CN202548018U

CN202548018U - Metal part pressure variation testing device

Info

Publication number: CN202548018U
Application number: CN2012201518796U
Authority: CN
Inventors: 马立中
Original assignee: NINGBO LONG BEACH CO Ltd
Current assignee: NINGBO LONG BEACH CO Ltd
Priority date: 2012-04-12
Filing date: 2012-04-12
Publication date: 2012-11-21
Anticipated expiration: 2022-04-12

Abstract

The utility model provides a metal part pressure variation testing device. The metal part pressure variation testing device comprises a whole body which is obtained by connecting a movable plate and a bottom plate by a guide column, wherein an upper press column and an upper measuring frame are fixed on the movable plate; a seat and a lower measuring frame are fixed on the bottom plate; two-point displacement meters are fixed on the upper and lower measuring frames; an air cylinder and an air pump are fixed on the bottom plate; the air pump is connected with an air switch and the air cylinder by air passages; and upper and lower limiting locking rings are connected to the guide column. In addition, a supporting rod is also additionally arranged between the movable plate and the bottom plate, can be used for replacing a supporting effect of the air cylinder and saving energy and is used for preventing the movable plate from exceeding a highest limit during rising, so that a possibility that the two-point displacement meters are driven by the movable plate to excessively rise so as to damage the two-point displacement meters is limited; heights of the upper and lower limiting locking rings on the guide column are adjusted to measure parts and products with different heights or limit the movable plate up and down, so that short measuring travel is achieved and purposes of high measuring speed, high efficiency, energy saving and time saving can be achieved; moreover, high measuring accuracy is achieved, and the metal part pressure variation testing device provided by the utility model can be used together with various press machines with different structures.

Description

The metal parts pressurized changes proving installation

Technical field

The utility model relates to a kind of proving installation, particularly a kind of to metal parts the variation under the pressurized situation test, change proving installation to guarantee product quality and metal parts pressurized safe in utilization.

Background technology

Development along with Machining Technology; Attainable machining precision is also increasingly high; Be to guarantee the security that product uses, also must important to some, critical part, product tests, meanwhile some measuring techniques, measurement mechanism are also had higher requirement; Requirement can reach the level of pin-point accuracy; But the measurement of more existing metal parts only by pressing machine and on instrument accomplish, does not also have special-purpose measurement mechanism, thus measuring accuracy satisfied far away not user's high request.

The patent No. 200420029843.6 " hydropress fuselage pressure distortion measurement mechanism " but also must install on this measurement mechanism, counterdie energy measurement, therefore operation, use inconvenient, the measurement of suitable large parts.

It is merely thin-wall part process parameters of choice and optimization number of patent application 201010532771.7 " measurement of a kind of aviation thin-wall part machining deformation and dynamic response ", and simulated environment and experiment porch are provided.

Summary of the invention

The utility model technical matters to be solved is: provide a kind of metal parts pressurized to change proving installation; Measuring equipment for special use; Can under maximal work pressure, test out the size of metal parts deflection accurately, fast; Thereby guarantee the quality of metal parts, the security of use and serviceable life.

The utility model addresses the above problem the technical scheme that is adopted: the metal parts pressurized changes proving installation; Comprise the integral body that portable plate, base plate connect into through guide pillar, be fixed with compression leg and last measurement bay on the said portable plate, be fixed with seat and following measurement bay on the said base plate; Be fixed with 2 displacement meters on the said upper and lower measurement bay; Also be fixed with cylinder and air pump on the described base plate, and air pump is connected with gas circuit with air cock, cylinder, is connected with upper and lower limit position locking ring on the said guide pillar.

Compared with prior art; The advantage of the utility model is: therefore in the device independence arranged, be specifically designed to the pneumatic power source that the control portable plate moves up; And the air pump in the pneumatic source, cylinder can automatic slowly promote portable plate and move up, and makes its stressed uniform and stable alleviate labour intensity again.Between portable plate, base plate, increase in addition and put support stick; Energy is saved in the supporting role that can be used for alternative cylinder again; Surpass the highest limiting the quantity of when being used to avoid portable plate to rise; Thereby also having limited driving 2 displacement meters by portable plate and rise too many and damage 2 displacement meters, also can avoid simultaneously because of the too fast bump player of portable plate decline rate, is a simple safety practice easy to use.Regulate the height of the upper and lower limit position locking ring on the guide pillar, can be used for measuring the part or the product of differing heights, or portable plate is carried out upper and lower spacing, so not only make and measure stroke and lack and to reach again that measuring speed is fast, efficient is high, the purpose of energy-and time-economizing.Because of having adopted 2 displacement meters high more a lot of than the measuring accuracy of measuring instrument on original pressing machine, this device can with the pressing machine of various models, structure supporting use, measure the part or the product of differing heights, shape fast.

Description of drawings

The structural representation of Fig. 1, the utility model.

The left view of Fig. 2, Fig. 1.

Fig. 3, user mode reference diagram (cylinder upper piston jack-up portable plate is taken support stick away, does not draw 2 displacement meters).

Fig. 4, user mode reference diagram (put into test block, do not draw 2 displacement meters).

