Automatic steering fixture and vibration test bench with it

Abstract

This invention provides an automatic steering fixture and a vibration test bench having the same, comprising: a fixture frame; a sample holder rotatably connected to the fixture frame; a drive device disposed on the fixture frame, the power output end of the drive device being drivenly connected to the sample holder for driving the sample holder to rotate; and a timing device disposed on the fixture frame, the timing device being electrically connected to the drive device. The automatic steering fixture of this invention allows the angle of the sample holder to be set at any time according to actual testing requirements, enabling multi-angle vibration simulation testing of the sample under test, greatly improving the accuracy and rigor of vibration testing.

Description

Technical Field

[0001] This invention relates to the field of vibration testing technology, specifically to an automatic steering fixture and a vibration test bench having the same. Background Technology

[0002] The reliability of air conditioning components during transportation is an important technical parameter. Air conditioning components are subject to vibrations of varying degrees during transportation, which can easily cause damage to the components. However, vibrations during transportation are difficult to avoid. Therefore, it is necessary to conduct vibration transportation tests on air conditioning components. This is also an important basis and parameter for judging the quality of air conditioners.

[0003] Currently, vibration test benches on the market are all directional, with vibrations either vertical or horizontal. They cannot flexibly adjust the vibration direction at specific times, thus failing to simulate complex transportation environments. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic steering fixture and a vibration test bench having the same, so as to solve the problem that the vibration test bench in the prior art cannot flexibly adjust the vibration direction of the sample in a timely manner.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An automatic steering fixture, comprising:

[0007] Tool rack;

[0008] The sample holder is rotatably connected to the tooling frame;

[0009] A driving device is mounted on the tooling frame, and the power output end of the driving device is connected to the sample holder for driving the sample holder to rotate.

[0010] A timing control device is mounted on the tooling frame and is electrically connected to the drive device.

[0011] Furthermore, the tooling frame includes a first vertical support and a second vertical support arranged opposite to each other;

[0012] The driving device is mounted on the first vertical support, one end of the sample holder is driven and connected to the power output end of the driving device, and the other end of the sample holder is rotatably connected to the second vertical support.

[0013] Furthermore, the first vertical support is provided with a vertical first slide groove, and the driving device is mounted on the first vertical support and can move vertically along the first slide groove.

[0014] Furthermore, the second vertical support is provided with a vertical second slide groove, and the second vertical support is provided with a bearing seat, the bearing seat being able to move vertically along the second slide groove, and the sample holder being rotatably connected to the bearing seat.

[0015] Furthermore, the driving device is rotatably connected to the first slide groove, and the driving device is horizontally set about the rotation center of the first vertical support and perpendicular to the rotation center of the sample holder.

[0016] The bearing is rotatably connected to the second slide groove. The bearing is horizontally positioned around the rotation center of the second vertical support and perpendicular to the rotation center of the sample holder.

[0017] Furthermore, the horizontal spacing between the first vertical support and the second vertical support is adjustable.

[0018] Furthermore, the sample holder is provided with multiple sample fixing holes.

[0019] Furthermore, it also includes a pressure plate, which is detachably mounted on the sample holder.

[0020] Furthermore, the driving device includes a motor and a gearbox, and the output end of the motor is driven to the sample holder via the gearbox.

[0021] Furthermore, it also includes a remote control device, which is communicatively connected to the time control device.

[0022] Furthermore, the tooling frame is made of stainless steel.

[0023] The present invention also provides a vibration test bench, including a vibration table surface, wherein the above-mentioned automatic steering fixture is provided on the vibration table surface.

[0024] Using the technical solution of this invention, the fixture is fixed on the vibration table, and the sample to be tested is fixed on the sample holder. The time to be adjusted is set by the time control device. After the set time is reached, the drive device is automatically started, driving the sample holder to rotate. The time required for the sample holder to reach each angle is calculated in advance. The vibration angle of the sample is adjusted by the timer switch of the time control device, so that the automatic steering fixture of this application can flexibly adjust the vibration direction of the sample in a timed manner.

