CN114310723A - Multi-direction acceleration test fixture for acceleration test machine - Google Patents
Multi-direction acceleration test fixture for acceleration test machine Download PDFInfo
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- CN114310723A CN114310723A CN202210062735.1A CN202210062735A CN114310723A CN 114310723 A CN114310723 A CN 114310723A CN 202210062735 A CN202210062735 A CN 202210062735A CN 114310723 A CN114310723 A CN 114310723A
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- 230000007246 mechanism Effects 0.000 abstract description 14
- 230000007306 turnover Effects 0.000 abstract description 4
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Abstract
The invention discloses a multi-direction acceleration test fixture for an acceleration test machine, belongs to the technical field of electronic information, and aims to solve the problems that the acceleration test fixture in the prior art is low in working efficiency and cannot realize multi-direction arbitrary angle tests. The test fixture provided by the invention comprises a vertical direction turnover mechanism and a horizontal direction rotation mechanism, wherein the vertical direction turnover mechanism realizes the direction adjustment of an upper surface and a lower surface of an electronic product, the horizontal direction rotation mechanism realizes the direction adjustment of a front surface, a rear surface, a left surface and a right surface of the electronic product, and the horizontal direction mechanism and the vertical direction mechanism are assembled together to form a complete fixture structure. The test fixture can complete acceleration tests in six directions only by being installed once, greatly shortens the time consumed by changing the direction, improves the test efficiency, and has a better application prospect in the technical field of electronic information.
Description
Technical Field
The invention belongs to the technical field of electronic information, and relates to a multi-direction acceleration test fixture for an acceleration test machine.
Background
When the existing rotating arm type centrifugal machine is used for acceleration test and the connecting position is changed, the test sample mounting clamp needs to be manually turned over, a large amount of manpower needs to be input, the operation process is complex and time-consuming, and potential safety hazards are increased.
For example, the acceleration tester clamp (CN 207197803U) includes a panel, a bottom plate, two triangular plates, and the like, wherein the panel has a front end face and a rear end face, four directions of up, down, left, and right are realized by forming a first fixing through hole on the front end face, and two directions of forward and backward are realized by forming a second through hole on the bottom plate. This anchor clamps need again when readjusting the direction clamping anchor clamps on the workstation to when switching backward forward, need dismantle the sample and re-clamp, the clamping many times, complex operation.
For example, a portable six-directional acceleration test jig (CN 105841992 a) includes a vertical rotation part, a horizontal rotation part, and a fixed support part, and can meet the test requirement of six directions. But the clamp cannot meet the clamping requirement of a specific direction test which is not six directions due to the fixing form of the vertical rotating part.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a multi-direction acceleration test fixture for an acceleration test machine, and aims to solve the technical problems that the acceleration test fixture in the prior art is low in working efficiency and cannot realize multi-direction arbitrary angle tests.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the invention provides a multidirectional acceleration test fixture for an acceleration test machine, which comprises an upper substrate, a lower substrate, a right support frame, a left support frame and a test mounting plate, wherein the upper substrate is provided with a first support hole;
the testing device comprises a lower substrate, an upper substrate, a right support frame, a left support frame, a test mounting plate, a left support frame, a right support frame, a left support frame, a test mounting plate and a plurality of threaded holes, wherein the lower substrate is horizontally arranged, the upper substrate is horizontally and fixedly connected above the lower substrate, the right support frame and the left support frame are respectively positioned above the upper substrate, the right support frame is vertically and fixedly connected at one end of the upper substrate, the left support frame is vertically and fixedly connected at the other end of the upper substrate, the upper side of the inner side wall of the right support frame and the upper side of the inner side wall of the left support frame are both provided with a transfer block, the test mounting plate is fixedly connected above the transfer block, and the central position of the test mounting plate is uniformly distributed with a plurality of threaded holes for fixing an electronic product test piece;
