Sample piece fixing device of vibration test stand

Abstract

The utility model relates to a sample piece fixing device of a vibration test stand, which comprises a connecting frame main body, a sample piece fixing assembly and a limiting assembly, the connecting frame main body is provided with the sample piece fixing assembly, and the inner wall of one side of the connecting frame main body is provided with the limiting assembly; the sample piece fixing assembly comprises an air cylinder, a clamping frame, a first threaded hole, a rubber clamping disc, a first lead screw, a cross-shaped limiting groove, a first rotating groove, a cross-shaped limiting rod, a second connecting plate, a sliding plate, a moving plate, a second rotating groove, an adjusting plate, a spring and a guide rail. According to the utility model, the sample piece fixing assembly is adopted, the sample piece can be attached and clamped, and during vibration, the sample piece is limited through a thread structure, so that the fixed part of the sample piece is prevented from shaking, the test data of the sample piece is ensured to be more accurate, and the test effect is improved; and the limiting assembly is adopted, after the sample piece is clamped, the clamping structure can be limited and fixed, manual assistance is not needed, and the clamping effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of vibration testing technology, and in particular to a sample fixing device for a vibration testing bench. Background Technology

[0002] A vibration test bench is a type of experimental tool used to simulate the environment of electrical, electronic, automotive parts, and other products and goods involved in transportation during transport, and to test the vibration resistance of these products. When testing samples on a vibration test bench, a sample fixing device is required to hold the sample in place. However, existing sample fixing devices generally cannot hold the sample tightly, and during vibration, the fixing parts of the sample may move, thus affecting the test data, increasing the testing burden, and reducing the effectiveness of the device. Furthermore, after the sample is clamped, there is no way to limit the position of the clamping structure, requiring manual assistance, which reduces the clamping effect. Utility Model Content

[0003] The present invention addresses the problem of providing a sample fixing device for a vibration test bench, which can clamp the sample tightly and, during vibration, limits the sample through a threaded structure to prevent shaking of the fixed part of the sample, ensuring more accurate test data and improving test results. Moreover, after the sample is clamped, the clamping structure can be fixed in place without manual assistance, thus improving the clamping effect.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a sample fixing device for a vibration test bench, comprising a connecting frame body, a sample fixing component and a limiting component, wherein the sample fixing component is installed on the connecting frame body, and the limiting component is installed on one inner wall of the connecting frame body;

[0005] The sample fixing assembly includes a cylinder, a clamping frame, a first threaded hole, a rubber clamping disc, a first lead screw, a cross-shaped limiting groove, a first rotating groove, a cross-shaped limiting rod, a second connecting plate, a sliding plate, a movable plate, a second rotating groove, an adjusting plate, a spring, and a guide rail. Cylinders are embedded in both sides of the main body of the connecting frame. One end of the telescopic rod of each cylinder is fixedly connected to the clamping frame. The clamping frame has symmetrically formed first threaded holes, with a first lead screw threaded into each threaded hole. A rubber clamping disc is fixedly connected to the outer wall of one end of the first lead screw. A first rotating groove is formed on the outer wall of the other end of the first lead screw. A cross-shaped limiting groove is formed within the first rotating groove, and a cross-shaped limiting rod is limited and connected within the cross-shaped limiting groove. A second connecting plate is fixedly connected to the outer wall of one end of the cross-shaped limiting rod. Sliding plates are fixedly connected to both outer walls of the second connecting plate. Guide rails are installed on the second connecting plate and the sliding plates. A movable plate is installed on the outer side of one side of the guide rail. A second rotating groove is formed on both the movable plate and the second connecting plate, and an adjusting plate is rotatably connected within the second rotating groove.

[0006] Preferably, the limiting component includes a sliding groove, a motor, a second lead screw, a slider, a second threaded hole, and a limiting plate. A sliding groove is provided on one inner wall of the main body of the connecting frame. A motor is embedded in the inner wall of one side of the sliding groove. One end of the output shaft of the motor is fixedly connected to the second lead screw, and the other end of the second lead screw is rotatably connected to the inner wall of the sliding groove. A slider is symmetrically slidably connected in the sliding groove. A second threaded hole is provided on the slider corresponding to the position of the second lead screw. A limiting plate is welded to one outer wall of the slider.

[0007] Preferably, a test shaft is embedded in the inner wall of one side of the main body of the connecting frame.

[0008] Preferably, first connecting plates are welded to the outer walls on both sides of the main body of the connecting frame, and screws are sleeved inside the first connecting plates.

[0009] Preferably, the second lead screw is a bidirectional lead screw, and a protrusion is provided in the middle of the second lead screw.

[0010] The beneficial effects of this utility model are: the use of a sample fixing component can fit and clamp the sample, and during vibration, the threaded structure limits the sample to prevent shaking of the sample fixing part, ensuring that the test data of the sample is more accurate and improving the test effect.

