WO2019127866A1

WO2019127866A1 - Fast detection apparatus and method for encrypted magnetic head

Info

Publication number: WO2019127866A1
Application number: PCT/CN2018/076134
Authority: WO
Inventors: 王高雄; 陈炳君; 苏钊源; 黄忠贤; 李宏现; 陈伟誉; 刘业增
Original assignee: 深圳粤宝电子科技有限公司
Priority date: 2017-12-25
Filing date: 2018-02-10
Publication date: 2019-07-04
Also published as: CN107907772A

Abstract

A fast detection apparatus and method for an encrypted magnetic head. The fast detection apparatus for an encrypted magnetic head comprises a comprehensive tester (100) for fast detection of an encrypted magnetic head, and a detection fixture (200) which is connected to the comprehensive tester (100) and is used for acquiring magnetic head information. The detection fixture (200) specifically comprises: a bottom box (210), wherein an encrypted magnetic head placement base (220) is provided on an upper surface of the bottom box (210); a test fixture base (230) vertically provided above the bottom box (210), wherein a push-pull clamp (240) for acquiring magnetic head data is provided on the test fixture base (230); and the push-pull clamp (240) is provided above the encrypted magnetic head placement base (220). The detection method for an encrypted magnetic head comprises the steps of: A, pre-setting detection information of an encrypted magnetic head in a control computer; B, using the detection fixture (200) to acquire information of the magnetic head; C, the comprehensive tester (100) receiving the information of the magnetic head, carrying out a measurement to obtain measurement information of the encrypted magnetic head, and sending the measurement information to the control computer; and D, after acquiring the measurement information, the control computer comparing same with the detection information, and outputting a result. Accordingly, an encrypted magnetic head can be subjected to efficient and fast detection.

Description

Encrypted magnetic head rapid detecting device and method

Technical field

The present invention relates to the field of electronic devices, and in particular, to a device and method for quickly detecting an encrypted magnetic head.

Background technique

The magnetic head is the core component of the POS machine and the card reader. The magnetic signal of the magnetic card is converted into an electrical signal through the internal coil, and then the user's account information and encrypted information are obtained, and the transfer payment and other operations are performed; in the prior art, the manufacturer It is necessary to test the magnetic head produced by itself. The method is to connect the head of the magnetic head through the insulation meter, the conduction meter and the multimeter, and test the insulation, continuity and grounding of the magnetic head. The above method requires an insulation meter. The continuity meter and the multimeter are directly in contact with the terminals of the magnetic head to obtain the head information for detection.

However, due to the privacy of financial information, the magnetic head has an encryption requirement to prevent others from illegally stealing the account information of the user's magnetic card through devices such as the POS machine, in order to achieve the latest international security certification level PCI3.0 certification standard. The magnetic head needs to be encrypted by various means, including: epoxy encapsulation of the terminal of the magnetic head, disordering the line order of the wiring in the FPC board (flexible circuit board), etc., so that it is difficult for the illegal molecules to derive the magnetic head. Data, the resulting encrypted head can guarantee the privacy of financial information.

Encrypted heads prevent illicit molecules from obtaining head data, and also increase the difficulty for manufacturers to detect their own cryptographic heads. Because epoxy is applied to the terminals, it can no longer be passed directly through the insulation meter, the conduction meter, and the multimeter. The terminal is connected for detection; the line sequence of the cable in the flexible circuit board is also disturbed, and the head data is obtained by the gold finger measurement on one side of the flexible circuit board, and the disordered line sequence needs to be decoded during the measurement, and the line is added. The inspection process is slower, and the gold finger is a very slim port. The measuring end of the insulation meter, the conduction meter and the multimeter are relatively large, and it is impossible to measure the fine gold finger.

In the prior art, fast and accurate detection of an encrypted magnetic head that meets the international security certification level PCI 3.0 cannot be performed.

Therefore, the prior art has yet to be improved and developed.

