Applicable vibration test fixture

Abstract

The utility model discloses an applicable vibration test fixture, which belongs to the technical field of test fixtures, and comprises a bottom plate and an upper cover, the bottom plate and the upper cover are fixedly connected through bolts, the middle part of the upper cover penetrates through a slot for a display control terminal to insert, and two ends of the upper cover are respectively provided with a fixed pressure plate and a movable pressure plate. According to the applicability vibration test fixture of the utility model, the horizontal distance adjusting screws arranged at the end parts of the side plate and the upper cover are screwed, so that the horizontal distance adjusting screws abut against the side surface of the display control terminal after being rotated and pushed through the threads arranged on the horizontal distance adjusting screws; therefore, while the test fixture adapts to more display control terminals of different specifications for vibration test, the use performance of the display control terminal is prevented from being affected, the integrity and functionality of the display control terminal are kept, the application range of the test fixture is widened, the test fixture can be used for multiple purposes, the test damage risk of the display control terminal is reduced, the test cost is reduced, and the test efficiency is improved. And the test efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of test fixtures, and particularly relates to a vibration test fixture with applicability. Background Art

[0002] The display and control terminal is a device integrating display and control functions, and it is widely used in multiple fields such as industrial control, military command, navigation, medical equipment, smart home, etc. The display and control terminal mainly consists of a display device and a control device (such as a multimedia controller). By integrating components such as a display screen, a touch panel (or buttons), and a processor, it realizes the visual display of information and the human-computer interaction control.

[0003] Vibration testing is an important means to evaluate the reliability and stability of the display and control terminal under various vibration conditions that it may experience during its life cycle. By simulating the vibration situation in the actual use environment, it can verify whether there are defects in aspects such as the structural design, material selection, and manufacturing process of the display and control terminal, so as to discover and solve problems in advance, and ensure the reliability and stability of the product in actual use. Therefore, performing vibration testing on the display and control terminal before leaving the factory can ensure the product reliability of the display and control terminal, prevent potential failures, increase the product life, meet industry standards and regulatory requirements, and improve the user experience.

[0004] During the process of performing vibration testing on the display and control terminal, in order to accurately transfer the vibration energy of the vibration table to the display and control terminal and ensure the accuracy of the vibration test results, it is necessary to fix the display and control terminal on the vibration table to prevent displacement or detachment during the test. At this time, the fixture, as a bridge connecting the product under test and the vibration table, can ensure the stability of the specimen during the test;

[0005] However, there are a wide variety of display and control terminal products with different sizes. Special-purpose fixtures have a single object of use and a small applicable range, which easily causes cost waste. And when applied to other specifications of display and control terminals, it will cause insecure fixation due to adaptability problems. In vibration testing, multi-directional vibration testing may be required, such as vertical up and down, left and right, or front and back, etc. In this case, if there is no suitable fixture to fix the display and control terminal, the display and control terminal may be damaged because it cannot withstand the vibration generated by the vibration table, and the vibration energy will also be lost during the transmission process, thereby increasing the risk of test damage to the display and control terminal, increasing the test cost, and reducing the test efficiency. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a vibration test fixture with applicability, aiming to solve the above problems existing in the prior art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An applicability vibration test fixture, comprising a bottom plate and an upper cover, wherein the bottom plate and the upper cover are fixedly connected by bolts. A slot is formed through the middle of the upper cover for inserting a display and control terminal, and a fixed pressing plate and a movable pressing plate are respectively arranged at both ends. Side plates are integrally arranged on both sides of the upper cover. Vertical distance adjusting screws are threadedly connected to both the fixed pressing plate and the movable pressing plate, and a horizontal distance adjusting screw is threadedly connected to one of the side plates. Screw caps are integrally arranged at the ends of the vertical distance adjusting screws and the horizontal distance adjusting screw, and silicone gaskets are pasted on the screw caps.

[0009] In a preferred embodiment of the present utility model, the fixed pressing plate and the upper cover are integrally provided, and both ends of the movable pressing plate are detachably assembled with the upper end surface of the upper cover through bolts.

[0010] In a preferred embodiment of the present utility model, a through hole is formed through the middle of the bottom plate for weight reduction, and a fixing hole is provided in the through hole. The bottom plate is bolt-fixed to the surface of the vibration table through the fixing hole.

[0011] In a preferred embodiment of the present utility model, a horizontal distance adjusting screw is also threadedly connected to one end of the upper cover away from the fixed pressing plate, and the vertical distance adjusting screws and the horizontal distance adjusting screws are arranged in pairs.

[0012] In a preferred embodiment of the present utility model, a number of reserved holes are formed by drilling holes beside the vertical distance adjusting screws and the horizontal distance adjusting screws. Threads are provided on the inner walls of the reserved holes and are adapted to the vertical distance adjusting screws and the horizontal distance adjusting screws.

