Background
With the technical development of terminal products such as electronic products and electric vehicles, the performance requirements of lithium batteries are higher and higher. Due to the production process, the size, the internal resistance and the voltage of each type of lithium battery are different, whether each index of each type of lithium battery meets the process standard or not, whether the whole power lithium battery is qualified or not can be known only by detecting the lithium battery, and the lithium batteries are grouped according to the detection result, so that each power lithium battery needs to be detected during production.
At present, a plurality of measuring devices for the thickness of the lithium battery exist, but the thickness of only one position can be tested each time, the position of the lithium battery needs to be adjusted, the measurement is repeated, and the thickness of the battery with the same size can be measured.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application will be solved provides a measuring device, can test the thickness that the test point was treated to the difference on the lithium cell, can be compatible not measurement of unidimensional lithium cell thickness moreover, guarantees the accuracy of testing result simultaneously, and easy operation.
In order to solve the above technical problem, the present application provides a measuring device, including: the measuring rods are used for clamping a point to be tested on a target object and measuring the thickness of the point to be tested; and the adjusting mechanism is connected with the measuring rod and used for adjusting the point to be tested clamped by the measuring rod.
In an embodiment of the application, the axes of the two measuring bars in each pair coincide, and each measuring bar comprises: the scale rod is used for clamping a point to be tested on a target object; the scale sleeve is sleeved on the scale rod; the scale rod is in threaded connection with the scale sleeve, and the scale rod can rotate relative to the scale sleeve and move along the axis direction of the scale rod.
In the embodiment of the application, the scales on the scale rod are arranged on the lower edge of the scale rod, and the scales on the scale sleeve are arranged on the left edge of the scale sleeve.
In the embodiment of this application, the measuring staff still includes the rotation axis, the one end of rotation axis stretches into in the scale bar, and with the scale bar passes through threaded connection, the knob is connected to the other end of rotation axis, and is rotatory the knob can drive the scale bar is rotatory.
In the embodiment of this application, still the cover is equipped with ratchet on the scale rod, just ratchet is located in the scale sleeve, be used for judging the scale rod with treat the contact degree of test point.
In an embodiment of the application, the length of the scale sleeve is fixed.
In an embodiment of the application, the adjustment device comprises: the standard rod is arranged in parallel with the measuring rod; the pair of fixed rods are respectively arranged at two ends of the standard rod and connected with the scale sleeve; the moving rod penetrates through the standard rod and is vertical to the workbench; the standard rod can move along the axis direction of the movable rod, and the movable rod can drive the standard rod to move along the axis direction perpendicular to the standard rod so as to adjust the point to be tested clamped by the measuring rod.
In the embodiment of this application, the lower extreme of carriage release lever is connected with the slider, along the perpendicular to on the workstation the axis direction of standard pole has seted up the spout, the slider can move in the spout.
In an embodiment of the application, the length of the standard rod is fixed.
In an embodiment of the present application, the measuring apparatus further includes a positioning mechanism, the positioning mechanism includes: the positioning plate is positioned above the target object so as to fix the target object; and the lifting rod is connected with the positioning plate so as to adjust the position of the positioning plate.
Compared with the prior art, the technical scheme of the application has at least the following beneficial effects:
according to the measuring device, the lithium batteries can be fixed by adjusting the positioning plate, so that the compatibility of the lithium batteries with different sizes is realized; the thickness of any position of the lithium battery can be measured by adjusting the position of the sliding block in the sliding groove and the position of the standard rod on the movable rod; the scale rod rotates a circle in the scale sleeve, the scale rod advances or retreats a pitch distance along the axis direction of the scale rod, the degree of contact between the scale rod and a point to be tested is judged according to the sound emitted by the ratchet mechanism, the accuracy of the result of measuring the thickness of the lithium battery is improved, and the error is reduced.
Detailed Description
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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
Referring to fig. 1, a measuring device according to an embodiment of the present disclosure is used for measuring the thickness of a target object, such as a lithium battery, and the measuring device may be placed on any worktable 1 capable of providing a supporting surface during operation.
