A kind of spring force test equipment
Technical field
The utility model relates to spring force detection technique field, specially a kind of spring force test equipment.
Background technique
Spring is a kind of using the elastic machine components come work, and the part made of elastic material is sent out under external force
Raw deformation restores to the original state again after removing external force, it is generally made of spring steel, the complicated multiplicity of the type of spring is main by shape point
There are helical spring, scroll spring, flat spring, heterotypic spring etc..
For existing spring detection device when detecting elastic force compared with little spring, the stress of pressure sensor is too small, leads to pressure
The vertical inaccuracy of sensor detected causes error in data to influence product quality, or can be by replacing pressure sensor
It solves, but this mode is excessively complicated, and is unfavorable for improving detection efficiency.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of spring force test equipment, solves existing
When spring force detection device detects smaller elastic spring, the big problem of error information detection.
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of test of spring force is set
It is standby, including under casing, it is fixedly installed with top case at the top of the under casing, the roof center of the under casing offers hatchway, described
The inner cavity of under casing and be located at hatchway two sides be fixedly installed with slide bar, all sides of the slide bar slidably connect lifter plate, institute
It states and is fixedly installed with pneumatic shuttle at the top of lifter plate, and the top of pneumatic shuttle passes through hatchway and extends to the interior of top case
Portion.
Preferably, the pneumatic shuttle includes sleeve, loop bar, and the first movable block and threaded block, first movable block
Positioned at the inside of sleeve, and the edge of the first movable block is contacted with the inner wall of sleeve, the bottom end of the loop bar and the first movable block
Top be fixedly connected, the intracavity bottom of the sleeve is fixedly installed with air pressure inductor, and the side of the sleeve offers cross
Pipe, the transverse tube inner cavity are fixedly installed with vertical bar, and the vertical bar is fixedly installed with spring close to the side of sleeve, and the spring is remote
One end from vertical bar is fixedly installed with the second movable block, and the edge of the second movable block is contacted with the inner wall of transverse tube.
The bottom end of the threaded block is threadedly coupled with the top of loop bar, and the top of the threaded block is fixedly installed with pushing
Plate.
Preferably, the inner cavity top of the top case is fixedly installed with press machine, the fixed peace of the output end of the press machine
Equipped with pressure sensor, the bottom of the pressure sensor is fixedly installed with top board, and the center of top board and lower platen
Center corresponds to each other, and the intracavity bottom of the under casing is fixedly installed with hydraulic cylinder, and the output end and lifter plate of hydraulic cylinder
Bottom be fixedly connected.
Preferably, the top of the under casing and be located at hatchway side be fixedly installed with ring block, and the top of ring block
Offer annular groove.
Preferably, the inner cavity two sides of the under casing are provided with heating wire, the inner cavity top of the under casing is fixedly installed with
Temperature sensor.
Preferably, the side of the sleeve is provided with air inlet switch.
Preferably, the under casing and the front surface of top case offer chamber door.
The utility model provides a kind of spring force test equipment, have it is following the utility model has the advantages that
(1), the spring force test equipment, by be provided with pneumatic shuttle, pneumatic shuttle can within specified temperatures,
The loop bar distance mobile by the size and loop bar of power is reflected by baroceptor, can both be surveyed in this way by pressure sensor
The numerical value obtained calculates size of the spring by power, due to increasing loop bar, so that the stress of pressure sensor is become larger, is conducive to standard
The stress condition of true detection spring increases the accuracy of detection.
(2), spring force test equipment, by being threadedly coupled threaded block on the top of loop bar, when hydraulic cylinder drives
The top of loop bar can quickly finely tune when excessively high or too low, keep lower platen parallel with the top of spring to be measured, improve work
Make efficiency.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is the main view of the utility model;
Fig. 3 is the front sectional view of the sleeve of the utility model;
Fig. 4 is the partial enlarged view in Fig. 1 at A.
