CN111426442A

CN111426442A - Bounce test device

Info

Publication number: CN111426442A
Application number: CN201910019633.XA
Authority: CN
Inventors: 李允椉
Original assignee: King Design Instrument Technology(kunshan)co Ltd
Current assignee: King Design Instrument Technology(kunshan)co Ltd
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-07-17
Also published as: RU2718602C1; JP2020112532A

Abstract

The invention relates to a bounce test device which comprises a carrying platform and a supporting assembly. The carrier has a surface for carrying an object to be tested. The support assembly is arranged below the carrier so as to enable the carrier to perform reciprocating motion along a vertical direction. The support assembly comprises a reciprocating structure and a pressure adjusting component, the reciprocating structure is used for enabling the carrying platform to move between a first position and a second position, the pressure adjusting component is arranged adjacent to the reciprocating structure and applies positive pressure or negative pressure (vacuum) to the carrying platform in an indirect contact air cylinder or air bag mode so as to increase an elastic potential energy increased or decreased by using the air cylinder or the air bag under the gravity potential energy of the falling height caused by using a mechanical adjusting cam, and therefore the operation accuracy is increased and the operability is improved.

Description

Bounce test device

Technical Field

The present invention relates to a test apparatus, and more particularly, to a bounce test apparatus for generating a recurring (recurring) impact on a test object to perform a test.

Background

With the development of technology, various electronic products come out, and the component structures inside the products are more and more refined, so that the assembly structure thereof needs to have certain strength to avoid damage. To ensure that the product is not damaged during shipping or that it has sufficient durability during use by the consumer, the product must be tested before it is shipped. The bounce test device is used for simulating an impact environment to which a product is subjected during transportation or use, so as to test the damage accumulation degree of the product and the degradation condition of a specific function, and a manufacturer can detect the structural defects of the product in an initial development stage.

The conventional bounce test device is a cantilever-type bounce test device, and the gravity center of a device platform for bearing an object to be tested and the rotation center of a cantilever present a deviation, so that the bounce test device is easy to be stuck during action. In addition, the adjustment means for controlling the operation stroke in the bounce testing apparatus is limited by the specifications of the parts, and can be selectively set only in a specific section, so that finer adjustment cannot be performed, and the operation cannot be performed quickly.

Therefore, it is an object of the present invention to provide a bounce testing apparatus to overcome the above-mentioned shortcomings.

Disclosure of Invention

One object of the present invention is to provide a bounce test device, which allows a user to adjust the impact force in more convenient and simplified steps.

Another objective of the present invention is to provide a bounce testing apparatus, which can achieve fine adjustment of the impact force path by controlling the roller, the adjusting component and the pressure adjusting component.

To achieve the above objective, the bounce testing apparatus of the present invention comprises a carrier and a supporting assembly. The carrier has a surface for carrying an object to be tested; the support assembly is arranged below the carrier platform so as to enable the carrier platform to perform reciprocating motion along a vertical direction; the support assembly comprises a reciprocating structure and a pressure adjusting component, the reciprocating structure is used for enabling the carrying platform to displace between a first position and a second position, and the pressure adjusting component is arranged adjacent to the reciprocating structure and applies pressure to the carrying platform in an indirect contact mode.

To achieve the above object, the bounce testing apparatus of the present invention has a reciprocating structure including a cam contacting and carrying a roller of the carrier from below, wherein when the cam rotates along a rotation axis, the roller is driven to move along a vertical direction, thereby linking the carrier to move between a first position and a second position.

In order to achieve the above object, the carrier of the bounce testing apparatus of the present invention has a pressure contact area, and the pressure adjusting assembly applies a positive pressure or a negative pressure to the pressure contact area in an indirect contact manner from above or below the pressure contact area.

In order to achieve the above object, the pressure adjusting component of the bounce testing apparatus of the present invention is an air pressure adjusting component or a hydraulic adjusting component.

In order to achieve the above object, the carrier of the bounce testing apparatus of the present invention further includes an adjusting assembly, and the roller is adjustably disposed on the adjusting assembly, so that the carrier can be finely adjusted in a vertical direction.

To achieve the above object, the bounce testing apparatus of the present invention further comprises a rod defining a rotation axis, and the rod is driven by at least one motor.

To achieve the above object, when the cam and the at least one motor of the bounce testing apparatus of the present invention are disposed on two opposite sides of the carrier, respectively, the rod member is disposed through a strip-shaped through hole below the carrier.

To achieve the above object, the bounce testing apparatus of the present invention further includes a buffering structure having a buffering member, and the buffering structure is disposed below the supporting assembly.

