CN105277312A - Calibration device of force loading mechanism of elastic part - Google Patents
Calibration device of force loading mechanism of elastic part Download PDFInfo
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- CN105277312A CN105277312A CN201410345086.1A CN201410345086A CN105277312A CN 105277312 A CN105277312 A CN 105277312A CN 201410345086 A CN201410345086 A CN 201410345086A CN 105277312 A CN105277312 A CN 105277312A
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- supporting seat
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Abstract
The present invention provides a calibration device of a force loading mechanism of an elastic part, belonging to the field of calibration device technology. The force loading mechanism of the elastic part comprises: a transmission frame, an active block arranged at the transmission frame; a rotating shaft base consisting of a supporting seat and a shaft base body arranged at the supporting seat, the supporting seat being fixedly disposed at the active block, the shaft base body being provided with a rotating through hole, the rotating shaft body passing through the rotating shaft; a turning part consisting of a driving plate and a driven plate which are fixedly connected with each other, the driving plate being connected with the rotating shaft body; and a force sensor having two ends respectively connected with the driving plate and a force loading rod. The calibration device provided by the invention comprises a coded disc and a weight, the coded disc includes a disc body and a plugging block fixed at the bottom of the disc body, and a vertical spacing hole is arranged within the plugging block. When the force loading mechanism of the elastic part is located at the calibration position, the end portion of the force loading rod inserts into the vertical spacing hole, the end of the force loading rod is contact with the disc body of the coded disc, and the weight is disposed on the coded disc. The calibration device of a force loading mechanism of an elastic part is simple in structure and reliable in usage, and the labor intensity is reduced.
Description
Technical field
The present invention relates to calibrating installation technical field, particularly relate to a kind of calibrating installation of power load maintainer of elastic part.
Background technology
Electrohydraulic system, as one of a kind of main power resources and energy transferring unit, is widely used in industrial control field.In such systems, electrohydraulic servo valve is main control module.And the performance of the torque motor be made up of electromagnetic component, elastic part and fluid decides the control accuracy of this type of servo-valve.Torque motor Elastic part obtains feedback control signal as force sensitive device.And the performance of the stiffness characteristics of elastic part to electrohydraulic servo valve has material impact, this characteristic determines the performance index such as control accuracy, sensitivity of electrohydraulic servo valve.
In the design process of electrohydraulic servo valve, need strictly to control the rigidity value of the elastic part in its torque motor, elastic part comprises rod-type elastic part and tube-like elastic part, and elastic part is generally small-sized precise part.But the machining level of high precision part of China limits by present stage, be difficult to once reach design objective to the manufacture of this type of elastic part, generally all will by processing, measure, reprocessing, the repetitive process measured again just can reach requirement.In this repeated measurement process, the key device used is needed to have: elastic part clamping device, power load maintainer, elastic part deformation measuring device and loading force position adjusting mechanism.Above-mentioned rigidity repeated measurement process, needs to carry out repeated loading test acting force to accurate elastic part, obtains its rigidity value.
In the rigidity test of this type of elastic part, power load maintainer is generally made up of power load bar, force snesor, loading transmission base, loading force fine position mechanism etc.But this type of elastic part has the features such as size is little, machining precision is high, multi-size.These features require to different batches elastic part rigidity test at first, all will calibrate the zero point of the force snesor in acting force load maintainer, to obtain rigidity value comparatively accurately.
But force snesor, when carrying out zero point correction to force snesor, first must be removed from power load maintainer, and then do zero point correction by current rigidity test personnel, after calibration is complete, is again installed on power load maintainer by force snesor.In above-mentioned loaded down with trivial details force snesor dismounting and installation process, need the multiple mounting screw of dismounting, and the fixation power of operator to each screw is difficult to accurate control, thus causes the change at force snesor zero point, the precision of rigidity test is impacted.In addition, in above-mentioned disassembly process, because the positional precision for the threaded hole be connected with power load bar on force snesor is limited, the power load bar end position offset of power load maintainer can be caused in installation process, also can the rigidity test precision of influence elastane part.
Along with electrohydraulic control system is at the development of China's industrial control field, with measurement efficiency, higher requirement is proposed to the stiffness measurement precision of the elastic part in electrohydraulic servo valve.
At present, the rigidity test of this elastic part also be there is no to a kind of calibrating installation of the load maintainer of power simply and easily, the requirement of tightness and convenience can be met simultaneously.
Summary of the invention
The shortcoming of prior art in view of the above, it is simple, firm, easy to use that the technical matters that the present invention solves is to provide a kind of structure, can improve the calibrating installation of the power load maintainer of the stiffness measurement efficiency of elastic part and the elastic part of stiffness measurement precision.
For achieving the above object and other relevant objects, the invention provides a kind of calibrating installation of power load maintainer of elastic part, the power load maintainer of elastic part comprises: driving frame, movable block, runner assembly, force snesor and power load bar; Described movable block is arranged on described driving frame, and is flexibly connected with described driving frame; Described runner assembly comprises: shaft seat, rotating shaft body and flip piece; The supporting seat that described shaft seat comprises rectangle and the axle bed body be fixedly installed on the end face of described supporting seat, described supporting seat is fixedly installed on described movable block, described axle bed body is provided with the rotation through hole corresponding to described rotating shaft body, the axis of described rotation through hole and plane-parallel, described rotating shaft body passes described rotation through hole, and described rotating shaft body rotates relative to described axle bed body; Described flip piece comprises the active plate and follower plate that are fixedly connected with, and the angle between described active plate and described follower plate is 90 degree, and described active plate is fixedly connected with described rotating shaft body; When the power load maintainer of described elastic part is in stiffness measurement position, the axis of described power load bar and plane-parallel, described follower plate is connected with described supporting seat; The two ends of described force snesor are fixedly connected with described power load bar with described active plate respectively, and the one end be connected with described force snesor in the two ends of described power load bar is stiff end, and the other end of described power load bar is test lead; The calibrating installation of the power load maintainer of elastic part comprises code-disc and counterweight, described code-disc comprises disk body and is fixed on the grafting block bottom described disk body, described grafting block inside is provided with longitudinal spacing hole, and the shape in described longitudinal spacing hole is corresponding to the shape of the test lead of described power load bar; When the power load maintainer of elastic part is in calibrating position, the side away from described follower plate of described active plate contacts with the end face of described supporting seat, the axis of described power load bar and horizontal plane, the end of described power load bar is inserted in the longitudinal spacing hole of described code-disc, the termination of the test lead of described power load bar contacts with the disk body bottom surface of described code-disc, and described counterweight is positioned on described code-disc.
