CN205325451U

CN205325451U - Isolator overcoat air jig

Info

Publication number: CN205325451U
Application number: CN201520994083.0U
Authority: CN
Inventors: 游宏亮
Original assignee: Chongqing Huayang Isolator Manufacturing Co Ltd
Current assignee: Chongqing Huayang Isolator Manufacturing Co Ltd
Priority date: 2015-12-05
Filing date: 2015-12-05
Publication date: 2016-06-22
Anticipated expiration: 2025-12-05

Abstract

The utility model discloses an isolator overcoat air jig relates to anchor clamps, isolator overcoat air jig includes base, clamp part and pneumatic control system, and the clamp part is connected with pneumatic control system, the clamp part includes clamping jaw and pneumatic ejector pin, the clamp part is equipped with three clamping jaw at least, and every clamping jaw corresponds a pneumatic ejector pin, be fixed with on the base with the articulated seat of clamping jaw one -to -one, articulated seat along circumference evenly distributed on the base, the clamping jaw is the segment of a circle, and pneumatic ejector pin fixed mounting is in the upper end of clamping jaw, and the middle part of clamping jaw is articulated with articulated seat, and the lower extreme of clamping jaw is the exposed core, and the exposed core is provided with the arch, pneumatic ejector pin is controlled by pneumatic control system. When these anchor clamps press from both sides tight work piece, because the upper end of work piece and lower extreme all have the stress point, can prevent effectively consequently that the work piece is not hard up, the while can prevent from the tight work piece of inside outside clamp simultaneously of work piece that the work piece is crooked.

Description

A kind of isolator overcoat air-actuated jaw

Technical field

This utility model relates to a kind of fixture, particularly relates to a kind of isolator overcoat air-actuated jaw。

Background technology

When automobile engine starting, first being driven the flywheel turns of electromotor by starter, then electromotor could start；But after engine ignition starts, the rotating speed of its flywheel can surmount rapidly the rotating speed of starter, the band mechanical starter reverse in order to avoid electromotor rotates, therefore between electromotor and starter, it is provided with isolator, it is again freewheel clutch, therefore, exceed the rotating speed of starter at the rotating speed of electromotor after, isolator is by separated, thus avoiding driven by engine starter to rotate。

Electric motor car is also equipped with isolator equally；When electric motor car is by top gear shift to low gear, high gear has just been departed from due to output shaft, so output shaft still has a higher rotating speed, therefore after output shaft is connected with low-speed gear, make output shaft and low-speed gear have an identical speed to be accomplished by output shaft and have a moderating process, otherwise output shaft will reversely drive low-speed gear to rotate, and is therefore also provided with isolator in electric motor car, it is prevented that output shaft reversely drives low-speed gear。

Existing a kind of isolator is mainly made up of overcoat, cam, roller and stage clip；Owing to assembling needs, the endoporus sidewall being generally required for overcoat is coordinated with roller is polished, when now the endoporus of overcoat being polished, it is all generally the outer peripheral face directly directly pushing up pressure overcoat with Pneumatic top bar, to realize clamping, although this kind of method is simple, but easily there is crooked situation in overcoat, the stress point of overcoat is less simultaneously, and owing to adding the vibration in man-hour, workpiece also easily loosens。

Utility model content

This utility model is intended to provide a kind of isolator overcoat air-actuated jaw, to increase the stress point of workpiece, it is prevented that workpiece loosens, simultaneously clamps on workpiece from the internal-external of workpiece, to prevent workpiece crooked simultaneously。

Base case isolator overcoat air-actuated jaw of the present utility model, including pedestal, clamping section and pneumatic control system, described clamping section is connected with described pneumatic control system；Described clamping section includes jaw and Pneumatic top bar；Described clamping section is at least provided with three described jaws, and the corresponding described Pneumatic top bar of each jaw；Being fixed with on described pedestal and described jaw hinged seat one to one, hinged seat is uniformly distributed circumferentially on pedestal；Arcuately, described Pneumatic top bar is fixedly mounted on the upper end of described jaw to described jaw, and the middle part of jaw is hinged with described hinged seat, and the lower end of jaw is bare terminal end, and bare terminal end is provided with projection；Described Pneumatic top bar is by pneumatic control system control。

