CN115435686A - Measuring apparatus and measuring method - Google Patents

Abstract

The present application relates to a measuring apparatus and a measuring method. The measuring device comprises a platform and a projection measuring device, wherein the platform comprises a placing area for placing the cutting device; the projection measuring device comprises a light-emitting lens and a light-receiving lens, wherein the light-emitting lens and the light-receiving lens are arranged on the platform and are respectively positioned on two sides of the placing area, the light-emitting lens is used for emitting laser so as to project the adjacent parts of the first blade and the second blade onto the light-receiving lens, and the light-receiving lens is used for obtaining the projection of the first blade and the projection of the second blade so as to measure the relative position parameter between the projection of the first blade and the projection of the second blade. The measuring equipment provided by the application has higher accuracy of the measuring result.

Description

Measuring apparatus and measuring method

Technical Field

The application relates to the technical field of measuring equipment, in particular to measuring equipment and a measuring method.

Background

Energy conservation and emission reduction are the key points of sustainable development of the automobile industry, and electric vehicles become important components of the sustainable development of the automobile industry due to the advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

The battery comprises a pole piece which is usually formed by cutting a sheet material through a cutting device, and a relative position parameter between a first blade and a second blade of the cutting device is a key factor influencing the quality of the cut pole piece. Before slitting, measuring relative position parameters between the first blade and the second blade by using measuring equipment, wherein the conventional measuring mode is to photograph adjacent parts of the first blade and the second blade by using a camera and then calculate the relative position parameters by using engineering software. In order to obtain the proportional relation between the size of the image of the camera and the size of the entity, the imaging of the camera needs to be calibrated, the precision error of the calibration object and the position parameter error of the calibration object both can cause a larger error in the measurement result calculated by engineering software, and the quality of the pole piece formed by cutting is poorer because of the larger error in the measurement result.

Disclosure of Invention

In view of the above problems, an object of the present application is to provide a measuring apparatus and a measuring method, which can measure relative position parameters of a first blade and a second blade and obtain a relatively accurate measurement result.

In a first aspect, the application provides a measuring device for measuring relative position parameters between a first blade and a second blade of a slitting device, the measuring device comprising a platform and a projection measuring device, the platform comprising a placement area for placing the slitting device; the projection measuring device comprises a light-emitting lens and a light-receiving lens, wherein the light-emitting lens and the light-receiving lens are arranged on the platform and are respectively positioned on two sides of the placement area, the light-emitting lens is used for emitting laser so as to project the adjacent parts of the first blade and the second blade onto the light-receiving lens, and the light-receiving lens is used for obtaining the projection of the first blade and the projection of the second blade so as to measure the relative position parameter between the projection of the first blade and the projection of the second blade.

In the technical scheme of the embodiment of the application, laser emitted by the light-emitting lens firstly irradiates adjacent parts of the first blade and the second blade and then irradiates the light-receiving lens, shadows of the adjacent parts of the first blade and the second blade are projected on the light-receiving lens, in the projection process, the arrangement direction between the light-emitting lens and the light-receiving lens is perpendicular to the axial direction of the first blade and the second blade, so that the size of the projection on the light-receiving lens can approach to the actual size of the adjacent parts of the first blade and the second blade, the engineering system measures the size of the projection, and the measured relative position parameter of the projection of the first blade on the second blade is the relative position parameter between the first blade entity and the second blade entity, so that the measurement error is reduced, and the measurement precision is improved.

In some embodiments, the measuring apparatus further includes a positioning portion, the positioning portion is disposed on the platform, and the positioning portion is used for positioning the slitting device.

In the technical scheme of this application embodiment, after the device of cutting is placed in and is placed the district, location portion fixes a position the device of cutting, and the projection measuring device of being convenient for obtains the projection of the adjacent part of first blade and second blade.

In some embodiments, the positioning portion is disposed at least partially around the placement area.

In the technical scheme of the embodiment of the application, the positioning part can be arranged only around one part of the placing area, and the gaps are reserved around the placing area so that the slitting device can be pushed into the placing area from the gaps, and the slitting device can be assembled conveniently; location portion can surround the district of placing completely, and is better to the location effect of placing the device of cutting in the district of placing.

In some embodiments, the positioning portion includes a first positioning boss, a second positioning boss, and a third positioning boss, the first positioning boss and the third positioning boss are disposed opposite to each other along a first direction, the first positioning boss and the third positioning boss both extend along a second direction, the second positioning boss extends along the first direction, one end of the first positioning boss and one end of the third positioning boss are both connected to the second positioning boss, and the first direction is perpendicular to the second direction.

In the technical scheme of this application embodiment, cut the device and get into first location boss, in the space that second location boss and third location boss enclose along the second direction, and with first location boss, the laminating of second location boss and third location boss, location portion can carry on spacingly to cutting the device, detect the completion back, cut the device and prolong the second direction again and leave the space that first location boss, second location boss and third location boss enclose, the locate mode is simple quick, the operation is simple and easy.

In some embodiments, the positioning portion includes a magnetic member, the magnetic member is disposed on the second positioning boss, and the magnetic member is used for adsorbing the slitting device.

In the technical scheme of this application embodiment, cut the device and enter into first location boss, second location boss and third location boss and enclose the space back, the device is cut in order to fix a position to the device is cut in the magnetic part absorption, reduces to cut the device and breaks away from the risk of placing the district by oneself along the second direction, and the locate mode is simple swift.

In some embodiments, the measuring apparatus further includes two adjusting components, the adjusting components are disposed on the platform, and the two adjusting components are respectively used for adjusting the position and the angle of the light-emitting lens and the light-receiving lens.

In the technical scheme of the embodiment of the application, the two adjusting components are respectively used for adjusting the positions of the light-emitting lens and the light-receiving lens, so that the adjacent parts of the first blade and the second blade can be positioned in laser; the two adjusting components are also used for adjusting the angles of the light-emitting lens and the light-receiving lens respectively, so that the arrangement line of the light-emitting lens and the light-receiving lens can be perpendicular to the axial direction of the first blade and the second blade, the size of projection can approach to the size of an entity, and the measuring result has higher accuracy.

In some embodiments, the adjusting assembly includes a base and a first sliding block, the base is disposed on the platform, the first sliding block is in sliding fit with the base, the first sliding block and the base move relatively along a second direction, and the second direction is perpendicular to the height direction of the platform.

In the technical scheme of the embodiment of the application, the light-emitting lens and the light-receiving lens can move in the second direction along with the first sliding block so as to change the position of the laser, so that the light-emitting lens and the light-receiving lens can be over against the adjacent parts of the first blade and the second blade, the projection of the adjacent parts of the first blade and the second blade can be obtained, and the measurement is convenient.

In some embodiments, the adjusting assembly further includes a second sliding block, the second sliding block is disposed on the first sliding block, the first sliding block is in sliding fit with the second sliding block, the second sliding block and the first sliding block move relatively along a first direction, and the first direction, the second direction and the height direction of the platform are perpendicular to each other.

In the technical scheme of this application embodiment, light-emitting lens and photic lens can follow the second slider and move in the first direction to change the interval distance between light-emitting lens and the photic lens, reduce and place the risk that the cutting device including the great blade of diameter (first blade and second blade) and bump with light-emitting lens and photic lens when placing the district.

In some embodiments, the adjusting assembly further includes a third sliding block, the third sliding block is disposed on the second sliding block, the third sliding block is in sliding fit with the second sliding block, and the third sliding block and the second sliding block move relatively along the height direction of the platform.

