A universal vibration fixture

Abstract

The utility model relates to the technical field of avionics equipment testing, specifically a universal vibration fixture, including a mounting frame, the inner wall of which is slidably mounted with eight sliding blocks, the upper end of each of the sliding blocks is fixedly mounted with a limiting bracket, the side end of each of the first fixtures is slidably mounted with a rotating push rod, four mounting bases are mounted inside the mounting frame, and the upper end of each of the mounting bases is mounted with a harness strip. The improved universal vibration fixture facilitates position adjustment of the internal connecting parts of the device by sliding the sliding block inside the third limiting slot, sliding the first fixture inside the first limiting slot, and sliding the second fixture inside the second limiting slot, and then clamping and fixing with the fixed handle, push plate, rotating push rod and other parts, so that the device can quickly clamp and fix samples of different sizes when in use, thereby improving the efficiency of the device and enhancing the practicality of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of avionics equipment testing, in particular to a universal vibration fixture. Background Art

[0002] The mechanical environment of avionics equipment on aircraft is relatively harsh. Fatigue damage of components or materials caused by vibration can cause failure of electronic products. Analyzing the response under the specified external force load or environmental load conditions of the test provides a basis for reasonable component layout design, circuit board assembly structure design and chassis structure design.

[0003] At present, most vibration platform fixing screw holes adopt uniform screw hole diameter, depth and distribution. There are a small number of vibration platform fixing screw holes with differences. In order to adapt to vibration platforms of different specifications and meet the response during the vibration test, a vibration fixture that can accommodate most vibration platform fixing methods is designed. Utility Model Content

[0004] The purpose of the present utility model is to provide a universal vibration clamp to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a universal vibration clamp, comprising a mounting frame, the inner wall of the mounting frame is slidably mounted with eight sliding blocks, the upper end of each sliding block is fixedly mounted with a limiting bracket, the interior of each limiting bracket is slidably mounted with a push plate, the interior of the mounting frame is slidably mounted with eight second fixers, the interior of the mounting frame is slidably mounted with eight first fixers, the side end of each first fixer is slidably mounted with a rotating push rod, the interior of the mounting frame is mounted with four mounting bases, and the upper end of each mounting base is mounted with a wiring harness strip.

[0005] Further preferably, eleven fixing screw holes are provided on the outer surface of the upper end portion of the mounting frame, eight first threaded holes are provided inside the mounting frame, and a third limiting sliding groove is provided on the inner wall of the mounting frame.

[0006] Further preferably, a buffer pad is fixedly installed inside each of the mounting bases, a third threaded hole is opened on the left and right sides of each of the mounting bases, a bolt is rotatably installed inside each of the third threaded holes, and each of the mounting bases is installed inside the mounting frame by means of bolts cooperating with the first threaded holes.

[0007] Further preferably, nuts are rotatably installed on the left and right sides of the wiring harness strip, two fourth threaded holes are provided on the upper end of each mounting base, and each wiring harness strip is slidably installed above the mounting base through the cooperation of the nut and the fourth threaded hole.

[0008] Further preferably, a first limiting slide groove is opened inside the mounting frame, and each of the first fixers is slidably installed inside the mounting frame through the first limiting slide groove; a second limiting slide groove is opened inside the mounting frame, and each of the second fixers is slidably installed inside the mounting frame through the second limiting slide groove.

[0009] Further preferably, each of the sliding blocks is slidably installed on the inner wall of the mounting frame by cooperating with the third limiting sliding groove, a connecting ring is fixedly installed on the side end of each sliding block, a second threaded hole is opened inside each limiting bracket, a threaded rotating rod is rotatably installed on the upper end of each push plate, each push plate is slidably installed inside the limiting bracket by cooperating with the threaded rotating rod and the second threaded hole, and a fixed handle is fixedly installed on the upper end of each threaded rotating rod.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] In the utility model, by sliding a sliding block inside the third limiting groove, sliding a first fixer inside the first limiting groove, and sliding a second fixer inside the second limiting groove, it is convenient to adjust the position of the internal connecting parts of the device, and then cooperate with the fixed handle, push plate, rotating push rod and other parts to clamp and fix, so that the device can quickly clamp and fix samples of different sizes when in use, thereby improving the efficiency of the device and enhancing the practicality of the device.

[0012] In the utility model, the cables connected to the samples are gathered together and clamped and fixed on a mounting base and a harness strip, so that the influence of the cables on the test samples is reduced when the device is in use, thereby further improving the test accuracy and the efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation framework structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the first fixer of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the sliding block of the utility model;

[0016] Figure 4 This is a schematic diagram of the wiring harness pressure strip structure of the utility model.

