Double-rotation transfer test device

Abstract

A double-rotation transfer test device comprises two rotation transfer systems, a plurality of stations are configured in rotation paths of the rotation transfer systems, the double-rotation transfer test device further comprises a shooting translation mechanism, the plurality of stations comprise an electric test station and a visual test station, the two visual test stations share a shooting device, and the shooting translation mechanism is connected with the electric test station and the visual test station. The shooting device is arranged on the shooting translation mechanism and is used for switching between the two visual testing stations; according to the utility model, a plurality of stations can be executed in parallel, and the parallel test effectively improves the test production efficiency, which is improved by at least 50% compared with the single-station multifunctional serial test; the two rotary transfer systems execute the test at the same time, so that the production efficiency is further improved, and the production efficiency is improved by 100% compared with a single-rotary-disc multi-station parallel test; moreover, the two visual testing stations share the shooting device, and the shooting device is switched between the two visual testing stations, so that the electric testing time is twice the visual testing time, the station time is reasonably distributed, the camera utilization rate is more effectively improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of product testing, in particular to a double-rotation transfer testing device. Background Art

[0002] The hard disk head is a key component for reading and writing the disk in the hard disk, and is one of the most precise parts of the hard disk. The current test plan for hard disk head products is to test multiple products at the same station, which can only be tested in series, with a long test time and low utilization rate of relatively expensive equipment. Moreover, the test of hard disk heads generally includes potential test and visual point test. The current test plan takes the same time for these two tests, which is unreasonable in time allocation and low camera utilization rate. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a double-rotation transfer test device in view of the defects of the prior art such as long test time, unreasonable time allocation of test items and low camera utilization rate.

[0004] The technical solution adopted by the utility model to solve the technical problem is: construct a double rotary transfer test device, including two rotary transfer systems arranged side by side in a first horizontal direction, multiple stations are configured in the rotation path of the rotary transfer system for parallel testing, and the rotary transfer system is used to sequentially switch between the multiple stations by rotating the tested product;

[0005] The dual-rotation transfer testing device also includes a shooting and translation mechanism. The multiple workstations include an electrical testing station and a visual testing station. The visual testing stations of the two rotation transfer systems share a shooting device. The shooting device is arranged on the shooting and translation mechanism. The shooting and translation mechanism is used to drive the shooting device to switch between the visual testing stations of the two rotation transfer systems through translation.

[0006] Furthermore, in the dual-rotation transfer test device described in the utility model, the rotation transfer system includes a turntable, a plurality of carriers corresponding to the plurality of workstations, and a lifting and rotating mechanism, the carriers are facing upward for positioning and placing the tested products, the turntable is provided with a plurality of first carrier placement positions corresponding to the plurality of workstations, and the electrical test station and the visual test station both include a second carrier placement position;

[0007] The lifting and rotating mechanism is connected to the turntable, and is used for driving the turntable to rotate and lift between a low position and a high position; when the turntable is in a low position, the first carrier placement position is lower than the second carrier placement position, and the carrier is placed on the second carrier placement position; when the turntable is raised to a high position, the first carrier placement position is higher than the second carrier placement position, and the carrier is separated from the second carrier placement position and placed on the first carrier placement position.

[0008] Further, in the dual-rotation transfer test device described in the utility model, at least one transfer positioning pin / hole is provided at the first carrier placement position, and at least one transfer positioning hole / pin corresponding to the at least one transfer positioning pin / hole is provided on the carrier;

[0009] The second carrier placement position is provided with at least one station positioning pin / hole, and the carrier is provided with at least one station positioning hole / pin corresponding to the at least one station positioning pin / hole.

[0010] Furthermore, in the dual-rotation transfer testing device described in the present invention, the first carrier placement position is provided with an avoidance opening corresponding to the second carrier placement position, which is used to avoid the second carrier placement position for vertical movement after the turntable rotates to the point where the first carrier placement position is located above / below the second carrier placement position.