Preferably, the test lead of described power load bar comprises round platform portion and is fixedly arranged on the spherical part above described round platform portion; Described longitudinal spacing hole comprise connect successively from top to bottom disk body connecting hole portion, spacing hole portion and patchhole portion; Described spacing hole portion and truncated cone-shaped, the diameter of the bottom in described spacing hole portion and the diameter of junction, described patchhole portion and the round platform portion of described power load bar is identical, the gradient in described spacing hole portion is identical with the gradient in the round platform portion of described power load bar, the height in described disk body connecting hole portion and the height in described spacing hole portion and equal the height in described round platform portion and the height of described spherical part with.
Preferably, the side of the close described rotating shaft body of described follower plate is the medial surface of described follower plate; The medial surface of described follower plate is provided with L-type groove, described L-type groove extends to the direction away from described active plate, the face parallel with the medial surface of described follower plate of described L-type groove is side card access surface, and the face vertical with described side card access surface of described L-type groove is top card junction; When the power load maintainer of described elastic part is in stiffness measurement position, the top card junction of described L-type groove contacts with the end face of described supporting seat, the side card access surface of described L-type groove and one of them contacts side surfaces of described supporting seat.
Further, the side card access surface of described L-type groove is provided with at least one flap through hole; When the power load maintainer of described elastic part is in stiffness measurement position, the side contacted with the side card access surface of described L-type groove of described supporting seat is fastening surface, described fastening surface is provided with the fixed orifice corresponding to described flap through hole, described follower plate through described flap through hole and described fixed orifice, is fixedly connected with described supporting seat by securing member successively.
Preferably, the quantity of described axle bed body is two; Described rotating shaft body comprises linkage block and driving stem, described linkage block is arranged between two described axle bed bodies, described linkage block is provided with interlock through hole, described driving stem is inserted in the interlock through hole of described linkage block, and be fixedly connected with described linkage block, the two ends of described driving stem pass the rotation through hole of corresponding described axle bed body respectively, and described linkage block is fixedly connected with described active plate.
Preferably, four angles of described supporting seat are provided with plate connecting hole; Described runner assembly also comprises mounting blocks, described mounting blocks is arranged between described movable block and described supporting seat, described mounting blocks is fixedly connected with described movable block, and described mounting blocks is rectangle, and four angles of described mounting blocks are provided with the block connecting hole corresponding to described plate connecting hole; Described supporting seat through described plate connecting hole and described piece of connecting hole, is fixedly connected with described mounting blocks by securing member successively.
Preferably, described runner assembly also comprises auxiliary block, and described active plate is connected with described force snesor by described auxiliary block.
Preferably, described driving frame comprises transmission base and leading screw, and described leading screw is fixedly installed in described transmission base, the axis of the screw rod of described leading screw and plane-parallel; Described movable block is provided with the connecting through hole corresponding to the screw rod of described leading screw, and the screw rod of described leading screw passes the connecting through hole of described movable block, and described movable block moves along the length direction of the screw rod of described leading screw.
Preferably, the power load maintainer of described elastic part also comprises analog to digital converter and computing machine, and described force snesor is connected with described computing machine by described analog to digital converter.
As mentioned above, the calibrating installation of the power load maintainer of elastic part of the present invention, has following beneficial effect:
(1) active plate of flip piece of the present invention is fixedly connected with rotating shaft body, operating personnel's hand rotation rotating shaft body, rotating shaft body can be made to rotate relative to axle bed body, rotating shaft body drives flip piece and the power load maintainer be fixed on flip piece rotates, in flip piece rotation process, when axis and the plane-parallel of power load bar, the power load maintainer of elastic part is in stiffness measurement position, the follower plate of flip piece is connected with supporting seat, rigidity test can be carried out to elastic part; When the contacting with the end face of supporting seat away from the side of follower plate of active plate, the axis of power load bar and horizontal plane, now the power load maintainer of elastic part is in calibrating position, the end of power load bar is inserted in the longitudinal spacing hole of code-disc, the termination of the test lead of power load bar contacts with the disk body bottom surface of described code-disc, counterweight is positioned on code-disc, can calibrate power load maintainer; Angle between active plate and follower plate is 90 degree, it is corresponding that the power load maintainer that this angle makes the extreme position in flip piece rotation process and the power load maintainer of elastic part be in stiffness measurement position and elastic part is in calibrating position, defines the rotational angle of flip piece.
