Testing device for magnetic head processing

Abstract

The invention relates to a testing device for magnetic head processing, which comprises a base, an arc-shaped opening I is formed in the base, a bottom plate driven by a motor I is arranged at the bottom of the base, a jig is arranged on the bottom plate in the arc-shaped opening I, a discharging mechanism is arranged at one end of the arc-shaped opening I, and a testing mechanism is further arranged at the top of the base. The testing mechanism comprises a shell capable of moving up and down, mounting plates located over the arc-shaped openings I are evenly and movably arranged at the top in the shell, magnetic strips are arranged at the bottoms of the mounting plates, N-pole magnetic blocks are arranged on one sides of the tops of the mounting plates, arc-shaped openings II corresponding to the N-pole magnetic blocks are formed in the top wall of the shell, and the arc-shaped openings II correspond to the N-pole magnetic blocks. An arc-shaped rack is arranged at the top of the arc-shaped opening II, a gear driven by a motor II is arranged on the rack, a magnetic plate located in the arc-shaped opening II is further arranged at the bottom of the rack, and the magnetic plate is composed of an N-pole magnetic plate and an S-pole magnetic plate. According to the invention, test environments in different states can be simulated, so that the test effect is improved.

Description

Technical Field

[0001] This invention relates to the field of magnetic head processing, and in particular to a testing device for magnetic head processing. Background Technology

[0002] After assembly, the read / write head needs to be tested before it can be used. Otherwise, if a problem is discovered when it's used in a terminal device, it will already be a quality issue. Current read / write head testing mainly includes noise testing and performance testing. Performance testing primarily assesses the head's reading sensitivity and accuracy. To test head performance, real-world application scenarios are typically simulated.

[0003] Specifically, a magnetic head testing fixture with patent number CN115171739B, while addressing the shortcomings of existing magnetic head testing, still has the following drawbacks: it requires several motors to operate to change the orientation of the magnetic strip, which increases its production cost. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device for magnetic head processing.

[0005] The technical problem of this invention is mainly solved by the following technical solution: A testing device for magnetic head processing includes a base suspended by legs, an arc-shaped opening I on the base, a base plate sealing the arc-shaped opening I at the bottom of the base, the base plate being driven by a motor I, and fixtures for fixing the magnetic head evenly arranged within the arc-shaped opening I at the top of the base plate. A material unloading mechanism is provided at one end of the arc-shaped opening I. A testing mechanism is also provided at the top of the base. The testing mechanism includes an L-shaped housing that can move up and down. A mounting plate is evenly and movably arranged at the top of the housing, positioned directly above the arc-shaped opening I. A magnetic strip is provided at the bottom of the mounting plate, and an N-pole magnetic block is provided on one side of the top of the mounting plate. An arc-shaped opening II corresponding to the N-pole magnetic block is provided on the top wall of the housing. An arc-shaped rack is provided at the top of the arc-shaped opening II, and a gear driven by the motor II is provided on the rack. A magnetic plate, composed of an N-pole magnetic plate and an S-pole magnetic plate, is also provided at the bottom of the rack within the arc-shaped opening II.

[0006] Preferably, the housing has an inverted L-shaped cross-section, an installation channel is provided on the vertical side wall of the housing, a T-shaped rod is provided above the housing that passes through the installation channel and connects to the top of the base, a spring is sleeved on the T-shaped rod below the housing, and a vibration motor is also provided on the top of the housing.

[0007] Preferably, each of the base plates on both sides of the fixture is provided with a strip baffle located within the arc-shaped opening I, the top of the baffle being higher than the horizontal plane of the top of the fixture, and the bottom of the base is provided with a connecting opening connecting the two ends of the arc-shaped opening I, the top of the connecting opening being higher than the horizontal plane of the top of the baffle.

[0008] Preferably, the top of the housing is provided with an arc-shaped strip located outside the arc-shaped opening II, the inner sidewall of the arc-shaped strip is provided with a groove, the back of the rack is provided with a sliding plate located in the groove, and the gear teeth in the rack are provided on its inner arc wall.

[0009] Preferably, the unloading mechanism includes an installation notch located inside the arc-shaped opening I and an unloading notch located outside it. Both the installation notch and the unloading notch are located on the top of the base and communicate with the arc-shaped opening I. A push block driven by an electric push rod is provided inside the installation notch. A C-shaped plate covering the unloading notch is provided on the outside of the base. A rotating drum driven by a motor III is provided inside the C-shaped plate. The rotating drum is located in the middle between the two ends of the unloading notch. A guide plate is provided on the top of the rotating drum. Collection boxes located on both sides of the rotating drum are provided below the C-shaped plate.

