WO2017215120A1

WO2017215120A1 - Drop test instrument

Info

Publication number: WO2017215120A1
Application number: PCT/CN2016/096699
Authority: WO
Inventors: 昝清龙
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-06-12
Filing date: 2016-08-25
Publication date: 2017-12-21
Also published as: CN205808661U

Abstract

Disclosed is a drop test instrument, comprising: an electrical control box (1), which comprises a gas supply line and an electric control circuit connected to each other, wherein the upper surface of the electrical control box (1) is a test platform, and the electric control circuit can control the opening and closing of the gas supply line; a lifting mechanism (2), which is mounted on the electrical control box (1) and connected to the electric control circuit or the gas supply line, wherein the electrical control box (1) can control the lifting mechanism (2) to perform a lifting operation; and an adsorption device (3), which is arranged above the electrical control box (1), mounted on the lifting mechanism (2) and connected to the gas supply line, wherein the lifting mechanism (2) drives the adsorption device (3) to move up and down, under the control of the electric control circuit, the gas supply line can control the adsorption device (3) to suck up an object at an adsorption position and release same at a test position.

Description

Drop test instrument

Technical field

The present application relates to, but is not limited to, the field of communication device technology, and more particularly to a drop test instrument.

Background technique

The current cost competition of mobile phone terminals is fierce, and the quality requirements of the customer's head are getting higher and higher. In production, the drop test of the machine head on the line becomes a necessary position for each project. The drop test can be used for the assembly of the virtual welding and the poor fastening of the connector. Badly enforced effective constraints. On the one hand, the drop test prevents the bad hidden joints from flowing into the hands of the customers. On the other hand, the defective products are laid down in advance, the defective products are found in the back end of the production, and the dismantling and repairing is carried out, resulting in serious waste of labor costs and material costs, and effectively improved. Product quality while reducing maintenance costs.

There are two types of drop platforms currently used in the industry. One is a manual drop box. The drop box is assembled with transparent acrylic or ESD bakelite. The drop height is fixed. The hand is taken at the top of the drop box and the hand is dropped. The other is the belt type drop line. Placed on the transport belt, the machine head gradually rises with the belt line, and after transporting to the end of the belt line, the nose naturally falls.

The related art has the following problems:

1. Drop the box to drop, the hand is taken by the hand, and the height of the handpiece is required to have a certain deviation, and the consistency of each head state cannot be guaranteed when the hand is dropped.

2, the line drop method, the machine head transport with the assembly line, gradually to the end of the assembly line, falling, the state of the nose can not be guaranteed, it is easy to occur the phenomenon of rollover, skew, etc., the state of the fall is disordered, on the other hand, some of the heads need Two drops, the assembly line fell, the nose fell and the manual returned the machine head back to the assembly line to re-permit two drops, the operation time is low, the number of falls is complicated, and it is easy to cause some noses to fall.

Summary of the invention

The following is an overview of the topics detailed in this document. This summary is not intended to limit the claims The scope of protection.

The embodiment of the invention provides a drop test instrument, which can ensure the nose drop state, eliminate the drop height error, control the number of drops, and realize multiple automatic drops.

Embodiments of the present invention provide a drop test apparatus, including: an electrical control box including a connected air supply line and an electronic control line, the upper surface of the electrical control box is a test platform, and the electronic control line can control the The gas supply line is opened and closed; a lifting mechanism is mounted on the electrical control box and connected to the electronic control circuit and/or the gas supply line, and the electric control box can control the lifting mechanism to perform And a lifting device; and an adsorption device mounted on the lifting mechanism and connected to the gas supply line, wherein the lifting mechanism drives the adsorption device to move, and the gas supply line can be controlled in the electronic control circuit The adsorption device is controlled to adsorb an object at the adsorption position and release the object at the test position.

Optionally, the lifting mechanism is a motor rack and pinion transmission structure or a motor screw nut transmission structure; the lifting mechanism is electrically connected to the electronic control circuit, and the electronic control circuit further controls the lifting mechanism to perform lifting operation .

Optionally, the lifting mechanism includes a cylinder; the cylinder is also connected to the air supply line, and the air supply line further controls the lifting mechanism to perform a lifting operation under the control of the electronic control line.