(2) the round platform portion of power load bar of the present invention is inserted in the longitudinal spacing hole of code-disc with the spherical part be fixedly arranged on above round platform portion, the termination on the top of spherical part contacts with the disk body bottom surface of code-disc, counterweight is positioned on described code-disc, and the spherical part of power load bar fully can sense the power that counterweight applies, the diameter of the bottom in spacing hole portion and the diameter of junction, described patchhole portion and the round platform portion of described power load bar is identical, the gradient in spacing hole portion is identical with the gradient in the round platform portion of described power load bar, the height in described disk body connecting hole portion and the height in described spacing hole portion and equal the height in described round platform portion and the height of described spherical part with, the exert all one's strength bottom in round platform portion of load bar of this structure may be stuck in the junction in spacing hole portion and described patchhole portion, and being inserted in after in the grafting block of code-disc of load bar of exerting all one's strength, the axis of the grafting block of code-disc and the axis conllinear of power load bar, code-disc self-centering, prevent the position of code-disc from offseting.
(3) medial surface of follower plate of the present invention is provided with L-type groove, when the power load maintainer of described elastic part is in stiffness measurement position, the top card junction of described L-type groove contacts with the end face of described supporting seat, the side card access surface of described L-type groove and one of them contacts side surfaces of described supporting seat, supporting seat blocks follower plate, prevent follower plate from continuing to move down, supporting seat plays position-limiting action, ensures axis and the plane-parallel of power load bar simultaneously.
(4) the present invention is by means of only flip piece drive load maintainer, the power load bar of load maintainer of can exerting all one's strength rotates between calibrating position and stiffness measurement position, force snesor is without the need to disassembling from power load maintainer, the power calibration operation of power load maintainer can be completed, avoid numerous and diverse operating process of force snesor overall pulling down and remove the error produced in installation process, therefore structure of the present invention is simple, easy to operate, use is reliable, reduce labour intensity, can improve stiffness measurement efficiency and the stiffness measurement precision of elastic part.
Accompanying drawing explanation
The power load maintainer that Fig. 1 is shown as elastic part of the present invention is in the backsight structural representation of stiffness measurement position.
The power load maintainer that Fig. 2 is shown as elastic part of the present invention is in the forward sight structural representation of stiffness measurement position.
The power load maintainer that Fig. 3 is shown as elastic part of the present invention is in the structural representation of calibrating position.
Fig. 4 be shown as the power load maintainer of elastic part of the present invention from stiffness measurement position to the structural representation calibrating position moving process.
The power load maintainer that Fig. 5 is shown as elastic part of the present invention carries out structural representation during stiffness measurement.
Fig. 6 is shown as the side structure schematic diagram of the code-disc of the power load maintainer of elastic part of the present invention.
Fig. 7 is shown as the polycrystalline substance schematic diagram of the code-disc of the power load maintainer of elastic part of the present invention.
Fig. 8 is shown as the cross-sectional view of the code-disc of the power load maintainer of elastic part of the present invention.
Fig. 9 is shown as the structural representation of the power load bar of the power load maintainer of elastic part of the present invention.
The power load bar that Figure 10 is shown as the power load maintainer of elastic part of the present invention is inserted in the structural representation of code-disc.
Figure 11 is shown as the structural representation of the rotating shaft body of the power load maintainer of elastic part of the present invention.
Figure 12 is shown as the structural representation of the flip piece of the power load maintainer of elastic part of the present invention.
The structural representation that the linkage block that Figure 13 is shown as the power load maintainer of elastic part of the present invention is connected with flip piece.
The structural representation that the digital to analog converter that Figure 14 is shown as the power load maintainer of elastic part of the present invention is connected with force snesor and computing machine.
Figure 15 is shown as the structural representation of the force snesor of the power load maintainer of elastic part of the present invention and the receiving hole of auxiliary block junction.
The force side that Figure 16 is shown as the force snesor of the power load maintainer of elastic part of the present invention is provided with the structural representation of stressed through hole.
Drawing reference numeral explanation
100 driving frames
110 transmission base
120 leading screws
121 screw rods
130 pedestal through holes
200 movable blocks
210 connecting through holes
300 runner assemblies
310 shaft seats
311 supporting seats
3111 fastening surfaces
3112 fixed orifices
312 axle bed bodies
3121 rotate through hole
313 plate connecting holes
320 rotating shaft bodies
321 linkage blocks
3211 interlock through holes
322 driving stems
330 flip pieces
331 active plates
3311 seal faces
332 follower plates
3321 medial surfaces
333L type groove
3331 side card access surfaces
3332 top card junctions
334 flap through holes
340 mounting blocks
400 force snesor
410 receiving holes
420 stressed through holes
500 power load bars
510 round platform portions
520 spherical part
530 bar side through hole
600 code-discs
610 disk bodies
620 grafting blocks
621 longitudinal spacing holes
6211 disk body connecting hole portions
6212 spacing hole portions
6213 patchhole portions
700 counterweights
810 analog to digital converters
820 computing machines
900 auxiliary block
910 auxiliary through hole
10 pressing plate pedestals
11 pressing plate bodies
12 rotary handles
20 clamp base
30 elastic parts
The height in H1 disk body connecting hole portion
The height in H2 spacing hole portion
The height in H3 round platform portion
The height of H4 spherical part
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this instructions can understand other advantages of the present invention and effect easily.
Refer to accompanying drawing.Notice, structure, ratio, size etc. that this instructions institute accompanying drawings illustrates, content all only in order to coordinate instructions to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this instructions as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, Figure 2 with shown in Figure 14, the power load maintainer that Fig. 1 is shown as elastic part of the present invention is in the backsight structural representation of stiffness measurement position, the structural representation that the digital to analog converter that Figure 14 is shown as the power load maintainer of elastic part of the present invention is connected with force snesor and computing machine.The power load maintainer that Fig. 2 is shown as elastic part of the present invention is in the forward sight structural representation of stiffness measurement position, in the calibrating installation of the power load maintainer of the elastic part of the present embodiment, the power load maintainer of elastic part comprises: driving frame 100, movable block 200, runner assembly 300, force snesor 400, power load bar 500, analog to digital converter 810 and computing machine 820;
Movable block 200 is arranged on driving frame 100, and is flexibly connected with driving frame 100.
