CN215180571U

CN215180571U - Fool-proof testing device

Info

Publication number: CN215180571U
Application number: CN202120869333.3U
Authority: CN
Inventors: 柏强社; 李善平; 陈国明
Original assignee: Junri Technology Shenzhen Co ltd
Current assignee: Junri Technology Shenzhen Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-12-14
Anticipated expiration: 2031-04-25

Abstract

The utility model relates to a test fixture technical field discloses a prevent slow-witted testing arrangement, including first fixing base, second fixing base and first cylinder, first fixing base and the adjacent setting of second fixing base, the second fixing base is connected to first cylinder for drive second fixing base is close to or keeps away from first fixing base, the one end that first fixing base is close to the second fixing base is equipped with two conduction test needles, the second fixing base is used for placing the article to be tested, when first cylinder drives second fixing base and is close to first fixing base, the article to be tested offsets with two conduction test needles and forms closed circuit; when the closed loop can be formed, a closed conduction system is formed between the fool-proof testing device and the object to be tested, and no short circuit occurs.

Description

Fool-proof testing device

Technical Field

The utility model relates to an electrical property functional test tool technical field, in particular to prevent slow-witted testing arrangement.

Background

After the electronic circuit element of the electronic device is manufactured, the related test of the electrical function is required to ensure the functional integrity of the electronic circuit element leaving the factory. The electrical function test is to test various electrical parameters of the electronic loop element, wherein the circuit conduction condition of the electronic loop element is detected by a test needle; in addition, a proximity probe structure is also commonly used as a connector, such as a Pogo Pin (a precision connector used in electronic products such as mobile phones, which is widely used in semiconductor devices for connection) for connecting various electronic circuit components. In the test pin or pin connector, the structure of the connector is designed in consideration of the state of the electrical path and the size of the resistor, and the test pin is taken as an example for explanation.

Generally, various electrical conditions of various electronic circuit elements such as a circuit board or a motherboard are detected by a test pin on a circuit testing device. During testing, the testing needle touches the object to be tested, so that the needle head of the testing needle moves due to stress and generates current which is transmitted to the testing machine through the testing needle, and the circuit conduction situation of the object to be tested is obtained.

However, in the prior art, the object to be tested can only use the standard component to periodically detect the effectiveness of the testing machine, and because the current generated by the testing needle is small, the testing machine often ignores the circuit condition of the testing needle in the testing process, so that if the testing needle is in poor contact with the object to be tested or the electrical parameter of the object to be tested is abnormal, which causes a short circuit, the testing machine is difficult to perceive, thereby misdeeming that the product to be tested is qualified, which causes mistesting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent slow-witted testing arrangement aims at solving the technical problem that the product that awaits measuring takes place the misdetection easily among the prior art.

The utility model provides a prevent slow-witted testing arrangement, including first fixing base, second fixing base and first cylinder, first fixing base with the second fixing base is adjacent to be set up, first cylinder is connected the second fixing base is used for driving the second fixing base is close to or keeps away from first fixing base, first fixing base is close to the one end of second fixing base is equipped with two conduction test needles, the second fixing base is used for placing the article that awaits measuring, works as first cylinder drives the second fixing base is close to during the first fixing base, the article that awaits measuring and two the conduction test needle offsets and forms closed circuit.

Preferably, the needle heads of the two conduction test needles are abutted against the same end part of the object to be tested.

Preferably, the testing device further comprises a second cylinder, a testing fixture is arranged on the second cylinder, the second cylinder is used for driving the testing fixture to be close to or far away from the first fixing seat, and when the object to be tested abuts against the two conduction testing needles to form a closed loop, the second cylinder drives the testing fixture to be close to the first fixing seat and is used for enabling the testing fixture to abut against the object to be tested.

Preferably, the second cylinder is arranged above the first fixing seat and drives the test fixture to move up and down, and the first cylinder is arranged at the bottom of the second fixing seat and drives the second fixing seat to move back and forth.

Preferably, the test device further comprises a test support, and the first fixing seat and the second cylinder are both fixed on the test support.

Preferably, the test fixture is provided with a resistance test needle, and when the second cylinder drives the test fixture to be close to the first fixing part, the resistance test needle is abutted against the surface of the object to be tested.

Preferably, the resistance test needles comprise a plurality of groups, each group of the resistance test needles comprises two resistance test needles, and the two resistance test needles are arranged adjacently.

Preferably, an isolation block is arranged at one end, close to the conduction test pin, of the second fixing seat, and the isolation block is used for isolating the two resistance test pins.

Preferably, the isolation block is in a triangular structure.

