CN110146277B - Automobile part and assembly loading test bed for laboratory - Google Patents
Automobile part and assembly loading test bed for laboratory Download PDFInfo
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- CN110146277B CN110146277B CN201910564653.5A CN201910564653A CN110146277B CN 110146277 B CN110146277 B CN 110146277B CN 201910564653 A CN201910564653 A CN 201910564653A CN 110146277 B CN110146277 B CN 110146277B
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- 238000006243 chemical reaction Methods 0.000 claims description 30
- 238000005259 measurement Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 24
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
Abstract
The invention relates to the field of tools for automobile loading tests, and discloses an automobile part and assembly loading test bed for a laboratory. The loading test bed comprises a bottom plate, a portal frame, a first adjusting assembly, a second adjusting assembly, a third adjusting assembly, three loading pieces and a fourth adjusting assembly. The loading assembly is used for detecting the rigidity value of the to-be-detected piece. The first adjusting component is mounted on the portal frame and used for adjusting the measuring direction of the first loading piece. The loading test bed can be applied to a laboratory, so that students can conveniently carry out the loading test, and meanwhile, the test bed can also realize multi-station adjustment of the loading piece, so that multi-angle and multi-point loading detection is carried out on the piece to be tested, and the accuracy and the comprehensiveness of the rigidity value obtained by detection during test loading are improved.
Description
Technical Field
The invention relates to the field of tools for automobile loading tests, in particular to an automobile part and assembly loading test bed for a laboratory.
Background
The rigidity value detection of the automobile parts and the assembly thereof is one of factors whether the automobile parts meet the product requirements or not, and is also one of test subjects of students of the related professions of the automobile. When students need to test the problem, the students usually need to go to a nearby automobile part detection center to learn to see and learn, which not only takes trouble and is laborious, but also has certain traffic safety hidden trouble.
In addition, the existing loading test bed is complex in structure and single in function, the loading position of the loading piece on the test bed is relatively fixed, and multi-angle and multi-point loading detection is not convenient to carry out on the piece to be tested, so that the rigidity value obtained during test loading is not accurate and comprehensive enough, and the test requirement of the loading test in a laboratory can not be met gradually.
Disclosure of Invention
Aiming at the prior art, the invention provides an automobile part and assembly loading test bed for a laboratory, which can be applied to the laboratory, can be used for multi-angle and multi-point loading and detecting a piece to be detected by a loading piece, improves the accuracy of detecting the rigidity value of the piece to be detected, and has high universality and easy assembly.
The invention is realized by adopting the following technical scheme:
an automobile parts and assembly load test bench that laboratory was used for detecting the rigidity value of piece that awaits measuring, the load test bench includes:
a base plate for positioning the part to be measured;
a portal frame fixed on the bottom plate;
the three loading pieces are used for detecting different rigidity values of the piece to be detected; the three loading pieces are a first loading piece, a second loading piece and a third loading piece in sequence;
a first adjustment assembly mounted on the gantry for adjusting a measurement orientation of the first loader; the first adjusting component comprises two flange plates which are oppositely arranged, and mounting columns with two ends respectively fixed on the two flange plates; the two flanges are detachably arranged on the portal frame, and the first loading piece is fixed on the mounting column; adjusting the measuring azimuth of the first loading piece by adjusting the rotation angles of the two flange plates on the portal frame and/or adjusting the relative heights of the two flange plates on the portal frame;
a second adjustment assembly mounted on the base plate for adjusting the measurement orientation of the second loader; the second adjusting component comprises a reaction frame I and a clamping plate III; the first counter-force frame is fixed on the bottom plate, the third clamping plate is detachably arranged on the first counter-force frame, and the second loading piece is fixed on the third clamping plate; the measuring direction of the second loading piece is adjusted by adjusting the relative height of the clamping plate III on the first counter-force frame; and
a third adjustment assembly mounted on the base plate for adjusting the measurement orientation of the third loader; the third adjusting component comprises a second counter-force frame, a flat plate and a lifting table, wherein the second counter-force frame is fixed on the bottom plate, one end of the flat plate is detachably arranged on the second counter-force frame, and the other end of the flat plate opposite to the second counter-force frame is supported on the bottom plate through the lifting table; the third loading piece is fixed on the flat plate; and adjusting the measuring direction of the third loading piece by adjusting the relative height of the flat plate on the second counter-force frame.
