Combined vibration test sample fixing tool

Abstract

The utility model belongs to the technical field of vibration experiments, and particularly relates to a combined vibration test sample fixing tool which comprises a base, adjusting assemblies, a pressing assembly, a locking assembly and a limiting assembly, the adjusting assemblies are installed on the left side and the right side of the upper end of the base, the pressing assembly is installed at the upper ends of the adjusting assemblies, the locking assembly is installed at the lower ends of the adjusting assemblies, and the limiting assembly is installed on the base. The limiting assembly is installed in the middle of the upper end of the base. The adjusting assembly adjusts the position of the lower sliding table by sliding the lower sliding table, the position of the pressing assembly can be adjusted correspondingly according to the contact condition of a test sample and the base, it is ensured that the test sample is in attached contact with the base at the pressing position, and meanwhile the pressing assembly drives the pressing block to slide down through the locking rod; the pressing locking of the test sample is realized, the stable connection between the test sample and the base is ensured, and the accuracy of a vibration test result is improved.

Description

Technical Field

[0001] This utility model belongs to the field of vibration testing technology, specifically a combined vibration test sample fixing fixture. Background Technology

[0002] Vibration testing is a test method that uses simulated vibration environments to evaluate the reliability and durability of products or structures under transportation, use, or specific conditions. A combined vibration test sample refers to an object in which multiple samples or components are combined together for testing during vibration testing. The combined vibration test sample is fixed on the test device by a fixture, thereby evaluating the performance and reliability of the combined sample under vibration conditions and ensuring that it can work normally in the actual use environment.

[0003] In existing technology, a workpiece fixing device for a vibration test bench, application number CN202320724577.1, facilitates the fixing of the left and right sides of the workpiece and the top of the workpiece through the cooperation of a threaded rod, a threaded sleeve, a connecting rod, a side plate, a fixing column, a rotating rod, and a pressure plate. When the fixing column drives the middle of the side to slide and fix the workpiece, the connecting rod automatically drives the pressure plate to press down. However, when the test samples are of different sizes, it is possible that the side plate has already limited the test sample, but the pressure plate has not yet made contact with the test sample to limit it, affecting the locking and limiting effect of the test sample, thus affecting the accuracy of the vibration test results. To address this, we provide a combined vibration test sample fixing fixture. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and solve the problem that when test samples are of different sizes, the side plate may have already limited the test sample, but the pressure plate has not yet made contact with the test sample to limit it, which affects the locking and limiting effect of the test sample and thus affects the accuracy of the vibration test results, a combined vibration test sample fixing fixture is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a combined vibration test sample fixing fixture, comprising:

[0006] Base;

[0007] An adjustment component is installed on the left and right sides of the upper end of the base and is used to adjust the downward pressure position on the test sample.

[0008] The adjustment component includes:

[0009] A sliding groove is formed on the left and right sides of the upper end of the base. A sliding rod is fixedly installed inside the sliding groove. A fixing plate is fixedly installed on the upper end of the base on the side of the sliding groove away from the central axis. A through groove is formed in the middle of the fixing plate. A sliding platform is slidably connected to the outside of the sliding rod.

[0010] Preferably, an upper slide is rotatably connected to the upper end of the lower slide, and a first threaded post is fixedly installed on the side of the lower slide away from the central axis, with a locking nut threadedly connected to the outer side of the first threaded post.

[0011] Preferred options also include:

[0012] A pressing component, which is installed on the upper end of the adjusting component, is used to press down and lock the test sample.

[0013] Preferably, the pressing component includes:

[0014] The upper slide has a movable groove at the middle of its upper end. A movable platform is slidably connected to the upper end of the upper slide. A locking rod is threadedly connected to the middle of the upper end of the movable platform. Telescopic rods are fixedly installed on the front and rear sides of the lower end of the movable platform. A pressure plate is fixedly installed at the lower end of the telescopic rod. The lower end of the locking rod is threadedly connected to the pressure plate.

[0015] Preferred options also include:

[0016] A locking component is installed at the lower end of the adjustment component and is used to lock the adjustment component.

[0017] Preferably, the locking component includes:

[0018] A locking sleeve is slidably connected to the outside of the upper slide. A limit groove is opened on the side of the upper slide away from the central axis. A limit block is slidably connected inside the limit groove. A second threaded post is fixedly installed on the side of the limit block away from the central axis. A locking knob is threadedly connected to the outside of the second threaded post. A locking block is fixedly installed at the lower end of the limit block. A locking groove is opened on the upper end of the lower slide away from the central axis.

