CN112798209B - Clamp for vibration experiment of automobile part - Google Patents
Clamp for vibration experiment of automobile part Download PDFInfo
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- CN112798209B CN112798209B CN202110137403.0A CN202110137403A CN112798209B CN 112798209 B CN112798209 B CN 112798209B CN 202110137403 A CN202110137403 A CN 202110137403A CN 112798209 B CN112798209 B CN 112798209B
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- 238000002474 experimental method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000009434 installation Methods 0.000 claims description 33
- 230000003044 adaptive effect Effects 0.000 claims description 11
- 238000013461 design Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 9
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a clamp for vibration experiments of automobile parts, which comprises a base, a first adjustable base, a second adjustable base, a base for height adjustment, a height adjustment mechanism and a self-adaptive bolt mechanism, wherein the base is provided with a first support, a second support and a first support; a plurality of parallel sliding rails are arranged on the base; the first adjustable base, the second adjustable base and the base for height adjustment are all arranged on the sliding rail of the base and can slide along the sliding rail; the height adjusting base is U-shaped, and two sides of the middle part are provided with vertical inclined grooves; the height adjusting mechanism is positioned on the base for height adjustment, and two ends of the height adjusting mechanism can slide up and down along the chute so as to adjust the height; the self-adaptive bolt mechanism is fixed on the base for height adjustment, and the self-adaptive bolt mechanism clamps the automobile part after the height adjustment mechanism adjusts the height. The invention has the advantages of modularized design, convenient replacement, assembly and disassembly, strong universality and convenient and fast movement and disassembly of the machine.
Description
Technical Field
The invention relates to a supporting device, in particular to a clamp for vibration experiments of automobile parts.
Background
The vibration frequency of the automobile parts exists in the actual running process, so that the automobile parts are required to adapt to the vibration frequency of most of the ordinary running road conditions. While the automobile has a vibration-proof system during running, parts are subjected to certain vibration, and the parts may be subjected to vibration to break. In order to ensure the safety of parts, a vibration test is carried out before actual production, so that the vibration test can adapt to the vibration frequency under normal running. Vibration testing simulates the various vibration environments encountered in transportation, installation, and use environments, and simulates the effects of various vibration environments in transportation, installation, and use of a product to determine whether the product is capable of withstanding various environmental vibrations. Vibration tests are used for evaluating the resistance of components, parts and the whole machine in the expected use environment. There is no good solution for clamping different parts during vibration testing.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the clamp for the vibration experiment of the automobile part, which has the advantages of modularized design, strong universality, simple and convenient operation, high efficiency and convenient assembly and disassembly. The specific technical scheme is as follows:
the fixture for the vibration experiment of the automobile part comprises a base, a first adjustable base, a second adjustable base, a base for height adjustment, a height adjustment mechanism and a self-adaptive bolt mechanism;
a plurality of parallel sliding rails are arranged on the base;
The first adjustable base, the second adjustable base and the base for height adjustment are all arranged on the sliding rail of the base and can slide along the sliding rail;
The height adjusting base is U-shaped, and two sides of the middle part are provided with vertical inclined grooves;
the height adjusting mechanism is positioned on the base for height adjustment, and two ends of the height adjusting mechanism can slide up and down along the chute so as to adjust the height;
The self-adaptive bolt mechanism is fixed on the base for height adjustment, and clamps the automobile parts after the height adjustment mechanism adjusts the height.
Further, the first adjustable base comprises a part mounting table, an upper moving slide block and a lower moving slide block from top to bottom in sequence;
The part mounting platform comprises two vertical studs, a part supporting platform and a basic platform; the stud is fixed on a part supporting platform, the part supporting platform is fixed on a foundation platform, and a first mounting through hole is formed in the middle of the foundation platform;
The upper moving slide block comprises a slide block base and a fixed block fixed on the slide block base, and the slide block base is also provided with a first T-shaped slide groove;
the lower moving slide block comprises a T-shaped block and a base, and a second T-shaped chute is formed in the base;
The lower moving slide block is arranged on the parallel slide rail of the base through a second T-shaped slide groove and limited through a screw; the upper moving slide block is connected with the first T-shaped slide groove of the upper moving slide block through the T-shaped block and is fixed in the first installation through hole of the part installation table through the fixing block, so that the upper moving slide block is fixed with the part installation table.
