CN218601353U - Measuring value structure - Google Patents

Abstract

The utility model discloses a survey value structure, include the support frame, survey value needle carrier, displacement sensor and survey the value needle, it is vice to be provided with vertical guide rail on the support frame, it is in to survey the movably setting of value needle carrier on the guide rail, displacement sensor installs survey on the value needle carrier, it installs to survey the value needle survey on the value needle carrier for measure the value to electronic components. The embodiment of the utility model provides an in survey the value structure based on "mobilizable design" and "displacement sensor"'s joint design, provide one section successor absolute safe stroke for the support frame, this section stroke can not increase the pressure of surveying between value needle and the electronic components, nevertheless can ensure that electronic components and survey and can fully contact between the value needle, has realized avoiding electronic components impaired or the impaired purpose of survey value needle under the prerequisite of guaranteeing measurement accuracy from this.

Description

Measuring value structure

Technical Field

The utility model relates to a surface mounting technology field especially relates to a survey value structure.

Background

Surface Mount Technology (SMT) is a Circuit connecting Technology that mounts electronic components without leads or short leads on the Surface of a Printed Circuit Board (PCB) or other substrate, and solder-assembles the electronic components by solder reflow or solder dip.

The surface mount technology is developed today, electronic components are increasingly miniaturized, and the quality requirements of the electronic components are also increasingly high, so that the electronic components need to be detected in order to ensure the quality of final products. Traditional detection mode generally needs to rely on artifical manual operation, and this kind of detection mode is influenced by the people greatly, complex operation, and detection efficiency is low, and is higher to measurement personnel's technical requirement simultaneously, can't guarantee the accuracy nature that detects.

For this reason, apparatuses have been developed which can automatically perform a measurement, and such apparatuses generally drive a measurement probe to move so that the measurement probe can automatically perform a measurement on an electronic component. The measuring structure is an important component of such measuring equipment, the measuring needle is mounted on the measuring structure, and the electronic components can be measured by driving the measuring structure to move and approach to the electric components. However, the measuring pins are generally fixedly mounted on the measuring structure, and the measuring pins are rigidly connected to each other, so that the thickness of the electronic component cannot be completely uniform, and particularly, when electronic components from different manufacturers or electronic components from different batches are inspected, the thickness is changed greatly, so that a problem of low measurement accuracy due to the fact that the measuring pins are not completely abutted against the electronic components during the measurement process, or a problem of damage to the electronic components or damage to the measuring pins due to excessive pressure between the measuring pins and the electronic components although the measuring pins are abutted against the electronic components often occurs.

SUMMERY OF THE UTILITY MODEL

The utility model provides a survey value structure for realize avoiding electronic components impaired or survey the impaired purpose of value needle under the prerequisite of guaranteeing measurement accuracy.

According to the utility model discloses, should survey the value structure and include:

a support frame;

a measuring stylus carrier movably disposed on the support frame;

a displacement sensor mounted on the measuring needle carrier;

and the measuring probe is arranged on the measuring probe carrier and is used for measuring the electronic component.

In one embodiment, the supporting frame is provided with a vertical guide rail pair, the vertical guide rail pair comprises a first guide rail and a second guide rail which can be clamped with each other, the first guide rail is fixedly arranged on the supporting frame, the second guide rail can move along the axial direction of the first guide rail, and the measuring needle carrier is fixedly connected to the second guide rail.

In one embodiment, the supporting frame is formed with a limiting support part, the index needle carrier is formed with a stopper part, and the stopper part abuts against the limiting support part when the second guide rail moves to a lower limit position along the first guide rail.

In one embodiment, the measuring needle carrier is configured as a half-enclosed structure, in which an accommodating chamber capable of accommodating the first guide rail and the second guide rail is formed, the blocking portion is formed on the side wall of the measuring needle carrier in a protruding manner, and the limit support portion is formed on the bottom of the supporting frame.

