CN217878257U

CN217878257U - Product vibration test fixture

Info

Publication number: CN217878257U
Application number: CN202221747845.3U
Authority: CN
Inventors: 顾宗伟; 张明涛; 许澎胜
Original assignee: Gettop Acoustic Co Ltd
Current assignee: Gettop Acoustic Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-11-22
Anticipated expiration: 2032-07-08

Abstract

The utility model provides a product vibration test fixture, its characterized in that: the product clamping device comprises a chassis, a positioning seat for installing a product is arranged on the chassis, a cover plate capable of compressing the product is arranged at one end of the positioning seat, one end of the cover plate is hinged to the base plate, a buckle capable of opening and closing is arranged on the chassis, the buckle is arranged at the other end of the cover plate, and the buckle can compress or release the corresponding end of the cover plate. One end of the cover plate is fixed through the buckle to replace a screwed screw in the prior art, so that a product can be quickly fixed and taken out, the problems of long operation time and high operation fatigue of the original fixing mode are solved, the operation strength is low, and the cover plate is suitable for long-term operation; once the height of the buckle is adjusted, the matching of the buckle and the cover plate is fixed, the abrasion degree is small, and the service life is long; and the height of the buckle can be adjusted according to different product heights so as to be universal to other product types with similar heights, and the applicability is wide.

Description

Product vibration test fixture

Technical Field

The utility model belongs to the technical field of the electronic product test and specifically relates to a product vibration test fixture is related to.

Background

Chips with induced acceleration are arranged inside vehicle-mounted electronic products, VR, watches and the like, and vibration testing needs to be carried out on the products in order to check whether the performance of the products before shipment reaches the standard.

The vibration test is a component of environmental stress screening, is an effective test method for improving the reliability of products,

the device can also be used for fatigue test of products to carry out service life assessment of the products. The benefits of the producer include: the reliability problem in the product or the process is observed, so that the reliability problem can be eliminated from the product and the process, the production cost is reduced, and resources are saved.

Vibration measurement generally uses an accelerometer as a sensor, and the accelerometer is fixed on a vibration test fixture. And mounting the vibration test fixture on a vibration table, and driving the test fixture to vibrate by vibration of a vibrating diaphragm of the vibration table.

Based on the above, the vibration picked up by the accelerometer comes from the vibration table as much as possible, and the interference of vibration and movement of other parts is reduced. In the design aspect of the test fixture, the relative position relationship between the product and the test fixture needs to be kept as constant as possible, and the activity of the product in the test fixture needs to be as small as possible.

Based on the above requirements, the way of fixing the product by the test fixture is usually a screw fastening way. The method specifically comprises the following steps: set up the fixing base on the chassis and be used for installing the product, the one end of fixing base sets up the apron and compresses tightly the product fixedly, and the one end of apron is articulated through articulated seat with the chassis, and the other end is connected through the fastening bolt who takes the handle, when examining the product, and the manual fastening bolt who takes the handle that rotates makes the apron compress tightly the product, and when finishing, the manual opposite direction rotation takes the fastening bolt of handle, will lap the upset and product separation.

The prior art has the following defects: the screw screwing operation intensity is high, and the long-term operation is not suitable; the fastening degree of the screws is not easy to control when the screws are screwed, the matching degree of the cover plate and the base plate is affected when the screws are too loose, the product is not well fixed, and the vibration test result is affected; if the screw is tightened too tightly, the working strength is increased, the fatigue is increased, and the working efficiency is reduced; the screw is twisted for a long time, and the screw thread degree of wear of the screw on the apron fastening seat is bigger and bigger, and long-term operation has the risk of smooth line, reduces fastening effect, changes the part even, increases the tool cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned conventional art's weak point, provide a product vibration test fixture.

The purpose of the utility model is achieved through the following technical measures: the utility model provides a product vibration test tool which characterized in that: the product clamping device comprises a chassis, a positioning seat for installing a product is arranged on the chassis, a cover plate capable of compressing the product is arranged at one end of the positioning seat, one end of the cover plate is hinged to the base plate, a buckle capable of opening and closing is arranged on the chassis, the buckle is arranged at the other end of the cover plate, and the buckle can compress or release the corresponding end of the cover plate.

As a preferable scheme, the buckle comprises a buckling part, and a buckling surface for buckling and pressing the cover plate is arranged at the upper end of the buckling part.

As a preferable scheme, the buckle is fixed on the chassis through a mounting seat, the buckle is mounted on the mounting seat, and the mounting seat is fixed on the chassis.