Further, the second adjustable base and the first adjustable base are identical in structure, but only one stud is arranged on the part mounting table.
Further, the height adjusting mechanism comprises a driving installation table, a height adjusting wheel, an installation shaft, a driving gear, a first stepping motor, a driven rack, a height adjusting wheel installation lower frame and a height adjusting wheel installation upper frame;
the first stepping motor is fixedly arranged on the side wall of the driving installation table, and the driving gear is arranged on the first stepping motor;
The top and the bottom of the lower height adjusting wheel mounting frame and the top of the upper height adjusting wheel mounting frame are in sliding connection in a sliding groove sliding rail mode, a first rack mounting groove and a second rack mounting groove are respectively formed in the bottoms of the lower height adjusting wheel mounting frame and the top of the upper height adjusting wheel mounting frame, two driven racks are respectively mounted in the two rack mounting grooves, and the two driven racks are meshed with the driving gear, but the moving directions are opposite;
The height adjusting wheels are four, wherein two height adjusting wheels are oppositely arranged at two sides of the lower height adjusting wheel mounting frame through mounting shafts, and the other two height adjusting wheels are oppositely arranged at two sides of the upper height adjusting wheel mounting frame through another mounting shaft.
Further, the self-adaptive bolt mechanism comprises a spiral limiting block, a driving round table, a mounting cylinder, a tightening cylinder, a driving screw rod, a coupler, a threaded rod, a second stepping motor and a mounting plate;
The mounting plate is fixedly connected to the driving mounting table, and the second stepping motor is mounted on the mounting plate; the number of the threaded rods is four, one end of the threaded rod is fixed on the second stepping motor, and the other end of the threaded rod is connected with the fixed cylinder; the second stepping motor is connected with the driving screw rod through a coupler; the driving screw rod passes through a second screw rod installation threaded hole in the middle of the fixed cylinder and a first screw rod installation threaded hole of the driving round table and is in threaded connection with the second screw rod installation threaded hole; the driving round table is arranged in a driving round table mounting hole, three spiral limiting blocks are placed in a spiral limiting block mounting hole of the mounting cylinder, and the bottom of the driving round table is screwed into an axial spiral driving groove formed in the outer part of the driving round table;
The second stepping motor rotates to drive the driving screw rod to rotate, so that the driving round table is driven to axially rotate; the spiral limiting block axially and radially moves along an axial spiral driving groove of the driving round table simultaneously, and is ejected out of a spiral limiting block mounting hole of the mounting cylinder, so that the automobile part is positioned between the spiral limiting block and the fastening cylinder.
The beneficial effects of the invention are as follows:
The clamp for the vibration test of the automobile part can simulate the vibration test under the original installation condition, can automatically adjust the height, is convenient for an experimenter to use, and reduces the installation time; the fixture for the vibration experiment of the automobile part is in modularized design, convenient to replace, mount and dismount, high in universality and convenient in space realization.
Drawings
FIG. 1 is a schematic view showing the overall structure of a jig for vibration experiments of automobile parts according to the present invention;
FIG. 2 is a schematic view of the structure of the first adjustable base;
FIG. 3 is a schematic structural view of a part mount of the first adjustable base;
FIG. 4 is a schematic view of the structure of the upper movable slider of the first adjustable base;
FIG. 5 is a schematic view of the structure of the lower movable slider of the first adjustable base;
FIG. 6 is a schematic view of the structure of the height-adjusting base;
FIG. 7 is a schematic view of a height adjustment mechanism;
FIG. 8 is a schematic view of the structure of the drive mounting table of the height adjustment mechanism;
FIG. 9 is a schematic view of the structure of the height adjustment wheel mounting lower frame of the height adjustment mechanism;
FIG. 10 is a schematic view of the structure of the height adjustment wheel mounting upper frame of the height adjustment mechanism;
FIG. 11 is a schematic structural view of an adaptive bolt mechanism;
FIG. 12 is a schematic view of the structure of a screw stop block of the adaptive bolt mechanism;
fig. 13 is a schematic structural view of a driving round table of the adaptive bolt mechanism;
FIG. 14 is a schematic view of the mounting cylinder of the adaptive bolt mechanism;
FIG. 15 is a schematic view of the structure of the tightening cylinder of the adaptive bolt mechanism;
FIG. 16 is a schematic view of the adaptive bolt mechanism clamping part;
fig. 17 is a schematic structural view of the second adjustable base 7.