In one embodiment, the first guide rail is formed with a limit support part, the second guide rail is formed with a stop part, and when the second guide rail moves to a limit position located below along the first guide rail, the stop part abuts against the limit support part.

In one embodiment, the stylus holder includes a connecting block fixedly connected to the second rail and a stylus mounting block on which the stylus is mounted.

In one embodiment, the number of the supporting frames is two, and the two supporting frames can move close to or away from each other.

In one embodiment, the device further comprises a driving structure, the driving structure comprises a base plate and a displacement driving assembly mounted on the base plate, the two support frames are movably mounted on the base plate and connected to the displacement driving assembly, and the displacement driving assembly is used for driving the two support frames to move close to or away from each other.

In one embodiment, the displacement driving assembly comprises a driving motor, a synchronous belt assembly and a lead screw, the synchronous belt assembly is connected to an output shaft of the driving motor, the lead screw is provided with a forward threaded section and a reverse threaded section, and the two supporting frames are respectively installed on the forward threaded section and the reverse threaded section.

In one embodiment, the driving structure further comprises a rotating assembly, and the base plate is mounted on the rotating assembly, so that the base plate, the displacement driving assembly and the support frame rotate together under the driving of the rotating assembly.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

according to the measuring structure in the above embodiment, when the measuring structure drives the measuring needle to reach the electronic component, the measuring needle carrier will carry the displacement sensor and the measuring needle to be kept still, and the supporting frame will continue to move down by a distance along with the further movement of the measuring structure, based on the movable arrangement of the measuring needle carrier and the supporting frame, during the period from the contact of the measuring needle to the continuous movement of the supporting frame, the displacement sensor will mark the change of the stroke, and within the set stroke, the large pressure will not be generated between the measuring needle and the electronic component, and the pressure is relatively constant, thereby ensuring that the two will not be damaged, and simultaneously, by reasonably designing the stroke distance, and marking and recording by the displacement sensor, the stroke can include the thicknesses of various electronic components (after the stroke is completed, all the electronic components will be contacted with the measuring needle), the period from the contact of the measuring needle to the continuous movement of the supporting frame will become an absolute safe stroke, which will not damage the electronic components and the measuring needle, and can ensure that the two are contacted reliably, thereby ensuring the measuring accuracy.

The embodiment of the utility model provides an in survey the value structure based on "mobilizable design" and "displacement sensor"'s joint design, provide one section successor absolute safe stroke for the support frame, this section stroke can not increase the pressure of surveying between value needle and the electronic components, nevertheless can ensure that electronic components and survey and can fully contact between the value needle, has realized avoiding electronic components impaired or the impaired purpose of survey value needle under the prerequisite of guaranteeing measurement accuracy from this.

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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

FIG. 1 is a schematic diagram showing the structure of a measured value structure in one embodiment;

FIG. 2 shows a schematic structural diagram of a measured value structure in another embodiment;

FIG. 3 shows a partially exploded schematic view of the measured value structure of FIG. 3;

FIG. 4 shows a partially exploded view of another angle of the metrology structure of FIG. 3;

FIG. 5 shows a schematic structural view of a drive structure and a support frame in one embodiment;

FIG. 6 is a schematic view of an alternative angle of the drive structure and support frame in one embodiment;

fig. 7 shows a schematic view of a further angle of the drive structure and the support frame in an embodiment.

Description of the main element symbols:

100-a support frame; 110-a vertical guide rail pair; 111-a first guide rail; 112-a second guide rail; 120-a limit support; 130-a moving part; 140-a connecting portion;

200-measuring the stylus carrier; 210-a stop; 220-a containment chamber; 230-connecting block; 240-measuring needle mount;

300-a displacement sensor;

400-measuring needle;

500-a drive configuration; 510-a substrate; 520-a displacement drive assembly; 530-moving the guide rail; 540-a rotating assembly; 521-a drive motor; 522-a timing belt assembly; 523-lead screw; 524-motor cabinet; 531-straight rail; 532-a slide block; 541-a rotating motor; 542-a turntable;

a-a clamping part.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The embodiment of the utility model provides a survey value structure, its component as automatic measure value equipment, it can be close to electronic components under the drive of other structures in the automatic measure value equipment to the realization is to electronic components's measurement.