Summary of the invention

The technical problem to be solved by the present invention is to provide a fast detecting device and method for an encrypted magnetic head, aiming at solving the problem that the encrypted magnetic head cannot be quickly and efficiently detected in the prior art.

The technical solution adopted by the present invention to solve the technical problem is as follows:

A cryptographic head rapid detecting device, comprising: a comprehensive tester for quickly detecting an encrypted magnetic head; and a detecting fixture connected to the integrated tester for acquiring information of the encrypted magnetic head;

Wherein, the detecting fixture specifically includes:

a bottom box, the upper surface of the bottom box is provided with an encryption head placement seat;

a test fixture base vertically disposed above the bottom box, wherein the test fixture base is provided with a clamp push-pull clamp for acquiring magnetic head data;

The clamp push-pull clamp is disposed above the encryption head placement seat.

The cryptographic head rapid detecting device, wherein the clip push-pull clamp specifically includes:

Fixing an optical axis fixing plate disposed on the base of the test fixture, the optical axis fixing plate being parallel to the bottom box;

a test pin guiding table disposed under the optical axis fixing plate, wherein the test pin guiding table and the optical axis fixing plate are connected by a linear bearing;

a push-pull gate for driving the test needle guide table to move up and down above the optical axis fixing plate, wherein the push-pull gate and the test pin guide table are connected by a connecting post;

A test pin for acquiring head data is disposed on the test pin guide table.

The encrypted magnetic head rapid detecting device, wherein the optical axis fixing plate has a semicircular ring shape, and both ends are connected with the test fixture base to form a through hole, and the connecting post passes through the through hole and the test pin. Guide table connection.

The cryptographic head rapid detecting device, wherein the push-pull gate specifically includes:

a mounting plate disposed on the base of the test fixture;

a push-pull rod disposed on the mounting plate, the push-pull rod being connected to the mounting plate through a rotating shaft;

The push-pull rod is provided with a connecting post, the upper end of the connecting post is connected with the push-pull rod, and the lower end is connected with the test needle guiding platform.

The cryptographic head rapid detecting device, wherein a plurality of metal probes are disposed on a bottom surface of the test pin, a test socket is disposed on a top surface of the test pin, and a metal probe and a test socket are electrically connected;

The bottom surface of the bottom box is provided with a signal input socket, and a side of the bottom box is provided with a signal output socket, and the signal input socket is electrically connected to the signal output socket;

The test socket and the signal input socket are connected by a data line;

The encrypted head placement base is electrically connected to the signal output socket.

The cryptographic head rapid detecting device, wherein the cryptographic head placement seat specifically includes:

a bottom plate, the bottom plate being disposed on an upper surface of the bottom case;

Two support columns vertically disposed on the bottom plate, the support post is made of metal, and the bottom end of the support post is electrically connected to the signal output socket;

One side of the encrypted magnetic head placement seat is further provided with a flexible circuit board placement seat, and the flexible circuit board placement seat is directly opposite to the position of the test pin.

The encrypted magnetic head rapid detecting device, wherein a replaceable substrate is disposed between the encrypted magnetic head placement base and the bottom case.

The cryptographic head rapid detecting device, wherein the integrated tester is provided with a socket, and the jack is connected to the signal output socket through a data line, and the comprehensive tester specifically includes:

Controlling a computer, the control computer being electrically connected to the socket;

An insulation meter for detecting poor insulation of the magnetic head and the flexible circuit board;

a continuity meter for detecting an open circuit short circuit between the encryption head and the flexible circuit board;

a multimeter for detecting internal resistance of the encrypted magnetic head and poor grounding;

The insulation meter, the conduction meter and the multimeter are respectively connected to the control computer.