In the drawing the view of the figure, base 1, first adjustable base 2, automobile part 3, height adjustment base 4, height adjustment mechanism 5, adaptive bolt mechanism 6, second adjustable base 7, part mount 21, first limit screw 22, upper moving slide 23, lower moving slide 24, second limit screw 25, stud 211, part support platform 212, base platform 213, first mounting through hole 2131, slide base 231, fixing block 232, first T-shaped slide 2311, first limit hole 2312, T-shaped block 241, base 242, second T-shaped slide 2421, fixing hole 2422, chute 41, driving mount 51, height adjustment wheel 52, mounting shaft 53, driving gear 54, first stepping motor 55, driven rack 56 the height adjustment wheel mounting lower frame 57, the height adjustment wheel mounting upper frame 58, the reinforcing rib 511, the stepping motor mounting table 512, the first height adjustment wheel mounting hole 571, the first sliding rail 572, the first rack mounting groove 573, the first sliding groove 582, the second height adjustment wheel mounting hole 581, the second rack mounting groove 583, the screw stopper 61, the driving round table 62, the mounting cylinder 63, the tightening cylinder 64, the driving screw 65, the coupling 66, the threaded rod 67, the second stepping motor 68, the mounting plate 69, the T-shaped circular arc rail 611, the axial screw driving groove 621, the first screw mounting screw hole 622, the screw stopper mounting hole 631, the driving round table mounting hole 632, and the second screw mounting screw hole 641.
Detailed Description
The objects and effects of the present invention will become more apparent from the following detailed description of the preferred embodiments and the accompanying drawings, it being understood that the specific embodiments described herein are merely illustrative of the invention and not limiting thereof.
As shown in fig. 1, the fixture for vibration experiments of automobile parts of the present invention comprises a base 1, a first adjustable base 2, a height adjustment base 4, a height adjustment mechanism 5, an adaptive bolt mechanism 6, and a second adjustable base 7;
A plurality of parallel sliding rails are arranged on the base 1; the first adjustable base 2, the second adjustable base 7 and the height adjusting base 4 are all arranged on the sliding rail of the base 1 and can slide along the sliding rail; the height adjusting base 4 is U-shaped, and two sides of the middle part are provided with vertical inclined grooves; the height adjusting mechanism 5 is positioned on the height adjusting base 4, and both ends of the height adjusting mechanism can slide up and down along the chute so as to adjust the height; the self-adaptive bolt mechanism 6 is fixed on the height adjusting base 4, and after the height adjusting mechanism 5 adjusts the height, the self-adaptive bolt mechanism 6 clamps the automobile part.
As shown in fig. 2, the first adjustable base 2 includes a part mounting table 21, an upper moving slider 23, and a lower moving slider 24 in this order from top to bottom.
As shown in fig. 3, the part mount 21 includes two vertical studs 211, a part support platform 212, and a base platform 213. The stud 211 is fixed on the part support platform 212, the part support platform 212 is fixed on the base platform 213, and a first installation through hole 2131 is formed in the middle of the base platform 213.
As shown in fig. 4, the upper moving slide 23 includes a slide base 231 and a fixing block 232 fixed on the slide base 231, and the slide base 231 is further provided with a first T-shaped slide slot 2311 and a first limiting hole 2312.