Further, a plurality of strip-shaped thread grooves are distributed at the top end of the bottom plate in a crisscross mode.
Further, the portal frame comprises four upright posts and two cross beams, wherein the four upright posts are distributed in a rectangular shape and are vertically fixed on the bottom plate; the two cross beams are respectively fixed between the two adjacent upright posts in the transverse direction, and the height of the cross beams is larger than that of the mounting posts.
Further, a fourth adjusting component is arranged at the fixed connection part of the first loading piece and the mounting column.
Further, the fourth adjusting component comprises two clamping plates II, the two clamping plates II are detachably arranged on two opposite sides of the mounting column, and the mounting surface of the first loading piece is fixed on the opposite side of one clamping plate II; and adjusting the measuring azimuth of the first loading piece by adjusting the relative positions of the two clamping plates II in the extending directions of the two ends of the mounting column.
Further, the loading piece comprises an electric cylinder, a force sensor and a grating ruler, wherein the force sensor is fixed on the end part of a screw rod of the electric cylinder, and the grating ruler is arranged on the side face of the screw rod of the electric cylinder.
Further, a first clamping plate is fixed at the position, corresponding to one side of the flange plate, of the portal frame, a plurality of first through holes are formed in the surface of the flange plate in a surrounding mode, a plurality of second through holes are formed in the surface of the first clamping plate in a surrounding mode, and the first through holes correspond to the second through holes in position; the adjacent clamping plates I and the flange plate sequentially penetrate through the through holes II, the portal frame and the through holes I through bolts to be connected and fixed.
Further, the bottom of the flat plate, which is close to one side of the second reaction frame, is fixed on the second reaction frame through a triangular bracket.
Further, the lifting platform comprises a sleeve and a vertical rod, the top end of the sleeve is provided with an opening, the bottom end of the vertical rod is sleeved in the opening of the sleeve in a sliding manner, and the sleeve is fixedly connected with the vertical rod through a bolt; the top of pole setting is fixed the flat board is kept away from the bottom of three sides of support body.
Further, the loading test stand further comprises a plurality of diagonal braces, each diagonal brace is arranged on one side, away from the mounting column, of the upright post adjacent to the diagonal brace, and is used for laterally supporting the portal frame.
The beneficial effects of the invention are as follows:
1. the loading test bed can be applied to a laboratory, so that students can conveniently carry out the loading test, and meanwhile, the test bed can also realize multi-station adjustment of the loading piece, so that multi-angle and multi-point loading detection is carried out on the piece to be tested, and the accuracy and the comprehensiveness of the rigidity value obtained by detection during test loading are improved.
2. The mounting column can be fixed after rotating between the portal frames through the flange plate, and can also be changed along with the change of the height of the flange plate on the upright post, so that a loading piece fixed on the mounting column can adjust a plurality of detection orientations, and multi-angle multipoint detection is realized.
3. The loading piece can also be arranged on the clamping plate III and the flat plate, when the loading piece is arranged on the clamping plate III, the transverse loading detection test of the piece to be tested can be realized, and when the electric cylinder is arranged on the flat plate, the transverse loading detection test of the piece to be tested can also be realized, so that the test detection efficiency is effectively improved.
The loading test bed provided by the invention can detect various automobile parts and assemblies, has high universality, and is simple and easy to install.
Drawings
FIG. 1 is a perspective assembly view of a laboratory automobile part and assembly loading test stand according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of the combined upright and tie plate of FIG. 1;
FIG. 3 is a schematic top view of the flat panel of FIG. 1;
fig. 4 is a schematic structural view showing a combined state of the second fixing assembly, the diagonal brace and the pad plate in fig. 1.
Main symbol description:
1. a bottom plate; 2. a portal frame; 3. a mounting column; 5. a reaction frame I; 6. a clamping plate III; 7. a reaction frame II; 8. a flat plate; 9. a lifting table; 10. a first loading member; 12. a thread groove; 13. a column; 14. a cross beam; 15. a flange plate; 16. a clamping plate I; 17. a first through hole; 18. a second through hole; 19. a clamping plate II; 20. a third through hole; 21. a triangular bracket; 22. a sleeve; 23. a vertical rod; 24. diagonal bracing; 25. a through hole IV; 26. a backing plate; 27. a second loading member; 28. a third loading member; 29. and a clamping plate IV.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a perspective assembly view of a loading test stand for laboratory automobile parts and assemblies according to an embodiment of the present invention. The loading test bed comprises a bottom plate 1, a portal frame 2, a first adjusting assembly, a second adjusting assembly, a third adjusting assembly, three loading pieces, a fourth adjusting assembly and a diagonal brace 24. Wherein the three loaders are sequentially divided into a first loader 10, a second loader 27 and a third loader 28.
