CN114279359A - Measuring device and measuring method for lead - Google Patents
Measuring device and measuring method for lead Download PDFInfo
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- CN114279359A CN114279359A CN202111599826.0A CN202111599826A CN114279359A CN 114279359 A CN114279359 A CN 114279359A CN 202111599826 A CN202111599826 A CN 202111599826A CN 114279359 A CN114279359 A CN 114279359A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 238000005303 weighing Methods 0.000 claims abstract description 20
- 238000000691 measurement method Methods 0.000 claims 6
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003703 image analysis method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention provides a measuring device and a measuring method of a lead, wherein the measuring device comprises: the weighing unit is used for acquiring the weight of the lead to be measured; a profile scanning unit for scanning the profile of the conductive line; a length measuring unit for measuring the length of the wire; and the calculating unit is respectively connected with the weighing unit, the contour scanning unit and the length measuring unit and is used for calculating the pitch-diameter ratio and/or the meter weight of the lead according to the weight, the contour and the length. The device can realize the automatic measurement and data uploading of the pitch diameter ratio of the wire and the meter weight, overcomes the defects of pure labor, pure manual operation, large error and easy error in the prior art, and improves the measurement efficiency and the measurement accuracy.
Description
Technical Field
The invention relates to the technical field of detecting instruments, in particular to a measuring device and a measuring method for a lead.
Background
Wires are devices used for power transmission, typically formed by stranding wire conductors. The pitch-diameter ratio and the meter weight of the wire are important parameter indexes of the wire. Wherein, the pitch-diameter ratio reflects the tightness of the twisting of the wire, and the meter weight reflects the unit weight of the wire. Therefore, the measurement of the pitch diameter ratio and the meter weight of the lead becomes a necessary link before the lead leaves a factory.
In the prior art, the pitch diameter ratio and the meter weight of the wire are measured in a pure manual mode, so that the working efficiency is low, the error of the measurement result is large, and errors are easily generated in the calculation and input links.
Disclosure of Invention
The present invention is directed to a measuring device and a measuring method for a wire, so as to solve the above technical problems in the prior art.
The invention provides a measuring device of a lead, which comprises:
the weighing unit is used for acquiring the weight of the lead to be measured;
a profile scanning unit for scanning the profile of the conductive line;
a length measuring unit for measuring the length of the wire;
and the calculating unit is respectively connected with the weighing unit, the contour scanning unit and the length measuring unit and is used for calculating the pitch-diameter ratio and/or the meter weight of the lead according to the weight, the contour and the length.
Further, still include a frame, the frame includes:
and the bearing structure is used for placing the lead.
The weighing unit, the profile scanning unit and the length measuring unit are arranged on the rack.
Further, the bearing structure includes:
the first clamp is arranged at one end of the bearing structure and used for clamping one end of the lead;
and the second clamp is arranged at one end of the bearing structure, which is back to the first clamp, and is used for clamping the other end of the wire.
Further, the bearing structure further comprises a first push-pull element, and the first push-pull element is connected between the rack and the second clamp and used for pushing the second clamp towards the direction back to the first clamp along the length direction of the lead when the lead is placed on the bearing structure.
Furthermore, the bearing structure further comprises an auxiliary straightening component, which is arranged between the first clamp and the second clamp and used for supporting the lead from the lower part of the lead.
Further, the auxiliary straightening component comprises:
the supporting part is arranged below the corresponding position when the lead is placed on the bearing structure;
the first limiting structures are arranged on two sides of the corresponding position when the lead is placed on the bearing structure;
and the second push-pull element is connected with the bearing part and the first limiting structure and used for pushing the bearing part and the first limiting structure upwards from an initial position to an alignment position.
Further, the contour scanning unit includes;
the moving mechanism is arranged above the bearing structure, and the moving direction of the moving mechanism is the same as the length direction of the conducting wire when the conducting wire is placed on the bearing structure;
and the contour scanning component is connected to the moving mechanism.
Furthermore, the moving mechanism comprises one of an electric screw guide rail, an electric rack guide rail, an electric chain wheel guide rail and an electric belt pulley guide rail.