[0010] Preferably, the bottom of the base plate is provided with a terminal block for the corresponding fixture, wherein the terminal block is electrically connected to the corresponding magnetic head, and the terminal block is electrically connected to a control device that can display the magnetic head reading information.

[0011] Preferably, the top of the housing is provided with mounting seats located on both sides of the mounting plate, wherein a rotating shaft embedded in the mounting seat is provided at the middle of the top of the mounting plate.

[0012] The beneficial effects of this invention are as follows: In this invention, the motor II drives the gear to rotate the rack clockwise and counterclockwise, so that the rack drives the magnetic plate to move in the same direction and at the same speed, thereby switching the positional relationship between the N-pole magnetic plate and the S-pole magnetic plate and the N-pole magnetic block in the magnetic plate. This indirectly drives the magnetic strips on multiple sets of mounting plates to swing, thereby reducing the amount of drive equipment required. By simulating the magnetic strips in different states in the above manner, it is possible to verify whether the magnetic head can work normally and read information smoothly. At the same time, the shaking of the housing indirectly changes the distance between the magnetic strip and the magnetic head directly below it, simulating the floating and uncertain distance between the two, in order to verify whether the magnetic head can work normally and read information smoothly, or whether the information is read completely. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the present invention after the casing has been removed; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a bottom view of the rack in this invention.

[0014] In the diagram: 1. Base, 2. Arc-shaped opening I, 3. Base plate, 4. Motor I, 5. Fixture, 6. Unloading mechanism, 61. Mounting notch, 62. Unloading notch, 63. Push block, 64. C-shaped plate, 65. Rotary drum, 66. Motor III, 67. Guide plate, 68. Collection box, 7. Testing mechanism, 71. Housing, 72. Mounting plate, 73. Magnetic strip, 74. N-pole magnetic block, 75. Arc-shaped opening II, 76. Rack, 77. Gear, 78. Motor, 79. N-pole magnetic plate, 710. S-pole magnetic plate, 8. T-shaped rod, 9. Spring, 10. Vibration motor, 11. Baffle, 12. Connecting opening, 13. Arc-shaped strip, 14. Slide groove, 15. Slide plate, 16. Mounting base, 17. Rotating shaft. Detailed Implementation

[0015] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] A testing device for magnetic head processing includes a base 1 suspended by legs, an arc-shaped opening I2 on the base 1, a base plate 3 at the bottom of the base 1 sealing the arc-shaped opening I2, the base plate 3 being driven by a motor I4, and fixtures 5 uniformly arranged on the top of the base plate 3 within the arc-shaped opening I2 for fixing the magnetic head. The base 1 is also provided with a testing mechanism 7 at its top. The testing mechanism 7 includes an L-shaped housing 71 that can move up and down. A mounting plate 72 is evenly and movably arranged at the top of the housing 71, located directly above the arc-shaped opening I2. Mounting seats 16 are provided on both sides of the mounting plate 72 at the top of the housing 71. A rotating shaft 17 is provided in the middle of the top of the mounting plate 72 and embedded in the mounting seat 16. A magnetic strip 73 is provided at the bottom of the mounting plate 72. An N-pole magnetic block 74 is provided on one side of the top of the mounting plate 72. An arc-shaped opening II 75 corresponding to the N-pole magnetic block 74 is provided on the top wall of the housing 71. An arc-shaped rack 76 is provided at the top of the arc-shaped opening II 75. A gear 77 driven by a motor II 78 is provided on the rack 76. A magnetic plate is also provided at the bottom of the rack 76, located in the arc-shaped opening II 75. The magnetic plate is composed of an N-pole magnetic plate 79 and an S-pole magnetic plate 710.

[0017] like Figure 3 As shown, the housing 71 has an inverted L-shaped cross-section. An installation channel is provided on the vertical side wall of the housing 71. A T-shaped rod 8 is provided above the housing 71, passing through the installation channel and connecting to the top of the base 1. A spring 9 is sleeved on the T-shaped rod 8 below the housing 71. A vibration motor 10 is also provided on the top of the housing 71.

[0018] In this embodiment, strip baffles 11 located in the arc-shaped opening I2 are provided on the bottom plates on both sides of the fixture 5. The top of the baffle 11 is higher than the horizontal plane of the top of the fixture 5. The bottom of the base 1 is provided with a connecting opening 12 connecting the two ends of the arc-shaped opening I2. The top of the connecting opening 12 is higher than the horizontal plane of the top of the baffle 11.