Runner assembly 300, comprising: shaft seat 310, rotating shaft body 320 and flip piece 330;
As shown in figures 1 and 3, the power load maintainer that Fig. 3 is shown as elastic part of the present invention is in the structural representation of calibrating position.The supporting seat 311 that shaft seat 310 comprises rectangle and the axle bed body 312 be fixedly installed on the end face of supporting seat 311, supporting seat 311 is fixedly installed on movable block 200, axle bed body 312 is provided with the rotation through hole 3121 corresponding to rotating shaft body 320, rotate axis and the plane-parallel of through hole 3121, rotating shaft body 320 passes and rotates through hole 3121, and rotating shaft body 320 rotates relative to axle bed body 312.
Flip piece 330 comprises the active plate 331 and follower plate 332 that are fixedly connected with, angle between active plate 331 and follower plate 332 is 90 degree, active plate 331 is fixedly connected with rotating shaft body 320, in the present embodiment, active plate 331 and follower plate 332 are rectangle, and active plate 331 and follower plate 332 form L-type structure.
As shown in Figure 1 and Figure 5, the power load maintainer that Fig. 5 is shown as elastic part of the present invention carries out structural representation during stiffness measurement.When the power load maintainer of elastic part is in stiffness measurement position, the axis of power load bar 500 and plane-parallel, follower plate 332 is connected with supporting seat 311.
As shown in Figure 3, the two ends of force snesor 400 are fixedly connected with power load bar 500 with active plate 331 respectively, power load bar 500 is provided with two ends, one end that power load bar 500 is connected with force snesor 400 is stiff end, the other end of power load bar 500 is test lead, the direction of the axis of power load bar 500 is parallel with the plane residing for the end face of active plate 331, and the direction of rotating the axis of through hole 3121 is vertical with the direction of the axis of power load bar 500.
As shown in Fig. 3, Fig. 6 and Fig. 7, Fig. 6 is shown as the side structure schematic diagram of the code-disc of the power load maintainer of elastic part of the present invention, and Fig. 7 is shown as the polycrystalline substance schematic diagram of the code-disc of the power load maintainer of elastic part of the present invention.The calibrating installation of the power load maintainer of elastic part comprises code-disc 600 and counterweight 700, the grafting block 620 that code-disc 600 comprises disk body 610 and is fixed on bottom disk body 610, grafting block 620 inside is provided with longitudinal spacing hole 621, and the shape in longitudinal spacing hole 621 is corresponding to the shape of the test lead of power load bar 500.
As shown in Fig. 3, Fig. 7, Figure 10 and Figure 12, the power load bar that Figure 10 is shown as the power load maintainer of elastic part of the present invention is inserted in the structural representation of code-disc.When the power load maintainer of elastic part is in calibrating position, the side away from follower plate 332 of active plate 331 contacts with the end face of supporting seat 311, the side away from follower plate 332 of active plate 331 is seal face 3311, the axis of power load bar 500 and horizontal plane, the end of power load bar 500 is inserted in the longitudinal spacing hole 621 of code-disc 600, the termination of the test lead of power load bar 500 contacts with disk body 610 bottom surface of code-disc 600, and counterweight 700 is positioned on code-disc 600.
As shown in figure 14, force snesor 400 is connected with computing machine 820 by analog to digital converter 810.
In the present embodiment, elastic part comprises rod-type elastic part and tube-like elastic part, and elastic part is generally small-sized precise part.
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, Fig. 4 be shown as the power load maintainer of elastic part of the present invention from stiffness measurement position to the structural representation calibrating position moving process.The active plate 331 of flip piece 330 of the present invention is fixedly connected with rotating shaft body 320, operating personnel's hand rotation rotating shaft body 320, rotating shaft body 320 can be made to rotate relative to axle bed body 312, rotating shaft body 320 drives flip piece 330 and the power load maintainer be fixed on flip piece 330 rotates, in flip piece 330 rotation process, when axis and the plane-parallel of power load bar 500, the power load maintainer of elastic part is in stiffness measurement position, the follower plate 332 of flip piece 330 is connected with supporting seat 311, exert all one's strength load bar 500 position keep motionless, rigidity test can be carried out to elastic part.
As shown in Fig. 3, Fig. 6, Fig. 7 and Figure 14, when the side away from follower plate 332 of active plate 331 contacts with the end face of supporting seat 311, the axis of power load bar 500 and horizontal plane, now the power load maintainer of elastic part is in calibrating position, the end of power load bar 500 is inserted in the longitudinal spacing hole 621 of code-disc 600, the termination of the test lead of power load bar 500 contacts with disk body 610 bottom surface of code-disc 600, counterweight 700 is positioned on code-disc 600, can calibrate power load maintainer.
After power load bar 500 bears counterweight 700 applied pressure, force snesor 400 sends power load bar 500 to analog to digital converter 810 by force signal, the simulating signal of input is converted to digital signal by analog to digital converter 810, digital signal is flowed to computing machine 820 by analog to digital converter 810, computing machine 820 receives digital signal, and computing machine 820 is calibrated power load maintainer according to this digital signal.
Angle between active plate 331 and follower plate 332 is 90 degree, it is corresponding that the power load maintainer that this angle makes the extreme position in flip piece 330 rotation process and the power load maintainer of elastic part be in stiffness measurement position and elastic part is in calibrating position, defines the rotational angle of flip piece 330.