The utility model provides a prevent slow-witted testing arrangement, including first fixing base, second fixing base and first cylinder, first fixing base and the adjacent setting of second fixing base, the second fixing base is connected to first cylinder for drive second fixing base is close to or keeps away from first fixing base, the one end that first fixing base is close to the second fixing base is equipped with two conduction test needles, the second fixing base is used for placing the article that awaits measuring, when first cylinder drives second fixing base and is close to first fixing base, the article that awaits measuring supports with two conduction test needles and forms closed circuit; through set up two conduction test needles on first fixing base to make two conduction test needles support each other with the article that awaits measuring and hold, make two conduction test needles can form a confined return circuit with the article that awaits measuring like this, when it can form closed circuit, then explain prevent staying between testing arrangement and the article that awaits measuring and form the confined system that switches on, the condition of short circuit does not take place, at this moment, carry out subsequent electrical function test again, can avoid taking place the misdetection when carrying out the electrical function test, thereby guarantee the uniqueness and the accuracy of article testing result that awaits measuring.

Drawings

Fig. 1 is a schematic view of the overall structure of a fool-proof testing device according to an embodiment of the present invention;

fig. 2 is a schematic side sectional view of a fool-proof testing device according to an embodiment of the present invention;

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Symbolic description of the main elements:

1. a first fixed seat; 11. conducting a test needle; 2. a second fixed seat; 21. an isolation block; 31. a second cylinder; 311. testing the clamp; 312. a resistance test pin; 32. a first cylinder; 4. an object to be tested; 5. and (6) testing the bracket.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The term "fool-proof" is a term derived from Japanese Weiqi and general chess, and is applied to industrial management later, the term is originally intended to be preventive, Chinese is translated into fool-proof, and the fool-proof is a behavior constraint means for preventive correction, and by using a limiting method for avoiding errors, an operator can directly and correctly complete correct operation without paying attention and without experience and professional knowledge. In industrial design, in order to avoid the operation error of a user from causing machine or personal injury (including unconscious actions or subconscious misoperation or careless limb actions), preventive measures are taken against the possible situations, namely fool-proofing, for example, a common mobile phone SIM card has a corner defect, the special design is a fool-proofing notch, and if you insert the SIM card reversely, the SIM card cannot be inserted, so that the SIM card is prevented from being inserted reversely by misoperation of a new hand.

In this embodiment, the purpose of setting the fool-proof testing device is to prevent misdetection, as shown in fig. 1-2, the utility model provides a fool-proof testing device, which comprises a first fixing seat 1, a second fixing seat 2 and a first cylinder 32, wherein the first fixing seat 1 and the second fixing seat 2 are adjacently arranged, the first cylinder 32 is connected with the second fixing seat 2 and used for driving the second fixing seat 2 to approach or leave away from the first fixing seat 1, one end of the first fixing seat 1 close to the second fixing seat 2 is provided with two conduction testing needles 11, the second fixing seat 2 is used for placing an object to be tested 4, when the first cylinder 32 drives the second fixing seat 2 to approach the first fixing seat 1, the object to be tested 4 and the two conduction testing needles 11 are abutted to form a closed loop; in the prior art, usually, one testing needle is adopted to directly perform electrical function testing on an object 4 to be tested, so when a short circuit occurs due to poor contact between the testing needle and the object 4 to be tested, and the current is small, so that the whole testing device is difficult to be affected, and then the testing result of the testing device is displayed as "qualified", thereby causing a mistesting situation, in the present embodiment, two conducting testing needles 11 are arranged on the first fixing seat 1, and the two conducting testing needles 11 and the object 4 to be tested are mutually supported, so that the two conducting testing needles 11 and the object 4 to be tested can form a closed loop, when the closed loop can be formed, it is indicated that a closed conducting system has been formed between the foolproof testing device and the object 4 to be tested, and a short circuit situation does not occur, at this time, an electrical function testing is performed, so that a mistesting can be avoided during the electrical function testing, thereby ensuring the uniqueness and accuracy of the detection result of the object 4 to be detected.

In this embodiment, the needles of the two conduction test needles 11 are both in contact with the same end of the object 4 to be tested, for better illustration of this embodiment, the object 4 to be tested is tested by using a metal block, the two conduction test needles 11 are divided into an a conduction test needle and a B conduction test needle, the metal block is placed on the second fixing base 2, the second fixing base 2 is driven by the first cylinder 32 to move towards the first fixing base 1, because the a conduction test needle and the B conduction test needle are disposed at one end close to the second fixing base 2, when the metal block is close to the first fixing base 1, the a conduction test needle and the B conduction test needle will directly contact with the same end of the metal block, so that the current flows into the metal block from the a conduction test needle, then flows out from the metal block to the B conduction test needle, and flows into the a conduction test needle after flowing onto the B conduction test needle, thus, A, B conduction is conducted to form a closed conduction system between the test needle and the metal block.

In this embodiment, still include second cylinder 31, be equipped with test fixture 311 on the second cylinder 31, second cylinder 31 is used for driving test fixture 311 and is close to or keeps away from first fixing base 1, when the object 4 that awaits measuring offsets with two conduction test needles 11 and forms closed circuit, second cylinder 31 drives test fixture 311 and is close to first fixing base 1, be used for making test fixture 311 and object 4 that awaits measuring offset, specifically, after forming closed circuit through metal block and two conduction test needles 11, again with test fixture 311 and the anchor clamps that await measuring offset, need not to adjust the position of metal block like this, can directly carry out subsequent electrical property function test to the metal block, and is convenient and fast, and work efficiency is improved.

