CN113916090A - Mechanical hard disk plate deviation measuring device - Google Patents
Mechanical hard disk plate deviation measuring device Download PDFInfo
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- CN113916090A CN113916090A CN202111030268.6A CN202111030268A CN113916090A CN 113916090 A CN113916090 A CN 113916090A CN 202111030268 A CN202111030268 A CN 202111030268A CN 113916090 A CN113916090 A CN 113916090A
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- offset
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- 230000007246 mechanism Effects 0.000 claims abstract description 89
- 239000000523 sample Substances 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008844 regulatory mechanism Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000000779 smoke Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
Abstract
The invention relates to a mechanical hard disk plate offset measuring device which comprises a base, and a positioning clamp, an ejector pin mechanism, a disk rotating mechanism and a measuring mechanism which are arranged on the base, wherein the positioning clamp is used for positioning and clamping the mechanical hard disk, the ejector pin mechanism is used for pressing a rotating shaft of the mechanical hard disk so as to enable the disk to rotate around the shaft center, the disk rotating mechanism is used for driving the disk to rotate, and the measuring mechanism is used for measuring the rotating track of the disk. The mechanical hard disk plate offset measuring device can adapt to the measurement of hard disks with different sizes in the cleaning or recovery process, is convenient to use and has high measurement precision.
Description
Technical Field
The invention relates to the field of auxiliary tools of mechanical hard disks, in particular to a device for measuring the offset of a disk of a mechanical hard disk.
Background
With the increasing number of video monitoring network points in places such as streets, shopping malls, factories, warehouses and the like in modern cities, when major events occur in judicial authorities such as public security, fire fighting and the like, in order to find out cases as soon as possible, the monitoring video of the incident scene is called first, for example, by combining the fire-starting characteristics such as smoke, flame, light and the like appearing in the scene video, the reason of fire occurrence is researched by utilizing a scientific and effective video analysis method, can accurately judge the fire time and the fire position, provides powerful evidence for guiding fire investigators to accurately reveal the true phase of the fire accident, however, many times, the video monitoring hard disk is damaged due to burning, explosion, flooding or other unpredictable reasons, the existing damaged mechanical hard disk is difficult to repair, and a seriously damaged hard disk usually needs to be opened for cleaning or repairing, and then is reinstalled for reading, so as to obtain the data in the hard disk.
The rotation track of the disc in the rotation process is not an absolute circle but an ellipse, and when the magnetic head reads the data on the disc, the disc is required to rotate according to the original fixed track, so that the data on the disc can be accurately read. However, after the disk is opened for cleaning or repairing, how to accurately mount the disk according to the original position so that the magnetic head of the mechanical hard disk can accurately read the disk according to the original rotation track of the disk is a difficult problem to be solved in the field.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a device for measuring the offset of a mechanical hard disk, which can accurately measure the original rotation trajectory of the mechanical hard disk so that the disk can rotate within a predetermined allowable center offset tolerance after being cleaned or repaired.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a mechanical hard disk piece offset measuring device, includes the base and installs positioning fixture, thimble mechanism, video disc rotary mechanism and measuring mechanism on the base, positioning fixture is used for fixing a position and pressing from both sides mechanical hard disk, thimble mechanism is used for compressing tightly mechanical hard disk's pivot, so that the video disc is rotatory around the axle center, video disc rotary mechanism is used for driving the video disc rotates, measuring mechanism is used for measuring the offset in the rotation process of video disc.
Further, still including installing adjustment slip table on the base, positioning fixture fixed mounting be in on the adjustment slip table, the adjustment slip table is used for adjusting the displacement of mechanical hard drive along X direction and along the Y direction.
Further, the base includes bottom plate, curb plate support and roof, the curb plate support is installed perpendicularly on the bottom plate, the horizontal fixed mounting of roof is in the top of curb plate support, the equal fixed mounting of thimble mechanism and measuring mechanism is in on the roof, adjustment slip table and positioning fixture fixed mounting are in on the bottom plate, positioning fixture fixed mounting is in on the adjustment slip table.