Further, the profile scanning component includes a laser scanner.
Further, the length measuring unit includes:
the second limiting structure is arranged at one end, corresponding to the first clamp, of the bearing structure and used for limiting the relative position of one end, corresponding to the second limiting structure, of the lead and the bearing structure;
and the length measuring component is arranged at one end of the bearing structure, which is back to the second limiting structure, and is used for measuring the relative position of one end of the lead, which is back to the second limiting structure, and the bearing structure when the lead is placed on the bearing structure.
Further, the length measuring part includes:
the image acquisition element is arranged above the bearing structure and is connected with the first push-pull element;
the scale element is arranged at one end of the bearing structure, which is back to the second limiting structure, and is positioned in the acquisition view field of the image acquisition element;
and the light source element is arranged at one end of the bearing structure, which is back to the second limiting structure.
Further, the computing unit is disposed in a management system.
Also provided is a method for measuring a wire, comprising:
providing a weighing unit to obtain the weight of a lead to be measured;
providing a profile scanning unit to obtain the profile of the conducting wire;
providing a length measuring unit to obtain the length of the lead;
and providing a calculating unit to calculate the pitch-diameter ratio and/or the meter weight of the lead according to the weight, the contour and the length.
Further, the step of obtaining the profile of the wire comprises:
scanning the outline of the lead and intercepting a first outline image of the lead;
rotating the wire by a preset angle along the circumferential direction of the end face of the wire;
and scanning the outline of the lead and intercepting a second outline image of the lead.
Further, the step of calculating the pitch-diameter ratio of the wire comprises:
acquiring the pitch of the conducting wire according to the first contour image;
acquiring diameter values of the guide line at each first position at a first preset number of first positions on the first contour image;
acquiring the diameter value of the guide line at each second position at a second preset number of second positions on the second contour image;
adding the sum of the diameter values of the first location and the second location and dividing the sum by the sum of the first predetermined number and the second predetermined number to obtain the diameter of the guidewire;
and obtaining the pitch-diameter ratio of the wire according to the pitch and the diameter.
Further, the first predetermined number is 2, 3, 4, 5 or 6; and/or
The second predetermined number is 2, 3, 4, 5 or 6.
Further, the predetermined angle is 30 degrees, 45 degrees, 60 degrees, or 90 degrees.
Further, the step of obtaining the length of the wire comprises:
providing a bearing structure with a preset length, arranging a limiting structure with a preset distance from the bearing structure at one end of the bearing structure, placing the lead on the bearing structure, enabling one end of the lead to abut against the limiting structure, measuring the distance of the end, back to the limiting structure, of the lead extending out of the bearing structure, and taking the sum of the preset length, the preset distance and the distance of the end, back to the limiting structure, of the lead extending out of the bearing structure as the length of the lead.
Further, the step of calculating the meter weight of the wire comprises:
dividing the weight of the wire by the length of the wire in meters to obtain the meter weight of the wire.
Further, before the step of obtaining the profile of the conducting wire and the step of obtaining the length of the conducting wire are executed, the method further comprises the step of straightening the conducting wire.
The measuring device for the wire provided by the invention can realize the automatic measurement and data uploading of the pitch diameter ratio and the meter weight of the wire, overcomes the defects of pure labor, pure manual operation, large error and easy error in the prior art, and improves the measuring efficiency and the measuring accuracy.
The method for measuring the wire can realize the automatic measurement and data uploading of the pitch diameter ratio and the meter weight of the wire, overcomes the defects of pure labor, pure manual operation, large error and easy error in the prior art, and improves the measurement efficiency and the measurement accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a measuring device provided in the present invention;
FIG. 2 is a block diagram of an embodiment of a measuring device provided by the present invention;
FIG. 3 is a block diagram of a first fixture of an embodiment of a measuring device provided by the present invention;
FIG. 4 is a schematic diagram of a second clamp and a first push-pull element of an embodiment of the measuring device provided by the present invention;
FIG. 5 is a block diagram of a profile scanning unit of an embodiment of a measurement device provided by the present invention;
FIG. 6 is a block diagram of a length measuring unit of an embodiment of the measuring device provided by the present invention;
fig. 7 is a structural diagram of an auxiliary straightening component of an embodiment of the measuring device provided by the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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 an embodiment of the present invention, as shown in fig. 1, a conducting wire measuring apparatus is provided, which may include:
a weighing unit 200 for acquiring the weight of the wire to be measured;
a profile scanning unit 300 for scanning the profile of the conductive line;
a length measuring unit 400 for measuring the length of the conductive wire;
a calculating unit 500 connected to the weighing unit, the profile scanning unit 300 and the length measuring unit 400 respectively for calculating the pitch-diameter ratio of the wire or the meter weight of the wire according to the weight, the profile and the length.