two first through holes and a bearing mounting table are arranged on one side, close to the right support frame, of the switching block and one side, close to the left support frame, of the switching block, bearings are sleeved on the bearing mounting tables, the bearing mounting tables are located between the two first through holes, four second through holes and one bearing mounting hole are formed in the right support frame and the left support frame, the four second through holes are uniformly distributed around the bearing mounting holes, and the two first through holes in the switching block are respectively connected with the second through holes in the right support frame and the second through holes in the left support frame correspondingly; the bearings are respectively fixed in the bearing mounting holes of the right support frame and the bearing mounting holes of the left support frame;
a first groove is formed in the center of the upper surface of the lower substrate, eight seventh through holes are uniformly formed in the periphery of the first groove, a slewing bearing outer ring is arranged in the first groove, a slewing bearing inner ring is arranged on the inner side wall of the slewing bearing outer ring, rollers are arranged between the slewing bearing outer ring and the slewing bearing inner ring, the slewing bearing inner ring is correspondingly connected with the seventh through holes, and eight eighth through holes are uniformly formed in the periphery of the outer part of the first groove; eight tenth through holes correspondingly connected with the slewing bearing outer ring are uniformly formed in the center of the upper substrate, second grooves are formed in the outer rings of the eight tenth through holes, and eight horizontal slewing fixing screws used for being connected with the eighth through holes are uniformly arranged in the second grooves.
Preferably, two semicircular grooves are formed in the periphery of the bearing mounting hole of the right support frame and the periphery of the bearing mounting hole of the left support frame, and the semicircular grooves are used for turning the transfer block by 0-90 degrees.
Preferably, the upper substrate is further provided with a knob plunger, four ninth through holes are uniformly formed around the eight eighth through holes, and the knob plunger penetrates through the upper substrate and is connected with any one of the ninth through holes.
Preferably, four third through holes are formed in the upper portion of the transfer block, and four fourth through holes are formed in the two sides of the test mounting plate;
and the fourth through holes are provided with test mounting plate fixing screws, and the switching block is fixed with the test mounting plate through the test mounting plate fixing screws.
Preferably, four fifth through holes are formed below the right supporting frame and below the left supporting frame, and four sixth through holes are formed in two sides of the upper substrate;
a right support frame fixing screw is mounted at each fifth through hole on the right support frame, and the right support frame is fixed with one side of the upper base plate through the right support frame fixing screw;
and a left support frame fixing screw is arranged at a fifth through hole on the left support frame, and the left support frame is fixed with the other side of the upper base plate through the left support frame fixing screw.
Preferably, the upper substrate with four angles departments of infrabasal plate all are equipped with the anchor clamps hole, the anchor clamps hole runs through the upper substrate with the infrabasal plate, the anchor clamps hole department of infrabasal plate all is equipped with anchor clamps set screw, the upper substrate with the infrabasal plate passes through anchor clamps set screw is fixed.
Preferably, the eight seventh through holes are provided with slewing bearing inner ring fixing screws, and the eight seventh through holes and the slewing bearing inner ring are fixed through the slewing bearing inner ring fixing screws.
Preferably, the eight tenth through holes are provided with fixing screws for the outer rings of the slewing bearings, and the eight tenth through holes and the outer rings of the slewing bearings are fixed through the fixing screws for the outer rings of the slewing bearings.
Preferably, the second through holes of the right support frame are provided with right support frame turning fixing screws, and the second through holes of the left support frame are provided with left support frame turning fixing screws;
and the two switching blocks are respectively fixed with the right support frame through the right support frame overturning fixing screws and fixed with the left support frame through the left support frame overturning fixing screws.