Furthermore, the adjustment sliding table comprises an X-axis adjusting knob and a Y-axis adjusting knob which are respectively used for adjusting the movement of the positioning fixture arranged on the adjustment sliding table along the X-axis direction and the Y-axis direction.
Further, positioning fixture includes the mount pad, left side limit stop and right side limit stop are installed to the bilateral symmetry of mount pad, left side limit stop and right side limit stop be used for right respectively the left and right sides of hard disk is spacing and fixed, the front end of mount pad is fixed mounting still has front end stop device for carry on spacingly to the front end of hard disk.
Further, left side limit stop and right side limit stop all can follow the X direction and carry out the activity adjustment, left side limit stop and right side limit stop all include horizontal installation department and with the vertical installation department that the horizontal installation department is connected, both sides all be equipped with the hard disk fixed screw that is used for fixed hard disk on the vertical installation department, both sides all be equipped with the bar hole on the horizontal installation department and pass the bar hole and with mount pad threaded connection's adjusting screw.
Furthermore, the front end limiting device is a limiting screw which is fixed on the mounting seat.
Furthermore, the thimble mechanism includes the ejector pin, connects ejector pin and the eccentric mechanism that floats in the ejector pin bottom, the ejector pin is used for compressing tightly the pivot of mechanical hard disk, the eccentric mechanism that floats is used for driving the disc is rotatory, the video disc rotary mechanism with the ejector pin transmission is connected for the drive the ejector pin is rotatory, and then drives the eccentric mechanism that floats and the disc rotate.
Further, thimble mechanism still includes the sleeve, the sleeve cover is established outside the ejector pin, the outside salient two lugs that are formed with the symmetry in top both sides of ejector pin, telescopic top is formed with two and two lug complex recess, the bottom of ejector pin is formed with the shaft shoulder, the cover is equipped with first spring on the ejector pin, the one end of first spring withstands the sleeve, and the other end withstands the top of shaft shoulder, the shaft shoulder with the detachable connection of ejector pin.
Further, unsteady eccentric mechanism establishes including the cover the flotation pontoon head and the cover of ejector pin bottom again the second spring and the connection of ejector pin bottom the eccentric needle of flotation pontoon head bottom, the one end of second spring withstands the bottom of shaft shoulder, the other end withstands the flotation pontoon head, eccentric needle with the thimble is parallel and insert and establish and be located downthehole on the disc, the top of thimble with the detachable connection in bottom of week shoulder.
Furthermore, a square hole is formed in the float bowl head, the ejector rod penetrates through the square hole and is connected with the ejector pin, and the length and the width of the square hole are larger than the outer diameter of the ejector rod.
Further, disk rotary mechanism includes actuating mechanism, with pinion, the fixed cover that actuating mechanism's output is connected are established the gear wheel outside the sleeve and the connection the hold-in range of pinion and gear wheel, the actuating mechanism drive the pinion rotates, and then the drive gear wheel and sleeve rotate.
Further, measuring device is including fixed mounting dial, offset display, probe and regulation module on the disc, the dial with the disc is installed with the axle center, probe fixed mounting in the bottom of offset display, be used for remain throughout with the outer fringe contact of disc, the offset display is used for showing the offset of disc rotation in-process, the top of offset display is installed on the regulation module, the regulation module is used for adjusting offset display and probe relatively with displacement between the disc.
Further, adjust the module including adjusting the slip table and installing slip table base on adjusting the slip table, it includes X axle adjust knob and Z axle adjust knob to adjust the slip table, is used for adjusting respectively the regulation is installed offset display and probe on the slip table are along the displacement of X axle and Y axle direction.
Further, adjust the module and still include rotation regulation mechanism, rotation regulation mechanism includes the roating seat, the both sides of roating seat are equipped with the waist shape hole of two symmetries and the same centre of a circle, pass through screwed connection between roating seat and the slip table base, the screw passes waist shape hole with slip table base fixed connection, the top of offset display is fixed on the roating seat.
Due to the adoption of the technical scheme, the invention has the following advantages:
the offset of the rotation center of the mechanical hard disk can be accurately measured, so that the disk can rotate according to the specified allowable center offset tolerance after being cleaned or repaired, and the data in the disk can be accurately read;
the method can adapt to the offset side measurement of hard disk discs with different sizes, and has strong universality.