Optionally, the gas supply line includes: a quick connect plug connected to the air supply source; the air pipe has one end connected to the quick connect plug, and the other end connected to the first electromagnetic control valve and the second electromagnetic control valve respectively through the three-way; a first electromagnetic control valve, which is further connected to the vacuum generator and the adsorption device; the second electromagnetic control valve is further connected to the cylinder; the three-way; and the vacuum generator; wherein the first An electromagnetic control valve and the second electromagnetic control valve are also connected to the electronic control circuit, the electronic control circuit is arranged to control the first electromagnetic control valve reversing and the second electromagnetic control valve reversing .

Optionally, the gas supply line further comprises: a manual switch located between the tee and the quick connect plug and mounted on the air pipe.

Optionally, the lifting mechanism further includes: a guide rail, wherein the electric control box is correspondingly provided with a rail slot, the rail is correspondingly installed in the rail slot, and the adsorption device is movably fixed on the rail And a moving plate between the two guide rails and connecting the two rails together, an upper end of the cylinder is connected to the moving plate, and a lower end is fixed on the electric control box, the gas The cylinder can move the moving plate assembled together, the guide rail and the adsorption device to move together.

Optionally, the lifting mechanism further includes: two position sensors connected to the electronic control circuit, are mounted on the electrical control box, and respectively corresponding to the adsorption position and the test position setting, where the cylinder is set There is a signal source for use with the position sensor.

Optionally, the drop test apparatus further includes: a scale fixed to the electrical control box and disposed corresponding to the rail, the adsorption device adjusting a position on the rail according to the scale.

Optionally, the adsorption device comprises: a mounting plate; a suction cup connected to the gas supply line, fixed on a lower surface of the mounting plate; and a detecting sensor connected to the electronic control circuit, fixed at The mounting plate and corresponding to the suction cup are disposed, and the detecting sensor is configured to detect whether an object is placed at the adsorption position.

Optionally, a front switch and a power switch connected to the electronic control circuit are disposed on a front surface of the electrical control box, and a rear surface of the electrical control box is disposed on the rear surface of the electrical control box. A power interface and a power indicator, and a gas pipe interface connected to the gas supply line.

Compared with the prior art, the drop test instrument provided by the embodiment of the invention can ensure the nose drop state, eliminate the drop height error, control the number of drops, and achieve multiple automatic drops.

Other features and advantages of the invention will be set forth in the description which follows, The objectives and other advantages of the invention may be realized and obtained by means of the structure particularly pointed in the appended claims.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a schematic structural view of a drop test apparatus according to an embodiment of the present invention;

2 is a schematic structural view of another drop angle of the drop test apparatus shown in FIG. 1;

3 is a schematic structural view of a gas supply line in the drop test apparatus shown in FIG. 1.

Wherein, the correspondence between the reference numerals and the component names in FIGS. 1 to 3 is:

1 electrical control box, 11 vertical board, 12 test area, 13 start switch, 14 power switch, 15 power interface, 16 power indicator, 17 air pipe interface, 2 lifting mechanism, 21 cylinder, 22 guide Rail, 23 moving plate, 24 position sensor, 3 adsorption device, 31 mounting plate, 32 suction cup, 33 detection sensor, 34 fixed block, 41 quick connect plug, 42 three pass, 43 first electromagnetic control valve, 44 second electromagnetic control Valve, 45 vacuum generator, 46 manual switch, 5 ruler, 6 feet, 7 wall panels.

Embodiments of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention, but the invention may be practiced otherwise than as described herein. The limitations of the example.

The drop test apparatus according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

The drop test apparatus provided by the embodiment of the present invention, as shown in FIG. 1 and FIG. 2, includes: an electric control box 1 including a connected gas supply line and an electric control line, and the upper surface of the electric control box 1 is a test platform, and the electric The control circuit can control the opening and closing of the gas supply line; the lifting mechanism 2 is installed on the electric control box 1 and connected with the electric control line and/or the gas supply line, and the electric control box 1 can control the lifting mechanism 2 to perform the lifting movement; And the adsorption device 3 located above the electrical control box 1 is mounted on the lifting mechanism 2 and connected to the gas supply line, and the lifting mechanism 2 drives the adsorption device 3 to move up and down, and the gas supply line can be controlled under the control of the electronic control line. The device 3 adsorbs the object at the adsorption site and releases the object at the test position.

The drop test instrument provided by the embodiment of the invention can ensure the nose drop state, eliminate the drop height error, control the number of drops, and realize multiple automatic drops.

