Jig applied to balance vibration test of cooling fan

Abstract

The utility model relates to the technical field of heat radiators, and discloses a jig applied to a balance vibration test of a heat radiation fan, which comprises a working table, a test mechanism is arranged on the surface of the working table, the test mechanism comprises a laser probe and a vibration disc, and the vibration disc is fixedly arranged on the surface of the working table. According to the jig applied to the balance vibration test of the cooling fan, due to the arrangement of the first shaft rod and the second shaft rod, the inclination angle of the jig can be adjusted at will, due to the arrangement of the rotating block, the testing direction can be adjusted at will, the vibration sensor is installed at the top end of the testing mechanism, and therefore the testing range of the jig can be adjusted at will; when the testing mechanism is in contact with the axis of a fan blade, the vibration of the central position of the fan can be tested, and when the testing mechanism is in contact with the fixed frame, the peripheral vibration data of the whole fan can be collected, in conclusion, due to the flexible arrangement of the testing mechanism, the testing range of the whole device for the cooling fan is enlarged, and the testing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of radiators, in particular to a jig used for balance vibration testing of a cooling fan. Background Art

[0002] Cooling fans are essential components in many electronic devices, used to help dissipate heat and ensure normal operation. To ensure the quality and performance of cooling fans, especially to reduce vibration caused by imbalance, special balance vibration tests are required. This test usually uses specific fixtures to assist in completion.

[0003] However, most existing testing fixtures test balance vibration data by installing vibration sensors on the axis or blades of the cooling fan. This not only makes installation and disassembly time-consuming and labor-intensive, but also has a limited scope of application for cooling fan vibration testing, making the test somewhat inconvenient. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above-mentioned shortcomings or the shortcomings of the prior art in that the test application scope is small, a fixture for a heat dissipation fan balance vibration test is proposed.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A jig for balancing and vibrating a cooling fan comprises a workbench, wherein a testing mechanism is provided on the surface of the workbench, wherein the testing mechanism comprises a bottom block, wherein the bottom block is fixedly mounted on the surface of the workbench, a rotating block is movably mounted on the surface of the bottom block, a first shaft rod is fixedly mounted on the top of the rotating block, a main rod is movably mounted on the top of the first shaft rod, a second shaft rod is fixedly mounted on the surface of the top of the main rod, a cross bar is movably mounted on the outer side of the second shaft rod, a fixed block is fixedly mounted on the top of the cross bar, a sleeve rod is fixedly mounted on the surface of the fixed block, a transmission rod is fixedly mounted on the bottom of the sleeve rod, and a vibration sensor is fixedly mounted on the top of the transmission rod.

[0008] As a further solution of the present invention: a clamping mechanism is provided on one side of the testing mechanism, and the clamping mechanism includes a buffer spring, and the buffer spring is fixedly connected to the workbench.

[0009] As a further solution of the present invention: a limiting telescopic rod is fixedly installed on the inner side of the buffer spring, and a placement plate is fixedly installed on the top of the limiting telescopic rod and the buffer spring.

[0010] As a further solution of the present invention: mounting grooves are provided on all four sides of the surface of the placement plate, and screw rods are movably installed inside the mounting grooves.

[0011] As a further solution of the present invention: a torsion plate is fixedly mounted on the outer side of the screw rod, and a rotating rod is fixedly mounted on the surface of the torsion plate.

[0012] As a further solution of the present invention: a moving block is threadedly installed on the surface of the screw rod, and a clamping plate is fixedly installed on the top of the moving block.

[0013] As a further solution of the present invention: a fixing frame is movably mounted on the inner side of the clamping plate, and a fan body is movably mounted on the inner side of the fixing frame.

[0014] As a further solution of the present invention: a conveying line is fixedly installed on the outer side of the sleeve rod, and the other end of the conveying line is fixedly connected to a main control mechanism.

[0015] As a further solution of the present invention: the main control mechanism includes a control box, and the control box is fixedly connected to the workbench.

[0016] As a further solution of the present invention: a display screen is provided on the surface of the control box, and an operation button is fixedly installed on the bottom of the display screen.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model provides a site for installing a test mechanism and a clamping mechanism by setting a workbench. A test mechanism is set on the surface of the workbench, which is used to test the balance and oscillation of the cooling fan. The test mechanism is provided with multiple joints as a whole. Among them, due to the setting of the first shaft and the second shaft, the inclination angle can be adjusted at will. Through the setting of the rotating block, the direction of the test can be adjusted at will. The vibration sensor is installed at the top position of the test mechanism, so its test range can also be adjusted at will. When it contacts the axis of the fan blade, the vibration of the center position of the fan can be tested. When it contacts the fixed frame, the peripheral vibration data of the entire fan can be collected. In summary, due to the flexible setting of the test mechanism, the test range of the cooling fan of the overall device is improved, which greatly improves the efficiency of the test.