The measuring device comprises a measuring rod 2 and an adjusting mechanism, wherein the measuring rod 2 is used for clamping a point to be tested on a target object P and measuring the thickness of the point to be tested. The adjusting mechanism is connected with the measuring rod 2 and used for adjusting the point to be tested clamped by the measuring rod 2 so as to measure the thickness of different positions on the target object P.
Fig. 1 shows an embodiment comprising one pair of oppositely arranged measuring bars 2, but in other embodiments, two, three, four or more pairs of oppositely arranged measuring bars 2 may be comprised, for example fig. 2 exemplarily illustrates an embodiment having two pairs of oppositely arranged measuring bars 2. The more the measuring rods 2 are, the more the points to be tested are measured at each time, and the higher the measuring efficiency is. The following description will be given by taking as an example a case including a pair of measurement bars 2 arranged oppositely.
The axes of the two measuring rods 2 in each pair of oppositely arranged measuring rods 2 are overlapped, namely, the two measuring rods 2 in each pair are positioned on the same straight line, so that the measuring rods 2 are clamped at the corresponding positions of the two side walls of the target object P, and the measuring error is reduced.
With reference to fig. 1 and 3, each of the measuring rods 2 comprises a scale rod 21 and a scale sleeve 22. For example, the measuring stick on the left in fig. 3 includes a scale rod 21a and a scale sleeve 22a, and the measuring stick on the right includes a scale rod 21b and a scale sleeve 22 b. The scale rod 21a comprises a clamping end, the clamping end abuts against a point to be tested on one side of the target object P, the scale rod 21b also comprises a clamping end, the clamping end of the scale rod 21b abuts against the point to be tested on the other side of the target object P, the two clamping ends jointly play a role in clamping the point to be tested on the target object P, and the linear distance between connecting lines between the points to be tested, which are abutted by the two clamping ends, is the thickness of the target object P.
The scale sleeve 22a is sleeved on the scale rod 21a, and the scale sleeve 22b is sleeved on the scale rod 21 b. The scale rod 21a is screwed with the scale sleeve 22a, the scale rod 21b is screwed with the scale sleeve 22b, the scale rod 21a is rotatable relative to the scale sleeve 22a and movable in the axial direction of the scale rod 21a, and the scale rod 21b is rotatable relative to the scale sleeve 22b and movable in the axial direction of the scale rod 21 b. The scale rod 21b rotates once in the scale sleeve 22b, and the scale rod 21b advances or retreats by a pitch distance along the axial direction of the scale rod 21b, and the scale rod 21a moves according to the same principle as the scale rod 21 b.
In some embodiments, when the scale rod 21a rotates clockwise relative to the scale sleeve 22a and the scale rod 21b rotates clockwise relative to the scale sleeve 22b, the scale rod 21a and the scale rod 21b gradually approach the target object along the axis direction thereof, which may be a process of clamping the target object; conversely, the scale bar 21a and the scale bar 21b are gradually distant from the target object in the direction of their axes, which may be a process of replacing the target object to be tested. The lengths of the scale sleeve 22a and the scale sleeve 22b are fixed.
Referring to a partially enlarged view a-a in fig. 3, which is an enlarged view of the scale rod 21b and the scale sleeve 22b, the structures of the scale rod 21a and the scale sleeve 22a are similar and are not repeated herein. The scale rod 21b and the scale sleeve 22b are provided with scales, and the positions of the scales are designed according to actual conditions. In this embodiment, the scale on the scale rod 21b is located on the lower edge of the scale rod 21b, and the scale on the scale sleeve 22b is located on the left edge of the scale sleeve 22 b. During reading, the scale on the scale rod 21b corresponding to the edge line of the left edge of the scale sleeve 22b is the reading of the scale rod 21b, and the scale on the scale sleeve 22b corresponding to the edge line of the lower edge of the scale rod 21b is the reading of the scale sleeve 22 b. Similarly, the scale corresponding to the position of the edge line of the right edge of the scale sleeve 22a on the scale rod 21a is the reading of the scale rod 21a, and the scale corresponding to the position of the edge line of the lower edge of the scale rod 21a on the scale sleeve 22a is the reading of the scale sleeve 22 a.