In the technical scheme of this application embodiment, light-emitting lens and photic lens can move along with the direction of height of third slider platform to change the position of laser, make light-emitting lens and photic lens can just to the adjacent part of first blade and second blade, obtain the projection that can contain the adjacent part of first blade and second blade, be convenient for measure.

In some embodiments, the adjusting assembly further includes a turntable rotatably connected to the third slider, the turntable being configured to mount the light emitting lens or the light receiving lens, and the turntable being rotatable around a height direction of the platform.

In the technical scheme of this application embodiment, light-emitting lens and photic lens can rotate along with the rotation of revolving stage, change the angle of laser, let the direction of laser be on a parallel with the axial of first blade and second blade, make the size of the projection on the photic lens approach to the size of entity, and then make the relative position parameter between the projection of first blade and the projection of second blade can approach to the relative position parameter between the entity of first blade and the entity of second blade.

In some embodiments, the adjusting assembly further includes a first screw rod, a second screw rod and a third screw rod, the first screw rod is in threaded connection with the base, the first screw rod is in rotational connection with the first slider, and the first screw rod is used for driving the first slider to move along the second direction; the second screw rod is in threaded connection with the first sliding block, is in rotary connection with the second sliding block and is used for driving the second sliding block to move along the first direction; the third screw rod is in threaded connection with the second sliding block, the third screw rod is in rotary connection with the third sliding block, and the third screw rod is used for driving the second sliding block to move along the height direction of the platform.

In the technical scheme of this application embodiment, first lead screw drive first slider removes in the second direction, when first lead screw stall, first slider rigidity on the base, second lead screw drive second slider removes in the first direction, when second lead screw stall, the second slider rigidity on first slider, third lead screw drive third slider removes in the direction of height of platform, when third lead screw stall, the third slider rigidity on the second slider, thereby adjust and fix the position of emitting lens and photic lens, reduce the risk that emitting lens and photic lens are from the line displacement influence measuring result.

In some embodiments, the relative positional parameters include axial clearance and/or radial bite.

Among the technical scheme of this application embodiment, measuring equipment can measure the axial clearance and/or the radial amount of eating between first blade and the second blade of cutting device, and the operating personnel of being convenient for changes or carries out position control to the first blade and the second blade of cutting device according to the measuring result to promote the effect of cutting device to the sheet.

In a second aspect, the present application provides a measuring method for measuring a relative positional parameter between a first blade and a second blade of a slitting device, the measuring method comprising the steps of:

the light-emitting lens emits laser to project the first blade and the second blade onto a light-receiving lens;

and obtaining a relative position parameter between the first blade and the second blade by measuring the projection of the first blade and the second blade on the light receiving lens.

In the technical scheme of the embodiment of the application, telecentric light (which can be regarded as parallel light) emitted by the light-emitting lens forms a projection at the light-receiving lens after passing through a measured object (adjacent parts of the first blade and the second blade), and then relative position parameters between the first blade and the second blade are obtained through measuring the projection. The relative position parameter of the projection of the first blade and the projection of the second blade obtained by the measuring method approaches to the relative position parameter between the first blade entity and the second blade entity, and the measuring result is more accurate.

In some embodiments, the relative position parameter comprises an axial clearance; the projected profile of the first blade comprises a first straight line segment, the projected profile of the second blade comprises a second straight line segment, the interval distance between the first straight line segment and the second straight line segment along a second direction is the axial gap, the first straight line segment and the second straight line segment have an overlapping part in the second direction, and the second direction is parallel to the extending direction of the axis of the first blade or the second blade; the obtaining of the relative position parameter between the first blade and the second blade by measuring the projection of the first blade and the second blade on the light receiving lens includes obtaining the axial clearance between the first blade and the second blade by measuring the separation distance between a first point on the first straight line segment and a second point on the second straight line segment in a second direction, where the first point and the second point are both located outside the overlapping portion.

In the technical scheme of the embodiment of the application, the engineering software can directly measure the position parameters of the first point and the second point, then the distance between the first point and the second point in the axial direction of the first blade or the second blade is calculated, and the distance is the axial gap between the first blade and the second blade.

In some embodiments, the relative positional parameters include axial clearance and radial bite; the obtaining of the relative position parameter between the first blade and the second blade by measuring the projection of the first blade and the second blade on the light receiving lens includes obtaining the radial attack amount by measuring a separation distance between a projection point of the cutting edge of the first blade and a projection point of the cutting edge of the second blade along a third direction when the axial gap exceeds a preset value, wherein the third direction is parallel to the extending direction of the first straight line segment or the second straight line segment; when the axial clearance does not exceed the preset value, determining the position parameter of the projection point of the cutting edge of the first blade according to the projection profile parameter of the first blade, determining the position parameter of the projection point of the cutting edge of the second blade according to the projection profile parameter of the second blade, and determining the radial cutting load according to the position parameter of the projection point of the cutting edge of the first blade and the position parameter of the projection point of the cutting edge of the second blade.

According to the technical scheme of the embodiment of the application, when the axial clearance exceeds a preset value, the engineering software can directly measure the position parameter of the projection point of the first blade edge and the position parameter of the projection point of the second blade edge; when the axial clearance does not exceed the preset value, the engineering software can calculate the position parameter of the projection point of the cutting edge of the first blade according to the projection profile of the first blade, and calculate the position parameter of the projection point of the cutting edge of the second blade according to the projection profile of the second blade. Then, the distance between the projected point of the first blade edge and the projected point of the second blade edge in the vertical direction (i.e., the third direction) is calculated, and the distance is the radial bite between the first blade and the second blade.

In some embodiments, determining the location parameter of the projected point of the cutting edge of the first blade according to the parameters of the projected profile of the first blade includes determining the location parameter of the projected point of the cutting edge of the first blade according to the location parameters of a first straight line segment and a third straight line segment of the projected profile of the first blade, wherein the first straight line segment and the third straight line segment intersect at the projected point of the cutting edge of the first blade.

In the technical scheme of the embodiment of the application, the engineering software can measure the position parameter of the endpoint of the projection point of the third straight line segment, which deviates from the projection point of the first blade edge, then calculate the length a of the third straight line segment in the vertical direction (i.e. the third direction) according to the included angle between the first straight line segment and the third straight line segment, start with the position of the endpoint of the projection point of the third straight line segment, which deviates from the projection point of the first blade edge, move the length a in the vertical direction (i.e. the third direction), can obtain the position parameter of the projection point of the first blade edge in the vertical direction (i.e. the third direction), calculate the difference between the position parameter of the projection point of the first blade edge in the vertical direction (i.e. the third direction) and the position parameter of the projection point of the second blade edge in the vertical direction (i.e. the third direction), and the difference is the radial consumption of the first blade and the second blade.

In some embodiments, the determining the location parameter of the projected point of the cutting edge of the second blade according to the projected profile parameter of the second blade comprises: and determining the position parameter of the projection point of the cutting edge of the second blade according to the position parameters of a second straight line segment and a fourth straight line segment of the projection profile of the second blade, wherein the second straight line segment and the fourth straight line segment are intersected at the projection point of the cutting edge of the second blade.