To achieve the above object, the bounce testing apparatus of the present invention further includes an adjustable element, wherein the adjustable element adjusts the exposed height of the buffer member by being disposed around the periphery of the buffer member, so as to control a buffering force provided by the buffer member.

In order to make the aforementioned objects, features and advantages more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

FIG. 1 is a schematic perspective view of a bounce testing apparatus used with an operating machine according to a preferred embodiment of the present invention;

FIG. 2 is a schematic perspective view of the bounce testing apparatus shown in FIG. 1;

FIG. 3 is a partially enlarged perspective view of the bounce testing apparatus shown in FIG. 1 between a first position and a second position;

FIG. 4A is an enlarged, fragmentary, perspective view of the bounce test apparatus shown in FIG. 1 in a first position;

FIG. 4B is an enlarged, fragmentary perspective view of the bounce testing apparatus shown in FIG. 1 in a second position; and

fig. 5 to 8 are partially enlarged perspective views of some elements of the bounce testing apparatus shown in fig. 1.

Description of the reference numerals

10 bounce test device

100 stage

110 surface

120 roller

130 pressure contact zone

140 adjustment assembly

142 screw

150 strip-shaped through hole

160 support

200 support assembly

210 reciprocating structure

212 cam

212a protruding tip

212b recess

214 rotating shaft

216 rod member

220 pressure regulating assembly

222 air bag

300 motor

400 buffer structure

410 buffer

420 Adjustable element

50 operating machine

D vertical direction

H_maxMaximum height

H_minMinimum height

And H height.

Detailed Description

Fig. 1 and 2 are perspective views of a bounce testing apparatus 10 according to a preferred embodiment of the invention. Wherein, the bounce testing device 10 can be externally connected with an operating machine 50 to perform wired or wireless remote control on the bounce testing device 10; the operation machine 50 can display the pressure data provided by the bounce testing device 10 to the object to be tested, so that the user can view and perform fine adjustment of the pressure.

The bounce testing apparatus 10 may include a carrier 100 and a support assembly 200, the technical content of each of which is described in sequence as follows.

As shown in fig. 2, the carrier 100 has a surface 110 for placing and carrying an object to be tested (not shown). The support assembly 200 is disposed below the carrier 100 to enable the carrier 100 to perform a reciprocating motion along a vertical direction D (i.e., Y direction).

In other words, the support assembly 200 includes a reciprocating structure 210 and a pressure regulating component 220, the reciprocating structure 210 can make the carrier 100 at a first position (the highest point as shown in FIG. 4A, which has a maximum height H)_max) And a second position (the lowest point shown in FIG. 4B, which has a minimum height H_min) And the pressure adjustment assembly 220 is disposed adjacent to the reciprocating structure 210 and applies pressure to the carrier 100 in an indirect contact manner (the carrier 100 shown in fig. 3 shows a height H between the first position and the second position).

Referring to fig. 3, the reciprocating structure 210 includes a cam 212 (i.e., a driving member), and the cam 212 contacts and carries a roller 120 (i.e., a driven member) of the carrier 100 from a lower side. In this way, when the cam 212 disposed below rotates along a rotation axis 214, the roller 120 carried above can be driven along the outer contour of the cam 212, so that the roller 120 moves in the vertical direction D, thereby linking the stage 100 to move between the first position and the second position.

The roller 120 is configured to be displaceable only in the vertical direction D, and when the bounce testing apparatus 10 operates, the cam 212 rotates in the counterclockwise direction, and the roller 120 abutting against the cam 212 is pushed upward or instantly falls downward along with the outer profile of the cam 212.

In detail, as shown in fig. 4A, the cam 212 includes a protruding top end 212a and a recessed portion 212b, and the recessed portion 212b is disposed adjacent to the protruding top end 212 a. When the cam 212 rotates counterclockwise, the roller 120 will contact the protruding tip 212a and then fall from the protruding tip 212a to the recess 212 b. Since the roller 120 is part of the carrier 100And is fixed to the stage 100, so that the up-and-down movement of the roller 120 in the vertical direction D will cause the displacement of the stage 100. That is, when the cam 212 rotates to move the roller 120 to the protruding top end 212a of the cam 212, the roller 120 is adapted to be at the highest movable point, and in conjunction with this, the carrier 100 is raised to the maximum height H_maxTo the first position.

Subsequently, as shown in FIG. 4B, when the cam 212 continues to rotate to disengage the roller 120 from the protruding tip 212a and thus instantly drop into the recess 212B, the carrier 100 will also instantly drop from the first position to the second position (i.e. to the minimum height H) accordingly_minAnd thereby generating an impact on the object to be measured. It is noted that the minimum height H_minNot limited to the distances depicted in the figures, which may include distances of 0 mm or more as adjusted by the user.