The base plate 1 is used for positioning the piece to be measured. The bottom plate 1 is a plate body with a rectangular shape as a whole, and in other embodiments, the bottom plate 1 may be a plate body with a square shape as a whole, so long as the stability of the whole structure of the bottom plate 1 is not affected, and other plate body structures may be adopted. In this embodiment, a plurality of elongated thread grooves 12 are crisscrossed on the top end of the bottom plate 1, so as to divide the top end of the bottom plate 1 into a plurality of square areas with the same size, thereby facilitating the installation and removal of each component on the bottom plate 1.
In this embodiment, the longitudinal section of the thread groove 12 may have a convex structure, and internal threads are distributed on the inner side of the groove wall of the thread groove 12 near the top end. In other embodiments, the longitudinal section of the thread groove 12 may also have a dovetail-shaped structure, so long as the installation of each component on the base plate 1 is not affected, and other structures are also possible.
Please refer to fig. 1 and 2. The portal frame 2 is a combined frame body with two integrally inverted U-shaped structures. The gantry 2 in this embodiment comprises a column 13 and a beam 14. The upright 13 is a square cross-section and hollow interior, and in other embodiments the upright 13 may be a rectangular cross-section and hollow interior, so long as the connection between the upright and other components is not affected, and may be other column structures.
In this embodiment, the number of the vertical posts 13 is four, and the vertical posts are rectangular on the bottom plate 1. The bottom end of the upright post 13 is welded with a base plate 26, and a through hole five (not shown) is formed in the base plate 26. The base plate 26 and the bottom plate 1 are sequentially screwed into the through hole five and the thread groove 12 through bolts to be connected and fixed, so that the upright support of the upright post 13 on the bottom plate 1 is realized. In addition, a plurality of through holes IV 25 are formed in four side faces of the upright post 13, and the through holes IV 25 can facilitate the installation and the disassembly of other components on the upright post 13.
The cross beam 14 is a square cross-section beam body with a hollow interior, and in other embodiments, the cross beam 14 may be a triangular cross-section beam body with a hollow interior, so long as the connection stability between the cross beam and the upright 13 is not affected, and other beam body structures may be adopted. In this embodiment, the cross beam 14 and the upright 13 can be mounted by two clamping plates, four 29.
The fourth clamping plate 29 is a plate body with a square shape as a whole, and in other embodiments, the fourth clamping plate 29 can be a plate body with a rectangular shape as a whole, so long as the connection between the two fourth clamping plates 29 is not affected, and other plate body structures can be adopted. And two sides of the plate surface of the clamping plate IV 29 are provided with a plurality of through holes II 18.
In this embodiment, one of the clamping plates four 29 is fixed to the end of the beam 14 by welding, the other clamping plate four 29 is attached to the other side of the upright 13 opposite to the beam 14, two adjacent clamping plates four 29 sequentially pass through two through holes two 18 corresponding to the positions of the two clamping plates four 29 by bolts, and then the end penetrated by the bolts is locked and fixed by nuts, so that the beam 14 is fixed to the upright 13.
The number of first adjustment assemblies in this embodiment is two, and two first adjustment assemblies are respectively arranged between two longitudinally adjacent upright posts 13, each first adjustment assembly comprising one mounting post 3 and two flanges 15.
The mounting post 3 is a beam body with a square longitudinal section, and in other embodiments, the mounting post 3 may be a beam body with a circular longitudinal section, so long as the mounting of the components thereon is not affected, and may also be other beam body structures. The height of the mounting post 3 in the vertical direction is smaller than the height of the cross beam 14.