[0011] Furthermore, in the dual-rotation transfer test device described in the utility model, the lifting and rotating mechanism includes a motor, a driving wheel, a driven wheel, a synchronous belt, and a lifting divider. The driving wheel is coaxially connected to the motor, the synchronous belt is mounted outside the driving wheel and the driven wheel, the driven wheel is connected to the lifting divider to drive the lifting divider, and the lifting divider is connected to the bottom of the turntable to drive the turntable to lift and rotate.

[0012] Further, in the dual-rotation transfer test device described in the utility model, the electrical testing station includes a magnetizing device for applying a magnetic field, a magnetizing translation mechanism, a first pressing mechanism, and a first product connecting plate;

[0013] The first product connection plate is located on the second carrier placement position of the electrical testing station; the first pressing mechanism is located above the first product connection plate, and is used to press down the product under test on the carrier of the electrical testing station during electrical testing, so that the product under test is electrically connected to the first product connection plate;

[0014] The magnetizing device is located at a distance beside the first product connecting plate and is arranged on the magnetizing translation mechanism. The magnetizing translation mechanism is used to bring the magnetizing device close to the first product connecting plate to magnetize the product under test.

[0015] Further, in the dual-rotation transfer test device described in the utility model, the visual test station includes a second pressing mechanism and a second product connecting plate;

[0016] The second product connection plate is located on the second carrier placement position of the visual test station; the second pressing mechanism is located above the second product connection plate, and is used to press down the tested product on the carrier of the visual test station during the visual test, so that the tested product is electrically connected to the second product connection plate;

[0017] The visual testing stations of the two rotating transfer systems are arranged adjacent to each other in the first horizontal direction, the shooting device includes two cameras arranged opposite to each other in the second horizontal direction, the number of the shooting translation mechanisms is two, the two shooting translation mechanisms are spaced apart in the second horizontal direction and are respectively connected to one of the cameras, and the shooting translation mechanisms are used to drive the corresponding camera to move along the first horizontal direction.

[0018] Furthermore, in the dual-rotation transfer test device of the utility model, the plurality of workstations further include a loading and unloading workstation, the loading and unloading workstation, the electrical testing workstation and the visual testing workstation are sequentially distributed along the rotation direction of the rotation transfer system, and the loading and unloading workstation also includes a second carrier placement position;

[0019] The orientation of the second carrier placement position of the loading and unloading station relative to the rotation center of the rotary transfer system is opposite to the orientation of the second carrier placement position of other stations relative to the rotation center of the rotary transfer system;

[0020] The loading and unloading station includes a loading and unloading rotating mechanism, and the second carrier placement position of the loading and unloading station is arranged on the loading and unloading rotating mechanism. The loading and unloading rotating mechanism is used to rotate the second carrier placement position thereon to be consistent with the orientation of the second carrier placement position of other stations after loading and before unloading.

[0021] Furthermore, in the dual-rotation transfer testing device described in the present invention, the plurality of workstations also include a code scanning station, and the loading and unloading stations, code scanning stations, electrical testing stations, and visual testing stations are evenly spaced and arranged in a circle along the rotation direction of the rotation transfer system.

[0022] Furthermore, in the dual-rotation transfer testing device described in the present invention, the code scanning station includes a barcode gun, and the barcode gun is arranged above the turntable and faces the turntable.