In the technical scheme, a wire is weighed by the weighing unit 200, the weighed weight of the wire is automatically uploaded to the calculating unit 500 by the weighing unit 200, then the wire is scanned by the profile scanning unit 300, an obtained profile image is automatically uploaded to the calculating unit 500 by the profile scanning unit 300, then the length of the wire is measured by the length measuring unit 400, the obtained length of the wire is automatically uploaded to the calculating unit 500 by the length measuring unit 400, and finally the pitch-diameter ratio of the wire or the meter weight of the wire is calculated by the calculating unit 500 according to the weight, the profile and the length of the wire.
In the above technical solution, the calculating unit 500 may be disposed at the same position as the weighing unit 200, the profile scanning unit 300 and the length measuring unit 400, and connected via a signal cable, or connected via a wireless communication manner, such as a wireless lan, a mobile network, a near field communication, a bluetooth, a zigbee network, or a combination of several connection manners.
In a preferred embodiment, as shown in fig. 2, further comprising a frame 600, the frame 600 may comprise:
a carrier structure 700, the carrier structure 700 is used for placing the conductive wires 100.
The weighing unit 200, the profile scanning unit 300, and the length measuring unit 400 are disposed on the frame.
In this embodiment, the supporting structure 700 disposed in the rack 600 may be used to place the wires 100, and the weighing unit 200 may be directly integrated with the supporting structure 700 into a single structure, for example, the supporting structure 700 is directly disposed on the weighing component of the weighing unit 200, or may be disposed in two separate structures as shown in fig. 2. The supporting structure 700 can be used as a scanning platform of the profile scanning unit 300 and as a measuring platform of the length measuring unit 400, so that the wire 100 is not repeatedly moved during the profile scanning and the length measuring. Further, the computing unit 500 may be disposed in the rack 600, or may be disposed at a location remote from the rack 600.
Based on the above technical solution, further, the bearing structure 700 may include:
a first clamp 710 disposed at one end of the supporting structure 700 for clamping one end of the conductive wire 100;
a second clamp 720 is disposed at an end of the supporting structure 700 opposite to the first clamp 710 for clamping the other end of the conductive wire 100.
In this embodiment, one end of the wire 100 can be clamped by the first clamp 710, and the other end of the wire 100 can be clamped by the second clamp 720, so that the wire 100 is fixed on the supporting structure 700, thereby facilitating the profile scanning unit 300 to perform the profile scanning on the wire, and the wire 100 can be kept stable when the length measuring unit 400 performs the length measurement on the wire 100.
On the basis of the above technical solution, further, as shown in fig. 3, the first clamp 710 may include: a first lifting member 711, a first upper clamping member 712, and a first lower clamping member 713. The first lifting element 711 is connected to the frame 600, the first upper clamping member 712 is connected to the first lifting element 711, the first upper clamping member 712 is further connected to the frame 600 through a first sliding rail 714 having an extending direction the same as the lifting direction of the first lifting element 711, that is, the first sliding rail 714 is fixedly disposed on the frame 600, the first upper clamping member 712 is slidably connected to the first sliding rail 714 and connected to the first lifting element 711, the lower clamping member 713 is fixedly disposed on the frame 600 and corresponds to the upper clamping member 712, the wire 100 can be placed on the lower clamping member 173, and the lifting element 711 moves downward to move the upper clamping member 712 downward along the first sliding rail 714 until the wire 100 is clamped under the engagement of the lower clamping member 713.