In this base case, workpiece is positioned at above the bare terminal end of jaw, and between each push rod；Pneumatic top bar is controlled by pneumatic control system, the side of pressure workpiece upper end, Pneumatic top bar top can be made, the upper end of jaw is subject to reciprocal active force simultaneously, therefore the bare terminal end of jaw will be rotated up, to clamp workpiece from the endoporus of workpiece lower end with the projection of this jaw bare terminal end, Pneumatic top bar then clamps workpiece from the outside of workpiece upper end。

In this programme, owing to each Pneumatic top bar is by pneumatic control system control, so Pneumatic top bar action simultaneously can be made by pneumatic control system, so that the stress that workpiece is in clamped process can be uniformly distributed, less with this workpiece shift in position in clamping process, the location of workpiece can be conducive to；Additionally workpiece is in clamped process, and the bare terminal end of jaw also can upwards push up pressure workpiece, will be adjacent on jaw with the lower surface of this workpiece, thus realizing the axial location to workpiece。

This programme simultaneously clamps on workpiece from the inside and outside of workpiece by jaw and push rod simultaneously, and therefore the stress point of workpiece increases, so can prevent workpiece from loosening preferably；Simultaneously push rod clamping is the upper end of workpiece, and jaw clamping is the lower end of workpiece, and when workpiece is crooked, Pneumatic top bar and jaw coordinate workpiece is had corrective action, therefore have good positioning action。

Preferred version one, as the further optimization to base case, described clamping section is only provided with three described jaws；Owing to the projection of jaw bare terminal end is to clamp workpiece from the endoporus of workpiece lower end, because of limited space, so jaw is unsuitable too much。

Preferred version two, as the further optimization to preferred version one, the edge of described jaw bare terminal end projection is provided with detection hole, and is provided with the detection hole connection on trachea and three jaws, described tracheal strips has passed into gases at high pressure, is also associated with Pressure gauge and pressure-control valve on trachea；

Owing to the schedule requirement of workpiece is higher, workpiece can because by small iron filings jack-up, and occur small crooked sometimes, but is difficult to judge small crooked of workpiece by naked eyes, therefore detects hole preferably in being provided with on jaw；When behind the location that fixture completes workpiece, the lower surface of workpiece will block detection hole completely, then Pressure gauge is up to preset value, if workpiece occurs crooked in clamping process, then the lower surface of workpiece will be unable to block detection hole completely, thus Pressure gauge is then unable to reach preset value, it is necessary to workpiece is clamped again。In this is preferred, when workpiece blocks detection hole, trachea is completely enclosed, then pressure-control valve can control endotracheal pressure not over preset value, thus damaging trachea。

Preferred version three, as the further optimization to base case, is provided with extension spring between bare terminal end and the pedestal of described jaw, and also threaded limited location pin on described pedestal；The extension spring of this optimization can make jaw self-return, consequently facilitating workpiece loading and unloading, position-limitting pin can control the position after jaw return, and position-limitting pin is threaded on pedestal and is conducive to regulating spacing height, is simultaneously also beneficial to dismounting and changes。

Accompanying drawing explanation

Fig. 1 is the structural representation of isolator overcoat air-actuated jaw embodiment。

Detailed description of the invention

Below by detailed description of the invention, this utility model is described in further detail:

Accompanying drawing labelling in Figure of description includes: pedestal 1, clamping section 2, workpiece 3, hinged seat 11, jaw 21, Pneumatic top bar 22, trachea 23, Pressure gauge 24, extension spring 25, position-limitting pin 26, projection 211, detection hole 212。