A method for quickly detecting an encrypted magnetic head according to any of the preceding claims, comprising the steps of:

A. The flexible circuit board line sequence information, the insulation resistance information, the grounding resistance information, and the internal resistance information of the encrypted magnetic head of the encrypted magnetic head are preset as detection information in the control computer, and stored in the control computer;

B. The encrypted magnetic head to be detected is placed on the encryption head placement seat, wherein the magnetic head body is placed on the two support columns, and the flexible circuit board is placed on the flexible circuit board placement seat;

C. The push-pull clamp of the pressing clamp causes the test pin to contact the gold finger on the flexible circuit board to obtain the head information, and the insulation meter, the conduction meter and the multimeter respectively perform the fast detection on the encrypted magnetic head, and then send the measurement information to the control computer;

D. After the control computer obtains the measurement information, it compares with the detection information, and outputs the test result.

In summary, the present invention provides a fast detecting device and method for an encrypted magnetic head. The fast detecting device for an encrypted magnetic head includes a comprehensive tester for detecting a magnetic head and a detecting fixture for acquiring magnetic head information connected to the integrated testing device; The fixture specifically includes: a bottom box, an upper surface of the bottom box is provided with an encryption head placement seat; a test fixture base vertically disposed above the bottom box, and a clamp clamp clamp for setting the head data on the test fixture base; The push-pull clamp is placed above the encryption head mount. The method for quickly detecting the encrypted magnetic head includes the steps of: A, presetting the detection information of the encrypted magnetic head in the control computer; B, acquiring the magnetic head information by using the fast detecting fixture; C, receiving the magnetic head information by the comprehensive testing instrument and measuring the measurement information of the encrypted magnetic head; Control the computer; D, control the computer to obtain the measurement information and compare with the detection information, and output the result. Thereby, the present invention enables efficient and rapid detection of the encrypted magnetic head.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a fast detecting device for an encrypted magnetic head according to the present invention.

2 is a perspective view of a detecting jig of the encrypted magnetic head rapid detecting device of the present invention.

Figure 3 is a perspective view of the encrypted head placement seat of the encrypted magnetic head rapid detecting device of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Please refer to FIG. 1 to FIG. 3 simultaneously. FIG. 1 is a perspective view of the fast detecting device for the encrypted magnetic head according to the present invention. 2 is a perspective view of a detecting jig of the encrypted magnetic head rapid detecting device of the present invention. Figure 3 is a perspective view of the encrypted head placement seat of the encrypted magnetic head rapid detecting device of the present invention. As shown in FIG. 1 to FIG. 3, the multi-track encrypted magnetic head includes a comprehensive tester 100 for quickly detecting an encrypted magnetic head, and a detecting fixture 200 connected to the integrated tester 100 for acquiring encrypted magnetic head information;

The detecting fixture 200 specifically includes:

a bottom box 210, the bottom surface of the bottom box 210 is provided with an encryption head placement seat 220;

a test fixture base 230 vertically disposed above the bottom box 210, the test fixture base 230 is provided with a clamp push-pull clamp 240 for acquiring head data;

The clamp push-pull clamp 240 is disposed above the encrypted head placement seat 220.

In a specific operation, the encrypted magnetic head to be detected is placed on the encrypted magnetic head placement base 220, and then the clamp push-pull clamp 240 is pulled down, and the clamp push-pull clamp 240 contacts the encrypted magnetic head to obtain the insulation information and conduction of the magnetic head. The information, the internal resistance information of the encrypted magnetic head and whether the grounding is good or not are summarized into the head information, and the detecting fixture 200 transmits the magnetic head information to the comprehensive testing instrument 100, and the integrated testing instrument 100 detects the magnetic head information after receiving the data, and the obtained measurement is obtained. The data is compared with the pre-stored detection data. When the measurement data is in compliance with the detection data, the output result is qualified. If the measurement data does not meet the requirements compared with the detection data, the output result is unqualified, and the operator When detecting the quality of the encrypted magnetic head, it is only necessary to pull down the clamp push-pull clamp 240 to obtain the data of the encrypted magnetic head, and the encrypted magnetic head can be detected.