[0023] The dual rotary transfer testing device of the present invention has the following beneficial effects: the present invention utilizes a rotary transfer system to carry the product to switch sequentially between multiple stations, and multiple stations are executed in parallel. Parallel testing effectively improves the test production efficiency, which is at least 50% higher than single-station multi-function serial testing; the present invention has two rotary transfer systems that perform tests simultaneously, further improving production efficiency, which is 100% higher than single-turntable multi-station parallel testing; and, the two visual test stations share a shooting device, which is switched between the two visual test stations with the shooting device through a shooting translation mechanism. In this way, the electrical test time is twice the visual test time, and the station time is reasonably allocated, which more effectively improves the camera utilization rate and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work:

[0025] Figure 1 This is a test principle diagram of the double-rotation transfer test device of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the double-rotation transfer test device of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the rotary transfer system;

[0028] Figure 4 It is the front view of the vehicle;

[0029] Figure 5 It is the bottom picture of the vehicle;

[0030] Figure 6 It is a structural diagram of the electrical measuring station;

[0031] Figure 7 It is a schematic diagram of the structure of the visual test. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings below. Typical embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0033] refer to Figure 1-2 The dual rotation transfer test device of this embodiment is arranged on a large base plate 6, and includes two rotation transfer systems arranged side by side in a first horizontal direction. The first horizontal direction mentioned herein can be understood as the left-right direction, and the second horizontal direction can be understood as the front-back direction.

[0034] A plurality of workstations are arranged in the rotation path of each of the rotary transfer systems. The rotary transfer system is used to sequentially switch between the plurality of workstations by rotating the tested product, and the tested product is a hard disk head. In this embodiment, the test items to be performed as needed mainly include four workstations, namely, a loading and unloading station 1, a code scanning station 2, an electrical test station 3, and a visual test station 4, which are sequentially distributed along the rotation direction of the rotary transfer system. These four workstations are evenly spaced and arranged in a circle. It is understandable that in other embodiments, the specific number of workstations and workstation functions can be designed according to the specific requirements of the test items. This embodiment is only an illustration and is not intended to limit the present utility model.

[0035] In this embodiment, the rotation directions of the two rotary transfer systems are opposite, the left rotary transfer system rotates clockwise, and the right rotary transfer system rotates counterclockwise. The four stations of the two rotary transfer systems are mirror-imaged relative to the centers of the two, and the visual test stations 4 of the two are arranged side by side in close proximity in the first horizontal direction. Of course, in other embodiments, the rotation directions of the two rotary transfer systems can also be designed to be consistent, in which case the positions of the other three stations of one of the rotary transfer systems (the visual test station 4 remains unchanged) need to be adjusted.

[0036] This embodiment does not simply design two rotary transfer systems for testing, but also designs two visual test stations 4 of the rotary transfer systems to share a shooting device 42. For example, the dual rotary transfer test device further includes a shooting translation mechanism 41, and the shooting translation mechanism 41 is used to drive the shooting device 42 to switch between the visual test stations 4 of the two rotary transfer systems through translation.

[0037] The four workstations of this embodiment are described in detail below.

[0038] refer to Figure 2 , 3 The rotary transfer system includes a turntable 51, four carriers 52 corresponding to the four workstations, and a lifting and rotating mechanism.

[0039] The carrier 52 faces upwards and is used to position and place the product to be tested. The hard disk head generally includes a support plate and a drive frame. Figure 4-5 , the carrier 52 includes a rectangular carrier base plate 521, and the top of the carrier base plate 521 is divided into two areas side by side in its length direction. A pallet positioning block 522 is stacked on the first area to position the pallet for placing the product under test. A side guard pin 525 protrudes between the first area and the second area on the carrier base plate 521, and the side guard pin 525 is located on one side of the pallet positioning block 522 to block the pallet of the product under test. A test hole that runs through the pallet positioning block 522 and the carrier base plate 521 is formed. The pallet of the product under test can be connected to the product connecting plate (such as Figure 6 , 7 The electrical test station 3 and the visual test station 4 are both equipped with electrical connections of the product connection plates 35 and 47. The second area on the top of the carrier bottom plate 521 is protruding with a main positioning pin 523 and a guide pin 524, which are used to locate the drive frame of the product under test. A tail clamp 526 is also provided on the side of the second area away from the pallet positioning block 522, which is used to clamp the drive frame of the product under test.