Drawings
FIG. 1 is a schematic structural diagram of a device for measuring disk offset of a mechanical hard disk according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an adjustment slide and a positioning fixture mounted on the adjustment slide;
FIG. 3 is a schematic view of the structure of FIG. 1 with the top plate removed;
FIG. 4 is a cross-sectional view of the disk offset measuring device of the mechanical hard disk of FIG. 1;
FIG. 5 is an enlarged partial view of the ejector pin mechanism of FIG. 4;
description of reference numerals:
1-base, 2-positioning clamp, 3-disc rotating mechanism, 4-measuring mechanism, 5-thimble mechanism, 6-adjusting sliding table, 7-mechanical hard disk, 11-bottom plate, 12-side plate bracket, 13-top plate, 21-left side limit baffle, 22-right side limit baffle, 23-adjusting screw, 24-mounting seat, 25-fixing screw, 26-front section limit screw, 27-strip-shaped hole, 31-driving motor, 32-driving wheel, 33-driven wheel, 34-synchronous belt, 41-dial, 42-Z axis adjusting knob, 43-X axis adjusting knob, 44-rotating seat, 45-offset display, 46-probe, 47-adjusting module, 51-thimble, 4-measuring mechanism, 5-thimble mechanism, 6-adjusting sliding table, 7-mechanical hard disk, 11-bottom plate, 12-side plate bracket, 13-top plate, 21-left side limit baffle, 22-right side limit baffle, 23-adjusting screw, 24-mounting seat, 25-fixing screw, 26-front section limit screw, 27-strip-shaped hole, 31-driving motor, 32-driving wheel, 33-driven wheel, 34-synchronous belt, 41-dial, 42-Z axis adjusting knob, 43-X axis adjusting module, 44-axis adjusting module, 51-rotating seat, 51-ejector pin, 51-rotating module, 51-ejector pin, 2-rotating table, and 4-measuring mechanism, 52-sleeve, 53-first spring, 54-second spring, 55-floating eccentric mechanism, 511-lug, 512-shaft shoulder, 513-thimble, 551-floating head, 552-eccentric needle, 71-shell, 72-disc, 61-X axis adjusting knob and 62-Y axis adjusting knob.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used to define elements only for convenience in distinguishing between the elements, and unless otherwise stated have no special meaning and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the device for measuring the disk offset of the mechanical hard disk according to the present invention includes a base 1, and a positioning fixture 2, an ejector pin mechanism 5, a disk rotating mechanism 3, and a measuring mechanism 4 mounted on the base 1, where the positioning fixture 2 is used to position and clamp the mechanical hard disk 7, the ejector pin mechanism 5 is used to press a rotating shaft of the mechanical hard disk 7 so as to rotate a disk 72 around a shaft center, the disk rotating mechanism 3 is used to drive the disk 72 to rotate, and the measuring mechanism is used to measure a rotating track of the disk 72. The hard disk offset measuring device is used for measuring the rotation track of the hard disk 72 in the data reading process, and after the disk 72 is repaired or cleaned, the disk 72 can be accurately installed again according to the measured track so as to be consistent with the measured track of the disk, so that the data in the disk 72 can be accurately read.
The base includes bottom plate 11, two curb plate supports 12 and roof 13, two curb plate support 12 horizontal interval and perpendicular installation are in on the bottom plate 11, roof 13 horizontal fixed mounting be in two the top of curb plate support 12, the equal fixed mounting of thimble mechanism 5 and measuring mechanism 4 is in on the roof 13, positioning fixture 2 fixed mounting be in on the bottom plate 11, and be located the below of roof 13.
As shown in fig. 2, in order to adjust the position of the positioning fixture 2, so that the disk 72 is aligned with the ejector pin mechanism 5 located above, the measuring device 4 further includes an adjusting slide table 6 installed on the base 1, the positioning fixture 2 is fixedly installed on the adjusting slide table 6, and the adjusting slide table 6 is used for adjusting the displacement of the positioning fixture 2 and the hard disk 7 fixed on the positioning fixture 2 along the X direction and the Y direction. The adjusting sliding table 6 comprises an X-axis adjusting knob 62 and a Y-axis adjusting knob 61, which are respectively used for adjusting the movement of the positioning fixture 2 installed on the adjusting sliding table 6 along the X-axis and Y-axis directions.
