A fast detection device and method for encryption magnetic head

Abstract

The present invention provides a fast detection device and method for an encryption magnetic head. The fast detection device for an encryption magnetic head includes a comprehensive tester for fast detection of an encryption magnetic head and a detection fixture connected to the comprehensive tester for obtaining magnetic head information; the detection fixture specifically includes: a bottom box, an encryption magnetic head placement seat is arranged on the upper surface of the bottom box; a test fixture base is vertically arranged above the bottom box, and a fixture push-pull clamp for obtaining magnetic head data is arranged on the test fixture base; the fixture push-pull clamp is arranged above the encryption magnetic head placement seat. The encryption magnetic head detection method includes the following steps: A. presetting the detection information of the encryption magnetic head in the control computer; B. using the detection fixture to obtain the magnetic head information; C. the comprehensive tester receives the magnetic head information and measures the measurement information of the encryption magnetic head and sends it to the control computer; D. the control computer obtains the measurement information and compares it with the detection information, and outputs the result. Thus, the present invention can perform efficient and fast detection on the encryption magnetic head.

Description

Technical Field

[0001] The invention relates to the field of electronic devices, and in particular to a fast detection device and method for an encryption magnetic head. Background Art

[0002] The magnetic head is the core component of POS machines and card swiping machines. It converts the magnetic signal of the magnetic card into an electrical signal through the internal coil, and then obtains the user's account information and encryption information to perform operations such as transfer and payment. In the existing technology, manufacturers need to test the magnetic heads they produce. The method of use is to use an insulation meter, a continuity meter and a multimeter to connect to the wiring posts of the magnetic head respectively to test the insulation, conductivity and grounding of the magnetic head. The above method requires the insulation meter, the continuity meter and the multimeter to directly contact the wiring posts of the magnetic head to obtain the magnetic head information for detection.

[0003] However, due to the privacy of financial information, the magnetic head has an encryption requirement to prevent others from illegally stealing the user's magnetic card account information through POS machines and other devices. In order to meet the latest international security certification level PCI3.0 certification standards, it is necessary to encrypt the magnetic head through a variety of means, including: epoxy resin encapsulation of the magnetic head's terminal, disrupting the line sequence of the wiring in the FPC board (flexible circuit board), etc., so that it is difficult for criminals to export the data of the magnetic head. The encrypted magnetic head can ensure the privacy of financial information.

[0004] The encrypted head can prevent criminals from obtaining the head data, but it also increases the difficulty for manufacturers to test the encrypted heads they produce. Due to the epoxy resin encapsulation of the terminal, it is no longer possible to directly connect the terminal for testing through an insulation meter, a continuity meter, and a multimeter. The wiring sequence of the flexible circuit board is also disrupted, and the head data is obtained by measuring the gold finger on one side of the flexible circuit board. The disrupted line sequence needs to be decoded during measurement, which increases the detection process and is less efficient. At the same time, the gold finger is a very thin port, and the measuring ends of the insulation meter, continuity meter, and multimeter are relatively thick and cannot measure the thin gold finger.

[0005] In the prior art, it is not possible to quickly and accurately detect encryption magnetic heads that have reached the international security certification level PCI 3.0.

[0006] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a device and method for quickly detecting an encryption magnetic head in view of the above-mentioned defects of the prior art, aiming to solve the problem that the prior art cannot quickly and efficiently detect the encryption magnetic head.

[0008] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0009] A fast detection device for an encryption magnetic head, comprising a comprehensive tester for fast detection of the encryption magnetic head and a detection fixture connected to the comprehensive tester for obtaining encryption magnetic head information;

[0010] Wherein, the detection fixture specifically includes:

[0011] A bottom box, an upper surface of which is provided with an encryption magnetic head placement seat;

[0012] A test fixture base vertically arranged above the bottom box, the test fixture base being provided with a fixture push-pull clamp for acquiring magnetic head data;

[0013] The clamp push-pull clamp is arranged above the encryption magnetic head placement seat.

[0014] The encryption magnetic head rapid detection device, wherein the clamp push-pull clamp specifically comprises:

[0015] An optical axis fixing plate fixedly arranged on the test fixture base, wherein the optical axis fixing plate is parallel to the bottom box;

[0016] A test needle guide platform is arranged below the optical axis fixing plate, and the test needle guide platform is connected to the optical axis fixing plate through a linear bearing;

[0017] A push-pull gate disposed above the optical axis fixing plate for driving the test needle guide platform to move up and down, the push-pull gate being connected to the test needle guide platform via a connecting column;

[0018] The test needle guide platform is provided with a test needle for acquiring magnetic head data.