[0040] Continue to refer Figure 3 , the turntable 51 is provided with four first carrier placement positions 511 corresponding to the four stations. In this embodiment, the first carrier placement position 511 is specifically composed of a pair of strip arms protruding horizontally from the edge of the turntable 51. In this embodiment, the loading and unloading station 1, the electrical test station 3 and the visual test station 4 all include the second carrier placement position ( Figure 6 , 7The second carrier placement positions 37 and 46 of the electrical testing station 3 and the visual testing station 4 are shown in the figure. The code scanning station 2 may or may not have a second carrier placement position. Since the code scanning station 2 only needs to take pictures from above, there is no need to transfer the product from the turntable 51. In addition, in order to facilitate the placement of products, in this embodiment, the orientation of the second carrier placement position of the loading and unloading station 1 relative to the rotation center of the rotary transfer system is opposite to the orientation of the second carrier placement positions 37 and 46 of the other stations (electrical testing station 3 and visual testing station 4) relative to the rotation center of the rotary transfer system, that is, the orientation of the tested product when it is just loaded is inconsistent with the orientation in the test state. Therefore, after loading is completed, it is necessary to adjust the orientation of the second carrier placement position to be consistent with the other stations. For this reason, refer to Figure 2 The loading and unloading station 1 includes a loading and unloading rotating mechanism 11, which can be implemented by a rotary cylinder. The second carrier placement position of the loading and unloading station 1 is set on the loading and unloading rotating mechanism 11, and the loading and unloading rotating mechanism 11 is used to rotate the second carrier placement position thereon to be consistent with the orientation of the second carrier placement position of other stations after loading and before unloading, that is, consistent with the orientation of the second carrier placement positions 37 and 46 of the electrical testing station 3 and the visual testing station 4.

[0041] The barcode scanning station 2 includes a barcode gun 22, which is arranged above the turntable 51 and faces the turntable 51. For example, a bracket 21 can be installed beside the turntable 51, and the barcode gun 22 can be rotatably installed on the bracket 21. The direction of the barcode gun 22 is adjustable. Before the test, the direction of the barcode gun 22 needs to be adjusted so that the turntable 51 can be aligned with the barcode on the product when it brings the tested product to the barcode scanning station 2.

[0042] Continue to refer Figure 3 , the lifting and rotating mechanism is connected to the turntable 51, and is used to drive the turntable 51 to rotate and lift between a low position and a high position; when the turntable 51 is in a low position, the first carrier carrier placement position 511 is lower than the second carrier carrier placement position of all workstations, and the carrier 52 is placed on the second carrier carrier placement position of the workstation (for the code scanning workstation 2, if it is not provided with a second carrier carrier, the carrier 52 is still placed on the first carrier carrier placement position 511 of the turntable 51 when the turntable 51 is in a low position); when the turntable 51 is raised to a high position, the first carrier carrier placement position 511 is higher than the second carrier carrier placement position, and the carrier 52 is separated from the second carrier carrier placement position and placed on the first carrier carrier placement position 511.

[0043] Specifically, the first carrier placement position 511 is provided with two transfer positioning pins 512. For example, the end positions of a pair of bar arms of the turntable 51 are respectively convex to form transfer positioning pins 512, and the carrier 52 is provided with two transfer positioning holes 527 corresponding to the two transfer positioning pins 512. The second carrier placement position is provided with two station positioning pins, such as Figure 6 , 7 The workstation positioning pins 36 and 45 on the second carrier placement positions 37 and 46 of the electrical test station 3 and the visual test station 4 are shown in the figure. The positioning pins of the loading and unloading stations are not shown in the drawings of this embodiment. The carrier 52 is provided with two workstation positioning holes 528 corresponding to the two workstation positioning pins. Figure 4-5 , the two transfer positioning holes 527 and the two station positioning holes 528 all penetrate the carrier bottom plate 521, the two transfer positioning holes 527 are arranged near the centers of the two short sides of the carrier bottom plate 521, the two station positioning holes 528 are arranged near the centers of the two long sides of the carrier bottom plate 521, the two transfer positioning holes 527 are symmetrically distributed on both sides of the line connecting the two station positioning holes 528 and are located on the mid-vertical line of the two station positioning holes 528, and the two station positioning holes 528 are symmetrically distributed on both sides of the line connecting the two transfer positioning holes 527 and are located on the mid-vertical line of the two transfer positioning holes 527. Of course, it can be understood that these pins and holes can be interchanged, that is, positioning pins are arranged on the carrier 52, and positioning holes are arranged on the station and turntable 51. In addition, the number and position of the pins and holes can also be adjusted.

