A device for measuring the seismic performance of electronic products

Abstract

The present invention discloses a device for testing the anti-seismic performance of electronic products, which relates to the technical field of electronic product testing. The device comprises a base frame, a support plate hinged on the base frame, a longitudinal guide rod vertically fixed on the support plate, a top plate horizontally fixed on the top end of the longitudinal guide rod, a longitudinal adjustment mechanism vertically provided on the top plate and connected to the placement box for transmission, and a transverse adjustment mechanism horizontally provided on the longitudinal guide rod and connected to the rack plate for transmission; the present invention drives the rack plate to reciprocate transversely through the reciprocating mechanism provided, thereby realizing back and forth abutment transmission between the lower protrusion and the upper protrusion, realizing the up and down vibration effect of the placement box, and realizing the anti-seismic testing of the electronic product, and the transverse adjustment mechanism can adjust the transverse movement speed of the rack plate, thereby realizing the adjustment of the vibration frequency of the electronic product, and the longitudinal adjustment mechanism can adjust the acting force between the lower protrusion and the lower protrusion, thereby realizing the adjustment of the vibration force of the electronic product.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic product detection, in particular to a device for detecting the anti-seismic performance of an electronic product. Background Art

[0002] Electronic products are related products that use electricity as the basis for their work, mainly including: watches, smart phones, telephones, televisions, DVD players, VCRs, camcorders, radios, tape recorders, combination speakers, laser turntables, computers, game consoles, mobile communication products, etc. Early products were mainly based on vacuum tubes as components, hence the name electronic products. Before electronic products leave the factory, their seismic resistance needs to be tested.

[0003] The patent application publication number CN109443677A discloses an electronic product seismic performance testing device, including a base, a rotating shaft fixedly connected to a first connecting rod, the first connecting rod rotatably connected to a second connecting rod, the second connecting rod rotatably connected to a slider, the slider is slidably connected in a slide groove, a third spring is provided on both sides of the slider, the top of the slider is fixedly connected to a support rod, the top of the support rod is fixedly connected to a U-shaped plate, and the top of the U-shaped plate is fixedly connected to a testing box; although the device can perform seismic performance testing on electronic products, it cannot adjust the vibration intensity. The vibration environment is too single, which is not conducive to sufficient testing of the seismic resistance of electronic products. For this reason, an electronic product seismic performance testing device is now provided to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for measuring the anti-seismic performance of electronic products to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for measuring the seismic performance of electronic products includes a base frame, a support plate hinged on the base frame, a longitudinal guide rod vertically fixed on the support plate, a top plate horizontally fixed on the top of the longitudinal guide rod, a placement box above the base frame, a rack plate driven by a reciprocating mechanism below the placement box, a plurality of lower protrusions and upper protrusions fixed on opposite sides of the rack plate and the placement box, a longitudinal adjustment mechanism vertically provided on the top plate, and a transverse adjustment mechanism horizontally provided on the longitudinal guide rod, which is transmission-connected to the rack plate.

[0007] As an improved solution of the present invention: the reciprocating mechanism includes an incomplete gear meshing with the rack plate, the rack plate is elastically connected to the longitudinal guide rod through a transverse adjustment mechanism, and the placement box is elastically connected to the top plate through a longitudinal adjustment mechanism.

[0008] As an improved solution of the present invention: the longitudinal adjustment mechanism and the transverse adjustment mechanism have the same structure and both include a limiting sleeve, a slider I and a slider II are slidingly provided in the limiting sleeve, an extension rod extending to the outside of the limiting sleeve is fixed on the slider I, a stud abutting against the slider II is threadedly connected on the limiting sleeve, a handwheel is fixed on the stud, and a reset spring is fixed between the slider I and the slider II.

[0009] As an improved solution of the present invention: the extension rod on the transverse adjustment mechanism is fixedly connected to the rack plate, and the extension rod on the longitudinal adjustment mechanism is fixedly connected to the placement box.