As an alternative embodiment, the first elevating member 711 may be one of a hydraulic cylinder, an air cylinder, and an electric cylinder.
The second clamp 720 may be implemented in the same manner as the first clamp 710, and will not be described herein.
On this basis, further, as shown in fig. 4, the bearing structure 700 may further include a first push-pull element 730, wherein the first push-pull element 730 is connected between the frame 600 and the second clamp 720, and is used for pushing the second clamp 720 in a direction away from the first clamp 710 along the length direction of the lead 100 when being placed on the bearing structure 700.
In this technical solution, a second slide rail 731 may be disposed on the rack 600, the second clamp 720 may be slidably connected to the second slide rail 731 and connected to the first push-pull element 730, when the first clamp 710 and the second clamp 720 both clamp the wire 100, the first push-pull element 730 may push the second clamp 720 along the second slide rail 731, so that the second clamp 720 moves towards a direction away from the first clamp 710 while clamping the wire 100, so that the wire 100 is stretched, thereby straightening the wire 100.
As an alternative embodiment, the first push-pull member 730 may be one of a hydraulic cylinder, an air cylinder, and an electric cylinder.
Based on this, the supporting structure 700 may further include an auxiliary alignment member 740 disposed between the first clamp 710 and the second clamp 720 for supporting the conductive wire 100 from below the conductive wire 100.
When the wire 100 is clamped by the first clamp 710 and the second clamp 720, the middle of the wire 100 may sag due to the influence of gravity, so that the wire 100 is bent, and the auxiliary alignment member 740 holds the wire 100 between the first clamp 710 and the second clamp 720, so as to reduce the force required by the second clamp 720 to align the wire 100 under the action of the first push-pull element 730, thereby preventing the deformation of the portion of the wire 100 clamped by the second clamp 720 due to the excessive force applied by the second clamp 720 to the wire 100.
Based on this, further, as shown in fig. 7, the auxiliary alignment member 740 may include:
a supporting member 741, disposed below a corresponding position of the lead 100 when the lead 100 is placed on the supporting structure 700, for supporting the lead 100 from below when the lead 100 is aligned;
a first limiting structure 742 disposed at two sides of a corresponding position of the wire 100 when the wire 100 is placed on the supporting structure 700 for limiting the wire 100 from separating from two sides of the supporting member 741 when the wire 100 is aligned;
preferably, the supporting member 741 is disposed at a close distance from the first limiting structure 742, as in the embodiment shown in fig. 7, the first limiting structure 742 abuts against the supporting member 741, in the embodiment shown in fig. 7, the first limiting structure 742 includes a pair of guiding rollers through which the wire can pass, the supporting member 741 includes a pair of rollers supported by ear plates, and the first limiting structure 742 and the supporting member 741 are implemented by using rollers, so as to prevent the wire 100 from moving in a length direction when being stretched and aligned, and from rubbing and damaging a surface of the wire.
A second push-pull element 743 is connected to the supporting member 741 and the first limiting structure 742 for pushing the supporting member 741 and the first limiting structure 742 from an initial position to an aligned position. And also serves to pull the supporting member 741 and the first restraining structure 742 from the aligned position downward to the initial position. This embodiment allows wire 100 to be placed into rack 600 or removed from rack 600 without being blocked by secondary alignment member 740.
As an alternative embodiment, the first push-pull element 743 can be one of a hydraulic cylinder, an air cylinder, and an electric cylinder.
In a preferred embodiment, as shown in conjunction with FIG. 5, the profile scanning unit 300 may include;
a moving mechanism 310 disposed above the supporting structure 700, wherein a moving direction of the moving mechanism 310 is the same as a length direction of the conducting wire 100 when the conducting wire 100 is placed on the supporting structure 700;
a contour scanning component 320 is coupled to the moving mechanism 310.
In this embodiment, the profile scanning component 320 can controllably move on the moving mechanism 310 along the length direction of the lead 100, so as to scan the area of the lead 100 corresponding to the length of the moving mechanism 310, and the calculating unit 500 can analyze and calculate a plurality of positions of the lead 100 after acquiring the profile scanning image of the lead 100.