[0044] Because the first carrier carrier placement position 511 needs to switch between the state of being lower and higher than the second carrier carrier placement position, and because both are positioned and matched with the carrier 52 by means of holes and pins, and the lines connecting the positioning pins of the two are crossed, this means that the second carrier carrier placement position and the first carrier carrier placement position 511 overlap in the vertical direction. At the same time, because the vertical coverage of the first carrier carrier placement position 511 in this embodiment is larger than the vertical coverage of the second carrier carrier placement position, it is necessary to open a avoidance opening 510 corresponding to the second carrier carrier placement position in the first carrier carrier placement position 511, which is used to avoid the second carrier carrier placement position from moving vertically after the turntable 51 rotates to the point where the first carrier carrier placement position 511 is located above / below the second carrier carrier placement position. For example, the space between a pair of bar arms of the turntable 51 is the avoidance opening 510. In the present embodiment, because the second carrier placement positions 37 and 46 of the electrical measuring station 3 and the visual testing station 4 are provided by rectangular bosses, the second carrier placement position of the loading and unloading station 1 is provided by a rotary cylinder, and the radial dimension of the rotary cylinder is smaller than the short side dimension of the rectangular bosses of the electrical measuring station 3 and the visual testing station 4, all the avoidance openings 510 are designed with the goal of avoiding the rectangular bosses, and the avoidance openings 510 are roughly rectangular windows slightly larger than the outline of the rectangular bosses.

[0045] The lifting and rotating mechanism includes a motor 53, a driving wheel 55, a driven wheel 56, a synchronous belt 57, and a lifting divider 54. The motor 53, the driving wheel 55, the driven wheel 56, and the synchronous belt 57 are all located in the space below the large bottom plate 6, and the lifting divider 54 passes through the large bottom plate 6 without contact and is connected to the center of the turntable 51 located above the large bottom plate 6. The motor 53 is located beside the lifting divider 54, the driving wheel 55 is coaxially connected to the motor 53, the synchronous belt 57 is sleeved outside the driving wheel 55 and the driven wheel 56, the driven wheel 56 is connected to the lifting divider 54 to drive the lifting divider 54, and the lifting divider 54 is connected to the bottom of the turntable 51 to drive the turntable 51 to lift and rotate.

[0046] refer to Figure 6 The electrical measuring station 3 includes a magnetizing device 32 for applying a magnetic field, a magnetizing translation mechanism 31 , a first pressing mechanism 33 , and a first product connecting plate 35 .

[0047] The first product connection plate 35 is located on the second carrier placement position 37 of the electrical testing station 3 and is located beside the station positioning pin 36 of the electrical testing station 3. The first pressing mechanism 33 is located above the first product connection plate 35 and is used to press down the tested product on the carrier 52 of the electrical testing station 3 during electrical testing, so that the connector on the tested product support plate is electrically connected to the first product connection plate 35. Specifically, the first pressing mechanism 33 can be implemented by a pressing cylinder in combination with a pressing head 34.

[0048] The magnetizing device 32 is located at a distance beside the first product connecting plate 35 and is arranged on the magnetizing translation mechanism 31. The magnetizing translation mechanism 31 is used to bring the magnetizing device 32 close to the first product connecting plate 35 to magnetize the tested product. Specifically, the magnetizing translation mechanism 31 can adopt a translation cylinder.