According to the technical scheme, engineering software can measure position parameters of end points of projection points of a fourth straight line segment, which are deviated from a projection point of the cutting edge of the second blade, and then calculate the length b of the fourth straight line segment in the vertical direction (namely the third direction) according to an included angle between the second straight line segment and the fourth straight line segment, starting from the position of the end point of the projection point of the fourth straight line segment, which is deviated from the cutting edge of the second blade, and moving the length b in the vertical direction (namely the third direction), so that position parameters of the projection point of the cutting edge of the second blade in the vertical direction (namely the third direction) can be obtained, and a difference value between the position parameters of the projection point of the cutting edge of the first blade in the vertical direction (namely the third direction) and the position parameters of the projection point of the cutting edge of the second blade in the vertical direction (namely the third direction) is calculated, and is the radial bite amount of the first blade and the second blade.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a slitting device measured by a measuring apparatus according to some embodiments of the present disclosure;

FIG. 2 is a schematic structural diagram of a platform provided in some embodiments of the present application;

FIG. 3 is a schematic view of a slitting device according to some embodiments of the present application;

FIG. 4 is a front view of a measurement device provided by some embodiments of the present application;

FIG. 5 is a schematic structural diagram of an adjustment assembly according to some embodiments of the present application;

FIG. 6 is a left side view of a measurement device provided by some embodiments of the present application;

FIG. 7 is a schematic view of a slitting device according to some embodiments of the present application as it slits a web;

fig. 8 is a schematic structural diagram of a first cutter shaft according to some embodiments of the present disclosure;

FIG. 9 isbase:Sub>A cross-sectional view taken at A-A of FIG. 8;

FIG. 10 is an enlarged view at B of FIG. 9;

FIG. 11 is a flow chart of a measurement method provided by some embodiments of the present application;

fig. 12 is a perspective view of an optical lens provided in some embodiments of the present application;

fig. 13 is a projection onto a light receiving lens according to other embodiments of the present disclosure.

An icon: 1-a measuring device; 10-a platform; 101-a placement area; 2-a projection measuring device; 21-a light emitting lens; 22-a light receiving lens; 3-positioning the part; 31-a first positioning boss; 32-a second positioning boss; 33-a third positioning boss; 34-a magnetic member; 4-adjusting the assembly; 41-a base; 42-a first slider; 421-a first lead screw; 43-a second slide; 431-a second lead screw; 44-a third slide; 441-a third screw rod; 45-a turntable; 5-a slitting device; 510-a first knife shaft; 511-a first blade; 5111-a first straight line segment; 5112-third straight line segment; 520-a second knife shaft; 521-a second blade; 5211-second straight line segment; 5212-fourth straight line segment; 530-inner sleeve; 540-coat; 550-a laser sensor; 6-sheet material; d-axial clearance; h-radial bite; x-a first direction; y-a second direction; z-third direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the foregoing drawings are used for distinguishing between different elements and not for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by a person skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "attached" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

The term "and/or" in this application is only one kind of association relationship describing the association object, and means that there may be three kinds of relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this application generally indicates that the former and latter related objects are in an "or" relationship.

The "plurality" appearing in the present application means two or more (including two), and similarly, "plural" means two or more (including two), and "plural" means two or more (including two).

At present, the application of power batteries is more and more extensive from the development of market conditions. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles and electric automobiles, and a plurality of fields such as military equipment and aerospace. With the continuous expansion of the application field of the power battery, the market demand is also continuously expanded.

The battery comprises a pole piece, and the pole piece is formed by cutting a sheet material through a cutting device.

The inventor notices that when measuring the relative position parameter between the first blade and the second blade of the cutting device, the conventional measuring method is to photograph the calibration object placed at the rated position by using a camera, calculate the proportional relation between the image and the entity by measuring and calculating the size parameter of the image of the calibration object and the size parameter of the entity of the calibration object through engineering software, then place the cutting device at the rated position, photograph the adjacent part of the first blade and the second blade, and then apply the proportional relation to the photographed image through the engineering software to calculate the measurement result of the entity. The size error of the image of the calibration object caused by the shooting angle of the calibration object, the deviation of the placing positions of the calibration object and the slitting device, and the difference between the size of the calibration object and the size of the slitting device can cause the error of the relative position parameter between the first blade and the second blade measured by the mode, so that the slitting effect of the slitting device on the sheet is influenced, and the quality of the slit pole piece is reduced.

Based on the consideration, the problem that the measurement error of the relative position parameter between the first blade and the second blade of the slitting device is large in the prior art is solved. The inventor designs a measuring device through intensive research, wherein two sides of a placing area for placing a cutting device on a platform are provided with projection measuring devices, each projection measuring device comprises a light-emitting lens and a light-receiving lens, the light-emitting lenses emit laser to project the adjacent parts of a first blade and a second blade on the light-receiving lenses, relative position parameters between the projection of the first blade and the projection of the second blade on the light-receiving lenses are close to the relative position parameters between the first blade entity and the second blade entity, and the relative position parameters between the projection of the first blade and the projection of the second blade can be measured through engineering software to obtain more accurate relative position parameters between the first blade and the second blade, so that errors of measuring results of the relative position parameters between the first blade and the second blade are reduced.

The measuring equipment and the measuring method disclosed by the embodiment of the application can be suitable for but not limited to the slitting process of the pole piece of the battery, and can also be suitable for the slitting process of other sheets.

According to some embodiments of the present application, as shown in fig. 1 to 2 and 5 to 6, the present application provides a measuring apparatus 1 for measuring a relative position parameter between a first blade 511 and a second blade 521 of a slitting device 5, the measuring apparatus 1 includes a platform 10 and a projection measuring device 2, the platform 10 includes a placing area 101 for placing the slitting device 5; the projection measuring device 2 comprises a light emitting lens 21 and a light receiving lens 22, wherein the light emitting lens 21 and the light receiving lens 22 are arranged on the platform 10 and are respectively positioned at two sides of the placing area 101, the light emitting lens 21 is used for emitting laser so as to project the adjacent parts of the first blade 511 and the second blade 521 onto the light receiving lens 22, and the light receiving lens 22 is used for obtaining the projection of the first blade 511 and the projection of the second blade 521 so as to measure the relative position parameter between the projection of the first blade 511 and the projection of the second blade 521.

The slitting device 5 comprises a first cutter shaft 510 and a second cutter shaft 520, and the first cutter shaft 510 and the second cutter shaft 520 are parallel to each other. The first blade 511 and the second blade 521 can be both disc cutters, the first blade 511 is sleeved on the first cutter shaft 510, the second blade 521 is sleeved on the second cutter shaft 520, the first cutter shaft 510 and the second cutter shaft 520 are driven by a driving part to rotate, and the first blade 511 and the second blade 521 rotate along with the rotation of the first cutter shaft 510 and the second cutter shaft 520. In the slitting operation, the sheet 6 passes between the first blade shaft 510 and the second blade shaft 520 while being slit by the first blade 511 and the second blade 521.

The first knife shaft 510 and the second knife shaft 520 rotate in opposite directions, and the first knife blade 511 and the second knife blade 521 contact with the sheet 6 while slitting the sheet 6, so that the sheet 6 is driven to pass through between the first knife shaft 510 and the second knife shaft 520.

The axial direction mentioned in the present application refers to the axial direction of the first and second blades 511 and 521, the second direction Y shown in fig. 1 is parallel to the axial direction of the first and second blades 511 and 521, and the radial direction mentioned in the present application refers to the direction of the shortest distance between the first and second blades 511 and 521, that is, the third direction Z shown in fig. 1, and the height direction of the platform 10 is parallel to the third direction Z.

The placement area 101 is located at the center of the top surface of the platform 10.

The laser light emitted from the light emitting lens 21 is perpendicular to the second direction Y and passes through between the first cutter shaft 510 and the second cutter shaft 520, so that the size of the projection of the adjacent portion of the first blade 511 and the second blade 521 received by the light receiving lens 22 can approach the physical size.