[0010] As an improved solution of the present invention: a guide cylinder is vertically fixed on the placement box, a guide column fixed to the top plate is slidably installed in the guide cylinder, and a longitudinal sliding sleeve mounted on the longitudinal guide rod is fixed on the placement box.

[0011] As an improved solution of the present invention: a transverse sliding sleeve is horizontally fixed on the longitudinal guide rod, and a transverse guide rod fixed to the rack plate is slidably penetrated through the transverse sliding sleeve.

[0012] As an improved solution of the present invention: a servo motor is provided on the base frame, a threaded rod is coaxially fixed to the output shaft of the servo motor, a threaded sleeve is threadedly connected to the threaded rod, and an adjustment rod is hinged between the threaded sleeve and the support plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention drives the rack plate to move back and forth laterally through the reciprocating mechanism, realizes the back and forth abutment transmission between the lower protrusion and the upper protrusion, realizes the up and down vibration effect of the placement box, and realizes the shock resistance detection of the electronic product; the lateral adjustment mechanism can adjust the lateral movement speed of the rack plate to realize the adjustment of the vibration frequency of the electronic product; the longitudinal adjustment mechanism can adjust the force between the lower protrusion and the upper protrusion to realize the adjustment of the vibration force of the electronic product; at the same time, the support plate can be adjusted in angle to realize the shock resistance detection of the electronic product in different position states, and the shock resistance detection is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 Schematic diagram of the structure of the lateral adjustment mechanism of the present invention;

[0017] Figure 3 Schematic diagram of the three-dimensional structure of the connection between the rack plate and the incomplete gear.

[0018] In the figure: 1-base, 2-support plate, 3-lateral sliding sleeve, 4-lateral guide rod, 5-lower protrusion, 6-upper protrusion, 7-top plate, 8-placement box, 9-longitudinal adjustment mechanism, 10-guide column, 11-guide cylinder, 12-longitudinal guide rod, 13-longitudinal sliding sleeve, 14-lateral adjustment mechanism, 15-servo motor, 16-threaded sleeve, 17-adjusting rod, 18-threaded rod, 19-incomplete gear, 20-rack plate, 21-extension rod, 22-slider I, 23-limiting sleeve, 24-reset spring, 25-slider II, 26-stud, 27-handwheel. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods:

[0020] Example 1

[0021] See also Figure 1-3 A device for measuring the seismic performance of electronic products includes a base frame 1, a support plate 2 is hinged on the base frame 1, a longitudinal guide rod 12 is vertically fixed on the support plate 2, a top plate 7 is horizontally fixed to the top of the longitudinal guide rod 12, a placement box 8 is provided above the base frame 1, a rack plate 20 driven by a reciprocating mechanism is provided below the placement box 8, a plurality of lower protrusions 5 and upper protrusions 6 are respectively fixed on the opposite sides of the rack plate 20 and the placement box 8, a longitudinal adjustment mechanism 9 is vertically provided on the top plate 7 and is transmission-connected to the placement box 8, and a transverse adjustment mechanism 14 is horizontally provided on the longitudinal guide rod 12 and is transmission-connected to the rack plate 20.

[0022] When testing electronic products, the electronic products are placed inside the placement box 8, and the reciprocating mechanism drives the rack plate 20 to perform horizontal reciprocating motion. The rack plate 20 drives the lower protrusion 5 on it to rub against the upper protrusion 6 at the bottom of the placement box 8, so that the placement box 8 drives the electronic products inside to vibrate, thereby achieving the effect of shock resistance testing of electronic products.

[0023] Specifically, the reciprocating mechanism includes an incomplete gear 19 meshing with a rack plate 20. The rack plate 20 is elastically connected to the longitudinal guide rod 12 via a transverse adjustment mechanism 14. The storage box 8 is elastically connected to the top plate 7 via a longitudinal adjustment mechanism 9. The incomplete gear 19 can be driven to rotate by an external motor. The incomplete gear 19 intermittently meshes with the rack plate 20, and the transverse reciprocating motion achieved by the elastic action of the transverse adjustment mechanism 14 causes the storage box 8 to vibrate the electronic products.