[0049] refer to Figure 7 , the visual test station 4 includes a second pressing mechanism 43 and a second product connecting plate 47. The second product connecting plate 47 is located on the second carrier placement position 46 of the visual test station 4, and the visual test station 4 is located beside the station positioning pin 45. The second pressing mechanism 43 is located above the second product connecting plate 47, and is used to press down the tested product on the carrier 52 of the visual test station 4 during the visual test, so that the connector on the tested product pallet is electrically connected to the second product connecting plate 47. Specifically, the second pressing mechanism 43 can be implemented by a pressing cylinder in combination with a pressing head 44.

[0050] The shooting device 42 includes two cameras arranged opposite to each other in the second horizontal direction. The number of the shooting translation mechanism 41 is two, and specifically, the shooting translation mechanism 41 can adopt a translation cylinder. The two shooting translation mechanisms 41 are arranged in a spaced relationship in the second horizontal direction and are respectively connected to one of the cameras, and the shooting translation mechanism 41 is used to drive the corresponding camera to move along the first horizontal direction.

[0051] In this embodiment, the four stations run in parallel, so loading and unloading, taking photos, electrical testing, and visual testing can be performed simultaneously. When the turntable 51 rotates 90°, the product switches from one station to the next. The switching process is:

[0052] Before the rotation, the turntable 51 is in a low position. At this time, the turntable 51 is lower than the second carrier placement position, so the product carrier 52 is separated from the turntable 51, and the transfer positioning hole 527 of the carrier 52 is separated from the transfer positioning pin 512 of the turntable 51. The carrier 52 is positioned at the workstation through the workstation positioning hole 528 and the workstation positioning pin of the workstation;

[0053] When the turntable 51 needs to rotate, the turntable 51 will rise based on the action of the lifting divider 54. During the rising process, the transfer positioning pin 512 of the turntable 51 is inserted from bottom to top into the transfer positioning hole 527 of the product carrier 52. As the turntable 51 continues to rise, the work station positioning hole 528 of the product carrier 52 is separated from the work station positioning pin. Finally, when the turntable 51 rises to a high position, the carrier 52 is completely separated from the second carrier placement position, and the carrier 52 is placed entirely on the turntable 51. Next, the turntable 51 rotates. When the turntable 51 rotates to the right position, the turntable 51 descends. During the descent, the transfer positioning pin 512 of the turntable 51 disengages from the transfer positioning hole 527 of the product carrier 52. As the turntable 51 continues to descend, the workstation positioning pin of the workstation is inserted into the workstation positioning hole 528 of the product carrier 52. Finally, when the turntable 51 descends to the low position, the carrier 52 is completely separated from the turntable 51, and the carrier 52 is placed entirely on the second carrier placement position of the workstation. Next, the specific test of the current workstation can be performed. At this time, the four workstations work simultaneously.

[0054] The specific test contents of the four workstations are introduced below.

[0055] 1) For the loading and unloading station 1 in front of the left and right turntables 51: After the product is placed on the carrier 52 in the forward direction, it is placed together on the second carrier placement position of the loading and unloading station 1. The loading and unloading rotating mechanism 11 below the second carrier placement position rotates 180°, thereby rotating the carrier 52 of the tested product 180° in situ to the testing state;

[0056] 2) For the barcode scanning station 2 on the left side of the left turntable 51 and the barcode scanning station 2 on the right side of the right turntable 51: scan the product barcodes on the carrier 52 in parallel;

[0057] 3) For the electrical testing station 3 on the rear side of the left turntable 51 and the electrical testing station 3 on the rear side of the right turntable 51: the magnetizing translation mechanism 31 moves the magnetizing device 32 toward the first product connection plate 35, and the first pressing mechanism 33 presses the product support plate through the pressing head 34, so that the connector on the support plate is electrically connected to the first product connection plate 35. The specific content of the test of the electrical testing station 3 is already known and will not be repeated here.