The adjacent portion mentioned in the present application includes an overlapping region of the first surface and the second surface, and the irradiation range of the laser light emitted from the light emitting lens 21 may include the adjacent portion between the first blade 511 and the second blade 521.

The area of the portion of the light receiving lens 22 for receiving the laser light may be larger than the irradiation area of the laser light so as to receive the laser light.

Laser emitted by the light emitting lens 21 is firstly irradiated on adjacent parts of the first blade 511 and the second blade 521, and then is irradiated on the light receiving lens 22, shadows of the adjacent parts of the first blade 511 and the second blade 521 are projected on the light receiving lens 22, in the projection process, the arrangement direction between the light emitting lens 21 and the light receiving lens 22 is perpendicular to the axial direction of the first blade 511 and the second blade 521, so that the size of the projection on the light receiving lens 22 can approach the actual size of the adjacent parts of the first blade 511 and the second blade 521, the engineering system measures the size of the projection, and the measured relative position parameter of the first blade projected on the second blade is the relative position parameter between the first blade entity and the second blade entity, so that the measurement error is reduced, and the measurement accuracy is improved.

According to some embodiments of the present application, as shown in fig. 2, the measuring apparatus 1 further includes a positioning portion 3, the positioning portion 3 is disposed on the platform 10, and the positioning portion 3 is used for positioning the slitting device 5.

The positioning part 3 refers to a part for positioning the slitting device 5 in the placement area 101 of the platform 10. The positioning part 3 can be a clamping device (such as a clamping jaw, a clamping plate and the like) driven by an elastic piece, and the positioning part 3 can clamp the slitting device 5 placed in the placing area 101 so as to fix the slitting device 5 on the platform 10; alternatively, the positioning portion 3 may be a clamping seat or a clamping block, which can cooperate with the cutting device 5 to fix the cutting device 5 on the platform 10.

After the slitting device 5 is placed in the placing area 101, the positioning part 3 positions the slitting device 5 to reduce the risk of relative movement between the slitting device 5 and the platform 10, so that the projection measuring device 2 can obtain a projection of the adjacent portions of the first blade 511 and the second blade 521.

According to some embodiments of the present application, as shown in fig. 2, the positioning portion 3 is at least partially disposed around the placement area.

The number of the positioning parts 3 may be one, and the positioning parts 3 surround the placing area 101; or the positioning part 3 may be a plurality of positioning parts 3, and the plurality of positioning parts 3 are arranged on the platform 10 at intervals around the placing area 101.

The positioning part 3 may be arranged around only a part of the placing area 101, and a notch is reserved around the placing area 101 so that the slitting device 5 can be pushed into the placing area 101 from the notch, thereby facilitating the assembly of the slitting device 5; the positioning part 3 can completely surround the placing area 101, and has a good positioning effect on the slitting device 5 placed in the placing area 101.

According to some embodiments of the present application, as shown in fig. 2, the positioning portion 3 includes a first positioning boss 31, a second positioning boss 32 and a third positioning boss 33, the first positioning boss 31 and the third positioning boss 33 are disposed opposite to each other along a first direction X, the first positioning boss 31 and the third positioning boss 33 both extend along a second direction Y, the second positioning boss 32 extends along the first direction X, one end of the first positioning boss 31 and one end of the third positioning boss 33 are both connected to the second positioning boss 32, and the first direction X is perpendicular to the second direction Y.

First location boss 31, second location boss 32 and third location boss 33 can all have the binding face, first location boss 31, second location boss 32 and third location boss 33 are all cut device 5 in order to be spacing to it through the binding face laminating, the binding face deviates from gradually from the top surface of platform 10 top surface to the location boss (can be first location boss 31, one in second location boss 32 and the third location boss 33) places district 101, in order to reduce the risk of cutting device 5 card in location portion 3.

Cut device 5 and get into first location boss 31 along second direction Y, in the space that second location boss 32 and third location boss 33 enclose, and with first location boss 31, the laminating of second location boss 32 and third location boss 33, location portion 3 can carry on spacingly to cutting device 5, detect the completion back, cut device 5 and prolong second direction Y again and leave first location boss 31, the space that second location boss 32 and third location boss 33 enclose, the locate mode is simple and quick, the operation is simple and easy.

According to some embodiments of the present application, as shown in fig. 2, the positioning portion 3 includes a magnetic member 34, the magnetic member 34 is disposed on the second positioning boss 32, and the magnetic member 34 is used for adsorbing the slitting device 5.

The magnetic material 34 is a member having a property of attracting a metal such as iron, nickel, or cobalt, and is generally a magnet.

The magnetic element 34 may be attached to the surface of the second positioning boss 32; alternatively, the magnetic member 34 may be mounted on the surface of the second positioning boss 32 by a fastener such as a bolt; or, the magnetic element 34 may be embedded inside the second positioning boss 32, and a through hole for exposing the magnetic element 34 is formed on the surface of the second positioning boss 32.

After the slitting device 5 enters the space surrounded by the first positioning boss 31, the second positioning boss 32 and the third positioning boss 33, the magnetic part 34 adsorbs the slitting device 5 to position the slitting device 5, the risk that the slitting device 5 is automatically separated from the placing area 101 along the second direction Y is reduced, and the positioning mode is simple and rapid.

According to some embodiments of the present disclosure, as shown in fig. 1, 4 to 6, the measuring apparatus 1 further includes two adjusting components 4, the adjusting components 4 are disposed on the platform 10, and the two adjusting components 4 are respectively used for adjusting positions and angles of the light emitting lens 21 and the light receiving lens 22.

After taking the projection of the adjacent portions of the first blade 511 and the second blade 521, the engineering software compares the projected dimension with the actual dimension of the first blade 511 and the second blade 521 (for example, the length of the first blade 511 in the axial direction of the first blade 511 and the second blade 521, the length of the second blade 521 in the axial direction of the first blade 511 and the second blade 521, and the like) to determine whether the direction of the laser light is perpendicular to the axial direction of the first blade 511 and the second blade 521 (if the projected dimension approaches the actual dimension, the direction of the laser light is perpendicular to the axial direction of the first blade 511 and the second blade 521, and if the projected dimension is greater than the actual dimension, the direction of the laser light is not perpendicular to the axial direction of the first blade 511 and the second blade 521), and when the direction of the laser light is not perpendicular to the axial direction of the first blade 511 and the second blade 521, the two adjusting units 4 adjust the angles of the light emitting lens 21 and the light receiving lens 22 so that the direction of the laser light is perpendicular to the axial direction of the first blade 511 and the second blade 521.

The two adjusting components 4 are respectively used for adjusting the positions of the light emitting lens 21 and the light receiving lens 22, so that the adjacent parts of the first blade 511 and the second blade 521 can be positioned in the laser; the two adjusting components 4 are further used for adjusting the angles of the light emitting lens 21 and the light receiving lens 22, so that the arrangement line of the light emitting lens 21 and the light receiving lens 22 can be perpendicular to the axial direction of the first blade 511 and the second blade 521, the size of the projection can approach to the size of the entity, and the measurement result is accurate.

According to some embodiments of the present application, as shown in fig. 6, the adjusting assembly 4 includes a base 41 and a first sliding block 42, the base 41 is disposed on the platform 10, the first sliding block 42 is slidably engaged with the base 41, the first sliding block 42 and the base 41 move relatively along a second direction Y, and the second direction Y is perpendicular to the height direction of the platform 10.