[0019] Preferred options also include:

[0020] A limiting component is installed at the middle of the upper end of the base and is used to limit the front and rear ends of the test sample.

[0021] Preferably, the limiting component includes:

[0022] A slot is formed in the middle of the upper part of the base. A double-ended lead screw is rotatably connected inside the slot. A slider is rotatably connected to the outside of the double-ended lead screw. A clamping plate is fixedly installed on the upper end of the slider. A rubber pad is glued to the side of the clamping plate near the central axis.

[0023] The beneficial effects of this utility model are:

[0024] The adjustment component of this invention adjusts the position of the sliding lower platform by means of a sliding lower platform. This allows for adjustment of the position of the pressing component according to the contact between the test sample and the base, ensuring that the test sample and the base are in close contact at the pressing position. At the same time, the pressing component drives the pressure block to slide down through the locking rod, thereby pressing and locking the test sample, ensuring a stable connection between the test sample and the base, and improving the accuracy of the vibration test results.

[0025] The locking component of this invention, through the cooperation of the locking sleeve and the locking block, facilitates the locking and unlocking of the lower slide and the upper slide, preventing the upper slide from always being at the top and affecting the placement of the test sample, thus facilitating subsequent vibration experiments. The limiting component, through the cooperation of the clamping plate and the double-ended screw, locks the front and rear ends of the test sample, ensuring the stability of the connection between the test sample and the base, and facilitating subsequent vibration experiments. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 This is a cross-sectional view of the base in this utility model;

[0029] Figure 3 This is an exploded view of the adjustment component in this utility model;

[0030] Figure 4 This is a cross-sectional view of the lower slide and upper slide in this utility model.

[0031] Legend:

[0032] 1. Base;

[0033] 2. Adjustment assembly; 201. Slide groove; 202. Slide rod; 203. Fixing plate; 204. Through groove; 205. Lower slide table; 206. Upper slide table; 207. First threaded post; 208. Locking nut;

[0034] 3. Pressing assembly; 301. Movable slot; 302. Movable platform; 303. Locking rod; 304. Telescopic rod; 305. Pressure plate;

[0035] 4. Locking assembly; 401. Locking sleeve; 402. Limiting groove; 403. Limiting block; 404. Second threaded post; 405. Locking knob; 406. Locking block; 407. Locking groove;

[0036] 5. Limiting component; 501. Empty slot; 502. Double-ended lead screw; 503. Slider; 504. Clamping plate; 505. Rubber pad. Detailed Implementation

[0037] 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.

[0038] Specific implementation examples are given below.

[0039] Example 1:

[0040] Please see Figures 1 to 4 This utility model provides a combined vibration test sample fixing fixture, including:

[0041] Base 1;

[0042] Adjustment component 2 is installed on the left and right sides of the upper end of the base 1 and is used to adjust the downward pressure position on the test sample;

[0043] The pressing component 3 is installed on the upper end of the adjusting component 2 and is used to press down and lock the test sample.

[0044] Locking component 4 is installed at the lower end of adjusting component 2 and is used to lock adjusting component 2;

[0045] Limiting component 5 is installed at the middle of the upper end of the base 1 and is used to limit the front and rear ends of the test sample.

[0046] In this embodiment, when conducting a vibration test on the combined vibration test sample, the combined vibration test sample is placed on the base 1. Then, the limiting component 5 is activated to limit the front and rear ends of the test sample, ensuring the connection between the test sample and the base 1. Subsequently, the adjusting component 2 drives the pressing component 3 to move, so as to adjust the position of the pressing component 3 according to the shape of the test sample and its contact position with the upper end of the base 1. Then, the pressing component 3 makes the test sample fit with the base 1, ensuring that the test sample is fixed on the base 1. The locking component 4 ensures the stability of the adjusting component 2.

[0047] Example 2:

[0048] Based on Embodiment 1, the adjustment component 2 and the pressing component 3 are further disclosed.

