CN209998818U - hydraulic clamp for thin-wall flywheel turning - Google Patents

hydraulic clamp for thin-wall flywheel turning Download PDF

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Publication number
CN209998818U
CN209998818U CN201920353861.6U CN201920353861U CN209998818U CN 209998818 U CN209998818 U CN 209998818U CN 201920353861 U CN201920353861 U CN 201920353861U CN 209998818 U CN209998818 U CN 209998818U
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China
Prior art keywords
hydraulic
cylinder
oil
mounting plate
hole
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Active
Application number
CN201920353861.6U
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Chinese (zh)
Inventor
石晓涛
史晓伟
王宏雷
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Libang Measurement and Control Equipment (Luoyang) Co Ltd
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Libang Measurement and Control Equipment (Luoyang) Co Ltd
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Priority to CN201920353861.6U priority Critical patent/CN209998818U/en
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Abstract

The utility model relates to a a hydraulically operated fixture for thin wall flywheel lathe work, including the anchor clamps body, hydraulic swivel joint, the uide bushing, the dabber, central pneumatic cylinder, the mounting panel, hydraulic pressure support cylinder floats, the linkage compresses tightly the subassembly, the connecting plate, the oil feed end divides the oil cake, the oil cake is divided to the oil return end, the mounting panel links firmly with the specific up end of anchor clamps, the uide bushing links firmly with the mounting panel, the up end coaxial be provided with dabber locating surface matched with uide bushing through-hole, hydraulic swivel joint lower part and outside hydraulic pressure supply oil pipe way hard tube connection and through hard tube fixed mounting in the inside round hole of anchor clamps, the oil feed end for each hydraulic circuit of coupling jig divides the oil cake, the oil cake is divided to the oil end and is fixed respectively on the diapire of the inside round hole of anchor clamps, this set of anchor clamps has realized the automatic style operation of thin wall flywheel class part clamping process, reduced because many times loading and.