[0025] Compared with the prior art, the automatic steering fixture of this application can set the angle of the sample holder at any time according to the actual test requirements, realize multi-angle vibration simulation test of the sample under test, and greatly improve the accuracy and rigor of vibration test. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0027] Figure 1 This is a perspective view of the automatic steering fixture according to an embodiment of the present invention;

[0028] Figure 2 This is a top view of the automatic steering fixture according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the connection structure between the sample and the sample holder in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the connection structure between the driving device and the sample holder in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the appearance of the time control device according to an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the appearance of the remote control device according to an embodiment of the present invention;

[0033] in:

[0034] 1-Tooling frame; 2-Sample holder; 3-Drive device; 4-Time control device; 5-Shaft seat; 6-Vibration table; 7-Fixing bolt; 8-Pressure plate; 9-Sample; 10-Remote control device; 11-First vertical support; 12-Second vertical support; 21-Sample fixing hole; 31-Motor; 32-Reduction gearbox; 111-First slide groove; 121-Second slide groove. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

[0036] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] To address the problem that existing vibration test benches cannot flexibly adjust the vibration direction of samples at specific times, this invention provides an automatic steering fixture and a vibration test bench incorporating it.

[0039] like Figures 1 to 4 As shown, the automatic steering fixture of this embodiment includes a fixture frame 1, a sample holder 2, a drive device 3, and a timing device 4. The sample holder 2 is rotatably connected to the fixture frame 1. The drive device 3 and the timing device 4 are both mounted on the fixture frame 1. The power output end of the drive device 3 is driven to the sample holder 2 to drive the sample holder 2 to rotate. The timing device 4 is electrically connected to the drive device 3.

[0040] Applying the technical solution of this embodiment, when it is necessary to perform vibration testing on sample 9, the fixture 1 is first fixed on the vibration table 6 of the vibration test bench, and sample 9 is fixed on sample holder 2. The adjustment time is set by the time control device 4, for example, the angle is adjusted once every ten minutes. After the set time is reached, the drive device 3 is automatically started, driving the sample holder 2 to rotate. The time required for sample holder 2 to reach the predetermined angle can be calculated by the rotation speed. The time control device 4 controls the timer switch to control the running time of the drive device 3, and adjusts the sample holder 2 to the set vibration angle, so that the automatic steering fixture of this application can flexibly adjust the vibration direction of the sample in a timed manner.

[0041] As can be seen, the automatic steering fixture of this application can set the angle of the sample holder 2 at any time according to the actual test requirements, realize multi-angle vibration simulation test of air conditioning components, greatly improve the accuracy and rigor of vibration test, avoid the sample from being damaged during transportation and ending up in the hands of consumers, control the problem within the factory, and effectively reduce after-sales complaints.

[0042] In this embodiment, the tooling frame 1 includes a first vertical support 11 and a second vertical support 12 arranged opposite to each other. The driving device 3 is mounted on the first vertical support 11. One end of the sample holder 2 is driven and connected to the power output end of the driving device 3, and the other end of the sample holder 2 is rotatably connected to the second vertical support 12. In this way, the sample holder 2 is horizontally rotatably mounted between the first vertical support 11 and the second vertical support 12, which allows the sample 9 to be suspended and clamped, avoiding direct contact with the vibration table surface 6, thus preventing equipment wear and affecting the service life of the equipment. At the same time, the sample 9 can be at different angles relative to the horizontal plane under the drive of the sample holder 2, thereby changing the vibration direction.

[0043] In this embodiment, the first vertical support 11 and the second vertical support 12 adopt an L-shaped or T-shaped structure, and the bottom is fixedly connected to the vibration table 6 by fixing bolts 7. The vibration table 6 is evenly distributed with threaded holes. By connecting with different threaded holes, the distance between the first vertical support 11 and the second vertical support 12 can be changed, thereby adapting to the connection of sample holders 2 of different sizes.

