CN205968751U - Lever clamping device - Google Patents

Lever clamping device Download PDF

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Publication number
CN205968751U
CN205968751U CN201620949950.3U CN201620949950U CN205968751U CN 205968751 U CN205968751 U CN 205968751U CN 201620949950 U CN201620949950 U CN 201620949950U CN 205968751 U CN205968751 U CN 205968751U
Authority
CN
China
Prior art keywords
montant
screw
support
fork
depression bar
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.)
Expired - Fee Related
Application number
CN201620949950.3U
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Chinese (zh)
Inventor
陈建国
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 Yu Li Metal Technology Co Ltd
Original Assignee
Chongqing Yu Li Metal Technology 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 Yu Li Metal Technology Co Ltd filed Critical Chongqing Yu Li Metal Technology Co Ltd
Priority to CN201620949950.3U priority Critical patent/CN205968751U/en
Application granted granted Critical
Publication of CN205968751U publication Critical patent/CN205968751U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a machining instrument field, disclose a lever clamping device, it includes base, support, screw, pendulum rod, first montant, second montant and workstation has set gradually on the base, the second montant is close to first montant and keeps away from the workstation, the support links firmly with first montant is perpendicular, set up threaded hole on the support, the screw hole is vertical seting up on the support, the screw closes at threaded hole soon, the little head end of screw up, the screw microcephaly side of serving offsets there is the triangle -shaped voussoir, triangle -shaped voussoir and base sliding connection, the second montant links to each other with the pendulum rod is articulated, pendulum rod one end and triangle -shaped voussoir offset, and the pendulum rod other end is connected with the depression bar, depression bar below swing joint has the clamp plate, and it utilizes lever principle, and it is tight only to need the short stroke of tightening screw just can press from both sides the work piece. This patent application is compared with prior art, presss from both sides tight stability better, and the cost is lower.