[0013] In a preferred embodiment of the present utility model, the diameters of the screw caps and the silicone gaskets are both larger than the diameters of the vertical distance adjusting screws and the horizontal distance adjusting screws.

[0014] In a preferred embodiment of the present utility model, "U"-shaped grooves are formed on the side plates, and the display and control terminal is taken and placed through the "U"-shaped grooves.

[0015] In a preferred embodiment of the present utility model, anti-slip threads are formed at the tops of the vertical distance adjusting screws and the horizontal distance adjusting screws away from the screw caps, and the silicone gaskets are in contact with the surface of the display and control terminal.

[0016] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present utility model include:

[0017] The applicability vibration test fixture of the present utility model forms horizontal fixation of the display control terminal by screwing the horizontal distance adjustment screws at the ends of the side plate and the upper cover, so that the horizontal distance adjustment screws are in contact with the side surface of the display control terminal after rotating and advancing through the threads they have; at the same time, it also forms vertical fixation of the display control terminal by screwing the vertical distance adjustment screws on the fixed pressing plate and the movable pressing plate, so that the vertical distance adjustment screws are in contact with the upper end surface of the display control terminal after rotating and advancing through the threads they have, and cooperates with the screw caps and silica gel gaskets arranged at the ends of the vertical distance adjustment screws and the horizontal distance adjustment screws to increase the contact area at the ends of the vertical distance adjustment screws and the horizontal distance adjustment screws, and also forms a buffer through the silica gel gaskets to avoid direct contact between the ends of the vertical distance adjustment screws and the horizontal distance adjustment screws and the display control terminal, causing surface wear and collision damage to the display control terminal. Thus, while the test fixture is adapted to more display control terminals of different specifications for vibration testing, it avoids affecting the use performance of the display control terminal, maintains the integrity and functionality of the display control terminal, expands the applicable range of the test fixture, can be used for multiple purposes with one machine, reduces the risk of test damage to the display control terminal, reduces the test cost, and improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a side view structural schematic diagram of the present utility model;

[0020] Figure 3 is a bottom view structural schematic diagram of the present utility model.

[0021] In all the drawings, the same reference numerals represent the same technical features, specifically: 1, bottom plate; 2, upper cover; 3, fixed pressing plate; 4, movable pressing plate; 5, side plate; 6, fixing hole; 7, vertical distance adjustment screw; 8, horizontal distance adjustment screw; 9, reserved hole; 10, screw cap; 11, silica gel gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the present utility model in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. It should be noted here that the descriptions of these embodiments are used to help understand the present utility model, but do not constitute a limitation to the present utility model.

[0023] Embodiment:

[0024] As Figures 1-3As shown, this embodiment provides an applicability vibration test fixture, including a base plate 1 and an upper cover 2, the base plate 1 and the upper cover 2 are fixedly connected by bolts, a slot is penetrated in the middle of the upper cover 2 for the display and control terminal to be inserted, and a fixed pressure plate 3 and a movable pressure plate 4 are respectively provided at both ends, and side plates 5 are also integrally provided on both sides of the upper cover 2, and vertical adjustment screws 7 are threadedly connected on the fixed pressure plate 3 and the movable pressure plate 4, and one side plate 5 is also threadedly connected on the horizontal adjustment screw 8, and screw caps 10 are integrally provided at the ends of the vertical adjustment screw 7 and the horizontal adjustment screw 8, and silicone gaskets 11 are pasted on the screw caps 10.

[0025] In a specific application scenario, by screwing the horizontal pitch adjustment screw 8 at the end of the side plate 5 and the upper cover 2, the horizontal pitch adjustment screw 8 is rotated and pushed through the thread thereof to contact the side of the display and control terminal, thereby forming a horizontal fixation of the display and control terminal; at the same time, by screwing the vertical pitch adjustment screw 7 on the fixed pressure plate 3 and the movable pressure plate 4, the vertical pitch adjustment screw 7 is rotated and pushed through the thread thereof to contact the upper end surface of the display and control terminal, thereby forming a vertical fixation of the display and control terminal, and screw caps 10 and silicone gaskets 11 are provided at the ends of the vertical pitch adjustment screw 7 and the horizontal pitch adjustment screw 8 to increase the contact area of ​​the ends of the vertical pitch adjustment screw 7 and the horizontal pitch adjustment screw 8, and a buffer is formed by the silicone gasket 11 to avoid the ends of the vertical pitch adjustment screw 7 and the horizontal pitch adjustment screw 8 from directly contacting the display and control terminal, thereby causing surface wear and collision damage to the display and control terminal. The following further describes the applicability vibration test fixture of the utility model in combination with this application scenario.

[0026] Further, refer to Figures 1-3 The fixed pressing plate 3 and the upper cover 2 are integrally arranged, and both ends of the movable pressing plate 4 are detachably assembled with the upper end surface of the upper cover 2 by bolts.