Compared with the prior art, the invention has the following beneficial effects:
the multi-direction acceleration test fixture for the acceleration test machine can complete all tests by only one-time clamping, reduces the working strength and improves the test working efficiency. The left support frame and the right support frame are arranged on the upper base plate to fix the transfer block, the test mounting plate is arranged on the transfer block, and the transfer block is rotated by the bearing to realize the turning of the test mounting table in the vertical direction, namely the turning in the vertical direction; turning in the vertical direction, mounting a rotary bearing inner ring, a rotary bearing outer ring and a roller in a first groove formed in the lower substrate, and uniformly forming eight tenth through holes correspondingly connected with the rotary bearing outer ring in the central position of the upper substrate; eight seventh through holes are uniformly formed in the periphery of the first groove, and the inner ring of the rotary bearing is correspondingly connected with the seventh through holes; and then eight eighth through holes are formed in the periphery outside the first groove, and horizontal rotary fixing screws connected with the eighth through holes are arranged in the second groove formed in the upper substrate, so that the front, back, left and right directions of the electronic product can be adjusted, and the electronic product can be turned over in the horizontal direction. The upper substrate is rotated clockwise or anticlockwise, and then the horizontal overturning in any direction is realized through the fixing of the eighth through hole and the horizontal rotary fixing screw. Therefore, the test fixture provided by the invention can realize conventional tests in all directions, namely, the front direction, the rear direction, the left direction, the right direction, the upper direction and the lower direction, can also realize tests in multiple directions at any angle, provides a solution for testing the acceleration of electronic products in multiple directions, and has a good application prospect in the technical field of electronic information.
Furthermore, two semicircular grooves are formed in the periphery of the bearing mounting hole of the right support frame and the periphery of the bearing mounting hole of the left support frame, so that the turning of the transfer block at 0-90 degrees can be realized, and the turning of the test mounting plate at 0-90 degrees can be realized.
Furthermore, the knob plunger is arranged on the upper substrate, four ninth through holes are uniformly formed in the periphery of the eight eighth through holes, the knob plunger penetrates through the upper substrate to be connected with any one of the ninth through holes, and horizontal movement of the upper substrate at four angles can be achieved.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a multi-directional fixture test mounting plate according to the present invention, shown in a horizontal position;
FIG. 2 is a schematic structural view of the multi-directional fixture test mounting plate of the present invention in an upright position;
FIG. 3 is an exploded view of the multi-directional clamp configuration of the present invention;
FIG. 4 is a schematic view of a vertical flip structure of the multi-directional fixture of the present invention;
FIG. 5 is a corresponding cross-sectional view of a partially enlarged view of the vertically flipped structure of FIG. 4;
FIG. 6 is a front view of a horizontal swivel structure of the multi-directional clamp of the present invention;
FIG. 7 is an exploded view of the horizontal swivel structure of the multi-directional clamp of the present invention;
FIG. 8 is a top view corresponding to a cross-sectional view of the horizontally-oriented swivel structure of FIG. 6;
fig. 9 is another embodiment of the present invention for realizing a structure of turning in any direction in the vertical direction.
Wherein: 1-testing the mounting plate; 2-a transfer block; 3-a bearing; 4-right support frame; 5-a left support frame; 6-an upper substrate; 7-knob plunger; 8-a slew bearing outer race; 9-inner rings of the slewing bearing; 10-a roller; 11-lower substrate; 12-test mounting plate fixing screw; 13-turning the right supporting frame to fix the screw; 14-turning the fixing screw of the left support frame; 15-left support frame fixing screw; 16-right support frame fixing screw; 17-horizontally turning the fixing screw; 18-slewing bearing outer ring fixing screws; 19-fixing screws on the inner ring of the slewing bearing; 20-clamp set screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is merely for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is described in further detail below with reference to the accompanying drawings:
the invention provides a multi-direction acceleration test fixture for an acceleration test machine, which comprises a vertical direction turnover mechanism and a horizontal direction rotation mechanism, wherein the vertical direction turnover mechanism realizes the direction adjustment of an upper surface and a lower surface of an electronic product, the horizontal direction rotation mechanism realizes the direction adjustment of a front surface, a rear surface, a left surface and a right surface of the electronic product, and the horizontal direction mechanism and the vertical direction mechanism are assembled together to form a complete fixture structure.
The multi-directional jig for acceleration test proposed by the present invention will be explained with reference to the following examples.
