CN101200037B - Adjustable hydraulic frock - Google Patents

Adjustable hydraulic frock Download PDF

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Publication number
CN101200037B
CN101200037B CN2006101472950A CN200610147295A CN101200037B CN 101200037 B CN101200037 B CN 101200037B CN 2006101472950 A CN2006101472950 A CN 2006101472950A CN 200610147295 A CN200610147295 A CN 200610147295A CN 101200037 B CN101200037 B CN 101200037B
Authority
CN
China
Prior art keywords
oil cylinder
supporting seat
tensioner
bracing
spring
Prior art date
Application number
CN2006101472950A
Other languages
Chinese (zh)
Other versions
CN101200037A (en
Inventor
刘昌福
刘鹤年
Original Assignee
上海培通机械有限公司
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Filing date
Publication date
Application filed by 上海培通机械有限公司 filed Critical 上海培通机械有限公司
Priority to CN2006101472950A priority Critical patent/CN101200037B/en
Publication of CN101200037A publication Critical patent/CN101200037A/en
Application granted granted Critical
Publication of CN101200037B publication Critical patent/CN101200037B/en

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Abstract

Disclosed is an adjustable hydraulic fixture, which is structured by an installation platform and 18 supporting devices. The supporting devices are arranged on the installation platform along the circumference by equal circumference divisions; the supporting device is structured by each free end bearing seat which is equipped with an elevating seat; the elevating seat is equipped with a lifting poker; both sides of the elevating seat are equipped with an stretching oil cylinder and a pressure-keep cylinder, etc. The piston rod of the stretching oil cylinder is equipped with a pressure spring. The front end of the piston rod of the stretching oil cylinder is equipped with a stretching claw; the pressure-keep oil cylinder is connected with an hydraulic oil-channel connector through a pipeline. Eighteen hydraulic equipments are arranged in the fixture structure as the supporting points in the invention, and the clamping force at each point can be regulated to equal by hydraulic system; meanwhile, a pressure spring is arranged in hydraulic equipment for workpiece pre-fixing, and the parts deformation is avoided. The invention has the advantages of convenient installation and regulation, and can improve the clamping precision and reliability of the workpiece.