In figure: 1- under casing;2- top case;3- hatchway;4- slide bar;5- lifter plate;6- sleeve;7- loop bar;The first activity of 8-
Block;9- air pressure inductor;10- threaded block;11- lower platen;12- press machine;13- pressure sensor;14- top board;15- is hydraulic
Cylinder;16- ring block;17- annular groove;18- heating wire;19- temperature sensor;20- air inlet switch;21- chamber door;22- transverse tube;23-
Vertical bar;24- spring;The second movable block of 25-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of spring force test equipment, including under casing
1, the top of under casing 1 is fixedly installed with top case 2, and the roof center of under casing 1 offers hatchway 3, and the inner cavity of under casing 1 and being located at rises
Drop 3 two sides of mouth are fixedly installed with slide bar 4, and all sides of slide bar 4 slidably connect lifter plate 5, and the top of lifter plate 5 is fixedly mounted
There is pneumatic shuttle, and the top of pneumatic shuttle passes through hatchway 3 and extends to the inside of top case 2.
Wherein pneumatic shuttle includes sleeve 6, loop bar 7, and the first movable block 8 and threaded block 10, the first movable block 8 are located at sleeve
6 inside, and the edge of the first movable block 8 is contacted with the inner wall of sleeve 6, the top of the bottom end of loop bar 7 and the first movable block 8 is solid
Fixed connection, the intracavity bottom of sleeve 6 are fixedly installed with air pressure inductor 9, and the side of sleeve 6 offers transverse tube 22, in transverse tube 22
Chamber is fixedly installed with vertical bar 23, and vertical bar 23 is fixedly installed with spring 24 close to the side of sleeve 6, spring 24 far from vertical bar 23 one
End is fixedly installed with the second movable block 25, and the edge of the second movable block 25 is contacted with the inner wall of transverse tube 22.
The bottom end of threaded block 10 is threadedly coupled with the top of loop bar 7, and the top of threaded block 10 is fixedly installed with lower platen 11,
Hydraulic cylinder 15 can be finely tuned quickly when driving the top of loop bar 7 excessively high or too low, make the top of lower platen Yu spring to be measured
Hold row level with both hands, improves work efficiency.
Wherein the inner cavity top of top case 2 is fixedly installed with press machine 12, and the output end of press machine 12 is fixedly installed with pressure
Sensor 13, the bottom of pressure sensor 13 are fixedly installed with top board 14, and in the center of top board 14 and lower platen 11
The heart corresponds to each other, and the intracavity bottom of under casing 1 is fixedly installed with hydraulic cylinder 15, and the output end of hydraulic cylinder 15 and lifter plate 5
Bottom be fixedly connected.
Wherein the top of under casing 1 and it is located at the side of hatchway 3 and is fixedly installed with ring block 16, and the top of ring block 16 opens up
There is annular groove 17, annular groove 17 is for placing spring to be measured.
Wherein the inner cavity two sides of under casing 1 are provided with heating wire 18, and the inner cavity top of under casing 1 is fixedly installed with temperature sensor
19。
The side of its middle sleeve 6 is provided with air inlet switch 20, and air inlet switch 20 is used for folding and unfolding air.
Wherein under casing 1 and the front surface of top case 2 offer chamber door 21, and chamber door 21 is for operating and to the dimension with equipment
It repairs.
Before use, measurement loop bar 7 declines within specified temperatures distance and the record pressure that loop bar 7 is subject at this time at this time
With the air pressure in sleeve 6, obtained in the distance that loop bar 7 declines and the pressure and sleeve 6 that loop bar 7 is subject at this time by constantly measuring
Air pressure between corresponding relationship.
In use, first opening heating wire 18, make to reach specific temperature inside device, after temperature is stablized, by bullet to be measured
Spring is placed on annular groove 17, open hydraulic cylinder 15, hydraulic cylinder 15 with moving sleeve 6 go up and down, until threaded block 10 top with
The top horizontal of spring to be measured is aligned, and opens press machine 12, and press machine 12 drives top board 14 to pull down spring to be measured under
Pressing plate 11, pressure sensor 13, which is shown, records various time points pair during the power that press machine 12 exports, press machine 12 push
The data group answered, these data include the measurement numerical value of atmospheric pressure value and pressure sensor 13 in sleeve 6, are obtained by using preceding
Corresponding relationship find the size of power suffered by the moving distance and lower loop bar 7 of loop bar 7 and spring to be measured under corresponding pressure, in this way
Elastic force of the elastic force compared with little spring can more accurately be calculated.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., is all contained in the protection of the utility model within novel spirit and principle
Within the scope of.