Positioning fixture 2 includes the mount pad, and left side limit stop 21 and right side limit stop 22 are installed to the bilateral symmetry of mount pad, left side limit stop 21 and right side limit stop 22 are used for right respectively the left and right sides of hard disk 7 is spacing and fixed, the front end of mount pad is fixed mounting still has front end spacing screw 26 for carry on spacingly to the front end of hard disk 7.
When the mechanical hard disk 7 is positioned and fixed, the hard disk 7 is placed on the mounting seat, and then the two sides of the hard disk 7 are limited and clamped by the right limit stop 22 of the left limit stop 21, and the front end of the hard disk 7 is limited by the front limit screw 26.
The left limit stop 21 and the right limit stop 22 can be movably adjusted along the X direction to adapt to the positioning and clamping of the mechanical hard disks 7 with different width sizes. Specifically, left side limit stop 21 and right side limit stop 22 all include horizontal installation department and with the perpendicular installation department that horizontal installation department connects, two all be equipped with two hard disk fixing screws 25 that are used for fixed hard disk on the perpendicular installation department, the both sides of machinery hard disk 7 be equipped with fixing screw 25 screw hole that cooperatees, all establish bar hole 27 and pass on the horizontal installation department bar hole 27 and with mount pad threaded connection's adjusting screw 23. When the mechanical hard disk 7 is clamped, firstly, the mechanical hard disk 7 is limited by the limiting screws 26 arranged at the front ends, then the limiting stops at two sides are moved to just abut against two sides of the mechanical hard disk 7, then the limiting stops are fixed on the mounting seat through the adjusting screws 23, and meanwhile, the two fixing screws 25 are screwed into the threaded holes in the mechanical hard disk 7 to form fixed connection, so that the mechanical hard disk 7 is positioned and clamped.
The thimble mechanism 5 comprises a top rod 51, a thimble 513 connected to the bottom end of the top rod 51 and a floating eccentric mechanism 55, the thimble 513 is used for compressing the rotating shaft of the mechanical hard disk 7, the floating eccentric mechanism 55 is used for driving the disk 72 to rotate, and the disk rotating mechanism 3 is in transmission connection with the top rod 51 and is used for driving the top rod 51 to rotate so as to drive the floating eccentric mechanism 55 and the disk 72 to rotate. When measurement is performed, the thimble 513 compresses the rotating shaft of the mechanical hard disk 72, and then the disk rotating mechanism 3 drives the thimble 513 to rotate, so as to drive the disk 72 to rotate through the floating eccentric mechanism 55.
As shown in fig. 4 and 5, the thimble mechanism 5 further includes a sleeve 52, the sleeve 52 is sleeved outside the ejector rod 51, two symmetrical protruding blocks 511 are formed at two sides of the top of the ejector rod 51 and protrude outwards, two grooves matched with the two protruding blocks 511 are formed at the top of the sleeve 52, a shaft shoulder 512 is formed at the bottom of the ejector rod 51, a first spring 53 is sleeved on the ejector rod 51, one end of the first spring 53 abuts against the sleeve 52, the other end abuts against the top of the shaft shoulder 512, and the shaft shoulder 512 is detachably connected with the ejector rod 511.