[0019] In the encryption magnetic head rapid detection device, the optical axis fixing plate is in the shape of a semicircular ring, and its two ends are connected to the test fixture base to form a through hole, and the connecting column passes through the through hole to be connected to the test needle guide platform.

[0020] The encryption magnetic head rapid detection device, wherein the push-pull gate specifically includes:

[0021] a mounting plate disposed on the test fixture base;

[0022] A push-pull rod disposed on the mounting plate, the push-pull rod being connected to the mounting plate via a rotating shaft;

[0023] The push-pull rod is provided with a connecting column, the upper end of the connecting column is connected to the push-pull rod, and the lower end of the connecting column is connected to the test needle guide platform.

[0024] The encryption magnetic head rapid detection device, wherein a plurality of metal probes are arranged on the bottom surface of the test needle, a test socket is arranged on the top surface of the test needle, and the metal probes and the test socket are electrically connected;

[0025] The upper surface of the bottom box is provided with a signal input socket, and the side surface of the bottom box is provided with a signal output socket, and the signal input socket is electrically connected to the signal output socket;

[0026] The test socket and the signal input socket are connected via a data line;

[0027] The encryption magnetic head placement seat is electrically connected to the signal output socket.

[0028] The encryption magnetic head rapid detection device, wherein the encryption magnetic head placement seat specifically includes:

[0029] A bottom plate, the bottom plate being arranged on the upper surface of the bottom box;

[0030] Two supporting columns are vertically arranged on the bottom plate, the supporting columns are made of metal, and the bottom ends of the supporting columns are electrically connected to the signal output socket;

[0031] A flexible circuit board placement seat is also provided on one side of the encryption magnetic head placement seat, and the flexible circuit board placement seat is directly opposite to the position of the test needle.

[0032] The encryption magnetic head rapid detection device, wherein a replaceable substrate is arranged between the encryption magnetic head placement seat and the bottom box.

[0033] The encryption magnetic head rapid detection device, wherein the comprehensive tester is provided with a socket, the socket is connected to the signal output socket through a data line, and the comprehensive tester specifically comprises:

[0034] A control computer, the control computer being electrically connected to the socket;

[0035] Insulation meter for detecting poor insulation of encryption heads and flexible circuit boards;

[0036] Continuity meter for detecting open and short circuits of encryption heads and flexible circuit boards;

[0037] A multimeter for detecting the internal resistance and poor grounding of the encryption head;

[0038] The insulation meter, continuity meter and multimeter are connected to the control computer respectively.

[0039] A method for rapid detection of an encryption magnetic head as described in any one of the above, comprising the following steps:

[0040] A. Preset the line sequence information, insulation resistance information, ground resistance information and internal resistance information of the encryption magnetic head in the control computer as the detection information and store them in the control computer;

[0041] B. Place the encryption magnetic head to be tested on the encryption magnetic head placement seat, wherein the magnetic head body is placed on two supporting pillars, and at the same time, place the flexible circuit board on the flexible circuit board placement seat;

[0042] C. Press down the fixture and push and pull the clamp to make the test needle contact the gold finger on the flexible circuit board to obtain the head information. The insulation meter, conductivity meter and multimeter respectively quickly test the encrypted head and send the measurement information to the control computer;

[0043] D. The control computer obtains the measurement information, compares it with the detection information, and outputs the test results.

[0044] In summary, the present invention provides a fast detection device and method for an encrypted magnetic head. The fast detection device for an encrypted magnetic head includes a comprehensive tester for detecting magnetic heads and a detection fixture connected to the comprehensive tester for obtaining magnetic head information; the detection fixture specifically includes: a bottom box, an encrypted magnetic head placement seat is arranged on the upper surface of the bottom box; a test fixture base is vertically arranged above the bottom box, and a fixture push-pull clamp for obtaining magnetic head data is arranged on the test fixture base; the fixture push-pull clamp is arranged above the encrypted magnetic head placement seat. The fast detection method for an encrypted magnetic head includes the following steps: A. presetting the detection information of the encrypted magnetic head in the control computer; B. using the fast detection fixture to obtain the magnetic head information; C. the comprehensive tester receives the magnetic head information and measures the measurement information of the encrypted magnetic head and sends it to the control computer; D. the control computer obtains the measurement information and compares it with the detection information, and outputs the result. Thus, the present invention can perform efficient and fast detection on the encrypted magnetic head. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a stereoscopic diagram of the encryption magnetic head rapid detection device of the present invention.