[0027] In this embodiment, since the specifications of the display and control terminals are different in size, in order to avoid the display and control terminal being too tight when placed in the empty slot of the upper cover 2, a movable pressure plate 4 is provided which can be detachably assembled by bolts, thereby facilitating the placement of the display and control terminal in the empty slot of the upper cover 2, thereby improving the convenience of the test fixture during use.

[0028] For more details, see Figures 1-3 A hole is passed through the middle of the bottom plate 1 to reduce weight and a fixing hole 6 is provided in the hole, and the bottom plate 1 is fixed to the surface of the vibration table by bolts through the fixing hole 6.

[0029] In this embodiment, in order to reduce the weight of the base plate 1 and thus reduce the energy consumption during the vibration operation of the vibration table, a through hole is opened in the middle of the base plate 1 to reduce the weight. At the same time, in order to maintain the consistency between the base plate 1, the upper cover 2 and the vibration table, the base plate 1 is fixed to the surface of the vibration table by bolts through fixing holes 6.

[0030] More preferably, referring to Figures 1-3 One end of the upper cover 2 away from the fixed pressure plate 3 is also threadedly connected with a horizontal distance adjusting screw 8, and the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8 are arranged in pairs.

[0031] In this embodiment, in order to achieve limited fixation in both the horizontal and vertical directions during the process of horizontally fixing the display and control terminal, a horizontal distance adjusting screw 8 is also threadedly connected to the end of the upper cover 2 away from the fixed pressure plate 3, so as to cooperate with the horizontal distance adjusting screw 8 arranged on the side plate 5 to limit the display and control terminal in all directions; at the same time, the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8 are arranged in pairs to keep the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8 in multi-point contact with the surface of the display and control terminal, thereby maintaining the stability of the display and control terminal.

[0032] More preferably, referring to Figures 1-3 A plurality of reserved holes 9 are provided next to the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8. The inner wall of the reserved hole 9 is provided with threads and is compatible with the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8.

[0033] In this embodiment, since the display and control terminals have different sizes and are also provided with display screens and buttons, in order to avoid the ends of the vertical adjustment screws 7 and the horizontal adjustment screws 8 from interfering with the display screen or button parts of the display and control terminal, a number of reserved holes 9 are provided for use when the fixed position needs to be adjusted, and they are staggered with the display screen and buttons of the display and control terminal to maintain the integrity and functionality of the display and control terminal.

[0034] Furthermore, refer to Figures 1-3 The diameters of the screw cap 10 and the silicone gasket 11 are both larger than the diameters of the vertical pitch adjusting screw 7 and the horizontal pitch adjusting screw 8.

[0035] In this embodiment, in order to prevent the vertical pitch adjusting screw 7 and the horizontal pitch adjusting screw 8 from separating or falling off, the diameters of the screw cap 10 and the silicone gasket 11 are larger than the diameters of the vertical pitch adjusting screw 7 and the horizontal pitch adjusting screw 8 to form a limit, and the screw cap 10 and the silicone gasket 11 increase the contact area of ​​the ends of the vertical pitch adjusting screw 7 and the horizontal pitch adjusting screw 8 to form a buffer, thereby preventing the ends of the vertical pitch adjusting screw 7 and the horizontal pitch adjusting screw 8 from directly contacting the display and control terminal, causing surface wear and collision damage to the display and control terminal.

[0036] Furthermore, refer to Figures 1-3 The side panels 5 are each provided with a U-shaped groove through which the display and control terminal is taken and placed.

[0037] In this embodiment, in order to facilitate the tester to take out the display and control terminal from the empty slot of the upper cover 2, a "U"-shaped slot is opened on the side panel 5 to take and place the display and control terminal, which improves the convenience and replacement efficiency of the test fixture during use.

[0038] More specifically, referring to Figures 1-3 , anti-slip threads are provided at the tops of the vertical distance adjustment screw 7 and the horizontal distance adjustment screw 8 away from the screw cap 10, and the silicone gasket 11 abuts against the surface of the display and control terminal.

[0039] In this embodiment, in order to facilitate the tester to screw the vertical distance adjustment screw 7 and the horizontal distance adjustment screw 8, anti-slip threads are provided at the tops of the vertical distance adjustment screw 7 and the horizontal distance adjustment screw 8 to increase the friction at the tops of the vertical distance adjustment screw 7 and the horizontal distance adjustment screw 8. At the same time, the silicone gasket 11 abuts against the surface of the display and control terminal to realize the clamping and fixing of the display and control terminal.

