CN218823092U

CN218823092U - Drop test fixture

Info

Publication number: CN218823092U
Application number: CN202223339208.5U
Authority: CN
Inventors: 杨均; 何从雄
Original assignee: Sichuan Zhanhai Technology Co ltd
Current assignee: Sichuan Zhanhai Technology Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-04-07
Anticipated expiration: 2032-12-14

Abstract

The utility model provides a drop test tool, include steel ball issue mechanism and be used for placing the box of the piece that awaits measuring, steel ball issue mechanism includes Z axle motion module and Y axle motion module, Z axle motion module is equipped with the installing support, Y axle motion module is fixed in the installing support, its characterized in that: the Y-axis movement module can do horizontal reciprocating motion relative to the mounting bracket, the Y-axis movement module comprises a rotary rod connected with the mounting bracket and a sliding block capable of sliding on the rotary rod, an infrared positioner is arranged under the sliding block, and an electromagnet capable of adsorbing a steel ball is arranged under the infrared positioner. The utility model relates to a drop test tool utilizes simple structure to realize the diversified regulation of test, and is with low costs, the simple operation.

Description

Drop test fixture

Technical Field

The utility model relates to a communication test equipment's technical field, in particular to drop test tool.

Background

In recent years, with the development of communication technology and the advancement of technology

80% of electronic products are damaged mostly by falling collision, research personnel usually spend a large amount of time and cost, relevant quality tests are carried out on the products, the most common structural test is a falling and impact test, and whether the hardness, rigidity, flexibility and the like of the terminal screen can meet the requirements is verified.

Currently, the following methods are generally adopted to test a terminal screen: as shown in fig. 1, firstly, the terminal screen is horizontally placed and fixed on a protection box 1', an electromagnet 3' is installed on a vertical rod 2', the electromagnet 3' is electrified, a steel ball is adsorbed on the electromagnet 3', the distance between the electromagnet 3' and a preset distance is adjusted, then the electromagnet 3 'is powered off, the steel ball 4' freely falls to hit the terminal screen, and accordingly, the terminal screen is subjected to voltage withstanding test.

However, this kind of test mode, vertical height needs manual regulation at first, can be because operation etc. produce the error, and secondly, this kind of mode can only be adjusted in vertical direction when the test, if other positions that need test terminal screen, then need adjust the terminal screen, still need set up specific adjustment standard so in terminal screen department. Although the prior art also designs a scheme capable of adjusting the angle in other directions, some methods need to be realized by a plurality of motors, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a drop test fixture, utilize simple structure to realize the diversified regulation of test, with low costs, the simple operation.

For realizing the above-mentioned purpose, the utility model provides a drop test fixture, include steel ball issue mechanism and be used for placing the box of the piece that awaits measuring, steel ball issue mechanism includes Z axle motion module and Y axle motion module, Z axle motion module is equipped with the installing support, Y axle motion module is fixed in the installing support, Y axle motion module and installing support connection just can be horizontal rotation motion, Y axle motion module includes the rotary rod of being connected with the installing support and can be on the rotary rod gliding slider, be equipped with infrared locator under the slider, be equipped with the electro-magnet that can adsorb the steel ball under the infrared locator.

Adopt two motion modules of Y, Z to realize the regulation of two directions among this technical scheme, and Y motion module and Z motion module swivelling joint, relative Z motion module realizes the regulation of X axle direction, and the steel ball sets up in Y motion module, realizes steel ball Y, Z axle and horizontal plane direction's free fall drop test, can all-roundly test the terminal screen, and simple structure, convenient operation.

Preferably, the mounting bracket includes an upper fixing plate and a lower fixing plate, the rotating rod is inserted between the upper fixing plate and the lower fixing plate, and a first fastening member connects the rotating rod and the lower fixing plate.

For the horizontal rotation that satisfies Y motion module, directly set up the swivelling joint of rotary rod and installing support among this technical scheme, its simple structure, connect stably, can adjust through manual.

Preferably, the rotating rod is provided with slide rails along two sides of the Y-axis direction, the sliding blocks are located in the slide rails on the two sides and move back and forth along the direction of the slide rails, and the second fastening piece is connected with the sliding blocks and the rotating rod.