Description

A kind of adjustable hydraulic frock
Technical field:
The present invention relates to a kind of clamping device of workpiece.
Background technology:
In the prior art, workpiece generally adopts " 6 rules " to carry out clamping location adding man-hour, yet there is the situation of rigidity deficiency in some workpiece, especially large-scale workpiece, conjuncted bearing arrangement as CT scanner is a sheet member, workpiece size is big, complex structure, with location of the prior art, support technology can not support this part to process smoothly, as uses traditional pressing plate frock to fix, and occurs the clamping workpiece unbalance stress easily, and workpiece easily produced bounce-back after completion of processing was loosened pressing plate, cause overflowing of size or form and position tolerance, therefore needing increases the strong point, but is difficult to guarantee that the support force of all strong points all equates.
Summary of the invention:
The purpose of this invention is to provide a kind of adjustable hydraulic frock, described this adjustable hydraulic frock will solve workpiece thin plate unfavorable technical problem of clamping location situation when processing of rigidity deficiency in the prior art.
This adjustable hydraulic frock of the present invention, constitute by mounting platform and a plurality of bracing or strutting arrangement, wherein, the number of described bracing or strutting arrangement is 18, any one bracing or strutting arrangement all is fixedly installed on the described mounting platform, bracing or strutting arrangement along the circumferential direction circumference in equal parts is arranged, any one bracing or strutting arrangement all each free supporting seat constitutes, described supporting seat is fixedlyed connected with mounting platform by securing member, the supporting seat upside is provided with an elevating bracket, be provided with a vertical through hole in the elevating bracket, be provided with an elevating lever in the vertical through hole, the lower end of elevating lever is connected with supporting seat, one side of elevating bracket is connected with a tensioner oil cylinder mount pad, be provided with a tensioner oil cylinder in the tensioner oil cylinder mount pad, the opposite side of elevating bracket is provided with a pressurize oil cylinder, the piston rod of the piston rod of described tensioner oil cylinder and pressurize oil cylinder is provided with in opposite directions, the upper cover of piston rod of tensioner oil cylinder is provided with a stage clip, the front end of the piston rod of tensioner oil cylinder is provided with the tensioner pawl, and the pressurize oil cylinder all is connected on the hydraulic circuit linker by pipeline.
Further, be provided with the locating slot that the cross section is inverted T shape in the described supporting seat, be provided with a spring base in the locating slot, be provided with a spring conductor rod in the described spring base, be arranged with spring on the described spring conductor rod, be provided with axial hole in the described elevating lever, described spring conductor rod and spring are positioned at the axial hole of elevating lever, one side of described elevating bracket is provided with contiguous block, the side of described contiguous block is provided with screw, described screw be axially perpendicular to spring conductor rod, be provided with holding screw in the screw, the upside setting of contiguous block is fixed with guide rail, and the outside of guide rail is fixedly connected with pressurize oil cylinder end plate, and pressurize oil cylinder end plate is fixedlyed connected with the pressurize oil cylinder.
Further, be provided with connecting hole in the described supporting seat.Described securing member is fixedlyed connected supporting seat by connecting hole with mounting platform.
Further, the upper end of described elevating lever is provided with a top screw.
Operation principle of the present invention is: mounting platform is installed on the processing platform.18 tensioner oil cylinders all are connected with hydraulic system.During the location, the hydraulic pressure of control tensioner oil cylinder only utilizes the pressure and the workpiece of the stage clip on the tensioner oil cylinder piston bar to keep in touch, and this moment, support force was not enough to change the workpiece rigidity, and therefore can get rid of part deformation may.Adding man-hour, increasing pressure to the pressurize oil cylinder, making all strong points that consistent support force is provided by a hydraulic system.After the pressurize oil cylinder reaches goal pressure, provide pressure to the tensioner oil cylinder, hydraulic pressure is with the design pressure of 1.5MPa, arrive at each tensioner oil cylinder by linker, finally 18 reach maximum clamping force Fmax=1900N with the tensioner pawl that workpiece directly contacts, and 18 points can provide consistent clamping force simultaneously.Afterwards, after checking that the hydraulic clamping system pressure gauge reading reaches the technological requirement reading, clamp, lock, and open the ftercompction system, guarantee the workpiece stress equalization, prevent workpiece deformation.When final fine finishining, the cutting force of Z direction and directions X all is lower than roughing, by the HYDRAULIC CONTROL SYSTEM platform, loosen former 18 clamping cylinders earlier, promptly discharge roughing stress, former ftercompction oil piping system also unloads 10 seconds to guarantee that hydraulic system pressure discharges, keep the ftercompction oil circuit of hydraulic system pressure that hydraulic pressure is provided when adopting former roughing subsequently, the clamp power and the distortional stress that are subjected to when alleviating workpiece fine finishining, prevent the distortion after the workpiece completion of processing is withdrawn anchor clamps, finally reached requirement on machining accuracy.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention is provided with 18 hydraulic means as the strong point in the frock clamp structure, the active force by each strong point place of regulation of hydraulic system so that each point place clamping power equate, simultaneously, stage clip predetermined fixed workpiece is set in hydraulic means, can prevent part deformation.The present invention's installation, easy to adjust can improve clamping workpiece precision and reliability.
Description of drawings:
Fig. 1 is the structural representation of a kind of adjustable hydraulic frock of the present invention.
Fig. 2 is the perspective exploded view of the bracing or strutting arrangement in a kind of adjustable hydraulic frock of the present invention.
Fig. 3 is the cross-sectional view of the bracing or strutting arrangement in a kind of adjustable hydraulic frock of the present invention.
The specific embodiment:
As Fig. 1, Fig. 2 and shown in Figure 3, adjustable hydraulic frock of the present invention is made of mounting platform 1 and a plurality of bracing or strutting arrangement 2, wherein, the number of described bracing or strutting arrangement 2 is 18, any one bracing or strutting arrangement 2 all is fixedly installed on the described mounting platform 1, bracing or strutting arrangement 2 along the circumferential direction circumference in equal parts is arranged, any one bracing or strutting arrangement 2 all each free supporting seat 7 constitutes, described supporting seat 7 is fixedlyed connected with mounting platform 1 by securing member, supporting seat 7 upsides are provided with an elevating bracket 6, be provided with a vertical through hole in the elevating bracket 6, be provided with an elevating lever 5 in the vertical through hole, the lower end of elevating lever 5 is connected with supporting seat 7, one side of elevating bracket 6 is connected with a tensioner oil cylinder mount pad 13, be provided with a tensioner oil cylinder 4 in the tensioner oil cylinder mount pad 13, the opposite side of elevating bracket 6 is provided with a pressurize oil cylinder 3, the piston rod of the piston rod of described tensioner oil cylinder 4 and pressurize oil cylinder 3 is provided with in opposite directions, the upper cover of piston rod of tensioner oil cylinder 4 is provided with a stage clip 16, the front end of the piston rod of tensioner oil cylinder 4 is provided with tensioner pawl 19, and pressurize oil cylinder 3 all is connected on the hydraulic circuit linker by pipeline.
Further, be provided with the locating slot that the cross section is inverted T shape in the described supporting seat 7, be provided with a spring base 9 in the locating slot, be provided with a spring conductor rod in the described spring base 9, be arranged with spring 15 on the described spring conductor rod, be provided with axial hole in the described elevating lever 5, described spring conductor rod and spring 15 are positioned at the axial hole of elevating lever 5, one side of described elevating bracket 6 is provided with contiguous block 10, the side of described contiguous block 10 is provided with screw 17, described screw 17 be axially perpendicular to spring conductor rod, be provided with holding screw 18 in the screw 17, the upside setting of contiguous block 10 is fixed with guide rail 11, and the outside of guide rail 11 is fixedly connected with pressurize oil cylinder end plate 12, and pressurize oil cylinder end plate 12 is fixedlyed connected with pressurize oil cylinder 3.
Further, be provided with connecting hole 8 in the described supporting seat 7.
Further, the upper end of described elevating lever 5 is provided with a top screw 14.
In the process of this present invention's a embodiment, workpiece 20 is fixed between 18 clamping devices 2, and the bottom of workpiece 20 is supported by top screw 14, and the inboard of workpiece 20 is clamped by tensioner pawl 19.