[0046] Figure 2 It is a three-dimensional diagram of the detection fixture of the encryption magnetic head rapid detection device of the present invention.

[0047] Figure 3 It is a three-dimensional diagram of an encryption magnetic head placement seat of the encryption magnetic head rapid detection device of the present invention. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention clearer and more specific, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] Please also see Figures 1 to 3 , Figure 1 It is a stereoscopic diagram of the encryption magnetic head rapid detection device of the present invention. Figure 2 It is a three-dimensional diagram of the detection fixture of the encryption magnetic head rapid detection device of the present invention. Figure 3 1 is a three-dimensional diagram of the encryption head placement seat of the encryption head rapid detection device of the present invention. Figure 1-Figure 3 As shown, the multi-track encryption magnetic head comprises a comprehensive tester 100 for quickly testing the encryption magnetic head and a testing fixture 200 connected to the comprehensive tester 100 for obtaining encryption magnetic head information;

[0050] The detection fixture 200 specifically includes:

[0051] A bottom box 210, on the upper surface of which an encryption magnetic head placement seat 220 is provided;

[0052] A test fixture base 230 vertically disposed above the bottom box 210 , wherein a fixture push-pull clamp 240 for acquiring magnetic head data is disposed on the test fixture base 230 ;

[0053] The clamp push-pull clamp 240 is disposed above the encrypted magnetic head placement seat 220 .

[0054] During the specific work, the encrypted magnetic head to be tested is placed on the encrypted magnetic head placement seat 220, and then the clamp push-pull clamp 240 is pulled down. The clamp push-pull clamp 240 contacts the encrypted magnetic head and obtains the insulation information, conduction information, encryption magnetic head internal resistance information and whether the grounding is good. Four information are summarized as the magnetic head information. The detection fixture 200 sends the magnetic head information to the comprehensive tester 100. After receiving the data, the comprehensive tester 100 detects the magnetic head information and compares the obtained measurement data with the pre-stored detection data. When the measurement data meets the requirements compared 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. When the operator detects the quality of the encryption magnetic head, he only needs to pull down the clamp push-pull clamp 240 to obtain the data of the encryption magnetic head to detect the encryption magnetic head.

[0055] Furthermore, the clamp push-pull clamp 240 specifically includes:

[0056] An optical axis fixing plate 241 is fixedly disposed on the test fixture base 230 , wherein the optical axis fixing plate 241 is parallel to the bottom box 210 ;

[0057] A test needle guide platform 242 is disposed below the optical axis fixing plate 241, and the test needle guide platform 242 is connected to the optical axis fixing plate 241 via a linear bearing 243;

[0058] A push-pull gate 244 disposed above the optical axis fixing plate 241 and used for driving the test needle guide platform 242 to move up and down, wherein the push-pull gate 244 is connected to the test needle guide platform 242 via a connecting column 245;

[0059] The test needle guide platform 242 is provided with a test needle 246 for acquiring head data.

[0060] During specific operation, the optical axis fixing plate 241 plays a role of fixing the test needle guide platform 242, and is connected to the test needle guide platform 242 through a linear bearing 243. The specific number of the linear bearings 243 is four, which are respectively located at the four corners of the test needle guide platform 242; when the user pulls down the push-pull gate 244, the connecting column 245 applies downward pressure to the test needle guide platform 242. At this time, the test needle guide platform 242 moves vertically downward under the guidance of the linear bearing 243, thereby inserting the test needle 246 into the gold finger of the encryption head to obtain the information of the encryption head. The linear bearing 243 positions the downward movement direction of the test needle guide platform 242 to ensure that when the push-pull gate 244 is pulled down, the test needle 246 can be accurately inserted into the gold finger, thereby obtaining the data of the encryption head.

[0061] Furthermore, the optical axis fixing plate 241 is in the shape of a semicircular ring, and its two ends are connected to the test fixture base 230 to form a through hole 241A, and the connecting column 245 passes through the through hole 241A and is connected to the test needle guide platform 242 .

