A magnetic head production testing apparatus

Abstract

The application relates to a magnetic head production testing device, which comprises a rack, a conveying belt arranged on the rack, a plurality of groups of testing units uniformly arranged on the end face of the conveying belt, and any two adjacent groups of testing units being staggered in front and back, a fixing mechanism arranged above the rack and capable of swinging up and down and containing the magnetic head, a shielding mechanism arranged on the fixing mechanism and capable of moving up and down, and a wiring row arranged outside the fixing mechanism, wherein the corresponding magnetic head is electrically connected through the wiring row, and the control equipment for displaying the reading information of the magnetic head is electrically connected. The application can simulate the testing effect under various conditions and ensure the continuity of work.

Description

Technical Field

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

[0002] After assembly, the magnetic 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 magnetic head testing mainly includes noise testing and performance testing. Performance testing primarily assesses the read sensitivity and accuracy of the magnetic head. To test the performance of the magnetic head, it's generally necessary to simulate real-world application scenarios.

[0003] Specifically, a magnetic head testing fixture applicable to multiple types of magnetic heads, as described in patent number CN112542182B, involves moving the slide, frame, and internal magnetic heads along a conveyor belt while testing head performance. This requires manual removal of the corresponding slide, frame, and other components after the first set of heads has been tested and moved to one side of the frame. The components are then placed on the other side of the frame, at the starting point of each set of test heads, before a new head is placed. This process ensures continuity of testing, but it increases labor intensity due to its time-consuming and labor-intensive nature, placing high demands on the worker. These factors contribute to the inability to effectively test the stability and performance limits of the magnetic heads. Furthermore, the inability to adjust the state of the magnetic heads and strips to simulate actual operating conditions results in this solution being unable to effectively test the stability and performance limits of the magnetic heads. Summary of the Invention

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

[0005] The technical problem of this invention is mainly solved by the following technical solution:

[0006] A magnetic head production testing apparatus includes a frame:

[0007] The frame is equipped with a conveyor belt, on which multiple sets of test units are evenly arranged on the end face of the conveyor belt, and any two adjacent sets of test units are staggered. A fixing mechanism that can swing up and down is also provided above the frame, and a shielding mechanism that can move up and down is provided on the fixing mechanism.

[0008] The test unit includes a support plate for fixing the magnetic strip, wherein the support plate is connected to the end face of the conveyor belt by a spring I, and one end of the support plate is provided with an arc-shaped extrusion part;

[0009] The fixing mechanism includes a mounting plate mounted on a frame, with a fixing plate between two sets of mounting plates and extension plates at both ends of the fixing plate. A connecting plate connected to the mounting plate is provided above the extension plate, and the connecting plate and the extension plate are connected by a spring II. The mounting plate also has a vertical sliding opening corresponding to the extension plate. The extension plate has a protrusion passing through the corresponding sliding opening, and the protrusion is connected to a vertical rack on the outside of the mounting plate. A disc located on one side of the rack is provided on the outside of the frame, and a portion of the outer wall of the disc has teeth that can mesh with the rack. The frame is provided with a drive shaft connecting the two sets of discs, and the drive shaft is driven by a drive mechanism. The fixing plate has a receiving groove for accommodating the magnetic head, and a reading opening is provided in the middle area at the bottom of the receiving groove. A vacuum chamber connected to a vacuum pump via a pipe is also arranged around the side wall of the receiving groove.

[0010] The shielding mechanism includes a rectangular frame located above the fixed plate, wherein the rectangular frame is supported and suspended by an electric push rod, and a shielding plate located between two adjacent test units is provided in the opening of the rectangular frame. The fixed plate has a strip opening for accommodating the corresponding shielding plate to pass through, wherein the bottom end of the shielding plate is located directly above the end of the extrusion part in the corresponding test unit.

[0011] A terminal block is provided on the outside of the fixing mechanism, 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.

[0012] Preferably, a rectangular notch is provided at the middle of the top of the mounting plate, wherein the bottom of the notch is higher than the horizontal plane of the top of the fixing plate, and the pipe extends out from the notch.

