CN207255755U

CN207255755U - Floating positioning fixture is used in NC processing

Info

Publication number: CN207255755U
Application number: CN201720654218.8U
Authority: CN
Inventors: 李宁; 王忠阳; 姜振涛
Original assignee: Suzhou Precision Components Ltd
Current assignee: Jiangsu Jiangzhun Precision Components Co ltd
Priority date: 2017-06-07
Filing date: 2017-06-07
Publication date: 2018-04-20
Anticipated expiration: 2027-06-07

Abstract

It the utility model is related to a kind of NC processing floating positioning fixture, including pressing plate, bed die, cylinder and guide post, the pressing plate is located at the surface of bed die, the cylinder is arranged on bed die bottom, its transmission shaft is fixedly connected with the pressing plate through bed die, and the guide post has four, is separately fixed at the bottom four corners of pressing plate, its end is slidably matched with the guide hole being arranged on bed die, and the bottom of the bed die is provided with spring catch fixed block.Ingenious combination of this NC processing with floating positioning fixture by locating ring and spring, it is highly practical；Locating ring is coordinated with gauge main body using small―gap suture, had both been ensured that locating ring slided up and down and in turn ensure that precision；Its is simple in structure, low manufacture cost, easy to maintain；The program is perfectly solved because product orientation change in size causes greatly positioning that the puzzlement brought is not allowed, in practice it has proved that its advantages on this is solved the problems, such as；This positioning method can also be in use to other processing procedures as assembled, polishing, punching press etc., adaptable, easy to popularize.

Description

Floating positioning fixture is used in NC processing

Technical field

Field of machining is the utility model is related to, more particularly to floating positioning fixture is used in a kind of NC processing.

Background technology

In field of machining, some products need NC after die cast（It is meant that numerically-controlled machine tool）Process screw hole and determine Position hole, because the size requirement to Product processing is stringent, and because the product pattern number that client provides is too many and irregular can repair a die, leads Cause leaving the positioning column that uses of NC processing for（With angled）The size of every batch of supplied materials is all unstable.

Current positioning method used on the market is conventional fixed location hole, it needs point pattern number and frequently adjusts Machine, if wherein positioning column is bigger than location hole, so that product can be caused to put not on earth, causes not pressing tightly, if positioning column compares location hole It is small, product orientation can be caused to be not allowed, product rejection rate is high, wastes substantial amounts of manpower and materials.

The content of the invention

Technical problem to be solved in the utility model is to provide a kind of change in size from product orientation column and influences Floating positioning fixture is used in the NC processing of positioning accuracy.

In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：A kind of NC processing is used Floating positioning fixture, including pressing plate, bed die, cylinder and guide post, the top center of the bed die are provided with for placing product Gauge cavity, the both sides of the gauge cavity are provided with spacer pin, and the pressing plate is located at the surface of bed die, and the cylinder has two It is a, the left and right sides of bed die bottom is separately positioned on, its transmission shaft is fixedly connected with the pressing plate through bed die, and is set on each cylinder A connector is equipped with, the guide post has four, is separately fixed at the bottom four corners of pressing plate, its end is with being arranged on bed die Guide hole is slidably matched, and the bottom of the bed die is provided with spring catch fixed block, and the spring catch fixed block is by spring anchor block, fixed Position ring and spring composition；The spring anchor block is fixed at the bottom of bed die, its top center is provided with cavity, described fixed Position ring is located in the cavity, its top and bottom is each passed through the pilot hole being preset on bed die and spring anchor block, and described Locating ring is slidably matched with pilot hole, and the spring is nested with the outside of locating ring.

Preferably, the outside of the locating ring is provided with limit protrusion, the spring is nested with convex in locating ring upper limit The lower section risen, its top is inconsistent with limit protrusion, and bottom is fixed on the spring anchor block of cavity bottom.

Preferably, the locating ring has three.

Preferably, the position of the spring catch fixed block and the position for being arranged on gauge cavity on bed die are corresponding up and down.

Compared with prior art, the usefulness of the utility model is：It is fixed that this NC processing floating positioning fixture passes through The ingenious combination of position ring and spring, it is highly practical；Locating ring is coordinated with gauge main body using small―gap suture, is both ensured above and below locating ring Slip in turn ensure that precision；Its is simple in structure, low manufacture cost, easy to maintain；The program is perfectly solved because of product orientation Change in size causes greatly positioning that the puzzlement brought is not allowed, in practice it has proved that its advantages on this is solved the problems, such as；This positioning method Also other processing procedures can be in use to as assembled, polishing, punching press etc., it is adaptable, easy to popularize.

Brief description of the drawings

The utility model is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is the utility model NC processing floating positioning fixture external structure schematic diagrams；

Fig. 2 is the utility model NC processing floating positioning fixture lateral partial structurtes sectional views；

Fig. 3 is the schematic enlarged-scale view of A in Fig. 2.

In figure：1st, pressing plate；2nd, bed die；3rd, cylinder；4th, connector；5th, spring catch fixed block；51st, spring anchor block；52nd, position Ring；53rd, spring；54th, pilot hole；55th, limit protrusion；56th, cavity；6th, spacer pin；7th, guide post；8th, gauge cavity；9th, product.