Description

hydraulic clamp for thin-wall flywheel turning
Technical Field
The utility model relates to a machining's auxiliary fixtures specifically is kinds of hydraulic fixture that are used for thin wall flywheel lathe work.
Background
Most of blanks of the flywheel with the wall thickness smaller than 12 mm are precisely cast, when the flywheel is turned, a traditional clamping mode is a pure mechanical pressing and fixing mode, meanwhile, the inner diameter of a central hole and the inner diameter of a large hole in the flywheel cannot be clamped and machined for times, for precision cast parts, the flatness precision of a casting positioning reference is about 0.1-0.5mm, a pure mechanical pressing assembly and equal-height positioning surfaces are adopted in a traditional clamping method, the mechanical clamping and pressing structure can enable the parts to generate deformation of 0.1-0.5mm, when machining is finished, deformation generated after the clamps are loosened can be recovered, when subsequent machining is carried out, the flatness of the parts cannot be guaranteed due to deformation and alignment of the parts in the previous sequence, meanwhile, machining of the central hole and the large hole cannot be achieved due to the fact that clamping is not carried out for times, and coaxiality of the two holes is guaranteed by means of measurement in the machining process, so that workload is increased, large errors often occur in the measuring process, and control of product quality is not beneficial to the control.
Disclosure of Invention
The utility model aims at providing kind of hydraulically operated fixture that are used for thin wall flywheel lathe work, adopt hydraulic pressure to be drive unit, can realize the automatic style operation of part clamping process, both saved the time, avoided again in the transmission technology need divide the preface processing, make a round trip to load and unload part, benchmark conversion scheduling problem, reduced because the part machining error problem that loading and unloading, benchmark conversion etc. probably caused many times.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A hydraulic clamp for turning thin wall flywheel comprises a clamp body, a hydraulic rotary joint, a guide sleeve, a mandrel, a central hydraulic cylinder, a mounting plate, a floating hydraulic support cylinder, a linkage pressing component, a connecting plate, an oil inlet end oil distribution block and an oil return end oil distribution block, wherein the clamp body is a cylinder with a circular hole coaxially arranged inside, the middle of the lower end surface of the clamp body is provided with a through hole coaxial and communicated with the inner circular hole, the diameter of the through hole is smaller than that of the circular hole, the mounting plate is fixedly connected with the upper end surface of the clamp body, the middle of the mounting plate is provided with a mounting plate through hole coaxial and communicated with the circular hole, the guide sleeve is coaxial with the mounting plate through hole and fixedly connected with the mounting plate, the upper end surface of the guide sleeve is coaxially provided with a guide sleeve through hole matched with a mandrel positioning surface, the lower part of the hydraulic rotary joint is fixedly connected with an external hydraulic oil supply pipeline and fixedly arranged in the circular hole inside the clamp body through a hard pipe, the oil inlet end oil distribution block and the oil return end oil distribution block for connecting each hydraulic oil circuit of the clamp are respectively fixed on the bottom wall of the cylinder body of the cylinder, the connecting plate is fixedly connected with the upper end surface of the floating hydraulic rotary joint of the hydraulic cylinder, the floating hydraulic cylinder is fixedly connected with the upper end surface of the floating support cylinder, the floating piston rod of the floating cylinder, the floating hydraulic cylinder, the floating cylinder is provided with the three sets of the upper end surface of the floating cylinder, the.
The linkage pressing assembly is composed of a fixed block, hinged lug plates, a lever arm and a pressing oil cylinder, wherein the fixed block is arranged on the upper end face of the mounting plate, the hinged lug plates are symmetrically arranged on the upper parts of two sides of the fixed block and hinged with the tail end of the lever arm through the hinged lug plates, the middle part of the lever arm is hinged with the end of a piston rod of the pressing oil cylinder through a hinged plate, and a cylinder body of the pressing oil cylinder is fixed on the mounting plate; the front end of the lever arm is provided with a fixed claw used for pressing the part.
The side wall of the cylinder of the clamp body is equally provided with rectangular grooves communicated with the inner round hole.
The hole opening of the mounting plate through hole, which is positioned on the upper end face, is coaxially provided with a counter bore, and the inner diameter of the counter bore is in clearance fit with the outer diameter of the guide sleeve.
The outer diameter of the upper end of the cylinder body of the central hydraulic cylinder is in clearance fit with the through hole of the mounting plate.
The lower end of the positioning surface of the mandrel is also provided with an annular step for limiting the mandrel to be separated from the positioning sleeve.
The oil inlet end oil distribution block and the oil return end oil distribution block are 1-path and 3-path oil circuit integrated blocks.
The principle of the utility model is that the central hydraulic cylinder drives the mandrel to realize the central positioning of workpiece clamping, then the hydraulic drive linkage compresses the assembly to realize the positioning of the workpiece, and the floating supporting cylinder supports the datum positioning surface of the part to pre-tighten the part up and down, at the moment, the central hydraulic cylinder drives the mandrel to withdraw, so that times clamping and processing of the central hole and the inner hole can be realized, the coaxiality can be ensured, meanwhile, the floating supporting cylinder at the lower part of the part is floating supporting, the pressure of the hydraulic unit can be set through setting the pressure of the hydraulic unit, the back of the part is supported and pre-tightened, and the flexible characteristic is realized, the deformation caused by overlarge pressing force caused by the positioning datum planeness error of the rigid supporting part is avoided, finally, each hydraulic oil circuit of the hydraulic system can be subjected to pressure configuration through the oil inlet and the oil return distribution block, the purpose of pressure difference type compression and pre-tightening generated by the front linkage compression and the floating supporting is realized, and the action of automatic telescopic.