[0019] 2. The utility model provides a clamping mechanism, which can facilitate the formation of a fixed limit for the cooling fan to prevent position displacement during the balance vibration test, thereby affecting the accuracy of the test data. The clamping plate in the clamping mechanism will be affected by the rotation of the screw and move back and forth. The user can control the rotation of the screw by twisting the rotating rod, thereby achieving the purpose of controlling the displacement of the clamping plate. When the clamping plates on both sides move inward at the same time, the position of the cooling fan can be restricted. A buffer spring is provided at the contact position between the clamping mechanism and the workbench, which can simulate the environment when the cooling fan is actually installed, thereby enhancing the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a frontal perspective schematic diagram of the overall structure of a fixture used for balance vibration testing of cooling fans;

[0021] Figure 2 A schematic diagram of the overall structure of a fixture used for balance vibration testing of cooling fans from a rear perspective;

[0022] Figure 3 A partially enlarged schematic diagram of the fixture clamping mechanism used in a cooling fan balance vibration test;

[0023] Figure 4 A partially enlarged schematic diagram of a fixture buffer spring structure used in a cooling fan balance vibration test;

[0024] Figure 5 This is a partially enlarged schematic diagram of the structure of a fixture test mechanism used for cooling fan balance vibration testing.

[0025] In the figure: 1. workbench; 2. testing mechanism; 201. bottom block; 202. rotating block; 203. first shaft; 204. main rod; 205. second shaft; 206. cross bar; 207. fixed block; 208. sleeve rod; 209. transmission rod; 2010. vibration sensor; 3. clamping mechanism; 301. buffer spring; 302. position limiting telescopic rod; 303. placement plate; 304. mounting slot; 305. screw rod; 306. torsion plate; 307. rotating rod; 308. moving block; 309. clamping plate; 4. fixing frame; 5. fan body; 6. conveyor line; 7. main control mechanism; 701. control box; 702. display screen; 703. operation button. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it designate a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] See also Figure 1-5 , which is the first embodiment of the present utility model, provides a fixture for balancing and vibrating test of cooling fans, including a workbench 1, a testing mechanism 2 is provided on the surface of the workbench 1, the testing mechanism 2 includes a bottom block 201, the bottom block 201 is fixedly mounted on the surface of the workbench 1, a rotating block 202 is movably mounted on the surface of the bottom block 201, a first shaft 203 is fixedly mounted on the top of the rotating block 202, a main rod 204 is movably mounted on the top of the first shaft 203, a second shaft 205 is fixedly mounted on the surface of the top of the main rod 204, a cross bar 206 is movably mounted on the outer side of the second shaft 205, a fixed block 207 is fixedly mounted on the top of the cross bar 206, a sleeve rod 208 is fixedly mounted on the surface of the fixed block 207, a transmission rod 209 is fixedly mounted on the bottom of the sleeve rod 208, and a vibration sensor 2010 is fixedly mounted on the top of the transmission rod 209.

[0031] Specifically, a clamping mechanism 3 is provided on one side of the testing mechanism 2 . The clamping mechanism 3 includes a buffer spring 301 . The buffer spring 301 is fixedly connected to the workbench 1 .

[0032] Furthermore, by providing the clamping mechanism 3 , it is convenient to form a fixed limit for the fan that needs to undergo a balanced oscillation test.

[0033] Specifically, a limiting telescopic rod 302 is fixedly installed on the inner side of the buffer spring 301 , and a placement plate 303 is fixedly installed on the top of the limiting telescopic rod 302 and the buffer spring 301 .

[0034] Furthermore, by setting the limiting telescopic rod 302, the stability of the buffer spring 301 is enhanced to prevent it from shaking greatly. By setting the placement plate 303, a testing site is provided for the cooling fan.

[0035] Specifically, mounting grooves 304 are formed around the surface of the placement plate 303 , and screw rods 305 are movably installed inside the mounting grooves 304 .

[0036] Furthermore, the provision of the mounting groove 304 facilitates providing a space for the screw rod 305 to be installed.

[0037] Specifically, a torsion plate 306 is fixedly mounted on the outer side of the screw rod 305 , and a rotating rod 307 is fixedly mounted on the surface of the torsion plate 306 .

[0038] Furthermore, the provision of the torsion plate 306 and the rotation rod 307 facilitates the user to control the displacement of the clamping plate 309 .

[0039] Specifically, a moving block 308 is threadedly mounted on the surface of the screw rod 305 , and a clamping plate 309 is fixedly mounted on the top of the moving block 308 .

[0040] Furthermore, by providing the moving block 308 , the screw rod 305 can drive the clamping plate 309 to move via the thread.

[0041] Example 2

[0042] See also Figure 1-5 , which is the second embodiment of the present utility model.

[0043] Specifically, the fixing frame 4 is movably mounted on the inner side of the clamping plate 309 , and the fan body 5 is movably mounted on the inner side of the fixing frame 4 .