The contact position of the first sliding block 42 and the base 41 may be provided with a sliding structure (such as a sliding slot, a sliding rail, a sliding block, a roller, etc.) which is matched with each other.

The base 41 can be fixedly connected to the platform 10, so that the connection strength between the light-emitting lens 21 and the light-receiving lens 22 and the platform 10 is improved; alternatively, the base 41 may be removably attached (via screws, bolts, etc.) to the platform 10 for easy replacement.

The light emitting lens 21 and the light receiving lens 22 can move along with the first slider 42 in the second direction Y to change the position of the laser, so that the light emitting lens 21 and the light receiving lens 22 can be opposite to the adjacent parts of the first blade 511 and the second blade 521, and the projection of the adjacent parts which can contain the first blade 511 and the second blade 521 can be obtained, thereby facilitating the measurement.

According to some embodiments of the present application, as shown in fig. 6, the adjusting assembly 4 further includes a second slider 43, the second slider 43 is disposed on the first slider 42, the first slider 42 is slidably engaged with the second slider 43, the second slider 43 and the first slider 42 move relatively along a first direction X, and the first direction X, the second direction Y and the height direction of the platform 10 are perpendicular to each other.

The second slider 43 may be disposed on top of the first slider 42; alternatively, the second slider may be disposed on a side of the first slider 42 parallel to the first direction X.

The contact positions of the first slider 42 and the second slider 43 may be provided with sliding structures (such as sliding grooves, sliding rails, sliders, rollers, etc.) which are matched with each other.

The light emitting lens 21 and the light receiving lens 22 can move along with the second slider 43 in the first direction X to change the spacing distance between the light emitting lens 21 and the light receiving lens 22, so that the risk of collision between the light emitting lens 21 and the light receiving lens 22 when the cutting device 5 including the blades (the first blade 511 and the second blade 521) with larger diameters is placed in the placing area 101 is reduced.

According to some embodiments of the present application, as shown in fig. 6, the adjusting assembly 4 further includes a third slider 44, the third slider 44 is disposed on the second slider 43, the third slider 44 is slidably engaged with the second slider 43, and the third slider 44 and the second slider 43 move relatively along the height direction of the platform 10.

The third slider 44 may be disposed on top of the second slider 43; alternatively, the third slider 44 may be disposed on a side of the second slider 43.

The contact positions of the third slider 44 and the second slider 43 may be provided with sliding structures (such as sliding grooves, sliding rails, sliders, rollers, etc.) which are matched with each other.

The light emitting lens 21 and the light receiving lens 22 can move along with the third slider 44 in the height direction of the platform 10 to change the position of the laser, so that the light emitting lens 21 and the light receiving lens 22 can be opposite to the adjacent parts of the first blade 511 and the second blade 521, and the projection of the adjacent parts which can contain the first blade 511 and the second blade 521 can be obtained, thereby facilitating the measurement.

According to some embodiments of the present application, as shown in fig. 6, the adjusting assembly 4 further includes a turntable 45, the turntable 45 is rotatably connected to the third slider 44, the turntable 45 is used for mounting the light emitting lens 21 or the light receiving lens 22, and the turntable 45 rotates around the height direction of the platform 10.

The light emitting lens 21 or the light receiving lens 22 may be connected to the outer peripheral surface of the turret 45; alternatively, the light emitting lens 21 or the light receiving lens 22 may be attached at the center of the top surface of the turntable 45.

The light emitting lens 21 and the light receiving lens 22 can rotate along with the rotation of the turntable 45, the angle of the laser is changed, the direction of the laser is parallel to the axial direction of the first blade 511 and the second blade 521, the size of the projection on the light receiving lens 22 approaches the size of the entity, and further the relative position parameter between the projection of the first blade 511 and the projection of the second blade 521 can approach the relative position parameter between the entity of the first blade 511 and the entity of the second blade 521.

According to some embodiments of the present application, as shown in fig. 6, the adjusting assembly 4 further includes a first lead screw 421, a second lead screw 431, and a third lead screw 441, the first lead screw 421 is connected to the base 41 by a screw, the first lead screw 421 is connected to the first slider 42 by a rotation, and the first lead screw 421 is used for driving the first slider 42 to move along the second direction Y; the second lead screw 431 is in threaded connection with the first slide block 42, the second lead screw 431 is in rotational connection with the second slide block 43, and the second lead screw 431 is used for driving the second slide block 43 to move along the first direction X; the third screw 441 is in threaded connection with the second slider 43, the third screw 441 is in rotational connection with the third slider 44, and the third screw 441 is used for driving the second slider 43 to move along the height direction of the platform 10.

The first lead screw 421 is rotatably connected to the first slider 42, the first slider 42 may be connected to the first lead screw 421 through a bearing, or the first lead screw 421 is provided with a protrusion for limiting the first slider 42 to limit the first slider 42 to move along the first lead screw 421, when the first lead screw 421 rotates, the first lead screw 421 moves relative to the base 41 along the second direction Y, and the first slider 42 moves along the second direction Y along with the first lead screw 421.

The second screw 431 is rotatably connected to the second slider 43, and the second slider 43 may be connected to the second screw 431 through a bearing, or the second screw 431 is provided with a protrusion for limiting the second slider 43 to move along the second screw 431, when the second screw 431 rotates, the second screw 431 moves relative to the first slider 42 along the first direction X, and the second slider 43 moves along the first direction X along with the second screw 431.

The third lead screw 441 is rotatably connected to the third slider 44, and the third slider 44 may be connected to the third lead screw 441 through a bearing, or the third lead screw 441 is provided with a protrusion for limiting the third slider 44 to limit the third slider 44 from moving along the third lead screw 441, when the third lead screw 441 rotates, the third lead screw 441 moves relative to the second slider 43 along the third direction Z, and the third slider 44 moves along the third direction Z along with the third lead screw 441.

The first lead screw 421 drives the first slider 42 to move in the second direction Y, when the first lead screw 421 stops rotating, the first slider 42 is fixed on the base 41, the second lead screw 431 drives the second slider 43 to move in the first direction X, when the second lead screw 431 stops rotating, the second slider 43 is fixed on the first slider 42, the third lead screw 441 drives the third slider 44 to move in the height direction of the platform 10, and when the third lead screw 441 stops rotating, the third slider 44 is fixed on the second slider 43, so that the positions of the light-emitting lens 21 and the light-receiving lens 22 are adjusted and fixed, and the risk that the self-displacement of the light-emitting lens 21 and the light-receiving lens 22 affects the measurement result is reduced.

According to some embodiments of the application, the relative position parameter comprises axial clearance and/or radial bite.

The axial gap D between the first blade 511 and the second blade 521 of the slitting device 5 can affect the probability of burrs generated at the slit position of the sheet 6; the radial clearance H between the first blade 511 and the second blade 521 of the slitting device 5 can have an effect on the flatness of the slit of the sheet material 6.

The measuring device 1 can measure the axial gap D and/or the radial cutting depth H between the first blade 511 and the second blade 521 of the slitting device 5, so that an operator can replace the first blade 511 and the second blade 521 of the slitting device 5 or adjust the position of the first blade 511 and the second blade 521 according to the measurement result, and the slitting effect of the slitting device 5 on the sheet 6 is improved.

Further, as shown in fig. 7 to 10, after the measurement is completed, the slitting device 5 with the radial bite H not meeting the rated value needs to replace the first blade 511 and the second blade 521, so that the radial bite H of the newly replaced first blade 511 and second blade 521 meets the rated value; the slitting device 5 in which the axial gap D does not comply with the nominal value requires adjustment of the position of one of the first blade 511 or the second blade 521 so that the axial gap D between the first blade 511 and the second blade 521 complies with the nominal value.