As shown in Fig. 3, Fig. 8 to Figure 10, Fig. 8 is shown as the cross-sectional view of the code-disc of the power load maintainer of elastic part of the present invention.Fig. 9 is shown as the structural representation of the power load bar of the power load maintainer of elastic part of the present invention.The power load bar that Figure 10 is shown as the power load maintainer of elastic part of the present invention is inserted in the structural representation of code-disc.The test lead of power load bar 500 comprises round platform portion 510 and the spherical part 520 be fixedly arranged on above round platform portion 510; Longitudinal spacing hole 621 comprise connect successively from top to bottom disk body connecting hole portion 6211, spacing hole portion 6212 and patchhole portion 6213; The diameter of the bottom in spacing hole portion 6212 and the diameter of junction, patchhole portion 6213 and the round platform portion 510 of power load bar 500 is identical, spacing hole portion 6212 and truncated cone-shaped, the gradient in spacing hole portion 6212 is identical with the gradient in the round platform portion 510 of power load bar 500, the height H 2 in the height H in disk body connecting hole portion 6,211 1 and spacing hole portion 6212 and the height H 3 that equals round platform portion 510 and spherical part 520 height H 4 and; The termination on the top of spherical part 520 contacts with disk body 610 bottom surface of code-disc 600.
In the present embodiment, spherical part 520 is hardened steel ball.This hardened steel ball contacts with elastic part when power load maintainer carries out stiffness measurement to elastic part, implements loading force to elastic part.
The round platform portion 510 of power load bar 500 of the present invention and the spherical part 520 be fixedly arranged on above round platform portion 510 are inserted in the longitudinal spacing hole 621 of code-disc 600, the termination on the top of spherical part 520 contacts with disk body 610 bottom surface of code-disc 600, counterweight 700 is positioned on code-disc 600, and the spherical part 520 of power load bar 500 fully can sense the power that counterweight 700 applies, the diameter of the bottom in spacing hole portion 6212 and the diameter of junction, patchhole portion 6213 and the round platform portion 510 of power load bar 500 is identical, the gradient in spacing hole portion 6212 is identical with the gradient in the round platform portion 510 of power load bar 500, the height H 1 in disk body connecting hole portion 6211 and the height H 2 in spacing hole portion 6212 and the height H 3 that equals round platform portion 510 and spherical part 520 height H 4 and, the exert all one's strength bottom in round platform portion 510 of load bar 500 of this structure may be stuck in the junction in spacing hole portion 6212 and patchhole portion 6213, and being inserted in after in the grafting block 620 of code-disc 600 of load bar 500 of exerting all one's strength, the axis of the grafting block 620 of code-disc 600 and the axis conllinear of power load bar 500, code-disc 600 self-centering, prevent the position of code-disc 600 from offseting.
As shown in Fig. 1, Fig. 3 and Figure 12, Figure 12 is shown as the structural representation of the flip piece of the power load maintainer of elastic part of the present invention.The close rotating shaft body 320 of follower plate 332 and the side relative with rotating shaft body 320 are the medial surface 3321 of follower plate 332; The medial surface 3321 of follower plate 332 is provided with L-type groove 333, L-type groove 333 extends to the direction away from active plate 331, the face parallel with the medial surface 3321 of follower plate 332 of L-type groove 333 is side card access surface 3331, and the face vertical with side card access surface 3331 of L-type groove 333 is top card junction 3332; When the power load maintainer of elastic part is in stiffness measurement position, the top card junction 3332 of L-type groove 333 contacts with the end face of supporting seat 311, the side card access surface 3331 of L-type groove 333 and one of them contacts side surfaces of supporting seat 311, the side contacted with the side card access surface 3331 of L-type groove 333 of supporting seat 311 is fastening surface 3111.
In the present embodiment, the angle between active plate 331 and follower plate 332 is exactly the angle between the bottom surface of active plate 331 and follower plate 332 medial surface 3321, and this angle is 90 degree.
The medial surface 3321 of follower plate 332 of the present invention is provided with L-type groove 333, when the power load maintainer of elastic part is in stiffness measurement position, the top card junction 3332 of L-type groove 333 contacts with the end face of supporting seat 311, the side card access surface 3331 of L-type groove 333 and one of them contacts side surfaces of supporting seat 311, supporting seat 311 blocks follower plate 332, prevent follower plate 332 from continuing to move down, supporting seat 311 plays position-limiting action, ensures axis and the plane-parallel of power load bar 500 simultaneously.
The side card access surface 3331 of L-type groove 333 is provided with at least one flap through hole 334; When the power load maintainer of elastic part is in stiffness measurement position, the fastening surface 3111 of supporting seat 311 is provided with the fixed orifice 3112 corresponding to flap through hole 334, follower plate 332 through flap through hole 334 and fixed orifice 3112, is fixedly connected with supporting seat 311 by securing member successively.In the present embodiment, the quantity of flap through hole 334 and fixed orifice 3112 is two.
Because the medial surface 3321 of follower plate 332 is provided with L-type groove 333, be fixedly connected with supporting seat 311 for the ease of follower plate 332, the side card access surface 3331 of L-type groove 333 arranges flap through hole 334, the fastening surface 3111 of supporting seat 311 arranges fixed orifice 3112, make follower plate 332 with supporting seat 311 for side direction is fixedly connected with, this structure is convenient to install, and stable connection.
As shown in Fig. 2, Fig. 3, Figure 11 and Figure 13, Figure 11 is shown as the structural representation of the rotating shaft body of the power load maintainer of elastic part of the present invention.The structural representation that the linkage block 321 that Figure 13 is shown as the power load maintainer of elastic part of the present invention is connected with flip piece 330.The quantity of axle bed body 312 is two, and two axle bed bodies 312 are oppositely arranged, and each axle bed body 312 is provided with and rotates through hole 3121; Rotating shaft body 320 comprises linkage block 321 and driving stem 322, linkage block 321 is arranged between two axle bed bodies 312, linkage block 321 is provided with interlock through hole 3211, driving stem 322 is inserted in the interlock through hole 3211 of linkage block 321, and be fixedly connected with linkage block 321, the two ends of driving stem 322 pass the rotation through hole 3121 of corresponding axle bed body 312 respectively, and driving stem 322 can rotate in rotation through hole 3121, and linkage block 321 is fixedly connected with the bottom surface of active plate 331.