According to the technical scheme, the sliding block slides along the sliding rail, the direction cannot be deviated during sliding, the adjustment is accurate, and the testing accuracy is improved.

Preferably, the steel ball delivery mechanism further comprises a sliding support connected with the sliding block, a positioning column used for fixing the infrared positioner and a fixing support used for fixing the electromagnet are arranged on the sliding support, hole sites are formed in the positioning column, the fixing support and the electromagnet, the centers of the three hole sites are located on the same Z axis, the electromagnet is electrified to adsorb the steel ball to fix the steel ball in the hole site of the electromagnet, the electromagnet is powered off to release the steel ball to enable the steel ball to be separated from the hole site of the electromagnet, the steel ball is located in the same vertical direction, the height consistency between the infrared positioning and the free falling position of the steel ball is achieved, and the testing accuracy is improved.

Furthermore, the Z-axis movement module also comprises a driving mechanism for driving the Y-axis movement module to move along the Z-axis direction, the driving mechanism comprises a motor and a lead screw sliding rail module connected with the motor, the lead screw sliding rail module is arranged along the Z-axis direction, and the lead screw sliding rail module is connected with the Y-axis movement module and drives the Y-axis movement module to move along the Z-axis direction; the motor is used for driving the lead screw sliding rail module to realize effective movement in the Z-axis direction.

The utility model has the advantages that: the utility model discloses a steel ball can be at Y axle, Z axle and horizontal direction free rotation, can be to the all points that need the test of terminal screen, tests at vertical direction not co-altitude, and the test is comprehensive, aspect, accuracy height.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a drop test fixture in the prior art.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention.

Fig. 3 is a schematic diagram of the structure at a in fig. 2.

Fig. 4 is a front view of the embodiment of the present invention.

Fig. 5 is a right side view of an embodiment of the present invention.

In the figure: the device comprises a 1-box body, a 2-Z axis movement module, a 3-Y axis movement module, a 21-motor, a 22-lead screw sliding rail module, a 23-mounting bracket, a 24-rotating rod, a 25-sliding block, a 9-infrared positioner, a 4-steel ball, a 5-electromagnet, a 231-upper fixing plate, a 232-lower fixing plate, a 6-fastening piece I, a 241-sliding rail, a 7-fastening piece II, an 8-sliding bracket, an 81-sliding chute, a 811-positioning column and a 82-fixing bracket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The drop test fixture comprises a steel ball issuing mechanism and a box body 1 used for placing a to-be-tested piece, the to-be-tested piece can be a terminal screen, the terminal screen is fixed at the bottom of the box body 1, the steel ball issuing mechanism comprises a Z-axis movement module 2 and a Y-axis movement module 3, the Z-axis movement module 2 comprises a motor 21 and a lead screw sliding rail module 22 connected with the motor 21, the motor 21 is preferably a stepping motor, the function is good, the rotating speed is accurate, the stepping motor 21 drives the lead screw sliding rail module 22 to rotate, a mounting support 23 is in threaded connection with the lead screw sliding rail module 22, the Y-axis movement module 3 is horizontally and rotatably connected with the mounting support 23, the Y-axis movement module 3 comprises a rotating rod 24 connected with the mounting support 23, a sliding block 25 capable of sliding on the rotating rod 24, an infrared positioner 9 is arranged under the sliding block 25, and an electromagnet 5 capable of adsorbing the steel ball 4 is arranged under the infrared positioner 9.

Above do the utility model discloses an it is whole technical scheme, when utilizing this technical scheme to test, can realize 4 equidirectional and not free fall movements of co-altitude of steel ball as required, steel ball 4 drop test's position is comprehensive, and the measuring accuracy is high.

Specifically, mounting bracket 23 includes an upper fixed plate 231 and a lower fixed plate 232, and rotating rod 24 inserts between upper fixed plate 231 and the lower fixed plate 232, and fastener one 6 connects upper fixed plate 231, rotating rod 24 and lower fixed plate 232, and rotating rod 24 can carry out the horizontal direction motion relative to mounting bracket 23 like this, and more specifically, star-shaped handle can be chooseed for use to fastener one 6, makes things convenient for rotating rod 24's fixed, rotation and dismantlement.