[0013] Preferably, the rectangular frame is located above the sliding opening and the connecting plate, wherein the connecting plate is located above the sliding opening.

[0014] Preferably, the mounting plate has a protrusion on its outer side located above the sliding opening, wherein the protrusion has a limiting opening for the rack to pass through.

[0015] Preferably, a rubber buffer block is provided at the bottom of the sliding opening.

[0016] The beneficial effects of this invention are as follows: This invention uses a conveyor belt to transport several test units one by one to a position directly below the magnetic head, allowing each magnetic strip within the test unit to be read and detected individually by a set of magnetic heads. This process identifies the information from the magnetic strips within the test unit. As the conveyor belt moves, the magnetic strips are positioned directly below any set of magnetic heads, ensuring the magnetic head identifies information from different magnetic strips during their movement and maintaining the continuity of the testing process. Furthermore, the oscillating magnetic strips and vibrating magnetic head simulate potential instability in actual operation, verifying the magnetic head's ability to function properly and read information smoothly. During testing, the varying distances between the magnetic strips and the magnetic head result in different reading positions, and the different states of the magnetic strips or heads allow for the testing of the magnetic head's performance limits. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 yes Figure 1 A sectional view;

[0019] Figure 3 This is a top view of the rectangular frame in this invention;

[0020] Figure 4 yes Figure 1 A cross-sectional view from the left view;

[0021] Figure 5 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 6 yes Figure 2 Enlarged view of point B in the middle.

[0023] In the diagram: 1. Frame, 2. Conveyor belt, 3. Test unit, 31. Support plate, 32. Magnetic strip, 33. Spring I, 34. Extrusion section, 4. Fixing mechanism, 41. Mounting plate, 42. Fixing plate, 43. Extension plate, 44. Connecting plate, 45. Spring II, 46. Sliding opening, 47. Protrusion, 48. Rack, 49. Disc, 410. Tooth, 411. Drive shaft, 412. Drive mechanism, 413. Receiving groove, 414. Magnetic head, 415. Reading opening, 416. Vacuum chamber, 417. Pipe, 5. Shielding mechanism, 51. Rectangular frame, 52. Electric push rod, 53. Shielding plate, 6. Strip opening, 7. Notch, 8. Boss. Implementation

[0024] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] A magnetic head production testing device includes a frame 1:

[0026] The frame 1 is provided with a conveyor belt 2, and multiple sets of test units 3 are evenly arranged on the end face of the conveyor belt 2. Any two adjacent sets of test units 3 are staggered. The frame 1 is also provided with a fixing mechanism 4 that can swing up and down, and a shielding mechanism 5 that can move up and down is provided on the fixing mechanism 4.

[0027] The test unit 3 includes a support plate 31 for fixing the magnetic strip 32, wherein the support plate 31 is connected to the end face of the conveyor belt 2 by a spring I33, and one end of the support plate 31 is provided with an arc-shaped extrusion part 34.

[0028] The fixing mechanism 4 includes a mounting plate 41 mounted on the frame 1, wherein a fixing plate 42 is provided between two sets of mounting plates 41, and extension plates 43 are provided at both ends of the fixing plate 42. A connecting plate 44 connected to the mounting plate 41 is provided above the extension plate 43, wherein the connecting plate 44 and the extension plate 43 are connected by a spring II 45, and the mounting plate 41 is also provided with a vertical sliding opening 46 corresponding to the extension plate 43, wherein a rubber buffer block is provided at the bottom of the sliding opening 46, and a protrusion 47 passing through the corresponding sliding opening 46 is provided on the extension plate 43, wherein the protrusion 47 is connected to the outer side of the mounting plate 41. The vertical rack 48 is connected, and a disk 49 located on one side of the rack 48 is provided on the outer side of the frame 1. A portion of the outer wall of the disk 49 is also provided with teeth 410 that can mesh with the rack 48. The frame 1 is provided with a drive shaft 411 that connects the two corresponding disks 49. The drive shaft 411 is driven by a drive mechanism 412. The fixed plate 42 is provided with a receiving groove 413 for accommodating the magnetic head 414. A reading opening 415 is provided in the middle area at the bottom of the receiving groove 413. A vacuum chamber 416 connected to the vacuum pump by a pipe 417 is also provided around the side wall of the receiving groove 413.