Further, the clamp push-pull clamp 240 specifically includes:

The optical axis fixing plate 241 is fixedly disposed on the test fixture base 230, the optical axis fixing plate 241 is parallel to the bottom case 210;

a test pin guiding table 242 disposed under the optical axis fixing plate 241, the test pin guiding table 242 and the optical axis fixing plate 241 are connected by a linear bearing 243;

a push-pull gate 244 disposed above the optical axis fixing plate 241 for driving the test needle guiding table 242 to move up and down, the push-pull gate 244 and the test pin guiding table 242 are connected by a connecting post 245;

A test pin 246 for acquiring head data is disposed on the test pin guide table 242.

In the specific work, the optical axis fixing plate 241 plays a fixed role on the test pin guiding table 242, and is connected to the test pin guiding table 242 through the linear bearing 243. The specific number of the linear bearing 243 is four, respectively, in the test. At the four corners of the needle guide 242; when the user pulls down the push-pull gate 244, the connecting post 245 applies a downward pressure to the test needle guide 242. At this time, the test needle guide 242 is guided by the linear bearing 243, vertically Moving directly downward, the test pin 246 is inserted into the golden finger of the encryption head to obtain information of the encrypted magnetic head, and the linear bearing 243 positions the downward direction of the test needle guide 242 to ensure that the test is performed when the push-pull gate 244 is pulled down. The needle 246 is capable of accurately inserting a gold finger to acquire data of the encrypted magnetic head.

Further, the shape of the optical axis fixing plate 241 is semicircular, and the two ends are connected with the test fixture base 230 to form a through hole 241A. The connecting post 245 passes through the through hole 241A and the test pin guiding table 242. connection.

In the specific operation, since the linear bearing 243 is disposed at the three corners of the test pin guiding table 242, the above arrangement manner enables the connecting post 245 to pass through the through hole 241A and be connected to the center of the test pin guiding table 242. When the connecting post 245 drives the test pin guiding table 242 to move downward, since the connecting post 245 is at the center of the test pin guiding table 242, when the connecting post 245 is applied, the three linear bearings 243 are evenly pressed, and the test pin can be correctly guided. The guide table 242 is moved directly downward to ensure that the test pin 246 can be accurately inserted into the gold finger, thereby improving the detection efficiency.

Further, the push-pull gate 244 specifically includes:

a mounting plate 244A disposed on the test fixture base 230;

a push-pull rod 244B disposed on the mounting plate 244A, the push-pull rod 244B being coupled to the mounting plate 244A via a rotating shaft (not shown);

The push-pull rod 244B is provided with a connecting post 245. The upper end of the connecting post 245 is connected to the push-pull rod 244B, and the lower end is connected to the test pin guiding table 242.

Further, the connecting post 245 specifically includes a post 245A connecting the post 245 and two mounting wings 245B disposed at the top end of the post 245A, the post 245A and the two mounting wings 245B having a Y-shaped structure, Each of the two mounting wings 245B is provided with a screw hole. The push-pull rod 244B is provided with a through hole, and a connecting shaft is disposed through the through hole, and is fixedly connected to the screw hole at both ends.

In the specific work, the push-pull rod 244B and the mounting plate 244A are connected by a rotating shaft to form a lever. When the user pulls down or lifts the push-pull rod 244B, the lever moves around the rotating shaft, thereby driving the connecting post 245 connected thereto, and testing The needle guide 242 transmits thrust or tension. Since the detecting jig 200 needs to detect a large number of encrypted magnetic head products during the operation of detecting the encrypted magnetic head, the test pin guiding table 242 needs to be frequently lifted and lowered, and the driving can be reduced by the lever driving of the push-pull rod 244B. The effort spent on the movement of the needle guide 242 improves the user experience and efficiency of use.