As an alternative embodiment, the moving mechanism 310 may include one of a motorized screw rail, a motorized rack rail, a motorized sprocket rail, and a motorized pulley rail.
Further, on this basis, the profile scanning unit 320 may include a laser scanner.
In a preferred embodiment, as shown in fig. 6, the length measuring unit 400 may include:
a second limiting structure 410, disposed at an end of the carrying structure 700 corresponding to the first clamp 710, for limiting a relative position between an end of the wire 100 corresponding to the second limiting structure 410 and the carrying structure 700;
a length measuring component 420 disposed at an end of the supporting structure 700 opposite to the second limiting structure 410 for measuring a relative position between the end of the conducting wire 100 opposite to the second limiting structure 410 and the supporting structure 700 when the conducting wire is placed on the supporting structure 700.
In this technical solution, the position between the second limiting structure 410 and the end of the carrying structure 700 corresponding to the first clamp 710 is fixed, that is, the distance between the second limiting structure 410 and the end of the carrying structure 700 corresponding to the first clamp 710 is fixed, and the length of the carrying structure 700 is also fixed, that is, the distance between the second limiting structure 410 and the end of the carrying structure 700 corresponding to the first clamp 710 is known in advance with the length of the carrying structure 700, so that the length of the wire 100 can be obtained by the length measuring component 420 only by measuring the length of the wire 100 extending out of the end of the carrying structure 700 corresponding to the second clamp.
On this basis, further, length measurement part 420 includes:
an image capturing element 421 disposed above the supporting structure 700 and connected to the first push-pull element 730;
a scale element 422, disposed at an end of the carrying structure 700 facing away from the second limiting structure 410, and located in the capturing view of the image capturing element 421;
a light source element 423 disposed at an end of the supporting structure 700 opposite to the second limiting structure 410.
In this embodiment, the scale element 422 may be used to mark the length of the end of the wire 100 extending out of the supporting structure 700 corresponding to the second clamp 720, preferably, the scale element 422 may directly mark the absolute length of the wire 100, and may also mark the relative length of the end of the wire 100 extending out of the supporting structure 700 corresponding to the second clamp 720; the image capturing element 421 can capture images of the wire 100 and the scale element 422; the light source device 423 provides light for the image capturing device 421 to capture an image, so that the image capturing device 421 has good ambient light when capturing the image, and a small-aperture lens can be used to capture an image with a larger depth of field.
In a preferred embodiment, the computing unit 500 may be disposed in a management system. The management system may be a manufacturing execution system of a factory or a cloud platform, and the computing unit 500 may include an image analysis module to analyze a profile image of the wire to obtain a pitch and a diameter of the wire. On this basis, the computing unit 500 may include an image recognition module that recognizes the length of the scale element 422 corresponding to the marked end of the wire 100 by analyzing the image of the end of the wire 100 and the scale element 422. On this basis, the calculation unit 500 may further include a calculation module for calculating a pitch-to-diameter ratio of the wire 100 according to the obtained pitch and diameter of the wire 100, and calculating a meter weight of the wire 100 according to the weight and length of the wire 100. In a further preferred embodiment, the management system may further include a storage unit for storing the pitch-diameter ratio and the meter weight of the wire 100.
In the technical solution of the present invention, there is further provided a method for measuring a wire, where the method may include:
providing a weighing unit to obtain the weight of a lead to be measured;
providing a profile scanning unit to obtain the profile of the conducting wire;
providing a length measuring unit to obtain the length of the conducting wire;
providing a calculating unit to calculate the pitch diameter ratio or the meter weight of the wire according to the weight, the contour and the length. Or comprises the step of providing a calculating unit to calculate the pitch-diameter ratio and the meter weight of the wire according to the weight, the contour and the length.
In a preferred embodiment, the step of obtaining the profile of the wire may comprise:
scanning the outline of the wire and intercepting a first outline image of the wire;
rotating the lead by a preset angle along the circumferential direction of the end face of the lead;
scanning the outline of the conducting wire and intercepting a second outline image of the conducting wire.