[0029] The shielding mechanism 5 includes a rectangular frame 51 located above the fixed plate 42, wherein the rectangular frame 51 is supported and suspended by an electric push rod 52, and a shielding plate 53 located between two adjacent test units 3 is provided in the opening of the rectangular frame 51. The fixed plate 52 has a strip opening 6 for accommodating the corresponding shielding plate 53 to pass through, wherein the bottom end of the shielding plate 53 is located directly above the end of the extrusion part 34 in the corresponding test unit 3.

[0030] A terminal block is provided on the outside of the fixing mechanism 4, through which the corresponding magnetic head 414 is electrically connected, and the terminal block is also electrically connected to a control device that can display the magnetic head reading information.

[0031] In this embodiment, a rectangular notch 7 is provided at the top center of the mounting plate 41, wherein the bottom of the notch 7 is higher than the top horizontal plane of the fixing plate 42, and the pipe 417 extends out through the notch 7. The notch 7 reduces the amount of material used in the mounting plate 41, and also facilitates the removal and placement of the magnetic head 414 in the receiving slot 413 through the notch 7.

[0032] In this embodiment, the rectangular frame 51 is located above the sliding opening 46 and the connecting plate 44, wherein the connecting plate 44 is located above the sliding opening 46.

[0033] In this embodiment, a protrusion 8 is provided on the outside of the mounting plate 41 above the sliding opening 46, wherein the protrusion 8 has a limiting opening for the rack 48 to pass through. When the rack 48 moves up and down, it will slide within the limiting opening, so that it can limit the upper part of the rack 48 and prevent it from swinging during movement.

[0034] The working principle of this invention is as follows: In use, the magnetic head 414 is placed in the receiving groove 413 through the notch 7. Then, the vacuum chamber 416 is evacuated by a vacuum pump to adsorb and fix the magnetic head 414 in the receiving groove 413, preventing it from sliding out of the receiving groove 413 due to the vibration of the fixing plate 42. When the vacuum pump is turned off, the magnetic head 414 can be easily removed from the receiving groove 413. Then, the wiring of the magnetic head 414 is inserted into the terminal block, and the terminal block is connected to the control device.

[0035] The conveyor belt 2 moves the test unit 3 above it in a stepping motion until it stops working directly below a magnetic head 414. Then, the electric push rod 52 drives the rectangular frame 51 to move the shielding plate 53 downward within the strip opening 6, thereby separating the two adjacent test units 3 to shield the magnetic strips 32 in the two test units 3. This prevents the magnetic head 414 located directly above the test unit 3 from reading the information in the magnetic strips 32 of other test units 3, thus avoiding the problem of information interference between the magnetic strips 32 in the two adjacent test units 3 and ensuring the accuracy of the read information.

[0036] During the above process, when the shielding plate 53 moves down, it will contact the top of the end of the corresponding pressing part 34 and press it, causing the support plate 31 to tilt up with the spring I33 as the fulcrum. Then, when the position of the support plate 31 and the pressing part 34 changes, it will not block the shielding plate 53 from extending between the two sets of test units 3. At this time, when the support plate 31 and other components are tilted, they will press the spring I33 to make it contract and expand, which will eventually cause the state of the magnetic strip 32 on the support plate 31 to change, so that it swings and tilts.

[0037] Furthermore, the drive mechanism 412 drives the rotating shaft 411 to rotate the disk 46 and the teeth 410 on part of its outer wall. When the teeth 410 mesh with the rack 48 and continue to rotate, it will drive the rack 48 to move upward, thereby driving the protrusion 47 to move upward in the sliding opening 46, thereby driving the extension plate 43 and the fixing plate 42 to move the magnetic head 414 upward, and at the same time compressing the spring II 45. When the teeth 410 separate from the rack 48 and lose their support, the spring II 45 extends and drives the extension plate 43 and the fixing plate 42 to move the magnetic head 414 downward to achieve vibration, and also drives the rack 48 and other components to move downward.