In the measuring value structure provided by the present invention, it itself also includes some transmission mechanisms or displacement mechanisms, these transmission mechanisms, displacement mechanisms or the purpose of moving the measuring value needle within the setting range is realized, or the purpose of making the measuring value needle avoid damaging the measuring value needle or electronic components on the premise of ensuring the measuring accuracy is realized, or the purpose of realizing the above two aspects is realized simultaneously, it can be understood that, when the purpose of realizing the above two aspects is realized, these transmission mechanisms, displacement mechanisms are integrated and designed on one set of measuring value structure.

In order to facilitate a proper understanding and capture of the core content of the present application, a design related to the purpose of the above-described second aspect will be first described below.

In the embodiment of the present invention, please refer to fig. 1 to fig. 4, the measuring structure includes a supporting frame 100, a measuring probe carrier 200, a displacement sensor 300 and a measuring probe 400.

The support 100 serves as a support structure for the measuring structure, and on the one hand provides mounting locations for the measuring needle carrier 200, the displacement sensor 300 and the measuring needle 400, and on the other hand can be connected to the automatic measuring device.

The measuring pointer carrier 200 is movably arranged on the supporting frame 100. The displacement sensor 300 is mounted on the measuring needle carrier 200 and is capable of recognizing and recording the relative displacement between the measuring needle carrier 200 and the carriage 100.

The measuring pin 400 is mounted on the measuring pin carrier 200 for measuring the electronic components. It can be understood that the measuring needle carrier 200, the displacement sensor 300 and the measuring needle 400 are an integral structure, and when the measuring needle carrier 200 and the supporting frame 100 are relatively displaced, the relative displacement distances between the three and the supporting frame 100 are consistent.

In the embodiment of the present invention, when the measuring needle 400 is driven to reach the electronic component, the measuring needle is moved down further along with the measuring structure, based on the movable setting of the measuring needle carrier 200 and the supporting frame 100, so that the measuring needle carrier 200 can carry the displacement sensor 300 and the measuring needle 400 to remain stationary, and the supporting frame 100 can move down a distance continuously, in the section of the stroke from the contacting of the measuring needle 400 to the electronic component to the supporting frame 100 to move down continuously, the displacement sensor 300 can mark the change of the stroke, in the set stroke, a large pressure cannot be generated between the measuring needle 400 and the electrical component inevitably, and the pressure is relatively constant, thereby ensuring that both cannot be damaged, and simultaneously, by reasonably designing the stroke distance, and marking and recording by the displacement sensor 300, when the section of the stroke can include the thickness of various electronic components (after the section of the stroke is moved, all the electronic components can contact the measuring needle 400), the section of the stroke from the contacting of the measuring needle 400 to the electronic component to the supporting frame 100 can move down continuously, not only the measuring needle 400 and the measuring needle 400 can not be damaged, and the measuring precision can be ensured.

The embodiment of the utility model provides an in survey the value structure based on "mobilizable design" and "displacement sensor 300" joint design, provide one section successor absolute safe stroke for support frame 100, this section stroke can not increase the pressure of surveying between needle 400 and the electronic components, nevertheless can ensure that electronic components and survey and can fully contact between the needle 400, has realized avoiding electronic components impaired or the impaired purpose of survey needle 400 under the prerequisite of guaranteeing measurement accuracy from this.

In order to realize the movement of the measuring needle carrier 200 on the supporting frame 100, a guide rail is generally required to be arranged on the supporting frame 100, the arrangement direction of the guide rail is not particularly limited, but as a preferable scheme, the guide rail should be arranged vertically, the arrangement is simple, and the structure and the composition can be simplified.