Two axle bed bodies 312 are oppositely arranged, and linkage block 321 is arranged between two axle bed bodies 312, and driving stem 322 is inserted in the interlock through hole 3211 of linkage block 321, and is fixedly connected with linkage block 321, and this structure makes the rotation of rotating shaft body 320 more steady.Linkage block 321 is fixedly connected with active plate 331, makes operating personnel move active plate 331 and rotating shaft body 320 can be made to rotate, convenient operation.
As shown in Figure 12 and Figure 13, in the present embodiment, linkage block 321 and flip piece 330 are formed in one, and namely communications and liaison motion block 321 and flip piece 330 are formed by integrated processing and manufacturing; Linkage block 321 for one of them side be the rectangular block of semicircular arc side, angle between this linkage block 321 and active plate 331 is 90 degree, the axis of the semicircular arc side of linkage block 321 is parallel with the medial surface 3321 of follower plate 332 with the bottom surface of active plate 331, linkage block 321 and flip piece 330 are by integrated processing and manufacturing, ensure that the verticality between linkage block 321 and active plate 331, verticality between active plate 331 and follower plate 332, improves measuring accuracy of the present invention.
Four angles of supporting seat 311 are provided with plate connecting hole 313; Runner assembly 300 also comprises mounting blocks 340, mounting blocks 340 is arranged between movable block 200 and supporting seat 311, mounting blocks 340 is fixedly connected with movable block 200, mounting blocks 340 is rectangle, and four angles of mounting blocks 340 are provided with the block connecting hole (not shown) corresponding to plate connecting hole 313; Supporting seat 311 through plate connecting hole 313 and block connecting hole, is fixedly connected with mounting blocks 340 by securing member successively.
Mounting blocks 340 is arranged between movable block 200 and supporting seat 311, movable block 200 and supporting seat 311 are separated by mounting blocks 340, decrease the rotation of flip piece 330 on supporting seat 311 to the impact of movable block 200, also make the connection between movable block 200 and supporting seat 311 more firm, be convenient to movable block 200 and drive supporting seat 311 to move.
As shown in Fig. 2 and Figure 15, Figure 15 is shown as the structural representation of the force snesor of the power load maintainer of elastic part of the present invention and the receiving hole of auxiliary block junction, runner assembly 300 also comprises auxiliary block 900, and active plate 331 is connected with force snesor 400 by auxiliary block 900.Auxiliary block 900 is provided with two auxiliary through hole 910, force snesor 400 is provided with two receiving holes 410 corresponding to auxiliary through hole 910, securing member is successively through auxiliary through hole 910 and receiving hole 410, force snesor 400 is fixedly connected with auxiliary block 900, hold based on one end that force snesor 400 is connected with auxiliary block 900, one end that force snesor 400 is connected with power load bar 500 is force side.
The setting of auxiliary block 900 makes active plate 331 thickness reduce, and force snesor 400 is connected with active plate 331 by auxiliary block 900, and make structure more firm, structure is lighter and handier.
As shown in Fig. 3, Fig. 9 and Figure 16, the force side that Figure 16 is shown as the force snesor of the power load maintainer of elastic part of the present invention is provided with the structural representation of stressed through hole.The rectangular parallelepiped fixed part that power load bar 500 comprises rod body part and is connected with rod body part, rod body part is step round bar structure, rectangular parallelepiped fixed part is stiff end, the stiff end of power load bar 500 is provided with bar side through hole 530, bar side through hole 530 is two, the force side of force snesor 400 is provided with the stressed through hole 420 corresponding to bar side through hole 530, and the stiff end of the force side of force snesor 400 with power load bar 500 through stressed through hole 420 and bar side through hole 530, is fixedly connected with by securing member successively.
As shown in Figure 1 to Figure 3, driving frame 100 comprises transmission base 110 and leading screw 120, and leading screw 120 is fixedly installed in transmission base 110, the axis of the screw rod 121 of leading screw 120 and plane-parallel; Movable block 200 is provided with the connecting through hole 210 corresponding to the screw rod 121 of leading screw 120, movable block 200 is arranged on leading screw 120, the screw rod 121 of leading screw 120 passes the connecting through hole 210 of movable block 200, movable block 200 moves along the length direction of the screw rod 121 of leading screw 120, and the connecting through hole 210 of movable block 200 is provided with the internal thread corresponding to the screw rod 121 of leading screw 120.
The screw rod 121 of leading screw 120 rotates, and movable block 200 can be driven to move along the length direction of the screw rod 121 of leading screw 120, and movable block 200 moves and drives mounting blocks 340 and supporting seat 311 to move in the horizontal direction.Transmission base 110 is a few font, and this shape makes the structure of transmission base 110 simple, and material therefor is few, and bearing capacity is strong.The bottom of transmission base 110 is provided with pedestal through hole 130, and driving frame 100 also comprises the device base plate with mounting hole, and transmission base 110, by pedestal through hole 130 and mounting hole, is fixedly connected with device base plate by securing member.
Securing member in the present embodiment is screw.
The present invention is by means of only flip piece 330 drive load maintainer, the power load bar 500 of load maintainer of can exerting all one's strength rotates between calibrating position and stiffness measurement position, force snesor 400 is without the need to disassembling from power load maintainer, the power calibration operation of power load maintainer can be completed, avoid numerous and diverse operating process of force snesor 400 overall pulling down and remove the error produced in installation process.