As a preferable scheme, an adjusting plate is arranged on the mounting seat, one end, far away from the buckling surface, of the buckling part is hinged to the adjusting plate through a second rotating shaft, and the height of the adjusting plate can be adjusted.

As a preferable scheme, the buckle further comprises a spanner portion, one end of the spanner portion is connected with the buckling portion, and the spanner portion and the buckling portion are arranged at a certain angle.

As a preferred scheme, the buckle is connected with an elastic device, and the elastic device provides elastic force for driving the buckle to rotate towards the cover plate along the second rotating shaft.

Preferably, the elastic device is a spring, the spring is in a compressed state, and the spring is fixed on the mounting seat and is in contact with the wrench part.

As a preferred scheme, resilient means is the torsional spring, the torsional spring is installed on the second pivot, the torsional spring is in compression state, the torsional spring is provided with and orders about the buckle towards apron direction pivoted torsion.

As a preferable scheme, a magnetic device is arranged between the buckle and the mounting seat, and the magnetic device is provided with magnetic force for driving the buckle to rotate towards the cover plate.

As a preferred scheme, the buckle and the mounting seat are integrally arranged in an injection molding mode.

Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that: one end of the cover plate is fixed through the buckle instead of screwing screws in the prior art, so that products can be quickly fixed and taken out, the problems of long operation time and high operation fatigue of the original fixing mode are solved, the operation strength is low, and the long-term operation is suitable; once the height of the buckle is adjusted, the matching of the buckle and the cover plate is fixed, the abrasion degree is small, and the service life is long; and the height of the buckle can be adjusted according to different product heights so as to be universal to other product types with similar heights, and the applicability is wide.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic view of the overall structure of the product vibration testing jig of the present invention.

Fig. 2 is a schematic diagram of a back structure of the product vibration testing jig of the present invention.

Fig. 3 is a schematic view of the buckle structure of the product vibration testing fixture of the present invention.

Fig. 4 is a schematic view of the buckle structure of the product vibration testing jig of the present invention.

Fig. 5 is a schematic view of a buckle structure of embodiment 2 of the product vibration test fixture of the present invention.

Fig. 6 is a schematic view of a buckle structure of embodiment 3 of a product vibration test fixture of the present invention.

Fig. 7 is a schematic view of a buckle structure of embodiment 4 of the product vibration test fixture of the present invention.

Fig. 8 is a schematic view of a partial cross-sectional structure of embodiment 4 of a product vibration testing fixture of the present invention.

Fig. 9 is a schematic view of a buckle structure of embodiment 5 of the product vibration test fixture of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1: as shown in fig. 1 to 4, a product vibration test fixture includes a chassis 1, a positioning seat 2 is disposed on an upper side of the chassis 1, in this embodiment, the positioning seat 2 is fixed on the chassis 1, a product 3 is mounted on the positioning seat 2, the product 3 is connected with a test line 4, and the test line 4 is connected with the product 3.

As shown in fig. 1, a cover plate 5 is disposed on the chassis 1, and the cover plate 5 is disposed at one end of the positioning seat 2 and used for compressing and fixing the product 3. One side of the cover plate 5 close to the chassis 1 is jointed with the surface of the product 3. One end of the cover plate 5 is connected with the chassis 1 through the connecting seat 6, the other end of the cover plate is fixed through the buckle 7, and the buckle 7 is installed on the chassis 1 through the installation seat 9. The connecting seat 6 and the buckle 7 are respectively positioned at two sides of the positioning seat 2. Connecting seat 6 is "L" type setting, and connecting seat 6 passes through bolt and chassis 1 fixed connection, and the upper end of connecting seat 6 is articulated with apron 5 through first pivot 8, makes apron 5 can rotate along the pivot.

As shown in fig. 1, 3 and 4, the buckle 7 is disposed at an end of the cover plate 5 away from the first rotating shaft 8, the buckle 7 is connected to the mounting seat 9, in this embodiment, the mounting seat 9 is fixed on the chassis 1 by bolts, an adjusting plate 10 for connecting the buckle 7 is disposed on the mounting seat 9, in this embodiment, the adjusting plate 10 is disposed in a direction perpendicular to the mounting seat 9, and a height of the adjusting plate 10 is adjustable. In this embodiment, be provided with fixed block 11 on mount pad 9, fixed block 11 is on a parallel with regulating plate 10 and sets up, be provided with first connecting hole on the fixed block 11, be provided with the second connecting hole on the regulating plate 10, first connecting hole is rectangular form, set up along vertical direction, the second connecting hole is the round hole, connect first connecting hole and second connecting hole through the bolt, the realization is fixed regulating plate 10 on fixed block 11, through the upper and lower position of adjusting the second connecting hole, can adjust the height of regulating plate 10. The upper end of the adjusting plate 10 is connected with a second rotating shaft 12, the buckle 7 is hinged on the adjusting plate 10 through the second rotating shaft 12, and the height of the buckle 7 is synchronously changed along with the change of the adjusting plate 10. The height of buckle 7 can be adjusted according to the difference of 3 height of product to be general in 3 kinds of other products that highly are close, buckle 7 height in case after adjusting well, the cooperation of buckle 7 and apron 5 is fixed, and degree of wear is little, long service life.