[0044] In this embodiment, the sample holder 2 adopts a rectangular frame structure, with a rotating shaft on each of the two opposite short sides. The rotating shaft at one end is driven and connected to the power output end of the drive device 3, and the rotating shaft at the other end is rotatably connected to the mounting hole of the second vertical bracket 12. To improve the smoothness of rotation, the two can be connected by bearings.

[0045] To facilitate the fixation of sample 9, sample holder 2 is provided with sample fixing holes 21 at intervals. It is also equipped with a pressure plate 8. When sample 9 is placed on it, the pressure plate 8 clamps sample 9 between sample holder 2 and pressure plate 8. Pressure plate 8 is also provided with mounting holes at intervals and is connected to sample holder 2 via bolt assemblies. In this way, through the cooperation of pressure plate 8 and sample holder 2, multiple samples 9 can be quickly clamped simultaneously. Moreover, with sample 9 clamped between pressure plate 8 and sample holder 2, it can be firmly fixed to sample holder 2 during rotation, ensuring stability during vibration testing and improving the accuracy and rigor of the test.

[0046] It is easy to understand that the sample holder 2 can also be a flat plate structure, or it can be a telescopic frame structure, so as to further adapt to different sample clamping requirements.

[0047] In this embodiment, in order to facilitate the adjustment of the height of the sample holder 2 and thus adapt to the vibration test of samples 9 at different heights, a vertical first slide groove 111 is provided on the first vertical support 11, and the driving device 3 is provided on the first vertical support 11 and can move vertically along the first slide groove 111.

[0048] Correspondingly, the second vertical support 12 is provided with a vertical second slide groove 121. In order to facilitate the rotational connection with the sample holder 2, the second vertical support 12 is provided with a bearing 5. The bearing 5 can move vertically along the second slide groove 121, and the sample holder 2 is rotatably connected with the bearing 5.

[0049] Thus, the height of the sample holder 2 can be adjusted by adjusting the height of the drive device 3 in the first slide groove 111 and the height of the bearing seat 5 in the second slide groove 121.

[0050] It is easy to understand that the first slide groove 111 and the second slide groove 121 can also be mounting holes or mounting grooves arranged vertically at intervals. When they are mounting holes arranged vertically at intervals, the bearing seat 5 may not be provided. As for the connection method between the drive device 3 and the first slide groove 111, and the connection method between the bearing seat 5 and the second slide groove 121, it can be designed according to the actual situation. Commonly used structures include friction fixing (screw abutment) and snap-fit ​​structure, etc.

[0051] In this embodiment, when the drive device 3 and the bearing 5 are at the same height, the rotation center of the sample holder 2 is parallel to the vibration table surface 6. To further improve the angle adjustment range, the drive device 3 and the bearing 5 can be set at different heights, so that the rotation center of the sample holder 2 is tilted relative to the vibration table surface 6. For this purpose, the drive device 3 can be rotatably connected to the first slide groove 111, and the bearing 5 can be rotatably connected to the second slide groove 121. Specifically, the front and rear sides of the drive device 3 are rotatably connected to the front and rear side walls of the first slide groove 111 via shafts. Similarly, the front and rear sides of the bearing 5 are rotatably connected to the front and rear side walls of the second slide groove 121 via shafts, so that the rotation centers of the drive device 3 and the bearing 5 are horizontally set and perpendicular to the rotation center of the sample holder 2. Thus, when the bearing 5 is located above the drive device 3, the drive device 3 and the bearing 5... By rotating counterclockwise by a certain angle, the drive device 3, sample holder 2, and shaft seat 5 can be arranged in a straight line. Conversely, when the shaft seat 5 is located below the drive device 3, rotating the drive device 3 and shaft seat 5 clockwise by a certain angle can ensure that the drive device 3, sample holder 2, and shaft seat 5 are arranged in a straight line.

[0052] In order to enable the drive device 3 to be adjusted vertically along the first slide 111 and to rotate in the vertical plane where the rotation center of the sample holder 2 is located, vertical mounting holes or mounting grooves can be provided on the front and rear side walls of the first slide 111. Of course, they can also be provided at intervals. Of course, the second slide 121 can also adopt the same design.