It is to be understood here that the vertical direction is the direction of gravity, i.e. the structure provided on the guide rail can move up and down in the vertical direction.

It is to be understood that the specific shape of the guide rail is not limited, and may be a form similar to a rail, etc., or may be another structural form, in which a catching portion a is formed on the inner side of the guide rail (in the example shown in fig. 3 and 4, the catching portion a is formed on the inner side of the guide rail), or a catching portion a may be formed on the outer side of the guide rail, regardless of the structural form, as long as the structure provided on the measured value needle carrier 200 can be adapted thereto (these structures may be provided on the measured value needle carrier 200 in a manner of being matched with themselves, or may be provided on, for example, the measured value needle carrier 200 hereinafter, in which case the measured value needle carrier 200 itself does not have a structure adapted to the guide rail, but may be designed to be connected to a moving portion of the guide rail, for example, fixedly connected to the second guide rail 112 hereinafter), and the guide rail may be additionally designed to the support frame 100, or may be formed by the support frame 100 itself.

The measuring pin carrier 200 is movably arranged on the guide rail as a structure adapted to the guide rail or as a structure mounted on the guide rail, and as will be understood from the above or below, the movement is passive, i.e. the measuring pin carrier 200 is moved relative to the supporting frame 100 when the measuring pin 400 contacts the electronic component and is subjected to a reaction force of the electronic component.

In an embodiment, referring to fig. 2 to 4, the guide rail adopts a structure form of a vertical guide rail pair 110, that is, the guide rail pair includes a first guide rail 111 and a second guide rail 112 capable of engaging with each other, the first guide rail 111 is fixedly disposed on the supporting frame 100, the second guide rail 112 is movable along an axial direction of the first guide rail 111, and the measuring needle carrier 200 is fixedly connected to the second guide rail 112.

The first guide rail 111 may be an external connection member, which is connected to the support frame 100 by a subsequent connection means, or the first guide rail 111 may be a part of the support frame 100 and directly formed by the support frame 100.

It will be understood here that the vertical guide rail pair 110 itself can output a linear movement in the vertical direction, the measuring needle carrier 200 being mounted on the moving part of the vertical guide rail pair 110.

In connection with the foregoing, although the vertical guide rail pair 110 is designed here as a two-part component of the first guide rail 111 and the second guide rail 112, it is understood that the vertical guide rail pair 110 may also comprise only the first guide rail 111, and that the associated structure of the second guide rail 112 may be attached to the needle carrier 200, in which case the needle carrier 200 is designed to be structurally adapted to the first guide rail 111.

It should also be noted that in the exemplary embodiments listed below, the second guide rail 112 or the structures formed on the second guide rail 112 can be integrated directly on the index needle carrier 200. For the sake of simplicity, the following description will mainly use the case where the first rail 111 and the second rail 112 form the vertical rail pair 110, and the measuring needle carrier 200 is directly mounted on the second rail 112.

In a specific embodiment, referring to fig. 2 to 4, the supporting frame 100 is formed with a limiting support portion 120, the measuring needle carrier 200 is formed with a stopping portion 210, and when the second guide rail 112 moves to a limiting position located below along the first guide rail 111, the stopping portion 210 abuts against the limiting support portion 120.

In the process that the automatic measuring device drives the measuring structure to approach the electrical component, at this time, for the structural system formed by the measuring structure itself, the measuring needle carrier 200, the measuring needle 400 carried by the measuring needle carrier, and the displacement sensor 300 are located at the bottommost position relative to the supporting frame 100, that is, the limit supporting portion 120 abuts against the stopping portion 210, and in a section of the travel from the time the measuring needle 400 contacts the electrical component to the time the supporting frame 100 continues to move, the limit supporting portion 120 and the stopping portion 210 are gradually separated, thereby providing an absolute safety travel for the continuous movement of the supporting frame 100.