When the disc pressing device is used, the ejector 511 is inserted into the sleeve 52, the ejector 51 is rotated to enable the bumps 511 at two sides of the ejector 51 to be just embedded into the groove at the top of the sleeve 52, the first spring 53 is sleeved at the bottom of the ejector 51 in a compressed manner, the shaft shoulder 512 is fixed at the top of the ejector 51, so that the top of the first spring 53 abuts against the inner wall of the sleeve 52, the bottom of the first spring abuts against the bottom of the shaft shoulder 512, and the ejector 513 at the bottom of the ejector 511 is enabled to keep pressing force on the disc 72 all the time through the restoring force action of the first spring 52. The disc rotating mechanism 3 is used for driving the sleeve 52 to rotate, driving the ejector rod 51 and the floating eccentric mechanism 55 connected to the bottom of the ejector rod 51 to rotate, and further driving the disc 72 to rotate. After the measurement of the disk 62 is completed, the lift pin 51 is lifted to further compress the first spring 53, so that the protrusions 511 at both sides of the top of the lift pin 51 are disengaged from the sleeve 52, and the lift pin 51 is rotated to keep the lift pin 513 at a distance from the disk 72 and at a corresponding position.
The floating eccentric mechanism 55 comprises a pontoon head 551 sleeved on the bottom of the ejector rod 51, a second spring 54 sleeved on the bottom of the ejector rod 51 and an eccentric needle 552 connected to the bottom of the pontoon head 51, wherein one end of the second spring 54 abuts against the bottom of the shaft shoulder 512, the other end of the second spring abuts against the pontoon head 551, the eccentric needle 552 is parallel to the ejector pin 51 and is inserted into the jack on the disk 72, and the top of the ejector pin 51 is detachably connected with the bottom of the shaft shoulder 512.
The eccentric floating mechanism 55 is designed, and the eccentric needle 552 is set to float, so that the disc player can adapt to the use of discs with different sizes. When the disc 72 is thick, the second spring 54 is compressed upward, the eccentric pin 552 is inserted into the corresponding insertion hole, and the disc 72 is driven to rotate by the driving action of the disc rotating mechanism 3.
Furthermore, in order to adapt to the use of discs with different sizes, a square hole is further formed in the buoy head 551, the ejector rod penetrates through the square hole to be connected with the ejector pin 51, and the length and the width of the square hole are both larger than the outer diameter of the ejector rod 51. The position of the eccentric needle 552 along the horizontal direction is adjusted by moving the float head 551 left and right, and then the eccentric needle is inserted into the corresponding jack, and the disc is driven to rotate by the driving action of the disc rotating mechanism 3.
Finally, the first spring 53 and the second spring 54 can further play a role in buffering and damping, so that the measuring accuracy is further improved.
As shown in fig. 3, the disk rotation mechanism 3 includes a driving mechanism 31, a driving wheel 32 connected to an output end of the driving mechanism 31, a driven wheel 33 fixedly sleeved outside the sleeve 52, and a timing belt 34 connecting the driving wheel 32 and the driven wheel 33, wherein the driving mechanism 31 drives the driving wheel 31 to rotate, and further drives the driven wheel 33 and the sleeve 52 to rotate. The drive mechanism is preferably a step down motor. The transmission ratio between the driving wheel 32 and the driven wheel 33 is 1: 3. The output end of the driving motor 31 is in transmission connection with the driving wheel 32 through a speed reducing mechanism, and the transmission ratio of the speed reducing mechanism is 1: 3.
As shown in fig. 3 and 4, the measuring mechanism 4 includes a dial 41 fixedly mounted on the disk 72, an offset display 45, a probe 46, and an adjusting module 47, the dial 41 is coaxially mounted with the disk 72, the probe 46 is fixedly mounted at the bottom of the offset display 45 and is used for always keeping contact with the outer edge of the disk 72, the offset display 45 is used for displaying the offset during the rotation of the disk 72, and the adjusting module 47 is used for adjusting the displacement between the offset display 45 and the probe 46 relative to the disk 72.
In order to adjust the positions of the offset display 45 and the probe 46 relative to the disk 72 to adapt to the track measurement of the disks 72 with different thickness sizes and outer diameter sizes, the adjusting module 47 comprises an adjusting sliding table, and the adjusting sliding table comprises an X-axis adjusting knob 43 and a Z-axis adjusting knob 42 which are respectively used for adjusting the displacements of the offset display and the probe which are installed on the adjusting sliding table along the X-axis direction and the Y-axis direction.