[0062] During specific operation, since the linear bearings 243 are arranged on the three corners of the test needle guide platform 242, the above-mentioned arrangement can enable the connecting column 245 to be connected to the center of the test needle guide platform 242 after passing through the through hole 241A. When the connecting column 245 drives the test needle guide platform 242 to move downward, since the connecting column 245 is at the center of the test needle guide platform 242, when the connecting column 245 applies force, the three linear bearings 243 are evenly stressed, and can correctly guide the test needle guide platform 242 to move directly downward, ensuring that the test needle 246 can be accurately inserted into the gold finger, thereby improving the detection efficiency.

[0063] Furthermore, the push-pull gate 244 specifically includes:

[0064] A mounting plate 244A disposed on the test fixture base 230;

[0065] A push-pull rod 244B is disposed on the mounting plate 244A, and the push-pull rod 244B is connected to the mounting plate 244A via a rotating shaft (not shown in the figure);

[0066] The push-pull rod 244B is provided with a connecting column 245 . The upper end of the connecting column 245 is connected to the push-pull rod 244B, and the lower end of the connecting column 245 is connected to the test needle guide platform 242 .

[0067] Furthermore, the connecting column 245 specifically includes a column body 245A of the connecting column 245 and two mounting wings 245B arranged at the top of the column body 245A. The column body 245A and the two mounting wings 245B are in a Y-shaped structure. Each of the two mounting wings 245B is provided with a screw hole, and the push-pull rod 244B is provided with a through hole. A connecting shaft is provided to pass through the through hole and is respectively connected and fixed to the screw holes at both ends.

[0068] During specific operation, the push-pull rod 244B is connected to the mounting plate 244A through 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 column 245 connected thereto to transmit a thrust or pull force to the test needle guide platform 242. Since the detection fixture 200 needs to detect a large number of encrypted magnetic head products during the work of detecting encrypted magnetic heads, the test needle guide platform 242 needs to be frequently lifted and lowered. The lever-driven method of the push-pull rod 244B can reduce the effort consumed in driving the test needle guide platform 242 to move, thereby improving the user experience and efficiency of use.

[0069] Furthermore, a plurality of metal probes 246A are arranged on the bottom surface of the test needle 246, a test socket 246B is arranged on the top surface of the test needle 246, and the metal probes 246A and the test socket 246B are electrically connected;

[0070] The upper surface of the bottom box 210 is provided with a signal input socket 211, and the side surface 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;

[0071] The test socket 246B and the signal input socket 211 are connected via a data line;

[0072] The encryption head placement seat 220 is electrically connected to the signal output socket 212 .

[0073] During specific operation, the test needle guide platform 242 moves downward, and the metal probe 246A contacts the gold finger of the encryption head, and obtains the conduction information and insulation information of the head at one end of the gold finger. The metal probe 246A sends the obtained 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, and the signal input socket 211 transmits the head information to the signal output socket 212. The integrated tester 100 is connected to the signal output socket 212, and the integrated tester 100 obtains the head information and then performs detection; at the same time, the encryption head placement seat 220 can obtain the information of the encryption head shell and send it to the signal output socket 212 to transmit to the integrated tester 100, so as to detect the insulation and grounding of the encryption head.

[0074] Furthermore, the encryption head placement seat 220 specifically includes:

[0075] A bottom plate 221, wherein the bottom plate 221 is disposed on the upper surface of the bottom box 210;

[0076] Two supporting columns 222 are vertically arranged on the bottom plate 221 , the supporting columns 222 are made of metal, and the bottom ends of the supporting columns 222 are electrically connected to the signal output socket 212 ;

[0077] A flexible circuit board placement seat 223 is further disposed on one side of the encryption magnetic head placement seat 220 , and the flexible circuit board placement seat 223 is directly opposite to the position of the test needle 246 .

[0078] During specific operation, the head body of the encryption head is placed on two supporting columns 222, and a metal probe (not shown in the figure) for contacting the magnetic track of the encryption head is arranged on the bottom plate 221, and the metal probe is electrically connected to the signal output socket 212, and a groove for placing the flexible circuit board is arranged on the flexible circuit board placement seat 223, and the shape of the groove is adapted to the shape of the flexible circuit board. During actual operation, the metal probe 246A obtains the data of the gold finger and sends it to the comprehensive tester 100, the supporting column 222 obtains the data of the head body shell and sends it to the comprehensive tester 100, and the metal probe obtains the signal of the magnetic track and sends it to the comprehensive tester 100; the comprehensive tester 100 tests the data obtained by the metal probe 246A for detecting the conductivity of the encryption head; the comprehensive tester 100 tests the data obtained by the metal probe 246A and the data obtained by the supporting column 222 to see whether there is current conduction between the two, thereby detecting the insulation of the encryption head; the comprehensive tester 100 tests the data obtained by the metal probe 246A and the data obtained by the metal probe to detect whether the encryption head is grounded.