[0044] Furthermore, the provision of the fixing frame 4 facilitates enhancing the installation strength of the fan body 5 .

[0045] Specifically, a conveying line 6 is fixedly installed on the outer side of the sleeve rod 208, and the other end of the conveying line 6 is fixedly connected to the main control mechanism 7.

[0046] Furthermore, the provision of the conveyor line 6 facilitates the transmission of the test data of the vibration sensor 2010 to the main control mechanism 7 .

[0047] Specifically, the main control mechanism 7 includes a control box 701 , and the control box 701 is fixedly connected to the workbench 1 .

[0048] Furthermore, through the setting of the control box 701, it is convenient to perform relevant processing on the collected data and convert it into a digital signal to be displayed on the display screen 702.

[0049] Specifically, a display screen 702 is provided on the surface of the control box 701 , and an operation button 703 is fixedly installed on the bottom of the display screen 702 .

[0050] Furthermore, the display screen 702 is provided to facilitate data collection by the user, and the operation buttons 703 are provided to facilitate electrical control of the device by the user.

[0051] When in use, first place the cooling fan on the surface of the placement plate 303, and twist the rotating rod 307 to control the clamping plate 309 to limit and fix the fan, then adjust the position of the vibration sensor 2010 so that it contacts the fan to the position to be tested. At this time, power on the cooling fan to make it run, and the vibration data generated during the operation will be collected by the vibration sensor 2010 and displayed on the display screen 702.

[0052] It is important to note that the construction and arrangement of the present application, as shown in various exemplary embodiments, are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various components, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, an element shown as integrally formed may be constructed from multiple parts or elements, the position of an element may be inverted or otherwise altered, and the nature, number, or position of discrete elements may be modified or changed. All such modifications are therefore intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures described herein that perform the function described, and not only structural equivalence but also equivalent structures. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0054] It will be understood that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A fixture for cooling fan balance vibration test, comprising a workbench (1), characterized in that: A testing mechanism (2) is provided on the surface of the workbench (1), and the testing mechanism (2) comprises a bottom block (201), the bottom block (201) is fixedly mounted on the surface of the workbench (1), a rotating block (202) is movably mounted on the surface of the bottom block (201), a first shaft (203) is fixedly mounted on the top of the rotating block (202), a main rod (204) is movably mounted on the top of the first shaft (203), a second shaft (205) is fixedly mounted on the surface of the top of the main rod (204), a cross bar (206) is movably mounted on the outer side of the second shaft (205), a fixed block (207) is fixedly mounted on the top of the cross bar (206), a sleeve rod (208) is fixedly mounted on the surface of the fixed block (207), a transmission rod (209) is fixedly mounted on the bottom of the sleeve rod (208), and a vibration sensor (2010) is fixedly mounted on the top of the transmission rod (209).

2. The fixture for cooling fan balance vibration test according to claim 1, characterized in that: A clamping mechanism (3) is provided on one side of the testing mechanism (2), wherein the clamping mechanism (3) comprises a buffer spring (301), and the buffer spring (301) is fixedly connected to the workbench (1).

3. The fixture for cooling fan balance vibration test according to claim 2, characterized in that: A limiting telescopic rod (302) is fixedly mounted on the inner side of the buffer spring (301), and a placement plate (303) is fixedly mounted on the top ends of the limiting telescopic rod (302) and the buffer spring (301).

4. The fixture for cooling fan balance vibration test according to claim 3, characterized in that: The surface of the placement plate (303) is provided with mounting grooves (304) on all sides, and a screw rod (305) is movably installed inside the mounting groove (304).

5. The fixture for cooling fan balance vibration test according to claim 4, characterized in that: A torsion plate (306) is fixedly mounted on the outer side of the screw rod (305), and a rotation rod (307) is fixedly mounted on the surface of the torsion plate (306).

6. The fixture for cooling fan balance vibration test according to claim 4, characterized in that: A moving block (308) is threadedly mounted on the surface of the screw rod (305), and a clamping plate (309) is fixedly mounted on the top of the moving block (308).

7. The fixture for cooling fan balance vibration test according to claim 6, characterized in that: A fixing frame (4) is movably mounted on the inner side of the clamping plate (309), and a fan body (5) is movably mounted on the inner side of the fixing frame (4).

8. The fixture for cooling fan balance vibration test according to claim 1, characterized in that: A conveyor line (6) is fixedly mounted on the outer side of the sleeve rod (208), and the other end of the conveyor line (6) is fixedly connected to a main control mechanism (7).

9. The fixture for cooling fan balance vibration test according to claim 8, characterized in that: The main control mechanism (7) comprises a control box (701), and the control box (701) is fixedly connected to the workbench (1).

10. The fixture for cooling fan balance vibration test according to claim 9, characterized in that: A display screen (702) is provided on the surface of the control box (701), and an operating button (703) is fixedly mounted on the bottom of the display screen (702).

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