Taking the position adjustment of the first blade 511 as an example, the slitting device 5 further includes an inner sleeve 530 and an outer sleeve 540, the inner sleeve 530 is sleeved on the first blade 510, the outer circumferential surface of the inner sleeve 530 is provided with threads, the outer sleeve 540 is sleeved on the outer circumferential surface of the inner sleeve 530 and is rotationally matched with the inner sleeve 530 through the threads, the first blade 511 is sleeved on the outer sleeve 540, the outer sleeve 540 rotates, the first blade 511 moves in the axial direction of the first blade 511 and the second blade 521 through the threads between the outer sleeve 540 and the inner sleeve 530, and the first blade 511 can move in the axial direction along with the outer sleeve 540, so as to adjust the axial gap D between the first blade 511 and the second blade 521.

Optionally, as shown in fig. 3, the slitting device 5 is further provided with two laser sensors 550, the two laser sensors 550 are respectively used for monitoring the jumping amplitude of the first blade 511 and the second blade 521 in the axial direction of the first blade 511 or the second blade 521 during the slitting operation of the slitting device 5, and when the jumping amplitude of the first blade 511 or the second blade 521 is too large, the slitting device 5 needs to be stopped to check the slitting quality of the slit part of the sheet 6.

According to some embodiments of the present application, as shown in fig. 11, the present application further provides a measuring method for measuring a relative position parameter between a first blade 511 and a second blade 521 of a slitting device 5, the measuring method comprising the steps of:

s100: the light emitting lens 21 emits laser to project the first blade 511 and the second blade 521 on the light receiving lens 22;

s200: by measuring the projections of the first blade 511 and the second blade 521 on the light receiving lens 22, a relative position parameter between the first blade 511 and the second blade 521 is obtained.

Before S100, S000: the dividing and cutting device 5 is placed between the light emitting lens 21 and the light receiving lens 22 of the projection measuring device 2 such that the axial direction of the dividing and cutting device 5 is perpendicular to the arrangement direction of the light emitting lens and the light receiving lens.

The axial direction of the slitting device 5 is the axial direction of the first blade 511 and the second blade 521 mentioned in this application.

Telecentric light (which can be regarded as parallel light) emitted by the light emitting lens 21 passes through a measured object (adjacent parts of the first blade 511 and the second blade 521), and then forms a projection at the light receiving lens 22, the engineering software firstly compares the thickness of the first blade 511 (or the second blade 521) (namely, the length in the axial direction of the first blade 511 and the second blade 521) in the measurement projection, and compares the measurement result with the thickness of the entity of the first blade 511 (or the second blade 521) (namely, the length in the axial direction of the first blade 511 and the second blade 521) so as to judge whether the laser direction is parallel to the opposite surface of the first blade 511 and the second blade 521. When the difference between the projected thickness dimension and the solid thickness dimension is within 2 μ, i.e. the telecentric ray is considered to be parallel to the overlap region, the relative position parameter between the projection of the first blade 511 and the projection of the second blade 521 is measured as the relative position parameter between the solid of the first blade 511 and the solid of the second blade 521.

The relative position parameter of the projection of the first blade 511 and the projection of the second blade 521 obtained by the measuring method approaches to the relative position parameter between the entity of the first blade 511 and the entity of the second blade 521, and the measuring result is more accurate.

According to some embodiments of the present application, as shown in fig. 12-13, the relative positional parameter includes an axial gap D; the projected profile of the first blade 511 includes a first straight line segment 5111, the projected profile of the second blade 521 includes a second straight line segment 5211, the interval distance between the first straight line segment 5111 and the second straight line segment 5211 along the second direction Y is the axial gap D, the first straight line segment 5111 and the second straight line segment 5211 have an overlapping portion in the third direction Z, the second direction Y is parallel to the extending direction of the axis of the first blade 511 or the second blade 521, the obtaining of the relative position parameter of the first blade 511 and the second blade 521 by measuring the projection of the first blade 511 and the second blade 521 on the light receiving lens 22 includes obtaining the axial gap D of the first blade 511 and the second blade 521 by measuring the interval distance between a first point F on the first straight line segment 5111 and a second point G on the second straight line segment 5211 in the second direction Y, wherein the first point F and the second point G are located outside the overlapping portion.

The first point F may be any point on the first straight line segment 5111 other than the overlapping portion, and the second point G may be any point on the second straight line segment 5211 other than the overlapping portion.

The first blade 511 has a first surface close to the second blade 521, and the second blade 521 has a second surface close to the first blade 511, the first surface is opposite to the second surface, a projection of the first surface on the light receiving lens 22 is a first straight line segment 5111, and a projection of the second surface on the light receiving lens 22 is a second straight line segment 5211.

The axial gap D is defined as a gap between the first straight line segment 5111 and the second straight line segment 5211 in the axial direction of the first blade 511 or the second blade 521.

The engineering software can directly measure the position parameters of the first point F and the second point G, and then calculate the distance between the first point F and the second point G in the axial direction of the first blade 511 or the second blade 521, which is the axial gap D between the first blade 511 and the second blade 521.

According to some embodiments of the present application, as shown in fig. 12-13, the relative positional parameters include axial clearance and radial bite; the obtaining of the relative position parameter of the first blade 511 and the second blade 521 by measuring the projection of the first blade 511 and the second blade 521 on the light receiving lens 22 includes obtaining a radial attack H by measuring a distance between a projection point (as shown in the figure, point C) of the blade edge of the first blade 511 and a projection point (as shown in the figure, point E) of the blade edge of the second blade 521 along a third direction Z, when the axial gap D exceeds a preset value, where the third direction Z is parallel to the extending direction of the first straight line segment 5111 or the second straight line segment 5211; when the axial clearance D does not exceed the preset value, determining the position parameter of the projection point (shown as a point C) of the cutting edge of the first blade 511 according to the projection profile parameter of the first blade 511, determining the position parameter of the projection point (shown as a point E) of the cutting edge of the second blade 521 according to the projection profile parameter of the second blade 521, and determining the radial bite H according to the position parameter of the projection point (shown as a point C) of the cutting edge of the first blade 511 and the position parameter of the projection point (shown as a point E) of the cutting edge of the second blade 521.

The blade edge is the edge of the blade used for cutting.

The length of the overlapping portion in the vertical direction (i.e., the third direction Z) is a radial bite H that is greater than the thickness of the sheet 6 (i.e., the length in the third direction Z) to ensure that the sheet 6 can be cut.

When the axial gap D does not exceed the preset value, the projection of the overlapping portion of the first straight line segment 5111 and the second straight line segment 5211 becomes blurred, and the projection point of the cutting edge of the first blade 511 (point C as shown) and the projection point of the cutting edge of the second blade 521 (point E as shown) become blurred.

When the axial clearance D exceeds a preset value, the engineering software can directly measure the position parameter of the projected point of the cutting edge of the first blade 511 (point C as shown in the figure) and the position parameter of the projected point of the cutting edge of the second blade 521 (point E as shown in the figure); when the axial clearance D does not exceed the preset value, the engineering software can calculate the position parameter of the projection point (shown as a point C) of the cutting edge of the first blade 511 according to the projection profile of the first blade 511, and calculate the position parameter of the projection point (shown as a point E) of the cutting edge of the second blade 521 according to the projection profile of the second blade 521. Then, the distance between the projected point of the edge of the first blade 511 (point C as shown) and the projected point of the edge of the second blade 521 (point E as shown) in the third direction Z is calculated, and the distance is the radial bite H between the first blade 511 and the second blade 521.