[0058] 4) For the visual test station 4 on the right side of the left turntable 51 and the visual test station 4 on the left side of the right turntable 51: both cameras first move to the visual test station 4 that has been put in place first based on the shooting translation mechanism 41, the second pressing mechanism 43 presses the product pallet through the pressure head 44, so that the connector on the pallet is electrically connected to the second product connecting plate 47, and the product is heated to change. The two cameras shoot images from the front and back directions, and the system can determine whether the product is qualified by obtaining changes in the images. After completion, the two cameras move to another visual test station 4. For example, if the left turntable 51 runs to the visual test station 4 first, both cameras move to the visual test station 4 on the left first, and after taking pictures, the two cameras move to the visual test station 4 on the right. The specific content of the test of the visual test station 4 is already available and will not be repeated here. Because the dwell time of the turntable after each rotation is the same, that is, the dwell time at each workstation (which can also be understood as the test time at each workstation) is the same, but because the camera moves between the two visual test stations 4 in turn for shooting, it means that the two visual test stations 4 share the test time together, which means that the electrical test time is twice the visual test time. This can reasonably allocate the workstation time, and can more effectively improve the camera utilization rate and reduce costs.

[0059] In summary, the dual rotary transfer testing device of this embodiment has the following beneficial effects: the utility model utilizes a rotary transfer system to carry the product to switch sequentially between multiple stations, and multiple stations can be executed in parallel. Parallel testing effectively improves the test production efficiency, which is at least 50% higher than the single-station multi-function serial test; the utility model uses two rotary transfer systems to perform tests at the same time, further improving production efficiency, which is 100% higher than the single-turntable multi-station parallel test; and, the two visual test stations share a shooting device, which is switched between the two visual test stations with the shooting translation mechanism. In this way, the electrical test time is twice the visual test time, and the station time is reasonably allocated, which more effectively improves the camera utilization rate and reduces costs.

[0060] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0062] Terms including ordinal numbers such as "first" and "second" used in this specification may be used to describe various components, but these components are not limited by these terms. The purpose of using these terms is only to distinguish one component from other components. For example, without departing from the scope of the present invention, the first component may be named as the second component, and similarly, the second component may also be named as the first component.

[0063] The term “connected” or “connected” not only includes directly connecting two entities, but also includes indirectly connecting two entities through other entities having a beneficial improvement effect.

[0064] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A dual rotation transfer test device, which can be used to test a hard disk head, characterized in that: It includes two rotary transfer systems arranged side by side in a first horizontal direction, a plurality of stations are configured for parallel testing in a rotary path of the rotary transfer system, and the rotary transfer system is used to sequentially switch between the plurality of stations by rotating the tested product; The dual-rotation transfer testing device also includes a shooting and translation mechanism. The multiple workstations include an electrical testing station and a visual testing station. The visual testing stations of the two rotation transfer systems share a shooting device. The shooting device is arranged on the shooting and translation mechanism. The shooting and translation mechanism is used to drive the shooting device to switch between the visual testing stations of the two rotation transfer systems through translation.

2. The dual-rotation transfer test device according to claim 1, characterized in that: The rotary transfer system comprises a turntable, a plurality of carriers corresponding to the plurality of workstations, and a lifting and rotating mechanism. The front side of the carrier faces upward and is used to position and place the tested product. The turntable is provided with a plurality of first carrier placement positions corresponding to the plurality of workstations. The electrical test station and the visual test station both comprise a second carrier placement position. The lifting and rotating mechanism is connected to the turntable, and is used for driving the turntable to rotate and lift between a low position and a high position; when the turntable is in a low position, the first carrier placement position is lower than the second carrier placement position, and the carrier is placed on the second carrier placement position; when the turntable is raised to a high position, the first carrier placement position is higher than the second carrier placement position, and the carrier is separated from the second carrier placement position and placed on the first carrier placement position.

