmission of pressure of level of spacing briquetting (8) until the lower plane of spacing briquetting (8) is close to valve seat (1) upper surface; Then lift pressure head (9), the spacing briquetting of righting (8), screw out two clamping screws (7), unclamp spacing briquetting (8), finally in fixed block (6), take out valve seat armature component, press-fit end.
CN201510800974.2A 2015-11-19 2015-11-19 The spacing press-loading process equipment of thin-walled tube assembly and method Active CN105291045B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108655995A (en) * 2018-05-28 2018-10-16 中国工程物理研究院材料研究所 Thin-wall pipe is interference fitted guide-localization assembly device and its assembly method
CN109192611A (en) * 2018-10-09 2019-01-11 陕西群力电工有限责任公司 A kind of armature shaft turning tool
CN114571406A (en) * 2022-04-18 2022-06-03 四川航天烽火伺服控制技术有限公司 Double-nozzle baffle plate electro-hydraulic servo valve armature component press-fitting tool

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CN101310932A (en) * 2007-05-22 2008-11-26 上海诺玛液压系统有限公司 Assembly fixture of armature assembly for electrohydraulic servo valve
KR100913656B1 (en) * 2008-02-28 2009-08-24 현대제철 주식회사 Flow control tool for nozzle of servo valve
KR101017245B1 (en) * 2008-09-25 2011-02-25 현대제철 주식회사 Jig device for disassembling and assembling servo valve
CN204457886U (en) * 2014-12-29 2015-07-08 无锡康明斯涡轮增压技术有限公司 Turbosupercharger governor lever
CN104827441A (en) * 2015-05-08 2015-08-12 吴江市天龙机械有限公司 High-precision compression-configured device of electro-hydraulic servo valve armature component
CN204603762U (en) * 2015-05-05 2015-09-02 温州卓人汽车电控有限公司 Pump head valve component assembling frock
CN205271905U (en) * 2015-11-19 2016-06-01 上海衡拓液压控制技术有限公司 Spacing pressure equipment tooling of light -wall pipe subassembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101310932A (en) * 2007-05-22 2008-11-26 上海诺玛液压系统有限公司 Assembly fixture of armature assembly for electrohydraulic servo valve
KR100913656B1 (en) * 2008-02-28 2009-08-24 현대제철 주식회사 Flow control tool for nozzle of servo valve
KR101017245B1 (en) * 2008-09-25 2011-02-25 현대제철 주식회사 Jig device for disassembling and assembling servo valve
CN204457886U (en) * 2014-12-29 2015-07-08 无锡康明斯涡轮增压技术有限公司 Turbosupercharger governor lever
CN204603762U (en) * 2015-05-05 2015-09-02 温州卓人汽车电控有限公司 Pump head valve component assembling frock
CN104827441A (en) * 2015-05-08 2015-08-12 吴江市天龙机械有限公司 High-precision compression-configured device of electro-hydraulic servo valve armature component
CN205271905U (en) * 2015-11-19 2016-06-01 上海衡拓液压控制技术有限公司 Spacing pressure equipment tooling of light -wall pipe subassembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108655995A (en) * 2018-05-28 2018-10-16 中国工程物理研究院材料研究所 Thin-wall pipe is interference fitted guide-localization assembly device and its assembly method
CN109192611A (en) * 2018-10-09 2019-01-11 陕西群力电工有限责任公司 A kind of armature shaft turning tool
CN109192611B (en) * 2018-10-09 2023-08-18 陕西群力电工有限责任公司 Armature shaft turning tool
CN114571406A (en) * 2022-04-18 2022-06-03 四川航天烽火伺服控制技术有限公司 Double-nozzle baffle plate electro-hydraulic servo valve armature component press-fitting tool

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