In an embodiment of the present invention (not shown in the scheme), optionally, the lifting mechanism 2 is a motor rack and pinion transmission structure or a motor screw nut transmission structure, and the lifting mechanism 2 is connected to the electronic control circuit. The electric control line controls the lifting mechanism 2 to perform the lifting operation (the gas supply line controls the adsorption device 3 to adsorb the object at the adsorption position and release the object at the test position under the control of the electronic control line).

In another embodiment of the present invention, optionally, the lifting mechanism 2 includes a cylinder 21; the cylinder 21 is electrically connected to the air supply line, and the air supply line controls the lifting mechanism 2 to perform lifting operation under the control of the electronic control line (air supply) The line also controls the adsorption device 3 at the adsorption position under the control of the electronic control line. Body, release the object at the test position).

Optionally, the lifting mechanism 2 further includes: two rails 22 arranged in a longitudinal direction, longitudinally disposed, and two rail grooves are correspondingly disposed on the rear surface of the electrical control box 1, and the two rails 22 are correspondingly installed in the two rail slots. And a moving plate 23 between the two guide rails 22 and connecting the upper ends of the two guide rails 22, the upper end of the cylinder 21 is connected to the moving plate 23, and the lower end is fixed on the rear surface of the electric control box 1; wherein, the adsorption device 3 There are two, and two adsorption devices 3 are movably fixed on the two guide rails 22 one by one.

Certainly, the adsorption device 3, the guide rail 22, and the guide rail slot may also be provided with one, three, four, etc., and the object of the present application may also be achieved. The purpose of the application is not deviated from the design idea of the present invention, and will not be described herein. It is within the scope of protection of this application.

Optionally, as shown in FIG. 1 , the drop test apparatus further includes: a scale 5, and the left edge, the right edge, the rear edge, and the front and rear center lines of the upper surface of the electrical control box 1 are provided with connected vertical plates 11 , The vertical plates 11 enclose two left and right test areas 12 on the upper surface of the electrical control box 1, and the scale 5 is erected on the front surface of the vertical plate 11 at the rear edge, and the adsorption device 3 is adjusted on the guide rail 22 according to the scale 5. Position (ie: determine the drop height).

Optionally, as shown in FIG. 2, the lifting mechanism 2 further includes: two position sensors 24 connected to the electronic control circuit, mounted on the rear surface of the electric control box 1, and corresponding to the adsorption position and the test position respectively. A signal transmission source is disposed on the cylinder 21.

Optionally, the cylinder 21 is provided with a signal transmission source for use with the two position sensors 24, and the two position sensors 24 control the cylinder stop and reverse movement by sensing the position of the signal transmission source; When the upward movement is to reach the test position, the signal emission source reaches the position of the position sensor 24 located above, and the position sensor 24 located above can detect the signal emitted by the signal source, control the cylinder to stop, and the adsorption device releases the object for dropping. Then, the cylinder moves back to the adsorption position. Alternatively, the signal source reaches the position of the position sensor 24 located below, and the position sensor 24 located below can detect the signal emitted by the signal source and control the cylinder to stop. The adsorption device adsorbs the object and moves in the opposite direction.

The two position sensors 24 are magnetic sensors, and the signal source is a magnetic member such as a magnetic ring, a magnetic block or the like.

That is, when the lifting mechanism 2 drives the adsorption device 3 to move down to the adsorption position (the magnetic field located below) The inductor senses the magnetic member), the gas supply line controls the adsorption device 3 to adsorb the head, and then the lifting mechanism 2 drives the adsorption device 3 to move up to the test position (the magnetic sensor at the upper side senses the magnetic member), and the gas supply line is controlled again. The adsorption device is placed on the head to allow the head to fall freely for testing; this is repeated.

Optionally, as shown in FIG. 1 and FIG. 2, the adsorption device 3 comprises: a mounting plate 31; a suction cup 32 connected to the gas supply line, fixed on the lower surface of the mounting plate 31; and connected to the electronic control circuit The detecting sensor 33 is located on the rear side of the suction cup 32 and is fixed to the lower surface of the mounting plate 31.

Wherein, the detecting sensor 33 is optionally fixed to the mounting board 31 by the fixing block 34; alternatively, the detecting sensor 33 is a photoelectric switch.