Since the cross section of the wire is not perfectly circular, the wire can be rotated in the circumferential direction of the end face to obtain the profiles of the wire at different angles. In the above-mentioned manner, the wire is rotated only once, and the wire can also be rotated multiple times to obtain the profile of the wire with more angles.
On the basis, the step of calculating the pitch-diameter ratio of the wire may further comprise:
the pitch of the conducting wire can be obtained according to the first contour image;
acquiring the diameter value of the guide line at each first position at a first preset number of first positions on the first contour image;
acquiring the diameter value of the guide line at each second position at a second preset number of second positions on the second contour image;
adding the sum of the diameter values of the first position and the second position and dividing the sum by the sum of the first preset number and the second preset number to obtain the diameter of the lead;
and obtaining the pitch-diameter ratio of the wire according to the pitch and the diameter.
In the technical scheme, the pitch of the lead can be obtained from the contour image of the lead by an image analysis method, on the basis, the diameter value of the lead corresponding to each position can be obtained by respectively selecting a plurality of positions in the contour images of the leads and analyzing, and the diameter value of the lead with the section not being a perfect circle can be obtained by an averaging method, wherein the diameter value is more accurate when the number of the positions is larger, but the cost of more image analysis and calculation time can be faced.
In preferred embodiments, the first predetermined number may be 2, 3, 4, 5 or 6, thereby allowing for both numerical accuracy and system efficiency.
In preferred embodiments, the second predetermined number may be 2, 3, 4, 5 or 6 to allow for numerical accuracy and system efficiency.
Optionally, the first predetermined number and the second predetermined number may be the same or different.
Similarly, providing more rotation angle options and rotating the guidewire a greater number of times may also result in more accurate diameter values, but also face system efficiency considerations.
In preferred embodiments, the predetermined angle may be 30 degrees, 45 degrees, 60 degrees, or 90 degrees.
In a preferred embodiment, the step of obtaining the length of the wire may comprise:
providing a bearing structure with a preset length, arranging a limiting structure with a preset distance from the bearing structure at one end of the bearing structure, placing a wire on the bearing structure, enabling one end of the wire to abut against the limiting structure, measuring the distance of the end, back to the limiting structure, of the wire extending out of the bearing structure, and taking the sum of the preset length, the preset distance and the distance of the end, back to the limiting structure, of the wire extending out of the bearing structure as the length of the wire.
On the basis, the step of calculating the meter weight of the wire can further comprise the following steps:
the weight of the wire is divided by the length of the wire in meters to obtain the meter weight of the wire.
In a preferred embodiment, before the step of obtaining the profile of the conductive wire and the step of obtaining the length of the conductive wire are performed, a step of aligning the conductive wire may be further included. The wire is firstly straightened, so that a more accurate wire contour image can be obtained, and the length of the wire can be measured more accurately.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (20)
1. A wire measuring device, comprising:
the weighing unit is used for acquiring the weight of the lead to be measured;
a profile scanning unit for scanning the profile of the conductive line;
a length measuring unit for measuring the length of the wire;
and the calculating unit is respectively connected with the weighing unit, the contour scanning unit and the length measuring unit and is used for calculating the pitch-diameter ratio and/or the meter weight of the lead according to the weight, the contour and the length.
2. The measurement device of claim 1, further comprising a frame, the frame comprising:
the bearing structure is used for placing the lead;
the weighing unit, the profile scanning unit and the length measuring unit are arranged on the rack.
3. The measurement device of claim 2, wherein the load bearing structure comprises:
the first clamp is arranged at one end of the bearing structure and used for clamping one end of the lead;
and the second clamp is arranged at one end of the bearing structure, which is back to the first clamp, and is used for clamping the other end of the wire.
4. A measuring device according to claim 3, wherein the carrier structure further comprises a first push-pull element connected between the frame and the second clamp for urging the second clamp in a direction away from the first clamp along the length of the wire when placed on the carrier structure.
5. The measurement device of claim 4, wherein the support structure further comprises a secondary alignment member disposed between the first clamp and the second clamp for lifting the wire from beneath the wire.