Horizontal direction gyration adjustment function: the mechanism comprises an upper substrate 6, a lower substrate 11, a slewing bearing, a knob plunger 7 and a fixing screw, wherein the lower substrate 11 is arranged on a sample mounting workbench of the acceleration centrifuge through the fixing screw, a slewing bearing inner ring 9 and the lower substrate 11 are fixed through a slewing bearing inner ring fixing screw 19 of the lower substrate, and a slewing bearing outer ring 8 and the upper substrate 6 are fixed through a slewing bearing outer ring fixing screw 18 of the upper substrate; the roller 10 is fixed inside by the slewing bearing inner ring 9 and the slewing bearing outer ring 8, the horizontal direction adjustment is realized by the rolling of the roller 10, and after the horizontal direction adjustment is finished, the upper substrate 6 and the lower substrate 11 are fixed by the right support frame fixing screw 16 and the left support frame fixing screw 15; a horizontal positioning hole is designed on the lower substrate 11, and a knob plunger can be automatically inserted into the positioning hole under the action of an internal spring to achieve the positioning function;
vertical direction upset adjustment function: the part of mechanism comprises a left support frame 5, a right support frame 4, a bearing 3, a transfer block 2, a test mounting plate 1 and a fixing screw. The test mounting plate 1 and the two switching blocks 2 are fixed through a test mounting plate fixing screw 12, the two switching blocks 2 are respectively connected with the left support frame 5 and the right support frame 4 through a bearing 3, the overturning function of the test mounting plate 1 is realized under the rotation of the bearing 3, and after the overturning adjustment is finished, the switching blocks 2 are fixed with the left support frame 5 and the right support frame 4 through fixing screws. The left support frame 5 and the right support frame 4 are connected to the upper base plate 6 through fixing screws to form a complete clamp.
Fig. 1-3 show a schematic structural view of a horizontal multi-directional fixture test mounting plate according to an embodiment of the present invention in fig. 1, fig. 2 shows a schematic structural view of a vertical multi-directional fixture test mounting plate according to the present invention in fig. 3, and fig. 3 shows an exploded schematic structural view of a multi-directional fixture according to the present invention. The jig includes: the test device comprises a test mounting plate 1, a switching block 2, a test mounting plate fixing screw 12, a right support frame 4, a left support frame 5, a right support frame overturning fixing screw 13, an upper substrate 6, a lower substrate 11, a left support frame fixing screw 15 and a right support frame fixing screw 16; the 11 levels of infrabasal plate are placed, and the 6 levels of upper substrate link firmly in the top of infrabasal plate 11, and right branch strut 4 and left branch strut 5 are located the top of upper substrate 6 respectively, and right branch strut 4 links firmly the one end at upper substrate 6 perpendicularly, and left branch strut (5) link firmly at the other end of upper substrate 6 perpendicularly, and the top of the 4 inside walls of right branch strut and the top of the 5 inside walls of left branch strut all are equipped with switching piece 2, and experimental mounting panel 1 links firmly in the top of switching piece 2.