3. The dual-rotation transfer test device according to claim 2, characterized in that: The first carrier placement position is provided with at least one transfer positioning pin / hole, and the carrier is provided with at least one transfer positioning hole / pin corresponding to the at least one transfer positioning pin / hole; The second carrier placement position is provided with at least one station positioning pin / hole, and the carrier is provided with at least one station positioning hole / pin corresponding to the at least one station positioning pin / hole.

4. The dual-rotation transfer test device according to claim 2, characterized in that: The first carrier placement position is provided with an avoidance opening corresponding to the second carrier placement position, which is used to avoid the second carrier placement position for vertical movement after the turntable rotates to the point where the first carrier placement position is located above / below the second carrier placement position.

5. The dual-rotation transfer test device according to claim 2, characterized in that: The lifting and rotating mechanism includes a motor, a driving wheel, a driven wheel, a synchronous belt, and a lifting divider. The driving wheel is coaxially connected to the motor, the synchronous belt is sleeved outside the driving wheel and the driven wheel, the driven wheel is connected to the lifting divider to drive the lifting divider, and the lifting divider is connected to the bottom of the turntable to drive the turntable to lift and rotate.

6. The dual-rotation transfer test device according to claim 2, characterized in that: The electrical measuring station includes a magnetizing device for applying a magnetic field, a magnetizing translation mechanism, a first pressing mechanism, and a first product connecting plate; The first product connection plate is located on the second carrier placement position of the electrical testing station; the first pressing mechanism is located above the first product connection plate, and is used to press down the product under test on the carrier of the electrical testing station during electrical testing, so that the product under test is electrically connected to the first product connection plate; The magnetizing device is located at a distance beside the first product connecting plate and is arranged on the magnetizing translation mechanism. The magnetizing translation mechanism is used to bring the magnetizing device close to the first product connecting plate to magnetize the product under test.

7. The dual-rotation transfer test device according to claim 2, characterized in that: The visual testing station includes a second pressing mechanism and a second product connecting plate; The second product connection plate is located on the second carrier placement position of the visual test station; the second pressing mechanism is located above the second product connection plate, and is used to press down the tested product on the carrier of the visual test station during the visual test, so that the tested product is electrically connected to the second product connection plate; The visual testing stations of the two rotating transfer systems are arranged adjacent to each other in the first horizontal direction, the shooting device includes two cameras arranged opposite to each other in the second horizontal direction, the number of the shooting translation mechanisms is two, the two shooting translation mechanisms are spaced apart in the second horizontal direction and are respectively connected to one of the cameras, and the shooting translation mechanisms are used to drive the corresponding cameras to move along the first horizontal direction.

8. The dual-rotation transfer test device according to claim 2, characterized in that: The plurality of workstations further include a loading and unloading workstation, wherein the loading and unloading workstation, the electrical testing workstation and the visual testing workstation are sequentially distributed along the rotation direction of the rotary transfer system, and the loading and unloading workstation also includes a second carrier placement position; The orientation of the second carrier placement position of the loading and unloading station relative to the rotation center of the rotary transfer system is opposite to the orientation of the second carrier placement position of other stations relative to the rotation center of the rotary transfer system; The loading and unloading station includes a loading and unloading rotating mechanism, and the second carrier placement position of the loading and unloading station is arranged on the loading and unloading rotating mechanism. The loading and unloading rotating mechanism is used to rotate the second carrier placement position thereon to be consistent with the orientation of the second carrier placement position of other stations after loading and before unloading.

9. The dual-rotation transfer test device according to claim 8, characterized in that: The plurality of workstations further include a code scanning workstation, and the loading and unloading workstations, code scanning workstations, electrical testing workstations, and visual testing workstations are evenly spaced and arranged in a circle along the rotation direction of the rotary transfer system.

10. The dual-rotation transfer test device according to claim 9, characterized in that: The code scanning station includes a barcode gun, and the barcode gun is arranged above the turntable and faces the turntable.

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