Embodiment is substantially as shown in Figure 1: isolator overcoat air-actuated jaw includes pedestal 1 and clamping section 2；Clamping section 2 includes jaw 21 and Pneumatic top bar 22；Wherein clamping section 2 has three jaws 21 and three Pneumatic top bars 22, and is welded with three hinged seats 11 corresponding to jaw 21 on pedestal 1, and hinged seat 11 is uniformly distributed circumferentially on pedestal 1。As it can be seen, jaw 21 is arcuately, Pneumatic top bar 22 is fixedly mounted on the upper end of jaw 21, and the middle part of jaw 21 is hinged with hinged seat 11, and the lower end of jaw 21 is bare terminal end, and bare terminal end is provided with protruding 211。And each Pneumatic top bar 22 all has trachea to be attached thereto, trachea is picked out by pneumatic control system, and pneumatic control system includes air compressor, and trachea is connected with the gas outlet of air compressor, and is also associated with pressure-control valve and reversal valve on trachea；It is additionally provided with a detection hole 212 at the edge of jaw 21 bare terminal end projection 211, and on three jaws 21, detection hole 212 all connects with trachea 23, has passed into gases at high pressure, and be also associated with Pressure gauge 24 and pressure-control valve on trachea 23 in trachea 23。

As it is shown in figure 1, workpiece 3 is positioned at above the bare terminal end of jaw 21, and between each push rod；Owing to each Pneumatic top bar 22 controls by same pneumatic control system, so push rod action simultaneously can be made by pneumatic control system, so that the stress that workpiece 3 is in clamping process can be uniformly distributed, less with this workpiece 3 shift in position in clamping process, the location of workpiece 3 can be conducive to；When the side of pressure workpiece 3 upper end, Pneumatic top bar 22 top, the upper end of jaw 21 is then subject to reciprocal active force, then the bare terminal end of jaw 21 will be rotated up, but owing to workpiece 3 is had position-limiting action by the projection 211 of jaw 21 bare terminal end, therefore when, after protruding 211 inwalls being adjacent to workpiece 3 lower end, the upper end of workpiece 3 by Primary Location, but will be pressed along with push rod continues top in the lower end of workpiece 3, workpiece 3 will be had relatively positive interaction, until completing the location to workpiece 3；After fixture completes the location to workpiece 3, the lower surface of workpiece 3 will block detection hole 212 completely, then Pressure gauge 24 is up to preset value, if workpiece 3 occurs crooked in clamping process, then the lower surface of workpiece 3 will be unable to block detection hole 212 completely, thus Pressure gauge 24 is then unable to reach preset value, it is necessary to workpiece 3 is clamped again。

As shown in Figure 1, jaw 21 self-return for the ease of workpiece loading and unloading 3, between the bare terminal end and pedestal 1 of jaw 21, it is also provided with extension spring 25, thus can be made, and also threaded limited location pin 26 on pedestal 1, position-limitting pin 26 can control the position after jaw 21 return。

Claims

1. an isolator overcoat air-actuated jaw, including pedestal, clamping section and pneumatic control system, described clamping section is connected with described pneumatic control system；It is characterized in that, described clamping section includes jaw and Pneumatic top bar；Described clamping section is at least provided with three described jaws, and the corresponding described Pneumatic top bar of each jaw；Being fixed with on described pedestal and described jaw hinged seat one to one, hinged seat is uniformly distributed circumferentially on pedestal；Arcuately, described Pneumatic top bar is fixedly mounted on the upper end of described jaw to described jaw, and the middle part of jaw is hinged with described hinged seat, and the lower end of jaw is bare terminal end, and bare terminal end is provided with projection；Described Pneumatic top bar is by pneumatic control system control。

2. isolator overcoat air-actuated jaw according to claim 1, it is characterised in that described clamping section is only provided with three described jaws。

3. isolator overcoat air-actuated jaw according to claim 2, it is characterized in that, the edge of described jaw bare terminal end projection is provided with detection hole, and it is provided with the detection hole connection on trachea and three jaws, described tracheal strips has passed into gases at high pressure, is also associated with Pressure gauge and pressure-control valve on trachea。

4. isolator overcoat air-actuated jaw according to claim 1, it is characterised in that be provided with extension spring between bare terminal end and the pedestal of described jaw, and also threaded limited location pin on described pedestal。