Two first through holes and a bearing mounting table are respectively arranged on one side, close to the right support frame 4, of the switching block 2 and one side, close to the left support frame 5, of the switching block 2, a bearing 3 is sleeved on each bearing mounting table, each bearing mounting table is located between the two first through holes, four second through holes and one bearing mounting hole are respectively formed in the right support frame 4 and the left support frame 5, the four second through holes are uniformly distributed around the bearing mounting holes, and the bearings 3 are respectively fixed in the bearing mounting holes of the right support frame 4 and the bearing mounting holes of the left support frame 5; two first through-holes on the switching piece 2 correspond with the second through-hole on the right branch strut 4 and the second through-hole on the left branch strut 5 respectively and are connected, all are equipped with right branch strut upset set screw 13 on the second through-hole of right branch strut 4, all are equipped with left branch strut upset set screw 14 on the second through-hole of left branch strut 5, and two switching pieces 2 pass through with right branch strut 4 respectively right branch strut upset set screw 13 is fixed, and is fixed through left branch strut upset set screw 14 with left branch strut 5. Four third through holes have all been seted up to the top of switching piece 2, four fourth through holes have all been seted up to the both sides of experimental mounting panel 1, fourth through hole department all is equipped with experimental mounting panel set screw 12, experimental mounting panel 1 is installed on switching piece 2 through experimental mounting panel set screw 12, four fifth through holes have all been seted up to the below of right branch strut 4 and the below of left branch strut 5, four sixth through holes have all been seted up to the both sides of going up base plate 6, right branch strut set screw 16 is all installed to fifth through hole department on the right branch strut 4, left branch strut set screw 15 is all installed to fifth through hole department on the left branch strut 5, left branch strut 5 and right branch strut 4 are installed on last base plate 6 through left branch strut set screw 15 and right branch strut set screw 16. The test mounting plate 1 is kept in a horizontal state, and then the transfer block 2 is fixed through the right support frame overturning fixing screw 13 and the left support frame overturning fixing screw 14, so that the horizontal state of the test mounting plate 1 can be adjusted, as shown in fig. 3.
As shown in fig. 2 and fig. 3, in order to make the fixture test mounting plate 1 horizontally turn from fig. 1 to a vertical state, at first, the right support frame turning fixing screw 13 and the left support frame turning fixing screw 14 need to be loosened, then the test mounting plate 1 and the two transfer blocks 2 turn to a vertical state, at this moment, the second through holes on the right support frame 4 and the left support frame 5 will be aligned with the first through hole on the transfer block 2, the transfer blocks 2 are locked and fixed by the right support frame turning fixing screw 13 and the left support frame turning fixing screw 14, and the adjustment of the vertical state of the test mounting plate 1 can be completed.
As shown in fig. 3, which is an exploded schematic view of a multi-directional fixture structure according to an embodiment of the present invention, the multi-directional fixture structure includes: the test device comprises a test mounting plate 1, a switching block 2, a bearing 3, a right support frame 4, a left support frame 5, an upper base plate 6, a knob plunger 7, a slewing bearing outer ring 8, a slewing bearing inner ring 9, a roller 10, a lower base plate 11, a test mounting plate fixing screw 12, a right support frame overturning fixing screw 13, a left support frame overturning fixing screw 14, a left support frame fixing screw 15, a right support frame fixing screw 16, a horizontal slewing fixing screw 17, a slewing bearing outer ring fixing screw 18, a slewing bearing inner ring fixing screw 19 and a clamp fixing screw 20.
The clamp comprises two parts, namely a horizontal direction rotating structure and a vertical direction overturning structure, and the two parts are assembled together through a left support frame fixing screw 15 and a right support frame fixing screw 16. In order to more clearly describe the present invention, the horizontal direction swiveling structure and the vertical direction flipping structure will be described in further detail below.
FIG. 4 is a schematic view of a multi-directional fixture of an embodiment of the present invention, showing a vertical flip structure; threaded holes connected with electronic product test pieces are distributed in the test mounting plate 1, the threaded holes are uniformly distributed along the central shaft according to the mounting holes, and the distribution distance and the size can be designed according to the size of the electronic product. Four third through holes which are arranged with the test mounting plate 1 are distributed on the transfer block 2, and the third through holes are distributed along the center of the test mounting plate 1 in a symmetrical way; as shown in fig. 5, one side that switching piece 2 is close to right branch strut 4 all is equipped with two first through-holes and a bearing mount table with one side that switching piece 2 is close to left branch strut 5, all overlaps on the bearing mount table to be equipped with bearing 3, 3 inner rings of bearing and the cooperation of switching piece 2, the cooperation of bearing 3 outer lane and right branch strut 4, under the normal running fit of bearing 3, the center pin can be followed to experimental mounting panel 1 overturns to realize the upset of the vertical direction of anchor clamps. For keeping the state of the clamp after overturning, four second through holes distributed along the center of the bearing mounting hole are designed on the right support frame 4 and the left support frame 5, when the clamp test mounting plate 1 is horizontal or vertical, two second through holes always align with two first through holes on the bearing mounting table side of the switching block 2, the switching block 2 is fixed by the overturning fixing screw 13 of the right support frame and the overturning fixing screw 14 of the left support frame, and the state of the clamp after overturning is kept.