In terms of design rationality, the measuring needle carrier 200 carries the measuring needle 400 and the displacement sensor 300, and the overall structure formed by them has a certain weight, and according to the design manner of the vertical guide rail pair 110, the weight will drive the measuring needle carrier 200 to fall down, and at this time, the limit support portion 120 and the stopper portion 210 are provided to form a blocking force for the measuring needle carrier 200, so as to position the measuring needle carrier 200.

In a more specific embodiment, referring to fig. 3 to 4, the measuring needle carrier 200 is configured as a half-enclosed structure, and the accommodating cavity 220 capable of accommodating the first guide rail 111 and the second guide rail 112 is formed inside the half-enclosed structure, the stopper portion 210 is formed on the sidewall of the measuring needle carrier 200 in a protruding manner, and the limit support 120 is formed at the bottom of the supporting frame 100.

In this embodiment, irregularities caused by the structure of the first rail 111 and the second rail 112 can be eliminated by the half-enclosed structure of the needle carrier 200, in other words, the first rail 111 and the second rail 112 are generally provided as protrusions on the carriage 100 or formed as protrusions on the needle carrier 200, and the receiving cavity 220 of the needle carrier 200 can receive these protruding structures well, so that the needle carrier 200, the vertical rail pair 110 and the carriage 100 are more uniform and smooth in structure, and the vertical rail pair 110 can be hidden well, which is of great significance for improving the working performance and service life of the vertical rail pair 110 and reducing the subsequent cleaning and maintenance work.

In another specific embodiment, the first rail 111 is formed with a limit support portion, the second rail 112 is formed with a stop portion, and the stop portion abuts against the limit support portion when the second rail 112 moves to a limit position located below along the first rail 111.

Different from the previous embodiment, the combination manner is simple in structural formation, the stopping portion and the limiting support portion in this embodiment are directly formed on the first guide rail 111 and the second guide rail 112, for example, the first guide rail 111 may be a hollow structure, but the bottom of the first guide rail 111 is closed, i.e., the limiting support portion is formed, the second guide rail 112 still adopts a structure capable of moving in the first guide rail 111, the bottom of the second guide rail 112 forms the stopping portion, and when the bottom of the second guide rail 112 moves to abut against the bottom of the first guide rail 111, i.e., the stopping portion and the limiting support portion are matched with each other.

It should be noted that the above-mentioned design and description of the guide rail are merely exemplary, and it should be understood that in the above-mentioned embodiment, the guide rail is formed on the supporting rack 100 or the measuring needle carrier 200 in a raised manner, but it is understood that in other embodiments, the guide rail itself may be of a hidden design, for example, a strip-shaped groove may be formed on the supporting rack 100, and a protruding strip capable of being snapped into the strip-shaped groove may be formed on the measuring needle carrier 200. It will be understood that the first rail 111 can be understood as a strip-shaped groove, while the second rail 112 can be understood as a rib.

The utility model discloses do not restrict the specific molding of surveying value needle carrier 200, its reason lies in, survey value needle carrier 200 only provides the installation condition for surveying value needle 400 and displacement sensor 300, in addition only need guarantee that it can satisfy necessary structural strength requirement and the matching requirement of other structures can. However, in some automatic measuring devices, there is a need to be able to easily replace the measuring needle 400, and the measuring needle carrier 200 can be designed as follows.

In one embodiment, referring to fig. 2-4, the stylus carrier 200 includes a connecting block 230 and a stylus mounting base 240, the connecting block 230 is fixedly connected to the second guide rail 112 (it should be understood that the connecting block 230 corresponds to the single-structure stylus carrier 200 in the previous embodiment, and the corresponding design of the stylus carrier 200 can be applied on the connecting block 230), and the stylus 400 is mounted on the stylus mounting base 240.