As shown in fig. 3 to 4, the catch 7 includes a catching portion 13 located above the cover 5 and a wrench portion 14 connected to the catching portion 13. The buckling part 13 is arranged along the vertical direction, the upper part is provided with a buckling surface 15 for buckling the cover plate 5, and the wrench part 14 is arranged along the horizontal direction. The lower end of the buckling part 13 is hinged with the second hinge shaft. One end of the buckling part 13 connected with the second hinge shaft is connected with the end of the wrench part 14, and the wrench part 14 is used for pressing to enable the buckling part 13 to rotate along the second rotating shaft 12, so that the cover plate 5 is pressed and loosened.

As shown in fig. 4, a spring retaining portion 16 is further fixedly disposed on a side of the wrench portion 14 close to the mounting seat 9, the spring retaining portion 16 is disposed along a vertical direction, and the spring retaining portion 16 is located on a side of the fixing block 11 away from the adjusting plate 10. An elastic device is arranged between the fixing block 11 and the spring stopping portion 16, and the buckling portion 13 is pressed against the corresponding end of the cover plate 5 by the elastic force of the elastic device. The elastic device may be a spring 17 or a spring plate, in this embodiment, the elastic device is a spring 17, one end of the spring 17 is fixed on the fixed block 11, a jackscrew 18 is arranged on the spring blocking portion 16, and the jackscrew 18 penetrates through the spring blocking portion 16 from one side of the spring blocking portion 16 far away from the spring 17 to contact with the spring 17. The jack screw 18 can prevent the spring 17 from falling out and can adjust the compression amount of the spring 17. The elasticity of the spring 17 can be adjusted, once the spring 17 is tired, the elasticity is reduced, the elasticity can be increased by adjusting the jackscrew 18, and the service life of the buckle 7 is prolonged.

The mounting seat 9 is provided with a projection 19, and the projection 19 is arranged on the side of the spring stopping part 16 far away from the spring 17. The protrusion 19 is used to block the spring stop portion 16 and also prevent the rotation angle of the buckle 7 from being too large to increase the working time and the working fatigue strength. In this embodiment, a gap is left between the wrench portion 14 and the mounting seat 9, and the size of the gap is determined according to actual conditions, so that the movement of the buckle 7 is stopped just after the buckle is separated from the cover plate 5, and the excessive opening and closing angle is avoided, thereby saving the operation time, and the elastic compression amount of the spring 17 is controlled to be as small as possible, so as to reduce the pressing strength.

As shown in fig. 2, an accelerometer 20 is also fixedly connected to the back of the chassis 1, and the accelerometer 20 is fixed on the chassis 1 by an accelerometer fixing plate 21. When the product 3 is tested, the product 3 is placed in the fixing seat, the cover plate 5 is turned over to be buckled on the product 3, and the buckle 7 is pressed to enable the cover plate 5 and the buckle 7 to be buckled tightly; connecting the test line 4 with the product 3, and starting testing; after the test is finished, the buckle 7 is pressed to be separated from the cover plate 5, and the product 3 is taken out.

The wrench part 14 is pressed to loosen the buckling part 13, so that the product 3 is pressed and loosened, the operation mode of the buckle 7 is low in operation intensity, and the clamp is suitable for long-term operation. And the fastening degree of the buckle 7 and the cover plate 5 is completely controlled by the elastic force of the spring 17, and the buckling is stable.

Example 2: as shown in fig. 5, in the present embodiment, the elastic device is a torsion spring 22, the torsion spring 22 is mounted on the second rotating shaft 12, the torsion spring 22 is in a compressed state, and the torsion spring 22 gives the torsion force to the latch 7 toward the cover plate 5. The wrench part 14 is buckled, the buckling part 13 rotates towards the direction far away from the cover plate 5 for installing or detaching the cover plate 5, the wrench part 14 is loosened, and the buckling part 13 presses the cover plate 5 under the action of the torsion spring 22.

Other parts in this embodiment are the same as those in embodiment 1, and are not described in detail.