[0011] The use of a limiting component allows for the limiting and fixing of the clamping structure after the sample is clamped, without the need for manual assistance, thus improving the clamping effect. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a front sectional view of the present invention;

[0014] Figure 3 This utility model Figure 2 Partial cross-sectional structural diagram;

[0015] Figure 4 This is a partial three-dimensional structural diagram of the fixing component of the present utility model.

[0016] Legend:

[0017] 1. Connecting frame body; 2. Sample fixing assembly; 3. Limiting assembly; 4. Test shaft; 5. First connecting plate; 6. Screw; 201. Cylinder; 202. Clamping frame; 203. First threaded hole; 204. Rubber clamping plate; 205. First lead screw; 206. Cross limiting groove; 207. First rotating groove; 208. Cross limiting rod; 209. Second connecting plate; 2010. Slide plate; 2011. Moving plate; 2012. Second rotating groove; 2013. Adjusting plate; 2014. Spring; 2015. Guide rail; 301. Slide groove; 302. Motor; 303. Second lead screw; 304. Slider; 305. Second threaded hole; 306. Limiting plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1

[0020] See Figures 1-4 A sample fixing device for a vibration test bench includes a connecting frame body 1, a sample fixing component 2, and a limiting component 3. The sample fixing component 2 is installed on the connecting frame body 1, and the limiting component 3 is installed on one inner wall of the connecting frame body 1. A test shaft 4 is embedded in one inner wall of the connecting frame body 1, which can be used to contact the sample for vibration testing. First connecting plates 5 are welded to the outer walls on both sides of the connecting frame body 1, and screws 6 are fitted inside the first connecting plates 5. The first connecting plates 5 on the connecting frame body 1 are placed in a designated position, and then the connecting frame body 1 is installed on the test bench by the screws 6.

[0021] The sample fixing assembly 2 includes a cylinder 201, a clamping frame 202, a first threaded hole 203, a rubber clamping plate 204, a first lead screw 205, a cross-shaped limiting groove 206, a first rotating groove 207, a cross-shaped limiting rod 208, a second connecting plate 209, a sliding plate 2010, a moving plate 2011, a second rotating groove 2012, an adjusting plate 2013, a spring 2014, and a guide rail 2015. Cylinders 201 are embedded and installed on both sides of the connecting frame body 1. One end of the telescopic rod of the cylinder 201 is fixedly connected to the clamping frame 202. The clamping frame 202 has symmetrically opened first threaded holes 203, with the first lead screw 205 threadedly connected to the first threaded hole 203. A [missing information - likely a component or component] is fixedly connected to the outer wall of one end of the first lead screw 205. The rubber clamping disc 204 has a first rotating groove 207 on the outer wall of the other end of the first lead screw 205. A cross-shaped limiting groove 206 is formed in the first rotating groove 207. A cross-shaped limiting rod 208 is connected in the cross-shaped limiting groove 206. A second connecting plate 209 is fixedly connected to the outer wall of one end of the cross-shaped limiting rod 208. Slide plates 2010 are fixedly connected to both outer walls of the second connecting plate 209. Guide rails 2015 are installed on the second connecting plate 209 and the slide plates 2010. A movable plate 2011 is installed on the outside of one side of the guide rail 2015. A second rotating groove 2012 is formed on the movable plate 2011 and the second connecting plate 209 respectively. An adjusting plate 2013 is rotatably connected in the second rotating groove 2012.

[0022] Working principle: First, place the first connecting plate 5 on the main body 1 of the connecting frame into the designated position. Then, install the main body 1 of the connecting frame onto the test bench using screws 6. At this time, place the sample into the clamping frame 202. Then, start the cylinder 201 to make the clamping frame 202 initially clamp the part. Then, pull the guide rail 2015 to make the second connecting plate 209 rotate. Then, under the action of the cross limit groove 206 and the cross limit rod 208, the first lead screw 205 rotates and moves. When it rotates to a certain angle, press the moving plate 2011. The adjusting plate 2013 rotates through the second rotating groove 2012. In this way, the adjusting plate 2013 squeezes the second connecting plate 209, causing the sliding plate 2010 on the second connecting plate 209 to move along the guide rail 2015. The cross-shaped limiting rod 208 is moved into the first rotating groove 207. At this time, the guide rail 2015 is rotated in the opposite direction, causing the second connecting plate 209 to rotate back to its original position. Then, the moving plate 2011 is released, and under the action of the spring 2014, the moving plate 2011 moves back to its original position. Then, under the action of the second rotating groove 2012, the adjusting plate 2013 drives the second connecting plate 209 to reset, so that the cross-shaped limiting rod 208 is reinserted into the cross-shaped limiting groove 206. Then, the above operation is repeated, so that the rubber clamping plate 204 fits and clamps the sample. It can fit and clamp the sample, and during vibration, the threaded structure limits the sample, preventing the fixed part of the sample from shaking, ensuring that the test data of the sample is more accurate and improving the test effect.