Two flanges 15 are respectively fixed at two ends of each mounting column 3, in this embodiment, the flanges 15 are fixed with the ends of the mounting columns 3 by welding, and are attached to one side of the adjacent upright column 13. In other embodiments, the flange 15 and the mounting post 3 may be detachably connected by a screw, so long as the stability of the connection between the flange 15 and the mounting post 3 is not affected, and other connection manners are also possible. The disk surface of the flange 15 is provided with a plurality of first through holes 17 in a surrounding mode, and the first through holes 17 correspond to the fourth through holes 25 on the upright posts 13.
The gantry 2 is fixed with a clamping plate 16 at one side opposite to the flange 15 and corresponding to the flange 15. The plate surface of the clamping plate I16 is provided with a through hole III 20 in a surrounding mode. In this embodiment, the positions of the first through hole 17, the third through hole 20 and the fourth through hole 25 may correspond to each other, and after the first adjacent clamping plate 16 and the flange 15 sequentially pass through the third through hole 20, the fourth through hole 25 and the first through hole 17 through bolts, the end portion penetrated by the bolts is locked and fixed by nuts, so that the installation and fixation of the installation column 3 on the upright column 13 are realized.
And, by adjusting the rotation angle of the two flanges 15 on the gantry 2, the measurement orientation of the first loader 10 is adjusted. The mounting column 3 can be rotated circumferentially in the whole under the condition that the mounting column 3 is not connected with the upright column 13, the first through hole 17 can correspond to the third through hole 20 at the corresponding position on the first clamping plate 16 after being rotated, the mounting column 3 can be fixed after being rotated by using the bolts and nuts, and therefore the detection angle of the first loading piece 10 mounted on the mounting column 3 in the vertical direction is changed.
Alternatively, the measuring orientation of the first loader 10 is adjusted by adjusting the relative heights of the two flanges 15 on the gantry 2. The mounting column 3 can be wholly lifted or lowered under the condition that the mounting column 3 is not connected with the upright post 13, and then the mounting column 3 is fixed with the upright post 13 through the bolts, so that the detection height of the first loading piece 10 mounted on the mounting column 3 in the vertical direction is changed.
The second adjustment assembly is mounted on the base plate 1 and can be used to adjust the measuring orientation of the second loading member 27. The second adjusting component comprises a reaction frame I5 and a clamping plate III 6. The reaction frame one 5 is a frame body with a right triangle-shaped longitudinal section. In this embodiment, the first reaction frame 5 is fixed to the bottom plate 1 at the bottom of the mounting column 3. A backing plate 26 is also arranged at the bottom end of the first reaction frame 5, and a through hole five is formed in the backing plate 26. The backing plate 26 and the bottom plate 1 are sequentially screwed into the through hole five and the thread groove 12 through bolts to be connected and fixed, so that the reaction frame one 5 is vertically supported on the bottom plate 1.
The third clamping plate 6 is detachably arranged on the first reaction frame 5. And a clamping plate III 6 is transversely fixed on the reaction frame I5. In this embodiment, the third clamping plate 6 is connected to the side surface of the first reaction frame 5 in the vertical direction through a connecting rod (not labeled), and the connecting rod is connected to the side surface of the first reaction frame 5 through a screw.
The clamping plate III 6 and the connecting rod can be connected through screws or welded. In this embodiment, the third clamping plate 6 is a plate body that is square overall, and in other embodiments, the third clamping plate 6 may also be a plate body that is rectangular overall, so long as the connection between the third clamping plate 6 and the connecting rod is not affected, and other plate body structures may also be used.
The height of the third clamping plate 6 on the first reaction frame 5 can be adjusted by adjusting the screw connection position of the connecting rod on the vertical face of the first reaction frame 5, so that the measurement orientation adjustment of the second loading piece 27 is realized. Meanwhile, the third clamping plate 6 is provided with a plurality of mounting holes (not shown) which can facilitate the mounting and dismounting of the second loading piece 27 thereon.
A third adjustment assembly is mounted on the base plate 1 and can be used to adjust the measurement orientation of the third loading member 28. When a heavy load member is used, it is common to place the heavy load member on the third adjustment assembly. The third adjusting component comprises a reaction frame II 7, a flat plate 8 and a lifting table 9.