In this embodiment, the second cylinder 31 is disposed above the first fixing base 1 and drives the testing fixture 311 to move up and down, the first cylinder 32 is disposed at the bottom of the second fixing base 2 and drives the second fixing base 2 to move back and forth, specifically, after the metal block is disposed on the second fixing base 2, the first cylinder 32 drives the second fixing base 2 to move forward, so that the metal block contacts with the two conduction testing pins 11 and forms a conduction system, and then the second cylinder 31 drives the testing fixture 311 on the first fixing base 1 to move down, thereby realizing the automation of the electrical function detection of the metal block, without increasing manpower, and without affecting UPH, which is the unit hour productivity.

In this embodiment, still include test support 5, first fixing base 1 and second cylinder 31 are all fixed on test support 5, through setting up test support 5 to fix first fixing base 1 and second cylinder 31 on test support 5, can increase the stability of first fixing base 1 and second cylinder 31 like this, thereby prevent to take place the displacement in the electrical property function test process.

In this embodiment, the testing fixture 311 is provided with the resistance testing pin 312, when the second cylinder 31 drives the testing fixture 311 to approach the first fixing, the resistance testing pin 312 abuts against the surface of the object 4 to be tested, and the resistance value of the metal block and the resistance value of the insulation resistor can be detected by setting the resistance testing pin 312.

In this embodiment, in order to improve the efficiency of the test of metal block, usually, a plurality of metal blocks measure simultaneously, therefore, be provided with multiunit resistance test needle 312 on test fixture 311, each group includes 2 resistance test needles 312, two adjacent settings of resistance test needle 312 are used in same metal block, can make two resistance test needles 312 carry out resistance test to same metal block simultaneously like this, the resistance value of detection metal block that like this can be more accurate, reduce the error, it is more excellent, two conduction test needles 11 and two resistance test needles 312 act on same metal block, can test the resistance to pressure of metal block.

In this embodiment, an isolation block 21 is disposed at an end of the second fixing seat 2 close to the conduction test pin 11, the isolation block 21 is of a triangular structure, when the second cylinder 31 drives the test fixture 311 to move downward to make two adjacent resistance test pins 312 in a group abut against the surface of the metal block, the tip of the isolation block 21 abuts against the side surfaces of the two resistance test pins 312, so as to prevent the two resistance test pins 312 from directly contacting and causing short circuit, of course, the isolation block 21 may also be of a rectangular structure or the like, and no unique limitation is made here.

In this embodiment, the object 4 to be tested is not limited to a metal block, but may be other electronic components or PCB boards, etc. that need to detect an electrical function, and is not described herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, apparatus, article, or method. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, apparatus, article, or method that includes the element.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. The utility model provides a prevent slow-witted testing arrangement, its characterized in that, includes first fixing base, second fixing base and first cylinder, first fixing base with the second fixing base is adjacent to be set up, first cylinder is connected the second fixing base is used for driving the second fixing base is close to or keeps away from first fixing base, first fixing base is close to the one end of second fixing base is equipped with two and switches on the test needle, the second fixing base is used for placing the object that awaits measuring, works as first cylinder drives the second fixing base is close to when first fixing base, the object that awaits measuring and two it forms closed circuit to switch on the test needle counterbalance.

2. The foolproof testing device of claim 1, wherein the needles of both of the conduction testing needles abut against the same end of the object to be tested.

3. The foolproof testing device of claim 1, further comprising a second cylinder, wherein a testing fixture is disposed on the second cylinder, the second cylinder is used for driving the testing fixture to approach or separate from the first fixing seat, and when the object to be tested abuts against the two conduction testing pins to form a closed loop, the second cylinder drives the testing fixture to approach the first fixing seat, so that the testing fixture abuts against the object to be tested.

4. The foolproof testing device of claim 3, wherein the second cylinder is disposed above the first fixing seat and drives the testing fixture to move up and down, and the first cylinder is disposed at the bottom of the second fixing seat and drives the second fixing seat to move back and forth.

5. The fool-proof testing device of claim 4, further comprising a testing bracket, wherein the first fixing seat and the second cylinder are both fixed on the testing bracket.

6. The fool-proofing testing device of claim 3, wherein a resistance testing pin is disposed on the testing fixture, and when the second cylinder drives the testing fixture to approach the first fixing seat, the resistance testing pin abuts against the surface of the object to be tested.

7. The foolproof testing device of claim 6, wherein said resistance testing pins comprise a plurality of sets, each set comprising two of said resistance testing pins, two of said resistance testing pins being disposed adjacent to each other.

8. The foolproof testing device of claim 7, wherein an isolation block is disposed at an end of the second fixing base close to the conduction testing pin, and the isolation block is used for isolating the two resistance testing pins.

9. The foolproof testing device of claim 8, wherein said spacer blocks are of a triangular configuration.