Embodiment

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments：

Floating positioning fixture, including pressing plate 1, bed die 2, cylinder 3 and guide post 7 are used in a kind of NC processing shown in Fig. 1, Fig. 2, described The top center of bed die 2 is provided with the gauge cavity 8 for placing product 9, and the both sides of the gauge cavity 8 are provided with spacer pin 6, The pressing plate 1 is located at the surface of bed die 2, and the cylinder 3 has two, is separately positioned on the left and right sides of 2 bottom of bed die, its Transmission shaft is fixedly connected through bed die 2 with pressing plate 1, and a connector 4 is provided with each cylinder 3, and the guide post 7 has four Root, is separately fixed at the bottom four corners of pressing plate 1, its end is slidably matched with the guide hole being arranged on bed die 2；The bed die 2 Bottom is provided with spring catch fixed block 5, the position of the spring catch fixed block 5 and the position for being arranged on gauge cavity 8 on bed die 2 It is corresponding up and down.

As shown in figure 3, the spring catch fixed block 5 is made of spring anchor block 51, locating ring 52 and spring 53；The bullet Spring fixed block 51 is fixed at the bottom of bed die 2, its top center is provided with cavity 56, and the locating ring 52 is located at the cavity In 56, its top and bottom is each passed through the pilot hole 54 being preset on bed die 2 and spring anchor block 51, and the locating ring 52 It is slidably matched with pilot hole 54, the spring 53 is nested with the outside of locating ring 52.

In order to ensure that locating ring 52 moves under the effect of spring 53, the outside of the locating ring 52 is provided with limit protrusion 55, the spring 53 is nested with the lower section of 52 upper limit protrusion 55 of locating ring, its top is inconsistent with limit protrusion 55, and bottom is solid It is scheduled on the spring anchor block 51 of 56 bottom of cavity.

In order to adapt to different product, the locating ring 52 has three.

Its operation principle is as follows：The present apparatus provides power by spring 53, and normality is：Cylinder 3 is with dynamic pressure plate 1 and guide post 7 Rise, spring 53 contributes, and locating ring 52 is moved upwards, product 9 is aligned after locating ring 52 is put into gauge cavity 8, cylinder 3 Ventilated by connector 4, cylinder 3 is pushed with dynamic pressure plate 1 and guide post 7, locating ring 52 compresses downwards with the size of product orientation column Different positions, realizes its pinpoint purpose, and pressing plate 1 starts to process, circulates according to this after product 9 is clamped, to reach work Part position and and clamp purpose.

Ingenious combination of this NC processing with floating positioning fixture by locating ring and spring, it is highly practical；Locating ring with Gauge main body is coordinated using small―gap suture, had both been ensured that locating ring slided up and down and in turn ensure that precision；Its is simple in structure, cost of manufacture It is low, it is easy to maintain；The program is perfectly solved because product orientation change in size causes greatly positioning that the puzzlement brought, practice is not allowed Prove its advantages on this is solved the problems, such as；This positioning method can also be in use to other processing procedures as assembled, polishing, punching press etc., It is adaptable, easy to popularize.

It is emphasized that：The above is only the preferred embodiment of the present utility model, and not the utility model is appointed What formal limitation, every any simple modification made according to the technical essence of the utility model to above example, etc. With change and modification, in the range of still falling within technical solutions of the utility model.

Claims

1. floating positioning fixture, including pressing plate are used in a kind of NC processing（1）, bed die（2）, cylinder（3）And guide post（7）, the bed die （2）Top center be provided with for placing product（9）Gauge cavity（8）, the gauge cavity（8）Both sides be provided with it is spacing Pin（6）, the pressing plate（1）Positioned at bed die（2）Surface, the cylinder（3）With two, bed die is separately positioned on（2）Bottom The left and right sides in portion, its transmission shaft pass through bed die（2）With pressing plate（1）It is fixedly connected, and each cylinder（3）On be provided with one and connect Head（4）, the guide post（7）With four, pressing plate is separately fixed at（1）Bottom four corners, its end and be arranged on bed die（2）On Guide hole be slidably matched, it is characterised in that：The bed die（2）Bottom be provided with spring catch fixed block（5）, the spring catch consolidates Determine block（5）By spring anchor block（51）, locating ring（52）And spring（53）Composition；The spring anchor block（51）It is fixed at Bed die（2）Bottom, its top center is provided with cavity（56）, the locating ring（52）Positioned at the cavity（56）It is interior, its top It is each passed through with bottom and is preset in bed die（2）And spring anchor block（51）On pilot hole（54）, and the locating ring（52）With Pilot hole（54）It is slidably matched, the spring（53）It is nested with locating ring（52）Outside.

2. floating positioning fixture is used in NC processing according to claim 1, it is characterised in that：The locating ring（52）Outside It is provided with limit protrusion（55）, the spring（53）It is nested with locating ring（52）Upper limit is raised（55）Lower section, its top with Limit protrusion（55）Inconsistent, bottom is fixed on cavity（56）The spring anchor block of bottom（51）On.

3. floating positioning fixture is used in NC processing according to claim 1, it is characterised in that：The locating ring（52）With three It is a.

4. floating positioning fixture is used in NC processing according to claim 1, it is characterised in that：The spring catch fixed block（5） Position and be arranged on bed die（2）Upper gauge cavity（8）Position it is corresponding up and down.