Simultaneously for the outer fringe contact of making probe 46 and disc 72, adjust module 47 still includes rotary adjusting mechanism, rotary adjusting mechanism includes roating seat 44, roating seat 44's bilateral symmetry is equipped with the waist shape hole 45 of two concentric circles, roating seat 44 through screwed connection between the slip table base, the screw passes waist shape hole 45 with slip table base fixed connection, offset display 45's top is fixed on roating seat 44. The angle of the rotary seat 44 relative to the sliding table base is rotated to make the probe 46 contact the outer edge of the disk 72, and after the angle position is adjusted, the probe is fixed and locked by screws.
The measuring principle of the device for measuring the offset of the mechanical hard disk provided by the invention is as follows:
the mechanical hard disk 7 is fixedly clamped through the positioning clamp 2;
the rotating shaft of the disk 72 is pressed by the thimble mechanism 5, the position of the probe 46 is adjusted by the adjusting module 4 so that the probe always keeps elastic contact with the outer edge of the disk 72, then the disk rotating mechanism 3 is started to drive the disk 72 to rotate, and in the 360-degree rotation process of the disk, 12 point positions are uniformly taken by the dial 41 and the numerical value on the offset display 45 is recorded, wherein the numerical value is the offset value of the disk and the hard disk spindle center when the hard disk 72 is at the point position. After the rotation track of the disc is determined, the disc is taken down to perform cleaning and recovery work, and after the cleaning and recovery work is completed, the disc 72 is installed in the hard disk 7 again, and the rotation track of the disc is consistent with the measured track, so that the magnetic head of the disc can read the data on the recovered disc.
The device for measuring the offset of the disk of the mechanical hard disk can adapt to the measurement of hard disks with different sizes in the cleaning or recovery process, is convenient to use and has high measurement precision.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (15)
1. The device for measuring the offset of the disk of the mechanical hard disk is characterized by comprising a base, and a positioning clamp, an ejector pin mechanism, a disk rotating mechanism and a measuring mechanism which are arranged on the base, wherein the positioning clamp is used for positioning and clamping the mechanical hard disk, the ejector pin mechanism is used for pressing a rotating shaft of the mechanical hard disk so as to enable the disk to rotate around a shaft center, the disk rotating mechanism is used for driving the disk to rotate, and the measuring mechanism is used for measuring the offset of the disk in the rotating process.
2. The mechanical hard disk offset measuring device according to claim 1, further comprising an adjusting slide table mounted on the base, wherein the positioning fixture is fixedly mounted on the adjusting slide table, and the adjusting slide table is used for adjusting the displacement of the mechanical hard disk along the X direction and the Y direction.
3. The mechanical hard disk offset measuring device according to claim 2, wherein the base includes a bottom plate, a side plate bracket and a top plate, the side plate bracket is vertically installed on the bottom plate, the top plate is horizontally and fixedly installed on the top of the side plate bracket, the ejector pin mechanism and the measuring mechanism are both fixedly installed on the top plate, the adjusting sliding table and the positioning fixture are fixedly installed on the bottom plate, and the positioning fixture is fixedly installed on the adjusting sliding table.
4. The mechanical hard disk offset measuring device of claim 2, wherein the adjusting slide comprises an X-axis adjusting knob and a Y-axis adjusting knob for adjusting the movement of the positioning fixture installed on the adjusting slide along the X-axis and Y-axis directions, respectively.
5. The device for measuring the offset of the mechanical hard disk according to claim 1, wherein the positioning fixture comprises a mounting base, a left limit stop and a right limit stop are symmetrically mounted on two sides of the mounting base, the left limit stop and the right limit stop are respectively used for limiting and fixing the left side and the right side of the hard disk, and a front end limiting device is fixedly mounted on the front end of the mounting base and used for limiting the front end of the hard disk.
6. The mechanical hard disk offset measuring device according to claim 5, wherein the left limit stop and the right limit stop are both movably adjustable along the X direction, each of the left limit stop and the right limit stop comprises a horizontal mounting portion and a vertical mounting portion connected with the horizontal mounting portion, hard disk fixing screws for fixing a hard disk are arranged on the vertical mounting portions on both sides, and strip-shaped holes and adjusting screws penetrating through the strip-shaped holes and in threaded connection with the mounting seats are arranged on the horizontal mounting portions on both sides.