According to some embodiments of the present application, as shown in fig. 12, the determining the location parameter of the projected point (as shown in C) of the cutting edge of the first blade 511 according to the projected profile parameter of the first blade 511 includes determining the location parameter of the projected point (as shown in C) of the cutting edge of the first blade 511 according to the location parameters of the first straight line segment 5111 and the third straight line segment 5112 of the projected profile of the first blade 511, wherein the first straight line segment 5111 and the third straight line segment 5112 intersect with the projected point (as shown in C) of the cutting edge of the first blade 511.

The first blade 511 further has a third surface intersecting the first surface at the blade edge of the first blade, and a projection of the third surface on the light receiving lens 22 is a third straight line segment 5112.

The engineering software can measure the position parameter of the end point I of the projection point (as shown in the figure, point C) of the edge of the first blade 511 of the third straight line segment 5112, then calculate the length a of the third straight line segment 5112 in the third direction Z according to the included angle between the first straight line segment 5111 and the third straight line segment 5112, move the length a along the third direction Z starting from the position of the end point I of the projection point (as shown in the figure, point C) of the edge of the first blade 511 of the third straight line segment 5112, obtain the position parameter of the projection point (as shown in the figure, point C) of the edge of the first blade 511 in the third direction Z, and calculate the difference value between the position parameter of the projection point (as shown in the figure, point C) of the edge of the first blade 511 in the third direction Z and the position parameter of the projection point (as shown in the figure, point E) of the edge of the second blade 521 in the third direction Z, where the difference value is the radial blade amount H of the first blade 511 and the second blade 521.

According to some embodiments of the present application, as shown in fig. 13, the determining the position parameter of the projection point (shown as E point) of the cutting edge of the second blade 521 according to the parameter of the projection profile of the second blade 521 includes determining the position parameter of the projection point (shown as E point) of the cutting edge of the second blade 521 according to the position parameters of the second straight line segment 5211 and the fourth straight line segment 5212 of the projection profile of the second blade 521, wherein the second straight line segment 5211 and the fourth straight line segment 5212 intersect with the projection point (shown as E point) of the cutting edge of the second blade 521.

The second blade 521 further has a fourth surface, the fourth surface intersects with the second surface at the cutting edge of the second blade, and a projection of the fourth surface on the light receiving lens 22 is a fourth straight line segment 5212.

The engineering software may measure a position parameter of an end point I of a projection point (as shown in the figure E point) of the fourth straight line segment 5212, which is projected away from the cutting edge of the second blade 521, and then calculate a length b of the fourth straight line segment 5212 in the third direction Z according to an included angle between the second straight line segment 5211 and the fourth straight line segment 5212, and start from a position of the end point I of the projection point (as shown in the figure E point) of the projection point of the fourth straight line segment 5212, which is projected away from the cutting edge of the second blade 521, move by a length b in the third direction Z, so as to obtain a position parameter of the projection point (as shown in the figure E point) of the cutting edge of the second blade 521 in the third direction Z, and calculate a difference value between the position parameter of the projection point (as shown in the figure C point) of the cutting edge of the first blade 511 in the third direction Z and the position parameter of the projection point (as shown in the figure E point) of the cutting edge of the second blade 521 in the third direction Z, which is the radial draft H of the first blade 511 and the second blade 521.

During measurement, one pixel point of the projection can be subdivided into a plurality of gray values, and the projected edge is extracted/fitted by utilizing an algorithm (the specific algorithm can refer to Songhan. Image contour measurement method based on a sub-pixel edge detection model. Computer knowledge and technology 2022 (8): vol.18, no.23, 81 to 83), so that higher-precision measurement is realized. Meanwhile, when foreign matters appear on the fitting boundary of the algorithm (namely, when foreign matters appear on the surface of the first blade 511 or the second blade 521 projected on the light receiving lens 22), the boundary is vertically mutated, and the algorithm can filter out the mutated value and reduce the influence on the measurement result.

According to some embodiments of the present application, as shown in fig. 1 to 2 and 4 to 6, the present application provides a measuring apparatus 1 for measuring a relative position parameter between a first blade 511 and a second blade 521 of a splitting device 5, where the first blade 511 is an upper blade and the second blade 521 is a lower blade, the measuring apparatus 1 includes a platform 10, a projection measuring device 2, a positioning portion 3 and two adjusting components 4, the platform 10 includes a placing area 101 for placing the splitting device 5, the projection measuring device 2 includes a light emitting lens 21 and a light receiving lens 22, the light emitting lens 21 and the light receiving lens 22 are oppositely disposed along a first direction X, the placing area 101 is located between the light emitting lens 21 and the light receiving lens 22, and the light emitting lens 21 emits laser light to project an adjacent portion of the first blade 511 and the second blade 521 onto the light receiving lens 22; the light-emitting lens 21 and the light-receiving lens 22 are respectively arranged on the platform 10 through an adjusting component 4, and the two adjusting components 4 are used for adjusting the positions and angles of the light-emitting lens 21 and the light-receiving lens 22; the positioning part 3 is arranged on the platform 10 around the placing area 101, the positioning part 3 is used for positioning the slitting device 5, the positioning part 3 further comprises a magnetic part 34, one part of the magnetic part 34 is embedded in the inner side of the positioning part 3, and the other part of the magnetic part 34 extends out of the positioning part 3 and is in contact with the slitting device 5.

The light receiving lens 22 can receive the laser light of the light emitting lens 21 to obtain the projection of the first blade 511 and the projection of the second blade 521, and the engineering software can measure the relative position parameter between the projection of the first blade 511 and the projection of the second blade 521 on the light receiving lens 22, so as to obtain the relative position parameter between the first blade 511 and the second blade 521. The projection approaching to the physical size is obtained through laser to measure, and the measurement error is small.

According to some embodiments of the present application, as shown in fig. 11 to 13, the present application further provides a measuring method for measuring relative position parameters between a first blade 511 and a second blade 521 of a slitting device 5, the relative position parameters including an axial clearance and a radial bite, the measuring method comprising the steps of:

s000, placing the cutting device 5 between the light-emitting lens 21 and the light-receiving lens 22 of the projection measuring device 2, and enabling the axial direction of the cutting device 5 to be perpendicular to the arrangement direction of the light-emitting lens and the light-receiving lens;

s100: the light emitting lens 21 emits laser light to project the adjacent portions of the first blade 511 and the second blade 521 onto the light receiving lens 22;

s200: by measuring the projection on the light receiving lens 22, the axial gap D and the radial clearance H between the first blade 511 and the second blade 521 are obtained.