The adsorption device 3 moves downward to the adsorption position, and the detection sensor 33 detects whether there is an object at the suction cup 32 in front of it, and if so, the supply line controls the suction cup to adsorb the object (the head), and if not, the adsorption operation is not performed; the adsorption device 3 When moving up to the test position, the detecting sensor 33 detects whether the suction cup in front of it sucks an object, and if so, the air supply line controls the suction cup to release the object, and if not, the release operation is not performed.

Optionally, as shown in FIG. 3, the air supply line includes: a quick connect plug 41 connected to the air supply source; the air pipe has one end connected to the quick connect plug 41, and the other end connected to the first electromagnetic control valve 43 and the third through the three-way 42 respectively a second electromagnetic control valve 44; the first electromagnetic control valve 43, is also connected to the vacuum generator 45 and the adsorption device 3 (also connected by a three-way); the second electromagnetic control valve 44, also connected to the cylinder 21; tee 42; The vacuum generator 45; wherein the first electromagnetic control valve 43 and the second electromagnetic control valve 44 are both connected to the electronic control circuit, and the electronic control circuit can control the first electromagnetic control valve 43 and the second electromagnetic control valve 44 to perform commutation.

Optionally, the gas supply line further comprises: a manual switch 46 located between the tee 42 and the quick connect plug 41 and mounted on the air pipe, configured to control the on and off of the entire gas supply line, and can be repaired or replaced first The manual switch is closed when the solenoid control valve 43 and/or the second solenoid control valve 44 are closed.

Optionally, as shown in FIG. 1 and FIG. 2, the front surface of the electrical control box 1 is provided with a start switch 13 and a power switch 14 connected to the electronic control line, and the rear surface of the electric control box 1 is provided with electricity. The power supply port 15 and the power indicator lamp 16 connected to the control line, and the air pipe port 17 connected to the air supply line are provided (the quick connect plug 41 is mounted at the air pipe port 17).

Optionally, the drop test apparatus of the above embodiment is a one-to-two method (of course, it can also be designed as a drag-and-drop method, etc., and will not be described herein, but should fall within the protection scope of the present application) to perform a drop test. Adjusting the height of the mounting plate 31 according to the scale 5, and ensuring that the heights of the two mounting plates 31 are all required to set the drop height; manually pressing the start switch 13, triggering the cylinder 21 to move downward through the guide rail 22 to drive the suction cup 32 to adsorb the head (placed in At the test area, during the driving process of the cylinder 21, the magnetic ring inside the cylinder and the suction cup 32 move down synchronously. When the magnetic ring senses the position sensor 24 located at the lower portion, the cylinder stops moving, and the suction cup 32 falls to the top of the head. At this time, the position sensor 24 located at the lower portion senses the magnetic ring and triggers the detecting sensor 33 on the mounting plate to recognize whether the head is present. If there is, the detecting sensor 33 triggers the first electromagnetic reversing valve to make the suction cup 32 under the action of the vacuum generator. Inhaling, the head is smoothly adsorbed on the suction cup 32 (otherwise, the cylinder is returned to the initial position), and then the cylinder 21 is moved up by the guide rail 22 to raise the suction cup 32 to the drop height. During the ascent, the magnetic ring inside the cylinder and The suction cup 32 moves up together. When the magnetic ring rises to the position of the position sensor 24 at the upper portion, the position sensor 24 located at the upper portion senses the magnetic ring, and the cylinder stops. Move, and trigger the first electromagnetic reversing valve to make the suction cup 32 cut off, the nose naturally falls, fall behind, the electronic control circuit (such as PLC) controls the cylinder delay for a few seconds (ie: the time when the nose drops to the falling platform) drives the cylinder The second drop test is performed; the setting of the number of drops is controlled by the electronic control line (PLC in the middle), and the platform stops working after the number of repeated drops is completed.

Optionally, as shown in FIG. 1 , the bottom of the electrical control box 1 has legs 6 , and the wire body of the electrical control box 1 is assembled by six wall plates 7 , and the assembly manner is preferably a screw connection.

In summary, the drop test instrument provided by the embodiment of the invention can ensure the nose drop state, eliminate the drop height error, control the number of drops, and achieve multiple automatic drops.

In the description of the embodiments of the present invention, the terms "installation", "connected", "connected", "fixed", etc., should be understood broadly. For example, "connection" may be a fixed connection or a detachable connection, or Connected in one piece; they can be connected directly or indirectly through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood on a case-by-case basis.