The measuring pin carrier 200 here is composed of two parts, namely a connecting block 230 and a measuring pin mounting block 240, the aforementioned mounting of the measuring pin carrier 200 and the guide rail being mainly realized, and the latter of the measuring pin carrier 200 and the guide rail being mainly realized, the measuring pin 400 being able to be easily replaced by detachably connecting the measuring pin 400, the measuring pin mounting block 240 and the connecting block 230.

So far, a more complete description is made about the core content of the measured value structure, and other details and easily replaced contents are not repeated. Hereinafter, a description will be given focusing on the design associated with the object of the above-described first aspect.

It should be understood that in most cases, at least two measuring pins 400 are required to be matched to achieve complete measurement of an electronic component, and therefore, the following embodiments will be described by taking a measuring structure including two measuring pins 400 as an example. It should be noted that in the embodiments shown below, the principle of action of the transmission mechanism is disclosed by one or a few mechanisms, but the transmission mechanism is not limited to the list below.

Thus, in some embodiments, referring to fig. 1 to 4, two supporting frames 100 are provided, each supporting frame 100 is provided with a measuring pin carrier 200, a guide rail, a displacement sensor 300, and the like, and the two supporting frames 100 are configured to be capable of moving closer to or away from each other to adapt to the measurement of electronic components with different sizes.

In some embodiments, please refer to fig. 5 to fig. 7, the measuring structure further includes a driving structure 500, the supporting frame 100 is mounted at the output end of the driving structure 500, and the driving structure 500 drives the supporting frames 100 to move toward each other.

The driving structure 500 comprises a base plate 510 and a displacement driving assembly 520 mounted on the base plate 510, wherein two support frames 100 are movably mounted on the base plate 510 and connected to the displacement driving assembly 520, and the displacement driving assembly 520 is used for driving the two support frames 100 to move towards or away from each other.

It should be added here that, in order to realize the moving arrangement of the supporting frame 100 on the base plate 510, a moving guide 530 needs to be arranged on the base plate 510, and the supporting frame 100 is movably arranged on the moving guide 530.

The base plate 510 serves as a support member for the support 100, the measurement probe carrier 200, the guide rail, the displacement sensor 300, and the like, and is generally made of a metal material to ensure its structural strength. Meanwhile, the substrate 510 may have a more regular structure, for example, in the examples shown in fig. 5 to 7, the substrate 510 has a substantially square structure.

For the convenience of understanding, the supporting frame 100 and the moving guide rail 530 are not understood in the design manner between the measuring needle carrier 200 and the vertical guide rail pair 110 in the foregoing description, in this case, referring to fig. 7, the moving guide rail 530 includes a straight rail 531 fixedly installed on the base plate 510 and a slider 532 installed on the supporting frame 100, the slider 532 and the straight rail 531 are designed to be nested with each other, so that the slider 532 can move along the straight rail 531, and when the slider 532 moves, the supporting frame 100 can move. Of course, the slider 532 may be integrated with the supporting frame 100 in the aforementioned design. In addition, instead of using the combination of the straight rail 531 and the slider 532, the moving rail 530 may use a combination of a strip-shaped groove and a convex strip.

In order to improve the reliability and stability of the movement of the supporting frame 100 on the base plate 510, a plurality of sets of moving guide rails 530 may be designed on the base plate 510, for example, in the examples shown in fig. 5 to 7, a set of moving guide rails 530 is respectively disposed on the front and rear sides of the base plate 510, and the supporting frame 100 has a moving part 130 spanning the two sets of moving guide rails 530. The first guide rail 111 is installed or formed below the moving part 130, for convenience of description, a portion corresponding to the first guide rail 111 is referred to as a connecting part 140, and the supporting stand 100 further includes the limiting support part 120, and referring to fig. 7, the combination of the moving part 130, the connecting part 140 and the limiting support part 120 makes the supporting stand 100 have a structure form that is substantially wide at the top and narrow at the bottom.