As shown in fig. 5, the lower moving slider 24 includes a T-shaped block 241 and a base 242, the T-shaped block 241 being fixed to the base 242; the base 242 is provided with a second T-shaped chute 2421 and a fixing hole 2422. The lower moving slide block 24 is mounted on the parallel slide rail of the base 1 through a second T-shaped slide groove 2421 and is fixed in the fixed hole 2422 through a screw for limiting; the first T-shaped sliding groove 2311 of the upper moving slide 23 is connected through the T-shaped block 241 and is limited by being screwed into the first limiting hole 2312 by a screw, and the upper moving slide 23 is fixed in the first mounting through hole 2131 of the part mounting table 21 by the fixing block 232, thereby being fixed with the part mounting table 21.
As shown in fig. 6, the height-adjusting base 4 is also fixed to the base 1 by a chute, and has a U-shape upper portion, and an inclined chute 41 is provided on a side surface of a middle portion of the U-shape.
As shown in fig. 7, the height adjusting mechanism 5 includes a drive mount table 51, a height adjusting wheel 52, a mount shaft 53, a drive gear 54, a first stepping motor 55, a driven rack 56, a height adjusting wheel mount lower frame 57, and a height adjusting wheel mount upper frame 58.
As shown in fig. 8, the drive mount 51 includes a reinforcing rib 511 and a stepping motor mount 512, and a side wall of the drive mount 51 side is fastened by the reinforcing rib 511. The first stepping motor 55 is fixedly mounted on the stepping motor mounting table 512 of the driving mounting table 51, and the driving gear 54 is mounted on the first stepping motor 55.
As shown in fig. 9, the height-adjustment-wheel-mounting lower frame 57 includes a first height-adjustment-wheel mounting hole 571, a first slide rail 572, and a first rack mounting groove 573.
As shown in fig. 10, the height-adjustment-wheel mounting upper frame 58 includes a second height-adjustment-wheel mounting hole 581 and a second rack mounting groove 583. The height-adjusting-wheel-mounting lower frame 57 and the height-adjusting-wheel-mounting upper frame 58 are slidably connected at the top and bottom in the form of slide rails, and the two driven racks 56 are respectively mounted in the first rack-mounting groove 573 and the second rack-mounting groove 583, and both are engaged with the driving gear 54, but the moving directions are opposite. The height adjustment wheels 52 are four, wherein two of the height adjustment wheels 52 are relatively mounted on both sides of the height adjustment wheel mounting lower frame 57 through the mounting shaft 53, and the other two of the height adjustment wheels 52 are relatively mounted on both sides of the height adjustment wheel mounting upper frame 58 through the other mounting shaft 53.
As shown in fig. 11, the adaptive bolt mechanism 6 includes a screw stopper 61, a driving round table 62, a mounting cylinder 63, a tightening cylinder 64, a driving screw 65, a coupling 66, a threaded rod 67, a second stepping motor 68, and a mounting plate 69.
As shown in fig. 12, one end of the spiral stopper 61 is provided with a T-shaped circular arc rail 611.
As shown in fig. 13, the driving round table 62 is a boss with a trapezoidal cross section, and includes an axial spiral driving groove 621 formed on the outside and a first screw mounting threaded hole 622 penetrating the inside, and the spiral limiting block 61 is screwed into the axial spiral driving groove 621 of the driving round table 62 through the T-shaped circular arc track 611.
As shown in fig. 14, the mounting cylinder 63 includes a screw stopper mounting hole 631 and a driving round table mounting hole 632, the driving round table 62 is mounted in the driving round table mounting hole 632, and three screw stoppers 61 slide into the screw stopper mounting hole 631 of the mounting cylinder 63 through the T-shaped circular arc rail 611.
As shown in fig. 15, the tightening cylinder 64 includes a second screw mounting screw hole 641 in the middle thereof.