[0017] In the figure: 1. Mounting frame; 11. Fixing screw hole; 12. First threaded hole; 13. First limiting slide groove; 14. First fixer; 15. Rotating push rod; 16. Second limiting slide groove; 17. Second fixer; 18. Third limiting slide groove; 2. Sliding block; 21. Connecting ring; 22. Limiting bracket; 23. Second threaded hole; 24. Threaded rotating rod; 25. Push plate; 26. Fixed handle; 3. Mounting base; 31. Buffer pad; 32. Third threaded hole; 33. Bolt; 34. Fourth threaded hole; 35. Wiring strip; 36. Nut. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 4 The utility model provides a technical solution: a universal vibration clamp, including a mounting frame 1, eight sliding blocks 2 are slidably installed on the inner wall of the mounting frame 1, a limiting bracket 22 is fixedly installed on the upper end of each sliding block 2, a pushing plate 25 is slidably installed inside each limiting bracket 22, eight second fixers 17 are slidably installed inside the mounting frame 1, eight first fixers 14 are slidably installed inside the mounting frame 1, a rotating push rod 15 is slidably installed on the side end of each first fixer 14, four mounting bases 3 are installed inside the mounting frame 1, and a wiring harness strip 35 is installed on the upper end of each mounting base 3.

[0020] In this embodiment, Figure 1 As shown, eleven fixing screw holes 11 are provided on the outer surface of the upper end of the mounting frame 1, eight first threaded holes 12 are provided inside the mounting frame 1, and a third limiting slide groove 18 is provided on the inner wall of the mounting frame 1. This structure can facilitate the installation of the entire device by cooperating with the threaded structure through the fixing screw holes 11 provided on the upper surface of the mounting frame 1, and install it at a designated position for easy use.

[0021] In this embodiment, Figure 1As shown, a buffer pad 31 is fixedly installed inside each mounting base 3, and a third threaded hole 32 is opened on the left and right sides of each mounting base 3. A bolt 33 is rotatably installed inside each third threaded hole 32. Each mounting base 3 is mounted inside the mounting frame 1 through the bolt 33 and the first threaded hole 12. This structure can be quickly installed and disassembled by using the bolts 33 installed inside the third threaded holes 32 on both sides of the mounting base 3, thereby cooperating with the first threaded holes 12 when in use.

[0022] In this embodiment, Figure 1 As shown, nuts 36 are rotatably installed on the left and right sides of the wiring harness strip 35, and two fourth threaded holes 34 are provided on the upper end of each mounting base 3. Each wiring harness strip 35 is slidably installed on the top of the mounting base 3 through the cooperation of the nuts 36 and the fourth threaded holes 34. This structure can quickly adjust the position of the wiring harness strip 35 up and down by cooperating with the nuts 36 on both sides of the wiring harness strip 35 and the fourth threaded holes 34 on the top of the mounting base 3, so as to facilitate the clamping of cables of different thicknesses.

[0023] In this embodiment, Figure 1 As shown, a first limiting groove 13 is provided inside the mounting frame 1, and each first fixture 14 is slidably installed inside the mounting frame 1 through the first limiting groove 13. A second limiting groove 16 is provided inside the mounting frame 1, and each second fixture 17 is slidably installed inside the mounting frame 1 through the second limiting groove 16. This structure can quickly adjust the spacing and position between the first fixtures 14 by sliding the first fixture 14 in the first limiting groove 13, and quickly adjust the spacing and position between the second fixtures 17 by sliding the second fixing 17 in the second limiting groove 16, thereby facilitating the rapid limiting installation of samples of different sizes.

[0024] In this embodiment, Figure 1 As shown, each sliding block 2 is slidably installed on the inner wall of the mounting frame 1 by cooperating with the third limiting sliding groove 18, a connecting ring 21 is fixedly installed on the side end of each sliding block 2, a second threaded hole 23 is opened inside each limiting bracket 22, a threaded rotating rod 24 is rotatably installed on the upper end of each pushing plate 25, each pushing plate 25 is slidably installed inside the limiting bracket 22 through the threaded rotating rod 24 and the second threaded hole 23, and a fixed handle 26 is fixedly installed on the upper end of each threaded rotating rod 24. This structure can drive the threaded rotating rod 24 to rotate and cooperate with the upper limiting bracket 22 and the second threaded hole 23 by rotating the fixed handle 26, thereby driving the pushing plate 25 to slide up and down and contact the upper surface of the mounting frame 1, thereby facilitating clamping and fixing.

[0025] The use method and advantages of the utility model: When the universal vibration clamp is used, the working process is as follows:

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, first, when using, the user places the device on a horizontal surface, picks up the installation frame 1, installs eight first fixtures 14 in the first limiting slots 13 opened inside the installation frame 1, slides and installs the rotating push rod 15 on the side end of each first fixture 14, then picks up eight second fixtures 17, installs each second fixture 17 in the second limiting slots 16 opened inside the installation frame 1, then picks up the sliding block 2, installs the connecting ring 21 on the side end of the sliding block 2, installs the upper limit bracket 22 above the sliding block 2, then installs the threaded rotating rod 24 in the second threaded hole 23 opened inside the limiting bracket 22, and then installs the threaded rotating rod 24 at the bottom of the threaded rotating rod 24. The push plate 25 is then installed on the threaded rotating rod 24, and then the fixed handle 26 is installed on the top of the threaded rotating rod 24. After assembling the eight sliding blocks 2 and other parts, the user installs each sliding block 2 to the inner wall of the mounting frame 1 through the third limiting sliding groove 18 opened on the inner wall of the mounting frame 1. Then the user picks up the mounting base 3, installs the buffer pad 31 inside the mounting base 3, and then installs the bolts 33 in the third threaded holes 32 opened on the left and right sides of the mounting base 3. Then, the wiring harness pressure strip 35 is installed on the top of the mounting base 3, and nuts 36 are installed on both sides of the wiring harness pressure strip 35. The wiring harness pressure strip 35 is installed along the nuts 36 and the two fourth threaded holes 34 opened on the top of the mounting base 3. Then, the four mountings are assembled. After the base 3 and other parts are installed, the user will match each mounting base 3 with the first threaded hole 12 opened inside the mounting frame 1 along the bolt 33 to install. When the user needs to use the device, the user will match the fixing screw hole 11 opened along the outer surface of the mounting frame 1 with the threaded structure to install it to the specified position. Then the user picks up the sample to be tested, connects it with the connecting ring 21 through the threaded structure, and then slides the other several sliding blocks 2 structures to connect the openings on one side of the sample with the connecting ring 21 through the threaded structure. Then the user turns the fixing handle 26, and the fixing handle 26 cooperates with the threaded rotating rod 24 and the second threaded hole 23 to drive the push plate 25 to slide down so as to connect with the upper surface of the mounting frame 1. The user then slides the first fixer 14 in the first limiting groove 13, slides the second fixer 17 in the second limiting groove 16, and then cooperates with the threaded structure to connect and fix the other three sides of the sample. Then, the rotating push rod 15 at the side end of the first fixer 14 is rotated to fix the position of the first fixer 14 in the same way. Then, the user inserts the cable into the side end of the sample, and then passes the cable through the mounting base 3 and the wiring harness strip 35. Subsequently, the two nuts 36 are rotated to cooperate with the fourth threaded hole 34 to press down to fix the cable. Then, after multiple test samples are installed inside the mounting frame 1 as needed, the vibrator is started to perform a vibration test on the internal device of the mounting frame 1.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A universal vibration fixture, comprising a mounting frame (1), characterized in that: The inner wall of the installation frame (1) is slidably mounted with eight sliding blocks (2), the upper end of each sliding block (2) is fixedly mounted with a limit bracket (22), the interior of each limit bracket (22) is slidably mounted with a push plate (25), the interior of the installation frame (1) is slidably mounted with eight second fixers (17), the interior of the installation frame (1) is slidably mounted with eight first fixers (14), the side end of each first fixer (14) is slidably mounted with a rotating push rod (15), the interior of the installation frame (1) is mounted with four installation bases (3), the upper end of each installation base (3) is mounted with a wiring harness pressure strip (35).

2. A universal vibration fixture according to claim 1, characterized in that: Eleven fixing screw holes (11) are provided on the outer surface of the upper end of the installation frame (1), eight first threaded holes (12) are provided inside the installation frame (1), and a third limiting sliding groove (18) is provided on the inner wall of the installation frame (1).

3. A universal vibration fixture according to claim 2, characterized in that: A buffer pad (31) is fixedly installed inside each of the mounting bases (3); a third threaded hole (32) is opened on the left and right sides of each of the mounting bases (3); a bolt (33) is rotatably installed inside each of the third threaded holes (32); and each of the mounting bases (3) is mounted inside the mounting frame (1) by means of the bolt (33) in cooperation with the first threaded hole (12).

4. A universal vibration fixture according to claim 1, characterized in that: Nuts (36) are rotatably mounted on both left and right sides of the wiring harness pressure strip (35), and two fourth threaded holes (34) are provided at the upper end of each mounting base (3). Each wiring harness pressure strip (35) is slidably mounted above the mounting base (3) by means of a nut (36) cooperating with the fourth threaded hole (34).

5. A universal vibration fixture according to claim 1, characterized in that: A first limiting slide groove (13) is provided inside the installation frame (1), and each of the first fixers (14) is slidably installed inside the installation frame (1) through the first limiting slide groove (13); a second limiting slide groove (16) is provided inside the installation frame (1), and each of the second fixers (17) is slidably installed inside the installation frame (1) through the second limiting slide groove (16).

6. A universal vibration fixture according to claim 2, characterized in that: Each of the sliding blocks (2) is slidably mounted on the inner wall of the mounting frame (1) by cooperating with the third limiting sliding groove (18); a connecting ring (21) is fixedly mounted on the side end of each of the sliding blocks (2); a second threaded hole (23) is opened inside each of the limiting brackets (22); a threaded rotating rod (24) is rotatably mounted on the upper end of each of the pushing plates (25); each of the pushing plates (25) is slidably mounted inside the limiting bracket (22) by cooperating with the threaded rotating rod (24) and the second threaded hole (23); and a fixed handle (26) is fixedly mounted on the upper end of each of the threaded rotating rods (24).

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