The calibrating installation of the power load maintainer of elastic part of the present invention, its using method, comprises the following steps:
As Fig. 1, Fig. 2, Fig. 4, shown in Figure 11 and Figure 13, 1) installation of the power load maintainer of elastic part: transmission base 110 is fixedly connected with leading screw 120, movable block 200 is arranged on leading screw 120, the screw rod 121 of leading screw 120 passes the connecting through hole 210 of movable block 200, movable block 200 moves along the length direction of the screw rod 121 of leading screw 120, movable block 200 is fixedly installed mounting blocks 340, mounting blocks 340 is fixedly installed supporting seat 311, the end face of supporting seat 311 is fixedly installed two axle bed bodies 312 be oppositely arranged, linkage block 321 is between two axle bed bodies 312, driving stem 322 is inserted in the interlock through hole 3211 of linkage block 321, and be fixedly connected with linkage block 321, the two ends of driving stem 322 pass the rotation through hole 3121 of corresponding axle bed body 312 respectively, driving stem 322 can rotate in rotation through hole 3121, linkage block 321 is fixedly connected with the bottom surface of active plate 331, the end face of active plate 331 is fixedly installed auxiliary block 900, auxiliary block 900 is fixedly connected with the basis end of force snesor 400, the force side of force snesor 400 is fixedly connected with the stiff end of power load bar 500,
As Fig. 2 to Fig. 5, shown in Figure 12 and Figure 14, 2) the power load maintainer of elastic part is used for rigidity test: clamp system is fixedly installed on clamp base 20, clamp system comprises pressing plate pedestal 10, pressing plate pedestal 10 is provided with pressing plate body 11, rotary handle 12 is connected with pressing plate pedestal 10 and pressing plate body 11, elastic part 30 inserts in pressing plate body 11, rotation rotary handle 12 controls pressing plate body 11 and clamps elastic part 30, operating personnel rotate flip piece 330, the top card junction 3332 of L-type groove 333 contacts with the end face of supporting seat 311, after the side card access surface 3331 of L-type groove 333 contacts with the fastening surface 3111 of supporting seat 311, supporting seat 311 blocks follower plate 332, prevent follower plate 332 from continuing to move down, now, the axis of power load bar 500 and plane-parallel, securing member is successively through flap through hole 334 and fixed orifice 3112, follower plate 332 is fixedly connected with supporting seat 311, start leading screw 120, movable block 200 is made to drive supporting seat 311 and power load maintainer to move to the direction residing for elastic part 30, after the test lead of power load bar 500 contacts with elastic part 30, computing machine 820 control load maintainer carries out rigidity test to elastic part 30,
3) the power load maintainer of elastic part is calibrated: after power load maintainer completes rigidity test to elastic part 30, pull down being fixedly connected with the securing member of follower plate 332 with supporting seat 311, operating personnel rotate flip piece 330, the side away from follower plate 332 of active plate 331 contacts with the end face of supporting seat 311, now, the axis of power load bar 500 and horizontal plane, the end of power load bar 500 is inserted in the longitudinal spacing hole 621 of code-disc 600, the termination of the test lead of power load bar 500 contacts with disk body 610 bottom surface of code-disc 600, counterweight 700 is positioned on code-disc 600, after power load bar 500 bears counterweight 700 applied pressure, force snesor 400 sends power load bar 500 to analog to digital converter 810 by force signal, the simulating signal of input is converted to digital signal by analog to digital converter 810, digital signal is flowed to computing machine 820 by analog to digital converter 810, computing machine 820 receives digital signal, whether computing machine 820 departs from normal range according to the zero point of this digital signal judgment load maintainer, when departing from normal range the zero point of power load maintainer, the zero point of power load maintainer harmonizes by computing machine 820.
The present invention is used for the rigidity test of elastic part and calibrates power load maintainer, avoids numerous and diverse operating process of force snesor 400 overall pulling down and removes the error produced in installation process.Structure of the present invention is simple, easy to operate, use is reliable, reduce labour intensity, improves the precision of rigidity test.
To sum up, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (9)
1. a calibrating installation for the power load maintainer of elastic part, is characterized in that,
The power load maintainer of elastic part comprises: driving frame (100), movable block (200), runner assembly (300), force snesor (400) and power load bar (500);
Described movable block (200) is arranged on described driving frame (100), and is flexibly connected with described driving frame (100);
Described runner assembly (300) comprising: shaft seat (310), rotating shaft body (320) and flip piece (330);
The supporting seat (311) that described shaft seat (310) comprises rectangle and the axle bed body (312) be fixedly installed on the end face of described supporting seat (311), described supporting seat (311) is fixedly installed on described movable block (200), described axle bed body (312) is provided with rotates through hole (3121) accordingly with described rotating shaft body (320), the axis of described rotation through hole (3121) and plane-parallel, described rotating shaft body (320) passes described rotation through hole (3121), described rotating shaft body (320) is rotated relative to described axle bed body (312),
Described flip piece (330) comprises the active plate (331) and follower plate (332) that are fixedly connected with, angle between described active plate (331) and described follower plate (332) is 90 degree, and described active plate (331) is fixedly connected with described rotating shaft body (320);
When the power load maintainer of described elastic part is in stiffness measurement position, the axis of described power load bar (500) and plane-parallel, described follower plate (332) is connected with described supporting seat (311);
The two ends of described force snesor (400) are fixedly connected with described power load bar (500) with described active plate (331) respectively, one end be connected with described force snesor (400) in the two ends of described power load bar (500) is stiff end, and the other end of described power load bar (500) is test lead;
The calibrating installation of the power load maintainer of elastic part comprises code-disc (600) and counterweight (700), described code-disc (600) comprises disk body (610) and is fixed on the grafting block (620) of described disk body (610) bottom, described grafting block (620) inside is provided with longitudinal spacing hole (621), and the shape of described longitudinal spacing hole (621) is corresponding to the shape of the test lead of described power load bar (500);
When the power load maintainer of elastic part is in calibrating position, the side away from described follower plate (332) of described active plate (331) contacts with the end face of described supporting seat (311), the axis of described power load bar (500) and horizontal plane, the end of described power load bar (500) is inserted in the longitudinal spacing hole (621) of described code-disc (600), the termination of the test lead of described power load bar (500) contacts with disk body (610) bottom surface of described code-disc (600), described counterweight (700) is positioned on described code-disc (600).