Further, a plurality of metal probes 246A are disposed on the bottom surface of the test pin 246, and a test socket 246B is disposed on the top surface of the test pin 246, and the metal probe 246A and the test socket 246B are electrically connected;

The upper surface of the bottom box 210 is provided with a signal input socket 211, and a side of the bottom box 210 is provided with a signal output socket 212, and the signal input socket 211 is electrically connected to the signal output socket 212;

The test socket 246B and the signal input socket 211 are connected by a data line;

The encrypted head placement base 220 is electrically connected to the signal output socket 212.

In the specific work, the test pin guiding table 242 moves downward, the metal probe 246A contacts the golden finger of the encrypted magnetic head, and the conduction information and the insulation information of the magnetic head are acquired at the gold finger end, and the metal probe 246A transmits the acquired magnetic head information. To the test socket 246B, through the connection of the data line, the test socket 246B transmits the head information to the signal input socket 211, the signal input socket 211 transmits the head information to the signal output socket 212, and the integrated tester 100 signal output socket 212 links, comprehensive testing The instrument 100 obtains the head information and then detects the information; at the same time, the information of the encrypted head housing 220 for acquiring the encrypted head housing is sent to the signal output socket 212 for transmission to the integrated tester 100 to detect the insulation of the encrypted head and whether it is grounded.

Further, the encrypted head placement base 220 specifically includes:

a bottom plate 221, the bottom plate 221 is disposed on an upper surface of the bottom case 210;

Two support posts 222 are disposed on the bottom plate 221, the support post 222 is made of metal, and the bottom end of the support post 222 is electrically connected to the signal output socket 212;

One side of the encrypted magnetic head placement base 220 is further provided with a flexible circuit board placement seat 223, which is positioned opposite the position of the test pin 246.

In a specific operation, the head body of the encrypted magnetic head is placed on two support posts 222, and the bottom plate 221 is provided with a metal probe (not shown) for contacting the track of the encrypted magnetic head, the metal probe and the signal The output socket 212 is electrically connected. The flexible circuit board placement seat 223 is provided with a recess for placing a flexible circuit board. The shape of the recess is adapted to the shape of the flexible circuit board. In actual operation, the metal probe 246A The data of the golden finger is sent to the comprehensive tester 100, the data of the support head 222 is obtained from the magnetic head body casing and sent to the comprehensive tester 100, the signal of the metal probe acquiring the track is sent to the comprehensive tester 100; the comprehensive tester 100 tests the metal probe The data acquired by 246A is used to detect the continuity of the encrypted magnetic head; the integrated tester 100 tests the data acquired by the metal probe 246A and the data acquired by the support column 222 to see if the current is conducted, thereby detecting the insulation of the encrypted magnetic head. The comprehensive tester 100 tests the data acquired by the metal probe 246A and the data acquired by the metal probe to detect whether the encrypted magnetic head is grounded.

Further, a replaceable substrate 300 is disposed between the encrypted magnetic head placement base 220 and the bottom case 210.

Further, the test pin guiding table 242 is provided with a plurality of test pin mounting grooves 242A, and the test pins 246 are installed in the test pin mounting grooves 242A.

In actual work, the shape of the magnetic head body and the flexible circuit board and the relative positions of the two may be different due to different customization requirements. In order to facilitate the detection of different sizes of the encrypted magnetic head, the magnetic head placement seat 220 and the bottom box 210 are interposed. A replaceable substrate 300 is provided, and the encrypted head placement base 220 is fixedly coupled to the replaceable substrate 300. The upper surface of the bottom case 210 is provided with a placement groove for placing the replaceable substrate 300, and the shape of the placement groove and the shape of the replaceable substrate 300 are provided. Suitably, when detecting the encrypted heads of different specifications, only the replacement substrate is used, and the different encryption head placements 220 can be replaced on the bottom box 210 to adapt to the different sizes of the encryption heads, and at the same time, the test pins 246 are installed in the encryption. The test fixture mounting slot 242A directly above the magnetic head can complete the test fixture debugging for the encrypted heads of different specifications.