The reaction frame II 7 is a frame body with a right triangle-shaped longitudinal section. The reaction frame II 7 is fixed on the bottom plate 1. A backing plate 26 is also arranged at the bottom end of the reaction frame II 7, and a through hole V is formed in the backing plate 26. The backing plate 26 and the bottom plate 1 are sequentially screwed into the through hole five and the thread groove 12 through bolts to be connected and fixed, so that the reaction frame two 7 is vertically supported on the bottom plate 1. Meanwhile, a plurality of positioning holes (not labeled) are formed in the second counter-force frame 7.
Referring to fig. 3, fig. 3 is a schematic top view of the flat plate in fig. 1. One side of the reaction frame II 7 is provided with a flat plate 8 in a detachable mode. The flat plate 8 is a plate body having a rectangular shape as a whole. In this embodiment, the flat plate 8 and the second reaction frame 7 are connected by a triangular bracket 21. The number of the triangular brackets 21 in the present embodiment is two, and the two triangular brackets 21 are located on both sides of the bottom of the flat plate 8, respectively. The vertical surface of the triangular bracket 21 is connected with the positioning hole on the counter-force frame II 7 through a screw. The horizontal plane of the triangular bracket 21 is connected with the bottom end of the flat plate 8 through screws.
By adjusting the relative height of the plate 8 on the second reaction frame 7, the measuring orientation of the third loading element 28 is adjusted. When the mounting surface of the third loading member 28 is fixed to the flat plate 8, the transverse loading detection of the member to be tested can be performed. And the measuring orientation of the third loading member 28 can also be adjusted by the relative height of the plate 8 on the second counter-force bracket 7.
The bottom of the other end of the flat plate 8 opposite to the second reaction frame 7 is supported on the bottom plate 1 through a lifting table 9. The lifting table 9 can adjust the height of the flat plate 8 in the vertical direction. The lifting platform 9 in this embodiment comprises a sleeve 22 and a pole 23.
The sleeve 22 is a tubular body with a U-shaped opening at the top. In other embodiments, the sleeve 22 may be a tube with a rectangular opening at the top, so long as the fit between the sleeve and the upright 23 is not affected, and may be a tube with other structures. A plurality of adjusting holes (not shown) are vertically formed in both sides of the sleeve 22.
The pole 23 is a square pole body, and the bottom end of the pole 23 is slidably sleeved in the opening of the sleeve 22. The side wall of the upright 23 is also provided with an adjusting hole (not shown) corresponding to the sleeve 22. The sleeve 22 and the upright 23 are connected and fixed through two adjusting holes corresponding to the passing positions of bolts, and the top end of the upright 23 is fixedly connected with the bottom of the side, far away from the reaction frame II 7, of the flat plate 8 through bolts.
When the height of the flat plate 8 needs to be adjusted, firstly, the upright 23 is lifted or lowered in the sleeve 22 to drive the flat plate 8 to be adjusted to a proper height, then the upright 23 and the sleeve 22 are fixed through bolts passing through the two adjusting holes, and then the upright surface of the triangular bracket 21 is connected with the positioning holes at the corresponding positions on the side surfaces of the counter-force frame two 7 through bolts, so that the flat plate 8 is fixed, and the height adjustment of the flat plate 8 is realized.
Referring to fig. 1, three loading members are used to detect the stiffness values of different test pieces. A fourth adjusting assembly is arranged at the fixed connection of the first loading part 10 and the mounting column 3. The fourth adjustment assembly comprises two clamping plates 19. The second clamping plate 19 is a plate body with a square shape as a whole, and in other embodiments, the second clamping plate 19 may be a plate body with a rectangular shape as a whole, so long as the connection between the two clamping plates 19 is not affected, and other plate body structures may be also used.
And two clamping plates 19 are detachably mounted on opposite sides of the mounting post 3. The two clamping plates 19 are connected through a plurality of bolts and then are fastened and sleeved on the outer side of the mounting column 3, so that the two clamping plates 19 can move synchronously along with the mounting column 3. The mounting surface of the first loading member 10 is fixed on the opposite side of one of the clamping plates 19, and in this embodiment, the mounting surface of the first loading member 10 is connected with the clamping plate 19 through bolts, so that the mounting and dismounting are convenient.
By adjusting the relative positions of the two clamping plates 19 in the extending direction of the two ends of the mounting post 3, the measuring orientation of the first loading member 10 is adjusted. The two clamping plates 19 can be fixed at any position in the extending direction of the two ends of the mounting column 3, so as to change the measuring orientation of the first loading piece 10 in the longitudinal direction. The mounting surface of the second loading member 27 is mounted on the third clamping plate 6 by bolts. The mounting surface of the third loading member 28 is mounted on the flat plate 8 by bolts.