As shown in fig. 6 and 7, fig. 6 is a front view of a horizontal direction rotation structure of the multi-directional clamp according to the embodiment of the present invention, and fig. 7 is an exploded schematic view of the horizontal direction rotation structure of the multi-directional clamp according to the embodiment of the present invention; a first groove is formed in the center of the upper surface of the lower substrate 11, eight seventh through holes are uniformly formed in the periphery of the first groove, a slewing bearing outer ring 8 is arranged in the first groove, a slewing bearing inner ring 9 is arranged on the inner side wall of the slewing bearing outer ring 8, rollers 10 are arranged between the slewing bearing outer ring 8 and the slewing bearing inner ring 9, slewing bearing inner ring fixing screws 19 are arranged on the eight seventh through holes, the slewing bearing inner ring 9 and the seventh through holes are fixed through the slewing bearing inner ring fixing screws 19, and eight eighth through holes are uniformly formed in the periphery outside the first groove; eight tenth through holes correspondingly connected with the slewing bearing outer ring 8 are uniformly formed in the center of the upper substrate 6, slewing bearing outer ring fixing screws 18 are arranged on the eight tenth through holes, and the slewing bearing outer ring 8 and the tenth through holes are fixed through the slewing bearing outer ring fixing screws 18; and the outer rings of the eight tenth through holes are provided with second grooves, and eight horizontal rotary fixing screws 17 used for being connected with the eighth through holes are uniformly arranged in the second grooves.
Four corners departments of upper substrate 6 and infrabasal plate 11 all are equipped with the anchor clamps hole, and the anchor clamps hole runs through upper substrate 6 and infrabasal plate 11, and the anchor clamps hole department of infrabasal plate 11 all is equipped with anchor clamps set screw 20, and upper substrate 6 and infrabasal plate 11 pass through anchor clamps set screw 20 to be fixed, improve the convenience of anchor clamps installation. And (4) assembling the clamp on the workbench of the acceleration tester by adopting a clamp fixing screw 20 to penetrate through the clamp hole. As shown in fig. 8, eight seventh through holes are uniformly distributed in the center of the lower substrate 11, and slewing bearing inner ring fixing screws 19 are disposed on the eight seventh through holes, so that the lower substrate 11 and the slewing bearing inner ring 9 are fixed by the slewing bearing inner ring fixing screws 19. The slewing bearing is an independent complete component and consists of a slewing bearing inner ring 9, a slewing bearing outer ring 8 and a roller 10. Four fifth through holes are formed below the right supporting frame 4 and the left supporting frame 5 respectively, four sixth through holes are distributed on the left side and the right side of the upper base plate 6 respectively, a right supporting frame fixing screw 16 is mounted at each fifth through hole on the right supporting frame 4, and the right supporting frame 4 and one side of the upper base plate 6 are fixed through the right supporting frame fixing screw 16; and a left support frame fixing screw 15 is arranged at the fifth through hole on the left support frame 5, and the other side of the left support frame 5 and the other side of the upper base plate 6 are fixed through the left support frame fixing screw 15. The included angle between the two ends of the second groove on the upper substrate 6 and the center of the arc is 100 degrees. Eight eighth through holes are uniformly distributed on the diameter of the first groove of the lower substrate 11, when the upper substrate 6 rotates horizontally for any angle around the rotary bearing, at least 4 eighth through holes on the lower substrate 11 are exposed in the second groove of the upper substrate 6, at most 6 eighth through holes are exposed, and the fixture is fixed in the horizontal direction by assembling the horizontal rotary fixing screw 17 with the exposed eighth through holes on the lower substrate 11;
for promoting the quick location of four directions about the horizontal direction, still be equipped with knob plunger 7 on the upper substrate 6, four ninth through-holes have evenly been seted up all around to eight eighth through-holes, specific 4 interval 90 of design on lower substrate 11 with knob plunger 7 complex ninth through-holes, ninth through-hole position corresponds four directions about the level, at slewing bearing rotation regulation horizontal direction angle's in-process, knob plunger 7 runs through upper substrate 6 and is connected with arbitrary one ninth through-hole, knob plunger 7 can insert the locating hole automatically under the internal spring effect and realize the cooperation 11 locating hole positions of infrabasal plate also can be according to experimental required arbitrary direction customization design, realize anchor clamps arbitrary angle quick location of horizontal direction.