2. the calibrating installation of the power load maintainer of elastic part according to claim 1, is characterized in that:
The test lead of described power load bar (500) comprises round platform portion (510) and is fixedly arranged on the spherical part (520) of described round platform portion (510) top;
Described longitudinal spacing hole (621) comprise connect successively from top to bottom disk body connecting hole portion (6211), spacing hole portion (6212) and patchhole portion (6213);
Described spacing hole portion (6212) and truncated cone-shaped, the diameter of the bottom in described spacing hole portion (6212) and the described diameter of patchhole portion (6213) junction and the round platform portion (510) of described power load bar (500) is identical, the gradient of described spacing hole portion (6212) is identical with the gradient in the round platform portion (510) of described power load bar (500), the height of described disk body connecting hole portion (6211) and the height in described spacing hole portion (6212) and equal the height of described round platform portion (510) and the height of described spherical part (520) with.
3. the calibrating installation of the power load maintainer of elastic part according to claim 1, is characterized in that:
The side of the close described rotating shaft body (320) of described follower plate (332) is the medial surface (3321) of described follower plate (332);
The medial surface (3321) of described follower plate (332) is provided with L-type groove (333), described L-type groove (333) extends to the direction away from described active plate (331), the face parallel with the medial surface (3321) of described follower plate (332) of described L-type groove (333) is side card access surface (3331), and the face vertical with described side card access surface (3331) of described L-type groove (333) is top card junction (3332);
When the power load maintainer of described elastic part is in stiffness measurement position, the top card junction (3332) of described L-type groove (333) contacts with the end face of described supporting seat (311), the side card access surface (3331) of described L-type groove (333) and one of them contacts side surfaces of described supporting seat (311).
4. the calibrating installation of the power load maintainer of elastic part according to claim 3, is characterized in that:
The side card access surface (3331) of described L-type groove (333) is provided with at least one flap through hole (334);
When the power load maintainer of described elastic part is in stiffness measurement position, the side contacted with the side card access surface (3331) of described L-type groove (333) of described supporting seat (311) is fastening surface (3111), described fastening surface (3111) is provided with the corresponding fixed orifice (3112) with described flap through hole (334), described follower plate (332) through described flap through hole (334) and described fixed orifice (3112), is fixedly connected with described supporting seat (311) by securing member successively.
5. the calibrating installation of the power load maintainer of elastic part according to claim 1, is characterized in that:
The quantity of described axle bed body (312) is two;
Described rotating shaft body (320) comprises linkage block (321) and driving stem (322), described linkage block (321) is arranged between two described axle bed bodies (312), described linkage block (321) is provided with interlock through hole (3211), described driving stem (322) is inserted in the interlock through hole (3211) of described linkage block (321), and be fixedly connected with described linkage block (321), the two ends of described driving stem (322) pass the rotation through hole (3121) of corresponding described axle bed body (312) respectively, described linkage block (321) is fixedly connected with described active plate (331).
6. the calibrating installation of the power load maintainer of elastic part according to claim 1, is characterized in that:
Four angles of described supporting seat (311) are provided with plate connecting hole (313);
Described runner assembly (300) also comprises mounting blocks (340), described mounting blocks (340) is arranged between described movable block (200) and described supporting seat (311), described mounting blocks (340) is fixedly connected with described movable block (200), described mounting blocks (340) is rectangle, and four angles of described mounting blocks (340) are provided with the corresponding block connecting hole with described plate connecting hole (313);
Described supporting seat (311) through described plate connecting hole (313) and described piece of connecting hole, is fixedly connected with described mounting blocks (340) by securing member successively.
7. the calibrating installation of the power load maintainer of elastic part according to claim 1, it is characterized in that: described runner assembly (300) also comprises auxiliary block (900), described active plate (331) is connected with described force snesor (400) by described auxiliary block (900).
8. according to the calibrating installation of the power load maintainer of elastic part according to claim 1, it is characterized in that: described driving frame (100) comprises transmission base (110) and leading screw (120), described leading screw (120) is fixedly installed in described transmission base (110), the axis of the screw rod (121) of described leading screw (120) and plane-parallel; Described movable block (200) is provided with the corresponding connecting through hole (210) with the screw rod of described leading screw (120) (121), the screw rod (121) of described leading screw (120) passes the connecting through hole (210) of described movable block (200), and described movable block (200) moves along the length direction of the screw rod (121) of described leading screw (120).
9. according to the calibrating installation of the power load maintainer of elastic part according to claim 1, it is characterized in that: the power load maintainer of described elastic part also comprises analog to digital converter (810) and computing machine (820), and described force snesor (400) is connected with described computing machine (820) by described analog to digital converter (810).
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| CN201410345086.1A CN105277312B (en) | 2014-07-18 | 2014-07-18 | The calibrating installation of the power load maintainer of elastic part |
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| CN105277312B (en) | 2017-11-03 |
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