The utility model has the advantages that the clamp has compact structure, realizes the automatic body type operation in the thin-wall flywheel part clamping process, saves time, simultaneously saves the problems of needing to process in sequence, loading and unloading parts back and forth, and reference conversion and the like in the transmission process, and reduces the problem of part processing errors possibly caused by multiple loading and unloading, reference conversion and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention without linkage pressing assembly.
Fig. 2 is a front view of the overall structure of the present invention.
Fig. 3 is a perspective view of the present invention.
In the figure, 1, a fixture body, 2, a hydraulic rotary joint, 3, a guide sleeve, 4, a mandrel, 5, a central hydraulic cylinder, 6, a mounting plate, 7, a floating hydraulic supporting cylinder, 8, a connecting plate, 9, an oil inlet end oil distribution block, 10 an oil return end oil distribution block, 11, a part, 12, a fixing block, 13, a hinge lug plate, 14, a lever arm, 15, a pressing oil cylinder, 16 and a hinge plate.
Detailed Description
The present invention will be described in further detail in with reference to the accompanying drawings.
As shown in fig. 1 and 2, hydraulic clamps for thin-wall flywheel turning include a clamp body 1, a hydraulic rotary joint 2, a guide sleeve 3, a mandrel 4, a central hydraulic cylinder 5, a mounting plate 6, a floating hydraulic support cylinder 7, a linkage pressing assembly, a connecting plate 8, an oil inlet end oil distribution block 9, and an oil return end oil distribution block 10, wherein the clamp body 1 is a cylinder with a circular hole coaxially formed therein, a through hole coaxial with and communicating with the internal circular hole is formed in the middle of the lower end surface of the clamp body, the diameter of the through hole is smaller than that of the circular hole, the mounting plate 6 is fixedly connected with the upper end surface of the clamp body 1, a mounting plate through hole coaxial with and communicating with the circular hole is formed in the middle of the mounting plate 6, the guide sleeve 3 is coaxial with the mounting plate through hole and is disposed in the orifice of the mounting plate through hole and is fixedly connected with the mounting plate 6, a guide sleeve through hole matched with a positioning surface of the mandrel 4 is coaxially disposed on the upper end surface of the mounting plate 3, the central hydraulic rotary joint 2 is connected with an external hydraulic oil supply hard pipe and fixedly disposed in the circular hole of the mounting plate 1 through the hydraulic rotary cylinder, the hydraulic rotary joint 6, the upper end surface of the floating hydraulic rotary cylinder 5 is fixedly connected with the hydraulic rotary joint 6, the floating hydraulic rotary cylinder, the hydraulic rotary joint 7, the hydraulic rotary cylinder is fixedly connected with the upper end of the mounting plate 6, the floating hydraulic rotary cylinder, the hydraulic rotary joint 6, the hydraulic rotary cylinder, the upper end piston rod 6, the floating hydraulic rotary joint 7, the upper end of the floating hydraulic rotary joint 6, the floating hydraulic rotary joint 6 is fixedly connected with the upper end of the floating hydraulic rotary joint 6, the hydraulic rotary cylinder, the hydraulic rotary joint 6.
The linkage pressing assembly is composed of a fixed block 12, hinged lug plates 13, a lever arm 14 and a pressing oil cylinder 15, wherein the fixed block 12 is installed on the upper end face of the installation plate 6, the hinged lug plates 13 are symmetrically arranged on the upper parts of two sides of the fixed block 12 and hinged with the tail end of the lever arm 14 through the hinged lug plates 13, the middle part of the lever arm 14 is hinged with the end of a piston rod of the pressing oil cylinder 15 through a hinged plate 16, and a cylinder body of the pressing oil cylinder 15 is fixed on the installation plate 6; the front end of the lever arm 14 is provided with a fixed claw for pressing the part.
The side wall of the cylinder of the clamp body 1 is equally provided with rectangular grooves communicated with the inner round hole.
The orifice of the mounting plate through hole on the upper end surface is coaxially provided with a counter bore, and the inner diameter of the counter bore is in clearance fit with the outer diameter of the guide sleeve 3.
The outer diameter of the upper end of the cylinder body of the central hydraulic cylinder 5 is in clearance fit with the through hole of the mounting plate.
The lower end of the positioning surface of the mandrel 4 is also provided with an annular step for limiting the mandrel 4 to be separated from the positioning sleeve.
The oil inlet end oil distribution block 9 and the oil return end oil distribution block 10 are all 1-path and 3-path oil circuit integrated blocks.
The utility model discloses a use method: the clamp is arranged on the outer end face of a lathe spindle hole, an external oil path can use an oil path of a hydraulic chuck, and an oil path matched with a hydraulic rotary joint can be independently designed, so that the external oil path is connected with the hydraulic rotary joint of the clamp through a hard pipe; when the part is installed, the hydraulic system of the fixture controls the mandrel to extend out, the part is positioned in the center hole, then the compressing assembly is linked to compress the workpiece to realize the positioning of the workpiece, the floating supporting cylinder is used for supporting the reference positioning surface of the part, the part is compressed by pre-tightening up and down, and the central hydraulic cylinder drives the mandrel to retract at the moment, so that the part is clamped.
The part of the utility model not detailed is prior art.