Description

A kind of lever type clamping device
Technical field
This utility model is related to machine tools field, more particularly, to a kind of clamping device.
Background technology
In machining factory, workpiece carried out polish, cut etc. processing when, it usually needs using a kind of fixture, workpiece is solid Fixed on the table, the simplest at present and minimum mode of cost is exactly one support of setting on the table, and support is arranged There is screwed hole, then a screw is screwed on screwed hole, screw is vertically arranged in above workpiece, on the microcephaly of screw and workpiece Surface pushes against, and workpiece is limited on the table.The degree of freedom on workplace vertical direction can be limited in this way, but Often change a subjob it is necessary to rotation is a lot of encloses screw, workload is big, and efficiency comparison is low.
Therefore, the patent document of Patent No. CN201520793954.2 discloses a kind of clamping device, and it includes pedestal, Pedestal is provided with the workbench for placing workpiece to be machined, also includes screw, slide block, fork and depression bar, on described pedestal It is provided with support, support offers screwed hole, screw screws in screw thread in the hole, and slide block is slidably connected on pedestal, screw microcephaly End is pushed against with slide block end or disengages, and fork is rotatably connected on pedestal by the first pin joint, and fork lower end is engaged with slide block Transmission, upper end is relatively fixed with depression bar one end, depression bar other end workpiece pressing surface.This scheme passes through rotary screw, promotes and slides To carry driven fork to rotate, fork rotates and surface of the work is compressed by the free end of depression bar, the axial direction of screw this moment for block movement Stroke is less to get final product workpiece pressing, because the stroke before screw is less, can also continue to move ahead it is possible to carry out next time Work-sheet pressing, therefore so that the service life of screw is longer, because only need to can be by workpiece by the screw less stroke of rotation Compression, therefore work efficiency is also higher, but, this scheme also has the shortcomings that certain:1st, only utilize the free end end of depression bar Lai Workpiece pressing, because depression bar end area is little, can be only formed to workpiece and presses, and can there is the unsteady situation of Workpiece clamping, 2, This scheme adopts the engaged transmission of slide block and fork, needs using precision parts such as gear, tooth bars, cost is also higher.
Content of the invention
This utility model is intended to offer one kind can be more firm by Workpiece clamping, and the lower clamping device of cost
One of this programme lever type clamping device, including pedestal, support, screw, fork, depression bar, on described pedestal Be disposed with the first montant, the second montant and workbench, described second montant near the first montant away from workbench, described Frame is vertical with the first montant to be connected, and described support offers screwed hole, described screwed hole vertically opens up on support, described spiral shell Nail screws in screw thread in the hole, and the little head end of described screw upward, mutually has triangle voussoir above the little head end of described screw, described Triangle voussoir and pedestal are slidably connected, and described second montant is hinged and connected with fork, described fork one end and triangle voussoir Offset, the fork other end is connected with depression bar, described depression bar is fixedly connected below pressing plate.
The know-why of this programme:Workpiece is positioned on workbench, tightening screw, screw in the screwed hole of support to Upper rotation, promotes triangle voussoir upward sliding, and during upward sliding, triangle voussoir promotes fork and triangle voussoir Move upwards in the one end offseting, because fork is hinged on the second montant, the other end of therefore fork will move downward, and transports downwards Move and just promote pressing plate to be close to workpiece with depression bar, and then workpiece is clamped, because of the second montant near the first montant away from work Platform, according to lever principle, a segment distance is moved in one end that fork is offseted with triangle voussoir, the other end will move bigger away from From therefore only needing the shorter stroke of tightening screw just can be by Workpiece clamping.
The beneficial effect of this programme:1st, this programme is bigger because of the contact area of pressing plate and workpiece, can more disperse depression bar Pressure to workpiece so that whole workpiece held more firm;2nd, because this programme adopts triangle voussoir to promote fork to swing, enter And workpiece is implemented with clamping, because triangle voussoir is simple and easy to get, the gear using compared to existing technology and tooth bar cost are lower.
Further, described support is bolted on the first montant.After a protracted use, the screw thread on support After repeatedly the screwing of Kong Jing and screw, the female thread of screw thread in the hole may damage, and support is bolted in the first montant On, after screwed hole damages, support can be disassembled replacing.
Further, described fork and the contact surface of triangle voussoir are arc surface.Contact surface is in circular arc so that in fork During slip relative with triangle voussoir, it is changed into rolling friction from sliding friction, reduce between fork and triangle voussoir Frictional dissipation.
Further, described triangle voussoir and the first montant are slidably connected by dovetail groove.Dovetail groove can be by triangle Voussoir slides and is fixed on the first montant, makes triangle voussoir more stable when sliding on the first montant, is not in sliding inclined Situation.
Further, described depression bar and fork are hinged and connected.When moving upwards in the one end promoting fork in triangle voussoir, pendulum The other end of bar moves downward, and now fork and workpiece are provided with certain angle, if it does, depression bar promotes pressing plate to be pressed in workpiece On, pressing plate and workpiece there has also been certain angle, not high to the stability of Workpiece clamping, and depression bar and fork are hinged and connected, then When fork has certain angle with workpiece, depression bar passes through to swing, and depression bar equally can be made vertical with workpiece, makes pressing plate and workpiece face Contact, improves the clip stability to workpiece.
Brief description
Fig. 1 is a kind of structural representation of this utility model lever type clamping device embodiment.
Specific embodiment
Below by specific embodiment, this utility model is described in further detail:
Reference in Figure of description includes:Pedestal 1, the first montant 2, the second montant 3, workbench 4, support 5, spiral shell Nail 6, triangle voussoir 7, fork 8, depression bar 9, pressing plate 10, bolt 11, workpiece 12.
Shown in embodiment basic reference Fig. 1:One of this programme lever type clamping device, including pedestal 1, support 5, spiral shell Nail 6, fork 8, pedestal 1 are welded with the first montant 2, the second montant 3 and workbench 4 from left to right successively, the second montant 3 is close First montant 2 is vertically arranged with the first montant 2 away from workbench 4, support 5, and is connected using bolt 11, and support 5 offers Screwed hole, screwed hole vertically opens up on support 5, and screw 6 screws in screw thread in the hole, and upward, screw 6 is little for the little head end of screw 6 Triangle voussoir 7 is mutually had, triangle voussoir 7 is slidably connected by dovetail groove with pedestal 1, the second montant 3 upper end above head end It is hinged and connected with fork 8, the face that the left end of fork 8 is offseted with triangle voussoir 7 is in circular arc, fork 8 right-hand member is hinged with depression bar 9, depression bar 9 lower end has been welded with pressing plate 10.
During enforcement, workpiece 12 is positioned on workbench 4, tightening screw 6, screw 6 revolves in the screwed hole of support 5 upwards Turn, promote triangle voussoir 7 upward sliding, because triangle voussoir 7 is slidably connected with the first montant 2 dovetail groove, during slip more Stable, will not slide partially, during upward sliding, triangle voussoir 7 promotes fork 8 and triangle voussoir 7 to triangle voussoir 7 Move upwards in the circular arc end offseting, because fork 8 is hinged on the second montant 3, the right-hand member of therefore fork 8 will move downward, Move downward and just promote pressing plate 10 to be close to workpiece 12 with the depression bar 9 being hinged on fork 8 right-hand member, and then workpiece 12 is clamped, Because pressing plate 10 is bigger with the contact area of workpiece 12, can more disperse depression bar 9 to the pressure of workpiece 12 so that whole workpiece 12 More firm by holding, because of the second montant 3 near the first montant 2 away from workbench 4, due to lever principle, the left end of fork 8 moves One segment distance, fork 8 right-hand member will move bigger distance, therefore only needs the shorter stroke of tightening screw 6 just can be by workpiece 12 Clamping.
After a protracted use, the screwed hole on support 5 through and repeatedly the screwing of screw 6 after, the interior spiral shell of screw thread in the hole Stricture of vagina may damage, and support 5 is connected on the first montant 2 by bolt 11, after screwed hole damages, can dismantle support 5 Get off to change.
Above-described is only embodiment of the present utility model, the general knowledge here such as known concrete structure and characteristic in scheme Excessively describe.It should be pointed out that for a person skilled in the art, in the premise without departing from this utility model structure Under, some deformation can also be made and improve, these also should be considered as protection domain of the present utility model, and these are all without impact Effect and practical applicability that this utility model is implemented.This application claims protection domain should be with the content of its claim It is defined, specific embodiment in description etc. records the content that can be used for explaining claim.