[0024] The longitudinal adjustment mechanism 9 and the transverse adjustment mechanism 14 in this device have the same structure, both comprising a limiting sleeve 23, within which slide blocks I22 and II25 slide. Slider I22 is secured to an extension rod 21 extending beyond the limiting sleeve 23. A stud 26, threadedly connected to limiting sleeve 23 and abutting against slider II25, is secured to stud 26. A handwheel 27 is secured to stud 26. A return spring 24 is secured between sliders I22 and II25. The extension rod 21 on the transverse adjustment mechanism 14 is fixedly connected to the rack plate 20, while the extension rod 21 on the longitudinal adjustment mechanism 9 is fixedly connected to the storage box 8.

[0025] Through the above-mentioned setting, in the rotating lateral adjustment mechanism 14, when the rotating handwheel 27 can drive the stud 26 to rotate, the movable slider II25 is moved along the limiting sleeve 23 under the elastic action of the reset spring 24, thereby adjusting the compression degree of the reset spring 24, that is, adjusting the lateral movement speed of the rack plate 20 when it is separated from the incomplete gear 19, and then adjusting the vibration frequency of the electronic products in the placement box 8.

[0026] In the longitudinal adjustment mechanism 9, similarly, rotating the hand wheel 27 can adjust the clamping force between the upper protrusion 6 at the bottom of the placement box 8 and the lower protrusion 5 on the rack plate 20 in the initial state, that is, adjust the force applied to the electronic products in the placement box 8 when they vibrate up and down.

[0027] Through the adjustment of the transverse adjustment mechanism 14 and the longitudinal adjustment mechanism 9 , rapid adjustment of various vibration working conditions can be achieved, thereby achieving more comprehensive and sufficient anti-seismic testing of electronic products.

[0028] Example 2

[0029] Currently, most electronic product tests are vertical seismic tests. However, in actual use, many electronic products are subjected to vibrations in a non-vertical direction. In order to simulate the more complex vibration conditions of electronic products in reality, based on Example 1, a servo motor 15 is provided on the base frame 1, and a threaded rod 18 is coaxially fixed to the output shaft of the servo motor 15. A threaded sleeve 16 is threadedly connected to the threaded rod 18, and an adjustment rod 17 is hinged between the threaded sleeve 16 and the support plate 2.

[0030] When the servo motor 15 is started, the servo motor 15 can drive the threaded rod 18 to rotate, and the threaded rod 18 drives the threaded sleeve 16 on it to move and adjust horizontally. The adjustment rod 17 on the threaded sleeve 16 pushes the support plate 2 to achieve deflection and tilt, thereby achieving the adjustment of the placement angle of the placement box 8 and the electronic products inside. At this time, the rotation of the incomplete gear 19 can achieve vibration testing of the electronic products at different positions and angles.

[0031] In addition, a guide cylinder 11 is vertically fixed on the placement box 8, and a guide column 10 fixed to the top plate 7 is slidably installed in the guide cylinder 11. A longitudinal sliding sleeve 13 mounted on the longitudinal guide rod 12 is fixed on the placement box 8, and a transverse sliding sleeve 3 is horizontally fixed on the longitudinal guide rod 12. A transverse guide rod 4 fixed to the rack plate 20 is slidably passed through the transverse sliding sleeve 3.

[0032] During the seismic test of electronic products, the longitudinal sleeve 13 slides along the longitudinal guide rod 12, and the guide column 10 slides along the guide cylinder 11 to ensure that the placement box 8 moves along the vibration direction during the vibration test, so that the electronic product is fully stressed and the accuracy of the seismic test is improved. At the same time, the transverse guide rod 4 slides along the transverse sleeve 3 to guide the transverse movement of the rack plate 20, ensuring efficient transmission of the lower protrusion 5 and the upper protrusion 6 thereon, that is, the effect of converting the transverse movement of the rack plate 20 into longitudinal vibration of the placement box 8 is better.