[0053] In this embodiment, the tooling frame 1 is made of stainless steel, and the fasteners used, such as the fixing bolts 7, are all standard parts made of stainless steel.

[0054] In this embodiment, the drive device 3 includes a motor 31 and a reduction gearbox 32. The output shaft of the motor 31 is connected to the sample holder 2 via the reduction gearbox 32. Since the motor 31 rotates at a very high speed, it needs to be reduced in speed by the reduction gearbox 32 before being output to the sample holder 2 to accommodate angle adjustment.

[0055] like Figure 5As shown, the time control device 4 can use a commercially available time control switch product, which is electrically connected to the motor 31. The time control device 4 can set the time interval to be adjusted according to the test procedure. After the set time is reached, the motor 31 automatically starts to control the reduction gearbox 32 to rotate and drive the sample holder 2 to rotate. The time control device 4 can also set the time required for the sample holder 2 to reach each angle. By controlling the running time of the motor 31, the sample holder 2 can be accurately positioned at the set angle position.

[0056] The automatic steering fixture in this embodiment is also equipped with a remote control device 10, such as... Figure 6 As shown, the remote control device 10 can be a commercially available remote control product. In the past, if an angle change was required urgently during the vibration test, the experiment had to be paused before the sample angle could be adjusted. In this embodiment, the remote control device 10 is used to remotely control the time control device 4 to adjust the vibration angle of the sample, which can avoid the wear and tear on the vibration test bench and the waste of test time caused by frequent pauses and restarts of the experiment.

[0057] This embodiment also provides a vibration test bench, including a vibration table 6, wherein the vibration table 6 is provided with an automatic steering fixture of any of the above-mentioned technical solutions. The automatic steering fixture can quickly realize the reliable clamping of air conditioning components and the automatic adjustment of the placement direction, which greatly improves the accuracy and rigor of the test, avoids air conditioning components from being damaged during transportation and ending up in the hands of consumers, controls the problem within the factory, and effectively reduces after-sales complaints.

[0058] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0059] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic steering fixture, characterized in that: include: Tool rack; The sample holder is rotatably connected to the tooling frame; A driving device is mounted on the tooling frame, and the power output end of the driving device is connected to the sample holder for driving the sample holder to rotate. A timing control device is mounted on the tooling frame, and the timing control device is electrically connected to the drive device; The tooling frame includes a first vertical support and a second vertical support arranged opposite to each other; The driving device is mounted on the first vertical support, one end of the sample holder is driven and connected to the power output end of the driving device, and the other end of the sample holder is rotatably connected to the second vertical support; The first vertical support is provided with a vertical first sliding groove, and the driving device is provided on the first vertical support and can move vertically along the first sliding groove; The second vertical support is provided with a vertical second slide groove, and the second vertical support is provided with a bearing seat, which can move vertically along the second slide groove. The sample holder is rotatably connected to the bearing seat. The driving device is rotatably connected to the first slide groove. The driving device is horizontally positioned around the rotation center of the first vertical support and perpendicular to the rotation center of the sample holder. The bearing seat is rotatably connected to the second slide groove. The bearing seat is horizontally positioned around the rotation center of the second vertical support and perpendicular to the rotation center of the sample holder. The horizontal spacing between the first vertical support and the second vertical support is adjustable; The driving device includes a motor and a gearbox, and the output end of the motor is driven to the sample holder via the gearbox.

2. The automatic steering fixture according to claim 1, characterized in that: It also includes a pressure plate, which is detachably mounted on the sample holder.

3. The automatic steering fixture according to claim 1, characterized in that: It also includes a remote control device, which is communicatively connected to the time control device.

4. The automatic steering fixture according to claim 1, characterized in that: The tooling frame is made of stainless steel.

5. A vibration test bench, comprising a vibration table surface, characterized in that: The vibration table is provided with an automatic steering fixture as described in any one of claims 1-4.

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