[0049] like Figure 1 and Figure 3As shown, the adjustment assembly 2 includes: a slide groove 201 formed on the left and right sides of the upper end of the base 1; a slide rod 202 fixedly installed inside the slide groove 201; a fixing plate 203 fixedly installed on the upper end of the base 1 on the side of the slide groove 201 away from the central axis; a through groove 204 formed in the middle of the fixing plate 203; a lower slide platform 205 slidably connected to the outside of the slide rod 202; an upper slide platform 206 rotatably connected to the upper end of the lower slide platform 205; and a first threaded post 20 fixedly installed on the side of the lower slide platform 205 away from the central axis. 7. A locking nut 208 is threadedly connected to the outer side of the first threaded post 207. The pressing assembly 3 includes: a movable groove 301 starting from the middle of the upper end of the upper slide table 206; a movable platform 302 is slidably connected to the upper end of the upper slide table 206; a locking rod 303 is threadedly connected to the middle of the upper end of the movable platform 302; a telescopic rod 304 is fixedly installed on the front and rear sides of the lower end of the movable platform 302; a pressure plate 305 is fixedly installed on the lower end of the telescopic rod 304; and the lower end of the locking rod 303 is threadedly connected to the pressure plate 305.

[0050] In this embodiment, after limiting the front and rear ends of the combined vibration test sample by the limiting component 5, the locking nut 208 on the first threaded post 207 is loosened, thereby releasing the lock on the lower slide 205. The lower slide 205 is slid according to the contact position between the bottom end of the vibration test sample and the base 1, and slid to the designated position. The first threaded post 207 will slide synchronously in the through groove 204 on the fixed plate 203, and the lower slide 205 will slide on the slide rod 202 in the slide groove 201 to ensure the stability of the lower slide 205 during sliding. Then, the locking nut 208 on the first threaded post 207 is tightened to make the locking nut 208 fit tightly against the fixed plate 203, thereby locking the lower slide 205. The pressing component 3 on the upper slide 206 will also follow. Slide to the designated position to facilitate adjustment of the position of the pressing component 3 according to the contact between the test sample and the base 1, ensuring that the test sample and the base 1 are in close contact at the pressing position, thus ensuring the stability of the test sample. Then, slide the movable stage 302 on the upper slide 206, and the locking rod 303 will also slide synchronously in the movable groove 301 to further ensure the accuracy of the position of the pressure plate 305. Tighten the locking rod 303 to drive the pressure plate 305 to press down, and the telescopic rod 304 will also extend accordingly to ensure the stability of the pressure plate 305 when it is pressed down, so that the lower end of the pressure plate 305 is in contact with the test sample and squeezes the test sample to be in contact with the base 1, thereby achieving the pressing and locking of the test sample, ensuring the stable connection between the test sample and the base 1, and improving the accuracy of the vibration test results.

[0051] Example 3:

[0052] Based on Embodiment 1, the locking component 4 is further disclosed.

[0053] like Figure 1 , Figure 3 and Figure 4As shown, the locking assembly 4 includes: a locking sleeve 401 slidably connected to the outside of the upper slide 206; a limiting groove 402 is provided on the side of the upper slide 206 away from the central axis; a limiting block 403 is slidably connected inside the limiting groove 402; a second threaded post 404 is fixedly installed on the side of the limiting block 403 away from the central axis; a locking knob 405 is threadedly connected to the outside of the second threaded post 404; a locking block 406 is fixedly installed at the lower end of the limiting block 403; and a locking groove 407 is provided on the upper end of the lower slide 205 away from the central axis.

[0054] In this embodiment, when the test sample is placed on the base 1, the locking knob 405 is loosened to release the locking sleeve 401. Then, the locking sleeve 401 is slid upwards, disengaging from the rotatable connection between the lower slide 205 and the upper slide 206. Simultaneously, the limiting block 403 also slides upwards within the limiting groove 402, following the locking sleeve 401, and drives the locking block 406 to slide upwards out of the locking groove 407, enabling free rotation of the lower slide 205 and the upper slide 206. Finally, the upper slide 206 is rotated to... To prevent the upper slide 206 from being positioned at the top and significantly affecting the placement of the test sample, after the test sample is placed, rotate the upper slide 206 to reset it. Then, slide the lower locking sleeve 401, causing the limit block 403 to slide down in the limit groove 402, and causing the locking block 406 to engage in the locking groove 407, thereby locking the lower slide 205 and the upper slide 206. Then, tighten the locking knob 405 on the second threaded post 404 to further ensure the stability of the connection between the lower slide 205 and the upper slide 206.