[0019] In this embodiment, the top of the housing 71 is provided with an arc-shaped strip 13 located outside the arc-shaped opening II 75. A groove 14 is provided on the inner sidewall of the arc-shaped strip 13. A sliding plate 15 located in the groove 14 is provided on the back of the rack 76. The gear teeth of the rack 76 are disposed on its inner arc wall. In this embodiment, the sliding plate 15 is locked by the groove 14 to prevent the rack 76 from moving up and down. At the same time, the rack 76 is horizontally limited and fixed by the gear 77 and the arc-shaped strip 13. When the gear 77 rotates, it can drive the rack 76 to slide clockwise and counterclockwise on the inner sidewall of the arc-shaped strip 13.

[0020] A discharge mechanism 6 is provided at one end of the arc-shaped opening I2. The discharge mechanism 6 includes an installation notch 61 located inside the arc-shaped opening I2 and a discharge notch 62 located outside it. Both the installation notch 61 and the discharge notch 62 are located on the top of the base 1 and are connected to the arc-shaped opening I2. A push block 63 driven by an electric push rod is provided inside the installation notch 61. A U-shaped plate 64 covering the discharge notch 63 is provided on the outside of the base 1. A rotating drum 65 driven by a motor III 66 is provided inside the U-shaped plate 64. The rotating drum 65 is located in the middle between the two ends of the discharge notch 62. A guide plate 67 is provided on the top of the rotating drum 65. A collection box 68 located on both sides of the rotating drum 65 is provided below the U-shaped plate 64.

[0021] In this embodiment, the bottom of the base plate 3 is provided with a terminal block corresponding to the fixture 5, wherein the terminal block is electrically connected to the corresponding magnetic head, and the terminal block is electrically connected to a control device that can display the magnetic head reading information.

[0022] In use, the magnetic head is placed in the fixture 5 upstream of the arc-shaped opening I2. Then, the motor I4 drives the base plate 3 to rotate at the bottom of the base 1. At the same time, the base plate 3 drives the baffle 11 and the fixture 5 to slide through the connecting notch 12, and drives the magnetic head to rotate within the arc-shaped opening I2. At this time, the magnetic head passes under multiple sets of magnetic strips 73 in the testing mechanism 7, so that the magnetic head can identify the information in different magnetic strips 73 during its movement under the magnetic strips 73, and transmit the identified information to the control device. In this embodiment, the control device is a laptop computer, and testing software has been developed. The testing software compares the information read by the magnetic head and determines whether the read information is the same as the stored standard information. If they are the same, the reading is correct; if they are different, the reading is incorrect, and the judgment result is displayed.

[0023] When the fixture 5 moves the magnetic head to the unloading mechanism 6, the electric push rod drives the push block 63 to slide out from the mounting notch 61 into the arc-shaped opening I2, and contact the rear wall of the magnetic head above the fixture 5. This pushes the magnetic head to tilt and slide out from the groove in the fixture 5, causing the magnetic head to fall into the unloading notch 62. Then it slides into the opening of the shaped plate 64 and flows into the corresponding collection box 68 along the top arc-shaped wall of the rotating drum 65. During the above process, a small part of the bottom end of the magnetic head is embedded in the fixture 5 for positioning. This position prevents the pusher block 63 from failing to properly push the magnetic head out of the fixture 5. At the same time, when a set of collection bins 68 is full, the motor III 66 drives the rotating drum 65 to rotate the guide plate 67, causing the guide plate 67 to tilt to seal the opening of the C-shaped plate 64 on one side of the rotating drum 65. At this time, the magnetic head flowing down from the unloading notch 62 is guided by the guide plate 67 to flow into the idle collection bin 68. During this process, the guide plate 67 can prevent the falling magnetic head from falling into the already full collection bin 68.

[0024] When the magnetic head flows under the test mechanism 7, the vibration motor 10 can be used to shake the housing 71, causing the mounting channel in the housing 71 to slide on the T-shaped rod 8 and compress the spring 9 to make it contract and expand, thereby achieving the purpose of shaking the housing 71 and indirectly changing the distance between the magnetic strip 73 and the magnetic head directly below it. This simulates the situation where the distance between the two is floating and uncertain, in order to verify whether the magnetic head can work normally and read information smoothly, or whether the information is read completely.