By repeating the above-described operation of rotating the cam 212, the roller 120 can be instantaneously dropped from the protruding tip 212a of the cam 212 to the recess 212b within a specific time, and the stage 100 can be instantaneously dropped from the first position to the second position (i.e., from the maximum height H) within a specific time_maxFalls to a minimum height H_minAnd) generating a recurring impact on the object to be tested to complete the bounce test on the object to be tested.

In other words, if the rotation of the cam 212 is appropriately controlled, the operating frequency of the bounce test device of the present invention for bouncing the object to be tested or the period of giving the impact can be controlled accordingly.

Referring to fig. 5, the carrier 100 further includes an adjusting assembly 140, the roller 120 is adjustably disposed in the adjusting assembly 140, and the position of the roller 120 in the vertical direction D is finely adjusted by the adjusting assembly 140, that is, the carrier 100 is finely adjusted in the vertical direction D. In the embodiment shown in fig. 5, the adjustment assembly 140 may include a screw 142, and the roller 120 may be raised or lowered in the vertical direction D by rotating the screw 142 clockwise or counterclockwise. In addition, the size of the rollers 120 (e.g., 5 cm, 5.5 cm, 6 cm, etc., with 5 mm spacing) can be changed by changing the rollers to different diametersThe lift of the stage 100 is varied (i.e., the distance the stage 100 moves between the first and second positions is made shorter or longer; in other words, the maximum height H is made_maxAnd a minimum height H_minThe difference between them becomes smaller or larger) for the purpose of adjusting the pressure applied to the carrier 100.

In the present invention, the carrier 100 further has a pressure contact region 130. As shown in fig. 6, the pressure contact areas 130 disposed at two sides of the lower portion of the carrier 100 are linked with the carrier 100 through the support 160, so that the pressure adjusting element 220 can apply a positive pressure or a negative pressure (vacuum) to the pressure contact area 130 by an indirect contact cylinder or an air bag from the upper or lower portion of the pressure contact area 130, and the pressure adjusting element 220 can be a pneumatic adjusting element or a hydraulic adjusting element.

In detail, in the embodiment shown in fig. 6-7, the pressure regulating assembly 220 is a pneumatic type regulating assembly, and the pressure regulating assembly 220 has two air bags 222 and a pipeline for supplying air (not shown). The pressure contact region 130 refers to a portion that is in contact with the two air cells 222, and the air cells 222 are disposed above the pressure contact region 130.

During operation of the bounce testing apparatus 10, a positive pressure or a negative pressure may be indirectly provided at the pressure contact area 130 by driving gas into the air bag 222 to form a positive pressure or by pumping gas out of the air bag 222 to form a negative pressure. In other words, by providing the pressure adjustment assembly 220, a downward pressure (when the pressure adjustment assembly 220 provides a positive pressure) or an upward pressure (when the pressure adjustment assembly 220 provides a negative pressure) of the carrier 100 can be additionally provided during the bounce test. Therefore, different from the existing method of using the gravitational potential energy principle and only mechanically adjusting the falling height caused by the cam, the invention also adds an elastic potential energy which can be increased or decreased by using the air cylinder or the air bag, thereby increasing the operation precision during the bounce test and further improving the operability. Therefore, the bounce testing device 10 of the present invention is not limited by the specifications of the hardware, and the pressure applied to the stage 100 can be adjusted more finely. As shown in fig. 1, the pressure value data can be received through the connection with the operation machine 50, so as to achieve the purpose of automatically monitoring and adjusting the pressure applied to the stage 100, and provide a stable test environment.

It should be noted that, in the embodiment shown in fig. 6, the air bag 222 of the pressure adjustment assembly 220 is disposed above the pressure contact area 130 for pressing, so as to prevent the material or weight of the air bag 222 from affecting the accuracy of the pressure adjustment, but not limited thereto. In other words, in other embodiments, the air bag 222 of the pressure regulating assembly 220 may be disposed under the pressure contact area 130 for pressing, and the purpose of fine tuning the pressure may also be achieved.

Referring to FIG. 7, the reciprocating structure 210 further includes a rod 216, and the rod 216 is adapted to define the rotating shaft 214 of the cam 212 and is driven by at least one motor 300. The number of motors 300 is determined by the amount of power to be provided, and the heavier the test object, the more power it will need.

The cam 212 and the motor 300 may be selectively disposed on the same side or opposite sides of the stage 100, depending on the user's operational or appearance considerations. When the cam 212 and the motor 300 are disposed on two opposite sides of the carrier 100, the rod 216 is suitable for passing through a strip-shaped through hole 150 disposed below the carrier 100, so that the motor 300 can drive the cam 212, and the carrier 100 can smoothly reciprocate.