[0055] Example 4:

[0056] Based on Embodiment 1, the limiting component 5 is further disclosed.

[0057] like Figure 1 and Figure 2 As shown, the limiting component 5 includes: a slot 501 opened in the middle of the upper end of the base 1, a double-ended lead screw 502 rotatably connected inside the slot 501, a slider 503 rotatably connected to the outside of the double-ended lead screw 502, a clamping plate 504 fixedly installed on the upper end of the slider 503, and a rubber pad 505 glued to the side of the clamping plate 504 near the central axis.

[0058] In this embodiment, after the limiting component 5 is placed on the base 1, the motor is started to drive the double-headed lead screw 502 to rotate, thereby driving the slider 503 to slide in the slot 501, driving the clamping plate 504 to slide towards the center, releasing it from the test sample and pushing the test sample to slide towards the center, thereby locking the front and rear ends of the test sample, ensuring the stability of the connection between the test sample and the base 1, and facilitating the subsequent vibration experiment. At the same time, the rubber pad 505 increases the friction between the test sample and the clamping plate 504, improving the locking effect of the clamping plate 504 on the test sample.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A combined vibration test sample fixing fixture, characterized in that, include: Base (1); Adjustment component (2), which is installed on the left and right sides of the upper end of the base (1) and is used to adjust the downward pressure position on the test sample; The adjustment component (2) includes: A sliding groove (201) is provided on the left and right sides of the upper end of the base (1). A sliding rod (202) is fixedly installed inside the sliding groove (201). A fixing plate (203) is fixedly installed on the upper end of the base (1) on the side of the sliding groove (201) away from the central axis. A through groove (204) is provided in the middle of the fixing plate (203). A sliding lower platform (205) is slidably connected to the outside of the sliding rod (202).

2. The combined vibration test sample fixing fixture according to claim 1, characterized in that: The upper slide (206) is rotatably connected to the upper end of the lower slide (205). A first threaded post (207) is fixedly installed on the side of the lower slide (205) away from the central axis. A locking nut (208) is threadedly connected to the outer side of the first threaded post (207).

3. The combined vibration test sample fixing fixture according to claim 1, characterized in that, Also includes: The pressing component (3) is installed on the upper end of the adjusting component (2) and is used to press down and lock the test sample.

4. The combined vibration test sample fixing fixture according to claim 3, characterized in that, The pressing component (3) includes: The upper slide (206) starts at the middle of the upper part of the movable groove (301). The upper part of the upper slide (206) is slidably connected to the movable platform (302). The middle of the upper part of the movable platform (302) is threadedly connected to the locking rod (303). The lower part of the movable platform (302) is fixedly installed with the front and rear sides of the front and rear sides. The lower end of the telescopic rod (304) is fixedly installed with the pressure plate (305). The lower end of the locking rod (303) is threadedly connected to the pressure plate (305).

5. The combined vibration test sample fixing fixture according to claim 4, characterized in that, Also includes: A locking component (4) is installed at the lower end of the adjusting component (2) and is used to lock the adjusting component (2).

6. The combined vibration test sample fixing fixture according to claim 5, characterized in that, The locking component (4) includes: A locking sleeve (401) is slidably connected to the outside of the upper slide (206). A limiting groove (402) is opened on the side of the upper slide (206) away from the central axis. A limiting block (403) is slidably connected inside the limiting groove (402). A second threaded post (404) is fixedly installed on the side of the limiting block (403) away from the central axis. A locking knob (405) is threadedly connected to the outside of the second threaded post (404). A locking block (406) is fixedly installed at the lower end of the limiting block (403). A locking groove (407) is opened on the upper end of the lower slide (205) away from the central axis.

7. The combined vibration test sample fixing fixture according to claim 6, characterized in that, Also includes: Limiting component (5), which is installed at the middle of the upper end of the base (1) and is used to limit the front and rear ends of the test sample.

8. The combined vibration test sample fixing fixture according to claim 7, characterized in that, The limiting component (5) includes: A slot (501) is formed in the middle of the upper part of the base (1). A double-ended lead screw (502) is rotatably connected inside the slot (501). A slider (503) is rotatably connected to the outside of the double-ended lead screw (502). A clamping plate (504) is fixedly installed on the upper end of the slider (503). A rubber pad (505) is glued to the side of the clamping plate (504) near the central axis.

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