The mounting plate 69 is fixedly connected to the driving mounting table 51, and the second stepping motor 68 is mounted on the mounting plate 69; four threaded rods 67 are provided, one end of each threaded rod is fixed on a second stepping motor 68, and the other end of each threaded rod is connected with the tightening cylinder 64; the second stepping motor 68 is connected with the driving screw 65 through a coupling 66; the driving screw 65 passes through and is in threaded connection with a second screw mounting threaded hole 641 which is tightly fixed at the middle part of the cylinder 64 and a first screw mounting threaded hole 622 which is used for driving the round table 62; the driving round table 62 is installed in the driving round table installation hole 633, the three spiral limiting blocks 61 slide into the spiral limiting block installation hole 631 of the installation cylinder 63 through the T-shaped circular arc rail 611, and the bottom of the driving round table 62 is screwed into the axial spiral driving groove 621 formed on the outer part of the driving round table 62.
The second stepper motor 68 rotates to drive the driving screw 65 to rotate, so as to drive the driving round table 62 to axially rotate; the screw stopper 61 moves axially and radially simultaneously along the axial screw driving groove 621 of the driving round table 62, is ejected from the screw stopper mounting hole 631 of the mounting cylinder 63, positions the automobile part between the screw stopper 61 and the tightening cylinder 64, and is a schematic view of a state in which the self-adaptive bolt mechanism clamps the part, as shown in fig. 16.
As shown in fig. 17, a schematic structural diagram of the second adjustable base 7 is shown. The first adjustable base 2 of the second adjustable base 7 has the same structure, and only one stud 211 is provided on the component mounting table 21.
The following is the installation process of the fixture for vibration experiment of automobile parts.
In the mounting process, the first adjustable base 2 and the second adjustable base 7 are firstly mounted, the part mounting table 21 of the first adjustable base 2 is mounted on the upper moving slide 23, then the upper moving slide 23 is mounted on the lower moving slide 24 through the cooperation of the first T-shaped slide groove 2311 and the T-shaped block 241, and then the lower moving slide 24 is mounted on the base 1 through the second T-shaped slide groove 2421. The second adjustable base 7 is similarly mounted on the base 1. The vehicle component 3 is then placed on the first adjustable base 2 and the second adjustable base 7.
Next, the height adjusting mechanism 5 is mounted, first, the first stepping motor 55 is mounted on the driving mounting table 51, the driving gear 54 is mounted on the first stepping motor 55, and then the driven rack 56 is mounted in the first rack mounting groove 573 and the second rack mounting groove 583 of the height adjusting wheel mounting lower frame 57 and the height adjusting wheel mounting upper frame 58. The height adjustment wheel mounting lower frame 57 and the height adjustment wheel mounting upper frame 58 are then mounted together by a chute slide rail, and then the upper and lower racks are mounted in mesh with the drive gear 54.
Immediately after the self-adaptive bolt mechanism 6 is installed, firstly, three spiral limited blocks 61 are placed into spiral limited block installation holes 631 of the installation cylinder 63, then the driving round table 62 is screwed in, then the driving screw rod 65 is screwed in a first screw rod installation threaded hole 622 of the driving round table 62, then the threaded rod 67 is fixed on the installation cylinder 63 by using bolts, then the fastening cylinder 64 is sleeved on the threaded rod 67, and the driving screw rod 65 is also screwed in a second screw rod installation threaded hole 641; the drive screw 65 is then coupled to a second stepper motor 68 by a coupling 66, the second stepper motor 68 being mounted on a mounting plate 69. The entire adaptive bolt mechanism 6 is then placed on the middle chute of the height adjustment base 4.
The working principle of the clamp for vibration experiments of automobile parts is as follows.