Claims (7)

  1. The hydraulic clamp for turning the thin-wall flywheel is characterized by comprising a clamp body, a hydraulic rotary joint, a guide sleeve, a mandrel, a central hydraulic cylinder, a mounting plate, a floating hydraulic supporting cylinder, a linkage pressing assembly, a connecting plate, an oil inlet end oil distribution block and an oil return end oil distribution block, wherein the clamp body is integrally a cylinder with a circular hole coaxially formed in the inner part, a through hole coaxial and communicated with the inner circular hole is formed in the middle of the lower end face of the clamp body, the diameter of the through hole is smaller than that of the circular hole, the mounting plate is fixedly connected with the upper end face of the clamp body, a mounting plate through hole coaxial and communicated with the circular hole is formed in the middle of the mounting plate, the guide sleeve is coaxially arranged with the mounting plate through hole and fixedly connected with the mounting plate, a guide sleeve through hole matched with a positioning face of the mandrel is coaxially formed in the upper end face of the guide sleeve, the lower part of the hydraulic rotary joint is connected with an external hydraulic oil supply pipeline hard tube and fixedly mounted in the circular hole in the clamp body through the hard tube, the oil inlet end distribution block and the oil return end distribution block and the oil distribution block are respectively fixed on the bottom wall of the circular hole in the inner hole of the clamp body and fixedly connected with the floating hydraulic cylinder, three groups of the floating hydraulic cylinder, the floating hydraulic supporting cylinder, the upper end face of the floating hydraulic cylinder is fixedly connected with the mounting plate, the floating hydraulic supporting cylinder, the floating hydraulic supporting cylinder, the upper end face of the floating hydraulic cylinder, the floating hydraulic supporting cylinder, the mounting plate, the floating hydraulic cylinder is fixedly connected with the floating hydraulic supporting cylinder, the.
  2. 2. The hydraulic clamp for turning of a thin-walled flywheel as claimed in claim 1, wherein the linkage pressing assembly comprises a fixed block, hinged lug plates, a lever arm and a pressing cylinder, wherein the fixed block is mounted on the upper end surface of the mounting plate, the hinged lug plates are symmetrically arranged on the upper portions of the two sides of the fixed block and hinged to the tail end of the lever arm through the hinged lug plates, the middle portion of the lever arm is hinged to the end of a piston rod of the pressing cylinder through the hinged plate, the cylinder body of the pressing cylinder is fixed on the mounting plate, and a fixed claw for pressing a part is arranged at the front end of the lever arm.
  3. 3. The hydraulic clamp for turning thin-walled flywheels as claimed in claim 1, wherein the side wall of the cylinder of the clamp body is equally divided into rectangular grooves communicating with the inner circular hole.
  4. 4. The hydraulic clamp for turning thin-walled flywheels as claimed in claim 1, wherein the through hole of the mounting plate is provided with a counter bore coaxially with the hole on the upper end face, and the inner diameter of the counter bore is in clearance fit with the outer diameter of the guide sleeve.
  5. 5. The hydraulic clamp for turning thin-walled flywheels as claimed in claim 1, wherein the outer diameter of the upper end of the cylinder body of the central hydraulic cylinder is in clearance fit with the through hole of the mounting plate.
  6. 6. The hydraulic clamp for turning thin-walled flywheels as claimed in claim 1, wherein the lower end of the locating surface of the mandrel is further provided with an annular step for limiting the mandrel from coming out of the locating sleeve.
  7. 7. The hydraulic clamp for thin-walled flywheel turning according to claim 1, wherein the oil inlet end oil distribution block and the oil return end oil distribution block are 1-to-3-way oil path integrated blocks.
CN201920353861.6U 2019-03-20 2019-03-20 hydraulic clamp for thin-wall flywheel turning Active CN209998818U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920353861.6U CN209998818U (en) 2019-03-20 2019-03-20 hydraulic clamp for thin-wall flywheel turning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920353861.6U CN209998818U (en) 2019-03-20 2019-03-20 hydraulic clamp for thin-wall flywheel turning

Publications (1)

Publication Number Publication Date
CN209998818U true CN209998818U (en) 2020-01-31

Family

ID=69301776

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920353861.6U Active CN209998818U (en) 2019-03-20 2019-03-20 hydraulic clamp for thin-wall flywheel turning

Country Status (1)

Country Link
CN (1) CN209998818U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113211145A (en) * 2021-05-26 2021-08-06 南京二机齿轮机床有限公司 Automatic clamping device of thin wall cylinder type part

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113211145A (en) * 2021-05-26 2021-08-06 南京二机齿轮机床有限公司 Automatic clamping device of thin wall cylinder type part

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