In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in the present invention. In at least one embodiment or example of an embodiment. In this manual, on the top The illustrative representations of the terms are not necessarily referring to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been described above, the described embodiments are merely for the purpose of understanding the invention and are not intended to limit the invention. Any modification and variation in the form and details of the embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. The scope defined by the appended claims shall prevail.

Industrial applicability

The drop test instrument of the above technical solution can ensure the nose drop state, eliminate the drop height error, control the number of drops, and achieve multiple automatic drops.

Claims

A drop test instrument, including:

An electrical control box (1) including a connected air supply line and an electronic control line, wherein an upper surface of the electrical control box (1) is a test platform, and the electronic control line can control the air supply line to open and close;

a lifting mechanism (2) mounted on the electrical control box (1) and connected to the electronic control line and/or the gas supply line, wherein the electrical control box (1) can control the lifting mechanism (2) performing a lifting action; and

The adsorption device (3) is mounted on the lifting mechanism (2) and connected to the gas supply line, and the lifting mechanism (2) drives the adsorption device (3) to move, and the gas supply line can be The adsorption device (3) is controlled under the control of the electronic control line to adsorb an object at the adsorption position and release the object at the test position.
The drop test apparatus according to claim 1, wherein said adsorption means (3) comprises:

Mounting plate (31);

a suction cup (32) connected to the gas supply line, fixed to the mounting plate (31); and

a detecting sensor (33) connected to the electronic control line is fixed on the mounting plate (31) and disposed corresponding to the suction cup (32), and the detecting sensor (33) is arranged to detect whether or not the suction position is There are objects placed.
The drop test apparatus according to claim 1, wherein the lifting mechanism (2) is a motor rack and pinion transmission structure or a motor screw nut transmission structure; and the lifting mechanism (2) is electrically connected to the electronic control line The electronic control circuit also controls the lifting mechanism (2) to perform a lifting operation.
The drop test apparatus according to claim 1, wherein said elevating mechanism (2) includes a cylinder (21); said cylinder (21) is also connected to said air supply line, said air supply line being said The lifting mechanism (2) is also controlled to perform the lifting operation under the control of the electronic control line.
The drop test apparatus according to claim 4, wherein said gas supply line comprises:

a quick connect plug (41) connected to the air supply source;

a gas pipe, one end of which is connected to the quick connect plug (41), and the other end is connected to the first electromagnetic control valve (43) and the second electromagnetic control valve (44) through a three-way (42);

The first electromagnetic control valve (43) is also connected to the vacuum generator (45) and the adsorption device (3);

The second electromagnetic control valve (44) is also connected to the cylinder (21);

The tee (42); and

The vacuum generator (45);

Wherein the first electromagnetic control valve (43) and the second electromagnetic control valve (44) are also electrically connected to the electronic control line, and the electronic control circuit is arranged to control the first electromagnetic control valve ( 43) Reversing and commutating the second electromagnetic control valve (44).
The drop test apparatus according to claim 5, wherein the gas supply line further comprises:

A manual switch (46) is located between the tee (42) and the quick connect plug (41) and is mounted on the air tube.
The drop test apparatus according to claim 4, wherein the lifting mechanism (2) further comprises:

Two position sensors (24) connected to the electronic control line are mounted on the electric control box (1) and respectively corresponding to the adsorption position and the test position, and the cylinder is provided with the position The sensor (24) is used in conjunction with the signal source.
The drop test apparatus according to claim 4, wherein the lift mechanism (2) further comprises:

a guide rail (22), the electric control box (1) is correspondingly provided with a rail slot, the rail (22) is correspondingly installed in the rail slot, and the adsorption device (3) is movably fixed on the rail (22) on; and

a moving plate (23) is located between the two guide rails (22) and connects the two guide rails (22) together, the upper end of the cylinder (21) is connected with the moving plate (23), and the lower end is fixed On the electrical control box (1), the cylinder can move the moving plate (23), the rail (22) and the adsorption device that are assembled together to move together.
The drop test apparatus of claim 8 further comprising:

A scale (5) is fixed to the electrical control box and disposed corresponding to the guide rail (22), and the adsorption device (3) adjusts the position on the guide rail (22) according to the scale (5).
The drop test apparatus according to any one of claims 1 to 9, wherein a front surface of the electric control box (1) is provided with a start switch (13) and a power switch connected to the electronic control line (14) a rear surface of the electrical control box (1) is provided with a power interface (15) and a power indicator light (16) connected to the electronic control line, and is provided with the gas supply line Connected air pipe connection (17).