Firstly, after the first adjustable base 2 and the second adjustable base 7 are installed on the base 1, the automobile parts 3 are placed on the first adjustable base 2 and the second adjustable base 7, and according to the installation requirement of parts, the first adjustable base 2 and the second adjustable base 7 are adjusted to realize different displacement and rotation, so that the installation of the automobile parts 3 is facilitated. The first stepping motor 55 rotates to drive the driving gear 54 to rotate, and the driving gear 54 is meshed with the driven rack 56, so that the lower height adjusting wheel mounting frame 57 and the upper height adjusting wheel mounting frame 58 move in opposite directions to push the height adjusting wheels 52 on two sides to slide along the chute of the height adjusting base 4 to drive the vertical position of the whole height adjusting mechanism 5 to adjust, and after the specified position is reached, the height adjusting mechanism 5 can be fixed on the side surface of the height adjusting base 4 by using the fastening bolt. Then the second stepper motor 68 rotates to drive the driving screw 65 to rotate, so as to drive the driving round table 62 to axially rotate; the screw stopper 61 moves axially and radially simultaneously along the axial screw driving groove 621 of the driving round table 62, is ejected from the screw stopper mounting hole 631 of the mounting cylinder 63, and positions the automobile part between the screw stopper 61 and the tightening cylinder 64, as shown in fig. 16. The automotive parts are then bolted onto the studs of the first adjustable base 2 and the second adjustable base 7. Thus, the clamping of the whole automobile part is completed, and the vibration test can be performed. And after the test is finished, the stepping motor is driven to retract.
It will be appreciated by persons skilled in the art that the foregoing description is a preferred embodiment of the invention, and is not intended to limit the invention, but rather to limit the invention to the specific embodiments described, and that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for elements thereof, for the purposes of those skilled in the art. Modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (1)
1. The clamp for the vibration experiment of the automobile part is characterized by comprising a base (1), a first adjustable base (2), a second adjustable base (7), a base (4) for height adjustment, a height adjustment mechanism (5) and an adaptive bolt mechanism (6);
a plurality of parallel sliding rails are arranged on the base (1);
The first adjustable base (2), the second adjustable base (7) and the height adjusting base (4) are all arranged on the sliding rail of the base (1) and can slide along the sliding rail;
the height adjusting base (4) is U-shaped, and two sides of the middle part are provided with vertical inclined grooves;
The height adjusting mechanism (5) is positioned on the height adjusting base (4) and two ends of the height adjusting mechanism can slide up and down along the chute so as to adjust the height;
The self-adaptive bolt mechanism (6) is fixed on the height adjusting base (4), and after the height adjusting mechanism (5) is adjusted, the self-adaptive bolt mechanism (6) clamps the automobile part;
The first adjustable base (2) comprises a part mounting table (21), an upper moving slide block (23) and a lower moving slide block (24) from top to bottom in sequence;
the part mounting table (21) comprises two vertical studs (211), a part supporting platform (212) and a base platform (213); the stud (211) is fixed on the part supporting platform (212), the part supporting platform (212) is fixed on the base platform (213), and a first mounting through hole (2131) is formed in the middle of the base platform (213);
The upper moving slide block (23) comprises a slide block base (231) and a fixed block (232) fixed on the slide block base (231), and a first T-shaped slide groove (2311) is formed in the slide block base (231);
The lower moving slide block (24) comprises a T-shaped block (241) and a base (242), and a second T-shaped chute (2421) is formed in the base (242);
The lower moving slide block (24) is arranged on a parallel slide rail of the base (1) through a second T-shaped slide groove (2421) and is limited through a screw; the upper moving slide block (23) is fixed in a first mounting through hole (2131) of the part mounting table (21) through a fixing block (232) by connecting a first T-shaped slide groove (2311) of the upper moving slide block (23) through a T-shaped block (241), so as to be fixed with the part mounting table (21);
The second adjustable base (7) and the first adjustable base (2) have the same structure, but the number of studs on the part mounting table is only one;