Referring to fig. 8, the bounce testing apparatus 10 of the present invention further includes a buffering structure 400 having a buffering member 410. The buffering structure 400 is disposed below the supporting assembly 200 and has an adjustable element 420, the adjustable element 420 is disposed around the periphery of the buffer 410, and the exposed height of the buffer 410 can be adjusted by the rotation of the adjustable element 420, so as to control a buffering force provided by the buffer 410, and further simulate different buffering forces. More specifically, the buffer 410 can be a rubber, and the adjustable element 420 surrounding the rubber can be operated by a user (e.g., rotated up or rotated down) to adjust the exposed height of the rubber, such that the rubber is soft when the exposed height of the rubber is high, and provides a greater buffering effect during a bounce test, and the rubber is hard when the exposed height of the rubber is low, and provides a smaller buffering effect during the bounce test.

In addition, when the rubber exposure height is high, the bounce testing device 10 of the present invention will change the maximum height H due to the support of the rubber_maxAnd a minimum height H_minThe height difference between the protruding top 212a and the recessed portion 212b allows the roller 120 to be supported by rubber and stop falling when the roller is not in contact with the recessed portion 212b, thereby achieving another purpose of adjusting the height difference.

In summary, the bounce test apparatus of the present invention can adjust the initial position of the carrier 100 in the vertical direction D by using the adjustment assembly 140 or replacing the rollers 120 with different diameters, and thereby control the movement stroke of the carrier 100 in the vertical direction D when the carrier is impacted. In addition, by the arrangement of the pressure adjusting component 220, the bounce testing apparatus of the present invention can apply a positive pressure or a negative pressure to the pressure contact area 130 through the air bag 222 in an indirect contact manner during the process of applying the impact, so that the bounce testing apparatus of the present invention can adjust the pressure applied to the carrier 100 more finely than the bounce testing apparatus which can only adjust the falling height by replacing the cam. Additionally, the cushioning structure 400 utilizes the exposed height of the cushioning member 410 to simulate different cushioning forces. Therefore, a user can adjust the pressure generated by the carrier to the object to be tested in a more convenient, rapid and fine manner, and meanwhile, the stress condition possibly encountered by the product during transportation or use is stably simulated, so that a manufacturer can conveniently modify the product structure in the research and development stage.

The above examples are only intended to illustrate the embodiments of the present invention and to illustrate the technical features of the present invention, and are not intended to limit the scope of the present invention. Any arrangement which can be easily changed or equalized by a person skilled in the art is included in the scope of the present invention, which is defined by the following claims.

Claims

1. A bounce test device, comprising:

a carrier having a surface for carrying an object to be tested; and

the support assembly is arranged below the carrying platform so as to enable the carrying platform to carry out reciprocating motion along a vertical direction;

the support assembly comprises a reciprocating structure and a pressure adjusting component, the reciprocating structure is used for enabling the carrying platform to move between a first position and a second position, and the pressure adjusting component is arranged adjacent to the reciprocating structure and applies pressure to the carrying platform in an indirect contact mode.

2. The apparatus of claim 1, wherein the reciprocating structure comprises a cam contacting and supporting a roller of the carrier from below, the roller being driven to move in the vertical direction when the cam rotates along a rotation axis, thereby moving the carrier between the first position and the second position.

3. The apparatus of claim 2, wherein the carrier has a pressure contact area, and the pressure adjustment assembly applies a positive pressure or a negative pressure to the pressure contact area from above the pressure contact area in the indirect contact manner.

4. The apparatus of claim 2, wherein the carrier has a pressure contact area, and the pressure adjustment assembly applies a positive pressure or a negative pressure to the pressure contact area from below the pressure contact area in the indirect contact manner.

5. The apparatus of claim 2, wherein the pressure regulating assembly is a pneumatic regulating assembly or a hydraulic regulating assembly.

6. The apparatus of claim 2, wherein the carrier further comprises an adjustment assembly, the roller is adjustably mounted on the adjustment assembly, and the carrier is fine-tuned along the vertical direction.

7. The apparatus of claim 2 wherein the reciprocating structure further comprises a rod defining the axis of rotation and driven by at least one motor.

8. The apparatus of claim 7, wherein the rod member is disposed through a strip-shaped through hole formed below the stage when the cam and the at least one motor are disposed on opposite sides of the stage.

9. The apparatus of claim 1 further comprising a cushioning structure having a cushioning member, wherein the cushioning structure is disposed below the support assembly.

10. The apparatus of claim 9, wherein the damping structure further comprises an adjustable element for adjusting the exposed height of the damping member by encircling the periphery of the damping member to control a damping force provided by the damping member.