Further, the integrated tester 100 is provided with a socket 110, and the socket 110 is connected to the signal output socket 212 through a data line. The integrated tester 100 specifically includes:

Controlling a computer (not shown), the control computer being electrically connected to the socket 110;

Insulation meter for detecting poor insulation of the magnetic head and flexible circuit board (not shown);

A continuity meter (not shown) for detecting an open circuit of the encrypted magnetic head and the flexible circuit board;

A multimeter (not shown) for detecting internal resistance information of the encrypted magnetic head and poor grounding;

In the specific work, the insulation meter obtains the data acquired by the metal probe 246A and the data acquired by the support column 222, and determines whether the insulation state of the encrypted magnetic head is determined by detecting whether the two have current conduction, and obtains an insulation detection result. If the current is conducting, the insulation is unqualified. If no current is passed, the insulation is qualified. The conduction meter obtains the data obtained by the metal probe 246A, turns on the detection result, and detects the presence or absence of current to obtain the conduction detection. As a result, if there is current passing, the continuity is qualified. If no current is passed, the continuity is unqualified; the multimeter obtains the data obtained by the metal probe 246A and the data acquired by the metal probe, and detects whether the encrypted magnetic head is grounded, and the grounding test is obtained. result.

The insulation meter, the conduction meter and the multimeter respectively send the insulation detection result, the conduction detection result, the head internal resistance result and the grounding test result to the control computer to control the computer output result. If the above four indicators are all qualified, the output is output. The conclusion is good, if there is a disqualification indicator, the output is a defective product, and the name and specific parameters of the unqualified indicator are displayed.

The present invention also provides a method for quickly detecting an encrypted magnetic head according to any of the preceding claims, comprising the steps of:

S1, in the control computer, the flexible circuit board line sequence information, the insulation resistance information, the grounding resistance information, and the internal resistance information of the encryption head are preset as the detection information, and stored in the control computer;

S2, the encrypted magnetic head to be detected is placed on the encryption head placement seat, wherein the magnetic head body is placed on the two support columns, and the flexible circuit board is placed on the flexible circuit board placement seat;

S3. The push-pull clamp of the pressing clamp causes the test pin to contact the gold finger on the flexible circuit board to obtain the head information, and the insulation meter, the conduction meter and the multimeter respectively perform the fast detection on the encrypted magnetic head, and then send the measurement information to the control computer;

S4. After the control computer obtains the measurement information, it compares with the detection information, and outputs the test result.

In the specific work, in the step S1, the detection information is pre-stored in the control computer, because the flexible circuit board of the encryption head confuses the line sequence of the lead wire of the binding column, so in the process of detection, the input encryption is required. Line sequence, so that the line sequence is decrypted during the detection process, accurately know which gold finger corresponds to which terminal, in order to accurately measure the conduction of each wire, so it is necessary to pre-store the flexible circuit in the control computer Plate wire sequence information; the metal casing of the encryption head plays a protective role and needs to be insulated, so that the metal casing does not have current contact with the internal components, and the protection device is safe to use. In the specific detection, the gold finger and the metal are connected. The outer casing forms a loop, and the resistance value is measured. When the resistance value is greater than a certain value, it is judged to meet the insulation standard, otherwise the insulation is judged to be unqualified. Therefore, the insulation resistance information needs to be set; in order to ensure the safety of the magnetic head, it is necessary to ensure the encryption head. Grounding, the specific detection method is to connect the gold finger and the track to form a loop. When the resistance value is greater than a certain value, it is determined qualified ground, otherwise deemed to have failed, it is necessary to set the ground resistance information;

The step S2 is to detect the work preparation stage, the magnetic head body of the encrypted magnetic head to be detected is placed on the encryption head placement seat, the metal casing is placed on the two support columns, the track is in contact with the metal probe, and the flexible circuit board is placed on the flexible circuit board. Placed on the seat;