The projection of the first blade 511 on the light receiving lens 22 includes a first straight line segment 5111, the second blade 521 includes a second straight line segment 5211, and the first straight line segment 5111 and the second straight line segment 5211 have an overlapping portion. The axial clearance D of the first blade 511 and the second blade 521 is obtained by measuring the distance between a first point F on the first straight line segment 5111, which is located outside the overlapping region, and a second point G on the second straight line segment 5211, which is located outside the overlapping region. When the axial clearance D exceeds a preset value, the position parameter of the projected point of the blade edge of the first blade 511 (point C as shown in the figure) and the position parameter of the projected point of the blade edge of the second blade 521 (point E as shown in the figure) can be directly measured to determine the radial bite H of the first blade 511 and the second blade 521; when the axial clearance D does not exceed the preset value, the position parameter of the projected point (as shown in the figure, point C) of the blade edge of the first blade 511 is determined according to the projected profile of the first blade 511, the position parameter of the projected point (as shown in the figure, point E) of the blade edge of the second blade 521 is determined according to the projected profile of the second blade 521, and the radial bite H of the first blade 511 and the second blade 521 is obtained according to the position parameter of the projected point (as shown in the figure, point C) of the blade edge of the first blade 511 and the position parameter of the projected point (as shown in the figure, point E) of the blade edge of the second blade 521. This measurement method can calculate the position information of the projected point (as shown in the figure, point C) of the edge of the first blade 511 and the projected point (as shown in the figure, point E) of the edge of the second blade 521 by measuring the projected profile of the first blade 511 and the projected profile of the second blade 521 when the axial gap D does not exceed a preset value and the projected points (as shown in the figure, point C) of the edge of the first blade 511 and the projected profile of the edge of the second blade 521 (as shown in the figure, point E) are blurred, thereby obtaining the radial bite H of the first blade 511 and the second blade 521, and improving the accuracy of measuring the radial bite H of the first blade 511 and the second blade 521 of the slitting device 5.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (17)

1. A measuring device for measuring a relative positional parameter between a first blade and a second blade of a slitting device, characterized in that the measuring device comprises:

the platform comprises a placing area for placing the cutting device;

the projection measuring device comprises a light-emitting lens and a light-receiving lens, wherein the light-emitting lens and the light-receiving lens are arranged on the platform and are respectively positioned on two sides of the placement area, the light-emitting lens is used for emitting laser so as to project the first blade and the second blade onto the light-receiving lens, and the light-receiving lens is used for obtaining the projection of the first blade and the projection of the second blade so as to measure the relative position parameter between the projection of the first blade and the projection of the second blade.

2. The measuring apparatus according to claim 1, further comprising a positioning portion provided on the platform, the positioning portion being configured to position the slitting device.

3. The measurement device of claim 2, wherein the positioning portion is disposed at least partially around the placement area.

4. The measurement apparatus according to claim 3, wherein the positioning portion includes a first positioning boss, a second positioning boss, and a third positioning boss, the first positioning boss and the third positioning boss are disposed opposite to each other in a first direction, the first positioning boss and the third positioning boss both extend in a second direction, the second positioning boss extends in the first direction, one end of the first positioning boss and one end of the third positioning boss are both connected to the second positioning boss, the first direction is parallel to an arrangement direction of the light emitting lens and the light receiving lens, the second direction is parallel to an axial direction of the first blade or the second blade, and the first direction is perpendicular to the second direction.

5. The measuring device according to claim 4, wherein the positioning portion comprises a magnetic member, the magnetic member is disposed on the second positioning boss, and the magnetic member is used for adsorbing the slitting device.

6. The measuring apparatus according to claim 1, further comprising two adjusting members disposed on the platform, wherein the two adjusting members are respectively used for adjusting the position and the angle of the light-emitting lens and the light-receiving lens.

7. The measurement apparatus according to claim 6, wherein the adjustment assembly includes a base and a first slider, the base is disposed on the platform, the first slider is slidably engaged with the base, and the first slider and the base move relatively in a second direction perpendicular to a height direction of the platform.

8. The measuring device of claim 7, wherein the adjusting assembly further comprises a second slider, the second slider is disposed on the first slider, the first slider is in sliding fit with the second slider, the second slider and the first slider move relatively along a first direction, and the first direction, the second direction and the height direction of the platform are perpendicular to each other.

9. The measuring apparatus according to claim 8, wherein the adjusting assembly further comprises a third slider, the third slider is disposed on the second slider, the third slider is slidably engaged with the second slider, and the third slider and the second slider move relatively in a height direction of the platform.

10. The measuring apparatus according to claim 9, wherein the adjusting assembly further comprises a turntable rotatably connected to the third slider, the turntable being configured to mount the light emitting lens or the light receiving lens, the turntable being rotatable about an axis parallel to a height direction of the stage.

11. The measuring apparatus according to claim 9, wherein the adjusting assembly further comprises a first lead screw, a second lead screw and a third lead screw, the first lead screw is in threaded connection with the base, the first lead screw is in rotational connection with the first slider, and the first lead screw is used for driving the first slider to move along the second direction;

the second screw rod is in threaded connection with the first sliding block, is in rotary connection with the second sliding block and is used for driving the second sliding block to move along the first direction;

the third screw rod is in threaded connection with the second sliding block, the third screw rod is in rotary connection with the third sliding block, and the third screw rod is used for driving the second sliding block to move along the height direction of the platform.

12. A measuring device according to claim 1, characterized in that the relative position parameters comprise axial clearance and/or radial bite.

13. A method for measuring a relative positional parameter between a first blade and a second blade of a slitting device, comprising the steps of:

the light-emitting lens emits laser to project the first blade and the second blade onto a light-receiving lens;

and obtaining a relative position parameter between the first blade and the second blade by measuring the projection of the first blade and the second blade on the light receiving lens.

14. The measurement method according to claim 13,

the relative position parameter comprises an axial clearance; the projected contour of the first blade comprises a first straight line segment, the projected contour of the second blade comprises a second straight line segment, the interval distance between the first straight line segment and the second straight line segment along a second direction is the axial gap, the first straight line segment and the second straight line segment have an overlapping part in the second direction, and the second direction is parallel to the extending direction of the axis of the first blade or the second blade;

the obtaining of the relative position parameter between the first blade and the second blade by measuring the projection of the first blade and the second blade on the light receiving lens includes:

obtaining an axial clearance of the first blade and the second blade by measuring a separation distance in the second direction between a first point on the first straight line segment and a second point on the second straight line segment, wherein the first point and the second point are both located outside the overlapping portion.

15. The measurement method of claim 14, wherein the relative positional parameters include axial clearance and radial bite;

the obtaining of the relative position parameter between the first blade and the second blade by measuring the projection of the first blade and the second blade on the light receiving lens includes:

when the axial clearance exceeds a preset value, obtaining the radial cutting allowance by measuring a spacing distance between a projection point of the cutting edge of the first blade and a projection point of the cutting edge of the second blade along a third direction, wherein the third direction is parallel to the extending direction of the first straight line segment or the second straight line segment;

when the axial clearance does not exceed the preset value, determining the position parameter of the projection point of the cutting edge of the first blade according to the projection profile parameter of the first blade, determining the position parameter of the projection point of the cutting edge of the second blade according to the projection profile parameter of the second blade, and determining the radial cutting load according to the position parameter of the projection point of the cutting edge of the first blade and the position parameter of the projection point of the cutting edge of the second blade.

16. The measurement method according to claim 15,

the determining the position parameter of the projection point of the cutting edge of the first blade according to the projection profile parameter of the first blade comprises:

and determining the position parameters of the projection points of the cutting edge of the first blade according to the position parameters of a first straight line segment and a third straight line segment of the projection profile of the first blade, wherein the first straight line segment and the third straight line segment are intersected at the projection points of the cutting edge of the first blade.

17. The measurement method according to claim 15,

the determining the position parameter of the projection point of the cutting edge of the second blade according to the projection profile parameter of the second blade comprises:

and determining the position parameters of the projection points of the cutting edge of the second blade according to the position parameters of a second straight line segment and a fourth straight line segment of the projection profile of the second blade, wherein the second straight line segment and the fourth straight line segment are intersected at the projection points of the cutting edge of the second blade.

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