Referring to fig. 1, the measuring rod 2 further includes a rotating shaft 23, one end of the rotating shaft 23 extends into the scale rod 21, and the other end is connected to a knob 24. Specifically, referring to fig. 3, the rotating shaft 23 includes a rotating shaft 23a and a rotating shaft 23b, one end of the rotating shaft 23a extends into the scale rod 21a and is connected to the scale rod 21a through a thread, the other end of the rotating shaft 21a is connected to a knob 24a, the rotating knob 24a is rotated to drive the rotating shaft 23a to rotate, and the rotating shaft 23a drives the scale rod 21a to rotate through the thread. One end of the rotating shaft 23b extends into the scale rod 21b and is connected with the scale rod 21b through a thread, the other end of the rotating shaft 21b is connected with a knob 24b, the rotating knob 24b can drive the rotating shaft 23b to rotate, and the rotating shaft 23b drives the scale rod 21b to rotate through the thread. In some embodiments, the rotating shafts 23a and 23b do not extend into the scale rod 21a and the scale rod 21b to be connected through threads, and the rotating shafts 23a and the scale rod 21a, the rotating shafts 23b and the scale rod 21b are simply connected end to end, or are integrally formed. In some embodiments, the rotation shaft 23a and the rotation shaft 23b may not be provided, the knob 24a and the knob 24b may be directly mounted at one end of the scale rod 21a and the scale rod 21b, respectively, or the rotation shaft 23a, the rotation shaft 23b, the knob 24a and the knob 24b may not be provided, as long as the scale rod can be rotated in the scale sleeve to approach or separate from the target object.
Referring to the enlarged partial view a-a in fig. 3, the graduated rod 21b may further be sleeved with a ratchet mechanism 25, and the ratchet mechanism 25 is located in the graduated sleeve 22b, in some embodiments, the ratchet mechanism 25 is disposed at the other end (hereinafter referred to as "knob end") of the graduated rod 26b opposite to the clamping end, and similarly, the graduated rod 21a at the other side is also sleeved with the same ratchet mechanism 25. The ratchet mechanism 25 of the embodiment of the application can be any ratchet structure in the prior art, as long as the contact degree between the clamping end of the scale rod 21a and the clamping end of the scale rod 21b and the point to be tested can be judged by the sound emitted by the ratchet mechanism 25, and the ratchet mechanism 25 can be arranged to realize accurate and uniform measurement.
Referring to fig. 1 and 3, an adjusting apparatus according to an embodiment of the present invention includes a standard lever 31, a pair of fixed levers 32a and 32b, and a movable lever 33. Wherein the standard bar 31 is arranged in parallel with the measuring bar 2, and the length of the standard bar 31 is fixed. The fixing rods 32a and 32b are respectively installed at two ends of the standard rod 31 and respectively connected to the scale sleeve 22a and the scale sleeve 22 b. The moving rod 33 penetrates the standard rod 31 and is perpendicular to the worktable 1.
When the adjusting device works, the standard rod 31 can move along the axis direction of the moving rod 33, that is, the standard rod 31 can move up and down, so that the fixed rod 32a and the fixed rod 32b are driven to move up and down, and further the scale sleeve 22a and the scale sleeve 22b, the scale rod 21a and the scale rod 21b are driven to move up and down, so that the thickness measurement at different positions in the height direction of the lithium battery is realized. In addition, the moving rod 33 can drive the standard rod 31 to move along the direction perpendicular to the axis of the standard rod 31, so as to drive the fixing rod 32a and the fixing rod 32b to move, and further drive the scale sleeve 22a and the scale sleeve 22b and the scale rod 21a and the scale rod 21b to move back and forth, thereby realizing the measurement of the thickness of different positions in the width direction of the lithium battery. When the position of the point to be tested is adjusted, the movable rod 33 can be manually held and moves along the direction perpendicular to the axis of the standard rod 31, the position of the point to be tested is changed in the width direction of the lithium battery, and the position of the standard rod 31 on the movable rod 33 can also be manually adjusted to drive the scale sleeve 22a and the scale sleeve 22b, the scale rod 21a and the scale rod 21b to move up and down, so that the position of the point to be tested is changed in the height direction of the lithium battery.