7. The mechanical hard disk drive offset measuring device of claim 6, wherein the front limiting device is a limiting screw fixed on the mounting seat.
8. The device of claim 1, wherein the ejector pin mechanism comprises an ejector pin, an ejector pin connected to a bottom end of the ejector pin, and a floating eccentric mechanism, the ejector pin is used for pressing a rotating shaft of the mechanical hard disk, the floating eccentric mechanism is used for driving the disk to rotate, and the disk rotating mechanism is in transmission connection with the ejector pin and is used for driving the ejector pin to rotate so as to drive the floating eccentric mechanism and the disk to rotate.
9. The apparatus of claim 8, wherein the ejector pin mechanism further comprises a sleeve, the sleeve is sleeved outside the ejector pin, two symmetrical protrusions are formed on two sides of the top of the ejector pin, two grooves matched with the two protrusions are formed on the top of the sleeve, a shoulder is formed on the bottom of the ejector pin, a first spring is sleeved on the ejector pin, one end of the first spring abuts against the sleeve, the other end of the first spring abuts against the top of the shoulder, and the shoulder is detachably connected with the ejector pin.
10. The mechanical hard disk drive offset measuring device of claim 8, wherein the floating eccentric mechanism comprises a floating cylinder head sleeved on the bottom of the ejector rod, a second spring sleeved on the bottom of the ejector rod, and an eccentric pin connected to the bottom of the floating cylinder head, one end of the second spring abuts against the bottom of the shaft shoulder, the other end of the second spring abuts against the floating cylinder head, the eccentric pin is parallel to the ejector pin and inserted into the hole on the disk, and the top of the ejector pin is detachably connected to the bottom of the circumferential shoulder.
11. The device of claim 10, wherein the floating head further comprises a square hole, the lift pin passes through the square hole and is connected to the lift pin, and the length and width of the square hole are larger than the outer diameter of the lift pin.
12. The mechanical hard disk deviation measuring device of claim 1, wherein the disk rotation mechanism comprises a driving mechanism, a small gear connected to an output end of the driving mechanism, a large gear fixedly sleeved outside the sleeve, and a synchronous belt connecting the small gear and the large gear, the driving mechanism drives the small gear to rotate, and further drives the large gear and the sleeve to rotate.
13. The mechanical hard disk offset measuring device according to claim 1, wherein the measuring device comprises a dial fixedly mounted on the disk, an offset indicator, a probe and an adjusting module, the dial is coaxially mounted with the disk, the probe is fixedly mounted on the bottom of the offset indicator for always keeping contact with the outer edge of the disk, the offset indicator is used for displaying the offset during the rotation of the disk, the top end of the offset indicator is mounted on the adjusting module, and the adjusting module is used for adjusting the displacement between the offset indicator and the probe relative to the disk.
14. The mechanical hard disk drive offset measuring device of claim 13, wherein the adjusting module comprises an adjusting sliding table and a sliding table base installed on the adjusting sliding table, and the adjusting sliding table comprises an X-axis adjusting knob and a Z-axis adjusting knob for adjusting the offset display and the probe installed on the adjusting sliding table respectively along the X-axis and Y-axis directions.
15. The mechanical hard disk offset measuring device according to claim 14, wherein the adjusting module further comprises a rotation adjusting mechanism, the rotation adjusting mechanism comprises a rotating base, two symmetrical and concentric waist-shaped holes are formed on two sides of the rotating base, the rotating base is connected with the sliding table base through screws, the screws penetrate through the waist-shaped holes and are fixedly connected with the sliding table base, and the top of the offset display is fixed on the rotating base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030268.6A CN113916090B (en) | 2021-09-03 | 2021-09-03 | Device for measuring deflection of mechanical hard disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030268.6A CN113916090B (en) | 2021-09-03 | 2021-09-03 | Device for measuring deflection of mechanical hard disk |
Publications (2)
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| CN117346634A (en) * | 2023-12-04 | 2024-01-05 | 卡耐夫集团(山西)管道系统有限公司 | Brake disc surface detection device |
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| CN113916090B (en) | 2023-12-29 |
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