Referring to fig. 9, fig. 9 is another embodiment of the structure for realizing the turning in any direction in the vertical direction according to the present invention, two semicircular grooves are respectively designed around the bearing mounting hole of the right support frame 4 and the bearing mounting hole of the left support frame 5, and when the test mounting plate 1 and the adaptor block 2 are turned to any angle between 0 ° and 90 °, the turning fixing screw 13 of the right support frame and the turning fixing screw 14 of the left support frame can complete the fixing of the adaptor block, so as to fix and maintain the state of the fixture at any angle in the vertical direction.
According to the multidirectional acceleration test fixture for the acceleration test machine, the acceleration test in six directions can be completed only by mounting the fixture once, the time consumed by changing the direction is greatly shortened, the time for completing the acceleration test in the six directions is only 1 hour, and three tests can be performed within the time of the original one-time test. The multi-direction acceleration test fixture for the acceleration test machine can also realize the adjustment of the test direction of any angle in the horizontal direction, and carry out the acceleration test in the non-orthogonal direction (for example, the X direction deviates by 10 degrees), so that the test can be finished without external cooperation. Therefore, the multi-direction acceleration test fixture for the acceleration test machine can complete all tests by clamping once, so that the working strength is reduced, the test efficiency is improved, and more test values are created for departments.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A multi-direction acceleration test fixture for an acceleration test machine is characterized by comprising an upper base plate (6), a lower base plate (11), a right support frame (4), a left support frame (5) and a test mounting plate (1);
the lower substrate (11) is horizontally placed, the upper substrate (6) is horizontally and fixedly connected above the lower substrate (11), the right support frame (4) and the left support frame (5) are respectively positioned above the upper substrate (6), the right support frame (4) is vertically and fixedly connected with one end of the upper substrate (6), the left support frame (5) is vertically and fixedly connected with the other end of the upper substrate (6), the upper part of the inner side wall of the right support frame (4) and the upper part of the inner side wall of the left support frame (5) are respectively provided with a transfer block (2), the test mounting plate (1) is fixedly connected above the transfer block (2), and a plurality of threaded holes for fixing test pieces of electronic products are uniformly distributed at the central position of the test mounting plate (1);
two first through holes and a bearing mounting table are arranged on one side, close to a right support frame (4), of the transfer block (2) and one side, close to a left support frame (5), of the transfer block (2), a bearing (3) is sleeved on the bearing mounting table, the bearing mounting table is located between the two first through holes, four second through holes and one bearing mounting hole are formed in the right support frame (4) and the left support frame (5), the four second through holes are uniformly distributed around the bearing mounting hole, and the two first through holes in the transfer block (2) are correspondingly connected with the second through holes in the right support frame (4) and the second through holes in the left support frame (5) respectively; the bearings (3) are respectively fixed in the bearing mounting holes of the right support frame (4) and the bearing mounting holes of the left support frame (5);
a first groove is formed in the center of the upper surface of the lower substrate (11), eight seventh through holes are uniformly formed in the periphery of the first groove, a slewing bearing outer ring (8) is arranged in the first groove, a slewing bearing inner ring (9) is arranged on the inner side wall of the slewing bearing outer ring (8), rollers (10) are arranged between the slewing bearing outer ring (8) and the slewing bearing inner ring (9), the slewing bearing inner ring (9) is correspondingly connected with the seventh through holes, and eight eighth through holes are uniformly formed in the periphery outside the first groove; eight tenth through holes correspondingly connected with the slewing bearing outer ring (8) are uniformly formed in the center of the upper substrate (6), a second groove is formed in the outer ring of each of the eight tenth through holes, and eight horizontal slewing fixing screws (17) used for being connected with the eighth through holes are uniformly arranged in the second groove.