[0025] Simultaneously, when it is necessary to swing the magnetic strip 73 to simulate its position at different tilt angles, the test effect of the magnetic head is tested. At this time, only the motor II 78 drives the gear 77 to rotate. The gear 77 drives the rack 76 to rotate clockwise and counterclockwise above the housing 71. The rack 76 drives the slide plate 15 to slide in the slide groove 14. When the rack 76 moves, it will drive the magnetic plate to slide in the arc-shaped opening II 75. At this time, the magnetic plate moves above the corresponding N pole magnetic block 74 and the following three situations will occur: First, when the N pole magnetic plate 79 moves to directly above the N pole magnetic block 74, under the influence of like poles repulsion, the mounting plate 72 with the N pole magnetic block 74 is installed rotates counterclockwise around the rotating shaft 17 as the center, so as to affect the mounting plate 72 and its bottom. The magnetic strip 73 swings; secondly, when the S-pole magnetic plate 710 moves directly above the N-pole magnetic block 74, under the influence of opposite poles attracting each other, the mounting plate 72 with the N-pole magnetic block 74 installed rotates clockwise around the pivot 17, causing the mounting plate 72 and its bottom magnetic strip 73 to swing; thirdly, when the magnetic plate and the N-pole magnetic block 74 are completely misaligned, under the influence of the vibration of the housing 71, the mounting plate 72 will drive the pivot 17 to rotate on the mounting base 16, and the mounting plate 72 will drive the magnetic strip 73 to swing irregularly. In this way, the mounting plate 71 and the magnetic strip 73 are driven to swing clockwise and counterclockwise in the above three ways to simulate their different states, so as to verify whether the magnetic head can work normally and read information smoothly.

[0026] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A testing device for magnetic head processing, comprising a base suspended by legs, characterized in that: The base has an arc-shaped opening I, and a base plate that seals the arc-shaped opening I is provided at the bottom of the base. The base plate is driven by a motor I. The top of the base plate is uniformly provided with fixtures located inside the arc-shaped opening I for fixing the magnetic head. One end of the arc-shaped opening I is provided with a material unloading mechanism. The top of the base is also provided with a testing mechanism. The testing mechanism includes an L-shaped housing that can move up and down. The top of the housing is uniformly provided with a mounting plate located directly above the arc-shaped opening I. The bottom of the mounting plate is provided with a magnetic strip. One side of the top of the mounting plate is provided with an N-pole magnetic block. The top wall of the housing is provided with an arc-shaped opening II corresponding to the N-pole magnetic block. The top of the arc-shaped opening II is provided with an arc-shaped rack. The rack is provided with a gear driven by motor II. The bottom of the rack is also provided with a magnetic plate located inside the arc-shaped opening II. The magnetic plate is composed of an N-pole magnetic plate and an S-pole magnetic plate.

2. The testing device for magnetic head processing according to claim 1, characterized in that: The shell has an inverted L-shaped cross-section. An installation channel is provided on the vertical side wall of the shell. A T-shaped rod is provided above the shell, passing through the installation channel and connecting to the top of the base. A spring is sleeved on the T-shaped rod below the shell. A vibration motor is also provided on the top of the shell.

3. The testing device for magnetic head processing according to claim 1, characterized in that: Both sides of the fixture have a strip baffle located inside the arc-shaped opening I on the bottom plate. The top of the baffle is higher than the top horizontal plane of the fixture. The bottom of the base has a connecting opening that connects the two ends of the arc-shaped opening I. The top of the connecting opening is higher than the top horizontal plane of the baffle.

4. The testing device for magnetic head processing according to claim 1, characterized in that: The top of the housing is provided with an arc-shaped strip located outside the arc-shaped opening II. A groove is provided on the inner sidewall of the arc-shaped strip. A sliding plate located in the groove is provided on the back of the rack. The gear teeth in the rack are provided on its inner arc wall.

5. The testing device for magnetic head processing according to claim 1, characterized in that: The unloading mechanism includes an installation notch located inside the arc-shaped opening I and an unloading notch located outside it. Both the installation notch and the unloading notch are located on the top of the base and are connected to the arc-shaped opening I. A push block driven by an electric push rod is installed inside the installation notch. A C-shaped plate covering the unloading notch is installed on the outside of the base. A rotating drum driven by a motor III is installed inside the C-shaped plate. The rotating drum is located in the middle between the two ends of the unloading notch. A guide plate is installed on the top of the rotating drum. Collection boxes located on both sides of the rotating drum are installed below the C-shaped plate.

6. The testing device for magnetic head processing according to claim 1, characterized in that: The bottom of the base plate is provided with a terminal block for the corresponding fixture, through which the corresponding magnetic head is electrically connected, and the terminal block is also electrically connected to a control device that can display the magnetic head reading information.

7. The testing device for magnetic head processing according to claim 1, characterized in that: The top of the housing is provided with mounting seats on both sides of the mounting plate, and a rotating shaft embedded in the mounting seat is provided at the middle of the top of the mounting plate.

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