the height adjusting mechanism (5) comprises a driving installation table (51), a height adjusting wheel (52), an installation shaft (53), a driving gear (54), a first stepping motor (55), a driven rack (56), a height adjusting wheel installation lower frame (57) and a height adjusting wheel installation upper frame (58);
The first stepping motor (55) is fixedly arranged on the side wall of the driving installation table (51), and the driving gear (54) is arranged on the first stepping motor (55);
The top and the bottom of the height adjusting wheel mounting lower frame (57) and the top of the height adjusting wheel mounting upper frame (58) are in sliding connection in a sliding way, a first rack mounting groove (573) and a second rack mounting groove (583) are respectively formed in the bottoms of the two lower frames, two driven racks (56) are respectively mounted in the two rack mounting grooves, and the two driven racks are meshed with the driving gear (54) but have opposite moving directions;
The four height adjusting wheels (52) are arranged, wherein two height adjusting wheels (52) are oppositely arranged at two sides of a lower height adjusting wheel mounting frame (57) through mounting shafts (53), and the other two height adjusting wheels are oppositely arranged at two sides of an upper height adjusting wheel mounting frame (58) through another mounting shaft (53);
the self-adaptive bolt mechanism (6) comprises a spiral limiting block (61), a driving round table (62), a mounting cylinder (63), a tightening cylinder (64), a driving screw (65), a coupler (66), a threaded rod (67), a second stepping motor (68) and a mounting plate (69);
The mounting plate (69) is fixedly connected to the driving mounting table (51), and the second stepping motor (68) is mounted on the mounting plate (69); four threaded rods (67) are arranged, one end of each threaded rod is fixed on a second stepping motor (68), and the other end of each threaded rod is connected with a tightening cylinder (64); the second stepping motor (68) is connected with the driving screw rod (65) through a coupler (66); the driving screw rod (65) passes through a second screw rod installation threaded hole (641) in the middle of the fastening cylinder (64) and a first screw rod installation threaded hole (622) of the driving round table (62) and is in threaded connection with the two; the driving round table (62) is arranged in the driving round table mounting hole (633), three spiral limiting blocks (61) are placed in the spiral limiting block mounting hole (631) of the mounting cylinder (63), and the bottom part of the driving round table is screwed into an axial spiral driving groove (621) formed in the outer part of the driving round table (62);
The second stepping motor (68) rotates to drive the driving screw rod (65) to rotate, so that the driving round table (62) is driven to axially rotate; the screw stopper (61) moves axially and radially simultaneously along an axial screw driving groove (621) of the driving round table (62), and is ejected from a screw stopper mounting hole (631) of the mounting cylinder (63), so that the automobile part is positioned between the screw stopper (61) and the tightening cylinder (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137403.0A CN112798209B (en) | 2021-02-01 | 2021-02-01 | Clamp for vibration experiment of automobile part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110137403.0A CN112798209B (en) | 2021-02-01 | 2021-02-01 | Clamp for vibration experiment of automobile part |
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| CN112798209A CN112798209A (en) | 2021-05-14 |
| CN112798209B true CN112798209B (en) | 2024-06-04 |
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| KR101450791B1 (en) * | 2013-09-11 | 2014-10-15 | 우신공업 주식회사 | Vibration test method and apparatus of vehicle parts |
| CN204255594U (en) * | 2014-11-19 | 2015-04-08 | 苏州华碧微科检测技术有限公司 | A kind of converter clamp for vibration test |
| CN205333279U (en) * | 2015-12-09 | 2016-06-22 | 武汉信测标准技术服务有限公司 | Novel car seat vibration testing test bench |
| CN106768754A (en) * | 2016-11-25 | 2017-05-31 | 北京新能源汽车股份有限公司 | Vibration test fixture |
| CN108972414A (en) * | 2018-09-11 | 2018-12-11 | 天津星原汽车零部件有限公司 | A kind of auto parts clamping device |
| CN110108480A (en) * | 2019-04-24 | 2019-08-09 | 三峡大学 | A kind of test bed and method of the diesel engine driveline vibrations mechanism study based on Hooks coupling universal coupling |
| CN111422588A (en) * | 2020-05-11 | 2020-07-17 | 中国计量大学 | Self-adaptive bolt vibration disc capable of being automatically adjusted |
| CN214667523U (en) * | 2021-02-01 | 2021-11-09 | 浙江工业大学 | Clamp for automobile part vibration experiment |
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| CN112798209A (en) | 2021-05-14 |
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