The first loader 10, the second loader 27, and the third loader 28 in this embodiment each include an electric cylinder (not shown), a force sensor (not shown), and a grating scale (not shown). In other embodiments the electric cylinder may also be a hydraulic cylinder or a pneumatic cylinder. When the electric cylinder is adopted, the force sensor is arranged at the top of the screw rod of the electric cylinder and is used for detecting the loading force. And the grating ruler is arranged on the side face of the screw rod of the electric cylinder, so that the axial displacement of the screw rod can be detected. When the electric cylinder is loaded, the force control and the displacement control are carried out. The force control means that the screw stops after being loaded to a certain force, and the displacement control means that the screw stops after advancing for a certain displacement.
Thus, before the electric cylinder is loaded, the clamp is placed at the corresponding detection position on the base plate 1, then the clamp is fixed on the base plate 1 by screwing the bolt into the thread groove 12 through the threaded hole of the clamp, and then the piece to be detected is fixed on the clamp. And selecting a proper detection position to carry out loading detection on the to-be-detected piece. When the electric cylinder is loaded, the screw rod advances along the axis. The screw rod has no loading force when the workpiece to be measured is not met at first, and the displacement is idle stroke. But after the end part of the screw rod meets the to-be-detected piece, loading force begins to be applied. Along with the continuous jacking of the screw rod, the loading force gradually becomes larger, and the displacement at the moment is the deformation of the piece to be measured. Finally, when the screw rod of the electric cylinder is loaded to the specified force or displacement, the screw rod stops advancing, and the loading is finished. The force sensor transmits the force change data during loading and the data of the measured displacement (the deformation of the surface of the to-be-measured piece) to a background terminal (such as a computer) for data processing and display. The tester can calculate the rigidity of the member to be measured according to the displayed force change and deformation change during loading.
Referring to fig. 1 and 4, the diagonal brace 24 is a cylinder with an isosceles trapezoid cross section, and the diagonal brace 24 can effectively support the upright post 13 in the portal frame 2 to prevent the upright post 13 from tilting and tilting after being stressed. The number of diagonal braces 24 is set to four in the present embodiment. The top end of each diagonal strut 24 is disposed on the side of the upright 13 adjacent thereto remote from the mounting post 3.
The top end of the diagonal brace 24 is fixedly provided with a clamping plate IV 29 in a welding mode, the other side of the upright post 13, which is opposite to the clamping plate IV 29 at the top end of the diagonal brace 24, is also provided with a clamping plate IV 29, and the two clamping plates IV 29 are fixed through bolts, so that the top of the diagonal brace 24 is fixed on the upright post 13. A backing plate 26 is also arranged at the bottom end of the diagonal brace 24, and a through hole five is formed in the backing plate 26. The backing plate 26 and the bottom plate 1 are sequentially screwed into the through hole five and the thread groove 12 through bolts to be connected and fixed, so that the diagonal bracing 24 is supported and fixed on the bottom plate 1.