2. The multidirectional acceleration test fixture for the acceleration test machine according to claim 1, characterized in that two semicircular grooves are formed around the bearing mounting hole of the right support frame (4) and around the bearing mounting hole of the left support frame (5), and the semicircular grooves are used for realizing the turning of the transfer block (2) by 0-90 degrees.
3. The multidirectional acceleration test fixture for the acceleration test machine according to claim 1, wherein the upper base plate (6) is further provided with knob plungers (7), four ninth through holes are uniformly formed around the eight eighth through holes, and the knob plungers (7) penetrate through the upper base plate (6) and are connected with any one of the ninth through holes.
4. The multidirectional acceleration test fixture for the acceleration test machine according to claim 1, wherein four third through holes are formed above the transfer block (2), and four fourth through holes are formed on two sides of the test mounting plate (1);
the fourth through hole is provided with a test mounting plate fixing screw (12), and the switching block (2) is fixed to the test mounting plate (1) through the test mounting plate fixing screw (12).
5. The multidirectional acceleration test fixture for the acceleration test machine according to claim 1, wherein four fifth through holes are formed below the right support frame (4) and below the left support frame (5), and four sixth through holes are formed on both sides of the upper substrate (6);
a right support frame fixing screw (16) is mounted at a fifth through hole on the right support frame (4), and the right support frame (4) is fixed with one side of the upper base plate (6) through the right support frame fixing screw (16);
and a left support frame fixing screw (15) is installed at a fifth through hole on the left support frame (5), and the other side of the left support frame (5) and the upper base plate (6) is fixed through the left support frame fixing screw (15).
6. The multi-directional acceleration test fixture for the acceleration test machine according to claim 1, characterized in that, the four corners of the upper base plate (6) and the lower base plate (11) are provided with fixture holes, the fixture holes penetrate through the upper base plate (6) and the lower base plate (11), the fixture holes of the lower base plate (11) are provided with fixture fixing screws (20), and the upper base plate (6) and the lower base plate (11) are fixed by the fixture fixing screws (20).
7. The multidirectional acceleration test fixture for the acceleration test machine according to claim 1, wherein the eight seventh through holes are provided with slewing bearing inner ring fixing screws (19), and the eight seventh through holes and the slewing bearing inner ring (9) are fixed through the slewing bearing inner ring fixing screws (19).
8. The multidirectional acceleration test fixture for the acceleration test machine according to claim 1, wherein the eight tenth through holes are provided with slewing bearing outer ring fixing screws (18), and the eight tenth through holes and the slewing bearing outer ring (8) are fixed through the slewing bearing outer ring fixing screws (18).
9. The multidirectional acceleration test fixture for the acceleration test machine according to claim 1, wherein the second through holes of the right support frame (4) are provided with right support frame turning fixing screws (13), and the second through holes of the left support frame (5) are provided with left support frame turning fixing screws (14);
the two switching blocks (2) are respectively fixed with the right support frame (4) through the right support frame overturning fixing screws (13) and fixed with the left support frame (5) through the left support frame overturning fixing screws (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210062735.1A CN114310723A (en) | 2022-01-19 | 2022-01-19 | Multi-direction acceleration test fixture for acceleration test machine |
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| CN202210062735.1A CN114310723A (en) | 2022-01-19 | 2022-01-19 | Multi-direction acceleration test fixture for acceleration test machine |
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| CN114310723A true CN114310723A (en) | 2022-04-12 |
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