When the positions of the standard rod 31 and the moving rod 33 are manually adjusted, a certain mechanical structure may be used, for example, a sliding block 34 may be connected to the lower end of the moving rod 33, a sliding groove 35 is formed in the workbench 1 along the direction perpendicular to the axis of the standard rod, the sliding block 34 may move in the sliding groove 35 and drive the moving rod 33 to move along the direction perpendicular to the axis of the standard rod 31, so as to change the position of the point to be tested in the width direction of the lithium battery.
With reference to fig. 1 and 3, the measuring device may further include a positioning mechanism including: the positioning plate 4 is positioned above the target object P, and applies certain pressure to the target object P to fix the target object P; and the lifting rod 5 is connected with the positioning plate 4 to adjust the position of the positioning plate 4, so that the lithium batteries with different heights are compatible. The lifting rod 5 can be connected with other mechanisms for adjusting the height of the lifting rod 5.
Assuming that the thickness of the target object is T, the scale bar 21B reads B1The scale bar 21a has a reading B2The scale sleeve 22b reads C1The scale sleeve 22a has a reading C2The length of the standard rod 31 is D, and the length of the scale sleeve 22a is E1 Scale ofThe sleeve 22b has a length E2Then T ═ D-B1-B2-C1-C2-E1-E2。
The measuring device of the embodiment of the application can test the thickness of different positions of the lithium battery, can be compatible with the measurement of the thickness of the lithium batteries with different sizes, and can ensure the accuracy of a detection result and be simple to operate.
In conclusion, upon reading the present detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure can be presented by way of example only, and not limitation. Those skilled in the art will appreciate that the present application is intended to cover various reasonable variations, adaptations, and modifications of the embodiments described herein, although not explicitly described herein. Such alterations, improvements, and modifications are intended to be suggested by this disclosure, and are within the spirit and scope of the exemplary embodiments of this disclosure.
Furthermore, certain terminology has been used in this application to describe embodiments of the disclosure. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the disclosure.
It should be appreciated that in the foregoing description of embodiments of the disclosure, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of the subject disclosure. Alternatively, various features may be dispersed throughout several embodiments of the application. This is not to be taken as an admission that any of the features of the claims are essential, and it is fully possible for a person skilled in the art to extract some of them as separate embodiments when reading the present application. That is, embodiments in the present application may also be understood as an integration of multiple sub-embodiments. And each sub-embodiment described herein is equally applicable to less than all features of a single foregoing disclosed embodiment.
In some embodiments, numbers expressing quantities or properties used to describe and claim certain embodiments of the application are to be understood as being modified in certain instances by the term "about", "approximately" or "substantially". For example, "about," "approximately," or "substantially" can mean a ± 20% variation of the value it describes, unless otherwise specified. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as possible.
Each patent, patent application, publication of a patent application, and other material, such as articles, books, descriptions, publications, documents, articles, and the like, cited herein is hereby incorporated by reference. All matters hithertofore set forth herein except as related to any prosecution history, may be inconsistent or conflicting with this document or any prosecution history which may have a limiting effect on the broadest scope of the claims. Now or later associated with this document. For example, if there is any inconsistency or conflict in the description, definition, and/or use of terms associated with any of the included materials with respect to the terms, descriptions, definitions, and/or uses associated with this document, the terms in this document are used.
Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the disclosed embodiments are presented by way of example only, and not limitation. Those skilled in the art may implement the present application in alternative configurations according to the embodiments of the present application. Thus, embodiments of the present application are not limited to those embodiments described with accuracy in the application.