[0038] This allows for the simulation of potential instability during actual operation through the swinging magnetic strip 32 and vibrating magnetic head 414, verifying whether the magnetic head 414 can function properly and read information smoothly. Furthermore, the varying distances between the magnetic strip 32 and the magnetic head 414 during testing, along with the different reading positions and states of the magnetic strip 32 or magnetic head 414, allow for the testing of the performance limits of the magnetic head 414.

[0039] Next, the shielding mechanism 5 resets, and the conveyor belt 2 drives the test unit 3 to continue moving, allowing each unit to be read and tested one by one by a set of magnetic heads 414. This process is repeated to identify information from the magnetic strips 32 within the test unit 3. During the stepping movement of the conveyor belt 2, several magnetic strips 32 will stop directly below any set of magnetic heads 414, allowing the magnetic heads 414 to identify information from different magnetic strips 32 as they move. This identified information is then transmitted to the control device, which in this embodiment is a laptop computer with developed testing software. The testing software compares the information read by the magnetic heads with the stored standard information. If they match, the reading is correct; otherwise, it is incorrect, and the result is displayed.

[0040] 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 magnetic head production testing device, comprising a frame, characterized in that: a conveying belt is arranged on the frame, wherein a plurality of testing units are evenly arranged on the end face of the conveying belt, and any two adjacent testing units are staggered front and back, and a fixing mechanism capable of swinging up and down is further arranged above the frame, wherein a shielding mechanism capable of moving up and down is arranged on the fixing mechanism; the testing unit comprises a support plate for fixing a magnetic stripe, wherein the support plate is connected with the end face of the conveying belt through a spring I, and an arc-shaped extrusion part is arranged at one end of the support plate; the fixing mechanism comprises a mounting plate arranged on the frame, wherein a fixed plate is arranged between the two mounting plates, and an extension plate is arranged at both ends of the fixed plate, a connecting plate connected with the mounting plate is arranged above the extension plate, wherein the connecting plate is connected with the extension plate through a spring II, and a sliding opening corresponding to the extension plate is further vertically arranged on the mounting plate, a protrusion penetrating through the corresponding sliding opening is arranged on the extension plate, wherein the protrusion is connected with a vertical rack outside the mounting plate, and a disc is arranged on one side of the rack outside the frame, and a tooth is further arranged on part of the outer wall of the disc, which can engage with the rack, a drive shaft connecting the corresponding two discs is arranged on the frame, wherein the drive shaft is driven by a driving mechanism, a containing groove containing the magnetic head is arranged on the fixed plate, wherein a reading opening is arranged at the middle area of the bottom of the containing groove, and a ring of vacuum cavities connected with a vacuum pump through a pipeline is further arranged around the side wall of the containing groove; the shielding mechanism comprises a rectangular frame above the fixed plate, wherein the rectangular frame is supported and suspended by an electric push rod, and a shielding plate is arranged in the opening of the rectangular frame and located between the adjacent two testing units, a strip-shaped opening for accommodating the corresponding shielding plate penetrating through is arranged on the fixed plate, wherein the bottom end of the shielding plate is located directly above the end of the extrusion part in the corresponding testing unit; a wiring strip is arranged outside the fixing mechanism, wherein the corresponding magnetic head is electrically connected through the wiring strip, and the wiring strip is electrically connected with a control device capable of displaying the reading information of the magnetic head.

2. The magnetic head production test apparatus according to claim 1, wherein: a rectangular notch is arranged at the middle of the top of the mounting plate, wherein the bottom of the notch is higher than the top end horizontal plane of the fixed plate, and the pipeline passes through the notch.

3. The magnetic head production test apparatus according to claim 1, wherein: the rectangular frame is located above the sliding opening and the connecting plate, wherein the connecting plate is located above the sliding opening.

4. The magnetic head production test apparatus as claimed in claim 1, wherein: a convex seat is arranged above the sliding opening outside the mounting plate, wherein a limiting opening for the rack to penetrate through is arranged on the convex seat.

5. The magnetic head production test apparatus as claimed in claim 1, wherein: a rubber buffer block is arranged in the bottom of the sliding opening.

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