[0079] Furthermore, a replaceable substrate 300 is disposed between the encryption head placement seat 220 and the bottom box 210 .

[0080] Furthermore, a plurality of test needle installation slots 242A are provided on the test needle guide platform 242 , and the test needles 246 are installed in the test needle installation slots 242A.

[0081] In actual work, due to different customer customization requirements, the shapes of the head body and the flexible circuit board and the relative positions of the two will be different. In order to facilitate the detection of encryption heads of different specifications, a replaceable substrate 300 is arranged between the encryption head placement seat 220 and the bottom box 210. The encryption head placement seat 220 is fixedly connected to the replaceable substrate 300. A placement groove for placing the replaceable substrate 300 is arranged on the upper surface of the bottom box 210. The shape of the placement groove is adapted to the shape of the replaceable substrate 300. When detecting encryption heads of different specifications, it is only necessary to replace the substrate to replace different encryption head placement seats 220 on the bottom box 210 to adapt to encryption heads of different specifications. At the same time, the test pin 246 is installed on the test pin installation slot 242A just above the encryption head to complete the debugging of the test fixture for encryption heads of different specifications.

[0082] Furthermore, the comprehensive tester 100 is provided with a socket 110, and the socket 110 is connected to the signal output socket 212 via a data line. The comprehensive tester 100 specifically includes:

[0083] A control computer (not shown in the figure), the control computer is electrically connected to the socket 110;

[0084] An insulation meter for detecting poor insulation between the encryption head and the flexible circuit board (not shown in the figure);

[0085] A continuity meter for detecting open and short circuits of encryption heads and flexible circuit boards (not shown in the figure);

[0086] A multimeter (not shown) for detecting the internal resistance of the encrypted magnetic head and poor grounding.

[0087] The insulation meter, continuity meter and multimeter are connected to the control computer respectively.

[0088] During specific operation, the insulation meter obtains the data obtained by the metal probe 246A and the data obtained by the supporting column 222, and determines the insulation condition of the encrypted magnetic head by detecting whether there is current conduction between the two, and obtains the insulation test result. If there is current conduction, the insulation is unqualified, and if no current passes, the insulation is qualified; the conductivity meter obtains the data obtained by the metal probe 246A and the conductivity test result, and obtains the conductivity test result by detecting whether there is current passing. If there is current passing, the conductivity is qualified, and if no current passes, the conductivity is unqualified; the multimeter obtains the data obtained by the metal probe 246A and the data obtained by the metal probe, detects whether the encrypted magnetic head is grounded, and obtains the grounding test result.

[0089] The insulation meter, continuity meter and multimeter send the insulation test results, continuity test results, head internal resistance results and grounding test results to the control computer respectively. The control computer outputs the results. If the above four indicators are all qualified, the output conclusion is good product. If there are unqualified indicators, the output is defective product, and the name and specific parameters of the unqualified indicators are displayed.

[0090] The present invention also provides a method for quickly detecting an encryption magnetic head as described in any one of the above, comprising the following steps:

[0091] S1, presetting the line sequence information, insulation resistance information, ground resistance information and internal resistance information of the encryption magnetic head of the flexible circuit board in the control computer as detection information, and storing it in the control computer;

[0092] S2, placing the encryption magnetic head to be tested on the encryption magnetic head placement seat, wherein the magnetic head body is placed on two supporting pillars, and at the same time, placing the flexible circuit board on the flexible circuit board placement seat;

[0093] S3, press down the fixture to push and pull the clamp so that the test needle contacts the gold finger on the flexible circuit board to obtain the magnetic head information, and the insulation meter, conductivity meter and multimeter respectively perform rapid detection on the encrypted magnetic head and send the measurement information to the control computer;

[0094] S4. After the control computer obtains the measurement information, it compares it with the detection information and outputs the test results.