[0023] Example 2

[0024] See Figures 1-2 The limiting component 3 includes a slide groove 301, a motor 302, a second lead screw 303, a slider 304, a second threaded hole 305, and a limiting plate 306. A slide groove 301 is provided on one inner wall of the connecting frame body 1. A motor 302 is embedded in the inner wall of one inner wall of the slide groove 301. One end of the output shaft of the motor 302 is fixedly connected to the second lead screw 303, and the other end of the second lead screw 303 is rotatably connected to the inner wall of the slide groove 301. Slider 304s are symmetrically slidably connected within the slide groove 301. A second threaded hole 305 is provided on the second lead screw 303 at position 04. A limit plate 306 is welded on one side of the outer wall of the slider 304. The second lead screw 303 is a bidirectional lead screw, and a protrusion is provided in the middle of the second lead screw 303. The motor 302 is started to make the second lead screw 303 rotate. Then, under the action of the second threaded hole 305, the two sliders 304 move towards each other along the slide groove 301, and the position of the sliders 304 is limited by the protrusion on the second lead screw 303.

[0025] When the sample is clamped, the motor 302 is started to rotate the second lead screw 303. Then, under the action of the second threaded hole 305, the two sliders 304 move towards each other along the slide groove 301, thereby limiting the position of the limiting plate 306 on the guide rail 2015. In this way, when the sample is subjected to vibration test, the clamping structure can be prevented from loosening, ensuring the test effect of the sample. After the sample is clamped, the clamping structure can be limited and fixed without manual assistance, which improves the clamping effect.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sample fixing device for a vibration test bench, characterized in that, It includes a connecting frame body (1), a sample fixing component (2) and a limiting component (3). The sample fixing component (2) is installed on the connecting frame body (1), and the limiting component (3) is installed on the inner wall of one side of the connecting frame body (1). The sample fixing assembly (2) includes a cylinder (201), a clamping frame (202), a first threaded hole (203), a rubber clamping plate (204), a first lead screw (205), a cross-shaped limiting groove (206), a first rotating groove (207), a cross-shaped limiting rod (208), a second connecting plate (209), a sliding plate (2010), a moving plate (2011), a second rotating groove (2012), an adjusting plate (2013), a spring (2014), and a guide rail (2015). Cylinders (201) are embedded in both sides of the main body (1). One end of the telescopic rod of the cylinder (201) is fixedly connected to the clamping frame (202). The clamping frame (202) has symmetrically opened first threaded holes (203). The first threaded hole (203) is threadedly connected to the first lead screw (205). One end of the first lead screw (205) is fixedly connected to the outer wall of the outer wall. A rubber clamping disc (204) is provided. A first rotating groove (207) is provided on the outer wall of the other end of the first lead screw (205). A cross limiting groove (206) is provided in the first rotating groove (207). A cross limiting rod (208) is limited and connected in the cross limiting groove (206). A second connecting plate (209) is fixedly connected to the outer wall of one end of the cross limiting rod (208). A sliding plate (2010) is fixedly connected to both outer walls of the second connecting plate (209). A guide rail (2015) is installed on the second connecting plate (209) and the sliding plate (2010). A moving plate (2011) is installed on the outside of one side of the guide rail (2015). A second rotating groove (2012) is provided on the moving plate (2011) and the second connecting plate (209). An adjusting plate (2013) is rotatably connected in the second rotating groove (2012).

2. The sample fixing device for a vibration test bench according to claim 1, characterized in that, The limiting component (3) includes a slide groove (301), a motor (302), a second lead screw (303), a slider (304), a second threaded hole (305), and a limiting plate (306). A slide groove (301) is provided on one inner wall of the connecting frame body (1). A motor (302) is embedded in the inner wall of one side of the slide groove (301). One end of the output shaft of the motor (302) is fixedly connected to the second lead screw (303), and the other end of the second lead screw (303) is rotatably connected to the inner wall of the slide groove (301). A slider (304) is symmetrically slidably connected in the slide groove (301). A second threaded hole (305) is provided on the slider (304) corresponding to the position of the second lead screw (303). A limiting plate (306) is welded on one outer wall of the slider (304).

3. The sample fixing device for a vibration test bench according to claim 1, characterized in that, The test shaft (4) is inlaid on the inner wall of one side of the main body (1) of the connecting frame.

4. The sample fixing device for a vibration test bench according to claim 1, characterized in that, The two outer walls of the main body (1) of the connecting frame are welded with first connecting plates (5), and screws (6) are sleeved inside the first connecting plates (5).

5. The sample fixing device for a vibration test bench according to claim 2, characterized in that, The second lead screw (303) is a bidirectional lead screw, and a protrusion is provided in the middle of the second lead screw (303).

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