Fig. 5, user mode reference diagram (cylinder piston resets, and pressing machine pressurizes to test block, does not draw 2 displacement meters).

Fig. 6, pressure distortion curve map.

Embodiment

Embodiment to the utility model further describes below in conjunction with accompanying drawing.

Test board is whole by the shaped as frame that base plate 1, guide pillar 3 support and connection of portable plate 6 on two diagonal angles become.

According to the needs of test part size, also can be employed in the supporting construction that connects guide pillar on four jiaos.

Be fixed with seat 12, cylinder 13 at the upper surface of base plate 1, fixing air pump 14 and be connected as the pneumatic power source use on the riser of base plate side surface with cylinder 13, air cock 15 usefulness gas circuits, front surface is screwed down measurement bay 2; Base plate relative pressure machine slide rail place has mounting hole to be connected with the pressing machine slide rail; Whole test board can be moved front and back on the pressing machine slide rail, be screwed compression leg 10 at the lower surface of portable plate 6, last compression leg is the ladder cylinder; The through hole that the upper end is passed on the portable plate 6 extends on the portable plate; Front surface is screwed measurement bay 8, and the adjustment hole of waist shape is arranged on the last measurement bay 8, can regulate its height with the height of test block 16;

Base plate

1,6 of portable plates are placed with support stick 5 and are used to support portable plate; Two adjutages on 8,2 fixing 11, two displacement meters of 2 displacement meters of upper and lower measurement bay are screwed respectively on upper and lower measurement bay, have opening on the upper and lower limit

position locking ring

7,4 and clasp on guide pillar 3 with screw respectively; And it is on the upper and lower position of portable plate 6, and nearer apart from the portable plate position.

Upper limit binding ring 7 is used for the height that portable plate 6 rises is carried out spacing, also is used for protecting 2 displacement meters 11 injury-free simultaneously, and because of the last point of fixity of 2 displacement meters is mounted on the portable plate, 2 its extension lines of displacement meter are connected with computing machine.

During use, this device is placed on (figure draws) on the slide rail of pressing machine, and with the screw of being with slide block pass on the base plate mounting hole and over against the sliding-rail groove of pressing machine, this device can be moved forward and backward along sliding-rail groove.

Open the air cock 15 on the cylinder, the jack-up portable plate 6 that moves up of the piston on the cylinder is because of there being upper limit binding ring 7 spacing; The height that can not exceed scope of design; At this moment can support stick 5 be taken away, as shown in Figure 3, again test specimen 16 or product are placed on the seat 12; As shown in Figure 4, test block 16 is the metal parts on the automobile absorber among the figure.

Turn off air cock 15 then, the piston on the cylinder moves down and resets and the contacting and support of disengaging and portable plate 6, starts pressing machine again, and the manometric head 9 on the pressing machine begins pressurization over against last compression leg 10, and is as shown in Figure 5.

Then from computer display screen, just can see the curve map of part,, continue to be pressurized to maximal work force value 30～60,000 N (KN) again up to maximum rated pressure 0～30,000 Ns (KN) to bottom offset; And the pressure curve A that draws is as shown in Figure 6, and pressing machine decompression at this moment makes pressure discharge from 60～30～0; Draw again like the curve B among Fig. 6, this is a rebound curve, opens air cock 15 again and makes portable plate 6 jack-up; Can be put back into the support stick of taking out 5 on the base plate 1 this moment again, is used to support portable plate.

At this moment the rated pressure from rebound curve B, pressure curve A is worth 30,000 Ns; A corresponding respectively compression displacement amount Δ B=0.164mm, Δ A=0.133mm; Calculate difference DELTA B-Δ A=0.164mm-0.133mm=0.031 < 0.1mm; If Δ B-Δ A≤0.1mm, above-mentioned test block is then confirmed as specification product, if just can not lattice greater than 0.1.

Claims

1. a metal parts pressurized changes proving installation; Comprise the integral body that portable plate (6), base plate (1) connect into through guide pillar (3); Be fixed with compression leg (10) and last measurement bay (8) on the said portable plate (6); Be fixed with seat (12) and following measurement bay (2) on the said base plate (1), it is characterized in that being fixed with 2 displacement meters (11) between said upper and lower measurement bay (8,2), also be fixed with cylinder (13) and air pump (14) on the described base plate (1); And air pump (14) is connected with gas circuit with air cock (15), cylinder (13), is connected with upper and lower limit position locking ring (7,4) on the said guide pillar (3).

2. metal parts pressurized according to claim 1 changes proving installation, it is characterized in that being placed with support stick (5) between said base plate (1), portable plate (6).

3. metal parts pressurized according to claim 1 changes proving installation; It is characterized in that having opening on the said upper and lower limit position locking ring (7,4); Clasp on guide pillar (3) with screw respectively, and on the upper and lower position of portable plate (6), nearer apart from portable plate (6) position.

4. metal parts pressurized according to claim 1 changes proving installation; It is characterized in that fixing 2 displacement meters (11) between said upper and lower measurement bay (8,2); Two adjutages on 2 displacement meters are screwed respectively on upper and lower measurement bay (8,2), and its extension line is connected with computing machine.