More specifically, in order to realize the accuracy of the sliding direction of the slider 25, the sliding rails 241 are arranged on the two sides of the rotating rod 24 along the Y-axis direction, and the two corresponding sides of the slider 25 are clamped in the sliding rails 241, so that when the slider 25 is pushed, the slider 25 can move back and forth along the direction of the sliding rails 241, when the slider 25 slides to a preset position, the slider 25 and the rotating rod 24 are screwed and fixed by the second fastening member 7, and the second fastening member 7 is preferably a star-shaped handle, and is convenient to install, disassemble and fix.

The steel ball launching mechanism further comprises a sliding support 8 connected with the sliding block 25, the sliding support 8 is connected to the front side of the sliding block 25 and is provided with a sliding groove 81, a rotating rod 24 can penetrate through the sliding groove 81, a positioning column 811 is vertically arranged at the bottom end of the sliding groove 81, a first hole position is arranged in the positioning column 811, an infrared positioner 9 is installed in the first hole position, a fixing support 82 is vertically installed right below the sliding groove 81, the electromagnet 5 is connected with the lower side of the fixing support 82 through bolts, a second hole position is arranged on the fixing support 82 to facilitate positioning of the infrared positioner 9 on a terminal screen, the electromagnet 5 is provided with a third hole position, the first hole position, the second hole position and the third hole position are communicated and are located on the same vertical axis, the electromagnet 5 adsorbs the steel ball 4 after being powered on, the steel ball 4 is fixed in the third hole position of the electromagnet 5, the electromagnet 5 releases the steel ball 4 after being powered off, and enables the steel ball 4 to be separated from the third hole position of the electromagnet 5.

The utility model relates to a drop test tool is at work, at first through step motor 21's control, select suitable high back, and the position of manual regulation rotary rod 24 and slider 25 combines infrared locator 9 simultaneously, adjusts to predetermineeing the position, then to 5 circular telegrams of electro-magnet, and steel ball 4 adsorbs on electro-magnet 5, and release steel ball 4 after 5 outage of electro-magnet, steel ball 4 do the free fall motion, fall to the terminal screen, observe the condition that the terminal screen was shielded.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. The utility model provides a drop test fixture, includes steel ball issue mechanism and is used for placing the box of the piece that awaits measuring, steel ball issue mechanism includes Z axle motion module and Y axle motion module, Z axle motion module is equipped with the installing support, Y axle motion module is fixed in the installing support, its characterized in that: the Y-axis motion module is connected with the mounting bracket and can be horizontal rotation motion, the Y-axis motion module comprises a rotary rod connected with the mounting bracket and a sliding block capable of sliding on the rotary rod, an infrared positioner is arranged under the sliding block, and an electromagnet capable of adsorbing a steel ball is arranged under the infrared positioner.

2. The drop test fixture of claim 1, wherein: the mounting bracket comprises an upper fixing plate and a lower fixing plate, the rotary rod is inserted between the upper fixing plate and the lower fixing plate, and the first fastening piece is connected with the rotary rod and the lower fixing plate.

3. The drop test fixture of claim 1, wherein: the rotary rod is provided with slide rails along two sides of the Y-axis direction, the sliding blocks are located in the slide rails on two sides and move back and forth along the slide rail direction, and the second fastening piece is connected with the sliding blocks and the rotary rod.

4. The drop test fixture of claim 1, wherein: the steel ball delivery mechanism further comprises a sliding support connected with the sliding block, a positioning column used for fixing the infrared positioner and a fixing support used for fixing the electromagnet are arranged on the sliding support, hole sites are formed in the positioning column, the fixing support and the electromagnet, the centers of the three hole sites are located on the same Z axis, the electromagnet is adsorbed after being electrified, so that the steel ball is fixed in the hole sites of the electromagnet, and the electromagnet is released after being powered off, so that the steel ball is separated from the hole sites of the electromagnet.

5. The drop test fixture of any one of claims 1-4, wherein: z axle motion module is still including the actuating mechanism of drive Y axle motion module along the motion of Z axle direction, actuating mechanism includes the motor, the lead screw slide rail module of being connected with the motor, lead screw slide rail module sets up along Z axle direction, lead screw slide rail module is connected with Y axle motion module, drives Y axle motion module and moves along Z axle direction.