6. A measuring device according to claim 5, wherein the secondary alignment feature comprises:
the supporting part is arranged below the corresponding position when the lead is placed on the bearing structure;
the first limiting structures are arranged on two sides of the corresponding position when the lead is placed on the bearing structure;
and the second push-pull element is connected with the bearing part and the first limiting structure and used for pushing the bearing part and the first limiting structure upwards from an initial position to an alignment position.
7. The measurement device of claim 2, wherein the profile scanning unit comprises;
the moving mechanism is arranged above the bearing structure, and the moving direction of the moving mechanism is the same as the length direction of the conducting wire when the conducting wire is placed on the bearing structure;
and the contour scanning component is connected to the moving mechanism.
8. The measurement device of claim 7, wherein the movement mechanism comprises one of a motorized screw guide, a motorized rack guide, a motorized sprocket guide, and a motorized pulley guide.
9. A measuring apparatus according to claim 7, wherein the profile scanning means comprises a laser scanner.
10. The measuring device of claim 4, wherein the length measuring unit comprises:
the second limiting structure is arranged at one end, corresponding to the first clamp, of the bearing structure and used for limiting the relative position of one end, corresponding to the second limiting structure, of the lead and the bearing structure;
and the length measuring component is arranged at one end of the bearing structure, which is back to the second limiting structure, and is used for measuring the relative position of one end of the lead, which is back to the second limiting structure, and the bearing structure when the lead is placed on the bearing structure.
11. The measurement device of claim 10, wherein the length measurement component comprises:
the image acquisition element is arranged above the bearing structure and is connected with the first push-pull element;
the scale element is arranged at one end of the bearing structure, which is back to the second limiting structure, and is positioned in the acquisition view field of the image acquisition element;
and the light source element is arranged at one end of the bearing structure, which is back to the second limiting structure.
12. The measurement device of claim 10, wherein the computing unit is disposed in a management system.
13. A method of measuring a wire, comprising:
providing a weighing unit to obtain the weight of a lead to be measured;
providing a profile scanning unit to obtain the profile of the conducting wire;
providing a length measuring unit to obtain the length of the lead;
and providing a calculating unit to calculate the pitch-diameter ratio and/or the meter weight of the lead according to the weight, the contour and the length.
14. The measurement method of claim 13, wherein the step of obtaining the profile of the wire comprises:
scanning the outline of the lead and intercepting a first outline image of the lead;
rotating the wire by a preset angle along the circumferential direction of the end face of the wire;
and scanning the outline of the lead and intercepting a second outline image of the lead.
15. The measurement method of claim 14, wherein the step of calculating the pitch-to-diameter ratio of the wire comprises:
acquiring the pitch of the conducting wire according to the first contour image;
acquiring diameter values of the guide line at each first position at a first preset number of first positions on the first contour image;
acquiring the diameter value of the guide line at each second position at a second preset number of second positions on the second contour image;
adding the sum of the diameter values of the first location and the second location and dividing the sum by the sum of the first predetermined number and the second predetermined number to obtain the diameter of the guidewire;
and obtaining the pitch-diameter ratio of the wire according to the pitch and the diameter.
16. The measurement method of claim 15, wherein the first predetermined number is 2, 3, 4, 5, or 6; and/or
The second predetermined number is 2, 3, 4, 5 or 6.
17. The measurement method of claim 14, wherein the predetermined angle is 30 degrees, 45 degrees, 60 degrees, or 90 degrees.
18. The measurement method of claim 13, wherein the step of obtaining the length of the wire comprises:
providing a bearing structure with a preset length, arranging a limiting structure with a preset distance from the bearing structure at one end of the bearing structure, placing the lead on the bearing structure, enabling one end of the lead to abut against the limiting structure, measuring the distance of the end, back to the limiting structure, of the lead extending out of the bearing structure, and taking the sum of the preset length, the preset distance and the distance of the end, back to the limiting structure, of the lead extending out of the bearing structure as the length of the lead.
19. The measurement method of claim 18, wherein the step of calculating the meter weight of the wire comprises:
dividing the weight of the wire by the length of the wire in meters to obtain the meter weight of the wire.
20. The method of measurement according to claim 13, further comprising the step of aligning the wire before the steps of obtaining the profile of the wire and obtaining the length of the wire are performed.
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