The S3 step inspection work is officially started. The lower pressure clamp pushes and pulls the clamp, the test needle guide table moves downward under the guidance of the connecting column, the metal probe penetrates the gold finger and makes contact, and the insulation meter, the conduction meter and the multimeter start working, and the insulation is insulated. Taking the metal probe as the positive electrode and the supporting column as the negative electrode, the voltage is output to the encrypted magnetic head, and the resistance value of the encrypted magnetic head is detected, and the insulation detection result is sent to the control computer; the conduction meter supplies the current to the metal probe to determine the wire lead. Through the situation, the conduction detection result is sent to the control computer; the multimeter uses the metal probe as the positive pole, the metal probe as the negative pole, outputs the voltage to the encrypted magnetic head, detects the resistance value of the encrypted magnetic head, and sends the grounding detection result to the control computer; The insulation test result, the continuity test result, and the ground test result are collectively referred to as measurement information.

The S4 step is the result output step, and the control computer obtains the measurement information and compares it with the detection information. The specific comparison method is to compare the insulation resistance information with the insulation detection result to determine whether the insulation meets the requirements; the flexible circuit board line sequence information combination guide Through the detection result, it is judged whether the continuity meets the requirements; the grounding resistance information is compared with the grounding detection result to determine whether the grounding is grounded; and the internal resistance information of the encrypted magnetic head is judged at the same time; if the above four determination results are all in accordance with the standard, the output result is a good product, if If any of the above four judgment results does not meet the standard, the output result is a defective product, and the unqualified items and parameters are displayed.

In practical work, the fast detecting device and method for the encrypted magnetic head provided by the present invention are relatively simple to use and are divided into the following steps:

Equipment debugging steps, according to the actual detection of the encryption head specifications, replace the appropriate replaceable substrate, and install the test pin, connect the test pin and the bottom box through the data line, complete the installation and debugging of the test fixture; pre-store the detection information in the control computer, complete The debugging of the integrated tester connects the signal output socket and the socket through the data line to realize the connection between the integrated tester and the detection fixture, and completes the equipment debugging.

The test step is to pull down the clamp push-pull clamp, the clamp contacts the encrypted magnetic head and acquires the magnetic head information, and the comprehensive tester tests the four indexes of the insulation head, the conduction, the partial short circuit and the grounding of the encrypted magnetic head, and obtains the output result, and the user lifts the clamp. Push the clamp to remove the encryption head and complete the test procedure.

The invention provides a fast detecting device and method for an encrypted magnetic head. The fast detecting device for an encrypted magnetic head comprises a comprehensive tester for detecting a magnetic head and a detecting fixture for acquiring magnetic head information connected with the integrated testing device; the detecting fixture comprises: a bottom a box, the upper surface of the bottom box is provided with an encryption head placement seat; a test fixture base vertically disposed above the bottom box; the test fixture base is provided with a clamp push-pull clamp for acquiring head data; the clamp push-pull clamp is disposed at Encrypt the head above the seat. The fast detection method of the encrypted magnetic head includes the steps of: A, presetting the detection information of the encrypted magnetic head in the control computer; B, acquiring the magnetic head information by using the detection fixture; C, receiving the magnetic head information by the comprehensive tester, and measuring the measurement information of the encrypted magnetic head is sent to the control Computer; D, control computer to obtain measurement information, compare with the detection information, and output the result. Thereby, the present invention enables efficient and rapid detection of the encrypted magnetic head.

It is to be understood that the application of the present invention is not limited to the above-described examples, and those skilled in the art can make modifications and changes in accordance with the above description, all of which are within the scope of the appended claims.