Example 3: as shown in fig. 6, in the present embodiment, the elastic device is a spring 17, the spring 17 is disposed below the wrench portion 14 in the vertical direction, one end of the spring 17 is fixed on the mounting seat 9, and the other end is disposed toward the wrench portion 14. The jackscrew 18 is installed at the lower portion of the wrench part 14, and one end of the jackscrew 18 penetrates the wrench part 14 and contacts the spring 17. Pressing the trigger part 14 causes the buckling part 13 to rotate towards the direction far away from the cover plate 5, and the trigger part 14 is released, so that the buckling part 13 presses the cover plate 5 under the action of the spring 17.

Example 4: as shown in fig. 7-8, in the present embodiment, a magnetic device is disposed between the buckle 7 and the mounting seat 9, and the magnetic device provides a magnetic force for driving the buckle 7 to rotate towards the cover plate 5. The magnetic device is a magnet, the magnet comprises a first magnet 23 and a second magnet 24, the first magnet 23 is arranged towards the bulge 19 of the spring retaining part 16, the second magnet 24 is arranged towards the spring retaining part 16 of the bulge 19, the opposite direction magnetic poles of the first magnet 23 and the second magnet 24 are opposite, namely the N pole of the first magnet 23 faces the second magnet 24, the S pole of the second magnet 24 faces the first magnet 23, and conversely, the S pole of the first magnet 23 faces the second magnet 24, the N pole of the second magnet 24 faces the first magnet 23. Thus, a magnetic force is generated between the first magnet 23 and the second magnet 24, and the catch spring portion 16 tends to move toward the projection 19. Pressing the wrench part 14 enables the buckling part 13 to rotate towards the direction far away from the cover plate 5, and loosening the wrench part 14 enables the buckling part 13 to press the cover plate 5 under the action of magnetic force. It is also possible to replace the first magnet 23 or the second magnet 24 with a magnetic substance, leaving only one magnet, which also generates a magnetic attraction force. Or the electromagnet can be replaced by the electromagnet, so long as the magnetic attraction is generated.

Example 5: as shown in fig. 9, in this embodiment, the buckle 7 and the mounting seat 9 are integrally formed by injection molding, the mounting seat 9 is fixed on the chassis 1 by bolts, the buckle 7 is an injection molded part and has elasticity, the pressing wrench portion 14 is in an elastic deformation state at this time, and returns to a normal state after releasing the hand, and compresses the cover plate 5.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a product vibration test tool which characterized in that: the product clamping device comprises a chassis, a positioning seat for installing a product is arranged on the chassis, a cover plate capable of compressing the product is arranged at one end of the positioning seat, one end of the cover plate is hinged to the base plate, a buckle capable of opening and closing is arranged on the chassis, the buckle is arranged at the other end of the cover plate, and the buckle can compress or release the corresponding end of the cover plate.

2. The product vibration test fixture of claim 1, wherein: the buckle comprises a buckling part, and the upper end of the buckling part is provided with a buckling surface for buckling the cover plate.

3. The product vibration test fixture of claim 2, wherein: the buckle is fixed on the chassis through the mounting seat, the buckle is installed on the mounting seat, and the mounting seat is fixed on the chassis.

4. The product vibration test fixture of claim 3, wherein: an adjusting plate is arranged on the mounting seat, one end, far away from the buckling surface, of the buckling part is hinged to the adjusting plate through a second rotating shaft, and the height of the adjusting plate can be adjusted.

5. The product vibration test fixture of claim 4, wherein: the buckle further comprises a wrench part, one end of the wrench part is connected with the buckling part, and the wrench part and the buckling part are arranged at a certain angle.

6. The product vibration test fixture of claim 5, wherein: the buckle is connected with an elastic device, and the elastic device is provided with elastic force for driving the buckle to rotate towards the cover plate along the second rotating shaft.

7. The product vibration test fixture of claim 6, wherein: the elastic device is a spring, the spring is in a compressed state, and the spring is fixed on the mounting seat and is in contact with the wrench part.

8. The product vibration test fixture of claim 6, wherein: the elastic device is a torsion spring, the torsion spring is installed on the second rotating shaft and is in a compression state, and the torsion spring is provided with torsion for driving the buckle to rotate towards the cover plate.

9. The product vibration test fixture of claim 5, wherein: be provided with magnetic means between buckle and the mount pad, magnetic means is provided with and orders about the buckle to apron pivoted magnetic force.

10. The product vibration test fixture of claim 3, wherein: the buckle and the mounting seat are integrally arranged in an injection molding mode.