Claims (5)

1. a kind of lever type clamping device, including pedestal, support, screw, fork, depression bar, described support offers screwed hole, Described screw screws in screw thread in the hole it is characterised in that being disposed with the first montant, the second montant and work on described pedestal Platform, the distance of described second montant to the first montant is less than the second montant to distance, described support and first montant of workbench Be fixedly connected, described screwed hole vertically opens up on support, the little head end of described screw upward, phase above the little head end of described screw Have triangle voussoir, described triangle voussoir is slidably connected with pedestal, and described second montant is hinged and connected with fork, described pendulum Bar one end is offseted with triangle voussoir, and the fork other end is connected with depression bar, and described depression bar is fixedly connected below pressing plate.
2. a kind of lever type clamping device according to claim 1 it is characterised in that:Described support is bolted On first montant.
3. a kind of lever type clamping device according to claim 2 it is characterised in that:Described fork and triangle voussoir Contact surface is arc surface.
4. a kind of lever type clamping device according to claim 3 it is characterised in that:Described triangle voussoir and first erects Bar is slidably connected by dovetail groove.
5. a kind of lever type clamping device according to claim 4 it is characterised in that:Described depression bar hinged phase with fork Even.
CN201620949950.3U 2016-08-26 2016-08-26 Lever clamping device Expired - Fee Related CN205968751U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620949950.3U CN205968751U (en) 2016-08-26 2016-08-26 Lever clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620949950.3U CN205968751U (en) 2016-08-26 2016-08-26 Lever clamping device

Publications (1)

Publication Number Publication Date
CN205968751U true CN205968751U (en) 2017-02-22

Family

ID=58035287

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620949950.3U Expired - Fee Related CN205968751U (en) 2016-08-26 2016-08-26 Lever clamping device

Country Status (1)

Country Link
CN (1) CN205968751U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111618465A (en) * 2020-05-25 2020-09-04 吴斌 Diesel vehicle oil tank clamping and welding equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111618465A (en) * 2020-05-25 2020-09-04 吴斌 Diesel vehicle oil tank clamping and welding equipment
CN111618465B (en) * 2020-05-25 2022-04-08 淮北冬傲信息技术有限公司 Diesel vehicle oil tank clamping and welding equipment

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170222

Termination date: 20170826