Claims

A fast detecting device for an encrypted magnetic head, comprising: a comprehensive tester for quickly detecting an encrypted magnetic head; and a detecting fixture connected to the integrated tester for acquiring information of the encrypted magnetic head;

Wherein, the detecting fixture specifically includes:

a bottom box, the upper surface of the bottom box is provided with an encryption head placement seat;

a test fixture base vertically disposed above the bottom box, wherein the test fixture base is provided with a clamp push-pull clamp for acquiring magnetic head data;

The clamp push-pull clamp is disposed above the encryption head placement seat.
The cryptographic head rapid detecting device according to claim 1, wherein the clamp push-pull clamp comprises:

Fixing an optical axis fixing plate disposed on the base of the test fixture, the optical axis fixing plate being parallel to the bottom box;

a test pin guiding table disposed under the optical axis fixing plate, wherein the test pin guiding table and the optical axis fixing plate are connected by a linear bearing;

a push-pull gate for driving the test needle guide table to move up and down above the optical axis fixing plate, wherein the push-pull gate and the test pin guide table are connected by a connecting post;

A test pin for acquiring head data is disposed on the test pin guide table.
The cryptographic head rapid detecting device according to claim 2, wherein the optical axis fixing plate has a semicircular ring shape, and both ends are connected with the test fixture base to form a through hole, and the connecting column passes through the The through hole is connected to the test pin guide.
The cryptographic head rapid detecting device according to claim 2, wherein the push-pull gate comprises:

a mounting plate disposed on the base of the test fixture;

a push-pull rod disposed on the mounting plate, the push-pull rod being connected to the mounting plate through a rotating shaft;

The push-pull rod is provided with a connecting post, the upper end of the connecting post is connected with the push-pull rod, and the lower end is connected with the test needle guiding platform.
The cryptographic head rapid detecting device according to claim 2, wherein a plurality of metal probes are arranged on the bottom surface of the test pin, and a test socket, a metal probe and a test socket are arranged on the top surface of the test pin. connection;

The bottom surface of the bottom box is provided with a signal input socket, and a side of the bottom box is provided with a signal output socket, and the signal input socket is electrically connected to the signal output socket;

The test socket and the signal input socket are connected by a data line;

The encrypted head placement base is electrically connected to the signal output socket.
The cryptographic head rapid detecting device according to claim 5, wherein the cryptographic head placement base comprises:

a bottom plate, the bottom plate being disposed on an upper surface of the bottom case;

Two support columns vertically disposed on the bottom plate, the support post is made of metal, and the bottom end of the support post is electrically connected to the signal output socket;

One side of the encrypted magnetic head placement seat is further provided with a flexible circuit board placement seat, and the flexible circuit board placement seat is directly opposite to the position of the test pin.
The cryptographic head rapid detecting device according to claim 1, wherein a replaceable substrate is disposed between the cryptographic head placement base and the bottom case.
The device of claim 5, wherein the integrated tester is provided with a socket, and the socket is connected to the signal output socket through a data line. The integrated tester specifically includes:

Controlling a computer, the control computer being electrically connected to the socket;

An insulation meter for detecting poor insulation of the magnetic head and the flexible circuit board;

a continuity meter for detecting an open circuit short circuit between the encryption head and the flexible circuit board;

A multimeter for detecting a partial short circuit of a cryptographic head and a poor grounding;

The insulation meter, the conduction meter and the multimeter are respectively connected to the control computer.
A method for quickly detecting an encrypted magnetic head according to any one of claims 1 to 8, characterized in that it comprises the following steps:

A. The flexible circuit board line sequence information, the insulation resistance information, the grounding resistance information, and the internal resistance information of the encrypted magnetic head of the encrypted magnetic head are preset as detection information in the control computer, and stored in the control computer;

B. The encrypted magnetic head to be detected is placed on the encryption head placement seat, wherein the magnetic head body is placed on the two support columns, and the flexible circuit board is placed on the flexible circuit board placement seat;

C. The push-pull clamp of the pressing clamp causes the test pin to contact the gold finger on the flexible circuit board to obtain the head information, and the insulation meter, the conduction meter and the multimeter respectively detect the encrypted magnetic head and then send the measurement information to the control computer;

D. After the control computer obtains the measurement information, it compares with the detection information, and outputs the test result.