[0040] Working principle:

[0041] For the applicability vibration test fixture of the present utility model, first, the bolt connection between the two ends of the movable pressing plate 4 and the upper end surface of the side plate 5 is released, and the movable pressing plate 4 is disassembled to expose the middle part of the upper cover 2. Then, the display and control terminal to be subjected to vibration test is placed into the empty slot of the upper cover 2. Subsequently, the movable pressing plate 4 is installed back on the upper end surface of the side plate 5 and fixed by threads;

[0042] After the display and control terminal is placed into the empty slot of the upper cover 2, the horizontal distance adjustment screw 8 provided at the end of the side plate 5 and the upper cover 2 is also screwed, so that the horizontal distance adjustment screw 8 abuts against the side surface of the display and control terminal after rotating and advancing through the threads it has, forming a horizontal fixation of the display and control terminal; at the same time, the vertical distance adjustment screw 7 provided on the fixed pressing plate 3 and the movable pressing plate 4 is also screwed, so that the vertical distance adjustment screw 7 abuts against the upper end surface of the display and control terminal after rotating and advancing through the threads it has, forming a vertical fixation of the display and control terminal. Thus, the tightening range of the test fixture is adjusted by screwing the vertical distance adjustment screw 7 and the horizontal distance adjustment screw 8, so that the test fixture can be adapted to more different specifications of display and control terminals for vibration test. Moreover, the bottom plate 1 is also bolted to the surface of the vibration table through the fixing holes 6, so as to drive the bottom plate 1, the upper cover 2 and the display and control terminal clamped and fixed in the upper cover 2 to perform vibration test synchronously when the vibration table is vibrating, avoiding the risk of damage to the display and control terminal due to incompatibility during the vibration test;

[0043] Meanwhile, screw caps 10 and silica gel gaskets 11 are provided at the ends of the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8, increasing the contact area at the ends of the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8, and also forming a buffer through the silica gel gasket 11 to prevent the direct contact between the ends of the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8 and the display control terminal, resulting in surface wear and collision damage to the display control terminal; and a number of reserved holes 9 adapted to the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8 are provided through the opening for use when the fixed position needs to be adjusted, preventing the ends of the vertical distance adjusting screw 7 and the horizontal distance adjusting screw 8 from contacting the display screen or the button part of the display control terminal, so as to avoid affecting the use performance of the display control terminal while meeting the requirements of vibration testing and maintaining the integrity and functionality of the display control terminal.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An applicable vibration test fixture, comprising a bottom plate (1) and an upper cover (2), wherein the bottom plate (1) and the upper cover (2) are fixedly connected by bolts, and is characterized in that : The middle of the upper cover (2) is provided with a slot for the display and control terminal to be inserted, and a fixed pressure plate (3) and a movable pressure plate (4) are respectively provided at both ends. Side plates (5) are also integrally provided on both sides of the upper cover (2). Vertical adjustment screws (7) are threadedly connected to the fixed pressure plate (3) and the movable pressure plate (4), and one of the side plates (5) is also threadedly connected to a horizontal adjustment screw (8). The ends of the vertical adjustment screw (7) and the horizontal adjustment screw (8) are integrally provided with screw caps (10), and silicone gaskets (11) are adhered to the screw caps (10).

2. The applicability vibration test fixture according to claim 1, characterized in that The fixed pressing plate (3) and the upper cover (2) are integrally arranged, and the two ends of the movable pressing plate (4) are detachably assembled with the upper end surface of the upper cover (2) by means of bolts.

3. The applicability vibration test fixture according to claim 1, wherein A hole is passed through the middle of the base plate (1) to reduce weight and the hole is provided with a fixing hole (6), and the base plate (1) is fixed to the surface of the vibration table by bolts through the fixing hole (6).

4. The applicability vibration test fixture according to claim 1, characterized in that, One end of the upper cover (2) away from the fixed pressure plate (3) is also threadedly connected with a horizontal distance adjusting screw (8), and the vertical distance adjusting screw (7) and the horizontal distance adjusting screw (8) are arranged in pairs.

5. The applicability vibration test fixture according to claim 1, characterized in that, A plurality of reserved holes (9) are provided beside the vertical distance adjusting screw (7) and the horizontal distance adjusting screw (8), and the inner walls of the reserved holes (9) are provided with threads and are compatible with the vertical distance adjusting screw (7) and the horizontal distance adjusting screw (8).

6. The applicability vibration test fixture according to claim 1, wherein The diameters of the screw cap (10) and the silicone gasket (11) are both larger than the diameters of the vertical spacing screw (7) and the horizontal spacing screw (8).

7. The applicability vibration test fixture according to claim 1, wherein The side panels (5) are each provided with a U-shaped groove, and the display and control terminal is taken in and placed through the U-shaped groove.

8. The applicability vibration test fixture according to claim 1, wherein The top ends of the vertical pitch adjusting screw (7) and the horizontal pitch adjusting screw (8) away from the screw cap (10) are both provided with anti-slip threads, and the silicone gasket (11) contacts the surface of the display and control terminal.

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