[0095] During the specific work, in step S1, the detection information is pre-stored in the control computer. Since the flexible circuit board of the encryption head scrambles the line sequence of the wires leading out of the terminal to encrypt them, the encrypted line sequence needs to be input during the detection process, so that the line sequence is decrypted during the detection process. Only by accurately knowing which gold finger corresponds to which terminal can the conduction of each wire be accurately measured. Therefore, the line sequence information of the flexible circuit board needs to be pre-stored in the control computer; the metal shell of the encryption head plays a protective role and needs to be insulated so that the metal shell does not have current contact with the internal components to protect the safety of the equipment. During the specific detection, the gold finger and the metal shell are connected to form 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 it is judged to be unqualified in insulation, so it is necessary to set the insulation resistance information; in order to ensure the safety of the use of the magnetic head, it is also necessary to ensure that the encryption magnetic head is grounded. 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, the grounding is judged to be qualified, otherwise it is judged to be unqualified, so it is necessary to set the grounding resistance information;

[0096] Step S2 is the preparation stage for the detection work, in which the magnetic head body of the encryption magnetic head to be detected is placed on the encryption magnetic head placement seat, the metal shell is placed on two supporting columns, the magnetic track is in contact with the metal probe, and the flexible circuit board is placed on the flexible circuit board placement seat;

[0097] In step S3, the inspection work officially begins. The clamp is pushed down to push and pull 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. The insulation meter, continuity meter and multimeter start working. The insulation meter uses the metal probe as the positive pole and the supporting column as the negative pole to output voltage to the encryption head, detect the resistance value of the encryption head, and send the insulation inspection result to the control computer; the continuity meter transmits current to the metal probe to determine the conductivity of the wire, and sends the conductivity inspection result to the control computer; the multimeter uses the metal probe as the positive pole and the metal probe as the negative pole to output voltage to the encryption head, detect the resistance value of the encryption head, and send the grounding inspection result to the control computer; the above insulation inspection results, continuity inspection results and grounding inspection results are collectively referred to as measurement information.

[0098] Step S4 is the result output step. 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 is combined with the conduction detection result to determine whether the conductivity meets the requirements; the grounding resistance information is compared with the grounding detection result to determine whether it is grounded; at the same time, the encrypted head internal resistance information is determined; if the above four judgment results all meet the standards, the output result is a good product. If any of the above four judgment results do not meet the standards, the output result is a defective product, and the unqualified items and parameters are displayed.

[0099] In actual work, the encryption head rapid detection device and method provided by the present invention are relatively simple to use and are divided into the following steps:

[0100] The equipment debugging steps are as follows: according to the actual specifications of the encryption head to be tested, replace the appropriate replaceable substrate, install the test pin, connect the test pin and the bottom box via a data cable, and complete the installation and debugging of the test fixture; pre-store the test information in the control computer, complete the debugging of the comprehensive tester, connect the signal output socket and the socket via a data cable, realize the connection between the comprehensive tester and the test fixture, and complete the equipment debugging.

[0101] The test steps are as follows: pull down the clamp and push-pull the clamp. The clamp contacts the encryption head and obtains the head information. The comprehensive tester tests the four indicators of insulation, conduction, local short circuit and grounding of the encryption head and obtains the output result. The user lifts the clamp and push-pull the clamp to take out the encryption head and completes the test steps.

[0102] The present invention provides a device and method for rapid detection of encrypted magnetic heads. The device for rapid detection of encrypted magnetic heads includes a comprehensive tester for detecting magnetic heads and a detection fixture connected to the comprehensive tester for obtaining magnetic head information; the detection fixture specifically includes: a bottom box, an encrypted magnetic head placement seat is arranged on the upper surface of the bottom box; a test fixture base is vertically arranged above the bottom box, and a fixture push-pull clamp for obtaining magnetic head data is arranged on the test fixture base; the fixture push-pull clamp is arranged above the encrypted magnetic head placement seat. The method for rapid detection of encrypted magnetic heads includes the following steps: A. presetting the detection information of the encrypted magnetic head in the control computer; B. using the detection fixture to obtain the magnetic head information; C. the comprehensive tester receives the magnetic head information and measures the measurement information of the encrypted magnetic head and sends it to the control computer; D. the control computer obtains the measurement information and compares it with the detection information, and outputs the result. Thus, the present invention can perform efficient and rapid detection of the encrypted magnetic head.