In order to make the most of the space of the base plate 510, the displacement driving assembly 520 is installed at the rear side of the base plate 510 and extends to the front side of the base plate 510, i.e. the displacement driving assembly 520 only occupies the peripheral space of the base plate 510, so that the supporting frame 100 is covered by the base plate 510 as much as possible, and the structure design can make the supporting frame 100 not be interfered in the moving range.

Specifically, the displacement driving assembly 520 includes a driving motor 521, a timing belt assembly 522 and a lead screw 523, the timing belt assembly 522 is connected to an output shaft of the driving motor 521, the lead screw 523 has a forward threaded section and a reverse threaded section, and the two support frames 100 are respectively mounted on the forward threaded section and the reverse threaded section.

Driving motor 521 connects on base plate 510 through installing motor cabinet 524 in base plate 510 one side, driving motor 521's output shaft stretches out base plate 510 from this side, hold-in range subassembly 522 includes the action wheel, follow the driving wheel and connect the hold-in range on the action wheel and follow the driving wheel, wherein, the action wheel is connected in the output shaft, under the drive of output shaft, this action wheel can rotate, thereby it rotates to drive from the driving wheel, should connect in aforementioned lead screw 523 from the driving wheel, then realize the drive to lead screw 523, lead screw 523 rotates the back, two support frames 100 that set up on lead screw 523 then can be along lead screw 523 relative motion or motion dorsad.

It is understood that, in order to precisely control the distance between the two supports 100 and thus the distance between the two measuring pins 400, a displacement sensor is generally disposed on the moving path of the supports 100, and the displacement sensor may be specifically designed on the supports 100, and of course, may be disposed on the base 510.

In addition, in order to move the installation space of the supporting frame 100, referring to fig. 7, the driving motor 521 is spaced apart from the base plate 510 by a distance, and the moving rail 530 disposed at the rear side of the base plate 510 may be disposed in the distance.

The displacement drive assembly 520 may be a gear train, or the like, in addition to the timing belt assembly 522 described above.

In some embodiments, referring to fig. 5 to 7, the driving structure 500 includes a rotating assembly 540, and the substrate 510 is mounted on the rotating assembly 540, such that the substrate 510, the displacement driving assembly 520, and the supporting frame 100 rotate together under the driving of the rotating assembly 540.

The rotation assembly 540 is arranged to enable the measuring pin 400 to rotate within a certain range, so as to provide greater convenience for the measuring operation of the electronic components.

The rotating assembly 540 includes a rotating motor 541 and a rotating disc 542, the rotating disc 542 is rotatably connected to an output shaft of the rotating motor 541, the rotating disc 542 is driven by the rotating motor 541 to rotate, and the substrate 510 is directly and fixedly connected to the rotating disc 542, so as to rotate the substrate 510.

It is understood herein that the connection between the rotary motor 541 and the turntable 542 can be achieved in various ways, for example, in some cases, the rotary motor 541 can drive the turntable 542 to rotate by means of a gear set, but also can be in a belt driving manner, or in a chain and sprocket manner.

It should be noted that the drive structure 500 may only be configured to include the rotating assembly 540, and the support structure 100 described above with respect to the support structure 100 may be coupled to the turntable 542 directly or via an intermediate structure.

For a clearer understanding of the measurement structure in the present application, the following description will be made in conjunction with a preferred embodiment of the measurement structure, and the operation of the measurement structure will be described in conjunction with the structure composition, the structure of which is described above.