The loading test bed can be applied to a laboratory, so that students can conveniently carry out the loading test, and meanwhile, the test bed can also realize multi-station adjustment of the loading piece, so that multi-angle and multi-point loading detection is carried out on the piece to be tested, and the accuracy and the comprehensiveness of the rigidity value obtained by detection during test loading are improved. The mounting column can be fixed after rotating between the portal frames through the flange plate, and can also be changed along with the change of the height of the flange plate on the upright post, so that a loading piece fixed on the mounting column can adjust a plurality of detection orientations, and multi-angle multipoint detection is realized. The loading piece can also be arranged on the clamping plate III and the flat plate, when the loading piece is arranged on the clamping plate III, the transverse loading detection test of the piece to be tested can be realized, and when the electric cylinder is arranged on the flat plate, the transverse loading detection test of the piece to be tested can also be realized, so that the test detection efficiency is effectively improved. The loading test bed provided by the invention can detect various automobile parts and assemblies, has high universality, and is simple and easy to install.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The utility model provides a car spare part and assembly load test bench that laboratory was used for detecting the rigidity value of piece that awaits measuring, its characterized in that, load test bench includes:
a base plate for positioning the part to be measured;
a portal frame fixed on the bottom plate;
the three loading pieces are used for detecting different rigidity values of the piece to be detected; the three loading pieces are a first loading piece, a second loading piece and a third loading piece in sequence;
a first adjustment assembly mounted on the gantry for adjusting a measurement orientation of the first loader; the first adjusting component comprises two flange plates which are oppositely arranged, and mounting columns with two ends respectively fixed on the two flange plates; the two flanges are detachably arranged on the portal frame, and the first loading piece is fixed on the mounting column; adjusting the measuring azimuth of the first loading piece by adjusting the rotation angles of the two flange plates on the portal frame and/or adjusting the relative heights of the two flange plates on the portal frame;
a second adjustment assembly mounted on the base plate for adjusting the measurement orientation of the second loader; the second adjusting component comprises a reaction frame I and a clamping plate III; the first counter-force frame is fixed on the bottom plate, the third clamping plate is detachably arranged on the first counter-force frame, and the second loading piece is fixed on the third clamping plate; the measuring direction of the second loading piece is adjusted by adjusting the relative height of the clamping plate III on the first counter-force frame; and
a third adjustment assembly mounted on the base plate for adjusting the measurement orientation of the third loader; the third adjusting component comprises a second counter-force frame, a flat plate and a lifting table, wherein the second counter-force frame is fixed on the bottom plate, one end of the flat plate is detachably arranged on the second counter-force frame, and the other end of the flat plate opposite to the second counter-force frame is supported on the bottom plate through the lifting table; the third loading piece is fixed on the flat plate; the measuring direction of the third loading piece is adjusted by adjusting the relative height of the flat plate on the second counter-force frame;
the portal frame comprises four upright posts and two cross beams, wherein the four upright posts are distributed in a rectangular shape and are vertically fixed on the bottom plate; the two cross beams are respectively fixed between two adjacent upright posts in the transverse direction, and the height of the cross beams is larger than that of the mounting posts;
a fourth adjusting component is arranged at the fixed connection part of the first loading piece and the mounting column;
the fourth adjusting component comprises two clamping plates II, the two clamping plates II are detachably arranged on two opposite sides of the mounting column, and the mounting surface of the first loading piece is fixed on the other opposite side of one clamping plate II; and adjusting the measuring azimuth of the first loading piece by adjusting the relative positions of the two clamping plates II in the extending directions of the two ends of the mounting column.
2. The laboratory automobile parts and assembly loading test stand of claim 1, wherein the top end of the bottom plate is crisscrossed with a plurality of elongated thread grooves.
3. The laboratory automobile parts and assembly loading test stand of claim 1, wherein the loading member comprises an electric cylinder, a force sensor and a grating ruler, the force sensor is fixed on the end part of a screw rod of the electric cylinder, and the grating ruler is arranged on the side face of the screw rod of the electric cylinder.
4. The laboratory automobile part and assembly loading test bed according to claim 1, wherein a first clamping plate is fixed at a position of the portal frame, which is opposite to one side of the flange plate and corresponds to the flange plate, a plurality of first through holes are formed in a surrounding mode on the surface of the flange plate, a plurality of second through holes are formed in a surrounding mode on the surface of the first clamping plate, and the first through holes correspond to the second through holes in position; the adjacent clamping plates I and the flange plate sequentially penetrate through the through holes II, the portal frame and the through holes I through bolts to be connected and fixed.
5. The laboratory automobile parts and assembly loading test stand of claim 1, wherein the bottom of the plate adjacent to the second reaction frame is fixed on the second reaction frame through a triangular bracket.
6. The laboratory automobile parts and assembly loading test bed according to claim 1, wherein the lifting platform comprises a sleeve and a vertical rod, the top end of the sleeve is provided with an opening, the bottom end of the vertical rod is sleeved in the opening of the sleeve in a sliding manner, and the sleeve and the vertical rod are fixedly connected through bolts; the top of the vertical rod is fixed at the bottom of one side of the flat plate, which is far away from the reaction frame II.
7. The laboratory automobile parts and assembly loading stand of claim 6, further comprising a plurality of diagonal braces, each of said diagonal braces being disposed adjacent to one side of said post remote from the mounting post for laterally supporting said portal frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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