[0033] To sum up, the present invention drives the rack plate 20 to move back and forth laterally through the reciprocating mechanism, realizes the back and forth abutment transmission between the lower protrusion 5 and the upper protrusion 6, realizes the up and down vibration effect of the placement box 8, and realizes the shock resistance detection of electronic products, and the lateral adjustment mechanism 14 can adjust the lateral movement speed of the rack plate 20 to realize the adjustment of the vibration frequency of the electronic product, and the longitudinal adjustment mechanism 9 can adjust the force between the lower protrusion 5 and the upper protrusion 5 to realize the adjustment of the vibration force of the electronic product. At the same time, the support plate 2 can be adjusted in angle to realize the shock resistance detection of electronic products in different position states, and the shock resistance detection is more comprehensive.

[0034] It should be noted that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. The above-mentioned embodiments only express the preferred implementation methods of this technical solution. The description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of this technical solution. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, several variations, improvements and substitutions can be made, which all fall within the scope of protection of this technical solution. The scope of protection of the patent of this technical solution shall be based on the attached claims.

Claims

1. A device for measuring the seismic performance of electronic products, comprising a base frame (1), a support plate (2) hingedly connected to the base frame (1), a longitudinal guide rod (12) vertically fixed to the support plate (2), a top plate (7) horizontally fixed to the top of the longitudinal guide rod (12), characterized in that: A placement box (8) is provided above the base frame (1), a rack plate (20) driven by a reciprocating mechanism is provided below the placement box (8), a plurality of lower protrusions (5) and upper protrusions (6) are fixed to opposite sides of the rack plate (20) and the placement box (8), a longitudinal adjustment mechanism (9) is vertically provided on the top plate (7) and is connected to the placement box (8), a transverse adjustment mechanism (14) is horizontally provided on the longitudinal guide rod (12) and is connected to the rack plate (20), and the reciprocating mechanism includes an incomplete gear meshing with the rack plate (20). (19), the rack plate (20) is elastically connected to the longitudinal guide rod (12) through the transverse adjustment mechanism (14), and the placement box (8) is elastically connected to the top plate (7) through the longitudinal adjustment mechanism (9). The longitudinal adjustment mechanism (9) and the transverse adjustment mechanism (14) have the same structure and both include a limit sleeve (23). A slider I (22) and a slider II (25) are provided in the limit sleeve (23). An extension rod (21) extending to the outside of the limit sleeve (23) is fixed on the slider I (22). The limit sleeve (23) is threaded with a A stud (26) is in contact with the slider II (25), a hand wheel (27) is fixed on the stud (26), and a return spring (24) is fixed between the slider I (22) and the slider II (25); a servo motor (15) is provided on the chassis (1), a threaded rod (18) is coaxially fixed to the output shaft of the servo motor (15), a threaded sleeve (16) is threadedly connected to the threaded rod (18), and an adjustment rod (17) is hinged between the threaded sleeve (16) and the support plate (2); an extension rod (21) on the lateral adjustment mechanism (14) is connected to the The rack plate (20) is fixedly connected, and the extension rod (21) on the longitudinal adjustment mechanism (9) is fixedly connected to the placement box (8); a guide cylinder (11) is vertically fixed on the placement box (8), and a guide column (10) fixed to the top plate (7) is slidably installed in the guide cylinder (11); a longitudinal sliding sleeve (13) sleeved on the longitudinal guide rod (12) is fixed on the placement box (8); a transverse sliding sleeve (3) is horizontally fixed on the longitudinal guide rod (12), and a transverse guide rod (4) fixed to the rack plate (20) is slidably penetrated on the transverse sliding sleeve (3).

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