[0103] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A fast detection device for an encryption magnetic head, characterized in that: It includes a comprehensive tester for quickly testing encryption magnetic heads and a testing fixture connected to the comprehensive tester for obtaining encryption magnetic head information; Wherein, the detection fixture specifically includes: A bottom box, an upper surface of which is provided with an encryption magnetic head placement seat; A test fixture base vertically arranged above the bottom box, the test fixture base being provided with a fixture push-pull clamp for acquiring magnetic head data; The clamp push-pull clamp is arranged above the encrypted magnetic head placement seat; The clamp push-pull clamp specifically comprises: An optical axis fixing plate fixedly arranged on the test fixture base, wherein the optical axis fixing plate is parallel to the bottom box; A test needle guide platform is arranged below the optical axis fixing plate, and the test needle guide platform is connected to the optical axis fixing plate through a linear bearing; A push-pull gate disposed above the optical axis fixing plate for driving the test needle guide platform to move up and down, the push-pull gate being connected to the test needle guide platform via a connecting column; The test needle guide platform is provided with a test needle for acquiring magnetic head data; The push-pull gate specifically comprises: a mounting plate disposed on the test fixture base; A push-pull rod is arranged on the mounting plate, and the push-pull rod is connected to the mounting plate through a rotating shaft; a connecting column is arranged on the push-pull rod, and the upper end of the connecting column is connected to the push-pull rod, and the lower end is connected to the test needle guide platform; The connecting column specifically includes a column body and two mounting wings arranged at the top of the column body, the column body and the two mounting wings are in a Y-shaped structure, each of the two mounting wings is provided with a screw hole, the push-pull rod is provided with a through hole, and the push-pull rod is also provided with a connecting shaft passing through the through hole, and is respectively connected and fixed to the screw holes at both ends; The shape of the optical axis fixing plate is semicircular, and its two ends are connected to the test fixture base to form a through hole, and the connecting column passes through the through hole to be connected to the test needle guide platform; a plurality of metal probes are arranged on the bottom surface of the test needle, and a test socket is arranged on the top surface of the test needle, and the metal probes and the test socket are electrically connected; a signal input socket is arranged on the upper surface of the bottom box, and a signal output socket is arranged on the side of the bottom box, and the signal input socket is electrically connected to the signal output socket; the test socket and the signal input socket are connected through a data line; the encryption head placement seat is electrically connected to the signal output socket; a bottom plate, the bottom plate is arranged on the upper surface of the bottom box; two supporting columns are vertically arranged on the bottom plate, the material of the supporting columns is metal, and the bottom end of the supporting column is electrically connected to the signal output socket; a flexible circuit board placement seat is also arranged on one side of the encryption head placement seat, and the flexible circuit board placement seat is directly opposite to the position of the test needle; a replaceable substrate is arranged between the encryption head placement seat and the bottom box; The linear bearings are arranged on the three corners of the test needle guide platform. After the connecting column passes through the through hole, the connecting column is connected to the center of the test needle guide platform. When the connecting column drives the test needle guide platform to move downward, the connecting column is located in the center of the test needle guide platform. When the connecting column applies force, the three linear bearings are evenly stressed and correctly guide the test needle guide platform to move directly downward.

2. The encryption head rapid detection device according to claim 1, characterized in that: The comprehensive tester is provided with a socket, and the socket is connected to the signal output socket through a data line. The comprehensive tester specifically includes: A control computer, the control computer being electrically connected to the socket; Insulation meter for detecting poor insulation of encryption heads and flexible circuit boards; Continuity meter for detecting open and short circuits of encryption heads and flexible circuit boards; A multimeter for detecting local short circuits and poor grounding of encryption heads; The insulation meter, continuity meter and multimeter are connected to the control computer respectively.

3. A fast detection method for an encryption magnetic head according to any one of claims 1 to 2, characterized in that: The following steps are involved: A. Preset the line sequence information, insulation resistance information, ground resistance information and internal resistance information of the encryption magnetic head in the control computer as the detection information and store them in the control computer; B. Place the encryption magnetic head to be tested on the encryption magnetic head placement seat, wherein the magnetic head body is placed on two supporting pillars, and at the same time, place the flexible circuit board on the flexible circuit board placement seat; C. Press down the fixture and push and pull the clamp to make the test needle contact the gold finger on the flexible circuit board to obtain the head information. The insulation meter, conductivity meter and multimeter will test the encrypted head respectively and send the measurement information to the control computer; D. The control computer obtains the measurement information, compares it with the detection information, and outputs the test results.

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