Claims (4)

1. adjustable hydraulic frock, constitute by mounting platform and a plurality of bracing or strutting arrangement, it is characterized in that: the number of described bracing or strutting arrangement is 18, any one bracing or strutting arrangement all is fixedly installed on the described mounting platform, bracing or strutting arrangement along the circumferential direction circumference in equal parts is arranged, any one bracing or strutting arrangement all each free supporting seat constitutes, described supporting seat is fixedlyed connected with mounting platform by securing member, the supporting seat upside is provided with an elevating bracket, be provided with a vertical through hole in the elevating bracket, be provided with an elevating lever in the vertical through hole, the lower end of elevating lever is connected with supporting seat, one side of elevating bracket is connected with a tensioner oil cylinder mount pad, be provided with a tensioner oil cylinder in the tensioner oil cylinder mount pad, the opposite side of elevating bracket is provided with a pressurize oil cylinder, the piston rod of the piston rod of described tensioner oil cylinder and pressurize oil cylinder is provided with in opposite directions, the upper cover of piston rod of tensioner oil cylinder is provided with a stage clip, the front end of the piston rod of tensioner oil cylinder is provided with the tensioner pawl, and the pressurize oil cylinder all is connected on the hydraulic circuit linker by pipeline.
2. adjustable hydraulic frock as claimed in claim 1, it is characterized in that: be provided with the locating slot that the cross section is inverted T shape in the described supporting seat, be provided with a spring base in the locating slot, be provided with a spring conductor rod in the described spring base, be arranged with spring on the described spring conductor rod, be provided with axial hole in the described elevating lever, described spring conductor rod and spring are positioned at the axial hole of elevating lever, one side of described elevating bracket is provided with contiguous block, the side of described contiguous block is provided with screw, described screw be axially perpendicular to spring conductor rod, be provided with holding screw in the screw, the upside setting of contiguous block is fixed with guide rail, and the outside of guide rail is fixedly connected with pressurize oil cylinder end plate, and pressurize oil cylinder end plate is fixedlyed connected with the pressurize oil cylinder.
3. adjustable hydraulic frock as claimed in claim 1 is characterized in that: be provided with connecting hole in the described supporting seat, described securing member is fixedlyed connected supporting seat by connecting hole with mounting platform.
4. adjustable hydraulic frock as claimed in claim 1 is characterized in that: the upper end of described elevating lever is provided with a top screw.
CN2006101472950A 2006-12-14 2006-12-14 Adjustable hydraulic frock CN101200037B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2006101472950A CN101200037B (en) 2006-12-14 2006-12-14 Adjustable hydraulic frock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2006101472950A CN101200037B (en) 2006-12-14 2006-12-14 Adjustable hydraulic frock

Publications (2)

Publication Number Publication Date
CN101200037A CN101200037A (en) 2008-06-18
CN101200037B true CN101200037B (en) 2010-12-15

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358144B (en) * 2012-04-05 2015-11-18 中国石油天然气集团公司 Heavy caliber hot-bending bends beveling machine internal expansion type clamp system
CN102785105A (en) * 2012-07-23 2012-11-21 太仓市旭达机械设备有限公司 Motor-driven workbench
CN105014441B (en) * 2014-04-24 2017-12-08 上海宏功机械科技有限公司 A kind of chucking power observes direct and adjustable hydraulically operated fixture
CN105014397B (en) * 2014-04-29 2017-06-16 中国有色(沈阳)冶金机械有限公司 The device of overall processing piston concentric circle arc plane
CN104209791A (en) * 2014-08-15 2014-12-17 安徽省巢湖市宏顺机械铸造有限公司 Clamping tool for processing wheel hub workpiece
CN105686603B (en) * 2016-01-13 2017-05-10 东莞市莞信企业管理咨询有限公司 Handicraft fixed clamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2115861U (en) * 1992-03-12 1992-09-16 瓦房店机床厂技术开发公司 Clamping device for producing cover of electric machinary
US5957443A (en) * 1998-07-20 1999-09-28 Vektek, Inc. Hydraulic work support
CN2774673Y (en) * 2005-01-19 2006-04-26 中国科学院金属研究所 Thermal hydraulic forming mould unit for magnesium alloy plate
CN2775210Y (en) * 2005-01-05 2006-04-26 上海市机械施工有限公司 Adjustable control hydraulic support device for building structure construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2115861U (en) * 1992-03-12 1992-09-16 瓦房店机床厂技术开发公司 Clamping device for producing cover of electric machinary
US5957443A (en) * 1998-07-20 1999-09-28 Vektek, Inc. Hydraulic work support
CN2775210Y (en) * 2005-01-05 2006-04-26 上海市机械施工有限公司 Adjustable control hydraulic support device for building structure construction
CN2774673Y (en) * 2005-01-19 2006-04-26 中国科学院金属研究所 Thermal hydraulic forming mould unit for magnesium alloy plate

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