Referring to fig. 1 and 3, in the preferred embodiment, the measuring structure has, in addition to the basic measuring function, the function of driving the measuring pins 400 to rotate, move toward or away from each other, and have an absolute safety stroke. Specifically, the measuring structure includes two supporting frames 100, each supporting frame 100 is provided with a vertical guide rail pair 110, the measuring needle carrier 200, the displacement sensor 300 and the measuring needle 400 are mounted on the vertical guide rail pair 110, the two supporting frames 100 are mounted on the output end of the driving structure 500, the driving structure 500 includes a displacement driving assembly 520 and a rotating assembly 540, wherein the displacement driving assembly 520 is mounted on the rotating assembly 540, that is, the rotating assembly 540 can drive the displacement driving assembly 520, the supporting frames 100, the measuring needle carrier 200, the displacement sensor 300 and the measuring needle 400 to rotate together, the displacement driving assembly 520 can drive the supporting frames 100, the measuring needle carrier 200, the displacement sensor 300 and the measuring needle 400 to move together, and in addition, the supporting frames 100 and the measuring needle carrier 200 are respectively provided with a limiting support 120 and a stop 210. The working process is approximately as follows: after the electronic component is placed at the measuring position of the automatic measuring device, the automatic measuring device drives the measuring structure to approach the electronic component, at this time, the measuring pin carrier 200 is at the lowest position relative to the supporting frame 100, when the electronic component is about to approach, the rotating assembly 540 and the displacement driving assembly 520 are controlled to work, so that the measuring pin 400 aligns to two measuring pin positions on the electronic component, then the automatic measuring device drives the measuring structure to approach the electronic component again until the measuring structure abuts against the electronic component, and the rear displacement sensor 300 starts to feed back and record the next subsequent stroke, in the subsequent stroke, based on the design of the vertical guide rail pair 110, the supporting frame 100 will continue to move, so as to ensure that the electronic component and the measuring pin 400 are in full contact, and finally, data is acquired through the measuring pin 400.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A measured value structure, comprising:

a support frame;

a measuring stylus carrier movably disposed on the support frame;

a displacement sensor mounted on the measuring needle carrier;

and the measuring probe is arranged on the measuring probe carrier and is used for measuring the electronic component.

2. The measuring structure according to claim 1, characterized in that the support frame is provided with a vertical guide rail pair, which comprises a first guide rail and a second guide rail that can be engaged with each other, the first guide rail being fixedly arranged on the support frame, the second guide rail being movable in the axial direction of the first guide rail, and the measuring needle carrier being fixedly connected to the second guide rail.

3. The measuring structure according to claim 2, characterized in that the support frame is formed with a limit stop, and the measuring needle carrier is formed with a stop, which abuts against the limit stop when the second guide is moved along the first guide to a lower limit position.

4. A measuring construction according to claim 3 wherein the measuring needle carrier is constructed as a semi-enclosed structure having formed therein a receiving cavity capable of receiving the first and second guide rails, the stop being formed as a protrusion from the side wall of the measuring needle carrier and the limit support being formed at the bottom of the supporting shelf.

5. The reading stand according to claim 2, wherein the first rail is formed with a limit support, and the second rail is formed with a stopper, and the stopper abuts against the limit support when the second rail moves to a lower limit position along the first rail.

6. The stylus holder of claim 2, wherein the stylus carrier comprises a connecting block and a stylus mounting block, the connecting block being fixedly connected to the second rail, the stylus being mounted on the stylus mounting block.

7. The metrology structure of any one of claims 1 to 6 wherein said supports comprise two, two of said supports being capable of moving towards and away from each other.

8. The metrology structure of claim 7 further comprising a drive structure comprising a base plate and a displacement drive assembly mounted on the base plate, two of the support stands being movably mounted on the base plate and connected to the displacement drive assembly, the displacement drive assembly being adapted to drive the two support stands toward and away from each other.

9. The metering structure of claim 8 wherein the displacement drive assembly comprises a drive motor, a timing belt assembly and a lead screw, the timing belt assembly being connected to an output shaft of the drive motor, the lead screw having a forward threaded section and a reverse threaded section, two of the support brackets being mounted on the forward threaded section and the reverse threaded section, respectively.

10. The metrology structure of claim 8 wherein said drive structure further comprises a rotation assembly, said base plate being mounted on said rotation assembly such that said base plate, said displacement drive assembly and said support frame rotate together under the drive of said rotation assembly.

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